Classify the nodes to be served based on their relative mobility states with respect to the serving nodes

Abstract

Aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless node may identify one or more parameters indicating mobility of a served node relative to a serving node. The wireless node may classify the served node into a class among a plurality of classes based at least in part on the one or more parameters. In some aspects, the plurality of classes may include at least a first class for a served node having low mobility relative to the serving node and a second class for a served node having high mobility relative to the serving node. Many other aspects are provided.

Description

[0001] Cross - Reference to Related Applications

[0002] This patent application claims the benefit of U.S. Provisional Patent Application No. 62 / 989,429, filed on March 13, 2020, entitled "CLASSIFYING NODES BASED ON MOBILITY STATE", and U.S. Non - Provisional Patent Application No. 17 / 199,124, filed on March 11, 2021, entitled "CLASSIFYING NODES BASED ON MOBILITY STATE", which are hereby incorporated by reference in their entirety. Technical Field

[0003] Aspects of the present disclosure generally relate to wireless communication, and to techniques and apparatus for classifying nodes based on mobility state. Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. A typical wireless communication system may employ a multiple access technology that is capable of supporting communication with multiple user equipments (UEs) 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) systems. LTE / Advanced LTE (LTE - Advanced) is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard released by the Third Generation Partnership Project (3GPP).

[0005] A wireless network may include multiple base stations (BSs) that can support communication for multiple user equipments (UEs). The UEs may communicate with the BSs via downlink and 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 will be described in detail herein, the BS may be referred to as Node B, gNB, access point (AP), radio head, transmit - receive point (TRP), New Radio (NR) BS, 5G Node B, etc.

[0006] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate at the municipal, national, regional, or even global level. NR (which can also be referred to as 5G) is a set of enhancements to the LTE mobile standard released by 3GPP. NR is designed to better support mobile broadband Internet access by, for example, improving spectral efficiency, reducing costs, enhancing services, leveraging new spectrums, and 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 referred to as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation to better integrate with other open standards. However, as the demand for mobile broadband access continues to increase, further improvements to LTE, NR, and other radio access technologies remain useful. Summary of the Invention

[0007] In some aspects, a method of wireless communication performed by a wireless node may include: identifying one or more parameters indicative of the mobility of a served node relative to a serving node; and classifying the served node into a category among a plurality of categories at least partially based on the one or more parameters, wherein the plurality of categories at least include a first category for served nodes having low mobility relative to the serving node and a second category for served nodes having high mobility relative to the serving node.

[0008] In some aspects, a wireless node for wireless communication may include a memory and one or more processors coupled to the memory, the one or more processors configured to: identify one or more parameters indicative of the mobility of a served node relative to a serving node; and classify the served node into a category among a plurality of categories at least partially based on the one or more parameters, wherein the plurality of categories at least include a first category for served nodes having low mobility relative to the serving node and a second category for served nodes having high mobility relative to the serving node.

[0009] In some aspects, a non-transitory computer-readable medium can store one or more instructions for wireless communication. When executed by one or more processors of a wireless node, the one or more instructions can cause the one or more processors to: identify one or more parameters indicating the mobility of a served node relative to a serving node; and classify the served node into a category among a plurality of categories at least in part based on the one or more parameters, wherein the plurality of categories at least includes a first category for served nodes having low mobility relative to the serving node and a second category for served nodes having high mobility relative to the serving node.

[0010] In some aspects, an apparatus for wireless communication can include: means for identifying one or more parameters indicating the mobility of a served node relative to a serving node; and means for classifying the served node into a category among a plurality of categories at least in part based on the one or more parameters, wherein the plurality of categories at least includes a first category for served nodes having low mobility relative to the serving node and a second category for served nodes having high mobility relative to the serving node.

[0011] As substantially described herein with reference to the drawings and the specification and as shown in the drawings and the specification, aspects generally include methods, apparatuses, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems.

[0012] The features and technical advantages of examples in accordance with the present disclosure have been outlined rather broadly above so that the detailed description that follows may be better understood. Other features and advantages will be described hereinafter. The disclosed concepts and specific examples can be readily used as a basis for modifying or designing other structures for achieving the same purposes of the present disclosure. Such equivalent structures do not depart from the scope of the appended claims. When considered in conjunction with the drawings, the features (the organization and method of operation) of the concepts disclosed herein and the associated advantages will be better understood from the following description. Each of the drawings is provided for purposes of illustration and description and is not a definition of the limits of the claims.

[0013] While aspects are described herein by way of illustration of some examples, those skilled in the art will understand that these aspects can be implemented in many different arrangements and scenarios. The techniques described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or packaging arrangements. For example, some aspects can be implemented via integrated chip embodiments or other non-module component-based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial devices, retail / purchase devices, medical devices, or artificial intelligence-enabled devices). Aspects can be implemented in 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 can include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals can include multiple components for analog and digital purposes (e.g., hardware components including antennas, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders, or summers). It is contemplated that the aspects described herein can be practiced in a variety of devices, components, systems, distributed arrangements, or end-user devices of different sizes, shapes, and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To enable a more particular understanding of the above-described features of the present disclosure, a more specific description can be obtained by referring to the aspects, some of which are illustrated in the accompanying drawings. It should be noted, however, that the drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting its scope, as the description may admit other equivalent aspects. The same reference numerals in different drawings can identify the same or similar elements.

[0015] Figure 1 is a diagram illustrating an example of a wireless communication network according to the present disclosure.

[0016] Figure 2 is a diagram illustrating an example of communication between a base station and a UE in a wireless network according to the present disclosure.

[0017] Figure 3 is a diagram illustrating an example of a radio access network according to the present disclosure.

[0018] Figure 4 is a diagram illustrating an example of an integrated access and backhaul (IAB) network architecture according to the present disclosure.

[0019] Figure 5 is a diagram illustrating an example of classifying nodes based on a mobility state according to the present disclosure.

[0020] Figure 6FIG. is a diagram illustrating an example process performed, for example, by a wireless node in accordance with the present disclosure. DETAILED DESCRIPTION

[0021] Aspects of the present disclosure are described more fully hereinafter 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 provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, one of ordinary skill in the art should appreciate that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether implemented independently or combined with any other aspect of the present disclosure. For example, any number of the aspects set forth herein may be used to implement an apparatus or practice a method. Additionally, the scope of the present disclosure is intended to cover such an apparatus or method practiced using other structures, functions, or combinations of structures and functions in addition to or other than the aspects of the present disclosure set forth 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.

[0022] Certain aspects of a telecommunications system will now be presented with reference to various apparatuses and techniques. These apparatuses and methods will be described in the following detailed description and are illustrated in the drawings by various boxes, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or combinations thereof. Whether these elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.

[0023] Note that although terms typically associated with 5G or new radio (NR) radio access technology (RAT) may be used herein to describe aspects, aspects of the present disclosure may be applied to other RATs (e.g., 3G RAT, 4G RAT, and / or RATs after 5G (e.g., 6G)).

[0024] Figure 1FIG. is a diagram illustrating an example of a wireless network 100 in accordance with the present disclosure. Among other examples, the wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network. The wireless network 100 may include a plurality of base stations 110 (shown as BS110a, BS110b, BS110c, and BS110d) 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 specific geographic area. In 3GPP, the term "cell" may refer to the coverage area of a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.

[0025] The BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., with a radius of several kilometers) and may allow unrestricted access by UEs with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with a service subscription. A femto cell may cover a relatively small geographic area (e.g., in a home) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed user group (CSG)). The BS for a macro cell may be referred to as a macro BS. The BS for a pico cell may be referred to as a pico BS. The BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 the example shown, BS110a may be a macro BS for macro cell 102a, BS110b may be a pico BS for pico cell 102b, and BS110c may be a femto BS for femto cell 102c. The 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.

[0026] In some aspects, a cell may not necessarily be stationary, and the geographic area of a cell may move according to the location of a mobile BS. In some aspects, the BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (e.g., direct physical connections or virtual networks) using any suitable transport network.

[0027] The 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 capable of relaying transmissions for other UEs. In Figure 1 the example shown in

[0028] the relay BS 110d may communicate with the macro BS 110a and the UE 120d to facilitate communication between the BS 110a and the UE 120d. A relay BS may also be referred to as a relay station, a relay base station, a relay, etc.

[0029] The network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly via a wireless or wired backhaul.

[0030] The UEs 120 (e.g., 120a, 120b, 120c) may be scattered throughout the wireless network 100, and each UE may be stationary or mobile. A UE may also be referred to as an access terminal, a terminal, a mobile station, a subscriber unit, a station, etc. A UE may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet device, a camera, a gaming device, a netbook, a smartbook, a ultrabook, a medical device or apparatus, a biometric sensor / device, a wearable device (a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet, etc.)), an entertainment device (e.g., a music or video device, or a satellite radio unit, etc.), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing device, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[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, etc., which may communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide a connection to or from a network (e.g., a wide area network such as the Internet or a cellular network) via, for example, a wired or wireless communication link. Some UEs may be considered Internet of Things (IoT) devices, and / or may be implemented as narrowband IoT (NB-IoT) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some aspects, the processor component and the memory component may be coupled together. For example, the processor component (e.g., one or more processors) and the memory component (e.g., a memory) may be operatively coupled, communicatively coupled, electrically coupled, and / or electronically coupled.

[0032] Generally, any number of wireless networks may be deployed in a given geographical area. Each wireless network may support a specific RAT and may operate on one or more frequencies. The RAT may also be referred to as a radio technology, an air interface, etc. The frequency may also be referred to as a carrier, a frequency channel, etc. Each frequency may support a single RAT in a given geographical area to avoid interference between wireless networks of different RATs. In some cases, an NR or 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 using one or more sidelink channels (e.g., without using the base station 110 as an intermediary for communicating with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, or vehicle-to-infrastructure (V2I), etc.), mesh networks, etc. In such cases, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the base station 110.

[0034] Devices of the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, frequency bands, channels, etc. based on frequency or wavelength. For example, devices of the wireless network 100 can communicate using an operating frequency band having a first frequency range (FR1) that can span from 410 MHz to 7.125 GHz, and / or can communicate using an operating frequency band having a second frequency range (FR2) that can span from 24.25 GHz to 52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is generally referred to as the "sub-6 GHz" band. Similarly, FR2 is generally referred to as the "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) recognized by the International Telecommunication Union (ITU) as the "millimeter wave" band. Thus, unless otherwise specifically stated, it should be understood that terms such as "sub-6 GHz" (if used herein) can broadly represent frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise specifically stated, it should be understood that terms such as "millimeter wave" (if used herein) can broadly represent frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 can be modified, and the techniques described herein are applicable to these modified frequency ranges.

[0035] As noted above, Figure 1 is provided merely as an example. Other examples may be different from those Figure 1 described.

[0036] Figure 2 is a diagram of Example 200 showing communication between the base station 110 and the UE 120 in the wireless network 100 in accordance with the present disclosure. The base station 110 can be equipped with T antennas 234a to 234t, and the UE 120 can be equipped with R antennas 252a to 252r, where generally, 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 a UE at least in part based on channel quality indicators (CQIs) received from each UE, process (e.g., encode and modulate) the data for the UE at least in part based on the MCSs selected for each UE, and provide data symbols for 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, upper layer signaling, etc.), and provide overhead symbols and control symbols. Transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signal (CRS) or demodulation reference signal (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)). 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 the 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 the UE 120, antennas 252a through 252r may receive downlink signals from the base station 110 and / or other base stations, and may provide the received signals to demodulators (DEMOD) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, down-convert, 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. The 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 the detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide the decoded data for the UE 120 to the data sink 260, and provide the decoded control information and system information to the 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 reference signal received power (RSRP) parameters, received signal strength indicator (RSSI) parameters, reference signal received quality (RSRQ) parameters, and / or channel quality indicator (CQI) parameters, etc. In some aspects, one or more components of the UE 120 may be included in the 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 through 234t and / or antennas 252a through 252r) may include one or more antenna panels, antenna groups, collections of antenna elements, and / or antenna arrays, or may be included within one or more antenna panels, antenna groups, collections of antenna elements, and / or antenna arrays, etc. Antenna panels, antenna groups, collections of antenna elements, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, collections of antenna elements, and / or antenna arrays may include collections of coplanar antenna elements and non-coplanar antenna elements. Antenna panels, antenna groups, collections of antenna elements, and / or antenna arrays may include antenna elements within a single housing and multiple antenna elements within multiple housings. Antenna panels, antenna groups, collections of antenna elements, and / or antenna arrays may include one or more antenna elements coupled to one or more transmit and / or receive components (e.g., Figure 2 one or more components of)

[0041] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). 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 the TX MIMO processor 266 (if applicable), further processed by the modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of the UE 120 may be included in a modem in the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of the antenna 252, the modulator and / or demodulator 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, and / or the TX MIMO processor 266. The transceiver may be used by a processor (e.g., the controller / processor 280) and the memory 282 to perform aspects of any of the methods described herein (e.g., as referenced Figures 5-6 as described).

[0042] At the base station 110, the uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain the decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule the UE 120 for downlink and / or uplink communication. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included in a modem in the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of the antenna 234, the modulator and / or demodulator 232, the MIMO detector 236, the receive processor 238, the transmit processor 220, and / or the TX MIMO processor 230. The transceiver may be used by a processor (e.g., the controller / processor 240) and the memory 242 to perform aspects of any of the methods described herein (e.g., as referenced Figures 5-6 as described).

[0043] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 any other components of may perform one or more techniques associated with classifying a node based on a mobility state, as described in more detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 any other components of may perform or direct the operation of, for example, Figure 6 process 600 and / or other processes described herein. Memories 242 and 282 may store data and program code for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, when executed by one or more processors of base station 110 and / or UE 120 (e.g., executed directly, or after compilation, conversion, and / or interpretation), the one or more instructions may cause the one or more processors, UE 120, and / or base station 110 to perform or direct the operation of, for example, Figure 6 process 600 and / or other processes described herein. In some aspects, executing the instructions may include running the instructions, converting the instructions, compiling the instructions, and / or interpreting the instructions, etc.

[0044] In some aspects, a wireless node may include: a unit for identifying one or more parameters indicative of a mobility of a served node relative to a serving node; and a unit for classifying the served node into a category among a plurality of categories based at least in part on the one or more parameters, where the plurality of categories includes at least a first category for a served node having a low mobility relative to the serving node and a second category for a served node having a high mobility relative to the serving node, etc. In some aspects, such a unit may include one or more components of UE 120 described in conjunction with Figure 2 e.g., controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, etc. Additionally or alternatively, such a unit may include one or more components of base station 110 described in conjunction with Figure 2 e.g., antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD232, antenna 234, etc.

[0045] Although Figure 2The boxes in [description] are shown as separate components, but the functionality described above for the boxes can be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, receive processor 258, and / or TX MIMO processor 266 can be performed by or under the control of the controller / processor 280.

[0046] As noted above, Figure 2 is provided only as an example. Other examples may be different from the example described with respect to Figure 2 the example described.

[0047] Figure 3 FIG. [figure number] is a diagram illustrating an example 300 of a radio access network in accordance with the present disclosure.

[0048] As shown by reference numeral 305, a conventional (e.g., 3G, 4G, or LTE) radio access network may include a plurality of base stations 310 (e.g., access nodes (AN)), where each base station 310 communicates with a core network via a wired backhaul link 315 (such as a fiber optic connection). The base stations 310 may communicate with a UE 320 via an access link 325, which may be a wireless link. In some aspects, Figure 3 the base station 310 shown may be Figure 1 the base station 110 shown. In some aspects, Figure 3 the UE 320 shown may be Figure 1 the UE 120 shown.

[0049] As shown by reference numeral 330, a radio access network may include a wireless backhaul network, sometimes referred to as an integrated access backhaul (IAB) network. In an IAB network, at least one base station is an anchor base station 335, which communicates with a core network via a wired backhaul link 340 (such as a fiber optic connection). The anchor base station 335 may also be referred to as an IAB provider (or IAB-provider). The IAB network may include one or more non-anchor base stations 345, sometimes referred to as relay base stations or IAB nodes (or IAB-nodes). The non-anchor base stations 345 may communicate directly with the anchor base station 335 or indirectly with the anchor base station 335 (e.g., via one or more non-anchor base stations 345) via one or more backhaul links 350 to form a backhaul path to the core network for carrying backhaul traffic over one or more hops. The backhaul link 350 may be a wireless link. The anchor base station 335 and / or non-anchor base stations 345 may communicate with one or more UEs 355 via an access link 360, which may be a wireless link for carrying access traffic. In some aspects, Figure 3 the anchor base station 335 and / or non-anchor base stations 345 shown may be Figure 1The base station 110 shown. In some aspects, Figure 3 The UE 355 shown may be Figure 1 The UE 120 shown.

[0050] As indicated by reference numeral 365, in some aspects, a radio access network including an IAB network may utilize millimeter wave technology and / or directional communication (e.g., beamforming) for communication between a base station and / or a UE (e.g., between two base stations, between two UEs, and / or between a base station and a UE). For example, the wireless backhaul link 370 between base stations may use millimeter wave signals to carry information, and / or may be directed to a target base station using beamforming. Similarly, the wireless access link 375 between a UE and a base station may use millimeter wave signals, and / or may be directed to a target radio node (e.g., a UE and / or a base station). In this way, inter-link interference can be reduced.

[0051] Figure 3 The configurations of the base stations and UEs in are shown as examples, and other examples are contemplated. For example, Figure 3 One or more of the base stations shown in may be replaced by one or more UEs communicating via a UE-to-UE access network (e.g., a peer-to-peer network or a device-to-device network, etc.). In this case, the anchor node may refer to a UE that communicates directly with a base station (e.g., an anchor base station or a non-anchor base station).

[0052] As indicated above, provided Figure 3 as an example. Other examples may be different from those regarding Figure 3 described examples.

[0053] Figure 4 is a diagram illustrating an example 400 of an IAB network architecture according to the present disclosure.

[0054] As Figure 4 shown, the IAB network may include an IAB donor 405 (shown as IAB-donor 405) connected to the core network via a wired connection (shown as a wired backhaul). For example, the Ng interface of the IAB donor 405 may terminate at the core network. Additionally or alternatively, the IAB donor 405 may be connected to one or more devices of the core network that provide core access and mobility management functions (e.g., AMF). In some aspects, the IAB donor 405 may include a base station 110, such as an anchor base station, as described above in connection with Figure 3As described above and as shown in the figure, the IAB provider 405 may include a Central Unit (CU) that may perform Access Node Controller (ANC) functions, AMF functions, and / or other suitable functions. The CU may configure the Distributed Units (DUs) of the IAB provider 405 and / or may configure one or more IAB nodes 410 (e.g., the Mobile Termination (MT) function and / or DU of the IAB node 410) connected to the core network via the IAB provider 405. Thus, for example, by using control messages and / or configuration messages (e.g., Radio Resource Control (RRC) configuration messages, F1 Application Protocol (F1AP) messages, Packet Data Convergence Protocol (PDCP) messages, and / or other suitable messages), the CU of the IAB provider 405 may control and / or configure the entire IAB network connected to the core network via the IAB provider 405.

[0055] As Figure 4 Further shown therein, the IAB network may include IAB nodes 410 (shown as IAB-Node 1, IAB-Node 2, and IAB-Node 3) connected to the core network via the IAB provider 405. As shown in the figure, the IAB node 410 may include an MT function (sometimes also referred to as the UE function (UEF)) and may include a DU function (sometimes also referred to as the Access Node Function (ANF)) (e.g., Radio Link Control (RLC) function, Medium Access Control (MAC) function, Physical Layer (PHY) function, and / or other suitable functions). The MT function of the IAB node 410 (e.g., a child node) may be controlled and / or scheduled by another IAB node 410 (e.g., the parent node of the child node) and / or by the IAB provider 405. The DU function of the IAB node 410 (e.g., a parent node) may control and / or schedule other IAB nodes 410 (e.g., the child nodes of the parent node) and / or the UE 120. Thus, the DU may be referred to as a scheduling node or a scheduling component, and the MT may be referred to as a scheduled node or a scheduled component. In some aspects, the IAB provider 405 may include a DU function but not an MT function. That is, the IAB provider 405 may configure, control, and / or schedule the communication of the IAB nodes 410 and / or the UE 120. The UE 120 may include only an MT function and not a DU function. That is, the communication of the UE 120 may be controlled and / or scheduled by the IAB provider 405 and / or the IAB node 410 (e.g., the parent node of the UE 120).

[0056] When the first node controls and / or schedules the communication of the second node (e.g., when the first node provides the DU function for the MT function of the second node), the first node can be referred to as the parent node of the second node, and the second node can be referred to as the child node of the first node. The child node of the second node can be referred to as the grandchild node of the first node. Thus, the DU function of the parent node can control and / or schedule the communication of the child nodes of the parent node. The parent node can be the IAB donor 405 or the IAB node 410, and the child node can be the IAB node 410 or the UE 120. The communication of the MT function of the child node can be controlled and / or scheduled by the parent node of the child node.

[0057] As Figure 4 further shown therein, the link between the UE 120 (e.g., which only has the MT function and does not have the DU function) and the IAB donor 405, or the link between the UE 120 and the IAB node 410 can be referred to as the access link 415. The access link 415 can be a radio access link, which provides radio access to the core network for the UE 120 via the IAB donor 405 and optionally via one or more IAB nodes 410. Thus, Figure 4 the network shown can be referred to as a multi-hop network or a wireless multi-hop network.

[0058] As Figure 4 further shown therein, the link between the IAB donor 405 and the IAB node 410 or between two IAB nodes 410 can be referred to as the backhaul link 420. The backhaul link 420 can be a wireless backhaul link, which provides radio access to the core network for the IAB node 410 via the IAB donor 405 and optionally via one or more other IAB nodes 410. In the IAB network, the network resources for wireless communication (e.g., time resources, frequency resources, space resources, etc.) can be shared between the access link 415 and the backhaul link 420. In some aspects, the backhaul link 420 can be the primary backhaul link or the secondary backhaul link (e.g., the backup backhaul link). In some aspects, if the primary backhaul link fails, becomes congested, and / or becomes overloaded, etc., the secondary backhaul link can be used. For example, if the primary backhaul link between the IAB-node 2 and the IAB-node 1 fails, the backup link 425 between the IAB-node 3 and the IAB-node 2 can be used for backhaul communication. As used herein, a node, a wireless node, and / or its variants can refer to the IAB donor 405, the IAB node 410, the UE 120, and / or other suitable wireless communication devices.

[0059] As described above, Figure 4 is provided as an example. Other examples may be different from the example described with respect to Figure 4 the example.

[0060] As described above, in a typical IAB network, IAB nodes (e.g., non-anchor base stations) are stationary (or non-mobile). In contrast, in a mobile IAB network, one or more IAB nodes can have the ability to change position or otherwise move within the IAB network. Generally, such IAB nodes can be referred to as mobile IAB nodes. For example, a mobile IAB node can be installed on a moving object (e.g., a car, a truck, a bus, a train, a taxi, a subway car, a motorcycle, a bicycle, a motorized personal vehicle, an elevator, a cable car, and / or a robot, etc.). Additionally, or alternatively, a mobile IAB node can be provided on an aerial or orbital device (e.g., an unmanned aerial vehicle or drone, an airplane, a helicopter, a satellite, a spaceship, and / or a balloon) and / or a marine vessel (e.g., a ship, a ferry, a passenger ship, and / or a cargo ship, etc.). In a mobile IAB network, there can be a mixture of stationary IAB nodes and mobile IAB nodes. In some cases, mobile IAB nodes can be restricted to be "leaf" nodes in the mobile IAB network. That is, a mobile IAB node can be allowed to be only the last-hop IAB node, where only child access UEs are connected to the mobile IAB node. In some other cases, a mobile IAB node can be allowed to have another IAB node as a child node.

[0061] In some examples, a mobile IAB node can provide an independently mobile cell site. In this case, the mobile IAB node (e.g., a communication device installed on a moving object, an aerial or orbital device, and / or a marine vessel, etc.) can provide a mobile cell site for the surrounding served nodes (e.g., UEs located inside and / or outside a vehicle containing the mobile IAB in an urban area, and / or the MTs of child IAB nodes, etc.). Here, the serving mobile IAB node can move relatively randomly at a relatively low speed (e.g., at an urban speed) and / or over a relatively large distance. In this case, the mobility of a given served node can be determined relative to the serving mobile IAB node. For example, in some cases, the served node can move independently of the serving mobile IAB node (e.g., the movement of the served node is unpredictable from the movement of the serving mobile IAB node), even if the speed of the movement of the served node can be similar to that of the serving mobile IAB node (e.g., the served UE in a vehicle is traveling on the same road as the serving mobile IOB node).

[0062] In some other examples, a mobile IAB node may provide a combined mobile cell site (e.g., on a high-speed train). In this case, the mobile IAB node may be installed on the mobile cell site (e.g., on the top of the high-speed train) to serve other nodes on or in the mobile cell site (e.g., UEs belonging to users traveling inside the high-speed train). Here, the mobility of the serving mobile IAB node may be predictable at relatively high speeds and over relatively large distances. In this usage scenario, the served nodes on or in the mobile cell site may move jointly with the serving mobile IAB node (e.g., the movement of the served nodes is generally predictable based on the movement of the serving mobile IAB node).

[0063] In some other examples, e.g., when a set of loosely coupled nodes served by a mobile IAB node typically move together, the mobile IAB node may facilitate a queue. In this case, a single IAB node may provide network connectivity to nearby nodes. For example, a mobile IAB node installed on a first vehicle traveling on a highway may provide network connectivity to UEs in the first vehicle, the MTs of child IAB nodes, and / or other nodes, as well as UEs, the MTs of child IAB nodes, and / or other nodes in other vehicles traveling in the same direction and at a similar speed on the highway. In this case, the serving mobile IAB node may be connected to the network, while other vehicles may be configured to act as corresponding child nodes. Here, the serving mobile IAB node may move with relatively constant speed and with local predictability over relatively large distances. Additionally, the served nodes may move jointly with the mobile IAB node.

[0064] Thus, in a mobile network (e.g., a mobile IAB network), a served node can typically have a mobility state determined with respect to a given serving node. For example, with respect to a mobile serving node providing a mobile cell site, in cases where the served node is inside the mobile serving node, co-located with the mobile serving node, and / or moving with the mobile serving point, etc. (e.g., the served node is a passenger traveling inside a train acting as a mobile cell site), with respect to the mobile serving node, the served node residing on the mobile cell site or otherwise receiving service through the mobile cell site can have low mobility (or can be considered relatively stationary). Alternatively, in cases where the served node is outside the mobile serving node and / or moving independently of the mobile serving node, etc. (e.g., when a bus acting as a mobile serving node passes by, the served node is a UE belonging to a pedestrian walking on the sidewalk), with respect to the mobile serving node, the served node can have relatively high mobility. Additionally, in some cases, the mobility state associated with a given serving node can change or transition from one state to another (e.g., a UE traveling inside a train acting as a mobile IAB node can change from having low mobility with respect to the mobile IAB node to having high mobility with respect to the mobile IAB node when leaving the train, and vice versa). Moreover, similar issues can apply when determining the relative mobility of a served node and a stationary serving node (e.g., a stationary or slowly moving UE can have low mobility with respect to the serving node, while other UEs moving at high speed can have high mobility with respect to the serving node, and other UEs may fall elsewhere along a spectrum ranging from stationary to highly mobile with respect to the serving node).

[0065] Thus, in a wireless network such as a mobile IAB network, the mobility state of a served node (e.g., a UE and / or MT of a child IAB node) with respect to a serving node (such as a DU of a child IAB node, a DU of an IAB provider, and / or a CU of an IAB provider) can have a significant impact on the operation of the wireless network. For example, served nodes with different mobility states may experience different radio environments (e.g., faster changes in different Doppler characteristics and / or multipath propagation characteristics, etc.), which can affect the performance of the served node as well as various network-related operations (e.g., resource management, local scheduling, beam management, beam tracking, synchronization tracking, positioning, access, and / or paging, etc.). For example, a served node attempting to reside on a highly mobile mobile serving node may need to perform frequent handovers, which can degrade the performance of the served node and increase network overhead, etc. Thus, knowing the mobility state of a given served node with respect to a given serving node (which can be mobile or stationary) can contribute to effective and acceptable performance of the served node and the serving node in a wireless network.

[0066] Some aspects described herein provide techniques and apparatus for classifying served nodes in a wireless network based on the relative mobility between the served node and the serving node. For example, multiple classes can be defined for served nodes having different relative mobilities with respect to the serving node. In some aspects, the classes can at least include a class for served nodes having low mobility with respect to the serving node (e.g., typically having a static position with respect to the position of the serving node, and / or a served node moving in the same direction and at the same speed as the serving node). Additionally, the classes can include another class for served nodes having high mobility with respect to the serving node (e.g., a served node whose distance or direction to the serving node changes by more than a threshold over a period of time, and / or a served node moving independently (such as in a different direction and / or at a different speed compared to the serving node)). Additionally or alternatively, the classes can include classes for served nodes that are stationary with respect to the serving node, have medium mobility with respect to the serving node, etc., or the classes can be defined along a range from stationary to highly mobile or at any other suitable granularity level.

[0067] As used herein, the terms "mobility", "mobility state", "relative mobility", and / or variants thereof can be used interchangeably to refer to: the state and / or degree of motion or movement that a stationary or moving object, device, and / or node is currently experiencing (or is determined or estimated to be experiencing) in two dimensions and / or in three dimensions with respect to the motion or movement associated with another stationary or moving object, device, and / or node. Additionally, while some techniques are described herein in terms of mobility aspects such as speed, direction of movement, and / or other motion-related characteristics, it will be understood that the same or similar techniques can be applied using other relevant aspects of mobility (such as speed, acceleration, deceleration, altitude, elevation, depression, height, depth, attitude, and / or rotation, etc.).

[0068] In some aspects, a served node can be classified into an appropriate category based on one or more parameters indicating a mobility state of the served node relative to a serving node. For example, in some aspects, the one or more parameters can include measurements related to managing beams used to communicate with the served node, uplink channel measurements and / or downlink channel measurements, uplink and / or downlink reception timing, the location of the served node, the duration for which the served node has been resident on the serving node, radio resource management (RRM) measurements reported by the served node and / or other nodes in the wireless network, and the like. Additionally, as described herein, any suitable entity in the wireless network can classify the served node. For example, the served node can be classified by the serving node (e.g., the DU of an IAB node), another network node (e.g., the CU of an IAB donor), the served node (e.g., a UE or MT in a child IAB node), and / or other served nodes. In such a case, one or more entities in the wireless network can access different permutations of one or more parameters indicating a mobility state of the served node relative to the serving node, and the entity attempting to classify the served node can signal the classification to other entities in the wireless network. In this way, one or more network nodes can determine the mobility state of the served node, which can enable the one or more network nodes to communicate with different groups of served nodes using different configurations according to the corresponding mobility states, and thereby improve the performance of the served nodes and the network nodes.

[0069] Figure 5 is a diagram illustrating an example 500 of classifying nodes based on a mobility state according to the present disclosure. As Figure 5As shown, Example 500 includes a serving node 510 that can provide wireless services at a cell site, and a group of served nodes 515-1, 515-2 that are under the coverage of the serving node 510 and receive wireless services from the serving node 510. For example, in some aspects, the serving node 510 can correspond to a base station (e.g., base station 110 and / or base station 310), and the served nodes 515 can each correspond to a UE (e.g., UE 120 and / or UE 320). Additionally or alternatively, in some aspects, the serving node 510 can correspond to a DU associated with an IAB provider (e.g., IAB provider 405), a DU associated with an IAB node (e.g., IAB node 410), and / or another suitable DU, and the served nodes 515 can correspond to a UE (e.g., UE 120) that communicates with the DU associated with the IAB provider or the DU associated with the IAB node via an access link (e.g., access link 415), an MT of a child IAB node that communicates with the DU associated with the parent IAB provider or the DU associated with the IAB provider via a backhaul link (e.g., backhaul link 420), and / or another suitable device that communicates with the DU via a wireless link.

[0070] In addition, as Figure 5 shown, Example 500 includes a wireless node that can classify the served nodes 515-1, 515-2 into a category at least partially based on the respective mobility of the served nodes 515-1, 515-2 relative to the serving node 510. For example, as described above, the cell site associated with the serving node 510 can be a mobile cell site that can move in terms of high speed, medium speed, and / or low speed, etc., according to a random or predictable pattern, and the relative mobility of the served nodes 515-1, 515-2 can depend on whether the served nodes 515-1, 515-2 move with the serving node 510 or independently of the serving node 510, etc. For example, in the case where the cell site associated with the serving node 510 is a mobile cell site, the mobile cell site can be a vehicle (e.g., a bus, a taxi, a train, and / or other suitable vehicles), and the served node 515-1 can be a passenger device located within the mobile cell site, such that the served node 515-1 and the serving node 510 are co-located and move together. Additionally, in Figure 5In the example 500 shown, the served node 515-2 can be a pedestrian device located outside the mobile cell site, such that the served node 515-2 and the serving node 510 are not co-located and move independently of each other. For example, as shown by reference numeral 520, the mobile cell site can change its location, after which the distance and direction between the served node 515-1 and the serving node 510 remain relatively unchanged. However, since the served node 515-2 moves independently of the serving node 510, the distance and / or direction between the served node 515-2 and the serving node 510 change after the mobile cell site changes its location. Accordingly, in this case, the served node 515-1 can have low mobility relative to the serving node 510, while the served node 515-2 can have high mobility relative to the serving node 510.

[0071] Additionally or alternatively, in some aspects, the cell site associated with the serving node 510 can be a stationary cell site with a fixed location, in which case the relative mobility of the served nodes 515-1, 515-2 can depend on the movement of the served nodes 515-1, 515-2 independent of the serving node 510. For example, as shown by reference numeral 520, the served node 515-1 can have a relatively fixed position over time with respect to the serving node 510, and after the served node 515-2 changes its location, the distance and / or direction between the served node 515-2 and the serving node 510 change. Accordingly, in this case, the served node 515-1 can similarly have low mobility relative to the serving node 510, and the served node 515-2 can similarly have high mobility relative to the serving node 510, but in the case of a stationary cell site, the relative mobility generally depends only on the mobility of the served nodes 515-1, 515-2.

[0072] In some aspects, as described above, the wireless node may classify the served nodes 515-1, 515-2 into a category at least in part based on the respective mobility of the served nodes 515-1, 515-2 relative to the serving node 510. For example, the wireless node may correspond to the served nodes 515-1, 515-2, the serving node 510, the CU associated with the serving node 510, and / or another suitable node. As described herein, the wireless node may generally classify the served nodes 515-1, 515-2 into a specific category among a plurality of categories, the plurality of categories including at least a first category for served nodes having low mobility relative to the serving node (e.g., served nodes generally having a static position relative to the position of the serving node, moving in the same direction and at the same speed as compared to the serving node, etc.) and a second category for served nodes having high mobility relative to the serving node (e.g., served nodes whose distance or direction to the serving node changes over time, moving independently (such as in a different direction and / or at a different speed as compared to the serving node), etc.). Accordingly, while some aspects herein may be described around two categories based on low or high relative mobility, it will be understood that the plurality of categories may include additional categories for served nodes that are stationary relative to the serving node, have medium mobility relative to the serving node, etc., or the categories may be defined along a range from stationary to highly mobile or at any other suitable granularity level.

[0073] As in Figure 5 and as shown by reference numeral 530, the wireless node may classify the served nodes at least in part based on one or more parameters indicating the mobility of the served nodes (e.g., served node 515-1, served node 515-2, etc.) relative to the serving node (e.g., serving node 510). For example, in some aspects, the one or more parameters may include measurements related to managing the beams used for communication with the serving node, uplink channel measurements and / or downlink channel measurements, uplink and / or downlink reception timing, the position of the served node, the duration for which the served node has been resident on the serving node, and / or RRM measurements reported by the served node and / or other nodes in the wireless network, etc. Additionally, in some aspects, the wireless node may determine the mobility of the served node relative to the serving node (and thus the category into which the serving node is classified) based on the change over time of the one or more parameters.

[0074] For example, in a case where a serving node and a served node communicate using directional beamforming communication, the serving node and the served node may communicate on an uplink using a first beam pair link (BPL), which includes an uplink receiving beam at the serving node and a corresponding uplink transmitting beam at the served node. Additionally, the serving node and the served node may communicate on a downlink using a second BPL, which includes a downlink transmitting beam at the serving node and a corresponding downlink receiving beam at the served node. Thus, in some aspects, one or more parameters may include one or more beam-related measurements, such as beam-specific RSRP, beam-specific RSRQ, beam-specific signal-to-interference-plus-noise ratio (SINR), and / or beam-specific RSSI, etc.

[0075] In some aspects, a wireless node may record or otherwise track beam-related measurements to determine whether the radio environment associated with the served node changes over time and / or the extent of such change, and thereby identify the category into which the served node is classified. For example, in some aspects, where the beam-related measurements are relatively stable over time, the served node may be classified as having low mobility relative to the serving node, or where the beam-related measurements change relatively rapidly over a given time period, the served node may be classified as having high mobility relative to the serving node. In another example, a served node having low mobility relative to the serving node may generally be expected to have a semi-static BPL configuration, or the BPL for a served node having low mobility relative to the serving node may change on a certain number of BPL candidates that is less than or equal to a threshold (e.g., because the angle between the served node and the serving node does not change over time or changes by a small amount). In contrast, a served node having high mobility relative to the serving node is more likely to experience faster changes in the radio environment (e.g., changes to the line-of-sight path from the served node to the serving node, changes to multipath propagation characteristics, etc.), and a served node in the high mobility category may be expected to have a dynamic BPL configuration or a BPL that changes on a larger number of BPL candidates. Accordingly, in some aspects, a wireless node may classify a served node into a specific mobility category (e.g., low mobility, high mobility, medium mobility, and / or stationary, etc.) based on the change over time of the BPL configuration used to serve the served node.

[0076] Additionally or alternatively, one or more parameters may include one or more uplink and / or downlink channel measurements. For example, in some aspects, the uplink and / or downlink channel measurements may include RSRP, RSRQ, SINR, RSSI, CQI, and / or other suitable measurements that are at least partially based on one or more omnidirectional uplink transmissions and / or downlink transmissions between the served node and the serving node. Thus, in some aspects, a wireless node may record or otherwise track the uplink and / or downlink channel measurements to determine whether the radio environment associated with the served node changes over time and / or the extent of such change, and thereby identify the category into which the served node is classified. For example, in a case where the uplink and / or downlink channel measurements are relatively stable over time, the served node may be classified as having low mobility relative to the serving node, or in a case where the uplink and / or downlink channel measurements change relatively rapidly over a given time period, the served node may be classified as having high mobility relative to the serving node. For example, the change in the uplink and / or downlink channel measurements over time may indicate whether the distance and / or angle between the serving node and the served node changes over time and / or the extent of such change, such that the wireless node may classify the served node into a specific mobility category based on the manner in which the uplink and / or downlink channel measurements change over time.

[0077] In another example, one or more parameters may include uplink reception timing, downlink reception timing, and / or other suitable parameters. For example, a change in the uplink and / or downlink reception timing over time may generally indicate whether the distance and / or angle between the serving node and the served node is changing over time and / or the extent of such change (e.g., the propagation delay in the uplink and / or downlink reception timing may decrease as the distance between the serving node and the served node decreases, or the propagation delay may increase as the distance between the serving node and the served node increases). Accordingly, in some aspects, the wireless node may classify the served node into a specific mobility category based on how the uplink reception timing and / or downlink reception timing of the communication between the serving node and the served node changes over time.

[0078] In another example, one or more parameters may include the location associated with the served node, which may be measured by the serving node, measured by another network node (e.g., the CU of the IAB donor), and / or measured and / or reported by the served node. For example, in some aspects, the location may include the latitude, longitude, and altitude (or x-y-z coordinates) of the served node and / or the serving node, which may be determined using Global Navigation Satellite System (GNSS) positioning technology, cellular positioning technology (e.g., using pseudolites, Observed Time Difference of Arrival (OTDOA), and / or positioning reference signals), inertial positioning technology, and / or other suitable technologies. Accordingly, the distance and / or angle between the serving node and the served node may be determined based on the difference between the location of the served node and the location of the serving node, and the change over time of the distance and / or angle between the serving node and the served node may generally indicate whether the served node is co-located with and moving together with the serving node (e.g., having low mobility relative to the serving node) or moving independently of the serving node (e.g., having high mobility relative to the serving node). Accordingly, in some aspects, a wireless node may classify the served node into a specific mobility category based on how the distance and / or angle between the serving node and the served node changes over time, where how the distance and / or angle between the serving node and the served node changes over time may be determined by tracking the change over time of the location of the serving node and / or the served node.

[0079] In another example, one or more parameters may include the duration for which the served node has been resident on the cell provided by the serving node. For example, in the case where the served node has been resident on the cell provided by the serving node for a long duration, it may be determined that the served node is co-located with and moving together with the serving node (e.g., having low mobility relative to the serving node), or in the case where the served node has been resident on the cell provided by the serving node for a short duration and / or in the case where the served node has been performing frequent handovers, it may be determined that the served node is moving independently of the serving node (e.g., having high mobility relative to the serving node). Accordingly, in some aspects, a wireless node may classify the served node into a specific mobility category based on the duration indicating how long the served node has been resident on the cell provided by the serving node.

[0080] In another example, one or more parameters may include RRM measurements that are obtained and / or reported at least in part based on signals communicated between the serving node and / or other nodes in the network. For example, the serving node may send signals to and / or receive signals from other serving nodes and / or other serving nodes, and the serving node may obtain RRM measurements associated with the signals sent to and / or received from other nodes (e.g., beam direction, RSRP measurement, RSSI measurement, and / or other suitable measurements). Accordingly, a change in the RRM measurement can generally indicate whether the serving node is moving towards and / or away from other nodes in the network and / or the extent of such movement, which can indicate the mobility of the serving node relative to the serving node. For example, in the case where the distance and / or angle between the serving node and another node is changing at the same rate as the distance and / or angle between the serving node and that other node, a change in the RRM measurement can indicate that the serving node and the serving node are co-located or moving together. In contrast, in the case where the distances and / or angles between the serving node, the serving node, and another node are changing at different rates, a change in the RRM measurement can indicate that the serving node and the serving node are moving independently. Accordingly, in some aspects, a wireless node may classify a serving node into a particular mobility category based on how RRM measurements obtained and / or reported by the serving node and / or other nodes in the network change over time.

[0081] As shown in Figure 5 and further illustrated by reference numeral 535, a wireless node may implement differentiated services for a serving node at least in part based on the relative mobility of the serving node with respect to the serving node. For example, in some aspects, a wireless node may send signaling to other nodes in the network to indicate the category into which the serving node is classified, and the signaling may further indicate a confidence level associated with the classification of the serving node. For example, as described above, one or more entities in a wireless network may access different permutations of one or more parameters indicating the mobility state of a serving node relative to a serving node. Accordingly, a wireless node may classify a serving node and may signal the classification to other entities in the wireless network such that the serving node may adopt an appropriate configuration to communicate with the serving node based on the mobility state of the serving node. In addition, a wireless node may receive signaling indicating the category into which one or more other nodes have classified the serving node, the signaling may similarly include a confidence level associated with the classification, and the wireless node may determine the category into which the serving node is classified at least in part based on the signaling received from one or more other nodes.

[0082] In some aspects, the wireless node that classifies the served node can be a serving node (e.g., a DU that communicates with the served node on an access link, a DU that communicates with the MT of a child IAB node on a backhaul link, and / or a CU of an IAB provider that controls and / or configures the entire IAB network). In this case, the wireless (serving) node can provide differentiated services by communicating with the served node to provide wireless services to the served node according to the mobility state of the served node. For example, in some aspects, the wireless (serving) node can prioritize wireless services for served nodes with low mobility relative to the wireless (serving) node, and include more pilots (e.g., demodulation reference signals) in the uplink and downlink communications for served nodes with high mobility relative to the wireless (serving) node to achieve faster (e.g., more frequent) beam management and ensure the performance of served nodes that experience faster changes in radio propagation conditions, etc.

[0083] As described above, provide Figure 5 as an example. Other examples may be different from the examples described with respect to Figure 5 what is described.

[0084] Figure 6 is a diagram illustrating an example process 600, such as performed by a wireless node, according to the present disclosure. Example process 600 is an example in which operations associated with classifying nodes based on mobility state are performed by a wireless node (e.g., base station 110, UE 120, base station 310, UE 320, IAB provider 405, IAB node 410, serving node 510, served nodes 515-1, 515-2, etc.).

[0085] As Figure 6 shown, in some aspects, process 600 can include identifying one or more parameters indicative of the mobility of the served node relative to the serving node (block 610). For example, as described above, the wireless node can identify (e.g., using antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, etc.) one or more parameters indicative of the mobility of the served node relative to the serving node.

[0086] As Figure 6As further shown in, in some aspects, process 600 may include classifying served nodes within a category among multiple categories based at least in part on one or more parameters, where the multiple categories include at least a first category for served nodes having low mobility relative to the serving node and a second category for served nodes having high mobility relative to the serving node (block 620). For example, as described above, a wireless node may classify served nodes within a category among multiple categories based at least in part on one or more parameters (e.g., using controller / processor 240, controller / processor 280, etc.). In some aspects, the multiple categories include at least a first category for served nodes having low mobility relative to the serving node and a second category for served nodes having high mobility relative to the serving node.

[0087] Process 600 may include additional aspects, such as any individual implementation or any combination of aspects described below and / or related to one or more other processes described elsewhere herein.

[0088] In a first aspect, one or more parameters include one or more measurements for managing one or more service beam pairs for a link to a served node.

[0089] In a second aspect, alone or in combination with the first aspect, one or more measurements indicate the rate at which one or more service beam pairs for a served node change over time, the number of beam pair candidates on which one or more service beam pairs for a served node change over time, or a combination thereof.

[0090] In a third aspect, alone or in combination with one or more of the first and second aspects, one or more parameters indicate a change over time in one or more uplink channel measurements, a change over time in one or more downlink channel measurements, or a combination thereof.

[0091] In a fourth aspect, alone or in combination with one or more of the first to third aspects, one or more parameters indicate a change over time in uplink reception timing, a change over time in downlink reception timing, or a combination thereof.

[0092] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, one or more parameters indicate a change over time in the position associated with a served node relative to the position associated with the serving node.

[0093] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, one or more parameters indicate the duration for which a served node has been resident on a serving node, the rate at which a served node performs handovers to move between different serving nodes, or a combination thereof.

[0094] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, one or more parameters include one or more RRM measurements that indicate the relative movement of the serving node with respect to one or more other nodes.

[0095] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the wireless node includes a serving node, another node, or a central unit associated with the serving node, and process 600 includes sending signaling indicating the category into which the serving node is classified to a distributed unit associated with the serving node.

[0096] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the signaling also indicates a confidence level associated with the classification of the serving node.

[0097] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, the wireless node includes a distributed unit associated with the serving node, and process 600 includes providing wireless services to the serving node at least in part based on the category into which the serving node is classified.

[0098] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, process 600 includes receiving signaling identifying the category into which the serving node is classified.

[0099] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the signaling also indicates a confidence level associated with the classification of the serving node.

[0100] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, process 600 includes sending signaling indicating the category into which the serving node is classified, where the signaling also indicates a confidence level associated with the classification of the serving node.

[0101] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the serving node includes a mobile serving node.

[0102] In a seventeenth aspect, alone or in combination with one or more of the first to fourteenth aspects, a first category of serving nodes having low mobility relative to the serving node includes serving nodes co-located with or moving together with the serving node, and a second category of serving nodes having high mobility relative to the serving node includes serving nodes not co-located with the serving node or moving independently of the serving node.

[0103] Although Figure 6Example blocks of process 6 are shown, but in some aspects process 600 may include Figure 6 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 600. Additionally or alternatively, two or more blocks of process 600 may be executed in parallel.

[0104] The following summarizes some aspects of the disclosure:

[0105] Aspect 1: A method of wireless communication performed by a wireless node, comprising: identifying one or more parameters indicating the mobility of a served node relative to a serving node; and classifying the served node into a category among a plurality of categories based at least in part on the one or more parameters, wherein the plurality of categories include at least a first category for served nodes having low mobility relative to the serving node and a second category for served nodes having high mobility relative to the serving node.

[0106] Aspect 2: The method according to aspect 1, wherein the one or more parameters include one or more measurements for managing one or more serving beam pair links for the served node.

[0107] Aspect 3: A method according to Aspect 2, wherein the one or more measurements indicate a rate at which the one or more service beam pair links for the served node change over time, a number of beam pair link candidates on which the one or more service beam pair links for the served node change over time, or a combination thereof.

[0108] Aspect 4: A method according to any of aspects 1-3, wherein the one or more parameters indicate changes in one or more uplink channel measurements over time, changes in one or more downlink channel measurements over time, or a combination thereof.

[0109] Aspect 5: The method according to any of aspects 1-4, wherein the one or more parameters indicate a change in uplink reception timing over time, a change in downlink reception timing over time, or a combination thereof.

[0110] Aspect 6: The method according to any of aspects 1-5, wherein the one or more parameters indicate a change in a location associated with the served node relative to a location associated with the serving node over time.

[0111] Aspect 7: A method according to any of Aspects 1-6, wherein the one or more parameters indicate a duration for which the served node has been resident on the serving node, a rate at which the served node performs switching to move between different serving nodes, or a combination thereof.

[0112] Aspect 8: The method according to any of aspects 1-7, wherein the one or more parameters include one or more RRM measurements indicating a relative movement of the served node with respect to one or more other nodes.

[0113] Aspect 9: The method according to any of aspects 1-8, wherein the wireless node includes the served node, another node, or a CU associated with the serving node, and wherein the method further comprises: sending signaling to a DU associated with the serving node indicating the class to which the served node is classified.

[0114] Aspect 10: The method according to aspect 9, wherein the signaling further indicates a confidence level associated with the classification of the served node.

[0115] Aspect 11: The method according to any of aspects 1-8, wherein the wireless node includes a DU associated with the serving node, and wherein the method further comprises: providing wireless services to the served node at least in part based on the class to which the served node is classified.

[0116] Aspect 12: The method according to aspect 11, further comprising: receiving signaling identifying the class to which the served node is classified.

[0117] Aspect 13: The method according to aspect 12, wherein the signaling further indicates a confidence level associated with the classification of the served node.

[0118] Aspect 14: The method according to aspect 11, further comprising: sending signaling indicating the class to which the served node is classified, wherein the signaling further indicates a confidence level associated with the classification of the served node.

[0119] Aspect 15: The method according to any of aspects 1-14, wherein the serving node includes a mobile serving node.

[0120] Aspect 16: The method according to any of aspects 1-15, wherein the first class for a served node having low mobility relative to the serving node includes a served node co-located with or moving together with the serving node, and wherein the second class for a served node having high mobility relative to the serving node includes a served node not co-located with or moving independently of the serving node.

[0121] Aspect 17: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform the method according to any of Aspects 1-16.

[0122] Aspect 18: A device for wireless communication, comprising: a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the method according to any of Aspects 1-16.

[0123] Aspect 19: A device for wireless communication, comprising at least one unit for performing the method according to any of Aspects 1-16.

[0124] Aspect 20: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to any of Aspects 1-16.

[0125] Aspect 21: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to any of Aspects 1-16.

[0126] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure, or may be obtained from the practice of these aspects.

[0127] As used herein, the term "component" is intended to be broadly construed as a combination of hardware and / or hardware and software. "Software" shall be broadly construed to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads being executed, processes, and / or functions, etc., whether referring to software, firmware, middleware, microcode, hardware description language, etc. As used herein, a processor is implemented as a combination of hardware and / or hardware and software. It will be apparent that the systems and / or methods described herein may be implemented in different forms of combinations of hardware and / or hardware and software. The actual specific control hardware or software code used to implement these systems and / or methods does not limit these aspects. Accordingly, the operations and behaviors of the systems and / or methods are described herein without reference to specific software code - it should be understood that the software and hardware can be designed to implement the systems and / or methods at least in part based on the description herein.

[0128] As used herein, depending on context, meeting a threshold may mean that a value is greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0129] Although specific combinations of features are recited in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the various aspects. Indeed, many of these features may be combined in ways not specifically recited in the claims and / or disclosed in the specification. Although each dependent claim listed below may directly depend only on one claim, the disclosure of the various aspects includes each dependent claim in combination with every other claim in the set of claims. As used herein, the phrase "at least one" in reference to a list of items means any combination of those items, including a single member. As an example, "at least one of a, b, or c" is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination having multiple of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c).

[0130] Unless explicitly stated otherwise, any element, act, or instruction used herein should not be construed as critical or essential. Further, 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." Further, as used herein, the article "the" is intended to include one or more items referenced in relation to the article "the" and may be used interchangeably with "the one or more." Further, 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 desired, the term "only one" or similar language is used. Further, as used herein, the terms "having," "comprising," "containing," etc. are intended to be open-ended terms. Further, unless otherwise explicitly stated, the phrase "based on" is intended to mean "at least partially based on." Further, as used herein, the term "or" when used in series is intended to be inclusive and may be used interchangeably with "and / or" unless otherwise explicitly stated (e.g., if used in combination with "either" or "only one of").

Claims

1. A method of wireless communication performed by a wireless integrated access and backhaul (IAB) node, comprising: identifying one or more parameters indicative of mobility of a served IAB node relative to a serving IAB node; and classifying the served IAB node into a class among a plurality of classes, at least partially based on the one or more parameters, wherein the plurality of classes includes at least a first class for a served IAB node having low mobility relative to the serving IAB node and a second class for a served IAB node having high mobility relative to the serving IAB node, wherein one of the one or more parameters includes a duration for which the served IAB node has been resident on the serving IAB node; and providing wireless services to the served IAB node, at least partially based on the class into which the served IAB node is classified.

2. The method according to claim 1, wherein, The one or more parameters include one or more measurements for managing one or more service beam pair links for the served IAB node.

3. The method according to claim 2, wherein, The one or more measurements indicate a rate at which the one or more service beam pair links for the served IAB node change over time, a number of beam pair link candidates on which the one or more service beam pair links for the served IAB node change over time, or a combination thereof.

4. The method according to claim 1, wherein, The one or more parameters indicate a change in one or more uplink channel measurements over time, a change in one or more downlink channel measurements over time, or a combination thereof.

5. The method according to claim 1, wherein, The one or more parameters indicate a change in uplink reception timing over time, a change in downlink reception timing over time, or a combination thereof.

6. The method according to claim 1, wherein The one or more parameters indicate a change in a location associated with the served IAB node over time relative to a location associated with the serving IAB node.

7. The method according to claim 1, wherein The one or more parameters indicate a rate at which the served IAB node performs handovers to move between different serving IAB nodes.

8. The method according to claim 1, wherein The one or more parameters include one or more radio resource management measurements indicative of relative movement of the served IAB node with respect to one or more other IAB nodes.

9. The method according to claim 1, wherein, The wireless IAB node includes the served IAB node, another IAB node, or a central unit associated with the serving IAB node, and wherein the method further includes: sending signaling indicating the class into which the served IAB node is classified to a distributed unit (DU) of an IAB provider node associated with the serving IAB node.

10. The method according to claim 9, wherein, The signaling further indicates a confidence level associated with the classification of the served IAB node.

11. The method according to claim 1, wherein, The served IAB node includes a mobile station termination (MT) of a child IAB node, and wherein the serving IAB node includes a distributed unit (DU) of an IAB provider node.

12. The method according to claim 1, further comprising: receiving signaling identifying the class into which the served IAB node is classified.

13. The method according to claim 12, wherein The signaling also indicates a confidence level associated with the classification of the served IAB node.

14. The method according to claim 1, further comprising: Transmitting signaling indicating the class to which the served IAB node is classified, wherein the signaling also indicates a confidence level associated with the classification of the served IAB node.

15. The method according to claim 1, wherein, The serving IAB node includes a mobile serving IAB node.

16. The method according to claim 1, wherein The first class of served IAB nodes having low mobility relative to the serving IAB node includes served IAB nodes co-located with or moving together with the serving IAB node, and wherein the second class of served IAB nodes having high mobility relative to the serving IAB node includes served IAB nodes not co-located with the serving IAB node or moving independently of the serving IAB node.

17. The method according to claim 1, wherein, Providing the wireless service further comprises: Prioritizing the provision of wireless service to the served IAB node at least in part based on the served IAB node being classified in the first class of served IAB nodes having low mobility relative to the serving IAB node.

18. The method according to claim 1, wherein, Providing the wireless service further comprises: Including a greater number of demodulation reference signals in the uplink communication and downlink communication to the served IAB node at least in part based on the served IAB node being classified in the second class of served IAB nodes having high mobility relative to the serving IAB node.

19. A wireless integrated access and backhaul (IAB) node for wireless communication, comprising: One or more memories; And One or more processors coupled to the one or more memories, the one or more processors being configured to: Identify one or more parameters indicating the mobility of a served IAB node relative to a serving IAB node; And Classify the served IAB node within a class among a plurality of classes at least in part based on the one or more parameters, wherein the plurality of classes includes at least a first class of served IAB nodes having low mobility relative to the serving IAB node and a second class of served IAB nodes having high mobility relative to the serving IAB node, wherein one of the one or more parameters includes the duration for which the served IAB node has been resident on the serving IAB node; and Provide wireless service to the served IAB node at least in part based on the class to which the served IAB node is classified.

20. The wireless IAB node according to claim 19, wherein, The one or more parameters include one or more measurements for managing one or more service beam pair links for the served IAB node.

21. The wireless IAB node according to claim 20, wherein, The one or more measurements indicate the rate at which the one or more service beam pair links for the served IAB node change over time, the number of beam pair link candidates on which the one or more service beam pair links for the served IAB node change over time, or a combination thereof.

22. The wireless IAB node according to claim 19, wherein, The one or more parameters indicate a change in one or more uplink channel measurements over time, a change in one or more downlink channel measurements over time, a change in uplink reception timing over time, a change in downlink reception timing over time, or a combination thereof.

23. The wireless IAB node according to claim 19, wherein, The one or more parameters indicate a change over time in the location associated with the served IAB node relative to the location associated with the serving IAB node.

24. The wireless IAB node according to claim 19, wherein The one or more parameters indicate the rate at which the served IAB node performs handovers to move between different serving IAB nodes.

25. The wireless IAB node according to claim 19, wherein, The one or more parameters include one or more radio resource management measurements indicating the relative movement of the served IAB node with respect to one or more other IAB nodes.

26. The wireless IAB node according to claim 19, wherein, The wireless IAB node includes the served IAB node, another IAB node, or a central unit associated with the serving IAB node, and wherein the one or more processors are further configured to: Send signaling indicating the class to which the served IAB node is classified to a distributed unit associated with the serving IAB node.

27. The wireless IAB node according to claim 19, wherein, The served IAB node includes a mobile - terminated (MT) of a child IAB node, and wherein the serving IAB node includes a distributed unit (DU) of an IAB donor node.

28. The wireless IAB node according to claim 19, wherein, The one or more processors are further configured to: Receive signaling identifying the class to which the served IAB node is classified.

29. The wireless IAB node according to claim 19, wherein, The one or more processors are further configured to: Send signaling indicating the class to which the served IAB node is classified, wherein the signaling further indicates a confidence level associated with the classification of the served IAB node.

30. The wireless IAB node according to claim 19, wherein, The first class for the served IAB node having the low mobility relative to the serving IAB node includes a served IAB node co - located with or moving together with the serving IAB node, and wherein the second class for the served IAB node having the high mobility relative to the serving IAB node includes a served IAB node not co - located with or moving independently of the serving IAB node.

31. A non - transitory computer - readable medium storing one or more instructions for wireless communication, the one or more instructions comprising: One or more instructions that, when executed by one or more processors of a wireless integrated access and backhaul (IAB) node, cause the one or more processors to perform the following operations: Identify one or more parameters indicating the mobility of a served IAB node relative to a serving IAB node; and Classify the served IAB node within a class among a plurality of classes, at least in part based on the one or more parameters, where the plurality of classes includes at least a first class for served IAB nodes having low mobility relative to the serving IAB node and a second class for served IAB nodes having high mobility relative to the serving IAB node, where one of the one or more parameters includes the duration that the served IAB node has been resident on the serving IAB node; and Provide wireless services to the served IAB node, at least in part based on the class into which the served IAB node is classified.

32. An apparatus for wireless communication, comprising: A unit for identifying one or more parameters indicative of the mobility of a served integrated access and backhaul (IAB) node relative to a serving IAB node; And A unit for classifying the served IAB node within a class among a plurality of classes, at least in part based on the one or more parameters, where the plurality of classes includes at least a first class for served IAB nodes having low mobility relative to the serving IAB node and a second class for served IAB nodes having high mobility relative to the serving IAB node, where one of the one or more parameters includes the duration that the served IAB node has been resident on the serving IAB node; and A unit for providing wireless services to the served IAB node, at least in part based on the class into which the served IAB node is classified.

Images