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WO2025050865A1 - Procédés et appareil d'extension de transmission de liaison montante et de configuration d'intervalle de mesure dans un fonctionnement de système mondial de navigation par satellite - Google Patents

Procédés et appareil d'extension de transmission de liaison montante et de configuration d'intervalle de mesure dans un fonctionnement de système mondial de navigation par satellite Download PDF

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Publication number
WO2025050865A1
WO2025050865A1 PCT/CN2024/107211 CN2024107211W WO2025050865A1 WO 2025050865 A1 WO2025050865 A1 WO 2025050865A1 CN 2024107211 W CN2024107211 W CN 2024107211W WO 2025050865 A1 WO2025050865 A1 WO 2025050865A1
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Prior art keywords
gnss
duration
extension
processor
transmission
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English (en)
Inventor
Wen Tang
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MediaTek Singapore Pte Ltd
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MediaTek Singapore Pte Ltd
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0018—Transmission from mobile station to base station
    • G01S5/0027—Transmission from mobile station to base station of actual mobile position, i.e. position determined on mobile
    • 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
    • H04B7/18513—Transmission in a satellite or space-based system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Definitions

  • NTN non-terrestrial network
  • 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.
  • the UE may need a valid GNSS position fix for time and frequency synchronization.
  • RRC radio resource control
  • RRC_CONNECTED mode radio resource control
  • RRC idle state also called RRC_IDLE mode
  • 3GPP Release 18 it is agreed that depending on UE mobility, the UE in RRC connected state may re-acquire a new GNSS position fix in order to accommodate the accumulated time and frequency errors to reduce the possible radio link failure.
  • details of GNSS operation have not been fully discussed and some issues need to be solved. For example, one of the issues relate to how to enhance overall efficiency in the case that the original GNSS validity duration expires without a GNSS re-acquisition. Furthermore, another issue relates to when to start the aperiodic GNSS measurement gap triggered by network.
  • One objective of the present disclosure is proposing schemes, concepts, designs, systems, methods and apparatus pertaining to UL transmission extension and measurement gap configuration in GNSS operation. It is believed that the above-described issue would be avoided or otherwise alleviated by implementing one or more of the proposed schemes described herein.
  • a method may involve an apparatus connecting to a network node of a wireless network to operate in a connected state with a GNSS validity duration.
  • the method may also involve the apparatus receiving a configuration of an extension duration from the network node.
  • the method may further involve the apparatus determining that an UL transmission is allowed in the extension duration subsequent to an expiry of the GNSS validity duration.
  • an apparatus may comprise a transceiver which, during operation, wirelessly communicates with a network node of a wireless network.
  • the apparatus may also comprise a processor communicatively coupled to the transceiver.
  • the processor may perform operations comprising connecting, via the transceiver, to the network node of the wireless network to operate in a connected state with a GNSS validity duration.
  • the processor may also perform operations comprising receiving, via the transceiver, a configuration of an extension duration from the network node.
  • the processor may further perform operations comprising determining that an UL transmission is allowed in the extension duration subsequent to an expiry of the GNSS validity duration.
  • a method may involve an apparatus receiving a medium access control (MAC) control element (CE) from a network node of a wireless network, wherein the MAC CE indicates that a GNSS measurement gap is triggered.
  • the method may also involve the apparatus determining that the GNSS measurement gap starts at a time equal to a value plus an end of a subframe or slot where a hybrid automatic repeat request (HARQ) feedback for the MAC CE is transmitted to the network node.
  • the method may further involve the apparatus performing a GNSS measurement based on the GNSS measurement gap.
  • MAC medium access control
  • CE medium access control element
  • 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 a communication environment in which various solutions and schemes in accordance with the present disclosure may be implemented.
  • FIG. 2 is a diagram depicting an example scenario of component values of Y based on values of the time alignment timer in accordance with an implementation of the present disclosure.
  • FIG. 3 is a diagram depicting an example scenario of component values of Y based on values of the time alignment timer in accordance with another implementation of the present disclosure.
  • FIG. 4 is a diagram depicting an example scenario of component values of Y based on values of the GNSS validity duration in accordance with an implementation of the present disclosure.
  • FIG. 5 is a diagram depicting an example scenario of component values of Y based on values of the GNSS validity duration in accordance with another implementation of the present disclosure.
  • FIG. 6 is a diagram depicting an example scenario of the format of a GNSS measurement trigger MAC CE in accordance with an implementation of the present disclosure.
  • FIG. 7 is a diagram depicting an example scenario of component values of X2 as a configured parameter in accordance with another implementation of the present disclosure.
  • FIG. 8 is a block diagram of an example communication system in accordance with an implementation of the present disclosure.
  • FIG. 9 is a flowchart of an example process in accordance with an implementation of the present disclosure.
  • FIG. 10 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 UL transmission extension and measurement gap configuration in GNSS operation.
  • 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.
  • NTN systems e.g., IoT NTN systems
  • the UE may need to perform pre-compensation of time delay and frequency offset based on the UE’s GNSS position and ephemeris related parameters.
  • a GNSS position fix may be re-acquired in long connection time.
  • UL transmission may be allowed in an extension duration X after the original GNSS validity duration expires without a GNSS re-acquisition.
  • the present disclosure is motivated by, but not limited to, an IoT NTN scenario, and accordingly proposes a number of schemes pertaining to UL transmission extension and measurement gap configuration in GNSS operation.
  • procedures for configuring the extension duration X and the GNSS measurement gap in the connected state are proposed to ensure normal operation in NTN systems.
  • the value of X is equal to remaining value of the timeAlignmentTimer. Otherwise, if the timeAlignmentTimer is configured to be infinity, the value of X is equal to Y.
  • the start time of the gap may be at p+X2, where p is the end of HARQ feedback transmission subframe/slot when HARQ feedback for the MAC CE is enabled, and X2 may be a predefined or configured value.
  • FIG. 1 illustrates an example scenario 100 of a communication environment in which various solutions and schemes in accordance with the present disclosure may be implemented.
  • Scenario 100 involves a UE 110 in wireless communication with a network 120 (e.g., a wireless network including an NTN and a TN) via a terrestrial network node 122 (e.g., an evolved Node-B (eNB) , a Next Generation Node-B (gNB) , or a transmission/reception point (TRP) ) and/or a non-terrestrial network node 124 (e.g., a satellite) .
  • eNB evolved Node-B
  • gNB Next Generation Node-B
  • TRP transmission/reception point
  • the terrestrial network node 122 and/or the non-terrestrial network node 124 may form an NTN serving cell for wireless communication with the UE 110.
  • the UE 110 may be an IoT device such as an NB-IoT UE or an enhanced machine-type communication (eMTC) UE (e.g., a bandwidth reduced low complexity (BL) UE or a coverage enhancement (CE) UE) .
  • eMTC enhanced machine-type communication
  • the UE 110, the network 120, the terrestrial network node 122, and the non-terrestrial network node 124 may implement various schemes pertaining to UL transmission (Tx) extension and measurement gap configuration in GNSS operation in accordance with the present disclosure, as described below.
  • Tx UL transmission
  • CE coverage enhancement
  • an IoT system is mainly divided into NB-IoT and eMTC based on differences in system bandwidth and coverage.
  • the bandwidth used in NB-IoT is about 200 kilo-hertz (KHz) and supports the transmission of low traffic data at a rate below 100 kilobits per second (Kbps) .
  • KHz kilo-hertz
  • eMTC technology typically utilizes 1.4 mega-hertz (MHz) bandwidth and the maximum data transmission rate is 1 megabits per second (Mbps) .
  • component values for Y are proposed for the extension duration X, where X equals to Y when the timeAlignmentTimer is configured to be infinity.
  • Y may be configured by a 1-bit, 2-bit, 3-bit, or 4-bit higher layer (e.g., radio resource control (RRC) ) parameter.
  • RRC radio resource control
  • the component values of Y may be based on values of the timeAlignmentTimer (i.e., value in number of sub-frames (e.g., value sf500 corresponds to 500 sub-frames) ) .
  • the component values are times of sf10240, as shown in FIG. 2, where part (A) depicts two example cases of using a 1-bit field to indicate the component values of Y, while part (B) depicts two example cases of using a 2-bit field to indicate the component values of Y.
  • the component values are from values of timeAlignmentTimer and 0, as shown in FIG.
  • the component values of Y may be based on values of the GNSS validity duration (indicated by the GNSS-ValidityDuration information element (IE) ) (e.g., value s10 corresponds to 10 seconds, s20 corresponds to 20 seconds, and so on, and/or value min5 corresponds to 5 minutes, value min10 corresponds to 10 minutes, and so on) .
  • the component values are times of s10, as shown in FIG. 4, where part (A) depicts two example cases of using a 1-bit field to indicate the component values of Y, while part (B) depicts two example cases of using a 2-bit field to indicate the component values of Y.
  • the component values are from values of GNSS-ValidityDuration and 0, as shown in FIG. 5, where an example case of using a 4-bit field to indicate the component values of Y is depicted.
  • Y may be configured by a SIB or an RRC signaling.
  • Y may be configured in a SystemInformationBlockType2-NB IE for NB-IoT or in a SystemInformationBlockType2 IE for eMTC.
  • Y may be configured in a MAC-MainConfig-NB IE for NB-IoT or in a MAC-MainConfig IE for eMTC.
  • Y may be configured in a SystemInformationBlockType31-NB IE for NB-IoT or in a SystemInformationBlockType31 IE for eMTC.
  • Y may be configured in a new SIB.
  • the third field (denoted as “Y” ) is used to carry the value information Y for the extension duration X where UL transmission may be allowed after the original GNSS validity duration expires without a GNSS re-acquisition.
  • the fourth field (denoted as “GAP offset” ) is used to carry the GAP offset information for the start time of a GNSS measurement gap.
  • Y may not be configured.
  • option 1 when Y is not configured, it implicitly indicates that the mechanisms, to allow UL transmission after the original GNSS validity duration expires without a GNSS re-acquisition for some duration, is disabled or is not configured by network (e.g., eNB) .
  • Y is not configured and another higher layer parameter (e.g., ULtransmissionExtention or ul-TransmissionExtensionEnabled) indicates that the mechanisms, to allow UL transmission after the original GNSS validity duration expires without a GNSS re-acquisition for some duration, is enabled or configured by network (e.g., eNB)
  • another higher layer parameter e.g., ULtransmissionExtention or ul-TransmissionExtensionEnabled
  • the higher layer parameter ULtransmissionExtention (or named ul-TransmissionExtensionEnabled) may be configured in a MAC CE, e.g. GNSS measurement trigger MAC CE, for both NB-IoT and eMTC where the trigger information for GNSS measurement gap in the MAC CE is set to 0 or default, which indicates that GNSS measurement gap is not triggered.
  • the extension duration X may be implemented as a GNSS validity duration extension.
  • the operation procedure for the extension duration X, where UL transmission may be allowed after the original GNSS validity duration expires without a GNSS re-acquisition, may be the same as the operation procedure before the original GNSS validity duration expires.
  • the UE may perform one of the following: (i) if ULtransmissionExtention (or named ul-TransmissionExtensionEnabled) indicates that the mechanisms, to allow UL transmission after the original GNSS validity duration expires without a GNSS re-acquisition for some duration, is disabled by network (e.g., eNB) , and if GNSSAutonomousEnable indicates that the autonomous GNSS re-acquisition mechanism is disabled by network (e.g., eNB) and no GNSS measurement gap trigger is received, then the UE performs the actions upon leaving RRC_CONNECTED as specified in 3GPP technical specifications, with release cause set to ‘other’ ; and (ii) if ULtransmissionExtention (or named ul-TransmissionExtensionEnabled) indicates that the mechanisms, to allow UL transmission after original GNSS validity duration expires without GNSS re-acquisition for
  • the extension duration X may be implemented as a timer.
  • the operation procedure for the extension duration X where UL transmission may be allowed after the original GNSS validity duration expires without a GNSS re-acquisition, may be the same as the operation procedure before the original GNSS validity duration expires.
  • a new timer T3xx (e.g., T390) corresponding to the duration X may be introduced.
  • the UE may perform one of the following: (i) if T3xx is not configured, and if GNSSAutonomousEnable indicates that the autonomous GNSS re-acquisition mechanism is disabled by network (e.g., eNB) and no GNSS measurement gap trigger is received, then the UE performs the actions upon leaving RRC_CONNECTED as specified in 3GPP technical specifications, with release cause set to ‘other’ ; and (ii) if T3xx is configured and expired, and if GNSSAutonomousEnable indicates that the autonomous GNSS re-acquisition mechanism is disabled by network (e.g., eNB) and no GNSS measurement gap trigger is received, then the UE performs the actions upon leaving RRC_CONNECTED as specified in 3GPP technical specifications, with release cause set to ‘other’ .
  • X2 may be implemented as a predefined value. For example, in option 1, X2 equals to 1 milli-seconds (ms) for both NB-IoT and eMTC. In option 2, X2 equals to 3 ms for both NB-IoT and eMTC. In option 3, X2 equals to 12 ms for both NB-IoT and eMTC. In option 4, X2 equals to 12 ms for NB-IoT and equals to 3 ms for eMTC.
  • ms milli-seconds
  • X2 may be implemented as a configured value.
  • X2 may be configured by a 1/2/3/4 bit (s) higher layer parameter, as shown in FIG. 7, where part (A) depicts an example case of using a 1-bit field to indicate the component values of X2, part (B) depicts an example case of using a 2-bit field to indicate the component values of X2, part (C) depicts an example case of using a 3-bit field to indicate the component values of X2, and part (D) depicts an example case of using a 4-bit field to indicate the component values of X2.
  • X2 may be configured in a dedicated RRC parameter, e.g. Msg5, for both NB-IoT and eMTC.
  • X2 may be configured in a SIB.
  • FIG. 8 illustrates an example communication system 800 having an example communication apparatus 810 and an example network apparatus 820 in accordance with an implementation of the present disclosure.
  • Each of communication apparatus 810 and network apparatus 820 may perform various functions to implement schemes, techniques, processes and methods described herein pertaining to UL transmission extension and measurement gap configuration in GNSS operation, including scenarios/schemes described above as well as processes 900 and 1000 described below.
  • Communication apparatus 810 may be a part of an electronic apparatus, which may be a UE such as a portable or mobile apparatus, a wearable apparatus, a wireless communication apparatus or a computing apparatus.
  • communication apparatus 810 may be implemented in a smartphone, a smartwatch, a personal digital assistant, an electronic control unit (ECU) in a vehicle, a digital camera, or a computing equipment such as a tablet computer, a laptop computer or a notebook computer.
  • ECU electronice control unit
  • Communication apparatus 810 may also be a part of a machine type apparatus, which may be an IoT, NB-IoT, IIoT, BL, or CE UE such as an immobile or a stationary apparatus, a home apparatus, a roadside unit (RSU) , a wire communication apparatus or a computing apparatus.
  • communication apparatus 810 may be implemented in a smart thermostat, a smart fridge, a smart door lock, a wireless speaker or a home control center.
  • communication apparatus 810 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.
  • Communication apparatus 810 may include at least some of those components shown in FIG. 8 such as a processor 812, for example.
  • Communication apparatus 810 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 810 are neither shown in FIG. 8 nor described below in the interest of simplicity and brevity.
  • Network apparatus 820 may be a part of an electronic apparatus, which may be a network node such as a satellite, a base station (BS) , a small cell, a router or a gateway of an NTN.
  • network apparatus 820 may be implemented in a satellite or an eNB/gNB/TRP in a 4G/5G, NR, IoT, NB-IoT or IIoT network.
  • network apparatus 820 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 820 may include at least some of those components shown in FIG.
  • Network apparatus 820 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 820 are neither shown in FIG. 8 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 812 and processor 822 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 “a processor” is used herein to refer to processor 812 and processor 822, each of processor 812 and processor 822 may include multiple processors in some implementations and a single processor in other implementations in accordance with the present disclosure.
  • each of processor 812 and processor 822 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 812 and processor 822 is a special-purpose machine specifically designed, arranged and configured to perform specific tasks, including UL transmission extension and measurement gap configuration in GNSS operation, in a device (e.g., as represented by communication apparatus 810) and a network node (e.g., as represented by network apparatus 820) in accordance with various implementations of the present disclosure.
  • communication apparatus 810 may also include a transceiver 816 coupled to processor 812 and capable of wirelessly transmitting and receiving data.
  • transceiver 816 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 816 may be equipped with a plurality of antenna ports (not shown) such as, for example, four antenna ports. That is, transceiver 816 may be equipped with multiple transmit antennas and multiple receive antennas for multiple-input multiple-output (MIMO) wireless communications.
  • network apparatus 820 may also include a transceiver 826 coupled to processor 822.
  • Transceiver 826 may include a transceiver capable of wirelessly transmitting and receiving data.
  • transceiver 826 may be capable of wirelessly communicating with different types of UEs of different RATs.
  • transceiver 826 may be equipped with a plurality of antenna ports (not shown) such as, for example, four antenna ports. That is, transceiver 826 may be equipped with multiple transmit antennas and multiple receive antennas for MIMO wireless communications.
  • communication apparatus 810 may further include a memory 814 coupled to processor 812 and capable of being accessed by processor 812 and storing data therein.
  • network apparatus 820 may further include a memory 824 coupled to processor 822 and capable of being accessed by processor 822 and storing data therein.
  • Each of memory 814 and memory 824 may include a type of random-access memory (RAM) such as dynamic RAM (DRAM) , static RAM (SRAM) , thyristor RAM (T-RAM) and/or zero-capacitor RAM (Z-RAM) .
  • RAM random-access memory
  • DRAM dynamic RAM
  • SRAM static RAM
  • T-RAM thyristor RAM
  • Z-RAM zero-capacitor RAM
  • each of memory 814 and memory 824 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 814 and memory 824 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 810 and network apparatus 820 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 810, as a UE, and network apparatus 820, as a network node, is provided below with processes 900 and 1000.
  • FIG. 9 illustrates an example process 900 in accordance with an implementation of the present disclosure.
  • Process 900 may be an example implementation of above scenarios/schemes, whether partially or completely, with respect to UL transmission extension in GNSS operation.
  • Process 900 may represent an aspect of implementation of features of communication apparatus 810.
  • Process 900 may include one or more operations, actions, or functions as illustrated by one or more of blocks 910 to 930. Although illustrated as discrete blocks, various blocks of process 900 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 900 may be executed in the order shown in FIG. 9 or, alternatively, in a different order.
  • Process 900 may be implemented by or in communication apparatus 810 or any suitable UE or machine type devices. Solely for illustrative purposes and without limitation, process 900 is described below in the context of communication apparatus 810, as a UE, and network apparatus 820, as a network node. Process 900 may begin at block 910.
  • process 900 may involve processor 812 of communication apparatus 810 connecting, via transceiver 816, to network apparatus 820 of a wireless network to operate in a connected state (e.g., RRC_CONNECTED mode) with a GNSS validity duration.
  • Process 900 may proceed from block 910 to block 920.
  • process 900 may involve processor 812 receiving, via transceiver 816, a configuration of an extension duration from network apparatus 820.
  • Process 900 may proceed from block 920 to block 930.
  • process 900 may involve processor 812 determining that an UL transmission is allowed in the extension duration subsequent to an expiry of the GNSS validity duration.
  • the configuration of the extension duration may be received via a dedicated RRC signaling.
  • the dedicated RRC signaling may include an IE for a time alignment timer (e.g., timeAlignmentTimer) , and a value of the extension duration may be determined based on a remaining time of the time alignment timer in an event that the time alignment timer is not configured to be infinity.
  • a time alignment timer e.g., timeAlignmentTimer
  • the configuration of the extension duration indicates a value of the extension duration to be applied in an event that a time alignment timer is configured to be infinity.
  • the configuration of the extension duration may include a 3-bit field indicating the value of the extension duration.
  • process 900 may further involve processor 812 starting a timer (e.g., T3xx) with a value of the extension duration, and leaving the connected state in an event that the timer expires, no indication of a network triggered GNSS measurement has been received, and autonomous GNSS re-acquisition is disabled.
  • a timer e.g., T3xx
  • the determining that the UL transmission is allowed in the extension duration subsequent to the expiry of the GNSS validity duration may be performed in an event that a frequency error and a timing error of a GNSS position associated with the GNSS validity duration are within frequency and timing error requirements with a closed loop time correction.
  • process 900 may further involve processor 812 determining that the UL transmission is not allowed after the expiry of the GNSS validity duration, in an event that the configuration of the extension duration is not received.
  • process 900 may further involve processor 812 determining that the UL transmission is allowed in the extension duration subsequent to the expiry of the GNSS validity duration, in an event that the configuration of the extension duration is not received and an indication of enabling UL transmission extension is received, wherein the extension duration is set to a predetermined value.
  • the indication of enabling UL transmission extension is received via a dedicated RRC signaling.
  • FIG. 10 illustrates an example process 1000 in accordance with an implementation of the present disclosure.
  • Process 1000 may be an example implementation of above scenarios/schemes, whether partially or completely, with respect to measurement gap configuration in GNSS operation.
  • Process 1000 may represent an aspect of implementation of features of communication apparatus 810.
  • Process 1000 may include one or more operations, actions, or functions as illustrated by one or more of blocks 1010 to 1030. Although illustrated as discrete blocks, various blocks of process 1000 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 1000 may be executed in the order shown in FIG. 10 or, alternatively, in a different order.
  • Process 1000 may be implemented by or in communication apparatus 810 as well as any variations thereof. Solely for illustrative purposes and without limitation, process 1000 is described below in the context of communication apparatus 810, as a UE, and network apparatus 820, as a network node. Process 1000 may begin at block 1010.
  • process 1000 may involve processor 812 of communication apparatus 810 receiving, via transceiver 816, a MAC CE from network apparatus 820 of a wireless network, wherein the MAC CE indicates that a GNSS measurement gap is triggered.
  • Process 1000 may proceed from block 1010 to block 1020.
  • process 1000 may involve processor 812 determining that the GNSS measurement gap starts at a time equal to a value plus an end of a subframe or slot where a HARQ feedback for the MAC CE is transmitted to network apparatus 820.
  • Process 1000 may proceed from block 1020 to block 1030.
  • process 1000 may involve processor 812 performing, via transceiver 816, a GNSS measurement based on the GNSS measurement gap.
  • 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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne diverses solutions d'extension de transmission de liaison montante (UL) et de configuration d'intervalle de mesure dans un fonctionnement de système mondial de navigation par satellite (GNSS). Un appareil peut se connecter à un nœud de réseau d'un réseau sans fil pour fonctionner dans un état connecté avec une durée de validité GNSS. L'appareil peut également recevoir une configuration d'une durée d'extension du nœud de réseau. Ensuite, l'appareil peut déterminer qu'une transmission UL est autorisée dans la durée d'extension après une expiration de la durée de validité GNSS.
PCT/CN2024/107211 2023-09-08 2024-07-24 Procédés et appareil d'extension de transmission de liaison montante et de configuration d'intervalle de mesure dans un fonctionnement de système mondial de navigation par satellite Pending WO2025050865A1 (fr)

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PCT/CN2023/117735 WO2025050383A1 (fr) 2023-09-08 2023-09-08 Transmission ul après expiration de durée de validité gnss d'origine et intervalle de mesure gnss
CNPCT/CN2023/117735 2023-09-08

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PCT/CN2024/107211 Pending WO2025050865A1 (fr) 2023-09-08 2024-07-24 Procédés et appareil d'extension de transmission de liaison montante et de configuration d'intervalle de mesure dans un fonctionnement de système mondial de navigation par satellite

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