Time gap with tail samples for high frequency band

Abstract

Various aspects of the disclosure generally relate to wireless communication. In some aspects, a wireless communication device can receive, in a first slot, a cyclic prefix (CP) at a beginning of the first slot, data content, and a tail sample at an end of the first slot. The wireless communication device can initiate a gap action (such as switching a beam) during reception of the tail sample, the gap action occurring within a time gap formed by at least the tail sample. The time gap can also include a CP of a second slot after the first slot. The wireless communication device can complete the gap action within the time gap. Numerous other aspects are described.

Description

[0001] Cross-references to related applications

[0002] This patent application claims priority to U.S. nonprovisional patent application No. 17 / 134,869, filed on December 28, 2020, entitled “TIME GAP WITH TAIL SAMPLESFOR HIGH FREQUENCY BANDS”, which is hereby expressly incorporated by reference.

[0003] open field

[0004] Various aspects of this disclosure generally relate to wireless communication, and specifically to techniques and apparatus for forming time gaps with tail samples in high-frequency bands.

[0005] background

[0006] Wireless communication systems are widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power). 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 an enhancement set of the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).

[0007] A wireless network may include several base stations (BSs) capable of supporting communication between several user equipments (UEs). UEs can communicate with the base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, while an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a B-node, gNB, access point (AP), radio headend, transmit / receive point (TRP), new radio (NR) BS, 5G B-node, etc.

[0008] The multiple access technologies mentioned above have been adopted in various telecommunications standards to provide a common protocol enabling different user equipment to communicate at the city, country, region, and even global levels. New Radio (NR) (also known as 5G) is an enhancement set to the LTE mobile standard issued by the 3rd Generation Partnership Project (3GPP). NR is designed to better support mobile broadband internet access by using Orthogonal Frequency Division Multiplexing (OFDM) with a Cyclic Prefix (CP) (CP-OFDM) on the downlink (DL), and CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies and carrier aggregation to improve spectral efficiency, reduce costs, improve service, utilize new spectrum, and better integrate with other open standards. Further improvements to LTE, NR, and other radio access technologies remain useful as the demand for mobile broadband access continues to grow.

[0009] Overview

[0010] In some aspects, a wireless communication method performed by a wireless communication device includes: receiving a first cyclic prefix (CP), data content, and a tail sample at the end of a first time slot during a first time slot. The method includes: initiating a gap action during the reception of the tail sample, wherein the gap action occurs within a time gap formed by at least the tail sample; and completing the gap action within the time gap.

[0011] In some aspects, a wireless communication method performed by a wireless communication device includes concatenating modulated samples and padding samples of data content prior to a Discrete Fourier Transform (DFT) multiplexing operation for a first communication. The method includes adding a first CP (Concurrent Pair) to the start of the first communication after performing the DFT multiplexing operation on the concatenated samples to generate the first communication. The first communication may include the first CP, the data content, and tail samples corresponding to the padding samples. The method further includes transmitting the first communication in a first time slot.

[0012] In some aspects, a wireless communication device for wireless communication includes a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: receive a first CP (Concurrent Processing) at the beginning of the first time slot, data content, and a tail sample at the end of the first time slot during a first time slot. The one or more processors are configured to: initiate a gap operation during the reception of the tail sample, wherein the gap operation occurs within a time gap formed by at least the tail sample. The one or more processors are configured to: complete the gap operation within the time gap.

[0013] In some aspects, a wireless communication device for wireless communication includes a memory; and one or more processors operatively coupled to the memory, the memory and the processors being configured to concatenate modulated samples and padding samples of a data content prior to a DFT multiplexing operation for a first communication. The processors are configured to add a first CP to the start of the first communication after performing the DFT multiplexing operation on the concatenated samples to generate the first communication, wherein the first communication includes the first CP, the data content, and tail samples corresponding to the padding samples. The processors are configured to transmit the first communication in a first time slot.

[0014] In some aspects, a non-transient 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 wireless communication device, cause the wireless communication device to: receive a first CP, data content, and a tail sample at the beginning of the first time slot, and at the end of the first time slot, in a first time slot; initiate a gap action during the reception of the tail sample, the gap action occurring within a time gap formed by at least the tail sample; and complete the gap action within the time gap.

[0015] In some aspects, a non-transient 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 wireless communication device, cause the wireless communication device to: concatenate modulated samples and padding samples of data content prior to a DFT multiplexing operation for a first communication; add a first CP to the beginning of the first communication after performing the DFT multiplexing operation on the concatenated samples to generate the first communication, wherein the first communication includes the first CP, the data content, and a tail sample corresponding to the padding sample; and transmit the first communication in a first time slot.

[0016] In some aspects, an apparatus for wireless communication includes: means for receiving a first CP at the beginning of a first time slot, data content, and a tail sample at the end of the first time slot in a first time slot; means for initiating a gap operation during the reception of the tail sample, the gap operation occurring within a time gap formed by at least the tail sample; and means for completing the gap operation within the time gap.

[0017] In some aspects, an apparatus for wireless communication includes: means for concatenating modulated samples and padding samples of data content prior to a DFT multiplexing operation for a first communication; means for adding a first CP to the start of the first communication after performing the DFT multiplexing operation on the concatenated samples to generate the first communication, wherein the first communication includes the first CP, the data content, and a tail sample corresponding to the padding sample; and means for transmitting the first communication in a first time slot.

[0018] The terms generally include, as described herein with reference to the accompanying drawings and description, methods, apparatus, systems, computer program products, non-transient computer-readable media, user equipment, base stations, wireless communication devices and / or processing systems, as illustrated in the drawings and description.

[0019] The foregoing has broadly outlined the features and technical advantages of the examples according to this disclosure in an effort to facilitate a better understanding of the following detailed description. Additional features and advantages will be described thereafter. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for implementing the same purposes as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, in both their organization and manner of operation, and their associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each drawing is provided for illustrative and descriptive purposes and not for defining limitations on the claims. Brief description of the attached diagram

[0021] To gain a more detailed understanding of the features described above in this disclosure, reference can be made to various aspects of the above brief overview, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and should not be considered as limiting its scope, as other equivalent aspects are permissible in this description. Identical reference numerals in different drawings may identify the same or similar elements.

[0022] Figure 1 This is a diagram illustrating examples of wireless networks according to various aspects of this disclosure.

[0023] Figure 2 This is a diagram illustrating an example of communication between a base station and a user equipment (UE) in a wireless network according to various aspects of this disclosure.

[0024] Figure 3 These are illustrations illustrating various examples of channel state information reference signal beam management procedures according to various aspects of this disclosure.

[0025] Figure 4 This is a diagram illustrating examples of the transmit and receive chains of a wireless communication device according to various aspects of this disclosure.

[0026] Figure 5 This is a diagram illustrating an example of a cyclic prefix for beam switching according to various aspects of this disclosure.

[0027] Figure 6 This is a diagram illustrating an example of forming a time gap with tail samples in a high-frequency band according to various aspects of this disclosure.

[0028] Figure 7 This is a diagram illustrating an example of forming a time gap with tail samples in a high-frequency band according to various aspects of this disclosure.

[0029] Figure 8 This is a diagram illustrating an example of forming a time gap with tail samples in a high-frequency band according to various aspects of this disclosure.

[0030] Figure 9 This is a diagram illustrating an example process performed, for example, by a wireless communication device acting as a receiving device, according to various aspects of this disclosure.

[0031] Figure 10 This is a diagram illustrating an example process performed, for example, by a wireless communication device acting as a transmitter, according to various aspects of this disclosure.

[0032] Figures 11-12 This is a block diagram of an example device for wireless communication according to various aspects of this disclosure.

[0033] Detailed description

[0034] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms and should not be construed as being limited to any specific structure or function given throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will appreciate that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or method of practice. Furthermore, the scope of this disclosure is intended to cover such apparatus or methods practiced using additional structures, functionalities, or structures and functionalities that complement or supplement the various aspects of this disclosure set forth herein. It should be understood that any aspect of this disclosure disclosed herein may be implemented by one or more elements of the claims.

[0035] Several aspects of a telecommunications system will now be described with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and explained in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively, "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0036] It should be noted that although the aspects herein may be described using terms commonly associated with 5G or NR radio access technology (RAT), the aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or RATs after 5G (e.g., 6G).

[0037] Figure 1 This is a diagram illustrating an example of a wireless network 100 according to various aspects of this disclosure. The wireless network 100 may be a 5G (NR) network and / or an LTE network, etc., or may include elements thereof. The wireless network 100 may include several base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NRBS, B-node, gNB, 5G B-node (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 the coverage area of ​​a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.

[0038] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. Macrocells can cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access by UEs with a service subscription. Picocells can cover a relatively small geographic area and allow unrestricted access by UEs with a service subscription. Femtocells can cover a relatively small geographic area (e.g., a residential area) and allow restricted access by UEs associated with that femtocell (e.g., UEs in a Closed Subscriber Group (CSG)). A BS used for macrocells may be referred to as a macro BS. A BS used for picocells may be referred to as a pico BS. A BS used for femtocells may be referred to as a femto BS or a home BS. Figure 1In the example shown, BS 110a can be a macro BS for macro cell 102a, BS 110b can be a pico BS for pico cell 102b, and BS 110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “B node,” “5G NB,” and “cell” are used interchangeably herein.

[0039] In some respects, the cell may not be stationary, and the geographical area of ​​the cell may move depending on the location of the mobile BS. In some respects, BSs may interconnect with each other and / or interconnect to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (such as direct physical connections or virtual networks, using any suitable transport network).

[0040] The wireless network 100 may also include a relay station. A relay station is an entity capable of receiving data transmissions from an upstream station (e.g., a BS or a UE) and transmitting those data transmissions to a downstream station (e.g., a UE or a BS). A relay station can also be a UE capable of relaying transmissions for other UEs. Figure 1 In the example shown, relay BS 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS may also be referred to as a relay station, relay base station, relay, or wireless communication device.

[0041] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) such as macro BSs, pico BSs, femto BSs, relay BSs, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs may have high transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts).

[0042] Network controller 130 can be coupled to a set of Base Stations (BSs) and can provide coordination and control over these BSs. Network controller 130 can communicate with each BS via backhaul. These BSs can also communicate with each other directly or indirectly, for example, via wireless or wired backhaul.

[0043] UE 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be stationary or mobile. UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE may be a cellular phone (e.g., a smartphone), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet, camera, gaming device, netbook, smartbook, ultrabook, medical device or equipment, biometric sensor / device, wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), entertainment device (e.g., music or video device, or satellite radio), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0044] Some UEs may be considered machine-type communication (MTC) devices or evolved or enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, instruments, monitors, and / or location tags that can communicate with a base station, another device (e.g., a remote device), or some other entity. Wireless nodes may provide connectivity to or to a network (e.g., a wide area network, such as the Internet or a cellular network) via wired or wireless communication links, for example. Some UEs may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included within a housing that houses components of UE 120, such as processor components and / or memory components. In some aspects, the processor components and memory components may be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0045] Generally, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific RAT and can operate on one or more frequencies. A RAT can also be referred to as a radio technology, air interface, etc. A frequency can also be referred to as a carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0046] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary). For example, UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols or vehicle-to-infrastructure (V2I) protocols), and / or mesh networks. In this scenario, UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as performed by at least base station 110.

[0047] Devices in the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in the wireless network 100 can communicate using an operating band with a first frequency range (FR1) and / or an operating band with a second frequency range (FR2), where the first frequency range (FR1) spans from 410 MHz to 7.125 GHz and the second frequency range (FR2) spans from 24.25 GHz to 52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred to as intermediate frequency bands. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as the "sub-6 GHz band." Similarly, although different from the extremely high frequency (EHF) band (30 GHz–300 GHz) designated as the "millimeter wave" band by the International Telecommunication Union (ITU), FR2 is often referred to as the "millimeter wave" band. Therefore, unless otherwise stated, it should be understood that, if used herein, the terms "sub-6 GHz" and the like can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or intermediate frequency band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise stated, it should be understood that, if used herein, the terms "millimeter wave" and the like can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or intermediate frequency band frequencies (e.g., less than 24.25 GHz). It is conceivable that the frequencies included in FR1 and FR2 can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0048] As indicated above, Figure 1 This is provided as an example. Other examples may differ from the one provided. Figure 1 The example described.

[0049] Figure 2This is a diagram illustrating an example 200 of communication between a base station 110 and a UE 120 in a wireless network 100 according to various aspects of this disclosure. The base station 110 may be equipped with T antennas 234a to 234t, and the UE 120 may be equipped with R antennas 252a to 252r, wherein generally T≥1 and R≥1.

[0050] At base station 110, transmit processor 220 can receive data destined for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQI) received from each UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmit processor 220 can also process system information (e.g., semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper-layer signaling), and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and can provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can process its respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t, respectively.

[0051] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can further process the input sample (e.g., for OFDM) to obtain received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on these received symbols where applicable, and provide detected symbols. Receiver processor 258 can process (e.g., demodulate and decode) these detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine parameters such as Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and / or Channel Quality Indicator (CQI). In some respects, one or more components of the UE 120 may be included in the housing 284.

[0052] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0053] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include, or be included therein, one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or multiple antenna elements within housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include elements coupled to one or more transmitting and / or receiving components (such as...). Figure 2 One or more antenna elements (one or more components).

[0054] On the uplink, at UE 120, transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., reports including RSRP, RSSI, RSRQ, and / or CQI). Transmit processor 264 can also generate reference symbols for one or more reference signals. Symbols from transmit processor 264 may be pre-encoded by TX MIMO processor 266 where applicable, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In some aspects, modulators and demodulators (e.g., MOD / DEMOD 254) of UE 120 may be included in the modem of UE 120. In some aspects, UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detectors 256, receiver processors 258, transmitter processors 264, and / or TX MIMO processors 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, for example, as referenced. Figures 1-12 As described.

[0055] At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 where applicable, and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 can provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 to schedule UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of base station 110 may be included in the modem of base station 110. In some aspects, base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receiver processors 238, transmitter 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, for example, as referenced. Figures 1-12 As described.

[0056] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component may perform one or more techniques associated with forming time gaps with tail samples in the high-frequency band, as described elsewhere in this document in more detail. In some aspects, the wireless communication device described herein is base station 110, is included in base station 110, or includes... Figure 2 One or more components of the base station 110 shown herein. In some aspects, the wireless communication device described herein is UE 120, is included in UE 120, or includes... Figure 2 One or more components of the UE 120 shown. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component may execute or direct, for example Figure 9 The process 900 Figure 10 The operation of process 1000 and / or other processes as described herein. Memory 242 and 282 may store data and program code of 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., direct execution, or execution after compilation, transformation, and / or interpretation), the one or more processors, UE 120, and / or base station 110 may cause the one or more processors, UE 120, and / or base station 110 to perform or direct, for example... Figure 9 The process 900 Figure 10 The operation of process 1000, and / or other processes described herein. In some aspects, the execution instructions may include run instructions, translate instructions, compile instructions, and / or interpret instructions, etc.

[0057] In some aspects, a wireless communication device (e.g., base station 110, UE 120, etc.) includes: means for receiving a first CP, data content, and a tail sample at the beginning of a first time slot, and at the end of the first time slot; means for initiating a gap operation during the reception of the tail sample, the gap operation occurring within a time gap formed by at least the tail sample; and / or means for completing the gap operation within the time gap. In some aspects, means for the wireless communication device to perform the operations described herein may include, for example, one or more of the following: a transmit processor 220, a TXMIMO processor 230, a modulator 232, an antenna 234, a demodulator 232, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246. In some aspects, means for enabling wireless communication devices to perform the operations described herein may include, for example, one or more of the following: antenna 252, demodulator 254, MIMO detector 256, receiver processor 258, transmitter processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, or memory 282.

[0058] In some aspects, a wireless communication device (e.g., base station 110, UE 120, etc.) includes: means for concatenating modulated samples and padding samples of data content prior to a DFT multiplexing operation for a first communication; means for adding a first CP to the start of the first communication after performing a DFT multiplexing operation on the concatenated samples to generate the first communication, wherein the first communication includes the first CP, data content, and tail samples corresponding to the padding samples; and / or means for transmitting the first communication in a first time slot. In some aspects, means for enabling the wireless communication device to perform the operations described herein may include, for example, one or more of the following: a transmit processor 220, a TX MIMO processor 230, a modulator 232, an antenna 234, a demodulator 232, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246. In some aspects, means for enabling wireless communication devices to perform the operations described herein may include, for example, one or more of the following: antenna 252, demodulator 254, MIMO detector 256, receiver processor 258, transmitter processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, or memory 282.

[0059] In some respects, wireless communication devices include means for replacing tail samples with samples of a reference signal after an inverse fast Fourier transform (IFFT) operation.

[0060] although Figure 2The boxes in the diagram are interpreted as different components, but the functions described above with respect to these boxes can be implemented using a single hardware component, software component, or combination of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 can be executed by controller / processor 280 or under the control of controller / processor 280. The functions described with respect to transmit processor 220, receive processor 238, and / or TX MIMO processor 230 can be executed by controller / processor 240 or under the control of controller / processor 280.

[0061] As indicated above, Figure 2 This is provided as an example. Other examples may differ from the one provided. Figure 2 The example described.

[0062] Figure 3 These are illustrations of examples 300, 310, and 320 illustrating the Channel State Information Reference Signal (CSI-RS) beam management procedures according to various aspects of this disclosure. Figure 3 As shown, examples 300, 310, and 320 include a UE 120 communicating with a base station 110 in a wireless network (e.g., wireless network 100). However, Figure 3 The devices shown are provided as examples, and the wireless network can support communication and beam management between other devices (e.g., between UE 120 and base station 110 or Transmitter-Receiver Point (TRP), between mobile termination node and control node, between Integrated Access and Backhaul (IAB) child node and IAB parent node, between scheduled node and scheduling node or other wireless communication devices, etc.). In some aspects, UE 120 and base station 110 can be in a connected state (e.g., Radio Resource Control (RRC) connected state).

[0063] like Figure 3 As shown, Example 300 may include base station 110 and UE 120 communicating to perform beam management using CSI-RS. Example 300 depicts a first beam management procedure (e.g., P1 CSI-RS beam management). The first beam management procedure may be referred to as a beam selection procedure, initial beam acquisition procedure, beam sweep procedure, cell search procedure, or beam search procedure. Figure 3 As shown in Example 300, CSI-RS can be configured to be transmitted from base station 110 to UE 120. CSI-RS can be configured to be periodic (e.g., using RRC signaling), semi-persistent (e.g., using Media Access Control Control Element (MAC-CE) signaling), and / or non-periodic (e.g., using Downlink Control Information (DCI)).

[0064] The first beam management procedure may include base station 110 performing beam sweeping on multiple transmit (Tx) beams. Base station 110 may use each transmit beam to transmit CSI-RS for beam management. To enable UE 120 to perform receive (Rx) beam sweeping, the base station may use the transmit beam to transmit (e.g., with repetition) each CSI-RS at multiple times within the same RS resource set, so that UE 120 can sweep the receive beam in multiple transmission instances. For example, if base station 110 has a set of N transmit beams and UE 120 has a set of M receive beams, CSI-RS can be transmitted M times on each of the N transmit beams, so that UE 120 can receive M instances of CSI-RS per transmit beam. In other words, for each transmit beam of base station 110, UE 120 can perform beam sweeping through each of UE 120's receive beams. As a result, the first beam management procedure enables UE 120 to use different receive beams to measure CSI-RS on different transmit beams, supporting the selection of beam pairs of base station 110 transmit beams / UE 120(th) receive beams. UE 120 can report the measurements to base station 110 so that base station 110 can select one or more beam pairs for communication between base station 110 and UE 120. Although Example 300 has been described in conjunction with CSI-RS, the first beam management procedure can also use SSB to perform beam management in a similar manner as described above.

[0065] like Figure 3 As shown, Example 310 may include base station 110 and UE 120 communicating to perform beam management using CSI-RS. Example 310 depicts a second beam management procedure (e.g., P2 CSI-RS beam management). This second beam management procedure may be referred to as a beam refinement procedure, base station beam refinement procedure, TRP beam refinement procedure, transmit beam refinement procedure, etc. Figure 3As shown in Example 310, CSI-RS can be configured to be transmitted from base station 110 to UE 120. CSI-RS can be configured to be aperiodic (e.g., using DCI). A second beam management procedure may include base station 110 performing beam sweeping on one or more transmit beams. The one or more transmit beams may be a subset of all transmit beams associated with base station 110 (e.g., determined at least in part based on measurements reported by UE 120 in conjunction with the first beam management procedure). Base station 110 may use each of the one or more transmit beams to transmit CSI-RS for beam management. UE 120 may use a single (e.g., the same) receive beam to measure each CSI-RS (e.g., determined at least in part based on measurements performed in conjunction with the first beam management procedure). The second beam management procedure may enable base station 110 to select the optimal transmit beam based at least in part on measurements of CSI-RS reported by UE 120 (e.g., measured by UE 120 using a single receive beam).

[0066] like Figure 3 As shown, Example 320 depicts a third beam management procedure (e.g., P3 CSI-RS beam management). This third beam management procedure may be referred to as a beam refinement procedure, UE beam refinement procedure, receive beam refinement procedure, etc. Figure 3 As shown in Example 320, one or more CSI-RS can be configured to be transmitted from base station 110 to UE 120. The CSI-RS can be configured to be aperiodic (e.g., using DCI). A third beam management procedure may include base station 110 using a single transmit beam to transmit one or more CSI-RS (e.g., determined at least in part based on measurements reported by UE 120 in conjunction with the first and / or second beam management procedures). To enable UE 120 to perform receive beam sweeping, the base station may use the transmit beam to transmit (e.g., with repetition) CSI-RS at multiple times within the same RS resource set, allowing UE 120 to sweep one or more receive beams in multiple transmission instances. The one or more receive beams may be a subset of all receive beams associated with UE 120 (e.g., determined at least in part based on measurements performed in conjunction with the first and / or second beam management procedures). The third beam management procedure enables base station 110 and / or UE 120 to select the optimal receive beam based at least in part on reported measurements received from UE 120 (e.g., reported measurements of the CSI-RS of the transmit beam using one or more receive beams).

[0067] As indicated above, Figure 3 This is provided as an example of a beam management procedure. Other examples of beam management procedures may differ from those provided above.Figure 4 Examples described. For instance, UE 120 and base station 110 may execute a third beam management procedure before executing a second beam management procedure, or UE 120 and base station 110 may execute a similar beam management procedure to select the UE transmit beam.

[0068] Figures 1-3 This is a diagram illustrating example 400 of a wireless communication device according to various aspects of this disclosure, specifically a transmit (Tx) chain 402 and a receive (Rx) chain 404. The wireless communication device may be a base station or a UE (e.g., Figure 2 (Base station 110 or UE 120 as depicted). In some respects, one or more components of Tx chain 402 may be combined as described above. Figure 2 The described transmit processor 264, TX MIMO processor 266, MOD / DEMOD 254, controller / processor 280, etc., are implemented in these components. In some aspects, the Tx chain 402 can be implemented in the UE 120 for transmitting data 406 (e.g., uplink data, uplink reference signals, uplink control information, etc.) to the base station 110 over the uplink channel. In some aspects, one or more components of the Tx chain 402 can be combined as described above. Figure 2 The Tx chain 402 is implemented in the described transmit processor 220, TX MIMO processor 230, MOD / DEMOD 234, controller / processor 240, etc. In some aspects, the Tx chain 402 may be implemented in the base station 110 for transmitting data 406 (e.g., uplink data, uplink reference signals, uplink control information, etc.) to the UE 120 on the downlink channel.

[0069] Encoder 407 can convert signal (e.g., bit stream) 403 into data 406. The data 406 to be transmitted is provided as input from encoder 407 to serial-to-parallel (S / P) converter 408. In some aspects, S / P converter 408 can split the transmitted data into N parallel data streams 410.

[0070] N parallel data streams 410 can then be provided as input to mapper 412. Mapper 412 can map the N parallel data streams 410 onto N constellation points. The mapping can be accomplished using modulation constellations such as binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 8-phase shift keying (8PSK), quadrature amplitude modulation (QAM), etc. Thus, mapper 412 can output N parallel symbol streams 416, each symbol stream 416 corresponding to one of the N quadrature subcarriers of IFFT component 420. These N parallel symbol streams 416 are represented in the frequency domain and can be converted by IFFT component 410 into N parallel time-domain sample streams 418.

[0071] In some respects, N parallel modulations in the frequency domain correspond to N modulation symbols in the frequency domain. These N modulation symbols are equal to N mappings and N-point IFFTs in the frequency domain, which is equivalent to one (useful) OFDM symbol in the time domain, which is equal to N samples in the time domain. One OFDM symbol Ns in the time domain is equal to Ncp (the number of guard samples per OFDM symbol) + N (the number of useful samples per OFDM symbol).

[0072] N parallel time-domain sample streams 418 can be converted into an OFDM / OFDMA symbol stream 422 by a parallel-to-serial (P / S) converter 424. A guard insertion component 426 can insert guard intervals between successive OFDM / OFDMA symbols in the OFDM / OFDMA symbol stream 422. The output of the guard insertion component 426 can then be up-converted to the desired transmission frequency band by a radio frequency (RF) front-end 428. The antenna 430 can then transmit the obtained signal 432.

[0073] In some respects, Rx Chain 404 can utilize OFDM / OFDMA. In some respects, one or more components of Rx Chain 404 can be combined as described above. Figure 2 The described receiver processor 258, MIMO detector 256, MOD / DEMOD 254, controller / processor 280, etc., are implemented in these components. In some aspects, the Rx chain 404 can be implemented in the UE 120 for receiving data 406 (e.g., downlink data, downlink reference signals, downlink control information, etc.) from the base station 110 on the downlink channel. In some aspects, one or more components of the Rx chain 404 can be combined as described above. Figure 4 The described receiver processor 238, MIMO detector 236, MOD / DEMOD 234, controller / processor 240, etc. are implemented in this manner. In some aspects, the Rx chain 404 may be implemented in the base station 110 for receiving data 406 (e.g., uplink data, uplink reference signals, uplink control information, etc.) from the UE 120 on the uplink channel.

[0074] The transmitted signal 432 is shown traveling from Tx chain 402 to Rx chain 404 on wireless channel 434. When signal 432' is received by antenna 430', the received signal 432' can be down-converted to a baseband signal by RF front end 428'. Protection removal component 426' can then remove the protection interval inserted between OFDM / OFDMA symbols by protection insertion component 426.

[0075] The output of the protection removal component 426' can be provided to the S / P converter 424'. This output can include an OFDM / OFDMA symbol stream 422', and the S / P converter 424' can divide the OFDM / OFDMA symbol stream 422' into N parallel time-domain symbol streams 418', each corresponding to one of N orthogonal subcarriers. The Fast Fourier Transform (FFT) component 420' can convert the N parallel time-domain symbol streams 418' into the frequency domain and output N parallel frequency-domain symbol streams 416'.

[0076] Demapper 412' performs the inverse operation of the symbol mapping operation performed by mapper 412, thereby outputting N parallel data streams 410'. P / S converter 408' combines the N parallel data streams 410' into a single data stream 406'. Ideally, data stream 406' corresponds to the data 406 provided as input to Tx chain 402. Data stream 406' can be decoded by decoder 407' into decoded data stream 403'.

[0077] Figure 4 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 4 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 4 The two or more components shown can be implemented within a single component, or Figure 4 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 4 The set of components shown (e.g., one or more components) can be executed as described by Figure 5 The other set of components shown performs one or more functions.

[0078] NR networks can operate in high-frequency bands with large bandwidth. Several types of waveforms can be used for high-bandwidth communication. One type of waveform can include single-carrier frequency-domain waveforms, such as DFT-s-OFDM waveforms. Single-carrier frequency-domain waveforms can have a low peak-to-average power ratio (PAPR) to achieve better coverage and / or efficient bandwidth utilization (potentially eliminating the need for guard bands). Single-carrier time-domain waveforms can also have low FFT complexity. On the other hand, OFDM waveforms can have efficient bandwidth utilization but with higher PAPR and higher spectral efficiency.

[0079] Some of the communications in these waveforms can use CP (Programmable Continuous) which is used to help eliminate inter-symbol interference. CP can be a repetition of information from a previous symbol, which is used as a protection against inter-symbol interference.

[0080] Figure 5 This is a diagram illustrating example 500 of a CP for beam switching according to various aspects of this disclosure.

[0081] Example 500 illustrates the CP at the beginning of each time slot of the first beam (beam n) and the beginning of each time slot of the second beam (beam n+1). A time slot can be the duration of one symbol or multiple symbols. Time slots can be used for synchronization signal blocks (SSBs) or other FFT data. The CP at the beginning of each time slot provides a time interval for beam switching. Beam switching can take approximately 100 nanoseconds (ns).

[0082] NR can use a variety of frequency ranges. One frequency range to consider for use in NR is frequency range 4, which can range from approximately 52 GHz to approximately 114.25 GHz, and can use licensed bands, unlicensed bands, or a combination of licensed and unlicensed bands.

[0083] For higher frequency bands (including those exceeding 100 GHz), the subcarrier spacing (SCS) can be increased (e.g., 960 kHz, 1920 kHz, 3480 kHz) to combat phase noise and increase the total channelization bandwidth with a manageable FFT size. However, as the SCS increases, the symbol time duration (Tsymb) and CP time duration (Tcp) decrease proportionally. Example 500 shows a table of increased SCS sizes, where Tcp and Tsymb decrease as the SCS size increases. If Tcp drops below 100 ns, the time available for beam switching (e.g., 100 ns) may not be absorbed by the symbol's CP. Without an additional explicit gap, beam switching may not be completed before the symbol's data content begins. One solution to provide more switching time is to skip symbols to allow beam switching, but this wastes time and signaling resources. Another solution is to change the CP size as needed. However, this means the FFT size may differ for different symbols. The receiver may have to be configured to handle multiple FFT sizes, which complicates the receiver design and increases overhead.

[0084] According to the various aspects described herein, a transmitting device (e.g., a transmitting wireless communication device) may concatenate modulated samples and padding samples of the data content prior to a DFT multiplexing operation for a first communication. The padding sample may be, for example, zero (zero sample). The transmitting device may add a CP after the DFT operation. The first communication may thus include the CP at the beginning of the first communication, the data content, and the tail sample at the end of the first communication. A receiving device (e.g., a receiving wireless communication device) may receive the first communication and use a time gap formed by at least the tail sample to initiate a gapping action, such as beam switching or switching from downlink reception to uplink transmission. In some aspects, the time gap may be formed solely by the tail sample. In some aspects, the time gap may be formed by at least the tail sample and also by the CP at the beginning of a second communication in a subsequent time slot (e.g., a symbol). The receiving device may complete the gapping action within the time gap, the length of which may be greater than a single CP. In this way, the receiving device may have sufficient time to switch beams, switch carriers, or perform another gapping action. As a result, the receiving device can transmit or receive a second communication without using explicit gaps between time slots, saving time and signaling resources. CP size can also remain consistent, thus avoiding additional overhead.

[0085] As indicated above, Figure 5 Some examples are provided. Other examples may differ from those provided. Figure 6 The example described.

[0086] Figures 1-2 This is a diagram illustrating Example 600 for forming a time gap with tail samples in a high-frequency band according to various aspects of this disclosure. Example 600 shows the components in the transmission chain of a transmitting device. The transmitting device is a wireless communication device, such as a base station (e.g., Figures 1-2 The base station 110 depicted in the text) or UE (e.g., Figures 1-2 (UE120 as depicted in the text). The transmitting device can communicate using a wireless link to the receiving device, which is a wireless communication device, such as a base station (e.g., Figures 1-2 The base station 110 depicted in the text) or UE (e.g., Figure 6 UE 120 as depicted in the document.

[0087] The transmitting device may include an S / P converter 608, a DFT component 610 for extending the uplink shared channel, a subcarrier mapper component 612 for mapping the output of the DFT extension to subbands (e.g., physical subcarriers) of the output signal, an IFFT component 614 for performing an inverse FFT to prepare the uplink shared channel or output signal for transmission, a P / S converter 616, and a CP insertion component 618. The transmitting device may generate a first communication, which includes a CP 620 at the beginning of the first communication, data content 622, and a tail sample 624 at the end of the first communication. The first communication may be a single symbol of a larger communication or may include multiple symbols.

[0088] As indicated by reference numeral 630, the transmitting device may concatenate modulated samples and padding samples of the data content before the DFT multiplexing operation is performed by the DFT component 610 for the first communication. The padding samples may be, for example, random modulated samples, repeating data modulated samples, reference signal samples, or low-energy samples (e.g., zero). In Example 600, the padding sample is shown as zero.

[0089] In some respects, transmitter equipment with faster switching capabilities can use non-zero samples. For example, such transmitter equipment can use reference signal samples for channel estimation or use repeated data modulation samples to enhance data reception with symbol combinations. Using non-zero samples can also involve a lower PAPR for increased coverage, because the energy difference between non-zero samples and data samples is smaller than the energy difference between zero samples and data samples.

[0090] As shown by reference numeral 635, the transmitting device may use CP insertion component 618 to add a CP to the start of the first communication after the DFT and IFFT operations. The transmitting device may use a consistent length for the CP and FFT from one symbol to another. The first communication may include a CP 620 at the start of the first communication, data content 622, and a tail sample 624 at the end of the first communication. If the padding sample has a length L, the DFT has a length M, and the IFFT has a length N, then the tail sample of the first communication may have a length L*N / M. As shown by reference numeral 640, the transmitting device may transmit the first communication.

[0091] As indicated above, Figure 6 This is provided as an example. Other examples may differ from the one provided. Figure 7 The example described.

[0092] Figure 7 These are illustrations of examples 700 and 702 illustrating the formation of time gaps with tail samples in a high-frequency band according to various aspects of this disclosure.

[0093] Example 700 illustrates a time slot 704 formed by tail samples (TS) for communication transmitted by a transmitting device in a first time slot and / or received by a receiving device in that first time slot. The first time slot can be used for a single symbol, and tail samples can form a sub-symbol gap. The first time slot can alternatively be used for multiple symbols or other sample groups. The receiving device can initiate gap operations. For example, as indicated by reference numeral 706, the receiving device can switch beams or carriers during time slot 704. The receiving device can complete beam or carrier switching within time slot 704. Alternatively or additionally, the transmitting device can perform gap operations, such as switching beams or carriers, during time slot 704.

[0094] Example 702 illustrates a time gap 708 formed by a tail sample at the end of a first time gap and a CP at the beginning of a second time gap that follows or immediately after the first time gap. The receiving device can initiate and complete a gap operation within time gap 708, which in Example 702 extends into the second time gap. Combining the tail sample and the initial CP of two adjacent time gaps provides a larger time gap for beam or carrier switching at high frequencies. If each communication is generated using a DFT operation, adding some low-energy samples (e.g., zeros), random modulation samples, or duplicated modulation samples before the DFT operation utilizes existing mechanisms that do not provide additional FFT complexity or CP overhead.

[0095] In some respects, a gap action or another action may be initiated within a time gap but not completed within that time gap. For example, a gap action may begin in a time gap but be completed later in that symbol or in another symbol. In this case, the receiving or transmitting device may still benefit from the additional time provided by the tail sample. In another example, an action may be initiated but may not be completed due to the fulfillment of a specified condition or threshold. The action may not be completed due to a detected fault or an undetected fault.

[0096] As indicated above, Figure 7 Some examples are provided. Other examples may differ from those provided. Figure 8 The example described.

[0097] Figure 8 These are illustrations of examples 800 and 802 illustrating the formation of time gaps for tail samples in the high-frequency band according to various aspects of this disclosure.

[0098] If zero (or other low-energy samples) are used as padding samples, tail samples provide available space to add other samples before transmission. Example 800 illustrates that the transmitting device can use reference signal samples to replace zero tail symbols, such as after an IFFT operation. Replacing zero tail samples with reference signal samples can include adding reference signal samples to zero tail samples that appear in communications from a P / S converter (e.g., P / S converter 616). The reference signal sample can be added before CP insertion. Time gap 804 can be formed by the reference signal sample and the CP of the next communication. The receiving device can use the reference signal sample for timing, phase, or frequency estimation.

[0099] Example 802 may involve a larger time gap than Example 800. Example 802 illustrates adding a reference signal sample to a zero tail sample after CP insertion. If the tail sample duration is longer than the reference signal sample duration, some tail sample space can be reserved. This space can form a time gap together with the CP of the next communication. In this way, the receiving device can use the reference signal sample for estimation purposes in addition to using a larger time gap for beam switching.

[0100] As indicated above, Figure 8 Some examples are provided. Other examples may differ from those provided. Figure 9 The example described.

[0101] Figures 1-3 This is a diagram illustrating an example process 900 performed, for example, by a wireless communication device acting as a receiving device, according to various aspects of this disclosure. Example process 900 is in which a wireless communication device (e.g., Figure 9 The example depicted is a base station 110 or UE 120 performing an operation associated with a time gap having a tail sample in a high-frequency band.

[0102] like Figure 11 As shown, in some aspects, process 900 may include: receiving a first CP at the beginning of a first time slot, data content, and a tail sample at the end of the first time slot (block 910). For example, a wireless communication device (e.g., using...) Figure 9 The receiving component 1102 described herein can receive, as described above, a first CP at the beginning of the first time slot, data content, and a tail sample at the end of the first time slot.

[0103] like Figure 11 As further shown, in some aspects, process 900 may include: initiating a gap action during the reception of tail samples, the gap action occurring within a time gap formed by at least the tail samples (box 920). For example, a wireless communication device (e.g., using...) Figure 9The action component 1108 depicted therein can initiate a gap action during the receipt of the tail sample, the gap action occurring within a time gap formed by at least the tail sample, as described above.

[0104] like Figure 11 As further shown, in some aspects, process 900 may include: completing the gap action within the time gap (box 930). For example, a wireless communication device (e.g., using...) Figure 9 The action component 1108 described herein can complete the interval action within the time interval, as described above. This may include completing beam switching, carrier switching, or direction (uplink / downlink) switching.

[0105] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0106] In the first aspect, the time gap is further formed by a second CP at the beginning of the second time gap following the first time gap.

[0107] In the second aspect, either alone or in combination with the first aspect, the intermittent action includes switching beams.

[0108] In a third aspect, either alone or in combination with one or more of the first and second aspects, the gap operation includes switching from downlink reception in the first time slot to uplink transmission in the second time slot following the first time slot.

[0109] In the fourth aspect, the waveforms used for the first CP, data content, and tail sample, alone or in combination with one or more of the first to third aspects, are single-carrier frequency domain waveforms.

[0110] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the single-carrier frequency domain waveform is a DFT-s-OFDM waveform.

[0111] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the tail sample includes a sample with energy that satisfies the energy threshold.

[0112] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the tail sample includes zero.

[0113] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the tail sample includes randomly modulated samples.

[0114] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the tail sample includes a sample of the reference signal.

[0115] In the tenth aspect, either alone or in combination with one or more of the first to ninth aspects, the tail sample includes one or more repeated portions of the data content.

[0116] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, the tail sample includes repeated data modulation samples.

[0117] although Figure 9 An example box of process 900 is shown, but in some respects, process 900 may include... Figure 10 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 900 can be executed in parallel.

[0118] Figures 1-3 This is a diagram illustrating an example process 1000 performed, for example, by a wireless communication device acting as a transmitter, according to various aspects of this disclosure. Example process 1000 is in which a wireless communication device (e.g., Figure 10 The example depicted (base station 110 or UE 120) performs operations associated with forming time gaps for tail samples in the high-frequency band.

[0119] like Figure 12 As shown, in some aspects, process 1000 may include: concatenating modulated samples and padding samples of the data content prior to the DFT multiplexing operation for the first communication (block 1010). For example, a wireless communication device (e.g., using...) Figure 10 The generation component 1208 described herein can concatenate modulated samples and padding samples of the data content prior to the DFT multiplexing operation for the first communication, as described above.

[0120] like Figure 12 As further shown, in some aspects, process 1000 may include: adding a first CP to the start of the first communication after performing a DFT multiplexing operation on the cascaded samples to generate the first communication (box 1020). For example, a wireless communication device (e.g., using...) Figure 10 The generation component 1208 described herein can add a first CP sample to the beginning of the first communication after performing a DFT multiplexing operation on the cascaded samples to generate the first communication, as described above. In some aspects, the first communication may include a first CP sample, data content, and a tail sample corresponding to the padding sample.

[0121] like Figure 12 As further shown, in some aspects, process 1000 may include: transmitting the first communication in a first time slot (block 1030). For example, a wireless communication device (e.g., using...) Figure 10The transmission component 1204 described herein can transmit the first communication in the first time slot, as described above.

[0122] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0123] In the first aspect, the tail sample formation time gap allows the receiving device to perform gap actions that occur within that time gap.

[0124] In the second aspect, either alone or in combination with the first aspect, the time slot is further formed by a second CP of a second communication in a second time slot following the first time slot.

[0125] In the third aspect, either alone or in combination with one or more of the first and second aspects, the waveform used for the first communication is a single-carrier frequency domain waveform.

[0126] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the single-carrier frequency domain waveform is a DFT-s-OFDM waveform.

[0127] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the tail sample has energy that satisfies the energy threshold.

[0128] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the filling sample includes zero.

[0129] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 1000 includes: replacing the tail sample with a sample of the reference signal after the inverse fast Fourier transform operation.

[0130] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the tail sample is replaced by a sample of the reference signal before the first CP is added to the start of the first communication.

[0131] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the tail sample is replaced by one or more of the samples of zero or the reference signal after the first CP is added to the start of the first communication.

[0132] In the tenth aspect, either alone or in combination with one or more of the first to ninth aspects, the filling sample includes a randomly modulated sample.

[0133] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, the filling sample comprises one or more repeated portions of the modulated sample of data content.

[0134] although Figure 10 An example box of process 1000 is shown, but in some respects, process 1000 may include... Figure 11 The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes of process 1000 can be executed in parallel.

[0135] Figures 1-8 This is a block diagram of an example device 1100 for wireless communication. Device 1100 may be a wireless communication device (such as a UE or base station), or a wireless communication device may include device 1100. In some aspects, device 1100 includes a receiving component 1102 and a transmitting component 1104, which may be in communication with each other (e.g., via one or more buses and / or one or more other components). As shown, device 1100 may use the receiving component 1102 and the transmitting component 1104 to communicate with another device 1106 (such as a UE, base station, or another type of wireless communication device). As further shown, device 1100 may include an operating component 1108, etc.

[0136] In some respects, device 1100 may be configured to perform the functions described herein. Figure 9 One or more operations as described herein. Additionally or alternatively, device 1100 may be configured to perform one or more processes described herein (such as...). Figure 11 The process 900). In some aspects, the device 1100 and / or Figure 2 One or more components shown may include the above combination Figure 11 One or more components of the described UE. Additionally or alternatively, Figure 2 One or more components shown can be combined as described above. Figure 2 Implemented within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of that component.

[0137] Receiver 1102 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from device 1106. Receiver 1102 may provide the received communications to one or more other components of device 1100. In some aspects, receiver 1102 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) and may provide the processed signal to one or more other components of device 1106. In some aspects, receiver 1102 may include combinations thereof. Figure 2 The described UE includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0138] Transmission component 1104 can transmit communications (such as reference signals, control information, data communications, or combinations thereof) to device 1106. In some aspects, one or more other components of device 1106 can generate communications and provide the generated communications to transmission component 1104 for transmission to device 1106. In some aspects, transmission component 1104 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and can transmit the processed signals to device 1106. In some aspects, transmission component 1104 can include combinations of the above. Figure 11 The described UE includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 1104 may be co-located with the receive component 1102 in a transceiver.

[0139] The receiving component 1102 can receive a first CP at the beginning of a first time slot, data content, and a tail sample at the end of the first time slot. The action component 1108 can initiate a gap action during the reception of the tail sample, the gap action occurring within a time gap formed by at least the tail sample. The action component 1108 can complete the gap action within the time gap.

[0140] Figure 11 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 11 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 11 The two or more components shown can be implemented within a single component, or Figure 11 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 11 The component collection (one or more components) shown in the diagram can be executed as described by... Figure 12The other set of components shown in the diagram performs one or more functions.

[0141] Figures 1-8 This is a block diagram of an example device 1200 for wireless communication. Device 1200 may be a wireless communication device (such as a UE or base station), or a wireless communication device may include device 1200. In some aspects, device 1200 includes a receiving component 1202 and a transmitting component 1204, which may be in communication with each other (e.g., via one or more buses and / or one or more other components). As shown, device 1200 may use the receiving component 1202 and the transmitting component 1204 to communicate with another device 1206 (such as a UE, a base station, or another type of wireless communication device). As further shown, device 1200 may include a generating component 1208, etc.

[0142] In some respects, device 1200 can be configured to perform the functions described herein. Figure 10 One or more operations as described herein. Additionally or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein (such as...). Figure 12 Process 1000). In some aspects, apparatus 1200 and / or Figure 2 One or more components shown may include the above combination Figure 12 One or more components of the described wireless communication device. Additionally or alternatively, Figure 2 One or more components shown can be combined as described above. Figure 2 Implemented within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of that component.

[0143] Receiver 1202 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from device 1206. Receiver 1202 may provide the received communications to one or more other components of device 1200. In some aspects, receiver 1202 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) and may provide the processed signal to one or more other components of device 1206. In some aspects, receiver 1202 may include combinations thereof. Figure 2 The described wireless communication device includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memories, or combinations thereof.

[0144] The transmission component 1204 can transmit communications (such as reference signals, control information, data communications, or combinations thereof) to the device 1206. In some aspects, one or more other components of the device 1206 can generate communications and provide the generated communications to the transmission component 1204 for transmission to the device 1206. In some aspects, the transmission component 1204 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and can transmit the processed signals to the device 1206. In some aspects, the transmission component 1204 may include combinations of the above. Figure 12 The described wireless communication device includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof. In some aspects, the transmit component 1204 may be co-located with the receive component 1202 in a transceiver.

[0145] The generation component 1208 can concatenate modulated samples and padding samples of the data content before the DFT multiplexing operation for the first communication. After performing a DFT multiplexing operation on the concatenated samples to generate the first communication, the generation component 1208 can add a first CP to the start of the first communication, wherein the first communication includes the first CP, the data content, and tail samples corresponding to the padding samples. The transmission component 1204 can transmit the first communication in a first time slot. The generation component 1208 can replace the tail samples with samples of a reference signal after the inverse fast Fourier transform operation.

[0146] Figure 12 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 12 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 12 The two or more components shown can be implemented within a single component, or Figure 12 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 12 The component collection (one or more components) shown in the diagram can be executed as described by... ​ The other set of components shown in the diagram performs one or more functions.

[0147] The following provides an overview of the various aspects of this disclosure:

[0148] Aspect 1: A wireless communication method performed by a wireless communication device, comprising: receiving a first cyclic prefix (CP), data content, and a tail sample at the end of the first time slot during a first time slot; initiating a gap action during receiving the tail sample, the gap action occurring within a time gap formed by at least the tail sample; and completing the gap action within the time gap.

[0149] Aspect 2: The method of aspect 1, wherein the time gap is further formed by a second CP at the beginning of a second time gap following the first time gap.

[0150] Aspect 3: The method of aspect 1 or 2, wherein the gap action includes switching beams.

[0151] Aspect 4: The method of any of Aspects 1-3, wherein the gap action includes switching from downlink reception in the first time slot to uplink transmission in a second time slot following the first time slot.

[0152] Aspect 5: The method of any of Aspects 1-3, wherein the waveforms used for the first CP, the data content, and the tail sample are single-carrier frequency domain waveforms.

[0153] Aspect 6: The method of aspect 5, wherein the single-carrier frequency domain waveform is a direct Fourier transform extended orthogonal frequency division multiplexing (DFT-s-OFDM) waveform.

[0154] Aspect 7: The method of any of Aspects 1-6, wherein the tail sample includes samples with energy that satisfies an energy threshold.

[0155] Aspect 8: The method of any of Aspects 1-7, wherein the tail sample includes zero.

[0156] Aspect 9: The method of any of Aspects 1-8, wherein the tail sample comprises a randomly modulated sample.

[0157] Aspect 10: The method of any of Aspects 1-9, wherein the tail sample includes a sample of the reference signal.

[0158] Aspect 11: The method of any of Aspects 1-10, wherein the tail sample includes one or more repeated portions of the data content.

[0159] Aspect 12: The method of any of Aspects 1-11, wherein the tail sample comprises repeated data modulation samples.

[0160] Aspect 13: A wireless communication method performed by a wireless communication device, comprising: concatenating modulated samples and padding samples of data content prior to a Discrete Fourier Transform (DFT) multiplexing operation for a first communication; adding a first cyclic prefix (CP) to the start of the first communication after performing the DFT multiplexing operation on the concatenated samples to generate the first communication, wherein the first communication includes the first CP, the data content, and a tail sample corresponding to the padding sample; and transmitting the first communication in a first time slot.

[0161] Aspect 14: The method of aspect 13, wherein the tail sample forms a time gap for the receiving device to perform a gap action occurring within the time gap.

[0162] Aspect 15: The method of aspect 14, wherein the time gap is further formed by a second CP of a second communication in a second time gap following the first time gap.

[0163] Aspect 16: The method of any of Aspects 13-15, wherein the waveform used for the first communication is a single-carrier frequency domain waveform.

[0164] Aspect 17: The method of aspect 16, wherein the single-carrier frequency domain waveform is a direct Fourier transform extended orthogonal frequency division multiplexing (DFT-s-OFDM) waveform.

[0165] Aspect 18: The method of any of Aspects 13-17, wherein the tail sample has energy that satisfies an energy threshold.

[0166] Aspect 19: The method of any of Aspects 13-18, wherein the filling sample includes zeros.

[0167] Aspect 20: The method of any of Aspects 13-19 further includes: replacing the tail sample with a sample of the reference signal after the inverse fast Fourier transform operation.

[0168] Aspect 21: The method of aspect 20, wherein the tail sample is replaced by a sample of a reference signal before the first CP is added to the start of the first communication.

[0169] Aspect 22: The method of aspect 20, wherein the tail sample is replaced by one or more of a sample of a zero or a reference signal after the first CP is added to the start of the first communication.

[0170] Aspect 23: The method of any of Aspects 13-22, wherein the filling sample comprises a randomly modulated sample.

[0171] Aspect 24: The method of any of Aspects 13-23, wherein the filling sample comprises one or more repeated portions of the modulated sample of the data content.

[0172] Aspect 25: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as described in one or more of aspects 1 to 24.

[0173] Aspect 26: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform methods as described in one or more aspects of aspects 1 to 24.

[0174] Aspect 27: An apparatus for wireless communication, comprising at least one means for performing a method as described in one or more aspects of aspects 1 to 24.

[0175] Aspect 28: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform methods as described in one or more aspects of aspects 1 to 24.

[0176] Aspect 29: A non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions which, when executed by one or more processors of a device, cause the device to perform methods as described in one or more aspects of aspects 1 to 24.

[0177] The foregoing disclosure provides explanations and descriptions, 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 foregoing disclosure or may be obtained through practice.

[0178] As used herein, the term "component" is intended to be broadly interpreted as hardware and / or a combination of hardware and software. "Software" should be broadly interpreted as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and / or functions, whether referred to as software, firmware, middleware, microcode, hardware description languages, or other terms. As used herein, processors are implemented using hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented in various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limited in any way. Thus, the operation and behavior of these systems and / or methods are described herein without reference to any specific software code—it is understood that software and hardware can be designed to implement these systems and / or methods, at least in part, based on the descriptions herein.

[0179] As used in this article, depending on the context, a threshold can refer to a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0180] Although specific combinations of features are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of aspects. In fact, many of these features can be combined in ways not specifically described in the claims and / or not disclosed in the specification. Although each dependent claim listed below may be directly subordinated to only one claim, the disclosure of aspects includes each dependent claim being combined with each other claim in this set of claims. As used herein, the phrase “at least one of” refers to any combination of these items, including single members. 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 having multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).

[0181] The elements, actions, or instructions used herein should not be construed as critical or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “a certain” are intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used herein, the article “the” is intended to include one or more items referenced in conjunction with the article “the” and may be used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items) and may be used interchangeably with “one or more.” Where only one item is intended, the phrase “only one” or similar language is used. Moreover, as used herein, the terms “have,” “contain,” “include,” etc., are intended to be open-ended terms. Additionally, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Moreover, as used herein, the term “or” is intended to be inclusive when used in a sequence and may be used interchangeably with “and / or” unless otherwise explicitly stated (e.g., in combination with “either of” or “only one of”).

Claims

1. A wireless communication device for wireless communication, comprising: Memory; as well as One or more processors are operatively coupled to the memory, and the memory and the one or more processors are configured to: In a first time slot, a first cyclic prefix (CP), data content, and a tail sample at the end of the first time slot are received at the beginning of the first time slot. The tail sample includes a random modulation sample, a repeating portion of the data content, or a repeating portion of the modulation sample used for the data content. A gap action is initiated during the reception of the tail sample, the gap action occurring within a time gap formed by at least the tail sample; as well as The gap action is completed within the time gap.

2. The wireless communication device as described in claim 1, wherein, The time gap is further formed by a second CP at the beginning of the second time gap following the first time gap.

3. The wireless communication device as described in claim 1, wherein, The intermittent action includes switching beams.

4. The wireless communication device as described in claim 1, wherein, The gap action includes switching from downlink reception in the first time slot to uplink transmission in a second time slot following the first time slot.

5. The wireless communication device as claimed in claim 1, wherein, The waveforms used for the first CP, the data content, and the tail sample are single-carrier frequency domain waveforms.

6. The wireless communication device as described in claim 5, wherein, The single-carrier frequency domain waveform is a Direct Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform.

7. The wireless communication device as claimed in claim 1, wherein, The tail sample includes samples with energy that meets the energy threshold.

8. The wireless communication device as claimed in claim 1, wherein, The tail sample includes zero.

9. The wireless communication device as claimed in claim 1, wherein, The tail sample includes a sample of the reference signal.

10. A wireless communication device for wireless communication, comprising: Memory; as well as One or more processors are operatively coupled to the memory, and the memory and the one or more processors are configured to: The modulated and padded samples of the data content are concatenated before the Discrete Fourier Transform (DFT) multiplexing operation for the first communication; After performing the DFT multiplexing operation on the cascaded samples to generate the first communication, a first cyclic prefix (CP) is added to the beginning of the first communication, wherein the first communication includes the first CP, the data content, and a tail sample corresponding to the padding sample, the tail sample including a random modulation sample, a repeating portion of the data content, or a repeating portion of the modulation sample used for the data content; and The first communication is transmitted in the first time slot.

11. The wireless communication device as claimed in claim 10, wherein, The tail sample formation time gap allows the receiving device to perform gap actions that occur within the time gap.

12. The wireless communication device as claimed in claim 11, wherein, The time gap is further formed by the second CP of the second communication in the second time gap following the first time gap.

13. The wireless communication device as claimed in claim 10, wherein, The waveform used for the first communication is a single-carrier frequency domain waveform.

14. The wireless communication device as claimed in claim 13, wherein, The single-carrier frequency domain waveform is a Direct Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform.

15. The wireless communication device as claimed in claim 10, wherein, The tail sample has energy that meets the energy threshold.

16. The wireless communication device as claimed in claim 10, wherein, The filled sample includes zeros.

17. The wireless communication device as claimed in claim 10, wherein, The one or more processors are further configured to replace the tail sample with a sample of the reference signal after the inverse fast Fourier transform operation.

18. The wireless communication device as claimed in claim 17, wherein, The tail sample is replaced by a sample of the reference signal before the first CP is added to the start of the first communication.

19. The wireless communication device as claimed in claim 18, wherein, The tail sample is replaced by one or more of a sample of zero or a reference signal after the first CP is added to the start of the first communication.

20. A wireless communication method performed by a wireless communication device, comprising: In a first time slot, a first cyclic prefix (CP), data content, and a tail sample at the end of the first time slot are received at the beginning of the first time slot. The tail sample includes a random modulation sample, a repeating portion of the data content, or a repeating portion of the modulation sample used for the data content. A gap action is initiated during the reception of the tail sample, the gap action occurring within a time gap formed by at least the tail sample; as well as The gap action is completed within the time gap.

21. The method of claim 20, wherein, The time gap is further formed by a second CP at the beginning of the second time gap following the first time gap.

22. The method of claim 20, wherein, The gap action includes switching beams or switching from downlink reception in the first time slot to uplink transmission in a second time slot following the first time slot.

23. The method of claim 20, wherein, The tail sample includes one or more of the following: a sample with energy that meets the energy threshold, zero, and a sample of the reference signal.

24. A wireless communication method performed by a wireless communication device, comprising: The modulated and padded samples of the data content are concatenated before the Discrete Fourier Transform (DFT) multiplexing operation for the first communication; After performing the DFT multiplexing operation on the cascaded samples to generate the first communication, a first cyclic prefix (CP) is added to the beginning of the first communication, wherein the first communication includes the first CP, the data content, and a tail sample corresponding to the padding sample, the tail sample including a random modulation sample, a repeating portion of the data content, or a repeating portion of the modulation sample used for the data content; and The first communication is transmitted in the first time slot.

25. The method of claim 24, wherein, The filled sample includes zeros.

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