WO2023203361A1 - Appareil et procédé de communication sans fil - Google Patents

Appareil et procédé de communication sans fil Download PDF

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Publication number
WO2023203361A1
WO2023203361A1 PCT/IB2022/000305 IB2022000305W WO2023203361A1 WO 2023203361 A1 WO2023203361 A1 WO 2023203361A1 IB 2022000305 W IB2022000305 W IB 2022000305W WO 2023203361 A1 WO2023203361 A1 WO 2023203361A1
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WO
WIPO (PCT)
Prior art keywords
resources
duration
resource
uci
present disclosure
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Application number
PCT/IB2022/000305
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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/IB2022/000305 priority Critical patent/WO2023203361A1/fr
Publication of WO2023203361A1 publication Critical patent/WO2023203361A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

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.
  • Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power).
  • Examples of such multipleaccess systems include fourth generation (4G) systems such as long term evolution (LTE) systems, LTE-advanced (LTE-A) systems, or LTE-A pro systems, and fifth generation (5G) systems which may be referred to as new radio (NR) systems.
  • 4G systems such as long term evolution (LTE) systems, LTE-advanced (LTE-A) systems, or LTE-A pro systems
  • 5G systems which may be referred to as new radio (NR) systems.
  • a wireless multiple-access communications system may include a number of base stations or network access nodes, each simultaneously supporting communication for multiple communication devices, which may be otherwise known as user equipment (UE).
  • UE user equipment
  • a mobile communication After giving birth to the 3rd generation partnership project (3GPP) new radio (NR) technology, a mobile communication enters a 5G era.
  • 3GPP 3rd generation partnership project
  • NR new radio
  • a network seeks for higher throughput, lower latency, and more robust transmissions.
  • the network operators are also facing higher operational expense.
  • One of main factors contributing to the operational expense is a network power consumption.
  • the network For a network ensuring a stable communication within a cell coverage, the network periodically broadcasts a set of downlink signals, which include synchronization signal block (SSB), typeO physical downlink control channel (PDCCH), and/or system information block type 1 (SIB1), where typeO PDCCH and SIB1 are always transmitted in an initial downlink (DL) bandwidth part (BWP).
  • SSB synchronization signal block
  • PDCCH typeO physical downlink control channel
  • SIB1 system information block type 1
  • the network also needs to periodically blind detect whether there is configured uplink transmission, e.g., physical random access channel (PRACH) transmission, configured grant-physical uplink shared channel (CG-PUSCH) transmissions. All these will consume a lot of network power. To make a sustainable network operation, a network side power consumption needs to be considered.
  • uplink transmission e.g., physical random access channel (PRACH) transmission, configured grant-physical uplink shared channel (CG-PUSCH) transmissions. All these will consume a lot of network power.
  • PRACH physical random access channel
  • CG-PUSCH configured grant-physical uplink shared channel
  • 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 provide a method that allows the base station to reduce a cell power consumption, provide a good communication performance, and/or provide high reliability.
  • UE user equipment
  • base station a base station
  • a method of wireless communication which can provide a method that allows the base station to reduce a cell power consumption, provide a good communication performance, and/or provide high reliability.
  • a method of wireless communication by a user equipment comprises being configured, by a base station, with a set of resources for transmissions and providing, to the base station, an assistant information relevant to a resource usage of the set of resources.
  • the transmissions comprise downlink transmissions or uplink transmissions.
  • one of the downlink transmissions comprise at least one of the followings: a physical downlink shared channel (PDSCH), a physical downlink control channel (PDCCH), a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), or a tracking reference signal (TRS).
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • SSB synchronization signal block
  • CSI-RS channel state information reference signal
  • TRS tracking reference signal
  • one of the uplink transmissions comprise at least one of the followings: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a sounding reference signal (SRS), or a physical random access channel (PRACH).
  • PRACH physical random access channel
  • the resource usage comprises at least one of the followings: at least one resource of the set of the resources is used for the transmissions; or at least one resource of the set of resources is not used for the transmissions.
  • the transmissions are configured as periodic transmissions.
  • the set of resources are configured by a radio resource control (RRC), and/or a downlink control information (DCI), and/or a medium access control-control element (MAC-CE), and/or the set of resources are pre-defined.
  • RRC radio resource control
  • DCI downlink control information
  • MAC-CE medium access control-control element
  • the set of resources are for PUSCH transmissions, and the set of resources comprise configured grant (CG) resources.
  • CG configured grant
  • the set of resources are for PUCCH transmissions, and a PUCCH of the PUCCH transmissions carries a scheduling request information.
  • the set of resources are for PDSCH transmissions, and a PDSCH of PDSCH transmissions carries a system information, or the PDSCH is a semi-persistent scheduling (SPS) PDSCH.
  • SPS semi-persistent scheduling
  • the resource usage provides information about a duration in which the UE does not use one or more CG resources of the set of resources for PUSCH transmission.
  • the resource usage provides information about a duration in which the UE uses one or more CG resources of the set of resources for PUSCH transmission.
  • the assistant information is carried in at least one of the followings: a uplink control information (UCI), a MAC-CE, or an RRC. [0018] In some embodiments of any one of the above methods according to the first aspect of the present disclosure, the assistant information is carried in the UCI, and the UCI is transmitted in a PUCCH or a PUSCH.
  • UCI uplink control information
  • RRC Radio Resource Control
  • the assistant information is carried in a CG-UCI.
  • the information is carried in a CG-UCI, a PUCCH resource, or a PUSCH, where the CG-UCI is transmitted in one CG resource of the set of resources.
  • the CG-UCI, the PUCCH resource, or the PUSCH resource is transmitted by the UE to the base station, and the CG-UCI, the PUCCH resource, or the PUSCH resource carries the information about the duration.
  • the information is used to determine at least one of the followings: a presence of the duration, an absence of the duration, a location of the duration, or a length of the duration.
  • the location of the duration comprises a starting location of the duration.
  • the starting location of the duration is determined by an offset.
  • the location of the duration is relevant to a location of the assistant information transmitted by the UE.
  • the location of the assistant information comprises a slot in which the assistant information is transmitted or a symbol in which the assistant information is transmitted.
  • the symbol in which the assistant information is transmitted further comprising the assistant information is transmitted in a set of symbols, and the symbol is the earliest symbol of the set of symbols, or the symbol is the latest symbol of the set of symbols.
  • the location of the duration is relevant to the location of the assistant information further comprising the location of the duration is after the location of the assistant information by an offset, where the offset comprises a number of slots and/or a number of symbols and/or a number of milliseconds.
  • the offset comprises one or more of slots or symbols.
  • the offset is a number of slots between a start of a first slot and a start of a second slot, where the first slot is a slot in which the CG-UCI, the PUCCH resource, or the PUSCH resource is transmitted, and the start of the second slot is the starting location of the duration.
  • the offset is a number of slots between an end of a first slot and a start of a second slot, where the first slot is a slot in which the CG-UCI, the PUCCH resource, or the PUSCH resource is transmitted, and the start of the second slot is the starting location of the duration.
  • the length of the duration is a number of slots, a number of symbols, or a number of unit time.
  • the unit time comprises millisecond.
  • the duration of the slot depends on a subcarrier spacing of an active bandwidth part (BWP).
  • BWP active bandwidth part
  • a value of the offset and/or a value of the length of the duration is pre-configured by the base station or pre-defined.
  • the CG-UCI, the UCI in the PUCCH resource, the UCI in the PUSCH resource, the RRC in the PUSCH resource, or the MAC- CE in the PUSCH resource comprises an indication field used to indicate a row index, where the row index points to a row of a table, the table comprises more than one row, each row comprises the information used to determine the location of the duration, the offset, and/or the length of the duration.
  • the UCI in the PUCCH resource, the UCI in the PUSCH resource, the RRC in the PUSCH resource, or the MAC-CE in the PUSCH resource comprises a first indication field used to indicate a first row index and a second indication field used to indicate a second row index, where the first row index points to a row of a first table, the second row index points to a row of a second table, the first table comprises more than one row used to determine one of the offset , and the second table comprises more than one row used to determine one of the length of the duration.
  • the table or at least one of the first table and the second table comprises a row with information corresponding to an absence of the duration or the length of the duration equal to zero.
  • the indication field or one of the first indication field and the second indication field comprises 1 bit.
  • a first value of the 1 bit indicates the duration is absent, a second value of the 1 bit indicates the duration is present.
  • the offset and/or the length of the duration is pre-configured or pre-defined.
  • the method further comprises at least one of the followings: wherein the UE does not perform the uplink transmission in at least one resource of the set of resources within a window; wherein the UE performs the uplink transmission in at least one resource of the set of resources within the window; wherein the UE does not expect that the base station performs the downlink transmission in at least one resource of the set of resources within the window; or wherein the UE expects that the base station performs the downlink transmission in at least one resource of the set of resources within the window.
  • the first CG-UCI when the UE transmits a first CG-UCI and a second CG-UCI, the first CG-UCI is before the second CG-UCI.
  • the first CG-UCI provides a first assistant information to determine a first duration
  • the second CG-UCI provides a second assistant information to determine a second duration
  • the first duration and the second duration are aligned.
  • the first duration and the second duration are aligned further comprising the presence or the absence of the first duration and the second duration are aligned.
  • the first duration and the second duration have a same starting location and/or the first duration and the second duration have a same length.
  • the first duration is within the second duration, or the second duration is within the first duration.
  • the second duration is used to update the first duration
  • the second assistant information is used to update the first assistant information.
  • the UE is configured with a first set of CG resources by a first CG configuration and a second set of CG resources by a second CG configuration from the base station.
  • the assistant information in the one CG-UCI when the UE sends the assistant information in one CG-UCI in one CG resource of the first set of CG resources, the assistant information in the one CG-UCI provides information used to determine a third duration.
  • the third duration is applied for the one or more CG resources of the first set of CG resources, or the third duration is applied for the one or more CG resources of the first set of CG resources and the one or more CG resources of the second set of CG resources.
  • the third duration applied for the one or more CG resources of the first set of CG resources means that the UE does not use the one or more CG resources of the first set of CG resources for PUSCH transmission.
  • the UE uses the one or more CG resources of the second set of CG resources for PUSCH transmission.
  • the UE when the assistant information is carried in the PUCCH resource, the UE transmits a first sequence to indicate a presence of the duration, and/or the UE transmits a second sequence to indicate an absence of the duration.
  • the first sequence and/or the second sequence is pre-configured or pre-defined.
  • the PUCCH resource is located at a location separate from the set of CG resources.
  • the assistant information is carried in the PUSCH resource by a MAC-CE or an RRC.
  • the PUSCH resource is located at a location separate from the set of resources, or the PUSCH resource is transmitted in one CG resource of the set of resources.
  • a method of wireless communication by a base station comprises configuring, to a user equipment (UE), a set of resources for transmissions and receiving, from the UE, an assistant information relevant to a resource usage of the set of resources.
  • UE user equipment
  • the transmissions comprise downlink transmissions or uplink transmissions.
  • one of the downlink transmissions comprise at least one of the followings: a physical downlink shared channel (PDSCH), a physical downlink control channel (PDCCH), a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), or a tracking reference signal (TRS).
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • SSB synchronization signal block
  • CSI-RS channel state information reference signal
  • TRS tracking reference signal
  • one of the uplink transmissions comprise at least one of the followings: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a sounding reference signal (SRS), or a physical random access channel (PRACH).
  • PRACH physical random access channel
  • the resource usage comprises at least one of the followings: at least one resource of the set of the resources is used for the transmissions; or at least one resource of the set of resources is not used for the transmissions.
  • the transmissions are configured as periodic transmissions.
  • the set of resources are configured by a radio resource control (RRC), and/or a downlink control information (DCI), and/or a medium access control-control element (MAC-CE), and/or the set of resources are pre-defined.
  • RRC radio resource control
  • DCI downlink control information
  • MAC-CE medium access control-control element
  • the set of resources are for PUSCH transmissions, and the set of resources comprise configured grant (CG) resources.
  • CG configured grant
  • the set of resources are for PUCCH transmissions, and a PUCCH of the PUCCH transmissions carries a scheduling request information.
  • the set of resources are for PDSCH transmissions, and a PDSCH of PDSCH transmissions carries a system information, or the PDSCH is a semi-persistent scheduling (SPS) PDSCH.
  • SPS semi-persistent scheduling
  • the resource usage provides information about a duration in which the base station controls the UE not to use one or more CG resources of the set of resources for PUSCH transmission.
  • the resource usage provides information about a duration in which the base station controls the UE to use one or more CG resources of the set of resources for PUSCH transmission.
  • the assistant information is carried in at least one of the followings: a uplink control information (UCI), a MAC-CE, or an RRC.
  • UCI uplink control information
  • MAC-CE MAC-CE
  • RRC Radio Resource Control
  • the assistant information is carried in the UCI, and the UCI is transmitted in a PUCCH or a PUSCH.
  • the assistant information is carried in a CG-UCI.
  • the information is carried in a CG-UCI, a PUCCH resource, or a PUSCH, where the CG-UCI is transmitted in one CG resource of the set of resources.
  • the CG-UCI, the PUCCH resource, or the PUSCH resource is received by the base station from the UE, and the CG-UCI, the PUCCH resource, or the PUSCH resource carries the information about the duration.
  • the information is used to determine at least one of the followings: a presence of the duration, an absence of the duration, a location of the duration, or a length of the duration.
  • the location of the duration comprises a starting location of the duration.
  • the starting location of the duration is determined by an offset.
  • the location of the duration is relevant to a location of the assistant information transmitted by the UE.
  • the location of the assistant information comprises a slot in which the assistant information is transmitted or a symbol in which the assistant information is transmitted.
  • the symbol in which the assistant information is transmitted further comprising the assistant information is transmitted in a set of symbols, and the symbol is the earliest symbol of the set of symbols, or the symbol is the latest symbol of the set of symbols.
  • the location of the duration is relevant to the location of the assistant information further comprising the location of the duration is after the location of the assistant information by an offset, where the offset comprises a number of slots and/or a number of symbols and/or a number of milliseconds.
  • the offset comprises one or more of slots or symbols.
  • the offset is a number of slots between a start of a first slot and a start of a second slot, where the first slot is a slot in which the CG-UCI, the PUCCH resource, or the PUSCH resource is transmitted, and the start of the second slot is the starting location of the duration.
  • the offset is a number of slots between an end of a first slot and a start of a second slot, where the first slot is a slot in which the CG-UCI, the PUCCH resource, or the PUSCH resource is transmitted, and the start of the second slot is the starting location of the duration.
  • the length of the duration is a number of slots, a number of symbols, or a number of unit time.
  • the unit time comprises millisecond.
  • the duration of the slot depends on a subcarrier spacing of an active bandwidth part (BWP).
  • BWP active bandwidth part
  • a value of the offset and/or a value of the length of the duration is pre-configured by the base station or pre-defined.
  • the UCI in the PUCCH resource, the UCI in the PUSCH resource, the RRC in the PUSCH resource, or the MAC-CE in the PUSCH resource comprises an indication field used to indicate a row index, where the row index points to a row of a table, the table comprises more than one row, each row comprises the information used to determine the location of the duration, the offset, and/or the length of the duration.
  • the UCI in the PUCCH resource, the UCI in the PUSCH resource, the RRC in the PUSCH resource, or the MAC-CE in the PUSCH resource comprises a first indication field used to indicate a first row index and a second indication field used to indicate a second row index, where the first row index points to a row of a first table, the second row index points to a row of a second table, the first table comprises more than one row used to determine one of the offset , and the second table comprises more than one row used to determine one of the length of the duration.
  • the table or at least one of the first table and the second table comprises a row with information corresponding to an absence of the duration or the length of the duration equal to zero.
  • the indication field or one of the first indication field and the second indication field comprises 1 bit.
  • a first value of the 1 bit indicates the duration is absent, a second value of the 1 bit indicates the duration is present.
  • the offset and/or the length of the duration is pre-configured or pre-defined.
  • the method further comprises at least one of the followings: wherein the base station controls the UE not to perform the uplink transmission in at least one resource of the set of resources within a window; wherein the base station controls the UE to perform the uplink transmission in at least one resource of the set of resources within the window; wherein the base station controls the UE not to expect that the base station performs the downlink transmission in at least one resource of the set of resources within the window; or wherein the base station controls the UE to expect that the base station performs the downlink transmission in at least one resource of the set of resources within the window.
  • the base station when the base station receives a first CG-UCI and a second CG-UCI, the first CG-UCI is before the second CG-UCI.
  • the first CG-UCI provides a first assistant information to determine a first duration
  • the second CG-UCI provides a second assistant information to determine a second duration
  • the first duration and the second duration are aligned.
  • the first duration and the second duration are aligned further comprising the presence or the absence of the first duration and the second duration are aligned.
  • the first duration and the second duration have a same starting location and/or the first duration and the second duration have a same length.
  • the first duration is within the second duration, or the second duration is within the first duration.
  • the second duration is used to update the first duration
  • the second assistant information is used to update the first assistant information.
  • the base station is configured to configure, to the UE, a first set of CG resources by a first CG configuration and a second set of CG resources by a second CG configuration.
  • the assistant information in the one CG-UCI when the base station receives the assistant information in one CG-UCI in one CG resource of the first set of CG resources, the assistant information in the one CG-UCI provides information used to determine a third duration.
  • the third duration is applied for the one or more CG resources of the first set of CG resources, or the third duration is applied for the one or more CG resources of the first set of CG resources and the one or more CG resources of the second set of CG resources.
  • the third duration applied for the one or more CG resources of the first set of CG resources means that the base station controls the UE not to use the one or more CG resources of the first set of CG resources for PUSCH transmission.
  • the base station controls the UE to use the one or more CG resources of the second set of CG resources for PUSCH transmission.
  • the base station when the assistant information is carried in the PUCCH resource, the base station receives a first sequence to indicate a presence of the duration, and/or the base station receives a second sequence to indicate an absence of the duration.
  • the first sequence and/or the second sequence is pre-configured or pre-defined.
  • the PUCCH resource is located at a location separate from the set of CG resources.
  • the assistant information is carried in the PUSCH resource by a MAC-CE or an RRC.
  • the PUSCH resource is located at a location separate from the set of resources, or the PUSCH resource is transmitted in one CG resource of the set of resources.
  • a user equipment comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver.
  • the processor is configured to perform the above method.
  • a base station comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver.
  • the processor is configured to perform the above method.
  • 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 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. 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 an assistant information relevant to a resource usage of a set of resources for transmissions according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram illustrating an assistant information relevant to a resource usage of a set of resources for transmissions according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram illustrating an assistant information relevant to a resource usage of a set of resources for transmissions according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram illustrating an assistant information relevant to a resource usage of a set of resources for transmissions according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram illustrating an assistant information relevant to a resource usage of a set of resources for transmissions according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram illustrating an assistant information relevant to a resource usage of a set of resources for transmissions according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram illustrating an assistant information relevant to a resource usage of a set of resources for transmissions according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram illustrating an assistant information relevant a resource usage a set of resources for transmissions according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic diagram illustrating an assistant information relevant to a resource usage a set of resources for transmissions according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic diagram illustrating an assistant information relevant to a resource usage of a set of resources for transmissions according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic diagram illustrating an assistant information relevant to resource usage of a set of resources for transmissions according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic diagram illustrating an assistant information relevant to a resource usage of a set of resources for transmissions according to an embodiment of the present disclosure.
  • FIG. 16 is a block diagram of a system for wireless communication according to an embodiment of the present disclosure.
  • FIG. 1 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 processor 11 is configured, by the base station 20, with a set of resources for transmissions, and the transceiver 13 is configured to provide, to the base station 20, an assistant information relevant to a resource usage of the set of resources. This can provide a method that allows the base station to reduce a cell power consumption, provide a good communication performance, and/or provide high reliability.
  • the processor 21 configures to the UE 10, a set of resources for transmissions, and the transceiver 23 is configured to receive, from the UE 10, an assistant information relevant to a resource usage of the set of resources. This can provide a method that allows the base station to reduce a cell power consumption, provide a good communication performance, and/or provide high reliability.
  • FIG. 2 illustrates a method 200 of wireless communication by a user equipment (UE) according to an embodiment of the present disclosure.
  • the method 200 includes: a block 202, being configured, by a base station, with a set of resources for transmissions, and a block 204, providing, to the base station, an assistant information relevant to a resource usage of the set of resources. This can provide a method that allows the base station to reduce a cell power consumption, provide a good communication performance, and/or provide high reliability.
  • FIG. 3 illustrates a method 300 of wireless communication by a base station according to an embodiment of the present disclosure.
  • the method 300 includes: a block 302, configuring, to a user equipment (UE), a set of resources for transmissions, and a block 304, receiving, from the UE, an assistant information relevant to a resource usage of the set of resources.
  • UE user equipment
  • a block 304 receiving, from the UE, an assistant information relevant to a resource usage of the set of resources.
  • the transmissions comprise downlink transmissions or uplink transmissions.
  • one of the downlink transmissions comprise at least one of the followings: a physical downlink shared channel (PDSCH), a physical downlink control channel (PDCCH), a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), or a tracking reference signal (TRS).
  • one of the uplink transmissions comprise at least one of the followings: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a sounding reference signal (SRS), or a physical random access channel (PRACH).
  • the resource usage comprises at least one of the followings: at least one resource of the set of the resources is used for the transmissions; or at least one resource of the set of resources is not used for the transmissions.
  • the transmissions are configured as periodic transmissions.
  • the set of resources are configured by a radio resource control (RRC), and/or a downlink control information (DCI), and/or a medium access control-control element (MAC-CE), and/or the set of resources are predefined.
  • the set of resources are for PUSCH transmissions, and the set of resources comprise configured grant (CG) resources.
  • the set of resources are for PUCCH transmissions, and a PUCCH of the PUCCH transmissions carries a scheduling request information.
  • the set of resources are for PDSCH transmissions, and a PDSCH of PDSCH transmissions carries a system information, or the PDSCH is a semi- persistent scheduling (SPS) PDSCH.
  • the resource usage provides information about a duration in which the UE does not use one or more CG resources of the set of resources for PUSCH transmission.
  • the resource usage provides information about a duration in which the UE uses one or more CG resources of the set of resources for PUSCH transmission.
  • the assistant information is carried in at least one of the followings: a uplink control information (UCI), a MAC-CE, or an RRC.
  • the assistant information is carried in the UCI, and the UCI is transmitted in a PUCCH or a PUSCH.
  • the assistant information is carried in a CG-UCI.
  • the information is carried in a CG-UCI, a PUCCH resource, or a PUSCH, where the CG-UCI is transmitted in one CG resource of the set of resources.
  • the CG-UCI, the PUCCH resource, or the PUSCH resource is transmitted by the UE to the base station, and the CG-UCI, the PUCCH resource, or the PUSCH resource carries the information about the duration.
  • the information is used to determine at least one of the followings: a presence of the duration, an absence of the duration, a location of the duration, or a length of the duration.
  • the location of the duration comprises a starting location of the duration. In some embodiments, the starting location of the duration is determined by an offset. In some embodiments, the location of the duration is relevant to a location of the assistant information transmitted by the UE.
  • the location of the assistant information comprises a slot in which the assistant information is transmitted or a symbol in which the assistant information is transmitted.
  • the symbol in which the assistant information is transmitted further comprising the assistant information is transmitted in a set of symbols, and the symbol is the earliest symbol of the set of symbols, or the symbol is the latest symbol of the set of symbols.
  • the location of the duration is relevant to the location of the assistant information further comprising the location of the duration is after the location of the assistant information by an offset, where the offset comprises a number of slots and/or a number of symbols and/or a number of milliseconds. In some embodiments, the offset comprises one or more of slots or symbols.
  • the offset is a number of slots between a start of a first slot and a start of a second slot, where the first slot is a slot in which the CG-UCI, the PUCCH resource, or the PUSCH resource is transmitted, and the start of the second slot is the starting location of the duration.
  • the offset is a number of slots between an end of a first slot and a start of a second slot, where the first slot is a slot in which the CG-UCI, the PUCCH resource, or the PUSCH resource is transmitted, and the start of the second slot is the starting location of the duration.
  • the length of the duration is a number of slots, a number of symbols, or a number of unit time.
  • the unit time comprises millisecond.
  • the duration of the slot depends on a subcarrier spacing of an active bandwidth part (BWP).
  • a value of the offset and/or a value of the length of the duration is pre-configured by the base station or pre-defined.
  • the UCI in the PUCCH resource, the UCI in the PUSCH resource, the RRC in the PUSCH resource, or the MAC-CE in the PUSCH resource comprises an indication field used to indicate a row index, where the row index points to a row of a table, the table comprises more than one row, each row comprises the information used to determine the location of the duration, the offset, and/or the length of the duration.
  • the UCI in the PUCCH resource, the UCI in the PUSCH resource, the RRC in the PUSCH resource, or the MAC-CE in the PUSCH resource comprises a first indication field used to indicate a first row index and a second indication field used to indicate a second row index, where the first row index points to a row of a first table, the second row index points to a row of a second table, the first table comprises more than one row used to determine one of the offset , and the second table comprises more than one row used to determine one of the length of the duration.
  • the table or at least one of the first table and the second table comprises a row with information corresponding to an absence of the duration or the length of the duration equal to zero.
  • the indication field or one of the first indication field and the second indication field comprises 1 bit.
  • a first value of the 1 bit indicates the duration is absent, a second value of the 1 bit indicates the duration is present.
  • the offset and/or the length of the duration is pre-configured or predefined.
  • the method further comprises at least one of the followings: wherein the UE does not perform the uplink transmission in at least one resource of the set of resources within a window; wherein the UE performs the uplink transmission in at least one resource of the set of resources within the window; wherein the UE does not expect that the base station performs the downlink transmission in at least one resource of the set of resources within the window; or wherein the UE expects that the base station performs the downlink transmission in at least one resource of the set of resources within the window.
  • the first CG-UCI when the UE transmits a first CG-UCI and a second CG-UCI, the first CG-UCI is before the second CG-UCI.
  • the first CG-UCI provides a first assistant information to determine a first duration
  • the second CG-UCI provides a second assistant information to determine a second duration.
  • the first duration and the second duration are aligned.
  • the first duration and the second duration are aligned further comprising the presence or the absence of the first duration and the second duration are aligned.
  • the first duration and the second duration have a same starting location and/or the first duration and the second duration have a same length.
  • the first duration is within the second duration, or the second duration is within the first duration.
  • the second duration is used to update the first duration, and/or the second assistant information is used to update the first assistant information.
  • the UE is configured with a first set of CG resources by a first CG configuration and a second set of CG resources by a second CG configuration from the base station. In some embodiments, when the UE sends the assistant information in one CG-UCI in one CG resource of the first set of CG resources, the assistant information in the one CG-UCI provides information used to determine a third duration.
  • the third duration there are one or more CG resources of the first set of CG resources and one or more CG resources of the second of CG resources. In some embodiments, the third duration is applied for the one or more CG resources of the first set of CG resources, or the third duration is applied for the one or more CG resources of the first set of CG resources and the one or more CG resources of the second set of CG resources.
  • the third duration applied for the one or more CG resources of the first set of CG resources means that the UE does not use the one or more CG resources of the first set of CG resources for PUSCH transmission.
  • the UE uses the one or more CG resources of the second set of CG resources for PUSCH transmission.
  • the assistant information is carried in the PUCCH resource, the UE transmits a first sequence to indicate a presence of the duration, and/or the UE transmits a second sequence to indicate an absence of the duration.
  • the first sequence and/or the second sequence is pre-configured or pre-defined.
  • the PUCCH resource is located at a location separate from the set of CG resources.
  • the assistant information is carried in the PUSCH resource by a MAC-CE or an RRC.
  • the PUSCH resource is located at a location separate from the set of resources, or the PUSCH resource is transmitted in one CG resource of the set of resources.
  • 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.
  • some examples in the present disclosure can be applied for NB-IoT system, the PDCCH is equivalent to NB-PDCCH (NPDCCH) and the PDSCH is equivalent to NB- PDSCH (NPDSCH).
  • the serving cell may configure one or more PUSCH resources, and the UE may transmit one or more PUSCH transmissions in the one or more PUSCH resources.
  • the one or more PUSCH resources can be called one or more configured grant (CG) PUSCH resources or can be also called CG resources.
  • CG configured grant
  • the serving cell does not have a priori or does not predetermine whether there is a PUSCH transmission in a given CG resource, the serving cell needs to blindly detect the presence of the CG resource. In this case, if the UE does not transmit the PUSCH transmission, it will result in a network power consumption waste. In the following, some embodiments present a method to reduce the network power consumption waste.
  • the UE may transmit one or more PUSCH transmissions in the CG resources only if there is need for transmission.
  • the network may waste the power to detect the presence of the PUSCH in the configured CG resources.
  • the UE may provide an assistant information to the network and the assistant information can be relevant to a CG resource usage information.
  • the CG resource usage information may provide information about a duration in which the UE does not use the CG resource for PUSCH transmission. With this information, the network may skip the blind detection on the CG resources within the duration.
  • the information may be about a duration in which the UE may transmit PUSCH.
  • the network may need to perform blind detection on the CG resources within the duration. This may let network to precisely determine when to perform the blind detection, leading to reduced power consumption waste.
  • the UE assistant information carried in a CG-UCI where the CG-UCI is transmitted in a CG resource as illustrated in FIG. 5.
  • the CG-UCI is transmitted by a UE to the network, and the CG-UCI carries the information about a duration.
  • the information is used to determine a location of the duration and/or a length of the duration.
  • a UE transmits a CG-UCI in a CG resource, and the CG-UCI contains the information about an offset and/or a duration length.
  • the offset is used to determine a duration starting location.
  • the offset may be a number of slots or symbols. In some examples, as illustrated in FIG.
  • the offset is a number of slots between the start of a first slot and the start of a second slot, where the first slot is the slot in which the CG-UCI is transmitted, and the start of the second slot is the starting location of the duration.
  • the offset is between the end of the first slot and the start of the second slot as illustrated in FIG. 7.
  • the duration length is a number of slots or a number of unit time, where the unit time may be millisecond.
  • the duration of the slot depends on the active BWP subcarrier spacing.
  • the value of the offset and/or the duration length are pre-configured by the network or predefined.
  • the CG-UCI comprises an indication field, which indicates a row index, where the index points to a row of a table, where the table contains more than one row, and each row contains information relevant to the duration location, offset, and/or duration length.
  • the table contains a row with information about that the absence of the duration or the duration length is zero.
  • the indication field contains 1 bit. A first value of the 1-bit indicates the duration is absent and a second value of the 1-bit indicates the duration is present and the location of the duration is determined from the offset and/or the duration length.
  • the CG-UCI comprises a first indication field used to indicate a first row index and a second indication field used to indicate a second row index, where the first row index points to a row of a first table, the second row index points to a row of a second table, the first table comprises more than one row used to determine one of the offset , and the second table comprises more than one row used to determine one of the length of the duration.
  • the table contains a row with information about that the absence of the duration or the duration length is zero.
  • the indication field or one of the first indication field and the second indication field comprises 1 bit. In some examples, a first value of the 1 bit indicates the duration is absent, a second value of the 1 bit indicates the duration is present.
  • the offset and/or the length of the duration is pre-configured or pre-defined.
  • CG-UCI1 when a UE transmits a first CG-UCI (CG-UCI1) and a second CG- UCI (CG-UCI2), the CG-UCI1 is before the CG-UCI2.
  • the CG-UCI1 provides UE assistant information to determine a first duration (duration 1) and the CG-UCI2 provides UE assistant information to determine a second duration (duration 2).
  • the first duration and the second duration have a same starting location.
  • the first duration and the second duration have a same length.
  • the first duration is within the second duration.
  • the second duration is within the first duration.
  • the duration location and duration length can be updated by a later CG-UCI.
  • the duration 2 can update the duration 1.
  • the CG-UCI2 can update CG- UCI 1.
  • the UE may be configured a first set of CG resources by a first CG configuration and a second set of CG resources by a second CG configuration as illustrated in FIG. 12.
  • the UE sends a CG-UCI in a CG resource of the first set of CG resources and the CG-UCI provides information that is used to determine a duration. Within the duration, there are CG resource of the first set and CG resources of the second set.
  • the duration is applied for the CG resources of the first set, i.e., if the UE does not transmit PUSCH in the CG resources within the duration, then the duration applied for the CG resource of the first set means that the UE does not transmit PUSCH in the CG resources of the first set. It implies that the UE may transmit the PUSCH in the CG resources of the second set.
  • the duration is applied for the CG resources of the first and the second set.
  • the UE assistant information is carried in a PUCCH resource, and the UE transmits a first sequence to indicate the presence of a duration.
  • the first and/or the second sequences are pre-configured or pre-defined.
  • the PUCCH resource is located at a location separate from the set of CG resources.
  • the UE assistant information is carried in a PUSCH by MAC-CE or RRC.
  • the PUSCH resource is located at a location separate from the set of resources.
  • the PUSCH resource is transmitted in one CG resource of the set of resources.
  • FIG. 16 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. 16 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 single-core or multicore 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 multi-mode 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 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. Moreover, 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.

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

Abstract

L'invention divulgue un appareil et un procédé de communication sans fil. Le procédé exécuté par un équipement utilisateur (UE) comprend la configuration, par une station de base, avec un ensemble de ressources pour des transmissions et la fourniture, à la station de base, d'informations d'assistant pertinentes pour une utilisation des ressources de l'ensemble de ressources. Les transmissions comprennent des transmissions en liaison descendante ou des transmissions en liaison montante.
PCT/IB2022/000305 2022-04-22 2022-04-22 Appareil et procédé de communication sans fil WO2023203361A1 (fr)

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Citations (6)

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US20190313379A1 (en) * 2016-09-30 2019-10-10 Lg Electronics Inc. Method and apparatus for transmitting terminal support data for sps in wireless communication system
US20210058948A1 (en) * 2018-04-28 2021-02-25 Beijing Xiaomi Mobile Software Co., Ltd. Uplink transmission method and apparatus
EP3823378A1 (fr) * 2018-08-03 2021-05-19 Huawei Technologies Co., Ltd. Procédé de rapport d'état d'utilisation de ressource et dispositif de communication
US20210160829A1 (en) * 2019-11-22 2021-05-27 Samsung Electronics Co., Ltd. Method and apparatus for grant-free data transmission in wireless communication system
WO2021142726A1 (fr) * 2020-01-16 2021-07-22 Oppo广东移动通信有限公司 Procédé et appareil de rapport d'informations
WO2022029112A1 (fr) * 2020-08-07 2022-02-10 Sony Group Corporation Procédés et dispositifs de communication

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Publication number Priority date Publication date Assignee Title
US20190313379A1 (en) * 2016-09-30 2019-10-10 Lg Electronics Inc. Method and apparatus for transmitting terminal support data for sps in wireless communication system
US20210058948A1 (en) * 2018-04-28 2021-02-25 Beijing Xiaomi Mobile Software Co., Ltd. Uplink transmission method and apparatus
EP3823378A1 (fr) * 2018-08-03 2021-05-19 Huawei Technologies Co., Ltd. Procédé de rapport d'état d'utilisation de ressource et dispositif de communication
US20210160829A1 (en) * 2019-11-22 2021-05-27 Samsung Electronics Co., Ltd. Method and apparatus for grant-free data transmission in wireless communication system
WO2021142726A1 (fr) * 2020-01-16 2021-07-22 Oppo广东移动通信有限公司 Procédé et appareil de rapport d'informations
US20220322422A1 (en) * 2020-01-16 2022-10-06 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for information reporting, terminal device, and network device
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