[go: up one dir, main page]

WO2023079329A1 - Procédés et appareils de transmission et de réception de srs - Google Patents

Procédés et appareils de transmission et de réception de srs Download PDF

Info

Publication number
WO2023079329A1
WO2023079329A1 PCT/IB2021/000783 IB2021000783W WO2023079329A1 WO 2023079329 A1 WO2023079329 A1 WO 2023079329A1 IB 2021000783 W IB2021000783 W IB 2021000783W WO 2023079329 A1 WO2023079329 A1 WO 2023079329A1
Authority
WO
WIPO (PCT)
Prior art keywords
offset
slot
srs
base station
srs transmission
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IB2021/000783
Other languages
English (en)
Inventor
Hao Lin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orope France SARL
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/IB2021/000783 priority Critical patent/WO2023079329A1/fr
Publication of WO2023079329A1 publication Critical patent/WO2023079329A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT

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 spacebome vehicle or an airborne vehicle for transmission.
  • Spacebome 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
  • a sounding reference symbol (SRS) resource is configured in a radio resource control (RRC) message.
  • RRC radio resource control
  • DCI downlink control information
  • the offset contains one value configured by the RRC.
  • a timing advance is not frequently changed and thus the offset is not changed over time.
  • the timing advance at a user equipment (UE) may be changed rapidly. In case, the timing advance is increased over time, the pre-configured offset value may result in a situation that the UE is lack of processing time for preparing SRS transmission.
  • 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 processing time for UE to prepare SRS transmission, 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 processing time for UE to prepare SRS transmission, reduce signaling overhead, provide a good communication performance, and/or provide high reliability.
  • UE user equipment
  • base station a base station
  • a method of wireless communication by a user equipment comprises receiving, from a base station, a sounding reference symbol (SRS) request in a first slot and determining a second slot for SRS transmission, wherein the second slot is relevant to the first slot, a first offset, and/or a second offset.
  • SRS sounding reference symbol
  • a method of wireless communication by a base station comprises transmitting, to a user equipment (UE), a sounding reference symbol (SRS) request in a first slot and controlling the UE to determine a second slot for SRS transmission, wherein the second slot is relevant to the first slot, a first offset, and/or a second offset.
  • UE user equipment
  • SRS sounding reference symbol
  • a user equipment comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver.
  • the transceiver is configured to receive, from a base station, a sounding reference symbol (SRS) request in a first slot
  • the processor is configured to determine a second slot for SRS transmission, wherein the second slot is relevant to the first slot, a first offset, and/or a second offset.
  • SRS sounding reference symbol
  • a base station comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver.
  • the transceiver is configured to transmit, to a user equipment (UE), a sounding reference symbol (SRS) request in a first slot
  • the processor is configured to control the UE to determine a second slot for SRS transmission, wherein the second slot is relevant to the first slot, a first offset, and/or a second offset.
  • UE user equipment
  • SRS sounding reference symbol
  • 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. 1 A 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 slot determination for SRS transmission according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram illustrating an example of a slot determination for SRS transmission according to an embodiment of the present disclosure.
  • FIG. 9 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 non-terrestrial network (NTN) communication.
  • NTN non-terrestrial network
  • the base station 20 comprises spacebome platform or airborne platform or high altitude platform station.
  • the base station 20 can communicate with the UE 10 via a spacebome 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.
  • the base station 20 as illustrated in FIG. IB may be a moving base station, e.g., spacebome 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.
  • Spacebome platform includes satellite 40 and the satellite 40 includes LEO satellite, MEO satellite, and GEO satellite. While the satellite 40 is moving, the LEO satellite and MEO satellite are 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. In some embodiments of this disclosure, 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).
  • Spacebome 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
  • the transceiver 13 is configured to receive, from the base station 20, a sounding reference symbol (SRS) request in a first slot, and the processor 11 is configured to determine a second slot for SRS transmission, wherein the second slot is relevant to the first slot, a first offset, and/or a second offset.
  • SRS sounding reference symbol
  • the transceiver 23 is configured to transmit, to the user equipment (UE) 10, a sounding reference symbol (SRS) request in a first slot
  • the processor 21 is configured to control the UE to determine a second slot for SRS transmission, wherein the second slot is relevant to the first slot, a first offset, and/or a second offset.
  • 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, receiving, from a base station, a sounding reference symbol (SRS) request in a first slot, and a block 204, determining a second slot for SRS transmission, wherein the second slot is relevant to the first slot, a first offset, and/or a second offset.
  • SRS sounding reference symbol
  • 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, transmitting, to a user equipment (UE), a sounding reference symbol (SRS) request in a first slot, and a block 304, controlling the UE to determine a second slot for SRS transmission, wherein the second slot is relevant to the first slot, a first offset, and/or a second offset.
  • UE user equipment
  • SRS sounding reference symbol
  • the first slot refers to a slot in which the UE receives, from the base station, a physical downlink control channel (PDCCH) carrying the SRS request.
  • the second slot refers to a slot in which the UE transmits the SRS transmission.
  • a location of the second slot is defined as a location of the first slot plus the first offset and/or the second offset.
  • the first offset and the second offset are in units of slots.
  • the first offset is configured in an SRS configuration via a radio resource control (RRC) message.
  • RRC radio resource control
  • the UE is configured with a plurality of configured values for the first offset.
  • a value among the configured values for the first offset is activated by the base station as an activated value.
  • the value among the configured values for the first offset is activated by the base station as the activated value via a media access control-control element (MAC-CE) or a downlink control information (DCI).
  • the UE is configured to determine the activated value as the first offset.
  • the second offset is configured in an SRS configuration via an RRC message or in a system information.
  • the second offset is relevant to a first parameter, and the first parameter is configured in an SRS configuration via an RRC message or in a system information.
  • the first parameter has a unit of milliseconds.
  • the UE determines the second offset by converting the first parameter to a number of slots. In some embodiments, the UE converts the first parameter to the number of slots based on a reference subcarrier spacing. In some embodiments, the reference subcarrier spacing is an active bandwidth part (BWP) subcarrier spacing, a pre-defined subcarrier spacing, or a pre-configured subcarrier spacing. In some embodiments, a time interval is between a last symbol of the PDCCH carrying the SRS request and a first symbol of the SRS transmission. In some embodiments, the UE performs the SRS transmission when the time interval is equal to or larger than a threshold. In some embodiments, the threshold is pre-defined or pre-configured. In some embodiments, the SRS transmission is relevant to a time advance. In some embodiments, the first symbol of the SRS transmission is relevant to a time advance.
  • BWP active bandwidth part
  • 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. 1A may be a moving base station, e.g., spacebome 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.
  • Spacebome 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
  • 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.
  • 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.
  • a moving base station e.g., in particular for LEO satellite or drone, communicates with a user equipment (UE) on the ground.
  • UE user equipment
  • each beam may be transmitted at dedicated frequencies so that the beams for footprint 1, 2 and 3 are non-overlapped 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.
  • ⁇ 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 refers to number of symbols per slot. 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.
  • N 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 is a schematic diagram illustrating an example of a slot determination for SRS transmission according to an embodiment of the present disclosure.
  • FIG. 7 illustrates that, in some examples, there is a condition on a processing time and if the condition is met, a UE transmits the SRS.
  • the condition is that a time interval after the last symbol of a PDCCH carrying a request of SRS transmission and the first symbol of the SRS transmission is equal to or larger than a threshold.
  • the SRS is allocated in the slot index n plus a first offset
  • the slot n is the slot in which the UE receives a PDCCH carrying an SRS request and the corresponding SRS transmission is allocated in slot n plus the first offset.
  • the UE can prepare an SRS transmission in the slot n plus the first offset with considering timing advance (TA) as illustrated in FIG. 7.
  • TA timing advance
  • the time interval is the from the last symbol of the PDCCH carrying the SRS request and the first symbol of the SRS transmission considering the TA.
  • the threshold is pre-defined or pre-configured.
  • the SRS transmission considers timing advance.
  • FIG. 8 is a schematic diagram illustrating an example of a slot determination for SRS transmission according to an embodiment of the present disclosure.
  • FIG. 8 illustrates that, in some examples, when a UE receives an SRS request and the UE can determine that an SRS slot by taking into account a first slot, a first offset, and/or a second offset.
  • FIG. 8 illustrates that, in some examples, both first and second offsets are used to determine the SRS slot.
  • the SRS slot refers to a slot in which the UE transmits the SRS transmission.
  • the SRS slot has a slot index. In case the UE receives a PDCCH carrying the SRS request in the slot n, the slot n is the first slot.
  • the SRS slot index is n plus the first offset plus the second offset, or n plus the first offset or n plus the second offset.
  • the first offset and the second offset are of slot units.
  • the first offset is configured in SRS configuration via an RRC message.
  • the second offset may be configured in a system information.
  • the second offset is relevant to a first parameter, where the first parameter is configured in the system information.
  • the first parameter has unit of milliseconds and the UE can determine the second offset by converting the first parameter to the number of slots.
  • the conversion can consider a reference subcarrier spacing.
  • the reference subcarrier spacing may be an active BWP subcarrier spacing, a pre-defined subcarrier spacing, or a pre-configured subcarrier spacing.
  • the UE is configured more than one value for the first offset
  • a network such as a base station may activate a value among the configured values, and the UE can determine the activated value as the first offset.
  • the network may activate the value via MAC-CE or DCI.
  • FIG. 9 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. 9 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 singlecore 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 single-core 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 (WEAN), a wireless personal area network (WPAN).
  • EUTRAN evolved universal terrestrial radio access network
  • WMAN wireless metropolitan area networks
  • WEAN 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 multimode baseband circuit
  • 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.
  • the technical plan proposed by the present disclosure can be essentially or partially realized as the form of a software product.
  • one part of the technical plan beneficial to the conventional technology can be 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un appareil et un procédé de communication sans fil. Le procédé par un équipement utilisateur (UE) consiste à : recevoir, en provenance d'une station de base, une demande de symbole de référence de sondage (SRS) dans un premier créneau et déterminer un second créneau pour la transmission de SRS, le second créneau étant approprié au premier créneau, à un premier décalage, et/ou à un second décalage. Ceci peut résoudre des problèmes dans l'état de la technique, fournir un temps de traitement pour l'UE afin de préparer une transmission de SRS, réduire le surdébit de signalisation, fournir une bonne performance de communication, et/ou fournir une fiabilité élevée.
PCT/IB2021/000783 2021-11-02 2021-11-02 Procédés et appareils de transmission et de réception de srs Ceased WO2023079329A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2021/000783 WO2023079329A1 (fr) 2021-11-02 2021-11-02 Procédés et appareils de transmission et de réception de srs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2021/000783 WO2023079329A1 (fr) 2021-11-02 2021-11-02 Procédés et appareils de transmission et de réception de srs

Publications (1)

Publication Number Publication Date
WO2023079329A1 true WO2023079329A1 (fr) 2023-05-11

Family

ID=79283136

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2021/000783 Ceased WO2023079329A1 (fr) 2021-11-02 2021-11-02 Procédés et appareils de transmission et de réception de srs

Country Status (1)

Country Link
WO (1) WO2023079329A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210075565A1 (en) * 2017-11-17 2021-03-11 Samsung Electronics Co., Ltd. Method and apparatus for transmitting sounding reference signal in wireless communication system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210075565A1 (en) * 2017-11-17 2021-03-11 Samsung Electronics Co., Ltd. Method and apparatus for transmitting sounding reference signal in wireless communication system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for data (Release 16)", vol. RAN WG1, no. V16.7.0, 28 September 2021 (2021-09-28), pages 1 - 172, XP052056880, Retrieved from the Internet <URL:https://ftp.3gpp.org/Specs/archive/38_series/38.214/38214-g70.zip 38214-g70.docx> [retrieved on 20210928] *

Similar Documents

Publication Publication Date Title
US20240008012A1 (en) Apparatus and method of wireless communication
US20230308172A1 (en) Apparatus and method of wireless communication
US12477590B2 (en) User equipment, base station, and information transmission method
US20230353230A1 (en) Apparatus and method of wireless communication
US20230262672A1 (en) Method of wireless communication, base station and user equipment
US12376057B2 (en) Apparatus and method of timing advance indication of same
US20240196351A1 (en) User equipment, base station, and wireless communication method
US20230141338A1 (en) Methods, ue and base station of communication
WO2022008945A1 (fr) Appareil et procédé de communication dans des réseaux non terrestres
CN116472684A (zh) 无线通信的装置和方法
WO2022053843A1 (fr) Appareil et procédé de communication
WO2023111619A1 (fr) Appareil et procédé de communication sans fil
WO2023079329A1 (fr) Procédés et appareils de transmission et de réception de srs
US20240121739A1 (en) Wireless communication method and user equipment
US20240171333A1 (en) Apparatus and method of wireless communication
WO2022112840A2 (fr) Appareil et procédé de communication sans fil
WO2021255491A1 (fr) Appareil et procédé pour un ajustement de transmission dans un réseau non terrestre
WO2022064234A1 (fr) Appareil et procédé de traitement de retard de procédure de commande de ressources radio
WO2022084711A1 (fr) Appareil et procédé de communication sans fil
WO2023111616A1 (fr) Appareil et procédé de communication sans fil
WO2023079324A1 (fr) Appareil et procédé de communication sans fil
WO2023079326A1 (fr) Appareil et procédé de communication sans fil
WO2023111620A1 (fr) Appareil et procédé de communication sans fil
WO2023111617A1 (fr) Appareil et procédé de communication sans fil
WO2022029461A1 (fr) Appareil et procédé de transmission de canal partagé de liaison montante physique

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21839654

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 21839654

Country of ref document: EP

Kind code of ref document: A1