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WO2024169867A1 - Procédé et appareil de transmission d'informations de conflit de sl-prs, et terminal - Google Patents

Procédé et appareil de transmission d'informations de conflit de sl-prs, et terminal Download PDF

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Publication number
WO2024169867A1
WO2024169867A1 PCT/CN2024/076674 CN2024076674W WO2024169867A1 WO 2024169867 A1 WO2024169867 A1 WO 2024169867A1 CN 2024076674 W CN2024076674 W CN 2024076674W WO 2024169867 A1 WO2024169867 A1 WO 2024169867A1
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WO
WIPO (PCT)
Prior art keywords
time slot
prs
channel
conflict
resource
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2024/076674
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English (en)
Chinese (zh)
Inventor
任晓涛
任斌
达人
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.)
Datang Mobile Communications Equipment Co Ltd
Original Assignee
Datang Mobile Communications Equipment Co Ltd
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 Datang Mobile Communications Equipment Co Ltd filed Critical Datang Mobile Communications Equipment Co Ltd
Publication of WO2024169867A1 publication Critical patent/WO2024169867A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a method, device and terminal for transmitting SL-PRS conflict information.
  • the downlink positioning reference signal and the uplink positioning reference signal are defined in the air interface between the base station and the terminal, while the sidelink-positioning reference signal (SL-PRS) is not defined in the PC5 interface between the terminals.
  • S-PRS sidelink-positioning reference signal
  • the terminal Before sending SL-PRS, the terminal needs to first determine the time-frequency resources used for SL-PRS transmission. If resource conflicts or collisions occur in the time-frequency resources used by multiple terminals to send SL-PRS, it will cause serious mutual interference between the SL-PRSs between the terminals, affecting the positioning accuracy of the direct link. On the other hand, in order to improve positioning accuracy, when sending SL-PRS, the terminal often uses a relatively large SL-PRS transmission bandwidth, which means that each SL-PRS will occupy more time-frequency resources, thereby increasing the probability and severity of resource conflicts or collisions of the SL-PRSs sent between multiple terminals.
  • the purpose of the embodiments of the present disclosure is to provide a method and device for transmitting SL-PRS conflict information. and terminal, so as to solve the problem in the related art that the time-frequency resources for sending SL-PRS are prone to conflict, resulting in reduced positioning accuracy of the direct link.
  • an embodiment of the present disclosure provides a method for transmitting conflict information of a direct link positioning reference signal SL-PRS, the method comprising:
  • the first terminal sends SL-PRS conflict information through the first channel; the SL-PRS conflict information is used to indicate that there is a resource conflict in the target SL-PRS transmission;
  • the time domain position of the first channel is related to the time domain position of the target SL-PRS, and/or the time domain position of the first channel is related to the time domain position of the first direct link control information SCI; the first SCI is used to indicate the resources reserved for the transmission of the target SL-PRS.
  • the first channel includes any one of the following channels:
  • the second PSFCH indicates SL-PRS collision information.
  • the method further includes: sending hybrid automatic repeat request acknowledgement HARQ-ACK information through the second channel;
  • the first parameter or the second parameter includes: at least one of time domain resources, frequency domain resources, sequence and cyclic shift.
  • the first terminal sending SL-PRS conflict information through the first channel includes:
  • the first terminal sends SL-PRS conflict information through the first channel according to a preset period value.
  • the method further comprises:
  • the first terminal determines, according to the enable switch signaling of the SL-PRS conflict information, that the first channel is configured in the target resource pool.
  • the method further comprises:
  • the first terminal determines reserved resources for SL-PRS transmission
  • the first terminal If there is a conflict in the reserved resources for SL-PRS transmission, the first terminal carries the SL-PRS conflict information in the first channel.
  • the resource conflict includes: a resource conflict between the target SL-PRS and other SL-PRSs, or a resource conflict between the target SL-PRS and a direct link data communication channel;
  • the direct link data communication channel includes at least one of the following channels:
  • the SL-PRS conflict information includes:
  • First indication information indicating whether there is an expected or potential SL-PRS conflict on the target SL-PRS
  • Second indication information indicating whether there is a detected SL-PRS conflict on the target SL-PRS.
  • the method further comprises:
  • the first terminal sends the first channel in a first time slot containing a PSFCH resource; wherein the first time slot is located in a time slot that is at least N1 time slots after the first reference time slot;
  • the first reference time slot is: a reception time slot of a physical direct link control channel PSCCH providing a first SCI, or the first reference time slot is a time slot where the first SCI is located; N1 is an integer greater than 1.
  • the PSFCH resource is located in a time slot that is at least M1 time slots before the resource associated with the SL-PRS conflict information; wherein M1 is an integer greater than 1.
  • N1 is configured by the PSFCH minimum time interval parameter; and/or, M1 is the terminal processing delay budget;
  • N1 and/or M1 are notified to the first terminal by the second terminal through signaling.
  • the method further comprises:
  • the first terminal sends the first channel in a target time slot containing PSFCH resources; wherein the target time slot is: the latest time slot of at least M2 time slots before the time slot of resources associated with SL-PRS conflict information; M2 is an integer greater than 1.
  • the PSFCH resource is located in a time slot that is at least N2 time slots after the first reference time slot; otherwise, the first terminal does not send the first channel;
  • the first reference time slot is: a reception time slot of a physical direct link control channel PSCCH providing a first SCI, or the first reference time slot is a time slot where the first SCI is located; N2 is an integer greater than 1.
  • N2 is configured by the PSFCH minimum time interval parameter; and/or, M2 is the terminal processing time Delayed budget;
  • N2 and/or M2 are notified to the first terminal by the second terminal through signaling.
  • the method further comprises:
  • the first terminal sends a first channel via a first time slot; wherein the first time slot is located in a time slot N time slots before the time slot where the resource conflict is located; N is an integer greater than 1;
  • the first terminal sends the first channel via a second time slot; wherein the second time slot is located in a time slot that is M time slots after the time slot where the resource conflict is located; and M is an integer greater than 1.
  • N is equal to the time domain position offset value T of the first channel
  • M is equal to the time domain position offset value T of the first channel.
  • the method further comprises:
  • the first terminal sends the first channel via a third time slot, where the third time slot is: a time slot where the nearest PSFCH opportunity before the resource of the expected or potential resource conflict is located;
  • the first terminal sends the first channel via a fourth time slot, and the fourth time slot is: a time slot where the nearest PSFCH opportunity after the resource of the detected resource conflict is located.
  • the method further comprises:
  • the first terminal sends the first channel via the fifth time slot;
  • the fifth time slot is: a K1+n1 time slot or a K1-n1 time slot, K1 is a time slot where the most recent PSFCH opportunity before the resource of the expected or potential resource conflict is located;
  • the first terminal receives the information via the sixth The first channel is sent in the time slot; the sixth time slot is: K2+n2 time slot or K2-n2 time slot, K2 is the time slot where the nearest PSFCH opportunity is located after the resource where the resource conflict is located;
  • n1 and n2 are integers greater than 1.
  • the minimum time interval between the time slot occupied by the first channel and the time slot where the target SL-PRS is located is equal to Y time slots;
  • Y is the terminal processing delay budget.
  • the number of resource blocks RB in the candidate resource set of the first channel in the target resource pool is an integer multiple of the product of the number of sub-channels included in the target resource pool and the resource period value of the first channel.
  • the method further comprises:
  • a candidate resource set for the first channel is determined according to the time slot number of the SL-PRS associated with the first channel, and the numbers of all subchannels occupied by the SL-PRS transmission and/or the comb number occupied by the SL-PRS transmission.
  • the embodiment of the present disclosure further provides a first terminal, including a memory, a transceiver, and a processor:
  • a memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:
  • the SL-PRS conflict information is used to indicate that there is a resource conflict in the target SL-PRS transmission;
  • the time domain position of the first channel is related to the time domain position of the target SL-PRS, and/or the time domain position of the first channel is related to the time domain position of the first direct link control information SCI; the first SCI is used to indicate the resources reserved for the transmission of the target SL-PRS.
  • the first channel includes any one of the following channels:
  • the second PSFCH indicates SL-PRS collision information.
  • the processor is further configured to: send a hybrid automatic repeat request response via a second channel HARQ-ACK information;
  • the first parameter or the second parameter includes: at least one of time domain resources, frequency domain resources, sequence and cyclic shift.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the SL-PRS conflict information is sent through the first channel according to a preset period value.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the enable switch signaling of the SL-PRS conflict information it is determined that the first channel is configured in the target resource pool.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the first terminal If there is a conflict in the reserved resources for SL-PRS transmission, the first terminal carries the SL-PRS conflict information in the first channel.
  • the resource conflict includes: a resource conflict between the target SL-PRS and other SL-PRSs, or a resource conflict between the target SL-PRS and a direct link data communication channel;
  • the direct link data communication channel includes at least one of the following channels:
  • the SL-PRS conflict information includes:
  • First indication information indicating whether there is an expected or potential SL-PRS conflict on the target SL-PRS
  • Second indication information indicating whether there is a detected SL-PRS conflict on the target SL-PRS.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the first channel is sent in the first time slot containing PSFCH resources; wherein the first A time slot is located in a time slot that is at least N1 time slots after the first reference time slot;
  • the first reference time slot is: a reception time slot of a physical direct link control channel PSCCH providing a first SCI, or the first reference time slot is a time slot where the first SCI is located; N1 is an integer greater than 1.
  • the PSFCH resource is located in a time slot that is at least M1 time slots before the resource associated with the SL-PRS conflict information; wherein M1 is an integer greater than 1.
  • N1 is configured by the PSFCH minimum time interval parameter; and/or, M1 is the terminal processing delay budget;
  • N1 and/or M1 are notified to the first terminal by the second terminal through signaling.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the first channel is sent in a target time slot containing PSFCH resources; wherein the target time slot is: the latest time slot of at least M2 time slots before the time slot of resources associated with SL-PRS conflict information; M2 is an integer greater than 1.
  • the PSFCH resource is located in a time slot that is at least N2 time slots after the first reference time slot;
  • the first reference time slot is: a reception time slot of a physical direct link control channel PSCCH providing a first SCI, or the first reference time slot is a time slot where the first SCI is located; N2 is an integer greater than 1.
  • N2 is configured by the PSFCH minimum time interval parameter; and/or, M2 is the terminal processing delay budget;
  • N2 and/or M2 are notified to the first terminal by the second terminal through signaling.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • a first channel is sent via a first time slot; wherein the first time slot is located in a time slot N time slots before the time slot where the resource conflict occurs; N is an integer greater than 1;
  • the first channel is sent via the second time slot; wherein the second time slot is located M time slots after the time slot where the resource conflict occurs. gap; M is an integer greater than 1.
  • N is equal to the time domain position offset value of the first channel, and T is equal to N;
  • M is equal to the time domain position offset value T of the first channel.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the first channel is sent via a third time slot, where the third time slot is: a time slot where the nearest PSFCH opportunity before the resource of the expected or potential resource conflict is located;
  • the first channel is sent via a fourth time slot, where the fourth time slot is a time slot where the nearest PSFCH opportunity after the resource of the detected resource conflict is located.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the first channel is sent via the fifth time slot;
  • the fifth time slot is: K1+n1 time slot or K1-n1 time slot, K1 is the time slot where the most recent PSFCH opportunity before the resource of the expected or potential resource conflict is located;
  • the first channel is sent via the sixth time slot;
  • the sixth time slot is: K2+n2 time slot or K2-n2 time slot, K2 is the time slot where the nearest PSFCH opportunity after the resource where the resource conflict is located;
  • n1 and n2 are integers greater than 1.
  • the minimum time interval between the time slot occupied by the first channel and the time slot where the target SL-PRS is located is equal to Y time slots;
  • Y is the terminal processing delay budget.
  • the number of resource blocks RB in the candidate resource set of the first channel in the target resource pool is An integer multiple of the product of the number of sub-channels included in the target resource pool and the first channel resource period value.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • a candidate resource set for the first channel is determined according to the time slot number of the SL-PRS associated with the first channel, and the numbers of all subchannels occupied by the SL-PRS transmission and/or the comb number occupied by the SL-PRS transmission.
  • the embodiment of the present disclosure also provides a transmission device for direct link positioning reference signal SL-PRS conflict information, including:
  • a sending unit configured to send SL-PRS conflict information through a first channel; the SL-PRS conflict information is used to indicate that there is a resource conflict in the target SL-PRS transmission;
  • the time domain position of the first channel is related to the time domain position of the target SL-PRS, and/or the time domain position of the first channel is related to the time domain position of the first direct link control information SCI; the first SCI is used to indicate the resources reserved for the transmission of the target SL-PRS.
  • the first channel includes any one of the following channels:
  • the second PSFCH indicates SL-PRS collision information.
  • the device is further used to: send hybrid automatic repeat request acknowledgement HARQ-ACK information through the second channel;
  • the first parameter or the second parameter includes: at least one of time domain resources, frequency domain resources, sequence and cyclic shift.
  • the sending unit includes:
  • the first terminal sends SL-PRS conflict information through the first channel according to a preset period value.
  • the device is also used for:
  • the enable switch signaling of the SL-PRS conflict information it is determined that the first channel is configured in the target resource pool.
  • the device is also used for:
  • the first terminal If there is a conflict in the reserved resources for SL-PRS transmission, the first terminal carries the SL-PRS conflict information in the first channel.
  • the resource conflict includes: a resource conflict between the target SL-PRS and other SL-PRSs, or a resource conflict between the target SL-PRS and a direct link data communication channel;
  • the direct link data communication channel includes at least one of the following channels:
  • the SL-PRS conflict information includes:
  • First indication information indicating whether there is an expected or potential SL-PRS conflict on the target SL-PRS
  • Second indication information indicating whether there is a detected SL-PRS conflict on the target SL-PRS.
  • the device is also used for:
  • the first reference time slot is: a reception time slot of a physical direct link control channel PSCCH providing a first SCI, or the first reference time slot is a time slot where the first SCI is located; N1 is an integer greater than 1.
  • the PSFCH resource is located in a time slot that is at least M1 time slots before the resource associated with the SL-PRS conflict information; wherein M1 is an integer greater than 1.
  • N1 is configured by the PSFCH minimum time interval parameter; and/or, M1 is the terminal processing delay budget;
  • N1 and/or M1 are notified to the first terminal by the second terminal through signaling.
  • the device is also used for:
  • the first channel is sent in a target time slot containing a PSFCH resource; wherein the target time slot
  • the slot is: the latest slot that is at least M2 slots before the slot of the resource associated with the SL-PRS collision information; M2 is an integer greater than 1.
  • the PSFCH resource is located in a time slot that is at least N2 time slots after the first reference time slot;
  • the first reference time slot is: a reception time slot of a physical direct link control channel PSCCH providing a first SCI, or the first reference time slot is a time slot where the first SCI is located; N2 is an integer greater than 1.
  • N2 is configured by the PSFCH minimum time interval parameter; and/or, M2 is the terminal processing delay budget;
  • N2 and/or M2 are notified to the first terminal by the second terminal through signaling.
  • the device is also used for:
  • a first channel is sent via a first time slot; wherein the first time slot is located in a time slot that is N time slots before the time slot where the resource conflict occurs; N is an integer greater than 1;
  • the first channel is sent via the second time slot; wherein the second time slot is located in a time slot M time slots after the time slot where the resource conflict is located; M is an integer greater than 1.
  • N is equal to the time domain position offset value T of the first channel
  • M is equal to the time domain position offset value T of the first channel.
  • the device is also used for:
  • the first channel is sent via a third time slot, where the third time slot is: a time slot where the nearest PSFCH opportunity before the resource of the expected or potential resource conflict is located;
  • the first The fourth time slot is the time slot where the nearest PSFCH opportunity after the resource with the detected resource conflict is located.
  • the device is also used for:
  • the first channel is sent via the fifth time slot;
  • the fifth time slot is: K1+n1 time slot or K1-n1 time slot, K1 is the time slot where the most recent PSFCH opportunity before the resource of the expected or potential resource conflict is located;
  • the first channel is sent via the sixth time slot;
  • the sixth time slot is: K2+n2 time slot or K2-n2 time slot, K2 is the time slot where the nearest PSFCH opportunity after the resource where the resource conflict is located;
  • n1 and n2 are integers greater than 1.
  • the minimum time interval between the time slot occupied by the first channel and the time slot where the target SL-PRS is located is equal to Y time slots;
  • Y is the terminal processing delay budget.
  • the number of resource blocks RB in the candidate resource set of the first channel in the target resource pool is an integer multiple of the product of the number of sub-channels included in the target resource pool and the first channel resource period value.
  • the device is also used for:
  • a candidate resource set for the first channel is determined according to the time slot number of the SL-PRS associated with the first channel, and the numbers of all subchannels occupied by the SL-PRS transmission and/or the comb number occupied by the SL-PRS transmission.
  • An embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the method as described above.
  • the first terminal sends the SL-PRS conflict information through the first channel, so that the terminal receiving the SL-PRS conflict information can consider the problem of resource conflict in the SL-PRS resource selection process, thereby reducing the probability of SL-PRS transmission failure due to SL-PRS resource collision and improving the positioning accuracy of the direct link.
  • FIG1 is a block diagram of a wireless communication system to which the embodiments of the present disclosure may be applied;
  • FIG2 is a schematic diagram showing the steps of a method for transmitting SL-PRS conflict information provided by an embodiment of the present disclosure
  • FIG3 shows one of the transmission example diagrams of the first channel in the SL-PRS conflict information transmission method provided by an embodiment of the present disclosure
  • FIG4 shows a second transmission example diagram of the first channel in the SL-PRS conflict information transmission method provided by an embodiment of the present disclosure
  • FIG5 shows one schematic diagram of periodic transmission of the first channel in the method for transmitting SL-PRS conflict information provided by an embodiment of the present disclosure
  • FIG6 shows a second schematic diagram of periodic transmission of the first channel in the method for transmitting SL-PRS conflict information provided by an embodiment of the present disclosure
  • FIG7 shows one schematic diagram of determining the time slot of the first channel in the method for transmitting SL-PRS conflict information provided by an embodiment of the present disclosure
  • FIG8 shows a second schematic diagram of determining the time slot of the first channel in the method for transmitting SL-PRS conflict information provided by an embodiment of the present disclosure
  • FIG9 shows a third schematic diagram of determining the time slot of the first channel in the method for transmitting SL-PRS conflict information provided by an embodiment of the present disclosure
  • FIG10 shows a fourth schematic diagram of determining the time slot of the first channel in the method for transmitting SL-PRS conflict information provided in an embodiment of the present disclosure
  • FIG11 is a fifth schematic diagram of determining the time slot of the first channel in the method for transmitting SL-PRS conflict information provided by an embodiment of the present disclosure
  • FIG. 12 shows the first channel in the SL-PRS conflict information transmission method provided in the embodiment of the present disclosure. Schematic diagram of time slot determination No. 6;
  • FIG13 is a seventh schematic diagram showing a time slot determination of the first channel in the method for transmitting SL-PRS conflict information provided by an embodiment of the present disclosure
  • FIG14 shows an eighth schematic diagram of determining the time slot of the first channel in the method for transmitting SL-PRS conflict information provided by an embodiment of the present disclosure
  • FIG15 is a ninth schematic diagram showing a time slot determination of a first channel in a method for transmitting SL-PRS conflict information provided by an embodiment of the present disclosure
  • FIG16 is a schematic diagram showing the structure of a first terminal provided in an embodiment of the present disclosure.
  • FIG17 is a schematic diagram showing the structure of a device for transmitting SL-PRS conflict information provided in an embodiment of the present disclosure.
  • the term "and/or” describes the association relationship of associated objects, indicating that three relationships may exist.
  • a and/or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" generally indicates that the associated objects before and after are in an "or" relationship.
  • plurality in the embodiments of the present disclosure refers to two or more than two, and other quantifiers are similar thereto.
  • FIG1 shows a block diagram of a wireless communication system applicable to the embodiments of the present disclosure.
  • the wireless communication system includes a terminal device 11 and a network side device 12.
  • the terminal device 11 may also be referred to as a terminal or a user terminal (User Equipment, UE). It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application.
  • the network side device 12 may be a base station or a core network. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • the term "and/or" describes the association relationship of associated objects, indicating that there may be three relationships.
  • a and/or B may represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/” generally indicates that the associated objects before and after are in an "or” relationship. Tie.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar.
  • the applicable systems can be global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new radio (NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD LTE frequency division duplex
  • TDD LTE time division duplex
  • LTE-A long term evolution advanced
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • NR new radio
  • EPS Evolved Packet System
  • 5GS 5G System
  • the terminal device involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • the name of the terminal device may also be different.
  • the terminal device may be called a user equipment (UE).
  • UE user equipment
  • a wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN).
  • CN core networks
  • RAN radio access network
  • the wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device.
  • it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and/or data with a wireless access network.
  • a Personal Communication Service (PCS) phone for example, a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiated Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) or a wireless local loop (WLL) station.
  • PCS Personal Communication Service
  • SIP Session Initiated Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • WLL wireless local loop
  • the wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, a user device, and the embodiments of the present application are not limited thereto.
  • the network device involved in the embodiments of the present application may be a base station, which may include multiple cells providing services to the terminal.
  • the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names.
  • the network device can be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • the network device can also coordinate the attribute management of the air interface.
  • the network device involved in the embodiments of the present application can be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network device (evolutional Node B, eNB or e-NodeB) in the long-term evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., but is not limited in the embodiments of the present application.
  • network devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and the distributed unit may also be geographically separated.
  • Network devices and terminal devices can each use one or more antennas for multiple input multiple output (MIMO) transmission.
  • MIMO transmission can be single user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO).
  • MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO) or ultra-large-scale MIMO. It can be massive-MIMO, diversity transmission, precoded transmission, beamforming transmission, etc.
  • an embodiment of the present disclosure provides a method for transmitting conflict information of a direct link positioning reference signal SL-PRS, the method comprising:
  • Step 201 The first terminal sends through a first channel; the SL-PRS conflict information is used to indicate that there is a resource SL-PRS conflict information conflict in the target SL-PRS transmission;
  • the time domain position of the first channel is related to the time domain position of the target SL-PRS, and/or the time domain position of the first channel is related to the time domain position of the first direct link control information (Sidelink Control Information, SCI); the first SCI is used to indicate the resources reserved for the transmission of the target SL-PRS.
  • SCI Servicelink Control Information
  • the first channel includes any one of the following channels:
  • PSRCH Physical Sidelink Resource Conflict Indication Channel
  • PSFCH Physical Sidelink Resource Conflict Indication Channel
  • the second PSFCH indicating SL-PRS conflict information may be referred to as Type 2 PSFCH.
  • the method further comprises: sending a hybrid automatic repeat request acknowledgment (HARQ-ACK) information through a second channel;
  • HARQ-ACK hybrid automatic repeat request acknowledgment
  • the first parameter of the first channel is different from the second parameter of the second channel; the first parameter or the second parameter includes: at least one of time domain resources, frequency domain resources, sequence and cyclic shift.
  • different time domain resources, different frequency domain resources, different sequences, or different cyclic shifts are used to indicate that the first PSFCH carries HARQ-ACK information or carries SL-PRS conflict information.
  • the first PSFCH transmitted on time domain resource 1 carries HARQ-ACK information
  • the first PSFCH transmitted on time domain resource 2 carries SL-PRS conflict information.
  • PSRCH and PSFCH are time-division multiplexed.
  • PSRCH and PSFCH occupy different time domain resources.
  • PSRCH occupies symbols 9 and 10
  • PSFCH occupies symbols 11 and Symbol No. 12 avoids resource conflicts between the two parties.
  • PSRCH and PSFCH are in the same frequency domain resources.
  • the first terminal simultaneously sends Type2 PSFCH and PSFCH in the 11th and 12th time slots of a certain RB (Resource Block) it occupies.
  • These two types of PSFCH occupy 12 subcarriers of one RB and two time slots, and the 11th time slot is a complete repetition of the 12th time slot.
  • Type2 PSFCH and PSFCH are code-division multiplexed, and they are distinguished by different sequences or different cyclic shift values (Cyclic Shift, CS).
  • a sequence of length 12 is placed on its 12 subcarriers, and the cyclic shift value of a sequence includes candidate values such as ⁇ 1,2,3,6 ⁇ , so that more PSFCH channels can be accommodated. If different types of PSFCH channels use the same sequence, CS#1 is used to represent PSFCH, and CS#2 is used to represent Type2 PSFCH; if different types of PSFCH channels use different sequences, sequence #1 is used to represent PSFCH, and sequence #2 is used to represent Type2 PSFCH.
  • Solution 1 The frequency domain position of the first channel is (pre) configured, that is, its specific frequency domain position is determined by relevant configuration signaling;
  • Solution 2 The frequency domain position of the first channel is fixed, that is, a frequency resource is predefined and is specifically used to transmit the first channel, and is not used to send other information.
  • the first terminal sends SL-PRS conflict information to another terminal via the first channel, so that the terminal can consider the problem of resource conflict during the SL-PRS resource selection process, thereby reducing the probability of SL-PRS transmission failure caused by SL-PRS resource collision and improving the positioning accuracy of the direct link.
  • step 201 includes:
  • the first terminal sends SL-PRS conflict information through the first channel according to a preset period value.
  • the method further includes:
  • the first terminal determines, according to the enable switch signaling of the SL-PRS conflict information, that the first channel is configured in the target resource pool.
  • the SL-PRS conflict information enabling switch signaling may be configured in the sidelink control information (Sidelink Control Information, SCI) or the radio resource control (Radio Resource Control, RRC) signaling; for example, the RRC signaling includes PC5RRC signaling or NR Uu RRC signaling.
  • SCI Sidelink Control Information
  • RRC Radio Resource Control
  • the first channel uses a periodic reporting method when sending information, and the period value P can be configured through SCI or RRC signaling.
  • the RRC signaling includes PC5RRC signaling or NR Uu RRC signaling. If the period of the first channel of the first terminal is configured by other terminals, it is configured through PC5RRC signaling; if the period of the first channel of the first terminal is configured by the base station, it is configured through NR Uu RRC signaling.
  • the subchannel is the frequency domain unit for direct link resource allocation, and a subchannel is composed of one or more continuous physical resource blocks PRB in the frequency domain.
  • the first terminal sends SL-PRS conflict information to another terminal through the first channel, so that the terminal can consider the problem of resource conflict in the SL-PRS resource selection process, reduce the probability of SL-PRS transmission failure caused by SL-PRS resource collision, and improve the positioning accuracy of the direct link.
  • the periodic first channel reduces the complexity of the first channel configuration.
  • the method further includes:
  • the first terminal determines reserved resources for SL-PRS transmission
  • the first terminal If there is a conflict in the reserved resources for SL-PRS transmission, the first terminal carries the SL-PRS conflict information in the first channel.
  • the first terminal determines reserved resources for SL-PRS transmission based on the first SCI, where the reserved resources include: a resource set of one or more time slots and resource blocks reserved for SL-PRS transmission.
  • the resource conflict includes: a resource conflict between the target SL-PRS and other SL-PRSs (which may also be referred to as a conflict between the time-frequency resources occupied by the target SL-PRS and the time-frequency resources occupied by other SL-PRSs), or a resource conflict between the target SL-PRS and a direct link data communication channel (which may also be referred to as a conflict between the time-frequency resources occupied by the target SL-PRS and the time-frequency resources occupied by the direct link data communication channel).
  • a resource conflict between the target SL-PRS and other SL-PRSs which may also be referred to as a conflict between the time-frequency resources occupied by the target SL-PRS and the time-frequency resources occupied by the direct link data communication channel.
  • the direct link data communication channel includes at least one of the following channels:
  • the SL-PRS conflict information includes:
  • First indication information indicating whether there is an expected or potential SL-PRS conflict on the target SL-PRS
  • Second indication information indicating whether there is a detected SL-PRS conflict on the target SL-PRS.
  • the embodiments of the present disclosure provide multiple methods for determining the time slot occupied by the first channel.
  • the following describes different methods for determining the time slot occupied by the first channel.
  • the time domain position of the first channel in the method 1 for determining the time slot occupied by the first channel is determined by taking the time domain position of the first SCI used to indicate the target SL-PRS resource as a reference, and determining its time domain position as an example to illustrate the method for determining the time domain position of the first channel. That is, in at least one embodiment of the present disclosure, the method further includes:
  • the first terminal sends the first channel in a first time slot containing a PSFCH resource; wherein the first time slot is located in a time slot at least N1 time slots after a first reference time slot; or, the first time slot is located in a time slot at least N1 time slots after the first reference time slot;
  • the first reference time slot is: a reception time slot of a physical direct link control channel PSCCH providing a first SCI, or the first reference time slot is a time slot where the first SCI is located; N1 is an integer greater than 1.
  • the PSFCH resource is located in a time slot at least M1 time slots before the resource associated with the SL-PRS conflict information; or, the PSFCH resource is located in a time slot at least M1 time slots before the resource associated with the SL-PRS conflict information. Otherwise, if the PSFCH resource does not meet the above conditions, the first terminal does not send the first channel; wherein M1 is an integer greater than 1.
  • N1 is configured by a PSFCH minimum time interval (sl-MinTimeGapPSFCH) parameter; and/or, M1 is a terminal processing delay budget T 3 or T proc,1 ;
  • N1 and/or M1 are notified by the second terminal to the first terminal through signaling.
  • the second terminal is a terminal that receives the first channel.
  • the first terminal receives the first SCI on time slot 3 of subchannel 1, which indicates that the resources on time slot 13 of subchannel 2 will be occupied by terminal B to send SL-PRS resources.
  • the first terminal also finds that the resources on time slot 13 of subchannel 2 have been occupied by other terminals, resulting in a resource conflict.
  • the first terminal has detected the SL-PRS conflict information before the SL-PRS resource conflict occurs.
  • the time domain position of the first channel is related to the time domain position of the first SCI used to indicate the target SL-PRS resource, which is direct and effective.
  • the time domain position of the first channel in the method 2 for determining the time slot occupied by the first channel is determined by taking the time domain position of the target SL-PRS resource as a reference, and determining its time domain position as an example to illustrate the method for determining the time domain position of the first channel. That is, in at least one embodiment of the present disclosure, the method further includes:
  • the first terminal sends the first channel in a target time slot including PSFCH resources; wherein the target time slot is: the latest time slot that is at least M2 time slots before the time slot of resources associated with SL-PRS conflict information; or, the target time slot is: the latest time slot that is at least M2 time slots before the time slot of resources associated with SL-PRS conflict information; M2 is an integer greater than 1.
  • the PSFCH resource is located in a time slot at least N2 time slots after the first reference time slot, or the PSFCH resource is located in a time slot spaced at least N2 time slots after the first reference time slot; otherwise, if the PSFCH resource does not meet the above conditions, the first terminal does not send the first channel;
  • the first reference time slot is: a reception time slot of a physical direct link control channel PSCCH providing a first SCI, or the first reference time slot is a time slot where the first SCI is located; N2 is an integer greater than 1.
  • N2 is configured by a PSFCH minimum time interval (sl-MinTimeGapPSFCH) parameter; and/or, M2 is a terminal processing delay budget T 3 or T proc,1 ;
  • N2 and/or M2 are notified by the second terminal to the first terminal through signaling.
  • the second terminal is a terminal that receives the first channel.
  • the first terminal receives the first SCI on time slot 3 of subchannel 1, which indicates that the resources on time slot 13 of subchannel 2 will be occupied by terminal B to send SL-PRS resources.
  • the first terminal also finds that the resources on time slot 13 of subchannel 2 have been occupied by other terminals, resulting in a resource conflict.
  • the first terminal has detected the SL-PRS conflict information before the SL-PRS resource conflict occurs.
  • the first terminal needs to determine the time slot occupied by the first channel and send the first channel to terminal B to avoid the conflict.
  • the time domain position of the first channel is related to the time domain position of the target SL-PRS, which is direct and effective.
  • the first channel takes the time domain position of the SL-PRS resource with resource conflict as a reference to determine its time domain position as an example to illustrate the method for determining the time domain position of the first channel. That is, in at least one embodiment of the present disclosure, the method further includes:
  • the first terminal sends a first channel via a first time slot; wherein the first time slot is located in a time slot N time slots before the time slot where the resource conflict is located; or, the first time slot is located in a time slot N time slots before the time slot where the resource conflict is located; N is an integer greater than 1;
  • the first terminal sends the first channel via the second time slot; wherein the second time slot is located in a time slot that is M time slots after the time slot where the resource conflict is located; or, the second time slot is located in a time slot that is M time slots after the time slot where the resource conflict is located; M is an integer greater than 1.
  • only one reference T is used to determine the time domain position offset of the first channel:
  • N is equal to the time domain position offset value T of the first channel
  • M is equal to the time domain position offset value T of the first channel.
  • terminal B sends SCI on time slot 2 of subchannel 1
  • terminal C sends SCI on time slot 7 of subchannel 3.
  • Both SCIs indicate that the resources on time slot 13 of subchannel 2 will be used by terminal B and terminal C to send SL-PRS respectively, resulting in SL-PRS resource conflict.
  • the first terminal monitors the SCI sent by terminal B and terminal C before the SL-PRS resource conflict occurs, and learns the expected/potential resource conflict information, the first terminal will send the first channel in the 10th time slot of subchannel 4 to send the resource conflict information to terminal B, and terminal B will change the transmission resources to avoid the occurrence of SL-PRS resource conflict.
  • the first terminal monitors the SCI sent by terminal B and terminal C after the SL-PRS resource conflict occurs, and learns the detected resource conflict information
  • the first terminal sends the first channel in the 16th time slot of subchannel 4 to send the resource conflict information to terminal B, and terminal B will retransmit to avoid SL-PRS transmission loss.
  • the time domain position of the first channel is related to the time domain position of the target SL-PRS resource, which is direct and effective.
  • the time slot occupied by the first channel in method 4 is determined by The time domain position of the target SL-PRS resource is used as a reference to determine its time domain position as an example to illustrate the method for determining the time domain position of the first channel. That is, in at least one embodiment of the present disclosure, the method further includes:
  • the first terminal sends the first channel via a third time slot, where the third time slot is: a time slot where the nearest PSFCH opportunity before the resource of the expected or potential resource conflict is located;
  • the first terminal sends the first channel via a fourth time slot, and the fourth time slot is: a time slot where the nearest PSFCH opportunity after the resource of the detected resource conflict is located.
  • terminal B sends SCI on time slot 2 of subchannel 1
  • terminal C sends SCI on time slot 7 of subchannel 3.
  • Both SCIs indicate that the resources on time slot 13 of subchannel 2 will be used by terminal B and terminal C to send data, respectively, so there is a SL-PRS resource conflict.
  • the first terminal periodically sends PSFCH on subchannel 4.
  • the first terminal monitors the SCI sent by terminal B and terminal C before the resource conflict occurs, and learns the expected/potential SL-PRS resource conflict information
  • the first terminal sends a coordination message via the first channel resource in the first time slot, and the first time slot is the time slot where the nearest PSFCH opportunity before the resource with the expected/potential resource conflict is located.
  • the first terminal sends the SL-PRS resource conflict information to terminal B through the first channel in time slot 12 of subchannel 4, and terminal B will change the SL-PRS transmission resource to avoid the occurrence of SL-PRS resource conflict.
  • the first terminal sends the first channel in the first time slot X6.
  • the first terminal monitors the SCI sent by terminal B and terminal C after the resource conflict occurs, and learns the detected SL-PRS resource conflict information
  • the first terminal sends a coordination message via the first channel resource in the first time slot, and the first time slot is the time slot where the nearest PSFCH opportunity after the resource with the detected resource conflict is located.
  • the first terminal sends the SL-PRS conflict information to terminal B in the first channel in the 14th time slot of subchannel 4, and terminal B will retransmit the SL-PRS resources to avoid SL-PRS transmission loss.
  • the first terminal sends the first channel at the first time slot X7.
  • the time domain position of the first channel is related to the time domain position of the target SL-PRS resource, which is direct and effective.
  • the time domain position of the first channel in the method 4 for determining the time slot occupied by the first channel is determined by taking the time domain position of the target SL-PRS resource as a reference, and determining its time domain position as an example to illustrate the method for determining the time domain position of the first channel. That is, in at least one embodiment of the present disclosure, the method further includes:
  • the first terminal sends the first channel via the fifth time slot;
  • the fifth time slot is: a K1+n1 time slot or a K1-n1 time slot, K1 is a time slot where the most recent PSFCH opportunity before the resource of the expected or potential resource conflict is located;
  • the first terminal sends the first channel via the sixth time slot;
  • the sixth time slot is: K2+n2 time slot or K2-n2 time slot, K2 is the time slot where the nearest PSFCH opportunity after the resource where the resource conflict is located;
  • n1 and n2 are integers greater than 1.
  • terminal B sends SCI on time slot 2 of subchannel 1
  • terminal C sends SCI on time slot 7 of subchannel 3.
  • Both SCIs indicate that the resources on time slot 13 of subchannel 2 will be used by terminal B and terminal C to send SL-PRS resources, respectively, so there is a resource conflict.
  • the first terminal periodically sends PSFCH on subchannel 4.
  • the first terminal monitors the SCI sent by terminal B and terminal C before the SL-PRS resource conflict occurs, and learns the expected/potential resource conflict information
  • the first terminal monitors the SCI sent by the terminal B and the terminal C after the SL-PRS resource conflict occurs and learns the detected resource conflict information
  • the time domain position of the first channel is related to the time domain position of the target SL-PRS resource, which is direct and effective.
  • the minimum time interval between the time slot occupied by the first channel and the time slot where the target SL-PRS is located is equal to Y time slots; wherein Y is the terminal processing delay budget T 3 or T proc,1 .
  • the time interval between the time slot occupied by the first channel and the SL-PRS resource with resource conflict is S, and S ⁇ Y, then it is necessary to re-determine the time slot occupied by the first channel to satisfy S ⁇ Y. Because if the time slot occupied by the first channel is too close to the SL-PRS resource with resource time slot conflict, after receiving the first channel sent by the first terminal, terminal B may not have time to process the resource conflict information carried in the first channel, and may not have time to change the transmission resources, which will still cause the SL-PRS resource conflict in time slot No. 13 in Figures 7 to 13.
  • the embodiment of the present disclosure limits the minimum time interval between the time slot sent by the first channel and the time slot where the SL-PRS resource with resource conflict is located to Y time slots, thereby avoiding the problem that the terminal has no time to process after receiving the first channel, thereby affecting the resource coordination effect.
  • the number of resource blocks (RB) in the candidate resource set of the first channel in the target resource pool is an integer multiple of the product of the number of sub-channels (Q) contained in the target resource pool and the first channel resource period value (P).
  • the method for determining the first channel candidate resource set further includes:
  • Solution 1 according to the time slot number of the SL-PRS associated with the first channel, and the SL-PRS The number of the starting subchannel occupied by the transmission and/or the comb number occupied by the SL-PRS transmission are used to determine the candidate resource set of the first channel;
  • Solution 2 determining the candidate resource set of the first channel according to the time slot number of the SL-PRS associated with the first channel, and the numbers of all sub-channels occupied by the SL-PRS transmission and/or the comb tooth number occupied by the SL-PRS transmission.
  • the number of RBs in the candidate resource set of the first channel in a resource pool is an integer multiple of 8.
  • the first channel candidate resources are mapped. Since only the starting subchannel number occupied by the SL-PRS is involved, fewer first channel available candidate resources can be mapped.
  • the first channel candidate resources are mapped. Since all subchannel numbers occupied by the SL-PRS are involved, more first channel available candidate resources can be mapped.
  • the method for determining the candidate resource set of the first channel described in this embodiment facilitates the first terminal to determine the candidate resource set used by the first channel, thereby avoiding the problem of resource collision when the terminal selects the transmission resource of the first channel.
  • the first terminal sends SL-PRS conflict information through the first channel, so that the terminal receiving the SL-PRS conflict information can consider the problem of resource conflict in the SL-PRS resource selection process, thereby reducing the probability of SL-PRS transmission failure caused by SL-PRS resource collision and improving the positioning accuracy of the direct link.
  • the embodiment of the present disclosure further provides a first terminal, including a memory 1620, a transceiver 1610, and a processor 1600:
  • the memory 1620 is used to store computer programs; the transceiver 1610 is used to send and receive data under the control of the processor 1600; the processor 1600 is used to read the computer program in the memory 1620 and perform the following operations:
  • the SL-PRS conflict information is used to indicate that there is a resource conflict in the target SL-PRS transmission;
  • the time domain position of the first channel is related to the time domain position of the target SL-PRS, and/or the time domain position of the first channel is related to the time domain position of the first direct link control information SCI; the first SCI is used to indicate the resources reserved for the transmission of the target SL-PRS.
  • the first channel includes any one of the following channels:
  • the second PSFCH indicates SL-PRS collision information.
  • the processor is further configured to: send hybrid automatic repeat request acknowledgement HARQ-ACK information through the second channel;
  • the first parameter or the second parameter includes: at least one of time domain resources, frequency domain resources, sequence and cyclic shift.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the SL-PRS conflict information is sent through the first channel according to a preset period value.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the enable switch signaling of the SL-PRS conflict information it is determined that the first channel is configured in the target resource pool.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the first terminal If there is a conflict in the reserved resources for SL-PRS transmission, the first terminal carries the SL-PRS conflict information in the first channel.
  • the resource conflict includes: a resource conflict occurs between the target SL-PRS and other SL-PRSs, or a resource conflict occurs between the target SL-PRS and a through link data communication channel;
  • the direct link data communication channel includes at least one of the following channels:
  • the SL-PRS conflict information includes:
  • First indication information indicating whether there is an expected or potential SL-PRS conflict on the target SL-PRS
  • Second indication information indicating whether there is a detected SL-PRS conflict on the target SL-PRS.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the first reference time slot is: a reception time slot of a physical direct link control channel PSCCH providing a first SCI, or the first reference time slot is a time slot where the first SCI is located; N1 is an integer greater than 1.
  • the PSFCH resource is located in a time slot that is at least M1 time slots before the resource associated with the SL-PRS conflict information; wherein M1 is an integer greater than 1.
  • N1 is configured by a PSFCH minimum time interval parameter; and/or, M1 is a terminal processing delay budget;
  • N1 and/or M1 are notified to the first terminal by the second terminal through signaling.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the first channel is sent in a target time slot containing PSFCH resources; wherein the target time slot is: the latest time slot of at least M2 time slots before the time slot of resources associated with SL-PRS conflict information; M2 is an integer greater than 1.
  • the PSFCH resource is located in a time slot that is at least N2 time slots after the first reference time slot;
  • the first reference time slot is: a reception time slot of a physical direct link control channel PSCCH providing a first SCI, or the first reference time slot is a time slot where the first SCI is located; N2 is an integer greater than 1.
  • N2 is configured by a PSFCH minimum time interval parameter; and/or, M2 is a terminal processing delay budget;
  • N2 and/or M2 are notified to the first terminal by the second terminal through signaling.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • a first channel is sent via a first time slot; wherein the first time slot is located in a time slot that is N time slots before the time slot where the resource conflict occurs; N is an integer greater than 1;
  • the first channel is sent via the second time slot; wherein the second time slot is located in a time slot that is M time slots after the time slot where the resource conflict is located; and M is an integer greater than 1.
  • N is equal to the time domain position offset value T of the first channel
  • M is equal to the time domain position offset value T of the first channel.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the first channel is sent via a third time slot, where the third time slot is: a time slot where the nearest PSFCH opportunity before the resource of the expected or potential resource conflict is located;
  • the first channel is sent via a fourth time slot, where the fourth time slot is a time slot where the nearest PSFCH opportunity after the resource of the detected resource conflict is located.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • the SL-PRS conflict information type is expected or potential resource conflict, it is sent via the fifth time slot.
  • the first channel; the fifth time slot is: K1+n1 time slot or K1-n1 time slot, K1 is the time slot where the nearest PSFCH opportunity before the resource of the expected or potential resource conflict is located;
  • the first channel is sent via the sixth time slot;
  • the sixth time slot is: K2+n2 time slot or K2-n2 time slot, K2 is the time slot where the nearest PSFCH opportunity after the resource where the resource conflict is located;
  • n1 and n2 are integers greater than 1.
  • the minimum time interval between the time slot occupied by the first channel and the time slot where the target SL-PRS is located is equal to Y time slots;
  • Y is the terminal processing delay budget.
  • the number of resource blocks RB in the candidate resource set of the first channel in the target resource pool is an integer multiple of the product of the number of sub-channels included in the target resource pool and the resource period value of the first channel.
  • the processor is further configured to read the computer program in the memory and perform the following operations:
  • a candidate resource set for the first channel is determined according to the time slot number of the SL-PRS associated with the first channel, and the numbers of all subchannels occupied by the SL-PRS transmission and/or the comb number occupied by the SL-PRS transmission.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1600 and various circuits of memory represented by memory 1620 are linked together.
  • the bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein.
  • the bus interface provides an interface.
  • the transceiver 1610 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which may include wireless channels, wired channels, optical cables, and other transmission media.
  • the user interface 1630 may also be an interface that can be connected to external or internal devices, and the connected devices include but are not limited to a small keyboard, a display, a speaker, a microphone, a joystick, etc.
  • the processor 1600 is responsible for managing the bus architecture and general processing, and the memory 1620 can store data used by the processor 1600 when performing operations.
  • processor 1600 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD), and the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • CPLD complex programmable logic device
  • the processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions.
  • the processor and the memory can also be arranged physically separately.
  • the first terminal sends SL-PRS conflict information through the first channel, so that the terminal receiving the SL-PRS conflict information can consider the problem of resource conflict in the process of SL-PRS resource selection, thereby reducing the probability of SL-PRS transmission failure caused by SL-PRS resource collision and improving the positioning accuracy of the direct link.
  • first terminal provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect.
  • the parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.
  • the embodiment of the present disclosure further provides a transmission device for direct link positioning reference signal SL-PRS conflict information, including:
  • the sending unit 1701 is configured to send SL-PRS conflict information through a first channel; the SL-PRS conflict information is used to indicate that there is a resource conflict in the target SL-PRS transmission;
  • the time domain position of the first channel is related to the time domain position of the target SL-PRS, and/or the time domain position of the first channel is related to the time domain position of the first direct link control information SCI; the first SCI is used to indicate the resources reserved for the transmission of the target SL-PRS.
  • the first terminal sends SL-PRS conflict information through the first channel, so that the terminal receiving the SL-PRS conflict information can consider the problem of resource conflict in the SL-PRS resource selection process, reducing the probability of SL-PRS transmission failure caused by SL-PRS resource collision and improving Direct link positioning accuracy.
  • the first channel includes any one of the following channels:
  • the second PSFCH indicates SL-PRS collision information.
  • the apparatus is further used to: send hybrid automatic repeat request acknowledgement HARQ-ACK information through the second channel;
  • the first parameter or the second parameter includes: at least one of time domain resources, frequency domain resources, sequence and cyclic shift.
  • the sending unit includes:
  • the first terminal sends SL-PRS conflict information through the first channel according to a preset period value.
  • the device is also used for:
  • the enable switch signaling of the SL-PRS conflict information it is determined that the first channel is configured in the target resource pool.
  • the device is also used for:
  • the first terminal If there is a conflict in the reserved resources for SL-PRS transmission, the first terminal carries the SL-PRS conflict information in the first channel.
  • the resource conflict includes: a resource conflict between the target SL-PRS and other SL-PRSs, or a resource conflict between the target SL-PRS and a direct link data communication channel;
  • the direct link data communication channel includes at least one of the following channels:
  • the SL-PRS conflict information includes:
  • First indication information indicating whether there is an expected or potential SL-PRS conflict on the target SL-PRS
  • Second indication information indicating whether there is a detected SL-PRS conflict on the target SL-PRS.
  • the device is also used for:
  • the first reference time slot is: a reception time slot of a physical direct link control channel PSCCH providing a first SCI, or the first reference time slot is a time slot where the first SCI is located; N1 is an integer greater than 1.
  • the PSFCH resource is located in a time slot that is at least M1 time slots before the resource associated with the SL-PRS conflict information; wherein M1 is an integer greater than 1.
  • N1 is configured by the PSFCH minimum time interval parameter; and/or, M1 is the terminal processing delay budget;
  • N1 and/or M1 are notified to the first terminal by the second terminal through signaling.
  • the device is also used for:
  • the first channel is sent in a target time slot containing PSFCH resources; wherein the target time slot is: the latest time slot of at least M2 time slots before the time slot of resources associated with SL-PRS conflict information; M2 is an integer greater than 1.
  • the PSFCH resource is located in a time slot that is at least N2 time slots after the first reference time slot;
  • the first reference time slot is: a reception time slot of a physical direct link control channel PSCCH providing a first SCI, or the first reference time slot is a time slot where the first SCI is located; N2 is an integer greater than 1.
  • N2 is configured by the PSFCH minimum time interval parameter; and/or, M2 is the terminal processing delay budget;
  • N2 and/or M2 are notified to the first terminal by the second terminal through signaling.
  • the device is also used for:
  • a first channel is sent via a first time slot; wherein the first time slot is located in a time slot that is N time slots before the time slot where the resource conflict occurs; N is an integer greater than 1;
  • the SL-PRS conflict information type is a detected resource conflict, the first Channel transmission; wherein the second time slot is located in the time slot of M time slots after the time slot where the resource conflict is located; M is an integer greater than 1.
  • N is equal to the time domain position offset value T of the first channel
  • M is equal to the time domain position offset value T of the first channel.
  • the device is also used for:
  • the first channel is sent via a third time slot, where the third time slot is: a time slot where the nearest PSFCH opportunity before the resource of the expected or potential resource conflict is located;
  • the first channel is sent via a fourth time slot, where the fourth time slot is a time slot where the nearest PSFCH opportunity after the resource of the detected resource conflict is located.
  • the device is also used for:
  • the first channel is sent via the fifth time slot;
  • the fifth time slot is: K1+n1 time slot or K1-n1 time slot, K1 is the time slot where the most recent PSFCH opportunity before the resource of the expected or potential resource conflict is located;
  • the first channel is sent via the sixth time slot;
  • the sixth time slot is: K2+n2 time slot or K2-n2 time slot, K2 is the time slot where the nearest PSFCH opportunity after the resource where the resource conflict is located;
  • n1 and n2 are integers greater than 1.
  • the minimum time interval between the time slot occupied by the first channel and the time slot where the target SL-PRS is located is equal to Y time slots;
  • Y is the terminal processing delay budget.
  • the number of resource blocks RB in the candidate resource set of the first channel in the target resource pool is an integer multiple of the product of the number of sub-channels included in the target resource pool and the first channel resource period value.
  • the device is also used for:
  • a candidate resource set for the first channel is determined according to the time slot number of the SL-PRS associated with the first channel, and the numbers of all subchannels occupied by the SL-PRS transmission and/or the comb tooth number occupied by the SL-PRS transmission.
  • each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.
  • the present disclosure also provides a processor-readable storage medium.
  • the computer program is stored in the medium, and the computer program is used to make the processor execute the various steps in the method embodiment described above.
  • the processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (Magneto-Optical, MO)), optical storage (such as compact discs (Compact Disc, CD), high-density digital video discs (Digital Video Disc, DVD), Blu-ray Discs (Blu-ray Disc, BD), high-definition universal discs (High-definition Versatile Disc, HVD), etc.), and semiconductor storage (such as ROM, erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), non-volatile memory (
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.
  • a computer-usable storage media including but not limited to disk storage and optical storage, etc.
  • each process and/or box in the flowchart and/or block diagram, and the combination of the process and/or box in the flowchart and/or block diagram can be implemented by computer executable instructions.
  • These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the function specified in one process or multiple processes in the flowchart and/or one box or multiple boxes in the block diagram.
  • processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
  • processor executable instructions can also be loaded onto a computer or other programmable data processing device so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the flowchart.
  • the division of the above modules is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. And these modules can all be implemented in the form of software called by processing elements; they can also be all implemented in the form of hardware; some modules can also be implemented in the form of software called by processing elements, and some modules can be implemented in the form of hardware.
  • the determination module can be a separately established processing element, or it can be integrated in a chip of the above-mentioned device. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, and called and executed by a processing element of the above-mentioned device.
  • each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, such as one or more application specific integrated circuits (ASIC), or one or more microprocessors (digital signal processors, DSP), or one or more field programmable gate arrays (FPGA).
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • FPGA field programmable gate arrays
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code.
  • CPU central processing unit
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip

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

Abstract

La présente divulgation se rapporte au domaine technique des communications, et concerne un procédé et un appareil de transmission d'informations de conflit de SL-PRS, ainsi qu'un terminal. Le procédé comprend les étapes suivantes : un premier terminal envoie des informations de conflit de SL-PRS au moyen d'un premier canal, les informations de conflit de SL-PRS étant utilisées pour indiquer qu'il existe un conflit de ressources dans une transmission de SL-PRS cible. La position dans le domaine temporel du premier canal est associée à la position dans le domaine temporel d'un SL-PRS cible, et/ou la position dans le domaine temporel du premier canal est associée à la position dans le domaine temporel de premières informations de commande de liaison latérale (SCI). Les premières SCI sont utilisées pour indiquer des ressources réservées pour la transmission de SL-PRS cible.
PCT/CN2024/076674 2023-02-17 2024-02-07 Procédé et appareil de transmission d'informations de conflit de sl-prs, et terminal Ceased WO2024169867A1 (fr)

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CN202310184141.2 2023-02-17
CN202310184141.2A CN118524454A (zh) 2023-02-17 2023-02-17 Sl-prs冲突信息的传输方法、装置及终端

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112994858A (zh) * 2019-12-17 2021-06-18 大唐移动通信设备有限公司 一种直通链路定位参考信号的发送、接收方法及终端
WO2022151440A1 (fr) * 2021-01-15 2022-07-21 华为技术有限公司 Procédé, appareil et système de transmission d'indication de collision de ressources
CN114915391A (zh) * 2021-02-10 2022-08-16 维沃移动通信有限公司 冲突指示方法、装置及电子设备
WO2022204621A2 (fr) * 2021-08-05 2022-09-29 Futurwei Technologies, Inc. Procédé et appareil de coordination entre équipements utilisateur (ue) dans des communications de liaison latérale (sl)
WO2023011086A1 (fr) * 2021-08-05 2023-02-09 大唐移动通信设备有限公司 Procédé de traitement d'informations, terminal et support de stockage lisible

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112994858A (zh) * 2019-12-17 2021-06-18 大唐移动通信设备有限公司 一种直通链路定位参考信号的发送、接收方法及终端
WO2022151440A1 (fr) * 2021-01-15 2022-07-21 华为技术有限公司 Procédé, appareil et système de transmission d'indication de collision de ressources
CN114915391A (zh) * 2021-02-10 2022-08-16 维沃移动通信有限公司 冲突指示方法、装置及电子设备
WO2022204621A2 (fr) * 2021-08-05 2022-09-29 Futurwei Technologies, Inc. Procédé et appareil de coordination entre équipements utilisateur (ue) dans des communications de liaison latérale (sl)
WO2023011086A1 (fr) * 2021-08-05 2023-02-09 大唐移动通信设备有限公司 Procédé de traitement d'informations, terminal et support de stockage lisible

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