Bandwidth Partial Switching
By configuring multiple BWPs and specifying switch types, the BWP switching inefficiencies in satellite networks are addressed, resulting in improved communication reliability and reduced latency.
Patent Information
- Application Number
- JP2022577707
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-06-29
- Filing Date
- 2021-06-30
- Publication Date
- 2025-08-21
- Estimated Expiration
- 2041-06-30
AI Technical Summary
Existing wireless communication systems, particularly in non-terrestrial networks, face challenges with inefficient bandwidth portion (BWP) switching due to limited BWP configurations, leading to connectivity issues and increased latency during fast beam switching in satellite communications.
Configuring multiple BWPs associated with beams and indicating the type of switch (intra-beam or inter-beam) to facilitate efficient BWP switching, enabling more reliable communications with reduced latency and increased throughput.
Enhances communication reliability and reduces latency by allowing seamless BWP transitions in satellite networks, accommodating faster beam changes and improving overall network performance.
Smart Images

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Abstract
Description
[Technical Field]
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This patent application claims priority to U.S. Provisional Patent Application No. 63 / 047,515, filed July 2, 2020, entitled "BANDWIDTH PART SWITCHING," and U.S. Non-Provisional Patent Application No. 17 / 304,955, filed June 29, 2021, entitled "BANDWIDTH PART SWITCHING," which are expressly incorporated herein by reference.
[0002] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for bandwidth portion switching. [Background technology]
[0003] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. A typical wireless communication system may utilize multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is a set of extensions to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the 3rd Generation Partnership Project (3GPP®).
[0004] A wireless network may include several base stations (BSs) that can support communication for several user equipments (UEs). The UEs may communicate with the BSs via a downlink and an uplink. The "downlink" (or "forward link") refers to the communication link from the BS to the UE, and the "uplink" (or "reverse link") refers to the communication link from the UE to the BS. As described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit / receive point (TRP), New Radio (NR) BS, 5G Node B, etc.
[0005] The above multiple access technologies have been adopted in various telecommunications standards to provide common protocols that enable different user equipment to communicate at city, national, regional, and even global levels. NR, sometimes referred to as 5G, is a set of extensions to the LTE mobile standard promulgated by 3GPP. NR is designed to improve spectral efficiency, reduce costs, improve service, utilize new spectrum, and better support mobile broadband Internet access by using orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP) (CP-OFDM) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL) to better integrate with other open standards, as well as by supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As demand for mobile broadband access continues to grow, further improvements in LTE, NR, and other radio access technologies remain useful. Summary of the Invention [Means for solving the problem]
[0006] In some aspects, a user equipment (UE) for wireless communication includes a memory and one or more processors coupled to the memory, wherein the one or more processors are configured to receive a BWP configuration indicating one or more bandwidth portions (BWPs) associated with at least one beam and to switch from a first BWP of the one or more BWPs as an active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration.
[0007] In some aspects, a wireless communication device for wireless communication includes a memory and one or more processors coupled to the memory, wherein the one or more processors are configured to transmit a BWP configuration to a UE indicating one or more BWPs associated with at least one beam and switch from a first BWP of the one or more BWPs as an active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration.
[0008] In some aspects, a method of wireless communication performed by a UE includes receiving a BWP configuration indicating one or more BWPs associated with at least one beam; and switching from a first BWP of the one or more BWPs as an active BWP to a second BWP of the one or more BWPs as an active BWP based at least in part on the BWP configuration.
[0009] In some aspects, a method of wireless communication performed by a wireless communication device includes transmitting a BWP configuration to a UE indicating one or more BWPs associated with at least one beam; and switching from a first BWP of the one or more BWPs as an active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration.
[0010] In some aspects, a non-transitory computer-readable medium storing one or more instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the one or more processors to receive a BWP configuration indicating one or more BWPs associated with at least one beam and switch from a first BWP of the one or more BWPs as the active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration.
[0011] In some aspects, a non-transitory computer-readable medium storing one or more instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a wireless communication device, cause the one or more processors to send a BWP configuration to a UE indicating one or more BWPs associated with at least one beam, and to switch from a first BWP of the one or more BWPs as the active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration.
[0012] In some aspects, an apparatus for wireless communication includes means for receiving a BWP configuration indicating one or more BWPs associated with at least one beam; and means for switching from a first BWP of the one or more BWPs as an active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration.
[0013] In some aspects, an apparatus for wireless communication includes means for transmitting a BWP configuration indicating one or more BWPs associated with at least one beam to a user equipment, and means for switching from a first BWP of the one or more BWPs as an active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration.
[0014] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as fully described herein with reference to and as illustrated by the drawings and this specification.
[0015] The foregoing has outlined rather broadly the features and technical advantages of examples according to the present disclosure in order that the following Detailed Description may be better understood. Additional features and advantages are described below. The concepts and examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent structures do not depart from the scope of the appended claims. The nature of the concepts disclosed herein, both their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in conjunction with the accompanying drawings. Each of the figures is provided for the purpose of illustration and description, and not as a definition of the limits of the claims.
[0016] Although aspects are described in this disclosure by illustrating some examples, those skilled in the art will understand that such aspects can be implemented in many different configurations and scenarios. The techniques described herein may be implemented using different platform types, devices, systems, shapes, sizes, and / or packaging configurations. For example, some aspects may be implemented by integrated chip embodiments or other non-modular component-based devices (e.g., end-user devices, vehicles, communications devices, computing devices, industrial equipment, retail / purchasing devices, medical devices, or artificial intelligence-enabled devices). Aspects may be implemented with chip-level components, modular components, non-modular components, non-chip-level components, device-level components, or system-level components. Devices incorporating the described aspects and features may include additional components and features for the implementation and practice of the claims and described embodiments. For example, transmission and reception of wireless signals may include several components for analog and digital purposes (e.g., antennas, radio frequency chains, power amplifiers, modulators, buffers, processors, interleavers, adders, or summers). It is contemplated that aspects described herein may be practiced in a wide variety of devices, components, systems, distributed configurations, or end-user devices of various sizes, shapes, and configurations.
[0017] So that the above-mentioned features of the present disclosure may be understood in detail, a more detailed description, briefly summarized above, may be had by reference to embodiments, some of which are shown in the accompanying drawings. It should be noted, however, that the present description may admit of other equally effective embodiments, and therefore, that the accompanying drawings illustrate only some typical embodiments of the present disclosure and should not be considered limiting of its scope. The same reference numbers in different drawings may identify the same or similar elements. [Brief explanation of the drawings]
[0018] [Figure 1] FIG. 1 illustrates an example wireless network in accordance with the present disclosure. [Figure 2] FIG. 1 illustrates an example of a base station communicating with user equipment (UE) in a wireless network according to the present disclosure. [Figure 3] 1 illustrates an example of a regenerative satellite deployment in a non-terrestrial network (NTN) and an example of a transparent satellite deployment in accordance with the present disclosure. [Figure 4] FIG. 1 illustrates an example of beam management within an NTN according to the present disclosure. [Figure 5] FIG. 1 illustrates an example associated with bandwidth portion (BWP) switching, according to an aspect of the present disclosure. [Figure 6] FIG. 1 illustrates an example associated with bandwidth portion (BWP) switching, according to an aspect of the present disclosure. [Figure 7] FIG. 1 illustrates an example associated with bandwidth portion (BWP) switching, according to an aspect of the present disclosure. [Figure 8] FIG. 1 illustrates an example associated with bandwidth portion (BWP) switching, according to an aspect of the present disclosure. [Figure 9] FIG. 1 illustrates an example process associated with BWP switching in accordance with the present disclosure. [Figure 10] FIG. 1 illustrates an example process associated with BWP switching in accordance with the present disclosure. DETAILED DESCRIPTION OF THE INVENTION
[0019] Various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure may be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are intended so that this disclosure will be exhaustive and complete, and will fully convey the scope of the disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will appreciate that the scope of the present disclosure is intended to encompass any aspect of the present disclosure disclosed herein, whether implemented independently or in combination with any other aspect of the present disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects described herein. In addition, the scope of the present disclosure is intended to encompass such apparatuses or methods practiced using other structure, functionality, or structure and functionality in addition to or other than the various aspects of the disclosure described herein. It should be understood that any aspect of the present disclosure disclosed herein may be embodied by one or more elements of a claim.
[0020] Several aspects of telecommunications systems are presented herein with reference to various apparatus and techniques. These apparatus and techniques are described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the particular application and design constraints imposed on the overall system.
[0021] It should be noted that although aspects may be described herein using terminology commonly associated with 5G or NR radio access technologies (RATs), aspects of the present disclosure may apply to other RATs, such as 3G RATs, 4G RATs, and / or RATs subsequent to 5G (e.g., 6G).
[0022] FIG. 1 illustrates an example wireless network 100 according to the present disclosure. The wireless network 100 may be an element of or include a 5G (NR) network and / or an LTE network, among other examples. The wireless network 100 may include several base stations 110 (denoted as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with user equipment (UE) and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, transmit / receive point (TRP), etc. Each BS may provide communication coverage for a particular geographic area. In 3GPP, the term "cell" can refer to the coverage area of a BS and / or the BS subsystem serving this coverage area, depending on the context in which the term is used.
[0023] A BS may provide communication coverage for a macrocell, a picocell, a femtocell, and / or another type of cell. A macrocell may cover a relatively large geographic area (e.g., a few kilometers in radius) and may allow unrestricted access by UEs with service subscriptions. A picocell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femtocell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs that have an association with the femtocell (e.g., UEs in a Closed Subscriber Group (CSG)). A BS for a macrocell may be referred to as a macro BS. A BS for a picocell may be referred to as a pico BS. A BS for a femtocell may be referred to as a femto BS or a home BS. 1, BS 110a may be a macro BS for a macro cell 102a, BS 110b may be a pico BS for a pico cell 102b, and BS 110c may be a femto BS for a femto cell 102c. A BS may support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” may be used interchangeably herein.
[0024] In some aspects, the cells may not necessarily be stationary, and the geographic area of the cells may move according to the location of the mobile BS. In some aspects, the BSs may be interconnected to each other and / or to one or more other BSs or network nodes (not shown) in wireless network 100 through various types of backhaul interfaces, such as direct physical connections or virtual networks, using any suitable transport network.
[0025] Wireless network 100 may also include relay stations. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send the data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. In the example shown in FIG. 1, relay BS 110d may communicate with BS 110a and UE 120d to facilitate communication between macro BS 110a and UE 120d. A relay BS may also be called a relay station, a relay base station, a relay, etc.
[0026] In some aspects, wireless network 100 may include one or more non-terrestrial network (NTN) deployments within which non-terrestrial wireless communication devices may include BSs (interchangeably referred to herein as "non-terrestrial BSs" and "non-terrestrial base stations"), relay stations (interchangeably referred to herein as "non-terrestrial relay stations"), etc. As used herein, NTN may refer to a network to which access is facilitated by non-terrestrial BSs, non-terrestrial relay stations, etc.
[0027] Wireless network 100 may include any number of non-terrestrial wireless communication devices. The non-terrestrial wireless communication devices may include satellites, unmanned aerial system (UAS) platforms, etc. Satellites may include low Earth orbit (LEO) satellites, medium Earth orbit (MEO) satellites, geostationary Earth orbit (GEO) satellites, highly elliptical Earth orbit (HEO) satellites, etc. UAS platforms may include high-altitude platform stations (HAPS) and may include balloons, dirigibles, airplanes, etc. The non-terrestrial wireless communication devices may be part of a NTN separate from wireless network 100. Alternatively, the NTN may be part of wireless network 100. The satellites may communicate directly and / or indirectly with other entities in wireless network 100 using satellite communications. The other entities may include UEs, other satellites in one or more NTN deployments, other types of BSs (e.g., static or ground-based BSs), relay stations, one or more components and / or devices included within the core network of wireless network 100, etc.
[0028] Wireless network 100 may be a heterogeneous network including different types of BSs, such as macro BSs, pico BSs, femto BSs, and relay BSs. These different types of BSs may have different transmit power levels, different coverage areas, and different susceptibility to interference in wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5-40 watts), while a pico BS, femto BS, and relay BS may have a lower transmit power level (e.g., 0.1-2 watts).
[0029] Network controller 130 may couple to a set of BSs and provide coordination and control for these BSs. Network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly via wireless or wireline backhaul.
[0030] The UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be fixed or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. A UE may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.
[0031] Some UEs may be considered machine-type communication (MTC) UEs or evolved or enhanced machine-type communication (eMTC) UEs. MTC UEs and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that may communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered 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). The UE 120 may be included within a housing that houses components of the UE 120, such as a processor component and / or a memory component. In some aspects, the processor component and the memory component may be coupled to each other. For example, a processor component (e.g., one or more processors) and a memory component (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.
[0032] In general, any number of wireless networks may be deployed within a given geographic area. Each wireless network may support a particular RAT and may operate on one or more frequencies. A RAT may also be referred to as a radio technology, air interface, etc. A frequency may also be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, an NR RAT network or a 5G RAT network may be deployed.
[0033] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using a base station 110 as an intermediary for communicating with each other) using one or more sidelink channels. For example, the UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, a vehicle-to-everything (V2X) protocol (which may include, e.g., a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, etc.), and / or a mesh network. In this case, the UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the base station 110.
[0034] The devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various classes, bands, channels, etc. based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using an operating band having a first frequency range (FR1), which may range from 410 MHz to 7.125 GHz, and / or may communicate using an operating band having a second frequency range (FR2), which may range from 24.25 GHz to 52.6 GHz. Frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although portions of FR1 are higher than 6 GHz, FR1 is often referred to as the “sub-6 GHz” band. Similarly, FR2 is often referred to as the “millimeter wave” band, even though it is different from the extremely high frequency (EHF) band (30 GHz to 300 GHz), which is identified as the “millimeter wave” band by the International Telecommunications Union (ITU). Thus, unless otherwise specified, it should be understood that terms such as "sub-6 GHz," as used herein, can broadly refer to frequencies below 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise specified, it should be understood that terms such as "millimeter wave," as used herein, can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included within FR1 and FR2 may be modified, and the techniques described herein are applicable to those modified frequency ranges.
[0035] As indicated above, Figure 1 is provided as an example. Other examples may differ from the example described with respect to Figure 1.
[0036] 2 is a diagram illustrating an example base station 110 200 in communication with a UE 120 in wireless network 100 in accordance with the present disclosure. Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general T≧1 and R≧1.
[0037] At base station 110, transmit processor 220 may receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCSs) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for the UE, and provide data symbols to all UEs. Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or higher layer signaling) and may provide overhead and control symbols. Transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). A transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, control symbols, overhead symbols, and / or reference symbols, if applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.
[0038] At UE 120, antennas 252a through 252r may receive downlink signals from base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The term “controller / processor” may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine, among other examples, a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter. In some aspects, one or more components of the UE 120 may be included within a housing 284.
[0039] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.
[0040] Antennas (e.g., antennas 234a-234t and / or antennas 252a-252r) may include or be contained within one or more antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays, among other examples. An antenna panel, antenna group, set of antenna elements, and / or antenna array may include one or more antenna elements. An antenna panel, antenna group, set of antenna elements, and / or antenna array may include a set of coplanar antenna elements and / or a set of non-coplanar antenna elements. An antenna panel, antenna group, set of antenna elements, and / or antenna array may include antenna elements within a single housing and / or antenna elements within multiple housings. An antenna panel, antenna group, set of antenna elements, and / or antenna array may include one or more antenna elements coupled to one or more transmitting and / or receiving components, such as one or more components of FIG. 2.
[0041] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI) from a controller / processor 280. The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of the UE 120 may be included within a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detectors 256, receive processors 258, transmit processors 264, and / or TX MIMO processors 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 (e.g., as described with respect to FIGS. 5-10) to perform any aspects of the methods described herein.
[0042] At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by a demodulator 232, detected by a MIMO detector 236, if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to a controller / processor 240. The base station 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule the UE 120 for downlink and / or uplink communication. In some aspects, a modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included within a modem of the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receive processors 238, transmit processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 (e.g., as described with respect to FIGS. 5-10) to perform any aspects of the methods described herein.
[0043] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or any other components of FIG. 2 may perform one or more techniques associated with bandwidth portion (BWP) switching, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or any other components of FIG. 2 may perform or direct the operation of, for example, process 900 of FIG. 9, process 1000 of FIG. 10, and / or other processes as described herein. The memory 242 and the memory 282 may store data and program codes for the base station 110 and the UE 120, respectively. In some aspects, the memory 242 and / or the memory 282 may include a non-transitory computer-readable medium that stores one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed by one or more processors of the base station 110 and / or the UE 120 (e.g., immediately or after being compiled, converted, and / or interpreted), may cause the one or more processors, the UE 120, and / or the base station 110 to perform or direct operations of, e.g., process 900 of FIG. 9 , process 1000 of FIG. 10 , and / or other processes as described herein. In some aspects, executing the instructions may include executing the instructions, converting the instructions, compiling the instructions, and / or interpreting the instructions, among other examples.
[0044] In some aspects, the UE 120 may include means for receiving a BWP configuration indicating one or more BWPs associated with at least one beam, means for switching from a first BWP of the one or more BWPs as the active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration, etc. In some aspects, such means may include one or more components of the UE 120 described with respect to FIG. 2, such as the controller / processor 280, the transmit processor 264, the TX MIMO processor 266, the MOD 254, the antennas 252, the DEMOD 254, the MIMO detector 256, the receive processor 258, etc.
[0045] In some aspects, the base station 110 may include means for transmitting a BWP configuration indicating one or more BWPs associated with at least one beam to a user equipment, means for switching from a first BWP of the one or more BWPs as the active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration, etc. In some aspects, such means may include one or more components of the base station 110 described with respect to FIG. 2, such as the antennas 234, the DEMOD 232, the MIMO detector 236, the receive processor 238, the controller / processor 240, the transmit processor 220, the TX MIMO processor 230, the MOD 232, the antennas 234, etc.
[0046] 2 are illustrated as separate components, the functionality described above with respect to the blocks may be implemented with a single hardware component, a software component, or a combination of components, or various combinations of components. For example, the functionality described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 may be performed by or under the control of controller / processor 280.
[0047] As noted above, Figure 2 is provided as an example. Other examples may differ from those described with respect to Figure 2.
[0048] 3 illustrates example NTN deployments 300 and 310. Example 300 and / or example 310 may be similar to, include, or be included within a wireless network, such as wireless network 100 shown in and described in connection with FIG.
[0049] Example 300 illustrates a conceptual diagram of a regenerative satellite deployment. In example 300, UE 120 is served by satellite 320 via a service link 330. For example, satellite 320 may include BS 110 (e.g., BS 110a), one or more functions of BS 110 (e.g., RF filtering, frequency conversion, amplification, demodulation, decoding, switching, routing, coding, modulation, etc.), etc. The service link 330 may include an NR-Uu interface terminating at satellite 320. In some aspects, satellite 320 may be referred to as a non-terrestrial base station, a regenerative repeater, an on-board processing repeater, etc. In some aspects, satellite 320 may demodulate an uplink radio frequency signal and modulate a baseband signal derived from the uplink radio signal to produce a downlink radio frequency transmission. Satellite 320 may transmit the downlink radio frequency signal over service link 330. Satellite 320 may provide a cell covering UE 120.
[0050] Example 310 illustrates a transparent satellite deployment, sometimes referred to as a bent-pipe satellite deployment. In example 310, UE 120 is served by satellite 340 via service link 330. Satellite 340 may be referred to as a transparent satellite, a bent-pipe satellite, a non-terrestrial repeater, or the like. Satellite 340 may relay signals received from terrestrial BS 110 via NTN gateway 350. The satellite may repeat the NR-Uu interface via feeder link 360. NTN gateway 350 may communicatively connect satellite 340 and BS 110 using RF link 370. For example, satellite 340 may receive uplink radio frequency transmissions and transmit downlink radio frequency transmissions without demodulating the uplink radio frequency transmissions. In some aspects, satellite 340 may frequency convert the uplink radio frequency transmissions received on service link 330 to the frequency of the downlink radio frequency transmissions on feeder link 360 and may amplify and / or filter the uplink radio frequency transmissions. In some aspects, UE 120 is shown in example 300 and example 310 may be associated with Global Navigation Satellite Service (GNSS) capability, Global Positioning System (GPS) capability, etc., although not all UEs have such capability. Satellite 340 may provide and / or facilitate a cell covering UE 120.
[0051] The service link 330 may include a link between the satellite 340 and the UE 120 and may include one or more of an UL or DL. The feeder link 360 may include a link between the satellite 340 and the gateway 350 and may include one or more of an uplink (e.g., from the UE 120 to the gateway 350) or a downlink (e.g., from the gateway 350 to the UE 120).
[0052] The feeder link 360 and the service link 330 may each experience Doppler effects due to the movement of the satellites 320 and 340, and potentially the movement of the UE 120. These Doppler effects may be significantly greater than in terrestrial networks. While the Doppler effects on the feeder link 360 may be compensated for to some extent, they may still be associated with a certain amount of uncompensated frequency error. Furthermore, the gateway 350 may be associated with a residual frequency error, and / or the satellites 320 / 340 may be associated with an onboard frequency error. These sources of frequency error may cause the downlink frequency received at the UE 120 to drift from the target downlink frequency.
[0053] As noted above, Figure 3 is provided as an example. Other examples may differ from the example described with respect to Figure 3.
[0054] 4 is a diagram illustrating an example 400 of beam management within an NTN in accordance with the present disclosure. As shown, a satellite 405 may serve a UE 120. The satellite 405 may be, include, be included within, or be similar to the satellite 320 shown in FIG. 3, the satellite 340 shown in FIG. 3, etc.
[0055] As indicated by reference numeral 410, satellite 405 may use multiple antennas to form multiple beams (shown as "Beam 0," "Beam 1," ..., "Beam 21") that form a beam footprint on Earth. One or more different frequency intervals may be associated with each beam to mitigate interference between the beams, thereby facilitating simultaneous transmission and reception capabilities. In some cases, one or more different beams may be associated with a frequency interval. A frequency interval may be or include a BWP. Within each beam, multiple BWPs may be defined to accommodate different UE capabilities, quality of service (QoS) requirements, etc. Orthogonal frequency division multiple access (OFDM) subcarriers within a BWP are typically orthogonal to one another.
[0056] As the satellite 405 moves, the beam footprint moves across the Earth. Thus, as indicated by reference numeral 415, different beams may interact with the UE 120 as the satellite 405 moves. For example, as shown, the UE 120 may be located within a footprint associated with a first beam (shown as “Beam 2”) at a first time instance, and as the satellite 405 moves, the UE 120 may be located within a footprint associated with a second beam (shown as “Beam 3”). The satellite may move at high speeds, for example, as fast as 7 kilometers per second or faster. As a result, the UE 120 may frequently switch beams. To mitigate the Doppler effect that occurs as the satellite 405 moves, the satellite 405 may perform frequency precompensation. The frequency precompensation may target the center 420 of the beam footprint.
[0057] In a typical scenario, the network may configure all of the beams from the satellite 405 as a cell with an initial BWP pair (uplink and downlink) associated with each beam. The satellite 405 may signal the UE 120 to which BWP to switch as the beam footprint moves relative to the UE 120. However, terrestrial NR supports at most four configured BWPs for each UE 120. As a result, the currently supported configurations may not be sufficient to support the fast beam switching associated with NTN deployments. As indicated by reference numeral 410, as the satellite moves in the direction of arrow 430, the number of BWPs to which the UE 120 can switch may be greater than four (e.g., seven in the illustrated example). Therefore, connectivity with the satellite 405 may be lost and / or latency may be introduced if a BWP configuration is implemented.
[0058] According to various aspects of the techniques and apparatus described herein, a wireless communication device (which may include a non-terrestrial base station, such as a satellite, a terrestrial base station, etc.) may configure multiple BWPs associated with beams for a particular UE and may indicate to the UE the type of switching that each BWP supports. For example, the indication may indicate whether a switch from a first BWP to a second BWP is an intra-beam switch or an inter-beam switch. In this manner, aspects may facilitate efficient BWP switching and robust configuration. As a result, aspects may enable more reliable communications with reduced latency and increased throughput.
[0059] As noted above, Figure 4 is provided as an example. Other examples may differ from those described with respect to Figure 4.
[0060] 5 is a diagram illustrating an example 500 associated with a BWP switch in accordance with the present disclosure. As shown, a wireless communication device 505 and a UE 120 may be in communication with one another. The wireless communication device 505 may include a base station (e.g., the BS 110 shown in and described with respect to FIG. 1), a non-terrestrial base station (e.g., the satellite 320 shown in and described with respect to FIG. 3, the satellite 405 shown in and described with respect to FIG. 4, etc.), a non-terrestrial relay station (e.g., the satellite 340 shown in and described with respect to FIG. 3, the satellite 405 shown in and described with respect to FIG. 4, etc.), etc.
[0061] As indicated by reference numeral 510, the wireless communication device 505 may transmit, and the UE 120 may receive, BWP configuration information. In some aspects, the BWP configuration may be conveyed in a radio link control (RRC) message, a downlink control information (DCI), a medium access control (MAC) control element (MAC-CE), a system information block (SIB), etc. The BWP configuration may indicate one or more BWPs associated with at least one beam. For example, as shown, the BWP configuration may indicate several BWPs (denoted as UL BWP1, UL BWP2, DL BWP1, and DL BWP2) corresponding to a first beam 515, several BWPs (e.g., UL BWP3, UL BWP4, DL BWP3, and DL BWP4) corresponding to a second beam 520, etc.
[0062] In some aspects, one BWP of the one or more BWPs may be associated with a beam of the serving wireless communication device 505 or a beam of an additional wireless communication device 505. In some aspects, as shown, the BWP configuration may indicate a first initial uplink (UL) BWP (UL BWP1) associated with the first beam 515, a first initial downlink (DL) BWP (DL BWP1) associated with the first beam 515, a second initial UL BWP (UL BWP3) associated with the second beam 520, a second initial DL BWP (DL BWP3) associated with the second beam 520, etc.
[0063] In some aspects, the BWP configuration may indicate a first default UL BWP (UL BWP2) associated with the first beam 515, a first default DL BWP (DL BWP2) associated with the first beam 515, a second default UL BWP (UL BWP4) associated with the second beam 520, a second default DL BWP (DL BWP4) associated with the second beam 520, etc. In some aspects, the BWP configuration may not include a configuration of the at least one default BWP associated with the at least one beam. In some such cases, the at least one configured initial BWP associated with the at least one beam may be the at least one default BWP.
[0064] In some aspects, the BWP configuration indicates a maximum number of BWPs. In some aspects, the maximum number of BWPs may be greater than 4 (e.g., 5, 6, 7, 8, etc.). In some aspects, the maximum number of BWPs may include a maximum number of intra-beam BWPs, a maximum number of inter-beam BWPs, etc.
[0065] In some aspects, the BWP configuration may indicate an inter-beam BWP switching procedure, as indicated by reference numeral 525. The BWP configuration may indicate a first BWP (e.g., UL BWP1), an association between the first BWP and the first beam 515, a second BWP (e.g., UL BWP3), an association between the second BWP (UL BWP3) and the beam 520, etc.
[0066] In some aspects, the inter-beam BWP switching procedure may be configured using an RRC message, SIB, etc. In some aspects, the BWP configuration may be carried within an RRC message indicating the second BWP (UL BWP3) as the target BWP for switching. In some aspects, the second BWP may include an active UL BWP or an active DL BWP. In some aspects, the RRC message may include a setup message (e.g., an RRC Setup message), a reconfiguration message (e.g., an RRC Reconfiguration message), etc.
[0067] As indicated by reference numeral 530, the BWP configuration may indicate an intra-beam BWP switching procedure, a first BWP (UL BWP1), an association between the first BWP (UL BWP1) and the first beam 515, a second BWP (UL BWP2), an association between the second BWP (UL BWP2) and the first beam 515, etc. In some aspects, the intra-beam BWP switching procedure may be configured using RRC messages.
[0068] As indicated by reference numeral 535, the wireless communication device 505 may transmit, and the UE 120 may receive, an indication of one or more beam parameters associated with at least one beam. In some aspects, the wireless communication device 505 may broadcast the indication. In some aspects, the one or more beam parameters may indicate a Doppler frequency precompensation value associated with the at least one beam, a target position within a beam footprint associated with the at least one beam, a timing adjustment parameter associated with the at least one beam, etc. In some aspects, the target position may include a center position of the beam footprint. In some aspects, the timing adjustment parameter may include an offset parameter corresponding to a delay component between the wireless communication device 505 and the user equipment 120 within the beam footprint.
[0069] The UE 120 may transmit, and the wireless communication device 505 may receive, an indication of a maximum beam switching time associated with the UE 120 or an indication of an antenna type associated with the UE 120, as indicated by reference numeral 540. The maximum beam switching time may indicate a maximum amount of time utilized by the UE 120 to switch from one beam to another. The wireless communication device 505 may determine the beam switching time based at least in part on the maximum beam switching time or the antenna type. In some aspects, the antenna type may include a motor steered antenna type, an active electronically scanned array type, etc.
[0070] As indicated by reference numeral 545, the wireless communication device 505 may transmit, and the UE 120 may receive, a beam switching time configuration. The beam switching time configuration may indicate a beam switching time associated with switching by the UE 120 from a first beam to a second beam as the active beam. In some aspects, the wireless communication device 505 may transmit, and the UE 120 may receive, a precompensation switching time configuration. In some aspects, the precompensation switching time configuration may indicate a precompensation switching time associated with switching by the UE 120 from a first frequency precompensation to a second frequency precompensation as the active precompensation.
[0071] As indicated by reference numeral 550, UE 120 may perform a BWP switching procedure to switch from a first BWP to a second BWP as an active BWP based at least in part on a BWP configuration. In some aspects, the BWP switching procedure may include an inter-beam BWP switching procedure, where the first BWP and the second BWP are associated with different beams. In some aspects, the BWP switching procedure may include an intra-beam BWP switching procedure, where the first BWP and the second BWP are associated with the same beam. In some aspects, UE 120 can switch from the first BWP as the active BWP to the second BWP as the active BWP and from the serving beam to the target beam associated with the second BWP within a configured switching time delay. In some aspects, the BWP switching may occur within a configured switching time delay based at least in part on the target beam being different from the serving beam.
[0072] As noted above, Figure 5 is provided as an example. Other examples may differ from the example described with respect to Figure 5.
[0073] 6 is a diagram illustrating an example 600 associated with a BWP switch in accordance with the present disclosure. As shown, a wireless communication device 605 and a UE 120 may be in communication with each other. The wireless communication device 605 may be the wireless communication device 505 shown in and described with respect to FIG. 5 or may be similar to the wireless communication device 505.
[0074] As indicated by reference numeral 610, the wireless communication device 605 may transmit, and the UE 120 may receive, one (or more) RRC messages including a BWP configuration. The BWP configuration may indicate an intra-beam BWP. In some aspects, the intra-beam BWP may be a BWP associated with the current serving beam (e.g., a beam used to carry the RRC message). As indicated by reference numeral 615, the wireless communication device 605 may transmit, and the UE 120 may receive, a configuration for an inter-beam BWP. The inter-beam BWP may include a BWP associated with a beam other than the serving beam. In some aspects, the intra-beam BWP and the inter-beam BWP may be indexed separately. The inter-beam BWP may be conveyed using an RRC message, a SIB, etc.
[0075] In some aspects, the inter-beam BWP may include an initial BWP associated with another beam, a default BWP associated with another beam, etc. For example, in some aspects, the inter-beam BWP may include the initial BWP of the target beam, and after the UE 120 switches to the initial BWP and the corresponding target beam, the wireless communication device 605 may transmit an additional BWP configuration indicating the intra-beam BWP associated with the target beam (which would now be the new serving beam).
[0076] The wireless communication device 605 may transmit, and the UE 120 may receive, a target BWP and a BWP type associated with the target BWP, as indicated by reference numeral 620. In some aspects, this BWP configuration may be referred to as a BWP switch trigger, a BWP switch message, etc. In some aspects, the BWP configuration, as indicated by reference numeral 620, may be carried within a DCI. In some aspects, a BWP type indicator may be carried within an encoded communication that includes the DCI. The UE 120 may directly decode a physical downlink control channel (PDCCH) payload that includes the encoded communication to extract the BWP type indicator.
[0077] The DCI may include a first set of indices associated with intra-beam BWPs and a second set of indices associated with inter-beam BWPs. In some aspects, the BWP configuration may be carried in a DCI with a BWP identification (ID) field having a maximum number of bits greater than 2. In this way, the BWP ID field may be able to accommodate more than four configured BWPs to allow greater flexibility in BWP configuration.
[0078] As indicated by reference numeral 625, UE 120 may determine a BWP type of the target BWP, and as indicated by reference numeral 630, UE 120 may switch to the target BWP. In some examples, UE 120 may determine the BWP type using a procedure based at least in part on how the BWP type is indicated using the DCI. In some aspects, the DCI may indicate the BWP type using a BWP type having at least one bit, and UE 120 may directly decode the PDCCH payload including the DCI to extract the at least one bit. For example, the DCI may include DCI format 0_1 or DCI format 1_1, and a bit may be added to indicate the BWP type (e.g., "0" may indicate an intra-beam BWP and "1" may indicate an inter-beam BWP, or vice versa).
[0079] In some aspects, the DCI may indicate a BWP type using a scrambling sequence applied to a rate-matched channel encoder output. A first scrambling sequence may indicate a first BWP type, and a second scrambling sequence may indicate a second BWP type. In some aspects, the UE 120 may blindly decode a PDCCH payload including the DCI using the first scrambling sequence and the second scrambling sequence to determine the BWP type.
[0080] In some aspects, the DCI may indicate a BWP type using a radio network temporary identifier (RNTI). In some aspects, a first RNTI of a first subtype may indicate a first BWP type, and a second RNTI of a second subtype may indicate a second BWP type. The RNTI may include a cell RNTI (C-RNTI), a configured scheduling RNTI (CS-RNTI), a modulation and coding scheme cell RNTI (MCS-C-RNTI), etc. For example, in some aspects, a C-RNTI subtype 0 may indicate an intra-beam BWP, a C-RNTI subtype 1 may indicate an inter-beam BWP, etc. In some aspects, the UE 120 may blindly decode a PDCCH payload including the DCI using the first RNTI subtype and the second RNTI subtype to determine the BWP type.
[0081] In some aspects, the DCI may indicate a BWP type using a DMRS sequence. In some aspects, a first DMRS sequence may indicate a first BWP type, and a second DMRS sequence may indicate a second BWP type. UE 120 may determine the BWP type by examining both DMRS sequences and determining which DMRS sequence results in an accurate cyclic redundancy check (CRC). An accurate CRC may include a CRC that produces no errors or a CRC that produces a number of errors that meets a certain error threshold.
[0082] As noted above, Figure 6 is provided as an example. Other examples may differ from the example described with respect to Figure 6.
[0083] 7 is a diagram illustrating an example 700 associated with a BWP switch in accordance with the present disclosure. As shown, a wireless communication device 705 and a UE 120 may be in communication with each other. The wireless communication device 705 may be, or may be similar to, the wireless communication device 505 shown and described in connection with FIG. 5, the wireless communication device 605 shown and described in connection with FIG. 6, etc.
[0084] As indicated by reference numeral 710, the wireless communication device 705 may transmit, and the UE 120 may receive, an RRC message including a BWP configuration. In some aspects, the BWP configuration may configure a BWP ID field to include a tuple having a unique tuple ID. In some aspects, the tuple ID may indicate a BWP ID and a beam ID. In some aspects, the beam ID may include a cell ID, a synchronization signal block (SSB) index, a dedicated beam ID, etc.
[0085] In some aspects, the beam ID may indicate a target beam. As indicated by reference numeral 715, the wireless communication device 705 may transmit, and the UE 120 may receive, a DCI indicating a tuple indicating a target BWP and a corresponding target beam. In some aspects, the DCI may include a tuple in a BWP ID field. In some aspects, the number of bits in the BWP ID field may be greater than two.
[0086] The wireless communication device 705 and / or the UE 120 may identify a target beam based at least in part on a determination that the UE 120 is likely to intercept the beam (e.g., interact with, co-locate with, pass through, etc.). In some aspects, the wireless communication device 705 and / or the UE 120 may determine that the UE 120 is likely to intercept a particular beam based at least in part on the mobility state of the beam, the mobility state of the UE 120, etc. For example, in some aspects, the wireless communication device 705 may determine that the UE 120 is likely to intercept a particular beam by determining that the probability of the UE 120 and the beam interacting within a specified amount of time meets a specified probability threshold based on the trajectory, velocity, acceleration, etc. of the beam (and / or the wireless communication device 705 generating the beam).
[0087] As indicated by reference numeral 720, UE 120 may determine a target BWP and a target beam. UE 120 may determine the target BWP and the target beam based at least in part on the tuple ID. As indicated by reference numeral 725, UE 120 may perform a BWP switching procedure based at least in part on the target BWP and the target beam. In some aspects, UE 120 may reset a default BWP associated with UE 120 to correspond to the default BWP associated with the target beam associated with the second BWP.
[0088] As noted above, Figure 7 is provided as an example. Other examples may differ from the example described with respect to Figure 7.
[0089] 8 is a diagram illustrating an example 800 associated with a BWP switch in accordance with the present disclosure. As shown, a wireless communication device 805 and a UE 120 may be in communication with each other. The wireless communication device 805 may be or may be similar to the wireless communication device 505 shown in and described with respect to FIG. 5, the wireless communication device 605 shown in and described with respect to FIG. 6, the wireless communication device 705 shown in and described with respect to FIG. 7, etc.
[0090] As indicated by reference numeral 810, the wireless communication device 805 may transmit, and the UE 120 may receive, an intra-beam BWP ID. As indicated by reference numeral 815, the wireless communication device 805 may transmit, and the UE 120 may receive, an inter-beam BWP ID. In some aspects, the intra-beam BWP ID and the inter-beam BWP ID may be signaled separately in a manner that reduces signaling overhead. For example, in some aspects, the intra-beam BWP ID may be carried in the DCI and the inter-beam BWP ID may be carried in the MAC-CE. In some aspects, the intra-beam BWP ID may be carried in the DCI and the inter-beam BWP ID may be carried in an RRC message. In some aspects, the intra-beam BWP ID may be carried in the MAC-CE or RRC message and the inter-beam BWP ID may be carried in the DCI.
[0091] In some aspects, the inter-beam BWP ID may be carried within a dedicated DCI format. In some aspects, the dedicated DCI format may include a set of resource elements indicating an inter-beam BWP ID, a wireless communication device ID, a beam ID, etc. In some aspects, the inter-beam BWP ID may indicate an initial UL BWP, an initial DL BWP, a default UL BWP, a default DL BWP, etc. In some aspects, the beam ID may include a cell ID, an SSB index, a dedicated beam ID, etc.
[0092] In some aspects, the wireless communication device 805 may indicate a dedicated DCI format to the UE 120. In some aspects, the indication may include an RRC configured search space, a format ID field in the C-RNTI and DCI used to address the UE 120, an inter-beam BWP switching RNTI used to address the UE 120, a designated scrambling sequence applied to the rate matched channel encoder output, a designated DMRS sequence, a dedicated DCI format ID to be encoded in the encoded message including the DCI, etc.
[0093] The UE 120 may transmit, and the wireless communication device 805 may receive, a feedback message as indicated by reference numeral 820. In some aspects, the feedback message may acknowledge receipt of the DCI. The UE 120 may perform a BWP switching procedure to switch to the indicated target BWP as indicated by reference numeral 825. The wireless communication device 805 may transmit, and the UE 120 may receive, a resource allocation as indicated by reference numeral 830. In some aspects, the wireless communication device 805 may transmit the resource allocation based at least in part on receiving the feedback message. In some aspects, the resource allocation may include uplink resources, and the UE 120 may transmit a scheduling report using the uplink resources and the target BWP.
[0094] As noted above, Figure 8 is provided as an example. Other examples may differ from the example described with respect to Figure 8.
[0095] 9 illustrates an example process 900 performed, for example, by a UE, in accordance with the present disclosure. The example process 900 is an example of a UE (such as, for example, UE 120) performing operations associated with a BWP switch.
[0096] 9, in some aspects, process 900 may include receiving a BWP configuration indicating one or more BWPs associated with at least one beam (block 910). For example, as described above, a UE (e.g., using receive processor 258, controller / processor 280, memory 282, etc.) may receive a BWP configuration indicating one or more BWPs associated with at least one beam.
[0097] 9, in some aspects, process 900 may include switching from a first BWP of the one or more BWPs as the active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration (block 920). For example, as described above, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may switch from a first BWP of the one or more BWPs as the active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration.
[0098] Process 900 may include additional aspects, such as any single aspect or any combination of aspects, described below and / or in connection with one or more other processes described elsewhere herein.
[0099] With regard to process 900, in some aspects, the BWP configuration is carried in at least one of an RRC message, a DCI, a MAC-CE, a SIB, or a combination thereof.
[0100] With regard to process 900, in some aspects at least one beam is associated with a non-terrestrial wireless communication device.
[0101] With respect to process 900, in some aspects the non-terrestrial wireless communications device is a non-terrestrial base station or a non-terrestrial relay station.
[0102] With respect to process 900, in some aspects the process includes receiving, from a wireless communication device associated with the at least one beam, a broadcast message including an indication of one or more beam parameters associated with the at least one beam, the one or more beam parameters indicating at least one of a Doppler frequency precompensation value associated with the at least one beam, a target position within a beam footprint associated with the at least one beam, a timing adjustment parameter associated with the at least one beam, or a combination thereof.
[0103] With respect to process 900, in some embodiments, the target location comprises a central location of the beam footprint.
[0104] With respect to process 900, in some aspects the timing adjustment parameter includes an offset parameter corresponding to a delay component between the wireless communication device and the UE within the beam footprint.
[0105] With respect to process 900, in some aspects, the BWP configuration indicates a first initial UL BWP associated with a first beam, a first initial DL BWP associated with the first beam, a second initial UL BWP associated with a second beam, and a second initial DL BWP associated with the second beam.
[0106] With respect to process 900, in some aspects, the BWP configuration indicates a first default UL BWP associated with a first beam, a first default DL BWP associated with the first beam, a second default UL BWP associated with a second beam, and a second default DL BWP associated with the second beam.
[0107] With respect to process 900, in some aspects, the BWP configuration does not include a configuration of at least one default BWP associated with the at least one beam, and the at least one configured initial BWP associated with the at least one beam includes the at least one default BWP.
[0108] With respect to process 900, in some aspects the process includes receiving a beam switching time configuration indicating a beam switching time associated with a UE switching from a first beam to a second beam as an active beam.
[0109] With regard to process 900, in some aspects the process includes transmitting an indication of a maximum beam switching time associated with the UE, the beam switching time being based at least in part on the maximum beam switching time.
[0110] With regard to process 900, in some aspects the process includes transmitting an indication of an antenna type associated with the UE, wherein the beam switching time is based at least in part on the antenna type.
[0111] With respect to process 900, in some aspects the antenna type includes at least one of a motor-steered antenna type, an active electronically scanned array type, or a combination thereof.
[0112] With respect to process 900, in some aspects, the process includes receiving a precompensation switching time configuration indicating a precompensation switching time associated with switching by the user equipment from a first frequency precompensation to a second frequency precompensation as active precompensation.
[0113] With respect to process 900, in some aspects, the process includes switching from a first BWP to a second BWP by performing a BWP switching procedure, including an inter-beam BWP switching procedure in which the first BWP is associated with a first beam of at least one beam and the second BWP is associated with a second beam of at least one beam, or an intra-beam BWP switching procedure in which the first BWP is associated with at least one first beam and the second BWP is associated with the first beam of at least one beam.
[0114] With respect to process 900, in some aspects, the BWP configuration indicates an inter-beam BWP switching procedure, a first BWP, an association between the first BWP and a first beam, a second BWP, an association between the second BWP and a second beam, or a combination thereof.
[0115] With respect to process 900, in some aspects, the inter-beam BWP switching procedure is configured using at least one of an RRC message, an SIB, or a combination thereof.
[0116] With respect to process 900, in some aspects, the BWP configuration indicates an intra-beam BWP switching procedure, a first BWP, an association between the first BWP and the first beam, a second BWP, an association between the second BWP and the first beam, or a combination thereof.
[0117] With respect to process 900, in some aspects, the intra-beam BWP switching procedure is configured using RRC messages.
[0118] With respect to process 900, in some aspects, the BWP configuration indicates a maximum number of BWPs.
[0119] With respect to process 900, in some embodiments, the maximum number of BWPs is greater than four.
[0120] With respect to process 900, in some aspects, the maximum number of BWPs includes a maximum number of intra-beam BWPs, a maximum number of inter-beam BWPs, or a combination thereof.
[0121] With respect to process 900, in some aspects, one BWP of the one or more BWPs is associated with a beam of a serving wireless communication device or a beam of an additional wireless communication device.
[0122] With regard to process 900, in some aspects, the BWP configuration is carried in an RRC message indicating the second BWP as a target BWP for switching.
[0123] With respect to process 900, in some aspects the second BWP comprises an active UL BWP or an active DL BWP.
[0124] With regard to process 900, in some aspects the RRC message includes a setup message or a reconfiguration message.
[0125] With respect to process 900, in some aspects, the process includes switching from a first BWP as the active BWP to a second BWP as the active BWP, and from the serving beam to a target beam associated with the second BWP, within a configured switching time delay based at least in part on the target beam being different from the serving beam.
[0126] With respect to process 900, in some aspects, the BWP configuration is conveyed in a DCI that includes a first set of indices associated with intra-beam BWPs and a second set of indices associated with inter-beam BWPs.
[0127] With respect to process 900, in some aspects, the BWP configuration is carried in a DCI having a BWP ID field with a maximum number of bits greater than two.
[0128] With respect to process 900, in some aspects, the BWP type includes an inter-beam BWP type, and process 900 includes resetting a default BWP associated with the UE to correspond to a default BWP associated with the target beam associated with the second BWP.
[0129] With respect to process 900, in some aspects, the BWP configuration is carried in a DCI that indicates a BWP type corresponding to one or more BWPs.
[0130] With respect to process 900, in some aspects, the DCI indicates a BWP ID corresponding to the second BWP, the BWP type corresponds to the second BWP, and process 900 further includes switching to the second BWP based at least in part on the BWP identifier and the BWP type.
[0131] With regard to process 900, in some aspects, the DCI indicates the BWP type using a BWP type field having at least one bit.
[0132] With regard to process 900, in some aspects the process includes directly decoding the PDCCH payload including the DCI to extract at least one bit.
[0133] With respect to process 900, in some aspects, the DCI indicates the BWP type using a first scrambling sequence applied to the rate matched channel encoder output, the first scrambling sequence indicating a first BWP type, or a second scrambling sequence applied to the rate matched channel encoder output, the second scrambling sequence indicating a second BWP type.
[0134] With regard to process 900, in some aspects the process includes blindly decoding a physical downlink control channel payload including downlink control information using the first scrambling sequence and the second scrambling sequence.
[0135] With respect to process 900, in some aspects, the downlink control information indicates the BWP type using a first RNTI subtype of the RNTI to indicate the first BWP type or a second RNTI subtype of the RNTI to indicate the second BWP type.
[0136] With regard to process 900, in some aspects, the RNTI includes a C-RNTI, a CS-RNTI, or an MCS-C-RNTI.
[0137] With regard to process 900, in some aspects the process includes blindly decoding a PDCCH payload including DCI using the first RNTI subtype and the second RNTI subtype.
[0138] With regard to process 900, in some aspects, the DCI indicates the BWP type using a first DMRS sequence indicating a first BWP type or a second DMRS sequence indicating a second BWP type.
[0139] With respect to process 900, in some aspects the process includes determining a BWP type by determining that a first DMRS sequence is associated with a correct CRC or that a second DMRS sequence is associated with a correct CRC.
[0140] With regard to process 900, in some aspects, the BWP configuration is carried in a DCI, and process 900 includes receiving a BWP type indicator, the BWP type indicator being carried in an encoded communication including the DCI.
[0141] With regard to process 900, in some aspects the process includes directly decoding the PDCCH payload including the coded communication to extract the BWP type indicator.
[0142] With respect to process 900, in some aspects, the BWP configuration configures the BWP ID field to include a tuple having a unique tuple ID indicating the BWP ID and the beam ID.
[0143] With respect to process 900, in some aspects the beam ID includes at least one of a cell ID, an SSB index, a dedicated beam ID, or a combination thereof.
[0144] With respect to process 900, in some aspects the beam ID indicates a target beam identified based at least in part on a determination that the UE is likely to intercept the target beam.
[0145] With respect to process 900, in some aspects the decision is made based at least in part on the mobility state of the beam.
[0146] With regard to process 900, in some aspects, the BWP configuration is carried in an RRC message, and process 900 includes receiving a DCI including a BWP ID field that includes a tuple.
[0147] With respect to process 900, in some aspects the BWP ID field comprises more than two bits.
[0148] With regard to process 900, in some aspects the process includes switching from a first BWP to a second BWP based at least in part on a tuple indicative of the second BWP.
[0149] With respect to process 900, in some aspects the process includes resetting a default BWP associated with the user equipment to correspond to a default BWP associated with the target beam associated with the second BWP.
[0150] With respect to process 900, in some aspects, the BWP configuration indicates one or more BWPs by indicating one or more corresponding BWP IDs, and the BWP configuration is conveyed in a DCI based at least in part on the one or more BWPs, including one or more intra-beam BWPs, or a MAC-CE based at least in part on the one or more BWPs, including one or more inter-beam BWPs.
[0151] With respect to process 900, in some aspects, the BWP configuration indicates one or more BWPs by indicating one or more corresponding BWP IDs, and the BWP configuration is conveyed in a DCI based at least in part on the one or more BWPs including one or more intra-beam BWPs, or an RRC message based at least in part on the one or more BWPs including one or more inter-beam BWPs.
[0152] With respect to process 900, in some aspects, the BWP configuration indicates one or more BWPs by indicating one or more corresponding BWP IDs, and the BWP configuration is carried in a DCI based at least in part on one or more BWPs including one or more inter-beam BWPs, in a MAC-CE based at least in part on one or more BWPs including one or more intra-beam BWPs, or in an RRC message based at least in part on one or more BWPs including one or more intra-beam BWPs.
[0153] With respect to process 900, in some aspects, the first BWP is associated with a first beam and the second BWP is associated with a second beam, and process 900 further includes receiving a DCI having a dedicated DCI format corresponding to inter-beam BWP switching.
[0154] With regard to process 900, in some aspects the process includes switching from a first BWP to a second BWP based at least in part on the DCI.
[0155] With respect to process 900, in some aspects, the dedicated DCI format includes a set of resource elements that indicate at least one of an inter-beam BWP ID, a wireless communication device ID, a beam ID, or a combination thereof.
[0156] With respect to process 900, in some aspects, the inter-beam BWP ID indicates at least one of an initial UL BWP, an initial DL BWP, a default UL BWP, a DL downlink BWP, or a combination thereof.
[0157] With respect to process 900, in some aspects the beam ID includes at least one of a cell ID, an SSB index, a dedicated beam ID, or a combination thereof.
[0158] With regard to process 900, in some aspects the process includes receiving an indication of a dedicated DCI format.
[0159] With respect to process 900, in some aspects, the instruction includes at least one of an RRC configuration search space, a format ID field in the C-RNTI and DCI used to address the UE, an inter-beam BWP switching RNTI used to address the UE, a designated scrambling sequence applied to the rate matched channel encoder output, a designated DMRS sequence, a dedicated DCI format ID to be encoded in the encoded message including the DCI, or a combination thereof.
[0160] With regard to process 900, in some aspects the process includes transmitting a feedback message acknowledging receipt of the DCI.
[0161] 9 shows example blocks of process 900, in some aspects process 900 may include additional blocks, fewer blocks, different blocks, or blocks ordered differently than those illustrated in FIGURE 9. Additionally or alternatively, two or more of the blocks of process 900 may be performed in parallel.
[0162] 10 illustrates an example process 1000 performed, for example, by a wireless communication device, in accordance with the present disclosure. The example process 1000 is an example of a wireless communication device (e.g., wireless communication device 505, wireless communication device 605, wireless communication device 705, wireless communication device 805, etc.) performing operations associated with a BWP switch.
[0163] 10, in some aspects, process 1000 may include transmitting a BWP configuration to a UE indicating one or more BWPs associated with at least one beam (block 1010). For example, as described above, a wireless communication device (e.g., using transmit processor 220, controller / processor 240, memory 242, etc.) may transmit a BWP configuration to a UE indicating one or more BWPs associated with at least one beam.
[0164] 10, in some aspects, the process 1000 may include switching from a first BWP of the one or more BWPs as the active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration (block 1020). For example, as described above, the wireless communication device (e.g., using the transmit processor 220, the receive processor 238, the controller / processor 240, the memory 242, etc.) may switch from a first BWP of the one or more BWPs as the active BWP to a second BWP of the one or more BWPs as the active BWP based at least in part on the BWP configuration.
[0165] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects, described below and / or in connection with one or more other processes described elsewhere herein.
[0166] With regard to process 1000, in some aspects, the BWP configuration is carried in at least one of an RRC message, a DCI, a MAC-CE, a SIB, or a combination thereof.
[0167] With regard to process 1000, in some aspects the wireless communication device includes a non-terrestrial wireless communication device.
[0168] With respect to process 1000, in some aspects the non-terrestrial wireless communications device is a non-terrestrial base station or a non-terrestrial relay station.
[0169] With respect to process 1000, in some aspects the process includes transmitting a broadcast message including an indication of one or more beam parameters associated with at least one beam, the one or more beam parameters indicating at least one of a Doppler frequency precompensation value associated with the at least one beam, a target position within a beam footprint associated with the at least one beam, a timing adjustment parameter associated with the at least one beam, or a combination thereof.
[0170] With respect to process 1000, in some embodiments, the target location comprises a central location of the beam footprint.
[0171] With respect to process 1000, in some aspects the timing adjustment parameter includes an offset parameter corresponding to a delay component between the wireless communication device and the UE within the beam footprint.
[0172] With respect to process 1000, in some aspects, the BWP configuration indicates a first initial UL BWP associated with a first beam, a first initial DL BWP associated with the first beam, a second initial UL BWP associated with a second beam, and a second initial DL BWP associated with the second beam.
[0173] With respect to process 1000, in some aspects, the BWP configuration indicates a first default UL BWP associated with a first beam, a first default DL BWP associated with the first beam, a second default UL BWP associated with a second beam, and a second default DL BWP associated with the second beam.
[0174] With respect to process 1000, in some aspects, the BWP configuration does not include a configuration of at least one default BWP associated with the at least one beam, and the at least one configured initial BWP associated with the at least one beam includes at least one default BWP.
[0175] With respect to process 1000, in some aspects the process includes transmitting a beam switching time configuration indicating a beam switching time associated with a UE switching from a first beam to a second beam as an active beam.
[0176] With respect to process 1000, in some aspects the process includes receiving an indication of a maximum beam switching time associated with the UE and determining a beam switching time based at least in part on the maximum beam switching time.
[0177] With regard to process 1000, in some aspects the process includes receiving an indication of an antenna type associated with the UE and determining a beam switching time based at least in part on the antenna type.
[0178] With respect to process 1000, in some aspects the antenna type includes at least one of a motor-steered antenna type, an active electronically scanned array type, or a combination thereof.
[0179] With respect to process 1000, in some aspects, the process includes transmitting a precompensation switching time configuration indicating a precompensation switching time associated with a switch by the UE from a first frequency precompensation to a second frequency precompensation as active precompensation.
[0180] With respect to process 1000, in some aspects, the process includes switching from a first BWP to a second BWP by performing a BWP switching procedure, including an inter-beam BWP switching procedure in which a first BWP is associated with a first beam of at least one beam and a second BWP is associated with a second beam of at least one beam, or an intra-beam BWP switching procedure in which a first BWP is associated with a first beam of at least one beam and a second BWP is associated with a first beam of at least one beam.
[0181] With respect to process 1000, in some aspects, the BWP configuration indicates an inter-beam BWP switching procedure, a first BWP, an association between the first BWP and a first beam, a second BWP, an association between the second BWP and a second beam, or a combination thereof.
[0182] With respect to process 1000, in some aspects, the inter-beam BWP switching procedure is configured using at least one of an RRC message, an SIB, or a combination thereof.
[0183] With respect to process 1000, in some aspects, the BWP configuration indicates an intra-beam BWP switching procedure, a first BWP, an association between the first BWP and the first beam, a second BWP, an association between the second BWP and the first beam, or a combination thereof.
[0184] With respect to process 1000, in some aspects, the intra-beam BWP switching procedure is configured using RRC messages.
[0185] With respect to process 1000, in some aspects, the BWP configuration indicates a maximum number of BWPs.
[0186] With respect to process 1000, in some embodiments, the maximum number of BWPs is greater than four.
[0187] With respect to process 1000, in some embodiments, the maximum number of BWPs includes a maximum number of intra-beam BWPs, a maximum number of inter-beam BWPs, or a combination thereof.
[0188] With respect to process 1000, in some aspects, one BWP of the one or more BWPs is associated with a beam of a wireless communication device that is a serving wireless communication device or a beam of an additional wireless communication device.
[0189] With regard to process 1000, in some aspects, the BWP configuration is carried in an RRC message indicating the second BWP as a target BWP for switching.
[0190] With respect to process 1000, in some aspects the second BWP comprises an active UL BWP or an active DL BWP.
[0191] With regard to process 1000, in some aspects the RRC message includes a setup message or a reconfiguration message.
[0192] With respect to process 1000, in some aspects, the BWP configuration is conveyed in a DCI including a first set of indices associated with intra-beam BWPs and a second set of indices associated with inter-beam BWPs.
[0193] With respect to process 1000, in some aspects, the BWP configuration is carried in a DCI that includes a BWP ID field with a maximum number of bits greater than two.
[0194] With respect to process 1000, in some aspects, the BWP configuration is carried in a DCI that indicates a BWP type corresponding to one or more BWPs.
[0195] With respect to process 1000, in some aspects, the DCI indicates a BWP ID corresponding to the second BWP, the BWP type corresponds to the second BWP, and process 1000 includes switching to the second BWP based at least in part on the BWP ID and the BWP type.
[0196] With regard to process 1000, in some aspects, the DCI indicates the BWP type using a BWP type field having at least one bit.
[0197] With respect to process 1000, in some aspects the process includes applying a first scrambling sequence to the rate matched channel encoder output, where the first scrambling sequence indicates a first BWP type, or applying a second scrambling sequence to the rate matched channel encoder output, where the second scrambling sequence indicates a second BWP type.
[0198] With respect to process 1000, in some aspects the process includes scrambling the set of CRC bits using a first RNTI having a first RNTI subtype to indicate a first BWP type or scrambling the set of CRC bits using a second RNTI having a second RNTI subtype to indicate a second BWP type.
[0199] With regard to process 1000, in some aspects the first RNTI or the second RNTI includes a C-RNTI, a CS-RNTI, or an MCS-C-RNTI.
[0200] With regard to process 1000, in some aspects the process includes transmitting a first DMRS sequence indicating a first BWP type or transmitting a second DMRS sequence indicating a second BWP type.
[0201] With respect to process 1000, in some aspects, the BWP configuration is carried within a DCI, and process 1000 includes generating an encoded communication including the DCI and a BWP type indicator, and transmitting the encoded communication.
[0202] With respect to process 1000, in some aspects, the BWP configuration configures the BWP ID field to include a tuple having a unique tuple ID indicating a BWP ID corresponding to the second BWP and a beam ID corresponding to the target beam.
[0203] With respect to process 1000, in some aspects the beam ID includes at least one of a cell ID, an SSB index, a dedicated beam ID, or a combination thereof.
[0204] With respect to process 1000, in some aspects, the process includes determining that the UE is likely to intercept the target beam, and the beam ID indicates the beam based at least in part on the determination that the UE is likely to intercept the target beam.
[0205] With respect to process 1000, in some aspects the process includes determining, based at least in part on the mobility state of the target beam, that the UE is likely to intercept the beam.
[0206] With respect to process 1000, in some aspects, the BWP configuration is carried in an RRC message, and process 1000 further includes transmitting a DCI including a BWP ID field containing the tuple.
[0207] With respect to process 1000, in some aspects the BWP ID field comprises three or more bits.
[0208] With respect to process 1000, in some aspects, the BWP configuration indicates one or more BWPs by indicating one or more corresponding BWP IDs, and the BWP configuration is conveyed in a DCI based at least in part on the one or more BWPs including one or more intra-beam BWPs, or a MAC-CE based at least in part on the one or more BWPs including one or more inter-beam BWPs.
[0209] With respect to process 1000, in some aspects, the BWP configuration indicates one or more BWPs by indicating one or more corresponding BWP IDs, and the BWP configuration is conveyed in a DCI based at least in part on one or more BWPs including one or more intra-beam BWPs, or an RRC message based at least in part on one or more BWPs including one or more inter-beam BWPs.
[0210] With respect to process 1000, in some aspects, the BWP configuration indicates one or more BWPs by indicating one or more corresponding BWP IDs, and the BWP configuration is carried in a DCI based at least in part on one or more BWPs including one or more inter-beam BWPs, a MAC-CE based at least in part on one or more BWPs including one or more intra-beam BWPs, or an RRC message based at least in part on one or more BWPs including one or more intra-beam BWPs.
[0211] With respect to process 1000, in some aspects, a first BWP is associated with a first beam and a second BWP is associated with a second beam, and process 1000 includes transmitting a DCI having a dedicated DCI format corresponding to inter-beam BWP switching.
[0212] With respect to process 1000, in some aspects, the dedicated DCI format includes a set of resource elements that indicate at least one of an inter-beam BWP ID, a wireless communication device ID, a beam ID, or a combination thereof.
[0213] With respect to process 1000, in some aspects, the inter-beam BWP ID indicates at least one of an initial UL BWP, an initial DL BWP, a default UL BWP, a default DL BWP, or a combination thereof.
[0214] With respect to process 1000, in some aspects the beam ID includes at least one of a cell ID, an SSB index, a dedicated beam ID, or a combination thereof.
[0215] With regard to process 1000, in some aspects the process includes transmitting an indication of a dedicated DCI format.
[0216] With respect to process 1000, in some aspects, the instruction includes at least one of an RRC configuration search space, a format ID field in the C-RNTI and DCI used to address the UE, an inter-beam BWP switching RNTI used to address the UE, a designated scrambling sequence applied to the rate matched channel encoder output, a designated DMRS sequence, a dedicated DCI format ID to be encoded in the encoded message including the DCI, or a combination thereof.
[0217] With regard to process 1000, in some aspects the process includes receiving a feedback message acknowledging receipt of the DCI.
[0218] With regard to process 1000, in some aspects the process includes transmitting a resource allocation including UL resources and receiving a scheduling request based at least in part on the UL resources and the second BWP.
[0219] 10 illustrates example blocks of process 1000, in some aspects process 1000 may include additional, fewer, different, or differently arranged blocks than those illustrated in FIG 10. Additionally or alternatively, two or more of the blocks of process 1000 may be performed in parallel.
[0220] The following provides a summary of some aspects of the disclosure.
[0221] Aspect 1: A method of wireless communication performed by a user equipment, the method including: receiving a bandwidth portion configuration indicating one or more bandwidth portions associated with at least one beam; and switching from a first bandwidth portion of the one or more bandwidth portions as an active bandwidth portion to a second bandwidth portion of the one or more bandwidth portions as an active bandwidth portion based at least in part on the bandwidth portion configuration.
[0222] Aspect 2: The method of aspect 1, wherein the bandwidth portion configuration is carried in at least one of a radio resource control message, a downlink control information, a medium access control control element, a system information block, or a combination thereof.
[0223] Aspect 3: The method of any of aspects 1 or 2, wherein at least one beam is associated with a non-terrestrial wireless communication device.
[0224] Aspect 4: The method of aspect 3, wherein the non-terrestrial wireless communication device is a non-terrestrial base station or a non-terrestrial relay station.
[0225] Aspect 5: The method of any one of aspects 1 to 4, further comprising receiving a broadcast message from a wireless communication device associated with the at least one beam, the broadcast message including an indication of one or more beam parameters associated with the at least one beam, wherein the one or more beam parameters indicate at least one of a Doppler frequency precompensation value associated with the at least one beam, a target position within a beam footprint associated with the at least one beam, a timing adjustment parameter associated with the at least one beam, or a combination thereof.
[0226] Aspect 6: The method of aspect 5, wherein the target position comprises a center position of the beam footprint.
[0227] Aspect 7: The method of any of aspects 5 or 6, wherein the timing adjustment parameter includes an offset parameter corresponding to a delay component between the wireless communication device and the user equipment within the beam footprint.
[0228] Aspect 8: The method of any one of aspects 1 to 7, wherein the bandwidth portion configuration indicates a first initial uplink bandwidth portion associated with the first beam, a first initial downlink bandwidth portion associated with the first beam, a second initial uplink bandwidth portion associated with the second beam, and a second initial downlink bandwidth portion associated with the second beam.
[0229] Aspect 9: The method of any one of aspects 1 to 8, wherein the bandwidth portion configuration indicates a first default uplink bandwidth portion associated with the first beam, a first default downlink bandwidth portion associated with the first beam, a second default uplink bandwidth portion associated with the second beam, and a second default downlink bandwidth portion associated with the second beam.
[0230] Aspect 10: The method of any one of aspects 1 to 9, wherein the bandwidth portion configuration does not include a configuration of at least one default bandwidth portion associated with at least one beam, and at least one configured initial bandwidth portion associated with at least one beam includes at least one default bandwidth portion.
[0231] Aspect 11: The method of any one of aspects 1 to 10, further comprising receiving a beam switching time configuration indicating a beam switching time associated with switching by a user equipment from a first beam to a second beam as an active beam.
[0232] Aspect 12: The method of aspect 11, further comprising transmitting an indication of a maximum beam switching time associated with the user equipment, the beam switching time being based at least in part on the maximum beam switching time.
[0233] Aspect 13: The method of any of aspects 11 or 12, further comprising transmitting an indication of an antenna type associated with the user equipment, wherein the beam switching time is based at least in part on the antenna type.
[0234] Aspect 14: The method of aspect 13, wherein the antenna type includes at least one of a motor-steered antenna type, an active electronically scanned array type, or a combination thereof.
[0235] Aspect 15: The method of any one of aspects 1 to 14, further comprising receiving a precompensation switching time configuration indicating a precompensation switching time associated with switching by the user equipment from the first frequency precompensation to the second frequency precompensation as active precompensation.
[0236] Aspect 16: The method of any one of aspects 1 to 15, comprising: switching from the first bandwidth portion to the second bandwidth portion by performing a bandwidth portion switching procedure comprising an inter-beam bandwidth portion switching procedure, in which the first bandwidth portion is associated with a first beam of at least one beam and the second bandwidth portion is associated with a second beam of at least one beam, or an intra-beam bandwidth portion switching procedure, in which the first bandwidth portion is associated with at least one first beam and the second bandwidth portion is associated with the first beam of at least one beam.
[0237] Aspect 17: The method of aspect 16, wherein the bandwidth portion configuration indicates an inter-beam bandwidth portion switching procedure, a first bandwidth portion, an association between the first bandwidth portion and the first beam, a second bandwidth portion, an association between the second bandwidth portion and the second beam, or a combination thereof.
[0238] Aspect 18: The method of aspect 17, wherein the inter-beam bandwidth partial switching procedure is configured using at least one of a radio resource control message, a system information block, or a combination thereof.
[0239] Aspect 19: The method of any one of aspects 16 to 18, wherein the bandwidth portion configuration indicates an intra-beam bandwidth portion switching procedure, a first bandwidth portion, an association between the first bandwidth portion and the first beam, a second bandwidth portion, an association between the second bandwidth portion and the first beam, or a combination thereof.
[0240] Aspect 20: The method of aspect 19, wherein the intra-beam bandwidth portion switching procedure is configured using a radio resource control message.
[0241] Aspect 21: The method of any one of aspects 1 to 20, wherein the bandwidth portion configuration indicates a maximum number of bandwidth portions.
[0242] Aspect 22: The method of aspect 21, wherein the maximum number of bandwidth fractions is greater than four.
[0243] Aspect 23: The method of any of aspects 21 or 22, wherein the maximum number of bandwidth fractions comprises a maximum number of intra-beam bandwidth fractions, a maximum number of inter-beam bandwidth fractions, or a combination thereof.
[0244] Aspect 24: The method of any one of aspects 1 to 23, wherein one bandwidth portion of the one or more bandwidth portions is associated with a beam of a serving wireless communication device or a beam of an additional wireless communication device.
[0245] Aspect 25: The method of any one of aspects 1 to 24, wherein the bandwidth portion configuration is carried in a radio resource control message indicating the second bandwidth portion as a target bandwidth portion for switching.
[0246] Aspect 26: The method of aspect 25, wherein the second bandwidth portion includes an active uplink bandwidth portion or an active downlink bandwidth portion.
[0247] Aspect 27: The method of any one of aspects 25 or 26, wherein the radio resource control message includes a setup message or a reconfiguration message.
[0248] Aspect 28: A method according to any one of aspects 1 to 27, further comprising switching from a first bandwidth portion as an active bandwidth portion to a second bandwidth portion as an active bandwidth portion, and from the serving beam to a target beam associated with the second bandwidth portion, within a configured switching time delay based at least in part on the target beam being different from the serving beam.
[0249] Aspect 29: The method of any one of aspects 1 to 28, wherein the bandwidth portion configuration is conveyed within downlink control information including a first set of indices associated with intra-beam bandwidth portions and a second set of indices associated with inter-beam bandwidth portions.
[0250] Aspect 30: The method of any one of aspects 1 to 29, wherein the bandwidth portion configuration is conveyed in downlink control information including a bandwidth portion identification field having a maximum number of bits greater than two.
[0251] Aspect 31: The method of any one of aspects 1 to 30, wherein the bandwidth portion type includes an inter-beam bandwidth portion type, and the method further includes resetting a default bandwidth portion associated with the user equipment to correspond to a default bandwidth portion associated with the target beam associated with the second bandwidth portion.
[0252] Aspect 32: The method of any one of aspects 1 to 31, wherein the bandwidth portion configuration is conveyed within downlink control information indicating a bandwidth portion type corresponding to one or more bandwidth portions.
[0253] Aspect 33: The method of aspect 32, wherein the downlink control information indicates a bandwidth portion identifier corresponding to the second bandwidth portion, and the bandwidth portion type corresponds to the second bandwidth portion, and the method further includes switching to the second bandwidth portion based at least in part on the bandwidth portion identifier and the bandwidth portion type.
[0254] Aspect 34: The method of any one of aspects 32 or 33, wherein the downlink control information indicates a bandwidth portion type using a bandwidth portion type field having at least one bit.
[0255] Aspect 35: The method of aspect 34, further comprising directly decoding a physical downlink control channel payload containing downlink control information to extract at least one bit.
[0256] Aspect 36: The method of any one of aspects 32 to 35, wherein the downlink control information indicates the bandwidth portion type using a first scrambling sequence applied to a rate matched channel encoder output, the first scrambling sequence indicating a first bandwidth portion type, or a second scrambling sequence applied to the rate matched channel encoder output, the second scrambling sequence indicating a second bandwidth portion type.
[0257] Aspect 37: The method of aspect 36, further comprising blindly decoding a physical downlink control channel payload including downlink control information using the first scrambling sequence and the second scrambling sequence.
[0258] Aspect 38: The method of any one of aspects 32 to 37, wherein the downlink control information indicates the bandwidth portion type using a first radio network temporary identifier subtype of the radio network temporary identifier to indicate the first bandwidth portion type, or a second radio network temporary identifier subtype of the radio network temporary identifier to indicate the second bandwidth portion type.
[0259] Aspect 39: The method of aspect 38, wherein the radio network temporary identifier comprises a cell radio network temporary identifier, a configured scheduling radio network temporary identifier, or a modulation and coding scheme cell radio network temporary identifier.
[0260] Aspect 40: The method of any of aspects 38 or 39, further comprising: blind decoding a physical downlink control channel payload including downlink control information using the first radio network temporary identifier subtype and the second radio network temporary identifier subtype.
[0261] Aspect 41: The method of any one of aspects 32 to 40, wherein the downlink control information indicates the bandwidth portion type using a first demodulation reference signal sequence indicating the first bandwidth portion type or a second demodulation reference signal sequence indicating the second bandwidth portion type.
[0262] Aspect 42: The method of aspect 41, further comprising determining a bandwidth portion type by determining that the first demodulation reference signal sequence is associated with a precise cyclic redundancy check or that the second demodulation reference signal sequence is associated with a precise cyclic redundancy check.
[0263] Aspect 43: The method of any one of aspects 1 to 42, wherein the bandwidth portion configuration is conveyed within downlink control information, and the method further includes receiving a bandwidth portion type indicator, wherein the bandwidth portion type indicator is conveyed within an encoded communication including the downlink control information.
[0264] Aspect 44: The method of aspect 43, further comprising directly decoding the physical downlink control channel payload including the encoded communication to extract the bandwidth portion type indicator.
[0265] Aspect 45: The method of any one of aspects 1 to 44, wherein the bandwidth portion configuration configures the bandwidth portion identifier field to include a tuple having a unique tuple identifier indicating a bandwidth portion identifier and a beam identifier.
[0266] Aspect 46: The method of aspect 45, wherein the beam identifier includes at least one of a cell identifier, a synchronization signal block index, a dedicated beam identifier, or a combination thereof.
[0267] Aspect 47: The method of any of aspects 45 or 46, wherein the beam identifier indicates a target beam identified based at least in part on a determination that the user equipment is likely to intercept the target beam.
[0268] Aspect 48: The method of aspect 47, wherein the decision is made based at least in part on the mobility state of the beam.
[0269] Aspect 49: The method of any one of aspects 45 to 48, wherein the bandwidth portion configuration is carried in a radio resource control message, and the method further comprises receiving downlink control information including a bandwidth portion identifier field that includes the tuple.
[0270] Aspect 50: The method of any one of aspects 45 to 49, wherein the bandwidth portion identifier field comprises three or more bits.
[0271] Aspect 51: The method of any one of aspects 45 to 50, further comprising switching from the first bandwidth portion to the second bandwidth portion based at least in part on a tuple indicating the second bandwidth portion.
[0272] Aspect 52: The method of any one of aspects 45 to 51, further comprising resetting a default bandwidth portion associated with the user equipment to correspond to a default bandwidth portion associated with the target beam associated with the second bandwidth portion.
[0273] Aspect 53: A method according to any one of aspects 1 to 52, wherein the bandwidth portion configuration indicates one or more bandwidth portions by indicating one or more corresponding bandwidth portion identifiers, and the bandwidth portion configuration is conveyed in downlink control information based at least in part on one or more bandwidth portions including one or more intra-beam bandwidth portions, or in a medium access control control element based at least in part on one or more bandwidth portions including one or more inter-beam bandwidth portions.
[0274] Aspect 54: A method according to any one of aspects 1 to 53, wherein the bandwidth portion configuration indicates one or more bandwidth portions by indicating one or more corresponding bandwidth portion identifiers, and the bandwidth portion configuration is conveyed in downlink control information based at least in part on one or more bandwidth portions including one or more intra-beam bandwidth portions, or in a radio resource control message based at least in part on one or more bandwidth portions including one or more inter-beam bandwidth portions.
[0275] Aspect 55: A method according to any one of aspects 1 to 54, wherein the bandwidth portion configuration indicates one or more bandwidth portions by indicating one or more corresponding bandwidth portion identifiers, and the bandwidth portion configuration is conveyed in downlink control information based at least in part on one or more bandwidth portions including one or more inter-beam bandwidth portions, a medium access control control element based at least in part on one or more bandwidth portions including one or more intra-beam bandwidth portions, or a radio resource control message based at least in part on one or more bandwidth portions including one or more intra-beam bandwidth portions.
[0276] Aspect 56: The method of any one of aspects 1 to 55, wherein the first bandwidth portion is associated with a first beam and the second bandwidth portion is associated with a second beam, and the method further includes receiving downlink control information having a dedicated downlink control information format corresponding to inter-beam bandwidth portion switching.
[0277] Aspect 57: The method of aspect 56, further comprising switching from the first bandwidth portion to the second bandwidth portion based at least in part on the downlink control information.
[0278] Aspect 58: The method of any of aspects 56 or 57, wherein the dedicated downlink control format includes a set of resource elements indicating at least one of an inter-beam bandwidth portion identifier, a wireless communication device identifier, a beam identifier, or a combination thereof.
[0279] Aspect 59: The method described in aspect 58, wherein the inter-beam bandwidth portion identifier indicates at least one of an initial uplink bandwidth portion, an initial downlink bandwidth portion, a default uplink bandwidth portion, a default downlink bandwidth portion, or a combination thereof.
[0280] Aspect 60: The method of any of aspects 58 or 59, wherein the beam identifier includes at least one of a cell identifier, a synchronization signal block index, a dedicated beam identifier, or a combination thereof.
[0281] Aspect 61: The method of any one of aspects 56 to 60, further comprising receiving an indication of a dedicated downlink control information format.
[0282] Aspect 62: The method of aspect 61, wherein the instructions include at least one of a radio resource control configuration search space, a cell radio network temporary identifier used to address the user equipment and a format identifier field in the downlink control information, an inter-beam bandwidth partial switching radio network temporary identifier used to address the user equipment, a specified scrambling sequence applied to the rate matched channel encoder output, a specified demodulation reference signal sequence, a dedicated downlink control information format identifier encoded in the encoded message including the downlink control information, or a combination thereof.
[0283] Aspect 63: The method of any one of aspects 56 to 62, further comprising transmitting a feedback message acknowledging receipt of the downlink control information.
[0284] Aspect 64: The method of aspect 63, further comprising: receiving a resource allocation including uplink resources; and transmitting a scheduling request using the uplink resources and the second bandwidth portion.
[0285] Aspect 65: A method of wireless communication performed by a wireless communication device, the method including: transmitting a bandwidth portion configuration to a user equipment indicating one or more bandwidth portions associated with at least one beam; and switching from a first bandwidth portion of the one or more bandwidth portions as an active bandwidth portion to a second bandwidth portion of the one or more bandwidth portions as an active bandwidth portion based at least in part on the bandwidth portion configuration.
[0286] Aspect 66: The method of aspect 65, wherein the bandwidth portion configuration is conveyed in at least one of a radio resource control message, a downlink control information, a medium access control control element, a system information block, or a combination thereof.
[0287] Aspect 67: The method of any of aspects 65 or 66, wherein the wireless communication device includes a non-terrestrial wireless communication device.
[0288] Aspect 68: The method of aspect 67, wherein the non-terrestrial wireless communication device is a non-terrestrial base station or a non-terrestrial relay station.
[0289] Aspect 69: The method of any one of aspects 65 to 68, further comprising transmitting a broadcast message including an indication of one or more beam parameters associated with at least one beam, wherein the one or more beam parameters indicate at least one of a Doppler frequency pre-compensation value associated with the at least one beam, a target position within a beam footprint associated with the at least one beam, a timing adjustment parameter associated with the at least one beam, or a combination thereof.
[0290] Aspect 70: The method described in aspect 69, wherein the target position comprises a central position of the beam footprint.
[0291] Aspect 71: The method of any of aspects 69 or 70, wherein the timing adjustment parameter includes an offset parameter corresponding to a delay component between the wireless communication device and the user equipment within the beam footprint.
[0292] Aspect 72: The method of any one of aspects 65 to 71, wherein the bandwidth portion configuration indicates a first initial uplink bandwidth portion associated with the first beam, a first initial downlink bandwidth portion associated with the first beam, a second initial uplink bandwidth portion associated with the second beam, and a second initial downlink bandwidth portion associated with the second beam.
[0293] Aspect 73: The method of any one of aspects 65 to 72, wherein the bandwidth portion configuration indicates a first default uplink bandwidth portion associated with the first beam, a first default downlink bandwidth portion associated with the first beam, a second default uplink bandwidth portion associated with the second beam, and a second default downlink bandwidth portion associated with the second beam.
[0294] Aspect 74: The method of any one of aspects 65 to 73, wherein the bandwidth portion configuration does not include a configuration of at least one default bandwidth portion associated with at least one beam, and at least one configured initial bandwidth portion associated with at least one beam includes at least one default bandwidth portion.
[0295] Aspect 75: The method of any one of aspects 65 to 74, further comprising transmitting a beam switching time configuration indicating a beam switching time associated with switching by a user equipment from a first beam to a second beam as an active beam.
[0296] Aspect 76: The method of aspect 75, further comprising: receiving an indication of a maximum beam switching time associated with the user equipment; and determining the beam switching time based at least in part on the maximum beam switching time.
[0297] Aspect 77: The method of any of aspects 75 or 76, further comprising receiving an indication of an antenna type associated with the user equipment and determining a beam switching time based at least in part on the antenna type.
[0298] Aspect 78: The method of aspect 77, wherein the antenna type includes at least one of a motor-steered antenna type, an active electronically scanned array type, or a combination thereof.
[0299] Aspect 79: The method of any one of aspects 65 to 78, further comprising transmitting a precompensation switching time configuration indicating a precompensation switching time associated with switching by the user equipment from the first frequency precompensation to the second frequency precompensation as active precompensation.
[0300] Aspect 80: The method of any one of aspects 65 to 79, further comprising: switching from the first bandwidth portion to the second bandwidth portion by performing a bandwidth portion switching procedure, including an inter-beam bandwidth portion switching procedure in which the first bandwidth portion is associated with a first beam of at least one beam and the second bandwidth portion is associated with a second beam of at least one beam, or an intra-beam bandwidth portion switching procedure in which the first bandwidth portion is associated with a first beam of at least one beam and the second bandwidth portion is associated with the first beam of at least one beam.
[0301] Aspect 81: The method of aspect 80, wherein the bandwidth portion configuration indicates an inter-beam bandwidth portion switching procedure, a first bandwidth portion, an association between the first bandwidth portion and the first beam, a second bandwidth portion, an association between the second bandwidth portion and the second beam, or a combination thereof.
[0302] Aspect 82: The method described in aspect 81, wherein the intra-beam bandwidth portion switching procedure is configured using at least one of a radio resource control message, a system information block, or a combination thereof.
[0303] Aspect 83: A method according to any of aspects 81 or 82, wherein the bandwidth portion configuration indicates an intra-beam bandwidth portion switching procedure, a first bandwidth portion, an association between the first bandwidth portion and the first beam, a second bandwidth portion, an association between the second bandwidth portion and the first beam, or a combination thereof.
[0304] Aspect 84: The method of any one of aspects 80 to 83, wherein the intra-beam bandwidth portion switching procedure is configured using a radio resource control message.
[0305] Aspect 85: The method of any one of aspects 65 to 84, wherein the bandwidth portion configuration indicates a maximum number of bandwidth portions.
[0306] Aspect 86: The method described in aspect 85, wherein the maximum bandwidth fraction number is greater than four.
[0307] Aspect 87: The method of aspect 86, wherein the maximum number of bandwidth fractions includes a maximum number of intra-beam bandwidth fractions, a maximum number of inter-beam bandwidth fractions, or a combination thereof.
[0308] Aspect 88: The method of any one of aspects 65 to 87, wherein one bandwidth portion of the one or more bandwidth portions is associated with a beam of a wireless communication device that is the serving wireless communication device or a beam of an additional wireless communication device.
[0309] Aspect 89: The method of any one of aspects 65 to 88, wherein the bandwidth portion configuration is carried in a radio resource control message indicating the second bandwidth portion as a target bandwidth portion for switching.
[0310] Aspect 90: The method of aspect 89, wherein the second bandwidth portion includes an active uplink bandwidth portion or an active downlink bandwidth portion.
[0311] Aspect 91: The method described in aspect 90, wherein the radio resource control message includes a setup message or a reconfiguration message.
[0312] Aspect 92: A method described in any one of aspects 65 to 91, wherein the bandwidth portion configuration is conveyed within downlink control information including a first set of indices associated with intra-beam bandwidth portions and a second set of indices associated with inter-beam bandwidth portions.
[0313] Aspect 93: The method of any one of aspects 65 to 92, wherein the bandwidth portion configuration is conveyed within downlink control information including a bandwidth portion identification field having a maximum number of bits greater than two.
[0314] Aspect 94: The method of any one of aspects 65 to 93, wherein the bandwidth portion configuration is conveyed within downlink control information indicating a bandwidth portion type corresponding to one or more bandwidth portions.
[0315] Aspect 95: The method of aspect 94, wherein the downlink control information indicates a bandwidth portion identifier corresponding to the second bandwidth portion, the bandwidth portion type corresponds to the second bandwidth portion, and the method further includes switching to the second bandwidth portion based at least in part on the bandwidth portion identifier and the bandwidth portion type.
[0316] Aspect 96: The method of aspect 95, wherein the downlink control information indicates a bandwidth portion type using a bandwidth portion type field having at least one bit.
[0317] Aspect 97: The method of any one of aspects 94 to 96, further comprising: applying a first scrambling sequence to the rate matched channel encoder output, wherein the first scrambling sequence indicates a first bandwidth portion type; or applying a second scrambling sequence to the rate matched channel encoder output, wherein the second scrambling sequence indicates a second bandwidth portion type.
[0318] Aspect 98: The method of aspect 97, further comprising: scrambling the set of cyclic redundancy checks using a first wireless network temporary identifier having a first wireless network temporary identifier subtype to indicate a first bandwidth portion type; or scrambling the set of cyclic redundancy checks using a second wireless network temporary identifier having a second wireless network temporary identifier subtype to indicate a second bandwidth portion type.
[0319] Aspect 99: The method of aspect 98, wherein the first radio network temporary identifier or the second radio network temporary identifier includes a cell radio network temporary identifier, a configured scheduling radio network temporary identifier, or a modulation and coding scheme cell radio network temporary identifier.
[0320] Aspect 100: The method of any one of aspects 94 to 99, further comprising transmitting a first demodulation reference signal sequence indicating a first bandwidth portion type or transmitting a second demodulation reference signal sequence indicating a second bandwidth portion type.
[0321] Aspect 101: The method of any one of aspects 65 to 100, wherein the bandwidth portion configuration is conveyed within downlink control information, and the method further includes the steps of generating an encoded communication including the downlink control information and the bandwidth portion type indicator, and transmitting the encoded communication.
[0322] Aspect 102: A method described in any one of aspects 65 to 101, wherein the bandwidth portion configuration configures a bandwidth portion identifier field to include a tuple having a unique tuple identifier indicating a bandwidth portion identifier corresponding to the second bandwidth portion and a beam identifier corresponding to the target beam.
[0323] Aspect 103: The method of aspect 102, wherein the beam identifier includes at least one of a cell identifier, a synchronization signal block index, a dedicated beam identifier, or a combination thereof.
[0324] Aspect 104: A method as described in any of aspects 102 or 103, further comprising determining that the user equipment is likely to intercept the target beam, and wherein the beam identifier indicates the beam based at least in part on the determination that the user equipment is likely to intercept the target beam.
[0325] Aspect 105: The method of aspect 104, further comprising determining, based at least in part on the mobility state of the target beam, that the user equipment is likely to intercept the beam.
[0326] Aspect 106: The method of any one of aspects 102 to 105, wherein the bandwidth portion configuration is carried in a radio resource control message, and the method further comprises transmitting downlink control information including a bandwidth portion identifier field that includes the tuple.
[0327] Aspect 107: The method of aspect 106, wherein the bandwidth portion identifier field includes three or more bits.
[0328] Aspect 108: The method of any one of aspects 65 to 107, wherein the bandwidth portion configuration indicates one or more bandwidth portions by indicating one or more corresponding bandwidth portion identifiers, and the bandwidth portion configuration is conveyed in downlink control information based at least in part on one or more bandwidth portions including one or more intra-beam bandwidth portions, or in a medium access control control element based at least in part on one or more bandwidth portions including one or more inter-beam bandwidth portions.
[0329] Aspect 109: The method of any one of aspects 65 to 108, wherein the bandwidth portion configuration indicates one or more bandwidth portions by indicating one or more corresponding bandwidth portion identifiers, and the bandwidth portion configuration is conveyed in downlink control information based at least in part on one or more bandwidth portions including one or more intra-beam bandwidth portions, or in a radio resource control message based at least in part on one or more bandwidth portions including one or more inter-beam bandwidth portions.
[0330] Aspect 110: The method of any one of aspects 65 to 109, wherein the bandwidth portion configuration indicates one or more bandwidth portions by indicating one or more corresponding bandwidth portion identifiers, and the bandwidth portion configuration is conveyed in downlink control information based at least in part on one or more bandwidth portions including one or more inter-beam bandwidth portions, a medium access control control element based at least in part on one or more bandwidth portions including one or more intra-beam bandwidth portions, or a radio resource control message based at least in part on one or more bandwidth portions including one or more intra-beam bandwidth portions.
[0331] Aspect 111: The method of any one of aspects 65 to 110, wherein the first bandwidth portion is associated with a first beam and the second bandwidth portion is associated with a second beam, and the method further includes transmitting downlink control information having a dedicated downlink control information format corresponding to inter-beam bandwidth portion switching.
[0332] Aspect 112: The method of aspect 111, wherein the dedicated downlink control information format includes a set of resource elements indicating at least one of an inter-beam bandwidth portion identifier, a wireless communication device identifier, a beam identifier, or a combination thereof.
[0333] Aspect 113: The method described in aspect 112, wherein the inter-beam bandwidth portion identifier indicates at least one of an initial uplink bandwidth portion, an initial downlink bandwidth portion, a default uplink bandwidth portion, a default downlink bandwidth portion, or a combination thereof.
[0334] Aspect 114: The method described in any of aspects 112 or 113, wherein the beam identifier includes at least one of a cell identifier, a synchronization signal block index, a dedicated beam identifier, or a combination thereof.
[0335] Aspect 115: The method of any one of aspects 112 to 114, further comprising the step of transmitting an indication of a dedicated downlink control information format.
[0336] Aspect 116: The method of aspect 115, wherein the instructions include at least one of a radio resource control configuration search space, a cell radio network temporary identifier used to address the user equipment and a format identifier in the downlink control information, an inter-beam bandwidth partial switching radio network temporary identifier used to address the user equipment, a designated scrambling sequence applied to the rate matched channel encoder output, a designated demodulation reference signal sequence, a dedicated downlink control information format identifier encoded in the encoded message including the downlink control information, or a combination thereof.
[0337] Aspect 117: The method of any one of aspects 114 to 116, further comprising receiving a feedback message acknowledging receipt of the downlink control information.
[0338] Aspect 118: The method of any one of aspects 114 to 117, further comprising: transmitting a resource allocation including uplink resources; and receiving a scheduling request based at least in part on the uplink resources and the second bandwidth portion.
[0339] Aspect 119: A method of wireless communication performed by user equipment, the method including: receiving a broadcast message from a wireless communication device including an indication of a Doppler frequency precompensation value associated with at least one beam; and communicating with the wireless communication device based at least in part on the Doppler frequency precompensation value.
[0340] Aspect 120: The method described in aspect 119, wherein the one or more beam parameters indicate a target position within a beam footprint associated with at least one beam, and the target position includes a center position of the beam footprint.
[0341] Aspect 121: A method of wireless communication performed by a wireless communication device, the method including: transmitting a broadcast message to a user equipment (UE) including an indication of a Doppler frequency precompensation value associated with at least one beam; and communicating with the UE based at least in part on the Doppler frequency precompensation value.
[0342] Aspect 122: The method described in aspect 121, wherein the one or more beam parameters indicate a target position within a beam footprint associated with at least one beam, and the target position includes a center position of the beam footprint.
[0343] Aspect 123: An apparatus for wireless communication in 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 described in one or more aspects of aspects 1 to 64.
[0344] Aspect 124: A device for wireless communication comprising a memory and one or more processors coupled to the memory, wherein the one or more processors are configured to perform a method described in one or more aspects of aspects 1 to 64.
[0345] Aspect 125: An apparatus for wireless communication, comprising at least one means for performing a method described in one or more aspects of aspects 1 to 64.
[0346] Aspect 126: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform a method described in one or more aspects of aspects 1 to 64.
[0347] Aspect 127: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform a method described in one or more of aspects 1 to 64.
[0348] Aspect 128: An apparatus for wireless communication in 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 described in one or more aspects of aspects 65 to 118.
[0349] Aspect 129: A device for wireless communication comprising a memory and one or more processors coupled to the memory, wherein the one or more processors are configured to perform a method described in one or more aspects of aspects 65 to 118.
[0350] Aspect 130: An apparatus for wireless communication, comprising at least one means for performing a method described in one or more aspects of aspects 65 to 118.
[0351] Aspect 131: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform a method described in one or more aspects of aspects 65 to 118.
[0352] Aspect 132: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform a method described in one or more of aspects 65 to 118.
[0353] Aspect 133: An apparatus for wireless communication in 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 described in one or more aspects of aspects 119 to 120.
[0354] Aspect 134: A device for wireless communication comprising a memory and one or more processors coupled to the memory, wherein the one or more processors are configured to perform a method described in one or more aspects of aspects 119 to 120.
[0355] Aspect 135: An apparatus for wireless communication, comprising at least one means for performing a method described in one or more aspects of aspects 119 to 120.
[0356] Aspect 136: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform a method described in one or more aspects of aspects 119 to 120.
[0357] Aspect 137: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform a method described in one or more of aspects 119 to 120.
[0358] Aspect 138: An apparatus for wireless communication in 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 described in one or more aspects of aspects 121 to 122.
[0359] Aspect 139: A device for wireless communication comprising a memory and one or more processors coupled to the memory, wherein the one or more processors are configured to perform a method described in one or more aspects of aspects 121 to 122.
[0360] Aspect 140: An apparatus for wireless communication, comprising at least one means for performing a method described in one or more aspects of aspects 121 to 122.
[0361] Aspect 141: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform a method described in one or more aspects of aspects 121 to 122.
[0362] Aspect 142: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform a method described in one or more of aspects 121 to 122.
[0363] The above disclosure provides illustration and description, but is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the embodiments.
[0364] As used herein, the term "component" shall be broadly construed as hardware and / or a combination of hardware and software. "Software" shall be broadly construed to mean, among other examples, instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, and / or functions, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. As used herein, a processor is implemented in hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein may be implemented in different 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 limiting. Thus, the operation and behavior of the systems and / or methods are described herein without reference to specific software code. It should be understood that software and hardware may be designed to implement the systems and / or methods based at least in part on the description herein.
[0365] As used herein, "meeting a threshold" can refer to a value being 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., depending on the context.
[0366] Although particular combinations of features are recited in the claims and / or disclosed herein, these combinations are not intended to limit the disclosure of various aspects. Indeed, many of these features may be combined in ways not specifically recited in the claims and / or disclosed herein. While each dependent claim listed below may depend directly on only one claim, the disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set. As used herein, a phrase referring to "at least one of" a list of items refers to any combination of those 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 order of a, b, and c).
[0367] No element, act, or instruction used herein should be construed as critical or required unless explicitly stated. Additionally, as used herein, the articles "a" and "an" are intended to include one or more items and may be used interchangeably with "one or more." Additionally, as used herein, the article "the" is intended to include one or more items referred to with the article "the" and may be used interchangeably with "one or more." Additionally, 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. Additionally, as used herein, terms such as "has," "have," and "having" are intended to be open-ended terms. Additionally, the phrase "based on" is intended to mean "based at least in part on," unless expressly specified otherwise. Also, as used herein, the term "or" is intended to be inclusive when used consecutively and may be used interchangeably with "and / or" unless expressly stated otherwise (e.g., when used in combination with "either" or "only one of"). [Explanation of symbols]
[0368] 100 Wireless Networks 102a Macrocell 102b Picocell 102c Femtocell 110 base station 110a BS, Macro BS 110b BS 110c BS 110d BS, relay BS 120 UE 120a UE 120b UE 120c UE 120d UE 120e UE 130 Network Controller 200 Example of a base station 110 212 Data Sources 220 Transmit Processor 230 Transmit (TX) Multiple Input Multiple Output (MIMO) Processor 232 Modulator, Demodulator, MOD / DEMOD 232a~232t Modulator (MOD) 234 Antenna 234a~234t antenna 236 MIMO detector 238 Receive Processor 239 Data Sink 240 Controllers / Processors 242 memory 244 communication unit 246 Scheduler 252 Antenna 252a~252r Antenna 254 Demodulator, MOD / DEMOD, Modulator and / or Demodulator 254a~254r Demodulator (DEMOD), Modulator 256 MIMO detector 258 Receive Processor 260 Data Sink 262 Data Sources 264 Transmit Processor 266 TX MIMO Processor 280 Controller / Processor 282 memory 284 Housing 290 Controller / Processor 292 memory 294 Communication Unit 300 NTN deployment examples, examples 310 NTN deployment examples, e.g. 320 satellite 330 Service Link 330 Service Link 340 satellite 350 NTN Gateway, Gateway 350 Gateway 360 Feeder Link 370 RF Link 400 Examples of beam management within NTN 405 Satellite 420 Center of beam footprint 430 Arrow Example associated with 500 BWP switching 505 Wireless Communication Devices 515 First Beam 520 Second Beam 600 BWP Switching Associated Examples 605 Wireless Communication Devices Examples associated with 700 BWP switching 705 Wireless Communication Devices Example associated with 800 BWP switching 805 Wireless Communication Devices 900 processes 1000 processes
Claims
1. 1. An apparatus for wireless communication in a user equipment, comprising: Memory and one or more processors coupled to the memory; wherein the one or more processors: receiving a bandwidth portion configuration indicating one or more bandwidth portions associated with at least one beam and a type of beam switching, the type of beam switching indicating intra-beam bandwidth portion switching or inter-beam bandwidth portion switching; switching from a first bandwidth portion of the one or more bandwidth portions as the active bandwidth portion to a second bandwidth portion of the one or more bandwidth portions as the active bandwidth portion based at least in part on the bandwidth portion configuration; An apparatus configured to:
2. 10. The apparatus of claim 1, wherein the at least one beam is associated with a non-terrestrial based wireless communication device.
3. The apparatus of claim 2, wherein the non-terrestrial wireless communication device is a non-terrestrial base station or a non-terrestrial relay station.
4. The bandwidth sub-configuration comprises: a first initial uplink bandwidth portion associated with a first beam; a first initial downlink bandwidth portion associated with the first beam; a second initial uplink bandwidth portion associated with a second beam; and a second initial downlink bandwidth portion associated with the second beam; and / or The bandwidth sub-configuration comprises: a first default uplink bandwidth portion associated with the first beam; a first default downlink bandwidth portion associated with the first beam; a second default uplink bandwidth portion associated with the second beam; and a second default downlink bandwidth portion associated with the second beam; 10. The device of claim 1, wherein:
5. 10. The apparatus of claim 1, wherein the one or more processors are further configured to receive a beam switching time configuration indicating a beam switching time associated with switching by the user equipment from a first beam to a second beam as an active beam.
6. The one or more processors are further configured to: transmit an indication of a maximum beam switching time associated with the user equipment; The apparatus of claim 5 , wherein the beam switching time is based at least in part on the maximum beam switching time.
7. The one or more processors are further configured to: transmit an indication of an antenna type associated with the user equipment; The apparatus of claim 5 , wherein the beam switching time is based at least in part on the antenna type.
8. The antenna type: Motor steered antenna type, Active electronically scanned array type, or combinations of these 8. The apparatus of claim 7, comprising at least one of:
9. The device described in claim 1, wherein the one or more processors are further configured to receive a pre-compensation switching time configuration indicating a pre-compensation switching time associated with switching by the user equipment from a first frequency pre-compensation to a second frequency pre-compensation as active pre-compensation.
10. the one or more processors: an inter-beam bandwidth portion switching procedure, wherein the first bandwidth portion is associated with a first one of the at least one beam and the second bandwidth portion is associated with a second one of the at least one beam; or an intra-beam bandwidth portion switching procedure, wherein the first bandwidth portion is associated with the first beam of the at least one beam and the second bandwidth portion is associated with the first beam of the at least one beam.
10. The apparatus of claim 1, further configured to switch from the first bandwidth portion to the second bandwidth portion by performing a bandwidth portion switching procedure comprising:
11. The bandwidth sub-configuration: the inter-beam bandwidth portion switching procedure; the first bandwidth portion; an association between the first bandwidth portion and the first beam; the second bandwidth portion; an association between the second bandwidth portion and the second beam; or combinations of these and / or The bandwidth sub-configuration comprises: the intra-beam bandwidth portion switching procedure; the first bandwidth portion; an association between the first bandwidth portion and the first beam; the second bandwidth portion; an association between the second bandwidth portion and the first beam; or combinations of these 11. The device of claim 10, wherein:
12. The device described in Claim 11, wherein the intra-beam bandwidth portion switching procedure is configured using a radio resource control message.
13. 10. The apparatus of claim 1, wherein the bandwidth portion configuration is conveyed in downlink control information including a first set of indices associated with intra-beam bandwidth portions and a second set of indices associated with inter-beam bandwidth portions.
14. the bandwidth portion type includes an inter-beam bandwidth portion type; 10. The apparatus of claim 1, wherein the one or more processors are configured to reset a default bandwidth portion associated with the user equipment to correspond to a default bandwidth portion associated with a target beam associated with the second bandwidth portion.
15. The apparatus of claim 1 , wherein the bandwidth portion configuration is conveyed within downlink control information indicating a bandwidth portion type corresponding to the one or more bandwidth portions.
16. The downlink control information, wherein the downlink control information indicates a bandwidth portion identifier corresponding to the second bandwidth portion. the bandwidth portion type corresponds to the second bandwidth portion; the one or more processors are configured to switch to the second bandwidth portion based at least in part on the bandwidth portion identifier and the bandwidth portion type.
16. The apparatus of claim 15.
17. The device described in Claim 15, wherein the downlink control information indicates the bandwidth portion type using a bandwidth portion type field having at least one bit.
18. The downlink control information comprises: a first scrambling sequence applied to the rate-matched channel encoder output, the first scrambling sequence indicating a first bandwidth portion type; or a second scrambling sequence applied to the rate matched channel encoder output, the second scrambling sequence indicating a second bandwidth portion type; to indicate the bandwidth portion type, 16. The apparatus of claim 15.
19. The downlink control information: a first wireless network temporary identifier subtype of the wireless network temporary identifier to indicate the first bandwidth portion type; or a second wireless network temporary identifier subtype of the wireless network temporary identifier for indicating a second bandwidth portion type; 16. The apparatus of claim 15, wherein the bandwidth portion type is indicated using a 20. The downlink control information: a first demodulation reference signal sequence indicating a first bandwidth portion type; or a second demodulation reference signal sequence indicating a second bandwidth portion type; 16. The apparatus of claim 15, wherein the bandwidth portion type is indicated using a
21. the bandwidth portion configuration is conveyed in downlink control information; 10. The apparatus of claim 1, wherein the one or more processors are further configured to receive a bandwidth portion type indicator, the bandwidth portion type indicator being carried within an encoded communication including the downlink control information.
22. The apparatus described in claim 21, wherein the one or more processors are configured to directly decode a physical downlink control channel payload containing the encoded communication to extract the bandwidth portion type indicator.
23. 10. The apparatus of claim 1, wherein the bandwidth portion configuration configures a bandwidth portion identifier field to include a tuple having a unique tuple identifier indicative of a bandwidth portion identifier and a beam identifier.
24. The device described in claim 23, wherein the beam identifier indicates the beam identified based at least in part on a determination that the user equipment is likely to intercept the beam.
25. the bandwidth portion configuration indicates the one or more bandwidth portions by indicating one or more corresponding bandwidth portion identifiers; The bandwidth sub-configuration comprises: downlink control information based at least in part on the one or more bandwidth portions, including one or more in-beam bandwidth portions; or a medium access control control element based at least in part on the one or more bandwidth portions, including one or more inter-beam bandwidth portions; or the bandwidth portion configuration indicates the one or more bandwidth portions by indicating one or more corresponding bandwidth portion identifiers; The bandwidth sub-configuration comprises: downlink control information based at least in part on the one or more bandwidth portions, including one or more in-beam bandwidth portions; or a radio resource control message based at least in part on the one or more bandwidth portions, the one or more bandwidth portions including one or more inter-beam bandwidth portions; or the bandwidth portion configuration indicates the one or more bandwidth portions by indicating one or more corresponding bandwidth portion identifiers; The bandwidth sub-configuration comprises: downlink control information based at least in part on the one or more bandwidth portions, including one or more inter-beam bandwidth portions; a medium access control control element based at least in part on said one or more bandwidth portions, including one or more intra-beam bandwidth portions; or a radio resource control message based at least in part on the one or more bandwidth portions, the one or more bandwidth portions including one or more intra-beam bandwidth portions; The device of claim 1 , wherein the device is transported in a
26. the first bandwidth portion is associated with a first beam and the second bandwidth portion is associated with a second beam; The apparatus of claim 1 , wherein the one or more processors are configured to receive downlink control information having a dedicated downlink control information format corresponding to inter-beam bandwidth portion switching.
27. The device described in Claim 26, wherein the one or more processors are configured to switch from the first bandwidth portion to the second bandwidth portion based at least in part on the downlink control information.
28. The apparatus of claim 26, wherein the one or more processors are configured to receive an indication of the dedicated downlink control information format.
29. The apparatus of claim 26, wherein the one or more processors are further configured to transmit a feedback message acknowledging receipt of the downlink control information.
30. The one or more processors: receiving a resource allocation including uplink resources; transmitting a scheduling request using the uplink resource and the second bandwidth portion; 30. The apparatus of claim 29, further configured to:
31. 1. An apparatus for wireless communication in a wireless communication device, comprising: Memory and one or more processors coupled to the memory; wherein the one or more processors: transmitting to the user equipment a bandwidth portion configuration indicating one or more bandwidth portions associated with at least one beam and a type of beam switching, the type of beam switching indicating intra-beam bandwidth portion switching or inter-beam bandwidth portion switching; switching from a first bandwidth portion of the one or more bandwidth portions as the active bandwidth portion to a second bandwidth portion of the one or more bandwidth portions as the active bandwidth portion based at least in part on the bandwidth portion configuration. The apparatus is configured to:
32. 1. A method of wireless communication performed by a user equipment, comprising: receiving a bandwidth portion configuration indicating one or more bandwidth portions associated with at least one beam and a type of beam switching, wherein the type of beam switching indicates intra-beam bandwidth portion switching or inter-beam bandwidth portion switching; switching from a first bandwidth portion of the one or more bandwidth portions as the active bandwidth portion to a second bandwidth portion of the one or more bandwidth portions as the active bandwidth portion based at least in part on the bandwidth portion configuration; A method comprising:
33. 1. A method of wireless communication performed by a wireless communication device, comprising: transmitting to the user equipment a bandwidth portion configuration indicating one or more bandwidth portions associated with at least one beam and a type of beam switching, the type of beam switching indicating intra-beam bandwidth portion switching or inter-beam bandwidth portion switching; switching from a first bandwidth portion of the one or more bandwidth portions as the active bandwidth portion to a second bandwidth portion of the one or more bandwidth portions as the active bandwidth portion based at least in part on the bandwidth portion configuration; A method comprising: