WO2023079326A1 - Appareil et procédé de communication sans fil - Google Patents

Appareil et procédé de communication sans fil Download PDF

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Publication number
WO2023079326A1
WO2023079326A1 PCT/IB2021/000761 IB2021000761W WO2023079326A1 WO 2023079326 A1 WO2023079326 A1 WO 2023079326A1 IB 2021000761 W IB2021000761 W IB 2021000761W WO 2023079326 A1 WO2023079326 A1 WO 2023079326A1
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WIPO (PCT)
Prior art keywords
timer
base station
validity duration
information
station controls
Prior art date
Application number
PCT/IB2021/000761
Other languages
English (en)
Inventor
Hao Lin
Original Assignee
Orope France Sarl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Orope France Sarl filed Critical Orope France Sarl
Priority to PCT/IB2021/000761 priority Critical patent/WO2023079326A1/fr
Publication of WO2023079326A1 publication Critical patent/WO2023079326A1/fr

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time

Definitions

  • the present disclosure relates to the field of communication systems, and more particularly, to an apparatus and a method of wireless communication, which can provide a good communication performance and/or high reliability.
  • Non-terrestrial networks refer to networks, or segments of networks, using a spaceborne vehicle or an airborne vehicle for transmission.
  • Spaceborne vehicles include satellites including low earth orbiting (LEO) satellites, medium earth orbiting (MEO) satellites, geostationary earth orbiting (GEO) satellites, and highly elliptical orbiting (HEO) satellites.
  • Airborne vehicles include high altitude platforms (HAPs) encompassing unmanned aircraft systems (UAS) including lighter than air (LTA) unmanned aerial systems (UAS) and heavier than air (HTA) UAS, all operating in altitudes typically between 8 and 50 km, quasi- stationary.
  • HAPs high altitude platforms
  • UAS unmanned aircraft systems
  • LTA lighter than air
  • UAS unmanned aerial systems
  • HTA heavier than air
  • Satellite velocity can augment up to more than 7 km/s, which is greatly beyond a maximum mobility speed experienced in a terrestrial network, e.g., high-speed train has a maximum speed of 500 km/h.
  • NB-IoT narrowband Internet of things
  • a timing advance for an uplink transmission is controlled by a network via a timing advance command (TAC), i.e., TS 38.213.
  • TAC timing advance command
  • the UE does not update the TA until it receives a new TAG.
  • TAC timing advance command
  • NTN system when a satellite is moving with a high velocity with regard to the UE position on earth, relying solely on network to control the synchronization adjustment does not seem to be feasible, since the adjustment needs to be performed very often, leading to an unaffordable signaling overhead.
  • an apparatus such as a user equipment (UE) and/or a base station
  • a method of wireless communication which can solve issues in the prior art, provide a recovery for first information after a validity duration, reduce signaling overhead, provide a good communication performance, and/or provide high reliability.
  • An object of the present disclosure is to propose an apparatus (such as a user equipment (UE) and/or a base station) and a method of wireless communication, which can solve issues in the prior art, provide a recovery for first information after a validity duration, reduce signaling overhead, provide a good communication performance, and/or provide high reliability.
  • UE user equipment
  • a method of wireless communication by a user equipment comprises being configured, by a base station or a serving cell, with a validity duration and performing a recovery for the first information after the validity duration.
  • a method of wireless communication by a base station comprises configuring, to a user equipment (UE), a validity duration and controlling the UE to perform a recovery for the first information after the validity duration.
  • UE user equipment
  • a user equipment comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver.
  • the processor is configured, by a base station or a serving cell, with a validity duration and performing a recovery for the first information after the validity duration.
  • a base station comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver.
  • the processor is configured to configure, to a user equipment (UE), a validity duration and control the UE to perform a recovery for the first information after the validity duration.
  • UE user equipment
  • a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to perform the above method.
  • a chip includes a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the above method.
  • a computer readable storage medium in which a computer program is stored, causes a computer to execute the above method.
  • a computer program product includes a computer program, and the computer program causes a computer to execute the above method.
  • a computer program causes a computer to execute the above method.
  • FIG. 1A is a block diagram of one or more user equipments (UEs) and a base station (e.g., gNB or eNB) of communication in a communication network system (e.g., non-terrestrial network (NTN) or a terrestrial network) according to an embodiment of the present disclosure.
  • UEs user equipments
  • a base station e.g., gNB or eNB
  • NTN non-terrestrial network
  • NTN non-terrestrial network
  • FIG. IB is a block diagram of one or more user equipments (UEs) and a base station (e.g., gNB or eNB) of communication in a non-terrestrial network (NTN) system according to an embodiment of the present disclosure.
  • UEs user equipments
  • NTN non-terrestrial network
  • FIG. 2 is a flowchart illustrating a method of wireless communication performed by a user equipment (UE) according to an embodiment of the present disclosure.
  • UE user equipment
  • FIG. 3 is a flowchart illustrating a method of wireless communication performed by a base station according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram illustrating a communication system including a base station (BS) and a UE according to an embodiment of the present disclosure.
  • BS base station
  • UE UE
  • FIG. 5 is a schematic diagram illustrating that a BS transmits 3 beams to the ground forming 3 footprints according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram illustrating an uplink-downlink timing relation according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram illustrating an example of a UE behavior for validity duration according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram illustrating an example of a UE behavior for validity duration according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram illustrating an example of a UE behavior for validity duration according to an embodiment of the present disclosure.
  • FIG. 10 is a block diagram of a system for wireless communication according to an embodiment of the present disclosure.
  • FIG. 1A illustrates that, in some embodiments, one or more user equipments (UEs) 10 and a base station (e.g., gNB or eNB) 20 for transmission adjustment in a communication network system 30 (e.g., non-terrestrial network (NTN) or terrestrial network) according to an embodiment of the present disclosure are provided.
  • the communication network system 30 includes the one or more UEs 10 and the base station 20.
  • the one or more UEs 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and the transceiver 13.
  • the base station 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and the transceiver 23.
  • the processor 11 or 21 may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of radio interface protocol may be implemented in the processor 11 or 21.
  • the memory 12 or 22 is operatively coupled with the processor 11 or 21 and stores a variety of information to operate the processor 11 or 21.
  • the transceiver 13 or 23 is operatively coupled with the processor 11 or 21, and the transceiver 13 or 23 transmits and/or receives a radio signal.
  • the processor 11 or 21 may include application-specific integrated circuit (ASIC), other chipset, logic circuit and/or data processing device.
  • the memory 12 or 22 may include read-only memory (ROM), random access memory (RAM), flash memory, memory card, storage medium and/or other storage device.
  • the transceiver 13 or 23 may include baseband circuitry to process radio frequency signals.
  • modules e.g., procedures, functions, and so on
  • the modules can be stored in the memory 12 or 22 and executed by the processor 11 or 21.
  • the memory 12 or 22 can be implemented within the processor 11 or 21 or external to the processor 11 or 21 in which case those can be communicatively coupled to the processor 11 or 21 via various means as is known in the art.
  • the communication between the UE 10 and the BS 20 comprises nonterrestrial network (NTN) communication.
  • the base station 20 comprises spaceborne platform or airborne platform or high altitude platform station.
  • the base station 20 can communicate with the UE 10 via a spaceborne platform or airborne platform, e.g., NTN satellite 40, as illustrated in FIG. IB.
  • FIG. IB illustrates a system which includes a base station 20 and one or more UEs 10.
  • the system may include more than one base station 20, and each of the base stations 20 may connect to one or more UEs 10.
  • IB may be a moving base station, e.g., spaceborne vehicle (satellite) or airborne vehicle (drone).
  • the UE 10 can transmit transmissions to the base station 20 and the UE 10 can also receive the transmission from the base station 20.
  • the moving base station can also serve as a relay which relays the received transmission from the UE 10 to a ground base station or vice versa.
  • a satellite 40 may be seen as a relay point which relays the communications between a UE 10 and a base station 20, e.g. gNB/eNB.
  • Spaceborne platform includes satellite 40 and the satellite 40 includes LEO satellite, MEO satellite, and GEO satellite.
  • the LEO satellite and MEO satellite are moving with regard to a given location on earth.
  • the GEO satellite is relatively static with regard to a given location on earth.
  • some embodiments focus on the LEO satellite type or MEO satellite type, for which some embodiments of the disclosure aim at resolving an issue of wider range of frequency offset and/or Doppler offset (shift).
  • Spaceborne platform includes satellite and the satellite includes low earth orbiting (LEO) satellite, medium earth orbiting (MEO) satellite and geostationary earth orbiting (GEO) satellite. While the satellite is moving, the LEO and MEO satellite is moving with regard to a given location on earth. However, for GEO satellite, the GEO satellite is relatively static with regard to a given location on earth.
  • LEO low earth orbiting
  • MEO medium earth orbiting
  • GEO geostationary earth orbiting
  • a user equipment needs to pre-compensate a propagation delay for a service link and a feeder link by using a timing advance.
  • the timing advance (TA) at least includes a first component N TA,UE_specific and a second component NTA, common.
  • the first component refers to the timing advance (TA) for compensating a service link delay, i.e., between a satellite and the UE.
  • the second component refers to the TA for compensating a feeder link delay, i.e., between satellite and a reference point, or the gateway (GW).
  • some examples present a method for timing advance calculation.
  • the processor 11 is configured, by a base station or a serving cell, with a validity duration and performing a recovery for the first information after the validity duration. This can solve issues in the prior art, provide a recovery for first information after a validity duration, reduce signaling overhead, provide a good communication performance, and/or provide high reliability.
  • the processor 21 is configured to control the UE 10 to apply a timing advance for an uplink transmission, wherein the timing advance comprises a first component and/or a second component, the first component is relevant to a first information, and the second component is relevant to a second information.
  • the timing advance comprises a first component and/or a second component
  • the first component is relevant to a first information
  • the second component is relevant to a second information.
  • the PDCCH comprises a narrowband PDCCH (NPDCCH).
  • FIG. 2 illustrates a method 200 of wireless communication by a user equipment (UE) 10 according to an embodiment of the present disclosure.
  • the method 200 includes: a block 202, being configured, by a base station or a serving cell, with a validity duration, and a block 204, performing a recovery for the first information after the validity duration.
  • a block 202 being configured, by a base station or a serving cell, with a validity duration
  • a block 204 performing a recovery for the first information after the validity duration.
  • FIG. 3 illustrates a method 300 of wireless communication by a base station 20 according to an embodiment of the present disclosure.
  • the method 300 includes: a block 302, configuring, to a user equipment (UE), a validity duration, and a block 304, controlling the UE to perform a recovery for the first information after the validity duration.
  • UE user equipment
  • a validity duration a validity duration
  • a block 304 controlling the UE to perform a recovery for the first information after the validity duration.
  • RRC radio resource control
  • the first information comprises a satellite ephemeris data and/or common timing advance (TA) related parameters.
  • the validity duration is used to check if the satellite ephemeris data and/or the common TA related parameters are valid.
  • the UE if the UE receives the satellite ephemeris data and/or the common TA related parameters in the validity duration, the UE restarts a new validity duration.
  • the UE assumes that the satellite ephemeris data and/or the common TA related parameters are not valid.
  • the first information comprises a new satellite ephemeris data and/or new common timing advance (TA) related parameters.
  • TA common timing advance
  • the validity duration is expired.
  • the UE is configured to acquire the new satellite ephemeris data and/or the new common TA related parameters.
  • performing the recovery for the first information after the validity duration comprises that the UE starts to monitor PDCCH that schedules a PDSCH carrying the first information.
  • the PDCCH monitoring is performed in a window, wherein the window comprises a system information update window.
  • the PDCCH monitoring is performed according to a PDCCH search space set.
  • the PDCCH search space set comprises a type 0 PDCCH CSS set or type 0A PDCCH CSS set.
  • the UE starts to monitor in the window in which the validity duration ends. In some embodiments, the UE starts to monitor from a next window after the validity duration ends.
  • the UE detects a PDCCH that contains a downlink control information (DO) scheduling a physical downlink shared channel (PDSCH) carrying the system information.
  • the UE changes an active downlink bandwidth part (BWP) to an initial downlink BWP, and the UE reads the system information in the initial DL BWP.
  • the UE performs the recovery for the first information after the validity duration when a first timer is still running.
  • the first timer is pre-configured or pre-defined.
  • the first timer comprises a timer relevant to radio link failure.
  • the first timer comprises one or more or any combination of: T300 timer, T301 timer, T304 timer, T307 timer, T310 timer, T311 timer, T312 timer, T316 timer, or T319 timer.
  • the UE when the UE detects the DO scheduling the PDSCH carrying the system information in a system information update window and the UE receives the new satellite ephemeris data and/or the new common TA related parameters, the UE restarts the validity duration and sets a start of the validity duration at a beginning of the window.
  • the UE when the UE receives the new satellite ephemeris data and/or the new common TA related parameters, the UE resets a new validity duration.
  • the UE performs a physical random access channel (PRACH) transmission to the base station.
  • the UE performs the PRACH transmission after reception of the first information.
  • the UE sets NTA value equal to 0.
  • the UE uses an existing NTA value.
  • the UE uses the existing NTA value when a second timer is running.
  • the UE after the UE transmits the PRACH transmission, the UE receives a timing advance command (TAC) from a random access response (RAR), and the UE applies the TAC.
  • TAC timing advance command
  • the UE applies the TAC from the RAR when a second timer is not running.
  • the UE ignores the TAC from the RAR when the second timer is running.
  • the UE restarts the second timer.
  • the second timer comprises a timing alignment timer.
  • the UE when the UE receives the new satellite ephemeris data and/or the new common TA related parameters, the UE performs the PRACH transmission to the base station if the second timer is not running or the second timer is expired.
  • the UE when the validity duration expires, the UE releases uplink configurations.
  • the UE releases the uplink configurations if the second timer is not running or is expired.
  • the UE performs the PRACH transmission in an active uplink BWP when the active uplink BWP is configured with RACH resources.
  • the UE performs the PRACH transmission in an initial uplink BWP if the active UL BWP is not configured with the RACH resources. In some embodiments, when determining the validity duration, the UE assumes that a start time instance of the validity duration is at a satellite side, a reference point side, or a gateway side.
  • FIG. 4 illustrates a communication system including a base station (BS) and a UE according to another embodiment of the present disclosure.
  • the communication system may include more than one base station, and each of the base stations may connect to one or more UEs.
  • the base station illustrated in FIG. 1 A may be a moving base station, e.g., spaceborne vehicle (satellite) or airborne vehicle (drone).
  • the UE can transmit transmissions to the base station and the UE can also receive the transmission from the base station.
  • the moving base station can also serve as a relay which relays the received transmission from the UE to a ground base station or vice versa.
  • Spaceborne platform includes satellite and the satellite includes LEO satellite, MEO satellite and GEO satellite. While the satellite is moving, the LEO and MEO satellite is moving with regards to a given location on earth. However, for GEO satellite, the GEO satellite is relatively static with regards to a given location on earth.
  • a moving base station or satellite e.g., in particular for LEO satellite or drone, communicates with a user equipment (UE) on the ground. Due to long distance between the UE and the base station on satellite, the beamformed transmission is needed to extend the coverage.
  • UE user equipment
  • FIG. 5 where a base station is integrated in a satellite or a drone, and the base station transmits one or more beams to the ground forming one or more coverage areas called footprint.
  • FIG. 5 illustrates that the BS transmits three beams (beam 1, beam 2 and beam3) to form three footprints (footprint 1 , 2 and 3), respectively.
  • 3 beams are transmitted at 3 different frequencies.
  • the bit position is associated with a beam.
  • FIG. 5 illustrates that, in some embodiments, a moving base station, e.g., in particular for LEO satellite or drone, communicates with a user equipment (UE) on the ground. Due to long distance between the UE and the base station on satellite, the beamformed transmission is needed to extend the coverage.
  • UE user equipment
  • each beam may be transmitted at dedicated frequencies so that the beams for footprint 1, 2 and 3 are nonoverlapped in a frequency domain. The advantage of having different frequencies corresponding to different beams is that the inter-beam interference can be minimized.
  • a moving base station e.g., in particular for LEO satellite or drone, communicates with a user equipment (UE) on the ground.
  • a round trip time (RTT) between the BS and the UE is time varying.
  • the RTT variation is related to a distance variation between the BS and the UE.
  • the RTT variation rate is proportional to a BS motion velocity.
  • the BS will adjust an uplink transmission timing and/or frequency for the UE.
  • a method for uplink synchronization adjustment is provided, and the uplink synchronization adjustment comprises at least one of the followings: a transmission timing adjustment or a transmission frequency adjustment.
  • the transmission timing adjustment further comprises a timing advance (TA) adjustment.
  • TA timing advance
  • FIG. 6 illustrates an uplink-downlink timing relation according to an embodiment of the present disclosure.
  • T f refers to a radio frame duration.
  • ⁇ f refers to subcarrier spacing.
  • n f refers to a system frame number (SFN).
  • T c refers to a basic time unit for NR.
  • T sf refers to a subframe duration.
  • the number of consecutive orthogonal frequency division multiplexed (OFDM) symbols per subframe is refers to number of OFDM symbols per subframe for subcarrier spacing configuration ⁇ .
  • N symb slot refers to number of symbols per slot.
  • Nsiot frame , ⁇ refers to number of slots per subframe for subcarrier spacing configuration ⁇ .
  • Each frame is divided into two equally-sized half-frames of five subframes each with half-frame 0 consisting of subframes 0 to 4 and half-frame 1 consisting of subframes 5 to 9. There is one set of frames in the uplink and one set of frames in the downlink on a carrier.
  • T TA refers to timing advance between downlink and uplink.
  • N TA refers to timing advance between downlink and uplink.
  • a TA offset refers to a fixed offset used to calculate the timing advance.
  • T c refers to a basic time unit for NR.
  • FIG. 7 illustrates an example of a UE behavior for validity duration according to an embodiment of the present disclosure.
  • a UE is configured by a network or by its serving cell with a validity duration as illustrated in FIG. 7.
  • the validity duration is used to check if the received satellite ephemeris data and/or the common TA related parameters are still valid. Within the validity duration, the UE assumes that the satellite ephemeris data and/or the common TA related parameters are still valid. After the validity duration, the UE assumes that the satellite ephemeris data and/or the common TA related parameters are not valid.
  • FIG. 8 illustrates an example of a UE behavior for validity duration according to an embodiment of the present disclosure.
  • the UE will acquire new ephemeris data and/or new common TA related parameters.
  • the information may be transmitted in system information or RRC.
  • UE shall read SIB.
  • the UE may follow the SIB update acquisition procedure, e.g., start to monitor type 0 or type 0A PDCCH search space set in the next SI update window after the validity duration expires or in the current SI update window when the validity duration expires as shown in FIG. 8.
  • the UE detects a PDCCH that contains a DO scheduling a PDSCH carrying the SIB.
  • the UE shall change the active DL BWP to the initial DL BWP and the UE reads SIB in the initial DL BWP.
  • the UE will perform the above monitoring when a first timer is still running, where the first timer is pre-configured or pre-defined.
  • the first timer comprises a timer relevant to radio link failure.
  • FIG. 9 is a schematic diagram illustrating an example of a UE behavior for validity duration according to an embodiment of the present disclosure.
  • the UE when UE detects a DO scheduling a PDSCH carrying the SIB in a SI update window, and UE receives the new ephemeris data and/or the new common TA related parameters, the UE restarts the validity duration and set the start of the validity duration at the beginning of the SI update window as illustrated in FIG. 9.
  • the UE when the UE receives the new ephemeris data and/or the new common TA related parameters, the UE resets a new validity duration.
  • the UE performs PRACH transmission to the network.
  • the UE uses the existing NTA value.
  • the UE uses the existing NTA value when a second timer is still running.
  • the second timer comprises a timing alignment timer.
  • the UE after UE transmits the PRACH, the UE receives a TAC from the RAR, the UE shall apply the TAC.
  • the UE applies the TAC from the RAR, when the second timer is not running. In some examples, the UE ignores the TAC from the RAR, when the second timer is running. In some examples, when UE applies the TAC from the RAR, the UE restarts the second timer.
  • the UE when the UE receives the new ephemeris data and/or the new common TA related parameters, the UE performs PRACH transmission to the network if the second timer is not running or the second timer is expired. In some examples, when the validity duration expires, the UE releases the UL configurations. In some examples, when the validity duration expires, the UE releases the UL configurations if the second timer is not running or is expired. In some examples, the UE performs PRACH transmission is active UL BWP when the active UL BWP is configured with RACH resources. In some examples, the UE performs PRACH transmission in initial UL BWP if the active UL BWP is not configured with RACH resources. When determining the validity time duration, the UE assumes that the validity time duration start time instance is at satellite side or at reference point side or at gateway side.
  • the examples given in this disclosure can be applied for loT device or NB-IoT UE in NTN systems, but the method is not exclusively restricted to NTN system nor for loT devices or NB-IoT UE.
  • the examples given in this disclosure can be applied for NR systems, LTE systems, or NB-IoT systems.
  • Commercial interests for some embodiments are as follows. 1. Solving issues in the prior art. 2. Providing a recovery for first information after a validity duration. 3. Reducing signaling overhead. 4. Providing a good communication performance. 5. Providing a high reliability. 6.
  • Some embodiments of the present disclosure are used by 5G-NR chipset vendors, V2X communication system development vendors, automakers including cars, trains, trucks, buses, bicycles, moto-bikes, helmets, and etc., drones (unmanned aerial vehicles), smartphone makers, communication devices for public safety use, AR/VR device maker for example gaming, conference/seminar, education purposes.
  • Some embodiments of the present disclosure are a combination of “techniques/processes” that can be adopted in 3GPP specification to create an end product.
  • Some embodiments of the present disclosure could be adopted in the 5G NR unlicensed band communications.
  • Some embodiments of the present disclosure propose technical mechanisms.
  • FIG. 10 is a block diagram of an example system 700 for wireless communication according to an embodiment of the present disclosure. Embodiments described herein may be implemented into the system using any suitably configured hardware and/or software.
  • FIG. 10 illustrates the system 700 including a radio frequency (RF) circuitry 710, a baseband circuitry 720, an application circuitry 730, a memory/storage 740, a display 750, a camera 760, a sensor 770, and an input/output (I/O) interface 780, coupled with each other at least as illustrated.
  • the application circuitry 730 may include a circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the processors may include any combination of general-purpose processors and dedicated processors, such as graphics processors, application processors.
  • the processors may be coupled with the memory/storage and configured to execute instructions stored in the memory/storage to enable various applications and/or operating systems running on the system.
  • the baseband circuitry 720 may include circuitry such as, but not limited to, one or more singlecore or multi-core processors.
  • the processors may include a baseband processor.
  • the baseband circuitry may handle various radio control functions that enables communication with one or more radio networks via the RF circuitry.
  • the radio control functions may include, but are not limited to, signal modulation, encoding, decoding, radio frequency shifting, etc.
  • the baseband circuitry may provide for communication compatible with one or more radio technologies.
  • the baseband circuitry may support communication with an evolved universal terrestrial radio access network (EUTRAN) and/or other wireless metropolitan area networks (WMAN), a wireless local area network (WLAN), a wireless personal area network (WPAN).
  • EUTRAN evolved universal terrestrial radio access network
  • WMAN wireless metropolitan area networks
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • Embodiments in which the baseband circuitry is configured to support radio communications of more than one wireless protocol may be referred to as multi-mode baseband circuitry
  • the baseband circuitry 720 may include circuitry to operate with signals that are not strictly considered as being in a baseband frequency.
  • baseband circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.
  • the RF circuitry 710 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium.
  • the RF circuitry may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network.
  • the RF circuitry 710 may include circuitry to operate with signals that are not strictly considered as being in a radio frequency.
  • RF circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.
  • the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to the user equipment, eNB, or gNB may be embodied in whole or in part in one or more of the RF circuitry, the baseband circuitry, and/or the application circuitry.
  • “circuitry” may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group), and/or a memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality.
  • ASIC Application Specific Integrated Circuit
  • the electronic device circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules.
  • some or all of the constituent components of the baseband circuitry, the application circuitry, and/or the memory/storage may be implemented together on a system on a chip (SOC).
  • SOC system on a chip
  • the memory/storage 740 may be used to load and store data and/or instructions, for example, for system.
  • the memory/storage for one embodiment may include any combination of suitable volatile memory, such as dynamic random access memory (DRAM)), and/or non-volatile memory, such as flash memory.
  • DRAM dynamic random access memory
  • flash memory non-volatile memory
  • the I/O interface 780 may include one or more user interfaces designed to enable user interaction with the system and/or peripheral component interfaces designed to enable peripheral component interaction with the system.
  • User interfaces may include, but are not limited to a physical keyboard or keypad, a touchpad, a speaker, a microphone, etc.
  • Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface.
  • the sensor 770 may include one or more sensing devices to determine environmental conditions and/or location information related to the system.
  • the sensors may include, but are not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit.
  • the positioning unit may also be part of, or interact with, the baseband circuitry and/or RF circuitry to communicate with components of a positioning network, e.g., a global positioning system (GPS) satellite.
  • GPS global positioning system
  • the display 750 may include a display, such as a liquid crystal display and a touch screen display.
  • the system 700 may be a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, an AR/VR glasses, etc.
  • system may have more or less components, and/or different architectures.
  • methods described herein may be implemented as a computer program.
  • the computer program may be stored on a storage medium, such as a non-transitory storage medium.
  • the units as separating components for explanation are or are not physically separated.
  • the units for display are or are not physical units, that is, located in one place or distributed on a plurality of network units. Some or all of the units are used according to the purposes of the embodiments.
  • each of the functional units in each of the embodiments can be integrated in one processing unit, physically independent, or integrated in one processing unit with two or more than two units.
  • the software function unit is realized and used and sold as a product, it can be stored in a readable storage medium in a computer. Based on this understanding, the technical plan proposed by the present disclosure can be essentially or partially realized as the form of a software product.
  • the software product in the computer is stored in a storage medium, including a plurality of commands for a computational device (such as a personal computer, a server, or a network device) to run all or some of the steps disclosed by the embodiments of the present disclosure.
  • the storage medium includes a USB disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a floppy disk, or other kinds of media capable of storing program codes.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Un appareil et un procédé de communication sans fil sont décrits. Le procédé par un équipement utilisateur (UE) consiste à être configuré, par une station de base ou une cellule de desserte, avec une durée de validité et à réaliser une récupération des premières informations après la durée de validité. L'invention peut résoudre des problèmes dans l'état de la technique, fournir une récupération de premières informations après une durée de validité, réduire le surdébit de signalisation, fournir de bonnes performances de communication et/ou fournir une fiabilité élevée.
PCT/IB2021/000761 2021-11-05 2021-11-05 Appareil et procédé de communication sans fil WO2023079326A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190274169A1 (en) * 2018-03-05 2019-09-05 Asustek Computer Inc. Method and apparatus of handling beam failure recovery in a wireless communication system
US20210014823A1 (en) * 2019-07-08 2021-01-14 Qualcomm Incorporated System information and paging monitoring for multiple synchronization signal blocks
US20210105761A1 (en) * 2019-10-04 2021-04-08 FG Innovation Company Limited Method and apparatus for transmission timing enhancement for different numerologies in ntn
WO2021066696A1 (fr) * 2019-10-03 2021-04-08 Telefonaktiebolaget Lm Ericsson (Publ) Procédés de mise à jour de données d'éphémérides dans un réseau non terrestre (ntn)
WO2021159726A1 (fr) * 2020-02-14 2021-08-19 华为技术有限公司 Procédé de détermination de l'avance temporelle, et appareil de communication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190274169A1 (en) * 2018-03-05 2019-09-05 Asustek Computer Inc. Method and apparatus of handling beam failure recovery in a wireless communication system
US20210014823A1 (en) * 2019-07-08 2021-01-14 Qualcomm Incorporated System information and paging monitoring for multiple synchronization signal blocks
WO2021066696A1 (fr) * 2019-10-03 2021-04-08 Telefonaktiebolaget Lm Ericsson (Publ) Procédés de mise à jour de données d'éphémérides dans un réseau non terrestre (ntn)
US20210105761A1 (en) * 2019-10-04 2021-04-08 FG Innovation Company Limited Method and apparatus for transmission timing enhancement for different numerologies in ntn
WO2021159726A1 (fr) * 2020-02-14 2021-08-19 华为技术有限公司 Procédé de détermination de l'avance temporelle, et appareil de communication

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