Power Saving of an Intelligent Repeater Based on a Trigger Signal

Abstract

Methods, systems, and devices for wireless communication are described. For example, the techniques described provide for operation of a wireless device (e.g., a wireless repeater, a wireless relay device, a smart repeater, etc.) in a low power state and for base station signaling for triggering the configuration of a wireless repeater control interface. For example, a wireless repeater may operate in a power saving mode and monitor control information from a base station according to a low power state or a slow state (e.g., according to a monitoring periodicity that is long relative to a monitoring periodicity associated with a full power state or a fast state). Upon detecting a trigger signal from the base station, the wireless repeater may switch to monitoring control information from the base station according to a fast state (e.g., according to a short, or more frequent, monitoring periodicity relative to a monitoring periodicity associated with the low power state).

Description

[0001] Cross-reference

[0002] This patent application claims priority to U.S. Patent Application No. 16 / 943,899, titled "POWER SAVING OF SMART REPEATERS BASED ON A TRIGGERING SIGNAL," filed Jul. 30, 2020, by Li et al., which claims the benefit of U.S. Provisional Patent Application No. 62 / 881,891, titled "POWER SAVING OF SMART REPEATERS BASED ON A TRIGGERING SIGNAL," filed Aug. 1, 2019, by Li et al., the entireties of both of which are assigned to the assignee of the present application.

[0003] Introduction

[0004] The following relates to wireless communications, including managing repeaters.

[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasts, and the like. These systems may be capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multi-access systems include fourth-generation (4G) systems (such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems), and fifth-generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems may employ various techniques, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multi-access communication system may include several base stations or network access nodes, each of which simultaneously supports communication for multiple communication devices, which may also be referred to as user equipment (UE).

[0006] Overview

[0007] A method for wireless communication at a wireless repeater is described. The method may include receiving a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The method may include receiving a periodic signal from the base station during a configured period, measuring one or more energy levels associated with the received periodic signal across the configured period based on the received control interface trigger configuration, and configuring the control interface based on the one or more measured energy levels and the control interface trigger configuration.

[0008] An apparatus for wireless communication at a wireless repeater is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to receive a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The processor and the memory may be configured to receive a periodic signal from the base station during a configured period, measure one or more energy levels associated with the received periodic signal across the configured period based on the received control interface trigger configuration, and configure the control interface based on the one or more measured energy levels and the control interface trigger configuration.

[0009] Another device for wireless communication at a wireless repeater is described. The device may include means for receiving a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The device may include means for performing the following operations: receiving a periodic signal from the base station during a configured period, measuring one or more energy levels associated with the received periodic signal across the configured period based on the received control interface trigger configuration, and configuring the control interface based on the one or more measured energy levels and the control interface trigger configuration.

[0010] A non-transitory computer-readable medium storing code for wireless communication at a wireless repeater is described. The code may include instructions executable by a processor to receive a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The code may include instructions executable by a processor to perform the following operations: receiving a periodic signal from the base station during a configured period, measuring one or more energy levels associated with the received periodic signal across the configured period based on the received control interface trigger configuration, and configuring the control interface based on the one or more measured energy levels and the control interface trigger configuration.

[0011] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: comparing one or more measured energy levels with the power threshold information, where the power threshold information includes power thresholds for one or more measured energy levels, a power profile for a configured period, or both.

[0012] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, configuring the control interface may include operations, features, apparatuses, or instructions for the following actions: powering the control interface for a first time duration based on one or more measured energy levels exceeding the power threshold.

[0013] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: using the control interface to monitor a control channel for a first time duration based on powering on the control interface; receiving control information from a base station before the expiration of the first time duration based on monitoring the control channel, where the control information includes one or more commands for the control interface; and configuring the control interface based on the one or more commands.

[0014] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: using the control interface to monitor a control channel for a first time duration based on powering on the control interface; and powering off the control interface upon the expiration of the first time duration.

[0015] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, configuring the control interface may include operations, features, apparatuses, or instructions for the following actions: powering the control interface for a first time duration based on one or more measured energy levels matching the power profile.

[0016] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: using the control interface to monitor a control channel for a first time duration based on powering on the control interface; receiving control information from a base station before the expiration of the first time duration based on monitoring the control channel, where the control information includes one or more commands for the control interface; and configuring the control interface based on the one or more commands.

[0017] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: monitoring a control channel for a first time duration using the control interface based on powering up the control interface; and powering down the control interface upon expiration of the first time duration.

[0018] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: determining a ratio between a first measured energy level and a second measured energy level among one or more measured energy levels, where the first measured energy level includes a first average power level of a first set of symbols of a periodic signal and the second measured energy level includes a second average power level of a second set of symbols of the periodic signal; and determining that the one or more measured energy levels match the power profile based on the ratio.

[0019] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, comparing one or more measured energy levels with the power threshold information may include operations, features, apparatuses, or instructions for performing the following actions: comparing the ratio with the power profile.

[0020] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the power profile includes a power variation pattern across a first set of symbols of a periodic signal and a second set of symbols of the periodic signal.

[0021] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, configuring the control interface may include operations, features, apparatuses, or instructions for the following actions: transitioning to a low power state based on one or more measured energy levels being below the power threshold.

[0022] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, configuring the control interface may include operations, features, apparatuses, or instructions for the following actions: transitioning to a low power state based on one or more measured energy levels being different from the power profile.

[0023] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the power threshold for one or more measured energy levels includes a constant power envelope for a configured time period. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the power profile for the configured time period includes an energy-time variation pattern across the configured time period.

[0024] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, measuring one or more energy levels associated with a received periodic signal over a configured period may include operations, features, apparatuses, or instructions for: measuring a first average energy level of a first symbol of the received periodic signal over the configured period; and measuring a second average energy level of one or more remaining symbols of the received periodic signal over the configured period.

[0025] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, configuring a control interface may include operations, features, apparatuses, or instructions for: powering the control interface for a first time duration or transitioning to a low-power state based on a difference between the first average energy level and the second average energy level.

[0026] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the power threshold information includes the difference. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: performing an amplification operation on the received periodic signal; and transmitting the amplified periodic signal to a UE. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the periodic signal includes a synchronization signal block and the configured period includes four symbols of the synchronization signal block.

[0027] A method for wireless communication at a base station is described. The method may include: transmitting a control interface trigger configuration to a wireless repeater, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater; determining one or more transmit power levels for a periodic signal over a configured period based on the configuration of the wireless repeater and the control interface trigger configuration; and transmitting the periodic signal during the configured period based on the one or more determined transmit power levels.

[0028] An apparatus for wireless communication at a base station is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to transmit a control interface trigger configuration to a wireless repeater, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The processor and the memory may be configured to: determine one or more transmit power levels for a periodic signal over a configured period based on the configuration of the wireless repeater and the control interface trigger configuration; and transmit the periodic signal during the configured period based on the one or more determined transmit power levels.

[0029] Describes another device for wireless communication at a base station. The device may include means for: transmitting a control interface trigger configuration to a wireless repeater, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater; determining one or more transmit power levels for a periodic signal during a configured period based on the configuration of the wireless repeater and the control interface trigger configuration; and transmitting the periodic signal during the configured period based on the one or more determined transmit power levels.

[0030] Describes a non-transitory computer-readable medium storing code for wireless communication at a base station. The code may include instructions executable by a processor to transmit a control interface trigger configuration to a wireless repeater, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The code may further include instructions executable by the processor to: determine one or more transmit power levels for a periodic signal during a configured period based on the configuration of the wireless repeater and the control interface trigger configuration; and transmit the periodic signal during the configured period based on the one or more determined transmit power levels.

[0031] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for: determining whether to send new control information to the wireless repeater based on the configuration of the wireless repeater; and determining whether to trigger powering of the control interface of the wireless repeater based on determining whether to send new control information to the wireless repeater.

[0032] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, one or more transmit power levels for a periodic signal during a configured period may be determined based on determining whether to trigger powering of the control interface of the wireless repeater and the power threshold information.

[0033] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for: determining new control information for the wireless repeater; and determining to trigger powering of the control interface of the wireless repeater based on the new control information, where at least one of the one or more transmit power levels may be determined based on determining to trigger powering of the control interface of the wireless repeater; and boosting the at least one of the one or more transmit power levels for the periodic signal.

[0034] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, boosting at least one of one or more transmit power levels may include operations, features, apparatuses, or instructions for the following actions: boosting the at least one of the one or more transmit power levels by a difference compared to the remaining power levels of the one or more transmit power levels, wherein the power threshold information includes the difference.

[0035] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the boosting may be based on the power threshold information. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the power threshold information includes a power threshold for one or more transmit power levels, a power profile for a configured period, or both.

[0036] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the power threshold for one or more transmit power levels includes a constant power envelope for a configured period. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the power profile for a configured period includes an energy-time variation pattern across the configured period.

[0037] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: transmitting new control information to the wireless repeater before a first time duration expires, wherein the control interface triggers a configuration indicating the first time duration. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the periodic signal includes a synchronization signal block and the configured period includes four symbols of the synchronization signal block.

[0038] A method for wireless communication at a wireless device in a wireless network is described. The method may include: receiving, from a base station, a control interface trigger configuration, wherein the control interface trigger configuration includes power threshold information for powering the control interface of the wireless device; and receiving, during a configured period, a periodic signal from the base station. The method may further include: measuring, at least in part based on the received control interface trigger configuration, one or more energy levels associated with the received periodic signal across the configured period; and configuring the control interface, at least in part based on the one or more measured energy levels and the control interface trigger configuration.

[0039] Describes an apparatus for wireless communication at a wireless device in a wireless network. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: receive a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless device; and receive a periodic signal from the base station during a configured period. The processor and the memory may be configured to: measure one or more energy levels associated with the received periodic signal across the configured period, at least in part based on the received control interface trigger configuration; and configure the control interface, at least in part based on the one or more measured energy levels and the control interface trigger configuration.

[0040] Describes another device for wireless communication at a wireless device in a wireless network. The device may include means for: receiving a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless device; and receiving a periodic signal from the base station during a configured period. The device may further include means for: measuring one or more energy levels associated with the received periodic signal across the configured period, at least in part based on the received control interface trigger configuration; and configuring the control interface, at least in part based on the one or more measured energy levels and the control interface trigger configuration.

[0041] Describes a non-transitory computer-readable medium storing code for wireless communication at a wireless device in a wireless network. The code may include instructions executable by a processor for: receiving a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless device; and receiving a periodic signal from the base station during a configured period. The code may further include instructions executable by the processor for: measuring one or more energy levels associated with the received periodic signal across the configured period, at least in part based on the received control interface trigger configuration; and configuring the control interface, at least in part based on the one or more measured energy levels and the control interface trigger configuration.

[0042] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following action: comparing one or more measured energy levels with the power threshold information, where the power threshold information includes a power threshold for one or more measured energy levels, a power profile for the configured period, or both.

[0043] Some examples of measuring one or more energy levels associated with a received periodic signal over a configured period may further include operations, features, apparatuses, or instructions for the following actions: measuring a first average energy level of a first symbol of the received periodic signal over the configured period; and measuring a second average energy level of one or more remaining symbols of the received periodic signal over the configured period. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 Illustrates examples of systems for wireless communication that support power savings for a trigger signal-based intelligent repeater in accordance with one or more aspects of the present disclosure.

[0046] Figure 2 Illustrates examples of wireless communication systems that support power savings for a trigger signal-based intelligent repeater in accordance with one or more aspects of the present disclosure.

[0047] Figure 3 Illustrates examples of transmit power diagrams that support power savings for a trigger signal-based intelligent repeater in accordance with one or more aspects of the present disclosure.

[0048] Figure 4 Illustrates examples of process flows that support power savings for a trigger signal-based intelligent repeater in accordance with one or more aspects of the present disclosure.

[0049] Figure 5 and 6 Shows a block diagram of a device that supports power savings for a trigger signal-based intelligent repeater in accordance with one or more aspects of the present disclosure.

[0050] Figure 7 Shows a block diagram of a communication manager that supports power savings for a trigger signal-based intelligent repeater in accordance with one or more aspects of the present disclosure.

[0051] Figure 8 Shows a diagram of a system that includes a device that supports power savings for a trigger signal-based intelligent repeater in accordance with one or more aspects of the present disclosure.

[0052] Figure 9 and 10 Shows a block diagram of a device that supports power savings for a trigger signal-based intelligent repeater in accordance with one or more aspects of the present disclosure.

[0053] Figure 11 Shows a block diagram of a communication manager that supports power savings for a trigger signal-based intelligent repeater in accordance with one or more aspects of the present disclosure.

[0054] Figure 12A diagram of a system including a device that supports power saving of an intelligent repeater based on a trigger signal in accordance with one or more aspects of the present disclosure is shown.

[0055] Figures 13 to 18 A method for supporting power saving of an intelligent repeater based on a trigger signal in accordance with one or more aspects of the present disclosure is illustrated.

[0056] Detailed description

[0057] In some wireless communication systems, a base station may communicate with a UE via a wireless link. For example, the base station and the UE may operate in a millimeter wave (mmW) frequency range (e.g., 28 gigahertz (GHz), 40 GHz, 60 GHz, etc.). Wireless communication at these frequencies may be associated with increased signal attenuation (e.g., path loss), which may be affected by various factors such as temperature, air pressure, diffraction, blockage, etc. As a result, signal processing techniques such as beamforming may be used to coherently combine energy and reduce some of the path loss at these frequencies. However, the transmission of a signal (such as a beamformed signal) between the base station and the UE may be impossible or may be interfered with due to physical obstacles or radio frequency (RF) interferers. In these cases, a relay device (e.g., a wireless repeater, an intelligent repeater, an mmW repeater, a wireless relay device, etc.) may be used to repeat and / or relay the transmission from the base station to the UE (and vice versa), thereby enabling efficient communication in the presence of physical obstacles, RF interferers, or other blocking or interfering reasons. In some examples, a relay device such as an intelligent repeater may be capable of having advanced operating features as described herein.

[0058] A wireless repeater may relay, extend, or redirect a signal received from a base station to a UE, relay, extend, or redirect a wireless signal received from the UE to the base station, or relay, extend, or redirect wireless signals between other wireless devices. For example, a wireless repeater may receive a signal from a base station and retransmit the signal to the UE, or receive a signal from the UE and retransmit the signal to the base station. In some examples, a wireless repeater may amplify and forward (e.g., amplify and transmit) a signal transmitted between wireless devices. In a situation where the transmission from the base station to the UE (and vice versa) is blocked due to a physical obstacle or is associated with a path loss affected by various factors (e.g., such as the distance between the base station and the UE, temperature, air pressure, diffraction, blockage, etc.), a wireless repeater may receive a signal transmitted between wireless devices, amplify the received signal, and forward (e.g., transmit) the amplified signal to facilitate efficient communication between the wireless devices.

[0059] Additionally, in some cases, various phase rotations can be applied to the signals transmitted between wireless devices, where for example a base station can transmit a signal at a first carrier frequency with a phase rotation (e.g., pre-rotation). In cases where transmissions from the base station to the UE (and vice versa) are blocked due to an RF jammer, the RF jammer can corrupt certain frequencies, and those frequencies (such as the frequency used for transmission by the base station) may thus be unreliable for transmission. Accordingly, a wireless repeater can be used to transmit (or retransmit) the signal after amplifying the signal or performing a frequency conversion from the first carrier frequency to the second carrier frequency (e.g., heterodyning). For example, the second carrier frequency can be different from the frequency used to transmit the signal to the wireless repeater, and the new frequency can be unaffected by interference from the RF jammer.

[0060] Accordingly, a wireless repeater can be configured to perform relay operations (e.g., wireless repeater operations such as signal amplification, signal phase rotation, signal forwarding, etc.) to reduce or minimize path loss or interference in various environments. In some cases, the wireless repeater can be configured via base station control signaling. For example, the base station can control parameters for wireless repeater forwarding such as amplification, direction, frequency gain, frequency conversion, etc. Accordingly, the wireless repeater can monitor a control channel (e.g., the Physical Downlink Control Channel (PDCCH)) to look for control information from the base station in order to configure and perform relay (e.g., amplify and forward) duties. However, in some cases, diligently monitoring control information (e.g., monitoring each time slot of the control channel) can be associated with high power consumption at the wireless repeater. Additionally, in cases where the UE is not attached to the wireless repeater or the base station or where the attached UE is powered down or not actively communicating with the base station, etc., such monitoring of control information can be inefficient because it is less likely to configure relay duties or may configure relay duties less frequently in such cases.

[0061] The described techniques relate to improved methods, systems, devices, and apparatuses for supporting power savings for intelligent repeaters (e.g., which can be referred to as wireless repeaters, repeaters, mmW repeaters, etc.). The described techniques can provide for wireless devices (e.g., wireless repeaters, wireless relay devices, intelligent repeaters, etc.) to operate in a low power state and for base station signaling to trigger wireless repeater control interface configuration. For example, a wireless repeater can operate in a power saving mode and monitor control information from the base station according to a low power state or slow state (e.g., according to a monitoring periodicity that is long relative to the monitoring periodicity associated with a full power state or fast state). Upon detecting a trigger signal from the base station, the wireless repeater can switch to monitoring control information from the base station according to a fast state (e.g., according to a short, or more frequent, monitoring periodicity relative to the monitoring periodicity associated with the low power state).

[0062] For example, the base station may trigger a certain wireless repeater configuration (e.g., a certain configuration of the control interface of the wireless repeater) by setting the transmission power level of a certain periodic signal for monitoring by the wireless repeater. The base station may indicate to the wireless repeater a control interface trigger configuration, where the control interface trigger configuration may include power threshold information for powering the control interface of the wireless repeater. For example, the control interface trigger configuration may include power threshold information such as a power threshold (e.g., a constant power envelope for the configured periodic signal), a power profile (e.g., an energy-time-variation pattern across the configured periodic signal), etc. Thus, the wireless repeater may measure one or more energy levels associated with the configured periodic signal (e.g., the signal that the wireless repeater is configured to relay), and the wireless repeater may compare the measured one or more energy levels with the power threshold information indicated by the control interface trigger configuration to configure the control interface of the wireless repeater.

[0063] In some cases, the base station may base the control interface trigger configuration on a periodic signal, such as a Synchronization Signal Block (SSB). The wireless repeater may be configured to periodically monitor (e.g., and forward to the UE) the SSB during a configured period associated with the SSB transmission from the base station. The wireless repeater may thus operate in a low-power state and infrequently monitor control information or not monitor control information at all until it receives a trigger signal (e.g., an SSB associated with one or more measured energy levels that trigger the power supply to the control interface). Thus, the base station may configure or trigger wireless repeater control channel monitoring by setting the transmission power level of one or more symbols across the SSB, such that when the wireless repeater measures one or more energy levels associated with the triggering SSB, the wireless repeater may configure the control interface of the wireless repeater according to the control interface trigger configuration.

[0064] The base station may establish control interface trigger configurations for various wireless repeater states. For example, in some cases, the control interface trigger configuration may be established to transition the wireless repeater from a low-power state to an active state (e.g., the control interface trigger configuration may be established to power on the control interface of the wireless repeater). The control interface trigger configuration may be established to configure any state of the wireless repeater (e.g., the control interface trigger configuration may be established to power off the control interface of the wireless repeater, to periodically modify the control channel monitoring of the control interface of the wireless repeater to a certain monitoring periodicity indicated by the control interface trigger configuration, etc.).

[0065] The trigger signal can thus be any periodic signal that triggers the configuration of a wireless repeater based on one or more power levels, configured by a base station based on a certain associated control interface (e.g., control interface configuration). According to some examples, the trigger signal can be an SSB, where the base station can transmit the SSB at a certain boosted power level, with a certain power variation across parts (e.g., symbols) of the SSB, etc. Thus, when the wireless repeater measures one or more energy levels across a configured time period associated with the SSB, the wireless repeater can compare the one or more measured energy levels with power thresholds for the one or more measured energy levels, a power profile for the configured time period, etc. (e.g., according to the control interface trigger configuration). The wireless repeater can then configure the control interface based on this comparison (e.g., based on whether the SSB is truly a trigger signal configured according to the control interface trigger configuration) (e.g., power on the control interface, switch the control interface to a more frequent control channel monitoring mode, power off the control interface, switch the control interface to a less frequent control channel monitoring mode, etc.).

[0066] The base station can further transmit control commands via the control channel (e.g., a fast command that configures the wireless repeater to monitor the control channel more frequently, a slow command that configures the wireless repeater to monitor the control channel less frequently, etc.) to modify the monitoring configuration of the wireless repeater. For example, upon detecting the trigger signal, the wireless repeater can transition to a trial fast state and monitor the control channel for control commands from the base station according to the trial fast state. If no control command is received from the base station (e.g., before a certain first time period associated with the control interface trigger configuration expires), the wireless repeater can transition back to the slow state (e.g., and monitor the control channel less frequently according to the slow state).

[0067] Aspects of the present disclosure are initially described in the context of a wireless communication system. Example transmit power diagrams and example process flows for implementing one or more aspects of the techniques discussed are then described. Aspects of the present disclosure are further illustrated by apparatus diagrams, system diagrams, and flowcharts related to power savings of an intelligent repeater based on a trigger signal and are described with reference to these diagrams.

[0068] Figure 1An example of a wireless communication system 100 that supports power saving for an intelligent repeater is explained in accordance with one or more aspects of the present disclosure. The wireless communication system 100 includes a network device 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 may be an LTE network, an LTE-A network, an LTE-A Pro network, or an NR network. In some scenarios, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low latency communication, or communication with low-cost and low-complexity devices. The wireless communication system 100 may support signaling for control channel monitoring for configuring and managing the repeater 140 between the network device 105, the repeater 140, and the UE 115.

[0069] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC), which may include at least one mobility management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME may manage non-access stratum (e.g., control plane) functions such as mobility, authentication, and bearer management of the UE 115 served by the network device 105 associated with the EPC. User IP packets may be transmitted through the S-GW, which may itself be connected to the P-GW. The P-GW may provide IP address allocation and other functions. The P-GW may be connected to the network operator IP services. The operator IP services may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or a packet-switched (PS) streaming service.

[0070] At least some of the network devices 105 (e.g., network device 105-a, which may be an example of a base station (e.g., eNB, network access device, gNB) or network device 105-b, which may be an example of an access node controller (ANC)) may interface with the core network 130 via a backhaul link 132 (e.g., S1, S2) and may perform radio configuration and scheduling for communication with the UE 115. In various examples, the network devices 105-b may communicate with each other directly or indirectly (e.g., via the core network 130) over a backhaul link 134 (e.g., X1, X2), which may be a wired or wireless communication link.

[0071] Each network device 105-b may additionally or alternatively communicate with a number of UEs 115 via a number of other network devices 105-c, where the network devices 105-c may be examples of intelligent radio heads (or via a number of intelligent radio heads). In an alternative configuration, the various functions of each network device 105 may be distributed across various network devices 105 (e.g., radio heads and access network controllers) or combined into a single network device 105 (e.g., a base station).

[0072] The network device 105 may wirelessly communicate with the UE 115 via one or more base station antennas. The network device 105 described herein may include or may be referred to by those skilled in the art as a base transceiver station, radio base station, access point, radio transceiver, Node B, eNB, next generation Node B, or gigabit Node B (any of which may be referred to as a gNB), home Node B, home evolved Node B, or some other suitable term. The wireless communication system 100 may include different types of network devices 105 (e.g., macro cell base stations or small cell base stations). The UE 115 described herein may be capable of communicating with various types of network devices 105 and network equipment, including macro eNBs, small cell eNBs, gNBs, relay base stations, etc. In some examples, the network device 105 may wirelessly communicate with one or more repeaters 140 (e.g., relay devices, wireless repeaters), and the repeater 140 may support retransmission, amplification, frequency conversion, etc. of signaling to one or more other devices such as the UE 115. Similarly, the repeater 140 may be used to retransmit or forward signaling from the UE 115 to the network device 105.

[0073] Each network device 105 may be associated with a specific geographic coverage area 110 in which communication with various UEs 115 is supported. Each network device 105 may provide communication coverage for the corresponding geographic coverage area 110 via a communication link 125, and the communication link 125 between the network device 105 and the UE 115 may utilize one or more carriers. The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the network device 105 or a downlink transmission from the network device 105 to the UE 115. The downlink transmission may also be referred to as a forward link transmission, and the uplink transmission may also be referred to as a reverse link transmission.

[0074] The geographical coverage area 110 of the network device 105 can be divided into sectors that only form a part of the geographical coverage area 110, and each sector can be associated with a cell. For example, each network device 105 can provide communication coverage for macro cells, small cells, hotspots, or other types of cells, or various combinations thereof. In some examples, the network device 105 can be movable and thus provide communication coverage for a movable geographical coverage area 110. In some examples, different geographical coverage areas 110 associated with different technologies can overlap, and the overlapping geographical coverage areas 110 associated with different technologies can be supported by the same network device 105 or different network devices 105. The wireless communication system 100 can include, for example, a heterogeneous LTE / LTE-A / LTE-A Pro or NR network, where different types of network devices 105 provide coverage for various geographical coverage areas 110.

[0075] The term "cell" refers to a logical communication entity for communicating with the network device 105 (e.g., on a carrier), and can be associated with an identifier to distinguish adjacent cells operating via the same or different carriers (e.g., Physical Cell Identifier (PCID), Virtual Cell Identifier (VCID)). In some examples, a carrier can support multiple cells, and different cells can be configured according to different protocol types that can provide access for different types of devices (e.g., Machine Type Communication (MTC), Narrowband Internet of Things (NB-IoT), Enhanced Mobile Broadband (eMBB), or others). In some cases, the term "cell" can refer to a part (e.g., a sector) of the geographical coverage area 110 on which the logical entity operates.

[0076] Each UE 115 can be dispersed throughout the wireless communication system 100, and each UE 115 can be stationary or mobile. The UE 115 can also be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or some other suitable term, where "device" can also be referred to as a unit, station, terminal, or client. The UE 115 can also be a personal electronic device, such as a cellular phone, Personal Digital Assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, the UE 115 can also refer to a Wireless Local Loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or MTC device, etc., which can be implemented in various items (such as appliances, vehicles, meters, etc.). The UE 115 can communicate with the core network 130 through the communication link 135.

[0077] Some UEs 115 (such as MTC or IoT devices) can be low-cost or low-complexity devices and can provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC can refer to data communication technologies that allow devices to communicate with each other or with network device 105 without human intervention. In some examples, M2M communication or MTC can include communication from devices integrated with sensors or meters to measure or capture information and relay the information to a central server or application, which can utilize the information or present the information to a person interacting with the program or application. Some UEs 115 can be designed to collect information or implement automated behavior of machines. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wilderness survival monitoring, weather and geographical event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging. In some cases, repeater 140 can be an MTC or IoT device that is controlled by network device 105 or UE 115 via a low-bandwidth (low-frequency band) or NB-IoT connection and performs relaying of received signals without demodulating or decoding the received signals based on control information provided by the low-frequency band or NB-IoT connection.

[0078] Some UEs 115 can be configured to operate in power-saving modes, such as half-duplex communication (e.g., a mode that supports one-way communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication can be performed at a reduced peak rate. Other power-saving techniques for UEs 115 include entering a power-saving "deep sleep" mode when not participating in active communication or operating on limited bandwidth (e.g., according to narrowband communication). In some cases, UE115 can be designed to support critical functions (e.g., mission-critical functions), and wireless communication system 100 can be configured to provide ultra-reliable communication for these functions.

[0079] In some cases, UE 115 may also be able to communicate directly with other UEs 115 (e.g., using peer-to-peer (P2P) or device-to-device (D2D) protocols). One or more of a group of UEs 115 that utilize D2D communication may be within the geographical coverage area 110 of network device 105. Other UEs 115 in this group may be outside the geographical coverage area 110 of network device 105 or otherwise unable to receive transmissions from network device 105. In some cases, each group of UEs 115 that communicate via D2D communication may utilize a one-to-many (1:M) system, where each UE 115 transmits to every other UE 115 in the group. In some cases, network device 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving network device 105.

[0080] Each network device 105 may communicate with core network 130 and with each other. For example, network device 105 may interface with core network 130 via a backhaul link 132 (e.g., via S1, N2, N3, or other interfaces). Each network device 105 may communicate with each other directly (e.g., directly between network devices 105) or indirectly (e.g., via core network 130) on a backhaul link 134 (e.g., via X2, Xn, or other interfaces).

[0081] At least some network devices (such as network device 105) may include sub-components, such as an access network entity, which may be an example of an ANC. Each access network entity may communicate with UEs 115 via several other access network transmission entities, which may be referred to as radio heads, intelligent radio heads, or transmit / receive points (TRPs). In some configurations, the various functions of each access network entity or network device 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or consolidated into a single network device (e.g., network device 105).

[0082] Wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 MHz to 300 GHz. The 300 MHz to 3 GHz division may be referred to as the ultra-high frequency (UHF) division or the decimeter band because the wavelengths are in the range of approximately 1 decimeter to 1 meter in length. UHF waves may be blocked or redirected by buildings and environmental features. However, these waves may penetrate various structures sufficiently for macro cells to provide service to UEs 115 located indoors. Transmissions of UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 km) compared to transmissions using smaller frequencies and longer waves in the higher frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0083] The wireless communication system 100 may also operate in the super high frequency (SHF) band (also known as the centimeter band) using a frequency band from 3 GHz to 30 GHz. The SHF band includes frequency bands that can be opportunistically used by devices that can tolerate interference from other users (such as the 5 GHz industrial, scientific, and medical (ISM) band).

[0084] The wireless communication system 100 may also operate in the extremely high frequency (EHF) band of the spectrum (e.g., from 30 GHz to 300 GHz), which is also known as the millimeter band. In some examples, the wireless communication system 100 may support mmW communication between the UE 115 and the network device 105, and the EHF antennas of the corresponding devices may be even smaller and more closely spaced than UHF antennas. In some cases, this may enable the use of antenna arrays within the UE 115. However, the propagation of EHF transmissions may suffer even greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency bands, and the use of frequency bands designated across these frequency bands may vary by country or regulatory body.

[0085] In some cases, the wireless communication system 100 may utilize both licensed and unlicensed radio frequency bands. For example, the wireless communication system 100 may employ licensed-assisted access (LAA), LTE-unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as the 5 GHz ISM band). When operating in an unlicensed radio frequency band, wireless devices (such as the network device 105 and the UE 115) may employ a listen-before-talk (LBT) procedure to ensure that the frequency channel is clear before transmitting data. In some cases, operation in the unlicensed band may be coordinated with a CC operating in a licensed band based on a CA configuration (e.g., LAA). Operation in the unlicensed spectrum may include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or a combination of these. Duplexing in the unlicensed spectrum may be based on frequency-division duplexing (FDD), time-division duplexing (TDD), or a combination of both.

[0086] In some examples, network device 105 or UE 115 may be equipped with multiple antennas, which can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. For example, wireless communication system 100 may use a transmission scheme between a transmitting device (e.g., network device 105) and a receiving device (e.g., UE 115), where the transmitting device is equipped with multiple antennas and the receiving device is equipped with one or more antennas. MIMO communication can utilize multipath signal propagation to increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers, which can be referred to as spatial multiplexing. For example, the transmitting device may transmit multiple signals via different antennas or different combinations of antennas. Similarly, the receiving device may receive multiple signals via different antennas or different combinations of antennas. Each of these multiple signals can be referred to as a separate spatial stream and can carry bits associated with the same data stream (e.g., the same codeword) or different data streams. Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), where multiple spatial layers are transmitted to the same receiving device; and multi-user MIMO (MU-MIMO), where multiple spatial layers are transmitted to multiple devices.

[0087] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., network device 105 or UE 115) to shape or direct an antenna beam (e.g., a transmit beam or a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals communicated via the antenna elements of an antenna array such that signals propagating in a particular orientation relative to the antenna array experience constructive interference while other signals experience destructive interference. The adjustment of the signals communicated via the antenna elements can include the transmitting device or the receiving device applying a specific amplitude and phase shift to the signals carried via each antenna element associated with the device. The adjustment associated with each antenna element can be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0088] In one example, network device 105 may use multiple antennas or antenna arrays to perform beamforming operations for directional communication with UE 115. For example, some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times in different directions by network device 105, which may include a signal being transmitted according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by network device 105 or a receiving device such as UE 115) to identify the beam direction used by network device 105 for subsequent transmissions and / or receptions. Some signals (such as data signals associated with a particular receiving device) may be transmitted by network device 105 in a single beam direction (e.g., the direction associated with the receiving device such as UE 115). In some examples, the beam direction associated with a transmission in a single beam direction may be determined at least in part based on signals transmitted in different beam directions. For example, UE 115 may receive one or more signals transmitted by network device 105 in different directions, and UE 115 may report to network device 105 an indication of the signal that it receives with the highest signal quality or other acceptable signal quality. Although these techniques are described with reference to signals transmitted by network device 105 in one or more directions, UE 115 may use similar techniques for transmitting signals multiple times in different directions (e.g., for identifying the beam direction used by UE 115 for subsequent transmissions or receptions) or for transmitting signals in a single direction (e.g., for transmitting data to a receiving device).

[0089] A receiving device (e.g., UE 115, which may be an example of a mmW receiving device) may attempt multiple receive beams when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from network device 105. For example, the receiving device may attempt multiple receive directions by receiving via different antenna sub-arrays, processing received signals according to different antenna sub-arrays, receiving according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different receive beams or receive directions. In some examples, the receiving device may use a single receive beam to receive in a single beam direction (e.g., when receiving a data signal). The single receive beam may be aligned in a beam direction determined at least in part based on listening according to different receive beam directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio, or other acceptable signal quality based at least in part on listening according to multiple beam directions).

[0090] In some cases, the antennas of network device 105 or UE 115 may be located within one or more antenna arrays that can support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may co-locate at an antenna assembly such as an antenna tower. In some cases, the antennas or antenna arrays associated with network device 105 may be located at different geographical locations. Network device 105 may have an antenna array with several rows and columns of antenna ports that network device 105 can use for beamforming to support communication with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations.

[0091] In some cases, wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. On the user plane, the communication of the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. In some cases, the Radio Link Control (RLC) layer may perform packet segmentation and reassembly for communication on logical channels. The Medium Access Control (MAC) layer may perform priority handling and multiplex logical channels into transport channels. The MAC layer may also use Hybrid Automatic Repeat Request (HARQ) to provide retransmissions at the MAC layer, thereby improving link efficiency. On the control plane, the Radio Resource Control (RRC) protocol layer may provide the establishment, configuration, and maintenance of the RRC connection that supports the radio bearers for user plane data between UE 115 and network device 105 or core network 130. At the Physical (PHY) layer, transport channels may be mapped to physical channels.

[0092] In some cases, UE 115 and network device 105 may support retransmission of data to increase the likelihood that the data is successfully received. HARQ feedback is a technique that increases the likelihood of correctly receiving data on communication link 125. HARQ may include a combination of error detection (e.g., using Cyclic Redundancy Check (CRC)), Forward Error Correction (FEC), and retransmission (e.g., Automatic Repeat Request (ARQ)). HARQ may improve the throughput of the MAC layer in poor radio conditions (e.g., signal-to-noise ratio conditions). In some cases, a wireless device may support simultaneous slot HARQ feedback, where the device may provide HARQ feedback for data received in previous symbols in a particular slot during that slot. In other cases, the device may provide HARQ feedback in a subsequent slot or according to some other time interval.

[0093] Time intervals in LTE or NR can be expressed as multiples of a basic time unit which may, for example, refer to a sampling period T s = 1 / 30,720,000 seconds). The time intervals of communication resources may be organized according to radio frames each having a duration of 10 milliseconds (ms), where the frame period can be expressed as T f= 307,200 T s 。A radio frame can be identified by a system frame number (SFN) ranging from 0 to 1023. Each frame can include 10 subframes numbered from 0 to 9, and each subframe can have a duration of 1 ms. A subframe can be further divided into 2 time slots, each time slot having a duration of 0.5 ms, and each time slot can contain 6 or 7 modulation symbol periods (e.g., depending on the length of the cyclic prefix prefixed to each symbol period). Excluding the cyclic prefix, each symbol period can contain 2048 sampling periods. In some cases, a subframe can be the smallest scheduling unit of the wireless communication system 100 and can be referred to as a transmission time interval (TTI). In other cases, the smallest scheduling unit of the wireless communication system 100 can be shorter than a subframe or can be dynamically selected (e.g., in a burst of shortened TTI (sTTI) or in a selected component carrier using sTTI).

[0094] In some wireless communication systems, a time slot can be further divided into mini time slots containing multiple one or more symbols. In some instances, the symbols of a mini time slot or the mini time slot can be the smallest scheduling unit. For example, the duration of each symbol can vary depending on the subcarrier spacing or the operating frequency band. Further, some wireless communication systems can implement time slot aggregation, where multiple time slots or mini time slots are aggregated together and used for communication between the UE 115 and the network device 105.

[0095] The term "carrier" refers to a set of radio frequency spectrum resources that has a defined physical layer structure for supporting communication on the communication link 125. For example, a carrier of the communication link 125 can include a portion of a radio frequency spectrum band that operates according to the physical layer channels for a given radio access technology. Each physical layer channel can carry user data, control information, or other signaling. A carrier can be associated with a predefined frequency channel (e.g., E-UTRA absolute radio frequency channel number (EARFCN)) and can be located according to a channel raster for discovery by the UE 115. A carrier can be downlink or uplink (e.g., in FDD mode), or be configured to carry downlink communication and uplink communication (e.g., in TDD mode). In some examples, the signal waveform transmitted on a carrier can include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as OFDM or DFT-s-OFDM).

[0096] For different radio access technologies (e.g., LTE, LTE-A, LTE-A Pro, NR, etc.), the organizational structure of a carrier can be different. For example, the communication on a carrier can be organized according to a TTI or a time slot, and each of the TTI or time slot can include user data as well as control information or signaling that supports decoding the user data. The carrier can also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc.) and control signaling that coordinates the operation of the carrier. In some examples (e.g., in a carrier aggregation configuration), the carrier can also have acquisition signaling or control signaling that coordinates the operation of other carriers.

[0097] Physical channels can be multiplexed on a carrier according to various techniques. The physical control channel and the physical data channel can be multiplexed on a downlink carrier, for example, using time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. In some examples, the control information transmitted in the physical control channel can be distributed in a cascaded manner between different control regions (e.g., between a common control region or a common search space and one or more UE-specific control regions or UE-specific search spaces).

[0098] A carrier can be associated with a specific bandwidth of the radio frequency spectrum, and in some examples, this carrier bandwidth can be referred to as the "system bandwidth" of the carrier or the wireless communication system 100. For example, the carrier bandwidth can be one of several predetermined bandwidths of a carrier of a specific radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). In some examples, each served UE 115 can be configured to operate on part or all of the carrier bandwidth. In other examples, some UE 115 can be configured to operate using a narrowband protocol type associated with a predefined portion or range within the carrier (e.g., a set of subcarriers or RBs) (e.g., "in-band" deployment of the narrowband protocol type).

[0099] In a system adopting MCM technology, a resource element can include a symbol period (e.g., the duration of a modulated symbol) and a subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element can depend on the modulation scheme (e.g., the order of the modulation scheme). Thus, the more resource elements received by the UE 115 and the higher the order of the modulation scheme, the higher the data rate of the UE 115 can be. In an MIMO system, the wireless communication resources can refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers), and using multiple spatial layers can further increase the data rate of communicating with the UE 115.

[0100] Devices (e.g., network device 105 or UE 115) of the wireless communication system 100 may have a hardware configuration that supports communication on a specific carrier bandwidth, or may be configurable to support communication on one of the carrier bandwidths in a carrier bandwidth set. In some examples, the wireless communication system 100 may include network device 105 and / or UE 115 that support simultaneous communication via carriers associated with more than one different carrier bandwidth.

[0101] The wireless communication system 100 may support communication with UE 115 on multiple cells or carriers, which is a feature that may be referred to as carrier aggregation (CA) or multi-carrier operation. UE 115 may be configured with multiple downlink CCs and one or more uplink CCs according to a carrier aggregation configuration. Carrier aggregation may be used in conjunction with both FDD and TDD component carriers.

[0102] In some cases, the wireless communication system 100 may utilize an enhanced component carrier (eCC). The eCC may be characterized by one or more features including a wider carrier or frequency channel bandwidth, a shorter symbol duration, a shorter TTI duration, or a modified control channel configuration. In some cases, the eCC may be associated with a carrier aggregation configuration or a dual connectivity configuration (e.g., when multiple serving cells have suboptimal or non-ideal backhaul links). The eCC may also be configured to operate in unlicensed spectrum or shared spectrum (e.g., where more than one operator is allowed to use the spectrum). An eCC characterized by a wide carrier bandwidth may include one or more segments that may be utilized by a UE 115 that is unable to monitor the entire carrier bandwidth or is otherwise configured to use a limited carrier bandwidth (e.g., to conserve power).

[0103] In some cases, the eCC may utilize a symbol duration different from other CCs, which may include using a reduced symbol duration compared to the symbol duration of other CCs. The shorter symbol duration may be associated with an increased spacing between adjacent subcarriers. A device that utilizes an eCC (such as UE 115 or network device 105) may transmit a broadband signal (e.g., according to a frequency channel or carrier bandwidth of 20, 40, 60, 80 MHz, etc.) with a reduced symbol duration (e.g., 16.67 microseconds). The TTI in the eCC may include one or more symbol periods. In some cases, the TTI duration (i.e., the number of symbol periods in the TTI) may be variable.

[0104] A wireless communication system (such as, an NR system) may utilize any combination of licensed, shared, and unlicensed spectral bands, etc. The flexibility of the eCC symbol duration and subcarrier spacing may allow the eCC to be used across multiple spectrums. In some examples, NR shared spectrum may improve spectrum utilization and spectral efficiency, particularly through dynamic vertical (e.g., across the frequency domain) and horizontal (e.g., across the time domain) sharing of resources.

[0105] A UE 115 attempting to access a wireless network can perform initial cell search by detecting a Primary Synchronization Signal (PSS) from a network device 105. The PSS can achieve synchronization of slot timing and can indicate a physical layer identity value. The UE 115 can then receive a Secondary Synchronization Signal (SSS). The SSS can achieve radio frame synchronization and can provide a cell identity value, which can be combined with the physical layer identity value to identify the cell. The SSS can also achieve detection of the duplex mode and the cyclic prefix length. Some systems (such as TDD systems) can transmit the SSS but not the PSS. Both the PSS and the SSS can be located in the center 62 and 72 subcarriers of the carrier, respectively. In some cases, the network device 105 can use multiple beams to transmit synchronization signals (e.g., PSS, SSS, etc.) in a beam sweeping manner through the cell coverage area. In some cases, the PSS, SSS, and / or broadcast information (e.g., Physical Broadcast Channel (PBCH)) can be transmitted within an SSB on a corresponding directional beam, and one or more SSBs can be included in a synchronization signal burst.

[0106] The electromagnetic spectrum is generally subdivided into various classes, frequency bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating frequency bands have been identified as Frequency Range Designation FR1 (410 MHz – 7.125 GHz) and FR2 (24.25 GHz – 52.6 GHz). The frequency between FR1 and FR2 is generally referred to as the mid-band frequency. Although a part of FR1 is greater than 6 GHz, in various documents and articles, FR1 is generally (interchangeably) referred to as the “sub-6 GHz” band. A similar naming issue sometimes occurs with respect to FR2. Although different from the EHF band (30 GHz – 300 GHz) identified by the International Telecommunication Union (ITU) as the “millimeter wave” band, FR2 is generally (interchangeably) referred to as the “millimeter wave” band in various documents and articles.

[0107] Taking the above aspects into account, unless otherwise specifically stated, it should be understood that if used in this document, terms such as “sub-6 GHz” can generally represent frequencies that can be less than 6 GHz, can be within FR1, or can include the mid-band frequency. In addition, unless otherwise specifically stated, it should be understood that if used in this document, terms such as “millimeter wave” can generally represent frequencies that can include the mid-band frequency, can be within FR2, or can be within the EHF band.

[0108] The wireless communication system 100 may include one or more repeaters 140 (e.g., wireless repeaters 140). The wireless repeater 140 may include functionality for relaying, extending, and redirecting wireless signals transmitted within the wireless communication system. In some cases, the wireless repeater 140 may be used in a line-of-sight (LOS) or non-line-of-sight (NLOS) scenario. In the LOS scenario, directional (e.g., beamformed) transmissions (such as mmW transmissions) may be limited by path loss through the air. In the NLOS scenario (such as in an urban area or indoors), mmW transmissions may be limited by signal blockage or physical objects interfering with the signal. In either scenario, the wireless repeater 140 may be used to receive signals from a network device 105 (e.g., a base station) and transmit the signals to the UE 115, or to receive signals from the UE 115 and transmit the signals to the network device 105. The wireless repeater 140 may use beamforming, filtering, gain control, and phase correction techniques to improve signal quality and avoid RF interference to the transmitted signals. The wireless repeater 140 may apply a phase rotation adjustment to the signals to correct for phase rotation errors caused by frequency conversion in the repeater 140.

[0109] In some cases, the wireless repeater 140 may include a receive antenna array and a transmit antenna array. In some cases, the wireless repeater 140 may include digital filtering, and the wireless repeater 140 may include a signal processing chain connected (e.g., coupled, linked, attached) between the receive antenna array and the transmit antenna array. The signal processing chain may be implemented as a radio frequency integrated circuit (RFIC), which may include RF / microwave components (such as one or more phase shifters, low noise amplifiers (LNAs), power amplifiers (PAs), PA drivers, heterodyne mixers, carrier tracking circuits, gain controllers, power detectors, filters, or other circuitry) and digital components associated therewith (which may include one or more of a digital filter, a processor, an analog-to-digital (A / D) converter, a digital-to-analog (D / A) converter, or other circuitry). The phase shifters may be controlled by one or more beam controllers for beamforming to reduce signal interference. The heterodyne mixer may down-convert the frequency of the received signal to an intermediate frequency (IF) or baseband frequency that can be filtered by one or more filters, and the heterodyne mixer may up-convert the filtered signal back to a higher frequency. The signal processing chain may include a feedback path for monitoring the output of one or more PAs and adjusting the gain of one or more PA drivers to the PAs and the gain of one or more LNAs based on that output. The gain adjustment may be used to stabilize signal reception and transmission and improve the signal quality between various devices (such as the network device 105 and the UE 115). Accordingly, through beamforming, filtering, and gain control, the signal quality (e.g., mmW signals) in both LOS and NLOS scenarios can be improved.

[0110] As described, the wireless repeater 140 may include components in the analog / RF domain (e.g., antenna arrays and signal processing chain circuitry) and one or more digital filters or both analog and digital filters. Additionally, in some cases, the wireless repeater 140 may include digital circuitry for receiving control information (e.g., for receiving remote configuration of gain, direction, and for local oscillator tracking via sub-6 or mmW signals). In some cases where the control information is not received via mmW signals, the control information may be received using a radio access technology different from the radio access technology used between the network device 105 and the UE 115. For example, one or more side channels may be used to provide control information and may be implemented as protocols such as Bluetooth, ultra-wideband, wireless LAN, etc., and thus, the repeater 140 may include circuitry and / or a processor for the following actions: receiving and processing signals received via those protocols, and controlling beamforming at the RF components based on those signals received at the side channels.

[0111] Thus, generally, the repeater 140 may be configured to receive in-band control information or out-of-band control information. In-band control information may refer to control channel monitoring (e.g., and control information reception) within the same frequency band or the same frequency channel as the configured forwarding operation. For example, monitoring in-band control information may refer to monitoring control information in the same frequency band or frequency channel as the frequency band or frequency channel in which the repeater 140 is configured to monitor and forward communications between the network device 105 and the UE 115 (e.g., such as periodic signals). Out-of-band control information may refer to control information received in a different frequency band or a different frequency channel from the configured forwarding operation. For example, monitoring out-of-band control information may refer to monitoring control information in a different frequency band or frequency channel (e.g., such as a sub-6 GHz channel) from the frequency band or frequency channel in which the repeater 140 is configured to monitor and forward communications between the network device 105 and the UE 115 (e.g., such as a mmW channel). The techniques described herein may enable the repeater 140 to measure one or more energy levels over a configured period of time, and potentially trigger the monitoring of in-band or out-of-band control information based on one or more energy measurements and trigger configurations (e.g., control interface trigger configurations).

[0112] In some aspects, repeater 140 may refer to a mmW repeater 140, and may receive an analog mmW signal from network device 105, amplify the analog mmW signal, and transmit the amplified mmW signal to one or more UEs 115. In some aspects, mmW repeater 140 may be an analog mmW repeater, sometimes also referred to as a layer 1 mmW repeater 140. Additionally or alternatively, repeater 140 may be a wireless TRP (acting as a distributed unit of a (e.g., 5G access node)) that wirelessly communicates with network device 105 (acting as a central unit or access node controller of a (e.g., 5G access node)). In some examples, repeater 140 may receive, amplify, and transmit an analog mmW signal without performing analog-to-digital conversion on the analog mmW signal and / or without performing any digital signal processing on the mmW signal. In this way, latency may be reduced and the cost of manufacturing repeater 140 may be reduced. Additional details regarding repeater 140 are provided elsewhere in this document.

[0113] One or more of network devices 105 may include a communication manager 101, which may transmit a control interface trigger configuration to repeater 140, where the control interface trigger configuration includes power threshold information for powering the control interface of repeater 140; determine one or more transmit power levels for periodic signals during a configured period based on the configuration of repeater 140 and the control interface trigger configuration; and transmit a periodic signal during the configured period based on the one or more determined transmit power levels.

[0114] Repeater 140 may include a communication manager 102, which may receive a control interface trigger configuration from network device 105, where the control interface trigger configuration includes power threshold information for powering the control interface of repeater 140. Communication manager 102 may receive a periodic signal from network device 105 during the configured period and measure one or more energy levels associated with the received periodic signal across the configured period based on the received control interface trigger configuration. Communication manager 102 may then configure the control interface based on the one or more measured energy levels and the control interface trigger configuration.

[0115] Figure 2 An example of a wireless communication system 200 that supports power savings for an intelligent repeater based on a trigger signal in accordance with one or more aspects of the present disclosure is illustrated. In some examples, wireless communication system 200 may implement aspects of wireless communication system 100. For example, wireless communication system 200 may include a base station 105-a and a UE 115-a, which may be as described with reference to Figure 1Examples of the described network device 105 and UE 115. The base station 105-a may communicate with one or more UEs 115. In some cases, the communication may be relayed from the base station 105-a to the UE 115 (and vice versa) by one or more repeaters 205 (e.g., wireless repeaters) such as repeater 205-a, which may be an example of the repeater 140 described with reference to Figure 1 In the example of Figure 2 , the repeater 205-a may monitor the downlink control channel 210 for control information 215 sent by the base station 105-a. Additionally, the repeater 205-a may monitor a configured time slot (e.g., an SSB time slot) for a periodic signal 220 (e.g., such as an SSB) that may be sent by the base station 105-a. In some cases, the repeater 205-a may be configured to forward the signal 220 (e.g., to deliver the forwarded signal 220 to the UE 115-a).

[0116] As discussed herein, the repeater 205 may relay signals between the base station 105 and the UE 115 to avoid or reduce blockage or interference. For example, in some cases, there may be an object blocking the signal from being transmitted from the base station 105-a to the UE 115-a (and vice versa). The object may be a physical object, or in some cases may be a frequency jammer (such as an RF jammer). Physical objects that may block the transmitted signal may include hills, mountains, buildings, walls, other infrastructure, etc. The RF jammer may operate by targeting, interfering with, blocking, or disrupting certain frequencies on which the transmission is sent. As an example, the RF jammer may include another wireless device (e.g., other base stations 105, UEs 115, etc.), other types of transmissions or signals (e.g., radar, satellites, etc.), etc. The RF jammer may include RF jammers that affect the transmission through adjacent channel selectivity (ACS), in-band blocking (IBB), and out-of-band (OOB) interference.

[0117] In Figure 2In the example, the repeater 205-a can relay, extend, or redirect the wireless signal received from the base station 105-a to the UE 115-a, relay, extend, or redirect the wireless signal received from the UE 115-a to the base station 105-a, or relay, extend, or redirect the wireless signal between other wireless devices. For example, the repeater 205-a can receive a signal from the base station 105-a and retransmit the signal to the UE 115-a, or receive a signal from the UE 115-a and retransmit the signal to the base station 105-a. In some examples, the repeater 205-a can amplify and forward (e.g., amplify and transmit) the signal transmitted between the base station 105-a and the UE 115-a. In a scenario where the transmission from the base station 105-a to the UE 115-a (and vice versa) is blocked due to physical obstacles or is associated with path loss affected by various factors (e.g., such as the distance between the base station and the UE, temperature, air pressure, diffraction, blockage, etc.), the repeater 205-a can receive the signal transmitted between the base station 105-a and the UE 115-a, amplify the received signal, and forward the amplified signal to facilitate efficient communication between the base station 105-a and the UE 115-a.

[0118] For example, to support communication between the base station 105-a and the UE 115-a, the repeater 205-a can amplify and forward the SSB (e.g., to relay system information to the UE 115), and amplify and forward the random access channel (RACH) message (e.g., to facilitate the UE 115 random access procedure). Thus, the repeater 205-a can facilitate the attachment (e.g., connection) of the UE 115-a to the base station 105-a (e.g., via the relay of system information and random access messages). In addition, the repeater 205-a can relay the communication between the base station 105-a and the UE 115-a after the UE 115-a is attached (e.g., the communication on the connection established between the base station 105-a and the UE 115-a).

[0119] As discussed herein, the repeater 205-a can be configured to perform relay operations (e.g., wireless repeater operations such as signal amplification, signal phase rotation, signal forwarding, etc.) to reduce or minimize path loss or interference of various communications in various environments. In some cases, the repeater can be configured via base station 105-a control signaling. For example, base station 105-a can control parameters (such as amplification, direction, frequency gain, frequency transformation, etc.) of the signal forwarded by repeater 205-a for various communications (e.g., synchronization signaling, random access signaling, connected mode signaling, etc.) between base station 105-a and UE 115-a. Thus, repeater 205-a can monitor control channel 210 (e.g., PDCCH) to look for control information 215 from base station 105-a in order to perform (e.g., configure) relay duties (e.g., amplification and forwarding operations).

[0120] In some cases, the wireless communication system 200 can support various techniques for SSB communication via repeater 205-a. For example, base station 105-a can initially beam sweep the SSB, and repeater 205-a can forward the SSB signal to UE 115-a (e.g., repeater 205-a can monitor and receive signal 220, and can transmit the forwarded signal 225 to UE 115-a). Additionally, according to the techniques described herein, the wireless communication system 200 can support triggering of various repeater 205-a configurations based on SSB (e.g., such as powering up and down the control interface 235 of repeater 205-a).

[0121] Repeater 205-a can operate in a low power state to save power. In some cases, base station 105-a may want to wake up repeater 205-a (e.g., to cause repeater 205-a to monitor control channel 210, or to monitor control channel 210 more frequently, and be able to receive control information 215 from base station 105-a). In some cases, the base station may want to wake up repeater 205-a even if UE 115-a is not attached. Thus, base station 105-a can trigger repeater 205-a configuration (e.g., can trigger repeater 205-a to power the control interface) based on periodic downlink signaling (e.g., such as transmit power boost via signal 220) that repeater 205-a is configured to monitor. That is, the periodic signal 220 (e.g., SSB) can be periodic in nature and can be transmitted by base station 105-a regardless of whether UE 115-a is attached to base station 105-a. Such signals can be used to trigger the configuration of repeater 205-a as discussed herein.

[0122] To achieve direct control of power savings (e.g., to enable operation of repeater 205-a in a low-power state where control channel 210 may be monitored infrequently or not at all), base station 105-a may employ a trigger signal (e.g., in an SSB time slot) to enable the repeater 205-a to transition out of the power-saving state. That is, base station 105-a may indicate to repeater 205-a a control interface trigger configuration such that the repeater 205-a can operate control interface 235 in the low-power state. In the low-power state, repeater 205-a may still monitor periodic signal 220 in a configured time slot (e.g., repeater 205-a may monitor the SSB in a configured SSB time slot via analog interface 230, but may monitor control channel 210 infrequently or may not monitor control channel 210 to achieve power consumption reduction). According to the techniques described herein, repeater 205-a may measure one or more energy levels during a configured monitoring time slot (e.g., during an SSB time slot). The repeater 205-a may then compare the one or more measured energy levels with power threshold information of the control interface trigger configuration to determine whether to remain in the low-power state (e.g., in a case where one or more energy levels do not exceed the power threshold indicated by the control interface trigger configuration or do not match the power profile indicated by the control interface trigger configuration) or to power up control interface 235 to monitor control channel 210 (e.g., in a case where one or more energy levels exceed the power threshold indicated by the control interface trigger configuration or match the power profile indicated by the control interface trigger configuration).

[0123] For example, the trigger signal (e.g., periodic signal 220) may exhibit a predetermined power profile that is different from a normal or default SSB. As an example, a normal or default SSB may refer to an SSB having an almost constant power envelope in an SSB time slot (e.g., where the constant power envelope may be set by the network, indicated to the repeater in an initial control interface trigger configuration, etc.). One option for configuring the trigger signal is to use the same waveform as the normal SSB, but the SSB may be transmitted at a different power level (e.g., with a difference of up to, for example, at least 3 decibels (dB) from the default SSB). Another option for configuring the trigger signal is that the power may vary in the SSB time slot according to a certain energy-time variation pattern (e.g., where the trigger signal may be an SSB having time-varying energy according to a certain time variation pattern or power profile indicated by the control interface trigger configuration). For example, the power in the first half of the SSB time slot may be different from the power in the second half of the SSB time slot, where the power difference may be at least 3 dB.

[0124] Initially, the repeater 205-a may turn off the control interface 235 or may monitor the control channel 210 by operating the control interface 235 in a slow rate or power saving state (e.g., where the control channel is monitored according to a long monitoring periodicity relative to the full power state, in which the repeater 205-a actively monitors the control channel 210). In this low power state, the repeater 205-a may turn on the SSB forwarding module and the energy measurement module according to a set of predetermined time intervals (e.g., in the SSB time slot or other time intervals configured for periodic signaling from the base station 105-a). If a power threshold above a predetermined power profile or the default SSB power envelope is detected in the SSB time slot, the repeater 205-a may turn on the control interface 235 and may monitor additional control information 215 from the base station 105-a. If no control information 215 is received from the base station 105-a during the time duration in which the repeater 205-a is configured to power the control interface 235 after detecting the triggering SSB, the repeater 205-a may turn off the control interface 235 (e.g., and switch back to the low power state and monitor the pre-configured SSB time slot).

[0125] The repeater 205 may include various hardware combinations (e.g., based on manufacturing cost considerations, repeater functionality considerations, etc.), and may employ one or several techniques to identify the control interface 235 configuration. For example, the repeater 205 may include an analog interface 230 and a control interface 235. The analog interface 230 may refer to various components or circuitry for performing analog processing, as described in more detail herein. Similarly, the control interface 235 may refer to various components or circuitry for performing digital processing, as described in more detail herein.

[0126] In some examples, the repeater 205-a may include an analog interface 230 and thus may receive the signal 220, amplify the signal 220, and transmit the forwarded signal 225 (e.g., the amplified and forwarded signal 220). Additionally, the repeater 205-a may include a control interface 235 and thus may process the control information 215 received on the control channel 210. The repeater 205-a may thus be equipped with an analog interface 230 and a control interface 235.

[0127] Examples of the components of the repeater 205 and the operations of the repeater 205 are in Figures 8 to 11is described in more detail in the example of. Additionally, the circuitry of repeater 205 can be configured with other layouts. The analog interface 230 can include or refer to analog or RF circuitry, various components that can be used within the signal processing chain at repeater 205, and so on. For example, the analog interface 230 can include or refer to analog or RF circuitry, phase shifters, mixers, received signal strength indicator (RSSI) components, LNAs, filters, PAs, A / D converters, and / or D / A converters, or combinations thereof. In some cases, the analog interface 230 can support the analog processing described herein. For example, the analog interface 230 (e.g., an LNA) can receive a signal (e.g., signal 220), amplify the signal, and forward (e.g., transmit the forwarded signal 225) the signal to UE 115-a. Additionally, the analog interface 230 can measure the energy of a signal (e.g., signal 220) during one or more preconfigured time slots.

[0128] The control interface 235 can include or refer to digital circuitry, various components that can be used within the signal processing chain at repeater 205, and so on. For example, the control interface 235 can include an A / D converter and can convert the filtered signal into a digital filtered signal, which can be provided to the digital processing and control circuitry. The digital processing and control circuitry can perform digital processing (such as digital filtering, demodulation, and decoding, channel estimation, carrier tracking, or combinations thereof) on the received filtered digital signal to output a processed digital signal. In some cases, the control interface 235 can support the digital processing described herein. For example, the control interface 235 can process a signal (e.g., control information 215) during one or more preconfigured time slots (e.g., of control channel 210). In some cases, the control interface 235 can be referred to herein as a digital interface.

[0129] Figure 3 An example of a transmit power diagram 300 that supports power savings for an intelligent repeater based on a trigger signal in accordance with one or more aspects of the present disclosure is illustrated. In some examples, the transmit power diagram 300 can implement aspects of wireless communication system 100 and wireless communication system 200.

[0130] The transmit power diagram 300 can illustrate an example of the SSB 305 and the corresponding power profile 310. For example, the SSB 305 is illustrated as conveying the PSS, SSS, and PBCH via time and frequency resources. In this example, the SSB 305 can include 20 resource blocks (RBs) in the frequency domain and 4 symbols in the time domain. As discussed herein, the SSB 305 can be modified (e.g., power boosted) by a base station to trigger a wireless repeater configuration (e.g., to trigger the wireless repeater to power a control interface). In some cases, the SSB 305 can be the same waveform as a normal or default SSB, but with a different power envelope or with a different power profile. In Figure 3 the example, the SSB 305 can be associated with the power profile 310. The power profile 310 can illustrate an example in which the first symbol (‘symbol 1’) is power boosted relative to the remaining symbols in the SSB time slot (e.g., relative to ‘symbol 2’, ‘symbol 3’, and ‘symbol 4’). For example, the repeater can measure one or more energy levels across the SSB time slot, and can measure the average energy level ‘P1’ across a first set of symbols (e.g., across ‘symbol 1’) and can measure the average energy level ‘P0’ across a second set of symbols (e.g., across ‘symbol 2’, ‘symbol 3’, and ‘symbol 4’). In a case where the ratio of P1 to P0 matches the power profile indicated by a control interface trigger configuration, the wireless repeater can power the control interface, as described herein. For example, in some cases, P1 can differ from P0 by 3 - 5 dB, which can trigger the powering of the control interface according to the power threshold information indicated by the control interface trigger configuration.

[0131] In some cases, the SSB 305 can alternatively be power boosted to a constant power envelope across four symbols. In such cases, the power threshold information included in the control interface trigger configuration can indicate a certain constant power envelope above a constant threshold (e.g., in the case where the wireless repeater measures the average energy across the SSB time slot (e.g., or the average energy across four SSB symbols)), and the wireless repeater can power the control interface. In other cases, other power profiles (e.g., other energy - time variation patterns as a supplement or replacement to the power profile 310) can be used for wireless repeater configuration triggering. As discussed herein, in some cases, the SSB 305 can not be modified in content, because the wireless repeater can use an analog interface to measure the energy of the SSB 305, amplify and forward the SSB 305, etc. without having to decode the SSB 305.

[0132] Figure 3The examples are provided for illustrative purposes only. It is contemplated that other periodic signals, other power profiles, other power envelopes, etc. may be considered without departing from the scope of the present disclosure. For example, a base station may configure any power threshold or power profile for any periodic signal (e.g., where the power threshold information may refer to any constant power threshold, any energy-time variation pattern, etc.). Additionally, such power threshold information may be configured to configure any state of the wireless repeater (e.g., such as control interface power supply state, analog interface power supply state, forwarding state, amplification state, etc.). Thus, the wireless repeater may perform energy measurements across configured time slots and may modify various configurations of the wireless repeater based on a certain power threshold information being met according to various trigger configurations (e.g., and may not be limited to control interface trigger configurations).

[0133] Figure 4 An example of a process flow 400 that supports power savings of an intelligent repeater based on a trigger signal in accordance with one or more aspects of the present disclosure is illustrated. In some examples, the process flow 400 may implement aspects of the wireless communication system 100, the wireless communication system 200, and the transmit power diagram 300. The process flow 400 includes: a base station 105-b, which may be an example of the base station and network device described with reference to Figure 1 and 2 ; a repeater 205-b, which may be an example of the repeater (e.g., a wireless repeater) described with reference to Figure 1 and 2 ; and a UE 115-b, which may be an example of the UE described with reference to Figure 1 and 2 . The process flow 400 includes functions and communications implemented by the base station 105-b, the repeater 205-b, and the UE 115-b in the context of repeater management (e.g., for power savings at the repeater).

[0134] In the following description of the process flow 400, the operations between the base station 105-b, the repeater 205-b, and the UE 115-b may be transmitted in an order different from the order shown, or these operations may be performed in a different order or at different times. Certain operations may also be excluded from the process flow 400, or other operations may be added to the process flow 400. It should be understood that although the base station 105-b, the repeater 205-b, and the UE 115-b are shown as performing several operations of the process flow 400, any wireless device may perform the operations shown.

[0135] At 405, base station 105-b may transmit a control interface trigger configuration to repeater 205-b. The control interface trigger configuration may include power threshold information for powering the control interface of repeater 205-b. For example, the power threshold information may include power thresholds for one or more energy level measurements, power profiles for one or more energy level measurements over a configured period (e.g., the period of a periodic signal configured to be transmitted at 420), or both. The power threshold for one or more energy level measurements may include a constant power envelope over the configured period (e.g., the power threshold for one or more energy level measurements may refer to the threshold at which repeater 205-b identifies a power boost (and thus a control interface trigger) from base station 105-b). The power profile over the configured period may include an energy-time variation pattern over the configured period.

[0136] At 410, base station 105-b may determine one or more transmit power levels of a periodic signal within a configured period based on the configuration of repeater 205-b and the control interface trigger configuration transmitted at 405. For example, base station 105-b may determine whether to send new control information to repeater 205-b at least in part based on the configuration of repeater 205-b (e.g., based on the configuration of repeater 205-b, the base station may determine whether the current state of the repeater is appropriate based on whether to send new control information to repeater 205-b). Base station 105-b may then determine whether to trigger the power supply to the control interface of the wireless repeater at least in part based on determining whether to send new control information to the wireless repeater, and may determine one or more transmit power levels based on whether base station 105-b will trigger the configuration of repeater 205-b. That is, one or more transmit power levels for the periodic signal may be determined based on base station 105-b determining whether to trigger the power supply to the control interface of repeater 205-b.

[0137] In some cases, determining one or more transmit power levels for a periodic signal may refer to boosting at least one of the one or more transmit power levels by a difference (e.g., 3-5 dB) compared to the remaining power levels of the one or more transmit power levels (e.g., where the power threshold information indicated at 405 may include this difference). For example, as described herein, base station 105-b may boost the first symbol of the SSB (e.g., by 3-5 dB) relative to the remaining symbols of the SSB, where the control interface trigger configuration may indicate a power profile that indicates an energy-time variation pattern across the symbols of the SSB.

[0138] At 415, repeater 205-b may monitor a periodic signal and may detect energy (e.g., measure one or more energy levels) during a period configured for the periodic signal. In some cases, measuring one or more energy levels may be based on a control interface trigger configuration received at 405. For example, in cases where the control interface trigger configuration indicates a power threshold or a power envelope, repeater 205-b may measure an average energy level across the configured period. In cases where the average energy level exceeds a certain threshold (e.g., is 2-5 dB higher than a certain default power level associated with the periodic signal), at 435 repeater 205-b may power the control interface (e.g., or cause the control interface to transition to a fast state). In other examples where the control interface trigger configuration indicates a power profile, repeater 205-b may perform two or more energy measurements (e.g., a first measurement across the first symbol of an SSB and a second average energy measurement across the remaining symbols of the SSB). In such cases, at 435, repeater 205-b may compare the two or more energy measurements to the power profile (e.g., and in cases where the two or more energy measurements match the power profile, repeater 205-b may power the control interface (e.g., or cause the control interface to transition to a fast state)).

[0139] As discussed herein, at 430, repeater 205-b may compare one or more energy measurements (e.g., performed at 415) to power threshold information included in a control interface trigger configuration. In cases where the control interface trigger configuration indicates a power profile, repeater 205-b may determine a ratio between a first measured energy level among one or more measured energy levels and a second measured energy level among one or more measured energy levels, where the first measured energy level includes a first average power level of a first set of symbols of the periodic signal (e.g., of the first symbol of an SSB) and the second measured energy level includes a second average power level of a second set of symbols of the periodic signal (e.g., of symbols 2-4 of an SSB). Repeater 205-b may then determine that the one or more measured energy levels match the power profile at least in part based on the ratio. For example, the power profile may indicate a pattern of power variation across the first set of symbols of the periodic signal and the second set of symbols of the periodic signal, and repeater 205-b may determine the ratio (e.g., may determine that the average energy of the first symbol is boosted 3-5 dB relative to the average energy of the remaining three symbols). In cases where the power profile indicates such power variation, repeater 205-b may determine that the control interface configuration has been triggered (e.g., the repeater is to power the control interface for a certain first time duration).

[0140] At 435, the repeater 205-b may configure the control interface based on the comparison at 430 (e.g., based on whether the periodic signal at 420 triggers power supply to the control interface, and configure according to the control interface trigger). In a case where one or more energy levels exceed the power threshold indicated by the control interface trigger configuration or match the power profile indicated by the control interface trigger configuration, at 435 the repeater 205-b may supply power to the control interface for a first time duration (e.g., where the first time duration may be pre-configured or may be configured by the control interface trigger configuration received at 405). In a case where one or more energy levels do not exceed the power threshold indicated by the control interface trigger configuration or do not match the power profile indicated by the control interface trigger configuration, the repeater 205-b may transition to a low power state (e.g., power down the control interface, keep the control interface in a low power state, etc.).

[0141] At 440, in a case where the repeater 205-b supplies power to the control interface for a first time duration (e.g., in a case where one or more energy levels exceed the power threshold indicated by the control interface trigger configuration or match the power profile indicated by the control interface trigger configuration), at 440 the repeater 205-b may monitor the control channel based on the power supply to the control interface. For example, at 440, the repeater 205-b may monitor the control channel for a first time duration, where the first time duration may be a configured duration or timer associated with the power supply to the control interface. In some cases, the first time duration may be indicated by the control interface trigger configuration, pre-configured by the wireless communication system, etc.

[0142] As discussed herein, the repeater 205-b may transition back to the low power state in a case where additional control information is not received from the base station 105-b before the expiration of the first time duration (e.g., in a case where control information is not received at 445). Alternatively, in some cases, at 445, the repeater 205-b may receive additional control information from the base station 105-b. In such cases, at 450, the base station 105-b may configure the repeater forwarding circuitry, configure the control interface, or both based on the control information received at 445. For example, in some cases, the control information at 445 may include a new repeater configuration for subsequent transmissions, and the repeater 205-b may configure the repeater forwarding circuitry according to the new repeater configuration. In other cases, the control information at 445 may include a control command for configuring the control interface of the repeater 205-b, and the repeater 205-b may configure the control interface according to the control command. For example, the control information at 445 may include one or more control commands for the control interface of the repeater 205-b, such as a low power command, a fast command, an indication of monitoring periodicity, etc.

[0143] Figure 5 FIG. 500 is a block diagram of a device 505 that supports power savings for an intelligent repeater based on a trigger signal, in accordance with one or more aspects of the present disclosure. The device 505 may be an example of aspects of a network device 105 or a base station 105 as described herein. The device 505 may include a receiver 510, a communication manager 515, and a transmitter 520. The device 505 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0144] The receiver 510 may provide means for receiving information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to power savings for an intelligent repeater based on a trigger signal, etc.). The information may be passed to other components of the device 505. The receiver 510 may be an example of aspects of the transceiver 820 described in reference Figure 8 The receiver 510 may utilize a single antenna or an antenna array.

[0145] In accordance with examples disclosed herein, the communication manager 515 may support wireless communication. The communication manager 515 may provide means for transmitting a control interface trigger configuration to a wireless repeater, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The communication manager 515 may provide means for determining one or more transmit power levels for periodic signals during a configured period based on the configuration of the wireless repeater and the control interface trigger configuration; and means for transmitting the periodic signals during the configured period based on the one or more determined transmit power levels. The communication manager 515 may be an example of aspects of the communication manager 810 described herein.

[0146] The communication manager 515 may be an example of means for performing various aspects of managing an intelligent repeater as described herein. The communication manager 515 or its subcomponents may be implemented in hardware (e.g., in communication management circuitry). The circuitry may include a processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0147] In another example, the communication manager 515 or its subcomponents may be implemented in code executed by a processor (e.g., as communication management software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 515 or its subcomponents may be performed by a general purpose processor, a DSP, an ASIC, and an FPGA or other programmable logic device.

[0148] In some examples, the communication manager 515 may be configured to perform various operations (e.g., receive, determine, transmit) using the receiver 510, the transmitter 520, or both, or otherwise in cooperation with the receiver 510, the transmitter 520, or both.

[0149] The communication manager 515 or its subcomponents may be physically located at various positions, including being distributed such that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, in accordance with various aspects of the present disclosure, the communication manager 515 or its subcomponents may be separate and distinct components. In some examples, in accordance with various aspects of the present disclosure, the communication manager 515 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or combinations thereof.

[0150] The transmitter 520 may provide means for transmitting signals generated by other components of the device 505. In some examples, the transmitter 520 may be co-located with the receiver 510 in a transceiver module. For example, the transmitter 520 may be an example of aspects of the transceiver 820 described with reference to Figure 8 The transmitter 520 may utilize a single antenna or an antenna array.

[0151] Figure 6 Block diagram 600 of a device 605 supporting power savings for a trigger signal-based intelligent repeater in accordance with one or more aspects of the present disclosure is shown. The device 605 may be an example of aspects of the device 505, the network device 105, or the base station 105 described herein. The device 605 may include a receiver 610, a communication manager 615, and a transmitter 635. The device 605 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0152] The receiver 610 may provide means for receiving information, such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to power savings for a trigger signal-based intelligent repeater, etc.). The information may be passed to other components of the device 605. The receiver 610 may be an example of aspects of the transceiver 820 described with reference to Figure 8 The receiver 610 may utilize a single antenna or an antenna array.

[0153] The communication manager 615 or its components can be examples of apparatus for performing various aspects of managing an intelligent repeater as described herein. The communication manager 615 can include a repeater control interface manager 620, a transmit power manager 625, and a periodic signal manager 630. The communication manager 615 can be an example of aspects of the communication manager 810 described herein. The communication manager 615 can be an example of the communication manager 515 as described herein. In some examples, the communication manager 215 can be configured to perform various operations (e.g., receive, monitor, transmit) using one or both of the receiver 610 or the transmitter 635, or otherwise in cooperation with one or both of the receiver 610 or the transmitter 635.

[0154] The repeater control interface manager 620 can provide or support apparatus for transmitting a control interface trigger configuration to a wireless repeater, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The transmit power manager 625 can provide or support apparatus for determining one or more transmit power levels for a periodic signal over a configured period based on the configuration of the wireless repeater and the control interface trigger configuration. The periodic signal manager 630 can provide or support apparatus for transmitting a periodic signal during the configured period based on one or more determined transmit power levels.

[0155] The transmitter 635 can provide or support apparatus for transmitting signals generated by other components of the device 605. In some examples, the transmitter 635 can be co-located with the receiver 610 in a transceiver module. For example, the transmitter 635 can be an example of aspects of the transceiver 820 described with reference to Figure 8 The transmitter 635 can utilize a single antenna or an antenna array.

[0156] Figure 7 Block diagram 700 shows a communication manager 705 that supports power savings for an intelligent repeater based on a trigger signal, in accordance with one or more aspects of the present disclosure. The communication manager 705 can be an example of aspects of the communication manager 515, the communication manager 615, the communication manager 810, or all of these, as described herein. The communication manager 705 or its various components can be examples of apparatus for performing various aspects of managing an intelligent repeater as described herein. For example, the communication manager 705 can include a repeater control interface manager 710, a transmit power manager 715, a periodic signal manager 720, and a repeater control information manager 725. Each of these modules can communicate directly or indirectly with each other (e.g., via one or more buses).

[0157] The repeater control interface manager 710 may provide or support means for transmitting a control interface trigger configuration to a wireless repeater, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. In some examples, the repeater control interface manager 710 may provide or support means for determining to trigger powering of the control interface of the wireless repeater based on new control information, where at least one of one or more transmit power levels is determined based on determining to trigger powering of the control interface of the wireless repeater.

[0158] The transmit power manager 715 may provide or support means for determining one or more transmit power levels for a periodic signal during a configured period based on the configuration of the wireless repeater and the control interface trigger configuration. In some examples, the transmit power manager 715 may provide or support means for boosting at least one of one or more transmit power levels for a periodic signal. In some examples, the transmit power manager 715 may provide or support means for boosting the difference of at least one of one or more transmit power levels compared to the remaining transmit power levels of one or more transmit power levels, where the power threshold information includes the difference.

[0159] In some cases, one or more transmit power levels for a periodic signal during a configured period are determined based on determining whether to trigger powering of the control interface of the wireless repeater and the power threshold information. In some cases, the boost is based on the power threshold information. In some cases, the power threshold information includes a power threshold for one or more transmit power levels, a power profile for the configured period, or both. In some cases, the power threshold for one or more transmit power levels includes a constant power envelope for the configured period. In some cases, the power profile for the configured period includes an energy-time variation pattern across the configured period.

[0160] The periodic signal manager 720 may provide or support means for transmitting a periodic signal during a configured period based on one or more determined transmit power levels. In some cases, the periodic signal includes a synchronization signal block and the configured period includes four symbols of the synchronization signal block.

[0161] The repeater control information manager 725 may provide or support apparatus for determining whether to send new control information to a wireless repeater based on a configuration of the wireless repeater. In some examples, the repeater control information manager 725 may provide or support apparatus for determining whether to trigger powering of a control interface of a wireless repeater based on determining whether to send new control information to the wireless repeater. In some examples, the repeater control information manager 725 may provide or support apparatus for determining new control information for a wireless repeater. In some examples, the repeater control information manager 725 may provide or support apparatus for transmitting new control information to a wireless repeater before expiration of a first time duration, where a control interface trigger configuration indicates the first time duration.

[0162] Figure 8 FIG. shows a diagram of a system 800 including a device 805 that supports power savings of an intelligent repeater based on a trigger signal, in accordance with one or more aspects of the present disclosure. The device 805 may be an example of a device 505, a device 605, a network device 105, or a base station 105 as described herein or include components of such devices. The device 805 may communicate wirelessly with one or more base stations 105, UEs 115, or any combination thereof. The device 805 may include components for two-way voice and data communication, including components for transmitting and receiving communications, including a communication manager 810, a network communication manager 815, a transceiver 820, an antenna 825, a memory 830, a processor 840, and an inter-station communication manager 845. These components may be in electronic communication via one or more buses (e.g., bus 850).

[0163] The communication manager 810 or its various components may be an example of apparatus for performing various aspects of managing an intelligent repeater as described herein. For example, the communication manager 810 may transmit a control interface trigger configuration to a wireless repeater, where the control interface trigger configuration includes power threshold information for powering a control interface of the wireless repeater; determine one or more transmit power levels for periodic signals within a configured period based on a configuration of the wireless repeater and the control interface trigger configuration; and transmit a periodic signal during the configured period based on the one or more determined transmit power levels.

[0164] In some examples, the communication manager 810 may be configured to perform various operations (e.g., receive, determine, transmit) using one or both of the transceiver 820 or one or more antennas 825, or otherwise in cooperation with one or both of the transceiver 820 or one or more antennas 825. Although the communication manager 810 is illustrated as a separate component, in some examples, one or more of the functions described with reference to the communication manager 810 may be supported or performed by the processor 840, the memory 830, the code 835, or any combination thereof. For example, the code 835 may include instructions executable by the processor 840 to cause the device 805 to perform various aspects of managing the intelligent repeater as described herein, or the processor 840 and the memory 830 may otherwise be configured to perform or support such operations.

[0165] The network communication manager 815 may manage communication with the core network (e.g., via one or more wired backhaul links). For example, the network communication manager 815 may manage the delivery of data communication for client devices such as one or more UEs 115.

[0166] In some cases, the wireless device may include a single antenna 825. However, in some cases, the device may have more than one antenna 825, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 820 may communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 820 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 820 may also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from one or more antennas. The transceiver 820 may be an example of the transmitter 520, the transmitter 635, the receiver 510, the receiver 610, or any combination thereof as described herein.

[0167] The memory 830 may include RAM, ROM, or a combination thereof. The memory 830 may store computer-readable code or software 835 including instructions that, when executed by a processor (e.g., the processor 840), cause the device to perform the various functions described herein. In some cases, the memory 830 may particularly include a basic input / output system (BIOS) that may control basic hardware or software operations, such as interactions with peripheral components or devices.

[0168] The processor 840 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, central processing units (CPUs), microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, the processor 840 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into the processor 840. The processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 830) to cause the device 805 to perform various functions (e.g., support various functions or tasks for power saving of an intelligent repeater based on a trigger signal).

[0169] The inter-station communication manager 845 may manage communication with other base stations 105 and may include a controller or scheduler for collaboratively controlling communication with the UE 115 with other base stations 105. For example, the inter-station communication manager 845 may coordinate the scheduling of transmissions to the UE 115 for various interference mitigation techniques (such as beamforming or joint transmission). In some examples, the inter-station communication manager 845 may provide an X2 interface within the LTE / LTE-A wireless communication network technology to provide communication between the base stations 105.

[0170] The software 835 may include instructions for implementing aspects of the present disclosure, including instructions for supporting wireless communication. The software 835 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the software 835 may not be directly executed by the processor 840, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0171] Figure 9 Block diagram 900 of a device 905 supporting power saving of an intelligent repeater based on a trigger signal in accordance with one or more aspects of the present disclosure is shown. The device 905 may be an example of aspects of the repeater 140, the repeater 205, or a wireless repeater as described herein. The device 905 may include a receiver 910, a communication manager 915, and a transmitter 920. The device 905 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0172] The receiver 910 may receive information, such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to power saving of an intelligent repeater based on a trigger signal, etc.). The information may be passed to other components of the device 905. The receiver 910 may be an example of aspects of the transceiver 1220 described in Figure 12 . The receiver 910 may utilize a single antenna or an antenna array.

[0173] Communication manager 915 may receive a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. Communication manager 915 may receive a periodic signal from the base station during a configured period, and measure one or more energy levels associated with the received periodic signal across the configured period based on the received control interface trigger configuration. Communication manager 915 may configure the control interface based on the one or more measured energy levels and the control interface trigger configuration. Communication manager 915 may be an example of aspects of communication manager 1210 described herein.

[0174] Communication manager 915 or its sub-components may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of communication manager 915 or its sub-components may be performed by a general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

[0175] Communication manager 915 or its sub-components may be physically located at various locations, including being distributed such that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to aspects of this disclosure, communication manager 915 or its sub-components may be separate and distinct components. In some examples, according to aspects of this disclosure, communication manager 915 or its sub-components may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or combinations thereof.

[0176] Transmitter 920 may transmit signals generated by other components of device 905. In some examples, transmitter 920 may be co-located with receiver 910 in a transceiver module. For example, transmitter 920 may be an example of aspects of transceiver 1220 described with reference to Figure 12 Transmitter 920 may utilize a single antenna or an antenna array.

[0177] Figure 10FIG. 1000 is a block diagram of a device 1005 that supports power savings for an intelligent repeater based on a trigger signal in accordance with one or more aspects of the present disclosure. The device 1005 may be an example of aspects of a device 905, a repeater 140, a repeater 205, or a wireless repeater as described herein. The device 1005 may include a receiver 1010, a communication manager 1015, and a transmitter 1035. The device 1005 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0178] The receiver 1010 may provide or support means for receiving information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to power savings of an intelligent repeater based on a trigger signal, etc.). The information may be passed to other components of the device 1005. The receiver 1010 may be an example of aspects of the transceiver 1220 described in reference Figure 12 The receiver 1010 may utilize a single antenna or an antenna array.

[0179] The communication manager 1015 may be an example of aspects of the communication manager 915 as described herein. The communication manager 1015 may include a control interface manager 1020, a monitoring manager 1025, and an energy measurement manager 1030. The communication manager 1015 may be an example of aspects of the communication manager 1210 described in this document.

[0180] The control interface manager 1020 may provide or support means for receiving a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering a control interface of a wireless repeater. The monitoring manager 1025 may provide or support means for receiving a periodic signal from the base station during a configured period. The energy measurement manager 1030 may provide or support means for measuring one or more energy levels associated with the received periodic signal across the configured period based on the received control interface trigger configuration. The control interface manager 1020 may provide or support means for configuring the control interface based on one or more measured energy levels and the control interface trigger configuration.

[0181] The transmitter 1035 may provide or support means for transmitting signals generated by other components of the device 1005. In some examples, the transmitter 1035 may be co-located with the receiver 1010 in a transceiver module. For example, the transmitter 1035 may be an example of aspects of the transceiver 1220 described in reference Figure 12 The transmitter 1035 may utilize a single antenna or an antenna array.

[0182] Figure 11FIG. 1100 is a block diagram of a communication manager 1105 that supports power savings for an intelligent repeater based on a trigger signal, in accordance with one or more aspects of the present disclosure. The communication manager 1105 may be an example of aspects of the communication manager 915, communication manager 1015, or communication manager 1210 described herein. The communication manager 1105 may include a control interface manager 1110, a monitoring manager 1115, an energy measurement manager 1120, a control channel manager 1125, and a forwarding manager 1130. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0183] The control interface manager 1110 may provide or support means for receiving a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering a control interface of a wireless repeater. In some examples, the control interface manager 1110 may provide or support means for configuring the control interface based on one or more measured energy levels and the control interface trigger configuration. In some examples, the control interface manager 1110 may provide or support means for powering the control interface for a first time duration based on one or more measured energy levels exceeding a power threshold. In some examples, the control interface manager 1110 may provide or support means for receiving control information from the base station via a monitoring control channel before a first time duration expires, where the control information includes one or more commands for the control interface.

[0184] In some examples, the control interface manager 1110 may provide or support means for configuring the control interface based on the one or more commands. In some examples, the control interface manager 1110 may provide or support means for powering down the control interface upon expiration of the first time duration. In some examples, the control interface manager 1110 may provide or support means for powering the control interface for a first time duration based on one or more measured energy levels matching a power profile. In some examples, the control interface manager 1110 may provide or support means for transitioning to a low power state based on one or more measured energy levels being below a power threshold. In some examples, the control interface manager 1110 may provide or support means for transitioning to a low power state based on one or more measured energy levels being different from a power profile. In some examples, the control interface manager 1110 may provide or support means for powering the control interface for a first time duration or transitioning to a low power state based on a difference between a first average energy level and a second average energy level. In some cases, the power threshold information includes the difference.

[0185] The monitoring manager 1115 may provide or support means for receiving a periodic signal from a base station during a configured period. In some cases, the periodic signal includes a synchronization signal block and the configured period includes four symbols of the synchronization signal block. The energy measurement manager 1120 may provide or support means for measuring one or more energy levels associated with the received periodic signal across the configured period based on a received control interface trigger configuration. In some examples, the energy measurement manager 1120 may provide or support means for comparing one or more measured energy levels with power threshold information, where the power threshold information includes power thresholds for one or more measured energy levels, a power profile for the configured period, or both.

[0186] In some examples, the energy measurement manager 1120 may provide or support means for determining a ratio between a first measured energy level among one or more measured energy levels and a second measured energy level among one or more measured energy levels, where the first measured energy level includes a first average power level of a first set of symbols of the periodic signal and the second measured energy level includes a second average power level of a second set of symbols of the periodic signal. In some examples, the energy measurement manager 1120 may provide or support means for determining that one or more measured energy levels match a power profile based on the ratio. In some examples, the energy measurement manager 1120 may compare the ratio with the power profile.

[0187] In some examples, the energy measurement manager 1120 may provide or support means for measuring a first average energy level of a first symbol of the received periodic signal across the configured period. In some examples, the energy measurement manager 1120 may provide or support means for measuring a second average energy level of one or more remaining symbols of the received periodic signal across the configured period. In some cases, the power profile includes a power variation pattern across a first set of symbols of the periodic signal and a second set of symbols of the periodic signal. In some cases, the power threshold for one or more measured energy levels includes a constant power envelope for the configured period. In some cases, the power profile for the configured period includes an energy-time variation pattern across the configured period.

[0188] The control channel manager 1125 may provide or support means for monitoring a control channel for a first time duration using the control interface based on powering the control interface. In some examples, the control channel manager 1125 may monitor the control channel for a first time duration using the control interface based on powering on the control interface. The forwarding manager 1130 may provide or support means for performing an amplification operation on the received periodic signal. In some examples, the forwarding manager 1130 may transmit the amplified periodic signal to a UE.

[0189] Figure 12 FIG. shows a diagram of a system 1200 including a device 1205 that supports power savings of an intelligent repeater based on a trigger signal, according to one or more aspects of the present disclosure. The device 1205 may be an example of the device 905, the device 1005, the repeater 140, the repeater 205, or a wireless repeater as described herein, or may include components of the above devices. The device 1205 may include components for two-way voice and data communication, which include components for transmitting and receiving communication, including a communication manager 1210, an I / O controller 1215, a transceiver 1220, an antenna 1225, a memory 1230, and a processor 1240. These components may be in electronic communication via one or more buses (e.g., bus 1245).

[0190] The communication manager 1210 may provide or support means for: receiving a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering a control interface of a wireless repeater; receiving a periodic signal from the base station during a configured period; measuring one or more energy levels associated with the received periodic signal across the configured period based on the received control interface trigger configuration; and configuring the control interface based on the one or more measured energy levels and the control interface trigger configuration.

[0191] The I / O controller 1215 may manage input and output signals of the device 1205. The I / O controller 1215 may also manage peripheral devices not integrated into the device 1205. In some cases, the I / O controller 1215 may represent a physical connection or port to an external peripheral device. In some cases, the I / O controller 1215 may utilize an operating system, such as or another known operating system. In other cases, the I / O controller 1215 may represent or interact with a modem, a keyboard, a mouse, a touch screen, or a similar device. In some cases, the I / O controller 1215 may be implemented as part of a processor. In some cases, a user may interact with the device 1205 via the I / O controller 1215 or via hardware components controlled by the I / O controller 1215.

[0192] In some cases, a wireless device may include a single antenna 1225. However, in some cases, the device may have more than one antenna 1225, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 1220 may communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1220 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1220 may also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from one or more antennas. The transceiver 820 may be an example of the transmitter 520, the transmitter 635, the receiver 510, the receiver 610, or any combination thereof as described herein.

[0193] The memory 1230 may include random access memory (RAM) and read-only memory (ROM). The memory 1230 may store computer-readable, computer-executable code or software 1235 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, the memory 1230 may specifically contain the BIOS, which may control basic hardware or software operations, such as interactions with peripheral components or devices.

[0194] The processor 1240 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, the processor 1240 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 1240. The processor 1240 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1230) to cause the device 1205 to perform various functions (e.g., functions or tasks supporting power savings of an intelligent repeater based on a trigger signal).

[0195] The software 1235 may include instructions for implementing aspects of the present disclosure, including instructions for supporting wireless communication. The software 1235 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, the software 1235 may not be directly executable by the processor 1240, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0196] Figure 13FIG. 1300 is a flow chart illustrating a method 1300 for supporting power savings of an intelligent repeater based on a trigger signal in accordance with one or more aspects of the present disclosure. Operations of method 1300 may be implemented by a device (such as, for example, a wireless repeater) or components thereof as described herein. For example, operations of method 1300 may be performed by a communication manager as described with reference to Figures 9 to 12 In some examples, the device may execute an instruction set to control functional elements of the device to perform the functions described below. Additionally or alternatively, the device may use dedicated hardware to perform aspects of the functions described below.

[0197] At 1305, the device may receive a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering a control interface of a wireless device. The operation of 1305 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1305 may be performed by a control interface manager as described with reference to Figures 9 to 12 In some examples, aspects of the operation of 1305 may be performed by a control interface manager as described with reference to

[0198] At 1310, the device may receive a periodic signal from the base station during a configured period. The operation of 1310 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1310 may be performed by a monitoring manager as described with reference to Figures 9 to 12 In some examples, aspects of the operation of 1310 may be performed by a monitoring manager as described with reference to

[0199] At 1315, the device may measure one or more energy levels associated with the received periodic signal across the configured period based on the received control interface trigger configuration. The operation of 1315 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1315 may be performed by an energy measurement manager as described with reference to Figures 9 to 12 In some examples, aspects of the operation of 1315 may be performed by an energy measurement manager as described with reference to

[0200] At 1320, the device may configure the control interface based on the one or more measured energy levels and the control interface trigger configuration. The operation of 1320 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1320 may be performed by a control interface manager as described with reference to Figures 9 to 12 In some examples, aspects of the operation of 1320 may be performed by a control interface manager as described with reference to

[0201] Figure 14 FIG. 1400 is a flow chart illustrating a method 1400 for supporting power savings of an intelligent repeater based on a trigger signal in accordance with one or more aspects of the present disclosure. Operations of method 1400 may be implemented by a device or components thereof as described herein. For example, operations of method 1400 may be performed by a device as described with reference to Figures 9 to 12The described communication manager performs. In some examples, the device may execute an instruction set to control the functional elements of the device to perform the following functions. Additionally or alternatively, the device may use dedicated hardware to perform aspects of the following functions.

[0202] At 1405, the device may receive a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The operation of 1405 may be performed according to the methods described herein. In some examples, aspects of the operation of 1405 may be performed by a control interface manager as described with reference to Figures 9 to 12 the described.

[0203] At 1410, the device may receive a periodic signal from the base station during a configured period. The operation of 1410 may be performed according to the methods described herein. In some examples, aspects of the operation of 1410 may be performed by a monitoring manager as referenced Figures 9 to 12 the described.

[0204] At 1415, the device may measure one or more energy levels associated with the received periodic signal across the configured period based on the received control interface trigger configuration. The operation of 1415 may be performed according to the methods described herein. In some examples, aspects of the operation of 1415 may be performed by an energy measurement manager as described with reference to Figures 9 to 12 the described.

[0205] At 1420, the device may compare one or more measured energy levels with the power threshold information, where the power threshold information includes a power threshold for one or more measured energy levels, a power profile for the configured period, or both. The operation of 1420 may be performed according to the methods described herein. In some examples, aspects of the operation of 1420 may be performed by an energy measurement manager as described with reference to Figures 9 to 12 the described.

[0206] At 1425, the device may power the control interface for a first time duration based on one or more measured energy levels exceeding the power threshold. The operation of 1425 may be performed according to the methods described herein. In some examples, aspects of the operation of 1425 may be performed by a control interface manager as described with reference to Figures 9 to 12 the described.

[0207] Figure 15 A flowchart of a method 1500 for supporting power savings of an intelligent repeater based on a trigger signal in accordance with one or more aspects of the present disclosure is shown. The operations of method 1500 may be implemented by a device or its components as described herein. For example, the operations of method 1500 may be performed by a device as described with reference to Figures 9 to 12Performed by the described communication manager. In some examples, the device may execute an instruction set to control the functional elements of the device to perform the following functions. Additionally or alternatively, the device may use dedicated hardware to perform aspects of the following functions.

[0208] At 1505, the device may receive a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The operation of 1505 may be performed according to the methods described herein. In some examples, aspects of the operation of 1505 may be performed by a control interface manager as described with reference to Figures 9 to 12 The described control interface manager.

[0209] At 1510, the device may receive a periodic signal from the base station during a configured period. The operation of 1510 may be performed according to the methods described herein. In some examples, aspects of the operation of 1510 may be performed by a monitoring manager as described with reference to Figures 9 to 12 The described monitoring manager.

[0210] At 1515, the device may measure one or more energy levels associated with the received periodic signal across the configured period based on the received control interface trigger configuration. The operation of 1515 may be performed according to the methods described herein. In some examples, aspects of the operation of 1515 may be performed by an energy measurement manager as described with reference to Figures 9 to 12 The described energy measurement manager.

[0211] At 1520, the device may compare one or more measured energy levels with the power threshold information, where the power threshold information includes power thresholds for one or more measured energy levels, a power profile for the configured period, or both. The operation of 1520 may be performed according to the methods described herein. In some examples, aspects of the operation of 1520 may be performed by an energy measurement manager as described with reference to Figures 9 to 12 The described energy measurement manager.

[0212] At 1525, the device may power the control interface for a first time duration based on one or more measured energy levels matching the power profile. The operation of 1525 may be performed according to the methods described herein. In some examples, aspects of the operation of 1525 may be performed by a control interface manager as described with reference to Figures 9 to 12 The described control interface manager.

[0213] Figure 16 A flowchart illustrating a method 1600 for supporting power savings of an intelligent repeater based on a trigger signal according to one or more aspects of the present disclosure is shown. The operations of method 1600 may be implemented by a device or its components as described herein. For example, the operations of method 1600 may be performed by a device as described with reference to Figures 9 to 12be performed by the described communication manager. In some examples, the device may execute an instruction set to control the functional elements of the device to perform the following functions. Additionally or alternatively, the device may use dedicated hardware to perform aspects of the following functions.

[0214] At 1605, the device may receive a control interface trigger configuration from a base station, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The operation of 1605 may be performed according to the methods described herein. In some examples, aspects of the operation of 1605 may be performed by a control interface manager as referred to Figures 9 to 12 as described.

[0215] At 1610, the device may receive a periodic signal from a base station during a configured period. The operation of 1610 may be performed according to the methods described herein. In some examples, aspects of the operation of 1610 may be performed by a monitoring manager as referenced Figures 9 to 12 as described.

[0216] At 1615, the device may measure one or more energy levels associated with the received periodic signal across the configured period based on the received control interface trigger configuration. The operation of 1615 may be performed according to the methods described herein. In some examples, aspects of the operation of 1615 may be performed by an energy measurement manager as referred to Figures 9 to 12 as described.

[0217] At 1620, the device may determine a ratio between a first measured energy level among one or more measured energy levels and a second measured energy level among one or more measured energy levels, where the first measured energy level includes a first average power level of a first symbol set of the periodic signal and the second measured energy level includes a second average power level of a second symbol set of the periodic signal. The operation of 1620 may be performed according to the methods described herein. In some examples, aspects of the operation of 1620 may be performed by an energy measurement manager as referred to Figures 9 to 12 as described.

[0218] At 1625, the device may determine that one or more measured energy levels match a power profile based on the ratio. The operation of 1625 may be performed according to the methods described herein. In some examples, aspects of the operation of 1625 may be performed by an energy measurement manager as referred to Figures 9 to 12 as described.

[0219] At 1630, the device can power the control interface for a first time duration based on one or more measured energy levels matching the power profile. The operation of 1630 can be performed according to the methods described herein. In some examples, aspects of the operation of 1630 can be performed by a control interface manager as described with reference to Figures 9 to 12 as described.

[0220] Figure 17 FIG. 1700 is a flow diagram illustrating a method 1700 for supporting power savings of an intelligent repeater based on a trigger signal in accordance with one or more aspects of the present disclosure. The operations of method 1700 can be implemented by a base station 105 or its components as described herein. For example, the operations of method 1700 can be performed by a communication manager as described with reference to Figures 5 to 8 as described. In some examples, the base station can execute an instruction set to control functional elements of the base station to perform the following functions. Additionally or alternatively, the base station can use dedicated hardware to perform aspects of the following functions.

[0221] At 1705, the base station can transmit a control interface trigger configuration to the wireless repeater, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The operation of 1705 can be performed according to the methods described herein. In some examples, aspects of the operation of 1705 can be performed by a repeater control interface manager as described with reference to Figures 5 to 8 as described.

[0222] At 1710, the base station can determine one or more transmit power levels for periodic signals during a configured period based on the configuration of the wireless repeater and the control interface trigger configuration. The operation of 1710 can be performed according to the methods described herein. In some examples, aspects of the operation of 1710 can be performed by a transmit power manager as described with reference to Figures 5 to 8 as described.

[0223] At 1715, the base station can transmit periodic signals during the configured period based on one or more determined transmit power levels. The operation of 1715 can be performed according to the methods described herein. In some examples, aspects of the operation of 1715 can be performed by a periodic signal manager as described with reference to Figures 5 to 8 as described.

[0224] Figure 18 FIG. 1800 is a flow diagram illustrating a method 1800 for supporting power savings of an intelligent repeater based on a trigger signal in accordance with one or more aspects of the present disclosure. The operations of method 1800 can be implemented by a base station 105 or its components as described herein. For example, the operations of method 1800 can be performed by a communication manager as described with reference to Figures 5 to 8to be performed by the described communication manager. In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the following functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the following functions.

[0225] At 1805, the base station may transmit a control interface trigger configuration to the wireless repeater, where the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater. The operation at 1805 may be performed according to the methods described herein. In some examples, aspects of the operation at 1805 may be performed by a repeater control interface manager as described with reference to Figures 5 to 8 what is described.

[0226] At 1810, the base station may determine one or more transmit power levels for a periodic signal during a configured period based on the configuration of the wireless repeater and the control interface trigger configuration. The operation at 1810 may be performed according to the methods described herein. In some examples, aspects of the operation at 1810 may be performed by a transmit power manager as described with reference to Figures 5 to 8 what is described.

[0227] At 1815, the base station may transmit a periodic signal during the configured period based on one or more determined transmit power levels. The operation at 1815 may be performed according to the methods described herein. In some examples, aspects of the operation at 1815 may be performed by a periodic signal manager as described with reference to Figures 5 to 8 what is described.

[0228] At 1820, the base station may determine whether to send new control information to the wireless repeater based on the configuration of the wireless repeater. The operation at 1820 may be performed according to the methods described herein. In some examples, aspects of the operation at 1820 may be performed by a repeater control information manager as described with reference to Figures 5 to 8 what is described.

[0229] At 1825, the base station may determine whether to trigger the power supply to the control interface of the wireless repeater based on determining whether to send new control information to the wireless repeater. The operation at 1825 may be performed according to the methods described herein. In some examples, aspects of the operation at 1825 may be performed by a repeater control information manager as described with reference to Figures 5 to 8 what is described.

[0230] It should be noted that the methods described herein describe possible implementations, and the operations and steps may be rearranged or otherwise modified and other implementations are also possible. Additionally, aspects from two or more methods may be combined.

[0231] An overview of examples of the present invention is provided below:

[0232] Example 1: A method for wireless communication at a wireless repeater, comprising: receiving a control interface trigger configuration from a base station, wherein the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater; receiving a periodic signal from the base station during a configured period; measuring one or more energy levels associated with the received periodic signal across the configured period at least in part based on the received control interface trigger configuration; and configuring the control interface at least in part based on the one or more measured energy levels and the control interface trigger configuration.

[0233] Example 2: The method of Example 1, further comprising: comparing one or more measured energy levels with the power threshold information, wherein the power threshold information includes a power threshold for one or more measured energy levels, a power profile for the configured period, or both.

[0234] Example 3: The method of Example 2, wherein configuring the control interface includes: powering the control interface for a first time duration at least in part based on one or more measured energy levels exceeding the power threshold.

[0235] Example 4: The method of Example 3, further comprising: using the control interface to monitor a control channel for a first time duration at least in part based on powering on the control interface; receiving control information from the base station at least in part based on monitoring the control channel before the expiration of the first time duration, wherein the control information includes one or more commands for the control interface; and configuring the control interface at least in part based on the one or more commands.

[0236] Example 5: The method of any one of Examples 3 to 4, further comprising: using the control interface to monitor a control channel for a first time duration at least in part based on powering on the control interface; and powering off the control interface upon expiration of the first time duration.

[0237] Example 6: The method of any one of Examples 2 to 5, wherein configuring the control interface includes: powering the control interface for a first time duration at least in part based on one or more measured energy levels matching the power profile.

[0238] Example 7: The method of Example 6, further comprising: using the control interface to monitor a control channel for a first time duration at least in part based on powering on the control interface; receiving control information from the base station at least in part based on monitoring the control channel before the expiration of the first time duration, wherein the control information includes one or more commands for the control interface; and configuring the control interface at least in part based on the one or more commands.

[0239] Example 8: The method of any one of Examples 6 to 7 further includes: monitoring a control channel for a first time duration using the control interface based at least in part on powering on the control interface; and powering off the control interface upon expiration of the first time duration.

[0240] Example 9: The method of any one of Examples 6 to 8 further includes: determining a ratio between a first measured energy level among one or more measured energy levels and a second measured energy level among one or more measured energy levels, where the first measured energy level includes a first average power level of a first set of symbols of a periodic signal and the second measured energy level includes a second average power level of a second set of symbols of the periodic signal; and determining that one or more measured energy levels match the power profile based at least in part on the ratio.

[0241] Example 10: In the method of Example 9, comparing one or more measured energy levels with the power threshold information includes: comparing the ratio with the power profile.

[0242] Example 11: In the method of Example 10, where comparing one or more measured energy levels with the power threshold information includes: comparing the ratio with the power profile.

[0243] Example 12: In the method of any one of Examples 2 to 11, configuring the control interface includes: transitioning to a low power state based at least in part on one or more measured energy levels being below the power threshold or different from the power profile.

[0244] Example 13: In the method of any one of Examples 2 to 12, where the power threshold for one or more measured energy levels includes a constant power envelope for a configured time period and where the power profile for the configured time period includes an energy-time variation pattern across the configured time period.

[0245] Example 14: In the method of any one of Examples 1 to 13, measuring one or more energy levels associated with a received periodic signal across a configured time period includes: measuring a first average energy level of a first symbol of the received periodic signal across the configured time period; and measuring a second average energy level of one or more remaining symbols of the received periodic signal across the configured time period.

[0246] Example 15: In the method of Example 14, configuring the control interface includes: powering the control interface for a first time duration or transitioning to a low power state based at least in part on a difference between the first average energy level and the second average energy level.

[0247] Example 16: In the method of Example 15, where the power threshold information includes the difference.

[0248] Example 17: The method of any one of Examples 1 to 16 further includes: performing an amplification operation on the received periodic signal; and transmitting the amplified periodic signal to the UE.

[0249] Example 18: The method of any one of Examples 1 to 17, wherein the periodic signal includes a synchronization signal block and the configured time period includes four symbols of the synchronization signal block.

[0250] Example 19: An apparatus for wireless communication at a wireless repeater includes at least one means for performing the method of any one of Examples 1 to 18.

[0251] Example 20: An apparatus for wireless communication at a device in a wireless network includes at least one means for performing the method of any one of Examples 1 to 19.

[0252] Example 21: A device for wireless communication at a base station includes a processor and a memory coupled to the processor, the processor and the memory being configured to perform the method of any one of Examples 1 to 19.

[0253] Example 22: A non-transitory computer-readable medium storing code for wireless communication at a device in a wireless network, the code including instructions executable by a processor to perform the method of any one of Examples 1 to 19.

[0254] Example 23: A method for wireless communication at a base station includes: transmitting a control interface trigger configuration to a wireless repeater, wherein the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater; determining, at least in part, one or more transmit power levels for a periodic signal within a configured time period based on the configuration of the wireless repeater and the control interface trigger configuration; and transmitting the periodic signal during the configured time period based at least in part on one or more determined transmit power levels.

[0255] Example 24: The method of Example 23 further includes: determining, at least in part, whether to send new control information to the wireless repeater based on the configuration of the wireless repeater; and determining, at least in part, whether to trigger powering of the control interface of the wireless repeater based on determining whether to send new control information to the wireless repeater.

[0256] Example 25: The method of Example 24, wherein one or more transmit power levels for the periodic signal within the configured time period are determined at least in part based on determining whether to trigger powering of the control interface of the wireless repeater and the power threshold information.

[0257] Example 26: The method according to any one of Examples 23 to 25 further comprises: determining new control information for the wireless repeater; determining to trigger power supply to the control interface of the wireless repeater at least in part based on the new control information, wherein at least one of one or more transmit power levels is determined at least in part based on determining to trigger power supply to the control interface of the wireless repeater; and boosting the at least one of one or more transmit power levels for a periodic signal.

[0258] Example 27: In the method according to Example 26, boosting the at least one of one or more transmit power levels comprises: boosting the at least one of one or more transmit power levels by a difference compared to the remaining power levels of one or more transmit power levels, wherein the power threshold information comprises the difference.

[0259] Example 28: In the method according to any one of Examples 26 to 27, the boosting is at least in part based on the power threshold information.

[0260] Example 29: In the method according to Example 28, the power threshold information comprises a power threshold for one or more transmit power levels, a power profile for a configured time period, or both, wherein the power threshold for one or more transmit power levels comprises a constant power envelope for a configured time period, and wherein the power profile for a configured time period comprises an energy-time variation pattern across the configured time period.

[0261] Example 30: The method according to any one of Examples 26 to 29 further comprises: transmitting the new control information to the wireless repeater before the expiration of a first time duration, wherein the control interface triggers a configuration indicating the first time duration.

[0262] Example 31: In the method according to any one of Examples 23 to 30, the periodic signal comprises a synchronization signal block and the configured time period comprises four symbols of the synchronization signal block.

[0263] Example 32: An apparatus for wireless communication at a device in a wireless network comprises at least one means for performing the method according to any one of Examples 23 to 31.

[0264] Example 33: A device for wireless communication at a base station comprises a processor and a memory coupled to the processor, the processor and the memory being configured to perform the method according to any one of Examples 23 to 31.

[0265] Example 34: A non-transitory computer-readable medium storing code for wireless communication at a device in a wireless network, the code comprising instructions executable by a processor to perform the method according to any one of Examples 23 to 31.

[0266] Example 35: A method for wireless communication at a device in a wireless network, comprising: receiving a control interface trigger configuration from a base station, wherein the control interface trigger configuration includes power threshold information for powering the control interface of the device; receiving a periodic signal from the base station during a configured period; measuring one or more energy levels associated with the received periodic signal across the configured period at least in part based on the received control interface trigger configuration; and configuring the control interface at least in part based on the one or more measured energy levels and the control interface trigger configuration.

[0267] Example 36: The method of Example 35, further comprising: comparing the one or more measured energy levels with the power threshold information, wherein the power threshold information includes a power threshold for the one or more measured energy levels, a power profile for the configured period, or both.

[0268] Example 37: The method of any one of Examples 35 to 36, wherein measuring one or more energy levels associated with the received periodic signal across the configured period includes: measuring a first average energy level of a first symbol of the received periodic signal across the configured period; and measuring a second average energy level of one or more remaining symbols of the received periodic signal across the configured period.

[0269] Example 38: An apparatus for wireless communication at a device in a wireless network includes at least one means for performing the method of any one of Examples 35 to 37.

[0270] Example 40: A device for wireless communication at a device in a wireless network, comprising a processor and a memory coupled to the processor, the processor and the memory being configured to perform the method of any one of Examples 35 to 37.

[0271] Example 42: A non-transitory computer-readable medium storing code for wireless communication at a device in a wireless network, the code including instructions executable by a processor to perform the method of any one of Examples 35 to 37.

[0272] The techniques described herein can be used in various wireless communication systems such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), and other systems. CDMA systems can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 covers standards such as IS-2000, IS-95, and IS-856. The IS-2000 version is commonly referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. TDMA systems can implement radio technologies such as Global System for Mobile Communications (GSM).

[0273] OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). LTE, LTE-A, and LTE-A Pro are UMTS versions that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Pro, NR, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used in the systems and radio technologies mentioned herein, as well as in other systems and radio technologies. Although aspects of the LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes and the LTE, LTE-A, LTE-A Pro, or NR terms may be used in most of the description, the techniques described herein can also be applied to applications other than LTE, LTE-A, LTE-A Pro, or NR applications.

[0274] A macro cell can cover a relatively large geographical area (e.g., an area with a radius of several kilometers) and can allow unconstrained access by UEs having a service subscription with a network provider. A small cell can be associated with a lower-power base station (compared to a macro cell), and the small cell can operate in the same or a different (e.g., licensed, unlicensed, etc.) frequency band as the macro cell. According to various examples, small cells can include picocells, femtocells, and microcells. A picocell, for example, can cover a smaller geographical area and can allow unconstrained access by UEs having a service subscription with a network provider. A femtocell can also cover a smaller geographical area (e.g., a residence) and can provide constrained access by UEs associated with the femtocell (e.g., UEs in a closed subscriber group (CSG), UEs of users in the residence, etc.). The eNB for a macro cell can be referred to as a macro eNB. The eNB for a small cell can be referred to as a small cell eNB, a pico eNB, a femto eNB, or a home eNB. An eNB can support one or more (e.g., two, three, four, etc.) cells and can also support communication using one or more component carriers.

[0275] The wireless communication systems described herein can support synchronous or asynchronous operation. For synchronous operation, the base stations can have similar frame timings, and transmissions from different base stations can be approximately aligned in time. For asynchronous operation, the base stations can have different frame timings, and transmissions from different base stations may not be aligned in time. The techniques described herein can be used for synchronous or asynchronous operation.

[0276] The information and signals described herein can be represented using any of a variety of different arts and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.

[0277] The various illustrative blocks and modules described in connection with the disclosure herein can be implemented or executed with a general-purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor can be a microprocessor, but in the alternative, the processor can be any conventional processor, controller, microcontroller, or state machine. The processor can 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).

[0278] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored on or transmitted via a computer-readable medium as one or more instructions or code. Other examples and implementations fall within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein can be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. The features implementing the functions can also be physically located in various places, including being distributed such that portions of the functions are implemented at different physical locations.

[0279] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. Non-transitory storage media can be any available media that can be accessed by a general or special purpose computer. By way of example and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a general or special purpose computer, or a general or special purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of the medium. As used herein, the terms "disk" and "disc" include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where disks typically reproduce data magnetically and discs reproduce data optically with a laser. Combinations of the above media are also included within the scope of computer-readable media.

[0280] As used herein (including in the claims), the "or" used in a list of items (e.g., a list of items accompanied by phrases such as "at least one of" or "one or more of") indicates an inclusive listing such that, for example, the listing 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). Similarly, as used herein, the phrase "based on" should not be construed as reciting a closed set of conditions. For example, an exemplary step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on".

[0281] In the drawings, like components or features may have the same reference numerals. Additionally, each of the same type of components may be distinguished by following the reference numeral with a dash and a second numeral that differentiates between similar components. If only the first reference numeral is used in the specification, the description may apply to any one of the similar components having the same first reference numeral regardless of the second reference numeral, or any other subsequent reference numerals.

[0282] The description set forth herein in connection with the drawings describes exemplary configurations and does not represent all examples that may be implemented or that fall within the scope of the claims. The term "exemplary" as used herein means "serving as an example, instance, or illustration" and does not mean "superior to" or "better than" other examples. This detailed description includes specific details to provide an understanding of the described techniques. However, the techniques may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0283] The description provided herein is to enable a person skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a wireless repeater, comprising: Receiving a control interface trigger configuration from a network entity, wherein the control interface trigger configuration includes power threshold information for powering the control interface of the wireless repeater; Receiving a periodic signal from the network entity during a configured period, wherein the power threshold information includes a power profile for the configured period; Measuring one or more energy levels associated with the received periodic signal across the configured period, at least in part based on the received control interface trigger configuration; And Configuring the control interface at least in part based on the one or more measured energy levels and the control interface trigger configuration, wherein configuring the control interface includes: powering the control interface or powering down the control interface for a first time duration, at least in part based on matching the power profile with the one or more measured energy levels.

2. The method according to claim 1, further comprising: Comparing the one or more measured energy levels with the power threshold information, wherein the power threshold information further includes power thresholds for the one or more measured energy levels.

3. The method according to claim 2, wherein configuring the control interface includes: Powering the control interface for the first time duration, at least in part based on the one or more measured energy levels exceeding the power threshold.

4. The method according to claim 3, further comprising: Using the control interface to monitor a control channel for the first time duration, at least in part based on powering up the control interface; Receiving control information from the network entity before the expiration of the first time duration, at least in part based on monitoring the control channel, wherein the control information includes one or more commands for the control interface; And Configuring the control interface at least in part based on the one or more commands.

5. The method according to claim 3, further comprising: Using the control interface to monitor a control channel for the first time duration, at least in part based on powering up the control interface; And Powering down the control interface upon expiration of the first time duration.

6. The method according to claim 1, further comprising: Using the control interface to monitor a control channel for the first time duration, at least in part based on powering up the control interface; Receiving control information from the network entity before the expiration of the first time duration, at least in part based on monitoring the control channel, wherein the control information includes one or more commands for the control interface; And Configuring the control interface at least in part based on the one or more commands.

7. The method according to claim 1, further comprising: Using the control interface to monitor a control channel for the first time duration, at least in part based on powering up the control interface; And Powering down the control interface upon expiration of the first time duration.

8. The method according to claim 1, further comprising: Determine a ratio between a first measured energy level and a second measured energy level among the one or more measured energy levels, wherein the first measured energy level includes a first average power level of a first set of symbols of the periodic signal and the second measured energy level includes a second average power level of a second set of symbols of the periodic signal; and Determine that the one or more measured energy levels match the power profile at least in part based on the ratio.

9. The method of claim 8, wherein comparing the one or more measured energy levels with the power threshold information further comprises: Comparing the ratio with the power profile.

10. The method of claim 9, wherein the power profile includes a power variation pattern across the first set of symbols of the periodic signal and the second set of symbols of the periodic signal.

11. The method of claim 2, wherein configuring the control interface comprises: Switching to a low power state at least in part based on the one or more measured energy levels being below the power threshold or different from the power profile.

12. The method of claim 2, wherein the power threshold for the one or more measured energy levels includes a constant power envelope for the configured period, and wherein the power profile for the configured period includes an energy-time variation pattern across the configured period.

13. The method of claim 1, wherein measuring the one or more energy levels associated with the received periodic signal across the configured period comprises: Measuring a first average energy level of a first symbol of the received periodic signal across the configured period; and Measuring a second average energy level of one or more remaining symbols of the received periodic signal across the configured period.

14. The method of claim 13, wherein configuring the control interface comprises: Powering the control interface for the first time duration or switching to a low power state at least in part based on a difference between the first average energy level and the second average energy level.

15. The method of claim 14, wherein the power threshold information includes the difference.

16. The method of claim 1, further comprising: Performing an amplification operation on the received periodic signal to generate an amplified periodic signal; and Transmitting the amplified periodic signal to a user equipment (UE).

17. The method of claim 1, wherein the periodic signal includes a synchronization signal block associated with a reference signal and the configured period includes four symbols of the synchronization signal block.

18. The method of claim 1: wherein the periodic signal is different from the control interface trigger configuration, wherein the configured period includes at least one symbol of a reference signal, and / or wherein the control interface includes digital circuitry configured to process control information communicated at the wireless repeater.

19. A method for wireless communication at a network entity, comprising: Transmit a control interface trigger configuration to a wireless repeater, wherein the control interface trigger configuration includes power threshold information for powering or powering down the control interface of the wireless repeater for a first time duration based at least in part on one or more energy levels matching a power profile for a configured period, wherein the power threshold information includes the power profile, and wherein the one or more energy levels are associated with a periodic signal; Determine, at least in part based on the configuration of the wireless repeater and the control interface trigger configuration, one or more transmit power levels for the periodic signal during the configured period; And Transmit the periodic signal during the configured period based at least in part on the determined one or more transmit power levels.

20. The method of claim 19, further comprising: Determine, at least in part based on the configuration of the wireless repeater, whether to send new control information to the wireless repeater; And Determine, at least in part based on determining whether to send the new control information to the wireless repeater, whether to trigger powering of the control interface of the wireless repeater.

21. The method of claim 20, wherein the one or more transmit power levels for the periodic signal during the configured period are determined at least in part based on determining whether to trigger powering of the control interface of the wireless repeater and the power threshold information.

22. The method of claim 19, further comprising: Determine new control information for the wireless repeater; Determine, at least in part based on the new control information, to trigger powering of the control interface of the wireless repeater, wherein at least one of the one or more transmit power levels is determined at least in part based on determining to trigger powering of the control interface of the wireless repeater; And Boost at least one of the one or more transmit power levels for the periodic signal.

23. The method of claim 22, wherein boosting at least one of the one or more transmit power levels further comprises: Boosting at least one of the one or more transmit power levels by a difference compared to the remaining power levels of the one or more transmit power levels, wherein the power threshold information includes the difference.

24. The method of claim 22, wherein the boosting is at least in part based on the power threshold information.

25. The method of claim 24, wherein the power threshold information further includes power thresholds for the one or more transmit power levels, wherein the power thresholds for the one or more transmit power levels include a constant power envelope for the configured period, and wherein the power profile for the configured period includes an energy-time variation pattern across the configured period.

26. The method of claim 22, further comprising: Transmit the new control information to the wireless repeater before the expiration of the first time duration, wherein the control interface trigger configuration indicates the first time duration.

27. The method according to claim 19: wherein the control interface includes digital circuitry configured to process control information communicated at the wireless repeater, wherein the periodic signal is different from the control interface trigger configuration, and / or wherein the configured period includes at least one symbol of a reference signal.

28. A method for wireless communication at a device in a wireless network, comprising: Receiving a control interface trigger configuration from a network entity, wherein the control interface trigger configuration includes power threshold information for powering the control interface of the device; Receiving a periodic signal from the network entity during a configured period, wherein the power threshold information includes a power profile for the configured period; Measuring one or more energy levels associated with the received periodic signal across the configured period, at least in part based on the received control interface trigger configuration; And Configuring the control interface at least in part based on the one or more measured energy levels matching the power profile and the control interface trigger configuration, wherein the power threshold information relates to powering or powering down the control interface for a first time duration.

29. The method according to claim 28, further comprising: Comparing the one or more measured energy levels with the power threshold information, wherein the power threshold information further includes power thresholds for the one or more measured energy levels.

30. The method according to claim 28, wherein measuring the one or more energy levels associated with the received periodic signal across the configured period further comprises: Measuring a first average energy level of a first symbol of the received periodic signal across the configured period; And Measuring a second average energy level of one or more remaining symbols of the received periodic signal across the configured period.

31. The method according to claim 28: wherein the periodic signal is different from the control interface trigger configuration, wherein the configured period includes at least one symbol of a reference signal, and / or wherein the control interface includes digital circuitry configured to process control information communicated at the device.

32. An apparatus for wireless communication at a wireless device, comprising: One or more memories; And One or more processors coupled to the one or more memories and configured to cause the wireless device to: Receive a control interface trigger configuration from a network entity, wherein the control interface trigger configuration includes power threshold information for powering the control interface of the wireless device; Receive a periodic signal from the network entity during a configured period, wherein the power threshold information includes a power profile for the configured period; Measure one or more energy levels associated with the received periodic signal over the configured period, at least in part based on the received control interface trigger configuration; and Configure the control interface at least in part based on the one or more measured energy levels and the control interface trigger configuration, wherein the one or more processors are configured to cause the wireless device to configure the control interface by: powering on or powering off the control interface for a first time duration, at least in part based on matching the power profile with the one or more measured energy levels.

33. The apparatus of claim 32, wherein the one or more processors are further configured to cause the wireless device to: Compare the one or more measured energy levels with the power threshold information, wherein the power threshold information further includes power thresholds for the one or more measured energy levels.

34. The apparatus of claim 33, wherein the one or more processors are configured to cause the wireless device to configure the control interface by: Powering on the control interface for the first time duration, at least in part based on the one or more measured energy levels exceeding the power threshold.

35. The apparatus of claim 34, wherein the one or more processors are further configured to cause the wireless device to: Use the control interface to monitor a control channel for the first time duration, at least in part based on powering on the control interface; Receive control information from the network entity before the expiration of the first time duration, at least in part based on monitoring the control channel, wherein the control information includes one or more commands for the control interface; and Configure the control interface, at least in part based on the one or more commands.

36. The apparatus of claim 34, wherein the one or more processors are further configured to cause the wireless device to: Use the control interface to monitor a control channel for the first time duration, at least in part based on powering on the control interface; and Power off the control interface upon expiration of the first time duration.

37. The apparatus of claim 32, wherein the one or more processors are further configured to cause the wireless device to: Use the control interface to monitor a control channel for the first time duration, at least in part based on powering on the control interface; Receive control information from the network entity before the expiration of the first time duration, at least in part based on monitoring the control channel, wherein the control information includes one or more commands for the control interface; and Configure the control interface, at least in part based on the one or more commands.

38. The apparatus of claim 32, wherein the one or more processors are further configured to cause the wireless device to: Use the control interface to monitor a control channel for the first time duration, at least in part based on powering on the control interface; and Power off the control interface upon expiration of the first time duration.

39. The apparatus according to claim 32, wherein the one or more processors are further configured to cause the wireless device to: determine a ratio between a first measured energy level and a second measured energy level among the one or more measured energy levels, wherein the first measured energy level includes a first average power level of a first set of symbols of the periodic signal and the second measured energy level includes a second average power level of a second set of symbols of the periodic signal; and determine that the one or more measured energy levels match the power profile at least in part based on the ratio.

40. The apparatus according to claim 39, wherein the one or more processors are configured to cause the wireless device to compare the one or more measured energy levels with the power threshold information by: comparing the ratio with the power profile.

41. The apparatus according to claim 40, wherein the power profile includes a power variation pattern across the first set of symbols of the periodic signal and the second set of symbols of the periodic signal.

42. The apparatus according to claim 33, wherein the one or more processors are configured to cause the wireless device to configure the control interface by: switching to a low power state at least in part based on the one or more measured energy levels being below the power threshold or different from the power profile.

43. The apparatus according to claim 33, wherein the power threshold for the one or more measured energy levels includes a constant power envelope for the configured period, and wherein the power profile for the configured period includes an energy-time variation pattern across the configured period.

44. The apparatus according to claim 32, wherein the one or more processors are configured to cause the wireless device to measure the one or more energy levels associated with the received periodic signal across the configured period by: measuring a first average energy level of a first symbol of the received periodic signal across the configured period; and measuring a second average energy level of one or more remaining symbols of the received periodic signal across the configured period.

45. The apparatus according to claim 44, wherein the one or more processors are configured to cause the wireless device to configure the control interface by: powering the control interface for the first time duration or switching to a low power state at least in part based on a difference between the first average energy level and the second average energy level.

46. The apparatus according to claim 45, wherein the power threshold information includes the difference.

47. The apparatus according to claim 32, wherein the one or more processors are further configured to cause the wireless device to: perform an amplification operation on the received periodic signal to generate an amplified periodic signal; and transmit the amplified periodic signal to a user equipment (UE).

48. The apparatus according to claim 32, wherein the periodic signal includes a synchronization signal block associated with a reference signal and the configured period includes four symbols of the synchronization signal block.

49. The apparatus according to claim 32: wherein the periodic signal is different from the control interface trigger configuration, wherein the configured period includes at least one symbol of the reference signal, and / or wherein the control interface includes digital circuitry configured to process control information communicated at the wireless device.

50. An apparatus for wireless communication at a network entity, comprising: one or more memories; and one or more processors coupled to the one or more memories and configured to cause the network entity to: transmit a control interface trigger configuration to a wireless repeater, wherein the control interface trigger configuration includes power threshold information for powering on or powering off the control interface of the wireless repeater for a first time duration based at least in part on one or more energy levels to match a power profile for a configured period, wherein the power threshold information includes the power profile, and wherein the one or more energy levels are associated with a periodic signal; determine, at least in part based on the configuration of the wireless repeater and the control interface trigger configuration, one or more transmit power levels for the periodic signal during the configured period; and transmit the periodic signal during the configured period based at least in part on the determined one or more transmit power levels.

51. The apparatus according to claim 50, wherein the one or more processors are further configured to cause the network entity to: determine, at least in part based on the configuration of the wireless repeater, whether to send new control information to the wireless repeater; and determine, at least in part based on determining whether to send the new control information to the wireless repeater, whether to trigger powering on of the control interface of the wireless repeater.

52. The apparatus according to claim 51, wherein the one or more transmit power levels for the periodic signal during the configured period are determined at least in part based on determining whether to trigger powering on of the control interface of the wireless repeater and the power threshold information.

53. The apparatus according to claim 50, wherein the one or more processors are further configured to cause the network entity to: determine new control information for the wireless repeater; determine, at least in part based on the new control information, to trigger powering on of the control interface of the wireless repeater, wherein at least one of the one or more transmit power levels is determined at least in part based on determining to trigger powering on of the control interface of the wireless repeater; and boost the at least one of the one or more transmit power levels for the periodic signal.

54. The apparatus according to claim 53, wherein the one or more processors are configured to cause the network entity to boost at least one of the one or more transmit power levels by: boosting at least one of the one or more transmit power levels by a difference compared to the remaining power levels of the one or more transmit power levels, wherein the power threshold information includes the difference.

55. The apparatus according to claim 53, wherein the one or more processors are configured to cause the network entity to boost at least in part based on the power threshold information.

56. The apparatus according to claim 55, wherein the power threshold information further includes a power threshold for the one or more transmit power levels, wherein the power threshold for the one or more transmit power levels includes a constant power envelope for the configured period, and wherein the power profile for the configured period includes an energy-time variation pattern across the configured period.

57. The apparatus according to claim 53, wherein the one or more processors are further configured to cause the network entity to: transmit the new control information to the wireless repeater before the expiration of the first time duration, wherein the control interface trigger configures an indication of the first time duration.

58. The apparatus according to claim 50: wherein the control interface includes digital circuitry configured to process control information communicated at the wireless repeater, wherein the periodic signal is different from the control interface trigger configuration, and / or wherein the configured period includes at least one symbol of a reference signal.

59. An apparatus for wireless communication at a wireless device, comprising: one or more memories; and one or more processors coupled to the one or more memories and configured to cause the wireless device to: receive a control interface trigger configuration from a network entity, wherein the control interface trigger configuration includes power threshold information for powering the control interface of the device; receive a periodic signal from the network entity during a configured period, wherein the power threshold information includes a power profile for the configured period; measure one or more energy levels associated with the received periodic signal across the configured period at least in part based on the received control interface trigger configuration; and configure the control interface at least in part based on one or more measured energy levels matching the power profile and the control interface trigger configuration, wherein the power threshold information relates to powering or powering down the control interface for a first time duration.

60. The apparatus according to claim 59, wherein the one or more processors are further configured to cause the wireless device to: compare the one or more measured energy levels with the power threshold information, wherein the power threshold information further includes a power threshold for the one or more measured energy levels.

61. The apparatus of claim 59, wherein the one or more processors are further configured to cause the wireless device to measure the one or more energy levels associated with the received periodic signal across the configured period by: Measuring a first average energy level of a first symbol of the received periodic signal across the configured period; and Measuring a second average energy level of one or more remaining symbols of the received periodic signal across the configured period.

62. The apparatus of claim 59: Wherein the periodic signal is different from the control interface trigger configuration, Wherein the configured period includes at least one symbol of a reference signal, and / or Wherein the control interface includes digital circuitry configured to process control information communicated at the device.

63. An apparatus for wireless communication at a device in a wireless network, comprising: Means for performing the steps of the method of any one of claims 1-31.

64. A non-transitory computer-readable medium having program code recorded thereon, wherein the program code, when executed by one or more processors of a device in a wireless network, causes the one or more processors to perform the steps of the method of any one of claims 1-31.

Images