Synchronization signal block configuration for narrower bandwidths than minimum bandwidth

Abstract

Various aspects of the disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) can receive, from a base station, a synchronization signal block (SSB) associated with an SSB configuration for an operating frequency band, the operating frequency band having a maximum bandwidth that is narrower than a minimum SSB bandwidth for an access link. The UE can decode the SSB based at least in part on the SSB configuration. Numerous other aspects are described.

Description

[0001] Cross-references to related applications

[0002] This patent application claims priority to European Patent Application No. 21382072.3, filed on January 29, 2021, entitled “SYNCHRONIZATION SIGNALBLOCK CONFIGURATION FOR BANDWIDTH NARROWER THAN A MINIMUM BANDWIDTH,” which has been assigned to the assignee of this application. The disclosure of the earlier application is considered part of this patent application and is incorporated herein by reference. Technical Field

[0003] In summary, various aspects of this disclosure relate to wireless communication, and particularly to techniques and apparatus associated with a synchronization signal block (SSB) configuration for a bandwidth narrower than the minimum bandwidth. Background Technology

[0004] Wireless communication systems are 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 enable 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 / Improved LTE is an enhanced set of the Universal Mobile Telecommunications System (UMTS) mobile standard released by the 3rd Generation Partnership Project (3GPP).

[0005] A wireless network may include multiple base stations (BSs) capable of supporting communication for multiple user equipments (UEs). UEs can communicate with the BS 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 herein, a BS may be referred to as a Node B, gNB, Access Point (AP), Radio Headend, Transmit / Receive 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 at the city, country, region, and even global levels. NR (which can also be referred to as 5G) is an enhancement set of the LTE mobile standard released by 3GPP. NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving service, utilizing new spectrum, and using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Spread Spectrum OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies and carrier aggregation, thereby better supporting mobile broadband internet access. As the demand for mobile broadband access continues to grow, further improvements to LTE, NR, and other radio access technologies remain useful. Summary of the Invention

[0007] In some aspects, a method of wireless communication performed by a user equipment (UE) includes: receiving from a base station an SSB associated with a synchronization signal block (SSB) configuration for an operating frequency band having a maximum bandwidth narrower than a minimum SSB bandwidth for an access link; and decoding the SSB based at least in part on the SSB configuration.

[0008] In some aspects, a method of wireless communication performed by a base station includes: determining an SSB configuration for an operating frequency band associated with the base station, wherein the operating frequency band has a maximum bandwidth that is narrower than a minimum SSB bandwidth for an access link; and transmitting an SSB at least in part based on the SSB configuration.

[0009] In some aspects, a UE for wireless communication includes: a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: receive from a base station an SSB associated with an SSB configuration for an operating frequency band having a maximum bandwidth narrower than a minimum SSB bandwidth for an access link; and decode the SSB at least in part based on the SSB configuration.

[0010] In some aspects, a base station for wireless communication includes: a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: determine an SSB configuration for an operating frequency band associated with the base station, wherein the operating frequency band has a maximum bandwidth narrower than a minimum SSB bandwidth for an access link; and transmit an SSB at least in part based on the SSB configuration.

[0011] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: receive from a base station an SSB associated with an SSB configuration for an operating frequency band having a maximum bandwidth narrower than a minimum SSB bandwidth for an access link; and decode the SSB at least in part based on the SSB configuration.

[0012] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a base station, cause the base station to: determine an SSB configuration for an operating frequency band associated with the base station, wherein the operating frequency band has a maximum bandwidth narrower than a minimum SSB bandwidth for an access link; and transmit an SSB at least in part based on the SSB configuration.

[0013] In some aspects, an apparatus for wireless communication includes: a unit for receiving from a base station an SSB associated with an SSB configuration for an operating frequency band having a maximum bandwidth narrower than a minimum SSB bandwidth for an access link; and a unit for decoding the SSB at least in part based on the SSB configuration.

[0014] In some aspects, an apparatus for wireless communication includes: a unit for determining an SSB configuration for an operating frequency band associated with the apparatus, wherein the operating frequency band has a maximum bandwidth narrower than a minimum SSB bandwidth for an access link; and a unit for transmitting an SSB at least in part based on the SSB configuration.

[0015] In general, the aspects include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication equipment and / or processing systems as fully described herein with reference to the accompanying drawings and description and as shown by the accompanying drawings and description.

[0016] The foregoing has provided a fairly broad overview of the features and technical advantages of examples according to this disclosure in order to better understand the following detailed description. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for achieving the same purpose as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (both their organization and manner of operation) and their associated advantages will be better understood when considered in conjunction with the accompanying drawings, based on the following description. Each drawing in the accompanying drawings is provided for illustrative and descriptive purposes and is not intended to define a limitation of the claims. Attached Figure Description

[0017] To gain a full understanding of the foregoing features of this disclosure, a more specific description of the invention, briefly summarized above, can be obtained by referring to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and are therefore not intended to limit its scope, as other equally valid aspects can be recognized by this description. Identical reference numerals in different drawings may identify the same or similar elements.

[0018] Figure 1 This is a schematic diagram illustrating an example of a wireless network according to this disclosure.

[0019] Figure 2 This is a schematic diagram illustrating an example of communication between a base station and a UE in a wireless network according to the present disclosure.

[0020] Figure 3 This is a schematic diagram illustrating an example of a time slot format according to this disclosure.

[0021] Figure 4 This is a schematic diagram illustrating an example of a synchronization signal hierarchy according to this disclosure.

[0022] Figure 5 This is a schematic diagram illustrating an example of a Synchronization Signal Block (SSB) configuration according to this disclosure.

[0023] Figures 6A-6E This is a schematic diagram illustrating an example of an SSB configuration associated with a bandwidth narrower than the minimum bandwidth, according to this disclosure.

[0024] Figure 7-8 This is a schematic diagram illustrating an example process associated with an SSB configuration for a bandwidth narrower than the minimum bandwidth, according to this disclosure.

[0025] Figure 9-10 This is a block diagram of an example device for wireless communication based on the present disclosure. Detailed Implementation

[0026] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will understand that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, an apparatus or a method may be implemented using any number of the aspects set forth herein. Furthermore, the scope of this disclosure is intended to cover such apparatuses or methods implemented using structures, functions, or structures and functions other than or different from the aspects of this disclosure set forth herein. It should be understood that any aspect of this disclosure disclosed herein may be embodied by one or more elements of the claims.

[0027] Several aspects of a telecommunications system will now be described with reference to various devices and techniques. These devices and techniques will be described in detail below and illustrated in the accompanying drawings, through various frames, 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 an element is implemented as hardware or software depends on the specific application and the design constraints imposed on the entire system.

[0028] It should be noted that while this document may use terms commonly associated with 5G or NR radio access technology (RAT) to describe aspects, aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or RATs after 5G (e.g., 6G).

[0029] Figure 1This is a schematic diagram illustrating an example of a wireless network 100 according to this disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, as well as other examples. The wireless network 100 may include multiple base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, Transmit / Receive Point (TRP), etc. Each BS can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to the coverage area of ​​a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.

[0030] 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) and can allow unrestricted access by UEs with service subscriptions. A picocell can cover a relatively small geographic area and can allow unrestricted access by UEs with service subscriptions. A femtocell can cover a relatively small geographic area (e.g., a residential area) and can allow restricted access by UEs associated with that femtocell (e.g., UEs in a Closed User Group (CSG)). A BS used for macrocells can be referred to as a macro BS. A BS used for picocells can be referred to as a pico BS. A BS used for femtocells can be referred to as a femtocell BS or a home BS. Figure 1 In the examples 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 herein.

[0031] In some respects, the cell may not be stationary, and the geographical area of ​​the cell may move depending on the location of the mobile BS. In some respects, any suitable transport network can be used to interconnect BSs with each other and / or with 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 or virtual networks).

[0032] 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 the 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 for other UEs. Figure 1 In the example shown, relay BS 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS can also be referred to as a relay station, relay base station, repeater, etc.

[0033] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) such as 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 high 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).

[0034] Network controller 130 can be coupled to a group of base stations (BSs) and can provide coordination and control for these BSs. Network controller 130 can communicate with the BSs via backhaul. BSs can also communicate with each other directly or indirectly via wireless or wired backhaul.

[0035] UE 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be stationary or mobile. UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE may be a cellular phone (e.g., a smartphone), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet device, camera, gaming device, netbook, smartbook, ultrabook, medical device or apparatus, biometric sensor / device, wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.)), entertainment device (e.g., music or video device, or satellite radio unit, etc.), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0036] Some UEs can be considered Machine-Type Communication (MTC) or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which can communicate with a base station, another device (e.g., a remote device), or some other entity. Wireless nodes can provide connectivity to or to a network (e.g., a wide area network such as the Internet or cellular networks) via wired or wireless communication links, for example. Some UEs can be considered Internet of Things (IoT) devices, and / or can be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs can be considered Customer Premises Equipment (CPE). UE 120 can be included within a housing housing the components of UE 120, such as processor components and / or memory components. In some aspects, the processor components and memory components can be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) can be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0037] Typically, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific RAT and can operate on one or more frequencies. A RAT can also be referred to as a radio technology, air interface, etc. A frequency can also be referred to as a carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0038] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary for communication with each other). 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 or vehicle-to-infrastructure (V2I) protocols) and / or mesh networks. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described herein as being performed by base station 110.

[0039] Devices in the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in the wireless network 100 can communicate using an operating band with a first frequency range (FR1) (spanning from 410 MHz to 7.125 GHz), and / or can communicate using an operating band with a second frequency range (FR2) (spanning from 24.25 GHz to 52.6 GHz). Frequencies between FR1 and FR2 are sometimes referred to as intermediate frequency (IF) bands. Although a portion of FR1 is greater than 6 GHz, FR1 is generally referred to as the "below 6 GHz" band. Similarly, FR2 is generally referred to as the "millimeter wave" band, although it differs from the extremely high frequency (EHF) band (30 GHz–300 GHz) designated as "millimeter wave" by the International Telecommunication Union (ITU). Therefore, unless otherwise explicitly stated, it should be understood that the terms "below 6 GHz" and the like (if used herein) can broadly refer to frequencies below 6 GHz, frequencies within FR1, and / or intermediate frequency band frequencies (e.g., above 7.125 GHz). Similarly, unless otherwise explicitly stated, it should be understood that the terms "millimeter wave" and the like (if used herein) can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or intermediate frequency band frequencies (e.g., below 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0040] As pointed out above, Figure 1 This is provided as an example. Other examples may differ from the one provided. Figure 1 The example described.

[0041] Figure 2 This is a schematic diagram illustrating an example 200 of communication between a base station 110 and a UE 120 in a wireless network 100 according to the present disclosure. The base station 110 may be equipped with T antennas 234a to 234t, and the UE 120 may be equipped with R antennas 252a to 252r, wherein generally, T ≥ 1 and R ≥ 1.

[0042] At base station 110, transmitting processor 220 can 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 channel quality indicators (CQI) received from each UE, process (e.g., code and modulate) the data for each UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmitting processor 220 can also process system information (e.g., semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, permission, and / or upper-layer signaling), and provide overhead symbols and control symbols. Transmitting processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding, if applicable) on data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can (e.g., for OFDM) process its corresponding output symbol stream to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, 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 via T antennas 234a to 234t respectively.

[0043] 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 respectively. Each demodulator 254 can adjust (e.g., filter, amplify, down-convert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can further process the input sample (e.g., for OFDM) to obtain a received symbol. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. Receive 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 term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine the Reference Signal Received Power (RSRP) parameter, Received Signal Strength Indicator (RSSI) parameter, Reference Signal Received Quality (RSRQ) parameter, and / or Channel Quality Indicator (CQI) parameter, as well as other examples. In some aspects, one or more components of the UE 120 may be included in the housing.

[0044] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0045] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within the following: one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, and other examples. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or multiple antenna elements within housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements coupled to one or more transmitting and / or receiving components (such as...) Figure 2 One or more antenna elements (one or more components).

[0046] On the uplink, at UE 120, the transmitting processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., for reporting RSRP, RSSI, RSRQ, and / or CQI). The transmitting processor 264 can also generate reference symbols for one or more reference signals. Symbols from the transmitting processor 264 can be pre-encoded (if applicable) by TXMIMO processor 266, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of UE 120 can be included in the modem of UE 120. In some aspects, UE 120 includes a transceiver. The transceiver may include any combination of antenna 252, modulator and / or demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264 and / or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein (e.g., as referenced). Figures 6A-6E (Described).

[0047] At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 can 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. Base station 110 may include scheduler 246 to schedule UE 120 for downlink and / or uplink communication. In some aspects, modulators and demodulators (e.g., MOD / DEMOD 232) of base station 110 may be included in the modem of base station 110. In some aspects, base station 110 includes a transceiver. The transceiver may include any combination of antenna 234, modulator and / or demodulator 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein (e.g., as referenced). Figures 6A-6E (Described).

[0048] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120 and / or Figure 2 Any other components may perform one or more techniques associated with a Synchronization Signal Block (SSB) configuration for a bandwidth narrower than the minimum bandwidth, as described in more detail elsewhere herein. 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 7 Process 700 Figure 8 The operation of process 800 and / or other processes as described herein. Memory 242 and 282 may store data and program code 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 (e.g., code and / or program code) for wireless communication. For example, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly, or after compilation, translation, and / or interpretation), may cause one or more processors, UE 120, and / or base station 110 to perform or direct, for example... Figure 7 Process 700 Figure 8 The operation of process 800 and / or other processes as described herein. In some aspects, execution instructions may include run instructions, translation instructions, compilation instructions and / or interpretation instructions, and other examples.

[0049] In some aspects, UE 120 includes: a unit for receiving from base station 110 an SSB associated with an SSB configuration for an operating frequency band having a maximum bandwidth narrower than the minimum SSB bandwidth for the access link; and / or a unit for decoding the SSB at least partially based on the SSB configuration. The unit for UE 120 to perform the operations described herein may include, for example, one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TXMIMO processor 266, modulator 254, controller / processor 280, or memory 282.

[0050] In some aspects, UE 120 includes: units for performing channel estimation by avoiding the use of the Physical Broadcast Channel (PBCH) demodulation reference signal (DMRS) in one or more punched edges of the SSB; and / or units for decoding only the set of resource blocks (RBs) in the frequency region within the maximum bandwidth of the operating band of the SSB.

[0051] In some aspects, UE 120 includes: a cell for determining one or more punched edges based at least in part on a configuration associated with the operating band or at least in part on blind detection of a pseudo-noise (PN) sequence associated with a PBCH in a frequency region within the maximum bandwidth of the operating band in the SSB.

[0052] In some aspects, UE 120 includes: a unit for combining a first portion of the PBCH carried in the upper frequency region during a first SSB timing with a second portion of the PBCH carried in the lower frequency region during a second SSB timing.

[0053] In some aspects, base station 110 includes: elements for determining an SSB configuration for an operating band associated with base station 110, wherein the operating band has a maximum bandwidth narrower than the minimum SSB bandwidth for an access link; and / or elements for transmitting SSBs at least in part based on the SSB configuration. Elements for base station 110 to perform the operations described herein may include, for example, one or more of a transmit processor 220, a TX MIMO processor 230, a modulator 232, an antenna 234, a demodulator 232, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.

[0054] Although Figure 2 The boxes in the diagram are shown as different components, but the functions described above with respect to these boxes can be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TXMIMO processor 266 can be performed by or under the control of controller / processor 280.

[0055] As pointed out above, Figure 2 This is provided as an example. Other examples may differ from the one provided. Figure 2 The example described.

[0056] Figure 3 This is a schematic diagram illustrating example 300 of a timeslot format according to this disclosure. Figure 3As shown, time-frequency resources in a radio access network can be divided into resource blocks (shown as a single resource block (RB) 305). RB 305 is sometimes referred to as a physical resource block (PRB). RB 305 includes a set of subcarriers (e.g., 12 subcarriers) and a set of symbols (e.g., 14 symbols) that can be scheduled by base station 110 as units. In some aspects, RB 305 may include a set of subcarriers in a single timeslot. As shown, a single time-frequency resource included in RB 305 may be referred to as a resource element (RE) 310. RE 310 may include a single subcarrier (e.g., in frequency) and a single symbol (e.g., in time). The symbol may be referred to as an orthogonal frequency division multiplexing (OFDM) symbol. RE 310 may be used to transmit a modulation symbol, which may be a real-valued or complex-valued symbol.

[0057] In some telecommunications systems (e.g., NR), the RB305 can span 12 subcarriers over a duration of 0.1 milliseconds (ms), with subcarrier spacings of, for example, 15 kHz, 30 kHz, 60 kHz, or 120 kHz, and other examples. A radio frame can include 40 time slots and can have a length of 10 ms. Therefore, each time slot can have a length of 0.25 ms. However, the time slot length can vary depending on the digital scheme used for communication (e.g., subcarrier spacing and / or cyclic prefix format). Time slots can be configured with a link direction for transmission (e.g., downlink or uplink). In some aspects, the link direction for time slots can be configured dynamically.

[0058] As pointed out above, Figure 3 This is provided as an example. Other examples may differ from the one provided. Figure 3 The example described.

[0059] Figure 4 This is a schematic diagram illustrating Example 400 of a synchronization signal (SS) hierarchy according to this disclosure. Figure 4As shown, the SS hierarchy may include an SS burst set 405, which may include multiple SS bursts 410 (shown as SS burst 0 to SS burst N-1), where N is the maximum number of repetitions of SS bursts 410 that the base station can transmit. As further shown, each SS burst 410 may include one or more SS blocks (SSBs) 415 (shown as SSB0 to SSBM-1), where M is the maximum number of SSBs 415 that the SS burst 410 can carry. In some aspects, different SSBs 415 may be beamformed in different ways (e.g., transmitted using different beams) and may be used for cell search, cell acquisition, beam management and / or beam selection (e.g., as part of the initial network access procedure). For example, in some aspects, the base station may transmit multiple SSBs on multiple corresponding beams, and the SSBs may be used for beam selection. The SS burst set 405 may be transmitted periodically (e.g., every X milliseconds) by a radio node (e.g., base station 110), such as... Figure 4 As shown. In some aspects, the SS burst set 405 can have a fixed or dynamic length (in... Figure 4 (This is represented as Y milliseconds). In some cases, SS burst set 405 or SS burst 410 may be referred to as the Discovery Reference Signal (DRS) transmission window or the SSB Measurement Time Configuration (SMTC) window.

[0060] In some aspects, SSB 415 may include resources carrying a primary synchronization signal (PSS) 420, a secondary synchronization signal (SSS) 425, and / or a physical broadcast channel (PBCH) 430. In some aspects, PSS 420, SSS 425, and PBCH 430 may carry information for initial network acquisition and synchronization. In some aspects, PBCH 430 may include a DMRS that carries information for estimating the radio channels used to demodulate PBCH 430. The design and mapping of the DMRS may be specific to the channel estimation used by the DMRS against PBCH 430. In some aspects, the DMRS may be beamformed, may be confined to resources (e.g., not transmitted over broadband), and may be transmitted only when necessary. In some aspects, multiple SSBs 415 are included in an SS burst 410 (e.g., utilizing transmissions on different beams), and each SSB 415 across the SS burst may be identical for PSS 420, SSS 425, and / or PBCH 430. In some aspects, a single SSB 415 may be included in an SS burst 410. In some aspects, an SSB 415 may be at least four symbols in length (e.g., OFDM symbols), wherein each symbol carries one or more of PSS 420 (e.g., occupying one symbol), SSS 425 (e.g., occupying one symbol), and / or PBCH 430 (e.g., occupying two symbols). In some aspects, an SSB 415 may be referred to as an SS / PBCH block.

[0061] In some respects, the notation for SSB415 is consecutive, such as... Figure 4 As shown. In some aspects, the symbols of SSB415 are discontinuous. Similarly, in some aspects, one or more SSB 415s of SS burst 410 may be transmitted in continuous radio resources (e.g., continuous symbols) during one or more time slots. Alternatively or additionally, one or more SSB415s of SS burst 410 may be transmitted in discontinuous radio resources.

[0062] In some aspects, SS burst 410 may have a burst period, and SSB 415 of SS burst 410 may be transmitted by a radio node (e.g., base station 110) according to the burst period. In this case, SSB 415 may be repeated during each SS burst 410. In some aspects, SS burst set 405 may have a burst set period, whereby SS burst 410 of SS burst set 405 is transmitted by a radio node according to a fixed burst set period. In other words, SS burst 410 may be repeated during each SS burst set 405.

[0063] In some aspects, SSB415 may include an SSB index, which may correspond to the beam used to carry SSB415. UE 120 may monitor and / or measure SSB415 using different receive (Rx) beams during the initial network access procedure and / or cell search procedure, and other examples. Based at least in part on monitoring and / or measurement, UE 120 may indicate one or more SSB415s with optimal signal parameters (e.g., Reference Signal Received Power (RSRP) parameters) to base station 110. Base station 110 and UE 120 may use the indicated one or more SSB415s to select one or more beams to be used for communication between base station 110 and UE 120 (e.g., for the Random Access Channel (RACH) procedure). Alternatively or additionally, UE 120 may use SSB415 and / or the SSB index to determine cell timing for the cell (e.g., serving cell) through which it receives SSB415.

[0064] As pointed out above, Figure 4 This is provided as an example. Other examples may differ from the one provided. Figure 4 The example described.

[0065] Figure 5 This is a schematic diagram illustrating an example 500 of an SSB configuration according to this disclosure. In some aspects, as described herein, in Figure 5 The SSB configuration shown corresponds to the time-frequency structure associated with the SSB, where the base station periodically broadcasts or otherwise transmits the SSB on the access link (e.g., the Uu interface) to achieve initial network acquisition and synchronization for the UE. Alternatively or concurrently, in Figure 5 The SSB configuration shown can be used for cell search on the access link, beam management and / or beam selection on the access link, and other examples. For example, as shown, the SSB may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), which carries information that the UE can use to derive, decode, or otherwise obtain necessary information for accessing the cell provided by the base station (e.g., radio frame boundaries, physical cell identifiers, and / or a main information block (MIB) providing parameters for obtaining System Information Block Type 1 (SIB1), and other examples). Furthermore, in some aspects, the PBCH includes a DMRS (which may be referred to herein as PBCH DMRS), which carries a pseudo-noise (PN) sequence or other suitable information to enable the UE to perform channel estimation to demodulate or decode the PBCH.

[0066] Usually, such as Figure 5As shown, each SSB transmitted on the access link occupies four (4) consecutive symbols in the time domain (shown as s0 to s3) and includes the PSS, SSS, and PBCH distributed across 240 subcarriers in the frequency domain (e.g., 20 RBs, each RB comprising 12 subcarriers). Figure 5 As shown, the PSS occupies the first symbol (s0) and spans 127 subcarriers, while the SSS is located in the third symbol (s2) and also spans 127 subcarriers, with 8 unused subcarriers above the SSS and 9 unused subcarriers below it. Figure 5 As further shown, the PBCH occupies two full symbols, spanning 240 subcarriers in the second symbol (s1) and the fourth symbol (s3), and the PBCH partially occupies the third symbol (s2), spanning 48 subcarriers above and below the SSS, thus the PBCH occupies 576 subcarriers across three symbols. Furthermore, the PBCH DMRS occupies three (3) REs in each RB allocated to the PBCH, thus the PBCH DMRS occupies 144 REs across three symbols (e.g., occupies 3 REs in each of the 48 RBs allocated to the PBCH), and the remaining 432 REs in the 48 RBs allocated to the PBCH carry the PBCH payload.

[0067] Therefore, based on Figure 5The SSB configuration shown typically has a minimum bandwidth based at least in part on the subcarrier spacing in an NR network. For example, in an NR network, the subcarrier spacing can be 15 kHz, 30 kHz, 60 kHz, and / or 120 kHz. In the case where the base station communicates in an operating band using the lowest possible subcarrier spacing of 15 kHz, each RB may require a bandwidth of 0.18 MHz (e.g., based on 12 subcarriers per RB). Accordingly, because the SSB spans 240 subcarriers across 20 RBs, and the minimum subcarrier spacing supported in an NR network is 15 kHz, the minimum bandwidth for the SSB in an NR network is 3.6 MHz. However, in some cases, the base station may communicate in an operating band with a maximum bandwidth narrower than the minimum SSB bandwidth of 3.6 MHz, which may prevent the base station from communicating using the NR RAT. For example, in some cases, a base station may communicate using Frequency Division Duplex (FDD) in a 900MHz band (sometimes referred to as the 33cm band), which includes 5MHz of spectrum between 896-901MHz and another 5MHz of spectrum between 935-940MHz. For instance, a base station may be allocated 3MHz of spectrum for uplink communication and 3MHz for downlink communication, which is below the minimum SSB bandwidth of 3.6MHz. Therefore, when a base station is configured to communicate in an operating band with a maximum bandwidth (e.g., below 3.6MHz) that is below the minimum SSB bandwidth, the base station cannot properly encode or otherwise configure the SSB, which is an always-on signal that includes the minimum necessary signal to enable access to the NR network.

[0068] Some aspects described herein relate to techniques and apparatus for implementing SSB configurations for an operating frequency band with a maximum bandwidth narrower than the minimum SSB bandwidth. For example, in the case where the minimum SSB bandwidth is 3.6 MHz and the maximum bandwidth of the operating frequency band is 3 MHz, some aspects described herein implement SSB configurations occupying less than 3 MHz. More generally, as described herein, in the case where the maximum bandwidth of the operating frequency band is narrower than the minimum SSB bandwidth, some aspects can provide SSB configurations occupying bandwidth within the maximum bandwidth of the operating frequency band. In this way, a base station can configure and transmit an SSB carrying the minimum necessary signals (e.g., PSS, SSS, and PBCH) to enable access to the NR network, which can significantly expand the spectrum in which NR can be deployed. For example, by enabling a base station to configure and transmit an SSB occupying less than the minimum SSB bandwidth, NR can be deployed in a low-frequency band spectrum that may be well-suited for covering large areas and / or other limited spectrum (e.g., enabling broadband service in public power grid private networks or other industries).

[0069] As pointed out above, Figure 5 This is provided as an example. Other examples may differ from the one provided. Figure 5 The example described.

[0070] Figures 6A-6E This is a schematic diagram illustrating example 600 associated with an SSB configuration for a bandwidth narrower than the minimum bandwidth, according to this disclosure. Figure 6A As shown, Example 600 includes communication between a base station (e.g., base station 110) and a UE (e.g., UE 120). In some aspects, the base station and the UE can communicate in a wireless network such as wireless network 100. As described herein, the base station and the UE can communicate via a radio access link, which may include an uplink and a downlink. Furthermore, as described herein, the base station can be configured to communicate using an operating frequency band with a maximum bandwidth narrower than the minimum SSB bandwidth. For example, the base station can be configured to communicate using up to 3 MHz of spectrum in a 900 MHz band on the downlink (which is lower than the minimum 3.6 MHz bandwidth for SSBs in NR networks). However, it will be understood that the aspects described herein can be applied in any suitable operating frequency band with a maximum bandwidth narrower than the minimum SSB bandwidth.

[0071] As in Figure 6A As shown by reference numeral 610 in the accompanying drawings, a base station can determine the SSB configuration for an operating band, at least in part, based on a maximum bandwidth that is narrower than the minimum SSB bandwidth required for a radio access link. For example, see the following reference... Figure 6B In further detail, the base station can utilize traditional SSBs (e.g., such as...) Figure 5 One or more edges of the SSB (as shown) are punched, and the RB set is transmitted only in the frequency region within the maximum bandwidth of the operating band. In this case, the base station does not transmit PBCHRBs located in the punched edges (e.g., outside the frequency region within the maximum bandwidth of the operating band). Alternatively or alternatively, see the following description. Figure 6C In further detail, the SSB configuration may include an additional (fifth) symbol, which is added to the conventional SSB configuration to carry the PBCH RB located in the punched edge. Alternatively or alternatively, see below for reference. Figure 6D In further detail, a base station can divide a conventional SSB into two parts, comprising a first part in the upper frequency region and a second part in the lower frequency region. In this case, the first part can be transmitted during the first SSB timing, and the second part can be transmitted during the second SSB timing, which is time-division multiplexed (TDM) with the first SSB timing. Alternatively, as described below... Figure 6EIn further detail, where the maximum bandwidth of the operating frequency band is narrower than the minimum sidelink SSB bandwidth (e.g., based on a minimum subcarrier spacing of 15 kHz for a sidelink SSB configuration spanning eleven (11) RBs in the frequency domain, which is 1.98 MHz), the base station may repurpose the sidelink SSB configuration for access links.

[0072] As in Figure 6A Furthermore, as shown by reference numeral 612 in the accompanying drawing, the base station can transmit an SSB based on the SSB configuration used for the operating frequency band. For example, as described above, the SSB is an always-on signal that includes the minimum necessary signals to enable access to the cell provided by the base station. Accordingly, as referenced above... Figure 4 In further detail, the base station can periodically transmit SS bursts carrying multiple SSBs, each SSB being transmitted via a specific beam with pre-specified intervals and directions. Typically, each SSB can be described in more detail below. Figure 6B-6E The configuration is shown in one or more of the diagrams. Furthermore, in cases where the SSB is divided into multiple parts (e.g., as shown in the diagrams),... Figure 6D As shown, the base station can transmit the first part of the SSB during the first SSB timing and the second part of the SSB during the second SSB timing when performing TDM with the first SSB timing.

[0073] As in Figure 6AAs further illustrated by reference numeral 614, the UE can receive and decode the SSB at least in part based on the SSB configuration for the operating band. For example, in some aspects, the SSB configuration can be predefined for the operating band, or the UE can determine the SSB configuration by performing blind decoding of the PN sequence for the PBCH DMRS. In such a case, the UE can determine the punctured edge of the SSB based on the predefined SSB configuration and / or blind decoding for the operating band, thereby avoiding channel estimation using the PBCH DMRS in the punctured edge and only decoding the RBs located in the frequency region within the maximum bandwidth of the operating band. Alternatively, where additional symbols are added to the SSB to carry the PBCH RBs in the punctured edge, the SSB can reuse the conventional DMRS sequence, and the RE mapping for the PBCH can be modified to indicate the position of the PBCH RE and / or PBCH DMRS RE in the additional symbols. Alternatively, where the SSB is transmitted in separate (e.g., overlapping) portions at different SSB times, the UE can combine the separate portions transmitted at different SSB times. Alternatively, where the sidelink SSB configuration is repurposed for an access link, the UE can decode the SSB in a similar manner to the sidelink SSB, except that the final symbol of the SSB can be repurposed for use outside the FDD operating band (e.g., transmitting repeated PSS, SSS, or PBCH symbols, and / or transmitting another downlink transmission).

[0074] In some aspects, such as Figure 6B As shown and as described above, the SSB configuration for the operating frequency band can be based on... Figure 5 The conventional SSB configuration shown herein, in addition to the possibility of punching one or more edges of the conventional SSB, allows for the punching of one or more RBs in the upper and / or lower frequency regions, as illustrated by reference numeral 620. Correspondingly, as illustrated by reference numeral 622, the base station can transmit only the set of RBs within the maximum bandwidth of the operating band. For example, as shown, the PSS and SSS can typically occupy the center frequency region of the SSB (e.g., comprising 127 subcarriers spanning 12 RBs), and only the PBCH occupies the edges of the SSB (e.g., the upper four RBs and the lower four RBs). Accordingly, one or more edges can be punched so that no change to the conventional SSB configuration is required for the PSS and SSS in the center frequency region, and one or more techniques described herein can be used to compensate for the punching of PBCH RBs located outside the frequency region within the maximum bandwidth of the operating band.

[0075] exist Figure 6BIn the example shown, the base station can be configured to communicate in an operating frequency band with a maximum bandwidth of 3 MHz, and the two uppermost RBs and two lowermost RBs can be perforated, such that the base station transmits only a center frequency region comprising 16 RBs, which corresponds to 2.88 MHz with a 15 kHz subcarrier spacing. Alternatively, in some aspects, the four uppermost RBs (RBs indexed from 0 to 4) in one edge can be perforated, and the base station can transmit RBs indexed from 4 to 19; or the four lowermost RBs (RBs indexed from 16 to 19) in one edge can be perforated, and the base station can transmit RBs indexed from 0 to 15. Furthermore, it will be understood that the number of RBs perforated in one or more edges and / or frequency regions of the transmitted RBs can vary depending on the maximum bandwidth and / or minimum SSB bandwidth of the operating frequency band. For example, if the maximum bandwidth of the operating band is higher than 3.24 MHz, the base station can punch two RBs (e.g., two RBs in one edge or one RB in each edge) and transmit the RBs in a frequency region spanning 18 RBs (or 3.24 MHz with a 15 kHz subcarrier spacing). In another example, if the maximum bandwidth of the operating band is lower than 2.88 MHz, the base station can punch five or more RBs (e.g., two RBs in one edge and three RBs in another edge) and transmit the RBs in a frequency region spanning the number of RBs within the maximum bandwidth of the operating band.

[0076] In some aspects, as mentioned above, RBs can typically be punctured in one or more edges of a conventional SSB that are occupied only by the PBCH. Therefore, the 127 subcarriers used for the PSS and SSS can be reused in a manner similar to that of a conventional SSB configuration. Furthermore, since both the SSS and PBCH occupy the third symbol, the UE typically expects the SSS and PBCH to have equivalent Energy Per Resource Element (EPRE), so the base station can perform power boosting for RBs in the transmitted frequency region to ensure that the SSS and PRCH DMRS have equivalent EPRE. Moreover, power boosting can compensate for the performance loss that puncturing might cause to the PBCH. In some aspects, when for such... Figure 6B When the SSB configured as shown performs decoding, it can instruct the UE to puncture the SSB to avoid the performance loss that might occur if the UE uses punctured PBCHDMRS for channel estimation. For example, as Figure 6BAs shown, each PBCHRB comprises twelve (12) REs, including three (3) REs occupied by PBCHDMRS and nine (9) REs occupied by the PBCH payload. Accordingly, the UE can determine one or more punctured edges of the SSB and can avoid using PBCHDMRS in the punctured edges to perform channel estimation, and can decode only the transmitted set of RBs (e.g., frequency regions within the maximum bandwidth of the operating band). In this case, puncturing may not have a significant impact on the UE decoding the PBCHRBs in the transmitted (unpunctured) frequency regions, since conventional PBCHs typically have a low coding rate (e.g., 1 / 16) to achieve robust PBCH detection. Alternatively, the PBCH may typically include a set of bits, a portion of which is predefined (e.g., for the operating band), which improves PBCH detection performance by enabling the UE to decode only the remaining unknown bits from the unpunctured frequency regions within the maximum bandwidth of the operating band.

[0077] In some aspects, as described above, the puncturing edge of the SSB can be predefined for the operating frequency band associated with the base station, or the UE can determine the puncturing edge by performing blind detection of a 108-length PN sequence for transmission in the unpunctured frequency region within the maximum bandwidth of the operating frequency band. For example, Figure 6B The diagram illustrates a case where the un-punctured frequency region comprises sixteen (16) RBs (spanning 2.88 MHz). In this case, the PBCH occupies 16 RBs in the second symbol, 4 RBs in the third symbol, and 16 RBs in the fourth symbol, for a total of 36 RBs. Accordingly, since each PBCHRB includes three REs allocated to the PBCHDMRS, the PN sequence for the PBCHDMRS has a length of 108 (e.g., 3 REs allocated to the PBCHDMRS in each of the 36 PBCHRBs). In this case, since the PBCHDMRS has a length of 144 in the conventional SSB (e.g., 3 REs allocated to the PBCHDMRS in each of the 48 PBCHRBs), the UE can determine the punctured edge at least in part based on the shorter length of the PBCHDMRS relative to the conventional PBCH (e.g., a PBCHDMRS with a length of 108 indicates 12 PBCHRBs to be punctured at the edge of the SSB).

[0078] In some aspects, such as in Figure 6CAs shown by reference numeral 630 in the accompanying drawing, the SSB configuration for the operating band can include additional (e.g., a fifth) symbols that can be dedicated to carrying PBCH / DMRS to compensate for punctured PBCHRBs in the second through fourth symbols. For example, if N PBCHRBs are punctured in the second through fourth symbols, the additional symbols can include N PBCHRBs to compensate for conventional PBCHRBs located outside the unpunctured / transmitted frequency areas within the maximum bandwidth of the operating band. In this case, the PSS and SSS with 127 subcarriers can be reused, and the same coding rate can be used for the PBCH because the punctured PBCHRBs are transmitted in the additional symbols. Furthermore, in this case, the conventional 144-length sequence can be used for PBCHDMRS because all 48 PBCHRBs are transmitted. Additionally, in this case, the RE mapping for PBCH / DMRS can be modified to indicate the location of the PBCH DMRS REs within the SSB. For example, RE mapping can indicate the location of PBCH DMRS REs spanning the entire transmitted frequency region in the first PBCH symbol, the set of RBs at the edge of the SSS in the second PBCH symbol, the entire transmitted frequency region in the third PBCH symbol, and the added RBs in the fourth PBCH symbol. For example, in Figure 6C In this context, the RE mapping can indicate the position of the RE carrying PBCHDMRS in the following: a first PBCH symbol with 16 PBCHRBs, a second PBCH symbol with 4 PBCHRBs at the edge of the SSS, a third PBCH symbol with 16 PBCHRBs, and a fourth PBCH symbol with 12 additional PBCHRBs to compensate for the 12 conventional PBCHRBs outside the frequency region within the maximum bandwidth of the operating frequency band.

[0079] In some aspects, such as Figure 6DAs shown, the SSB configuration can be associated with a truncated PBCH transmission via TDM in multiple SSB timings. For example, as indicated by reference numerals 640 and 642, the RBs associated with the conventional PBCH can be divided into two parts, comprising a first part in the upper frequency region within the maximum bandwidth of the operating band and a second part in the lower frequency region within the maximum bandwidth of the operating band. For example, in the case where the operating band has a maximum bandwidth between 2.88 MHz and 3.6 MHz, the first part may include the top 16 RBs (e.g., RBs indexed from 9 to 15), and the second part may include the bottom 16 RBs (e.g., RBs indexed from 4 to 19). In this way, the base station can transmit a first SSB transmission in a first SSB timing and a second SSB transmission in a second SSB timing where TDM is performed with the first SSB timing (e.g., occupying different time resources). Accordingly, when decoding the SSB, the UE can combine the first SSB transmission with the second SSB transmission (e.g., when a low signal-to-noise ratio (SNR) is present). Alternatively, the base station can use a punch-hole configuration to transmit only the first SSB transmission or only the second SSB transmission, as described above. Figure 6B As described. In this scenario, if the base station does not use power boosting to improve the detection and decoding reliability of RBs transmitted within the maximum bandwidth of the operating frequency band, the UE can combine multiple SSBs across multiple SSB timings to compensate for the performance loss caused by puncturing PBCHRBs outside the transmitted frequency region.

[0080] Alternatively, when the maximum bandwidth of the operating band is equal to or greater than the minimum bandwidth of the sidelink SSB, the base station can repurpose the sidelink SSB configuration for the operating band, rather than modifying the traditional SSB configuration to fit within the maximum bandwidth of the operating band. For example, as in Figure 6EAs shown by reference numeral 650 in the attached figure, the sidelink SSB configuration typically includes eleven (11) RBs within thirteen (13) symbols in the time slot, where the Physical Sidelink Broadcast Channel (PSBCH) is transmitted in the first symbol (s0) and the sixth through thirteenth symbols (s5 through s12), the sidelink PSS (S-PSS) is transmitted in the second and third symbols (s1 and s2), and the sidelink SSS (S-SSS) is transmitted in the fourth and fifth symbols (s3 and s4). In this case, the S-PSS and S-SSS can occupy 127 subcarriers and use the same sequence as the PSS and SSS used for the access link SSB, and the PSBCH / DMRS can occupy 132 subcarriers. In the sidelink SSB configuration, since the sidelink is configured as a time division duplex (TDD) band, the last (fourteenth) symbol is reserved as a gap symbol for downlink / uplink return.

[0081] Accordingly, such as in Figure 6E Furthermore, as shown by reference numeral 652, if the maximum bandwidth of the operating band is equal to or greater than the minimum bandwidth of the sidelink SSB (e.g., based on a width of 11 RBs and a minimum subcarrier spacing of 15 kHz, which is 1.98 MHz), the sidelink SSB configuration can be substantially repurposed as an access link SSB. In this case, as shown, the PBCH can be transmitted in the first symbol (s0) and the sixth to thirteenth symbols (s5 to s12), the PSS can be transmitted in the second and third symbols (s1 and s2), and the SSS can be transmitted in the fourth and fifth symbols (s3 and s4). Moreover, where the operating band is configured for FDD communication (e.g., downlink / uplink retuning is not required because the band used for transmitting the SSB is only used for downlink communication), the final symbol of the time slot can be repurposed instead of being left unused as a gap for downlink / uplink retuning. For example, the final symbol (s13) can be used to transmit repeated PSS symbols, repeated SSS symbols, repeated PBCH symbols (e.g., repeating the first PBCH symbol starting from symbol s0 to improve frequency offset estimation), or transmit another downlink transmission (e.g., SIB1 and / or periodic channel state information reference signal (CSI-RS) and other examples).

[0082] As pointed out above, Figures 6A-6E This is provided as an example. Other examples may differ from the one provided. Figures 6A-6E The example described.

[0083] Figure 7This is a schematic diagram illustrating, for example, an example process 700 performed by a UE according to various aspects of this disclosure. Example process 700 is an example in which a UE (e.g., UE 120) performs operations associated with an SSB configuration for a bandwidth narrower than the minimum bandwidth.

[0084] like Figure 7 As shown, in some aspects, process 700 may include: receiving from a base station an SSB associated with an SSB configuration for an operating frequency band having a maximum bandwidth narrower than the minimum SSB bandwidth for the access link (box 710). For example, a UE (e.g., using...) Figure 9 The receiving component 902 depicted can receive from the base station an SSB associated with an SSB configuration for an operating band having a maximum bandwidth that is narrower than the minimum SSB bandwidth for the access link, as described above.

[0085] like Figure 7 As further shown, in some aspects, process 700 may include: decoding the SSB at least in part based on the SSB configuration (block 720). For example, the UE (e.g., using...) Figure 9 The decoding component 908 described herein can decode the SSB at least in part based on the SSB configuration, as described above.

[0086] 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.

[0087] In the first aspect, the SSB includes one or more punched edges, such that the SSB includes a set of RBs only in the frequency region within the maximum bandwidth of the operating frequency band.

[0088] In the second aspect, either alone or in combination with the first aspect, a portion of the bits transmitted in the PBCH of the SSB is predefined.

[0089] In the third aspect, either alone or in combination with one or more of the first and second aspects, the RB set in the frequency region carries SSS and PBCH DMRS with equivalent EPRE.

[0090] In the fourth aspect, decoding the SSB, either alone or in combination with one or more of the first to third aspects, includes: avoiding the use of one or more PBCH DMRS in the punched edges to perform channel estimation; and decoding only the set of RBs in the frequency region of the SSB that is within the maximum bandwidth of the operating frequency band.

[0091] In the fifth aspect, decoding the SSB, either alone or in combination with one or more of the first to fourth aspects, includes determining one or more punched edges based at least in part on a configuration associated with the operating frequency band or at least in part on blind detection of a PN sequence associated with a PBCH in a frequency region within the maximum bandwidth of the operating frequency band of the SSB.

[0092] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the SSB includes a symbol to carry one or more PBCH RBs located outside one or more punched edges of the frequency region within the maximum bandwidth of the SSB's operating frequency band.

[0093] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the SSB configuration includes RE mapping for symbols to carry one or more PBCH RBs.

[0094] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the SSB includes a first set of RBs and a second set of RBs, wherein the first set of RBs is transmitted only in the upper frequency region within the maximum bandwidth of the operating frequency band during the first SSB timing, and the second set of RBs is transmitted only in the lower frequency region within the maximum bandwidth of the operating frequency band during the second SSB timing.

[0095] In the ninth aspect, decoding an SSB, either alone or in combination with one or more of the first to eighth aspects, includes combining a first portion of the PBCH carried in the upper frequency region during a first SSB timing with a second portion of the PBCH carried in the lower frequency region during a second SSB timing.

[0096] In the tenth aspect, either alone or in combination with one or more of the first to ninth aspects, the SSB configuration is at least in part based on a side link SSB configuration that requires a minimum bandwidth narrower than the maximum bandwidth of the operating band.

[0097] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, the SSB configuration includes an initial symbol group carrying the PSS, SSS, and PBCH, and wherein the SSB configuration also includes a final symbol carrying repeated PSS symbols, repeated SSS symbols, repeated PBCH symbols, or downlink transmissions.

[0098] Although Figure 7 An example box of process 700 is shown, but in some aspects, process 700 may include... Figure 7The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in process 700 may be executed in parallel.

[0099] Figure 8 This is a schematic diagram illustrating, for example, an example process 800 performed by a base station according to various aspects of this disclosure. Example process 800 is an example in which a base station (e.g., base station 110) performs operations associated with an SSB configuration for a bandwidth narrower than the minimum bandwidth.

[0100] like Figure 8 As shown, in some aspects, process 800 may include: determining an SSB configuration for an operating frequency band associated with a base station, wherein the operating frequency band has a maximum bandwidth that is narrower than the minimum SSB bandwidth used for the access link (box 810). For example, the base station (e.g., using in...) Figure 10 The determining component 1008 described herein can determine the SSB configuration for the operating band associated with the base station, wherein the operating band has a maximum bandwidth that is narrower than the minimum SSB bandwidth for the access link, as described above.

[0101] like Figure 8 As further shown, in some aspects, process 800 may include: transmitting an SSB (block 820) at least in part based on the SSB configuration. For example, a base station (e.g., using...) Figure 10 The transmitting component 1004 described herein can transmit SSBs at least in part based on the SSB configuration, 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 the first aspect, the SSB includes one or more punched edges, such that the SSB includes a set of RBs only in the frequency region within the maximum bandwidth of the operating frequency band.

[0104] In the second aspect, either alone or in combination with the first aspect, a portion of the bits transmitted in the PBCH of the SSB is predefined.

[0105] In the third aspect, either alone or in combination with one or more of the first and second aspects, the RB set in the frequency region carries SSS and PBCH DMRS with equivalent EPRE.

[0106] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the SSB includes a PN sequence associated with the PBCH in the frequency region of the SSB within the maximum bandwidth of the operating frequency band.

[0107] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the SSB includes a symbol to carry one or more PBCH RBs located outside one or more punched edges of the frequency region within the maximum bandwidth of the SSB's operating frequency band.

[0108] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the SSB configuration includes RE mapping for symbols to carry one or more PBCH RBs.

[0109] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the SSB includes a first set of RBs and a second set of RBs, wherein the first set of RBs is transmitted only in the upper frequency region within the maximum bandwidth of the operating frequency band during the first SSB timing, and the second set of RBs is transmitted only in the lower frequency region within the maximum bandwidth of the operating frequency band during the second SSB timing.

[0110] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the SSB configuration is at least in part based on a side link SSB configuration that requires a minimum bandwidth narrower than the maximum bandwidth of the operating band.

[0111] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the SSB configuration includes an initial symbol group carrying the PSS, SSS, and PBCH, and wherein the SSB configuration also includes a final symbol carrying a repeated PSS symbol, a repeated SSS symbol, a repeated PBCH symbol, or a downlink transmission.

[0112] Although Figure 8 An example box of process 800 is shown, but in some aspects, process 800 may include... Figure 8 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in process 800 may be executed in parallel.

[0113] Figure 9This is a block diagram of an example device 900 for wireless communication. Device 900 may be a UE, or a UE may include device 900. In some aspects, device 900 includes a receiving component 902 and a transmitting component 904, which can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 900 can use the receiving component 902 and the transmitting component 904 to communicate with another device 906 (such as a UE, a base station, or another wireless communication device). As further shown, device 900 may include a decoding component 908 and other examples.

[0114] In some respects, device 900 can be configured to perform the functions described herein. Figures 6A-6E One or more operations described herein. Alternatively or concurrently, device 900 may be configured to perform one or more processes described herein, such as... Figure 7 The process is 700. In some aspects, in Figure 9 The device 900 and / or one or more components shown may include the above-described components. Figure 2 One or more components of the UE as described. Alternatively or in addition, in Figure 9 One or more components shown can be combined with the above. Figure 2 The description refers to implementation within one or more components. Alternatively, one or more components in the set of components may be implemented, at least partially, as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of that component.

[0115] Receiver 902 may receive communications from device 906, such as reference signals, control information, data communications, or combinations thereof. Receiver 902 may provide the received communications to one or more other components of device 900. In some aspects, receiver 902 may perform signal processing on the received communications (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, and other examples), and may provide the processed signal to one or more other components of device 906. In some aspects, receiver 902 may include the combinations described above. Figure 2 The described UE includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0116] Transmitting component 904 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 906. In some aspects, one or more other components of device 906 can generate communications and provide the generated communications to transmitting component 904 for transmission to device 906. In some aspects, transmitting component 904 can perform signal processing on the generated communications (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, and other examples), and can transmit the processed signal to device 906. In some aspects, transmitting component 904 can include the combinations described above. Figure 2 The described UE includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 904 may be co-located with the receive component 902 in a transceiver.

[0117] The receiving component 902 can receive from the base station an SSB associated with an SSB configuration for an operating frequency band having a maximum bandwidth narrower than the minimum SSB bandwidth for the access link. The decoding component 908 can decode the SSB at least in part based on the SSB configuration.

[0118] Decoding component 908 can avoid performing channel estimation using PBCHDMRS in one or more punched edges of the SSB. Decoding component 908 can decode only the set of RBs in the frequency region within the maximum bandwidth of the SSB's operating band.

[0119] The decoding component 908 may determine one or more punched edges based at least in part on the configuration associated with the operating frequency band or at least in part on blind detection of the PN sequence associated with the PBCH in the frequency region within the maximum bandwidth of the operating frequency band in the SSB.

[0120] The decoding component 908 can combine the first portion of the PBCH carried in the upper frequency region during the first SSB timing with the second portion of the PBCH carried in the lower frequency region during the second SSB timing.

[0121] exist Figure 9 The number and arrangement of components shown are provided as an example. In reality, they can exist in... Figure 9 The components shown are compared to additional components, fewer components, different components, or components arranged in a different manner. Furthermore, in Figure 9 The two or more components shown can be implemented within a single component, or in Figure 9 The single component shown can be implemented as multiple distributed components. Alternatively, in Figure 9The collection of (one or more) components shown can perform actions described as being performed by... Figure 9 The other set of components shown performs one or more functions.

[0122] Figure 10 This is a block diagram of an example device 1000 for wireless communication. Device 1000 may be a base station, or a base station may include device 1000. In some aspects, device 1000 includes a receiving component 1002 and a transmitting component 1004, which can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 1000 can use the receiving component 1002 and the transmitting component 1004 to communicate with another device 1006 (such as a UE, a base station, or another wireless communication device). As further shown, device 1000 may include a determining component 1008 and other examples.

[0123] In some respects, device 1000 can be configured to perform the functions described herein. Figures 6A-6E One or more operations described herein. Alternatively or concurrently, the apparatus 1000 may be configured to perform one or more processes described herein, such as... Figure 8 The process is 800. In some aspects, in Figure 10 The device 1000 and / or one or more components shown may include the above-described components. Figure 2 One or more components of the described base station. Alternatively or in addition, in Figure 10 One or more components shown can be combined with the above. Figure 2 The description refers to implementation within one or more components. Alternatively, one or more components in the set of components may be implemented, at least partially, as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of that component.

[0124] Receiver 1002 may receive communications from device 1006, such as reference signals, control information, data communications, or combinations thereof. Receiver 1002 may provide the received communications to one or more other components of device 1000. In some aspects, receiver 1002 may perform signal processing on the received communications (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, and other examples), and may provide the processed signal to one or more other components of device 1006. In some aspects, receiver 1002 may include the elements described above. Figure 2 The described base station includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0125] Transmitting component 1004 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1006. In some aspects, one or more other components of device 1006 can generate communications and provide the generated communications to transmitting component 1004 for transmission to device 1006. In some aspects, transmitting component 1004 can perform signal processing (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, and other examples) on the generated communications and can transmit the processed signals to device 1006. In some aspects, transmitting component 1004 can include the combinations described above. Figure 2 The described base station includes one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof. In some aspects, the transmit component 1004 may be co-located with the receive component 1002 in a transceiver.

[0126] The determining component 1008 can determine the SSB configuration for the operating frequency band associated with the base station, wherein the operating frequency band has a maximum bandwidth that is narrower than the minimum SSB bandwidth for the access link. The transmitting component 1004 can transmit the SSB at least in part based on the SSB configuration.

[0127] exist Figure 10 The number and arrangement of components shown are provided as an example. In reality, they can exist in... Figure 10 The components shown are compared to additional components, fewer components, different components, or components arranged in a different manner. Furthermore, in Figure 10 The two or more components shown can be implemented within a single component, or in Figure 10 The single component shown can be implemented as multiple distributed components. Alternatively, in Figure 10 The collection of (one or more) components shown can perform actions described as being performed by... Figure 10 The other set of components shown performs one or more functions.

[0128] The following provides an overview of some aspects of this disclosure:

[0129] Aspect 1: A method of wireless communication performed by a UE, comprising: receiving from a base station an SSB associated with an SSB configuration for an operating frequency band having a maximum bandwidth narrower than a minimum SSB bandwidth for an access link; and decoding the SSB at least in part based on the SSB configuration.

[0130] Aspect 2: According to the method of aspect 1, wherein the SSB includes one or more punched edges, such that the SSB includes a set of RBs only in the frequency region within the maximum bandwidth of the operating frequency band.

[0131] Aspect 3: The method according to any one of Aspects 1-2, wherein a portion of the bits transmitted in the PBCH of the SSB is predefined.

[0132] Aspect 4: According to the method of aspect 2, wherein the set of RBs in the frequency region carries SSS and PBCHDMRS with equivalent EPRE.

[0133] Aspect 5: The method according to any one of Aspects 2-4, wherein decoding the SSB comprises: avoiding channel estimation using PBCH DMRS in the one or more punched edges; and decoding only the set of RBs in the frequency region of the SSB within the maximum bandwidth of the operating frequency band.

[0134] Aspect 6: The method according to any one of Aspects 2-5, wherein decoding the SSB comprises: determining the one or more punched edges based at least in part on a configuration associated with the operating frequency band or at least in part on blind detection of a PN sequence associated with a PBCH in the frequency region of the SSB within the maximum bandwidth of the operating frequency band.

[0135] Aspect 7: The method according to any one of Aspects 2-6, wherein the SSB includes a symbol to carry one or more PBCH RBs located outside the frequency region of the SSB within the maximum bandwidth of the operating frequency band.

[0136] Aspect 8: The method according to aspect 7, wherein the SSB configuration includes RE mapping for the symbols to carry the one or more PBCHRBs.

[0137] Aspect 9: According to the method of aspect 1, wherein the SSB includes a first set of RBs and a second set of RBs, the first set of RBs being transmitted only in the upper frequency region within the maximum bandwidth of the operating frequency band during a first SSB timing, and the second set of RBs being transmitted only in the lower frequency region within the maximum bandwidth of the operating frequency band during a second SSB timing.

[0138] Aspect 10: According to the method of aspect 9, wherein decoding the SSB includes: combining a first portion of the PBCH carried in the upper frequency region during the first SSB timing with a second portion of the PBCH carried in the lower frequency region during the second SSB timing.

[0139] Aspect 11: The method according to aspect 1, wherein the SSB configuration is at least in part based on a side link SSB configuration that requires a minimum bandwidth narrower than the maximum bandwidth of the operating band.

[0140] Aspect 12: According to the method of aspect 11, wherein the SSB configuration includes an initial symbol group carrying PSS, SSS and PBCH, and wherein the SSB configuration further includes carrying duplicate PSS symbols, duplicate SSS symbols, duplicate PBCH symbols, or final symbols for downlink transmission.

[0141] Aspect 13: A method of wireless communication performed by a base station, comprising: determining an SSB configuration for an operating frequency band associated with the base station, wherein the operating frequency band has a maximum bandwidth narrower than a minimum SSB bandwidth for an access link; and transmitting an SSB at least in part based on the SSB configuration.

[0142] Aspect 14: The method according to aspect 13, wherein the SSB includes one or more punched edges such that the SSB includes a set of RBs only in the frequency region within the maximum bandwidth of the operating frequency band.

[0143] Aspect 15: The method according to any one of Aspects 13-14, wherein a portion of the bits transmitted in the PBCH of the SSB is predefined.

[0144] Aspect 16: The method according to any one of Aspects 14-15, wherein the set of RBs in the frequency region carries SSS and PBCH DMRS with equivalent EPRE.

[0145] Aspect 17: The method according to any one of Aspects 14-16, wherein the SSB includes a PN sequence associated with a PBCH in the frequency region of the SSB within the maximum bandwidth of the operating frequency band.

[0146] Aspect 18: The method according to any one of Aspects 14-17, wherein the SSB includes a symbol to carry one or more PBCH RBs located outside the frequency region of the SSB within the maximum bandwidth of the operating frequency band.

[0147] Aspect 19: The method according to aspect 18, wherein the SSB configuration includes RE mapping for the symbols to carry the one or more PBCHRBs.

[0148] Aspect 20: According to the method of aspect 13, wherein the SSB includes a first set of RBs and a second set of RBs, the first set of RBs being transmitted only in the upper frequency region within the maximum bandwidth of the operating frequency band during a first SSB timing, and the second set of RBs being transmitted only in the lower frequency region within the maximum bandwidth of the operating frequency band during a second SSB timing.

[0149] Aspect 21: The method according to aspect 13, wherein the SSB configuration is at least in part based on a side link SSB configuration that requires a minimum bandwidth narrower than the maximum bandwidth of the operating band.

[0150] Aspect 22: According to the method of aspect 21, wherein the SSB configuration includes an initial symbol group carrying PSS, SSS and PBCH, and wherein the SSB configuration further includes carrying duplicate PSS symbols, duplicate SSS symbols, duplicate PBCH symbols, or final symbols for downlink transmission.

[0151] Aspect 23: 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 the method according to any one of aspects 1-12.

[0152] Aspect 24: An apparatus 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 a method according to any one of aspects 1-12.

[0153] Aspect 25: An apparatus for wireless communication, comprising at least one unit for performing the method according to any one of aspects 1-12.

[0154] Aspect 26: A non-transitory computer-readable medium storing code for wireless communication, said code comprising instructions executable by a processor to perform a method according to any one of aspects 1-12.

[0155] Aspect 27: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform a method according to any one of aspects 1-12.

[0156] Aspect 28: 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 according to any one of aspects 13-22.

[0157] Aspect 29: An apparatus 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 a method according to any one of aspects 13-22.

[0158] Aspect 30: An apparatus for wireless communication, comprising at least one unit for performing the method according to any one of aspects 13-22.

[0159] Aspect 31: A non-transitory computer-readable medium storing code for wireless communication, said code comprising instructions executable by a processor to perform a method according to any one of aspects 13-22.

[0160] Aspect 32: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform a method according to any one of aspects 13-22.

[0161] The foregoing disclosure provides explanations and descriptions, but is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made based on the foregoing disclosure, or modifications and variations may be derived from practice in the aspects.

[0162] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, "software" should be interpreted broadly as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures and / or functions, and other examples. As used herein, processors are implemented using hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented using various forms of hardware and / or combinations of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not a limitation in any respect. Therefore, while the operation and behavior of systems and / or methods are described herein without reference to specific software code, it is to be understood that software and hardware can be designed to implement systems and / or methods, at least in part, based on the descriptions herein.

[0163] As used in this article, depending on the context, satisfying the threshold can refer to a value 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.

[0164] Even if a specific combination of features is recited in the claims and / or disclosed in the specification, such combinations are not intended to limit the disclosure of the aspects. In fact, many of these features can be combined in ways that are not specifically recited in the claims and / or specifically disclosed in the specification. While each dependent claim listed below may directly depend on only one claim, the disclosure of an aspect includes a combination of each dependent claim with every other claim in the claim set. As used herein, the phrase “at least one of” in the list of items refers to any combination of those 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 with multiples of the same element (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).

[0165] None of the elements, actions, or instructions used herein should be construed as critical or necessary 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.” Furthermore, as used herein, the article “the” is intended to include one or more items referenced in combination with the article “the” and may 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, unrelated items, or a combination of related and unrelated items) and may be used interchangeably with “one or more.” Where only one item is anticipated, the phrase “only one” or similar language is used. Furthermore, as used herein, the terms “has,” “have,” “having,” etc., are intended to be open-ended terms. Furthermore, unless explicitly stated otherwise, the phrase “based on” is intended to mean “at least partially based on.” Furthermore, as used herein, the term “or” is intended to be inclusive when used in a series, and may be used interchangeably with “and / or” unless otherwise expressly stated (e.g., if used in conjunction with “any” or “only one of”).

Claims

1. A method for wireless communication performed by a user equipment (UE), comprising: Receive from a network entity an SSB associated with a Synchronization Signal Block (SSB) configuration for an operating band having a maximum bandwidth narrower than the minimum SSB bandwidth for an access link, wherein the SSB includes one or more punched edges such that the SSB includes a set of Resource Blocks (RBs) only within the maximum bandwidth of the operating band, and wherein the set of RBs in the frequency region carries a secondary synchronization signal and a physical broadcast channel demodulation reference signal that have been power-up to have equivalent per-resource-element energy; and The SSB is decoded at least in part based on the SSB configuration.

2. The method according to claim 1, wherein, A portion of the bits transmitted in the physical broadcast channel of the SSB is predefined.

3. The method according to claim 1, wherein, Decoding the SSB includes: Avoid using the physical broadcast channel demodulation reference signal in the one or more punched edges to perform channel estimation; and Decoding is performed only on the set of RBs in the frequency region of the SSB that is within the maximum bandwidth of the operating frequency band.

4. The method according to claim 1, wherein, Decoding the SSB includes: The one or more punched edges are determined based at least in part on the configuration associated with the operating frequency band or at least in part on blind detection of a sequence of pseudo-noise associated with a physical broadcast channel in the frequency region of the SSB within the maximum bandwidth of the operating frequency band.

5. The method according to claim 1, wherein, The SSB includes a symbol to carry one or more Physical Broadcast Channel (PBCH) resource blocks (RBs) located outside the frequency region of the SSB within the maximum bandwidth of the operating frequency band.

6. The method according to claim 5, wherein, The SSB configuration includes a resource element mapping for the symbols to carry the one or more PBCH RBs.

7. The method according to claim 1, wherein, The SSB includes a first set of resource blocks (RBs) and a second set of RBs. The first set of RBs is transmitted only in the upper frequency region within the maximum bandwidth of the operating frequency band during a first SSB event, and the second set of RBs is transmitted only in the lower frequency region within the maximum bandwidth of the operating frequency band during a second SSB event.

8. The method according to claim 7, wherein, Decoding the SSB includes: The first portion of the Physical Broadcast Channel (PBCH) carried in the upper frequency region during the first SSB timing is combined with the second portion of the PBCH carried in the lower frequency region during the second SSB timing.

9. The method according to claim 1, wherein, The SSB configuration is at least in part based on a side link SSB configuration that requires a minimum bandwidth that is narrower than the maximum bandwidth of the operating band.

10. The method according to claim 9, wherein, The SSB configuration includes an initial symbol group carrying a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), and the SSB configuration also includes a final symbol carrying repeated PSS symbols, repeated SSS symbols, repeated PBCH symbols, or downlink transmission symbols.

11. A method for wireless communication performed by a network entity, comprising: Determine the Synchronization Signal Block (SSB) configuration for the operating band associated with the network entity, wherein the operating band has a maximum bandwidth narrower than the minimum SSB bandwidth for the access link; and The SSB is transmitted at least in part based on the SSB configuration, wherein the SSB includes one or more punched edges such that the SSB includes a set of resource blocks (RBs) in a frequency region that is only within the maximum bandwidth of the operating frequency band, and wherein the set of RBs in the frequency region carries a secondary synchronization signal and a physical broadcast channel demodulation reference signal that have been power-up to have equivalent energy per resource element.

12. The method according to claim 11, wherein, A portion of the bits transmitted in the physical broadcast channel of the SSB is predefined.

13. The method according to claim 11, wherein, The SSB includes a sequence of pseudo-noise associated with a physical broadcast channel in the frequency region of the SSB, which is located within the maximum bandwidth of the operating frequency band.

14. The method according to claim 11, wherein, The SSB includes a symbol to carry one or more Physical Broadcast Channel (PBCH) resource blocks (RBs) located outside the frequency region of the SSB within the maximum bandwidth of the operating frequency band.

15. The method according to claim 14, wherein, The SSB configuration includes a resource element mapping for the symbols to carry the one or more PBCH RBs.

16. The method according to claim 11, wherein, The SSB includes a first set of resource blocks (RBs) and a second set of RBs. The first set of RBs is transmitted only in the upper frequency region within the maximum bandwidth of the operating frequency band during a first SSB event, and the second set of RBs is transmitted only in the lower frequency region within the maximum bandwidth of the operating frequency band during a second SSB event.

17. The method according to claim 11, wherein, The SSB configuration is at least in part based on a side link SSB configuration that requires a minimum bandwidth that is narrower than the maximum bandwidth of the operating band.

18. The method according to claim 17, wherein, The SSB configuration includes an initial symbol group carrying a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), and the SSB configuration also includes a final symbol carrying repeated PSS symbols, repeated SSS symbols, repeated PBCH symbols, or downlink transmission symbols.

19. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors are operatively coupled to the memory, and the memory and the one or more processors are configured to: Receive from a network entity an SSB associated with a Synchronization Signal Block (SSB) configuration for an operating band having a maximum bandwidth narrower than the minimum SSB bandwidth for an access link, wherein the SSB includes one or more punched edges such that the SSB includes a set of Resource Blocks (RBs) only within the maximum bandwidth of the operating band, and wherein the set of RBs in the frequency region carries a secondary synchronization signal and a physical broadcast channel demodulation reference signal that have been power-up to have equivalent per-resource-element energy; and The SSB is decoded at least in part based on the SSB configuration.

20. The UE according to claim 19, wherein, A portion of the bits transmitted in the physical broadcast channel of the SSB is predefined.

21. The UE according to claim 19, wherein, In order to decode the SSB, the memory and the one or more processors are configured as follows: Avoid using the physical broadcast channel demodulation reference signal in the one or more punched edges to perform channel estimation; as well as Decoding is performed only on the set of RBs in the frequency region of the SSB that is within the maximum bandwidth of the operating frequency band.

22. The UE according to claim 19, wherein, In order to decode the SSB, the memory and the one or more processors are configured as follows: The one or more punched edges are determined based at least in part on the configuration associated with the operating frequency band or at least in part on blind detection of a sequence of pseudo-noise associated with a physical broadcast channel in the frequency region of the SSB within the maximum bandwidth of the operating frequency band.

23. The UE according to claim 19, wherein, The SSB includes a symbol to carry one or more Physical Broadcast Channel (PBCH) resource blocks (RBs) located outside the frequency region of the SSB within the maximum bandwidth of the operating frequency band.

24. The UE according to claim 23, wherein, The SSB configuration includes a resource element mapping for the symbols to carry the one or more PBCH RBs.

25. The UE according to claim 19, wherein, The SSB includes a first set of resource blocks (RBs) and a second set of RBs. The first set of RBs is transmitted only in the upper frequency region within the maximum bandwidth of the operating frequency band during a first SSB event, and the second set of RBs is transmitted only in the lower frequency region within the maximum bandwidth of the operating frequency band during a second SSB event.

26. The UE according to claim 25, wherein, In order to decode the SSB, the memory and the one or more processors are configured as follows: The first portion of the Physical Broadcast Channel (PBCH) carried in the upper frequency region during the first SSB timing is combined with the second portion of the PBCH carried in the lower frequency region during the second SSB timing.

27. The UE according to claim 19, wherein, The SSB configuration is at least in part based on a side link SSB configuration that requires a minimum bandwidth that is narrower than the maximum bandwidth of the operating band.

28. The UE according to claim 27, wherein, The SSB configuration includes an initial symbol group carrying a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), and the SSB configuration also includes a final symbol carrying repeated PSS symbols, repeated SSS symbols, repeated PBCH symbols, or downlink transmission symbols.

29. A network entity for wireless communication, comprising: Memory; as well as One or more processors are operatively coupled to the memory, and the memory and the one or more processors are configured to: Determine the Synchronization Signal Block (SSB) configuration for the operating band associated with the network entity, wherein the operating band has a maximum bandwidth narrower than the minimum SSB bandwidth for the access link; and The SSB is transmitted at least in part based on the SSB configuration, wherein the SSB includes one or more punched edges such that the SSB includes a set of resource blocks (RBs) in a frequency region that is only within the maximum bandwidth of the operating frequency band, and wherein the set of RBs in the frequency region carries a secondary synchronization signal and a physical broadcast channel demodulation reference signal that have been power-up to have equivalent energy per resource element.

30. The network entity according to claim 29, wherein, A portion of the bits transmitted in the physical broadcast channel of the SSB is predefined.

31. The network entity according to claim 29, wherein, The SSB includes a sequence of pseudo-noise associated with a physical broadcast channel in the frequency region of the SSB, which is located within the maximum bandwidth of the operating frequency band.

32. The network entity according to claim 29, wherein, The SSB includes a symbol to carry one or more Physical Broadcast Channel (PBCH) resource blocks (RBs) located outside the frequency region of the SSB within the maximum bandwidth of the operating frequency band.

33. The network entity according to claim 32, wherein, The SSB configuration includes a resource element mapping for the symbols to carry the one or more PBCH RBs.

34. The network entity according to claim 29, wherein, The SSB includes a first set of resource blocks (RBs) and a second set of RBs. The first set of RBs is transmitted only in the upper frequency region within the maximum bandwidth of the operating frequency band during a first SSB event, and the second set of RBs is transmitted only in the lower frequency region within the maximum bandwidth of the operating frequency band during a second SSB event.

35. The network entity according to claim 29, wherein, The SSB configuration is at least in part based on a side link SSB configuration that requires a minimum bandwidth that is narrower than the maximum bandwidth of the operating band.

36. The network entity according to claim 35, wherein, The SSB configuration includes an initial symbol group carrying a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), and the SSB configuration also includes a final symbol carrying repeated PSS symbols, repeated SSS symbols, repeated PBCH symbols, or downlink transmission symbols.

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