MÉTODO EM UMA ESTAÇÃO BASE, ESTAÇÃO BASE, MÉTODO EM UM EQUIPAMENTO DE USUÁRIO E EQUIPAMENTO DE USUÁRIO

Abstract

A method, system, and device for obtaining a basic subcarrier spacing, or a channel bandwidth, or a maximum transmission bandwidth, or a set of usable subcarrier spacings through a predefined mapping rule are provided. In one embodiment, a method in a network component for determining a system numerology includes determining, by the network component, one or more subcarrier spacing options from a set of candidate subcarrier spacings that is associated with a carrier frequency band. The method also includes transmitting, by the network component, a signal indicating to one or more users one or more subcarrier spacing options from the set of candidate subcarrier spacings.

Description

1 / 41 METHOD AT A BASE STATION, BASE STATION, METHOD AT A USER DEVICE, AND USER DEVICE

[001] This application claims priority for U.S. Provisional Application Serial No. 62 / 467,937, filed March 7, 2017, U.S. Provisional Application Serial No. 62 / 458,958, filed February 14, 2017, and U.S. Application 15 / 729,228, filed October 10, 2017, which applications are incorporated herein by reference. TECHNICAL FIELD

[002] This disclosure refers to a numerology determination of a wireless communication system. BACKGROUND

[003] In conventional wireless networks, fixed numerologies have been employed to allow for ease of design. Numerology parameters are typically defined based on an understanding of the normal usage parameters of the network. In future networks, a more diverse set of needs must be met. Future networks may operate at a variety of different frequencies and serve a variety of different devices. Meeting the diverse requirements for future wireless networks, such as fifth-generation wireless (5G) networks, can be achieved using several approaches. In a first approach, which can be considered backward compatible with LTE, the sampling frequencies and subcarrier frequencies are selected as integer multiples of the sampling frequencies and subcarrier frequencies already established for LTE.In a second approach, which can be considered to have what is called future compatibility, the sampling frequencies and subcarrier frequencies are closely related to the sampling frequencies and subcarrier frequencies defined for LTE, but are non-integer multiples. For the first approach, backward compatibility with the LTE solution, there are two versions of the solutions based on the number of... Petition 870240098210, dated 11 / 18 / 2024, p. 17 / 108 2 / 41 symbols and cyclic prefix (CP) lengths in a subframe or transmission time slot. The first version solutions are strictly LTE compatible and involve the use of seven symbols or “7(1,6)” symbols in a subframe. The 7(1,6) notation represents a scheme with a first symbol length among the seven symbols and a second CP length for the other six symbols. For strict LTE compatibility, the two CP lengths and CP overhead in the 15 kHz base subcarrier spacing are arranged to be the same as the two CP lengths and CP overhead of current LTE.The solutions in the second version can be seen as quite compatible with LTE, in the sense that the CP overhead and seven symbols in a subframe are the same as the CP overhead and the number of symbols used for current LTE, but the symbols with different CP lengths are distributed differently from LTE, for example, 7 (3,4) and 7 (2,5).

[004] In LTE, the transmission time interval (TTI) parameter is used to refer to the transmission time for a defined set of OFDM symbols. In some examples, the TTI may also be called a “transmission time unit (TTU)” or “subframe duration,” which indicates the physical layer (PHY) symbol and frame time structure. Similar to TTI, TTU and “subframe duration” are equal to the sum of the useful symbol duration and any symbol overhead, such as the cyclic prefix time CP, for all OFDM symbols included in a set. For the second approach, with so-called future compatibility, a flexible number of symbol configurations can be considered per transmission time interval (TTI). For any SS base, any number of symbols per TTI can be configured. This can be referred to as a discretionary N (dN) solution, based on various application requirements such as latency, control / data, Petition 870240098210, dated 11 / 18 / 2024, page 18 / 108 3 / 41 TDD / FDD configurations, and coexistence, etc. As will be discussed below, the term coexistence refers to two or more sub-bands in use for a given connection employing compatible numbering systems.

[005] In LTE, a channel bandwidth and a transmission bandwidth are defined, where the channel bandwidth is defined as the bandwidth of a carrier while the transmission bandwidth is defined as the number of available RBs (Resource Block) on the carrier. In LTE, since RBs with different subcarrier spacings occupy the same bandwidth, the transmission bandwidth can be applied to all subcarrier spacings.

[006] However, in New Radio (NR), 12, the number of subcarriers is the same for all RBs with different subcarrier spacings. Thus, sets of suitable subcarrier spacings for different channel bandwidths are different. Next, it must be determined for the relationships between channel bandwidth, transmission bandwidth and subcarrier spacing.

[007] In LTE, channel bandwidth includes a useful transmission bandwidth and guideband, where the guideband is about 10% of the channel bandwidth for 6 GHz sub-bands. In NR, greater spectrum efficiency can be achieved, where the guideband can be significantly reduced or even removed, for example, 1% of the channel bandwidth can be used for guideband.

[008] To determine a channel bandwidth for a given subcarrier spacing, the number of subcarriers used in the channel bandwidth must be constrained by reasonable implementation costs, for example, FFT size or sampling rate. As a result, the maximum channel bandwidth for the given subcarrier spacing, and the maximum available channel bandwidths are different. Petition 870240098210, dated 11 / 18 / 2024, page 19 / 108 4 / 41 for different subcarrier spacing options. SUMMARY

[009] In one embodiment, a method in a network component for determining system numerology and channel bandwidth includes determining, by the network component, one or more subcarrier spacing options from a set of candidate subcarrier spacings that is associated with a carrier frequency band. The method also includes transmitting, by the network component, a signal indicating to one or more UEs one or more subcarrier spacing options from the set of candidate subcarrier spacings.

[0010] In one embodiment, a wireless device for determining system numerology and channel bandwidth includes a processor; and a computer-readable storage medium storing programming for execution by the processor. The programming includes instructions for determining one or more subcarrier spacing options from a set of candidate subcarrier spacings that is associated with a carrier frequency band. The programming also includes instructions for transmitting a signal indicating to one or more UEs one or more subcarrier spacing options from the set of candidate subcarrier spacings.

[0011] In one embodiment, a non-transient computer-readable medium storing computer instructions for instructing a wireless device to determine system numerology and channel bandwidth, which when executed by one or more processors, cause the one or more processors to perform the determination of one or more subcarrier spacing options from a set of candidate subcarrier spacings that is associated with a carrier frequency band. The instructions, when executed by one or more processors, also cause the one or more processors to perform the transmission of a signal indicating to one or more UEs Petition 870240098210, dated 11 / 18 / 2024, page 20 / 108 5 / 41 one or more subcarrier spacing options from the candidate subcarrier spacing set.

[0012] In one embodiment, a method on a network component for determining system numerology and channel bandwidth includes determining, by the network component, one or more channel bandwidths selected from a set of channel bandwidths. The method also includes transmitting, by the network component, a signal indicating one or more channel bandwidths.

[0013] In one embodiment, a method on a network component for determining system numerology and channel bandwidth includes acquiring, by the network component, a set of candidate subcarrier spacings. The method also includes determining, by the network component, a maximum channel bandwidth or a maximum transmission bandwidth.

[0014] In one embodiment, a wireless device for encoding data with a polar code, a processor, and a computer-readable storage medium storing programming for execution by the processor. The programming includes instructions for acquiring a set of candidate subcarrier spacings. The programming also includes instructions for determining a maximum channel bandwidth or a maximum transmission bandwidth.

[0015] In one embodiment, a non-transient, computer-readable means is provided storing computer instructions to instruct a wireless device to encode data with a polar code. When executed by one or more processors, programming causes one or more processors to perform the acquisition of a set of candidate subcarrier spacings. When executed by one or more processors, programming also causes one or more processors to perform the determination of a maximum channel bandwidth or a maximum transmission bandwidth. Petition 870240098210, dated 11 / 18 / 2024, page 21 / 108 6 / 41

[0016] In one or more aspects, the method also includes determining, by the network component, one or more channel bandwidths selected from a set of channel bandwidths. The method also includes transmitting, by the network component, a signal indicating one or more channel bandwidths.

[0017] In one or more aspects, the channel bandwidth is either in the sub-6 GHz band or above 6 GHz.

[0018] In one or more aspects, a set of candidate subcarrier spacings associated with a carrier frequency band is predefined and preconfigured by the network.

[0019] In one or more aspects, signal transmission comprises semi-static signaling and dynamic signaling.

[0020] In one or more aspects, signal transmission comprises the transmission of a radio resource control (RRC) signal and the transmission of a layer 1 (L1) signal.

[0021] In one or more aspects, signal transmission comprises transmitting a broadcast message, a multicast message, and a unicast message.

[0022] In one or more aspects, the method includes determining a maximum channel bandwidth or a maximum transmission bandwidth according to the carrier frequency band.

[0023] In one or more aspects, the method also includes, before determining the maximum channel bandwidth or the maximum transmission bandwidth, determining, by the network component, a basic subcarrier spacing in the set of candidate subcarrier spacings.

[0024] In one or more aspects, the maximum transmission bandwidth is determined, by the network component, according to the maximum channel bandwidth.

[0025] In one or more respects, the channel bandwidth Petition 870240098210, dated 11 / 18 / 2024, page 22 / 108 7 / 41 maximum is determined, by the network component, according to a maximum Fast Fourier Transform (FFT) size for a given subcarrier spacing.

[0026] In one or more aspects, the method also includes acquiring, by the network component, a usable subcarrier spacing set from the subcarrier spacing set according to a carrier frequency band.

[0027] In one or more aspects, the transmission bandwidth location is determined according to a number of resource blocks (RBs) in the carrier frequency band and a reference point.

[0028] In one or more aspects, each usable subcarrier spacing set is associated with FFT sizes such that the same sampling rate is maintained across different scalable subcarrier spacing (SCS) options applicable to a given channel bandwidth.

[0029] In some embodiments, the disclosed systems and methods have several advantages. For example, the disclosed methods can provide a way to determine the subcarrier spacing options that are associated with the channel or bandwidths of transmissions in a frequency band, and determine the maximum sample rate / FFT size ratio associated with a number of subcarriers used in a frequency bandwidth, so that the system can have efficient operations and super performance with reasonable implementation complexity.

[0030] Other aspects and features of the embodiments of the present disclosure will become apparent to those with common knowledge of the art after reviewing the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] For a fuller understanding of the present invention and its advantages, reference is now made to the following Petition 870240098210, dated 11 / 18 / 2024, p. 23 / 108 8 / 41 descriptions taken in conjunction with the attached drawings, in which: Figure 1 shows a communication system. Figure 2A shows an exemplary wireless communication device. Figure 2B shows an exemplary base station. Figure 3 shows an example of the current transmission bandwidth configuration. Figure 4A shows an example of the maximum channel bandwidth depending on the SCS sets. Figure 4B shows an example of a tabulated scheme for determining a channel bandwidth based on a subcarrier spacing and the number of subcarriers (or RBs). Figure 4C shows an example of the maximum channel bandwidth depending on the basic SCS. Figure 5A shows an example of the transmission bandwidth depending on the SCS sets. Figure 5B shows an example of the transmission bandwidth depending on the basic SCS. Figure 6A shows an example of SCS associated with channel bandwidth based on the maximum FFT size. Figure 6B shows an example of the usable system channel bandwidth associated with SCS. Figure 6C shows an example of system channel bandwidth associated with usable SCS and FFT size. Figure 6D shows an example of the carrier bandwidths (p / ws) for certain SCS options to support the maximum number of subcarriers per carrier, where NR is 3300 or 6600. Figure 7 is a flowchart illustrating one embodiment of a 700 method for determining numerology for wireless communication systems. Figure 8 shows an example of a computer system. Figure 9 shows an example of a communication device. Petition 870240098210, dated 11 / 18 / 2024, page 24 / 108 9 / 41 wireless. DETAILED DESCRIPTION OF THE ILLUSTRATIVE MODALITIES

[0032] It should be understood from the outset that although illustrative implementations of one or more embodiments of the present disclosure are provided below, the systems and / or methods disclosed may be implemented using any number of techniques, whether currently known or future. The disclosure shall in no way be limited to the illustrative implementations, drawings and techniques illustrated below, including the exemplary designs and implementations illustrated and described herein, but may be modified within the scope of the appended claims together with their full scope of equivalents.

[0033] Methods and devices for obtaining a basic subcarrier spacing, or a channel bandwidth, or a maximum transmission bandwidth, or a set of usable subcarrier spacings via a predefined mapping rule are disclosed here.

[0034] Methods and systems for providing an OFDM numerology scheme in a communications system allowing one or more of multiple subcarrier spacing options, multiple transmission TTI options, multiple CP options, multiple carrier bandwidth options, or multiple FFT sizes are also disclosed here.

[0035] According to one embodiment of the disclosure, a method for obtaining the maximum channel bandwidth and / or maximum transmission bandwidth from the set of subcarrier spacings is provided through a mapping rule.

[0036] According to one aspect of the disclosure, a method for obtaining the maximum channel bandwidth and / or the maximum transmission bandwidth from a basic subcarrier spacing is provided through a mapping rule. Petition 870240098210, dated 11 / 18 / 2024, page 25 / 108 10 / 41

[0037] According to one aspect of the disclosure, a method for obtaining the maximum transmission bandwidth from the maximum channel bandwidth is provided by means of a mapping rule.

[0038] According to one aspect of the disclosure, a method for obtaining channel bandwidth from the subcarrier spacing set and maximum FFT size is provided by means of a mapping rule.

[0039] According to one aspect of the disclosure, a method for obtaining the usable subcarrier spacing set from a system channel bandwidth is provided by means of a mapping rule.

[0040] According to one aspect of the disclosure, a wireless device is provided to implement all modalities of the methods to obtain at least one of the following parameters: basic subcarrier spacing, channel bandwidth, maximum transmission bandwidth or set of usable subcarrier spacings.

[0041] In one embodiment, a method in a network component for determining system numerology and channel bandwidth includes determining, by the network component, one or more subcarrier spacing options from a set of candidate subcarrier spacings that is associated with a carrier frequency band. The method also includes transmitting, by the network component, a signal indicating to one or more UEs one or more subcarrier spacing options from the set of candidate subcarrier spacings.

[0042] In one embodiment, a wireless device for determining system numerology and channel bandwidth includes a processor; and a computer-readable storage medium storing programming for execution by the processor. The programming includes instructions for determining one or more subcarrier spacing options from a Petition 870240098210, dated 11 / 18 / 2024, page 26 / 108 11 / 41 candidate subcarrier spacing set that is associated with a carrier frequency band. The programming also includes instructions to transmit a signal indicating to one or more UEs one or more subcarrier spacing options from the candidate subcarrier spacing set.

[0043] In one embodiment, a non-transient computer-readable medium storing computer instructions for instructing a wireless device to determine system numerology and channel bandwidth, which when executed by one or more processors, cause the one or more processors to perform the determination of one or more subcarrier spacing options from a set of candidate subcarrier spacings that is associated with a carrier frequency band. The instructions, when executed by one or more processors, also cause the one or more processors to perform the transmission of a signal indicating to one or more UEs one or more subcarrier spacing options from the set of candidate subcarrier spacings.

[0044] In one embodiment, a method on a network component for determining system numerology and channel bandwidth includes determining, by the network component, one or more channel bandwidths selected from a set of channel bandwidths. The method also includes transmitting, by the network component, a signal indicating one or more channel bandwidths.

[0045] In one or more aspects, the method also includes determining, by the network component, one or more channel bandwidths selected from a set of channel bandwidths. The method also includes transmitting, by the network component, a signal indicating one or more channel bandwidths.

[0046] In one or more aspects, the channel bandwidth is either in the sub-6 GHz band or above 6 GHz. Petition 870240098210, dated 11 / 18 / 2024, page 27 / 108 12 / 41

[0047] In one or more aspects, a set of candidate subcarrier spacings associated with a carrier frequency band is predefined and preconfigured by the network.

[0048] In one or more aspects, signal transmission comprises semi-static signaling and dynamic signaling.

[0049] In one or more aspects, the signal transmission comprises a transmission of a radio resource control (RRC) signal and a transmission of a layer 1 (L1) signal.

[0050] In one or more aspects, signal transmission comprises transmitting a broadcast message, a multicast message, and a unicast message.

[0051] In one or more aspects, the method includes determining a maximum channel bandwidth or a maximum transmission bandwidth according to the carrier frequency band.

[0052] In one or more aspects, the method also includes, before determining the maximum channel bandwidth or the maximum transmission bandwidth, determining, by the network component, a basic subcarrier spacing in the set of candidate subcarrier spacings.

[0053] In one or more aspects, the maximum transmission bandwidth is determined, by the network component, according to the maximum channel bandwidth.

[0054] In one or more aspects, the maximum channel bandwidth is determined, by the network component, according to a maximum Fast Fourier Transform (FFT) size for a given subcarrier spacing.

[0055] In one or more aspects, the method also includes acquiring, by the network component, a set of usable subcarrier spacings from the set of subcarrier spacings according to a carrier frequency band. Petition 870240098210, dated 11 / 18 / 2024, p. 28 / 108 13 / 41

[0056] In one or more aspects, the transmission bandwidth location is determined according to a number of resource blocks (RBs) in the carrier frequency band and a reference point.

[0057] In one or more aspects, each usable subcarrier spacing set is associated with FFT sizes such that the same sampling rate is maintained across different scalable subcarrier spacing (SCS) options applicable to a given channel bandwidth.

[0058] Frame structures have been proposed that are flexible in terms of the use of different numerologies. A numerology is defined as the set of physical layer parameters of the air interface that are used to communicate a particular signal. A numerology is described in terms of at least subcarrier spacing and OFDM symbol duration, and may also be defined by other parameters such as Fast Fourier Transform (FFT) / Inverse FFT (IFFT) length, transmission time interval length, and cyclic prefix (CP) length or duration. In some implementations, the numerology definition may also include which of several candidate waveforms is used to communicate the signal.Possible candidate waveforms may include, but are not limited to, one or more orthogonal or non-orthogonal waveforms selected from the following: Orthogonal Frequency Division Multiplexing (OFDM), Filtered OFDM (f-OFDM), Filter Bank Multicarrier (FBMC), Universal Filtered Multiplexing (UFMC), Generalized Frequency Division Multiplexing (GFDM), Single Carrier Frequency Division Multiple Access (SC-FDMA), Low Density Signature Multicarrier Code Division Multiple Access (LDSMC-CDMA), Wavelet Packet Modulation (WPM), Faster than Nyquist Waveform (FTN), Low Peak-to-Average Power Rate (low PAPR WF) Waveform, Multiple Access by... Petition 870240098210, dated 11 / 18 / 2024, page 29 / 108 14 / 41 Pattern Division Multiple Access (PDMA), Grid Partitioning Multiple Access (LPMA), Resource Sparse Multiple Access (RSMA), and Sparse Code Multiple Access (SCMA).

[0059] These numerologies can be scalable in the sense that the subcarrier spacings of different numerologies are multiples of each other, and the time interval lengths of different numerologies are also multiples of each other. Such a scalable design across multiple numerologies provides implementation benefits, for example, the total scalable OFDM symbol duration in a time-division duplexing (TDD) context.

[0060] Table 1 below shows the parameters associated with some example numerologies, in the four columns under “Frame Structure”. Frames can be configured using one or a combination of the four scalable numerologies. For comparison purposes, the right-hand column of the table shows the conventional fixed LTE numerology. The first column is for a numerology with 60 kHz subcarrier spacing, which also has the shortest OFDM symbol duration, because the OFDM symbol duration varies inversely with subcarrier spacing. This may be suitable for very low latency communications, such as Vehicle-to-Any (V2X) communications. The second column is for numerology with 30 kHz subcarrier spacing. The third column is for numerology with 15 kHz subcarrier spacing. This numerology has the same configuration as in LTE, except that there are only 7 symbols in a time span.This may be suitable for broadband services. The fourth column is for a numerology with 7.5 kHz spacing, which also has the longest OFDM symbol duration among the four numerologies. This may be useful for coverage and transmission enhancement. Additional uses for these numerologies will be, or will become, apparent to people with common knowledge of the art. Petition 870240098210, dated 11 / 18 / 2024, page 30 / 108 Of the four numerologies listed, those with subcarrier spacing of 30 kHz and 60 kHz are more robust to Doppler dispersion (fast motion conditions) due to the greater subcarrier spacing. It is further considered that different numerologies may use different values ​​for other physical layer parameters, such as the same subcarrier spacing and different cyclic prefix lengths.

[0061] It is further contemplated that other subcarrier spacings may be used, such as larger or smaller subcarrier spacings. As illustrated in the example above, the subcarrier spacing of each numerology (7.5 kHz, 15 kHz, 30 kHz, 60 kHz) may be a factor of 2n times the smaller subcarrier spacing, where n is an integer. Larger subcarrier spacings that are also related by a factor of 2n, such as 120 kHz, may also or alternatively be used. Smaller subcarrier spacings that are also related by a factor of 2n, such as 3.75 kHz, may also or alternatively be used. The durations of the numerology symbols may also be related by a factor of 2n. Two or more numerologies related in this way are sometimes called scalable numerologies.

[0062] In other examples, more limited scalability can be implemented, in which two or more numerologies have subcarrier spacings that are integer multiples of the smallest subcarrier spacing, without necessarily being related by a factor of 2n. Examples include subcarrier spacings of 15 kHz, 30 kHz, 45 kHz, 60 kHz, 120 kHz.

[0063] In other examples, non-scalable subcarrier spacings may be used, which are not all integer multiples of the smallest subcarrier spacing, such as 15 kHz, 20 kHz, 30 kHz, 60 kHz.

[0064] In Table 1, each numerology uses a first cyclic prefix length for a first number of Petition 870240098210, dated 11 / 18 / 2024, page 31 / 108 16 / 41 OFDM symbols and a second cyclic prefix length for a second number of OFDM symbols. For example, in the first column under “Frame Structure”, the time range includes 3 symbols with a cyclic prefix length of 1.04 ps followed by 4 symbols with a cyclic prefix length of 1.3 ps. Table 1: Example of a set of numerologies Frame Structure Parameters Baseline (LTE) Time Interval Length 0.125 ms 0.25 ms 0.5 ms 1 ms TTI = 1 ms Subcarrier Spacing 60 kHz 30 kHz 15 kHz 7.5 kHz 15 kHz FFT Size 512 1024 2048 4096 2048 Symbol Duration 16.67 ps 33.33 ps 66.67 ps 133.33 ps 66.67 ps # symbols in each time interval 7 (3,4) 7 (3,4) 7 (3,4) 7 (3,4) 14 (2,12) CP Length 1.04 ps, 1.30 ps (32,40 point) 2.08 ps, 2.60 ps (64.80 points) 4.17 ps, 5.21 ps (128.16 0 points) 8.33 ps, 10.42 ps (256.32 0 points) 5.2 ps, 4.7 ps (160.14 4 points) CP overload 6.67% 6.67% 6.67% 6.67% 6.67% Petition 870240098210, dated 11 / 18 / 2024, page 32 / 108 17 / 41 BW (MHz) 20 20 20 20 20

[0065] Table 2 shows a set of numerology examples where different cyclic prefix lengths can be used in different numerologies with the same subcarrier spacing. Table 2: Example of numerology with different CP lengths Subcarrier spacing (kHz) Useful duration Tu (ps) 66.67 33.33 33.33 16.67 16.67 16.67 CP length (ps) (1) 5.2 5.73 2.6 2.86 1.3 3.65 CP length (ps) (6 or 12) 4.7 5.08 2.34 2.54 1.17 3.13 Number of symbols per TTI 7 (1.6) 13 (1.12) 7 (1.6) 13 (1.12) 7 (1.6) 25 (10.15) TTI (ms) 0.5 0.5 0.25 0.25 0.125 0.5 CP Overhead 6.70% 13.30% 6.70% 13.30% 6.70% 16.67%

[0066] It should be understood that the specific numerologies of the examples in Tables 1 and 2 are for illustrative purposes, and that a flexible chart structure combining other numerologies may be employed alternatively.

[0067] OFDM-based signals can be used to transmit a signal in which multiple numerologies coexist simultaneously. More specifically, multiple sub-band OFDM signals can be generated in parallel, each within a different sub-band, and each sub-band having a different subcarrier spacing (and more generally a different numerology). The multiple sub-band signals are combined into Petition 870240098210, dated 11 / 18 / 2024, page 33 / 108 18 / 41 a single signal for transmission, for example, for downlink transmissions. Alternatively, multiple sub-band signals can be transmitted from separate transmitters, for example, for uplink transmissions from multiple electronic devices (EDs), which can be user equipment (UEs). In a specific example, filtered OFDM (f-OFDM) can be employed using filtering to shape the frequency spectrum of each sub-band OFDM signal, thus producing a frequency-localized waveform, and then combining the sub-band OFDM signals for transmission. f-OFDM reduces out-of-band emission and improves transmission, and addresses the non-orthogonality introduced as a result of using different subcarrier spacings. Alternatively, a different approach can be used to obtain a frequency-localized waveform, such as windowed OFDM (W-OFDM).

[0068] The use of different numerologies can allow the coexistence of a diverse set of use cases with a wide range of quality of service (QoS) requirements, such as different levels of latency or reliability tolerance, as well as different bandwidth requirements or signaling overhead. In one example, the base station can signal to the ED an index representing a selected numerology, or a single parameter (e.g., subcarrier spacing) of the selected numerology. Signaling can be done in a dynamic or semi-static manner, for example, on a control channel, such as the physical downlink control channel (PDCCH), or the group common PDCCH, or on the downlink control information (DCI). Other signaling options include a medium access control (MAC) control element (CE) message, RRC message, broadcast signal, or multicast.Based on this information, the ED can determine the parameters of the selected numerology from other information, such as a numerology lookup table. Petition 870240098210, dated 11 / 18 / 2024, page 34 / 108 19 / 41 candidates stored in memory.

[0069] Figure 1 illustrates an example communication system 100. In general, system 100 allows multiple wired or wireless users to transmit and receive data and other content. System 100 may implement one or more channel access methods, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or single carrier FDMA (SC-FDMA).

[0070] In this example, the communication system 100 includes electronic devices (ED) 110a-110c, radio access networks (RANs) 120a-120b, a core network 130, a public switched telephone network (PSTN) 140, the Internet 150 and other networks. 160. While certain numbers of these components or elements are shown in Figure 1, any number of these components or elements can be included in the system 100.

[0071] EDs 110a-110c are configured to operate and / or communicate on the 100 system. For example, EDs 110a-110c are configured to transmit and / or receive via wireless or wired communication channels. Each ED 110a-110c represents any suitable end-user device and may include such devices (or may be referred to as) a user equipment / device (UE), wireless transmit / receive unit (WTRU), mobile station, fixed or mobile subscriber unit, mobile phone, personal digital assistant (PDA), smartphone, laptop, computer, touchpad, wireless sensor, or consumer electronic device.

[0072] RANs 120a-120b herein include base stations 170a-170b, respectively. Each base station 170a-170b is configured to wirelessly interface with one or more of the EDs 110a-110c to enable access to the core network 130, the PSTN 140, the Internet 150, and / or the other networks 160. For example, base stations 170a-170b may include (or be) one or more of Petition 870240098210, dated 11 / 18 / 2024, p. 35 / 108 20 / 41 several well-known devices, such as a base transceiver station (BTS), a B Node (NodeB), an evolved B Node (eNodeB), a home B Node, a home eNodeB, a site controller, an access point (AP), or a wireless router. EDs 110a-110c are configured to interface and communicate with the Internet 150 and can access the core network 130, the PSTN 140, and / or other networks 160.

[0073] In the embodiment shown in Figure 1, base station 170a is part of RAN 120a, which may include other base stations, elements, and / or devices. Additionally, base station 170b is part of RAN 120b, which may include other base stations, elements, and / or devices. Each 170a-170b base station operates to transmit and / or receive wireless signals within a particular region or geographic area, sometimes referred to as a cell. In some embodiments, MIMO (multiple input multiple output) technology may be employed, having multiple transceivers for each cell.

[0074] Base stations 170a-170b communicate with one or more EDs 110a-110c via one or more 190 air interfaces using wireless communication links. The 190 air interfaces may utilize any suitable radio access technology.

[0075] It is contemplated that the 100 system may utilize multi-channel access functionality, including such schemes as described above. In particular embodiments, base stations and EDs implement LTE, LTE-A and / or LTE-B. Naturally, other multiple access schemes and wireless protocols may be used.

[0076] RANs 120a-120b are in communication with core network 130 to provide EDs 110a-110c with voice, data, application, Voice over Internet Protocol (VoIP), or other services. Understandably, RANs 120a-120b and / or core network 130 may be in direct or indirect communication with a Petition 870240098210, dated 11 / 18 / 2024, page 36 / 108 21 / 41 or more other RANs (not shown). The core network 130 can also serve as a gateway access to other networks (such as the PSTN 140, the Internet 150 and other networks 160). Additionally, some or all EDs 110a-110c may include functionality to communicate with different wireless networks via different wireless links, using different wireless technologies and / or protocols. Instead of wireless communication (or in addition), the EDs may communicate via wired communication channels to a service provider or switch (not shown), and to the Internet 150.

[0077] Although Figure 1 illustrates an example of a communication system, various changes can be made to Figure 1. For example, communication system 100 can include any number of EDs, base stations, networks, or other components in any suitable configuration.

[0078] Figures 2A and 2B illustrate examples of devices that can implement the methods and teachings according to this disclosure. In particular, Figure 2A illustrates an example of ED 110 and Figure 2B illustrates an example of base station 170. These components can be used in system 100 or any other suitable system.

[0079] As shown in Figure 2A, the ED 110 includes at least one processing unit 200. The processing unit 200 implements various processing operations of the ED 110. For example, the processing unit 200 may perform signal encoding, data processing, power control, input / output processing, or any other functionality that allows the ED 110 to operate in the system 100. The processing unit 200 also supports the methods and teachings described in more detail above. Each processing unit 200 includes any suitable processing or computing device configured to perform one or more operations. Each processing unit 200 may, for example, Petition 870240098210, dated 11 / 18 / 2024, page 37 / 108 22 / 41 include a microprocessor, microcontroller, digital signal processor, programmable field gate array, or application-specific integrated circuit.

[0080] The ED 110 also includes at least one 202 transceiver. The 202 transceiver is configured to modulate data or other content for transmission by at least one antenna or NIC (Network Interface Controller) 204. The 202 transceiver is also configured to demodulate data or other content received by at least one antenna 204. Each 202 transceiver includes any structure suitable for generating signals for wireless or wired transmission and / or processing received wireless or wired signals. Each 204 antenna includes any structure suitable for transmitting and / or receiving wireless or wired signals. One or multiple 202 transceivers could be used in the ED 110, and one or multiple 204 antennas could be used in the ED 110. Although shown as a single functional unit, a 202 transceiver could also be implemented using at least one separate transmitter and at least one separate receiver.

[0081] The ED 110 also includes one or more input / output devices 206 or interfaces (such as a wired internet interface 150). Input / output devices 206 facilitate interaction with a user or other devices (network communications) on the network. Each input / output device 206 includes any structure suitable for providing information or receiving / providing information from a user, such as a speaker, microphone, mini-keyboard, keyboard, monitor or touch screen, including network interface communications.

[0082] In addition, the ED 110 includes at least one 208 memory. The 208 memory stores instructions and data used, generated, or collected by the ED 110. For example, the 208 memory may store software or firmware instructions executed by the 200 processing unit(s) and used data. Petition 870240098210, dated 11 / 18 / 2024, page 38 / 108 23 / 41 to reduce or eliminate interference in received signals. Each 208 memory includes any suitable volatile and / or non-volatile retrieval and storage device(s). Any suitable memory type may be used, such as random access memory (RAM), read-only memory (ROM), hard disk, optical disk, subscriber identity module (SIM) card, secure digital memory card (SD), and the like.

[0083] As shown in Figure 2B, base station 170 includes at least one processing unit 250, at least one transceiver 252, which includes functionality for a transmitter and a receiver, one or more antennas 256, at least one memory 258, and one or more input / output devices or interfaces 266. A scheduler 253, which would be understood by one skilled in the art, is coupled to the processing unit 250. The scheduler 253 could be included within or operated separately from base station 170. The processing unit 250 implements various processing operations of base station 170, such as signal encoding, data processing, power control, input / output processing, or any other functionality. The processing unit 250 may also support the methods and teachings described in greater detail above.Each 250 processing unit includes any suitable processing or computing device configured to perform one or more operations. Each 250 processing unit may, for example, include a microprocessor, microcontroller, digital signal processor, programmable field gate array, or application-specific integrated circuit.

[0084] Each 252 transceiver includes any suitable structure for generating signals for wireless or wired transmission to one or more EDs or other devices. Each 252 transceiver further includes any suitable structure for processing signals received wirelessly or by wire from one or more Petition 870240098210, dated 11 / 18 / 2024, page 39 / 108 24 / 41 EDs or other devices. Although shown combined as a 252 transceiver, a transmitter and receiver could be separate components. Each 256 antenna includes any suitable structure for transmitting and / or receiving wireless or wired signals. While a common 256 antenna is shown here as being coupled to the 252 transceiver, one or more 256 antennas could be coupled to the 252 transceiver(s), allowing separate 256 antennas to be coupled to the transmitter and receiver if fitted as separate components. Each 258 memory includes any suitable volatile and / or non-volatile retrieval and storage device(s). Each 266 input / output device facilitates interaction with a user or other devices (network communications) on the network. Each 266 input / output device includes any suitable structure for providing information to or receiving / providing information from a user, including network interface communications.

[0085] Figure 3 is a table 300 illustrating an example of the current transmission bandwidth (BW) configuration NRB (number of RB) in E-UTRA channel bandwidths.

[0086] In example aspects, for backward compatible solutions and future compatibility, the methodology and design criteria are as follows: for any base subcarrier spacing (15 kHz, 16.875 kHz, 17.5 kHz, 22.5 kHz, 16.5 kHz, etc.), the integer scalable subcarrier spacing (SCS) values ​​have an inversely scalable relationship over the CPs for a given CP overhead. Furthermore, the integer scalable SCS values ​​have an inversely scalable relationship over both the CPs and TTIs for a given number of symbols and a given CP overhead. Larger TTIs can be concatenated by smaller TTIs, where a minimum TTI (or basic TTI unit) consists of the minimum number of symbols that is valid for implementation configurable in the TTI at such spacing. Petition 870240098210, dated 11 / 18 / 2024, page 40 / 108 25 / 41 base subcarrier. For example, a scheme using 15 kHz subcarrier spacing is valid with seven symbols per TTI to make the scheme backward compatible with LTE. By another example, a scheme using 16.875 kHz subcarrier spacing is valid with one symbol per TTI for the implementation. Parameter settings (e.g., SS, TTI, CP) are based on various application requirements such as latency, control / data, TDD / FDD configurations and coexistence, etc.

[0087] In example aspects, a communications network employing an OFDM transmission system is provided in which OFDM transmission parameters, such as the subcarrier spacing parameter, can be configured to accommodate different requests that may be placed on the network. Such requests may relate to factors such as user equipment (UE) speed, use of high-frequency bands, or use of low-cost narrowly spaced frequency bandwidth communications devices. In this respect, OFDM numerology schemes are described here and can be applied to radio frame structures for both FDD and TDD modes in a wireless network.Conveniently, OFDM numerology schemes allow for one or more of: multiple subcarrier spacing options; multiple transmission time interval (TTI) options; multiple cyclic prefix (CP) options; multiple carrier bandwidth options; and multiple Fast Fourier Transform (FFT) sizes. Therefore, OFDM numerology schemes can be flexible enough to meet different requirements that may arise in a wireless network.

[0088] Examples of aspects are described here in which the parameters of a Filtered OFDM (F-OFDM) system can, in at least some applications, be configurable to support multiple waveforms, multiple access schemes and Petition 870240098210, dated 11 / 18 / 2024, page 41 / 108 26 / 41 multiple frame structures, thus accommodating a range of application scenarios and service requirements. As an example, Figure 3 illustrates an F-OFDM time-frequency signal graph illustrating the application of three subband filters to create OFDM subcarrier groupings with three different inter-subcarrier spacings, OFDM symbol durations, and protection periods. By enabling multiple parameter configurations, F-OFDM can, in at least some applications, allow for the optimal selection of parameters for each service group and thus facilitate overall system efficiency.

[0089] In example aspects, OFDM numerology with scalable features is designed with TTIs that are linearly and inversely scaled with subcarrier spacing options to maintain a limited set of sampling frequencies for different FFT sizes. In some applications, such a configuration can reduce the complexity of the network interface used in communication equipment – ​​for example, the chipset implementation complexity in receiver devices can be reduced. In some example aspects, optimized CP and TTI schemes are provided to achieve one-to-all applications for each subcarrier spacing option.

[0090] Figures 4A, 4B, and 4C show Tables 400, 405, and 410, which illustrate the SCS set for channel bandwidth, a channel bandwidth determination, and basic SCS and maximum channel BW, respectively. The maximum available channel bandwidth in different bands is different, for example, 100 MHz for sub-6 GHz and 400 MHz for above 6 GHz. The candidate SCS (subcarrier spacing) set is different for different bands, for example, {15, 30, 60} kHz for 3.5 GHz, {30, 60, 120} kHz for 6 GHz, {60, 120, 240} kHz for 28 GHz, and {240, 480} kHz for 70 GHz. As a result, the selection Petition 870240098210, dated 11 / 18 / 2024, p. 42 / 108 27 / 41 of subcarrier spacing options depends on which frequency band (e.g., 6GHz or 6GHz), and the maximum bandwidths in different bands are different (e.g., 100MHz for sub-6GHz and 400MHz for the higher frequency band). An example aspect is shown in Figure 4A, where the maximum channel bandwidth is defined based on different sets of SCS. As a result, the channel bandwidth or transmission bandwidth (where guide bands are excluded from the channel bandwidth, if any) is associated with a carrier band (e.g., 6GHz), numerology (including subcarrier spacing and CP), and the number of subcarriers, where the maximum number of subcarriers per channel bandwidth will be limited by the maximum FFT size (e.g., 4096), and a subcarrier spacing option or a set of subcarrier spacings will be based on a carrier frequency band.In some embodiments, a subcarrier spacing option (SCS) can be chosen from a set of subcarrier spacing options that is associated with and predefined for a carrier frequency band, where the selection of SCS may be based on certain considerations such as application requirements, mobility, timing synchronization and / or propagation environment, etc. In a network, one or more carrier frequency bands may be included, so that the associated subcarrier spacing / numerology sets can be determined accordingly; the network will configure one or more subcarrier spacing options for each carrier frequency band.

[0091] The set of subcarrier spacing options associated with a carrier frequency band can be defined in a table form where each SCS can use an index to be indicated in the signaling messages from the Petition 870240098210, dated 11 / 18 / 2024, page 43 / 108 28 / 41 base station; or the base station can send the pre-configuration configuration and signaling describing the table. The configuration of a subcarrier spacing, a channel bandwidth and / or the association table can be performed by different schemes, for example, broadcast channel, multicast and / or unicast; or semi-static signaling (Radio Resource Control (RRC) or with a MAC CE), dynamic signaling (for example, Downlink Control Information (DCI) or Layer 1 (L1) signaling) and / or a Downlink Control (DL) channel as a common group PDCCH.

[0092] The network configures one or more subcarrier spacing options based on or associated with a carrier frequency band, where the carrier frequency band can be, for example, 1.8 GHz, 2.4 GHz, 35 GHz, or 75 GHz. A sub-6 GHz band is used to describe a band where the carrier frequency band is below 6 GHz, while a band above 6 GHz is used to describe a band where the carrier frequency band is above 6 GHz. Within each carrier frequency band, a channel bandwidth consists of a transmission bandwidth and a guideband (if present, for example, 10% of the channel bandwidth may be a guideband in LTE). A channel bandwidth is based on a subcarrier spacing and the number of subcarriers or RBs used, where the maximum channel bandwidth is dependent on the maximum number of subcarriers used (e.g., < maximum FFT size).Due to the fact that there are possible numerical channel bandwidths depending on the number of subcarriers / RBs for any given numerology, generally only a few channel bandwidth options can be defined, such as 5 MHz, 10 MHz, 20 MHz, 50 MHz, 100 MHz for sub-6 GHz band. A numerology will include parameters of at least subcarrier spacing and CP overhead. Petition 870240098210, dated 11 / 18 / 2024, page 44 / 108 29 / 41

[0093] Thus, for a given numerology, a channel bandwidth can be determined by the number of subcarriers or number resource blocks (RBs) used and (optionally) guidebands in the channel bandwidth; for example, with a 10% guideband, a 5MHz channel bandwidth can be built by 15KHz subcarriers with 25 RBs; and the transmission bandwidth can be determined when the (optional) guideband location is determined / configured in the channel bandwidth. The guideband configuration (if any) can be included in the signaling described in the paragraph above.Note that the bandwidth of a channel is generally less than the maximum bandwidth in a given frequency band, and this is considered based on several factors, for example, to support coexistence with LTE and maximum UE bandwidth processing capacity, and to consider the actual bandwidth requirements in an application or service, etc. A tabular scheme for determining a channel bandwidth based on subcarrier spacing and the number of subcarriers (or RBs) is given in Figure 4B.

[0094] Figure 4C provides an example of an aspect where a basic SCS is defined for each set of SCSs and the maximum channel bandwidth is mapped from the basic SCS. The basic SCS applies to most scenarios and services. For example, in a {15, 30, 60} kHz SCS set, the 30kHz SCS at 3.5GHz applies to most eMBB users, the 15kHz SCS applies to low-speed, high-dispersion-delay scenarios, and the 60kHz SCS applies to high-Doppler and URLLC scenarios. Therefore, 30 kHz can be the basic SCS for the {15, 30, 60} kHz SCS set. The maximum channel bandwidth can be defined based on the basic SCS and the maximum FFT size. In Figure 4C, the maximum FFT size is 2048 as an example.

[0095] When the maximum channel bandwidth is Petition 870240098210, dated 11 / 18 / 2024, p. 45 / 108 30 / 41 determined, for example, from the examples in Figure 4A, Figure 4B, Figure 4C, the maximum transmission bandwidth can be determined accordingly. With predefined rules, the maximum channel bandwidth and the maximum transmission bandwidth can also be obtained simultaneously. An exemplary aspect is shown in Table 500 in Figure 5A, where the maximum transmission bandwidth can be obtained or mapped from the maximum channel bandwidth or mapped directly from the candidate SCS set. For an SCS, if the number of RBs corresponding to the maximum channel bandwidth of that carrier is greater than the maximum transmission bandwidth, the RB location can be configurable, where the transmission bandwidth and its location can be configured in terms of the number of RBs and a reference point, for example, a center frequency of a carrier frequency band.

[0096] Figure 5B is a 510 table showing an exemplary aspect of the mapping of maximum channel bandwidth and maximum transmission bandwidth of the basic SCS.

[0097] Figure 6A provides an exemplary table 600 for SCS and associated relationship with channel bandwidth based on maximum FFT size, where the maximum FFT size is 4096, but the same rule also applies to high FFT size. With the table in Figure 6A, given SCS and maximum FFT size, a transceiver can directly obtain the channel bandwidth. A benefit with such mapping is the ability to maintain scalable sampling rate with SCSs for different channel bandwidth for a given maximum FFT size.

[0098] Therefore, it is possible that the channel bandwidth (or range) is mapped from the SCS set based on the sampling rate or the maximum FFT size.

[0099] Alternatively, in other respects, it is also possible to choose a channel bandwidth for each set of SCS, where the same sampling rate can be maintained. Petition 870240098210, dated 11 / 18 / 2024, p. 46 / 108 31 / 41 through different SCS options in each SCS set.

[00100] Figure 6B provides an exemplary table 610 for the system channel bandwidth (i.e., sub-bands from a maximum channel bandwidth, such as 400 MHz), the usable channel bandwidth in a practical system, and the associated relationship with the usable SCS set, which can be a subset of the SCS set to obtain the maximum channel bandwidth and the maximum transmission bandwidth (i.e., where guide bands are excluded from the maximum channel bandwidth, if any). Data or control signaling can be transmitted with the usable SCS set in a practical system. With an available system channel bandwidth, it is possible to obtain a candidate usable SCS directly from the table shown in Figure 6B. In the current system with multiple usable SCS, up to 8 SCS types can be supported.Therefore, 3 bits are needed for each usable SCS, which requires three bits to indicate any of the SCS types. To reduce indication overhead, associating a subset of SCSs with a system channel bandwidth makes it possible to save signaling overhead to indicate a usable SCS associated with a system bandwidth; for example, two types of SCSs (60KHz and 120KHz) are associated with a system bandwidth of 100MHz, where one bit can be used to indicate a specific SCS in the parameter configuration.

[00101] The configuration of one or more channel bands and / or subcarrier spacing options for one or more UEs can be performed by different schemes, for example, broadcast channel, multicast and / or unicast; or semi-static (RRC signaling or with a CE MAC), dynamic signaling (e.g., L1 or DCI signaling) and / or a DL control channel, such as the group common PDCCH.

[00102] One aspect is that the system bandwidths Petition 870240098210, dated 11 / 18 / 2024, p. 47 / 108 32 / 41 employed in a network may have a scalability characteristic across a set of system bandwidths used in the network, where the scalability factor may be a positive integer. For example, the scalability factor may be 2n, with n being an integer; a set of system bandwidths may consist of 20MHz, 40MHz, 80MHz, 160MHz, and 320MHz, with a scalability factor of 2 starting from 20MHz, which is shown in Figure 6C.Although the system channel bandwidths are related to integer multiples, for each system channel bandwidth, each set of usable subcarrier spacings is configured to be associated with FFT sizes in such a way that the same sampling rate can be maintained across different usable SCS options; for example, for a system bandwidth of 80 MHz, its associated SCS set is configured as 30 kHz, 60 kHz, and 120 kHz, with FFT sizes of 4096, 2048, and 1024, respectively, which corresponds to the same sampling rate of 122.88 MHz. These characteristics are shown in Table 620 in Figure 6C.

[00103] The configuration of the system bandwidth(s), SCS(s) and FFT size(s) for one or more UEs can be performed by different schemes, for example, broadcast, multicast and / or single-channel broadcast; or semi-static (RRC signaling or with a CE MAC) and / or dynamic signaling (for example, L1 or DCI signaling).

[00104] In other respects, at least for the case of a single numerology, candidates for the maximum number of subcarriers per NR carrier is 3300 or 6600. For a given carrier bandwidth B and with a single numerology to be used, its SCS fm, chosen from a set of SCSs (e.g., 15, 30, 60, 120kHz, etc.) scalable with 15 kHz LTE, must satisfy the conditions: fm * 3300 (or fm * 6600) < B. On the other hand, for a given subcarrier spacing fn, Petition 870240098210, dated 11 / 18 / 2024, p. 48 / 108 33 / 41 The supported carrier bandwidth, Bn, for an NR carrier can be determined by the relation: Bn = fn * (3300 + a set of protection subcarriers); or Bn = fn * (6600 + a set of protection subcarriers), where the set of protection subcarriers is determined by factors such as the filtering waveform characteristics and the DC subcarrier component, etc.; for example, the set size may be 10% of Bn. Some examples of this aspect are given in Table 630 of Figure 6D. Note to Figure 6D: 1) Option 1 and Option 2 are based on different protection band factors, for example, Option 2 assumes 10% protection band as LTE; other options with different protection bands (including zero protection band) are also possible. 2) Bandwidths beyond 400MHz are not listed, as by standards, the maximum channel bandwidth supported by an NR carrier is 400 MHz.In Figure 6D, the '-' indicates that this combination is not supported.

[00105] In another aspect, for cases of mixed numerology, if the maximum number of subcarriers per NR carrier is 3300, and the multiplication of the subcarrier spacing fO and 3300 is not greater than the scalable carrier bandwidth, then fOe fO* 2ΛN (N > 0) could be used as the SCS for the scalable carrier band. This can be interpreted as follows: for a given carrier bandwidth, B1, and a set of SCSs associated with the carrier frequency band(s), the lowest SCS, fO, in the set of SCSs will satisfy the condition: fO * 3300 < B1, then the associated SCSs can be scaled up with fO, i.e., fO * 2ΛN (N> 0). For example, if a carrier bandwidth is 50MHz, fO can be 15kHz, and other SCSs applicable to the associated frequency carrier band(s) can be scalable upwards with 15kHz.If the maximum number of subcarriers per NR carrier is 6600, the statement above is also true, but it must be. Petition 870240098210, dated 11 / 18 / 2024, p. 49 / 108 34 / 41 to be associated with fO* 6600 < B2, where B2 is a given carrier bandwidth.

[00106] Figure 7 is a flowchart illustrating one embodiment of a 700 method for numerology determination for wireless communication systems. The 700 method begins at block 702, where the network component acquires a set of candidate subcarrier spacings. The set of subcarrier spacings can be acquired as described above with reference to Figures 4A-4C. At block 704, the network component determines a maximum channel bandwidth or maximum transmission bandwidth according to the number of subcarriers used, the number of resource blocks used, and / or the guideband in the channel bandwidth. At block 706, the network component determines a basic subcarrier spacing from the set of candidate subcarrier spacings. The basic subcarrier spacing can be determined as described above with reference to Figures 4A-4C.

[00107] Figure 8 is a block diagram of an 800 computing system that can be used to implement the devices and methods disclosed here. For example, the computing system can be any entity of UE, AN, MM, SM, UPGW, AS, BS, eNodeB, transmission-reception point (TRP), etc. Specific devices may utilize all the components shown or only a subset of the components, and levels of integration may vary from device to device. Furthermore, a device may contain multiple instances of a component, such as multiple processing units, processors, memories, transmitters, receivers, etc. Such a device can be any entity of UE, AN, MM, SM, UPGW, AS, BS, eNodeB, TRP (transmission-reception point), etc. The 800 computing system includes an 802 processing unit. The processing unit includes a processing unit. Petition 870240098210, dated 11 / 18 / 2024, pp. 50 / 108 35 / 41 central (CPU) 814, memory 808 and may also include a mass storage device 804, a video adapter 810, and an I / O interface 812 connected to a bus 820.

[00108] The 820 bus may be one or more of any type of multiple bus architectures, including a memory bus or memory controller, a peripheral bus, or a video bus. The 814 CPU may comprise any type of electronic data processor. The 808 memory may comprise any type of non-transient system memory such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), read-only memory (ROM), or a combination thereof. In one aspect, the 808 memory may include ROM for use in initialization and DRAM for program and data storage for use during program execution.

[00109] 804 mass storage may comprise any type of non-transient storage device configured to store data, programs, and other information and to make the data, programs, and other information accessible via the 820 bus. 804 mass storage may comprise, for example, one or more of a solid-state drive, hard disk drive, magnetic disk drive, or optical disk drive.

[00110] The video adapter 810 and the I / O interface 812 provide interfaces for connecting external input and output devices to the processing unit 802. As illustrated, examples of input and output devices include a monitor 818 connected to the video adapter 810 and a mouse / keyboard / printer 816 connected to the I / O interface 812. Other devices can be connected to the processing unit 802, and more or less interface cards can be used. For example, a serial interface such as Universal Serial Bus (USB) (not shown) can be used to provide a Petition 870240098210, dated 11 / 18 / 2024, page 51 / 108 36 / 41 interface for an external device.

[00111] The 802 processing unit also includes one or more 806 network interfaces, which may comprise wired links, such as an Ethernet cable, and / or wireless links to access different nodes or networks. The 806 network interfaces allow the 802 processing unit to communicate with remote units across networks. For example, the 806 network interfaces may provide wireless communication through one or more transmitters / transmitting antennas and one or more receivers / receiving antennas. In one aspect, the 802 processing unit is coupled to an 822 local area network or a wide area network for data processing and communications with remote devices, such as other processing units, the Internet, or remote storage facilities.

[00112] Figure 9 presents an exemplary device for implementing the previous aspect. A device 900 includes an acquisition module 910 and a determination module 920. The acquisition module 910 is applied to acquire the SCS set or system bandwidth. The determination module 920 is applied to determine the maximum channel bandwidth and / or the maximum transmission bandwidth.

[00113] In one embodiment, a method for determining a system numerology includes acquiring, by a computing system, a set of candidate subcarrier spacings. The method also includes determining, by the computing system, a maximum channel bandwidth or a maximum transmission bandwidth.

[00114] In one aspect, the method also includes, before determining the maximum channel bandwidth or the maximum transmission bandwidth, determining, by the computing system, a basic subcarrier spacing in the set of candidate subcarrier spacings.

[00115] In one aspect, the transmission bandwidth Petition 870240098210, dated 11 / 18 / 2024, page 52 / 108 The maximum 37 / 41 is determined by the computing system according to the maximum channel bandwidth.

[00116] In one aspect, the maximum channel bandwidth is determined, by the computing system, according to a maximum Fast Fourier Transform (FFT) size.

[00117] In one aspect, the method also includes acquiring, by the computing system, a set of usable subcarrier spacings from the set of subcarrier spacings according to a system channel bandwidth.

[00118] In one embodiment, a wireless device for encoding data with a polar code includes a processor and a computer-readable storage medium. The computer-readable storage medium stores the programming for execution by the processor. The programming includes instructions for acquiring a set of candidate subcarrier spacings. The programming also includes instructions for determining a maximum channel bandwidth or a maximum transmission bandwidth.

[00119] In one aspect, the programming also includes instructions for, before determining the maximum channel bandwidth or the maximum transmission bandwidth, determining a basic subcarrier spacing in the set of candidate subcarrier spacings.

[00120] In one aspect, the maximum transmission bandwidth is determined according to the maximum channel bandwidth.

[00121] In one aspect, the maximum channel bandwidth is determined according to a maximum Fast Fourier Transform (FFT) size.

[00122] In one aspect, the programming also includes instructions for acquiring a set of usable subcarrier spacings from the set of spacings of Petition 870240098210, dated 11 / 18 / 2024, page 53 / 108 38 / 41 subcarrier candidate according to a system channel bandwidth.

[00123] In one embodiment, a method includes providing an OFDM numerology scheme in a communications system allowing for one or more of multiple subcarrier spacing options, multiple transmission TTI options, multiple CP options, multiple carrier bandwidth options, or multiple FFT sizes.

[00124] In one embodiment, a communications device includes a non-transient memory store comprising instructions and one or more processors communicating with the memory. The one or more processors execute the instructions to provide an OFDM numerology scheme in a communications system allowing one or more multiple subcarrier spacing options, multiple transmission TTI options, multiple CP options, multiple carrier bandwidth options, or multiple FFT sizes.

[00125] In one embodiment, a method on a network component for determining a system numerology includes acquiring, by the network component, a set of candidate subcarrier spacings. The method also includes determining, by the network component, a maximum channel bandwidth or a maximum transmission bandwidth.

[00126] In one embodiment, a wireless device for encoding data with a polar code, a processor, and a computer-readable storage medium storing programming for execution by the processor. The programming includes instructions for acquiring a set of candidate subcarrier spacings. The programming also includes instructions for determining a maximum channel bandwidth or a maximum transmission bandwidth.

[00127] In one embodiment, a non-transient, computer-readable medium is provided for storing computer instructions. Petition 870240098210, dated 11 / 18 / 2024, page 54 / 108 39 / 41 to instruct a wireless device to encode data with a polar code. When executed by one or more processors, programming causes one or more processors to perform the acquisition of a set of candidate subcarrier spacings. When executed by one or more processors, programming also causes one or more processors to perform the determination of a maximum channel bandwidth or a maximum transmission bandwidth.

[00128] In one or more aspects, the method includes, before determining the maximum channel bandwidth or the maximum transmission bandwidth, determining, by the network component, a basic subcarrier spacing in the set of candidate subcarrier spacings.

[00129] In one or more aspects, the maximum transmission bandwidth is determined, by the network component, according to the maximum channel bandwidth.

[00130] In one or more aspects, the maximum channel bandwidth is determined, by the network component, according to a maximum Fast Fourier Transform (FFT) size.

[00131] In one or more aspects, the method also includes acquiring, by the network component, a usable subcarrier spacing set from the subcarrier spacing set according to a system channel bandwidth.

[00132] In one or more aspects, the location of transmission bandwidth in the channel bandwidth is determined according to a number of resource blocks (RBs) and a reference point, where the reference point can be a center frequency of a carrier or the location of a guideband in the channel bandwidth.

[00133] In one or more respects, each set of usable subcarrier spacings is associated with FFT sizes such that the same sampling rate is maintained across Petition 870240098210, dated 11 / 18 / 2024, page 55 / 108 40 / 41 different scalable subcarrier spacing (SCS) options available.

[00134] It should be appreciated that one or more steps of the methods of the modalities provided herein may be performed by corresponding units or modules. For example, a signal may be transmitted by a transmission unit or by a transmission module. A signal may be received by a reception unit or by a reception module. A signal may be processed by a processing unit or by a processing module.Other steps may be performed by a determination unit / module to determine one or more subcarrier spacing options from a set of candidate subcarrier spacings that is associated with a carrier frequency band, determine one or more selected channel bandwidths from a set of channel bandwidths, or determine a basic subcarrier spacing in the set of candidate subcarrier spacings and an acquisition unit / module to acquire a usable set of subcarrier spacings from the set of subcarrier spacings according to a carrier frequency band. The respective units / modules may be hardware, software, or a combination thereof. For example, one or more of the units / modules may be an integrated circuit, such as field-programmable gate arrays (FPGAs) or application-specific integrated circuits (ASICs).

[00135] The preceding description of some embodiments is provided to enable anyone skilled in the art to make or use a processor-readable apparatus, method, or means in accordance with this disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles of the methods and devices described herein may be applied to other embodiments. Thus, this disclosure is not intended Petition 870240098210, dated 11 / 18 / 2024, pp. 56 / 108 41 / 41 to be limited to the modalities shown here, but must be consistent with the broader scope consistent with the innovative principles and resources described herein. Petition 870240098210, dated 11 / 18 / 2024, pp. 57 / 108

Claims

1 / 4 CLAIMS 1. Method at a base station, the method characterized by: determining, by the base station, one or more subcarrier spacing options from a first set of candidate subcarrier spacings that is associated with a carrier frequency band;and transmit, through the base station, to a user's equipment a signal indicating one or more subcarrier spacing options from the first set of candidate subcarrier spacings from multiple sets of candidate subcarrier spacings, wherein each set of candidate subcarrier spacings from the multiple sets of subcarrier spacings is associated with a carrier frequency band and a maximum channel bandwidth, and wherein the first set of candidate subcarrier spacings comprises subcarrier spacings of 15 kHz, 30 kHz and 60 kHz and the first set of candidate subcarrier spacings is associated with a carrier frequency sub-band of 6 GHz and a maximum channel bandwidth of 100 MHz.

2. A method according to claim 1, characterized in that the multiple sets of candidate subcarrier spacings comprise a second set of candidate subcarrier spacings associated with a carrier frequency band above 6 GHz and a maximum channel bandwidth of 400 MHz.

3. A method according to claim 1 or 2, characterized in that each candidate set of subcarrier spacings from the multiple sets of subcarrier spacings is further associated with a maximum transmission bandwidth.

4. Method, according to any one of claims 1 to 3, characterized in that each set of candidate subcarrier spacings from the multiple sets of candidate subcarrier spacings comprises a usable subset of subcarrier spacings from each set of candidate subcarrier spacings from the multiple sets of candidate subcarrier spacings, and the usable subset of subcarrier spacings has a predefined relationship with the carrier frequency band and the maximum channel bandwidth.

5. A method according to claim 4, characterized in that the subset of usable subcarrier spacings is associated with Fast Fourier Transform (FFT) sizes, such that the same sampling rate is maintained across different subcarrier spacing options applicable to a channel bandwidth.

6. A method, according to any one of claims 1 to 5, characterized in that the signal transmission comprises at least one of: transmitting semi-static signaling; transmitting dynamic signaling; transmitting a radio resource control signal, RRC; transmitting a layer 1 signal, L1; transmitting a broadcast message; transmitting a multi-broadcast message; and transmitting a uni-broadcast message.

7. Base station, characterized by: a processor; and a computer-readable storage medium storing instructions for execution by the processor, the instructions to implement a method as defined in any one of claims 1 to 6.

8. Method in a user device, the method characterized by: receiving from a base station, by the user device, a signal indicating one or more subcarrier spacing options from a first set of candidate subcarrier spacings from multiple sets of Petition 870240098210, dated 11 / 18 / 2024, page 1.59 / 108 3 / 4 subcarrier candidates, as one or more subcarrier spacing options determined from the first set of candidate subcarrier spacings, wherein each set of candidate subcarrier spacings from the multiple sets of subcarrier spacings is associated with a carrier frequency band and a maximum channel bandwidth, and wherein the first set of candidate subcarrier spacings comprises subcarrier spacings of 15 kHz, 30 kHz and 60 kHz, and the first set of candidate subcarrier spacings is associated with a carrier frequency sub-band of 6 GHz and a maximum channel bandwidth of 100 MHz.

9. A method according to claim 8, characterized in that the multiple sets of candidate subcarrier spacings comprise a second set of candidate subcarrier spacings associated with a carrier frequency band above 6 GHz and a maximum channel bandwidth of 400 MHz.

10. A method according to claim 8 or 9, characterized in that each candidate set of subcarrier spacings from the multiple sets of subcarrier spacings is further associated with a maximum transmission bandwidth.

11. A method according to any one of claims 8 to 10, characterized in that each set of candidate subcarrier spacings from the multiple sets of candidate subcarrier spacings comprises a usable subset of subcarrier spacings from each set of candidate subcarrier spacings from the multiple sets of candidate subcarrier spacings, and the usable subset of subcarrier spacings has a predefined relationship with the carrier frequency band and the maximum channel bandwidth. Petition 870240098210, dated 11 / 18 / 2024, pp. 60 / 108 4 / 4 12. Method according to claim 11, characterized in that the subset of usable subcarrier spacings is associated with Fast Fourier Transform (FFT) sizes, such that the same sampling rate is maintained across different subcarrier spacing options applicable to a channel bandwidth.

13. A method, according to any one of claims 8 to 12, characterized in that the signal reception comprises at least one of: receiving semi-static signaling; receiving dynamic signaling; receiving a radio resource control signal, RRC; receiving a layer 1 signal, L1; receiving a broadcast message; receiving a multicast message; and receiving a unicast message.

14. User equipment, characterized by: a processor; and a computer-readable storage medium storing instructions for execution by the processor, the instructions for implementing a method as defined in any one of claims 8 to 13. Petition 870240098210, dated 11 / 18 / 2024, pp. 61 / 108

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