Broadband control signal transmission

Abstract

Methods, systems, and apparatus for wireless communications are described. A base station may configure a user equipment (UE) with multiple listen-before-talk (LBT) bandwidths, wherein each LBT bandwidth is associated with one or more downlink control channel candidates for a search space of a control resource set. The UE may monitor the LBT bandwidth during a wake-up signal period to search for a wake-up signal from the base station. The UE may be configured with a total number of blind hypotheses in a set of blind hypotheses, the total number of blind hypotheses being equal to or greater than the total number of LBT bandwidths. The UE may determine whether to wake up based on detecting the wake-up signal and monitor the on duration of a discontinuous reception cycle.

Description

[0001] Cross-references

[0002] This patent application claims priority to U.S. patent application No. 17 / 105,321, entitled “WIDEBAND CONTROLSIGNAL TRANSMISSION,” filed by ZHANG et al. on November 25, 2020, and U.S. provisional patent application No. 62 / 961,619, entitled “WIDEBAND CONTROL SIGNAL TRANSMISSION,” filed by ZHANG et al. on January 15, 2020, each of which is assigned to the assignee of this application.

[0003] background

[0004] The following relates generally to wireless communications, and more particularly to broadband control signaling.

[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasting, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems), and fifth generation (5G) systems that may be referred to as new radio (NR) systems. These systems may use various technologies, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include several base stations or network access nodes, each of which simultaneously supports the communication of multiple communication devices, which may be referred to as user equipment (UE).

[0006] Overview

[0007] The described techniques relate to improved methods, systems, devices, and apparatuses (equipment) that support broadband control signal transmission. In general, the described techniques provide for configuring a user equipment (UE) with sufficient blind decoding hypotheses to detect control signal transmission when the UE is configured with multiple listen-before-talk (LBT) bandwidths. For example, in some systems, the UE may monitor during a pre-wake-up gap to look for a wake-up signal to determine whether the UE has pending communications from a base station. If the UE detects a wake-up signal, the UE may monitor during the "on duration" of the DRX cycle to look for signaling. If the UE does not detect a wake-up signal, the UE may not monitor the on duration, but instead may remain in a low power state until the next pre-wake-up gap.

[0008] Some wireless communication systems may support configuring a UE with a broadband control resource set. For a control resource set configuration in a serving cell having a carrier bandwidth greater than an LBT bandwidth, a search space set configuration associated with the control resource set may have multiple monitoring locations in the frequency domain. For example, the search space for a control resource set may be split into multiple LBT bandwidths. When the system bandwidth has multiple LBT bandwidths, the UE may search up to as many LBT bandwidths to detect control signals. By implementing the techniques described herein, when a UE is configured with multiple LBT bandwidths, the UE may be configured with enough blind hypotheses to reliably detect control signals. In some cases, the UE may be configured with at least as many blind hypotheses as the existing LBT bandwidths for control signal detection. In some cases, the UE may monitor a subset of the LBT bandwidth across different configured monitoring opportunities, which may reduce the number of blind hypotheses in each opportunity. Additional techniques for associating an LBT bandwidth with a beam or a transmission configuration indicator (TCI) state are described.

[0009] A method for wireless communication at a UE is described. The method may include: receiving a configuration for a listen-before-talk bandwidth set from a base station, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates of a search space for a control resource set; and monitoring one or more listen-before-talk bandwidths in the listen-before-talk bandwidth set based on a set of blind hypotheses associated with the listen-before-talk bandwidths, wherein a total number of blind hypotheses in the set of blind hypotheses is equal to or greater than a total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set.

[0010] An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: receive a configuration for a listen-before-talk bandwidth set from a base station, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates of a search space for a control resource set; and monitor one or more listen-before-talk bandwidths in the listen-before-talk bandwidth set based on a blind hypothesis set associated with the listen-before-talk bandwidth, wherein a total number of blind hypotheses in the blind hypothesis set is equal to or greater than a total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set.

[0011] Another apparatus for wireless communication at a UE is described. The apparatus may include means for: receiving a configuration for a listen-before-talk bandwidth set from a base station, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates of a search space for a control resource set; and monitoring one or more listen-before-talk bandwidths in the listen-before-talk bandwidth set based on blind hypotheses associated with the listen-before-talk bandwidths, wherein a total number of blind hypotheses in the blind hypothesis set is equal to or greater than a total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set.

[0012] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor for the following operations: receiving a configuration for a listen-before-talk bandwidth set from a base station, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates of a search space for a control resource set; and monitoring one or more listen-before-talk bandwidths in the listen-before-talk bandwidth set based on a blind hypothesis set associated with the listen-before-talk bandwidth, wherein a total number of blind hypotheses in the blind hypothesis set is equal to or greater than a total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set.

[0013] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, monitoring one or more listen-before-talk bandwidths in the listen-before-talk bandwidth set may include operations, features, apparatuses, or instructions for the following actions: monitoring the one or more listen-before-talk bandwidths during a wake-up signal period to look for a wake-up signal from the base station; and determining whether to wake up and monitor the DRX duration based on detecting the wake-up signal.

[0014] Some examples of the methods, apparatus (devices) and non-transitory computer-readable media described herein may further include operations, features, apparatuses or instructions for: detecting the wake-up signal based on the monitoring; and monitoring during the DRX duration for a downlink control channel signal based on the detected wake-up signal.

[0015] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for: determining, based on the monitoring, that the wake-up signal is not received during the wake-up signal period; and remaining in a low power state during the DRX duration.

[0016] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, monitoring one or more listen-before-talk bandwidths in the listen-before-talk bandwidth set may include operations, features, apparatus, or instructions for the following actions: monitoring a first subset of the listen-before-talk bandwidth set during a first monitoring opportunity based on a first subset of the blind hypothesis set; and monitoring a second subset of the listen-before-talk bandwidth set during a second monitoring opportunity based on a second subset of the blind hypothesis set.

[0017] 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 actions: receiving an indication of a first subset of the listen-before-talk bandwidth set and a second subset of the listen-before-talk bandwidth set from the base station.

[0018] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, receiving an indication of a first subset of the listen-before-talk bandwidth set and a second subset of the listen-before-talk bandwidth set may include operations, features, apparatus, or instructions for the following actions: receiving a control resource set configuration in conjunction with a configuration for the listen-before-talk bandwidth set, the control resource set configuration including an indication of a first subset of the listen-before-talk bandwidth set and a second subset of the listen-before-talk bandwidth set.

[0019] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, monitoring one or more listen-before-talk bandwidths in the listen-before-talk bandwidth set may include operations, features, apparatuses, or instructions for the following actions: using a first beam to monitor a first listen-before-talk bandwidth in the listen-before-talk bandwidth set; and using a second beam to monitor a second listen-before-talk bandwidth in the listen-before-talk bandwidth set.

[0020] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, monitoring one or more listen-before-talk bandwidths in the listen-before-talk bandwidth set may include operations, features, apparatuses, or instructions for the following actions: receiving a transmission configuration indicator (TCI) for each listen-before-talk bandwidth in the listen-before-talk bandwidth set from the base station; and determining a first beam and a second beam, respectively, based on the TCI received for each of the first listen-before-talk bandwidth and the second listen-before-talk bandwidth.

[0021] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for: monitoring for downlink control information from the base station.

[0022] A method for wireless communication at a base station is described. The method may include: transmitting a configuration for a listen-before-talk bandwidth set to a UE, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates of a search space for a control resource set; and transmitting downlink control information on a listen-before-talk bandwidth in the listen-before-talk bandwidth set based on the UE being configured with a total number of blind hypotheses in the blind hypothesis set that is equal to or greater than the total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set.

[0023] An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: transmit a configuration for a listen-before-talk bandwidth set to a UE, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates of a search space for a control resource set; and transmit downlink control information on a listen-before-talk bandwidth in the listen-before-talk bandwidth set based on the UE being configured with a total number of blind hypotheses in the blind hypothesis set that is equal to or greater than the total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set.

[0024] Another apparatus for wireless communication at a base station is described. The apparatus may include means for: transmitting a configuration for a listen-before-talk bandwidth set to a UE, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set; and transmitting downlink control information on a listen-before-talk bandwidth in the listen-before-talk bandwidth set based on the UE being configured with a total number of blind hypotheses in the blind hypothesis set that is equal to or greater than the total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set.

[0025] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor for the following operations: transmitting a configuration for a listen-before-talk bandwidth set to a UE, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates of a search space for a control resource set; and transmitting downlink control information on a listen-before-talk bandwidth in the listen-before-talk bandwidth set based on the UE being configured with a total number of blind hypotheses in the blind hypothesis set that is equal to or greater than the total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set.

[0026] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, transmitting the downlink control information may further include operations, features, apparatus, or instructions for the following actions: transmitting a wake-up signal during a wake-up signal period of the UE; and transmitting to the UE on the one or more listen-before-talk bandwidths during the DRX duration based on transmitting the wake-up signal.

[0027] In some examples of the methods, apparatuses (devices) and non-transitory computer-readable media described herein, transmitting the downlink control information may further include operations, features, apparatuses or instructions for the following actions: a first listen-before-talk bandwidth subset based on the listen-before-talk bandwidth set includes a first subset of downlink control channel candidates, and the downlink control information is transmitted during a first transmission opportunity on the listen-before-talk bandwidth; or, and a second listen-before-talk bandwidth subset based on the listen-before-talk bandwidth set includes a second subset of downlink control channel candidates, and the downlink control information is transmitted during a second transmission opportunity on the listen-before-talk bandwidth.

[0028] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for transmitting an indication of a first listen-before-talk bandwidth subset of the listen-before-talk bandwidth set and a second listen-before-talk bandwidth subset of the listen-before-talk bandwidth set.

[0029] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, transmitting an indication of a first listen-before-talk bandwidth subset of the listen-before-talk bandwidth set and a second listen-before-talk bandwidth subset of the listen-before-talk bandwidth set may include operations, features, apparatus, or instructions for the following actions: transmitting a control resource set configuration in conjunction with a configuration for the listen-before-talk bandwidth set, the control resource set configuration including an indication of a first listen-before-talk bandwidth subset of the listen-before-talk bandwidth set and a second listen-before-talk bandwidth subset of the listen-before-talk bandwidth set.

[0030] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, transmitting the downlink control information may further include operations, features, apparatus, or instructions for the following actions: transmitting the downlink control information using a beam associated with a listen-before-talk bandwidth.

[0031] 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 a corresponding transmission configuration indicator (TCI) state for each listen-before-talk bandwidth in the listen-before-talk bandwidth set, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set may be associated with a corresponding beam based on the corresponding TCI state. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1

[0013] An example of a system for wireless communications supporting broadband control signaling in accordance with aspects of the present disclosure is illustrated.

[0034] Figure 2

[0013] An example of a wireless communication system for supporting broadband control signaling in accordance with aspects of the present disclosure is illustrated.

[0035] Figure 3 An example of a listen-before-talk (LBT) bandwidth configuration supporting wideband control signal transmission in accordance with aspects of the present disclosure is illustrated.

[0036] Figure 4 An example of an LBT wideband configuration supporting wideband control signal transmission according to aspects of the present disclosure is illustrated.

[0037] Figure 5 An example of a process flow supporting broadband control signal transmission according to aspects of the present disclosure is illustrated.

[0038] Figure 6 and Figure 7 A block diagram of a device supporting broadband control signal transmission according to aspects of the present disclosure is shown.

[0039] Figure 8 A block diagram of a communication manager supporting broadband control signaling in accordance with aspects of the present disclosure is shown.

[0040] Fig. 9 A diagram of a system including a device supporting broadband control signal transmission according to aspects of the present disclosure is shown.

[0041] Fig.10 and Fig.11 A block diagram of a device supporting broadband control signal transmission according to aspects of the present disclosure is shown.

[0042] Fig.12 A block diagram of a communication manager supporting broadband control signaling in accordance with aspects of the present disclosure is shown.

[0043] Fig.13 A diagram of a system including a device supporting broadband control signal transmission according to aspects of the present disclosure is shown.

[0044] Figures 14 to 19 A flow chart illustrating a method of supporting broadband control signal transmission according to aspects of the present disclosure is shown.

[0045] Detailed Description

[0046] Wireless communication systems may use discontinuous reception (DRX) cycles to improve power usage and battery performance of devices. In some systems, a user equipment (UE) may monitor several control channel hypotheses to look for control signals. For example, a UE may monitor during a pre-wake-up gap to look for a wake-up signal to determine whether the UE has a pending communication from a base station. If the UE detects a wake-up signal, the UE may monitor during the "on duration" of the DRX cycle to look for signaling. If the UE does not detect a wake-up signal, the UE may not monitor the on duration, but may instead remain in a low power state until the next pre-wake-up gap. In some wireless systems, in order to provide additional power savings, the UE may configure a limited number of downlink control channel hypotheses for wake-up signals, which may improve the detection rate and reduce the processing power for the UE to detect the wake-up signal.

[0047] Some wireless communication systems may support broadband control resource sets for UEs. For control resource set configurations in a serving cell having a carrier bandwidth greater than a listen-before-talk (LBT) bandwidth, a search space set configuration associated with the control resource set may have multiple monitoring locations in the frequency domain. For example, the search space for the control resource set may be split into multiple LBT bandwidths. When the system bandwidth has multiple LBT bandwidths, the UE may search up to as many LBT bandwidths to detect control signals. Some systems may not provide enough downlink control channel blind hypotheses for the UE to detect control signals. If the UE cannot detect the wake-up signal, the UE may lose control or data information.

[0048] By implementing the techniques described herein, when a UE is configured with multiple LBT bandwidths, the UE may be configured with enough blind hypotheses to reliably detect control signals. In some cases, the UE may be configured to use at least as many blind hypotheses as the existing LBT bandwidths for control signal detection. In some cases, the UE may monitor a subset of the LBT bandwidth across different configured monitoring opportunities, which may reduce the number of blind hypotheses in each opportunity. Additional techniques for associating an LBT bandwidth with a beam or a transmission configuration indicator (TCI) state are described.

[0049] Aspects of the present disclosure are initially described in the context of wireless communication systems. Aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow diagrams related to broadband control signal transmission.

[0050] Figure 1 An example of a wireless communication system 100 for supporting broadband control signal transmission according to various aspects of the present disclosure is illustrated. The wireless communication system 100 includes a base station 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 can be a long term evolution (LTE) network, an advanced LTE (LTE-A) network, an LTE-A Pro network, or a new radio (NR) network. In some cases, the wireless communication system 100 can support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low latency communication, or communication with low-cost and low-complexity devices.

[0051] The base station 105 may communicate wirelessly with the UE 115 via one or more base station antennas. The base station 105 described herein may include or may be referred to by those skilled in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a Node B, an evolved Node B (eNB), a next generation Node B, or a Gigabit Node B (any of which may be referred to as a gNB), a Home Node B, a Home Evolved Node B, or some other suitable terminology. The wireless communication system 100 may include different types of base stations 105 (e.g., macro cell base stations or small cell base stations). The UE 115 described herein may be able to communicate with various types of base stations 105 and network equipment (including macro eNBs, small cell eNBs, gNBs, relay base stations, etc.).

[0052] Each base station 105 may be associated with a particular geographic coverage area 110 in which it supports communications with various UEs 115. Each base station 105 may provide communications coverage for a respective geographic coverage area 110 via a communications link 125, and the communications link 125 between the base station 105 and the UE 115 may utilize one or more carriers. The communications link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105, or a downlink transmission from the base station 105 to the UE 115. Downlink transmissions may also be referred to as forward link transmissions, and uplink transmissions may also be referred to as reverse link transmissions.

[0053] The geographic coverage area 110 of the base station 105 may be divided into sectors that constitute a portion of the geographic coverage area 110, and each sector may be associated with a cellular cell. For example, each base station 105 may provide communication coverage for a macrocellular cell, a small cellular cell, a hotspot, or other types of cellular cells, or various combinations thereof. In some examples, the base station 105 may be mobile and therefore provide communication coverage for a mobile geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, and the overlapping geographic coverage areas 110 associated with different technologies may be supported by the same base station 105 or different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous LTE / LTE-A / LTE-A Pro or NR network, in which different types of base stations 105 provide coverage for various geographic coverage areas 110.

[0054] The term "cell" refers to a logical communication entity used to communicate with base station 105 (e.g., on a carrier), and may 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 may support multiple cells, and different cells may be configured according to different protocol types that may provide access to 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" may refer to a portion (e.g., a sector) of a geographic coverage area 110 on which the logical entity operates.

[0055] Each UE 115 can be dispersed throughout the wireless communication system 100, and each UE 115 can be stationary or mobile. UE 115 can also be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable term, wherein "device" can also be referred to as a unit, a station, a terminal, or a client. UE 115 can also be a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 can also refer to a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or an MTC device, etc., which can be implemented in various items (such as electrical appliances, vehicles, meters, etc.).

[0056] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or with a base station 105 without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay the information to a central server or application, which may utilize the information or present the information to a person interacting with the program or application. Some UEs 115 may be designed to collect information or implement automated behavior of machines. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, health care monitoring, field survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.

[0057] Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication may be performed with a reduced peak rate. Other power saving techniques for UE 115 include entering a power saving "deep sleep" mode when not engaged in active communications, or operating over a limited bandwidth (e.g., in accordance with narrowband communications). In some cases, UE 115 may be designed to support critical functions (e.g., mission critical functions), and the wireless communication system 100 may be configured to provide ultra-reliable communications for these functions.

[0058] In some cases, UE 115 may also be able to communicate directly with other UE 115 (e.g., using a peer-to-peer (P2P) or device-to-device (D2D) protocol). One or more UEs in a group of UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in the group may be outside the geographic coverage area 110 of the base station 105, or may not be able to receive transmissions from the base station 105 for other reasons. In some cases, each group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, in which each UE 115 transmits to each other UE 115 in the group. In some cases, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between each UE 115 without involving the base station 105.

[0059] The base stations 105 may communicate with the core network 130 and with each other. For example, the base stations 105 may interface with the core network 130 via a backhaul link 132 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 may communicate with each other over a backhaul link 134 (e.g., via X2, Xn, or other interfaces) directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130).

[0060] 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 layer (e.g., control plane) functions such as mobility, authentication, and bearer management of UEs 115 served by base stations 105 associated with the EPC. User IP packets may be delivered through the S-GW, which itself may be connected to the P-GW. The P-GW may provide IP address allocation and other functions. The P-GW may be connected to network operator IP services. Operator IP services may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or packet switched (PS) streaming services.

[0061] At least some network devices (such as base stations 105) may include subcomponents, such as access network entities, which may be examples of access node controllers (ANCs). Each access network entity may communicate with each UE 115 through a number of other access network transport entities, which may be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). In some configurations, the various functions of each access network entity or base station 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or merged into a single network device (e.g., base station 105).

[0062] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). In general, the 300 MHz to 3 GHz region is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths are in the range of from about 1 decimeter to 1 meter long. 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 services to UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 km) compared to transmission using lower frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0063] The wireless communication system 100 may also operate in the Super High Frequency (SHF) region using frequency bands from 3 GHz to 30 GHz, also known as centimeter bands. The SHF region includes frequency bands that may be opportunistically used by devices that may be able to tolerate interference from other users, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band.

[0064] The wireless communication system 100 may also operate in the extremely high frequency (EHF) division of the spectrum (e.g., from 30 GHz to 300 GHz), which is also referred to as the millimeter band. In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antenna of the corresponding device may be even smaller and more closely spaced than the UHF antenna. In some cases, this may facilitate the use of antenna arrays within the UE 115. However, the propagation of EHF transmissions may be subject to even greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The technology disclosed herein may be adopted across transmissions using one or more different frequency divisions, and the use of frequency bands specified across these frequency divisions may differ by country or regulatory agency.

[0065] In some cases, the wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as a 5 GHz ISM band). When operating in an unlicensed radio frequency spectrum band, wireless devices (such as base stations 105 and UE 115) may employ LBT procedures to ensure that the frequency channel is clear before transmitting data. In some cases, operations in unlicensed bands may be based on carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in licensed bands. Operations in unlicensed spectrum may include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or a combination of these. Duplexing in unlicensed spectrum may be based on frequency division duplexing (FDD), time division duplexing (TDD), or a combination of the two.

[0066] In some examples, the base station 105 or the UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. For example, the wireless communication system 100 may use a transmission scheme between a transmitting device (e.g., the base station 105) and a receiving device (e.g., the UE 115), wherein the transmitting device is equipped with multiple antennas and the receiving device is equipped with one or more antennas. MIMO communication may employ multipath signal propagation to increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers, which may be referred to as spatial multiplexing. For example, the transmitting device may transmit multiple signals via different antennas or different antenna combinations. Similarly, the receiving device may receive multiple signals via different antennas or different antenna combinations. Each of these multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams. Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0067] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a base station 105 or a 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 may be achieved by combining signals communicated via antenna elements of an antenna array so that signals propagating at a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements may include the transmitting device or the receiving device applying a particular amplitude and phase shift to the signal carried via each antenna element associated with the device. Adjustments associated with each antenna element may 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).

[0068] In one example, the base station 105 may use multiple antennas or antenna arrays to perform beamforming operations for directional communication with the UE 115. For example, some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the base station 105 in different directions, which may include a signal being transmitted according to different beamforming weight sets associated with different transmission directions. The transmissions in different beam directions may be used (e.g., by the base station 105 or a receiving device, such as the UE 115) to identify the beam direction used by the base station 105 for subsequent transmission and / or reception.

[0069] Some signals, such as data signals associated with a particular recipient device, may be transmitted by base station 105 in a single beam direction (e.g., a direction associated with a recipient device, such as UE 115). In some examples, a beam direction associated with transmissions along a single beam direction may be determined based at least in part on signals transmitted in different beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions, and UE 115 may report to base station 105 an indication of the signals received by it with the highest signal quality or other acceptable signal quality. Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may use similar techniques for transmitting signals multiple times in different directions (e.g., for identifying a beam direction used by UE 115 for subsequent transmission or reception) or for transmitting signals in a single direction (e.g., for transmitting data to a recipient device).

[0070] A receiving device (e.g., UE 115, which may be an example of a mmW receiving device) may try multiple receive beams when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105. For example, the receiving device may try multiple receive directions by receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different receive beamforming weight sets 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 along a single beam direction (e.g., when receiving a data signal). A single receive beam may be aligned on a beam direction determined based at least in part 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).

[0071] In some cases, the antennas of a base station 105 or a UE 115 may be located within one or more antenna arrays that may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some cases, the antennas or antenna arrays associated with a base station 105 may be located at different geographic locations. A base station 105 may have an antenna array having several rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with a UE 115. Similarly, a UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations.

[0072] In some cases, the wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, the communication of the bearer or packet data convergence protocol (PDCP) layer may be IP-based. The radio link control (RLC) layer may perform packet segmentation and reassembly to communicate on a logical channel. The media access control (MAC) layer may perform priority handling and multiplex logical channels into transport channels. The MAC layer may also use a hybrid automatic repeat request (HARQ) to provide retransmission of the MAC layer, thereby improving link efficiency. In the control plane, the radio resource control (RRC) protocol layer may provide the establishment, configuration and maintenance of an RRC connection for a radio bearer that supports user plane data between UE115 and base station 105 or core network 130. At the physical layer, transport channels may be mapped to physical channels.

[0073] In some cases, UE 115 and base station 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 can 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 in a specific time slot for data received in a previous symbol in the time slot. In other cases, the device may provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0074] The time interval in LTE or NR can be represented by a basic time unit (which may refer to a sampling period T, for example). s =1 / 30,720,000 seconds). The time intervals of the communication resources may be organized according to radio frames each having a duration of 10 milliseconds (ms), where the frame period may be expressed as T f =307,200T s . A radio frame may be identified by a system frame number (SFN) ranging from 0 to 1023. Each frame may include 10 subframes numbered from 0 to 9, and each subframe may have a duration of 1 ms. A subframe may be further divided into 2 slots, each slot having a duration of 0.5 ms, and each slot may contain 6 or 7 modulation symbol periods (e.g., depending on the length of a cyclic prefix prepended to each symbol period). Excluding the cyclic prefix, each symbol period may contain 2048 sampling periods. In some cases, a subframe may be the minimum scheduling unit of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In other cases, the minimum scheduling unit of the wireless communication system 100 may be shorter than a subframe or may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI) or in a selected component carrier using sTTI).

[0075] In some wireless communication systems, a time slot may be further divided into a plurality of mini-slots containing one or more symbols. In some instances, a symbol of a mini-slot or a mini-slot may be the minimum scheduling unit. For example, each symbol may vary in duration depending on the subcarrier spacing or the operating frequency band. Further, some wireless communication systems may implement time slot aggregation, wherein a plurality of time slots or mini-slots are aggregated together and used for communication between UE 115 and base station 105.

[0076] The term "carrier" refers to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communications on the communication link 125. For example, a carrier of the communication link 125 may include a portion of a radio frequency spectrum band that operates according to a physical layer channel for a given radio access technology. Each physical layer channel may carry user data, control information, or other signaling. A carrier may be associated with a predefined frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be located according to a channel grid for discovery by a UE 115. A carrier may be downlink or uplink (e.g., in FDD mode), or configured to carry downlink communications and uplink communications (e.g., in TDD mode). In some examples, a signal waveform transmitted on a carrier may include multiple subcarriers (e.g., using a multi-carrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)).

[0077] For different radio access technologies (e.g., LTE, LTE-A, LTE-A Pro, NR), the organizational structure of the carrier can be different. For example, the communication on the carrier can be organized according to TTIs or time slots, each of which can include user data and control information or signaling to support decoding of the user data. The carrier can also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc.) and control signaling to coordinate the operation of the carrier. In some examples (e.g., in a carrier aggregation configuration), the carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers.

[0078] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier, for example, using a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. In some examples, control information transmitted in a physical control channel may 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).

[0079] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a plurality of predetermined bandwidths of a carrier for a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). In some examples, each served UE 115 may be configured to operate on part or all of the carrier bandwidth. In other examples, some UEs 115 may be configured to operate using a narrowband protocol type associated with a predefined portion or range (e.g., a set of subcarriers or RBs) within a carrier (e.g., an "in-band" deployment of a narrowband protocol type).

[0080] In a system using MCM technology, a resource element may include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme). Thus, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate of UE 115 can be. In a MIMO system, wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and space resources (e.g., space layers), and the use of multiple space layers may further increase the data rate of communication with UE 115.

[0081] A device (e.g., base station 105 or UE 115) of wireless communication system 100 may have a hardware configuration that supports communication on a particular carrier bandwidth, or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, wireless communication system 100 may include base stations 105 and / or UEs 115 that support simultaneous communication via carriers associated with more than one different carrier bandwidths.

[0082] The wireless communication system 100 may support communication with the UE 115 on multiple cells or carriers, a feature that may be referred to as carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both FDD and TDD component carriers.

[0083] In some cases, the wireless communication system 100 may utilize an enhanced component carrier (eCC). An 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, an 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). An eCC may also be configured for use in an unlicensed spectrum or a 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 not capable of monitoring the entire carrier bandwidth or is otherwise configured to use a limited carrier bandwidth (e.g., to save power).

[0084] In some cases, an eCC may utilize a different symbol duration than other component carriers, which may include using a reduced symbol duration compared to the symbol duration of other component carriers. A shorter symbol duration may be associated with an increased spacing between adjacent subcarriers. A device utilizing an eCC (such as a UE 115 or a base station 105) may transmit a wideband 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). A TTI in an eCC may include one or more symbol periods. In some cases, the TTI duration (i.e., the number of symbol periods in a TTI) may be variable.

[0085] The wireless communication system 100 may be an NR system that may utilize any combination of licensed, shared, and unlicensed spectrum bands, etc. The flexibility of eCC symbol duration and subcarrier spacing may allow eCC to be used across multiple spectrums. In some examples, NR shared spectrum may improve spectrum utilization and spectrum efficiency, particularly through dynamic vertical (e.g., across frequency domain) and horizontal (e.g., across time domain) sharing of resources.

[0086] Some wireless communication systems (such as wireless communication system 100) can use DRX cycles to improve power usage and battery performance of devices. In some systems, UE 115 can monitor for control signals during configured monitoring opportunities. For example, UE 115 can monitor for wake-up signals during pre-wake-up gaps to determine whether the UE 115 has pending communications from a base station. If UE 115 detects a wake-up signal, the UE 115 can monitor for signaling during the "on duration" of the DRX cycle. If the UE does not detect a wake-up signal, the UE 115 may not monitor the on duration, but instead may remain in a low power state until the next pre-wake-up gap.

[0087] In some cases, the wake-up signal may be transmitted in the downlink control information. The wake-up signal may be scrambled using a power saving radio network temporary identifier (PS-RNTI). During wake-up signal detection, a reduced set of hardware may be activated at the UE 115 for PDCCH processing to detect the wake-up signal.

[0088] In some cases, the wake-up signal may be configured based on the search space configuration. For example, the search space information element may include parameters or configurations for the wake-up signal. Some configurations, such as configurations for monitoring symbols within a time slot and time slot periodicity and offset monitoring, may be used to configure the wake-up signal. In some cases, multiple opportunities may be configured for wake-up signal monitoring within the pre-wake-up window.

[0089] The wireless communication system 100 may support a wideband control resource set for a UE. For a control resource set configuration in a serving cell having a carrier bandwidth greater than an LBT bandwidth, a search space set configuration associated with the control resource set may have multiple monitoring locations in the frequency domain. For example, the search space for the control resource set may be split into multiple LBT bandwidths. When the system bandwidth has multiple LBT bandwidths, the UE 115 may search up to as many LBT bandwidths to detect a wake-up signal.

[0090] By implementing the techniques described herein, when a UE 115 is configured with multiple LBT bandwidths, the UE 115 may be configured with enough blind hypotheses to reliably detect control signals (such as wake-up signals). In some cases, the UE 115 may be configured to use at least as many blind hypotheses as the existing LBT bandwidths for control signal detection. In some cases, the UE 115 may monitor a subset of the LBT bandwidth across different configured monitoring opportunities, which may reduce the number of blind hypotheses in each opportunity. Additional techniques for associating an LBT bandwidth with a beam or TCI state are described.

[0091] Figure 2 An example of a wireless communication system 200 for supporting broadband control signal transmission according to aspects of the present disclosure is illustrated. In some examples, the wireless communication system 200 can implement aspects of the wireless communication system 100. The wireless communication system 200 can include a UE 115-a and a base station 105-a, which can be referenced Figure 1 Respective examples of described UEs 115 and base stations 105. In some cases, the wireless communication system 200 may support unlicensed or shared spectrum communications.

[0092] Some devices in the wireless communication system 200, such as the UE 115-a, may use the DRX cycle 205 to improve power usage efficiency and battery performance. For example, the UE 115-a may monitor during the pre-wake-up gap 215 for the wake-up signal 210 to determine whether the UE 115-a has a pending communication from the base station 105-a. If the UE 115-a does not detect the wake-up signal 210, the UE 115-a may not monitor the on duration 220, but instead may remain in a low power state until the next pre-wake-up gap 215. For example, in the DRX cycle 205-a, the UE 115-a does not detect the wake-up signal 210 during the pre-wake-up gap 215-a, so the UE 115-a remains in the low power state within the on duration 220-a.

[0093] If the UE 115-a does detect the wake-up signal 210, the UE 115-a can monitor during the on duration 220 of the DRX cycle 205 for signaling. For example, the UE 115-a can detect the wake-up signal 210 during the pre-wake-up gap 215-b of the DRX cycle 205-b. Therefore, the UE 115-a can monitor within the duration 220-b based on detecting the wake-up signal 210. The base station 105-a can send control information that schedules the UE 115-a for data communication. Once the UE 115-a receives downlink control channel signaling (e.g., physical downlink control channel (PDCCH) signaling), the UE 115-a can start an inactivity timer. Once the inactivity timer expires (e.g., when the UE 115-a does not receive any additional PDCCH), the UE 115-a can enter a low power state again.

[0094] In some wireless systems, to provide additional power savings, the UE 115 may configure a limited number of downlink control channel hypotheses for wake-up signals, which may improve the detection rate and reduce the processing power required to detect the wake-up signals by the UE 115. For example, some systems support only one or two PDCCH hypotheses for wake-up signals to save power.

[0095] The wireless communication system 200 may support configuring a broadband control resource set for the UE 115. In some cases, the control resource set may be limited to the LBT bandwidth. For a control resource set configuration in a serving cell having a carrier bandwidth greater than the LBT bandwidth, a search space set configuration associated with the control resource set may have multiple monitoring locations in the frequency domain. For example, the search space for the control resource set may be split into multiple LBT bandwidths. The physical resource blocks allocated in the control resource set configuration by the base station 105 (e.g., based on the value of a parameter such as "frequency domain resources") may be limited to one of the LBT bandwidths within the bandwidth portion corresponding to the control resource set.

[0096] In the search space set configuration associated with the control resource set, each of the one or more monitoring positions in the frequency domain may correspond to and be limited within the LBT bandwidth. In some cases, one or more monitoring positions may have the same control resource set parameters instead of frequency domain resource allocation pattern parameters. For example, each monitoring position may have a different frequency domain resource allocation pattern configuration. In some cases, the resources within the LBT bandwidth containing PDCCH candidates may be referred to as an image. The search space set may be mapped in an image and limited within the LBT bandwidth. For example, each PDCCH candidate may be limited within a given frequency domain position.

[0097] When the system bandwidth has multiple LBT bandwidths, UE 115 can search up to as many LBT bandwidths to detect wake-up signals. PDCCH candidates can be limited to the LBT bandwidth, so base station 105 can obtain access to any of the LBT bandwidths and transmit wake-up signals on the LBT bandwidth. UE 115 can search PDCCH candidates according to one or more blind decoding hypotheses to obtain wake-up signals. Blind hypotheses can correspond to possible coding configurations or resource assignments for signals. For example, the area of ​​the control resource set can be indicated to UE 115, rather than the specific position or resource size of the signal. Therefore, UE 115 can attempt to decode at one or more positions within the area (these positions are blind hypotheses) to obtain signals. Some systems may not provide enough downlink control channel blind hypotheses for UE 115 to detect wake-up signals. If UE 115 cannot detect the wake-up signal, the UE 115 may lose control or data information.

[0098] By implementing the techniques described herein, when a UE 115 (such as UE 115-a) is configured with multiple LBT bandwidths, the UE 115 may be configured with sufficient blind hypotheses to reliably detect a wake-up signal. In some cases, the UE 115 may be configured to use at least as many blind hypotheses as there are LBT bandwidths for wake-up signal detection. In order to ensure that the UE 115-a can detect the wake-up signal when the base station 105-a has media access to any LBT bandwidth in the system bandwidth, the number of blind hypotheses may not be less than the number of LBT bandwidths. The UE 115-a may then search each LBT bandwidth for the wake-up signal, attempting to decode a candidate control channel in each LBT bandwidth based on at least one of the blind hypotheses to obtain the wake-up signal.

[0099] In some cases, UE 115-a may monitor a subset of the LBT bandwidth across different configured wake-up time monitoring occasions, which may reduce the number of blind hypotheses in each occasion. For example, when UE 115-a is configured for multiple time domain occasions for wake-up signal monitoring, each occasion may correspond to a different monitoring location in the frequency domain.

[0100] Additional techniques for associating LBT bandwidths with beams or TCI states are described. In some cases, multiple transmit receive points (TRPs) may be used to improve downlink signaling reliability. Thus, different LBT bandwidths may be associated with different TCI states (which may correspond to different TRPs). For example, a first LBT bandwidth may correspond to a first TCI state, and a second LBT bandwidth may correspond to a second TCI state.

[0101] In some cases, UE 115 may also be configured with a smaller number of blind hypotheses than the LBT bandwidth for other control channels. For example, UE 115 may be configured with more LBT bandwidth than blind decoding for downlink control information with DCI format 2_0 and channel occupancy time indication (e.g., channel occupancy time system information). In an example, UE 115 may be configured with four LBT bandwidths, but UE 115 may be configured to perform three blind decodings to detect channel occupancy time system information. Therefore, UE 115 may also support techniques for time-varying frequency locations of other types of downlink control information.

[0102] Figure 3 An example of an LBT wideband configuration 300 that supports wideband control signaling in accordance with aspects of the present disclosure is illustrated. In some examples, the LBT bandwidth configuration 300 can implement aspects of the wireless communication system 100.

[0103] The control resource set for the wake-up signal of the UE 115 may have decoding candidates across multiple monitoring locations (e.g., LBT bandwidths 305) in the frequency domain. The UE 115 may then have multiple LBT bandwidths 305 to search to detect the wake-up signal. To ensure that the UE 115 is able to identify the wake-up signal when the serving base station 105 has access to any LBT bandwidth 305 within the system bandwidth, the UE 115 may be configured with at least as many blind hypotheses for wake-up signal detection.

[0104] For example, the UE 115 may be configured with K LBT bandwidths 305, from LBT bandwidth 0 305-a to LBT bandwidth K 305-k. The UE 115 may then be configured with M blind hypotheses for wake-up signal detection, where M ≥ K. At least wake-up signal candidate 0 310-a may be in LBT bandwidth 0 305-a, and at least wake-up signal candidate M 310-m may be in LBT bandwidth K 305-k. In some cases, there may be multiple wake-up signal candidates 310 in each LBT bandwidth 305.

[0105] Figure 4 An example of an LBT broadband configuration 400 supporting broadband control signal transmission according to various aspects of the present disclosure is illustrated. In some examples, the LBT bandwidth configuration 400 can implement various aspects of the wireless communication system 100. A control resource set for a wake-up signal for a UE 115 can have decoding candidates across multiple monitoring locations (e.g., LBT bandwidths 405) in the frequency domain. The UE 115 can then have multiple LBT bandwidths 405 to search to detect the wake-up signal. To ensure that the UE 115 is able to identify the wake-up signal when the serving base station 105 has access to any LBT bandwidth 405 within the system bandwidth, the UE 115 can be configured with at least as many blind hypotheses for wake-up signal detection.

[0106] In one example, UE 115 may be configured with three LBT bandwidths 405, including LBT bandwidth 0 405-a, LBT bandwidth 1 405-b, and LBT bandwidth 2 405-c. UE 115 may also be configured with at least three wake-up signal candidates. In order to reduce the number of PDCCH decodings performed by UE 115 at one time, different LBT bandwidths 405 may be associated with different time domain opportunities.

[0107] For example, at a first opportunity 410, UE 115 may monitor image 415-a on LBT bandwidth 405-a and image 415-b on LBT bandwidth 405-b for a wake-up signal. If UE 115 does not detect a wake-up signal, then at a second opportunity 420, UE 115 may monitor image 425-a on LBT bandwidth 405-b and image 425-b on LBT bandwidth 405-c. If UE 115 still does not detect a wake-up signal, then UE 115 may monitor image 435-a on LBT bandwidth 405-a and image 435-b on LBT bandwidth 405-c at a third opportunity 430. Thus, LBT bandwidth 405-a and LBT bandwidth 405-b can be associated with a first opportunity 410, LBT bandwidth 405-b and LBT bandwidth 405-c can be associated with a second opportunity 420, and LBT bandwidth 405-a and LBT bandwidth 405-c can be associated with a third opportunity 430.

[0108] By associating subsets of the LBT bandwidth 405 with different monitoring opportunities, the number of blind hypotheses in each opportunity can be minimized. Therefore, UEs 115 with a smaller number of blind hypotheses can still support multiple LBT bandwidths. These UEs 115 can still achieve frequency domain diversity across multiple LBT bandwidths on multiple wake-up signal opportunities. In some cases, the monitoring opportunities and LBT bandwidths can be configured by the base station 105, such as when the base station 105 configures a control resource set for the UE 115.

[0109] In some examples, the base station 105 can utilize multiple TRPs to improve downlink signaling reliability. For example, the base station 105 or another network controller or network entity can send downlink signaling for the UE 115 from different TRPs, which may be in different directions from the UE 115. Therefore, different LBT bandwidths 405 can be further associated with different TCI states. Different TCI states can correspond to different beams, or different TRPs in different directions. For example, the LBT bandwidth 405-a can be associated with a first TCI state (e.g., TCI1), the LBT bandwidth 405-b can be associated with a second TCI state (e.g., TCI2), and the LBT bandwidth 405-c can be associated with a third TCI state (e.g., TCI3). In one example, at a first timing 410, UE 115 may monitor LBT bandwidth 405-a using a first beam associated with a first TCI state for a wake-up signal from a first TRP, and UE 115 may monitor LBT bandwidth 405-b using a second beam associated with a second TCI state for a wake-up signal from a second TRP.

[0110] In some cases, other types of downlink control information may be configured to different subsets of LBT bandwidth 405 across different monitoring opportunities. For example, downlink control information or channel occupancy time system information message with format 2_0 may be configured to be transmitted according to time-varying frequency position. For example, at the first opportunity 410, UE 115 may monitor image 415-a on LBT bandwidth 405-a and image 415-b on LBT bandwidth 405-b to find downlink control information. If UE 115 does not detect downlink control information, then at the second opportunity 420, UE 115 may monitor image 425-a on LBT bandwidth 405-b and image 425-b on LBT bandwidth 405-c to find downlink control information. If UE 115 still does not detect downlink control information, UE 115 may monitor image 435 - a on LBT bandwidth 405 - a and image 435 - b on LBT bandwidth 405 - c at a third opportunity 430 to look for downlink transmissions.

[0111] Figure 5 An example of a process flow 500 for supporting broadband control signal transmission according to aspects of the present disclosure is illustrated. In some examples, the process flow 500 can implement aspects of the wireless communication system 100. The process flow 500 can include a UE 115-b and a base station 105-b, which can be respective examples of a UE 115 and a base station 105 as described herein. The UE 115-b can be configured with a DRX cycle as described herein. The UE 115-b can monitor during a pre-wake-up duration of the DRX cycle for a wake-up signal to determine whether the base station 105-b has a pending downlink control channel transmission for the UE 115-b.

[0112] At 505, UE 115-b may receive a configuration for multiple LBT bandwidths from base station 105b. Each LBT bandwidth may be associated with one or more downlink control channel candidates for a search space for a control resource set. In some cases, the configuration may be included with the configuration of the control resource set for UE 115-b.

[0113] At 510, UE 115-b may monitor one or more LBT bandwidths during a wake-up signal period to look for a wake-up signal from base station 105-b based on a set of blind hypotheses associated with the LBT bandwidths. The total number of blind hypotheses may be equal to or greater than the total number of LBT bandwidths in the plurality of LBT bandwidths. In some cases, UE 115-b may monitor a first subset of LBT bandwidths during a first monitoring opportunity in a wake-up signal period based on a first subset of blind hypotheses; and UE 115-b may monitor a second subset of LBT bandwidths during a second monitoring opportunity in the wake-up signal period based on a second subset of blind hypotheses. For example, different LBT bandwidths may be associated with different monitoring opportunities, as described with reference to FIG. Figure 4 At 515, base station 105-b may, in some cases, transmit a wake-up signal to UE 115-b during a wake-up signal period of UE 115-b.

[0114] At 520, UE 115-b may determine whether to wake up and monitor the DRX duration based on detecting the wake-up signal. For example, UE 115-b may detect the wake-up signal based on monitoring; and UE 115-b may wake up and monitor downlink control channel signals during the DRX duration (e.g., the on duration of the DRX cycle). At 525, UE 115-b may then monitor for downlink control channel signaling from base station 105-b. If UE 115-b determines that a wake-up signal is not received during the wake-up signal period, UE 115-b may remain in a low power state for the DRX duration.

[0115] Figure 6 A block diagram 600 of a device 605 supporting broadband control signal transmission according to aspects of the present disclosure is shown. The device 605 may be an example of aspects of a UE 115 as described herein. The device 605 may include a receiver 610, a communication manager 615, and a transmitter 620. The device 605 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0116] The receiver 610 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 broadband control signal transmission, etc.). The information may be passed to other components of the device 605. The receiver 610 may be a reference Fig. 9 Examples of aspects of the described transceiver 920. The receiver 610 may utilize a single antenna or a collection of antennas.

[0117] The communication manager 615 may receive a configuration for a listen-before-talk bandwidth set from a base station, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set; and monitor one or more listen-before-talk bandwidths in the listen-before-talk bandwidth set based on a set of blind hypotheses associated with the listen-before-talk bandwidths, wherein a total number of blind hypotheses in the set of blind hypotheses is equal to or greater than a total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set. The communication manager 615 may be an example of aspects of the communication manager 910 described herein.

[0118] The communication manager 615 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 615 or its subcomponents may be performed by a general purpose processor, a DSP, an application specific integrated circuit (ASIC), an FPGA or other programmable logic device designed to perform the functions described in the present disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0119] The communication manager 615 or its subcomponents may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 615 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 615 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0120] The transmitter 620 can transmit signals generated by other components of the device 605. In some examples, the transmitter 620 can be co-located with the receiver 610 in a transceiver module. For example, the transmitter 620 can be a reference Fig. 9 Examples of aspects of the described transceiver 920. The transmitter 620 may utilize a single antenna or a collection of antennas.

[0121] Figure 7 A block diagram 700 of a device 705 supporting broadband control signal transmission according to aspects of the present disclosure is shown. The device 705 may be an example of aspects of the device 605 or UE 115 as described herein. The device 705 may include a receiver 710, a communication manager 715, and a transmitter 730. The device 705 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0122] Receiver 1010 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 broadband control signal transmission, etc.). The information may be passed to other components of device 705. Receiver 710 may be a reference Fig. 9 Examples of aspects of the described transceiver 920. The receiver 710 may utilize a single antenna or a collection of antennas.

[0123] The communication manager 715 may be an example of aspects of the communication manager 615 as described herein. The communication manager 715 may include an LBT bandwidth configuration component 720 and an LBT bandwidth monitoring component 725. The communication manager 715 may be an example of aspects of the communication manager 910 as described herein.

[0124] The LBT bandwidth configuration component 720 can receive a configuration for a listen-before-talk bandwidth set from a base station, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set.

[0125] The LBT bandwidth monitoring component 725 can monitor one or more listen-before-talk bandwidths in a listen-before-talk bandwidth set based on a set of blind hypotheses associated with the listen-before-talk bandwidth, wherein the total number of blind hypotheses in the set of blind hypotheses is equal to or greater than the total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set.

[0126] The transmitter 730 may transmit signals generated by other components of the device 705. In some examples, the transmitter 730 may be co-located with the receiver 710 in a transceiver module. For example, the transmitter 730 may be a reference Fig. 9 Examples of aspects of the described transceiver 920. The transmitter 730 may utilize a single antenna or a collection of antennas.

[0127] Figure 8 A block diagram 800 of a communication manager 805 supporting broadband control signal transmission according to aspects of the present disclosure is shown. The communication manager 805 can be an example of aspects of the communication manager 615, the communication manager 715, or the communication manager 910 described herein. The communication manager 805 can include an LBT bandwidth configuration component 810, an LBT bandwidth monitoring component 815, a monitoring determination component 820, and a beamformed monitoring component 825. Each of these modules can communicate with each other directly or indirectly (e.g., via one or more buses).

[0128] The LBT bandwidth configuration component 810 may receive a configuration for a listen-before-talk bandwidth set from a base station, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set.

[0129] The LBT bandwidth monitoring component 815 can monitor one or more listen-before-talk bandwidths in the listen-before-talk bandwidth set based on a set of blind hypotheses associated with the listen-before-talk bandwidth, wherein a total number of blind hypotheses in the set of blind hypotheses is equal to or greater than a total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set. In some examples, the LBT bandwidth monitoring component 815 can monitor the one or more listen-before-talk bandwidths during a wake-up signal period to look for a wake-up signal from the base station.

[0130] In some examples, the LBT bandwidth monitoring component 815 may determine whether to wake up and monitor the DRX duration based on detecting the wake-up signal.

[0131] In some examples, the LBT bandwidth monitoring component 815 can monitor the first subset of the listen-before-talk bandwidth set during the first monitoring opportunity based on the first subset of the blind hypothesis set.

[0132] In some examples, the LBT bandwidth monitoring component 815 can monitor a second subset of the listen-before-talk bandwidth set during a second monitoring opportunity based on the second subset of the blind hypothesis set.

[0133] In some examples, the LBT bandwidth monitoring component 815 may receive an indication of a first subset of the listen-before-talk bandwidth set and a second subset of the listen-before-talk bandwidth set from the base station.

[0134] In some examples, the LBT bandwidth monitoring component 815 can receive a control resource set configuration in conjunction with a configuration for the listen-before-talk bandwidth set, the control resource set configuration including an indication of a first subset of the listen-before-talk bandwidth set and a second subset of the listen-before-talk bandwidth set. In some examples, the LBT bandwidth monitoring component 815 can monitor for downlink control information from the base station. In some examples, the downlink control information can include a wake-up signal.

[0135] The monitoring determination component 820 may detect the wake-up signal based on the monitoring. In some examples, the monitoring determination component 820 may monitor for a downlink control channel signal during the DRX duration based on the detected wake-up signal. In some examples, the monitoring determination component 820 may determine that the wake-up signal was not received during the wake-up signal period based on the monitoring. In some examples, the monitoring determination component 820 may remain in a low power state within the DRX duration.

[0136] The beamformed monitoring component 825 may monitor a first listen-before-talk bandwidth in the listen-before-talk bandwidth set using a first beam. In some examples, the beamformed monitoring component 825 may monitor a second listen-before-talk bandwidth in the listen-before-talk bandwidth set using a second beam. In some examples, the beamformed monitoring component 825 may receive a TCI for each listen-before-talk bandwidth in the listen-before-talk bandwidth set from the base station. In some examples, the beamformed monitoring component 825 may determine the first beam and the second beam, respectively, based on the TCI received for each of the first listen-before-talk bandwidth and the second listen-before-talk bandwidth.

[0137] Fig. 9 A diagram of a system 900 including a device 905 supporting broadband control signal transmission according to aspects of the present disclosure is shown. The device 905 may be an example of a device 605, a device 705, or a UE 115 as described herein or include a component of the device 605, the device 705, or the UE 115. The device 905 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a communication manager 910, an I / O controller 915, a transceiver 920, an antenna 925, a memory 930, and a processor 940. These components may be in electronic communication via one or more buses (e.g., a bus 945).

[0138] The communication manager 910 may receive a configuration for a listen-before-talk bandwidth set from a base station, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates of a search space for a control resource set; and monitor one or more listen-before-talk bandwidths in the listen-before-talk bandwidth set based on a blind hypothesis set associated with the listen-before-talk bandwidth, wherein a total number of blind hypotheses in the blind hypothesis set is equal to or greater than a total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set.

[0139] I / O controller 915 can manage input and output signals of device 905. I / O controller 915 can also manage peripheral devices that are not integrated into device 905. In some cases, I / O controller 915 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 915 can utilize an operating system, such as Or another known operating system. In other cases, I / O controller 915 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 915 may be implemented as part of a processor. In some cases, a user may interact with device 905 via I / O controller 915 or via hardware components controlled by I / O controller 915.

[0140] The transceiver 920 may communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 920 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 920 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0141] In some cases, a wireless device may include a single antenna 925. However, in some cases, the device may have more than one antenna 925, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0142] The memory 930 may include RAM and ROM. The memory 930 may store computer-readable, computer-executable code 935 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, the memory 930 may include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0143] The processor 940 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 940 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 940. The processor 940 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 930) to cause the device 905 to perform various functions (e.g., functions or tasks that support broadband control signal transmission).

[0144] The code 935 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 935 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 935 may not be directly executed by the processor 940, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0145] Fig.10 A block diagram 1000 of a device 1005 supporting broadband control signal transmission according to aspects of the present disclosure is shown. The device 1005 may be an example of aspects of a base station 105 as described herein. The device 1005 may include a receiver 1010, a communication manager 1015, and a transmitter 1020. 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).

[0146] Receiver 1010 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 broadband control signal transmission, etc.). The information may be passed to other components of device 1005. Receiver 1010 may be a reference Fig.13 Examples of various aspects of the described transceiver 1320. The receiver 1010 may utilize a single antenna or a collection of antennas.

[0147] The communication manager 1015 may transmit a configuration for a listen-before-talk bandwidth set to the UE, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set; and transmit downlink control information on a listen-before-talk bandwidth in the listen-before-talk bandwidth set based on the UE being configured with a total number of blind hypotheses in the blind hypothesis set that is equal to or greater than the total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set. The communication manager 1015 may be an example of aspects of the communication manager 1310 described herein.

[0148] The communication manager 1015 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 1015 or its subcomponents may be performed by a general purpose processor, a DSP, an application specific integrated circuit (ASIC), an FPGA or other programmable logic device designed to perform the functions described in this disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0149] The communication manager 1015 or its subcomponents may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 1015 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 1015 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0150] The transmitter 1020 may transmit signals generated by other components of the device 1005. In some examples, the transmitter 1020 may be co-located with the receiver 1010 in a transceiver module. For example, the transmitter 1020 may be a reference Fig.13 Examples of aspects of the described transceiver 1320. The transmitter 1020 may utilize a single antenna or a collection of antennas.

[0151] Fig.11 A block diagram 1100 of a device 1105 supporting broadband control signal transmission according to aspects of the present disclosure is shown. The device 1105 may be an example of aspects of a device 1105 or base station 105 as described herein. The device 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1130. The device 1105 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0152] The receiver 1110 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to broadband control signal transmission, etc.). The information may be passed to other components of the device 1105. The receiver 1110 may be a reference Fig.13 Examples of aspects of the described transceiver 1320. The receiver 1110 may utilize a single antenna or a collection of antennas.

[0153] The communication manager 1115 can be an example of aspects of the communication manager 1015 as described herein. The communication manager 1115 can include an LBT bandwidth configuration component 1120 and an LBT bandwidth transmission component 1125. The communication manager 1115 can be an example of aspects of the communication manager 1310 described herein.

[0154] The LBT bandwidth configuration component 1120 can transmit a configuration for a listen-before-talk bandwidth set to the UE, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set.

[0155] The LBT bandwidth transmission component 1125 can transmit downlink control information on a listen-before-talk bandwidth in the listen-before-talk bandwidth set based on the UE being configured with a total number of blind hypotheses in the blind hypothesis set that is equal to or greater than the total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set.

[0156] The transmitter 1130 may transmit signals generated by other components of the device 1105. In some examples, the transmitter 1130 may be co-located with the receiver 1110 in a transceiver module. For example, the transmitter 1130 may be a reference Fig.13 Examples of aspects of the described transceiver 1320. The transmitter 1130 may utilize a single antenna or a collection of antennas.

[0157] Fig.12A block diagram 1200 of a communication manager 1205 supporting broadband control signal transmission according to aspects of the present disclosure is shown. The communication manager 1205 can be an example of aspects of the communication manager 1015, the communication manager 1115, or the communication manager 1310 described herein. The communication manager 1205 can include an LBT bandwidth configuration component 1210, an LBT bandwidth transmission component 1215, a DRX duration component 1220, and a beamformed transmission component 1225. Each of these modules can communicate with each other directly or indirectly (e.g., via one or more buses).

[0158] The LBT bandwidth configuration component 1210 can transmit a configuration for a listen-before-talk bandwidth set to the UE, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set.

[0159] The LBT bandwidth transmission component 1215 can transmit downlink control information on a listen-before-talk bandwidth in the listen-before-talk bandwidth set based on the UE being configured with a total number of blind hypotheses in the blind hypothesis set that is equal to or greater than the total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set. In some examples, the LBT bandwidth transmission component 1215 can transmit a wake-up signal during a wake-up signal period of the UE.

[0160] In some examples, the LBT bandwidth transmission component 1215 may transmit the downlink control information during a first transmission opportunity on the listen-before-talk bandwidth based on a first listen-before-talk bandwidth subset of the listen-before-talk bandwidth set including a first subset of downlink control channel candidates. In some examples, the LBT bandwidth transmission component 1215 may transmit the downlink control information during a second transmission opportunity on the listen-before-talk bandwidth based on a second listen-before-talk bandwidth subset of the listen-before-talk bandwidth set including a second subset of downlink control channel candidates.

[0161] In some examples, the LBT bandwidth transmission component 1215 can transmit an indication of a first listen-before-talk bandwidth subset of the listen-before-talk bandwidth set and a second listen-before-talk bandwidth subset of the listen-before-talk bandwidth set. In some examples, the LBT bandwidth transmission component 1215 can transmit a control resource set configuration in conjunction with a configuration for the listen-before-talk bandwidth set, the control resource set configuration including an indication of a first listen-before-talk bandwidth subset of the listen-before-talk bandwidth set and a second listen-before-talk bandwidth subset of the listen-before-talk bandwidth set. The DRX duration component 1220 can transmit to the UE on the one or more listen-before-talk bandwidths during the DRX duration based on transmitting the wake-up signal.

[0162] The beamformed transmission component 1225 can transmit the downlink control information using a beam associated with the listen-before-talk bandwidth. In some examples, the beamformed transmission component 1225 can transmit a corresponding TCI state for each listen-before-talk bandwidth in the listen-before-talk bandwidth set, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with a corresponding beam based on the corresponding TCI state.

[0163] Fig.13 A diagram of a system 1300 including a device 1305 supporting broadband control signal transmission according to aspects of the present disclosure is shown. The device 1305 may be an example of a device 1005, a device 1105, or a base station 105 as described herein or include components of the above devices. The device 1305 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a communication manager 1310, a network communication manager 1315, a transceiver 1320, an antenna 1325, a memory 1330, a processor 1340, and an inter-station communication manager 1345. These components may be in electronic communication via one or more buses (e.g., bus 1350).

[0164] The communication manager 1310 may transmit a configuration for a listen-before-talk bandwidth set to the UE, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates of a search space for a control resource set; and transmit downlink control information on a listen-before-talk bandwidth in the listen-before-talk bandwidth set based on the UE being configured with a total number of blind hypotheses in the blind hypothesis set that is equal to or greater than the total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set.

[0165] The network communications manager 1315 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1315 may manage the delivery of data communications for client devices, such as one or more UEs 115.

[0166] The transceiver 1320 may communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1320 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1320 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0167] In some cases, a wireless device may include a single antenna 1325. However, in some cases, the device may have more than one antenna 1325, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0168] Memory 1330 may include RAM, ROM, or a combination thereof. Memory 1330 may store computer readable code 1335 including instructions that, when executed by a processor (e.g., processor 1340), cause the device to perform various functions described herein. In some cases, memory 1330 may include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0169] Processor 1340 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1340 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1340. Processor 1340 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1330) to cause device 1305 to perform various functions (e.g., functions or tasks that support broadband control signal transmission).

[0170] The inter-site communication manager 1345 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UE 115 in cooperation with other base stations 105. For example, the inter-site communication manager 1345 may coordinate scheduling of transmissions to UE 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-site communication manager 1345 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0171] The code 1335 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1335 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 1335 may not be directly executed by the processor 1340, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0172] Fig.14 1400 is a flowchart illustrating a method 1400 for supporting broadband control signal transmission according to aspects of the present disclosure. The operations of the method 1400 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1400 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0173] At 1405, the UE may receive a configuration for a listen-before-talk bandwidth set from a base station, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set. The operations of 1405 may be performed according to the methods described herein. In some examples, aspects of the operations of 1405 may be performed as described with reference to Figures 6 to 9 The described LBT bandwidth configuration component is implemented.

[0174] At 1410, the UE may monitor one or more listen-before-talk bandwidths in a listen-before-talk bandwidth set based on a set of blind hypotheses associated with the listen-before-talk bandwidth, wherein a total number of blind hypotheses in the set of blind hypotheses is equal to or greater than a total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set. The operations of 1410 may be performed according to the methods described herein. In some examples, aspects of the operations of 1410 may be performed as described with reference to Figures 6 to 9 The described LBT bandwidth monitoring component is performed.

[0175] Fig.15 1 is a flow chart illustrating a method 1500 for supporting broadband control signal transmission according to aspects of the present disclosure. The operations of the method 1500 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1500 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0176] At 1505, the UE may receive a configuration for a listen-before-talk bandwidth set from a base station, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be performed as described with reference to Figures 6 to 9 The described LBT bandwidth configuration component is implemented.

[0177] At 1510, the UE may monitor one or more listen-before-talk bandwidths in a listen-before-talk bandwidth set based on a set of blind hypotheses associated with the listen-before-talk bandwidth, wherein a total number of blind hypotheses in the set of blind hypotheses is equal to or greater than a total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed as described with reference to Figures 6 to 9 The described LBT bandwidth monitoring component is performed.

[0178] At 1515, the UE may monitor the one or more listen-before-talk bandwidths during the wake-up signal period to look for a wake-up signal from the base station. The operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be performed as described with reference to Figures 6 to 9 The described LBT bandwidth monitoring component is performed.

[0179] At 1520, the UE may determine whether to wake up and monitor the DRX duration based on detecting the wake-up signal. The operations of 1520 may be performed according to the methods described herein. In some examples, various aspects of the operations of 1520 may be performed as described with reference to Figures 6 to 9 The described LBT bandwidth monitoring component is performed.

[0180] Fig.16 1 is a flowchart illustrating a method 1600 for supporting broadband control signal transmission according to aspects of the present disclosure. The operations of the method 1600 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1600 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0181] At 1605, the UE may receive a configuration for a listen-before-talk bandwidth set from a base station, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set. The operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be performed as described with reference to Figures 6 to 9 The described LBT bandwidth configuration component is implemented.

[0182] At 1610, the UE may monitor one or more listen-before-talk bandwidths in a listen-before-talk bandwidth set based on a set of blind hypotheses associated with the listen-before-talk bandwidth, wherein a total number of blind hypotheses in the set of blind hypotheses is equal to or greater than a total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set. The operations of 1610 may be performed according to the methods described herein. In some examples, aspects of the operations of 1610 may be performed as described with reference to Figures 6 to 9 The described LBT bandwidth monitoring component is performed.

[0183] At 1615, the UE may monitor the one or more listen-before-talk bandwidths during the wake-up signal period to look for a wake-up signal from the base station. The operations of 1615 may be performed according to the methods described herein. In some examples, aspects of the operations of 1615 may be performed as described with reference to Figures 6 to 9The described LBT bandwidth monitoring component is performed.

[0184] At 1620, the UE may detect the wake-up signal based on the monitoring. The operations of 1620 may be performed according to the methods described herein. In some examples, aspects of the operations of 1620 may be performed as described with reference to Figures 6 to 9 The monitoring described determines the components to perform.

[0185] At 1625, the UE may monitor during the DRX duration to find a downlink control channel signal based on the detected wake-up signal. The operations of 1625 may be performed according to the methods described herein. In some examples, aspects of the operations of 1625 may be as described with reference to Figures 6 to 9 The monitoring described determines the components to perform.

[0186] Fig.17 1 is a flow chart illustrating a method 1700 for supporting broadband control signal transmission according to aspects of the present disclosure. The operations of the method 1700 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1700 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0187] At 1705, the UE may receive a configuration for a listen-before-talk bandwidth set from a base station, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set. The operations of 1705 may be performed according to the methods described herein. In some examples, aspects of the operations of 1705 may be performed as described with reference to Figures 6 to 9 The described LBT bandwidth configuration component is implemented.

[0188] At 1710, the UE may monitor one or more listen-before-talk bandwidths in a listen-before-talk bandwidth set based on a set of blind hypotheses associated with the listen-before-talk bandwidth, wherein a total number of blind hypotheses in the set of blind hypotheses is equal to or greater than a total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set. The operations of 1710 may be performed according to the methods described herein. In some examples, aspects of the operations of 1710 may be performed as described with reference to Figures 6 to 9 The described LBT bandwidth monitoring component is performed.

[0189] At 1715, the UE may monitor the one or more listen-before-talk bandwidths during the wake-up signal period to look for a wake-up signal from the base station. The operations of 1715 may be performed according to the methods described herein. In some examples, aspects of the operations of 1715 may be performed as described with reference to Figures 6 to 9 The described LBT bandwidth monitoring component is performed.

[0190] At 1720, the UE may determine, based on the monitoring, that the wake-up signal was not received during the wake-up signal period. The operations of 1720 may be performed according to the methods described herein. In some examples, aspects of the operations of 1720 may be performed as described with reference to Figures 6 to 9 The monitoring described determines the components to perform.

[0191] At 1725, the UE may remain in a low power state for the DRX duration. The operations of 1725 may be performed according to the methods described herein. In some examples, aspects of the operations of 1725 may be performed as described with reference to Figures 6 to 9 The monitoring described determines the components to perform.

[0192] Fig.18 1 is a flowchart illustrating a method 1800 for supporting broadband control signal transmission according to aspects of the present disclosure. The operations of the method 1800 may be implemented by the base station 105 or components thereof as described herein. For example, the operations of the method 1800 may be implemented by the base station 105 or components thereof as described herein. Figures 10 to 13 In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0193] At 1805, the base station may transmit to the UE a configuration for a listen-before-talk bandwidth set, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set. The operations of 1805 may be performed according to the methods described herein. In some examples, aspects of the operations of 1805 may be performed as described with reference to Figures 10 to 13 The described LBT bandwidth configuration component is implemented.

[0194] At 1810, the base station may transmit downlink control information on a listen-before-talk bandwidth in the listen-before-talk bandwidth set based on the UE being configured with a total number of blind hypotheses in the blind hypothesis set that is equal to or greater than the total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set. The operations of 1810 may be performed according to the methods described herein. In some examples, aspects of the operations of 1810 may be performed as described with reference to Figures 10 to 13 The described LBT bandwidth transmission component is implemented.

[0195] Fig.19 1 is a flow chart illustrating a method 1900 for supporting broadband control signal transmission according to aspects of the present disclosure. The operations of the method 1900 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1900 may be implemented by a base station 105 or components thereof as described herein. Figures 10 to 13 In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0196] At 1905, the base station may transmit to the UE a configuration for a listen-before-talk bandwidth set, wherein each listen-before-talk bandwidth in the listen-before-talk bandwidth set is associated with one or more downlink control channel candidates for a search space of a control resource set. The operations of 1905 may be performed according to the methods described herein. In some examples, aspects of the operations of 1905 may be performed as described with reference to Figures 10 to 13 The described LBT bandwidth configuration component is implemented.

[0197] At 1910, the base station may transmit downlink control information on a listen-before-talk bandwidth in the listen-before-talk bandwidth set based on the UE being configured with a total number of blind hypotheses in the blind hypothesis set that is equal to or greater than the total number of listen-before-talk bandwidths in the listen-before-talk bandwidth set. The operations of 1910 may be performed according to the methods described herein. In some examples, aspects of the operations of 1910 may be performed as described with reference to Figures 10 to 13 The described LBT bandwidth transmission component is implemented.

[0198] At 1915, the base station may transmit a wake-up signal during the wake-up signal period of the UE. The operations of 1915 may be performed according to the methods described herein. In some examples, aspects of the operations of 1915 may be performed as described with reference to Figures 10 to 13 The described LBT bandwidth transmission component is implemented.

[0199] At 1920, the base station may transmit to the UE on the one or more listen-before-talk bandwidths during the DRX duration based on transmitting the wake-up signal. The operations of 1920 may be performed according to the methods described herein. In some examples, aspects of the operations of 1920 may be performed as described with reference to Figures 10 to 13 The DRX duration component described is performed.

[0200] Aspect 1: A method for wireless communication at a UE, comprising: receiving configurations for multiple listen-before-talk bandwidths from a base station, wherein each of the multiple listen-before-talk bandwidths is associated with one or more downlink control channel candidates of a search space for a control resource set; and monitoring one or more of the multiple listen-before-talk bandwidths based at least in part on a set of blind hypotheses associated with the listen-before-talk bandwidths, wherein a total number of blind hypotheses in the set of blind hypotheses is equal to or greater than a total number of the listen-before-talk bandwidths in the multiple listen-before-talk bandwidths.

[0201] Aspect 2: A method as in Aspect 1, wherein monitoring one or more of the multiple listen-before-talk bandwidths includes: monitoring the one or more listen-before-talk bandwidths during a wake-up signal period to look for a wake-up signal from the base station; and determining whether to wake up and monitor the DRX duration based at least in part on detecting the wake-up signal.

[0202] Aspect 3: The method of aspect 2, wherein the wake-up signal is detected based at least in part on the monitoring; and based at least in part on the detected wake-up signal, monitoring is performed during the DRX duration to search for a downlink control channel signal.

[0203] Aspect 4: A method as in any one of Aspects 1 or 2, wherein: determining that the wake-up signal is not received during the wake-up signal period based at least in part on the monitoring; and remaining in a low power state within the DRX duration.

[0204] Aspect 5: A method as in any one of Aspects 1 to 4, wherein: monitoring one or more of the multiple listen-before-talk bandwidths comprises: monitoring a first subset of the multiple listen-before-talk bandwidths during a first monitoring opportunity based at least in part on a first subset of the set of blind hypotheses; and monitoring a second subset of the multiple listen-before-talk bandwidths during a second monitoring opportunity based at least in part on a second subset of the set of blind hypotheses.

[0205] Aspect 6: The method of aspect 5, further comprising: receiving an indication of a first subset of the plurality of listen-before-talk bandwidths and a second subset of the plurality of listen-before-talk bandwidths from the base station.

[0206] Aspect 7: A method as in Aspect 6, wherein receiving an indication of a first subset of the multiple listen-before-talk bandwidths and a second subset of the multiple listen-before-talk bandwidths includes: receiving a control resource set configuration in combination with a configuration for the multiple listen-before-talk bandwidths, the control resource set configuration including an indication of a first subset of the multiple listen-before-talk bandwidths and a second subset of the multiple listen-before-talk bandwidths.

[0207] Aspect 8: A method as in any one of Aspects 1 to 7, wherein: monitoring one or more listen-before-talk bandwidths among the multiple listen-before-talk bandwidths comprises: using a first beam to monitor a first listen-before-talk bandwidth among the multiple listen-before-talk bandwidths; and using a second beam to monitor a second listen-before-talk bandwidth among the multiple listen-before-talk bandwidths.

[0208] Aspect 9: A method as in Aspect 8, wherein monitoring one or more listen-before-talk bandwidths of the multiple listen-before-talk bandwidths includes: receiving a TCI for each of the multiple listen-before-talk bandwidths from the base station; and determining a first beam and a second beam, respectively, based at least in part on the TCI received for each of the first listen-before-talk bandwidth and the second listen-before-talk bandwidth.

[0209] Aspect 10: The method according to any one of aspects 1 to 9, further comprising: monitoring to find downlink control information from the base station.

[0210] Aspect 11: A method for performing wireless communications at a base station, comprising: transmitting a configuration for multiple listen-before-talk bandwidths to a UE, wherein each of the multiple listen-before-talk bandwidths is associated with one or more downlink control channel candidates of a search space for a control resource set; and transmitting downlink control information on a listen-before-talk bandwidth in the multiple listen-before-talk bandwidths based at least in part on the UE being configured with a total number of blind hypotheses in a blind hypothesis set that is equal to or greater than the total number of listen-before-talk bandwidths in the multiple listen-before-talk bandwidths.

[0211] Aspect 12: A method as in Aspect 11, wherein transmitting the downlink control information further comprises: transmitting a wake-up signal during a wake-up signal period of the UE; and transmitting to the UE on the listen-before-talk bandwidth during the DRX duration based at least in part on transmitting the wake-up signal.

[0212] Aspect 13: A method as in any one of Aspects 11 to 12, wherein: transmitting the downlink control information further includes: at least partially based on a first listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths including a first subset of downlink control channel candidates, transmitting the downlink control information during a first transmission opportunity on the listen-before-talk bandwidth; or at least partially based on a second listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths including a second subset of downlink control channel candidates, transmitting the downlink control information during a second transmission opportunity on the listen-before-talk bandwidth.

[0213] Aspect 14: The method of aspect 13, further comprising: transmitting an indication of a first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths and a second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths.

[0214] Aspect 15: A method as in Aspect 14, wherein transmitting an indication of a first listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths and a second listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths includes: transmitting a control resource set configuration in combination with a configuration for the multiple listen-before-talk bandwidths, the control resource set configuration including an indication of a first listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths and a second listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths.

[0215] Aspect 16: The method of any one of Aspects 11 to 15, wherein: transmitting the downlink control information further comprises: transmitting the downlink control information using a beam associated with a listen-before-talk bandwidth.

[0216] Aspect 17: The method of Aspect 16 further includes: transmitting a corresponding TCI state for each of the multiple listen-before-talk bandwidths, wherein each of the multiple listen-before-talk bandwidths is associated with a corresponding beam based at least in part on the corresponding TCI state.

[0217] Aspect 18: An apparatus for performing wireless communication at a UE, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as in any one of Aspects 1 to 10.

[0218] Aspect 19: An apparatus for wireless communication at a UE, comprising at least one device for performing the method of any one of aspects 1 to 10.

[0219] Aspect 20: A non-transitory computer-readable medium storing a code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any one of aspects 1 to 10.

[0220] Aspect 21: An apparatus for performing wireless communications at a base station, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as described in any one of Aspects 11 to 17.

[0221] Aspect 22: An apparatus for wireless communication at a base station, comprising at least one device for performing the method of any one of Aspects 11 to 17.

[0222] Aspect 23: A non-transitory computer-readable medium storing a code for wireless communication at a base station, the code comprising instructions executable by a processor to perform the method of any one of aspects 11 to 17.

[0223] It should be noted that the methods described herein describe possible implementations, and that the various operations and steps may be rearranged or otherwise modified and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0224] The technology described herein can be used in various wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA) and other systems. CDMA systems can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions are generally referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is generally 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).

[0225] 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 Universal Mobile Telecommunications System (UMTS). LTE, LTE-A, and LTE-A Pro are versions of UMTS 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 may be used for systems and radio technologies mentioned herein as well as for other systems and radio technologies. Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may also be applicable to applications other than LTE, LTE-A, LTE-A Pro, or NR applications.

[0226] A macro cell generally covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UEs with service subscriptions to a network provider. A small cell may be associated with a lower power base station (compared to a macro cell), and the small cell may operate in the same or different (e.g., licensed, unlicensed, etc.) frequency band as the macro cell. According to various examples, a small cell may include a pico cell, a femto cell, and a micro cell. A pico cell, for example, may cover a smaller geographic area and may allow unrestricted access by UEs with service subscriptions to a network provider. A femto cell may also cover a smaller geographic area (e.g., a residence) and may provide restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG), UEs of users in the residence, etc.). An eNB for a macro cell may be referred to as a macro eNB. An eNB for a small cell may be referred to as a small cell eNB, a pico eNB, a femto eNB, or a home eNB. An eNB may support one or more (eg, two, three, four, etc.) cells and may also support communication using one or more component carriers.

[0227] The wireless communication systems described herein may support synchronous or asynchronous operation. For synchronous operation, each base station may have similar frame timing, and transmissions from different base stations may be roughly aligned in time. For asynchronous operation, each base station may have different frame timing, and transmissions from different base stations may not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operation.

[0228] The information and signals described herein may be represented using any of a variety of different techniques and technologies. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0229] The various illustrative blocks and modules described in conjunction with the disclosure herein may 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 may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0230] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted by a computer-readable medium as one or more instructions or codes. 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 may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features that implement the functions may also be physically located in various locations, including being distributed so that parts of the functions are implemented at different physical locations.

[0231] Computer-readable medium includes both non-transient computer storage medium and communication medium, and it includes any medium that facilitates computer program to transfer from one place to another place.Non-transient storage medium can be any available medium that can be accessed by general or special-purpose computer.As an example and not limitation, non-transient computer-readable medium can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, disk storage or other magnetic storage device, or can be used to carry or store instruction or data structure form of desired program code means and can be accessed by general or special-purpose computer or general or special-purpose processor any other non-transient medium.Similarly, any connection is also properly referred to as computer-readable medium.For example, if software is transmitted from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then the coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are just included in the definition of medium. Disk and disc as used herein include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0232] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Similarly, as used herein, the phrase "based on" should not be interpreted as referring to a closed set of conditions. For example, an exemplary step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0233] In the accompanying drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number that distinguishes between similar components. If only the first reference number is used in the specification, the description may apply to any of the similar components having the same first reference number regardless of the second reference number, or other subsequent reference numbers.

[0234] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or that fall within the scope of the claims. The term "exemplary" as used herein means "used as an example, instance, or illustration" and does not mean "better than" or "better than other examples." This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques 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.

[0235] The description herein is provided to enable those skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled in the art, and the universal 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 should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment UE, comprising: receiving, from a network device, a configuration for a plurality of listen-before-talk bandwidths, wherein each of the plurality of listen-before-talk bandwidths is associated with one or more downlink control channel candidates for a search space of a control resource set; and A first listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths is monitored during a first monitoring opportunity associated with a first discontinuous reception (DRX) cycle and a second listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths is monitored during a second monitoring opportunity associated with a second DRX cycle based at least in part on a set of blind hypotheses associated with the listen-before-talk bandwidths, wherein a total number of blind hypotheses in the set of blind hypotheses is equal to or greater than a total number of listen-before-talk bandwidths in the multiple listen-before-talk bandwidths.

2. The method of claim 1, wherein monitoring the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths comprises: monitoring the first listen-before-talk bandwidth subset for a wake-up signal from the network device during a wake-up signal period; as well as A determination is made based at least in part on detecting the wake-up signal whether to wake up and monitor a DRX duration of the first DRX cycle.

3. The method of claim 2, wherein: detecting the wake-up signal based at least in part on the monitoring; and Based at least in part on the detected wake-up signal, monitoring for a downlink control channel signal during the DRX duration.

4. The method of claim 2, wherein: determining, based at least in part on the monitoring, that the wake-up signal is not received during the wake-up signal period; and Remain in a low power state for the DRX duration.

5. The method of claim 1 , wherein monitoring the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths is based at least in part on a first subset of the set of blind hypotheses, and monitoring the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths is based at least in part on a second subset of the set of blind hypotheses.

6. The method of claim 1, further comprising: An indication of the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths and the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths is received from the network device.

7. The method of claim 6, wherein receiving the indication of the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths and the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths comprises: A control resource set configuration is received in conjunction with the configuration for the plurality of listen-before-talk bandwidths, the control resource set configuration comprising the indication of the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths and the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths.

8. The method of claim 1, wherein monitoring the first listen-before-talk bandwidth subset comprises: monitoring a first listen-before-talk bandwidth of the plurality of listen-before-talk bandwidths using a first beam; as well as A second listen-before-talk bandwidth of the plurality of listen-before-talk bandwidths is monitored using a second beam.

9. The method of claim 8, further comprising: receiving, from the network device, a transmission configuration indicator TCI for each listen-before-talk bandwidth of the plurality of listen-before-talk bandwidths; as well as The first beam and the second beam are determined based at least in part on TCI received for each of the first listen-before-talk bandwidth and the second listen-before-talk bandwidth, respectively.

10. The method of claim 1, further comprising: Monitoring for downlink control information including a wake-up signal from the network device.

11. A method for wireless communication at a network device, comprising: transmitting a configuration for a plurality of listen-before-talk bandwidths to a user equipment (UE), wherein each of the plurality of listen-before-talk bandwidths is associated with one or more downlink control channel candidates for a search space of a control resource set; and At least partially based on the UE being configured with a total number of blind hypotheses in the blind hypothesis set that is equal to or greater than the total number of listen-before-talk bandwidths in the multiple listen-before-talk bandwidths, downlink control information is transmitted during a first transmission opportunity associated with a first discontinuous reception (DRX) cycle at least partially based on a first listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths and during a second transmission opportunity associated with a second DRX cycle at least partially based on a second listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths.

12. The method of claim 11, wherein transmitting the downlink control information further comprises: transmitting a wake-up signal during a wake-up signal period of the UE; as well as Based at least in part on transmitting the wake-up signal, transmitting to the UE on the first listen-before-talk bandwidth subset or the second listen-before-talk bandwidth subset during a DRX duration of the first DRX cycle or the second DRX cycle, respectively.

13. The method of claim 11, further comprising: An indication of the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths and the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths is transmitted.

14. The method of claim 13, wherein transmitting the indication of the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths and the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths comprises: A control resource set configuration is transmitted in conjunction with the configuration for the plurality of listen-before-talk bandwidths, the control resource set configuration comprising the indication of the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths and the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths.

15. The method of claim 11, wherein transmitting the downlink control information further comprises: The downlink control information is transmitted using a beam associated with the first listen-before-talk bandwidth subset or the second listen-before-talk bandwidth subset.

16. The method of claim 15, further comprising: A corresponding transmission configuration indicator (TCI) state is transmitted for each of the plurality of listen-before-talk bandwidths, wherein each of the plurality of listen-before-talk bandwidths is associated with a corresponding beam based at least in part on the corresponding TCI state.

17. An apparatus for wireless communication at a user equipment UE, comprising: means for receiving, from a network device, a configuration for a plurality of listen-before-talk bandwidths, wherein each of the plurality of listen-before-talk bandwidths is associated with one or more downlink control channel candidates for a search space of a control resource set; as well as A device for monitoring a first listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths during a first monitoring opportunity associated with a first discontinuous reception (DRX) cycle and monitoring a second listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths during a second monitoring opportunity associated with a second DRX cycle based at least in part on a set of blind hypotheses associated with the listen-before-talk bandwidths, wherein a total number of blind hypotheses in the set of blind hypotheses is equal to or greater than a total number of listen-before-talk bandwidths in the multiple listen-before-talk bandwidths.

18. The apparatus of claim 17, wherein the means for monitoring the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths comprises: means for monitoring said first listen-before-talk bandwidth subset for a wake-up signal from said network device during a wake-up signal period; as well as means for determining whether to wake up and monitor a DRX duration of the first DRX cycle based at least in part on detecting the wake-up signal.

19. The apparatus of claim 17, wherein the means for monitoring comprises: means for monitoring the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths based at least in part on the first subset of the set of blind hypotheses; as well as Means for monitoring the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths based at least in part on a second subset of the set of blind hypotheses.

20. The apparatus of claim 19, further comprising: Means for receiving, from the network device, an indication of the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths and the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths.

21. The apparatus of claim 20, wherein the means for receiving the indication of the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths and the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths comprises: Means for receiving, in conjunction with said configuration for said plurality of listen-before-talk bandwidths, a control resource set configuration comprising said indication of said first listen-before-talk bandwidth subset of said plurality of listen-before-talk bandwidths and said second listen-before-talk bandwidth subset of said plurality of listen-before-talk bandwidths.

22. The apparatus of claim 17, wherein the means for monitoring the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths comprises: means for monitoring a first listen-before-talk bandwidth of the plurality of listen-before-talk bandwidths using a first beam; as well as Means for monitoring a second listen-before-talk bandwidth of the plurality of listen-before-talk bandwidths using a second beam.

23. The apparatus of claim 22, wherein the means for monitoring further comprises: means for receiving, from the network device, a transmission configuration indicator (TCI) for each listen-before-talk bandwidth of the plurality of listen-before-talk bandwidths; as well as Means for determining the first beam and the second beam based at least in part on TCI received for each of the first listen-before-talk bandwidth and the second listen-before-talk bandwidth, respectively.

24. The apparatus of claim 17, further comprising: Means for monitoring for downlink control information including a wake-up signal from the network device.

25. A device for wireless communication at a network device, comprising: means for transmitting, to a user equipment (UE), a configuration for a plurality of listen-before-talk bandwidths, wherein each of the plurality of listen-before-talk bandwidths is associated with one or more downlink control channel candidates for a search space of a control resource set; as well as Means for transmitting downlink control information during a first transmission opportunity associated with a first discontinuous reception (DRX) cycle at least partially based on a first listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths and during a second transmission opportunity associated with a second DRX cycle at least partially based on a second listen-before-talk bandwidth subset of the multiple listen-before-talk bandwidths, based at least in part on the UE being configured with a total number of blind hypotheses in a set of blind hypotheses that is equal to or greater than the total number of listen-before-talk bandwidths in the multiple listen-before-talk bandwidths.

26. The apparatus of claim 25, further comprising: Means for transmitting an indication of the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths and the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths.

27. The apparatus of claim 26, wherein the means for transmitting the indication of the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths and the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths comprises: Means for transmitting a control resource set configuration in conjunction with a configuration for the plurality of listen-before-talk bandwidths, the control resource set configuration comprising the indication of the first listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths and the second listen-before-talk bandwidth subset of the plurality of listen-before-talk bandwidths.

28. The apparatus of claim 25, wherein the means for transmitting the downlink control information comprises: Means for transmitting the downlink control information using a beam associated with the first listen-before-talk bandwidth subset or the second listen-before-talk bandwidth subset.

29. An apparatus for wireless communication at a user equipment (UE), comprising: processor; a memory coupled to the processor; as well as Instructions stored in the memory, when executed by the processor, cause the apparatus to perform the method as claimed in any one of claims 1 to 10.

30. An apparatus for wireless communication at a network device, comprising: processor; a memory coupled to the processor; as well as Instructions stored in the memory, which when executed by the processor cause the apparatus to perform the method of any one of claims 11 to 16.

31. A non-transitory computer readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions which, when executed by a processor of the UE, cause the processor to perform the method of any one of claims 1 to 10.

32. A non-transitory computer readable medium storing code for wireless communication at a network device, the code comprising instructions which, when executed by a processor of the network device, cause the processor to perform the method of any one of claims 11 to 16.

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