Tone reservation for reduced peak-to-average power ratio

Abstract

Various aspects of the present disclosure relate generally to wireless communications. In some aspects, a user device may: receive a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones comprising a data tone subset of a plurality of data tones and a PRT subset of a plurality of peak reduction tones (PRTs), wherein the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth, wherein the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; and send a data transmission using a waveform based at least in part on the resource allocation. Numerous other aspects are provided.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 019,808, filed on May 4, 2020, entitled “TONE RESERVATION FOR PEAK TOAVERAGE POWER RATIO REDUCTION,” and U.S. Non-Provisional Patent Application No. 17 / 306,755, filed on May 3, 2021, entitled “TONE RESERVATION FOR PEAK TOAVERAGE POWER RATIO REDUCTION,” each of which is expressly incorporated herein by reference. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for tone reservation to reduce peak-to-average power ratio. Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard released by the Third Generation Partnership Project (3GPP).

[0005] A wireless network may include multiple base stations (BSs) that may support communications for multiple user equipments (UEs). A UE may communicate with a BS via a downlink and an uplink. A "downlink" (or "forward link") refers to a communication link from a BS to a UE, and an "uplink" (or "reverse link") refers to a communication link from a UE to a BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, Access Point (AP), Radio Head, Transmit Receive Point (TRP), New Radio (NR) BS, 5G Node B, etc.

[0006] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate at a city, country, region, and even global level. NR, which can also be referred to as 5G, is a set of enhancements to the LTE mobile standard released by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, better integrating with orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful. Summary of the invention

[0007] In some aspects, a wireless communication method performed by a user equipment (UE) may include: receiving a resource allocation indicating multiple transmission tones, the multiple transmission tones including a data tone subset of multiple data tones and a PRT subset of multiple peak reduction tones (PRTs), wherein the resource allocation indicates multiple data tone positions and multiple PRT positions within a specific bandwidth, wherein the PRT position subset of the multiple PRT positions is arranged relative to the data tone position subset of the multiple data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; and sending a data transmission using a waveform based at least in part on the resource allocation.

[0008] In some aspects, a wireless communication method performed by a base station may include: sending a resource allocation indicating multiple transmission tones, the multiple transmission tones including a data tone subset of multiple data tones and a PRT subset of multiple PRTs, wherein the resource allocation indicates multiple data tone positions and multiple PRT positions within a specific bandwidth, wherein the PRT position subset of the multiple PRT positions is arranged relative to the data tone position subset of the multiple data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; and receiving a data transmission including a waveform based at least in part on the resource allocation.

[0009] In some aspects, a UE for wireless communication may include: a memory; one or more processors operably coupled to the memory; and instructions stored in the memory. When executed by the one or more processors, the instructions in the memory may be operable to cause the UE to: receive a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones including a data tone subset of a plurality of data tones and a PRT subset of a plurality of PRTs, wherein the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth, wherein the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; and send a data transmission using a waveform based at least in part on the resource allocation.

[0010] A base station for wireless communication may include: a memory; one or more processors operably coupled to the memory; and instructions stored in the memory. When executed by the one or more processors, the instructions in the memory may be operable to cause the base station to: send a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones including a data tone subset of a plurality of data tones and a PRT subset of a plurality of PRTs, wherein the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth, wherein the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; and receive a data transmission including a waveform based at least in part on the resource allocation.

[0011] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication, which, when executed by one or more processors of a UE, may cause the UE to: receive a resource allocation indicating multiple transmission tones, the multiple transmission tones including a data tone subset of multiple data tones and a PRT subset of multiple PRTs, wherein the resource allocation indicates multiple data tone positions and multiple PRT positions within a particular bandwidth, wherein the PRT position subset of the multiple PRT positions is arranged relative to the data tone position subset of the multiple data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; and send a data transmission using a waveform based at least in part on the resource allocation.

[0012] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication that, when executed by one or more processors of a base station, may cause the base station to: send a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones comprising a data tone subset of a plurality of data tones and a PRT subset of a plurality of PRTs, wherein the resource allocation indicates a plurality of data tone positions within a particular bandwidth, wherein the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth, wherein the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; and receive a data transmission comprising a waveform based at least in part on the resource allocation.

[0013] In some aspects, an apparatus for wireless communication may include: components for receiving a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones including a data tone subset of a plurality of data tones and a PRT subset of a plurality of PRTs, wherein the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth, wherein the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; and components for sending a data transmission using a waveform based at least in part on the resource allocation.

[0014] In some aspects, an apparatus for wireless communication may include: components for sending a resource allocation indicating multiple transmission tones, the multiple transmission tones including a data tone subset of multiple data tones and a PRT subset of multiple PRTs, wherein the resource allocation indicates multiple data tone positions and multiple PRT positions within a particular bandwidth, wherein the PRT position subset of the multiple PRT positions is arranged relative to the data tone position subset of the multiple data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; and components for receiving a data transmission including a waveform based at least in part on the resource allocation.

[0015] Aspects generally include a method, apparatus, system, computer program product, non-transitory computer readable medium, user equipment, base station, wireless communication device, and processing system as generally described herein with reference to and as illustrated in the accompanying drawings and description.

[0016] The foregoing has outlined rather broadly the features and technical advantages of examples according to the present disclosure so that the following detailed description may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The features of the concepts disclosed herein, their organization and methods of operation, and related advantages may be better understood through the following description when considered in conjunction with the accompanying drawings. Each of the accompanying drawings is provided for the purpose of illustration and description and not as a definition of limitations to the claims.

[0017] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such various aspects can be implemented in many different arrangements and scenarios. The timely described herein can be implemented by using many different platform types, devices, systems, shapes, sizes and packaging arrangements. For example, some aspects can be implemented by integrated chip embodiments and other devices based on non-module components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / purchasing devices, medical devices, devices supporting artificial intelligence). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components or system-level components. The device in combination with the various aspects and features described may include additional components and features for the specific implementation and practice of the various aspects claimed and described. For example, the transmission and reception of wireless signals may include several components for analog and digital purposes (e.g., hardware components, including antennas, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders or summers). It is intended that the various aspects described herein can be practiced in various devices, components, systems, distributed arrangements, end-user devices, etc. with various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order that the above-mentioned features of the present disclosure may be understood in detail, the contents briefly summarized above may be described in more detail by reference to various aspects, some of which are shown in the accompanying drawings. However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and therefore should not be considered as limiting the scope thereof, as the description may allow for other equivalent aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0019] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0020] Figure 2 is a diagram illustrating an example of a base station communicating with a UE in a wireless network according to the present disclosure.

[0021] Figure 3 is a diagram illustrating an example of tone reservation for reducing peak-to-average power ratio in accordance with various aspects of the present disclosure.

[0022] Figure 4 is a diagram illustrating an exemplary process, for example, performed by a user equipment, according to various aspects of the present disclosure.

[0023] Figure 5 is a diagram illustrating an exemplary process, for example, performed by a base station, according to various aspects of the present disclosure. DETAILED DESCRIPTION

[0024] Typical methods of peak reduction tone (PRT) selection using orthogonal frequency division multiplexing (OFDM) signals to reduce the peak-to-average power ratio (PAPR) in the power amplifier of the UE may introduce unnecessary processing, which may reduce performance. In addition, the base station may not know the selection of the PRT, so it is necessary to send a signal to the base station to facilitate decoding by the base station, thereby increasing signaling overhead. Various aspects of the technology and apparatus described herein can facilitate PRT reservation to reduce the PAPR of the power amplifier in the UE. In some aspects, the tone reservation technology described herein can facilitate PRT position determination based on established patterns, sequences, tables, etc. In some aspects, the PRT sequence can correspond to an allocated set of frequency resources. The base station can indicate the PRT sequence to the UE. In this way, the PRT position can be determined without the need to optimize the random PRT index selection in real time, thereby reducing the complexity of the transmitter operation. This can be beneficial to saving power and time during transmission, thereby improving performance, reducing computational burden, etc.

[0025] Various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be implemented in many different forms and should not be interpreted as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. Based on the teachings herein, it should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether the aspect of the present disclosure is implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein can be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method, that is, the device or method is practiced using other structures, functions, or structures and functions other than the various aspects of the present disclosure set forth herein or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be implemented by one or more elements of the claims.

[0026] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0027] It should be noted that while various aspects may be described herein using terminology generally associated with 5G or NR radio access technologies (RATs), various aspects of the present disclosure may be applied to other RATs, such as 3G RATs, 4G RATs, and / or RATs beyond 5G (e.g., 6G).

[0028] Figure 1 is a diagram showing an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, etc. The wireless network 100 may include a plurality of base stations 110 (shown as BS110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of ​​a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0029] A BS may provide communication coverage for macro cells, pico cells, femto cells, and / or other types of cells. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access to UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access to UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access to UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1In the example shown, BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "Node B", "5G NB", and "cell" may be used interchangeably herein.

[0030] In some aspects, the cell may not necessarily be fixed, and the geographic area of ​​the cell may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (such as direct physical connections, virtual networks, etc.) using any suitable transport network.

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

[0032] The wireless network 100 may be a heterogeneous network including different types of BSs, such as a macro BS, a pico BS, a femto BS, a relay BS, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a higher transmit power level (e.g., 5 watts to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 watt to 2 watts).

[0033] The network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly via a wireless or wired backhaul.

[0034] UE 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be fixed or mobile. UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or instrument, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or satellite radio, etc.), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing device, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0035] Some UEs may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors and / or location tags that can communicate with a base station, another device (e.g., a remote device) or some other entity. A wireless node may provide, for example, a connection to or to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as customer premises equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120 (such as a processor component and / or a memory component). In some aspects, a processor component and a memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled and / or electrically coupled, etc.

[0036] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0037] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary to communicate with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocol (e.g., which may include vehicle-to-vehicle (V2V) protocol or vehicle-to-infrastructure (V2I) protocol) and / or mesh network. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0038] The devices of the wireless network 100 can communicate using an electromagnetic spectrum, which can be subdivided into various categories, frequency bands, channels, etc. based on frequency or wavelength. For example, the devices of the wireless network 100 can communicate using an operating frequency band having a first frequency range (FR1), which can range from 410 MHz to 7.125 GHz, and / or can communicate using an operating frequency band having a second frequency range (FR2), which can range from 24.25 GHz to 52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as a "sub-6 GHz" band. Similarly, FR2 is often referred to as a "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) recognized as a "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, if used herein, unless otherwise explicitly stated, it should be understood that the term "sub-6 GHz" and the like can broadly represent frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, if used herein, unless otherwise expressly stated, it should be understood that the term "millimeter wave" or the like can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0039] As pointed out above, Figure 1 are provided as examples. Other examples may be related to Figure 1 Different than described.

[0040] Figure 2is a diagram illustrating an example 200 of a base station 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The base station 110 may be equipped with T antennas 234a through 234t, and the UE 120 may be equipped with R antennas 252a through 252r, where in general T≥1 and R≥1.

[0041] At the base station 110, 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 based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling) 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) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). If applicable, a transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, and may provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process a corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.

[0042] At the UE 120, antennas 252a to 252r may receive downlink signals from the base station 110 and / or other base stations, and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a channel quality indicator (CQI) parameter, etc. In some aspects, one or more components of the UE 120 may be included in the housing 284.

[0043] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.

[0044] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include, or may be included in, one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, etc. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements coupled to one or more transmit and / or receive components, such as Figure 2 One or more components of a

[0045] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI) from a controller / processor 280. The transmit processor 264 may also generate reference symbols for one or more reference signals. If applicable, the symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of the UE 120 may be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antenna 252, modulator and / or demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein (e.g., as described in reference to Figures 3 to 5 described above).

[0046] At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule the UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included in a modem of the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receive processors 238, transmit processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein (e.g., as described in reference to Figures 3 to 5 described above).

[0047] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other components of the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the can perform or direct e.g. Figure 4 The process of 400 Figure 5 The operations of process 500 and / or other processes described herein may be performed. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly executed, or executed after compilation, conversion and / or interpretation), the one or more instructions may cause one or more processors, UE 120 and / or base station 110 to perform or direct, for example, Figure 4 The process of 400 Figure 5 The operations of process 500 and / or other processes described herein. In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0048] When executed by the processor 280 and / or other processors and modules at the UE 120, the stored program code may cause the UE 120 to perform operations related to Figure 4 The stored program code, when executed by the processor 240 and / or other processors and modules at the base station 110, may cause the base station 110 to perform operations related to Figure 5 The operations described by process 500 in and / or other processes described herein. Scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0049] In some aspects, UE 120 may include: means for receiving a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones including a data tone subset of a plurality of data tones and a PRT subset of a plurality of peak reducing tones (PRTs), wherein the resource allocation indicates a plurality of data tone locations and a plurality of PRT locations within a particular bandwidth, wherein the PRT location subset of the plurality of PRT locations is arranged relative to the data tone location subset of the plurality of data tone locations according to a PRT sequence corresponding to an allocated set of frequency resources; means for sending a data transmission using a waveform based at least in part on the resource allocation; and the like. In some aspects, such means may include in conjunction with Figure 2 One or more components of the UE 120.

[0050] In some aspects, base station 110 may include: means for transmitting a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones including a data tone subset of a plurality of data tones and a PRT subset of a plurality of PRTs, wherein the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth, wherein the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; means for receiving a data transmission including a waveform based at least in part on the resource allocation; and the like. In some aspects, such means may include in conjunction with Figure 2 One or more components of the base station 110.

[0051] Although Figure 2 The blocks in the 200 and 210 are shown as distinct components, but the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0052] As pointed out above, Figure 2 are provided as examples. Other examples may be related to Figure 2 Different than described.

[0053] Commercial power amplifiers often have nonlinear behavior if operated at high input power. This nonlinearity can cause in-band and out-of-band distortion of the signal, as well as degradation of the error vector magnitude (EVM) at the signal receiver. To avoid nonlinearity, the power amplifier can be operated at an average input power a few dB below the saturation point. By determining the input power that keeps the peak-to-average power ratio (PAPR) of the signal below a certain level, the appropriate power level can be determined.

[0054] It is well known that Orthogonal Frequency Division Multiplexing (OFDM) signals suffer from significant PAPR, which grows rapidly with the size of the frequency block. 5G NR was developed to support higher data rates than LTE. Therefore, the 5G NR OFDM block size may be larger than the LTE block size, further increasing the PAPR of the signal. Some PAPR reduction techniques may be data dependent and computationally expensive, thus making them unsuitable for real-time implementation in the context of a 5G NR transmitter. Therefore, clipping and filtering (CF) is often used in the industry. CF causes in-band distortion and typically does not converge to an ideal solution.

[0055] 5GNR provides abundant bandwidth in both uplink and downlink. This is because of the addition of frequency range 2 (FR2) in 5G NR and the increase in available bandwidth to 100MHz in the Sub-6GHz frequency range. This excess bandwidth can be partially utilized by using longer OFDM symbols, further improving the PAPR of OFDM. The excess bandwidth can also be used to reduce PAPR through a technique called tone reservation.

[0056] Tone reservation can allow a transmitter to utilize some otherwise idle tones to reduce the PAPR of an OFDM signal. The amplitude and phase of the reserved tones can be optimized for a given OFDM symbol to minimize the PAPR of the associated signal. In some cases, there may be no overlap between the data tones and the reserved tones. In this way, tone reservation can be used without introducing any EVM or adjacent channel leakage rate. The receiver can simply ignore the portion of the signal associated with the reserved tones and decode only the portion of the signal associated with the data tones.

[0057] Tone reservation can be performed by determining a PRT that is configured to reduce the peak value of the resulting OFDM signal so that the PAPR of the resulting signal meets a threshold. The PRT can be generated using a signal-to-clipping noise ratio tone reservation (sCR-TR) algorithm. The SCR-TR algorithm can be used to optimize the values ​​of the PRT tones based at least in part on their locations.

[0058] A UE may be allocated a plurality of N transmission tones with corresponding plurality of tone position indices {1, ..., N}. If Φ is a subset of {1, ..., N} corresponding to the PRT positions, the remaining transmission tone positions may be allocated to data tones with a subset of tone position indices {1, ..., N}\Φ. The frequency domain kernel P i can be constructed so that:

[0059]

[0060] And p = iDFT(P). X can be frequency domain data. Therefore, if i∈Φ and x = iDFT(X), then X i =0.

[0061] According to the SCR-TR algorithm, the location of the maximum peak of x is identified and its index is denoted by j∈[LN], where L is the oversampling factor. SCR-TR consists of a cyclic shift p, p j = circshift(p, j) so that the peaks are aligned. SCR-TR also includes subtracting the scaled and shifted p from x to obtain:

[0062]

[0063] where μ is the target peak, and <x(j) is the phase of x(j), This process is iterated several times to reduce several peaks. If the number of reserved tones is large enough and the positions are selected correctly, the time-domain kernel p looks like a narrow delta. Additionally, a cyclic shift of p in the time domain does not affect the position of the PRT in the frequency domain, only interfering with its phase.

[0064] In some cases, PRT position selection can be performed by randomly selecting multiple PRT indices representing the PRT positions, generating an OFDM signal based on the PRT and data tones, and determining whether the PAPR of the resulting signal meets the PAPR threshold. However, due to the randomness of the PRT selection for each iteration, these methods may introduce unnecessary processing, thus reducing performance. Additionally, the base station may not know the selection of the PRT, so a signal needs to be sent to the base station to facilitate decoding by the base station, thereby increasing signaling overhead.

[0065] Aspects of the techniques and apparatus described herein can facilitate PRT reservation to reduce the PAPR of power amplifiers in a UE. In some aspects, the tone reservation techniques described herein can facilitate PRT position determination based on established patterns, sequences, tables, etc. In this way, the PRT position can be determined without the need for real-time optimization of random PRT index selection, thereby reducing the complexity of transmitter operation. This can be beneficial for saving power and time during transmission, thus improving performance, reducing the computational burden, etc.

[0066] In some aspects, the base station can allocate multiple transmission tones including multiple data tones and multiple PRTs to the UE. The multiple transmission tones can indicate multiple PRT positions arranged relative to the multiple data tone positions according to a PRT sequence associated with a specific frequency-domain allocation. In some aspects, a standard PRT sequence can be used for all resource allocations, and the base station can indicate the PRT sequence to the UE, and the UE can shift the PRT sequence in the frequency domain to align with the resource allocation. In this way, aspects of the techniques described herein provide a simple PRT selection that facilitates the determination of the PRT position while having little processing overhead, signaling overhead, etc. In some aspects, different PRT patterns can be associated with different resource allocation bandwidths, PAPR levels, amounts of data to be transmitted, etc. In this way, the PRT allocation can be at least partially based on the characteristics of the UE and / or the transmission, which can be beneficial for more efficient use of resources.

[0067] Figure 3 is a diagram of an example 300 of tone reservation for reducing the peak-to-average power ratio according to various aspects of the present disclosure. As shown, the base station 110 and the UE 120 can communicate with each other.

[0068] As shown in reference numeral 302, the base station 110 may send a resource allocation and the UE 120 may receive the resource allocation. In some aspects, the resource allocation may be carried in a downlink control information (DCI), a radio resource control (RRC) message, a medium access control (MAC) control element (CE), etc. The resource allocation may indicate a set of transmission tones 304, 306, or 308. The set of transmission tones 304, 306, or 308 may include a plurality of data tones 310 (shown by the longer vertical bars) and a plurality of PRTs 312 (represented by the shorter vertical bars). The resource allocation may indicate a plurality of data tone locations 314 within a particular bandwidth (shown as "BW"). The resource allocation may indicate a plurality of PRT locations 316 within a particular bandwidth.

[0069] In some aspects, as shown in conjunction with the set of transmission tones 304, the plurality of PRT positions 316 may be arranged relative to the plurality of data tone positions 314 according to a PRT sequence 318, 320, 322, or 324. In some aspects, the plurality of PRT positions 316 may be arranged relative to the plurality of data tone positions 314 according to a PRT sequence 318, 320, 322, or 324 corresponding to a set of allocated frequency resources. In some aspects, the allocated frequency resources may include a set of RBs allocated to the UE 120, a frequency range allocated to the UE 120, and the like.

[0070] In some aspects, the PRT sequences 318, 320, 322, or 324 may include shifted versions of the PRT pattern, where the PRT pattern corresponds to additional multiple allocated frequency resources. For example, as shown, each of the PRT sequences 318, 320, 322, and 324 is a shifted version of the same PRT pattern. In this way, multiple UEs 120 can use the same PRT pattern, shifted in the frequency domain to align with the corresponding frequency resource allocations.

[0071] In some aspects, the resource allocation may indicate the PRT sequence 318, 320, 322, or 324 by indicating a deterministic function for determining the PRT sequence 318, 320, 322, or 324. In some aspects, the deterministic function may include a pseudo-random number generator to generate the PRT sequence 318, 320, 322, or 324. The pseudo-random number generator may be based at least in part on a seed. In some aspects, the resource allocation may indicate a seed. In some aspects, the resource allocation may indicate the PRT sequence 318, 320, 322, or 324 by indicating an index corresponding to the PRT sequence 318, 320, 322, or 324. In some aspects, the resource allocation may indicate the PRT sequence 318, 320, 322, or 324 by including a reference to a PRT table (PRTT).

[0072] In some aspects, the allocated set of frequency resources may include a set of resource blocks (RBs), and the UE 120 may determine the PRT sequence 318, 320, 322, or 324 based at least in part on the set of RBs using the PRTT. In some aspects, the PRTT may include multiple entries. An entry in the multiple entries may include a PRT sequence 318, 320, 322, or 324 corresponding to the set of RBs, additional PRT sequences 318, 320, 322, or 324 corresponding to additional sets of RBs, one or more parameters of a deterministic function for determining the PRT sequence 318, 320, 322, or 324, and the like.

[0073] As shown in conjunction with the set of transmission tones 306, the PRT sequence 326, 328, and / or 330 may be determined based at least in part on the number of RBs associated with the allocated set of frequency resources, the PRT usage rate, etc. In some aspects, the resource allocation may indicate the PRT sequence by including a reference to the PRTT, and the UE 120 may determine the PRT sequence 326, 328, or 330 based at least in part on the PRT usage rate corresponding to the resource allocation using the PRTT.

[0074] In some aspects, the PRT usage rate may include a ratio of the number of PRTs in the subset of PRTs 312 to the number of data tones in the subset of data tones 310. In some aspects, the PRT usage rate may be based at least in part on an amount of data to be sent by the UE in a data transmission, a PAPR associated with the UE, etc. In some aspects, the PRT usage rate may be based at least in part on an amount of data to be sent by the UE in a data transmission that satisfies a data amount threshold, a PAPR associated with the UE 120 that satisfies a PAPR threshold, etc.

[0075] In some aspects, the PRTT may include a first entry corresponding to a PRT sequence 326. The first entry may be associated with a first PRT usage rate range that includes PRT usage rates. A second entry may correspond to an additional PRT sequence 328 that is different from the PRT sequence 326. In some aspects, the second entry may be associated with a second PRT usage rate range that includes additional PRT usage rates.

[0076] In some aspects, the amount of data that UE 120 will send in a data transmission may be greater than the amount of data that another UE 120 will send in another data transmission. The usage rate of the PRT may be less than the additional PRT usage rate. In some aspects, the first PAPR associated with UE 120 may be greater than the second PAPR associated with the additional UE 120. In some aspects, the usage rate of the PRT may be greater than the additional PRT usage rate. The PRT usage rate may be set according to any number of different factors. For example, a cell edge UE 120 may need to transmit at high power so that the base station 110 receives the transmission. In this case, a larger PRT usage rate may help UE 120 further reduce its PAPR, which may allow UE 120 to transmit at higher power without causing significant distortion and / or out-of-band emissions. Since there are many available idle RBs in the uplink, a larger PRT usage rate may also be allocated to a given UE 120.

[0077] For example, as shown, the first PRT sequence 326 can be associated with a frequency allocation of one RB, the second PRT sequence 328 can be associated with a frequency allocation of two RBs, and the third PRT sequence 330 can be associated with a frequency allocation of one RB. In some aspects, the first sequence 326 and the third PRT sequence 330 can be based on the same PRT pattern.

[0078] In some aspects, the allocated set of frequency resources may include a set of RBs, and the UE 120 may determine a PRT sequence 326, 328, or 330 based at least in part on the number of RBs in the set of RBs using the PRTT. The PRTT may include a first entry corresponding to a first PRT sequence 326. In some aspects, the first entry may be associated with a first number of RBs, the second entry may be associated with an additional PRT sequence 328 different from the first PRT sequence 326, and the second entry may be associated with a second number of RBs.

[0079] As shown in conjunction with the set of transmission tones 308, in some aspects, a subset 332 or 334 of the PRT 312 can be associated with multiple resource allocations corresponding to multiple UEs 120. For example, as shown, a first subset 332 of the PRT 312 can be associated with a first resource allocation 336 and a second resource allocation 338. Similarly, as shown, a second subset 334 of the PRT 312 can be associated with a second resource allocation 338 and a third resource allocation 340. In some aspects, the first resource allocation 336 and the second resource allocation 338 are adjacent to each other in the frequency domain, and the second resource allocation and the third resource allocation are adjacent to each other in the frequency domain. In some aspects, the subset 332 of the PRT 312 can correspond to a sideband associated with a UE associated with the resource allocation 336, a sideband associated with a UE associated with the resource allocation 338, etc.

[0080] In some aspects, base station 110 may send, and UE 120 may receive, a rate matching indication that indicates one or more resources associated with a subset of PRTs 312 around which to rate match. In some aspects, sending a data transmission may include rate matching around the one or more resources based at least in part on the rate matching indication. In some aspects, the one or more resources are associated with one or more power constraints corresponding to another UE 120. The data transmission may be sent based at least in part on a condition that the subset of PRTs 312 does not overlap with the subset of data tones 310. In some aspects, the condition may be based at least in part on a failure to receive the rate matching indication.

[0081] As shown in reference numeral 342, UE 120 may generate a waveform based at least in part on the resource allocation. In some aspects, UE 120 may generate a waveform by determining an inverse discrete Fourier transform of a plurality of transmission tones. In some aspects, the waveform may include a CP-OFDM waveform. In some aspects, the waveform may include a DFT-s-OFDM waveform. In some aspects, a plurality of PRTs may be selected such that a PAPR associated with the waveform satisfies a PAPR threshold.

[0082] As indicated by reference numeral 344, UE 120 may send a data transmission using the waveform and base station 110 may receive the data transmission.

[0083] As pointed out above, Figure 3 are provided as examples. Other examples may be related to Figure 3 Different than described.

[0084] Figure 44 is a diagram illustrating an exemplary process 400, performed, for example, by a UE, in accordance with various aspects of the present disclosure. Exemplary process 400 is an example of operations in which a UE (eg, UE 120, etc.) performs tone reservation for reducing PAPR.

[0085] like Figure 4 As shown, in some aspects, process 400 may include receiving a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones including a data tone subset of a plurality of data tones and a PRT subset of a plurality of PRTs, wherein the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth, wherein the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources (block 410). For example, as described above, a UE (e.g., using receive processor 258, controller / processor 280, memory 282, etc.) may receive a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones including a data tone subset of a plurality of data tones and a PRT subset of a plurality of PRTs. In some aspects, the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth. In some aspects, the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources.

[0086] like Figure 4 As further shown, in some aspects, process 400 may include transmitting a data transmission using a waveform based at least in part on the resource allocation (block 420). For example, as described above, the UE (e.g., using transmit processor 264, controller / processor 280, memory 282, etc.) may transmit a data transmission using a waveform based at least in part on the resource allocation.

[0087] Process 400 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0088] In a first aspect, resource allocation is carried in at least one of: a DCI, an RRC message, a MAC-CE, or a combination thereof.

[0089] In a second aspect, alone or in combination with the first aspect, process 400 includes generating a waveform by determining an inverse discrete Fourier transform of a plurality of transmitted tones.

[0090] In a third aspect, alone or in combination with one or more of the first and second aspects, the waveform comprises a CP-OFDM waveform or a DFT-s-OFDM waveform.

[0091] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the PRT subset is selected such that a PAPR associated with the waveform satisfies a PAPR threshold.

[0092] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the PRT sequence comprises a shifted version of the PRT pattern, and the PRT pattern corresponds to an additional set of allocated frequency resources.

[0093] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, resource allocation indicates a PRT sequence by indicating a deterministic function used to determine the PRT sequence.

[0094] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the deterministic function comprises a pseudo-random number generator to generate the PRT sequence.

[0095] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the pseudo-random number generator comprises a seed.

[0096] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the resource allocation indicates a seed.

[0097] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, resource allocation indicates a PRT sequence by indicating an index corresponding to the PRT sequence.

[0098] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the resource allocation indicates a PRT sequence by including a reference to a PRTT.

[0099] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the allocated set of frequency resources comprises a set of RBs, and the process 400 comprises determining a PRT sequence based at least in part on the set of RBs using the PRTT.

[0100] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the PRTT includes multiple entries, and the entries in the multiple entries include at least one of the following: a PRT sequence, wherein the PRT sequence corresponds to an RB set, an additional PRT sequence corresponding to an additional RB set, one or more parameters of a deterministic function for determining the PRT sequence, or a combination thereof.

[0101] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the allocated frequency resource set includes a RB set, and the process 400 includes determining a PRT sequence based at least in part on the number of RBs in the RB set using the PRTT.

[0102] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the PRTT includes: a first entry corresponding to a PRT sequence, wherein the first entry is associated with a first number of RBs; and a second entry corresponding to an additional PRT sequence different from the PRT sequence, wherein the second entry is associated with a second number of RBs.

[0103] In a sixteenth aspect, either alone or in combination with one or more of aspects one through fifteen, process 400 comprises determining a PRT sequence using the PRTT based at least in part on a PRT usage rate corresponding to a resource allocation, wherein the PRT usage rate comprises a ratio of a number of PRTs in a PRT subset to a number of data tones in a data tone subset.

[0104] In a seventeenth aspect, either alone or in combination with one or more of the first to sixteenth aspects, the PRT usage rate is based at least in part on at least one of: an amount of data to be sent by the UE in a data transmission, a PAPR associated with the UE, or a combination thereof.

[0105] In the eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, the PRT usage rate is based at least in part on at least one of: the amount of data that the UE will send in data transmission that meets a data amount threshold, the PAPR associated with the UE that meets a PAPR threshold, or a combination thereof.

[0106] In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the PRTT includes: a first entry corresponding to a PRT sequence, wherein the first entry is associated with a first PRT usage rate range including a PRT usage rate; and a second entry corresponding to an additional PRT sequence different from the PRT sequence, wherein the second entry is associated with a second PRT usage rate range including an additional PRT usage rate.

[0107] In the twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, the amount of data to be sent by the UE in a data transmission is greater than the amount of data to be sent by another UE in another data transmission, and the PRT usage rate is less than the additional PRT usage rate.

[0108] In a twenty-first aspect, alone or in combination with one or more of the first to twentieth aspects, a first PAPR associated with the UE is greater than a second PAPR associated with the additional UE, and a PRT usage rate is greater than an additional PRT usage rate.

[0109] In a twenty-second aspect, alone or in combination with one or more of the first to twenty-first aspects, a PRT sequence is determined based at least in part on a number of RBs associated with an allocated set of frequency resources.

[0110] In a twenty-third aspect, alone or in combination with one or more of the first to twenty-second aspects, the PRT subset is associated with an additional resource allocation corresponding to another UE.

[0111] In the twenty-fourth aspect, either alone or in combination with one or more of the first to twenty-third aspects, the additional resource allocation comprises an additional set of allocated frequency resources, which is adjacent to the allocated frequency resource set in the frequency domain.

[0112] In a twenty-fifth aspect, either alone or in combination with one or more of the first to twenty-fourth aspects, the PRT subset corresponds to a sideband associated with at least one of the UE, another UE, or a combination thereof.

[0113] In a twenty-sixth aspect, alone or in combination with one or more of the first to twenty-fifth aspects, the PRT subset corresponds to an additional data tone subset associated with the additional resource allocation.

[0114] In aspect twenty-seven, alone or in combination with one or more of aspects one to twenty-six, process 400 includes receiving a rate matching indication indicating one or more resources associated with a PRT subset around which rate matching is to be performed, and sending a data transmission includes rate matching around the one or more resources based at least in part on the rate matching indication.

[0115] In a twenty-eighth aspect, alone or in combination with one or more of the first to twenty-seventh aspects, one or more resources are associated with one or more power constraints corresponding to another UE.

[0116] In a twenty-ninth aspect, either alone or in combination with one or more of the first through twenty-eight aspects, a data transmission is sent based at least in part on the condition that a subset of PRTs do not overlap with a subset of data tones.

[0117] In a thirtieth aspect, either alone or in combination with one or more of the first to twenty-ninth aspects, the condition is based at least in part on a failure to receive a rate matching indication.

[0118] although Figure 4 An example block diagram of process 400 is shown, but in some aspects, the same Figure 4 Process 400 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks compared to the blocks depicted in. Additionally or alternatively, two or more of the blocks in process 400 may be performed in parallel.

[0119] Figure 5 is a diagram illustrating an exemplary process 500, performed, for example, by a base station, in accordance with various aspects of the present disclosure. Exemplary process 500 is an example of operations in which a base station (eg, base station 110, etc.) performs tone reservation for reducing PAPR.

[0120] like Figure 5 As shown, in some aspects, process 500 may include sending a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones including a data tone subset of a plurality of data tones and a PRT subset of a plurality of PRTs, wherein the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth, wherein the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources (block 510). For example, as described above, a base station (e.g., using transmit processor 220, controller / processor 240, memory 242, etc.) may send a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones including a data tone subset of a plurality of data tones and a PRT subset of a plurality of PRTs. In some aspects, the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth. In some aspects, the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources.

[0121] like Figure 5 As further shown, in some aspects, process 500 may include receiving a data transmission that includes a waveform based at least in part on a resource allocation (block 520). For example, as described above, a base station (e.g., using receive processor 238, controller / processor 240, memory 242, etc.) may receive a data transmission that includes a waveform based at least in part on a resource allocation.

[0122] Process 500 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0123] In a first aspect, resource allocation is carried in at least one of: a DCI, an RRC message, a MAC-CE, or a combination thereof.

[0124] In a second aspect, either alone or in combination with the first aspect, the waveform is based at least in part on an inverse discrete Fourier transform of the plurality of transmitted tones.

[0125] In a third aspect, alone or in combination with one or more of the first and second aspects, the waveform comprises a CP-OFDM waveform or a DFT-s-OFDM waveform.

[0126] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the PRT subset is selected such that a PAPR associated with the waveform satisfies a PAPR threshold.

[0127] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the PRT sequence comprises a shifted version of the PRT pattern, and the PRT pattern corresponds to an additional set of allocated frequency resources.

[0128] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, resource allocation indicates a PRT sequence by indicating a deterministic function used to determine the PRT sequence.

[0129] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the deterministic function comprises a pseudo-random number generator to generate the PRT sequence.

[0130] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the pseudo-random number generator comprises a seed.

[0131] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the resource allocation indicates a seed.

[0132] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, resource allocation indicates a PRT sequence by indicating an index corresponding to the PRT sequence.

[0133] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the resource allocation indicates a PRT sequence by including a reference to a PRTT.

[0134] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the allocated frequency resource set includes an RB set, and the PRT sequence is at least partially based on the PRTT and the RB set.

[0135] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the PRTT includes multiple entries, and the entries in the multiple entries include at least one of the following: a PRT sequence, wherein the PRT sequence corresponds to multiple RBs, an additional PRT sequence corresponding to an additional RB set, one or more parameters of a deterministic function for determining the PRT sequence, or a combination thereof.

[0136] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the plurality of allocated frequency resources comprises a set of RBs, and the PRT sequence is based at least in part on the PRTT and the number of RBs in the set of RBs.

[0137] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the PRTT includes: a first entry corresponding to a PRT sequence, wherein the first entry is associated with a first number of RBs; and a second entry corresponding to an additional PRT sequence different from the PRT sequence, wherein the second entry is associated with a second number of RBs.

[0138] In a sixteenth aspect, either alone or in combination with one or more of aspects one to fifteen, the PRT sequence is based at least in part on a PRTT and a PRT utilization rate corresponding to a resource allocation, and the PRT utilization rate comprises a ratio of the number of PRTs in a PRT subset to the number of data tones in a data tone subset.

[0139] In a seventeenth aspect, either alone or in combination with one or more of the first to sixteenth aspects, the PRT usage rate is based at least in part on at least one of: an amount of data to be sent by the UE in a data transmission, a PAPR associated with the UE, or a combination thereof.

[0140] In the eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, the PRT usage rate is based at least in part on at least one of: the amount of data that the UE will send in data transmission that meets a data amount threshold, the PAPR associated with the UE that meets a PAPR threshold, or a combination thereof.

[0141] In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the PRTT includes: a first entry corresponding to a PRT sequence, wherein the first entry is associated with a first PRT usage rate range including a PRT usage rate; and a second entry corresponding to an additional PRT sequence different from the PRT sequence, wherein the second entry is associated with a second PRT usage rate range including an additional PRT usage rate.

[0142] In the twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, the amount of data to be sent by the UE in a data transmission is greater than the amount of data to be sent by another UE in another data transmission, and the PRT usage rate is less than the additional PRT usage rate.

[0143] In a twenty-first aspect, alone or in combination with one or more of the first to twentieth aspects, a first PAPR associated with the UE is greater than a second PAPR associated with the additional UE, and a PRT usage rate is greater than an additional PRT usage rate.

[0144] In a twenty-second aspect, alone or in combination with one or more of the first to twenty-first aspects, the PRT sequence is based at least in part on a number of resource blocks associated with the allocated set of frequency resources.

[0145] In a twenty-third aspect, alone or in combination with one or more of the first to twenty-second aspects, the PRT subset is associated with an additional resource allocation corresponding to another UE.

[0146] In the twenty-fourth aspect, either alone or in combination with one or more of the first to twenty-third aspects, the additional resource allocation comprises an additional set of allocated frequency resources, which is adjacent to the allocated frequency resource set in the frequency domain.

[0147] In a twenty-fifth aspect, either alone or in combination with one or more of the first to twenty-fourth aspects, the PRT subset corresponds to a sideband associated with at least one of the UE, another UE, or a combination thereof.

[0148] In a twenty-sixth aspect, alone or in combination with one or more of the first to twenty-fifth aspects, the PRT subset corresponds to an additional data tone subset associated with the additional resource allocation.

[0149] In aspect twenty-seven, alone or in combination with one or more of aspects one to twenty-six, process 500 includes sending a rate matching indication indicating one or more resources associated with a PRT subset around which rate matching is to be performed, and data transmission is based at least in part on rate matching, the rate matching being performed at least in part based on the rate matching indication around the one or more resources.

[0150] In a twenty-eighth aspect, alone or in combination with one or more of the first to twenty-seventh aspects, one or more resources are associated with one or more power constraints corresponding to another UE.

[0151] In a twenty-ninth aspect, either alone or in combination with one or more of the first through twenty-eight aspects, a data transmission is sent based at least in part on the condition that a subset of PRTs do not overlap with a subset of data tones.

[0152] In the thirtieth aspect, alone or in combination with one or more of the first to twenty-ninth aspects, the condition is at least partially based on failure to receive a rate matching indication

[0153] although Figure 5 Example blocks of process 500 are shown, but in some aspects, the same Figure 5 Process 500 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks compared to the blocks depicted in. Additionally or alternatively, two or more of the blocks in process 500 may be performed in parallel.

[0154] The following provides an overview of some aspects of the disclosure:

[0155] Aspect 1: A wireless communication method performed by a user equipment (UE) includes: receiving a resource allocation indicating multiple transmission tones, the multiple transmission tones including a data tone subset of multiple data tones and a PRT subset of multiple peak reduction tones (PRTs), wherein the resource allocation indicates multiple data tone positions and multiple PRT positions within a specific bandwidth, wherein the PRT position subset of the multiple PRT positions is arranged relative to the data tone position subset of the multiple data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; and sending a data transmission using a waveform based at least in part on the resource allocation.

[0156] Aspect 2: The method according to aspect 1, wherein the resource allocation is carried in at least one of the following: downlink control information, a radio resource control message, a medium access control control element, or a combination thereof.

[0157] Aspect 3: The method according to any one of aspects 1 or 2, further comprising generating a waveform by determining an inverse discrete Fourier transform of the plurality of transmission tones.

[0158] Aspect 4: The method according to any one of aspects 1-3, wherein the waveform comprises a cyclic prefix orthogonal frequency division multiplexing (OFDM) waveform or a discrete Fourier transform extended OFDM waveform.

[0159] Aspect 5: The method according to any one of aspects 1-4, wherein the PRT subset is selected so that a peak-to-average power ratio (PAPR) associated with the waveform satisfies a PAPR threshold.

[0160] Aspect 6: The method according to any one of aspects 1-5, wherein the PRT sequence comprises a shifted version of a PRT pattern, wherein the PRT pattern corresponds to an additional set of allocated frequency resources.

[0161] Aspect 7: The method according to any one of aspects 1-6, wherein the resource allocation indicates the PRT sequence by indicating a deterministic function for determining the PRT sequence.

[0162] Aspect 8: The method according to aspect 7, wherein the deterministic function includes a pseudo-random number generator to generate the PRT sequence.

[0163] Aspect 9: The method according to aspect 8, wherein the pseudo-random number generator includes a seed.

[0164] Aspect 10: The method according to aspect 9, wherein the resource allocation indicates a seed.

[0165] Aspect 11: The method according to any one of aspects 1-10, wherein the resource allocation indicates the PRT sequence by indicating an index corresponding to the PRT sequence.

[0166] Aspect 12: The method according to any one of aspects 1-11, wherein the resource allocation indicates the PRT sequence by including a reference to a PRT table (PRTT).

[0167] Aspect 13: The method according to aspect 12, wherein the allocated frequency resource set includes a resource block (RB) set, and the method further includes determining the PRT sequence based at least in part on the RB set using the PRTT.

[0168] Aspect 14: A method according to any one of Aspects 12 or 13, wherein the PRTT comprises a plurality of entries, wherein an entry in the plurality of entries comprises at least one of the following: a PRT sequence, wherein the PRT sequence corresponds to a set of resource blocks (RBs), an additional PRT sequence corresponding to an additional set of RBs, one or more parameters of a deterministic function for determining the PRT sequence, or a combination thereof.

[0169] Aspect 15: A method according to any one of aspects 12-14, wherein the allocated frequency resource set includes a resource block (RB) set, and the method further includes using the PRTT to determine the PRT sequence based at least in part on the number of RBs in the RB set.

[0170] Aspect 16: A method according to any one of Aspects 12-15, wherein the PRTT includes: a first entry corresponding to a PRT sequence, wherein the first entry is associated with a first number of resource blocks (RBs); and a second entry corresponding to an additional PRT sequence different from the PRT sequence, wherein the second entry is associated with a second number of RBs.

[0171] Aspect 17: The method according to any one of Aspects 12-16 also includes using the PRTT to determine a PRT sequence at least in part based on a PRT usage rate corresponding to the resource allocation, wherein the PRT usage rate includes a ratio of the number of PRTs in the PRT subset to the number of data tones in the data tone subset.

[0172] Aspect 18: The method of aspect 17, wherein the PPRT usage rate is based at least in part on at least one of: an amount of data to be sent by the UE in the data transmission, a peak-to-average power ratio associated with the UE, or a combination thereof.

[0173] Aspect 19: A method according to any one of Aspects 17 or 18, wherein the PRT usage rate is based at least in part on at least one of: the amount of data that the UE will send in the data transmission that meets the data amount threshold, the peak-to-average power ratio (PAPR) associated with the UE that meets the PAPR threshold, or a combination thereof.

[0174] Aspect 20: A method according to any one of Aspects 17-19, wherein the PRTT includes: a first entry corresponding to a PRT sequence, wherein the first entry is associated with a first PRT usage rate range including a PRT usage rate; and a second entry corresponding to an additional PRT sequence different from the PRT sequence, wherein the second entry is associated with a second PRT usage rate range including an additional PRT usage rate.

[0175] Aspect 21: The method according to aspect 20, wherein an amount of data to be sent by the UE in a data transmission is greater than an amount of data to be sent by another UE in another data transmission, and wherein the PRT usage rate is less than the additional PRT usage rate.

[0176] Aspect 22: A method according to any one of Aspects 20 or 21, wherein a first peak-to-average power ratio (PAPR) associated with the UE is greater than a second PAPR associated with the additional UE, and wherein the PRT usage rate is greater than the additional PRT usage rate.

[0177] Aspect 23: The method according to any one of aspects 1-22, wherein the PRT sequence is determined based at least in part on the number of resource blocks associated with the allocated set of frequency resources.

[0178] Aspect 24: The method according to any one of aspects 1-23, wherein the PRT subset is associated with an additional resource allocation corresponding to another UE.

[0179] Aspect 25: The method according to aspect 24, wherein the additional resource allocation comprises an additional set of allocated frequency resources, the additional set of allocated frequency resources being adjacent to the allocated set of frequency resources in the frequency domain.

[0180] Aspect 26: The method according to any one of aspects 24 or 25, wherein the PRT subset corresponds to a sideband associated with at least one of the UE, another UE, or a combination thereof.

[0181] Aspect 27: The method according to any of aspects 24-26, wherein the PRT subset corresponds to an additional data tone subset associated with the additional resource allocation.

[0182] Aspect 28: The method according to Aspect 27 further includes: receiving a rate matching indication, which indicates one or more resources associated with the PRT subset around which rate matching is to be performed, and wherein sending data transmission includes rate matching around the one or more resources based at least in part on the rate matching indication.

[0183] Aspect 29: The method according to aspect 28, wherein the one or more resources are associated with one or more power constraints corresponding to another UE.

[0184] Aspect 30: The method of any of aspects 1-29, wherein the data transmission is sent based at least in part on the condition that the PRT subset does not overlap with the data tone subset.

[0185] Aspect 31: The method of aspect 30, wherein the condition is based at least in part on a failure to receive a rate matching indication.

[0186] Aspect 32: A wireless communication method performed by a base station includes: sending a resource allocation indicating multiple transmission tones, the multiple transmission tones including a data tone subset of multiple data tones and a PRT subset of multiple peak reduction tones (PRT), wherein the resource allocation indicates multiple data tone positions and multiple PRT positions within a specific bandwidth, wherein the PRT position subset of the multiple PRT positions is arranged relative to the data tone position subset of the multiple data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; and receiving a data transmission including a waveform based at least in part on the resource allocation.

[0187] Aspect 33: The method according to aspect 32, wherein the resource allocation is carried in at least one of the following: downlink control information, a radio resource control message, a medium access control control element, or a combination thereof.

[0188] Aspect 34: A method according to any one of aspects 32 or 33, wherein the waveform is based at least in part on an inverse discrete Fourier transform of the plurality of transmitted tones.

[0189] Aspect 35: A method according to any one of aspects 32-34, wherein the waveform comprises a cyclic prefix orthogonal frequency division multiplexing (OFDM) waveform or a discrete Fourier transform spread OFDM waveform.

[0190] Aspect 36: A method according to any one of aspects 32-35, wherein the PRT subset is selected so that a peak-to-average power ratio (PAPR) associated with the waveform satisfies a PAPR threshold.

[0191] Aspect 37: The method according to any one of aspects 32-36, wherein the PRT sequence comprises a shifted version of a PRT pattern, wherein the PRT pattern corresponds to an additional set of allocated frequency resources.

[0192] Aspect 38: The method according to any one of aspects 32-37, wherein the resource allocation indicates the PRT sequence by indicating a deterministic function for determining the PRT sequence.

[0193] Aspect 39: The method according to Aspect 38, wherein the deterministic function includes a pseudo-random number generator to generate the PRT sequence.

[0194] Aspect 40: A method according to Aspect 39, wherein the pseudo-random number generator includes a seed.

[0195] Aspect 41: The method according to aspect 40, wherein the resource allocation indicates a seed.

[0196] Aspect 42: The method according to any one of aspects 32-41, wherein the resource allocation indicates the PRT sequence by indicating an index corresponding to the PRT sequence.

[0197] Aspect 43: A method according to any one of aspects 32-42, wherein the resource allocation indicates the PRT sequence by including a reference to a PRT table (PRTT).

[0198] Aspect 44: The method according to aspect 43, wherein the allocated set of frequency resources includes a set of resource blocks (RBs), and wherein the PRT sequence is based at least in part on the PRTT and the set of RBs.

[0199] Aspect 45: A method according to any one of Aspects 43 or 44, wherein the PRTT comprises a plurality of entries, wherein an entry in the plurality of entries comprises at least one of the following: a PRT sequence, wherein the PRT sequence corresponds to a set of resource blocks (RBs), an additional PRT sequence corresponding to an additional set of RBs, one or more parameters of a deterministic function for determining the PRT sequence, or a combination thereof.

[0200] Aspect 46: A method according to any one of aspects 43-45, wherein the allocated set of frequency resources comprises a set of resource blocks (RBs), and wherein the PRT sequence is based at least in part on the PRTT and the number of RBs in the RB set.

[0201] Aspect 47: A method according to any one of Aspects 43-46, wherein the PRTT includes: a first entry corresponding to a PRT sequence, wherein the first entry is associated with a first number of resource blocks (RBs); and a second entry corresponding to an additional PRT sequence different from the PRT sequence, wherein the second entry is associated with a second number of RBs.

[0202] Aspect 48: A method according to any of Aspects 43-47, wherein the PRT sequence is based at least in part on the PRTT and a PRT utilization rate corresponding to the resource allocation, wherein the PRT utilization rate includes a ratio of the number of PRTs in the PRT subset to the number of data tones in the data tone subset.

[0203] Aspect 49: The method of aspect 48, wherein the PPRT usage rate is based at least in part on at least one of: an amount of data to be sent by the UE in a data transmission, a peak-to-average power ratio associated with the UE, or a combination thereof.

[0204] Aspect 50: A method according to any one of Aspects 48 or 49, wherein the PRT usage rate is based at least in part on at least one of: an amount of data that the UE will send in a data transmission that meets a data amount threshold, a peak-to-average power ratio (PAPR) associated with the UE that meets a PAPR threshold, or a combination thereof.

[0205] Aspect 51: A method according to any one of Aspects 48-50, wherein the PRTT includes: a first entry corresponding to a PRT sequence, wherein the first entry is associated with a first PRT usage rate range including a PRT usage rate; and a second entry corresponding to an additional PRT sequence different from the PRT sequence, wherein the second entry is associated with a second PRT usage rate range including an additional PRT usage rate.

[0206] Aspect 52: The method according to aspect 51, wherein an amount of data to be sent by the UE in the data transmission is greater than an amount of data to be sent by another UE in another data transmission, and wherein the PRT usage rate is less than the additional PRT usage rate.

[0207] Aspect 53: A method according to any one of Aspects 51 or 52, wherein a first peak-to-average power ratio (PAPR) associated with the UE is greater than a second PAPR associated with the additional UE, and wherein the PRT usage rate is greater than the additional PRT usage rate.

[0208] Aspect 54: The method according to any of aspects 32-53, wherein the PRT sequence is based at least in part on the number of resource blocks associated with the allocated set of frequency resources.

[0209] Aspect 55: A method according to any of aspects 32-54, wherein the PRT subset is associated with an additional resource allocation corresponding to another UE.

[0210] Aspect 56: The method according to aspect 55, wherein the additional resource allocation comprises an additional set of allocated frequency resources, the additional set of allocated frequency resources being adjacent to the allocated set of frequency resources in the frequency domain.

[0211] Aspect 57: The method according to any one of Aspects 55 or 56, wherein the PRT subset corresponds to a sideband associated with at least one of the UE, another UE, or a combination thereof.

[0212] Aspect 58: The method according to any of aspects 55-57, wherein the PRT subset corresponds to an additional data tone subset associated with the additional resource allocation.

[0213] Aspect 59: The method according to Aspect 58 further includes: sending a rate matching indication, which indicates one or more resources associated with the PRT subset around which rate matching is to be performed, and wherein the data transmission is at least partially based on the rate matching, and the rate matching is performed at least partially based on the rate matching indication around the one or more resources.

[0214] Aspect 60: The method of aspect 59, wherein the one or more resources are associated with one or more power constraints corresponding to another UE.

[0215] Aspect 61: A method according to any of aspects 32-60, wherein the data transmission is sent based at least in part on the condition that the PRT subset does not overlap with the data tone subset.

[0216] Aspect 62: The method of aspect 61, wherein the condition is based at least in part on a failure to receive a rate matching indication.

[0217] Aspect 63: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 1-62.

[0218] Aspect 64: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method according to one or more of aspects 1-31.

[0219] Aspect 65: An apparatus for wireless communication, comprising at least one component for performing the method according to one or more of aspects 1-31.

[0220] Aspect 66: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1-31.

[0221] Aspect 67: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1-31.

[0222] Aspect 68: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 32-62.

[0223] Aspect 69: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method according to one or more of aspects 32-62.

[0224] Aspect 70: An apparatus for wireless communication, comprising at least one component for performing the method according to one or more of aspects 32-62.

[0225] Aspect 71: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 32-62.

[0226] Aspect 72: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform a method according to one or more of aspects 32-62.

[0227] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the various aspects.

[0228] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Software should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes and / or functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language or other. As used herein, the processor is implemented with a combination of hardware and / or hardware and software. It will be apparent that the system and / or method described herein can be implemented with a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code for implementing these systems and / or methods does not limit these aspects. Therefore, the operation and behavior of the system and / or method are described herein without reference to specific software codes, and it should be understood that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.

[0229] As used herein, satisfying a threshold may refer to a value greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0230] Even if a specific combination of features is recorded in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner that is not specifically recorded in the claims and / or disclosed in the specification. Although each dependent claim listed below can directly rely on only one claim, the disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one" referring to a list of items refers to any combination of those items, including a single member. As an example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, as well as any combination with multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other ordering of a, b and c).

[0231] Unless explicitly described in this way, any element, action or instruction used herein should not be interpreted as critical or necessary. In addition, as used herein, the articles "one" and "an" are intended to include one or more items, and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more items quoted in relation to the article "the", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "grouping" are intended to include one or more items (e.g., a combination of related items, unrelated items, related items and unrelated items), and can be used interchangeably with "one or more". In the case of being intended to have only one item, phrases "only one" or similar language are used. In addition, as used herein, the terms "have", "have", "have (having)" etc. are intended to be open terms. In addition, unless otherwise expressly stated, the phrase "based on" is intended to represent "based at least in part". In addition, as used herein, the term "or" is intended to be inclusive when used in a series of forms, and can be used interchangeably with "and / or", unless otherwise expressly stated (e.g., if used in combination with "either" or "only one").

Claims

1. A user equipment UE for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, the one or more processors configured to: receiving a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones comprising a data tone subset of a plurality of data tones and a PRT subset of a plurality of peak reducing tones (PRTs), wherein the PRT subset is associated with an additional resource allocation corresponding to another UE, wherein the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth, wherein the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; as well as A data transmission is sent using a waveform based at least in part on the resource allocation.

2. The UE of claim 1, wherein the PRT subset is selected such that a peak-to-average power ratio (PAPR) associated with the waveform satisfies a PAPR threshold. 3 . The UE of claim 1 , wherein the PRT sequence comprises a shifted version of a PRT pattern, wherein the PRT pattern corresponds to an additional set of allocated frequency resources. 4 . The UE of claim 1 , wherein the resource allocation indicates the PRT sequence by indicating a deterministic function used to determine the PRT sequence. 5 . The UE of claim 4 , wherein the deterministic function comprises a pseudo-random number generator to generate the PRT sequence.

6. The UE of claim 5, wherein the pseudo-random number generator comprises a seed, wherein the resource allocation indicates the seed. 7 . The UE of claim 1 , wherein the resource allocation indicates the PRT sequence by indicating an index corresponding to the PRT sequence.

8. The UE of claim 1, wherein the resource allocation indicates the PRT sequence by including a reference to a PRT table PRTT.

9. The UE according to claim 8, wherein the allocated frequency resource set comprises a resource block (RB) set, and The one or more processors are configured to determine the PRT sequence based at least in part on the RB set using the PRTT.

10. The UE of claim 8, wherein the PRTT comprises a plurality of entries, wherein an entry in the plurality of entries comprises at least one of the following: The PRT sequence, wherein the PRT sequence corresponds to a resource block RB set, Additional PRT sequences corresponding to additional RB sets, one or more parameters of a deterministic function for determining said PRT sequence, or A combination of them.

11. The UE according to claim 8, wherein the allocated frequency resource set comprises a resource block (RB) set, and The one or more processors are configured to determine the PRT sequence based at least in part on a number of RBs in the RB set using the PRTT.

12. The UE according to claim 8, wherein the PRTT comprises: a first entry corresponding to the PRT sequence, wherein the first entry is associated with a first number of resource blocks (RBs); as well as A second entry corresponding to an additional PRT sequence different from the PRT sequence, wherein the second entry is associated with a second number of RBs.

13. The UE of claim 8, wherein the one or more processors are further configured to determine the PRT sequence using the PRTT based at least in part on a PRT usage rate corresponding to the resource allocation, wherein the PRT usage rate comprises a ratio of the number of PRTs in the PRT subset to the number of data tones in the data tone subset.

14. The UE of claim 13, wherein the PRT usage rate is based at least in part on at least one of: the amount of data that the UE will send in said data transmission, a peak-to-average power ratio associated with the UE, or A combination of them.

15. The UE of claim 13, wherein the PRT usage rate is based at least in part on at least one of: the amount of data that the UE will send in the data transmission that satisfies the data amount threshold, a PAPR associated with the UE that satisfies a peak-to-average power ratio (PAPR) threshold, or A combination of them.

16. The UE according to claim 13, wherein the PRTT comprises: a first entry corresponding to the PRT sequence, wherein the first entry is associated with a first PRT usage rate range that includes the PRT usage rate; and A second entry corresponding to an additional PRT sequence different from the PRT sequence, wherein the second entry is associated with a second PRT usage rate range including the additional PRT usage rate.

17. The UE of claim 16, wherein an amount of data to be sent by the UE in the data transmission is greater than an amount of data to be sent by another UE in another data transmission, and The PRT usage rate is less than the additional PRT usage rate.

18. The UE of claim 16, wherein a first peak-to-average power ratio (PAPR) associated with the UE is greater than a second PAPR associated with an additional UE, and The PRT usage rate is greater than the additional PRT usage rate.

19. The UE of claim 1, wherein the PRT sequence is determined based at least in part on a number of resource blocks associated with the allocated set of frequency resources.

20. The UE of claim 1, wherein the additional resource allocation comprises an additional set of allocated frequency resources, the additional set of allocated frequency resources being adjacent to the set of allocated frequency resources in the frequency domain.

21. The UE of claim 1, wherein the PRT subset corresponds to a sideband associated with at least one of the UE, the another UE, or a combination thereof.

22. The UE of claim 1, wherein the PRT subset corresponds to an additional data tone subset associated with the additional resource allocation.

23. The UE of claim 22, wherein the one or more processors are further configured to: receiving a rate matching indication indicating one or more resources associated with the PRT subset around which rate matching is to be performed, and The one or more processors that are to send the data transmission are configured to rate match around the one or more resources based at least in part on the rate matching indication.

24. The UE of claim 23, wherein the one or more resources are associated with one or more power constraints corresponding to the other UE.

25. The UE of claim 1, wherein the data transmission is sent based at least in part on a condition that the PRT subset does not overlap with the data tone subset.

26. The UE of claim 25, wherein the condition is based at least in part on a failure to receive a rate matching indication.

27. A base station for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, the one or more processors configured to: sending a resource allocation indicating a plurality of transmission tones to a user equipment (UE), the plurality of transmission tones comprising a data tone subset of a plurality of data tones and a PRT subset of a plurality of peak reducing tones (PRTs), wherein the PRT subset is associated with an additional resource allocation corresponding to another UE, wherein the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth, wherein the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to the allocated set of frequency resources; as well as A data transmission is received including a waveform based at least in part on the resource allocation.

28. A wireless communication method performed by a user equipment UE, comprising: receiving a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones comprising a data tone subset of a plurality of data tones and a PRT subset of a plurality of peak reducing tones (PRTs), wherein the PRT subset is associated with an additional resource allocation corresponding to another UE, wherein the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth, wherein the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; as well as A data transmission is sent using a waveform based at least in part on the resource allocation.

29. A method of wireless communication performed by a base station, comprising: transmitting a resource allocation indicating a plurality of transmission tones, the plurality of transmission tones comprising a data tone subset of a plurality of data tones and a PRT subset of a plurality of peak reducing tones (PRTs), wherein the PRT subset is associated with an additional resource allocation corresponding to another UE, wherein the resource allocation indicates a plurality of data tone positions and a plurality of PRT positions within a particular bandwidth, wherein the PRT position subset of the plurality of PRT positions is arranged relative to the data tone position subset of the plurality of data tone positions according to a PRT sequence corresponding to an allocated set of frequency resources; as well as A data transmission is received including a waveform based at least in part on the resource allocation.

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