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WO2025118908A1 - Procédés de mesure inter-satellite et de transfert pour réseau non terrestre dans des communications sans fil - Google Patents

Procédés de mesure inter-satellite et de transfert pour réseau non terrestre dans des communications sans fil Download PDF

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Publication number
WO2025118908A1
WO2025118908A1 PCT/CN2024/130513 CN2024130513W WO2025118908A1 WO 2025118908 A1 WO2025118908 A1 WO 2025118908A1 CN 2024130513 W CN2024130513 W CN 2024130513W WO 2025118908 A1 WO2025118908 A1 WO 2025118908A1
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WIPO (PCT)
Prior art keywords
inter
satellite
handover
antenna
measurement
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English (en)
Inventor
Abdelkader Medles
Gilles Charbit
Hsuan-Li Lin
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MediaTek Singapore Pte Ltd
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MediaTek Singapore Pte Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
    • H04B7/18541—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection for handover of resources

Definitions

  • the present disclosure is generally related to wireless communications and, more particularly, to inter-satellite measurement and handover for non-terrestrial network (NTN) with respect to user equipment (UE) and network node in wireless communications.
  • NTN non-terrestrial network
  • UE user equipment
  • network node in wireless communications.
  • NTN is introduced as a terminal-satellite direct communication technology based on the new radio (NR) interface.
  • NR new radio
  • NTN may provide ubiquitous coverage without being restricted by terrain and landform.
  • IoT Internet-of-Things
  • NR New Radio
  • IoT NTN focuses on satellite IoT services that support low-complexity enhanced machine-type communication (eMTC) and narrowband Internet-of-things (NB-IoT) UEs.
  • eMTC enhanced machine-type communication
  • NB-IoT narrowband Internet-of-things
  • NR NTN uses the 5G NR framework to enable direct connection between satellites and smartphones to provide voice and data services.
  • VSAT very small aperture terminal
  • a UE may need to perform inter-satellite measurement (e.g., measurement on neighbor satellite (s) while being connected to the source satellite) and/or inter-satellite handover (e.g., from a source satellite to a target satellite) , so as to ensure normal transmission/reception during a long connection time and to avoid radio link failure.
  • inter-satellite measurement e.g., measurement on neighbor satellite (s) while being connected to the source satellite
  • inter-satellite handover e.g., from a source satellite to a target satellite
  • the inter-satellite measurement/handover may or may not require a serving cell processing interruption, depending on whether the UE needs to re-steer its antenna away from the serving satellite.
  • 3GPP Release 18 the detailed operations of inter-satellite measurement/handover have not been fully discussed yet and some issues need to be solved. For example, one of the issues relates to network not being able to properly configure the inter-satellite measurement/handover without the knowledge of whether the serving cell processing interruption is required.
  • One objective of the present disclosure is proposing schemes, concepts, designs, systems, methods and apparatus pertaining to inter-satellite measurement and handover for NTN in wireless communications. It is believed that the above-described issues would be avoided or otherwise alleviated by implementing one or more of the proposed schemes described herein.
  • a method may involve an apparatus reporting UE capability information to a network node of a wireless network, wherein the network node is associated with a first satellite and the UE capability information indicates whether an interruption for antenna re-steering is required for an inter-satellite measurement or handover.
  • the method may also involve the apparatus receiving a configuration of the inter-satellite measurement or handover from the network node, wherein the configuration is based on the UE capability information.
  • the method may further involve the apparatus performing the inter-satellite measurement or handover according to the configuration.
  • a method may involve a network node receiving UE capability information from an apparatus, wherein the network node is associated with a first satellite and the UE capability information indicates whether an interruption for antenna re-steering is required for an inter-satellite measurement or handover.
  • the method may also involve the network node transmitting a configuration of the inter-satellite measurement or handover to the apparatus, wherein the configuration is based on the UE capability information.
  • LTE Long-Term Evolution
  • LTE-Advanced Long-Term Evolution-Advanced
  • LTE-Advanced Pro 5th Generation
  • NR New Radio
  • IoT Internet-of-Things
  • NB-IoT Narrow Band Internet of Things
  • IIoT Industrial Internet of Things
  • B5G beyond 5G
  • 6G 6th Generation
  • the proposed concepts, schemes and any variation (s) /derivative (s) thereof may be implemented in, for and by other types of radio access technologies, networks and network topologies.
  • the scope of the present disclosure is not limited to the examples described herein.
  • FIG. 1 is a diagram depicting an example scenario of UE antenna re-steering in accordance with an implementation of the present disclosure.
  • FIG. 2 is a diagram depicting an example scenario of a communication environment in which various solutions and schemes in accordance with the present disclosure may be implemented.
  • FIG. 3 is a diagram depicting an example scenario of a UE preparing for an inter-satellite measurement/handover in accordance with an implementation of the present disclosure.
  • FIG. 4 is a diagram depicting an example scenario of different UE beam configurations in accordance with an implementation of the present disclosure.
  • FIG. 5 is a block diagram of an example communication system in accordance with an implementation of the present disclosure.
  • FIG. 6 is a flowchart of an example process in accordance with an implementation of the present disclosure.
  • FIG. 7 is a flowchart of another example process in accordance with an implementation of the present disclosure.
  • Implementations in accordance with the present disclosure relate to various techniques, methods, schemes and/or solutions pertaining to inter-satellite measurement and handover for NTN in wireless communications.
  • a number of possible solutions may be implemented separately or jointly. That is, although these possible solutions may be described below separately, two or more of these possible solutions may be implemented in one combination or another.
  • NTN refers to a network that uses radio frequency (RF) and information processing resources carried on high, medium and low orbit satellites or other high-altitude communication platforms to provide communication services for UEs.
  • RF radio frequency
  • the satellite According to the load capacity on the satellite, there are two typical scenarios, namely: transparent payload and regenerative payload.
  • transparent payload mode the satellite does not process the signal and waveform in the communication service but, rather, only functions as an RF amplifier to forward data.
  • regenerative payload mode the satellite, other than RF amplification, also has the processing capabilities of modulation/demodulation, coding/decoding, switching, routing and so on. It is noteworthy that the present disclosure is motivated by, but not limited to, an NTN scenario.
  • a UE may or may not need to re-steer the antenna away from the serving satellite depending on the UE’s capability. If the UE needs to re-steer its antenna away from the serving satellite, then a serving cell processing interruption (e.g., in seconds or even tens of seconds) will be induced to cause service delay.
  • the UE may be a VSAT UE using a mechanical steering antenna, and the rotor required to move the antenna may have a speed of 2-10 degrees per second.
  • FIG. 1 illustrates an example scenario 100 of UE antenna re-steering in accordance with an implementation of the present disclosure.
  • Scenario 100 involves a VSAT UE in wireless communication with satellite 1 (denoted as SAT#1) initially. Then, with the satellites moving as time advances, the area where the VSAT UE is located will be no longer served by satellite 1 and be served by satellite 2 (denoted as SAT#2) instead. To ensure normal transmission/reception and to avoid radio link failure, the VSAT UE may need to perform an inter-satellite handover to switch the service link from satellite 1 to satellite 2. Alternatively, the VSAT UE may need to re-steer the antenna away from the serving satellite (e.g., satellite 1) and towards the neighbor satellite (e.g., satellite 2) to perform an inter-satellite measurement.
  • the serving satellite e.g., satellite 1
  • the neighbor satellite e.g., satellite 2
  • inter-satellite measurement/handover may require a serving cell processing interruption due to the re-steering delay. It should be noted that, in 3GPP Release 18, the detailed operations of inter-satellite measurement/handover have not been fully discussed yet and some issues remain unsolved, including the issue of the network unable to properly configure the inter-satellite measurement/handover without the knowledge of whether the serving cell processing interruption is required.
  • FIG. 2 illustrates an example scenario 200 of a communication environment in which various solutions and schemes in accordance with the present disclosure may be implemented.
  • Scenario 200 involves a UE 210 (e.g., a VSAT UE) in wireless communication with a network 220 (e.g., a wireless network including an NTN and a TN) via at least one terrestrial network node 221 (e.g., a base station (BS) such as an evolved Node-B (eNB) , a next generation Node-B (gNB) , or a transmission/reception point (TRP) ) and one or more non-terrestrial network nodes 222-223 (e.g., satellite (s) ) .
  • the terrestrial network node 221 and each of the non-terrestrial network nodes 222-223 may form an NTN cell for wireless communication with the UE 210.
  • the terrestrial network node 221 and the non-terrestrial network node 222/223 may communicate through an NTN or satellite gateway (not shown) .
  • the UE 210, the terrestrial network node 221, and the non-terrestrial network nodes 222-223 may implement various schemes pertaining to inter-satellite measurement and handover for NTN in wireless communications in accordance with the present disclosure, as described below. It is noteworthy that, while the various proposed schemes may be individually or separately described below, in actual implementations some or all of the proposed schemes may be utilized or otherwise implemented jointly. Of course, each of the proposed schemes may be utilized or otherwise implemented individually or separately.
  • a UE may report its capability information indicating whether an interruption for antenna re-steering is required for an inter-satellite measurement/handover to the network node associated with the serving/source satellite. Then, the UE may receive a configuration of the inter-satellite measurement/handover from the network node. Specifically, the configuration is based on the UE capability information. For instance, if the UE capability information indicates that an interruption for antenna re-steering is required for the inter-satellite measurement/handover, the network node may allocate, in the configuration, an interruption time for the measurement of a neighbor satellite or for the handover to a target satellite. Accordingly, the UE may perform the inter-satellite measurement/handover according to the configuration that is suited to the UE’s capability reflecting whether an interruption for antenna re-steering is required for inter-satellite measurement/handover.
  • FIG. 3 illustrates an example scenario 300 of a UE preparing for an inter-satellite measurement/handover in accordance with an implementation of the present disclosure.
  • the UE e.g., VSAT UE
  • the UE may receive a UE Capability Enquiry message from the serving/source satellite (denoted as SAT#1) .
  • the UE may transmit a UE Capability Information message including an indication of whether an interruption for antenna re-steering is required for inter-satellite measurement/handover to the serving/source satellite.
  • the UE may receive a measurement/handover configuration (e.g., in an RRC Reconfiguration message) from the serving/source satellite.
  • a measurement/handover configuration e.g., in an RRC Reconfiguration message
  • the measurement/handover configuration may include the information of the neighbor/target satellite (s) , and an interruption time for antenna re-steering from the serving/source satellite.
  • the UE may re-steer the (VSAT) antenna towards the neighbor/target satellite (denoted as SAT#2) .
  • the UE may perform downlink (DL) synchronization with the neighbor/target satellite once the antenna is re-steered to point to the target satellite.
  • the interruption time is configured with a length that is enough for the UE to complete the preparations (i.e., antenna re-steering and target satellite synchronization) for the inter-satellite measurement/handover.
  • the UE may perform the inter-satellite measurement/handover according to the configuration. It is noteworthy that the interruption time is configured with a length that is enough for the UE to complete the preparations (i.e., antenna re-steering and target satellite synchronization) for the inter-satellite measurement/handover.
  • a UE may indicate, in the UE capability information, the need or no need of an interruption for measurement/handover associated with certain satellite (s) , based on the directivity of UE beam. For instance, the wider the UE beam (e.g., less number of antennas, or smaller antenna aperture) , the more satellites can be potentially viewed by the UE for measurement/handover without the need of an interruption for antenna re-steering.
  • the UE capability information may include an indication that the interruption for antenna re-steering is required for inter-satellite measurement/handover associated with certain satellite (s) , and/or an antenna re-steering duration/delay for the certain satellite (s) with which the interruption for antenna re-steering is required for inter-satellite measurement/handover.
  • the UE capability information may include an indication that the interruption for antenna re-steering is not required for inter-satellite measurement/handover associated with certain satellite (s) , and/or a number of the certain satellite (s) with which the interruption for antenna re-steering is not required for inter-satellite measurement/handover.
  • the UE may indicate beam width information in the UE capability information, such that the network node (e.g., gNB and/or satellite) may determine which satellite (s) the UE can perform measurement/handover without the need of an interruption for antenna re-steering.
  • the beam width information may include a beam width (e.g., 3dB) in degrees or a beam width angle in general, or include the number of (Rx and/or Tx) antennas or the antenna array configuration, or include the antenna aperture and selectivity (e.g., for parabolic antenna) .
  • FIG. 4 illustrates an example scenario 400 of different UE beam configurations in accordance with an implementation of the present disclosure. Part A of FIG.
  • part (B) of FIG. 4 depicts a UE beam configuration with a narrower beam width to cover a single satellite (e.g., the serving satellite) at a time, while part (B) of FIG. 4 depicts another UE beam configuration with a wider beam width to cover two satellites (e.g., the serving satellite and a neighbor satellite) at a time.
  • either UE or the network node may compensate the measurement result for the path loss caused by beam direction mismatch. For instance, the UE may first determine the path loss between the UE and a neighbor satellite, and then compensate the measurement result of the neighbor satellite by adding a gain to the measured reference signal received power (RSRP) or signal-to-noise ratio (SNR) based on the path loss. Alternatively, the network node may do the compensation using, e.g., a fixed formula with parameters based on the beam width information reported by the UE.
  • RSRP measured reference signal received power
  • SNR signal-to-noise ratio
  • a UE may indicate, in the UE capability information, the need or no need of an interruption for measurement/handover associated with certain satellite (s) , based on its support of multiple simultaneous beam.
  • the UE capability information may include an indication that the UE supports simultaneously operating with multiple beams associated with multiple satellites, and/or the number of the multiple beams, where the multiple beams may be applicable to simultaneous reception (only) , simultaneous reception and measurement (only) , simultaneous transmission (only) , or simultaneous transmission, reception, and measurement.
  • a UE supporting simultaneous reception and measurement does not require an interruption for antenna re-steering for measuring neighboring satellites.
  • a UE supporting simultaneous reception may support dual connectivity to multiple satellites simultaneously, and if this UE does not support simultaneous transmission, then the transmissions to the multiple satellites may be interlaced/multiplexed in time.
  • FIG. 5 illustrates an example communication system 500 having an example communication apparatus 510 and an example network apparatus 520 in accordance with an implementation of the present disclosure.
  • Each of communication apparatus 510 and network apparatus 520 may perform various functions to implement schemes, techniques, processes and methods described herein pertaining to inter-satellite measurement and handover for NTN in wireless communications, including scenarios/schemes described above as well as processes 600 and 700 described below.
  • Communication apparatus 510 may be a part of an electronic apparatus, which may be a VSAT UE such as a wireless communication apparatus or a computing apparatus, which may be mounted on a ship or vehicle, or installed on the roof a building (e.g., home or office) , to provide internet access through satellite communications.
  • communication apparatus 510 may be implemented in the form of one or more integrated-circuit (IC) chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, one or more reduced-instruction set computing (RISC) processors, or one or more complex-instruction-set-computing (CISC) processors.
  • IC integrated-circuit
  • RISC reduced-instruction set computing
  • CISC complex-instruction-set-computing
  • Communication apparatus 510 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and/or user interface device) , and, thus, such component (s) of communication apparatus 510 are neither shown in FIG. 5 nor described below in the interest of simplicity and brevity.
  • components not pertinent to the proposed scheme of the present disclosure e.g., internal power supply, display device and/or user interface device
  • such component (s) of communication apparatus 510 are neither shown in FIG. 5 nor described below in the interest of simplicity and brevity.
  • Network apparatus 520 may be a part of an electronic apparatus, which may be a network node such as a satellite, a BS, a small cell, a router or a gateway of an NTN.
  • network apparatus 520 may be implemented in a satellite and/or an eNB/gNB/TRP in a 4G/5G, NR, IoT, NB-IoT or IIoT network.
  • network apparatus 520 may be implemented in the form of one or more IC chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, or one or more RISC or CISC processors.
  • Network apparatus 520 may include at least some of those components shown in FIG.
  • Network apparatus 520 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and/or user interface device) , and, thus, such component (s) of network apparatus 520 are neither shown in FIG. 5 nor described below in the interest of simplicity and brevity.
  • components not pertinent to the proposed scheme of the present disclosure e.g., internal power supply, display device and/or user interface device
  • each of processor 512 and processor 522 may be implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC processors. That is, even though a singular term “aprocessor” is used herein to refer to processor 512 and processor 522, each of processor 512 and processor 522 may include multiple processors in some implementations and a single processor in other implementations in accordance with the present disclosure.
  • each of processor 512 and processor 522 may be implemented in the form of hardware (and, optionally, firmware) with electronic components including, for example and without limitation, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors and/or one or more varactors that are configured and arranged to achieve specific purposes in accordance with the present disclosure.
  • each of processor 512 and processor 522 is a special-purpose machine specifically designed, arranged and configured to perform specific tasks, including inter-satellite measurement and handover for NTN, in a device (e.g., as represented by communication apparatus 510) and a network node (e.g., as represented by network apparatus 520) in accordance with various implementations of the present disclosure.
  • communication apparatus 510 may also include a transceiver 516 coupled to processor 512 and capable of wirelessly transmitting and receiving data.
  • transceiver 516 may be capable of wirelessly communicating with different types of UEs and/or wireless networks of different radio access technologies (RATs) .
  • RATs radio access technologies
  • transceiver 516 may be equipped with a plurality of antenna ports (not shown) such as, for example, four antenna ports. That is, transceiver 516 may be equipped with multiple transmit antennas and multiple receive antennas for multiple-input multiple-output (MIMO) wireless communications.
  • MIMO multiple-input multiple-output
  • transceiver 516 may be equipped with a rotor if mechanical steering antenna is used.
  • transceiver 516 may be equipped with phase antenna (s) if electronic steering antenna is used.
  • network apparatus 520 may also include a transceiver 526 coupled to processor 522.
  • Transceiver 526 may include a transceiver capable of wirelessly transmitting and receiving data.
  • transceiver 526 may be capable of wirelessly communicating with different types of UEs of different RATs.
  • transceiver 526 may be equipped with a plurality of antenna ports (not shown) such as, for example, four antenna ports. That is, transceiver 526 may be equipped with multiple transmit antennas and multiple receive antennas for MIMO wireless communications.
  • communication apparatus 510 may further include a memory 514 coupled to processor 512 and capable of being accessed by processor 512 and storing data therein.
  • network apparatus 520 may further include a memory 524 coupled to processor 522 and capable of being accessed by processor 522 and storing data therein.
  • RAM random-access memory
  • DRAM dynamic RAM
  • SRAM static RAM
  • T-RAM thyristor RAM
  • Z-RAM zero-capacitor RAM
  • each of memory 514 and memory 524 may include a type of read-only memory (ROM) such as mask ROM, programmable ROM (PROM) , erasable programmable ROM (EPROM) and/or electrically erasable programmable ROM (EEPROM) .
  • ROM read-only memory
  • PROM programmable ROM
  • EPROM erasable programmable ROM
  • EEPROM electrically erasable programmable ROM
  • each of memory 514 and memory 524 may include a type of non-volatile random-access memory (NVRAM) such as flash memory, solid-state memory, ferroelectric RAM (FeRAM) , magnetoresistive RAM (MRAM) and/or phase-change memory.
  • NVRAM non-volatile random-access memory
  • Each of communication apparatus 510 and network apparatus 520 may be a communication entity capable of communicating with each other using various proposed schemes in accordance with the present disclosure.
  • a description of capabilities of communication apparatus 510, as a UE, and network apparatus 520, as a network node (e.g., satellite) is provided below with processes 600 and 700.
  • FIG. 6 illustrates an example process 600 in accordance with an implementation of the present disclosure.
  • Process 600 may be an example implementation of above scenarios/schemes, whether partially or completely, with respect to inter-satellite measurement and handover for NTN in wireless communications.
  • Process 600 may represent an aspect of implementation of features of communication apparatus 510.
  • Process 600 may include one or more operations, actions, or functions as illustrated by one or more of blocks 610 to 630. Although illustrated as discrete blocks, various blocks of process 600 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 600 may be executed in the order shown in FIG. 6 or, alternatively, in a different order.
  • Process 600 may be implemented by or in communication apparatus 510 or any suitable UE. Solely for illustrative purposes and without limitation, process 600 is described below in the context of communication apparatus 510 as a UE.
  • Process 600 may begin at block 610.
  • process 600 may involve processor 512 of communication apparatus 510 reporting, via transceiver 516, UE capability information to a network node (e.g., network apparatus 520) of a wireless network (e.g., an NTN) , wherein the network node is associated with a first satellite and the UE capability information indicates whether an interruption for antenna re-steering is required for an inter-satellite measurement or handover.
  • a network node e.g., network apparatus 520
  • a wireless network e.g., an NTN
  • Process 600 may proceed from 610 to 620.
  • process 600 may involve processor 512 receiving, via transceiver 516, a configuration of the inter-satellite measurement or handover from the network node, wherein the configuration is based on the UE capability information.
  • Process 600 may proceed from 620 to 630.
  • process 600 may involve processor 512 performing, via transceiver 516, the inter-satellite measurement or handover according to the configuration.
  • the UE capability information may include at least one of the following: an indication that the interruption for antenna re-steering is required for the inter-satellite measurement or handover associated with one or more second satellites; and an antenna re-steering duration for the one or more second satellites with which the interruption for antenna re-steering is required for the inter-satellite measurement or handover.
  • the UE capability information may include at least one of the following: an indication that the interruption for antenna re-steering is not required for the inter-satellite measurement or handover associated with the one or more second satellites; and a number of the one or more second satellites with which the interruption for antenna re-steering is not required for the inter-satellite measurement or handover.
  • the UE capability information may include beam width information.
  • the beam width information may include at least one of the following: (i) a beam width in degrees; (ii) a beam width angle; (iii) a number of antennas; (iv) an antenna array configuration; and (v) an antenna aperture and selectivity.
  • the UE capability information may include at least one of the following: an indication that communication apparatus 510 supports simultaneously operating with multiple beams associated with multiple satellites; and a number of the multiple beams.
  • the multiple beams associated with the multiple satellites may be applicable to one of the following: (i) simultaneous reception; (ii) simultaneous reception and measurement; (iii) simultaneous transmission; and (iv) simultaneous transmission, reception, and measurement.
  • the UE capability information may indicate that the interruption for antenna re-steering is not required for the inter-satellite measurement or handover in an event that the multiple beams associated with the multiple satellites are applicable to simultaneous reception and measurement.
  • communication apparatus 510 may support dual connectivity to the multiple satellites simultaneously in an event that the multiple beams associated with the multiple satellites are applicable to simultaneous reception.
  • FIG. 7 illustrates an example process 700 in accordance with another implementation of the present disclosure.
  • Process 700 may be an example implementation of above scenarios/schemes, whether partially or completely, with respect to inter-satellite measurement and handover for NTN in wireless communications.
  • Process 700 may represent an aspect of implementation of features of network apparatus 520.
  • Process 700 may include one or more operations, actions, or functions as illustrated by one or more of blocks 710 and 720. Although illustrated as discrete blocks, various blocks of process 700 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 700 may be executed in the order shown in FIG. 7 or, alternatively, in a different order.
  • Process 700 may be implemented by or in network apparatus 520 as well as any variations thereof. Solely for illustrative purposes and without limitation, process 700 is described below in the context of network apparatus 520 as a network node. Process 700 may begin at block 710.
  • process 700 may involve processor 522 of network apparatus 520 receiving, via transceiver 526, UE capability information from an apparatus (e.g., communication apparatus 510) , wherein network apparatus 520 is associated with a first satellite and the UE capability information indicates whether an interruption for antenna re-steering is required for an inter-satellite measurement or handover.
  • Process 700 may proceed from block 710 to block 720.
  • process 700 may involve processor 522 transmitting, via transceiver 526, a configuration of the inter-satellite measurement or handover to the apparatus, wherein the configuration is based on the UE capability information.
  • the UE capability information may include at least one of the following: an indication that the interruption for antenna re-steering is required for the inter-satellite measurement or handover associated with one or more second satellites; and an antenna re-steering duration for the one or more second satellites with which the interruption for antenna re-steering is required for the inter-satellite measurement or handover.
  • the UE capability information may include at least one of the following: an indication that the interruption for antenna re-steering is not required for the inter-satellite measurement or handover associated with the one or more second satellites; and a number of the one or more second satellites with which the interruption for antenna re-steering is not required for the inter-satellite measurement or handover.
  • the UE capability information may include beam width information.
  • the beam width information may include at least one of the following: (i) a beam width in degrees; (ii) a beam width angle; (iii) a number of antennas; (iv) an antenna array configuration; and (v) an antenna aperture and selectivity.
  • process 700 may further involve processor 522 compensating a measurement result of the inter-satellite measurement based on the beam width information.
  • the UE capability information may include at least one of the following: an indication that communication apparatus 510 supports simultaneously operating with multiple beams associated with multiple satellites; and a number of the multiple beams.
  • the multiple beams associated with the multiple satellites may be applicable to one of the following: (i) simultaneous reception; (ii) simultaneous reception and measurement; (iii) simultaneous transmission; and (iv) simultaneous transmission, reception, and measurement.
  • the UE capability information may indicate that the interruption for antenna re-steering is not required for the inter-satellite measurement or handover in an event that the multiple beams associated with the multiple satellites are applicable to simultaneous reception and measurement.
  • process 700 may further involve processor 522 determining that the apparatus supports dual connectivity to the multiple satellites simultaneously in an event that the multiple beams associated with the multiple satellites are applicable to simultaneous reception.
  • any two components so associated can also be viewed as being “operably connected” , or “operably coupled” , to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being “operably couplable” , to each other to achieve the desired functionality.
  • operably couplable include but are not limited to physically mateable and/or physically interacting components and/or wirelessly interactable and/or wirelessly interacting components and/or logically interacting and/or logically interactable components.

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Abstract

L'invention concerne diverses solutions de mesure inter-satellite et de transfert pour un réseau non terrestre (NTN) dans des communications sans fil. Un appareil peut rapporter des informations de capacité d'équipement utilisateur (UE) à un nœud de réseau d'un réseau sans fil. Le nœud de réseau est associé à un premier satellite et les informations de capacité d'UE indiquent si l'interruption de la redirection d'une antenne est requise pour une mesure inter-satellite ou un transfert. Ensuite, l'appareil peut recevoir une configuration de la mesure inter-satellite ou du transfert en provenance du nœud de réseau. Plus précisément, la configuration est basée sur les informations de capacité d'UE. L'appareil peut en outre effectuer la mesure inter-satellite ou le transfert selon la configuration.
PCT/CN2024/130513 2023-12-04 2024-11-07 Procédés de mesure inter-satellite et de transfert pour réseau non terrestre dans des communications sans fil Pending WO2025118908A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021158315A1 (fr) * 2020-02-07 2021-08-12 Qualcomm Incorporated Mécanisme de transfert pour système de réseau non terrestre (ntn) dans une technologie new radio (nr) 5g
WO2023129484A1 (fr) * 2021-12-29 2023-07-06 Hughes Network Systems, Llc Systèmes et procédés pour réduire au minimum le temps d'interruption pour un transfert
CN116709402A (zh) * 2022-03-03 2023-09-05 联发科技股份有限公司 用于移动通信的方法和装置
US20230284059A1 (en) * 2020-07-13 2023-09-07 Beijing Xiaomi Mobile Software Co., Ltd. Measurement feedback method and apparatus, network device, terminal, and storage medium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021158315A1 (fr) * 2020-02-07 2021-08-12 Qualcomm Incorporated Mécanisme de transfert pour système de réseau non terrestre (ntn) dans une technologie new radio (nr) 5g
US20230284059A1 (en) * 2020-07-13 2023-09-07 Beijing Xiaomi Mobile Software Co., Ltd. Measurement feedback method and apparatus, network device, terminal, and storage medium
WO2023129484A1 (fr) * 2021-12-29 2023-07-06 Hughes Network Systems, Llc Systèmes et procédés pour réduire au minimum le temps d'interruption pour un transfert
CN116709402A (zh) * 2022-03-03 2023-09-05 联发科技股份有限公司 用于移动通信的方法和装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
INTERDIGITAL: "Conditional measurement configuration for LEO NTN", 3GPP DRAFT; R2-1915770, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Reno, USA; 20191118 - 20191122, 7 November 2019 (2019-11-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051816081 *

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