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WO2025065430A1 - Procédé et appareil d'attribution de ressources, dispositif et support de stockage - Google Patents

Procédé et appareil d'attribution de ressources, dispositif et support de stockage Download PDF

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Publication number
WO2025065430A1
WO2025065430A1 PCT/CN2023/122336 CN2023122336W WO2025065430A1 WO 2025065430 A1 WO2025065430 A1 WO 2025065430A1 CN 2023122336 W CN2023122336 W CN 2023122336W WO 2025065430 A1 WO2025065430 A1 WO 2025065430A1
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WO
WIPO (PCT)
Prior art keywords
prs
resources
terminal device
target
sidelink
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/122336
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English (en)
Chinese (zh)
Inventor
江小威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN202380011275.2A priority Critical patent/CN117546584A/zh
Priority to PCT/CN2023/122336 priority patent/WO2025065430A1/fr
Publication of WO2025065430A1 publication Critical patent/WO2025065430A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient

Definitions

  • the present disclosure relates to the field of communication technology, and in particular, to a resource allocation method, apparatus, device and storage medium.
  • a sidelink communication method is introduced.
  • the link between terminal devices is called a sidelink (SL).
  • the terminal device can obtain a sidelink grant resource (SL grant) through the scheduling of the network device, or select a sidelink grant resource from the configured SL resource pool; and then transmit a sidelink positioning reference signal (SL-PRS) based on the above sidelink grant resource to achieve the positioning of the sidelink SL.
  • SL grant sidelink grant resource
  • S-PRS sidelink positioning reference signal
  • the terminal devices involved in the sidelink SL positioning and the network devices responsible for resource allocation in the sidelink positioning cannot effectively determine the sidelink authorized resources for transmitting the sidelink positioning reference signal SL-PRS, which will affect the sidelink positioning effect.
  • LMF location management functions
  • Embodiments of the present disclosure provide a resource allocation method, device, apparatus, system and storage medium.
  • a resource allocation method comprising:
  • the sidelink granted resources acquired by the terminal device are allocated to the target SL-PRS of the target destination.
  • a resource allocation device including:
  • the processing module is configured to allocate the sidelink authorization resources acquired by the terminal device to the target SL-PRS of the target destination based on the priority of the sidelink positioning reference signal SL-PRS.
  • a terminal device including:
  • a memory for storing processor-executable instructions
  • the processor is configured to execute the steps of the resource allocation method provided in the first aspect of the present disclosure.
  • a computer-readable storage medium on which computer program instructions are stored.
  • the steps of the resource allocation method provided in the first aspect of the present disclosure are implemented.
  • the technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: the terminal device allocates the sidelink authorization resources obtained by the terminal device to the target SL-PRS of the target destination based on the priority of the sidelink positioning reference signal SL-PRS. It can be seen that the terminal device can allocate resources for the target SL-PRS of the target destination based on the priority of the SL-PRS, so that the subsequent terminal device can use the allocated sidelink authorization resources to send the target SL-PRS to the target destination, thereby realizing the sidelink SL positioning between the terminal device and the target destination (or the device corresponding to the target destination). In this way, the resource allocation of the sidelink authorization resources to the SL-PRS is realized, which is beneficial to improving the rationality and reliability of resource allocation, and does not affect Affects the positioning effect of the side link SL.
  • Fig. 1 is a schematic diagram showing a positioning scenario according to an exemplary embodiment.
  • Fig. 2 is a schematic structural diagram of a communication system according to an exemplary embodiment.
  • Fig. 3 is a schematic diagram showing the structure of a terminal device according to an exemplary embodiment.
  • Fig. 4 is a schematic flow chart showing a resource allocation method according to an exemplary embodiment.
  • Fig. 5 is a schematic flow chart of another resource allocation method according to an exemplary embodiment.
  • Fig. 6 is a schematic diagram showing the structure of a resource allocation device according to an exemplary embodiment.
  • Fig. 7 is a schematic diagram showing the structure of another resource allocation device according to an exemplary embodiment.
  • Fig. 8 is a schematic diagram showing the structure of a terminal device according to an exemplary embodiment.
  • Fig. 9 is a schematic structural diagram of a chip according to an exemplary embodiment.
  • the embodiments of the present disclosure provide a resource allocation method, apparatus, device and storage medium.
  • a resource allocation method comprising: allocating a sidelink authorization resource acquired by a terminal device to a target SL-PRS of a target destination based on the priority of a sidelink positioning reference signal SL-PRS.
  • the terminal device can allocate resources for the target SL-PRS of the target destination based on the priority of the SL-PRS, so that the subsequent terminal device can use the allocated side link authorization resources to send the target SL-PRS to the target destination, thereby realizing the side link SL positioning between the terminal device and the target destination (or the device corresponding to the target destination); in this way, the resource allocation of the side link authorization resources to the SL-PRS is realized, which is beneficial to improving the rationality and reliability of resource allocation, and does not affect the positioning effect of the side link SL.
  • the allocation of the sidelink authorization resources obtained by the terminal device to the target SL-PRS of the target destination based on the priority of the sidelink positioning reference signal SL-PRS includes: obtaining the priority of the transmission object to be sent to m destinations, the transmission object including the sidelink media access control element SL MAC CE, data in the SL logical channel and the SL-PRS, where m is a positive integer; determining the target destination based on the priority of the transmission object to be sent to the m destinations, the target destination being one of the m destinations; and allocating the sidelink authorization resources obtained by the terminal device to the target SL-PRS of the target destination.
  • the terminal device needs to first select a target destination from the m destinations based on the respective priorities of the SL MAC CE, the data in the SL logical channel and the SL-PRS in the m destinations, and then allocate resources for the target SL-PRS in the target destination.
  • resource allocation can be performed by comprehensively considering the priorities of all transmission objects, which further advantageously ensures the rationality and reliability of resource allocation.
  • the priorities of the transmission objects to be sent to the m destinations are based on the priorities of the transmission objects to be sent to the m destinations. Determining the target destination includes:
  • a destination corresponding to the transmission object with the highest priority is selected from the m destinations as the target destination.
  • the terminal device can select the destination corresponding to the transmission object with the highest priority from the m destinations as the final target destination. Accordingly, in the subsequent resource allocation, resources are allocated to the target destination with the highest priority, which can not only ensure the service transmission demand, but also ensure the rationality and reliability of resource allocation.
  • the SL-PRS in the transmission objects of the m destinations needs to meet a preset first condition, and the preset first condition includes that the sidelink authorized resources meet the transmission requirements of the SL-PRS.
  • the SL-PRS in the transmission objects of the m destinations must meet the preset first condition before they can be considered for selecting the target destination.
  • the preset first condition indicates that the above sidelink granted resources can be used to transmit the SL-PRS. This can save the resource cost and time cost required for selecting the target destination, and improve the efficiency of subsequent resource allocation.
  • allocating the sidelink granted resource acquired by the terminal device to the target SL-PRS of the target destination includes:
  • Resource allocation is performed based on the side link authorized resources obtained by the terminal device and the target SL-PRS to obtain the SL-PRS resources occupied by the target SL-PRS, and the side link authorized resources include the SL-PRS resources.
  • the terminal device determines the target SL-PRS to be allocated resources from at least one SL-PRS included in the target destination, and then allocates resources to the target SL-PRS based on the sidelink authorized resources to obtain the SL-PRS resources occupied by the target SL-PRS. In this way, the allocation of the sidelink authorized resources in the shared resource pool can be accurately and efficiently realized, which is conducive to improving the rationality and reliability of resource allocation.
  • the target SL-PRS is a SL-PRS among the at least one SL-PRS that satisfies a preset second condition
  • the preset second condition includes: the side link authorization resources meet the transmission requirements of the SL-PRS, and/or the priority of the SL-PRS is greater than or equal to a preset priority.
  • the terminal device can select/determine the above target SL-PRS from at least one SL-PRS included in the target destination based on the preset second condition, thereby further ensuring the rationality and reliability of resource allocation.
  • performing resource allocation based on the sidelink granted resources acquired by the terminal device and the target SL-PRS to obtain the SL-PRS resources occupied by the target SL-PRS includes:
  • the determination that the target SL-PRS needs to be transmitted includes at least one of the following: the sidelink authorized resource meets the transmission requirements of the target SL-PRS; the sidelink authorized resource is determined to support the transmission of the target SL-PRS based on the priority and size of the transmission object of the target destination; when the sidelink authorized resource is an authorized resource allocated by the network device, the sidelink authorized resource indicates support for the transmission of the SL-PRS; when the sidelink authorized resource is an authorized resource selected by the terminal device, the sidelink authorized resource indicates support for the transmission of the SL-PRS; When the sidelink is a source, the sidelink granted resources support the transmission of the target SL-PRS.
  • the terminal device allocates corresponding SL-PRS resources to the target SL-PRS only when it determines that the target SL-PRS needs to be transmitted, thereby avoiding unnecessary and wasteful resource allocation when the target SL-PRS does not need to be transmitted. This is conducive to improving the rationality and reliability of resource allocation.
  • the method further comprises:
  • the remaining transmission resources are determined, where the remaining transmission resources are the remaining resources in the sidelink granted resources excluding the SL-PRS resources, and the remaining transmission resources are used to transmit data in the SL MAC CE and/or SL logical channel.
  • the terminal device can determine the remaining transmission resources based on the side link authorization resources and the allocated SL-PRS resources, so as to facilitate the use of the remaining transmission resources for the transmission of data such as the data in the SL MAC CE and/or SL logical channel, which is further beneficial to improve the rationality of resource allocation and utilization.
  • the remaining transmission resources are determined by the MAC layer or PHY layer of the terminal device; wherein, when the remaining transmission resources are determined by the PHY layer of the terminal device, the MAC layer of the terminal device indicates the SL-PRS resources to the PHY layer of the terminal device, and the PHY layer of the terminal device indicates the remaining transmission resources to the MAC layer of the terminal device.
  • the above remaining transmission resources may be determined by the MAC layer or the physical PHY layer of the terminal device, so that the diversity and flexibility of determining the remaining transmission resources can be achieved.
  • the method further comprises:
  • the MAC layer of the terminal device instructs the PHY layer of the terminal device to use the SL-PRS resources to send the target SL-PRS to the target destination.
  • the MAC layer of the terminal device can send indication information to the PHY layer to instruct the PHY layer to use the above SL-PRS resources to send the target SL-PRS to the target destination, thereby realizing side link SL positioning between the terminal device and the target destination.
  • the method further comprises:
  • the objects to be transmitted between the terminal device and the target destination are maximized, and the objects to be transmitted include data in the SL-PRS and/or SL logical channels.
  • the terminal device can maximize the objects to be transmitted when allocating resources, which is helpful to improve the utilization rate of resource allocation.
  • the SL-PRS and data in a through link service channel STCH have the same priority, and the through link service channel is a channel in the SL logical channel.
  • the terminal device needs to ensure that the data in the SL-PRS and the direct link service channel STCH have the same priority when allocating resources, which is conducive to enhancing the rationality and reliability of resource allocation.
  • the method further comprises:
  • MAC protocol data unit MAC PDU When there is no data to be transmitted in the terminal device, it is prohibited to generate a MAC protocol data unit MAC PDU, wherein the data to be transmitted includes a MAC CE, a MAC service data unit MAC SDU and a SL-PRS; or,
  • a MAC PDU is generated, and the SL-PRS that needs to be transmitted and the MAC PDU are multiplexed and transmitted in the same time slot.
  • the terminal device when there is no data waiting to be transmitted such as MAC CE, MAC service data unit MAC SDU and SL-PRS, the terminal device does not need to generate MAC PDU for data transmission.
  • MAC PDU can be generated, and the MAC PDU and the SL-PRS to be transmitted are multiplexed in the same time slot using TMD mode, thereby saving the overhead of transmission resources and ensuring the reliability of data transmission.
  • the sidelink granted resource is a resource in a shared resource pool.
  • the sidelink granted resources satisfying the transmission requirements of the SL-PRS include at least one of the following:
  • the channel bandwidth of the sidelink granted resource meets the bandwidth transmission requirement of the SL-PRS
  • the sidelink granted resources meet the remaining delay budget requirement of the SL-PRS;
  • the sidelink granted resources meet the transmission duration requirement of the SL-PRS;
  • the sidelink granted resources meet the comb structure size requirement of the SL-PRS;
  • the sidelink granted resources have at least one set of resource parameters located in the resource parameter requirement set of the SL-PRS, and the resource parameters include the number of symbols and the size of the comb structure.
  • allocating the SL-PRS resource occupied by the target SL-PRS to the target SL-PRS includes:
  • the SL-PRS transmission parameter is determined based on at least one of the following:
  • the terminal device can determine the SL-PRS transmission parameters according to at least one of the above three implementation modes, and then determine the SL-PRS resources corresponding to the target SL-PRS, thereby ensuring the reliability and practicality of resource allocation.
  • a resource allocation device including:
  • the processing module is configured to allocate the sidelink authorization resources acquired by the terminal device to the target SL-PRS of the target destination based on the priority of the sidelink positioning reference signal SL-PRS.
  • a terminal device including:
  • a memory for storing processor-executable instructions
  • the processor is configured to execute the steps of the resource allocation method provided in the first aspect of the present disclosure.
  • a computer-readable storage medium on which is stored Computer program instructions, when executed by a processor, implement the steps of the resource allocation method provided in the first aspect of the present disclosure.
  • a chip or a chip system which includes a processing circuit configured to execute part or all of the content of the method described in the first aspect.
  • the embodiments of the present disclosure propose a resource allocation method, apparatus, device and storage medium.
  • the terms such as resource allocation method, information processing method, communication method, etc. can be replaced with each other, the terms such as resource allocation apparatus, information processing apparatus, communication apparatus, etc. can be replaced with each other, and the terms such as information processing system, communication system, etc. can be replaced with each other.
  • the present disclosure will describe the exemplary embodiments in detail below, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
  • the embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.
  • each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
  • a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged.
  • the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
  • elements expressed in the singular form such as “a”, “an”, “the”, “above”, “said”, “aforementioned”, “this”, etc., may mean “one and only one", or “one or more”, “at least one”, etc.
  • the noun after the article may be understood as a singular expression or a plural expression.
  • plurality refers to two or more.
  • the terms "at least one of”, “one or more”, “a plurality of”, “multiple”, etc. can be used interchangeably.
  • the description methods such as “at least one of A and B", “A and/or B”, “A in one case, B in another case”, “in response to one case A, in response to another case B”, etc. may include the following technical solutions according to the situation: in some embodiments, A (execute A independently of B); in some embodiments, B is executed independently of A; in some embodiments, A and B are selected for execution (A and B are selectively executed); in some embodiments, A and B are executed (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.
  • the recording method of "A or B” may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed).
  • A A is executed independently of B
  • B B is executed independently of A
  • execution is selected from A and B (A and B are selectively executed).
  • prefixes such as “first” and “second” in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute restrictions on the position, order, priority, quantity or content of the description objects.
  • the statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions due to the use of prefixes.
  • the description object is a "field”
  • the ordinal number before the "field” in the "first field” and the "second field” does not limit the position or order between the "fields”
  • the "first” and “second” do not limit whether the "fields” they modify are in the same message, nor do they limit the order of the "first field” and the "second field”.
  • the description object is a "level”
  • the ordinal number before the "level” in the “first level” and the “second level” does not limit the priority between the "levels”.
  • the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device” as an example, the number of "devices” can be one or more.
  • the objects modified by different prefixes may be the same or different. For example, if the description object is "device”, then the “first device” and the “second device” may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information”, then the "first information” and the “second information” may be the same information or different information, and their contents may be the same or different.
  • “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
  • terms such as “greater than”, “greater than or equal to”, “not less than”, “more than”, “more than or equal to”, “not less than”, “higher than”, “higher than or equal to”, “not lower than”, and “above” can be replaced with each other, and terms such as “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or equal to”, “no more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments.
  • Terms such as “device”, “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.
  • network may be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).
  • the terms “macro cell”, “small cell”, “femto cell”, “pico cell”, “sector”, “cell group”, “serving cell”, “carrier”, “component carrier”, and “bandwidth part (BWP)” may be used interchangeably.
  • terminal terminal
  • the access network device, the core network device, or the network device can be replaced by a terminal.
  • the various embodiments of the present disclosure can also be applied to a structure in which the access network device, the core network device, or the network device and the communication between the terminals is replaced by the communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.).
  • D2D device-to-device
  • V2X vehicle-to-everything
  • it can also be set as a structure in which the terminal has all or part of the functions of the access network device.
  • terms such as "uplink” and "downlink” can also be replaced by terms corresponding to communication between terminals (for example, "side”).
  • uplink channels, downlink channels, etc. can be replaced by side channels
  • uplinks, downlinks, etc. can be replaced by side links.
  • Sidelink SL positioning generally includes: sidelink SL absolute positioning, sidelink SL relative positioning and ranging.
  • sidelink SL absolute positioning refers to determining the absolute coordinates of the terminal device
  • sidelink SL relative positioning refers to determining the coordinates of the terminal device relative to a reference point
  • ranging refers to determining the distance and/or angle of the terminal device relative to a reference point.
  • ranging generally involves ranging between two terminal devices, and sidelink SL absolute positioning and sidelink SL relative positioning may involve multiple terminal devices for reference positioning.
  • the sidelink SL positioning method may include, but is not limited to, for example, the downlink time difference of arrival (DL-TDOA), uplink time difference of arrival (UL-TDOA), round trip time (RTT), angle of arrival (AOA), SL carrier phase, etc. of the sidelink.
  • DL-TDOA downlink time difference of arrival
  • UL-TDOA uplink time difference of arrival
  • RTT round trip time
  • AOA angle of arrival
  • SL carrier phase etc. of the sidelink.
  • FIG. 1 is a schematic diagram of a positioning scenario based on DL-TDOA according to an exemplary embodiment.
  • the terminal device can measure the positioning reference signals sent by multiple road side units (RSU) through the side link to determine the position of the terminal device relative to the RSU.
  • RSU road side units
  • the located terminal device can be referred to as the target device.
  • a target UE, a terminal device that locates the target UE, may be referred to as an anchor UE, or may be referred to as a destination. If positioning involves two terminal devices, they may be each other's anchor terminals.
  • the present disclosure does not limit the type of the above-mentioned anchor terminal.
  • it can be an infrastructure device, such as a roadside unit RSU, which can cooperate with other RSUs to provide positioning services, etc.; or it can be an ordinary terminal device, such as a user equipment (UE), which is difficult to cooperate with other UEs to provide positioning services; or it can be other devices with positioning functions such as the Global Positioning System (GPS), which can assist the terminal device in absolute positioning; or it can be a device without positioning functions such as GPS, etc.
  • GPS Global Positioning System
  • the present disclosure does not make too many restrictions and details on this.
  • the Sidelink Positioning Protocol can be used between terminal devices to transmit sidelink positioning information (such as SL-PRS, etc.).
  • sidelink positioning the positioning information exchanged between the terminal device and the network device (such as a base station or a location management function (LMF)) can also be called SLPP information.
  • LMF location management function
  • LPP information the positioning information exchanged between the terminal device and the network device.
  • SL-PRS can be sent on a dedicated resource pool (dedicated resource pool) or on a shared resource pool (shared resource pool).
  • the above-mentioned dedicated resource pool and shared resource pool are both pre-configured SL resource pools.
  • the shared resource pool is a resource pool shared by the transmission of SL-PRS and sidelink data (SL data).
  • the resource allocation of SL-PRS i.e., the allocation of the above-mentioned sidelink authorized resources
  • the terminal equipment can use time division multiplexing (Time Division Multiplex, TDM) in a time slot (slot) to send the above-mentioned SL-PRS and sidelink data (SL data).
  • TDM Time Division Multiplex
  • SL data can be carried in the physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH) for transmission.
  • PSSCH Physical Sidelink Shared Channel
  • the terminal device can use the logical channel prioritization (LCP) mechanism to allocate the side link grant resource (SL grant) to the SL data in each logical channel and the media access control element (MAC CE) for multiplexing and assembly to generate the corresponding MAC protocol data unit (PDU).
  • LCP logical channel prioritization
  • MAC CE media access control element
  • MAC CE is important control information, which may include but is not limited to, for example, buffer status report (Buffer Status Report, BSR), power headroom report (Power Headroom Report, PHR) and other information with high real-time reliability requirements, etc., and the present disclosure does not make too many restrictions and details on this.
  • the terminal device can determine the priority order of MAC CE and SL data in the logical channel based on the existing rules.
  • the above existing rules are shown in Table 1 below:
  • the terminal device will first determine a destination device (destination UE) with the highest priority to send data based on the priority order in the above rules, which can also be called the destination address; and then further select a logical channel from the destination address.
  • the terminal device allocates resources based on the logical channel in the selected destination address, the size of the SL data to be transmitted in the logical channel, the priority of the logical channel, the size and priority of the MAC CE, and other information.
  • FIG 2 is a structural diagram of a communication system shown according to an exemplary embodiment.
  • the communication system shown in Figure 2 includes: a network device 100 and a terminal device 200.
  • the present disclosure does not limit the number of networks 100 and terminal devices 200 respectively.
  • the figure shows one network device 100 and two terminal devices 200 as an example, but it does not constitute a limitation. Any two terminal devices 200 of the present disclosure can communicate with each other through the network, and the network device 100 and the terminal device 200 can also communicate with each other through the network, which is not limited by the present disclosure.
  • the communication link from the network device 100 to the terminal device 200 can be called a downlink
  • the communication link from the terminal device 200 to the network device 100 can be called an uplink
  • the communication link between the terminal devices 200 can be called a side link SL.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • SUPER 3G IMT-Advanced
  • 4th generation mobile communication system 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • 5G new radio NR
  • future radio access FX
  • new radio access technology RAT
  • new radio NR
  • new radio access NX
  • future generation radio access FX
  • GSM Global System for Mobile communications
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.20 Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) Networks, device-to-device (D2D) systems, machine-to-machine (M2M) systems, Internet of Things (IoT) systems, vehicle-to-everything
  • IoT Internet of Things
  • the network device 100 disclosed in the present invention may be: a base station, an evolved node B (eNB), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc.; it may also be a gNB in an NR system; or, it may also be a component or a part of a device constituting a base station, such as a central unit (CU), a distributed unit (DU) or a baseband unit (BBU), etc.
  • a base station such as a central unit (CU), a distributed unit (DU) or a baseband unit (BBU), etc.
  • CU central unit
  • DU distributed unit
  • BBU baseband unit
  • the terminal device 200 of the present disclosure may be fixed or mobile.
  • FIG2 is only a schematic diagram, and the system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG2.
  • the embodiments of the present disclosure do not limit the types and quantities of network devices and terminal devices included in the system.
  • the terminal device 200 may also be referred to as a terminal, user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • the terminal device 200 in the embodiment of the present disclosure may include, but is not limited to, for example, a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a PDA, a laptop computer, a mobile Internet device (Mobile Internet Devices, MID), a wearable device (such as a smart watch, a smart bracelet, etc.), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), and at least one of a wireless terminal device in a smart home (smart home), but is not limited thereto.
  • a smart phone such as an Android phone, an iOS phone
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure.
  • a person of ordinary skill in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.
  • the following embodiments of the present disclosure may be applied to the communication system shown in FIG2 or part of the subject, but are not limited thereto.
  • the subjects shown in FIG2 are examples, and the communication system may include all or part of the subjects in FIG2, or may include other subjects other than FIG2, and the number and form of the subjects are arbitrary, and the subjects may be physical or virtual, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, and may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.
  • FIG. 3 is a schematic diagram of a terminal device according to an exemplary embodiment.
  • the terminal device 200 shown in FIG. 3 may include: a radio frequency (RF) circuit 210, Components include a memory 220, an input unit 230, a display unit 240, a sensor 250, an audio circuit 260, a wireless fidelity (WiFi) module 270, a processor 280, and a power supply 290.
  • RF radio frequency
  • Components include a memory 220, an input unit 230, a display unit 240, a sensor 250, an audio circuit 260, a wireless fidelity (WiFi) module 270, a processor 280, and a power supply 290.
  • WiFi wireless fidelity
  • the RF circuit 210 can be used for receiving and sending signals during information transmission or communication. In particular, after receiving the downlink information of the base station, it is sent to the processor 280 for processing; in addition, the designed uplink data is sent to the base station.
  • the RF circuit 210 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (Low Noise Amplifier, LNA), a duplexer, etc.
  • the RF circuit 210 can also communicate with the network and other devices through wireless communication.
  • the above-mentioned wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), etc.
  • GSM Global System of Mobile communication
  • GPRS General Packet Radio Service
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • SMS Short Messaging Service
  • the memory 220 can be used to store software programs and modules.
  • the processor 280 executes various functional applications and data processing of the terminal device by running the software programs and modules stored in the memory 220.
  • the memory 220 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the terminal device (such as audio data, a phone book, etc.), etc.
  • the memory 220 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the input unit 230 can be used to receive input digital or character information, and to generate key signal input related to the user settings and function control of the terminal device.
  • the input unit 230 may include a touch panel 231 and other input devices 232.
  • the touch panel 231 also known as a touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel 231 or near the touch panel 231 using any suitable object or accessory such as a finger, stylus, etc.), and drive the corresponding connection device according to a pre-set program.
  • the touch panel 231 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the touch point coordinates, and then sends it to the processor 280, and can receive and execute the command sent by the processor 280.
  • the touch panel 231 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 230 may also include other input devices 232.
  • the other input devices 232 may include but are not limited to one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, etc.
  • the display unit 240 can be used to display information input by the user or information provided to the user and various menus of the terminal device.
  • the display unit 240 may include a display panel 241.
  • the display panel 241 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • the touch panel 231 may cover the display panel 241, when the touch panel 231 detects a touch operation on or near it, it is transmitted to the processor 280 to determine the type of touch event, and then the processor 280 provides a corresponding visual output on the display panel 241 according to the type of touch event.
  • touch panel 231 and the display panel 241 are used as two independent components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 231 and the display panel 241 can be integrated to implement the input and output functions of the terminal device.
  • the terminal device may also include at least one sensor 250, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 241 according to the brightness of the ambient light, and the proximity sensor may turn off the display panel 241 and/or the backlight when the terminal device is moved to the ear.
  • the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary.
  • posture of the terminal device such as horizontal and vertical screen switching, related games, magnetometer posture calibration
  • vibration recognition related functions such as pedometer, tapping
  • other sensors that can be configured in the terminal device, such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc.
  • the audio circuit 260, the speaker 261, and the microphone 262 can provide an audio interface between the user and the terminal device.
  • the audio circuit 260 can transmit the received audio data to the speaker 261 after converting the received audio data into an electrical signal, which is converted into a sound signal for output; on the other hand, the microphone 262 converts the collected sound signal into an electrical signal, which is received by the audio circuit 260 and converted into audio data, and then the audio data is processed by the output processor 280, and then sent to another terminal device through the RF circuit 210, or the audio data is output to the memory 220 for further processing.
  • WiFi is a short-range wireless transmission technology.
  • the terminal device can help users send and receive emails, browse web pages, and access streaming media through the WiFi module 270, which provides users with wireless broadband Internet access.
  • FIG3 shows the WiFi module 270, it is understandable that it is not a necessary component of the terminal device and can be omitted as needed without changing the essence of the invention.
  • the processor 280 is the control center of the terminal device. It uses various interfaces and lines to connect various parts of the entire terminal device. By running or executing software programs and/or modules stored in the memory 220, and calling data stored in the memory 220, it executes various functions of the terminal device and processes data, thereby monitoring the terminal device as a whole.
  • the processor 280 may include one or more processing units; preferably, the processor 280 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 280.
  • the terminal device 200 also includes a power supply 290 (such as a battery) for supplying power to each component.
  • a power supply 290 such as a battery
  • the power supply can be logically connected to the processor 280 through a power management system, so that the power management system can manage charging, discharging, and power consumption management.
  • the terminal device 200 can also include devices such as a camera and a Bluetooth module, which will not be described in detail here.
  • FIG. 4 is a flow chart of a resource allocation method according to an exemplary embodiment.
  • the method shown in FIG. 4 is applied to a terminal device 200, and the method may include the following implementation steps:
  • the above-mentioned sidelink authorization resources disclosed in the present invention can be resources allocated by the network device 100 for the terminal device 200, or can be resources independently selected by the terminal device 200 according to actual needs, which can be determined according to actual conditions, and the present invention does not make too many limitations and details on this.
  • the above-mentioned sidelink authorization resources can be resources in a dedicated resource pool (dedicated resource pool) or resources in a shared resource pool (shared resource pool), which can be determined according to actual conditions, and the present invention does not make too many limitations and details on this.
  • the above-mentioned target destination may refer to the destination (destination) for SL-PRS transmission with the terminal device 200 in the sidelink SL positioning, and the destination may include but is not limited to, for example, another terminal device or the network address of another terminal device, etc., and the present disclosure does not make too many restrictions and details on this.
  • the above-mentioned target SL-PRS may be one or more SL-PRSs included in the target destination, and the present disclosure does not limit the number of the above-mentioned target SL-PRSs, which can be determined according to actual conditions.
  • Figure 5 is a flowchart of another resource allocation method according to an exemplary embodiment.
  • the method shown in Figure 5 can be applied to the terminal device 200, and the method may include the following implementation steps:
  • the above-mentioned destination to be sent to in the present disclosure refers to the destination (destination) used together with the terminal device 200 to realize SL positioning in the side link SL positioning.
  • the relevant description of the destination can be referred to the relevant introduction of the target destination in the aforementioned S401, which will not be repeated here.
  • the above-mentioned destination is the network address of another terminal device
  • the other terminal device corresponding to the destination and the above-mentioned terminal device 200 can transmit SL-PRS, which is used to realize the positioning of the side link SL between the two devices.
  • the transmitted SL-PRS can be specifically used to assist the above-mentioned terminal device 200 in realizing positioning, or can be specifically used to instruct the above-mentioned terminal device 200 to perform positioning measurement and return corresponding positioning measurement information, thereby realizing the positioning of another terminal device of itself, etc., which can be determined according to actual conditions, and the present disclosure does not make too many restrictions and details on this.
  • the terminal device corresponding to the above-mentioned destination may include but is not limited to the above-mentioned RSU, ordinary SL device or other device, etc., which can be referred to the above-mentioned relevant introduction about the terminal device 200, which will not be repeated here.
  • the present disclosure does not limit the number of the above-mentioned destinations, which can be determined according to actual conditions, that is, m is a positive integer determined according to actual conditions.
  • the terminal device 200 can obtain it through the upper layer (such as the SLPP layer), or can obtain it from other devices (such as the destination) through the network, etc.
  • the transmission object in the destination may include, but is not limited to, for example, any one or more combinations of the following: sidelink media access control element (SL MAC CE), data in the SL logical channel, and SL-PRS.
  • SL MAC CE sidelink media access control element
  • the above-mentioned transmission objects can usually include all three, that is, the above-mentioned SL MAC CE, data in the SL logical channel, and SL-PRS.
  • the priority of SL-PRS can be provided by the upper layer of the terminal device 200, or by the corresponding destination.
  • the priority of the data in the above-mentioned SL logical channel is usually provided by the logical channel configuration.
  • the priority of the above-mentioned SL MAC CE can be pre-defined by the protocol, which is usually fixed to 1, etc., and the present disclosure does not make too many restrictions and details on this.
  • the MAC CE involved in the present disclosure may include, but is not limited to, for example, any one or a combination of the following: Sidelink CSI Reporting MAC CE, Sidelink DRX Command MAC CE, Sidelink Sidelink Inter-UE Coordination Request MAC CE and Sidelink Inter-UE Coordination Information MAC CE.
  • MAC CE is important control information, which may include but is not limited to, for example, buffer status report (Buffer Status Report, BSR), power headroom report (Power Headroom Report, PHR) and other information with high real-time reliability requirements, etc., and the present disclosure does not make too many restrictions and details on this.
  • the SL-PRS involved in the present disclosure is used for sidelink SL positioning between the terminal device 200 and the destination (or the device corresponding to the destination). It is a wireless signal used for positioning, which can be called a positioning reference signal.
  • S502. Determine the target destination based on the priority of the transmission object to be sent to the m destinations, where the target destination is one of the m destinations.
  • the present disclosure can determine the target destination based on the priority of each transmission object in the m destinations. Among them, the present disclosure does not limit the implementation method of determining the above-mentioned target destination. For example, in an example implementation, the present disclosure can select the destination corresponding to the transmission object with the highest priority from the m destinations as the above-mentioned target destination. In a specific implementation, the terminal device 200 can send at least one transmission object to each of the m destinations, and each transmission object has a corresponding priority; the terminal device 200 will compare the priorities of all transmission objects corresponding to these destinations, and select the destination corresponding to the transmission object with the highest priority as the above-mentioned target destination. That is, the above-mentioned target destination is the destination of the transmission object with the highest priority among the m destinations.
  • the present disclosure in the process of determining the above-mentioned target destination, needs to consider that the SL-PRS of the destination to be sent meets the preset first condition, and the destination to be sent and its SL-PRS that do not meet the preset first condition are not considered, that is, they cannot be used as the above-mentioned target destination.
  • the SL-PRS in the transmission object of the above-mentioned m destinations must meet the preset first condition.
  • the above-mentioned preset first condition is used to indicate that the above-mentioned side link authorization resources can be used to send the SL-PRS in the corresponding destination.
  • the preset first condition can be a condition customized by the terminal device 200 or the user according to actual needs. For example, it can include that the above-mentioned side link authorization resources meet the transmission requirements of the SL-PRS.
  • the transmission requirement of the SL-PRS may be determined according to the actual transmission of the SL-PRS, or may be customized by the destination to be sent or the network device 100 according to actual needs, and may include but is not limited to any one or more of the following: bandwidth transmission requirement of the SL-PRS (e.g., bandwidth size required for transmitting the SL-PRS, etc.), remaining delay budget requirement of the SL-PRS (e.g., remaining delay time for transmitting the SL-PRS, the remaining delay time refers to the delay budget pre-configured for the SL-PRS when the SL-PRS is triggered to wait for transmission but is not sent);
  • the factors affecting the transmission time of SL-PRS may include but are not limited to parameters such as the number of symbols; taking the number of symbols as an example, the transmission time requirement of SL-PRS may include the number of symbols requirement (such as the number of symbols required to transmit SL-PRS, etc.), the comb size requirement of SL-PRS (such as the
  • the sidelink grant resource meeting the SL-PRS transmission requirements may correspond to, but is not limited to, any one or more of the following combinations: the channel bandwidth of the sidelink grant resource (e.g., PSSCH bandwidth) meets the bandwidth transmission requirements of the SL-PRS (i.e., the channel bandwidth of the SL grant meets The transmission bandwidth of SL-PRS, for example, the channel bandwidth of SL grant is greater than or equal to the transmission bandwidth of SL-PRS, etc.); the above-mentioned sidelink authorization resources meet the residual delay budget requirements of SL-PRS (for example, the transmission delay of SL grant can be less than or equal to the residual delay time of SL-PRS, etc.); the above-mentioned sidelink authorization resources meet the transmission duration requirements of SL-PRS, for example, the above-mentioned sidelink authorization resources meet the symbol number requirements of SL-PRS (for example, the number of symbols included in SL grant can be greater than or equal to the number of symbols required for SL-PRS
  • the resource parameter requirement set may include one or more resource parameters required for SL-PRS transmission, and each resource parameter set may include, but is not limited to, the symbol number, comb size, or other resource parameters for transmitting SL-PRS.
  • each resource parameter set including the symbol number and comb size as an example, at least one resource parameter set (symbol number, comb size) in the sidelink authorized resources of the present disclosure is required to be in the resource parameter set (symbol number, comb size) required for SL-PRS transmission.
  • the above determination of the target destination is determined for a transmission/broadcast type (cast Type). That is to say, the data transmission between the terminal device 200 and each destination is limited to one transmission type, for example, it can be a unicast type, a multicast type or a broadcast type, etc., and the present disclosure does not make too many restrictions and details on this.
  • S503 Allocate the sidelink granted resources acquired by the terminal device to the target SL-PRS of the target destination.
  • the present disclosure can determine the target SL-PRS in the above-mentioned target destination based on at least one SL-PRS in the above-mentioned target destination.
  • the present disclosure does not limit the specific determination implementation method of the above-mentioned target SL-PRS.
  • the present disclosure can select a SL-PRS that meets the preset second condition from at least one SL-PRS in the above-mentioned target destination as the above-mentioned target SL-PRS, etc.
  • the above-mentioned target SL-PRS can be a SL-PRS that meets the preset second condition in the above-mentioned at least one SL-PRS.
  • the present disclosure does not limit the number of the target SL-PRS, which can be determined according to actual conditions.
  • the above-mentioned preset second condition is a condition for selecting the above-mentioned target SL-PRS set by the terminal device or user. For example, it may include but is not limited to any one or more of the following combinations: the above-mentioned side link authorized resources meet the transmission requirements of the SL-PRS, the priority of the SL-PRS is greater than or equal to the preset priority or other custom SL-PRS selection conditions, etc.
  • the above-mentioned preset priority is a threshold priority set by the terminal device or user according to actual needs.
  • the present disclosure can select a SL-PRS with a priority greater than or equal to the preset priority (that is, a higher priority, for example, the priority can be the highest) from at least one SL-PRS in the above-mentioned destination as the above-mentioned target SL-PRS, etc.
  • a SL-PRS with a priority greater than or equal to the preset priority that is, a higher priority, for example, the priority can be the highest
  • the transmission requirements of the above-mentioned SL-PRS and the sidelink authorized resources meeting the transmission requirements of the SL-PRS please refer to the relevant introduction in the above-mentioned embodiments, which will not be repeated here.
  • the present disclosure may further select the SL logical channel (specifically, data in the SL logical channel) and/or SL MAC CE to be transmitted from the above target destination, and then allocate resources to the selected SL logical channel and/or SL MAC CE.
  • the SL logical channel specifically, data in the SL logical channel
  • SL MAC CE SL MAC CE
  • the present disclosure when the present disclosure performs resource allocation (e.g., performs resource allocation based on the LCP mechanism), the data in the SL-PRS and the sidelink traffic channel (STCH) have the same priority, and the sidelink traffic channel is a channel in the SL logical channel.
  • the SL logical channel may include, but is not limited to, logical channels such as the sidelink traffic channel STCH and the sidelink control channel (SCCH), and the present disclosure does not make too many restrictions and details on this.
  • priority processing can be performed according to the rules shown in Table 2 below.
  • the present disclosure can allocate resources based on the sidelink authorization resources obtained by the terminal device and the target SL-PRS to obtain the SL-PRS resources occupied by the target SL-PRS.
  • the SL-PRS resources may include, but are not limited to, for example, an identifier (ID) of the SL-PRS resource, a transport block size (Transport Block size, TB size) corresponding to the SL-PRS resource, resource elements (Resource Element, RE) occupied/included by the transport block, or other resource description information.
  • the terminal device 200 may first determine whether the target SL-PRS needs to be transmitted. Specifically, for example, the MAC layer of the terminal device 200 may determine whether the target SL-PRS needs to be transmitted.
  • the present disclosure does not limit the implementation of determining whether the target SL-PRS needs to be transmitted. For example, it may include but is not limited to any one or more combinations of the following implementations, or other custom implementations, etc.:
  • whether the above-mentioned side link authorization resources support the transmission/sending of the above-mentioned target SL-PRS can determine whether the above-mentioned side link authorization resources support the sending of the above-mentioned target SL-PRS by judging whether the above-mentioned side link authorization resources meet the transmission requirements of the above-mentioned target SL-PRS.
  • the above-mentioned side link authorization resources meet the transmission requirements of the above-mentioned target SL-PRS please refer to the relevant introduction in the aforementioned embodiment, which will not be repeated here.
  • whether the sidelink authorization resource supports the transmission/sending of the target SL-PRS is determined based on the priority and size of the transmission object of the target destination, and the transmission object may include the SL-PRS to be transmitted in the target destination, the SLMAC CE and the data in the SL logical channel.
  • the present disclosure can determine whether the sidelink authorization resources can be used to send the target SL-PRS based on the priority and size of all SL-PRS to be transmitted in the target destination, SLMAC CE and data in the SL logical channel.
  • the sidelink authorization resources can be used to send the target SL-PRS it can be determined that the target SL-PRS needs to be transmitted; otherwise, it can be determined that the target SL-PRS does not need to be transmitted.
  • the present disclosure can determine whether the sidelink authorization resource explicitly indicates support for transmission of SL-PRS.
  • the sidelink authorization resource explicitly indicates support for transmission of SL-PRS it can be determined that the target SL-PRS needs to be transmitted; otherwise, it can be determined that the target SL-PRS does not need to be transmitted.
  • a fourth implementation manner when the sidelink authorization resource is an authorization resource autonomously selected by the terminal device 200, whether the sidelink authorization resource supports the transmission of the target SL-PRS.
  • the present disclosure can determine whether the sidelink authorization resource can be used to send the target SL-PRS.
  • the specific judgment implementation manner can refer to the relevant description in the above two implementation manners, which will not be repeated here.
  • the present disclosure may further allocate the SL-PRS resources occupied by the target SL-PRS.
  • the present disclosure does not limit the specific implementation of the SL-PRS resource allocation.
  • the SL-PRS resource or its resource identifier (ID) may be provided by an upper layer (e.g., SLPP layer) of the terminal device 200.
  • the present disclosure may obtain SL-PRS transmission parameters for transmitting the target SL-PRS, and the SL-PRS transmission parameters include but are not limited to, for example, the number of symbols, comb size, SL-PRS bandwidth or other customized parameters for transmitting the target SL-PRS.
  • the terminal device 200 may determine the SL-PRS resources corresponding to/matching the SL-PRS transmission parameters based on the SL-PRS transmission parameters.
  • the present disclosure does not limit the implementation method for obtaining the above-mentioned SL-PRS transmission parameters.
  • it may include but is not limited to any one or more combinations of the following example implementation methods, which can be determined according to actual conditions.
  • the present disclosure does not make too many limitations and details on this:
  • the SL-PRS transmission parameters may be provided by an upper layer (e.g., SLPP layer) of the terminal device 200, or may be SL-PRS transmission parameters selected from a group of transmission parameters provided by an upper layer (e.g., SLPP layer) of the terminal device 200 for transmitting the target SL-PRS.
  • the MAC layer of the terminal device 200 may select the SL-PRS transmission parameters for transmitting the target SL-PRS from a group of transmission parameters according to actual needs; and then determine the SL-PRS resources corresponding to/matching the SL-PRS transmission parameters based on the SL-PRS transmission parameters.
  • the upper layer (such as the SLPP layer) of the terminal device 200 does not provide the above-mentioned SL-PRS transmission parameters, and the above-mentioned SL-PRS transmission parameters can be determined by the terminal device 200 itself.
  • the MAC layer of the terminal device 200 can determine the SL-PRS transmission parameters corresponding to the positioning QoS requirements based on the preset positioning service quality Qos requirements.
  • the positioning service quality Qos requirements refer to the service quality requirements related to positioning, which can be customized according to actual needs.
  • the MAC layer can select the transmission parameters with a larger number of symbols and a smaller comb size as the transmission parameters for transmitting the above-mentioned target.
  • the present disclosure does not make too many limitations or details on the SL-PRS transmission parameters of the SL-PRS.
  • the upper layer (such as the SLPP layer) of the terminal device 200 does not provide the above-mentioned SL-PRS transmission parameters, and the above-mentioned SL-PRS transmission parameters can be determined by the terminal device 200 itself.
  • the MAC layer of the terminal device 200 can determine the SL-PRS transmission parameters that match/comply with the channel conditions based on the channel conditions between the terminal device 200 and the target destination.
  • the channel conditions include, but are not limited to, information such as channel quality (i.e., the quality of the sidelink SL between the terminal device 200 and the target destination), channel bandwidth, or other channel parameters that affect channel transmission.
  • the MAC layer of the terminal device 200 can determine the transmission parameters such as the number of symbols that match the current quality based on the current quality of the sidelink SL between the terminal device 200 and the target destination.
  • the above-mentioned SL-PRS transmission parameters include multiple transmission parameters
  • some of the parameters in the SL-PRS transmission parameters may be provided by the SLPP layer of the terminal device 200, and some of the parameters may also be determined by the MAC layer of the terminal device 200 itself (which may be determined according to the preset positioning QoS requirements and/or the channel conditions between the terminal device 200 and the target destination).
  • the comb size in the above-mentioned SL-PRS transmission parameters may be provided by the SLPP layer of the terminal device 200, and the number of symbols in the above-mentioned SL-PRS transmission parameters may be determined by the MAC layer of the terminal device 200 itself.
  • the relevant information provided by the above-mentioned SLPP layer may be obtained through its upper layer configuration, or may be sent by the receiving network device 200 (such as a base station or LMF) or a service terminal (server UE).
  • the service terminal refers to a terminal device that can provide positioning services, which may be a device in the terminal devices corresponding to the above-mentioned m destinations to be sent, or may be other terminal devices that can provide positioning services, etc., which are not limited in the present disclosure.
  • a symbol is used by SL-PRS transmission, no matter how much comb size it includes, the entire symbol is considered to be occupied by SL-PRS transmission.
  • the terminal device 200 of the present invention can send the above-mentioned target SL-PRS to the target destination based on the above-mentioned side link authorization resources. Specifically, the terminal device 200 can use the above-mentioned SL-PRS resources to send the above-mentioned target SL-PRS to the target destination to achieve side link SL positioning between the terminal device 200 and the target destination.
  • the present disclosure may determine the remaining transmission resources based on the side link authorization resources and the SL-PRS resources, and the remaining transmission resources are other remaining resources in the side link authorization resources except the SL-PRS resources.
  • the remaining transmission resources can be used to transmit data in the SL MAC CE and/or SL logical channel.
  • the remaining transmission resources may be determined by the MAC layer of the terminal device 200 or the physical (Physical, PHY) layer of the terminal device 200.
  • the resource element RE occupied by the above-mentioned SL-PRS resource can be subtracted/removed from the transmission block size (TB size) corresponding to the above-mentioned side link authorization resource, thereby obtaining the above-mentioned remaining transmission resources, that is, the transmission block size (TB size) after removing the above-mentioned SL-PRS resource, etc.
  • the RE subtraction processing can be omitted for the transmission block size (TB size) corresponding to the above-mentioned side link authorization resource.
  • the MAC layer of the terminal device 200 can indicate the above-mentioned SL-PRS resources or the identifier of the above-mentioned SL-PRS resources to the PHY layer when determining that the above-mentioned target SL-PRS needs to be transmitted, that is, the MAC layer indicates the SL-PRS resources or its identifier occupied by the above-mentioned target SL-PRS to the PHY layer.
  • the PHY layer can remove/remove the resource elements RE occupied by the above-mentioned SL-PRS resources from the transmission block size (TB size) corresponding to the above-mentioned sidelink authorization resources, thereby obtaining the above-mentioned remaining transmission resources, that is, the transmission block size (TB size) after removing the above-mentioned SL-PRS resources, etc. Then the PHY layer indicates the above-mentioned remaining transmission resources to the MAC layer, that is, the transmission block size (TB size) after removing the above-mentioned SL-PRS resources, etc.
  • the indication between the MAC layer and the PHY layer may be transmitted using corresponding indication information.
  • the MAC layer may send first indication information to the PHY layer, and the first indication information is used to indicate the SL-PRS resource or the identifier of the SL-PRS resource.
  • the PHY layer may send second indication information to the MAC layer, and the second indication information is used to indicate the remaining transmission resources, that is, the transmission block size (TB size) after removing the SL-PRS resource.
  • TB size transmission block size
  • the MAC layer of the terminal device 200 may instruct the PHY layer to use the above-mentioned SL-PRS resources to send the above-mentioned target SL-PRS.
  • the MAC layer may send third indication information to the PHY layer, and the third indication information is used to instruct the PHY layer to use the above-mentioned SL-PRS resources to send the above-mentioned target SL-PRS to the above-mentioned target destination.
  • the terminal device when performing resource allocation, may maximize the objects to be transmitted between the terminal device 200 and the target destination, and the objects to be transmitted include the data in the SL-PRS and/or SL logical channel.
  • the terminal device when the terminal device performs resource allocation based on the LCP mechanism, the data in the SL-PRS and/or SL logical channel to be transmitted may be maximized, that is, if the above-mentioned side link authorization resources allow, more data in the above-mentioned SL-PRS and/or SL logical channel may be transmitted.
  • the MAC layer of the terminal device 200 when performing resource allocation, needs to ensure that the data in the above-mentioned SL-PRS and/or SL logical channel is greater than or equal to the corresponding preset threshold value, and the preset threshold value may be affected by factors such as the above-mentioned side link authorization resources, and it may be customized according to actual conditions, etc., and the present disclosure does not limit this.
  • a MAC protocol data unit may not be generated, that is, the generation of MAC PDU may be prohibited.
  • the data to be transmitted may include MAC CE, MAC service data unit (SDU) and SL-PRS.
  • the terminal device 200 when there is SL-PRS that needs to be transmitted in the terminal device 200, the terminal device 200 can generate a MAC PDU, and multiplex the generated MAC PDU and the SL-PRS that needs to be transmitted in the same time slot using TDM.
  • the MAC layer of the terminal device 200 can fill and generate a MAC PDU, which can be called a padding PDU; then the padding PDU and the above-mentioned SL-PRS that need to be transmitted are multiplexed in the same time slot using TDM for transmission.
  • the MAC layer of the terminal device 200 can be the above-mentioned MAC CE and/or MAC SDU data.
  • a MAC PDU is generated according to the data; then the padding PDU and the SL-PRS to be transmitted are multiplexed in the same time slot using TDM mode for transmission, etc. It should be noted that the above-mentioned optional embodiments can be implemented separately or in combination with any one or more of the implementation methods, which can be determined according to actual needs, and the present disclosure does not limit this.
  • the terminal device can allocate the sidelink authorization resources obtained by the terminal device to the target SL-PRS of the target destination based on the priority of the sidelink positioning reference signal SL-PRS. It can be seen that the terminal device can allocate resources for the target SL-PRS of the target destination based on the priority of the SL-PRS, so that the subsequent terminal device can use the allocated sidelink authorization resources to send the target SL-PRS to the target destination, thereby realizing the sidelink SL positioning between the terminal device and the target destination (or the device corresponding to the target destination). In this way, the resource allocation of the sidelink authorization resources to the SL-PRS is realized, which is conducive to improving the rationality and reliability of resource allocation, and does not affect the positioning effect of the sidelink SL.
  • FIG6 is a schematic diagram of a resource allocation device according to an exemplary embodiment.
  • the device shown in FIG6 can be applied to a terminal device 200, and the device can include a processing module 601, wherein:
  • the processing module 601 is configured to allocate the sidelink granted resources acquired by the terminal device to the target SL-PRS of the target destination based on the priority of the sidelink positioning reference signal SL-PRS.
  • the processing module 601 is configured to:
  • the transmission objects include a sidelink media access control element SL MAC CE, data in an SL logical channel and an SL-PRS, where m is a positive integer;
  • the sidelink granted resources acquired by the terminal device are allocated to the target SL-PRS of the target destination.
  • the determining the target destination based on the priority of the transmission object to be sent to the m destinations comprises:
  • a destination corresponding to the transmission object with the highest priority is selected from the m destinations as the target destination.
  • the SL-PRS in the transmission objects of the m destinations needs to meet a preset first condition, and the preset first condition includes that the sidelink authorized resources meet the transmission requirements of the SL-PRS.
  • the processing module 601 is configured to:
  • Resource allocation is performed based on the side link authorized resources obtained by the terminal device and the target SL-PRS to obtain the SL-PRS resources occupied by the target SL-PRS, and the side link authorized resources include the SL-PRS resources.
  • the target SL-PRS is a SL-PRS among the at least one SL-PRS that satisfies a preset second condition
  • the preset second condition includes: the side link authorization resources meet the transmission requirements of the SL-PRS, and/or the priority of the SL-PRS is greater than or equal to a preset priority.
  • the processing module 601 is configured to:
  • the determination that the target SL-PRS needs to be transmitted includes at least one of the following: the sidelink authorization resources meet the transmission requirements of the target SL-PRS; the sidelink authorization resources are determined to support the transmission of the target SL-PRS based on the priority and size of the transmission object of the target destination; when the sidelink authorization resources are authorization resources allocated by the network device, the sidelink authorization resources indicate support for transmission of the SL-PRS; when the sidelink authorization resources are authorization resources selected by the terminal device, the sidelink authorization resources support transmission of the target SL-PRS.
  • processing module 601 is further configured to:
  • the remaining transmission resources are determined, where the remaining transmission resources are the remaining resources in the sidelink granted resources excluding the SL-PRS resources, and the remaining transmission resources are used to transmit data in the SL MAC CE and/or SL logical channel.
  • the remaining transmission resources are determined by the MAC layer or PHY layer of the terminal device; wherein, when the remaining transmission resources are determined by the PHY layer of the terminal device, the MAC layer of the terminal device indicates the SL-PRS resources to the PHY layer of the terminal device, and the PHY layer of the terminal device indicates the remaining transmission resources to the MAC layer of the terminal device.
  • FIG. 7 a schematic diagram of another resource allocation device according to an exemplary embodiment.
  • the device shown in FIG. 7 can be applied to a terminal device 200, and the device can include the above-mentioned processing module 601 and can also include a communication module 602, wherein:
  • the communication module 602 is configured so that the MAC layer of the terminal device instructs the PHY layer of the terminal device to use the SL-PRS resource to send the target SL-PRS to the target destination.
  • the processing module 601 is further configured to maximize the objects to be transmitted between the terminal device and the target destination when the terminal device performs resource allocation, and the objects to be transmitted include data in the SL-PRS and/or SL logical channel.
  • the SL-PRS and data in a through link service channel STCH have the same priority, and the through link service channel is a channel in the SL logical channel.
  • the processing module 601 is also configured to prohibit generating a MAC protocol data unit MAC PDU when there is no data to be transmitted in the terminal device, and the data to be transmitted includes MAC CE, MAC service data unit MAC SDU and SL-PRS; or, when there is SL-PRS to be transmitted in the terminal device, generate a MAC PDU, and multiplex the SL-PRS to be transmitted and the MAC PDU in the same time slot for transmission.
  • the sidelink granted resource is a resource in a shared resource pool.
  • the sidelink granted resources satisfying the transmission requirements of the SL-PRS include at least one of the following:
  • the channel bandwidth of the sidelink granted resource meets the bandwidth transmission requirement of the SL-PRS
  • the sidelink granted resources meet the remaining delay budget requirement of the SL-PRS;
  • the sidelink granted resources meet the transmission duration requirement of the SL-PRS;
  • the sidelink granted resources meet the comb structure size requirement of the SL-PRS;
  • the sidelink granted resources have at least one set of resource parameters located in the resource parameter requirement set of the SL-PRS, and the resource parameters include the number of symbols and the size of the comb structure.
  • the processing module 601 is configured to obtain a SL-PRS transmission parameter, the SL-PRS transmission parameter is used to transmit the target SL-PRS; based on the SL-PRS transmission parameter, determine The SL-PRS resources corresponding to the SL-PRS transmission parameters.
  • the SL-PRS transmission parameter is determined based on at least one of the following:
  • Fig. 8 is a schematic diagram of the structure of a terminal device according to an exemplary embodiment.
  • the terminal device 200 may include one or more of the following components: a processing component 3002 , a memory 3004 , and a communication component 3006 .
  • the processing component 3002 can be used to control the overall operation of the terminal device 200, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 3002 can include one or more processors 3020 to execute instructions to complete all or part of the steps of the above-mentioned resource allocation method.
  • the processing component 3002 can include one or more modules to facilitate the interaction between the processing component 3002 and other components.
  • the processing component 3002 can include a multimedia module to facilitate the interaction between the multimedia component and the processing component 3002.
  • the memory 3004 is configured to store various types of data to support operations on the terminal device 200. Examples of such data include instructions for any application or method operating on the terminal device 200, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 3004 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable programmable read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • the communication component 3006 is configured to facilitate wired or wireless communication between the terminal device 200 and other devices.
  • the terminal device 200 can access a wireless network based on a communication standard, such as Wi-Fi, 2G, 3G, 4G, 5G, 6G, NB-IOT, eMTC, etc., or a combination thereof.
  • the communication component 3006 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel.
  • the communication component 3006 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the terminal device 200 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned resource allocation method.
  • ASICs application-specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • controllers microcontrollers, microprocessors or other electronic components to execute the above-mentioned resource allocation method.
  • the terminal device 200 may be an independent electronic device or a part of an independent electronic device.
  • the electronic device may be an integrated circuit (IC) or a chip, wherein the integrated circuit may be one IC or a collection of multiple ICs; the chip may include but is not limited to the following types: GPU (Graphics Processing Unit), CPU (Central Processing Unit), FPGA (Field Programmable Gate Array), DSP (Digital Signal Processor), ASIC (Application ASIC) Specific Integrated Circuit, dedicated integrated circuit), SOC (System on Chip, SoC, system on chip or system-level chip), etc.
  • the above-mentioned integrated circuit or chip can be used to execute executable instructions (or codes) to implement the above-mentioned resource allocation method.
  • the executable instructions can be stored in the integrated circuit or chip, and can also be obtained from other devices or equipment.
  • the integrated circuit or chip includes a processor, a memory, and an interface for communicating with other devices.
  • the executable instructions can be stored in the processor, and the above-mentioned resource allocation method is implemented when the executable instructions are executed by the processor; or, the integrated circuit or chip can receive the executable instructions through the interface and transmit them to the processor for execution, so as to implement the above-mentioned resource allocation method.
  • the present disclosure further provides a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implement the steps of the resource allocation method provided by the present disclosure.
  • the computer-readable storage medium may be a non-temporary computer-readable storage medium including instructions, for example, the above-mentioned memory 3004 including instructions, and the above-mentioned instructions may be executed by the processor 3020 of the terminal device 200 to complete the above-mentioned resource allocation method.
  • the non-temporary computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
  • Fig. 9 is a schematic diagram of a chip structure according to an exemplary embodiment. If the terminal device 200 can be a chip or a chip system, please refer to the schematic diagram of the chip structure 400 shown in Fig. 9, but it is not limited thereto.
  • the chip 400 includes one or more processors 401 , and the chip 400 is configured to execute any of the above methods.
  • the chip 400 further includes one or more interface circuits 402.
  • the interface circuit 402 is connected to the memory 403, and the interface circuit 402 can be used to receive signals from the memory 403 or other devices, and the interface circuit 402 can be used to send signals to the memory 403 or other devices.
  • the interface circuit 402 can read instructions stored in the memory 403 and send the instructions to the processor 401.
  • the interface circuit 402 performs at least one of the communication steps such as sending and/or receiving in the above method (for example, sending the target SL-PRS to the target destination, etc., but not limited to this), and the processor 401 performs at least one of the other steps (for example, step 401, step 501, step 502 and step 503, etc.).
  • interface circuit interface circuit
  • transceiver pin transceiver
  • the chip 400 further includes one or more memories 403 for storing instructions.
  • the memory 403 may be outside the chip 400.
  • the present disclosure further proposes a computer-readable storage medium, on which instructions are stored, and when the instructions are executed on the terminal device 200, the terminal device 200 executes any of the above methods.
  • the storage medium is an electronic storage medium.
  • the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices.
  • the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.
  • a computer program product is further provided.
  • the computer program product includes a computer program executable by a programmable device.
  • the computer program has a code portion for executing the above resource allocation method when executed by the programmable device.

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

Abstract

La présente divulgation concerne un procédé et un appareil d'attribution de ressources, un dispositif et un support de stockage. Le procédé consiste à : sur la base de la priorité d'un signal de référence de positionnement de liaison latérale (SL-PRS), attribuer, à un SL-PRS cible au niveau d'une destination cible, des ressources d'autorisation de liaison latérale acquises par un dispositif terminal. Ceci facilite une amélioration de la rationalité et de la fiabilité de l'attribution de ressources, sans affecter l'effet de positionnement d'une liaison latérale (SL).
PCT/CN2023/122336 2023-09-27 2023-09-27 Procédé et appareil d'attribution de ressources, dispositif et support de stockage Pending WO2025065430A1 (fr)

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CN202380011275.2A CN117546584A (zh) 2023-09-27 2023-09-27 资源分配方法、装置、设备及存储介质
PCT/CN2023/122336 WO2025065430A1 (fr) 2023-09-27 2023-09-27 Procédé et appareil d'attribution de ressources, dispositif et support de stockage

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115643636A (zh) * 2021-07-19 2023-01-24 维沃移动通信有限公司 定位方法及装置
US20230094751A1 (en) * 2021-09-24 2023-03-30 Qualcomm Incorporated Processing positioning reference signals according to priority
CN116097798A (zh) * 2022-11-11 2023-05-09 北京小米移动软件有限公司 基于侧行链路的定位参考信号prs资源确定方法和装置

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CN115643636A (zh) * 2021-07-19 2023-01-24 维沃移动通信有限公司 定位方法及装置
US20230094751A1 (en) * 2021-09-24 2023-03-30 Qualcomm Incorporated Processing positioning reference signals according to priority
CN116097798A (zh) * 2022-11-11 2023-05-09 北京小米移动软件有限公司 基于侧行链路的定位参考信号prs资源确定方法和装置

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