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WO2023184094A1 - Procédé et appareil de transmission d'informations de commande de liaison descendante, et support de stockage lisible - Google Patents

Procédé et appareil de transmission d'informations de commande de liaison descendante, et support de stockage lisible Download PDF

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Publication number
WO2023184094A1
WO2023184094A1 PCT/CN2022/083435 CN2022083435W WO2023184094A1 WO 2023184094 A1 WO2023184094 A1 WO 2023184094A1 CN 2022083435 W CN2022083435 W CN 2022083435W WO 2023184094 A1 WO2023184094 A1 WO 2023184094A1
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WIPO (PCT)
Prior art keywords
duration
user equipment
carrier
preparation
downlink control
Prior art date
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PCT/CN2022/083435
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English (en)
Chinese (zh)
Inventor
周锐
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.)
Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to PCT/CN2022/083435 priority Critical patent/WO2023184094A1/fr
Priority to CN202280000869.9A priority patent/CN115066959A/zh
Publication of WO2023184094A1 publication Critical patent/WO2023184094A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present disclosure relates to wireless communication technology, and in particular, to a method, device and readable storage medium for transmitting downlink control information.
  • the fifth generation (5G) communication system supports vehicle to everything (V2X) communication.
  • V2X communication is a sidelink transmission technology.
  • a terminal device does not need to be forwarded by a network device. Communicates directly with another end device, resulting in higher spectral efficiency and lower transmission latency.
  • V2X can provide two communication interfaces, called Uu interface (cellular communication interface) and PC5 interface (direct communication interface).
  • the present disclosure provides a method, device and readable storage medium for receiving downlink control information.
  • the first aspect provides a method for processing downlink control information, which is executed by the first user equipment.
  • the method includes:
  • the switching capability is the capability to switch from the new air interface NR carrier to the sidelink SL carrier;
  • the physical sidelink shared channel PSSCH is transmitted to the second user equipment.
  • the first user equipment reports its switching capability from the new air interface NR carrier to the sidelink SL carrier to the network device, so that the network device clearly knows the switching capability of the first user equipment, and configures the first user equipment with The first duration matches the switching capability of the first user equipment, so that various first user devices with different switching capabilities are configured with a reasonable first duration, thereby improving network resource utilization.
  • the first duration is positively correlated with the switching capability.
  • the switching capability includes a second duration of switching from the NR carrier to the sidelink SL carrier.
  • the first preparation time is longer than the first preparation time
  • the first preparation time is the sum of the second preparation time and the second time
  • the second preparation time is the user equipment PSSCH preparation duration when camping on the sidelink carrier.
  • the first preparation time is calculated according to the following formula:
  • T proc,switch h (N 2 +d 2,1 )(2048+144) ⁇ 2 - ⁇ ⁇ T C +T SLswitch
  • T proc,switch is the first preparation duration
  • the value of N 2 is the number of OFDM symbols
  • the value of d 2,1 is 1
  • the value of ⁇ is 64
  • ⁇ is the corresponding value of the subcarrier interval supported by the carrier
  • T C is the basic time unit of NR
  • T SLswitch is the second duration.
  • the second aspect provides a method for processing downlink control information, which is executed by a network device. The method includes:
  • the switching capability is the capability to switch from the new air interface NR carrier to the sidelink carrier;
  • a physical sidelink shared channel PSSCH is transmitted to the second user equipment after a period of time.
  • the first user equipment reports its switching capability from the new air interface NR carrier to the sidelink SL carrier to the network device, so that the network device clearly knows the switching capability of the first user equipment, and configures the first user equipment with The first duration matches the switching capability of the first user equipment, so that various first user devices with different switching capabilities are configured with a reasonable first duration, thereby improving network resource utilization.
  • the method further includes:
  • No sidelink transmission scheduling is performed on the first user equipment within the period corresponding to the first duration.
  • the first duration is positively correlated with the switching capability.
  • the switching capability includes a second duration of switching from the NR carrier to the sidelink SL carrier.
  • determining the first duration according to the switching capability includes:
  • the first preparation duration to be the sum of the second preparation duration and the second duration, and the second preparation duration is the PSSCH preparation duration when the first user equipment is camping on a sidelink carrier;
  • a first duration greater than the first preparation duration is determined based on the first preparation duration.
  • the first preparation time is calculated according to the following formula:
  • T proc, switch (N 2 +d 2, 1 ) (2048+144) ⁇ 2 - ⁇ ⁇ T C +T SLswitch
  • T proc,switch is the first preparation duration
  • the value of N 2 is the number of OFDM symbols
  • the value of d 2,1 is 1
  • the value of ⁇ is 64
  • ⁇ is the corresponding value of the subcarrier interval supported by the carrier
  • T C is the basic time unit of NT
  • T SLswitch is the second duration.
  • a communication device may be used to perform the steps performed by the user equipment in the above-mentioned first aspect or any possible design of the first aspect.
  • the user equipment can implement each function in the above methods through a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication device may include a transceiver module configured to send a switching capability to a network device, where the switching capability is switching from a new air interface NR carrier to a sidelink SL carrier. Capability; receiving downlink control information sent by a network device, where the downlink control information includes information indicating a first duration; the first duration is determined based on the switching capability; receiving the first step of the downlink control information After the duration, the physical sidelink shared channel PSSCH is transmitted to the second user equipment.
  • a transceiver module configured to send a switching capability to a network device, where the switching capability is switching from a new air interface NR carrier to a sidelink SL carrier. Capability; receiving downlink control information sent by a network device, where the downlink control information includes information indicating a first duration; the first duration is determined based on the switching capability; receiving the first step of the downlink control information After the duration, the physical sidelink shared channel PSSCH is transmitted to the second user equipment.
  • the first duration is positively correlated with the switching capability.
  • the switching capability includes a second duration of switching from the NR carrier to the sidelink SL carrier.
  • the first preparation time is longer than the first preparation time
  • the first preparation time is the sum of the second preparation time and the second time
  • the second preparation time is the user equipment PSSCH preparation duration when camping on the sidelink carrier.
  • the first preparation time is calculated according to the following formula:
  • T proc, switch (N 2 +d 2,1 )(2048+144) ⁇ 2 - ⁇ ⁇ T C +T SLswitch
  • T proc,switch is the first preparation duration
  • the value of N 2 is the number of OFDM symbols
  • the value of d 2,1 is 1
  • the value of ⁇ is 64
  • ⁇ is the corresponding value of the subcarrier interval supported by the carrier
  • T C is the basic time unit of NR
  • T SLswitch is the second duration.
  • a fourth aspect provides a communication device.
  • the communication device may be used to perform the steps performed by the user equipment in the above-mentioned second aspect or any possible design of the second aspect.
  • the user equipment can implement each function in the above methods through a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication device may include a transceiver module and a processing module.
  • a transceiver module configured to receive a switching capability sent by the first user equipment, where the switching capability is the capability of switching from a new air interface NR carrier to a sidelink carrier;
  • a processing module configured to determine a first duration according to the switching capability
  • the transceiver module is also configured to send downlink control information to the first user equipment, where the downlink control information includes information indicating a first duration; the first duration is used by the first user equipment when receiving After the first duration of the downlink control information, the physical sidelink shared channel PSSCH is transmitted to the second user equipment.
  • the processing module is further configured to not perform sidelink transmission scheduling on the first user equipment within a period corresponding to the first duration.
  • the first duration is positively correlated with the switching capability.
  • the switching capability includes a second duration of switching from the NR carrier to the sidelink SL carrier.
  • the processing module is further configured to determine the first preparation duration as the sum of the second preparation duration and the second duration, and the second preparation duration is when the first user equipment PSSCH preparation duration when parking on a sidelink carrier; and is further configured to determine a first duration that is greater than the first preparation duration based on the first preparation duration.
  • the first preparation time is calculated according to the following formula:
  • T proc, switch (N 2 +d 2, 1 ) (2048+144) ⁇ 2 - ⁇ ⁇ T C +T SLswitch
  • T proc,switch is the first preparation duration
  • the value of N 2 is the number of OFDM symbols
  • the value of d 2,1 is 1
  • the value of ⁇ is 64
  • ⁇ is the corresponding value of the subcarrier interval supported by the carrier
  • T C is the basic time unit of NR
  • T SLswitch is the second duration.
  • a communication device including a processor and a memory; the memory is used to store a computer program; the processor is used to execute the computer program to realize the first aspect or any possibility of the first aspect. the design of.
  • a communication device including a processor and a memory; the memory is used to store a computer program; the processor is used to execute the computer program to realize the second aspect or any possibility of the second aspect. the design of.
  • a computer-readable storage medium In a seventh aspect, a computer-readable storage medium is provided. Instructions (or computer programs, programs) are stored in the computer-readable storage medium. When called and executed on a computer, the computer is caused to execute the first aspect. or any possible design of the first aspect.
  • a computer-readable storage medium is provided. Instructions (or computer programs, programs) are stored in the computer-readable storage medium. When called and executed on a computer, the computer is caused to execute the second aspect. Or any possible design of the second aspect.
  • Figure 1 is a schematic diagram of a wireless communication system architecture provided by an embodiment of the present disclosure
  • Figure 2 is a schematic diagram of a method of transmitting downlink control information according to an exemplary embodiment
  • Figure 3 is a flow chart of a method of transmitting downlink control information according to an exemplary embodiment
  • Figure 4 is a flow chart of a method of transmitting downlink control information according to an exemplary embodiment
  • Figure 5 is a structural diagram of a device for transmitting downlink control information according to an exemplary embodiment
  • Figure 6 is a structural diagram of a device for transmitting downlink control information according to an exemplary embodiment
  • Figure 7 is a structural diagram of a device for transmitting downlink control information according to an exemplary embodiment
  • Figure 8 is a structural diagram of a device for transmitting downlink control information according to an exemplary embodiment.
  • first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other.
  • first information may also be called second information, and similarly, the second information may also be called first information.
  • the words "if” and “if” as used herein may be interpreted as “when” or “when” or “in response to determining.”
  • a method for transmitting downlink control information can be applied to a wireless communication system 100, which may include but is not limited to a network device 101 and a user equipment 102.
  • the user equipment 102 is configured to support carrier aggregation, and the user equipment 102 can be connected to multiple carrier units of the network device 101, including a primary carrier unit and one or more secondary carrier units.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • WiMAX global Internet microwave access
  • CRAN cloud radio access network
  • 5G fifth generation
  • 5G new wireless (new radio, NR) communication system
  • PLMN public land mobile network
  • the user equipment 102 shown above can be a user equipment (UE), a terminal, an access terminal, a terminal unit, a terminal station, a mobile station (MS), a remote station, a remote terminal, a mobile terminal ( mobile terminal), wireless communication equipment, terminal agent or user equipment, etc.
  • the user equipment 102 may have a wireless transceiver function, which can communicate (such as wireless communication) with one or more network devices 101 of one or more communication systems, and accept network services provided by the network device 101.
  • the network device 101 Including but not limited to the base station shown in the figure.
  • the user equipment 102 can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a device with Handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, user equipment in future 5G networks or user equipment in future evolved PLMN networks, etc.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • the network device 101 may be an access network device (or access network site).
  • access network equipment refers to equipment that provides network access functions, such as wireless access network (radio access network, RAN) base stations and so on.
  • Network equipment may specifically include base station (BS) equipment, or include base station equipment and wireless resource management equipment used to control base station equipment, etc.
  • the network equipment may also include relay stations (relay equipment), access points, and base stations in future 5G networks, base stations in future evolved PLMN networks, or NR base stations, etc.
  • Network devices can be wearable devices or vehicle-mounted devices.
  • the network device may also be a communication chip with a communication module.
  • the network equipment 101 includes but is not limited to: the next generation base station (gnodeB, gNB) in 5G, the evolved node B (evolved node B, eNB) in the LTE system, the radio network controller (radio network controller, RNC), Node B (NB) in the WCDMA system, wireless controller under the CRAN system, base station controller (BSC), base transceiver station (BTS) in the GSM system or CDMA system, home Base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (baseband unit, BBU), transmission point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP) or mobile switching center, etc.
  • gnodeB next generation base station
  • gNB next generation base station
  • gNB next generation base station
  • gNB next generation base station
  • gNB next generation base station
  • gNB next generation base station
  • gNB next generation base station
  • gNB next generation base station
  • the sending end of the sidelink can use the transmission resources of the data channel to transmit the control channel.
  • the transmitter of the sidelink can use the transmission resources of the physical sidelink shared channel (PSSCH) to transmit the physical sidelink control channel (PSCCH).
  • PSSCH physical sidelink shared channel
  • Embodiments of the present disclosure provide a method for transmitting downlink control information.
  • Figure 2 is a flow chart of a method for transmitting downlink control information according to an exemplary embodiment. As shown in Figure 2, the method includes:
  • Step S201 The first user equipment sends the switching capability to the network device, where the switching capability is the capability to switch from the new air interface NR carrier to the sidelink SL carrier;
  • Step S202 The network device determines the first time length T sL according to the handover capability.
  • Step S203 The network device sends downlink control information to the first user equipment, where the downlink control information includes information indicating the first duration T sL .
  • Step S204 After receiving the first duration T sL of the downlink control information, the first user equipment transmits a physical sidelink shared channel (PSSCH) to the second user equipment.
  • PSSCH physical sidelink shared channel
  • the switching capability includes a second duration of switching from a new air interface NR carrier to a sidelink SL carrier. .
  • the switching capability is a second duration of switching from a new air interface NR carrier to a sidelink SL carrier.
  • the first duration T sL is positively correlated with the switching capability. The greater the switching capability, the greater the first duration T sL .
  • the first duration T sL is greater than the first preparation duration
  • the first preparation duration is the sum of the second preparation duration and the second duration
  • the second preparation duration is the The PSSCH preparation duration when the user equipment is camping on the sidelink carrier; wherein, by making the first duration T sL greater than the first preparation duration, it is ensured that the user equipment has sufficient preparation time to complete PSSCH preparation and handover.
  • the second preparation duration is T proc , which is used to represent the PSSCH preparation duration when the first user equipment is camping on the SL carrier, that is, the PSSCH preparation duration without carrier switching.
  • the second preparation duration is T proc , which is Calculated according to formula (1):
  • T proc (N 2 +d 2,1 )(2048+144) ⁇ 2 - ⁇ ⁇ T C (1)
  • T proc is the second preparation time
  • ⁇ is the corresponding value of SCS supported by the carrier
  • N 2 is determined from Table 1
  • the value of N 2 is the number of OFDM symbols
  • the value of d 2,1 is 1
  • the value of ⁇ With a value of 64, T C is the base time unit of NR.
  • the first preparation time T proc,switch is the sum of the second preparation time T proc and the second time T SLswitch .
  • the second duration T SLswitch is used to indicate the switching duration of the first user equipment from the NR carrier to the sidelink SL carrier. Therefore, the first preparation duration T proc,switch is used to indicate that the first user equipment switches from the NR carrier to the sidelink SL carrier.
  • the first preparation time T proc, switch is calculated according to formula (2):
  • T proc, switch (N 2 +d 2,1 )(2048+144) ⁇ 2 - ⁇ ⁇ T C +T SLswitch (2)
  • the first user equipment reports its switching capability from the new air interface NR carrier to the sidelink SL carrier to the network device, so that the network device clearly knows the switching capability of the first user equipment and provides the first user equipment with the switching capability.
  • this method further includes: the network device does not schedule sidelink transmission for the first user equipment during the period corresponding to the first duration T sL , thereby avoiding premature scheduling by the network device. Side chain transmission and the first user equipment cannot complete preparation of PSSCH in time due to increased preparation time.
  • Embodiments of the present disclosure provide a method for transmitting downlink control information.
  • the method includes:
  • the first user equipment sends the second duration of switching from the new air interface NR carrier to the sidelink SL carrier to the network equipment;
  • the network device determines the first duration T sL according to the second duration.
  • the network device sends downlink control information to the first user equipment, where the downlink control information includes information indicating the first duration T sL .
  • the first user equipment After receiving the first duration T sL of the downlink control information, the first user equipment transmits the PSSCH to the second user equipment.
  • Embodiments of the present disclosure provide a method for processing downlink control information, which is executed by a first user equipment.
  • Figure 3 is a flow chart of a method for receiving paging control information according to an exemplary embodiment. As shown in Figure 3 As shown, the method includes:
  • Step S301 Send the switching capability to the network device, where the switching capability is the capability to switch from the new air interface NR carrier to the sidelink SL carrier;
  • Step S302 Receive downlink control information sent by the network device, where the downlink control information includes information indicating a first duration T sL ; the first duration T sL is determined based on the handover capability;
  • Step S303 After receiving the first duration T sL of the downlink control information, transmit the physical sidelink shared channel PSSCH to the second user equipment.
  • the switching capability includes a second duration of switching from a new air interface NR carrier to a sidelink SL carrier.
  • the switching capability is a second duration of switching from a new air interface NR carrier to a sidelink SL carrier.
  • the first duration T sL is positively correlated with the switching capability. The greater the switching capability, the greater the first duration T sL .
  • the first duration T sL is greater than the first preparation duration
  • the first preparation duration is the sum of the second preparation duration and the second duration
  • the second preparation duration is the The PSSCH preparation duration when the user equipment is camping on the sidelink carrier; wherein, by making the first duration T sL greater than the first preparation duration, it is ensured that the user equipment has sufficient preparation time to complete PSSCH preparation and handover.
  • the second preparation time is T proc
  • T proc is calculated according to the above formula (1).
  • the first preparation time is T proc,switch , and T proc,switch is calculated according to the above formula (2).
  • the first user equipment reports its switching capability from the new air interface NR carrier to the sidelink SL carrier to the network device, so that the network device clearly knows the switching capability of the first user equipment and provides the first user equipment with the switching capability.
  • Embodiments of the present disclosure provide a method for processing downlink control information, which is executed by a first user equipment.
  • the method includes:
  • the physical sidelink shared channel PSSCH is transmitted to the second user equipment.
  • Embodiments of the present disclosure provide a method for processing downlink control information, which is executed by a network device.
  • Figure 4 is a flow chart of a method for sending downlink control information according to an exemplary embodiment. As shown in Figure 4, Methods include:
  • Step S401 Receive the switching capability sent by the first user equipment, where the switching capability is the capability of switching from the new air interface NR carrier to the sidelink carrier;
  • Step S402 determine the first duration T sL according to the switching capability
  • Step S403 Send downlink control information to the first user equipment, where the downlink control information includes information indicating a first duration T sL ; the first duration T sL is used when the first user equipment receives After the first duration T sL of the downlink control information, the physical sidelink shared channel PSSCH is transmitted to the second user equipment.
  • the switching capability includes a second duration of switching from a new air interface NR carrier to a sidelink SL carrier.
  • the switching capability is a second duration of switching from a new air interface NR carrier to a sidelink SL carrier.
  • the first duration T sL is positively correlated with the switching capability. The greater the switching capability, the greater the first duration T sL .
  • the first duration T sL is greater than the first preparation duration
  • the first preparation duration is the sum of the second preparation duration and the second duration
  • the second preparation duration is the The PSSCH preparation duration when the user equipment is camping on the sidelink carrier; wherein, by making the first duration T sL greater than the first preparation duration, it is ensured that the user equipment has sufficient preparation time to complete PSSCH preparation and handover.
  • the second preparation time is T proc
  • T proc is calculated according to the above formula (1).
  • the first preparation time is T proc,switch , and T proc,switch is calculated according to the above formula (2).
  • the first preparation time T proc, switch is the sum of the second preparation time T proc and the second time T SLswitch .
  • this method further includes: not performing sidelink transmission scheduling on the first user equipment during the period corresponding to the first duration T sL , that is, disabling sidelink transmission scheduling during the period corresponding to the first duration T sL .
  • Performing sidelink transmission scheduling on the first user equipment can avoid the situation in which the network device schedules sidelink transmission prematurely and the first user equipment cannot complete preparation of PSSCH in time due to the increase in preparation time.
  • embodiments of the present disclosure also provide a communication device, which can have the functions of the user equipment 102 in the above method embodiments, and is used to perform the functions provided by the user equipment 102 in the above embodiments. steps to perform.
  • This function can be implemented by hardware, or it can be implemented by software or hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the communication device 500 shown in Figure 5 can serve as the user equipment 102 involved in the above method embodiment, and perform the steps performed by the user equipment 102 in the above method embodiment.
  • the communication device 500 includes a transceiver module 501 .
  • the transceiver module 501 is configured to send switching capabilities to network equipment, the switching capabilities being the ability to switch from the new air interface NR carrier to the sidelink SL carrier; and is also configured to receive downlink control information sent by the network device, the downlink
  • the control information includes information indicating a first duration T sL ; the first duration T sL is determined according to the handover capability; and is further configured to, after receiving the first duration T sL of the downlink control information,
  • the second user equipment transmits the physical sidelink shared channel PSSCH.
  • the first duration T sL is positively correlated with the switching capability.
  • the switching capability includes a second duration of switching from a new air interface NR carrier to a sidelink SL carrier.
  • the first duration T sL is greater than the first preparation duration
  • the first preparation duration is the sum of the second preparation duration and the second duration
  • the second preparation duration is the PSSCH preparation duration when the user equipment is camping on the sidelink carrier.
  • the second preparation time is T proc
  • T proc is calculated according to the above formula (1).
  • the first preparation time T proc,switch is the sum of the second preparation time T proc and the second time T SLswitch .
  • the first preparation time is T proc,switch , and T proc,switch is calculated according to the above formula (2).
  • the communication device is user equipment 102, its structure may also be as shown in Figure 6 .
  • Figure 6 is a block diagram of a device 600 for processing downlink control information according to an exemplary embodiment.
  • the device 600 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.
  • the device 600 may include one or more of the following components: a processing component 602, a memory 604, a power supply component 606, a multimedia component 608, an audio component 610, an input/output (I/O) interface 612, a sensor component 614, and communications component 616.
  • Processing component 602 generally controls the overall operations of device 600, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 602 may include one or more processors 620 to execute instructions to complete all or part of the steps of the above method.
  • processing component 602 may include one or more modules that facilitate interaction between processing component 602 and other components.
  • processing component 602 may include a multimedia module to facilitate interaction between multimedia component 608 and processing component 602.
  • Memory 604 is configured to store various types of data to support operations at device 600 . Examples of such data include instructions for any application or method operating on device 600, contact data, phonebook data, messages, pictures, videos, etc.
  • Memory 604 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EEPROM), Programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EEPROM erasable programmable read-only memory
  • EPROM Programmable read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory, magnetic or optical disk.
  • Power supply component 606 provides power to the various components of device 600.
  • Power supply components 606 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 600 .
  • Multimedia component 608 includes a screen that provides an output interface between the device 600 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide action.
  • multimedia component 608 includes a front-facing camera and/or a rear-facing camera.
  • the front camera and/or the rear camera may receive external multimedia data.
  • Each front-facing camera and rear-facing camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.
  • Audio component 610 is configured to output and/or input audio signals.
  • audio component 610 includes a microphone (MIC) configured to receive external audio signals when device 600 is in operating modes, such as call mode, recording mode, and speech recognition mode. The received audio signals may be further stored in memory 604 or sent via communications component 616 .
  • audio component 610 also includes a speaker for outputting audio signals.
  • the I/O interface 612 provides an interface between the processing component 602 and a peripheral interface module, which may be a keyboard, a click wheel, a button, etc. These buttons may include, but are not limited to: Home button, Volume buttons, Start button, and Lock button.
  • Sensor component 614 includes one or more sensors for providing various aspects of status assessment for device 600 .
  • the sensor component 614 may detect the open/closed state of the device 600, the relative positioning of components, such as the display and keypad of the device 600, and the sensor component 614 may also detect a change in position of the device 600 or a component of the device 600. , the presence or absence of user contact with device 600 , device 600 orientation or acceleration/deceleration and temperature changes of device 600 .
  • Sensor assembly 614 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 614 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 616 is configured to facilitate wired or wireless communication between apparatus 600 and other devices.
  • Device 600 may access a wireless network based on a communication standard, such as WiFi, 4G or 5G, or a combination thereof.
  • the communication component 616 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communications component 616 also includes a near field communications (NFC) module to facilitate short-range communications.
  • NFC near field communications
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 600 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are implemented for executing the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable Gate array
  • controller microcontroller, microprocessor or other electronic components are implemented for executing the above method.
  • a non-transitory computer-readable storage medium including instructions such as a memory 604 including instructions, which are executable by the processor 620 of the device 600 to complete the above method is also provided.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • embodiments of the present disclosure also provide a communication device, which can have the functions of the network device 101 in the above method embodiments, and is used to perform the functions provided by the network device 101 in the above embodiments. steps to perform.
  • This function can be implemented by hardware, or it can be implemented by software or hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the communication device 700 shown in Figure 7 can serve as the network device 101 involved in the above method embodiment, and perform the steps performed by the network device 101 in the above method embodiment.
  • the communication device 700 shown in FIG. 7 includes a transceiver module 701 and a processing module 702.
  • the transceiver module 701 is configured to receive the switching capability sent by the first user equipment, where the switching capability is the capability of switching from the new air interface NR carrier to the sidelink carrier;
  • the processing module 702 is configured to determine the first duration T sL according to the switching capability
  • the transceiver module 701 is also configured to send downlink control information to the first user equipment, where the downlink control information includes information indicating a first duration T sL ; the first duration T sL is used for the first user equipment After receiving the first duration T sL of the downlink control information, the device transmits the physical sidelink shared channel PSSCH to the second user equipment.
  • the processing module 702 is also configured to not perform sidelink transmission scheduling for the first user equipment during the period corresponding to the first duration T sL , that is, during the period corresponding to the first duration T sL The first user equipment is prohibited from performing sidelink transmission scheduling during the period.
  • the first duration T sL is positively correlated with the switching capability.
  • the switching capability includes a second duration.
  • the processing module 702 is further configured to determine that the first preparation duration is the sum of the second preparation duration and the second duration, and the second preparation duration is when the first user equipment PSSCH preparation duration when residing on a sidelink carrier; and further configured to determine a first duration T sL that is greater than the first preparation duration based on the first preparation duration.
  • the second preparation time is T proc
  • T proc is calculated according to the above formula (1).
  • the first preparation time T proc,switch is the sum of the second preparation time T proc and the second time T SLswitch .
  • the first preparation time is T proc,switch , and T proc,switch is calculated according to the above formula (2).
  • the device 800 When the communication device is a network device 101, its structure may also be as shown in Figure 8.
  • the device 800 includes a memory 801, a processor 802, a transceiver component 803, and a power supply component 806.
  • the memory 801 is coupled with the processor 802 and can be used to save programs and data necessary for the communication device 800 to implement various functions.
  • the processor 802 is configured to support the communication device 800 to perform corresponding functions in the above method. This function can be implemented by calling a program stored in the memory 801 .
  • the transceiver component 803 may be a wireless transceiver, which may be used to support the communication device 800 to receive signaling and/or data through a wireless air interface, and to send signaling and/or data.
  • the transceiver component 803 may also be called a transceiver unit or a communication unit.
  • the transceiver component 803 may include a radio frequency component 804 and one or more antennas 805.
  • the radio frequency component 804 may be a remote radio unit (RRU). Specifically, It can be used for the transmission of radio frequency signals and the conversion of radio frequency signals and baseband signals.
  • the one or more antennas 805 can be specifically used for radiating and receiving radio frequency signals.
  • the processor 802 can perform baseband processing on the data to be sent, and then output the baseband signal to the radio frequency unit.
  • the radio frequency unit performs radio frequency processing on the baseband signal and then sends the radio frequency signal in the form of electromagnetic waves through the antenna.
  • the radio frequency unit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 802.
  • the processor 802 converts the baseband signal into data and processes the data. for processing.
  • the first user equipment reports its switching capability from the new air interface NR carrier to the sidelink SL carrier to the network device, so that the network device clearly knows the switching capability of the first user equipment, and configures the first user equipment with the first user equipment.
  • the first duration matches the switching capabilities of the user equipment, so that various first user devices with different switching capabilities are configured with a reasonable first duration, thereby improving network resource utilization.

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

Abstract

La présente divulgation concerne un procédé et un appareil de transmission d'informations de commande de liaison descendante, et un support de stockage lisible, applicables au domaine technique de la communication sans fil. Le procédé comprend les étapes suivantes : envoi d'une capacité de commutation à un dispositif de réseau, la capacité de commutation représentant une capacité de commuter d'une porteuse de nouvelle radio (NR) à une porteuse de liaison latérale (SL) ; réception d'informations de commande de liaison descendante envoyées par le dispositif de réseau, les informations de commande de liaison descendante comprenant des informations utilisées pour indiquer une première durée, et la première durée étant déterminée selon la capacité de commutation ; et après la réception de la première durée des informations de commande de liaison descendante, transmission d'un canal partagé de liaison latérale physique (PSSCH) à un second équipement utilisateur. Dans la présente divulgation, un premier équipement utilisateur rapporte, au dispositif de réseau, la capacité de commutation du premier équipement utilisateur pour commuter de la porteuse NR à la porteuse SL, de sorte que le dispositif de réseau apprenne explicitement la capacité de commutation du premier équipement utilisateur, et la première durée correspondant à la capacité de commutation du premier équipement utilisateur est configurée pour le premier équipement utilisateur, de sorte que divers premiers équipements utilisateurs présentant différentes capacités de commutation soient tous configurés avec une première durée raisonnable, ce qui permet d'augmenter le taux d'utilisation de ressources de réseau.
PCT/CN2022/083435 2022-03-28 2022-03-28 Procédé et appareil de transmission d'informations de commande de liaison descendante, et support de stockage lisible Ceased WO2023184094A1 (fr)

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CN202280000869.9A CN115066959A (zh) 2022-03-28 2022-03-28 一种传输下行控制信息的方法、装置及可读存储介质

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WO2021159418A1 (fr) * 2020-02-13 2021-08-19 华为技术有限公司 Procédé de détermination de durée de liaison latérale, et appareil associé
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US20190268964A1 (en) * 2016-11-11 2019-08-29 Lg Electronics Inc. Method and apparatus for configuring rrc connection establishment cause for relay terminal in idle state in wireless communication system
CN113678528A (zh) * 2019-03-29 2021-11-19 北京欧珀通信有限公司 一种用于非授权频谱的无线通信方法及装置、通信设备
CN113711652A (zh) * 2019-04-30 2021-11-26 Oppo广东移动通信有限公司 一种用于非授权频谱的功率调整方法及装置
WO2021159418A1 (fr) * 2020-02-13 2021-08-19 华为技术有限公司 Procédé de détermination de durée de liaison latérale, et appareil associé
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