WO2025036282A1 - Sl prs资源的确定方法、指示方法、装置及存储介质 - Google Patents

Sl prs资源的确定方法、指示方法、装置及存储介质 Download PDF

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Publication number
WO2025036282A1
WO2025036282A1 PCT/CN2024/111003 CN2024111003W WO2025036282A1 WO 2025036282 A1 WO2025036282 A1 WO 2025036282A1 CN 2024111003 W CN2024111003 W CN 2024111003W WO 2025036282 A1 WO2025036282 A1 WO 2025036282A1
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Prior art keywords
dci
prs
rnti
field
indicate
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English (en)
French (fr)
Inventor
李辉
任晓涛
任斌
达人
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Publication of WO2025036282A1 publication Critical patent/WO2025036282A1/zh
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/25Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/40Resource management for direct mode communication, e.g. D2D or sidelink

Definitions

  • the present disclosure relates to the field of wireless communication technology, and in particular to a method for determining, indicating, device and storage medium for SL PRS resources.
  • SL PRS sidelink Positioning Reference Signal
  • the present invention provides a method for determining, a method for indicating, a device and a storage medium for SL PRS resources, so as to solve the problem of how to indicate SL PRS resource allocation.
  • the present disclosure provides a method for determining a direct link positioning reference signal SL PRS resource, which is applied to a terminal and includes:
  • the SL PRS resources allocated by the network device to the terminal are determined.
  • the DCI includes one or more of the following:
  • a first DCI where the first DCI is used to indicate an SL PRS resource in a shared resource pool
  • the second DCI is used to indicate the SL PRS resources in the dedicated resource pool.
  • the first DCI includes a first information field, and the first information field is used It is used to indicate whether there is an SL PRS resource in the time slot where at least one physical direct link shared channel PSSCH transmission is located.
  • the first information field includes a configuration index field and/or a hybrid automatic repeat request HARQ process number field.
  • 3 bits are used in the configuration index field to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • one bit is used in the HARQ process number field to indicate activation configuration authorization, and three bits other than the one bit are used to indicate whether there are SL PRS resources in the time slots where up to three PSSCH transmissions are located.
  • the cyclic redundancy check code CRC in the first DCI is scrambled by a direct link radio network temporary identifier SL-RNTI, a direct link configuration scheduling radio network temporary identifier SL-CS-RNTI, or a radio network temporary identifier SL-Pos-RNTI for direct link positioning.
  • the first information field includes an SL PRS indication field, and the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the first DCI when the CRC in the first DCI is scrambled by SL-Pos-RNTI, the first DCI is used to indicate SL PRS resources.
  • the first DCI is associated with a third DCI, and the PSSCH resources indicated by the third DCI and the SL PRS resources indicated by the first DCI are located in the same time slot.
  • the association relationship between the first DCI and the third DCI is predefined by the system or indicated by the network side.
  • the second DCI includes a resource pool index field and/or a time interval field.
  • the size of the resource pool index field in the second DCI is the same as the size of the resource pool index field in the first DCI; and/or,
  • the length of the second DCI is the same as the length of the first DCI.
  • the CRC in the second DCI is scrambled by a radio network temporary identifier SL-Pos-DP-RNTI for a direct link positioning dedicated resource pool.
  • the present disclosure further provides a method for indicating a direct link positioning reference signal SL PRS resource, which is applied to a network device, including:
  • Downlink control information DCI is sent to the terminal, wherein the DCI is used to indicate the SL PRS resources allocated by the network device to the terminal.
  • the DCI includes one or more of the following:
  • a first DCI where the first DCI is used to indicate an SL PRS resource in a shared resource pool
  • the second DCI is used to indicate the SL PRS resources in the dedicated resource pool.
  • the first DCI includes a first information field, and the first information field is used to indicate whether there is an SL PRS resource in the time slot where at least one physical direct link shared channel PSSCH transmission is located.
  • the first information field includes a configuration index field and/or a hybrid automatic repeat request HARQ process number field.
  • 3 bits are used in the configuration index field to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • one bit is used in the HARQ process number field to indicate activation configuration authorization, and three bits other than the one bit are used to indicate whether there are SL PRS resources in the time slots where up to three PSSCH transmissions are located.
  • the cyclic redundancy check code CRC in the first DCI is scrambled by a direct link radio network temporary identifier SL-RNTI, a direct link configuration scheduling radio network temporary identifier SL-CS-RNTI, or a radio network temporary identifier SL-Pos-RNTI for direct link positioning.
  • the first information field includes an SL PRS indication field, and the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the first DCI when the CRC in the first DCI is scrambled by SL-Pos-RNTI, the first DCI is used to indicate SL PRS resources.
  • the first DCI is associated with a third DCI, and the PSSCH resources indicated by the third DCI and the SL PRS resources indicated by the first DCI are located in the same time slot.
  • the association relationship between the first DCI and the third DCI is predefined by the system or indicated by the network side.
  • the second DCI includes a resource pool index field and/or a time interval field.
  • the size of the resource pool index field in the second DCI is the same as that of the first DCI.
  • the length of the second DCI is the same as the length of the first DCI.
  • the CRC in the second DCI is scrambled by a radio network temporary identifier SL-Pos-DP-RNTI for a direct link positioning dedicated resource pool.
  • the present disclosure further provides a 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 resources allocated by the network device to the terminal are determined.
  • the DCI includes one or more of the following:
  • a first DCI where the first DCI is used to indicate an SL PRS resource in a shared resource pool
  • the second DCI is used to indicate the SL PRS resources in the dedicated resource pool.
  • the first DCI includes a first information field, and the first information field is used to indicate whether there is an SL PRS resource in the time slot where at least one physical direct link shared channel PSSCH transmission is located.
  • the first information field includes a configuration index field and/or a hybrid automatic repeat request HARQ process number field.
  • 3 bits are used in the configuration index field to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • one bit is used in the HARQ process number field to indicate activation configuration authorization, and three bits other than the one bit are used to indicate whether there are SL PRS resources in the time slots where up to three PSSCH transmissions are located.
  • the cyclic redundancy check code CRC in the first DCI is scrambled by a direct link radio network temporary identifier SL-RNTI, a direct link configuration scheduling radio network temporary identifier SL-CS-RNTI, or a radio network temporary identifier SL-Pos-RNTI for direct link positioning.
  • the first information field includes an SL PRS indication field, and the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the first DCI is used to indicate SL PRS resources.
  • the first DCI is associated with a third DCI, and the PSSCH resources indicated by the third DCI and the SL PRS resources indicated by the first DCI are located in the same time slot.
  • the association relationship between the first DCI and the third DCI is predefined by the system or indicated by the network side.
  • the second DCI includes a resource pool index field and/or a time interval field.
  • the size of the resource pool index field in the second DCI is the same as the size of the resource pool index field in the first DCI; and/or,
  • the length of the second DCI is the same as the length of the first DCI.
  • the CRC in the second DCI is scrambled by a radio network temporary identifier SL-Pos-DP-RNTI for a direct link positioning dedicated resource pool.
  • the present disclosure further provides a network device, 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:
  • Downlink control information DCI is sent to the terminal, wherein the DCI is used to indicate the SL PRS resources allocated by the network device to the terminal.
  • the DCI includes one or more of the following:
  • a first DCI where the first DCI is used to indicate an SL PRS resource in a shared resource pool
  • the second DCI is used to indicate the SL PRS resources in the dedicated resource pool.
  • the first DCI includes a first information field, and the first information field is used to indicate whether there is an SL PRS resource in the time slot where at least one physical direct link shared channel PSSCH transmission is located.
  • the first information field includes a configuration index field and/or a hybrid automatic repeat request HARQ process number field.
  • 3 bits are used in the configuration index field to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • the HARQ process number field uses 1 bit to indicate the activation configuration grant, and uses the other 3 bits except the 1 bit to indicate up to 3 PSSCH transmissions. Whether there are SL PRS resources in the time slot where the input is located.
  • the cyclic redundancy check code CRC in the first DCI is scrambled by a direct link radio network temporary identifier SL-RNTI, a direct link configuration scheduling radio network temporary identifier SL-CS-RNTI, or a radio network temporary identifier SL-Pos-RNTI for direct link positioning.
  • the first information field includes an SL PRS indication field, and the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the first DCI when the CRC in the first DCI is scrambled by SL-Pos-RNTI, the first DCI is used to indicate SL PRS resources.
  • the first DCI is associated with a third DCI, and the PSSCH resources indicated by the third DCI and the SL PRS resources indicated by the first DCI are located in the same time slot.
  • the association relationship between the first DCI and the third DCI is predefined by the system or indicated by the network side.
  • the second DCI includes a resource pool index field and/or a time interval field.
  • the size of the resource pool index field in the second DCI is the same as the size of the resource pool index field in the first DCI; and/or,
  • the length of the second DCI is the same as the length of the first DCI.
  • the CRC in the second DCI is scrambled by a radio network temporary identifier SL-Pos-DP-RNTI for a direct link positioning dedicated resource pool.
  • the present disclosure further provides a device for determining a direct link positioning reference signal SL PRS resource, comprising:
  • a receiving unit configured to receive downlink control information DCI sent by a network device
  • a determination unit is used to determine the SL PRS resources allocated to the terminal by the network device based on the DCI.
  • the DCI includes one or more of the following:
  • a first DCI where the first DCI is used to indicate an SL PRS resource in a shared resource pool
  • the second DCI is used to indicate the SL PRS resources in the dedicated resource pool.
  • the first DCI includes a first information field, and the first information field is used to indicate whether there is at least one physical direct link shared channel PSSCH transmission in the time slot SL PRS Resources.
  • the first information field includes a configuration index field and/or a hybrid automatic repeat request HARQ process number field.
  • 3 bits are used in the configuration index field to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • one bit is used in the HARQ process number field to indicate activation configuration authorization, and three bits other than the one bit are used to indicate whether there are SL PRS resources in the time slots where up to three PSSCH transmissions are located.
  • the cyclic redundancy check code CRC in the first DCI is scrambled by a direct link radio network temporary identifier SL-RNTI, a direct link configuration scheduling radio network temporary identifier SL-CS-RNTI, or a radio network temporary identifier SL-Pos-RNTI for direct link positioning.
  • the first information field includes an SL PRS indication field, and the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the first DCI when the CRC in the first DCI is scrambled by SL-Pos-RNTI, the first DCI is used to indicate SL PRS resources.
  • the first DCI is associated with a third DCI, and the PSSCH resources indicated by the third DCI and the SL PRS resources indicated by the first DCI are located in the same time slot.
  • the association relationship between the first DCI and the third DCI is predefined by the system or indicated by the network side.
  • the second DCI includes a resource pool index field and/or a time interval field.
  • the size of the resource pool index field in the second DCI is the same as the size of the resource pool index field in the first DCI; and/or,
  • the length of the second DCI is the same as the length of the first DCI.
  • the CRC in the second DCI is scrambled by a radio network temporary identifier SL-Pos-DP-RNTI for a direct link positioning dedicated resource pool.
  • the present disclosure further provides a device for indicating a direct link positioning reference signal SL PRS resource, comprising:
  • a sending unit is used to send downlink control information DCI to the terminal, wherein the DCI is used to indicate the network device Prepare SL PRS resources allocated to the terminal.
  • the DCI includes one or more of the following:
  • a first DCI where the first DCI is used to indicate an SL PRS resource in a shared resource pool
  • the second DCI is used to indicate the SL PRS resources in the dedicated resource pool.
  • the first DCI includes a first information field, and the first information field is used to indicate whether there is an SL PRS resource in the time slot where at least one physical direct link shared channel PSSCH transmission is located.
  • the first information field includes a configuration index field and/or a hybrid automatic repeat request HARQ process number field.
  • 3 bits are used in the configuration index field to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • one bit is used in the HARQ process number field to indicate activation configuration authorization, and three bits other than the one bit are used to indicate whether there are SL PRS resources in the time slots where up to three PSSCH transmissions are located.
  • the cyclic redundancy check code CRC in the first DCI is scrambled by a direct link radio network temporary identifier SL-RNTI, a direct link configuration scheduling radio network temporary identifier SL-CS-RNTI, or a radio network temporary identifier SL-Pos-RNTI for direct link positioning.
  • the first information field includes an SL PRS indication field, and the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the first DCI when the CRC in the first DCI is scrambled by SL-Pos-RNTI, the first DCI is used to indicate SL PRS resources.
  • the first DCI is associated with a third DCI, and the PSSCH resources indicated by the third DCI and the SL PRS resources indicated by the first DCI are located in the same time slot.
  • the association relationship between the first DCI and the third DCI is predefined by the system or indicated by the network side.
  • the second DCI includes a resource pool index field and/or a time interval field.
  • the size of the resource pool index field in the second DCI is the same as the size of the resource pool index field in the first DCI; and/or,
  • the length of the second DCI is the same as the length of the first DCI.
  • the CRC in the second DCI is scrambled by a radio network temporary identifier SL-Pos-DP-RNTI for a direct link positioning dedicated resource pool.
  • the present disclosure also provides a non-transitory readable storage medium, which stores a computer program, and the computer program is used to enable a processor to execute the method for determining SL PRS resources as described in the first aspect, or execute the method for indicating SL PRS resources as described in the second aspect.
  • the present disclosure further provides a communication device, in which a computer program is stored, and the computer program is used to enable the communication device to execute the method for determining SL PRS resources as described in the first aspect, or execute the method for indicating SL PRS resources as described in the second aspect.
  • the present disclosure also provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, wherein the computer program is used to enable the processor to execute the method for determining SL PRS resources as described in the first aspect, or to execute the method for indicating SL PRS resources as described in the second aspect.
  • the present disclosure also provides a chip product, in which a computer program is stored, and the computer program is used to enable the chip product to execute the method for determining SL PRS resources as described in the first aspect, or execute the method for indicating SL PRS resources as described in the second aspect.
  • the present invention provides a method for determining, a method for indicating, an apparatus and a storage medium for SL PRS resources.
  • the network device can indicate the allocated SL PRS resources to the terminal through DCI, so that the terminal can determine the allocation of SL PRS resources accordingly, and further complete the direct link positioning.
  • FIG1 is a flow chart of a method for determining SL PRS resources provided in an embodiment of the present disclosure
  • FIG2 is a schematic diagram of a flow chart of a method for indicating SL PRS resources provided in an embodiment of the present disclosure
  • FIG3 is a diagram showing an example of resource indication provided by an embodiment of the present disclosure.
  • FIG4 is a schematic diagram of the structure of a terminal provided in an embodiment of the present disclosure.
  • FIG5 is a schematic diagram of the structure of a network device provided in an embodiment of the present disclosure.
  • FIG6 is a schematic diagram of the structure of a device for determining SL PRS resources provided in an embodiment of the present disclosure
  • Figure 7 is a schematic diagram of the structure of the SL PRS resource indication device 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.
  • the terms “first”, “second”, etc. are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present disclosure can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first” and “second” are generally of the same type, and the number of objects is not limited.
  • the first object can be one or more.
  • the base station indicates the SL resources used for data transmission to the terminal through the downlink control information (Downlink Control Information, DCI) format 3_0 signaling, and the terminal uses this SL resource to communicate with other terminals.
  • DCI Downlink Control Information
  • DCI format 3_0 The information fields contained in DCI format 3_0 are shown in Table 1, including: resource pool index field, time interval field, time domain resource allocation field, frequency domain subchannel indication field, frequency domain resource allocation field, physical uplink control channel (Physical Uplink Control Channel, PUCCH) resource indication field, physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH) and PUCCH time slot interval field, hybrid self Hybrid Automatic Repeat reQuest (HARQ) process number field, new data indication field, configuration index field, and cumulative side grant index field.
  • PUCCH Physical Uplink Control Channel
  • PSFCH Physical Sidelink Feedback Channel
  • HARQ hybrid self Hybrid Automatic Repeat reQuest
  • the network side needs to further indicate the allocation of SL PRS resources.
  • the allocation of SL PRS resources may be inconsistent with the allocation of SL communication resources. Therefore, the relevant SL resource indication scheme cannot effectively distinguish the resource allocation of data from the resource allocation of SL PRS. If the transmission times of data and SL PRS are inconsistent, it is impossible to indicate.
  • FIG1 is a flow chart of a method for determining SL PRS resources provided by an embodiment of the present disclosure. The method can be applied to a terminal. As shown in FIG1 , the method includes the following steps:
  • Step 100 Receive downlink control information DCI sent by a network device.
  • Step 101 Determine the SL PRS resources allocated to the terminal by the network device based on DCI.
  • a network device e.g., a base station
  • the DCI may simultaneously indicate the resource allocation of the physical sidelink shared channel (PSSCH) (or SL PSSCH) and the resource allocation of the SL PRS.
  • PSSCH physical sidelink shared channel
  • SL PSSCH resource allocation of the SL PRS
  • the DCI includes one or more of the following:
  • the first DCI is used to indicate the SL PRS resources in the shared resource pool
  • the second DCI is used to indicate the SL PRS resources in the dedicated resource pool.
  • the DCI in the embodiment of the present disclosure can be used for a shared resource pool and/or a dedicated resource pool.
  • the dedicated resource pool and the shared resource pool are two types of resource pools that can be used for SL-PRS transmission.
  • the dedicated resource pool refers to a resource pool dedicated to SL PRS transmission
  • the shared resource pool refers to a resource pool shared by SL PRS transmission and SL data transmission.
  • the dedicated resource pool includes SL-PRS resources and control channel resources.
  • the dedicated resource pool is only used to transmit SL-PRS and associated control channels/information (such as physical
  • the shared resource pool includes SL-PRS resources, data transmission resources and associated control channels/information.
  • the shared resource pool can transmit both SL-PRS and SL data, such as PSSCH or PSFCH.
  • the first DCI can be an existing DCI format 3_0, or a DCI designed based on DCI format 3_0, which is used to indicate the SL PRS resources in the shared resource pool.
  • the second DCI can be a DCI different from the existing DCI format 3_0, used to indicate the SL PRS resources in the dedicated resource pool.
  • the network device may indicate the SL PRS resources by using different Radio Network Temporary Identifiers (RNTI) to scramble the cyclic redundancy check code (CRC) of the DCI, using the bit value of a specific information field in the DCI to indicate the SL PRS resources, introducing the SL PRS indication field in the DCI, using a dedicated DCI, or a combination of multiple methods.
  • RNTI Radio Network Temporary Identifiers
  • CRC cyclic redundancy check code
  • the terminal may also determine the SL PRS resources based on the RNTI scrambled CRC, the bit value of a specific information field in the DCI, the SL PRS indication field, the dedicated DCI, or a combination of multiple methods.
  • the method for determining SL PRS resources provided in the embodiment of the present disclosure is such that the network device can indicate the allocated SL PRS resources to the terminal through DCI, so that the terminal can determine the allocation status of the SL PRS resources accordingly, and further complete the direct link positioning.
  • the first DCI includes a first information field, and the first information field is used to indicate whether there are SL PRS resources in the time slot where at least one PSSCH transmission is located.
  • the first information field is not specifically limited here, and it can be one or some specific information fields in the DCI.
  • the network device can use the first information field to indicate whether there are SL PRS resources in the time slot where at least one PSSCH transmission is located, so that the terminal can determine the allocation of SL PRS resources through the first information field.
  • the number of PSSCH transmissions may be determined by the time domain resource allocation field in the DCI.
  • SL PRS resources in the time slot where a PSSCH transmission is located. It can also be understood that a transmission (through link transmission) includes data transmission and SL PRS transmission. There is no SL PRS resource in the time slot, which can also be understood as one transmission (through link transmission) only includes data transmission and does not include SL PRS transmission.
  • the n bits in the first information field may indicate whether there is an SL PRS resource in the time slot where each PSSCH transmission is located.
  • the number of bits in the first information field may be greater than or equal to n.
  • the first information field includes a configuration index field and/or a HARQ process number field.
  • 3 bits are used in the configuration index field to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • the configuration index field contains 3 bits, each bit corresponds to whether each transmission includes SL PRS transmission in up to 3 transmissions.
  • the number of transmissions can be determined by the time domain resource allocation field in the DCI. Assuming that the time domain resource allocation field in the DCI indicates 3 transmissions, and the configuration index field indicates "010", it means that the first and third transmissions only include data transmission, and the second transmission includes both data transmission and SL PRS transmission; if the time domain resource allocation field in the DCI indicates 2 transmissions, then the 2 bits specified in the configuration index field can be effective, for example, only the first 2 bits are effective. At this time, if the configuration index field indicates "101", it means that the first transmission includes both data transmission and SL PRS transmission, and the second transmission includes only data transmission.
  • one bit is used in the HARQ process number field to indicate activation of the configuration authorization, and three bits other than the one bit are used to indicate whether there are SL PRS resources in the time slots where up to three PSSCH transmissions are located.
  • the HARQ process number field occupies 4 bits, and the first bit can be used to indicate the activation configuration authorization.
  • Each of the next 3 bits corresponds to whether each transmission contains SL PRS in up to 3 transmissions, as shown in Table 2.
  • the CRC in the first DCI may be scrambled by a direct link radio network temporary identifier (SL-RNTI), a direct link configuration scheduling radio network temporary identifier (SL-CS-RNTI), or a radio network temporary identifier for direct link positioning (SL-Pos-RNTI).
  • SL-RNTI direct link radio network temporary identifier
  • SL-CS-RNTI direct link configuration scheduling radio network temporary identifier
  • SL-Pos-RNTI radio network temporary identifier for direct link positioning
  • SL-Pos-RNTI can be any RNTI used for direct link positioning, and its specific name and form are not limited in this disclosure.
  • the first information domain includes an SL PRS indication domain, and the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the SL PRS indication field may be a newly added information field dedicated to indicating SL PRS resources.
  • the SL PRS indication field may include multiple bits (e.g., 3 bits), which are used to indicate whether SL PRS transmission is included in at least one transmission.
  • the network device can use SL-Pos-RNTI to scramble the CRC of the first DCI (including the SL PRS indication field) so that the terminal can determine the SL PRS resources based on the SL PRS indication field in the first DCI.
  • the CRC in the first DCI is scrambled by SL-Pos-RNTI
  • the first DCI is used to indicate SL PRS resources.
  • the first DCI may be an existing DCI format 3_0, and the network device may scramble the CRC of the DCI through different RNTIs for different resource allocations.
  • the DCI format 3_0 with CRC scrambled by SL-Pos-RNTI is only used to indicate the resource allocation of SL PRS, and is not used to indicate the resource allocation of data transmission, that is, the time domain resource allocation domain and the frequency domain resource allocation domain in the DCI format 3_0 both indicate SL PRS resources; the DCI format 3_0 with CRC scrambled by SL-RNTI or SL-CS-RNTI can be used to indicate the resource allocation of data transmission.
  • the first DCI is associated with a third DCI, and the PSSCH resources indicated by the third DCI and the SL PRS resources indicated by the first DCI are located in the same time slot.
  • the first DCI only indicates SL PRS resources
  • the third DCI only indicates PSSCH resources.
  • the associated first DCI and third DCI may indicate that the resources indicated by the two DCIs are located in the same time slot.
  • the association relationship between the first DCI and the third DCI may be predefined by the system or indicated by the network side.
  • the second DCI includes a resource pool index field and/or a time interval field.
  • the dedicated resource pool does not contain PSSCH resources.
  • the network device can use a new DCI (second DCI) to indicate SL PRS resources.
  • the terminal can determine the SL PRS resources in the dedicated resource pool according to the second DCI.
  • the second DCI contains at least a resource pool index field and/or a time interval field.
  • the meanings of the resource pool index field and the time interval field are similar to those of DCI format 3_0, except that the resources used for indication are different.
  • the second DCI may also include other information fields to indicate more detailed SL PRS resource information.
  • the second DCI may include an indication of the time slot where the SL PRS resource is located, or the symbol position of the SL PRS resource in the time slot, or the SL PRS resource index, or the comb value of the SL PRS resource, etc.
  • the size of the resource pool index field in the second DCI is the same as the size of the resource pool index field in the first DCI; and/or the length of the second DCI is the same as the length of the first DCI. If the length of the second DCI is different from the length of the first DCI, the second DCI may be filled in The length of the DCI is padded to the same length as the first DCI.
  • the CRC in the second DCI may be scrambled by a radio network temporary identifier (SL-Pos-DP-RNTI) for direct link positioning dedicated resource pool.
  • the SL-Pos-DP-RNTI may be any RNTI used for direct link positioning and for indicating SL PRS resources in the dedicated resource pool, and its specific name and form are not limited in this disclosure.
  • the DCI design for shared resource pool and/or dedicated resource pool proposed in the present disclosure.
  • new RNTI setting special bit values
  • introducing new SL PRS indication domain and other methods it not only ensures compatibility with existing terminals, but also realizes resource allocation that can indicate SL communication and SL positioning for the shared resource pool at the same time; for the dedicated resource pool, it can further indicate the time domain location information of SL PRS resources. It can be used for a variety of SL positioning technologies.
  • FIG2 is a flow chart of a method for indicating SL PRS resources provided by an embodiment of the present disclosure.
  • the method can be applied to a network device (e.g., a base station). As shown in FIG2 , the method includes the following steps:
  • Step 200 Send downlink control information DCI to the terminal.
  • DCI is used to indicate the SL PRS resources allocated to the terminal by the network device.
  • the DCI includes one or more of the following:
  • the first DCI is used to indicate the SL PRS resources in the shared resource pool
  • the second DCI is used to indicate the SL PRS resources in the dedicated resource pool.
  • the first DCI includes a first information field, and the first information field is used to indicate whether there are SL PRS resources in the time slot where at least one physical direct link shared channel PSSCH transmission is located.
  • the first information field includes a configuration index field and/or a hybrid automatic repeat request HARQ process number field.
  • 3 bits are used in the configuration index field to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • 1 bit is used in the HARQ process number field to indicate activation of the configuration grant, and the other 3 bits except 1 bit are used to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • the cyclic redundancy check code CRC in the first DCI is scrambled by the direct link radio network temporary identifier SL-RNTI, the direct link configuration scheduling radio network temporary identifier SL-CS-RNTI, or the radio network temporary identifier SL-Pos-RNTI used for direct link positioning.
  • the first information domain includes an SL PRS indication domain, and the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the first DCI when the CRC in the first DCI is scrambled by SL-Pos-RNTI, the first DCI is used to indicate SL PRS resources.
  • the first DCI is associated with a third DCI, and the PSSCH resources indicated by the third DCI and the SL PRS resources indicated by the first DCI are located in the same time slot.
  • the association relationship between the first DCI and the third DCI is predefined by the system or indicated by the network side.
  • the second DCI includes a resource pool index field and/or a time interval field.
  • the size of the resource pool index field in the second DCI is the same as the size of the resource pool index field in the first DCI; and/or,
  • the length of the second DCI is the same as the length of the first DCI.
  • the CRC in the second DCI is scrambled by a radio network temporary identifier SL-Pos-DP-RNTI for a direct link positioning dedicated resource pool.
  • DCI format 3_0 is used to indicate both SL data transmission resource allocation and SL PRS resource allocation.
  • the configuration index field in DCI format 3_0 is used to indicate whether the corresponding transmission contains SL PRS resources.
  • This configuration index field contains 3 bits, and each bit corresponds to whether each transmission contains SL PRS in up to 3 transmissions. The number of transmissions is determined by the time domain resource allocation field in the DCI. For example, the time domain resource allocation field indicates 3 transmissions, and the configuration index field indicates "010", which means the 1st and 2nd transmissions.
  • the 3 transmissions only include data transmission (only PSSCH resources), and the 2 transmission includes both data transmission and SL PRS transmission; if the resource allocation field indicates 2 transmissions, only the first 2 bits in the configuration index field are effective. If the configuration index field indicates "101" at this time, it means that the 1 transmission includes both data transmission and SL PRS transmission, and the 2 transmission only includes data transmission. In this scheme, it is required that the configuration index field always exists in the DCI format 3_0 with CRC scrambled by SL-RNTI.
  • the HARQ process number field in DCI format 3_0 is used to indicate whether the corresponding transmission contains SL PRS resources.
  • This HARQ process number field occupies 4 bits, and uses values other than "0000” and "1111” to indicate whether the corresponding transmission contains SL PRS resources (because "0000” indicates activation of configuration authorization, and "1111” indicates deactivation of configuration authorization).
  • One method is to use the first bit as 0 to indicate activation of configuration authorization, and each of the next three bits corresponds to whether each transmission contains SL PRS in up to three transmissions, as shown in Table 2.
  • FIG3 is an example diagram of resource indication provided by an embodiment of the present disclosure.
  • the terminal determines the time slot where the SL PSSCH resource is located according to the time domain resource allocation field and the frequency domain resource allocation field in the DCI, and determines whether there is a SL PRS resource in the corresponding time slot according to the indication of the configuration index field. Further, the terminal indicates the PSCCH resources and SL PRS resources allocated by the base station to other terminals through SCI format 1-A.
  • the SL PRS resource allocation is indicated by setting a special value in the existing DCI domain, which neither increases the number of blind detections of the terminal nor increases the DCI overhead.
  • a new RNTI is introduced, which can be defined as SL-Pos-RNTI.
  • the DCI format 3_0 whose CRC is scrambled by this SL-Pos-RNTI contains the SL PRS indication field.
  • This SL PRS indication field can be a new field added in the current DCI format 3_0.
  • the SL PRS indication field contains 3 bits, and each bit corresponds to whether each transmission contains SL PRS in up to 3 transmissions. The number of transmissions is determined by the time domain resource allocation field in the DCI.
  • the time domain resource allocation field indicates 3 transmissions
  • the SL PRS indication field indicates "010" which means that the 1st and 3rd transmissions only contain data transmission, and the 2nd transmission contains both data transmission and SL PRS transmission; if the resource allocation field indicates 2 transmissions, the SL PRS indication Only the first two bits in the field are valid. If the SL PRS indication field indicates "101" at this time, it means that the first transmission includes both data transmission and SL PRS transmission, and the second transmission only includes data transmission.
  • the terminal When the terminal receives this DCI format 3_0, it determines the time slot where the SL PSSCH resource is located based on the time domain resource allocation field and frequency domain resource allocation field in the DCI, and determines whether there is an SL PRS resource in the corresponding time slot based on the indication of the SL PRS indication field. Further, the terminal indicates the PSCCH resources and SL PRS resources allocated by the base station to other terminals through SCI format 1-A.
  • the base station configures this SL-Pos-RNTI through RRC, the SL PRS indication field in the DCI format 3_0 with CRC scrambled by SL-CS-RNTI is reserved (i.e., the bit is invalid). This DCI is used for activation or release of SL configuration authorization in the same way as the existing one. If the base station configures this SL-Pos-RNTI through RRC, the SL PRS indication field in the DCI format 3_0 with CRC scrambled by SL-RNTI is reserved (i.e., the bit is invalid). This DCI is used for dynamic scheduling resource allocation for SL communication in the same way as the existing one.
  • DCI format 3_0 with CRC scrambled by SL-Pos-RNTI is used to indicate both the resource allocation of PSSCH for SL communication and the resource allocation of SL PRS for SL positioning.
  • a new RNTI is introduced, which can be defined as SL-Pos-RNTI.
  • DCI format 3_0 with CRC scrambled by different RNTIs is used for different resource allocations.
  • DCI format 3_0 with CRC scrambled by this SL-Pos-RNTI is used to indicate SL PRS resource allocation.
  • the time domain resource allocation and frequency domain resource allocation in Table 1 correspond to the time domain and frequency domain positions where the SL PRS resources are located.
  • the terminal receives this DCI format 3_0, it determines the time slot where the SL PRS resources are located according to the time domain resource allocation domain and frequency domain resource allocation domain in the DCI.
  • DCI format 3_0 with CRC scrambled by SL-RNTI is used to indicate SL PSSCH resource allocation.
  • the terminal receives this DCI format 3_0, it determines the time slot where the PSSCH resources are located according to the time domain resource allocation domain and frequency domain resource allocation domain in the DCI. Further, the terminal indicates the PSSCH resources and SL PRS resources allocated by the base station to other terminals through SCI format 1-A.
  • the system predefines or indicates that there is an association between the two DCIs (DCI format 3_0 with CRC scrambled by SL-Pos-RNTI and DCI format 3_0 with CRC scrambled by SL-RNTI) to ensure that the terminal determines that the PSSCH resource and SL PRS resource are located in the same time slot.
  • DCI format 3_0 with CRC scrambled by SL-CS-RNTI is used to indicate SL PSSCH resource allocation.
  • the terminal determines the time slot where the SL PSSCH resource and SL PRS resource are located in combination with the DCI format 3_0 indication with CRC scrambled by SL-Pos-RNTI. Further, the terminal indicates the PSSCH resource and SL PRS resource allocated by the base station to other terminals through SCI format 1-A.
  • the resource allocation can be indicated by combining the above examples. For example, combining Example 1 with Example 3, scrambling the DCI by introducing SL-Pos-RNTI, and using the method of setting the special value in the DCI domain in Example 1 to implement SL PRS resource allocation. For details, please refer to the above examples, which will not be repeated here.
  • the dedicated resource pool does not contain PSSCH resources.
  • the base station does not need to indicate PSSCH resources, but only needs to indicate SL PRS resources.
  • a new DCI can be used to indicate SL PRS resources, assuming that it is defined as DCI format 3_2.
  • This DCI contains at least a resource pool index field and a time interval field. Among them, the size of the resource pool index field is the same as that in DCI format 3_0, and the length of this DCI is the same as that of DCI format 3_0. If different, the length of this DCI is padded to the length of DCI format 3_0 by padding.
  • This DCI also includes an indication of the time slot where the SL PRS resource is located, and may also include the symbol position of the SL PRS resource in the time slot, or include the SL PRS resource index, or include the comb value of the SL PRS resource.
  • the terminal When the terminal receives the DCI whose CRC is scrambled by SL-RNTI, it determines the resource pool scheduled by this DCI by parsing the resource pool index field of this DCI. If this index indicates a dedicated resource pool, the terminal determines that this DCI is DCI format 3-2. The terminal further parses the time slot where the SL PRS resource is located, the symbol position of the SL PRS resource in the time slot, or the SL PRS resource index. After the terminal determines the SL PRS resource, it indicates the SL PRS resource allocated by the base station to other terminals through the SCI.
  • a new RNTI is introduced, which can be defined as SL-Pos-DP-RNTI, for scrambling the DCI of the dedicated resource pool.
  • the terminal receives the DCI whose CRC is scrambled by SL-Pos-DP-RNTI, the terminal determines that this DCI is used for SL PRS resource allocation of the dedicated resource pool.
  • This DCI can contain the resource pool index.
  • the resource pool index field is 0 bit.
  • the size of the resource pool index field is the same as in DCI format 3_0, and the length of this DCI is the same as DCI format 3_0. If different, the length of this DCI is padded to the length of DCI format 3_0.
  • This DCI also includes an indication of the time slot where the SL PRS resource is located, and may also include the symbol position of the SL PRS resource in the time slot, or include the SL PRS resource index, or include the comb value of the SL PRS resource.
  • the terminal When the terminal receives the DCI whose CRC is scrambled by SL-Pos-DP-RNTI, the terminal determines that this DCI is used for SL PRS resource allocation in the dedicated resource pool. The terminal further parses the time slot where the SL PRS resource is located, the symbol position of the SL PRS resource in the time slot, or the SL PRS resource index. After the terminal determines the SL PRS resource, it indicates the SL PRS resource allocated by the base station to other terminals through SCI.
  • the methods and devices provided in the various embodiments of the present disclosure are based on the same application concept. Since the methods and devices solve problems based on similar principles, the implementation of the devices and methods can refer to each other, and the repeated parts will not be repeated.
  • FIG4 is a schematic diagram of the structure of a terminal provided in an embodiment of the present disclosure.
  • the terminal includes a memory 420 , a transceiver 410 , and a processor 400 ; wherein the processor 400 and the memory 420 may also be arranged physically separately.
  • the memory 420 is used to store computer programs; the transceiver 410 is used to send and receive data under the control of the processor 400.
  • the transceiver 410 is used to receive and send data under the control of the processor 400 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 400 and various circuits of memory represented by memory 420 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits together, which are all well known in the art, and therefore, the present disclosure will not further describe them.
  • the bus interface provides an interface.
  • the transceiver 410 can be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, and these transmission media include transmission media such as wireless channels, wired channels, and optical cables.
  • the user interface 430 can also be an interface that can be connected to external and internal devices, and the connected devices include but are not limited to keypads, displays, speakers, microphones, joysticks, etc.
  • the processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 400 when performing operations.
  • the processor 400 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).
  • the processor can also adopt a multi-core architecture.
  • the processor 400 calls the computer program stored in the memory 420 to execute any method provided by the embodiments of the present disclosure according to the obtained executable instructions, for example: receiving downlink control information DCI sent by the network device; determining the SL PRS resources allocated to the terminal by the network device based on the DCI.
  • the DCI includes one or more of the following:
  • the first DCI is used to indicate the SL PRS resources in the shared resource pool
  • the second DCI is used to indicate the SL PRS resources in the dedicated resource pool.
  • the first DCI includes a first information field, and the first information field is used to indicate whether there is an SL PRS resource in the time slot where at least one physical direct link shared channel PSSCH transmission is located.
  • the first information field includes a configuration index field and/or a hybrid automatic repeat request HARQ process number field.
  • 3 bits are used in the configuration index field to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • 1 bit is used in the HARQ process number field to indicate the activation configuration authorization, and the other 3 bits except 1 bit are used to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • the cyclic redundancy check code CRC in the first DCI is scrambled by the direct link radio network temporary identifier SL-RNTI, the direct link configuration scheduling radio network temporary identifier SL-CS-RNTI, or the radio network temporary identifier SL-Pos-RNTI used for direct link positioning.
  • the first information domain includes an SL PRS indication domain, and the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the CRC in the first DCI is scrambled by SL-Pos-RNTI
  • the first DCI is used to indicate SL PRS resources.
  • the first DCI is associated with a third DCI, and the PSSCH resources indicated by the third DCI and the SL PRS resources indicated by the first DCI are located in the same time slot.
  • the association relationship between the first DCI and the third DCI is predefined by the system or indicated by the network side.
  • the second DCI includes a resource pool index field and/or a time interval field.
  • the size of the resource pool index field in the second DCI is the same as the size of the resource pool index field in the first DCI; and/or,
  • the length of the second DCI is the same as the length of the first DCI.
  • the CRC in the second DCI is scrambled by a radio network temporary identifier SL-Pos-DP-RNTI for a direct link positioning dedicated resource pool.
  • FIG5 is a schematic diagram of the structure of a network device provided in an embodiment of the present disclosure.
  • the network device includes a memory 520, a transceiver 510, and a processor 500; wherein the processor 500 and the memory 520 may also be arranged physically separately.
  • the memory 520 is used to store computer programs; the transceiver 510 is used to send and receive data under the control of the processor 500.
  • the transceiver 510 is used to receive and send data under the control of the processor 500 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 500 and various circuits of memory represented by memory 520 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 in this disclosure.
  • the bus interface provides an interface.
  • the transceiver 510 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which may include a wireless channel, a wired channel, an optical cable, and other transmission media.
  • the processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.
  • the processor 500 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor may also adopt a multi-core architecture.
  • the processor 500 calls the computer program stored in the memory 520 to execute any method provided by the embodiments of the present disclosure according to the obtained executable instructions, for example: sending downlink control information DCI to the terminal, where the DCI is used to indicate the SL PRS resources allocated to the terminal by the network device.
  • the DCI includes one or more of the following:
  • the first DCI is used to indicate the SL PRS resources in the shared resource pool
  • the second DCI is used to indicate the SL PRS resources in the dedicated resource pool.
  • the first DCI includes a first information field, and the first information field is used to indicate whether there are SL PRS resources in the time slot where at least one physical direct link shared channel PSSCH transmission is located.
  • the first information field includes a configuration index field and/or a hybrid automatic repeat request HARQ process number field.
  • 3 bits are used in the configuration index field to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • 1 bit is used in the HARQ process number field to indicate the activation configuration authorization, and the other 3 bits except 1 bit are used to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • the cyclic redundancy check code CRC in the first DCI is scrambled by the direct link radio network temporary identifier SL-RNTI, the direct link configuration scheduling radio network temporary identifier SL-CS-RNTI, or the radio network temporary identifier SL-Pos-RNTI used for direct link positioning.
  • the first information domain includes an SL PRS indication domain, and the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the first DCI when the CRC in the first DCI is scrambled by SL-Pos-RNTI, the first DCI is used to indicate SL PRS resources.
  • the first DCI is associated with a third DCI, and the PSSCH resources indicated by the third DCI and the SL PRS resources indicated by the first DCI are located in the same time slot.
  • the association relationship between the first DCI and the third DCI is predefined by the system or indicated by the network side.
  • the second DCI includes a resource pool index field and/or a time interval field.
  • the size of the resource pool index field in the second DCI is the same as the size of the resource pool index field in the first DCI; and/or,
  • the length of the second DCI is the same as the length of the first DCI.
  • the CRC in the second DCI is scrambled by a radio network temporary identifier SL-Pos-DP-RNTI for a direct link positioning dedicated resource pool.
  • FIG6 is a schematic diagram of the structure of a device for determining SL PRS resources provided in an embodiment of the present disclosure. As shown in FIG6 , the device includes:
  • the receiving unit 600 is configured to receive downlink control information DCI sent by a network device;
  • the determination unit 610 is used to determine the SL PRS resources allocated to the terminal by the network device based on the DCI.
  • the DCI includes one or more of the following:
  • the first DCI is used to indicate the SL PRS resources in the shared resource pool
  • the second DCI is used to indicate the SL PRS resources in the dedicated resource pool.
  • the first DCI includes a first information field, and the first information field is used to indicate whether there is an SL PRS resource in the time slot where at least one physical direct link shared channel PSSCH transmission is located.
  • the first information field includes a configuration index field and/or a hybrid automatic repeat request HARQ process number field.
  • 3 bits are used in the configuration index field to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • 1 bit is used in the HARQ process number field to indicate the activation configuration authorization, and the other 3 bits except 1 bit are used to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • the cyclic redundancy check code CRC in the first DCI is scrambled by the direct link radio network temporary identifier SL-RNTI, the direct link configuration scheduling radio network temporary identifier SL-CS-RNTI, or the radio network temporary identifier SL-Pos-RNTI used for direct link positioning.
  • the first information domain includes an SL PRS indication domain, and the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the first DCI when the CRC in the first DCI is scrambled by SL-Pos-RNTI, the first DCI is used to indicate SL PRS resources.
  • the first DCI is associated with a third DCI, and the PSSCH resources indicated by the third DCI and the SL PRS resources indicated by the first DCI are located in the same time slot.
  • the association relationship between the first DCI and the third DCI is predefined by the system or indicated by the network side.
  • the second DCI includes a resource pool index field and/or a time interval field.
  • the size of the resource pool index field in the second DCI is the same as the size of the resource pool index field in the first DCI; and/or,
  • the length of the second DCI is the same as the length of the first DCI.
  • the CRC in the second DCI is scrambled by a radio network temporary identifier SL-Pos-DP-RNTI for a direct link positioning dedicated resource pool.
  • FIG. 7 is a schematic diagram of the structure of an indication device for SL PRS resources provided in an embodiment of the present disclosure. As shown in FIG. 7 , the device includes:
  • the sending unit 700 is used to send downlink control information DCI to the terminal, and the DCI is used to indicate the SL PRS resources allocated by the network device to the terminal.
  • the DCI includes one or more of the following:
  • the first DCI is used to indicate the SL PRS resources in the shared resource pool
  • the second DCI is used to indicate the SL PRS resources in the dedicated resource pool.
  • the first DCI includes a first information field, and the first information field is used to indicate whether there are SL PRS resources in the time slot where at least one physical direct link shared channel PSSCH transmission is located.
  • the first information field includes a configuration index field and/or a hybrid automatic repeat request HARQ process number field.
  • 3 bits are used in the configuration index field to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • 1 bit is used in the HARQ process number field to indicate the activation configuration authorization, and the other 3 bits except 1 bit are used to indicate whether there are SL PRS resources in the time slots where up to 3 PSSCH transmissions are located.
  • the cyclic redundancy check code CRC in the first DCI is scrambled by the direct link radio network temporary identifier SL-RNTI, the direct link configuration scheduling radio network temporary identifier SL-CS-RNTI, or the radio network temporary identifier SL-Pos-RNTI used for direct link positioning.
  • the first information domain includes an SL PRS indication domain, and the CRC in the first DCI is scrambled by SL-Pos-RNTI.
  • the first DCI when the CRC in the first DCI is scrambled by SL-Pos-RNTI, the first DCI is used to indicate SL PRS resources.
  • the first DCI is associated with a third DCI, and the PSSCH resources indicated by the third DCI and the SL PRS resources indicated by the first DCI are located in the same time slot.
  • the association relationship between the first DCI and the third DCI is predefined by the system or indicated by the network side.
  • the second DCI includes a resource pool index field and/or a time interval field.
  • the size of the resource pool index field in the second DCI is the same as the size of the resource pool index field in the first DCI; and/or,
  • the length of the second DCI is the same as the length of the first DCI.
  • the CRC in the second DCI is scrambled by a radio network temporary identifier SL-Pos-DP-RNTI for a direct link positioning dedicated resource pool.
  • each functional unit in each embodiment of the present disclosure 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.
  • a software product which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., which can store program code.
  • an embodiment of the present disclosure further provides a non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the methods provided in the above embodiments.
  • non-transitory readable storage medium 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 non-transitory readable storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.
  • magnetic storage such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.
  • optical storage such as CD, DVD, BD, HVD, etc.
  • semiconductor storage such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)
  • 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 (Universal Mobile Telecommunications) system, etc. 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
  • Universal Mobile Telecommunications Universal Mobile Telecommunications
  • WiMAX worldwide interoperability for microwave access
  • NR 5G New Radio
  • the terminal involved in the embodiments of the present disclosure 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 may also be different.
  • the terminal may be called a user equipment (UE).
  • a wireless terminal device may communicate with one or more core networks (CN) via a radio access network (RAN).
  • the wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device, for example, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and/or data with a radio access network.
  • Wireless terminal devices may also be referred to as systems, subscriber units, subscriber stations, mobile stations, mobile stations, remote stations, access points, remote terminal devices, access terminal devices, user terminal devices, user agents, and user devices, which are not limited in the embodiments of the present disclosure.
  • the network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services for terminals.
  • the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be named by other names.
  • the network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve 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 may also coordinate the attribute management of the air interface.
  • the network device involved in the embodiments of the present disclosure may be a Global System for Mobile communications (GSM) or The network equipment (Base Transceiver Station, BTS) in Code Division Multiple Access (Code Division Multiple Access, CDMA) may also be the network equipment (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or the evolutionary network equipment (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, the 5G base station (gNB) in the 5G network architecture (next generation system), or the home evolved Node B (Home evolved Node B, HeNB), relay node, home base station (femto), pico base station (pico), etc., which are not limited in the embodiments of the present disclosure.
  • the network equipment may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.
  • Network devices and terminals 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 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.
  • the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may take 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.) containing computer-usable program code.
  • a computer-usable storage media including but not limited to disk storage and optical storage, etc.
  • 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 generate instructions for implementing the process specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
  • Functional device 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 generate instructions for implementing the process specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
  • Functional device 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 generate instructions
  • 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 may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

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Abstract

本公开提供一种SL PRS资源的确定方法、指示方法、装置及存储介质,该SL PRS资源的确定方法包括:终端接收网络设备发送的下行控制信息DCI;基于所述DCI确定所述网络设备分配给所述终端的SL PRS资源。

Description

SL PRS资源的确定方法、指示方法、装置及存储介质
相关申请的交叉引用
本申请要求于2023年08月11日提交的申请号为202311014128.9,发明名称为“SL PRS资源的确定方法、指示方法、装置及存储介质”的中国专利申请的优先权,其通过引用方式全部并入本文。
技术领域
本公开涉及无线通信技术领域,尤其涉及一种SL PRS资源的确定方法、指示方法、装置及存储介质。
背景技术
为了在直通链路(sidelink,SL)系统中支持定位,需要引入用于定位的参考信号,定义为直通链路定位参考信号(sidelink Positioning Reference Signal,SL PRS)。引入SL PRS后,对于在网络覆盖内场景下的直通链路系统,网络侧需要进一步指示SL PRS资源的分配,以便终端确定使用的SL PRS资源,但目前对此并没有明确的技术方案。
发明内容
本公开提供一种SL PRS资源的确定方法、指示方法、装置及存储介质,用以解决如何指示SL PRS资源分配的问题。
第一方面,本公开提供一种直通链路定位参考信号SL PRS资源的确定方法,应用于终端,包括:
接收网络设备发送的下行控制信息DCI;
基于所述DCI确定所述网络设备分配给所述终端的SL PRS资源。
在一些实施例中,所述DCI包括以下一种或多种:
第一DCI,所述第一DCI用于指示共享资源池中的SL PRS资源;
第二DCI,所述第二DCI用于指示专用资源池中的SL PRS资源。
在一些实施例中,所述第一DCI中包含第一信息域,所述第一信息域用 于指示至少一次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
在一些实施例中,所述配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述HARQ进程号域中使用1个比特指示激活配置授权,并使用除所述1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
在一些实施例中,所述第一信息域包括SL PRS指示域,所述第一DCI中的CRC经过SL-Pos-RNTI加扰。
在一些实施例中,在所述第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,所述第一DCI用于指示SL PRS资源。
在一些实施例中,所述第一DCI与第三DCI相关联,所述第三DCI指示的PSSCH资源与所述第一DCI指示的SL PRS资源位于相同时隙。
在一些实施例中,所述第一DCI与所述第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
在一些实施例中,所述第二DCI中包含资源池索引域和/或时间间隔域。
在一些实施例中,所述第二DCI中资源池索引域的大小与所述第一DCI中资源池索引域的大小相同;和/或,
所述第二DCI的长度与所述第一DCI的长度相同。
在一些实施例中,所述第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
第二方面,本公开还提供一种直通链路定位参考信号SL PRS资源的指示方法,应用于网络设备,包括:
向终端发送下行控制信息DCI,所述DCI用于指示所述网络设备分配给所述终端的SL PRS资源。
在一些实施例中,所述DCI包括以下一种或多种:
第一DCI,所述第一DCI用于指示共享资源池中的SL PRS资源;
第二DCI,所述第二DCI用于指示专用资源池中的SL PRS资源。
在一些实施例中,所述第一DCI中包含第一信息域,所述第一信息域用于指示至少一次次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
在一些实施例中,所述配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述HARQ进程号域中使用1个比特指示激活配置授权,并使用除所述1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
在一些实施例中,所述第一信息域包括SL PRS指示域,所述第一DCI中的CRC经过SL-Pos-RNTI加扰。
在一些实施例中,在所述第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,所述第一DCI用于指示SL PRS资源。
在一些实施例中,所述第一DCI与第三DCI相关联,所述第三DCI指示的PSSCH资源与所述第一DCI指示的SL PRS资源位于相同时隙。
在一些实施例中,所述第一DCI与所述第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
在一些实施例中,所述第二DCI中包含资源池索引域和/或时间间隔域。
在一些实施例中,所述第二DCI中资源池索引域的大小与所述第一DCI 中资源池索引域的大小相同;和/或,
所述第二DCI的长度与所述第一DCI的长度相同。
在一些实施例中,所述第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
第三方面,本公开还提供一种终端,包括存储器,收发机,处理器;
存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
接收网络设备发送的下行控制信息DCI;
基于所述DCI确定所述网络设备分配给所述终端的SL PRS资源。
在一些实施例中,所述DCI包括以下一种或多种:
第一DCI,所述第一DCI用于指示共享资源池中的SL PRS资源;
第二DCI,所述第二DCI用于指示专用资源池中的SL PRS资源。
在一些实施例中,所述第一DCI中包含第一信息域,所述第一信息域用于指示至少一次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
在一些实施例中,所述配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述HARQ进程号域中使用1个比特指示激活配置授权,并使用除所述1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
在一些实施例中,所述第一信息域包括SL PRS指示域,所述第一DCI中的CRC经过SL-Pos-RNTI加扰。
在一些实施例中,在所述第一DCI中的CRC经过SL-Pos-RNTI加扰的 情况下,所述第一DCI用于指示SL PRS资源。
在一些实施例中,所述第一DCI与第三DCI相关联,所述第三DCI指示的PSSCH资源与所述第一DCI指示的SL PRS资源位于相同时隙。
在一些实施例中,所述第一DCI与所述第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
在一些实施例中,所述第二DCI中包含资源池索引域和/或时间间隔域。
在一些实施例中,所述第二DCI中资源池索引域的大小与所述第一DCI中资源池索引域的大小相同;和/或,
所述第二DCI的长度与所述第一DCI的长度相同。
在一些实施例中,所述第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
第四方面,本公开还提供一种网络设备,包括存储器,收发机,处理器;
存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
向终端发送下行控制信息DCI,所述DCI用于指示所述网络设备分配给所述终端的SL PRS资源。
在一些实施例中,所述DCI包括以下一种或多种:
第一DCI,所述第一DCI用于指示共享资源池中的SL PRS资源;
第二DCI,所述第二DCI用于指示专用资源池中的SL PRS资源。
在一些实施例中,所述第一DCI中包含第一信息域,所述第一信息域用于指示至少一次次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
在一些实施例中,所述配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述HARQ进程号域中使用1个比特指示激活配置授权,并使用除所述1个比特以外的其他3个比特分别指示至多3次PSSCH传 输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
在一些实施例中,所述第一信息域包括SL PRS指示域,所述第一DCI中的CRC经过SL-Pos-RNTI加扰。
在一些实施例中,在所述第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,所述第一DCI用于指示SL PRS资源。
在一些实施例中,所述第一DCI与第三DCI相关联,所述第三DCI指示的PSSCH资源与所述第一DCI指示的SL PRS资源位于相同时隙。
在一些实施例中,所述第一DCI与所述第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
在一些实施例中,所述第二DCI中包含资源池索引域和/或时间间隔域。
在一些实施例中,所述第二DCI中资源池索引域的大小与所述第一DCI中资源池索引域的大小相同;和/或,
所述第二DCI的长度与所述第一DCI的长度相同。
在一些实施例中,所述第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
第五方面,本公开还提供一种直通链路定位参考信号SL PRS资源的确定装置,包括:
接收单元,用于接收网络设备发送的下行控制信息DCI;
确定单元,用于基于所述DCI确定所述网络设备分配给终端的SL PRS资源。
在一些实施例中,所述DCI包括以下一种或多种:
第一DCI,所述第一DCI用于指示共享资源池中的SL PRS资源;
第二DCI,所述第二DCI用于指示专用资源池中的SL PRS资源。
在一些实施例中,所述第一DCI中包含第一信息域,所述第一信息域用于指示至少一次物理直通链路共享信道PSSCH传输所在的时隙中是否存在 SL PRS资源。
在一些实施例中,所述第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
在一些实施例中,所述配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述HARQ进程号域中使用1个比特指示激活配置授权,并使用除所述1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
在一些实施例中,所述第一信息域包括SL PRS指示域,所述第一DCI中的CRC经过SL-Pos-RNTI加扰。
在一些实施例中,在所述第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,所述第一DCI用于指示SL PRS资源。
在一些实施例中,所述第一DCI与第三DCI相关联,所述第三DCI指示的PSSCH资源与所述第一DCI指示的SL PRS资源位于相同时隙。
在一些实施例中,所述第一DCI与所述第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
在一些实施例中,所述第二DCI中包含资源池索引域和/或时间间隔域。
在一些实施例中,所述第二DCI中资源池索引域的大小与所述第一DCI中资源池索引域的大小相同;和/或,
所述第二DCI的长度与所述第一DCI的长度相同。
在一些实施例中,所述第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
第六方面,本公开还提供一种直通链路定位参考信号SL PRS资源的指示装置,包括:
发送单元,用于向终端发送下行控制信息DCI,所述DCI用于指示网络设 备分配给所述终端的SL PRS资源。
在一些实施例中,所述DCI包括以下一种或多种:
第一DCI,所述第一DCI用于指示共享资源池中的SL PRS资源;
第二DCI,所述第二DCI用于指示专用资源池中的SL PRS资源。
在一些实施例中,所述第一DCI中包含第一信息域,所述第一信息域用于指示至少一次次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
在一些实施例中,所述配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述HARQ进程号域中使用1个比特指示激活配置授权,并使用除所述1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,所述第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
在一些实施例中,所述第一信息域包括SL PRS指示域,所述第一DCI中的CRC经过SL-Pos-RNTI加扰。
在一些实施例中,在所述第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,所述第一DCI用于指示SL PRS资源。
在一些实施例中,所述第一DCI与第三DCI相关联,所述第三DCI指示的PSSCH资源与所述第一DCI指示的SL PRS资源位于相同时隙。
在一些实施例中,所述第一DCI与所述第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
在一些实施例中,所述第二DCI中包含资源池索引域和/或时间间隔域。
在一些实施例中,所述第二DCI中资源池索引域的大小与所述第一DCI中资源池索引域的大小相同;和/或,
所述第二DCI的长度与所述第一DCI的长度相同。
在一些实施例中,所述第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
第七方面,本公开还提供一种非瞬时可读存储介质,所述非瞬时可读存储介质存储有计算机程序,所述计算机程序用于使处理器执行如上所述第一方面所述的SL PRS资源的确定方法,或执行如上所述第二方面所述的SL PRS资源的指示方法。
第八方面,本公开还提供一种通信设备,所述通信设备中存储有计算机程序,所述计算机程序用于使通信设备执行如上所述第一方面所述的SL PRS资源的确定方法,或执行如上所述第二方面所述的SL PRS资源的指示方法。
第九方面,本公开还提供一种处理器可读存储介质,所述处理器可读存储介质存储有计算机程序,所述计算机程序用于使处理器执行如上所述第一方面所述的SL PRS资源的确定方法,或执行如上所述第二方面所述的SL PRS资源的指示方法。
第十方面,本公开还提供一种芯片产品,所述芯片产品中存储有计算机程序,所述计算机程序用于使芯片产品执行如上所述第一方面所述的SL PRS资源的确定方法,或执行如上所述第二方面所述的SL PRS资源的指示方法。
本公开提供的SL PRS资源的确定方法、指示方法、装置及存储介质,网络设备可以通过DCI向终端指示分配的SL PRS资源,从而终端可以据此确定SL PRS资源的分配情况,进而完成直通链路定位。
附图说明
为了更清楚地说明本公开实施例或相关技术中的技术方案,下面将对实施例或相关技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本公开实施例提供的SL PRS资源的确定方法的流程示意图;
图2为本公开实施例提供的SL PRS资源的指示方法的流程示意图;
图3为本公开实施例提供的资源指示示例图;
图4为本公开实施例提供的终端的结构示意图;
图5为本公开实施例提供的网络设备的结构示意图;
图6为本公开实施例提供的SL PRS资源的确定装置的结构示意图;
图7为本公开实施例提供的SL PRS资源的指示装置的结构示意图。
具体实施方式
本公开实施例中术语“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本公开实施例中术语“多个”是指两个或两个以上,其它量词与之类似。
本公开实施例中术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本公开的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本公开一部分实施例,并不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
目前,对于在网络覆盖内场景下的sidelink系统,基站通过下行控制信息(Downlink Control Information,DCI)format 3_0信令向终端指示用于数据传输的SL资源,终端使用此SL资源与其他终端进行通信。DCI format 3_0包含的信息域如表1所示,包括:资源池索引域,时间间隔域,时域资源分配域,频域子信道指示域,频域资源分配域,物理上行控制信道(Physical Uplink Control Channel,PUCCH)资源指示域,物理直通链路反馈信道(Physical Sidelink Feedback Channel,PSFCH)与PUCCH之间的时隙间隔域,混合自 动重传请求(Hybrid Automatic Repeat reQuest,HARQ)进程号域,新数据指示域,配置索引域,累积侧行授权索引域。
引入SL PRS后,网络侧需要进一步指示SL PRS资源的分配。SL PRS资源的分配可能与SL通信资源的分配不一致,因此,相关的SL资源指示方案无法有效区分数据的资源分配和SL PRS的资源分配,若数据和SL PRS的传输次数不一致,更是无法进行指示。
表1:DCI format 3_0的格式
图1为本公开实施例提供的SL PRS资源的确定方法的流程示意图,该方法可应用于终端,如图1所示,该方法包括如下步骤:
步骤100、接收网络设备发送的下行控制信息DCI。
步骤101、基于DCI确定网络设备分配给终端的SL PRS资源。
具体地,本公开针对SL PRS资源分配的指示问题提出一种解决方案,网络设备(例如:基站)可以向终端发送DCI,使用该DCI来指示SL PRS的资源分配情况。
在一些实施例中,该DCI可以同时指示物理直通链路共享信道(Physical Sidelink Shared Channel,PSSCH)(或称SL PSSCH)的资源分配和SL PRS的资源分配。
在一些实施例中,DCI包括以下一种或多种:
第一DCI,第一DCI用于指示共享资源池中的SL PRS资源;
第二DCI,第二DCI用于指示专用资源池中的SL PRS资源。
具体地,本公开实施例中的DCI可用于共享资源池和/或专用资源池,专用资源池和共享资源池是可以用于SL-PRS传输的两种资源池类型,本公开中,专用资源池指的是SL PRS传输专用的资源池,共享资源池指的是SL PRS传输与SL数据传输共享的资源池。在专用资源池中包含SL-PRS资源和控制信道资源,专用资源池只用于传输SL-PRS以及关联的控制信道/信息(如物 理直通链路控制信道(Physical Sidelink Control Channel,PSCCH)或直通链路控制信息(Sidelink Control Information,SCI))。在共享资源池中包含SL-PRS资源、数据传输的资源以及关联的控制信道/信息,共享资源池既可以传输SL-PRS,也可以传输SL数据,如PSSCH或PSFCH等。
其中,第一DCI可以是已有的DCI format 3_0,或者是基于DCI format 3_0设计的DCI,用于指示共享资源池中的SL PRS资源。
第二DCI可以是与已有DCI format 3_0不同的DCI,用于指示专用资源池中的SL PRS资源。
在一些实施例中,网络设备可以通过使用不同无线网络临时标识(Radio Network Temporary Identifier,RNTI)加扰DCI的循环冗余校验码(Cyclic Redundancy Check,CRC)、使用DCI中特定信息域的比特取值指示SL PRS资源、在DCI中引入SL PRS指示域、使用专用的DCI、或者多种方式相结合来指示SL PRS资源。终端也可以基于加扰CRC的RNTI、DCI中的特定信息域的比特取值、SL PRS指示域、专用的DCI、或者多种方式相结合来确定SL PRS资源。
本公开实施例提供的SL PRS资源的确定方法,网络设备可以通过DCI向终端指示分配的SL PRS资源,从而终端可以据此确定SL PRS资源的分配情况,进而完成直通链路定位。
在一些实施例中,第一DCI中包含第一信息域,第一信息域用于指示至少一次PSSCH传输所在的时隙中是否存在SL PRS资源。
具体地,第一信息域在此不做具体限定,其可以是DCI中某个或某些特定的信息域,网络设备可以通过第一信息域来指示至少一次PSSCH传输所在的时隙中是否存在SL PRS资源,从而终端可以通过第一信息域确定SL PRS资源的分配情况。
在一些实施例中,PSSCH传输的次数可以通过DCI中的时域资源分配域确定。
一次PSSCH传输所在的时隙中存在SL PRS资源,也可以理解为一次传输(直通链路传输)中包含了数据传输和SL PRS传输。一次PSSCH传输所 在的时隙中不存在SL PRS资源,也可以理解为一次传输(直通链路传输)中仅包含数据传输,不包含SL PRS传输。
在一些实施例中,假设PSSCH传输的次数为n,可以通过第一信息域中的n个比特分别指示每一次PSSCH传输所在的时隙中是否存在SL PRS资源。第一信息域中的比特数可以大于或等于n。
在一些实施例中,第一信息域包括配置索引域和/或HARQ进程号域。
在一些实施例中,配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
例如,配置索引域包含3个比特,每个比特分别对应最多3次传输中,每次传输是否包含SL PRS传输。传输的次数可以由DCI中的时域资源分配域确定。假设DCI中的时域资源分配域指示3次传输,且配置索引域指示“010”,表示第1次和第3次传输中仅包含数据传输,第2次传输中既包含数据传输也包含SL PRS传输;若DCI中的时域资源分配域指示2次传输,则可以是配置索引域中指定的2个比特生效,比如仅前2个比特生效,此时若配置索引域指示“101”,则表示第1次传输中既包含数据传输也包含SL PRS传输,第2次传输中仅包含数据传输。
在一些实施例中,HARQ进程号域中使用1个比特指示激活配置授权,并使用除该1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
例如,HARQ进程号域占用4个比特,可以使用其中第1个比特指示激活配置授权,后3个比特中的每个比特分别对应最多3次传输中,每次传输是否包含SL PRS,例如表2所示。
表2HARQ进程号域指示示例

需要说明的是,以上为举例,不排除使用其他比特取值来表示对应的传输。
在一些实施例中,第一DCI中的CRC可以经过直通链路无线网络临时标识(SL-RNTI)、直通链路配置调度无线网络临时标识(SL-CS-RNTI)或者用于直通链路定位的无线网络临时标识(SL-Pos-RNTI)加扰。其中,SL-Pos-RNTI可以是用于直通链路定位的任意RNTI,其具体名称和形式本公开并不限制。
在一些实施例中,第一信息域包括SL PRS指示域,第一DCI中的CRC经过SL-Pos-RNTI加扰。
例如,SL PRS指示域可以是新增的一个专用于指示SL PRS资源的信息域,该SL PRS指示域可以包含多个比特(比如3个比特),这多个比特用于指示至少一次传输中是否包含SL PRS传输。
网络设备可以使用SL-Pos-RNTI加扰第一DCI(包含SL PRS指示域)的CRC,从而终端可以基于该第一DCI中的SL PRS指示域确定SL PRS资源。
在一些实施例中,在第一DCI中的CRC经过SL-Pos-RNTI加扰的情况 下,第一DCI用于指示SL PRS资源。
例如,第一DCI可以是已有的DCI format 3_0,网络设备可以通过不同RNTI加扰DCI的CRC,用于不同的资源分配。比如CRC经过SL-Pos-RNTI加扰的DCI format 3_0仅用于指示SL PRS的资源分配,不用于指示数据传输的资源分配,即该DCI format 3_0中的时域资源分配域和频域资源分配域均指示的是SL PRS资源;CRC经过SL-RNTI或SL-CS-RNTI加扰的DCI format 3_0可用于指示数据传输的资源分配。
在一些实施例中,第一DCI与第三DCI相关联,第三DCI指示的PSSCH资源与第一DCI指示的SL PRS资源位于相同时隙。
例如,对于通过不同RNTI加扰DCI的CRC来指示不同的资源分配的情况,第一DCI仅指示SL PRS资源,第三DCI仅指示PSSCH资源,具有关联关系的第一DCI和第三DCI可以表示这两个DCI所指示的资源位于相同时隙。
在一些实施例中,第一DCI与第三DCI之间的关联关系可以是系统预定义的或者网络侧指示的。
在一些实施例中,第二DCI中包含资源池索引域和/或时间间隔域。
具体地,专用资源池中不包含PSSCH资源。这种情况下,网络设备可以采用新的DCI(第二DCI)进行SL PRS资源指示。终端可以根据该第二DCI确定专用资源池中的SL PRS资源。
该第二DCI中至少包含资源池索引域和/或时间间隔域。资源池索引域和时间间隔域的含义与DCI format 3_0类似,只是用于指示的资源不同。
在一些实施例中,第二DCI中还可以包含其他信息域,来指示更详细的SL PRS资源信息。例如,第二DCI中可以包含SL PRS资源所在时隙的指示,或者包含SL PRS资源在时隙内的符号位置,或者包含SL PRS资源索引,或者包含SL PRS资源的comb取值,等等。
在一些实施例中,第二DCI中资源池索引域的大小与第一DCI中资源池索引域的大小相同;和/或,第二DCI的长度与第一DCI的长度相同。其中,若第二DCI的长度与第一DCI的长度不同,则可以通过填充的方式将第二 DCI的长度填充至与第一DCI相同的长度。
在一些实施例中,第二DCI中的CRC可以经过用于直通链路定位专用资源池的无线网络临时标识(SL-Pos-DP-RNTI)加扰。其中,SL-Pos-DP-RNTI可以是用于直通链路定位且用于专用资源池中SL PRS资源指示的任意RNTI,其具体名称和形式本公开并不限制。终端接收到CRC经过SL-Pos-DP-RNTI加扰的DCI,便可以直接确定该DCI是指示专用资源池中的SL PRS资源。
本公开提出的用于共享资源池和/或用于专用资源池的DCI设计。通过引入新的RNTI、设置特殊比特取值、引入新的SL PRS指示域等方法,既保证了与现有终端的兼容,也实现了对于共享资源池可以同时指示SL通信与SL定位的资源分配;对于专用资源池可以进一步指示SL PRS资源的时域位置信息。其可以用于多种SL定位技术。
图2为本公开实施例提供的SL PRS资源的指示方法的流程示意图,该方法可应用于网络设备(例如:基站),如图2所示,该方法包括如下步骤:
步骤200、向终端发送下行控制信息DCI,DCI用于指示网络设备分配给终端的SL PRS资源。
在一些实施例中,DCI包括以下一种或多种:
第一DCI,第一DCI用于指示共享资源池中的SL PRS资源;
第二DCI,第二DCI用于指示专用资源池中的SL PRS资源。
在一些实施例中,第一DCI中包含第一信息域,第一信息域用于指示至少一次次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
在一些实施例中,配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,HARQ进程号域中使用1个比特指示激活配置授权,并使用除1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
在一些实施例中,第一信息域包括SL PRS指示域,第一DCI中的CRC经过SL-Pos-RNTI加扰。
在一些实施例中,在第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,第一DCI用于指示SL PRS资源。
在一些实施例中,第一DCI与第三DCI相关联,第三DCI指示的PSSCH资源与第一DCI指示的SL PRS资源位于相同时隙。
在一些实施例中,第一DCI与第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
在一些实施例中,第二DCI中包含资源池索引域和/或时间间隔域。
在一些实施例中,第二DCI中资源池索引域的大小与第一DCI中资源池索引域的大小相同;和/或,
第二DCI的长度与第一DCI的长度相同。
在一些实施例中,第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
本公开各实施例提供的方法是基于同一申请构思的,因此各方法的实施可以相互参见,重复之处不再赘述。
以下通过具体应用场景的示例对本公开各上述实施例提供的方法进行举例说明。
示例1:
对于共享资源池,使用DCI format 3_0既指示SL数据传输资源分配,也指示SL PRS资源分配。具体的,对于CRC经过SL-RNTI加扰的DCI format 3_0,使用DCI format 3_0中的配置索引域指示对应的传输中是否包含SL PRS资源。此配置索引域包含3比特,每个比特分别对应最多3次传输中,每次传输是否包含SL PRS。传输的次数由DCI中的时域资源分配域确定。例如,时域资源分配域指示3次传输,且配置索引域指示“010”,表示第1次和第 3次传输中仅包含数据传输(仅包含PSSCH资源),第2次传输中既包含数据传输也包含SL PRS传输;若资源分配域指示2次传输,则配置索引域中仅前2个比特生效,若此时配置索引域指示“101”,则表示第1次传输中既包含数据传输也包含SL PRS传输,第2次传输中仅包含数据传输。此方案中,要求CRC经过SL-RNTI加扰的DCI format 3_0中始终存在配置索引域。
对于CRC经过SL-CS-RNTI加扰的DCI format 3_0,使用DCI format 3_0中的HARQ进程号域指示对应的传输中是否包含SL PRS资源。此HARQ进程号域占用4比特,使用除“0000”和“1111”之外的取值来指示对应的传输中是否包含SL PRS资源(由于“0000”指示激活配置授权,“1111”指示去激活配置授权)。一种方式可以使用第1个比特为0表示激活配置授权,后3个比特中的每个比特分别对应最多3次传输中,每次传输是否包含SL PRS,如表2所示。
图3为本公开实施例提供的资源指示示例图,如图3所示,当终端接收到此DCI format 3_0后,根据DCI中的时域资源分配域和频域资源分配域,确定SL PSSCH资源所在时隙,并根据配置索引域的指示,确定相应时隙中是否存在SL PRS资源。进一步,终端通过SCI format 1-A向其他终端指示基站分配的PSCCH资源和SL PRS资源。
本示例中,使用现有DCI域中设置特殊值的方式指示SL PRS资源分配,既不增加终端的盲检次数,也不增加DCI的开销。
示例2:
引入新的RNTI,可以定义为SL-Pos-RNTI。对于共享资源池,若基站通过RRC配置了此SL-Pos-RNTI,则CRC经过此SL-Pos-RNTI加扰的DCI format 3_0中包含SL PRS指示域。此SL PRS指示域可以是在当前的DCI format 3_0中新增的一个域。SL PRS指示域包含3比特,每个比特分别对应最多3次传输中,每次传输是否包含SL PRS。传输的次数由DCI中的时域资源分配域确定。例如,时域资源分配域指示3次传输,且SL PRS指示域指示“010”,表示第1次和第3次传输中仅包含数据传输,第2次传输中既包含数据传输也包含SL PRS传输;若资源分配域指示2次传输,则SL PRS指示 域中仅前2个比特生效,若此时SL PRS指示域指示“101”,则表示第1次传输中既包含数据传输也包含SL PRS传输,第2次传输中仅包含数据传输。
当终端接收到此DCI format 3_0后,根据DCI中的时域资源分配域和频域资源分配域,确定SL PSSCH资源所在时隙,并根据的SL PRS指示域的指示,确定相应时隙中是否存在SL PRS资源。进一步,终端通过SCI format 1-A向其他终端指示基站分配的PSCCH资源和SL PRS资源。
若基站通过RRC配置了此SL-Pos-RNTI时,CRC经过SL-CS-RNTI加扰的DCI format 3_0中的此SL PRS指示域预留(即bit无效),此DCI与现有用途一样,用于SL配置授权的激活或释放。若基站通过RRC配置了此SL-Pos-RNTI时,CRC经过SL-RNTI加扰的DCI format 3_0中的此SL PRS指示域预留(即bit无效),此DCI与现有用途一样,用于SL通信的动态调度资源分配。
此示例中,CRC经过SL-Pos-RNTI加扰的DCI format 3_0同时用于指示SL通信的PSSCH的资源分配,也用于指示SL定位的SL PRS资源分配。
示例3:
引入新的RNTI,可以定义为SL-Pos-RNTI。对于共享资源池,采用CRC经过不同RNTI加扰的DCI format 3_0用于不同的资源分配。CRC经过此SL-Pos-RNTI加扰的DCI format 3_0用于指示SL PRS资源分配。在此条件下,表1中的时域资源分配和频域资源分配对应了SL PRS资源所在的时域和频域位置。当终端接收到此DCI format 3_0后,根据DCI中的时域资源分配域和频域资源分配域,确定SL PRS资源所在时隙。CRC经过SL-RNTI加扰的DCI format 3_0用于指示SL PSSCH资源分配。当终端接收到此DCI format 3_0后,根据DCI中的时域资源分配域和频域资源分配域,确定PSSCH资源所在的时隙。进一步,终端通过SCI format 1-A向其他终端指示基站分配的PSSCH资源和SL PRS资源。
可选的,系统预定义或指示这两个DCI(CRC经过SL-Pos-RNTI加扰的DCI format 3_0和CRC经过SL-RNTI加扰的DCI format 3_0)之间具有关联关系,用于保证终端确定此PSSCH资源和SL PRS资源位于相同时隙。
类似的,CRC经过SL-CS-RNTI加扰的DCI format 3_0用于指示SL PSSCH资源分配。终端接收到此DCI后,结合CRC经过SL-Pos-RNTI加扰的DCI format 3_0指示,确定SL PSSCH资源和SL PRS资源所在时隙。进一步,终端通过SCI format 1-A向其他终端指示基站分配的PSSCH资源和SL PRS资源。
示例4:
可以采用以上多个示例结合的方式进行资源分配的指示。例如将示例1与示例3结合,通过引入SL-Pos-RNTI对DCI进行加扰,并采用示例1中设置DCI域中的特殊取值的方式,实现SL PRS的资源分配。具体可参照上述各示例,此处不再赘述。
示例5:
专用资源池中不包含PSSCH资源。这种情况下,基站不需要指示PSSCH资源,仅需要指示SL PRS资源。此时,可以采用新的DCI进行SL PRS资源指示,假设定义为DCI format 3_2。此DCI中至少包含资源池索引域和时间间隔域。其中,资源池索引域的大小与DCI format 3_0中的相同,且此DCI的长度与DCI format 3_0相同。若不同,则通过填充的方式将此DCI的长度填充至DCI format 3_0的长度。此DCI还包含SL PRS资源所在时隙的指示,还可以包括SL PRS资源在时隙内的符号位置,或包括SL PRS资源索引,或包括SL PRS资源的comb取值。
当终端接收到CRC经过SL-RNTI加扰的DCI时,通过解析此DCI的资源池索引域,确定此DCI调度的资源池。若此索引指示为一个专用资源池,则终端确定此DCI为DCI format 3-2。终端进一步解析SL PRS资源所在的时隙,SL PRS资源在时隙内的符号位置,或SL PRS资源索引等信息。终端确定SL PRS资源后,通过SCI向其他终端指示基站分配的SL PRS资源。
示例6:
引入新的RNTI,可以定义为SL-Pos-DP-RNTI,用于专用资源池的DCI的加扰。当终端接收到CRC经过SL-Pos-DP-RNTI加扰的DCI后,终端确定此DCI用于专用资源池的SL PRS资源分配。此DCI中,可以包含资源池索 引域和时间间隔域。当仅配置了一个专用资源池时,资源池索引域为0bit。
此DCI中,资源池索引域的大小与DCI format 3_0中的相同,且此DCI的长度与DCI format 3_0相同。若不同,则通过填充的方式将此DCI的长度填充至DCI format 3_0的长度。此DCI还包含SL PRS资源所在时隙的指示,还可以包括SL PRS资源在时隙内的符号位置,或包括SL PRS资源索引,或包括SL PRS资源的comb取值。
当终端接收到CRC经过SL-Pos-DP-RNTI加扰的DCI时,终端确定此DCI用于专用资源池的SL PRS资源分配。终端进一步解析SL PRS资源所在的时隙,SL PRS资源在时隙内的符号位置,或SL PRS资源索引等信息。终端确定SL PRS资源后,通过SCI向其他终端指示基站分配的SL PRS资源。
本公开各实施例提供的方法和装置是基于同一申请构思的,由于方法和装置解决问题的原理相似,因此装置和方法的实施可以相互参见,重复之处不再赘述。
图4为本公开实施例提供的终端的结构示意图,如图4所示,该终端包括存储器420,收发机410和处理器400;其中,处理器400与存储器420也可以物理上分开布置。
存储器420,用于存储计算机程序;收发机410,用于在处理器400的控制下收发数据。
具体地,收发机410用于在处理器400的控制下接收和发送数据。
其中,在图4中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器400代表的一个或多个处理器和存储器420代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本公开不再对其进行进一步描述。总线接口提供接口。收发机410可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元,这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备,用户接口430还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器400负责管理总线架构和通常的处理,存储器420可以存储处理器400在执行操作时所使用的数据。
处理器400可以是中央处理器(Central Processing Unit,CPU)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD),处理器也可以采用多核架构。
处理器400通过调用存储器420存储的计算机程序,用于按照获得的可执行指令执行本公开实施例提供的任一方法,例如:接收网络设备发送的下行控制信息DCI;基于DCI确定网络设备分配给终端的SL PRS资源。
在一些实施例中,DCI包括以下一种或多种:
第一DCI,第一DCI用于指示共享资源池中的SL PRS资源;
第二DCI,第二DCI用于指示专用资源池中的SL PRS资源。
在一些实施例中,第一DCI中包含第一信息域,第一信息域用于指示至少一次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
在一些实施例中,配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,HARQ进程号域中使用1个比特指示激活配置授权,并使用除1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
在一些实施例中,第一信息域包括SL PRS指示域,第一DCI中的CRC经过SL-Pos-RNTI加扰。
在一些实施例中,在第一DCI中的CRC经过SL-Pos-RNTI加扰的情况 下,第一DCI用于指示SL PRS资源。
在一些实施例中,第一DCI与第三DCI相关联,第三DCI指示的PSSCH资源与第一DCI指示的SL PRS资源位于相同时隙。
在一些实施例中,第一DCI与第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
在一些实施例中,第二DCI中包含资源池索引域和/或时间间隔域。
在一些实施例中,第二DCI中资源池索引域的大小与第一DCI中资源池索引域的大小相同;和/或,
第二DCI的长度与第一DCI的长度相同。
在一些实施例中,第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
图5为本公开实施例提供的网络设备的结构示意图,如图5所示,该网络设备包括存储器520,收发机510和处理器500;其中,处理器500与存储器520也可以物理上分开布置。
存储器520,用于存储计算机程序;收发机510,用于在处理器500的控制下收发数据。
具体地,收发机510用于在处理器500的控制下接收和发送数据。
其中,在图5中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器500代表的一个或多个处理器和存储器520代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本公开不再对其进行进一步描述。总线接口提供接口。收发机510可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元,这些传输介质包括无线信道、有线信道、光缆等传输介质。
处理器500负责管理总线架构和通常的处理,存储器520可以存储处理器500在执行操作时所使用的数据。
处理器500可以是CPU、ASIC、FPGA或CPLD,处理器也可以采用多核架构。
处理器500通过调用存储器520存储的计算机程序,用于按照获得的可执行指令执行本公开实施例提供的任一方法,例如:向终端发送下行控制信息DCI,DCI用于指示网络设备分配给终端的SL PRS资源。
在一些实施例中,DCI包括以下一种或多种:
第一DCI,第一DCI用于指示共享资源池中的SL PRS资源;
第二DCI,第二DCI用于指示专用资源池中的SL PRS资源。
在一些实施例中,第一DCI中包含第一信息域,第一信息域用于指示至少一次次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
在一些实施例中,配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,HARQ进程号域中使用1个比特指示激活配置授权,并使用除1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
在一些实施例中,第一信息域包括SL PRS指示域,第一DCI中的CRC经过SL-Pos-RNTI加扰。
在一些实施例中,在第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,第一DCI用于指示SL PRS资源。
在一些实施例中,第一DCI与第三DCI相关联,第三DCI指示的PSSCH资源与第一DCI指示的SL PRS资源位于相同时隙。
在一些实施例中,第一DCI与第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
在一些实施例中,第二DCI中包含资源池索引域和/或时间间隔域。
在一些实施例中,第二DCI中资源池索引域的大小与第一DCI中资源池索引域的大小相同;和/或,
第二DCI的长度与第一DCI的长度相同。
在一些实施例中,第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
在此需要说明的是,本公开实施例提供的上述终端和网络设备,能够实现上述方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图6为本公开实施例提供的SL PRS资源的确定装置的结构示意图,如图6所示,该装置包括:
接收单元600,用于接收网络设备发送的下行控制信息DCI;
确定单元610,用于基于DCI确定网络设备分配给终端的SL PRS资源。
在一些实施例中,DCI包括以下一种或多种:
第一DCI,第一DCI用于指示共享资源池中的SL PRS资源;
第二DCI,第二DCI用于指示专用资源池中的SL PRS资源。
在一些实施例中,第一DCI中包含第一信息域,第一信息域用于指示至少一次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
在一些实施例中,配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,HARQ进程号域中使用1个比特指示激活配置授权,并使用除1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
在一些实施例中,第一信息域包括SL PRS指示域,第一DCI中的CRC经过SL-Pos-RNTI加扰。
在一些实施例中,在第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,第一DCI用于指示SL PRS资源。
在一些实施例中,第一DCI与第三DCI相关联,第三DCI指示的PSSCH资源与第一DCI指示的SL PRS资源位于相同时隙。
在一些实施例中,第一DCI与第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
在一些实施例中,第二DCI中包含资源池索引域和/或时间间隔域。
在一些实施例中,第二DCI中资源池索引域的大小与第一DCI中资源池索引域的大小相同;和/或,
第二DCI的长度与第一DCI的长度相同。
在一些实施例中,第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
图7为本公开实施例提供的SL PRS资源的指示装置的结构示意图,如图7所示,该装置包括:
发送单元700,用于向终端发送下行控制信息DCI,DCI用于指示网络设备分配给终端的SL PRS资源。
在一些实施例中,DCI包括以下一种或多种:
第一DCI,第一DCI用于指示共享资源池中的SL PRS资源;
第二DCI,第二DCI用于指示专用资源池中的SL PRS资源。
在一些实施例中,第一DCI中包含第一信息域,第一信息域用于指示至少一次次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
在一些实施例中,配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,HARQ进程号域中使用1个比特指示激活配置授权,并使用除1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
在一些实施例中,第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
在一些实施例中,第一信息域包括SL PRS指示域,第一DCI中的CRC经过SL-Pos-RNTI加扰。
在一些实施例中,在第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,第一DCI用于指示SL PRS资源。
在一些实施例中,第一DCI与第三DCI相关联,第三DCI指示的PSSCH资源与第一DCI指示的SL PRS资源位于相同时隙。
在一些实施例中,第一DCI与第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
在一些实施例中,第二DCI中包含资源池索引域和/或时间间隔域。
在一些实施例中,第二DCI中资源池索引域的大小与第一DCI中资源池索引域的大小相同;和/或,
第二DCI的长度与第一DCI的长度相同。
在一些实施例中,第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
需要说明的是,本公开实施例中对单元的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。另外,在本公开各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个处理器可读取存储介质中。基于这样的理解,本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的 全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在此需要说明的是,本公开实施例提供的上述装置,能够实现上述方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
另一方面,本公开实施例还提供一种非瞬时可读存储介质,所述非瞬时可读存储介质存储有计算机程序,所述计算机程序用于使处理器执行上述各实施例提供的方法。
在此需要说明的是,本公开实施例提供的非瞬时可读存储介质,能够实现上述方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
所述非瞬时可读存储介质可以是计算机能够存取的任何可用介质或数据存储设备,包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
本公开实施例提供的技术方案可以适用于多种系统,尤其是5G系统。例如适用的系统可以是全球移动通讯(global system of mobile communication,GSM)系统、码分多址(code division multiple access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)通用分组无线业务(general packet radio service,GPRS)系统、长期演进(long term evolution,LTE)系统、LTE频分双工(frequency division duplex,FDD)系统、LTE时分双工(time division duplex,TDD)系统、高级长期演进(long term evolution advanced,LTE-A)系统、通用移动系统(universal mobile telecommunication  system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)系统、5G新空口(New Radio,NR)系统等。这多种系统中均包括终端设备和网络设备。系统中还可以包括核心网部分,例如演进的分组系统(Evloved Packet System,EPS)、5G系统(5GS)等。
本公开实施例涉及的终端,可以是指向用户提供语音和/或数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中,终端的名称可能也不相同,例如在5G系统中,终端可以称为用户设备(User Equipment,UE)。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN)进行通信,无线终端设备可以是移动终端设备,如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol,SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device),本公开实施例中并不限定。
本公开实施例涉及的网络设备,可以是基站,该基站可以包括多个为终端提供服务的小区。根据具体应用场合不同,基站又可以称为接入点,或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备,或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet Protocol,IP)分组进行相互更换,作为无线终端设备与接入网的其余部分之间的路由器,其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如,本公开实施例涉及的网络设备可以是全球移动通信系统(Global System for Mobile communications,GSM)或 码分多址接入(Code Division Multiple Access,CDMA)中的网络设备(Base Transceiver Station,BTS),也可以是带宽码分多址接入(Wide-band Code Division Multiple Access,WCDMA)中的网络设备(NodeB),还可以是长期演进(long term evolution,LTE)系统中的演进型网络设备(evolutional Node B,eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB),也可以是家庭演进基站(Home evolved Node B,HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等,本公开实施例中并不限定。在一些网络结构中,网络设备可以包括集中单元(centralized unit,CU)节点和分布单元(distributed unit,DU)节点,集中单元和分布单元也可以地理上分开布置。
网络设备与终端之间可以各自使用一或多根天线进行多输入多输出(Multi Input Multi Output,MIMO)传输,MIMO传输可以是单用户MIMO(Single User MIMO,SU-MIMO)或多用户MIMO(Multiple User MIMO,MU-MIMO)。根据根天线组合的形态和数量,MIMO传输可以是2D-MIMO、3D-MIMO、FD-MIMO或massive-MIMO,也可以是分集传输或预编码传输或波束赋形传输等。
本领域内的技术人员应明白,本公开的实施例可提供为方法、系统、或计算机程序产品。因此,本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的 功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中,使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样,倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内,则本公开也意图包含这些改动和变型在内。

Claims (86)

  1. 一种直通链路定位参考信号SL PRS资源的确定方法,应用于终端,包括:
    接收网络设备发送的下行控制信息DCI;
    基于所述DCI确定所述网络设备分配给所述终端的SL PRS资源。
  2. 根据权利要求1所述的SL PRS资源的确定方法,其中,所述DCI包括以下一种或多种:
    第一DCI,所述第一DCI用于指示共享资源池中的SL PRS资源;
    第二DCI,所述第二DCI用于指示专用资源池中的SL PRS资源。
  3. 根据权利要求2所述的SL PRS资源的确定方法,其中,所述第一DCI中包含第一信息域,所述第一信息域用于指示至少一次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
  4. 根据权利要求3所述的SL PRS资源的确定方法,其中,所述第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
  5. 根据权利要求4所述的SL PRS资源的确定方法,其中,所述配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
  6. 根据权利要求4所述的SL PRS资源的确定方法,其中,所述HARQ进程号域中使用1个比特指示激活配置授权,并使用除所述1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
  7. 根据权利要求4至6任一项所述的SL PRS资源的确定方法,其中,所述第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
  8. 根据权利要求3所述的SL PRS资源的确定方法,其中,所述第一信息域包括SL PRS指示域,所述第一DCI中的CRC经过SL-Pos-RNTI加扰。
  9. 根据权利要求2所述的SL PRS资源的确定方法,其中,在所述第一 DCI中的CRC经过SL-Pos-RNTI加扰的情况下,所述第一DCI用于指示SL PRS资源。
  10. 根据权利要求9所述的SL PRS资源的确定方法,其中,所述第一DCI与第三DCI相关联,所述第三DCI指示的PSSCH资源与所述第一DCI指示的SL PRS资源位于相同时隙。
  11. 根据权利要求10所述的SL PRS资源的确定方法,其中,所述第一DCI与所述第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
  12. 根据权利要求2所述的SL PRS资源的确定方法,其中,所述第二DCI中包含资源池索引域和/或时间间隔域。
  13. 根据权利要求12所述的SL PRS资源的确定方法,其中,所述第二DCI中资源池索引域的大小与所述第一DCI中资源池索引域的大小相同;和/或,
    所述第二DCI的长度与所述第一DCI的长度相同。
  14. 根据权利要求12或13所述的SL PRS资源的确定方法,其中,所述第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
  15. 一种直通链路定位参考信号SL PRS资源的指示方法,应用于网络设备,包括:
    向终端发送下行控制信息DCI,所述DCI用于指示所述网络设备分配给所述终端的SL PRS资源。
  16. 根据权利要求15所述的SL PRS资源的指示方法,其中,所述DCI包括以下一种或多种:
    第一DCI,所述第一DCI用于指示共享资源池中的SL PRS资源;
    第二DCI,所述第二DCI用于指示专用资源池中的SL PRS资源。
  17. 根据权利要求16所述的SL PRS资源的指示方法,其中,所述第一DCI中包含第一信息域,所述第一信息域用于指示至少一次次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
  18. 根据权利要求17所述的SL PRS资源的指示方法,其中,所述第一 信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
  19. 根据权利要求18所述的SL PRS资源的指示方法,其中,所述配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
  20. 根据权利要求18所述的SL PRS资源的指示方法,其中,所述HARQ进程号域中使用1个比特指示激活配置授权,并使用除所述1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
  21. 根据权利要求18至20任一项所述的SL PRS资源的指示方法,其中,所述第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
  22. 根据权利要求17所述的SL PRS资源的指示方法,其中,所述第一信息域包括SL PRS指示域,所述第一DCI中的CRC经过SL-Pos-RNTI加扰。
  23. 根据权利要求16所述的SL PRS资源的指示方法,其中,在所述第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,所述第一DCI用于指示SL PRS资源。
  24. 根据权利要求23所述的SL PRS资源的指示方法,其中,所述第一DCI与第三DCI相关联,所述第三DCI指示的PSSCH资源与所述第一DCI指示的SL PRS资源位于相同时隙。
  25. 根据权利要求24所述的SL PRS资源的指示方法,其中,所述第一DCI与所述第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
  26. 根据权利要求16所述的SL PRS资源的指示方法,其中,所述第二DCI中包含资源池索引域和/或时间间隔域。
  27. 根据权利要求26所述的SL PRS资源的指示方法,其中,所述第二DCI中资源池索引域的大小与所述第一DCI中资源池索引域的大小相同;和/或,
    所述第二DCI的长度与所述第一DCI的长度相同。
  28. 根据权利要求26或27所述的SL PRS资源的指示方法,其中,所述第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
  29. 一种终端,包括存储器,收发机,处理器;
    存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
    接收网络设备发送的下行控制信息DCI;
    基于所述DCI确定所述网络设备分配给所述终端的直通链路定位参考信号SL PRS资源。
  30. 根据权利要求29所述的终端,其中,所述DCI包括以下一种或多种:
    第一DCI,所述第一DCI用于指示共享资源池中的SL PRS资源;
    第二DCI,所述第二DCI用于指示专用资源池中的SL PRS资源。
  31. 根据权利要求30所述的终端,其中,所述第一DCI中包含第一信息域,所述第一信息域用于指示至少一次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
  32. 根据权利要求31所述的终端,其中,所述第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
  33. 根据权利要求32所述的终端,其中,所述配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
  34. 根据权利要求32所述的终端,其中,所述HARQ进程号域中使用1个比特指示激活配置授权,并使用除所述1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
  35. 根据权利要求32至34任一项所述的终端,其中,所述第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
  36. 根据权利要求31所述的终端,其中,所述第一信息域包括SL PRS指示域,所述第一DCI中的CRC经过SL-Pos-RNTI加扰。
  37. 根据权利要求30所述的终端,其中,在所述第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,所述第一DCI用于指示SL PRS资源。
  38. 根据权利要求37所述的终端,其中,所述第一DCI与第三DCI相关联,所述第三DCI指示的PSSCH资源与所述第一DCI指示的SL PRS资源位于相同时隙。
  39. 根据权利要求38所述的终端,其中,所述第一DCI与所述第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
  40. 根据权利要求30所述的终端,其中,所述第二DCI中包含资源池索引域和/或时间间隔域。
  41. 根据权利要求40所述的终端,其中,所述第二DCI中资源池索引域的大小与所述第一DCI中资源池索引域的大小相同;和/或,
    所述第二DCI的长度与所述第一DCI的长度相同。
  42. 根据权利要求40或41所述的终端,其中,所述第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
  43. 一种网络设备,包括存储器,收发机,处理器;
    存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
    向终端发送下行控制信息DCI,所述DCI用于指示所述网络设备分配给所述终端的直通链路定位参考信号SL PRS资源。
  44. 根据权利要求43所述的网络设备,其中,所述DCI包括以下一种或多种:
    第一DCI,所述第一DCI用于指示共享资源池中的SL PRS资源;
    第二DCI,所述第二DCI用于指示专用资源池中的SL PRS资源。
  45. 根据权利要求44所述的网络设备,其中,所述第一DCI中包含第一信息域,所述第一信息域用于指示至少一次次物理直通链路共享信道PSSCH 传输所在的时隙中是否存在SL PRS资源。
  46. 根据权利要求45所述的网络设备,其中,所述第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
  47. 根据权利要求46所述的网络设备,其中,所述配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
  48. 根据权利要求46所述的网络设备,其中,所述HARQ进程号域中使用1个比特指示激活配置授权,并使用除所述1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
  49. 根据权利要求46至48任一项所述的网络设备,其中,所述第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
  50. 根据权利要求45所述的网络设备,其中,所述第一信息域包括SL PRS指示域,所述第一DCI中的CRC经过SL-Pos-RNTI加扰。
  51. 根据权利要求44所述的网络设备,其中,在所述第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,所述第一DCI用于指示SL PRS资源。
  52. 根据权利要求51所述的网络设备,其中,所述第一DCI与第三DCI相关联,所述第三DCI指示的PSSCH资源与所述第一DCI指示的SL PRS资源位于相同时隙。
  53. 根据权利要求52所述的网络设备,其中,所述第一DCI与所述第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
  54. 根据权利要求44所述的网络设备,其中,所述第二DCI中包含资源池索引域和/或时间间隔域。
  55. 根据权利要求54所述的网络设备,其中,所述第二DCI中资源池索引域的大小与所述第一DCI中资源池索引域的大小相同;和/或,
    所述第二DCI的长度与所述第一DCI的长度相同。
  56. 根据权利要求54或55所述的网络设备,其中,所述第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP- RNTI加扰。
  57. 一种直通链路定位参考信号SL PRS资源的确定装置,包括:
    接收单元,用于接收网络设备发送的下行控制信息DCI;
    确定单元,用于基于所述DCI确定所述网络设备分配给终端的SL PRS资源。
  58. 根据权利要求57所述的SL PRS资源的确定装置,其中,所述DCI包括以下一种或多种:
    第一DCI,所述第一DCI用于指示共享资源池中的SL PRS资源;
    第二DCI,所述第二DCI用于指示专用资源池中的SL PRS资源。
  59. 根据权利要求58所述的SL PRS资源的确定装置,其中,所述第一DCI中包含第一信息域,所述第一信息域用于指示至少一次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
  60. 根据权利要求59所述的SL PRS资源的确定装置,其中,所述第一信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
  61. 根据权利要求60所述的SL PRS资源的确定装置,其中,所述配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
  62. 根据权利要求60所述的SL PRS资源的确定装置,其中,所述HARQ进程号域中使用1个比特指示激活配置授权,并使用除所述1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
  63. 根据权利要求60至62任一项所述的SL PRS资源的确定装置,其中,所述第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
  64. 根据权利要求59所述的SL PRS资源的确定装置,其中,所述第一信息域包括SL PRS指示域,所述第一DCI中的CRC经过SL-Pos-RNTI加扰。
  65. 根据权利要求58所述的SL PRS资源的确定装置,其中,在所述第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,所述第一DCI用于指示SL PRS资源。
  66. 根据权利要求65所述的SL PRS资源的确定装置,其中,所述第一DCI与第三DCI相关联,所述第三DCI指示的PSSCH资源与所述第一DCI指示的SL PRS资源位于相同时隙。
  67. 根据权利要求66所述的SL PRS资源的确定装置,其中,所述第一DCI与所述第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
  68. 根据权利要求58所述的SL PRS资源的确定装置,其中,所述第二DCI中包含资源池索引域和/或时间间隔域。
  69. 根据权利要求68所述的SL PRS资源的确定装置,其中,所述第二DCI中资源池索引域的大小与所述第一DCI中资源池索引域的大小相同;和/或,
    所述第二DCI的长度与所述第一DCI的长度相同。
  70. 根据权利要求68或69所述的SL PRS资源的确定装置,其中,所述第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
  71. 一种直通链路定位参考信号SL PRS资源的指示装置,包括:
    发送单元,用于向终端发送下行控制信息DCI,所述DCI用于指示网络设备分配给所述终端的SL PRS资源。
  72. 根据权利要求71所述的SL PRS资源的指示装置,其中,所述DCI包括以下一种或多种:
    第一DCI,所述第一DCI用于指示共享资源池中的SL PRS资源;
    第二DCI,所述第二DCI用于指示专用资源池中的SL PRS资源。
  73. 根据权利要求72所述的SL PRS资源的指示装置,其中,所述第一DCI中包含第一信息域,所述第一信息域用于指示至少一次次物理直通链路共享信道PSSCH传输所在的时隙中是否存在SL PRS资源。
  74. 根据权利要求73所述的SL PRS资源的指示装置,其中,所述第一 信息域包括配置索引域和/或混合自动重传请求HARQ进程号域。
  75. 根据权利要求74所述的SL PRS资源的指示装置,其中,所述配置索引域中使用3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
  76. 根据权利要求74所述的SL PRS资源的指示装置,其中,所述HARQ进程号域中使用1个比特指示激活配置授权,并使用除所述1个比特以外的其他3个比特分别指示至多3次PSSCH传输所在的时隙中是否存在SL PRS资源。
  77. 根据权利要求74至76任一项所述的SL PRS资源的指示装置,其中,所述第一DCI中的循环冗余校验码CRC经过直通链路无线网络临时标识SL-RNTI、直通链路配置调度无线网络临时标识SL-CS-RNTI或者用于直通链路定位的无线网络临时标识SL-Pos-RNTI加扰。
  78. 根据权利要求73所述的SL PRS资源的指示装置,其中,所述第一信息域包括SL PRS指示域,所述第一DCI中的CRC经过SL-Pos-RNTI加扰。
  79. 根据权利要求72所述的SL PRS资源的指示装置,其中,在所述第一DCI中的CRC经过SL-Pos-RNTI加扰的情况下,所述第一DCI用于指示SL PRS资源。
  80. 根据权利要求79所述的SL PRS资源的指示装置,其中,所述第一DCI与第三DCI相关联,所述第三DCI指示的PSSCH资源与所述第一DCI指示的SL PRS资源位于相同时隙。
  81. 根据权利要求80所述的SL PRS资源的指示装置,其中,所述第一DCI与所述第三DCI之间的关联关系是系统预定义的或者网络侧指示的。
  82. 根据权利要求72所述的SL PRS资源的指示装置,其中,所述第二DCI中包含资源池索引域和/或时间间隔域。
  83. 根据权利要求82所述的SL PRS资源的指示装置,其中,所述第二DCI中资源池索引域的大小与所述第一DCI中资源池索引域的大小相同;和/或,
    所述第二DCI的长度与所述第一DCI的长度相同。
  84. 根据权利要求82或83所述的SL PRS资源的指示装置,其中,所述第二DCI中的CRC经过用于直通链路定位专用资源池的无线网络临时标识SL-Pos-DP-RNTI加扰。
  85. 一种非瞬时可读存储介质,所述非瞬时可读存储介质存储有计算机程序,所述计算机程序用于使处理器执行权利要求1至14任一项所述的方法。
  86. 一种非瞬时可读存储介质,所述非瞬时可读存储介质存储有计算机程序,所述计算机程序用于使处理器执行权利要求15至28任一项所述的方法。
PCT/CN2024/111003 2023-08-11 2024-08-09 Sl prs资源的确定方法、指示方法、装置及存储介质 Pending WO2025036282A1 (zh)

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