Coverage enhancement for physical downlink control channel (PDCCH) and physical downlink shared channel (PDSCH)

Abstract

A method for wireless communication performed by a user equipment (UE) includes receiving a physical broadcast channel (PBCH). The method also includes receiving a plurality of control resource sets (CORESETs) based on the received PBCH. The method further includes receiving one or more physical downlink control channels (PDCCHs) based on receiving the plurality of CORESETs.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to U.S. Patent Application No. 17 / 157,923, filed January 25, 2021, entitled “COVERAGE ENHANCEMENTS FOR PHYSICAL DOWNLINK CONTROL CHANNEL (PDCCH) AND PHYSICAL DOWNLINK SHARED CHANNEL (PDSCH)”, the entire contents of which are expressly incorporated herein by reference. Technical Field

[0003] In general, aspects of this disclosure relate to wireless communications, and more specifically, aspects of this disclosure relate to technologies and apparatus for enhancing 5G New Radio (NR) coverage for the Physical Downlink Control Channel (PDCCH) and Physical Downlink Shared Channel (PDSCH). Background Technology

[0004] Wireless communication systems have been widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that support 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 issued by the 3rd Generation Partnership Project (3GPP).

[0005] A wireless communication network may include multiple base stations (BSs), which can support communication between multiple user equipment (UEs). UEs can communicate with BSs via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, while an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail, a BS may be referred to as a Node B, gNB, Access Point (AP), Radio Headend, Transmitter-Receiver Point (TRP), New Radio (NR) BS, 5G Node B, etc.

[0006] The above multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different user equipment to communicate across city limits, countries, regions, and even globally. New Radio (NR) (which can also be called 5G) is an evolution set of the LTE mobile standard released by the 3rd Generation Partnership Project (3GPP). NR is designed to better support mobile broadband internet access by improving spectral efficiency, reducing costs, enhancing service, fully utilizing new spectrum, using Orthogonal Frequency Division Multiplexing (OFDM) with a Cyclic Prefix (CP) on the downlink, using CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Spread Spectrum OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies, and carrier aggregation. Summary of the Invention

[0007] In one aspect of this disclosure, a method for wireless communication at a UE includes receiving a physical broadcast channel (PBCH). The method further includes receiving a plurality of control resource sets (CORESETs) based on the received PBCH. The method also includes receiving one or more physical downlink control channels (PDSCHs) based on receiving the plurality of CORESETs.

[0008] Another aspect of this disclosure relates to an apparatus for wireless communication at a UE. The apparatus includes: a unit for receiving a PBCH. The apparatus further includes: a unit for receiving a plurality of CORESETs based on the received PBCH. The apparatus further includes: a unit for receiving one or more Physical Downlink Control Channels (PDSCHs) based on receiving the plurality of CORESETs.

[0009] In another aspect of this disclosure, a non-transitory computer-readable medium having non-transitory program code recorded thereon for wireless communication is disclosed. The program code is executed by a processor and includes program code for receiving a PBCH. The program code further includes program code for receiving a plurality of CORESETs based on the received PBCH. The program code also includes program code for receiving one or more PDSCHs based on receiving the plurality of CORESETs.

[0010] Another aspect of this disclosure relates to an apparatus for wireless communication at a UE. The apparatus includes a processor and a memory coupled to the processor. The apparatus also includes instructions stored in the memory, which, when executed by the processor, can be used to cause the apparatus to receive a PBCH. The instructions further cause the apparatus to receive a plurality of CORESETs based on the received PBCHs. The instructions further cause the apparatus to receive one or more PDSCHs based on receiving the plurality of CORESETs.

[0011] Aspects of this document generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and processing systems, as fully described herein with reference to the accompanying drawings and description, and as illustrated in the drawings and description.

[0012] To better understand the following detailed description, the features and technical advantages of the examples according to this disclosure have been generally summarized above. Further features and advantages will be described. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures to perform the same purpose as this disclosure. These equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (regarding their organization and operation) and the associated advantages will be better understood when considering the following detailed description in conjunction with the accompanying drawings. Each of these drawings is provided for illustrative and descriptive purposes only and is not intended to limit the invention. Attached Figure Description

[0013] To provide a detailed understanding of the features of this disclosure, reference has been made to several aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that since the description of the invention allows for other equivalent and effective aspects, these drawings depict only certain aspects of the disclosure and should not be considered as limiting the scope of protection of the invention. Identical reference numerals in different drawings may identify the same or similar elements.

[0014] Figure 1 This is a block diagram that conceptually illustrates an example of a wireless communication network based on various aspects of this disclosure.

[0015] Figure 2 This is a block diagram that conceptually illustrates an example of communication between a base station and a user equipment (UE) in a wireless communication network, based on various aspects of this disclosure.

[0016] Figure 3 A diagram of a synchronization signal block (SSB) is shown in accordance with various aspects of this disclosure.

[0017] Figure 4A and Figure 4B This is a block diagram illustrating an example of a beam for controlling a resource set (CORESET) in accordance with various aspects of this disclosure.

[0018] Figure 5A and Figure 5B This is a block diagram illustrating an example of downlink control information (DCI) transmitted in CORESET, based on various aspects of this disclosure.

[0019] Figure 6 This is a block diagram illustrating an exemplary new table for configuring multiple CORESETs, based on various aspects of this disclosure.

[0020] Figure 7A and Figure 7B This is a block diagram illustrating an example of a series of CORESETs based on various aspects of this disclosure.

[0021] Figure 8A and Figure 8B This is a block diagram illustrating an example of transmitting a Physical Downlink Shared Channel (PDSCH) based on various aspects of this disclosure.

[0022] Figure 8C This is a block diagram illustrating an example of sending a PDSCH, based on various aspects of this disclosure.

[0023] Figure 9 The flowchart illustrates, for example, an example process performed by a user equipment (UE) in accordance with various aspects of this disclosure. Detailed Implementation

[0024] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms and should not be construed as limited to any particular structure or function given throughout this disclosure. Rather, these aspects are provided only to make this disclosure thorough and complete, and to fully convey the scope of protection of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art should understand that the scope of protection of this disclosure is intended to cover any aspect of this disclosure, whether implemented independently or in combination with any other aspect of this disclosure. For example, an apparatus or method may be implemented using any number of the aspects described. Furthermore, the scope of protection of this disclosure is intended to cover such apparatus or methods that may be implemented using other structures, functions, or structures and functions other than those of the aspects of this disclosure described, or structures and functions different from those of the aspects of this disclosure described. It should be understood that any aspect of the disclosed content may be embodied by one or more components of the invention.

[0025] The following describes some aspects of a telecommunications system with reference to various devices and techniques. These devices and techniques will be described in the following detailed embodiments and depicted 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 any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0026] It should be noted that although terms commonly associated with 5G and later wireless technologies are used to describe the aspects, the aspects of this disclosure can also be applied to communication systems based on other generations, such as and including 3G and / or 4G technologies.

[0027] In some cases, UEs in low coverage areas may have difficulty receiving one or more channels such as the Physical Broadcast Channel (PBCH), Physical Downlink Control Channel (PDCCH), and / or Physical Downlink Shared Channel (PDSCH). It may be desirable to improve coverage and / or channel recovery for low-coverage UEs. In some cases, multiple PBCHs can be combined to improve reliability and coverage. For example, combining four PBCHs can increase channel strength by approximately six dB. The PBCH can be scheduled to search for spatial locations and control resource sets (CORESET) carrying the Physical Downlink Control Channel (PDCCH). The search space can be search space 0, and the control resource set (CORESET) can be CORESET 0. The PDCCH may include downlink control information (DCI), such as DCI 1_0. The DCI may include system information - radio network temporary identifier (SI-RNTI). Additionally, the DCI may schedule system information blocks (SIBs) of the PDSCH (e.g., SIB1). Aspects of this disclosure are intended to improve the coverage and recovery of PDCCHs (e.g., type 0 PDCCH).

[0028] Figure 1This diagram illustrates a network 100 in which various aspects of this disclosure can be practiced. Network 100 may be a 5G or NR network, or some other wireless network (e.g., an LTE network). Wireless network 100 may include multiple 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 a user equipment (UE), and may also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, Transmitter Receiver Point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, depending on the context in which the term "cell" is used, the term "cell" may refer to the coverage area of ​​a BS and / or the BS subsystem serving that coverage area.

[0029] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell can cover a relatively large geographic area (e.g., a radius of several kilometers), allowing unrestricted access for UEs with service subscriptions. A picocell can cover a relatively small geographic area, allowing unrestricted access for UEs with service subscriptions. A femtocell can cover a relatively small geographic area (e.g., a home), allowing restricted access for UEs associated with that femtocell (e.g., UEs in a closed user group (CSG)). A BS used for macrocells can be called a macro BS. A BS used for picocells can be called a pico BS. A BS used for femtocells can be called a femto BS or a home BS. Figure 1 In the example shown, BS 110a can be a macro BS for macro cell 102a, BS 110b can be a pico BS for pico cell 102b, and BS 110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” are used interchangeably.

[0030] In some respects, the cell does not need to be stationary; the geographical area of ​​the cell can move depending on the location of the mobile BS. In some respects, BSs can use any suitable transport network to interconnect with each other and / or interconnect to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (e.g., direct physical connections, virtual networks, etc.).

[0031] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and transmit those data transmissions to a downstream station (e.g., a UE or a BS). A relay station can also be a UE capable of relaying transmissions from other UEs. Figure 1 In the example shown, relay station 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay station can also be called a relay BS, relay base station, repeater, etc.

[0032] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs can have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs can have higher transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs can have lower transmit power levels (e.g., 0.1 to 2 watts).

[0033] For example, BS 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and core network 130 can exchange communication via backhaul link 132 (e.g., S1, etc.). Base station 110 can communicate with each other directly or indirectly (e.g., via core network 130) via other backhaul links (e.g., X2, etc.).

[0034] 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 be a control node handling signaling between UE 120 and the EPC. All user IP packets can be transmitted through the S-GW, which itself can connect to the P-GW. The P-GW can provide IP address allocation and other functions. The P-GW can connect to the network operator's IP services. The operator's IP services may include the Internet, intranet, IP Multimedia Subsystem (IMS), and packet-switched (PS) streaming services.

[0035] Core network 130 can provide user authentication, access authorization, tracking, IP connectivity, and other access, routing, or mobility functions. One or more of base stations 110 or access node controllers (ANCs) can interface with core network 130 via backhaul links 132 (e.g., S1, S2, etc.) and can perform radio configuration and scheduling for communication with UE 120. In some configurations, the various functions of each access network entity or base station 110 can be distributed across various network devices (e.g., radio headends and access network controllers) or consolidated into a single network device (e.g., base station 110).

[0036] UEs 120 (e.g., 120a, 120b, 120c) may be distributed 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, user 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 device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biosensor / device, a wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device or a satellite radio device), an in-vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0037] One or more UEs 120 can establish Protocol Data Unit (PDU) sessions for network slices. In some cases, UE 120 can select network slices based on application or subscription services. By serving different applications or subscriptions with different network slices, UE 120 can improve its resource utilization in the wireless communication system 100 while also meeting the performance specifications of the various applications of UE 120. In some cases, this can be achieved through AMFs (Active Application Functions) associated with one or two of the base station 110 or core network 130. Figure 1 (Not shown in the image) to serve the network slice used by UE 120. Furthermore, session management of the network slice can be performed by the Access and Mobility Management Function (AMF).

[0038] UE 120 may include coverage module 140. For simplicity, only one UE 120d is shown as including coverage module 140. Coverage module 140 may receive a physical broadcast channel (PBCH). Coverage module 140 may also receive multiple control resource sets (CORESETs) based on the received PBCH. Coverage module 140 may also receive one or more physical downlink control channels (PDSCHs) based on the received multiple CORESETs.

[0039] Base station 110a may include CORESET module 142. For simplicity, only one base station 110a is shown as including CORESET module 142. CORESET module 142 can transmit PBSCH, transmit multiple CORESET based on the transmitted PBCH, and transmit one or more PDSCH based on the transmission of multiple CORESET.

[0040] Some UEs can be considered as Machine-Type Communication (MTC) or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. For example, MTC UEs and eMTC UEs may include robots, drones, remote devices, sensors, meters, monitors, location tags, etc., capable of communicating with a base station, another device (e.g., a remote device), or some other entity. For example, 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) via wired or wireless communication links. Some UEs can be considered Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs can be considered Customer Premises Equipment (CPE). UE 120 may be included in a housing that houses the components of UE 120 (e.g., processor components, memory components, etc.).

[0041] Typically, any number of wireless networks can be deployed within a given geographical area. Each wireless network can support a specific Radio Access Technology (RAT) and can operate on one or more frequencies. A RAT can also be called a radio technology, air interface, etc. A frequency can also be called a carrier, frequency channel, etc. Each frequency can support a single RAT within a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0042] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more lateral link channels (e.g., without using base station 110 as an intermediary device). For example, UE 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 case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein, performed by base station 110. For example, base station 110 may configure UE 120 via downlink control information (DCI), radio resource control (RRC) signaling, media access control-control element (MAC-CE), or via system information (e.g., system information block (SIB)).

[0043] As indicated above, Figure 1 This is just one example. Other examples can be found in the references. Figure 1 The examples described are different.

[0044] Figure 2 A block diagram of a design scheme 200 for base station 110 and UE 120 is shown, wherein base station 110 and UE 120 can be Figure 1 One of the base stations in the middle and Figure 1 One of the UEs in the system. Base station 110 may be equipped with T-type antennas 234a to 234t, and UE 120 may be equipped with R-type antennas 252a to 252r (where T ≥ 1 and R ≥ 1).

[0045] At base station 110, transmit processor 220 can receive data from data source 212 intended for one or more UEs, select one or more modulation and coding schemes (MCS) for the UE based at least in part on channel quality indicators (CQI) received from the UE, process the data for the UE (e.g., coding and modulation) based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. Reducing the MCS decreases throughput but increases transmission reliability. Transmit processor 220 can also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper-layer signaling, etc.), and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​these data symbols, control symbols, overhead symbols, and / or reference symbols (if any), and provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can process its own output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 can also process (e.g., convert to analog signal, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted respectively via T antennas 234a to 234t. According to the aspects described in more detail below, position coding can be used to generate synchronization signals to transmit other information.

[0046] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations and can provide the received signals to demodulators (DEMODs) 254a to 254r. Each demodulator 254 can adjust (e.g., filter, amplify, down-convert, and digitize) its respective received signal to obtain an input sample. Each demodulator 254 can also process these input samples (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection (if any) on the received symbols, and provide the detected symbols. Receiver processor 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The channel processor can determine the Received Reference Signal Power (RSRP), Received Signal Strength Indicator (RSSI), Received Reference Signal Quality (RSRQ), Channel Quality Indicator (CQI), and so on. In some respects, one or more components of the UE 120 may be contained within a housing.

[0047] On the uplink, at UE 120, transmit processor 264 can receive data from data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.) from controller / processor 280, and process the data and control information. Transmit processor 264 can also generate reference symbols for one or more reference signals. Symbols from transmit processor 264 can be pre-encoded (if any) by TX MIMO processor 266, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted back to base station 110. At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 254, detected (if any) by MIMO detector 236, and further processed by receive processor 238 to obtain decoded data and control information transmitted by UE 120. The receiving processor 238 can provide decoded data to the data sink 239 and decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244, and communicates with the core network 130 via the communication unit 244. The core network 130 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0048] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2Any other component may perform one or more techniques associated with combining multiple physical broadcast channels (PBCH) to improve reception of the physical downlink control channel (PDCCH) and physical downlink shared channel (PDSCH), as described further in detail elsewhere. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component can perform or direct, for example Figure 9 The system handles the processing and / or other processing as described herein. Memory 242 and 282 can store data and program code for base station 110 and UE 120, respectively. Scheduler 246 can schedule data transmission by the UE on the downlink and / or uplink.

[0049] In some aspects, UE 120 may include: a unit for receiving a Physical Broadcast Channel (PBCH); a unit for receiving multiple Control Resource Sets (CORESETs) based on the received PBCH; and a unit for receiving one or more Physical Downlink Control Channels (PDSCHs) based on receiving the multiple CORESETs. Additionally, base station 110 may include: a unit for transmitting a PBCH; a unit for transmitting multiple CORESETs based on the transmitted PBCH; and a unit for transmitting one or more PDSCHs based on transmitting the multiple CORESETs. Such units may include combinations of... Figure 2 The UE 120 or one or more components of the base station 110 described.

[0050] As indicated above, Figure 2 This is just one example. Other examples can be found in the references. Figure 2 The examples described are different.

[0051] In 3GPP Release 15 and later, the Synchronization Signal Block (SSB) can be used for initial cell search. The SSB can also be referred to as the Synchronization Signal (SS) and Physical Broadcast Channel (PBCH) block. Figure 3 This is a block diagram illustrating examples of the SSB300 according to various aspects of this disclosure. For example... Figure 3 As shown, the SSB 300 spans four Orthogonal Frequency Division Multiplexing (OFDM) symbols (0-3). Figure 3 In the example, the primary synchronization signal (PSS) 302 can be transmitted on one symbol, the PBCH 304 can be transmitted separately on two different symbols, and the frequency division multiplexing (FDM) auxiliary synchronization signal (SSS) 306 and PBCH 304 can be used on one symbol. Figure 3In the example, PSS 302 and SSS 306 may be located in the center subcarrier of the carrier (e.g., subcarriers 56 to 182). PBCH 304 may be transmitted on the full range of subcarriers (e.g., subcarriers 0 to 239) or a subset of subcarriers (e.g., subcarriers 0 to 47 and / or subcarriers 192 to 239).

[0052] PSS 302, SSS 306, and PBCH 304 can be transmitted with different subcarrier spacings (SCS) (e.g., carrier tone spacing) for different frequency ranges. For example, for frequency range 1 (FR1), the SCS could be 15 kHz or 30 kHz. As another example, for frequency range 2 (FR2), the SCS could be 120 kHz or 240 kHz. The PSS can be generated based on an M-sequence of length 127 in the frequency domain and can have three possible sequences. In one example, PSS 302 can be mapped to 127 subcarriers (SCs). Furthermore, SSS 306 can be generated based on a Gold code sequence of length 127 in the frequency domain (e.g., two M-sequences) and can have 1008 possible sequences. PBCH 304 can be quadrature phase-shift keying (QPSK) modulated and can be coherently demodulated using an associated demodulation reference signal (DMRS).

[0053] During the initial cell search, the UE can use a sliding window and correlation techniques to search for PSS 302. For each timing assumption, the UE can try all three sequences and N frequency assumptions to account for Doppler, internal clock frequency offset, and any other frequency errors. For example, the base station can send PSS 302 and SSS 306, and the UE can synchronize with the base station based on PSS 302 and SSS 306. In this example, PSS 302 can achieve synchronization of time slot timing and can indicate the physical layer identification value. The UE can receive SSS 306 after receiving PSS 302. SSS 306 can achieve radio frame synchronization and can provide a cell identification value, which can be combined with the physical layer identification value to identify the cell. SSS 306 also enables the detection of duplex mode and cyclic prefix length.

[0054] After receiving PSS 302 and SSS 306, the UE can receive the Master Information Block (MIB) that can be transmitted in PBCH 304. The MIB may contain system bandwidth information, system frame number (SFN), and Physical Channel Hybrid Automatic Repeat Request (HARQ) Indicator Channel (PHICH) configuration. After decoding the MIB, the UE can receive one or more System Information Blocks (SIBs). For example, SIB1 may contain cell access parameters and scheduling information for other SIBs. The UE can receive SIB2 after decoding SIB1. SIB2 may contain Radio Resource Control (RRC) configuration information related to the Random Access Channel (RACH) procedure, paging, PUCCH, PUSCH, power control, SRS, and cell prohibition.

[0055] In some wireless systems, such as 3GPP Release 15 Radio Systems, Frequency Range 2 (FR2) can use one of three multiplexing modes to multiplex the Synchronization Signal Block (SSB) and Control Resource Set 0 (CORESET0). For example, in the first multiplexing mode, the SSB and CORESET0 symbols are time-division multiplexed (TDM). In the second multiplexing mode, the SSB and CORESET0 use different subcarrier spacings and undergo both frequency-division multiplexing and time-division multiplexing. In the third multiplexing mode, the SSB and CORESET0 use the same subcarrier spacing and undergo frequency-division multiplexing.

[0056] As mentioned earlier, the UE can decode the SIB after decoding the MIB. For example, the MIB may include an SIB configuration (pdcch-ConfigSIB1) which includes four bits for CORESET0 (controlResourceSetZero). The CORESET0 bits can indicate the multiplexing mode, frequency offset, number of resource blocks, and number of symbols specified for CORESET0. The SIB configuration may also include four bits dedicated to searchSpaceZero. The four bits of searchSpaceZero identify the time position used for CORESET0. In most cases, CORESET0 can be one, two, or three symbols long and can occupy 24, 48, or 96 resource blocks (RBs).

[0057] In some cases, UEs in low coverage areas may have difficulty receiving one or more channels such as the Physical Broadcast Channel (PBCH), Physical Downlink Control Channel (PDCCH), and / or Physical Downlink Shared Channel (PDSCH). It may be desirable to improve coverage and / or channel recovery for low-coverage UEs. In some cases, multiple PBCHs can be combined to improve reliability and coverage. For example, combining four PBCHs can increase channel strength by approximately six dB. PBCHs can be scheduled to search spatial locations and control resource sets (CORESET) carrying the Physical Downlink Control Channel (PDCCH). The search space can be search space 0, and the CORESET can be CORESET0. The PDCCH can include downlink control information (DCI), such as DCI 1_0. The DCI can include system information - radio network temporary identifier (SI-RNTI). Furthermore, the DCI can schedule system information blocks (SIBs) for the Physical Downlink Shared Channel (PDSCH), such as SIB1. Aspects of this disclosure are intended to improve PDCCH coverage and recovery (e.g., type 0 PDCCH). In one configuration, the second multiplexing mode is used to send the PDCCH on FR2.

[0058] According to various aspects of this disclosure, for each beam within a cell, the PBCH can be configured to transmit information identifying multiple timings of the CORESET. In the examples described below, unless otherwise specified, CORESET refers to CORESET zero (CORESET0). The multiple timings of the CORESET can also correspond to the search space and PDCCH. In one configuration, the UE can combine multiple CORESETs to improve reception. CORESET refers to the time and frequency resources on which the PDCCH can be transmitted. Therefore, combining multiple CORESETs may result in the UE combining multiple PDCCHs, such as type 0 PDCCHs.

[0059] Each CORESET can have the same beam used for the SSB, or it can have a different beam used for the SSB. Figure 4A This is a diagram illustrating examples of beams used for CORESET, based on various aspects of this disclosure. Figure 4A In the example, the UE can receive SSBs 402 and 404 on each beam 406 and 408 of the cell. As mentioned above, each SSB on beams 406 and 408 can identify multiple CORESETs 410 and 412. Figure 4AAs shown, a first SSB (SSB1) 402 can be received on a first beam 406, and a second SSB (SSB2) 404 can be received on a second beam 408. In this example, CORESETs 410 and 412 can be received on the same beam 406 as the first SSB 402. Furthermore, CORESETs 410 and 412 can be quasi-co-located (QCL) with the first SSB 402. For example, CORESETs 410 and 412 can be spatial parameter-based QCLs; in other words, they are QCL type D. CORESETs 410 and 412 can also pass through the same beam as the second SSB 404 and can also be QCLs with the second SSB 404. Aspects of this disclosure are not limited to receiving two SSBs and two CORESETs, as... Figure 4A As shown, this disclosure considers two or more SSBs and / or two or more CORESETs.

[0060] Figure 4B This is a diagram illustrating examples of beams used for CORESET, based on various aspects of this disclosure. Figure 4B In the example, the UE can receive SSBs 402 and 404 on each beam 406 and 408 of the cell. As mentioned above, SSBs 402 and 404 in each beam 406 and 408 of the cell can identify multiple CORESETs 410 and 412. Figure 4B As shown, a first SSB (SSB1) 402 can be received on a first beam 406, and a second SSB (SSB2) 404 can be received on a second beam 408. In this example, CORESETs 410 and 412 can be received on a third beam 414, which is different from the first SSB 402. In this example, the third beam 414 can be narrower (e.g., thinner) than the first beam 406. In one configuration, the third beam 414 used to transmit the CORESET is a sub-beam of the first beam 406 used to transmit the corresponding SSB (e.g., the first SSB 402). Furthermore, CORESETs 410 and 412 can be QCLs with the first SSB 402. For example, CORESETs 410 and 412 can be QCLs based on QCL type D. CORESETs 410 and 412 can also use beams (e.g., sub-beams) different from the second beam 408.

[0061] As described above, one or more CORESETs (e.g., type 0PDCCH) may include downlink control information (DCI), such as DCI 1_0. Furthermore, the DCI may include system information - radio network temporary identifier (SI-RNTI). Figure 5A and Figure 5BThis diagram illustrates an example of DCI transmitted in a CORESET, based on various aspects of this disclosure. As described above, for each beam within the cell, the PBCH can be configured to transmit information identifying multiple timings of CORESET 500A, 500B. Furthermore, the beam 502 of each CORESET 500A, 500B can be the same beam 504 as SSB 506, or it can be a different beam than the beam 504 of SSB 506. Figure 5A and Figure 5B An example is shown where each CORESET 500A, 500B is transmitted on beam 502, which is different from beam 504 of SSB 506, as shown in the reference. Figure 4B As described. Additionally, in Figure 5A and Figure 5B In the example, the second SSB 512 (SSB2) can be transmitted via the corresponding beam 514. The corresponding beam 514 of the second SSB 512 (SSB2) may be different from the beam 504 of the first SSB 506 (SSB1).

[0062] In one configuration, such as Figure 5A As shown, the PDCCH transmitted in each of the multiple CORESET 500A, 500B includes DCI 510. In this example, the UE can combine the DCI 510 from each CORESET 500A, 500B to improve coverage. In another configuration, as... Figure 5B As shown, DCI 510 is transmitted on subsets of CORESET 500A and 500B from multiple CORESET 500A and 500B. Figure 5B In this example, DCI 510 is transmitted only on the first CORESET 500A. In this example, the second CORESET 500B can transmit DCI including data for another UE. Figure 5B The PDCCH (not shown in the image) is in... Figure 5B In the example, coverage can be enhanced by transmitting each CORESET 500A, 500B on the narrow beam 502. The narrow beam 502 can increase signal strength. In one configuration, the UE can try multiple hypotheses to identify the DCI 510 intended for use by that UE.

[0063] As previously described, an SSB can be mapped to one or more CORESETs. For example, such as Figure 4A , 4B 5A and Figure 5BAs shown, each SSB can be mapped to two CORESETs. According to various aspects of this disclosure, the UE determines whether an SSB beam is mapped to one or more CORESETs based on explicit or implicit indications. In one configuration, one or more new bits and / or one or more reserved bits of the PBCH's MIB can explicitly indicate whether an SSB beam is mapped to one or more CORESETs.

[0064] In another configuration, one or more specific carrier frequencies (e.g., SSB gratings) can be an implicit indication of the number of CORESETs mapped to the SSB. For example, the UE can acquire a specified carrier frequency and determine a one-to-many SSB-to-CORESET mapping based on acquiring the specified carrier frequency. In another configuration, different PSS and SSS sequences can indicate whether an SSB beam is mapped to one or more CORESETs. For example, a first PSS and SSS sequence can indicate multiple CORESETs mapped to the SSB. In this example, a second PSS and SSS sequence can indicate only one CORESET mapped to the SSB. In another configuration, reserved bits in the controlResourceSetZero field of the MIB can use three out of four bits to indicate whether an SSB beam is mapped to one or more CORESETs: for example, multiple {SS / PBCH block, PDCCH}SCS combinations, such as {120, 120} kHz, {240, 60} kHz, and {240, 120} kHz. In these examples, at least for 3GPP version 16, the most significant bit (MSB) used for controlResourceSetZero is set to zero. Therefore, in one configuration, the bit of the MSB used for controlResourceSetZero can indicate whether one-to-many mapping is supported. In another configuration, the use of the MSB is limited to UEs operating on version 16 and later.

[0065] In another aspect of this disclosure, the configuration of multiple cores can be specified relative to a single core. That is, each of the multiple cores can be transmitted relative to a single core at a predetermined schedule. For example, each core can be transmitted consecutively after an initial core. As another example, symbols can be transmitted separately for each core after the initial core.

[0066] In another aspect of this disclosure, the configuration of the plurality of CORESETs can be based on a new table. Figure 6This is a block diagram illustrating an example of configuring a new table 600 for multiple CORESETs, based on various aspects of this disclosure. Figure 6 As shown, the PBCH MIB includes four bits for the controlResourceSetZero element and four bits for the searchSpaceZero element. The four bits for the controlResourceSetZero element can indicate the CORESET multiplexing mode, the number of RBs specified for the CORESET, the number of symbols specified for the CORESET, and the resource block (RB) offset specified for the CORESET. Furthermore, as... Figure 6 As shown, if a single CORESET is mapped to an SSB, the four bits used for the searchSpaceZero element correspond to the first table (as shown in the Rel-16 configuration). Alternatively, if two or more CORESETs are mapped to an SSB, the four bits used for the searchSpaceZero element correspond to the second table (shown as a one-to-many configuration). The second table may indicate the time used for monitoring PDCCH and PDCCH repetition configuration. As previously described, the UE can determine whether two or more CORESETs are mapped to an SSB based on explicit or implicit indications. The UE can also determine the appropriate table in the MIB (e.g., the first table or the second table) based on explicit or implicit indications.

[0067] In another aspect of this disclosure, the plurality of CORESET timings may be consecutive or interleaved with the Physical Downlink Shared Channel (PDSCH). Figure 7A This diagram illustrates an example of consecutive CORESET 700A, 700B based on various aspects of this disclosure. In the current example, each CORESET 700A, 700B is transmitted on beam 702, which is different from beam 704 of SSB 706, as referenced. Figure 4B As described. Figure 7A As shown, CORESET 700A and 700B can be sent sequentially. That is, the first CORESET 700A can be followed by the second CORESET 700B. Further CORESETs can be sent consecutively after the second CORESET 700B. Figure 7A (Not shown in the image).

[0068] Figure 7B This diagram illustrates examples of consecutive CORESET 750A and 750B based on various aspects of this disclosure. In the current example, CORESET 750A and 750B are transmitted on beam 702, which is different from beam 704 of SSB 706, as shown in the reference. Figure 4B As described. Figure 7B As shown, CORESET 750A and 750B can be interleaved with corresponding PDSCH 752A and 752B. For example, a first CORESET 750A may include a first DCI 754A (e.g., DCI 1_0) that schedules a first SIB (e.g., SIB1) on a first PDSCH 752A, and a second CORESET 750B may include a second DCI 754B (e.g., DCI 1_0) that schedules a second SIB (e.g., SIB1) on a second PDSCH 752B. A first PDSCH 752A may correspond to a first CORESET 750A, and a second PDSCH 752B may correspond to a second PDSCH 752B. As described above, each PDSCH 752A and 752B can transmit an SIB such as SIB1.

[0069] exist Figure 7A and 7B In the example, the second SSB 708 (SSB2) can be transmitted via the corresponding beam 710. The corresponding beam 710 of the second SSB 708 (SSB2) may be different from the beam 704 of the first SSB 706 (SSB1).

[0070] In another aspect of this disclosure, the number of PDSCH transmissions may be equal to or less than the number of CORESETs. Figure 8A This diagram illustrates an example of transmitting a PDSCH 800 based on various aspects of this disclosure. (See diagram for example.) Figure 8A As shown, the PDSCH800 can be interleaved with the corresponding CORESET 802, as referenced. Figure 7B As described. In Figure 8A In the example, the beam 804 of each PDSCH 800 can be different from the beam 806 of the corresponding SSB 808. In one configuration, the beam 804 of each PDSCH 800 can be narrower than the beam 806 of each SSB 808. That is, the beam 804 of each PDSCH 800 can be a sub-beam of the beam 806 of the corresponding SSB 808. In this configuration, if the beam 810 of each CORESET 802 is a narrow beam, then the beam 804 of each PDSCH 800 can be the same as the beam 810 of each CORESET 802. Figure 8A In the example, each PDSCH 800 can be quasi-co-located (QCL) with the corresponding CORESET 802.

[0071] Figure 8B This diagram illustrates an example of transmitting a PDSCH 800 based on various aspects of this disclosure. (See diagram for example.) Figure 8BAs shown, the PDSCH 800 can be interleaved with the corresponding CORESET 802, as referenced. Figure 7B As described. In Figure 8B In this example, the beam 820 of each PDSCH 800 can be the same as the beam 806 of each SSB 808. That is, the beam 820 of each PDSCH 800 can be a wide beam. In this configuration, if the beam 810 of each CORESET 802 is a narrow beam, then the beam 820 of each PDSCH 800 can be different from the beam 810 of each CORESET 802. Figure 8B In the example, each PDSCH 800 can be QCL with the corresponding CORESET 802.

[0072] Figure 8C This diagram illustrates an example of transmitting a PDSCH 850, based on various aspects of this disclosure. Figure 8C In this example, the number of PDSCH 850s is less than the number of CORESET 802s. That is, in one configuration, two or more CORESET 802s can correspond to a single PDSCH 850. A single PDSCH 850 can be transmitted on a wide beam 852, and this single PDSCH 850 can be QCL with its corresponding SSB 808. In this configuration, if the beam 810 of each CORESET 802 is a narrow beam, then the wide beam 852 of the PDSCH 850 can be different from the beam 810 of each CORESET 802.

[0073] exist Figure 8A , 8B In the example of 8C, the second SSB 812 (SSB2) can be transmitted via a corresponding beam 814. The corresponding beam 814 of the second SSB 812 (SSB2) can be different from the beam 806 of the first SSB 808 (SSB1).

[0074] As indicated above, Figure 3-8C Examples are provided. Other examples can be found in the reference. Figure 3-8C The examples described are different.

[0075] Figure 9 This is a diagram illustrating, for example, an example procedure 900 performed by a UE, based on various aspects of this disclosure. Example procedure 900 is an example of receiving one or more control resource sets (CORESETs) based on a received physical broadcast channel (PBCH).

[0076] like Figure 9As shown, at block 902, the UE receives the Physical Broadcast Channel (PBCH). For example, the UE may receive the PBCH (e.g., using antenna 252, MOD / DEMOD 254, receive processor 258, controller / processor 280, memory 282, etc.). At block 904, the UE receives multiple cores based on the received PBCH. For example, the UE may receive multiple cores (e.g., using antenna 252, MOD / DEMOD 254, receive processor 258, controller / processor 280, memory 282, etc.). At block 906, the UE receives one or more Physical Downlink Control Channels (PDSCH) based on the received multiple cores. For example, the UE may receive one or more PDSCHs (e.g., using antenna 252, MOD / DEMOD 254, receive processor 258, controller / processor 280, memory 282, etc.).

[0077] Implementation examples are described in the following numbered clauses:

[0078] 1. A method for wireless communication performed by a user equipment (UE), comprising:

[0079] Receive Physical Broadcast Channel (PBCH);

[0080] Multiple control resource sets (CORESETs) are received based on the received PBCH; and

[0081] Based on receiving the plurality of CORESETs, at least one Physical Downlink Control Channel (PDSCH) is received.

[0082] 2. The method according to Clause 1 further includes: determining the location of the search space for each of the plurality of CORESETs based on the received PBCH.

[0083] 3. The method according to any one of clauses 1-2, wherein the PBCH procedure is used for the search space location of each of the plurality of CORESETs.

[0084] 4. The method according to any one of clauses 1-3, wherein:

[0085] Receiving the PBCH includes: receiving a synchronization signal block (SSB);

[0086] Receiving the plurality of CORESETs includes: receiving each CORESET via a wide beam or a narrow beam; and

[0087] Each CORESET is quasi-co-located with the SSB.

[0088] 5. The method according to any one of clauses 1-4 further comprises: determining, based on at least one bit of the Master Information Block (MIB) of the PBCH, the carrier frequency, or the synchronization signal sequence, that the SSB is mapped to the plurality of CORESETs.

[0089] 6. The method according to any one of the clauses 1-5 further comprises: decoding downlink control information (DCI) received via one of the plurality of CORESETs, the DCI being repeated in each of the plurality of CORESETs or in a subset of the plurality of CORESETs.

[0090] 7. The method according to Clause 6 further includes: scheduling the at least one PDSCH based on the DCI.

[0091] 8. The method according to any one of clauses 1-7, wherein the plurality of CORESETs are configured relative to an initial CORESET or a configuration table based on the Master Information Block (MIB) of the PBCH.

[0092] 9. The method according to any one of clauses 1-8, wherein the plurality of CORESETs are sequential.

[0093] 10. The method according to any one of clauses 1-8, wherein the plurality of CORESETs are interleaved with the at least one PDSCH.

[0094] 11. The method according to any one of clauses 1-10, wherein the at least one PDSCH includes a system information block.

[0095] 12. The method according to any one of clauses 1-11, wherein each of the at least one PDSCH corresponds to one of the plurality of CORESETs, each PDSCH is quasi-co-located with a corresponding CORESET of the plurality of CORESETs, and receiving the at least one PDSCH comprises: receiving each PDSCH via a wide beam or a narrow beam.

[0096] 13. The method according to any one of clauses 1-11, wherein each of the at least one PDSCH corresponds to at least two of the plurality of CORESETs, each PDSCH is quasi-co-located with a synchronization signal block (SSB) corresponding to at least two CORESETs; and receiving the at least one PDSCH comprises: receiving each PDSCH via a wide beam.

[0097] The above disclosure provides illustrative and descriptive information, but is not exhaustive, nor does it limit these aspects to the precise form disclosed. Modifications and variations can be made based on the above disclosure, or modifications and variations can be derived from practice in these areas.

[0098] As used herein, the term "component" is intended to be interpreted broadly as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented using a combination of hardware, firmware, and / or hardware and software.

[0099] The threshold is used to describe several aspects. As used in this article, depending on the context, satisfying the threshold can mean a value that is greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0100] It is evident that the described systems and / or methods can be implemented using various forms of hardware, firmware, and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Therefore, since the operation and performance of these systems and / or methods are described without reference to specific software code, it should be understood that software and hardware for implementing these systems and / or methods can be designed, at least in part, based on the description herein.

[0101] Although combinations of features are set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the aspects. In fact, many of these features can be combined in ways not specifically set forth in the claims and / or not disclosed in the specification. Although each dependent claim listed below directly depends on only one claim, the disclosure of the aspects includes each dependent claim in combination with every other claim in the group of claims. The phrase “at least one of” refers to any combination of these items (including a single member). For 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 having multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).

[0102] No element, action, or instruction used should be construed as essential or fundamental unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.) and may be used interchangeably with “one or more.” If only one item is desired, the phrase “only one” or similar terminology will be used. Furthermore, as used herein, the terms “containing,” “having,” “including,” etc., are intended to be open-ended terms. Additionally, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated.

Claims

1. A method for wireless communication performed by a user equipment (UE), comprising: Physical Broadcast Channel (PBCH) received via wide beam; Multiple control resource sets (CORESETs) are received based on the PBCH, each of the multiple CORESETs being associated with a different timing of a single type of CORESET, and each of the multiple CORESETs being received via a narrow beam; as well as Based on receiving the plurality of CORESETs, at least one Physical Downlink Shared Channel (PDSCH) is received, each of the at least one PDSCH corresponding to at least two of the plurality of CORESETs, and each PDSCH is quasi-co-located with a Synchronization Signal Block (SSB) corresponding to the at least two CORESETs.

2. The method according to claim 1, further comprising: Based on receiving the PBCH, the corresponding search space location for each of the plurality of CORESETs is identified.

3. The method according to claim 1, wherein, The PBCH identifier is used for the search space location of each of the plurality of CORESETs.

4. The method according to claim 1, wherein: Receiving the PBCH includes: receiving a synchronization signal block (SSB); and Each CORESET is quasi-co-located with the SSB.

5. The method according to claim 4, further comprising: Based on at least one bit of the Master Information Block (MIB) of the PBCH, the carrier frequency, or the synchronization signal sequence, it is determined that the SSB is mapped to the plurality of CORESETs.

6. The method according to claim 1, further comprising: Downlink control information (DCI) received via one of the plurality of CORESETs is decoded, the DCI being repeated in each of the plurality of CORESETs or a subset of the plurality of CORESETs.

7. The method according to claim 6, further comprising: The at least one PDSCH is scheduled based on the decoding of the DCI.

8. The method according to claim 1, wherein, The plurality of CORESETs are configured relative to the initial CORESET or a configuration table based on the Master Information Block (MIB) of the PBCH.

9. The method according to claim 1, wherein, The multiple CORESETs are consecutive.

10. The method according to claim 1, wherein, The plurality of CORESETs are interleaved with the at least one PDSCH.

11. The method according to claim 1, wherein, The at least one PDSCH includes a system information block.

12. The method according to claim 1, wherein, Receiving the at least one PDSCH includes receiving each PDSCH via the wide beam or the narrow beam.

13. An apparatus for wireless communication at a user equipment (UE), comprising: One or more processors; Memory coupled to the one or more processors; as well as Instructions, stored in the memory, and operable to cause the device to perform the following operations when executed by the one or more processors: Physical Broadcast Channel (PBCH) received via wide beam; Multiple control resource sets (CORESETs) are received based on the PBCH, each of the multiple CORESETs being associated with a different timing of a single type of CORESET, and each of the multiple CORESETs being received via a narrow beam; as well as Based on receiving the plurality of CORESETs, at least one Physical Downlink Shared Channel (PDSCH) is received, each of the at least one PDSCH corresponding to at least two of the plurality of CORESETs, and each PDSCH is quasi-co-located with a Synchronization Signal Block (SSB) corresponding to the at least two CORESETs.

14. The apparatus according to claim 13, wherein, Executing the instructions also causes the device to identify a corresponding search space location for each of the plurality of CORESETs based on receiving the PBCH.

15. The apparatus according to claim 13, wherein, The PBCH identifier is used for the search space location of each of the plurality of CORESETs.

16. The apparatus according to claim 13, wherein, Executing the instruction also causes the device to receive a synchronization signal block (SSB) based on receiving the PBCH; and Each CORESET is quasi-co-addressable with the SSB.

17. The apparatus according to claim 16, wherein, Executing the instructions further causes the device to determine, based on at least one bit of the Master Information Block (MIB) of the PBCH, the carrier frequency, or the synchronization signal sequence, that the SSB is mapped to the plurality of CORESETs.

18. The apparatus according to claim 13, wherein, Executing the instructions also causes the device to decode downlink control information (DCI) received via one of the plurality of CORESETs, the DCI being repeated in each of the plurality of CORESETs or a subset of the plurality of CORESETs.

19. The apparatus according to claim 18, wherein, Executing the instructions also causes the device to schedule the at least one PDSCH based on decoding the DCI.

20. The apparatus according to claim 13, wherein, The plurality of CORESETs are configured relative to the initial CORESET or a configuration table based on the Master Information Block (MIB) of the PBCH.

21. The apparatus according to claim 13, wherein, The multiple CORESETs are consecutive.

22. The apparatus according to claim 13, wherein, The plurality of CORESETs are interleaved with the at least one PDSCH.

23. The apparatus according to claim 13, wherein, The at least one PDSCH includes a system information block.

24. The apparatus according to claim 13, wherein, Executing the instruction also causes the device to receive each PDSCH via the wide beam or the narrow beam.

25. An apparatus for wireless communication at a user equipment (UE), comprising: Units used for receiving the Physical Broadcast Channel (PBCH) via a wide beam; A unit for receiving multiple control resource sets (CORESETs) based on receiving the PBCH, each of the multiple CORESETs being associated with a different timing of a single type of CORESET, each of the multiple CORESETs being received via a narrow beam; as well as A unit for receiving at least one Physical Downlink Shared Channel (PDSCH) based on receiving the plurality of CORESETs, each of the at least one PDSCH corresponding to at least two of the plurality of CORESETs, and each PDSCH being quasi-co-located with a Synchronization Signal Block (SSB) corresponding to the at least two CORESETs.

26. The apparatus according to claim 25, wherein, The corresponding search space location for each of the plurality of CORESETs is identified based on the received PBCH.

27. The apparatus according to claim 25, wherein, The PBCH identifier is used for the search space location of each of the plurality of CORESETs.

28. The apparatus according to claim 25, wherein: The unit for receiving the PBCH includes: a unit for receiving the synchronization signal block (SSB); and Each CORESET is quasi-co-addressable with the SSB.

29. The apparatus according to claim 28, wherein, The mapping from the SSB to the plurality of CORESETs is determined based on at least one bit of the Master Information Block (MIB) of the PBCH, the carrier frequency, or the synchronization signal sequence.

30. The apparatus according to claim 25, wherein, Downlink control information (DCI) received via one of the plurality of CORESETs is decoded based on the receipt of the plurality of CORESETs via the unit for receiving the plurality of CORESETs, and the DCI is repeated in each of the plurality of CORESETs or in a subset of the plurality of CORESETs.

31. The apparatus according to claim 30, wherein, The at least one PDSCH is scheduled based on decoding the DCI.

32. The apparatus according to claim 25, wherein, The plurality of CORESETs are configured relative to the initial CORESET or a configuration table based on the Master Information Block (MIB) of the PBCH.

33. The apparatus according to claim 25, wherein, The multiple CORESETs are consecutive.

34. The apparatus according to claim 25, wherein, The plurality of CORESETs are interleaved with the at least one PDSCH.

35. The apparatus according to claim 25, wherein, The at least one PDSCH includes a system information block.

36. The apparatus according to claim 25, wherein, The unit for receiving the at least one PDSCH includes: a unit for receiving each PDSCH via the wide beam or the narrow beam.

37. A non-transitory computer-readable medium having program code for wireless communication recorded thereon, the program code being executed by one or more processors, and comprising: Program code for receiving the Physical Broadcast Channel (PBCH) via a wide beam; Program code for receiving multiple control resource sets (CORESETs) based on receiving the PBCH, each of the multiple CORESETs being associated with a different timing of a single type of CORESET, each of the multiple CORESETs being received via a narrow beam; as well as Program code for receiving at least one Physical Downlink Shared Channel (PDSCH) based on receiving the plurality of CORESETs, each of the at least one PDSCH corresponding to at least two of the plurality of CORESETs, and each PDSCH being quasi-co-located with a Synchronization Signal Block (SSB) corresponding to the at least two CORESETs.

38. The non-transitory computer-readable medium of claim 37, further comprising: Program code for identifying the corresponding search space location for each of the plurality of CORESETs based on the received PBCH.

39. The non-transitory computer-readable medium according to claim 37, wherein, The PBCH identifier is used for the search space location of each of the plurality of CORESETs.

40. The non-transitory computer-readable medium of claim 37, further comprising: Program code for determining that the SSB is mapped to the plurality of CORESETs based on at least one bit of the Master Information Block (MIB) of the PBCH, the carrier frequency, or the synchronization signal sequence.

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