Techniques and apparatus for synchronization signal scanning based at least partially on a synchronization raster

Abstract

To provide techniques and apparatuses for a synchronization signal scanning.SOLUTION: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user device may identify that a band is associated with a first numerology and a second numerology for synchronization, and / or perform a synchronization scan to identify a synchronization signal block using stored data, wherein the stored data includes data regarding a plurality of frequency locations of the band, and wherein the synchronization scan is performed with regard to a first set of frequency locations, of the plurality of frequency locations, associated with the first numerology, and wherein the synchronization scan is performed with regard to a second set of frequency locations, of the plurality of frequency locations, associated with the second numerology, wherein the second set of frequency locations includes a proper subset of frequency locations of the plurality of frequency locations. Numerous other aspects are provided.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] Cross - reference to Related Applications under 35 U.S.C. § 119 This application claims priority to U.S. Provisional Patent Application No. 62 / 556,077, filed Sep. 8, 2017, and U.S. Non - Provisional Patent Application No. 16 / 123,784, filed Sep. 6, 2018, both entitled "TECHNIQUES AND APPARATUSES FOR SYNCHRONIZATION SIGNAL SCANNING BASED AT LEAST IN PART ON A SYNCHRONIZATION RASTER", which are hereby incorporated by reference in their entirety.

[0002] Aspects of the present disclosure generally relate to wireless communication, and more particularly, to techniques and apparatuses for synchronization signal scanning based at least in part on a synchronization raster.

Background Art

[0003] Wireless communication systems are widely deployed to provide a variety of telecommunications services, including telephony, video, data, messaging, and broadcast. Typical wireless communication systems can 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 / LTE Advanced is a set of extensions to the Universal Mobile Telecommunications System (UMTS) mobile standard published by the Third Generation Partnership Project (3GPP®).

[0004] A wireless communication network may include several base stations (BS) that can support communication for several user equipment (UEs). User equipment (UEs) can communicate with base stations (BS) via downlink and uplink. Downlink (or forward link) refers to the communication link from the BS to the UE, and uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, BS may also be called node B, gNB, access point (AP), radio head, transmit / receive point (TRP), New Radio (NR) BS, 5G node B, etc.

[0005] The multiple access technologies described above are employed in various telecommunications standards to provide a common protocol that enables different user devices to communicate across cities, nations, regions, and even globally. New Radio (NR), sometimes called 5G, is a set of extensions to the LTE mobile standard published by the Third Generation Partnership Project (3GPP®). NR is designed to better support mobile broadband internet access by improving spectral efficiency, lowering costs, improving service, utilizing new spectra, using orthogonal frequency division multiplexing (OFDM) with cyclic prefixes (CP) (CP-OFDM) on the downlink (DL) and CP-OFDM and / or SC-FDM (also known as, for example, discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), as well as by better integrating with other open standards that support beamforming, multiple input multiple output (MIMO) antenna technology, and carrier aggregation. However, as the demand for mobile broadband access continues to increase, further improvements in LTE and NR technologies are needed. Preferably, these improvements should be applicable to other multiple access technologies and telecommunications standards that utilize these technologies. [Overview of the project] [Means for solving the problem]

[0006] In some embodiments, a method for wireless communication performed by user equipment may include the steps of: identifying that a band is associated with a first numerology and a second numerology for synchronization; and performing a synchronization scan to find a synchronization signal block using stored data, wherein the stored data includes data relating to a plurality of frequency locations of the band, the synchronization scan is performed with respect to a first set of frequency locations among the plurality of frequency locations associated with the first numerology, and the synchronization scan is performed with respect to a second set of frequency locations among the plurality of frequency locations associated with the second numerology, wherein the second set of frequency locations includes a unique subset of frequency locations among the plurality of frequency locations.

[0007] In some embodiments, user equipment for wireless communication may include memory and one or more processors operably coupled to the memory. The memory and one or more processors may be configured to identify that a band is associated with a first numerology and a second numerology for synchronization, and to perform a synchronization scan to find a synchronization signal block using stored data, wherein the stored data includes data relating to a plurality of frequency locations of the band, the synchronization scan is performed with respect to a first set of frequency locations of the plurality of frequency locations associated with the first numerology, and the synchronization scan is performed with respect to a second set of frequency locations of the plurality of frequency locations associated with the second numerology, wherein the second set of frequency locations includes a unique subset of frequency locations of the plurality of frequency locations.

[0008] In some embodiments, a non-temporary computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of a user device, one or more instructions may cause one or more processors to: identify that a band is associated with a first numerology and a second numerology for synchronization; and perform a synchronization scan to find a synchronization signal block using stored data, wherein the stored data includes data relating to a plurality of frequency locations of the band, the synchronization scan is performed with respect to a first set of frequency locations among the plurality of frequency locations associated with the first numerology, and the synchronization scan is performed with respect to a second set of frequency locations among the plurality of frequency locations associated with the second numerology, wherein the second set of frequency locations includes a unique subset of frequency locations among the plurality of frequency locations.

[0009] In some embodiments, an apparatus for wireless communication may include means for identifying that a band is associated with a first numerology and a second numerology for synchronization, and means for performing a synchronization scan to detect a synchronization signal block using stored data, wherein the stored data includes data relating to a plurality of frequency locations of the band, the synchronization scan is performed with respect to a first set of frequency locations among the plurality of frequency locations associated with the first numerology, and the synchronization scan is performed with respect to a second set of frequency locations among the plurality of frequency locations associated with the second numerology, wherein the second set of frequency locations includes a unique subset of frequency locations among the plurality of frequency locations.

[0010] Embodiments are generally described in detail herein with reference to the accompanying drawings and include methods, apparatus, systems, computer program products, non-temporary computer-readable media, user equipment, wireless communication devices, and processing systems as shown in the accompanying drawings and herein.

[0011] The above provides a fairly broad overview of the features and technical advantages of the examples provided in this disclosure, so that the following detailed explanation may be better understood. Additional features and advantages are described below. The concepts and examples disclosed may readily be used as a basis for modifying or designing other structures to accomplish the same objectives of this disclosure. Such equivalent configurations will not deviate from the scope of the appended claims. The characteristics of the concepts disclosed herein, both their organization and how they operate, along with their relevant advantages, will be better understood from the following explanation when considered in relation to the appended figures. Each of the figures is provided for illustrative and explanatory purposes and is not provided as a definition of the limitation of the claims.

[0012] To allow for a more detailed understanding of the features of this disclosure described above, more specific explanations of the concisely summarized above may be provided by reference to embodiments partially shown in the accompanying drawings. However, it should be noted that these explanations may apply to other equally effective embodiments, and therefore the accompanying drawings should not be considered to represent only some typical embodiments of this disclosure and thus limit the scope of this disclosure. The same reference numerals in different drawings may identify the same or similar elements. [Brief explanation of the drawing]

[0013] [Figure 1] This is a block diagram conceptually illustrating an example of a wireless communication network according to various aspects of this disclosure. [Figure 2] This is a block diagram conceptually illustrating an example of a base station communicating with a user equipment (UE) in a wireless communication network, according to various aspects of this disclosure. [Figure 3A] This is a block diagram conceptually illustrating an example of a frame structure in a wireless communication network according to various aspects of this disclosure. [Figure 3B] This is a block diagram conceptually illustrating exemplary synchronous communication layers in a wireless communication network according to various aspects of the present disclosure. [Figure 4] This is a block diagram conceptually illustrating exemplary slot formats having a normal cyclic prefix according to various aspects of the present disclosure. [Figure 5] This figure shows an example of performing a synchronization scan based at least partially on a synchronization signal location table that identifies a single numerology for each frequency location, according to various aspects of the present disclosure. [Figure 6] This figure shows an exemplary process performed, for example, by user equipment, according to various aspects of this disclosure. [Modes for carrying out the invention]

[0014] Various aspects of this disclosure will be 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 being limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure is thorough and complete and so as to convey the scope of this disclosure to those skilled in the art. Based on the teachings of this specification, those skilled in the art should understand that the scope of this disclosure encompasses any aspect of the disclosure disclosed herein, whether implemented independently of any other aspect of the disclosure or in combination with any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of aspects described herein. In addition, the scope of this disclosure shall encompass, in addition to or in addition to the various aspects of the disclosure described herein, any other structure, function, or such apparatus or method practiced using other structures and functions. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims.

[0015] Next, several embodiments of telecommunications systems are presented with reference to various devices and techniques. These devices and techniques are described in the following detailed explanation and are illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as “elements”). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0016] While aspects may be described herein using terms commonly associated with 3G and / or 4G wireless technologies, it should be noted that aspects of this disclosure may also apply to other generation-based communication systems, such as 5G and beyond, including NR technologies.

[0017] Figure 1 shows a network 100 in which embodiments of this disclosure may be put into practice. Network 100 may be an LTE network or any other wireless network such as a 5G or NR network. Wireless network 100 may include several BS110s (indicated as BS110a, BS110b, BS110c, and BS110d) and other network entities. A BS is an entity that communicates with user equipment (UE) and may also be called a base station, NR BS, node B, gNB, 5G node B (NB), access point, transmit / receive point (TRP), etc. Each BS may provide communication coverage to a specific geographic area. In 3GPP®, the term “cell” may, depending on the context in which the term is used, refer to the coverage area of ​​a BS and / or a BS subsystem that serves that coverage area.

[0018] A BS can provide communication coverage to macrocells, picocells, femtocells, and / or other types of cells. A macrocell can cover a relatively large geographical area (e.g., a radius of several kilometers) and may enable unrestricted access by UEs subscribing to the service. A picocell can cover a relatively small geographical area and may enable unrestricted access by UEs subscribing to the service. A femtocell can cover a relatively small geographical area (e.g., a home) and may enable limited access by UEs associated with a femtocell (e.g., UEs within a Limited Subscriber Group (CSG)). A BS for a macrocell is sometimes called a macroBS. A BS for a picocell is sometimes called a picoBS. A BS for a femtocell is sometimes called a femtoBS or homeBS. In the example shown in Figure 1, BS110a may be a macroBS for macrocell 102a, BS110b may be a picoBS for picocell 102b, and BS110c may be a femtoBS for femtocell 102c. A BS may support one or more (for example, three) cells. The terms “eNB”, “base station”, “NR BS”, “gNB”, “TRP”, “AP”, “Node B”, “5G NB”, and “cell” may be used interchangeably herein.

[0019] In some examples, cells may not necessarily be fixed, and the geographical area of ​​a cell may move according to the location of the mobile BS. In some examples, BSs may be interconnected within the access network 100 and / or one or more other BSs or network nodes (not shown) through various types of backhaul interfaces, such as direct physical connections or virtual networks, using any suitable transport network.

[0020] Wireless network 100 may also include relay stations. A relay station is an entity that can receive the transmission of data from an upstream station (e.g., a BS or a UE) and send the transmission of data to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. In the example shown in FIG. 1, relay station 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. Relay stations may also be referred to as relay BSs, relay base stations, relays, etc.

[0021] Wireless network 100 may be a heterogeneous network including different types of BSs, such as macro BSs, pico BSs, femto BSs, relay BSs, etc. These different types of BSs may have different transmission power levels, different coverage areas, and different impacts on interference in wireless network 100. For example, a macro BS may have a high transmission power level (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs may have a lower transmission power level (e.g., 0.1 to 2 watts).

[0022] Network controller 130 may be coupled to a set of BSs and may perform coordination and control for these BSs. Network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly, for example, via a wireless or wireline backhaul.

[0023] UE120 (for example, 120a, 120b, 120c) may be distributed across the entire wireless network 100, and each UE may be fixed or mobile. UEs may also be called access terminals, terminals, mobile stations, subscriber units, stations, etc. UEs may be cellular phones (e.g., smartphones), personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, laptop computers, cordless phones, wireless local loop (WLL) stations, tablets, cameras, gaming devices, netbooks, smartbooks, ultrabooks, medical devices or equipment, biosensors / devices, wearable devices (smartwatches, smart clothing, smart glasses, smart wristbands, smart jewelry (e.g., smart rings, smart bracelets)), entertainment devices (e.g., music or video devices, or satellite radios), vehicle components or sensors, smart meters / sensors, industrial manufacturing equipment, global positioning system devices, or any other suitable device configured to communicate wirelessly or via a wired medium.

[0024] Some UEs may be considered machine-type communications (MTC) UEs or advanced or enhanced machine-type communications (eMTC) UEs. MTC UEs and eMTC UEs include, for example, robots, drones, sensors, meters, monitors, location tags, and other remote devices that can communicate with base stations, other devices (e.g., remote devices), or any other entities. Wireless nodes may provide, for example, connectivity to a network (e.g., the Internet or a wide area network such as a cellular network) via wired or wireless communication links. Some UEs may be considered Internet of Things (IoT) devices and / or implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE120 may be contained within a housing that accommodates the components of UE120, such as processor components and memory components.

[0025] In general, any number of wireless networks may be deployed in a given geographical area. Each wireless network may support a specific RAT and operate on one or more frequencies. RATs are sometimes called wireless technologies or air interfaces. Frequencies are sometimes called carriers or frequency channels. Each frequency may support a single RAT in a given geographical area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0026] In some examples, access to an air interface may be scheduled, and a scheduling entity (e.g., a base station) allocates resources for communication between some or all devices and equipment within the scheduling entity's service area or cell. Within this disclosure, as further described below, a scheduling entity may be responsible for scheduling, allocating, reconfiguring, and releasing resources for one or more dependent entities. That is, for scheduled communication, the dependent entities utilize the resources allocated by the scheduling entity.

[0027] A base station is not the only entity that can function as a scheduling entity. That is, in some examples, a UE can function as a scheduling entity, scheduling resources for one or more dependent entities (e.g., one or more other UEs). In this example, the UE functions as a scheduling entity, and other UEs utilize the resources scheduled by the UE for wireless communication. UEs can function as scheduling entities in peer-to-peer (P2P) networks and / or mesh networks. In the mesh network example, UEs may optionally communicate directly with each other in addition to communicating with scheduling entities.

[0028] Therefore, in wireless communication networks having cellular, P2P, and mesh configurations, with scheduled access to time-frequency resources, scheduling entities and one or more dependent entities can communicate using the scheduled resources.

[0029] As shown above, Figure 1 is given merely as an example. Other examples are possible and may differ from what has been explained with respect to Figure 1.

[0030] Figure 2 shows a block diagram of design 200 of BS110 and UE120, which may be one of the base stations and one of the UEs in Figure 1. BS110 may have T antennas 234a to 234t, and UE120 may have R antennas 252a to 252r, where generally T≧1 and R≧1.

[0031] In BS110, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE at least in part based on the channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for each UE at least in part based on the MCS selected for the UE, and provide data symbols to all UEs. The transmit processor 220 may also process system information and control information (e.g., CQI requests, grants, upper-layer signaling, etc.) (e.g., semi-static resource partitioning information (SRPI), etc.) and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may, where applicable, perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, and may provide T output symbol streams to T modulators (MODs) 232a-232t. Each modulator 232 may process its respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may further process the output sample stream (e.g., convert to analog, amplify, filter, and upconvert) to obtain a downlink signal. The T downlink signals from modulators 232a-232t may each be transmitted via T antennas 234a-234t. According to some embodiments described in more detail below, a synchronization signal may be generated using location coding to convey additional information.

[0032] In UE120, antennas 252a-252r may receive downlink signals from BS110 and / or other base stations, and each may provide the received signal to demodulators (DEMOD) 254a-254r. Each demodulator 254 may adjust the received signal (e.g., filter, amplify, downconvert, and digitize) to obtain an input sample. Each demodulator 254 may further process the input sample (e.g., for OFDM) to obtain a received symbol. A MIMO detector 256 may obtain received symbols from all R demodulators 254a-254r, perform MIMO detection on the received symbols where applicable, and provide the detected symbols. A receiving processor 258 may process the detected symbols (e.g., demodulate and decode) and provide the decoded data for UE120 to the data sink 260 and the decoded control and system information to the controller / processor 280. The channel processor may determine the reference signal received power (RSRP), the received signal strength indicator (RSSI), the reference signal received quality (RSRQ), the channel quality indicator (CQI), and so on.

[0033] On the uplink, in UE120, the transmitting processor 264 may receive and process data from data source 262 and control information (for reporting, including RSRP, RSSI, RSRQ, CQI, etc.) from controller / processor 280. The transmitting processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmitting processor 264 may, if applicable, be precoded by TX MIMO processor 266, further processed by modulators 254a-254r (for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to BS110. In BS110, uplink signals from UE120 and other UEs may be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236, and further processed by receiving processor 238 to obtain the decoded data and control information sent by UE120. The receiving processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The BS110 includes a communication unit 244 and can communicate with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and memory 292.

[0034] In some embodiments, one or more components of UE120 may be contained within a housing. Controllers / processors 240 and 280 and / or any other components in Figure 2 may direct operations in BS110 and UE120, respectively, to perform a sync scan based at least partially on a sync signal location table that identifies frequency locations for sync signal blocks of multiple numerologies. For example, controllers / processors 280 and / or other processors and modules in UE120 may perform or direct operations in UE120 to perform a sync scan based at least partially on a sync signal location table that identifies frequency locations for sync signal blocks of multiple numerologies. For example, controllers / processors 280 and / or other controllers / processors and modules in UE120 may perform or direct operations in process 600 in Figure 6 and / or other processes as described herein. In some embodiments, one or more components shown in Figure 2 may be used to perform exemplary process 600 and / or other processes for the techniques described herein. Memories 242 and 282 may store data and program code for BS110 and UE120, respectively. Scheduler 246 may schedule the UE for data transmission on the downlink and / or uplink.

[0035] In some embodiments, the UE120 may include means for identifying that the bandwidth is associated with a first numerology and a second numerology for synchronization, means for performing a synchronization scan to find a synchronization signal block using stored data, and so on. In some embodiments, such means may include one or more components of the UE120 described with respect to Figure 2.

[0036] As shown above, Figure 2 is given merely as an example. Other examples are possible and may differ from what has been explained with respect to Figure 2.

[0037] Figure 3A shows an exemplary frame structure 300 for frequency division duplexing (FDD) in a telecommunications system (e.g., NR). The transmission timeline for the downlink and uplink, respectively, may be divided into units of radio frames (sometimes called frames). Each radio frame may have a predetermined duration (e.g., 10 milliseconds (ms)) and may be divided into a set of Z subframes (Z≧1) (e.g., with indices 0 to Z-1). Each subframe may have a predetermined duration (e.g., 1 ms) and may be divided into a set of slots (e.g., 2 per subframe). m The number of slots shown in Figure 3A may include m (a numerology used for transmission, such as 0, 1, 2, 3, 4, etc.). Each slot may contain a set of L symbol periods. For example, each slot may contain 14 symbol periods, 7 symbol periods, or another number of symbol periods (as shown, for example, in Figure 3A). If a subframe contains two slots (for example, when m=1), the subframe may contain 2L symbol periods, where the 2L symbol periods in each subframe may be assigned an index from 0 to 2L-1. In some embodiments, the scheduling unit for the FDD may be frame-based, subframe-based, slot-based, symbol-based, etc.

[0038] Several techniques are described herein in relation to frames, subframes, slots, etc., but these techniques may also be equally applicable to other types of wireless communication structures that may be referred to using terms other than "frame," "subframe," and "slot" in 5G NR. In some embodiments, the wireless communication structure may refer to a periodic time-limited communication unit defined by the wireless communication standard and / or protocol. Additional or alternative configurations of wireless communication structures different from those shown in Figure 3A may be used.

[0039] In some telecommunications (e.g., NR), base stations may transmit synchronization signals. For example, a base station may transmit a primary synchronization signal (PSS), a secondary synchronization signal (SSS), etc., on the downlink for each cell supported by the base station. The PSS and SSS may be used by the UE for cell discovery and acquisition. For example, the PSS may be used by the UE to determine symbol timing, and the SSS may be used by the UE to determine the physical cell identifier and frame timing associated with the base station. The base station may also transmit a physical broadcast channel (PBCH). The PBCH may carry some system information, such as system information to support initial access by the UE.

[0040] In some embodiments, the base station may transmit PSS, SSS, and / or PBCH according to a synchronous communication hierarchy (e.g., a synchronous signal (SS) hierarchy) that includes multiple synchronous communications (e.g., SS blocks), as described below with respect to Figure 3B.

[0041] Figure 3B is a block diagram conceptually illustrating an exemplary SS layer, which is an example of a synchronous communication layer. As shown in Figure 3B, the SS layer may include SS burst sets, which may include multiple SS bursts (identified as SS burst 0 to SS burst B-1, where B is the maximum number of SS burst repetitions that can be transmitted by the base station). Furthermore, as shown, each SS burst may include one or more SS blocks (SS block 0 to SS block (b max_SS-1 ) is identified as, here, b max_SS-1 This may include the maximum number of SS blocks that can be carried by the SS burst. In some embodiments, different SS blocks may be beamformed in different ways. The SS burst set may be transmitted periodically by the wireless node, such as every X milliseconds, as shown in Figure 3B. In some embodiments, the SS burst set may have a fixed or dynamic length, shown as Y milliseconds in Figure 3B.

[0042] The SS burst set shown in Figure 3B is an example of a synchronous communication set, and other synchronous communication sets may be used for the techniques described herein. Furthermore, the SS block shown in Figure 3B is an example of synchronous communication, and other synchronous communication may be used for the techniques described herein.

[0043] In some embodiments, an SS block includes resources that carry PSS, SSS, PBCH, and / or other synchronization signals (e.g., third-order synchronization signal (TSS)) and / or synchronization channels. In some embodiments, multiple SS blocks are included in an SS burst, and the PSS, SSS, and / or PBCH may be the same across each SS block in the SS burst. In some embodiments, a single SS block may be included in an SS burst. In some embodiments, an SS block may be of a length of at least four symbol periods, where each symbol carries one or more of the PSS (e.g., occupying one symbol), SSS (e.g., occupying one symbol), and / or PBCH (e.g., occupying two symbols).

[0044] In some embodiments, the symbols of an SS block are continuous, as shown in Figure 3B. In some embodiments, the symbols of an SS block are non-continuous. Similarly, in some embodiments, one or more SS blocks of an SS burst may be transmitted over a continuous radio resource (e.g., a continuous symbol period) between one or more slots. As an addition or alternative, one or more SS blocks of an SS burst may be transmitted over a non-continuous radio resource.

[0045] In some embodiments, an SS burst may have a burst period, thereby transmitting the SS block of the SS burst by the base station according to the burst period. In other words, the SS block may be repeated between each SS burst. In some embodiments, an SS burst set may have a burst set period, thereby transmitting the SS burst of the SS burst set by the base station according to a fixed burst set period. In other words, the SS burst may be repeated between each SS burst set.

[0046] The base station may transmit system information, such as system information blocks (SIBs), over the physical downlink shared channel (PDSCH) in some slots. The base station may transmit control information / data over the physical downlink control channel (PDCCH) during C symbol periods of a slot, where C may be configurable per slot. The base station may transmit traffic data and / or other data over the PDSCH during the remaining symbol periods of each slot.

[0047] As shown above, Figures 3A and 3B are given as examples. Other examples are possible and may differ from what has been described with respect to Figures 3A and 3B.

[0048] Figure 4 shows an exemplary slot format 410 with a normal cyclic prefix. Available time-frequency resources can be divided into resource blocks. Each resource block can cover a set of subcarriers (e.g., 12 subcarriers) in one slot and may contain several resource elements. Each resource element can cover one subcarrier in one symbol period (e.g., in time) and may be used to transmit one modulation symbol, which may be a real or complex number.

[0049] Interlace structures may be used for each of the downlinks and uplinks for FDDs in some telecommunications systems (e.g., NR). For example, Q interlaces may be defined with indices from 0 to Q-1, where Q may be equal to 4, 6, 8, 10, or some other value. Each interlace may contain slots separated by Q frames. Specifically, interlace q may contain slots q, q+Q, q+2Q, etc., where q∈{0,...,Q-1}.

[0050] A UE may be located within the coverage of multiple broadcasting stations (BS). One of these BS may be selected to serve the UE. The serving BS may be selected based at least partially on various criteria such as received signal strength, received signal quality, and path loss. Received signal quality may be quantified by the signal-to-noise interference ratio (SINR), reference signal received quality (RSRQ), or some other metric. The UE may operate in a dominant interference scenario where the UE can observe high interference from one or more interfering BS.

[0051] While the embodiments of the examples described herein may be associated with NR or 5G technologies, embodiments of this disclosure may be applicable to other wireless communication systems. New Radio (NR) may refer to a radio configured to operate according to a new air interface (other than, for example, an orthogonal frequency division multiplexing (OFDMA)-based air interface) or a fixed transport layer (other than, for example, the Internet Protocol (IP)). In embodiments, NR may utilize OFDM with CP (referred herein as cyclic prefix OFDM or CP-OFDM) and / or SC-FDM on the uplink, and may utilize CP-OFDM on the downlink and include support for half-duplex operation using time-division duplex (TDD). In embodiments, NR may utilize OFDM with CP (referred herein as CP-OFDM) and / or Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) on the uplink, and may utilize CP-OFDM on the downlink and include support for half-duplex operation using TDD. NR may include mission-critical services such as extended mobile broadband (eMBB) services targeting wide bandwidths (e.g., above 80 megahertz (MHz)), millimeter wave (mmW) services targeting high carrier frequencies (e.g., 60 gigahertz (GHz)), massive MTC (mMTC) services targeting backward-incompatible MTC techniques, and / or ultra-high reliability low-latency communications (URLLC) services.

[0052] In some embodiments, a single component carrier bandwidth of 100 MHz may be supported. An NR resource block may span 12 subcarriers with subcarrier bandwidths of 60 or 120 kilohertz (kHz) over a duration of 0.1 milliseconds (ms). Each radio frame may contain 40 slots and have a length of 10 ms. Thus, each slot may have a length of 0.25 ms. Each slot may indicate the link direction of data transmission (e.g., DL or UL), and the link direction per slot may be dynamically switched. Each slot may contain DL / UL data and DL / UL control data.

[0053] Beamforming may be supported, and the beam direction may be dynamically configured. MIMO transmission with precoding may also be supported. MIMO configuration in DL may support up to eight transmitting antennas, along with multilayer DL transmission of up to eight streams and up to two streams per UE. Multilayer transmission with up to two streams per UE may be supported. Aggregation of multiple cells may be supported with up to eight serving cells. Alternatively, NR may support different air interfaces other than OFDM-based interfaces. NR networks may include entities such as central units or distributed units.

[0054] As shown above, Figure 4 is given as an example. Other examples are possible and may differ from what has been explained regarding Figure 4.

[0055] Synchronization signals (e.g., PSS, SSS, third-order synchronization signal (TSS), PBCH, synchronization signal block, etc.) may be transmitted at specific frequency locations defined by the synchronization raster. For example, in the bandwidth associated with frequency f, possible frequency locations for transmitting the synchronization signal may include f + Nd, where d is a value of the synchronization raster and N is an integer. Since channel bandwidth and synchronization signal numerology are variable in 5G-NR, synchronization rasters may be used in 5G-NR, which means that the 100 kHz channel raster used in LTE may not necessarily be ideal. The term "synchronization signal" may be used interchangeably with "synchronization signal block" and "SS / PBCH block" in this specification.

[0056] In 5G-NR, multiple numerologies may be supported for the synchronization signal. For example, a 15kHz and / or 30kHz subcarrier spacing may be supported for bands below 6GHz, and a 120kHz and / or 240kHz subcarrier spacing may be supported for bands above 6GHz. In some bands, multiple numerologies for the synchronization signal may be used. For example, one operator may use a 15kHz synchronization signal, while another operator may use a 30kHz synchronization signal.

[0057] When performing initial access, the UE may scan frequency locations until it identifies a synchronization signal. For example, the UE may explore possible frequency locations by assuming each possible numerology until a synchronization signal is identified. This can result in high cell search complexity and long initial access latency, as the UE must check multiple numerologies at each frequency location until a synchronization signal is identified.

[0058] The techniques and apparatus described herein can reduce the number of hypotheses or searches associated with identifying a synchronization signal for a band associated with multiple numerologies for the synchronization signal. For example, some of the techniques and apparatus described herein may use a table that identifies a single numerology for each potential frequency location to perform a synchronization scan for the initial access procedure. Some of the techniques and apparatus described herein may use a table that identifies the frequency locations for the synchronization signal of a band numerology and identifies a subset of possible frequency locations for one of the band numerologies. In this way, at a given frequency location, the UE may only need to check a single numerology for the synchronization signal, or a reduced number of numerologies. Thus, the complexity of the search for the initial access procedure is reduced. Furthermore, by using a table, the number of candidate frequency locations for a given numerology of the synchronization signal can be reduced, which reduces the latency associated with cell search and initial access.

[0059] Figure 5 shows an example 500 of performing a synchronous scan based at least partially on a synchronous signal location table that identifies frequency locations for each numerology of a band, according to various embodiments of the present disclosure. Figure 5 illustrates the operation performed with respect to bands that may include 4G-LTE bands, 5G-NR bands, bands of different radio access technologies, and / or combinations thereof. For the purposes of Figure 5, it is assumed that the bands are associated with two different numerologies, 15kHz and 30kHz. However, in some embodiments, the bands may be associated with any combination of different numerologies (e.g., 30kHz and 60kHz, 120kHz and 240kHz, etc.).

[0060] As shown in Figure 5 by reference no. 505, the UE120 may store a sync signal location table (referred to as the sync signal location table). The sync signal location table may contain data identifying multiple sets of frequency locations and the respective numerologies associated with each set of frequency locations. Here, the sync signal location table indicates that a set of odd frequency locations is associated with a 15 kHz numerology (e.g., the default numerology for the band). Furthermore, the sync signal location table indicates that a set of even frequency locations is associated with a 30 kHz numerology. For example, suppose the band is associated with a frequency of f. In this case, the odd frequency locations may include f+d, f+3d, f+5d, etc., where d is the sync raster for the band. Similarly, the even frequency locations may include f, f+2d, f+4d, etc. In some embodiments, the sync signal location table may identify a sync signal pattern (e.g., a sync signal block pattern) for scanning the sync signal for a particular numerology. For example, different numerologies may be associated with different synchronization signal patterns. The UE120 may scan synchronization signal blocks for a particular numerology according to the corresponding pattern. In some embodiments, the synchronization raster may be constructed according to the default numerology of the bandwidth, which will be described in more detail below.

[0061] Assigning a single numerology to each frequency location reduces the complexity of cell retrieval and initial access latency. For example, the UE120 may search for only a single numerology at each frequency location, rather than searching for all numerologies associated with the band at each frequency location, as will be explained in more detail below.

[0062] In some embodiments, the synchronization signal location table may identify multiple numerologies for a given frequency location. For example, the synchronization signal for a first numerology may use all frequency locations in the synchronization signal location table, while the synchronization signal for a second numerology may use a subset of frequency locations in the synchronization signal location table (e.g., every other frequency location, every two frequency locations, etc.). Thus, the number of hypotheses for the synchronization signal scan is reduced compared to using all frequency locations for both numerologies.

[0063] In some embodiments, the synchronization signal location table may relate to three or more different numerologies. Additionally or alternatively, the synchronization signal location table may not evenly divide frequency locations between two numerologies. For example, one numerology (e.g., default numerology, more commonly used numerology, higher priority numerology, etc.) may be associated with more frequency locations than another numerology (e.g., non-default numerology, less commonly used numerology, lower priority numerology, etc.). This can reduce the complexity of cell lookup and initial access latency for a single numerology while still providing frequency locations for the synchronization signals of other numerologies.

[0064] In some embodiments, the synchronization signal location table may be based at least partially on a synchronization frequency grid. The synchronization raster of the synchronization frequency grid may be based at least partially on a default synchronization numerology for a bandwidth, and the grid locations may be assigned to the default synchronization numerology by default. For example, the synchronization raster may be equal to the default synchronization numerology. In addition or alternatively, at least one synchronization frequency location on the grid may be used for another synchronization numerology. For example, at least one synchronization frequency location may not be used for the default synchronization numerology, or both synchronization numerologies may be used for at least one synchronization frequency location.

[0065] As shown by reference number 510, BS110 may be associated with a 30 kHz numerology for the synchronization signal provided by BS110. For example, a carrier or cell provided by BS110 may be associated with a 30 kHz numerology. Thus, as shown by reference number 515, a base station may provide a synchronization signal on even frequency locations. This is possible because even frequency locations in the band are designated for the 30 kHz synchronization signal numerology according to the synchronization signal location table in this example. In some embodiments, the synchronization signal location table may be known to UE120 and BS110. For example, the synchronization signal location table may be specified in a standard or specification.

[0066] As shown by reference number 520, UE120 may perform a synchronous scan in the band. For example, UE120 may perform a synchronous scan as part of the initial access procedure. When performing a synchronous scan, UE120 may not know the specific frequency locations to which the synchronous signal is transmitted. Therefore, UE120 may scan frequency locations according to a synchronous signal location table, at least partially based on the numerology associated with the band, as will be described in more detail below.

[0067] As shown by reference number 525, the UE120 may first scan odd frequency locations. For example, the UE120 may use a table to identify odd frequency locations based at least partially on the 15kHz numerology, which is the default numerology for the band. In some embodiments, the UE120 may perform the scan using patterns identified by the table for the 15kHz numerology. By scanning odd frequency locations first, the UE120 first completes the scan of frequency locations associated with the most likely numerology (e.g., the default numerology) before moving on to other numerologies. Of course, other orders for scanning frequency locations are possible. As shown by reference number 530, the UE120 determines that no synchronization signal is found at the odd frequency locations.

[0068] As shown by reference number 535, UE120 may scan even frequency locations (i.e., locations associated with 30kHz numerology) according to a table. For example, after exhausting odd frequency locations, UE120 may begin scanning even frequency locations. In some embodiments, UE120 may scan even frequency locations using patterns identified by the table for 30kHz numerology. In some embodiments, UE120 may not initially scan frequency locations associated with the default numerology. For example, UE120 may perform a sequential scan along the band (e.g., f, f+d, f+2d, f+3d, etc.). Even when performing such a sequential scan, a reduced number of numerologies are scanned, which may improve initial access latency compared to scanning every numerology at every frequency location.

[0069] As shown by reference number 540, UE120 may identify a synchronization signal while scanning even frequency locations. Thus, UE120 can perform initial access using the identified synchronization signal. In this way, the complexity of UE search is reduced. Furthermore, the number of frequency location candidates for a given numerology can be reduced, thereby achieving shorter cell search and initial access latency.

[0070] In some embodiments, the UE120 may perform a synchronous scan in non-standalone (NSA) mode. In NSA mode, the UE120 may perform a synchronous scan based at least partially on signaling from the BS110. For example, the signaling can identify the numerology of a synchronous signal to be transmitted in an NSA cell of the BS110 and to be detected by the UE120. In such a case, the UE120 may perform a synchronous scan based at least partially on the identified numerology. For example, the UE120 may determine a synchronous raster according to the identified numerology (for example, the synchronous raster may be equal to the identified numerology) and then search for bandwidth based at least partially on the synchronous raster. In this way, the BS110 can override the synchronous signal location table, which can provide increased flexibility for NSA cells having different synchronous numerologies.

[0071] As shown above, Figure 5 is given as an example. Other examples are possible and may differ from what has been explained regarding Figure 5.

[0072] Figure 6 shows an exemplary process 600 performed by, for example, a UE, according to various aspects of the present disclosure. The exemplary process 600 is an example in which user equipment (e.g., UE120) performs a synchronous scan based at least in part on a synchronous signal location table that identifies a single numerology for each frequency location.

[0073] As shown in Figure 6, in some embodiments, process 600 may include identifying bandwidths associated with a first numerology and a second numerology for synchronization (block 610). For example, user equipment may identify bandwidths associated with a first numerology and a second numerology for synchronization (e.g., for transmitting a synchronization signal block). In some embodiments, bandwidths may be associated with three or more numerologies. User equipment may identify bandwidths to perform a synchronization scan in the bandwidth based at least partially on stored data, as will be described in more detail below.

[0074] As shown in Figure 6, in some embodiments, process 600 may include performing a synchronous scan to detect a synchronous signal block using stored data, wherein the stored data includes data relating to multiple frequency locations in a band, the synchronous scan is performed with respect to a first set of frequency locations among multiple frequency locations associated with a first numerology, and the synchronous scan is performed with respect to a second set of frequency locations among multiple frequency locations associated with a second numerology, the second set of frequency locations includes a unique subset of frequency locations among multiple frequency locations (block 620). For example, user equipment may perform a synchronous scan using stored data. The stored data may include a synchronous signal location table, as described in more detail above. The stored data may include data relating to multiple frequency locations in a band, which can be divided into two or more sets of frequency locations. For example, each set of frequency locations may be associated with a single numerology. User equipment may perform a synchronous scan with respect to a first set of frequency locations associated with a first numerology and / or a second set of frequency locations associated with a second numerology. For example, the user device may first perform a synchronous scan with respect to a first numerology, and secondly perform a synchronous scan with respect to a second numerology.

[0075] Process 600 may include additional embodiments, such as any single embodiment or any combination of embodiments, as described below and / or elsewhere in this specification with respect to one or more other processes.

[0076] In some embodiments, the first set of frequency locations does not overlap with the second set of frequency locations. In some embodiments, the frequency locations in the first set of frequency locations alternate with the frequency locations in the second set of frequency locations. In some embodiments, the bands are associated with frequencies, and the first set of frequency locations is associated with either odd frequency offsets from a frequency or even frequency offsets from a frequency, while the second set of frequency locations is associated with either odd frequency offsets or even frequency offsets.

[0077] In some embodiments, the first and second numerologies are among a plurality of numerologies associated with a bandwidth, and the plurality of numerologies are associated with each non-overlapping set of frequency locations. In some embodiments, the synchronization signal block includes at least one of a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a tertiary synchronization signal (TSS), or a physical broadcast channel (PBCH).

[0078] In some embodiments, the stored data identifies multiple frequency locations and indicates the numerology associated with each of the multiple frequency locations. In some embodiments, the stored data identifies one numerology per frequency location. In some embodiments, a first set of frequency locations has a different number of frequency locations than a second set of frequency locations. In some embodiments, the frequency locations among the multiple frequency locations are determined according to a synchronous raster that identifies the intervals between the multiple frequency locations. In some embodiments, the user equipment is in non-standalone mode, and the frequency locations among the multiple frequency locations are determined according to a synchronous raster with respect to instructions received by the user equipment, where the instructions indicate that the synchronous raster should be used to determine the multiple frequency locations in non-standalone mode. In some embodiments, the stored data is shared between the user equipment and the network to which the user equipment is connected.

[0079] In some embodiments, a first set of frequency locations is associated with a first interval, and a second set of frequency locations is associated with a second interval different from the first interval. In some embodiments, the first set of frequency locations includes all frequency locations out of a plurality of frequency locations. In some embodiments, a synchronous scan is performed with respect to a first set of frequency locations using a first pattern, and a synchronous scan is performed with respect to a second set of frequency locations using a second pattern. In some embodiments, the first pattern corresponds to a first numerology, and the second pattern corresponds to a second numerology. In some embodiments, the first numerology is associated with a first subcarrier interval, and the second numerology is associated with a second subcarrier interval.

[0080] Figure 6 shows an exemplary block of process 600, but in some embodiments, process 600 may include additional blocks, fewer blocks, different blocks, or blocks arranged differently compared to those shown in Figure 6. Additionally or alternatively, two or more blocks of process 600 may be executed in parallel.

[0081] The above disclosures are illustrative and explanatory and are not exhaustive, nor do they limit the embodiments to the exact forms disclosed. Modified and adapted forms may be possible based on the above disclosures or may be derived from the practice of the embodiments.

[0082] The term "components" as used herein shall be broadly interpreted as hardware, firmware, or a combination of hardware and software. The processors used herein are implemented in hardware, firmware, or a combination of hardware and software.

[0083] In several aspects, thresholds will be described herein. As used herein, "meeting a threshold" may mean that a value is greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, or not equal to the threshold.

[0084] It will be apparent that the systems and / or methods described herein can be implemented in different forms of hardware, firmware, or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limiting to their embodiments. Therefore, the operation and behavior of the systems and / or methods have been described herein without reference to specific software code. It should be understood that software and hardware can be designed to implement the systems and / or methods based at least in part on the descriptions herein.

[0085] Even if specific combinations of features are enumerated in the claims and / or disclosed herein, these combinations do not limit the disclosure of possible embodiments. In practice, many of these features may be combined in ways not specifically enumerated in the claims and / or disclosed herein. Each dependent claim described below may depend directly on only one claim, but the disclosure of possible embodiments includes each dependent claim combined with any other claims in the claim set. The phrase “at least one of” the list of items refers to any combination of those items containing a single member. For example, “at least one of a, b, or c” shall include a, b, c, ab, ac, bc, and abc, as well as any combination having multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other order of a, b, and c).

[0086] None of the elements, actions, or commands used herein should be construed as important or essential unless expressly described as such. Furthermore, the articles “a” and “an” used herein should include one or more items and may be used interchangeably with “one or more.” Additionally, the terms “set” and “group” used herein should include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items) and may be used interchangeably with “one or more.” When only one item is intended, the term “one” or similar wording should be used. Furthermore, terms such as “has,” “have,” and “having” used herein should be open-ended terms. Additionally, the phrase “based on” should mean “at least partially based on” unless otherwise specified. [Explanation of Symbols]

[0087] 100 networks, wireless networks, access networks 102a Macrocell 102b picocell 102c femtocell 110 BS 110a BS, Macro BS 110b BS 110c BS 110d BS, relay station 120, 120a, 120c, 120d UE 130 Network Controllers 200 designs 212 data sources 220 Transmitting Processors 230 Transmit (TX) Multiple Input Multiple Output (MIMO) Processor, TX MIMO Processor 232 Modulator, demodulator, DEMOD, MOD 232a~232t Modulator (MOD), Modulator 234, 234a~234t antennas 236 MIMO detector 238 receiving processors 239 Data Sync 240 Controllers / Processors 242 memory 244 Communication Unit 246 Scheduler 252, 252a~252r antennas 254 Demodulator, DEMOD, MOD 254a~254r Demodulator, Modulator 256 MIMO detector 258 receiving processors 260 Data Sync 262 data sources 264 Transmitting Processors 266 TX MIMO processor 280 Controllers / Processors 282 memory 290 Controllers / Processors 292 memory 294 Communication Unit 300 frame structure 410 slot format 500 cases 600 processes

Claims

1. A device for wireless communication in a network entity, One or more memory units, The system comprises one or more processors coupled to one or more of the memory, wherein the one or more processors are connected to the network entity. Transmitting a synchronization signal to a user equipment (UE) performing a synchronization scan at one of several frequency locations of the band associated with a first numerology and a second numerology for synchronization, Some of the multiple frequency locations are indicated by a synchronization raster of the band showing the intervals between the multiple frequency locations. The first numerology is associated with a first set of frequency locations from among the plurality of frequency locations, and the first set of frequency locations is associated with either an odd frequency offset or an even frequency offset from a certain frequency. The network entity shares stored data with the UE that shows a first pattern of synchronous scans relating to the first set of frequency locations. The second numerology is associated with a second set of frequency locations from the plurality of frequency locations, and the second set of frequency locations is associated with the other of an odd frequency offset or an even frequency offset from the frequency. The stored data further transmits a second pattern of synchronous scanning relating to the second set of frequency locations. To communicate with the aforementioned UE and to perform the following: Device.

2. The one or more processors provide the network entity with The synchronous scan is further configured to cause the UE to send signaling to be performed based thereon. The apparatus according to claim 1.

3. The apparatus according to claim 2, wherein the signaling is transmitted by the network entity before the synchronization signal is transmitted by the network entity.

4. The apparatus according to claim 2, wherein the signaling indicates the numerology of the synchronization signal.

5. The apparatus according to claim 1, wherein the stored data is a table.

6. The apparatus according to claim 1, wherein the first set of frequency locations has a different amount of frequency locations than the second set of frequency locations.

7. The first set of frequency locations is associated with a first interval of frequency locations. The second set of frequency locations is associated with a second interval of frequency locations that is different from the first interval. The apparatus according to claim 1.

8. The first pattern is a first synchronization signal block pattern, The second pattern described above is a second synchronization signal block pattern. The apparatus according to claim 1.

9. The first numerology described above has a subcarrier interval of 120 kHz, The second numerology described above has a subcarrier spacing of 240 kHz. The apparatus according to claim 1.

10. The apparatus according to claim 1, wherein the first pattern and the second pattern are based on the intervals.

11. A method for wireless communication, The steps include: a network entity transmitting a synchronization signal to a user equipment (UE) performing a synchronization scan at one of several frequency locations of the band associated with a first numerology and a second numerology for synchronization; The step includes communicating with the UE by the aforementioned network entity, Some of the multiple frequency locations are indicated by a synchronization raster of the band showing the intervals between the multiple frequency locations. The first numerology is associated with a first set of frequency locations from among the plurality of frequency locations, and the first set of frequency locations is associated with either an odd frequency offset or an even frequency offset from a certain frequency. The network entity shares stored data with the UE that shows a first pattern of synchronous scans relating to the first set of frequency locations. The second numerology is associated with a second set of frequency locations from the plurality of frequency locations, and the second set of frequency locations is associated with the other of an odd frequency offset or an even frequency offset from the frequency. The stored data further indicates a second pattern of synchronous scanning with respect to the second set of frequency locations. method.

12. The synchronous scan includes the step of sending signaling to the UE that is performed thereon, The method according to claim 11.

13. The method according to claim 12, wherein the signaling is transmitted by the network entity before the synchronization signal is transmitted by the network entity.

14. The method according to claim 12, wherein the signaling indicates the numerology of the synchronization signal.

15. The method according to claim 11, wherein the stored data is a table.

16. The method according to claim 11, wherein the first set of frequency locations has a different amount of frequency locations than the second set of frequency locations.

17. The first set of frequency locations is associated with a first interval of frequency locations. The second set of frequency locations is associated with a second interval of frequency locations that is different from the first interval. The method according to claim 11.

18. The first pattern is a first synchronization signal block pattern, The second pattern described above is a second synchronization signal block pattern. The method according to claim 11.

19. The first numerology described above has a subcarrier interval of 120 kHz, The second numerology described above has a subcarrier spacing of 240 kHz. The method according to claim 11.

20. The method according to claim 11, wherein the first pattern and the second pattern are based on the intervals.

21. A non-temporary computer-readable storage medium for storing a set of instructions for wireless communication, wherein the set of instructions is: When executed by one or more processors of a network entity, the network entity will Transmitting a synchronization signal to a user equipment (UE) performing a synchronization scan at one of several frequency locations of the band associated with a first numerology and a second numerology for synchronization, Some of the multiple frequency locations are indicated by a synchronization raster of the band showing the intervals between the multiple frequency locations. The first numerology is associated with a first set of frequency locations from among the plurality of frequency locations, and the first set of frequency locations is associated with either an odd frequency offset or an even frequency offset from a certain frequency. The network entity shares stored data with the UE that shows a first pattern of synchronous scans relating to the first set of frequency locations. The second numerology is associated with a second set of frequency locations from the plurality of frequency locations, and the second set of frequency locations is associated with the other of an odd frequency offset or an even frequency offset from the frequency. The stored data further transmits a second pattern of synchronous scanning relating to the second set of frequency locations. To communicate with the aforementioned UE and to perform the following: A non-temporary computer-readable storage medium containing one or more instructions.

22. A device for wireless communication, Means for transmitting a synchronization signal to a user equipment (UE) performing a synchronization scan at one of multiple frequency locations of the band associated with a first numerology and a second numerology for synchronization, Includes means for communicating with the aforementioned UE, Some of the multiple frequency locations are indicated by a synchronization raster of the band showing the intervals between the multiple frequency locations. The first numerology is associated with a first set of frequency locations from among the plurality of frequency locations, and the first set of frequency locations is associated with either an odd frequency offset or an even frequency offset from a certain frequency. The device shares stored data with the UE that shows a first pattern of synchronous scans relating to the first set of frequency locations. The second numerology is associated with a second set of frequency locations from the plurality of frequency locations, and the second set of frequency locations is associated with the other of an odd frequency offset or an even frequency offset from the frequency. The stored data further indicates a second pattern of synchronous scanning with respect to the second set of frequency locations. Device.

23. The apparatus according to claim 22, wherein the first set of frequency locations has a different amount of frequency locations than the second set of frequency locations.

24. The first set of frequency locations is associated with a first interval of frequency locations. The second set of frequency locations is associated with a second interval of frequency locations that is different from the first interval. The apparatus according to claim 22.

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