Control resource sets for new radios

Abstract

A set of control resources for a new radio is disclosed. Aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive a configuration of a plurality of search space sets for a control resource set (CORESET), the plurality of search space sets including one or more of a first type of search space set configured with a plurality of frequency domain monitoring locations or a second type of search space set not configured with a plurality of frequency domain monitoring locations. The UE may receive a physical downlink control channel communication based at least in part on monitoring the plurality of search space sets in accordance with a determination that the CORESET is associated with the same type of search space set. Numerous other aspects are described.

Description

[0001] This application is a divisional application of the Chinese patent application with an application date of January 12, 2021, application number 202180012651.0 (PCT international application number PCT / US2021 / 070019), and invention name “Control resource set for new radio”.

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 975,466, filed on February 12, 2020, entitled “CONTROL RESOURCE SET FOR NEW RADIO IN UNLICENSED SPECTRUM,” and U.S. Non-Provisional Patent Application No. 17 / 248,124, filed on January 11, 2021, entitled “CONTROL RESOURCE SETFOR NEW RADIO,” which are hereby expressly incorporated herein by reference. Technical Field

[0004] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for controlling resource sets applied to New Radio (NR-U) in unlicensed spectrum. Background Art

[0005] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0006] A wireless communication network may include several base stations (BSs) capable of supporting communications for several user equipment (UEs). UEs may communicate with a BS via downlinks and uplinks. The downlink (or forward link) refers to the communication link from the BS to the UE, while the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in greater detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit / receive point (TRP), new radio (NR) BS, 5G Node B, and so on.

[0007] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipment to communicate at the city, country, region, and even global levels. NR (which may also be referred to as 5G) is an enhancement set to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with a cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple-input multiple-output (MIMO) antenna technology and carrier aggregation to improve spectrum efficiency, reduce costs, improve services, utilize new spectrum, and better integrate with other open standards. However, as the demand for mobile broadband access continues to grow, there is a need for further improvements to LTE and NR technologies. Preferably, these improvements should be applicable to other multiple access technologies and telecommunication standards that adopt these technologies. Summary of the Invention

[0008] In some aspects, a wireless communication method performed by a user equipment (UE) may include: receiving a configuration of multiple search space sets for a control resource set (CORESET), the multiple search space sets including one or more of a first type of search space set configured with multiple frequency domain monitoring positions or a second type of search space set not configured with multiple frequency domain monitoring positions; and receiving a physical downlink control channel (PDCCH) communication based at least in part on monitoring the multiple search space sets based on determining that the CORESET is associated with the same type of search space set.

[0009] In some aspects, a wireless communication method performed by a base station (BS) may include: transmitting a configuration of multiple search space sets for a CORESET, the multiple search space sets including one or more of a first type of search space set configured with multiple frequency domain monitoring positions or a second type of search space set not configured with multiple frequency domain monitoring positions; and transmitting PDCCH communication in the CORESET based at least in part on the CORESET being associated with a search space set of the same type.

[0010] In some aspects, a wireless communication method performed by a UE may include: monitoring a CORESET for PDCCH communication, the CORESET having frequency domain resources in a plurality of resource block sets; and selectively receiving the PDCCH communication in the CORESET based at least in part on whether corresponding listen-before-talk (LBT) operations for the plurality of resource block sets are successful.

[0011] In some aspects, a wireless communication method performed by a BS may include: performing corresponding LBT operations for multiple resource block sets comprising frequency domain resources of a CORESET; and selectively transmitting PDCCH communications in the CORESET based at least in part on whether the corresponding LBT operations for the multiple resource block sets are successful.

[0012] In some aspects, a UE for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to: receive a configuration of multiple search space sets for a core set, the multiple search space sets including one or more of a first type of search space set configured with multiple frequency domain monitoring locations or a second type of search space set not configured with multiple frequency domain monitoring locations; and receive a PDCCH communication based at least in part on monitoring the multiple search space sets based on determining that the core set is associated with the same type of search space set.

[0013] In some aspects, a base station for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to: transmit a configuration of multiple search space sets for a core set, the multiple search space sets including one or more of a first type of search space set configured with multiple frequency domain monitoring locations or a second type of search space set not configured with multiple frequency domain monitoring locations; and transmit a PDCCH communication in the core set based at least in part on the core set being associated with the search space set of the same type.

[0014] In some aspects, a UE for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to: monitor a core set for PDCCH communications, the core set having frequency domain resources in a plurality of resource block sets; and selectively receive the PDCCH communications in the core set based at least in part on whether corresponding LBT operations for the plurality of resource block sets are successful.

[0015] In some aspects, a base station for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to: perform respective LBT operations on a plurality of resource block sets comprising frequency domain resources of a core set; and selectively transmit a PDCCH communication in the core set based at least in part on whether the respective LBT operations on the plurality of resource block sets were successful.

[0016] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to: receive a configuration of multiple search space sets for a core set, the multiple search space sets comprising one or more of a first type of search space set configured with multiple frequency-domain monitoring locations or a second type of search space set not configured with multiple frequency-domain monitoring locations; and receive a PDCCH communication based at least in part on monitoring the multiple search space sets based on determining that the core set is associated with the same type of search space set.

[0017] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a base station, may cause the one or more processors to: transmit a configuration of multiple search space sets for a core set, the multiple search space sets comprising one or more of a first type of search space set configured with multiple frequency-domain monitoring locations or a second type of search space set not configured with multiple frequency-domain monitoring locations; and transmit a PDCCH communication in the core set based at least in part on the core set being associated with a search space set of the same type.

[0018] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to: monitor a core set for PDCCH communication, the core set having frequency domain resources in a plurality of resource block sets; and selectively receive the PDCCH communication in the core set based at least in part on whether corresponding LBT operations for the plurality of resource block sets are successful.

[0019] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a base station, may cause the one or more processors to: perform corresponding LBT operations on a plurality of resource block sets comprising frequency domain resources of a core set; and selectively transmit a PDCCH communication in the core set based at least in part on whether the corresponding LBT operations on the plurality of resource block sets were successful.

[0020] In some aspects, an apparatus for wireless communication may include: means for receiving a configuration of multiple search space sets for a CORESET, the multiple search space sets including one or more of a first type of search space set configured with multiple frequency domain monitoring locations or a second type of search space set not configured with multiple frequency domain monitoring locations; and means for receiving PDCCH communications based at least in part on monitoring the multiple search space sets in accordance with a determination that the CORESET is associated with the same type of search space set.

[0021] In some aspects, an apparatus for wireless communication may include: means for transmitting a configuration of multiple search space sets for a CORESET, the multiple search space sets including one or more of a first type of search space set configured with multiple frequency domain monitoring positions or a second type of search space set not configured with multiple frequency domain monitoring positions; and means for transmitting PDCCH communications in the CORESET based at least in part on the CORESET being associated with a search space set of the same type.

[0022] In some aspects, an apparatus for wireless communication may include: means for monitoring a CORESET for PDCCH communications, the CORESET having frequency domain resources in a plurality of resource block sets; and means for selectively receiving the PDCCH communications in the CORESET based at least in part on whether corresponding LBT operations for the plurality of resource block sets are successful.

[0023] In some aspects, an apparatus for wireless communication may include: means for performing respective LBT operations for a plurality of resource block sets comprising frequency-domain resources of a CORESET; and means for selectively transmitting PDCCH communications in the CORESET based at least in part on whether the respective LBT operations for the plurality of resource block sets are successful.

[0024] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems substantially as described herein with reference to and as illustrated in the accompanying figures and description.

[0025] The foregoing has broadly outlined the features and technical advantages of examples according to the present disclosure in an effort to make the following detailed description better understood. Additional features and advantages will be described hereinafter. The concepts and specific examples disclosed can be readily used as a basis for modifying or designing other structures for implementing the same purposes as the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, as well as the associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the figures is provided for illustration and description purposes and is not intended to define limitations on the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to understand in detail the features of the present disclosure set forth above, a more particular description of the content briefly summarized above may be obtained with reference to various aspects, some of which are illustrated in the accompanying drawings. It should be noted, however, that the accompanying drawings illustrate only certain typical aspects of the present disclosure and are not to be considered limiting of its scope, as the description may admit to other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0027] Figure 1 is a block diagram illustrating an example of a wireless communication network in accordance with various aspects of the present disclosure.

[0028] Figure 2 is a block diagram illustrating an example of a base station (BS) and a user equipment (UE) in communication in a wireless communication network according to various aspects of the present disclosure.

[0029] Figure 3 is a diagram illustrating an example of a control resource set (CORESET) structure.

[0030] Figure 4-5 is a diagram illustrating an example of a CORESET for new radio according to various aspects of the present disclosure.

[0031] Figure 6is a diagram illustrating example processes performed, for example, by a UE, according to various aspects of the present disclosure.

[0032] Figure 7 is a diagram illustrating example procedures performed, for example, by a BS, according to various aspects of the present disclosure.

[0033] Figure 8 is a diagram illustrating example processes performed, for example, by a UE, according to various aspects of the present disclosure.

[0034] Figure 9 is a diagram illustrating example procedures performed, for example, by a BS, according to various aspects of the present disclosure. DETAILED DESCRIPTION

[0035] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be implemented in many different forms and should not be interpreted as being limited to any specific structure or function given throughout the present disclosure. On the contrary, these aspects are provided to make the present disclosure thorough and complete, and they will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will appreciate that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently of any other aspect of the present disclosure or implemented in combination. For example, any number of aspects set forth herein can be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods that are practiced using a supplement to the various aspects of the present disclosure set forth herein or other other structures, functionality, or structure and functionality. It should be understood that any aspect of the present disclosure disclosed herein can be implemented by one or more elements of the claims.

[0036] Several aspects of telecommunications systems will now be presented with reference to various devices and techniques. These devices and techniques are described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0037] It should be noted that although various aspects may be described herein using terminology generally associated with 3G and / or 4G wireless technologies, various aspects of the present disclosure may be applicable in communication systems based on other generations, such as 5G and later generations, including NR technology.

[0038] Figure 11 is a diagram illustrating a wireless network 100 in which various aspects of the present disclosure may be practiced. The wireless network 100 may be an LTE network or some other wireless network, such as a 5G or NR network. The wireless network 100 may include several BSs 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A BS is an entity that communicates with user equipment (UE) and may also be referred to as a base station, NRBS, Node B, gNB, 5G Node B (NB), access point, transmit reception point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to the coverage area of ​​a BS and / or a BS subsystem serving that coverage area, depending on the context in which the term is used.

[0039] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown in FIG, BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB," "base station," "NR BS," "gNB," "TRP," "AP," "Node B," "5G NB," and "cell" may be used interchangeably herein.

[0040] In some aspects, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected to each other and / or to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces, such as direct physical connections, virtual networks, and / or the like using any suitable transport network.

[0041] The wireless network 100 may also include a relay station. A relay station is an entity that can receive transmissions of data from an upstream station (e.g., a BS or a UE) and send transmissions of the data to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown in , relay station 110d may communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay station may also be referred to as a relay BS, relay base station, relay, or the like.

[0042] The wireless network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0043] The network controller 130 may be coupled to the set of BSs and may provide coordination and control of these BSs. The network controller 130 may communicate with each BS via a backhaul. These BSs may also communicate with each other directly or indirectly via a wireless or wired backhaul.

[0044] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be stationary or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. A UE may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0045] Some UEs may be considered machine type communication (MTC) UEs, or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, and the like, which can communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide connectivity to or to a network (e.g., a wide area network (such as the Internet) or a cellular network), for example, via a wired or wireless communication link. Some UEs may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included within a housing that houses components of UE 120, such as a processor component, a memory component, and the like. In some aspects, the processor component and the memory component may be coupled together. For example, the processor component (e.g., one or more processors) and the memory component (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, electrically coupled, and the like.

[0046] In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a specific radio access technology (RAT) and may operate on one or more frequencies. A RAT may also be referred to as a radio technology, air interface, etc. A frequency may also be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0047] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary) using one or more sidelink channels. For example, the UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In this scenario, the UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the base station 110.

[0048] As indicated above, Figure 1 are provided as examples. Other examples may differ from those described in Figure 1 Examples described.

[0049] Figure 2A block diagram shows a design 200 of a base station 110 and a UE 120, which may be Figure 1 One for each base station and one for each UE in . Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general T≧1 and R≧1.

[0050] At base station 110, transmit processor 220 may receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. Transmit processor 220 may also generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS)) and synchronization signals (e.g., a primary synchronization signal (PSS) and a secondary synchronization signal (SSS)). A transmit (TX) multiple-input, multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, as applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and frequency upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively. According to various aspects described in greater detail below, position coding may be utilized to generate synchronization signals to convey additional information.

[0051] At UE 120, antennas 252a through 252r may receive downlink signals from base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols where applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The channel processor may determine reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of UE 120 may be included in a housing.

[0052] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.) from the controller / processor 280. The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236, if applicable, and further processed by the receive processor 238 to obtain decoded data and control information sent by the UE 120. Receive processor 238 may provide decoded data to data sink 239 and decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and communicate with network controller 130 via communication unit 244. Network controller 130 may include communication unit 294, controller / processor 290, and memory 292.

[0053] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other component(s) of the base station 110 may perform one or more techniques associated with a control resource set for NR (e.g., NR in unlicensed spectrum (NR-U)), as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the may perform or direct e.g. Figure 6 The process of 600 Figure 7 The process of 700 Figure 8 The process of 800 Figure 9 900, and / or operations of other processes as described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compilation, conversion, interpretation, etc.) by one or more processors of base station 110 and / or UE 120, may perform or direct, for example, Figure 6 The process of 600 Figure 7 The process of 700 Figure 8 The process of 800 Figure 9 The process 900 of , and / or operations of other processes as described herein. In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, interpreting instructions, etc. The scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0054] In some aspects, the UE 120 may include: means for receiving a configuration of multiple search space sets for a CORESET, the multiple search space sets including one or more of a first type of search space set configured with multiple frequency domain monitoring locations or a second type of search space set not configured with multiple frequency domain monitoring locations; means for receiving a physical downlink control channel (PDCCH) communication based at least in part on monitoring the multiple search space sets in accordance with a determination that the CORESET is associated with the same type of search space set; means for monitoring the CORESET for PDCCH communication, the CORESET having frequency domain resources in a plurality of resource block sets; means for selectively receiving PDCCH communication in the CORESET based at least in part on whether corresponding listen-before-talk (LBT) operations for the plurality of resource block sets are successful, and the like. In some aspects, such means may include in conjunction with Figure 2One or more components of the UE 120 are depicted, such as the controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, and so forth.

[0055] In some aspects, the base station 110 may include: means for transmitting a configuration of multiple search space sets for a CORESET, the multiple search space sets including one or more of a first type of search space set configured with multiple frequency domain monitoring positions or a second type of search space set not configured with multiple frequency domain monitoring positions; means for transmitting PDCCH communications in the CORESET based at least in part on the CORESET being associated with a search space set of the same type; means for performing corresponding LBT operations for multiple resource block sets comprising frequency domain resources of the CORESET; means for selectively transmitting PDCCH communications in the CORESET based at least in part on whether the corresponding LBT operations for the multiple resource block sets are successful, and the like. In some aspects, such means may include in conjunction with Figure 2 One or more components of base station 110 are depicted, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, and so forth.

[0056] As indicated above, Figure 2 are provided as examples. Other examples may differ from those described in Figure 2 Examples described.

[0057] Figure 3 is a diagram illustrating an example 300 of a CORESET structure according to various aspects of the present disclosure. Figure 3 As shown, the CORESET structure 305 may include a CORESET 310 within a bandwidth part (BWP) 315. The CORESET 310 may include specific RB groups, each containing six resource blocks (RBs). The specific RB groups of the CORESET 310 may be identified by a frequency domain resource parameter (e.g., frequencyDomainResources) configured for the CORESET. The frequency domain resource parameter may be a bitmap that maps the RB groups to the CORESET 310 according to an RB grid having a specific offset 320 from the lowest frequency of the BWP 315. As shown, the CORESET 310 may include RBs across multiple RB sets (shown as RB Set 0, RB Set 1, RB Set 2, and RB Set 3).

[0058] like Figure 3As shown, the CORESET structure 330 may include a CORESET 335 within a BWP 340. In some aspects, the BWP 315 and the BWP 340 may be the same BWP or different BWPs. As shown, the CORESET 335 may include RBs in the RB set that are located in a specific bandwidth, such as the LBT bandwidth for NR-U (i.e., the bandwidth in which the transmitter performs LBT operations before transmission). The CORESET configuration of the CORESET 335 may include frequency domain resource parameters and RB offset parameters (e.g., rb-Offset) as described above.

[0059] In some cases, the search space configuration associated with CORESET 335 may include a frequency domain monitoring location parameter (e.g., freqMonitorLocations-r16). The frequency domain monitoring location parameter may be a bitmap that identifies RB sets (e.g., one or more of RB set 0, RB set 1, RB set 2, or RB set 3) that will be frequency domain monitoring locations for the search space. As shown, RB set 0, RB set 2, and RB set 3 may be frequency domain monitoring locations (e.g., the frequency domain monitoring location bitmap has a value of 1011).

[0060] When frequency domain monitoring locations are configured in the search space configuration, the frequency domain resource parameters configured by the CORESET may be interpreted differently than when frequency domain monitoring locations are not configured. For example, when frequency domain monitoring locations are configured, the frequency domain resource parameters configured by the CORESET may be interpreted as identifying only the RB groups in the first RB set (e.g., RB set 0) identified as the frequency domain monitoring locations for the CORESET 335. RB groups identified by the frequency domain resource parameters outside the first RB set may be ignored. Furthermore, the frequency domain resource parameters may be interpreted as mapping RB groups to the CORESET 335 according to an RB grid that has an offset 345 (according to the RB offset parameter configured by the CORESET) from the lowest frequency of the first RB set. The CORESET 335 may include RBs from other RB sets that are identified as frequency domain monitoring locations (e.g., RB set 2 and RB set 3) according to the RB offset parameter and follow the pattern in which the RB groups in the first RB set (e.g., RB set 0) are mapped to the CORESET 335.

[0061] In some wireless telecommunication systems, a CORESET may be configured with multiple search space sets (e.g., a CORESET may be associated with multiple search space sets configured for the CORESET). In this case, one or more of the search space sets may be configured with multiple frequency domain monitoring positions, and one or more of the search space sets may not be configured with multiple frequency domain monitoring positions. As described above, the frequency domain resource parameters of the CORESET may be interpreted differently based at least in part on whether the search space set is configured with multiple frequency domain monitoring positions. In particular, different offsets may be used based at least in part on whether the search space set is configured with multiple frequency domain monitoring positions, thereby defining different RB grids.

[0062] As a result, channel estimation performed for control channel elements (CCEs) defined according to one specific RB grid may not be applicable to CCEs defined according to another specific RB grid, thereby reducing channel estimation efficiency. In addition, defining CCEs according to multiple different RB grids may increase the complexity of CCE counting for oversubscription. Some techniques and apparatuses described herein enable search space sets configured for a CORESET to be of the same type, so that these search space sets use the same offset and thus define the same RB grid.

[0063] In addition, in some wireless telecommunication systems, a CORESET may include frequency domain resources in multiple RB sets, as described above in conjunction with the CORESET structure 305. That is, a CORESET may include frequency domain resources in multiple LBT bandwidths. In some cases, the corresponding LBT operation for one or more RB sets may be successful, while the corresponding LBT operation for one or more other RB sets may be unsuccessful. As a result, the PDCCH may be partially transmitted (e.g., in the frequency domain resources of the RB set associated with the successful LBT operation), thereby impairing the performance of the PDCCH. In some techniques and apparatuses described herein, the PDCCH for the CORESET in multiple resource block sets is selectively transmitted based at least in part on whether the corresponding LBT operation for the multiple resource block sets is successful, thereby improving the performance of the PDCCH.

[0064] As indicated above, Figure 3 are provided as examples. Other examples may differ from those described in Figure 3 Examples described.

[0065] Figure 4 4 is a diagram illustrating an example 400 of a CORESET for NR-U according to various aspects of the present disclosure. Figure 4As shown in , UE 120 and BS 110 can communicate in conjunction with PDCCH communication. In some aspects, UE 120 and BS 110 can operate in an unlicensed spectrum. For example, UE 120 and BS 110 can operate in NR-U.

[0066] As indicated by reference numeral 405 , BS 110 may transmit and UE 120 may receive a CORESET configuration (eg, via radio resource control (RRC) signaling). The CORESET configuration may identify resources (eg, RBs) included in the CORESET for UE 120 .

[0067] As shown by reference numeral 410, BS 110 may transmit and UE 120 may receive one or more search space set configurations (e.g., via RRC signaling). That is, BS 110 may configure one or more search space sets for a CORESET (e.g., a CORESET may be associated with one or more search space sets). In some aspects, the search space sets of a CORESET may be of the same type. A first type of search space set may be configured with multiple frequency domain monitoring locations (e.g., the configuration of the search space set may include a frequency domain monitoring location parameter (freqMonitorLocations-r16)). A second type of search space set may not be configured with multiple frequency domain monitoring locations (e.g., the configuration of the search space set may not include a frequency domain monitoring location parameter (freqMonitorLocations-r16)).

[0068] Thus, all search space sets may be configured with multiple frequency domain monitoring positions, or none of the search space sets may be configured with multiple frequency domain monitoring positions. Furthermore, since they are of the same type, all search space sets may be on the same RB grid. In this way, UE 120, for example, upon receiving a CORESET configuration, can determine that the search space sets configured for a CORESET will be of the same type and include CCEs according to the same RB grid.

[0069] As indicated by reference numeral 415, BS 110 may transmit one or more PDCCHs to the UE on one or more PDCCH candidates of the search space set, and UE 120 may monitor the search space set for the one or more PDCCHs. For example, UE 120 may perform channel estimation on the CCEs of the CORESET while monitoring the search space set. Since the search space sets are of the same type, UE 120 may perform channel estimation with improved efficiency.

[0070] As indicated above, Figure 4 are provided as examples. Other examples may differ from those described in Figure 4 Examples described.

[0071] Figure 5 5 is a diagram illustrating an example 500 of a CORESET for NR-U according to various aspects of the present disclosure. Figure 5 As shown in , UE 120 and BS 110 can communicate in conjunction with PDCCH communication. In some aspects, UE 120 and BS 110 can operate in an unlicensed spectrum. For example, UE 120 and BS 110 can operate in NR-U.

[0072] As indicated by reference numeral 505, BS 110 may transmit and UE 120 may receive a CORESET configuration (e.g., via RRC signaling). The CORESET configuration may identify resources (e.g., RBs) included in the CORESET for UE 120. Accordingly, UE 120 may monitor the CORESET for PDCCH communications from BS 110 according to the CORESET configuration.

[0073] In some aspects, the frequency domain resources of a CORESET may be in multiple RB sets. The multiple RB sets may be in corresponding LBT bandwidths (i.e., the bandwidth in which the BS 110 performs LBT operations before transmitting). For example, a first RB set may be in a first LBT bandwidth, a second RB set may be in a second LBT bandwidth, and so on. In some aspects, the RB sets may be configured without a guard band between the RB sets (e.g., adjacent RB sets may have a guard band set of zero value).

[0074] As shown by reference numeral 510, BS110 may perform corresponding LBT operations on multiple RB sets including frequency domain resources of a CORESET. For example, BS110 may perform a first LBT operation on a first RB set, a second LBT operation on a second RB set, and so on. BS110 may use the LBT operation to determine whether the frequency domain resources (e.g., channels) of the RB set are idle for transmission by BS110 (e.g., when an energy measurement of the resource meets a threshold, the resource is idle). If BS110 performs the LBT operation on the frequency domain resources of the RB set and the resource is idle, this may be considered a successful LBT operation. If BS110 performs the LBT operation on the frequency domain resources of the RB set and the resource is not idle, this may be considered an unsuccessful LBT operation.

[0075] As indicated by reference numeral 515, BS 110 may selectively transmit PDCCH communications in the CORESET and UE 120 may selectively receive PDCCH communications in the CORESET based at least in part on whether corresponding LBT operations for multiple resource block sets are successful. In some aspects, when all LBT operations are successful, BS 110 may capture transmission opportunities in multiple RB sets and may transmit PDCCH communications in the transmission opportunities. In some aspects, when at least one LBT operation is unsuccessful, BS 110 may not transmit PDCCH communications. In this way, partial transmission of PDCCH communications may be avoided, thereby improving the performance of PDCCH communications.

[0076] As indicated above, Figure 5 are provided as examples. Other examples may differ from those described in Figure 5 Examples described.

[0077] Figure 6 FIG6 is a diagram illustrating an example process 600, performed, for example, by a UE, according to various aspects of the present disclosure. Example process 600 is an example of a UE (e.g., UE 120, etc.) performing operations associated with a CORESET for NR.

[0078] As in Figure 6 As shown in FIG, in some aspects, process 600 may include receiving a configuration of multiple search space sets for a CORESET, the multiple search space sets including one or more of a first type of search space set configured with multiple frequency domain monitoring locations or a second type of search space set not configured with multiple frequency domain monitoring locations (block 610). For example, a UE (e.g., using controller / processor 280, etc.) may receive a configuration of multiple search space sets for a CORESET, as described above. In some aspects, the multiple search space sets include one or more of a first type of search space set configured with multiple frequency domain monitoring locations or a second type of search space set not configured with multiple frequency domain monitoring locations.

[0079] like Figure 6 As further shown in FIG. 6 , in some aspects, process 600 may include receiving a PDCCH communication based at least in part on monitoring the plurality of search space sets in accordance with a determination that the CORESET is associated with the same type of search space set (block 620). For example, the UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) may receive a PDCCH communication based at least in part on monitoring the plurality of search space sets in accordance with a determination that the CORESET is associated with the same type of search space set, as described above.

[0080] Process 600 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0081] In a first aspect, the plurality of search space sets of the CORESET are not configured with a plurality of frequency domain monitoring positions.

[0082] In a second aspect, one or more of the plurality of search space sets are configured with a plurality of frequency domain monitoring locations.

[0083] In a third aspect, one or more of the plurality of search space sets are configured with a plurality of frequency domain monitoring positions, and one or more of the plurality of search space sets are not configured with a plurality of frequency domain monitoring positions.

[0084] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the CORESET is configured with a resource block offset.

[0085] In a fifth aspect, alone or in combination with one or more of the first to third aspects, the CORESET is not configured with a resource block offset.

[0086] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the UE operates in an unlicensed spectrum.

[0087] although Figure 6 Example blocks of process 600 are shown, but in some aspects, process 600 may include Figure 6 6. In some embodiments, the process 600 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in FIG. Additionally or alternatively, two or more blocks of process 600 may be executed in parallel.

[0088] Figure 7 7 is a diagram illustrating an example process 700, for example, performed by a BS, in accordance with various aspects of the present disclosure. Example process 700 is an example of a BS (eg, BS 110, etc.) performing operations associated with a CORESET for NR.

[0089] As in Figure 7As shown in FIG, in some aspects, process 700 may include transmitting a configuration of multiple search space sets for a CORESET, the multiple search space sets including one or more of a first type of search space set configured with multiple frequency domain monitoring locations or a second type of search space set not configured with multiple frequency domain monitoring locations (block 710). For example, a BS (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may transmit a configuration of multiple search space sets for a CORESET, as described above. In some aspects, the multiple search space sets include one or more of a first type of search space set configured with multiple frequency domain monitoring locations or a second type of search space set not configured with multiple frequency domain monitoring locations.

[0090] like Figure 7 As further shown in FIG. 7 , in some aspects, process 700 may include transmitting a PDCCH communication in the CORESET based at least in part on the CORESET being associated with a search space set of the same type (block 720). For example, the BS (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may transmit a PDCCH communication in the CORESET based at least in part on the CORESET being associated with a search space set of the same type, as described above.

[0091] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0092] In a first aspect, the plurality of search space sets of the CORESET are not configured with a plurality of frequency domain monitoring positions.

[0093] In a second aspect, one or more of the plurality of search space sets are configured with a plurality of frequency domain monitoring locations.

[0094] In a third aspect, one or more of the plurality of search space sets are configured with a plurality of frequency domain monitoring positions, and one or more of the plurality of search space sets are not configured with a plurality of frequency domain monitoring positions.

[0095] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the CORESET is configured with a resource block offset.

[0096] In a fifth aspect, alone or in combination with one or more of the first to third aspects, the CORESET is not configured with a resource block offset.

[0097] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the UE operates in an unlicensed spectrum.

[0098] although Figure 7 Example blocks of process 700 are shown, but in some aspects, process 700 may include Figure 7 7. In some embodiments, the process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in FIG. Additionally or alternatively, two or more blocks of process 700 may be executed in parallel.

[0099] Figure 8 FIG8 is a diagram illustrating an example process 800 performed, for example, by a UE in accordance with various aspects of the present disclosure. Example process 800 is an example of a UE (e.g., UE 120, etc.) performing operations associated with a CORESET for NR.

[0100] As in Figure 8 As shown in FIG, in some aspects, process 800 may include monitoring a CORESET for PDCCH communications, the CORESET having frequency-domain resources in a plurality of resource block sets (block 810). For example, a UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) may monitor a CORESET for PDCCH communications, the CORESET having frequency-domain resources in a plurality of resource block sets, as described above.

[0101] like Figure 8 As further shown in FIG. 8 , in some aspects, process 800 may include selectively receiving PDCCH communications in the CORESET based at least in part on whether corresponding LBT operations for the plurality of resource block sets are successful (block 820). For example, the UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) may selectively receive PDCCH communications in the CORESET based at least in part on whether corresponding LBT operations for the plurality of resource block sets are successful, as described above.

[0102] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0103] In a first aspect, the UE operates in an unlicensed spectrum. In a second aspect, alone or in combination with the first aspect, a plurality of resource blocks are set in a corresponding LBT bandwidth.

[0104] In a third aspect, alone or in combination with one or more of the first and second aspects, PDCCH communication is received when all LBT operations are successful. In a fourth aspect, alone or in combination with one or more of the first to third aspects, PDCCH communication is not received when at least one LBT operation is unsuccessful.

[0105] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, a plurality of resource block sets are configured without a guard band between the resource block sets.

[0106] although Figure 8 Example blocks of process 800 are shown, but in some aspects, process 800 may include Figure 8 8. In some embodiments, the process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in FIG. Additionally or alternatively, two or more blocks of process 800 may be executed in parallel.

[0107] Figure 9 9 is a diagram illustrating an example process 900, for example, performed by a BS, in accordance with various aspects of the present disclosure. Example process 900 is an example of a BS (eg, BS 110, etc.) performing operations associated with a CORESET for NR.

[0108] As in Figure 9 As shown in FIG, in some aspects, process 900 may include performing respective LBT operations for a plurality of sets of resource blocks comprising frequency-domain resources of a CORESET (block 910). For example, a BS (e.g., using controller / processor 240, etc.) may perform respective LBT operations for a plurality of sets of resource blocks comprising frequency-domain resources of a CORESET, as described above.

[0109] like Figure 9 As further shown in FIG. 9 , in some aspects, process 900 may include selectively transmitting PDCCH communications in the CORESET based at least in part on whether corresponding LBT operations for the plurality of resource block sets are successful (block 920). For example, the BS (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antennas 234, etc.) may selectively transmit PDCCH communications in the CORESET based at least in part on whether corresponding LBT operations for the plurality of resource block sets are successful, as described above.

[0110] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0111] In a first aspect, the BS operates in an unlicensed spectrum.In a second aspect, alone or in combination with the first aspect, the plurality of resource block sets are in a corresponding LBT bandwidth.

[0112] In a third aspect, alone or in combination with one or more of the first and second aspects, when all LBT operations are successful, PDCCH communications are transmitted. In a fourth aspect, alone or in combination with one or more of the first to third aspects, when at least one LBT operation is unsuccessful, PDCCH communications are not transmitted.

[0113] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, a plurality of resource block sets are configured without a guard band between the resource block sets.

[0114] although Figure 9 Example blocks of process 900 are shown, but in some aspects, process 900 may include Figure 9 900. Additionally or alternatively, two or more blocks of process 900 may be executed in parallel.

[0115] The following provides an overview of some aspects of the disclosure:

[0116] Aspect 1: A wireless communication method performed by a user equipment (UE), comprising: receiving a configuration of multiple search space sets for a control resource set (CORESET), the multiple search space sets including one or more of a first type of search space set configured with multiple frequency domain monitoring positions or a second type of search space set not configured with multiple frequency domain monitoring positions; and receiving a physical downlink control channel (PDCCH) communication based at least in part on monitoring the multiple search space sets based on determining that the CORESET is associated with the same type of search space set.

[0117] Aspect 2: The method of Aspect 1, wherein the multiple search space sets of the CORESET are not configured with multiple frequency domain monitoring positions.

[0118] Aspect 3: The method of Aspect 1, wherein one or more of the multiple search space sets are configured with multiple frequency domain monitoring positions.

[0119] Aspect 4: The method of aspect 1, wherein one or more of the multiple search space sets are configured with multiple frequency domain monitoring positions, and one or more of the multiple search space sets are not configured with multiple frequency domain monitoring positions.

[0120] Aspect 5: The method according to any one of aspects 1 to 4, wherein the CORESET is configured with a resource block offset.

[0121] Aspect 6: The method according to any one of aspects 1 to 4, wherein the CORESET is not configured with a resource block offset.

[0122] Aspect 7: The method according to any one of aspects 1-6, wherein the UE operates in an unlicensed spectrum.

[0123] Aspect 8: A wireless communication method performed by a base station (BS), comprising: transmitting a configuration of multiple search space sets for a control resource set (CORESET), the multiple search space sets including one or more of a first type of search space set configured with multiple frequency domain monitoring positions or a second type of search space set not configured with multiple frequency domain monitoring positions; and transmitting a physical downlink control channel (PDCCH) communication in the CORESET based at least in part on the CORESET being associated with a search space set of the same type.

[0124] Aspect 9: The method of Aspect 8, wherein the multiple search space sets of the CORESET are not configured with multiple frequency domain monitoring positions.

[0125] Aspect 10: The method of aspect 8, wherein one or more of the plurality of search space sets are configured with a plurality of frequency domain monitoring locations.

[0126] Aspect 11: The method of aspect 8, wherein one or more of the multiple search space sets are configured with multiple frequency domain monitoring positions, and one or more of the multiple search space sets are not configured with multiple frequency domain monitoring positions.

[0127] Aspect 12: The method according to any one of aspects 8 to 11, wherein the CORESET is configured with a resource block offset.

[0128] Aspect 13: The method according to any one of aspects 8 to 11, wherein the CORESET is not configured with a resource block offset.

[0129] Aspect 14: The method of any one of aspects 8-13, wherein the BS operates in an unlicensed spectrum.

[0130] Aspect 15: A wireless communication method performed by a user equipment (UE), comprising: monitoring a control resource set (CORESET) to search for a physical downlink control channel (PDCCH) communication, the CORESET having frequency domain resources in a plurality of resource block sets; and selectively receiving the PDCCH communication in the CORESET based at least in part on whether a corresponding listen-before-talk (LBT) operation for the plurality of resource block sets is successful.

[0131] Aspect 16: The method of aspect 15, wherein the UE operates in an unlicensed spectrum.

[0132] Aspect 17: The method according to any one of aspects 15-16, wherein the plurality of resource block sets are in a corresponding LBT bandwidth.

[0133] Aspect 18: The method of any one of aspects 15-17, wherein the PDCCH communication is received when all LBT operations are successful.

[0134] Aspect 19: The method of any one of aspects 15-17, wherein when at least one LBT operation is unsuccessful, the PDCCH communication is not received.

[0135] Aspect 20: The method according to any one of aspects 15 to 19, wherein the plurality of resource block sets are configured without a guard band between the resource block sets.

[0136] Aspect 21: A wireless communication method performed by a base station (BS), comprising: performing corresponding listen-before-talk (LBT) operations on multiple resource block sets of frequency domain resources including a control resource set (CORESET); and selectively transmitting physical downlink control channel (PDCCH) communications in the CORESET based at least in part on whether the corresponding LBT operations on the multiple resource block sets are successful.

[0137] Aspect 22: The method of Aspect 21, wherein the BS operates in an unlicensed spectrum.

[0138] Aspect 23: The method according to any one of aspects 21-22, wherein the plurality of resource block sets are in a corresponding LBT bandwidth.

[0139] Aspect 24: The method of any one of aspects 21-23, wherein the PDCCH communication is transmitted when all LBT operations are successful.

[0140] Aspect 25: The method of any one of aspects 21-23, wherein when at least one LBT operation is unsuccessful, the PDCCH communication is not transmitted.

[0141] Aspect 26: The method according to any one of aspects 21-25, wherein the plurality of resource block sets are configured without a guard band between the resource block sets.

[0142] Aspect 27: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as in one or more aspects of aspects 1-7.

[0143] Aspect 28: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more aspects of aspects 1-7.

[0144] Aspect 29: An apparatus for wireless communication, comprising at least one means for performing the method of one or more aspects of aspects 1-7.

[0145] Aspect 30: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more aspects of aspects 1-7.

[0146] Aspect 31: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects of aspects 1-7.

[0147] Aspect 32: An apparatus for wireless communication at a device, 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 one or more aspects of aspects 8-14.

[0148] Aspect 33: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the method of one or more aspects of aspects 8-14.

[0149] Aspect 34: An apparatus for wireless communication, comprising at least one means for performing the method of one or more aspects of aspects 8-14.

[0150] Aspect 35: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more aspects of aspects 8-14.

[0151] Aspect 36: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects of aspects 8-14.

[0152] Aspect 37: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as in one or more aspects of aspects 15-20.

[0153] Aspect 38: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more aspects of aspects 15-20.

[0154] Aspect 39: An apparatus for wireless communication, comprising at least one means for performing the method of one or more aspects of aspects 15-20.

[0155] Aspect 40: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more aspects of aspects 15-20.

[0156] Aspect 41: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects of aspects 15-20.

[0157] Aspect 42: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as in one or more aspects of aspects 21-26.

[0158] Aspect 43: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more aspects of aspects 21-26.

[0159] Aspect 44: An apparatus for wireless communication, comprising at least one means for performing the method of one or more aspects of aspects 21-26.

[0160] Aspect 45: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more aspects of aspects 21-26.

[0161] Aspect 46: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects of aspects 21-26.

[0162] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.

[0163] As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented using hardware, firmware, and / or a combination of hardware and software.

[0164] As used herein, satisfying a threshold may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0165] It will be apparent that the systems and / or methods described herein can be implemented in various forms of hardware, firmware, and / or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit the aspects. Thus, the operation and behavior of these systems and / or methods are described herein without reference to specific software code—it is understood that software and hardware can be designed to implement these systems and / or methods based, at least in part, on the description herein.

[0166] Although specific feature combinations are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the various aspects. In fact, many of these features can be combined in a manner not specifically described in the claims and / or not disclosed in the specification. Although each dependent claim listed below can be directly subordinate to only one claim, the disclosure of the various aspects includes that each dependent claim is combined with each other claim in this group of claims. The phrase quoting "at least one of" a list of items refers to any combination of these items, including single members. As an example, "at least one of a, b or c" is intended to cover: a, b, c, ab, ac, bc, and abc, as well as any combination with multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other arrangement of a, b and c).

[0167] Elements, actions or instructions used herein should not be interpreted as critical or necessary unless explicitly described as such. Moreover, as used herein, the articles "one" and "a" are intended to include one or more items and can be used interchangeably with "one or more". Furthermore, as used herein, the terms "set" and "group" are intended to include one or more items (e.g., related items, non-related items, a combination of related and non-related items, etc.) and can be used interchangeably with "one or more". Where intended to have only one item, the phrase "only one" or similar language is used. Furthermore, as used herein, the terms "having", "containing", "comprising" etc. are intended to be open terms. Furthermore, the phrase "based on" is intended to mean "based at least in part on", unless otherwise explicitly stated.

Claims

1. A user equipment (UE) for wireless communication, comprising: one or more memories; as well as one or more processors coupled to the one or more memories, the one or more processors configured to: Receiving a configuration of a plurality of search space sets for a control resource set CORESET, wherein the plurality of search space sets include: at least one first search space set of a first type configured with a frequency domain monitoring position parameter, or at least one second search space set of a second type not configured with the frequency domain monitoring position parameter, and wherein the frequency domain monitoring position parameter configures a plurality of frequency domain monitoring positions; as well as Based on determining that the CORESETs are associated with the same type of search space sets, a Physical Downlink Control Channel (PDCCH) communication is received based at least in part on monitoring the plurality of search space sets. 2 . The UE according to claim 1 , wherein the at least one first search space set is configured with the frequency domain monitoring location parameter. 3 . The UE according to claim 1 , wherein the at least one second search space set is configured without the frequency domain monitoring position parameter.

4. The UE of claim 1 , wherein the CORESET is located in a bandwidth portion and comprises a plurality of resource block sets located in the bandwidth portion, and wherein each of the plurality of frequency domain monitoring locations corresponds to one resource block set of the plurality of resource block sets. The UE according to claim 1 , wherein the CORESET is configured with a resource block offset. The UE of claim 1 , wherein the CORESET is not configured with a resource block offset.

7. The UE of claim 1, wherein the UE operates in an unlicensed spectrum.

8. A wireless communication method performed by a user equipment (UE), comprising: receiving a configuration of a plurality of search space sets for a control resource set CORESET, wherein the plurality of search space sets include: at least one first search space set of a first type configured with a frequency domain monitoring position parameter, or at least one second search space set of a second type not configured with the frequency domain monitoring position parameter, and wherein the frequency domain monitoring position parameter configures a plurality of frequency domain monitoring positions; and Based on determining that the CORESETs are associated with the same type of search space sets, a Physical Downlink Control Channel (PDCCH) communication is received based at least in part on monitoring the plurality of search space sets.

9. The method of claim 8, wherein the at least one first search space set is configured with a plurality of frequency domain monitoring positions.

10. The method of claim 8, wherein the at least one second search space set is configured without a plurality of frequency domain monitoring locations.

11. The method of claim 8, wherein the CORESET is located in a bandwidth portion and comprises a plurality of resource block sets located in the bandwidth portion, and wherein each of the plurality of frequency domain monitoring locations corresponds to one resource block set of the plurality of resource block sets.

12. The method of claim 8, wherein the CORESET is configured with a resource block offset.

13. The method of claim 8, wherein the CORESET is not configured with a resource block offset.

14. The method of claim 8, wherein the UE operates in an unlicensed spectrum.

15. A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising: One or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to: receiving a configuration of a plurality of search space sets for a control resource set CORESET, wherein the plurality of search space sets include: at least one first search space set of a first type configured with a frequency domain monitoring position parameter, or at least one second search space set of a second type not configured with the frequency domain monitoring position parameter, and wherein the frequency domain monitoring position parameter configures a plurality of frequency domain monitoring positions; and Based on determining that the CORESETs are associated with the same type of search space sets, a Physical Downlink Control Channel (PDCCH) communication is received based at least in part on monitoring the plurality of search space sets.

16. The non-transitory computer-readable medium of claim 15, wherein the at least one first search space set is configured with the frequency domain monitoring location parameters. 17 . The non-transitory computer-readable medium of claim 15 , wherein the at least one second search space set is configured without the frequency domain monitoring location parameter.

18. The non-transitory computer-readable medium of claim 15, wherein the CORESET is configured with a resource block offset.

19. The non-transitory computer-readable medium of claim 15, wherein the CORESET is not configured with a resource block offset.

20. The non-transitory computer-readable medium of claim 15, wherein the UE operates in an unlicensed spectrum.

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