Resource determination method, terminal, communication system and storage medium

Abstract

The present disclosure relates to a resource determination method, a terminal, a communication system and a storage medium. The method comprises: determining that there are other candidate resources other than a first candidate resource in a current time slot; determining a second candidate resource from among the other candidate resources; and transmitting a first sidelink positioning reference signal (SL PRS) on the second candidate resource, wherein the first SL PRS is a common sequence configured by means of a resource pool, the first candidate resource is a candidate resource for sending a second SL PRS after a physical sidelink control channel (PSCCH) signal is sent in the current time slot, and the second SL PRS carries a sequence configured to a second terminal by a first terminal by means of sidelink high layer signaling. The present disclosure realizes continuous transmission of SL PRSs, such that a channel occupied by the SL PRSs on unlicensed frequency channels is not interrupted.

Description

Resource determination method, terminal, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a resource determination method, a terminal, a communication system, and a storage medium. Background Art

[0002] Terminal devices may communicate with each other via a sidelink (SL), for example, by transmitting a sidelink positioning reference signal (SL PRS) to perform SL positioning (Sidelink Positioning).

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a resource determination method, a terminal, a communication system, and a storage medium.

[0005] In one aspect, a resource determination method is proposed according to an embodiment of the present disclosure, the method comprising:

[0006] Determining that other candidate resources other than the first candidate resource exist in the current time slot; determining a second candidate resource from the other candidate resources;

[0007] Sending a first sidelink positioning reference signal SL PRS on the second candidate resource, where the first SL PRS is a common sequence configured by the resource pool;

[0008] Among them, the first candidate resource is a candidate resource for sending the second SL PRS after sending the physical direct control channel PSCCH signal in the current time slot, and the second SL PRS carries the sequence configured by the first terminal to the second terminal through sidelink high-layer signaling.

[0009] On the other hand, an embodiment of the present disclosure provides a terminal, comprising:

[0010] A processing module, configured to determine whether other candidate resources other than the first candidate resource exist in the current time slot; and determine a second candidate resource from the other candidate resources;

[0011] A sending module: sending a first sidelink positioning reference signal SL PRS on the second candidate resource, where the first SL PRS is a common sequence configured through the resource pool;

[0012] Among them, the first candidate resource is a candidate resource for sending the second SL PRS after sending the physical direct control channel PSCCH signal in the current time slot, and the second SL PRS carries the sequence configured by the first terminal to the second terminal through sidelink high-layer signaling.

[0013] On the other hand, an embodiment of the present disclosure provides a terminal, including:

[0014] one or more processors;

[0015] The terminal is used to execute any one of the resource determination methods in the embodiments of the present disclosure.

[0016] On the other hand, an embodiment of the present disclosure proposes a communication system, including a terminal; wherein the terminal is configured to implement any one of the resource determination methods in the embodiments of the present disclosure.

[0017] On the other hand, an embodiment of the present disclosure provides a storage medium, which, when instructions are executed on a communication device, enables the communication device to execute any one of the resource determination methods of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0019] FIG1A is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0020] FIG1B is a schematic diagram showing time division multiplexing of different UEs using comb offsets in different candidate opportunities within a time slot according to an embodiment of the present disclosure;

[0021] FIG1C is a schematic diagram illustrating transmission of multiple consecutive time slots according to an embodiment of the present disclosure;

[0022] FIG1D is a schematic diagram showing a UE sending a channel occupancy signal on an empty physical direct connection feedback channel according to an embodiment of the present disclosure.

[0023] FIG1E is a schematic diagram illustrating a situation in which the first candidate opportunity in a time slot is not occupied by a UE, resulting in channel loss according to an embodiment of the present disclosure;

[0024] FIG2 is one of interactive schematic diagrams illustrating a resource determination method according to an embodiment of the present disclosure;

[0025] FIG3 is a schematic diagram showing a flow chart of a resource determination method according to an embodiment of the present disclosure;

[0026] FIG4 is a second interactive schematic diagram of a resource determination method according to an embodiment of the present disclosure;

[0027] FIG5A is a schematic diagram of sending a common sequence of positioning reference signals using comb offsets of candidate opportunities proposed in an embodiment of the present disclosure;

[0028] FIG5B is a schematic diagram of sending a common sequence of positioning reference signals on a bandwidth corresponding to a resource pool proposed in an embodiment of the present disclosure;

[0029] FIG5C is a schematic diagram of sending a common sequence of a positioning reference signal on a first PRB set proposed in an embodiment of the present disclosure;

[0030] FIG5D is a schematic diagram of sending a common sequence of positioning reference signals on a first RE set proposed in an embodiment of the present disclosure;

[0031] FIG6A is a schematic structural diagram of a terminal 101 proposed in an embodiment of the present disclosure;

[0032] FIG6B is a schematic structural diagram of the terminal 102 proposed in an embodiment of the present disclosure;

[0033] FIG7A is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure;

[0034] FIG7B is a schematic diagram of the structure of the chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] The embodiments of the present disclosure provide a resource determination method, a terminal, a communication system, and a storage medium.

[0036] In a first aspect, an embodiment of the present disclosure provides a resource determination method, the method comprising:

[0037] Determining that other candidate resources other than the first candidate resource exist in the current time slot; determining a second candidate resource from the other candidate resources;

[0038] Sending a first sidelink positioning reference signal SL PRS on the second candidate resource, where the first SL PRS is a common sequence configured by the resource pool;

[0039] Among them, the first candidate resource is a candidate resource for sending the second SL PRS after sending the physical direct control channel PSCCH signal in the current time slot, and the second SL PRS carries the sequence configured by the first terminal to the second terminal through sidelink high-layer signaling.

[0040] In the above embodiment, the second candidate resource is determined from other candidate resources other than the first candidate resource in the current time slot, and the first SL PRS is sent to the second candidate resource. This can avoid the loss of channel occupancy time of other candidate resources in the time slot because other terminals do not send the second SL PRS.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the second candidate resource is any one of the following:

[0042] A candidate resource that precedes the first candidate resource among other candidate resources; or

[0043] The second candidate resource is other candidate resources.

[0044] In the above embodiment, the second candidate resource is determined among the candidate resources that are located before the first candidate resource among other candidate resources, or the second candidate resource is determined among other candidate resources, so that in both cases where the terminal supports the continuous sending mechanism and does not support the continuous sending mechanism, the loss of channel occupancy time of other candidate resources in the time slot is avoided because the second SL PRS is not sent by other terminals.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, the second candidate resource includes at least one of the following:

[0046] The first candidate time for resource pool configuration; and

[0047] The first comb offset of the first candidate opportunity for resource pool configuration.

[0048] In the above embodiment, the candidate timing for sending the first SL PRS and the comb offset of the candidate timing are determined according to the resource pool configuration, thereby reducing the time required for determining the candidate resources for sending the first SL PRS.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first SL PRS includes:

[0050] Sending a first SL PRS at the bandwidth corresponding to the resource pool; or

[0051] Sending a first SL PRS in a first frequency domain resource of the bandwidth;

[0052] Among them, the first frequency domain resource is:

[0053] The first PRB set on the bandwidth, the first SL PRS sent on the first PRB set and the first SL PRS sent on the bandwidth have a one-to-one corresponding bit; or,

[0054] The first RE set on the bandwidth, the first SL PRS sent on the first RE set and the bits at which the first SL PRS is sent on the bandwidth have a one-to-one correspondence.

[0055] In the above embodiment, the first SL PRS is sent on the first PRB set or the first RE set. The first PRB set or the first RE set is a subset of the bandwidth corresponding to the resource pool, which reduces the occupation of bandwidth resources by sending the first SL PRS.

[0056] In conjunction with some embodiments of the first aspect, in some embodiments, the first SL PRS is generated according to the first SL PRS sequence number;

[0057] The first SL PRS sequence number is determined by any of the following methods:

[0058] Resource pool pre-configuration;

[0059] Determined according to a preset cyclic redundancy check code CRC;

[0060] According to the preset bit of the first CRC, the first CRC is the CRC corresponding to the preset PSCCH payload.

[0061] In the above embodiment, multiple methods are provided to determine the sequence number of the first SL PRS, so that there are multiple options for generating the first SL PRS.

[0062] In combination with some embodiments of the first aspect, in some embodiments, the resource pool includes a set of time domain resources and frequency domain resources determined by the first terminal.

[0063] In the above embodiment, the resource pool includes time domain resources and frequency domain resources determined by the first terminal, which are used to determine the second candidate resources corresponding to the first SL PRS, and determine the frequency domain resources corresponding to the first SL PRS.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0065] The interval between the first sending time and the sending time corresponding to the second candidate resource is greater than the duration threshold, and the CPE corresponding to the first SL PRS is sent between the first sending time and the sending time corresponding to the second candidate resource;

[0066] Among them, the first signal or the first channel is sent at the first sending moment, the first signal is the first SL PRS or the second SL PRS, and the first channel is PSCCH.

[0067] In the above embodiment, when the transmission interval between the first SL PRS and the previous adjacent first SL PRS, second SL PRS or PSCCH is greater than the duration threshold, the CPE corresponding to the first SL PRS is sent so that the channel occupancy is not interrupted by other services.

[0068] In combination with some embodiments of the first aspect, in some embodiments, the CPE corresponding to the first SL PRS includes: a CPE sent before the sending time corresponding to the second candidate resource in the current time slot.

[0069] In the above embodiment, the CPE transmitted before the transmission time corresponding to the second candidate resource in the current time slot is used for channel occupation, so that the channel occupation of the first terminal is not interrupted by other services.

[0070] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0071] When the interval between the second sending time and the sending time corresponding to the first candidate resource is greater than the duration threshold, the CPE corresponding to the second SL PRS is sent between the second sending time and the sending time corresponding to the first candidate resource;

[0072] Among them, the second signal or the first channel is sent at the second sending moment, the second signal is the first SL PRS, and the first channel is PSCCH.

[0073] In the above embodiment, when the transmission interval between the second SL PRS and the previous adjacent first SL PRS or PSCCH is greater than the duration threshold, the CPE corresponding to the second SL PRS is sent so that the channel occupancy is not interrupted by other services.

[0074] In combination with some embodiments of the first aspect, in some embodiments, the CPE corresponding to the second SL PRS includes: a CPE sent before the sending time corresponding to the first candidate resource in the current time slot.

[0075] In the above embodiment, the CPE transmitted before the transmission time corresponding to the first candidate resource in the current time slot is used for channel occupation, so that the channel occupation of the first terminal is not interrupted by other services.

[0076] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first SL PRS includes: sending the first SL PRS according to a first transmit power;

[0077] The first transmit power is determined according to any one of the following methods:

[0078] Determined according to the first number and the power obtained in the power control process of the first SL PRS, the first number is the number of second comb offsets reserved by the first terminal in the first candidate opportunity, and the second comb offset is the comb offset of the candidate resource corresponding to the first SL PRS;

[0079] It is determined according to the size of the first comb offset and the power obtained in the power control process of the first SL PRS.

[0080] In the above embodiment, when it is detected that other terminals in the first candidate opportunity reserve the second comb offset as the transmission resource of the first SL PRS, the transmission power of the first SL PRS is reduced, and the power of transmitting the first SL PRS in the first candidate opportunity is reduced.

[0081] In a second aspect, an embodiment of the present disclosure provides a terminal, comprising:

[0082] A processing module, configured to determine whether other candidate resources other than the first candidate resource exist in the current time slot; and determine a second candidate resource from the other candidate resources;

[0083] A sending module: sending a first sidelink positioning reference signal SL PRS on the second candidate resource, where the first SL PRS is a common sequence configured through the resource pool;

[0084] Among them, the first candidate resource is a candidate resource for sending the second SL PRS after sending the physical direct control channel PSCCH signal in the current time slot, and the second SL PRS carries the sequence configured by the first terminal to the second terminal through sidelink high-layer signaling.

[0085] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0086] one or more processors;

[0087] The terminal is used to execute any one of the resource determination methods in the first aspect.

[0088] In a fourth aspect, an embodiment of the present disclosure proposes a communication system, comprising a terminal; wherein the terminal is configured to implement any one of the resource determination methods in the first aspect.

[0089] In a fifth aspect, an embodiment of the present disclosure proposes a storage medium, which, when an instruction is executed on a communication device, enables the communication device to execute any resource determination method as described in the first aspect.

[0090] In a sixth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation manner of the first aspect.

[0091] In a seventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation manner of the first aspect.

[0092] In an eighth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation manner of the first aspect.

[0093] It is understandable that the above-mentioned terminals, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0094] The embodiments of the present disclosure provide a resource determination method, a terminal, a communication system, and a storage medium. In some embodiments, the terms resource determination method, signal transmission method, wireless frame transmission method, etc. are interchangeable, and the terms information processing system, communication system, etc. are interchangeable.

[0095] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, 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. In addition, 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 steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0096] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0097] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0098] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0099] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0100] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on 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); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0101] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on 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). The above is also applicable when there are more branches such as A, B, C, etc.

[0102] The 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 any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if 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". "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". For another example, if 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". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different. For another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0103] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0104] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0105] In some embodiments, terms such as "greater than", "less 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 less 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", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0106] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0107] In some embodiments, “access network device (AN device)”, “radio access network device (radio

[0108] The terms access network device (RAN device),” “base station (BS)”, “radio base station”, “fixed station”, “node”, “access point”, “transmission point (TP)”, “reception point (RP)”, “transmission / reception point (TRP)”, “panel”, “antenna panel”, “antenna array”, “cell”, “macro cell”, “small cell”, “femto cell”, “pico cell”, “sector”, “cell group”, “carrier”, “component carrier”, and “bandwidth part (BWP)” are used interchangeably.

[0109] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0110] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, it can also be called device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, language such as "uplink" and "downlink" can also be replaced by language corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0111] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0112] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0113] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0114] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" may be used interchangeably, and terms such as "physical uplink shared channel (PUSCH)" and "UL data" may be used interchangeably.

[0115] In some embodiments, "obtain", "get", "obtain", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from a protocol, obtaining by self-processing, autonomous implementation, etc.

[0116] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0117] In some embodiments, "predetermined" and "preset" can be interpreted as pre-specified in a protocol, etc., or can be interpreted as a pre-set action performed by a device, etc.

[0118] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0119] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0120] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0121] FIG1A is a schematic diagram of a method for determining resources according to an embodiment of the present disclosure. As shown in FIG1A , a communication system 100 includes a terminal 101 and a terminal 102 .

[0122] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in 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, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto. It is understandable that 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 skilled in the art will know that with the evolution of the system architecture,

[0123] With the emergence of new business scenarios, the technical solutions proposed in the embodiments of the present disclosure are also applicable to similar technical problems. The following embodiments of the present disclosure can be applied to the communication system 100 shown in Figure 1A, or part of the subject, but are not limited thereto. The subjects shown in Figure 1A are examples. The communication system may include all or part of the subjects in Figure 1A, or may include other subjects other than Figure 1A. The number and form of each subject are arbitrary. The connection relationship between the subjects is an example. The subjects may be connected or disconnected. The connection may be in any manner, which may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.

[0124] The embodiments of the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G New Radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.17 (WiMAX (registered trademark)), IEEE 802.18 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (WiMAX (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (WiMAX (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark)), 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 (V2X) systems, systems utilizing other resource determination methods, and next-generation systems based on and extending these systems. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0125] The disclosed embodiments can be applied to the continuous transmission of the sidelink positioning reference signal (SL PRS). In R18SL positioning, for a dedicated resource pool, multiple UEs are supported to perform comb multiplexing within one candidate opportunity. At the same time, multiple candidate opportunities are supported within one slot, and different UEs can also use comb offsets within different candidate opportunities for TDM transmission.

[0126] Figure 1B is a schematic diagram illustrating time division multiplexing of comb offsets within different candidate opportunities by different UEs within a time slot according to an embodiment of the present disclosure. As shown in Figure 1B , a time slot includes two candidate opportunities for transmitting SL RPS, namely SL-PRS#0 and SL-PRS#1. Each candidate opportunity corresponds to two available comb offsets for SL PRS transmission, namely Comb Offset #0 and Comb Offset #1. Comb Offset #0 and Comb Offset #1 can be multiplexed by different UEs to transmit SL PRS.

[0127] In some embodiments, the sequence carried by the SL PRS can be generated based on the sequence number of the SL RPS, where the sequence number can be obtained in the following manner: the sending UE configures the sequence number to the receiving UE through the LTE Positioning Protocol (LPP) or the Sidelink Positioning Protocol (SLPP), and the sending UE generates the sequence of the SL PRS based on the sequence number; or, if the sending UE does not configure the sequence number to the receiving UE, the sequence is generated based on the lower 12 bits of the cyclic redundancy check code (CRC) of the physical sidelink control channel (PSCCH).

[0128] The disclosed embodiments can be applied in NR SL-U, and the UE can perform multi-consecutive time slot (MCSt) transmission through resource selection. At the same time, by making the gap between two adjacent slots less than or equal to 16μs, other UEs cannot successfully access the channel through Listen Before Talk (LBT), so that the current UE's transmission can achieve the effect of continuous transmission, and the channel obtained after successful channel access is continuously occupied.

[0129] Figure 1C is a schematic diagram illustrating transmission of multiple consecutive time slots according to an embodiment of the present disclosure. As shown in Figure 1C, when a UE transmits multiple consecutive time slots, it needs to initiate a Channel Occupancy Time (COT), which includes four consecutive time slots. Each small rectangle in the figure represents a time slot, and the UE can send SL PRS signals in these four consecutive time slots.

[0130] Figure 1D is a schematic diagram illustrating a UE transmitting a channel occupancy signal on an empty physical direct connection feedback channel according to an embodiment of the present disclosure. As shown in Figure 1D , for an initiated COT, which includes four consecutive time slots, RAN1 also needs to transmit some corresponding channels or signals for the timings corresponding to the physical direct connection feedback channels relatively early in the COT to ensure channel occupancy. As shown in the figure, UE1 and UE2 each transmit channel occupancy signals on the physical direct connection feedback channels relatively early in different time slots.

[0131] Figure 1E is a schematic diagram illustrating a case where the first candidate opportunity within a time slot is not occupied by a UE, resulting in channel loss according to an embodiment of the present disclosure. As shown in Figure 1E, no other UE transmits an SL PRS at the first candidate opportunity within the slot, causing the UE to successfully access the channel before the PSCCH is transmitted. However, there is a gap between the PSCCH transmission time and the SL PRS transmission time, resulting in channel loss.

[0132] In the related technology, if no other UE sends SL PRS at the early candidate time in the time slot, even if the UE successfully accesses the channel before the PSCCH is sent, there is a gap between the PSCCH sending time and the SL PRS sending time. When the gap is greater than the duration threshold, other UEs successfully access the channel through LBT (Listen Before Talk), resulting in the loss of COT.

[0133] FIG2 is one of the interactive diagrams of a resource determination method according to an embodiment of the present disclosure. As shown in FIG2 , an embodiment of the present disclosure relates to a resource determination method for a communication system 100, the method comprising:

[0134] Step S2101: Terminal 101 determines a first candidate resource.

[0135] In some embodiments, terminal 101 sends an SL PRS to terminal 102 via the first candidate resource. The SL PRS carries, for example, a dedicated sequence configured by terminal 101 for terminal 102. Terminal 102 may be a terminal different from terminal 101, for example, a terminal in direct communication with terminal 101.

[0136] In some embodiments, the terminal 101 determines a candidate resource for sending a second SL PRS in the current time slot as a first candidate resource. Specifically, the terminal may determine the first candidate resource according to the resource pool configuration for sending the second SL PRS, wherein the second SL PRS may carry a dedicated sequence configured by the first terminal to the second terminal, that is, the first terminal may continuously send the second SL PRS to the second terminal.

[0137] In some embodiments, the first candidate resources include at least one candidate opportunity in the current time slot and a comb offset corresponding to the candidate opportunity.

[0138] In some embodiments, the second SL PRS carries a dedicated sequence configured by the first terminal to the second terminal. In some embodiments, the dedicated sequence can be configured by the first terminal through sidelink high layer signaling.

[0139] In some embodiments, the second SL PRS is used for terminal 101 to perform positioning.

[0140] Step S2102: Terminal 101 determines a second candidate resource.

[0141] In some embodiments, terminal 101 sends an SL PRS to terminal 102 through the second candidate resource. The SL PRS may be, for example, a common SL PRS sequence configured through a resource pool, which is used by terminal 101 to occupy a channel.

[0142] In some embodiments, the terminal 101 determines that there are multiple candidate resources in the resource pool of the current time slot, that is, there is a first candidate resource and other candidate resources other than the first candidate resource, wherein the first candidate resource is one or more candidate opportunities in the current time slot and a comb offset corresponding to one or more candidate opportunities.

[0143] In some embodiments, when the terminal 101 is not configured to continuously send the second SL PRS, it determines a candidate opportunity before the candidate opportunity corresponding to the second SL PRS in the current time slot, and determines a candidate resource from the candidate opportunity before the candidate opportunity corresponding to the second SL PRS as the second candidate resource.

[0144] In some embodiments, when the terminal 101 is configured to continuously send the second SL PRS, it determines a candidate timing other than the candidate timing corresponding to the second SL RPS in the current time slot, and determines a candidate resource from the candidate timing other than the candidate timing corresponding to the second SL PRS as the second candidate resource.

[0145] In some embodiments, the second candidate resource includes a first candidate opportunity of the resource pool configuration and a first comb offset of the first candidate opportunity.

[0146] In some embodiments, the first comb offset may adopt the first comb offset in the first candidate opportunity by default, or may be determined by resource pool configuration.

[0147] In some embodiments, the resource pool includes a set of time domain resources and frequency domain resources determined by terminal 101.

[0148] In some embodiments, if the priority of the second SL PRS is less than or equal to the first threshold or the terminal 101 configures the first parameter to the terminal 102, the common sequence of the first SL PRS and the second candidate resource corresponding to the first SL PRS are not selected to send the dedicated sequence corresponding to the first parameter.

[0149] For example: when terminal 101 is not configured to continuously send the second SL PRS, there are 3 candidate opportunities in the current time slot, among which the candidate opportunity corresponding to the second SL PRS is the second candidate opportunity in the current time slot, and the first candidate opportunity in the current time slot is not occupied by other terminals. At this time, the first candidate opportunity configured in the resource pool and the second comb offset of the first candidate opportunity are used as candidate resources for sending the first SL PRS, that is, the second candidate resource.

[0150] For example: when terminal 101 is configured to continuously send the second SL PRS, there are 3 candidate opportunities in the current time slot, among which the candidate opportunity corresponding to the second SL PRS is the second candidate opportunity in the current time slot, and the first candidate opportunity and the third candidate opportunity in the current time slot are not occupied by other terminals. At this time, the first comb offset of the first candidate opportunity configured in the resource pool and the first comb offset of the third candidate opportunity are used as candidate resources for sending the first SL PRS, that is, the second candidate resource.

[0151] Step S2103: Terminal 101 generates a first SL PRS.

[0152] In some embodiments, the sequence carried by the first SL PRS is generated according to the first parameter, wherein the first parameter is It is the sequence number of the first SL PRS.

[0153] In some embodiments, the first parameter is determined by any one of the following methods: pre-configuration of the resource pool; a preset CRC; or determination based on a preset bit of a first CRC, where the first CRC is a CRC corresponding to a preset PSCCH payload.

[0154] Optionally, the preset CRC may be a fixed 12-bit CRC; the first CRC may be a fixed PSCCH payload, for example, a PSCCH payload of all 0s, and the preset bits of the first CRC may be the lowest 12 bits. L=12, p i It is the i-1th bit among the 12 bits, which is 0 or 1; if it is fixed, it is a sequence of 12 zeros.

[0155] In some embodiments, the first SL PRS is a common SL PRS sequence configured through a resource pool, and is used by the terminal 101 to occupy a channel.

[0156] Step S2104: Terminal 101 sends a first SL PRS and a second SL PRS.

[0157] In some embodiments, in order to ensure that the interval between the first SL PRS and the last transmitted signal / channel does not exceed a duration threshold, or the interval between the second SL PRS and the last transmitted signal / channel does not exceed a duration threshold, the terminal 101 may transmit a cyclic prefix extension (CPE) corresponding to the first SL PRS between the first SL PRS and the last transmitted signal / channel, or transmit a CPE corresponding to the second SL RPS between the second SL PRS and the last transmitted signal / channel, for example:

[0158] When the interval between the first sending moment and the sending moment corresponding to the second candidate resource is greater than the duration threshold, the CPE corresponding to the first SL PRS is sent between the first moment and the sending moment corresponding to the second candidate resource; wherein, the first signal or the first channel is sent at the first sending moment, the first signal is the first SL PRS or the second SL PRS, and the first channel is PSCCH.

[0159] When the interval between the second sending moment and the sending moment corresponding to the first candidate resource is greater than the duration threshold, the CPE corresponding to the second SL PRS is sent between the second moment and the sending moment corresponding to the first candidate resource; wherein, the second signal or the first channel is sent at the second sending moment, the second signal is the first SL PRS, and the first channel is PSCCH.

[0160] In some embodiments, the duration threshold may be 16 microseconds, and the present disclosure does not limit the specific value of the duration threshold.

[0161] In some embodiments, the terminal 101 sends the first SL PRS according to the first transmit power, where the first transmit power is determined according to any one of the following methods:

[0162] Determined according to the first number and the power obtained in the power control process of the first SL PRS, the first number is the number of second comb offsets reserved by the first terminal in the first candidate opportunity, and the second comb offset is the comb offset of the resource corresponding to the first SL PRS; or

[0163] It is determined according to the size of the first comb offset and the power obtained in the power control process of the first SL PRS.

[0164] For example: there are two comb offsets in the first candidate opportunity, namely comb offset #1 and comb offset #2, wherein comb offset #1 is reserved by terminal 102 as the comb offset of the resources corresponding to the first SL PRS, and comb offset #2 is reserved by terminal 103 as the comb offset of the resources corresponding to the first SL PRS. Therefore, in the first candidate opportunity, each time the reserved comb offset is detected as the comb offset of the candidate resources corresponding to the first SL PRS, the first SL PRS obtains a power reduction of a preset decibel during the power control process. For example, each time the reserved comb offset is detected as the comb offset of the resources corresponding to the first SL PRS, the power obtained by the first SL PRS during the power control process is reduced by 3db. It should be noted that the comb offsets reserved by different terminals in the first candidate opportunity can be the same comb offset or different comb offsets. The present disclosure only limits the reserved comb offsets to the same candidate opportunity, and does not limit whether the reserved comb offsets are the same.

[0165] For example, if the size of the comb offset #1 corresponding to the first SL PRS is N, and the power obtained by the first SL PRS during the power control process is P, then the number of comb offsets reserved in the first candidate opportunity as the comb offsets of the candidate resources corresponding to the first SL PRS is not detected, and the power obtained by the first SL PRS during the power control process is directly reduced. For example, the following formula can be used for power reduction: P seq =P-10log 10 N.

[0166] Among them, P seq is the transmission power of the common sequence corresponding to the first SL PRS.

[0167] In some embodiments, terminal 101 sends the second SL PRS to terminal 102 through the first candidate resources and sends the first SL PRS through the second candidate resources.

[0168] The resource determination method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2104. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, and step S2104 may be implemented as an independent embodiment.

[0169] In some embodiments, steps 2101 to 2103 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0170] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0171] FIG3 is a flow chart of a resource determination method according to an embodiment of the present disclosure. As shown in FIG3 , the embodiment of the present disclosure relates to a resource determination method, which includes:

[0172] Step S3101: Terminal 101 determines whether other candidate resources exist in the current time slot except the first candidate resource.

[0173] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0174] In some embodiments, a candidate resource for transmitting the second SL PRS in the current time slot is determined as a first candidate resource, wherein the first candidate resource includes at least one candidate opportunity in the current time slot and a comb offset corresponding to the candidate opportunity.

[0175] In some embodiments, the first candidate resource is a candidate resource for sending a second SL PRS after sending a PSCCH signal in the current time slot, and the second SL PRS carries a sequence number configured by the first terminal to the second terminal through the sidelink high-layer signaling.

[0176] In step S3102, the terminal 101 determines a second candidate resource from other candidate resources.

[0177] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0178] In some embodiments, when the terminal 101 is not configured to continuously send the second SL PRS, it determines a candidate opportunity before the candidate opportunity corresponding to the second SL PRS sent in the current time slot, and determines a candidate resource from the candidate opportunity before the candidate opportunity corresponding to the second SL PRS as the second candidate resource;

[0179] In some embodiments, when the terminal 101 is configured to continuously send the second SL PRS, it determines a candidate opportunity other than the candidate opportunity corresponding to sending the second SL RPS in the current time slot, and determines a candidate resource from the candidate opportunity other than the candidate opportunity corresponding to the second SL PRS as the second candidate resource;

[0180] In some embodiments, the second candidate resource includes a first candidate opportunity of the resource pool configuration and a first comb offset of the first candidate opportunity.

[0181] Optionally, the first comb offset may adopt the first comb offset in the first candidate opportunity by default; or the first comb offset may not be adopted by default, but may be determined by resource pool configuration.

[0182] In some embodiments, if the priority of the second SL PRS is less than or equal to the first threshold or the terminal 101 configures the first parameter to the terminal 102, the common sequence of the first SL PRS and the second candidate resource corresponding to the first SL PRS are not selected to send the dedicated sequence carried by the second SL PRS.

[0183] Step S3103 : The terminal 101 sends a first SL PRS in the second candidate resource. The first SL PRS is a common sequence configured through the resource pool.

[0184] The optional implementation of step S3103 can refer to step S2103 in FIG. 2 , the optional implementation of step 2104 , and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

[0185] In some embodiments, a sequence carried by the first SL PRS is generated according to a first parameter, wherein the first parameter is determined by any one of the following methods: pre-configuration of the resource pool; a preset CRC; determination according to a preset bit of the first CRC, the first CRC being the CRC corresponding to the preset PSCCH payload.

[0186] Optionally, the preset CRC may be a fixed 12-bit CRC; the first CRC may be a fixed PSCCH payload, for example, a PSCCH payload of all 0s, and the preset bits of the first CRC may be the lowest 12 bits.

[0187] In some embodiments, the first SL PRS is a common sequence configured through a resource pool and is used by the terminal 101 to occupy a channel.

[0188] In some embodiments, the interval between the first sending moment and the sending moment corresponding to the second candidate resource is greater than a duration threshold, and the CPE corresponding to the first SL PRS is sent between the first moment and the sending moment corresponding to the second candidate resource; wherein, the first signal or the first channel is sent at the first sending moment, the first signal is the first SL PRS or the second SL PRS, and the first channel is PSCCH.

[0189] In some embodiments, the interval between the second sending moment and the sending moment corresponding to the first candidate resource is greater than a duration threshold, and the CPE corresponding to the second SL PRS is sent between the second moment and the sending moment corresponding to the first candidate resource; wherein, the second signal or the first channel is sent at the second sending moment, the second signal is the first SL PRS, and the first channel is PSCCH.

[0190] For example, the duration threshold may be 16 microseconds, and the present disclosure does not limit the specific value of the duration threshold.

[0191] In some embodiments, the terminal 101 sends a first SL PRS according to a first transmission power, wherein the first transmission power is determined according to any one of the following methods: determined according to a first quantity and a power obtained during the power control process of the first SL PRS, the first quantity being the number of second comb offsets reserved by the first terminal in the first candidate opportunity, and the second comb offset being a comb offset serving as a resource corresponding to the first SL PRS; determined according to the size of the first comb offset and the power obtained during the power control process of the first SL PRS.

[0192] In some embodiments, terminal 101 sends the second SL PRS to terminal 102 through the first candidate resources and sends the first SL PRS through the second candidate resources.

[0193] FIG4 is a second interactive diagram of a resource determination method according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure relates to a resource determination method, which includes:

[0194] Step S4101: Terminal 101 determines a first candidate resource for sending a second SL PRS.

[0195] The optional implementation of step S4101 can refer to the optional implementation of step S2101 and step S3101 in Figure 2, and other related parts in the embodiments involved in Figures 2 and 3, which will not be repeated here.

[0196] In some embodiments, the terminal 101 generates a second SL PRS, where the second SL PRS carries a sequence configured by the first terminal to the second terminal through sidelink higher layer signaling.

[0197] In some embodiments, the terminal 101 determines a candidate opportunity in the current time slot and a comb offset corresponding to the candidate opportunity as a candidate resource corresponding to the second SL PRS.

[0198] Optionally, the current time slot supports multiple candidate opportunities, and different terminals can use different comb offsets within the candidate opportunities for comb multiplexing. It can be understood that different terminals can use different comb offsets within the candidate opportunities to send the second SL PRS.

[0199] In some embodiments, the second SL PRS is used for the positioning function of the terminal.

[0200] Step S4102: Terminal 101 determines a second candidate resource.

[0201] The optional implementation of step S4102 can refer to step S2102 of FIG. 2 , the optional implementation of step S3102 , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 , which will not be described in detail here.

[0202] In some embodiments, when the terminal 101 is not configured to continuously send the second SL PRS, a candidate opportunity before the candidate opportunity corresponding to the second SL PRS is determined in the current time slot, and a candidate resource is determined from the candidate opportunities before the candidate opportunity corresponding to the second SL PRS as the second candidate resource;

[0203] In some embodiments, the terminal 101 is configured to continuously send the second SL PRS, determines a candidate timing other than the candidate timing corresponding to sending the second SL RPS in the current time slot, and determines a candidate resource from the candidate timing other than the candidate timing corresponding to the second SL PRS as the second candidate resource;

[0204] In some embodiments, the second candidate resource includes a first candidate opportunity of the resource pool configuration and a first comb offset of the first candidate opportunity.

[0205] Optionally, the first comb offset may adopt the first comb offset in the first candidate opportunity by default; or the first comb offset may not be adopted by default, but may be determined by resource pool configuration.

[0206] Step S4103: Terminal 101 generates a first SL PRS.

[0207] The optional implementation of step S4103 can refer to the optional implementation of step S2103 and step S3103 in Figure 2, and other related parts in the embodiments involved in Figures 2 and 3, which will not be repeated here.

[0208] In some embodiments, a sequence carried by the first SL PRS is generated according to a first parameter, wherein the first parameter is determined by any one of the following methods: pre-configuration of the resource pool; a preset CRC; determination according to a preset bit of the first CRC, the first CRC being the CRC corresponding to the preset PSCCH payload.

[0209] Optionally, the preset CRC may be a fixed 12-bit CRC; the first CRC may be a fixed PSCCH payload, for example, a PSCCH payload of all 0s, and the preset bits of the first CRC may be the lowest 12 bits.

[0210] In some embodiments, the first SL PRS is a common sequence configured through a resource pool and is used by the terminal 101 to occupy a channel.

[0211] Step S4104: Terminal 101 determines the CPE corresponding to the first SL PRS.

[0212] The optional implementation of step S4104 can refer to step S2104 in FIG. 2 , the optional implementation of step S3103 , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 , which will not be described in detail here.

[0213] In some embodiments, the interval between the first sending moment and the sending moment corresponding to the second candidate resource is greater than a duration threshold, and the CPE corresponding to the first SL PRS is sent between the first moment and the sending moment corresponding to the second candidate resource; wherein, the first signal or the first channel is sent at the first sending moment, the first signal is the first SL PRS or the second SL PRS, and the first channel is PSCCH.

[0214] For example, the duration threshold may be 16 microseconds, and the present disclosure does not limit the specific value of the duration threshold.

[0215] Step S4105: Terminal 101 determines the CPE corresponding to the second SL PRS.

[0216] The optional implementation of step S4105 can refer to step S2104 of FIG. 2 , the optional implementation of step S3103 , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 , which will not be described in detail here.

[0217] In some embodiments, the interval between the second sending moment and the sending moment corresponding to the first candidate resource is greater than a duration threshold, and the CPE corresponding to the second SL PRS is sent between the second moment and the sending moment corresponding to the first candidate resource; wherein, the second signal or the first channel is sent at the second sending moment, the second signal is the first SL PRS, and the first channel is PSCCH.

[0218] For example, the duration threshold may be 16 microseconds, and the present disclosure does not limit the specific value of the duration threshold.

[0219] Step S4106: Terminal 101 determines the transmit power of the first SL PRS.

[0220] The optional implementation of step S4106 can refer to step S2104 of FIG. 2 , the optional implementation of step S3103 , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 , which will not be described in detail here.

[0221] In some embodiments, the terminal 101 sends a first SL PRS according to a first transmission power, wherein the first transmission power is determined according to any one of the following methods: determined according to a first quantity and a power obtained during the power control process of the first SL PRS, the first quantity being the number of second comb offsets reserved by the first terminal in the first candidate opportunity, and the second comb offset being a comb offset serving as a resource corresponding to the first SL PRS; determined according to the size of the first comb offset and the power obtained during the power control process of the first SL PRS.

[0222] Step S4107: Terminal 101 sends a first SL PRS and a second SL PRS.

[0223] The optional implementation of step S4107 can refer to step S2104 of FIG. 2 , the optional implementation of step S3103 , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 , which will not be described in detail here.

[0224] In some embodiments, terminal 101 sends the second SL PRS to terminal 102 through the first candidate resources and sends the first SL PRS through the second candidate resources.

[0225] In step S4108 , the terminal 102 receives the first SL PRS and the second SL PRS.

[0226] In some embodiments, the terminal 102 receives the second SL PRS sent by the terminal 101 through the first candidate resources and the first SL PRS sent through the second candidate resources.

[0227] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by the terminal 101 in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0228] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0229] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0230] Figure 5A is a schematic diagram of transmitting a common positioning reference signal sequence using comb offsets at candidate opportunities, as proposed in an embodiment of the present disclosure. As shown, the current time slot includes two candidate opportunities, candidate opportunity #1 and candidate opportunity #2. Candidate opportunity #1 is used to transmit the common positioning reference signal sequence, i.e., the first SL PRS described above in the present disclosure. As can be seen from the figure, candidate opportunity #1 includes two comb offsets, of which the shaded comb offset is used to transmit the first SL PRS.

[0231] Figure 5B is a schematic diagram of transmitting a common positioning reference signal sequence over the bandwidth corresponding to a resource pool according to an embodiment of the present disclosure. As shown in the figure, the bandwidth corresponding to the resource pool includes several resource blocks (RBs). The small grid marked with shadows to the right of the arrow in the figure corresponds to the comb-shaped resources for transmitting the common positioning reference signal sequence in Figure 5A, where the common positioning reference signal sequence is also the first SL PRS described above in the present disclosure. It can be understood that Figure 5B shows the transmission of the first SL PRS over the bandwidth corresponding to the entire resource pool.

[0232] Figure 5C is a schematic diagram of sending a common sequence of positioning reference signals on the first PRB set proposed in an embodiment of the present disclosure. As shown in the figure, the bandwidth corresponding to the resource pool includes a number of resource blocks (RBs). Two resource blocks are schematically selected on the left side of the arrow in the figure as the first PRB set, and the small grid marked with shadows on the right side of the arrow in the figure corresponds to the comb-shaped resources for sending the common sequence of positioning reference signals in Figure 5A, wherein the common sequence of positioning reference signals is the first SL PRS mentioned above in the present disclosure. It should be noted that the first SL PRS sent on the first PRB set has a one-to-one corresponding bit to the first SL PRS sent on the bandwidth corresponding to the resource pool.

[0233] Figure 5D is a schematic diagram of sending a common sequence of positioning reference signals on the first RE set proposed in an embodiment of the present disclosure. As shown in the figure, the bandwidth corresponding to the resource pool includes a number of resource blocks (RBs), and two resource blocks are schematically selected on the left side of the arrow in the figure as the first PRB set. The small grids marked with shadows on the right side of the arrow in the figure are a number of resource elements (REs) selected from the first PRB set as the first RE set. The first RE set includes a comb offset for sending a common sequence of positioning reference signals, wherein the common sequence of positioning reference signals is the first SL PRS mentioned above in the present disclosure. It should be noted that the first SL PRS sent on the first RE set has a one-to-one corresponding bit to the first SL PRS sent on the bandwidth corresponding to the resource pool.

[0234] FIG6A is a schematic diagram of the structure of the terminal 101 proposed in an embodiment of the present disclosure. As shown in FIG6A , the terminal 101 may include: a processing module 6101 and a sending module 6102 .

[0235] In some embodiments, the processing module is configured to determine whether other candidate resources other than the first candidate resource exist in the current time slot; and determine a second candidate resource from the other candidate resources;

[0236] In some embodiments, the sending module is configured to send a first sidelink positioning reference signal SL PRS on the second candidate resource, where the first SL PRS is a common sequence configured through a resource pool;

[0237] Among them, the first candidate resource is a candidate resource for sending the second SL PRS after sending the physical direct control channel PSCCH signal in the current time slot, and the second SL PRS carries the sequence configured by the first terminal to the second terminal through sidelink high-layer signaling.

[0238] Optionally, the processing module is used to execute the communication steps such as sending and / or receiving performed by the terminal 101 in any of the above methods, such as steps S2101 to S2103, which are not repeated here.

[0239] Optionally, the sending module is used to execute other steps performed by the terminal 101 in any of the above methods, such as step S2104, which will not be repeated here.

[0240] FIG6B is a schematic diagram of the structure of the terminal 102 proposed in an embodiment of the present disclosure. As shown in FIG6B , the terminal 102 may include: a receiving module 6201 .

[0241] In some embodiments, the receiving module is configured to receive the first SL PRS and the second SL PRS sent by the terminal 101 .

[0242] Optionally, the processing module is used to execute the communication steps such as sending and / or receiving performed by the terminal 102 in any of the above methods, such as step S4108, which will not be repeated here.

[0243] Figure 7A is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), an IoT device, a first device, a chip, a chip system, or a processor that supports a network device implementing any of the above methods, or a chip, a chip system, or a processor that supports an IoT device implementing any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0244] As shown in Figure 7A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.

[0245] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2104, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, step S2101, step S2102, step S2103, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0246] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memory 8102 and may be configured to receive data from the memory 8102 or other devices, or to send data to the memory 8102 or other devices. For example, the interface circuits 8104 may read data stored in the memory 8102 and send the data to the processor 8101.

[0247] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 7A . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0248] 7B is a schematic diagram of the structure of the chip 8200 proposed in an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG7B , but the present disclosure is not limited thereto.

[0249] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0250] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.

[0251] In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., step S2104, but not limited thereto) in the above method, such as sending and / or receiving. For example, the interface circuit 8202 performing the communication steps (e.g., sending and / or receiving) in the above method means that the interface circuit 8202 performs data exchange between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps (e.g., step S2101, step S2102, and step S2103, but not limited thereto).

[0252] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0253] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0254] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A resource determination method, characterized in that: Applied to a first terminal, the method includes: Determine that other candidate resources other than the first candidate resource exist in the current time slot; determine a second candidate resource from the other candidate resources; Sending a first sidelink positioning reference signal SL PRS to the second terminal on the second candidate resource, where the first SL PRS is a common sequence configured by the resource pool; Among them, the first candidate resource is a candidate resource for sending the second SL PRS after sending the physical direct control channel PSCCH signal in the current time slot, and the second SL PRS carries the sequence configured by the first terminal to the second terminal through sidelink high-layer signaling.

2. The method according to claim 1, characterized in that The second candidate resource is any one of the following: A candidate resource that is before the first candidate resource among the other candidate resources; or The second candidate resource is the other candidate resource.

3. The method according to claim 1 or 2, characterized in that: The second candidate resource includes at least one of the following: The first candidate time for resource pool configuration; and A first comb offset of the first candidate timing configured by the resource pool.

4. The method according to any one of claims 1 to 3, characterized in that: The sending of the first SL PRS includes: Sending the first SL PRS on the bandwidth corresponding to the resource pool; or Sending the first SL PRS in a first frequency domain resource of the bandwidth; The first frequency domain resource is: A first PRB set on the bandwidth, a first SL PRS sent on the first PRB set and a first SL PRS sent on the bandwidth have a one-to-one corresponding bit position; or The first RE set on the bandwidth, the first SL PRS sent on the first RE set and the first SL PRS sent on the bandwidth have a one-to-one corresponding bit.

5. The method according to any one of claims 1 to 4, characterized in that: The first SL PRS is generated according to the first SL PRS sequence number; The first SL PRS sequence number is determined by any of the following methods: Resource pools are pre-configured; Determined according to a preset cyclic redundancy check code CRC; Determined according to a preset bit of the first CRC, the first CRC is a CRC corresponding to a preset PSCCH payload.

6. The method according to claim 5, characterized in that The resource pool includes a set of time domain resources and frequency domain resources determined by the first terminal.

7. The method according to any one of claims 1 to 5, characterized in that: Also includes: The interval between the first sending time and the sending time corresponding to the second candidate resource is greater than the duration threshold, and the cyclic prefix extension CPE corresponding to the first SL PRS is sent between the first sending time and the sending time corresponding to the second candidate resource; The first sending time is the time of sending the first signal or the first channel, the first signal is the first SL PRS or the second SL PRS, and the first channel is the PSCCH.

8. The method according to claim 7, characterized in that The CPE corresponding to the first SL PRS includes: the CPE sent before the sending time corresponding to the second candidate resource in the current time slot.

9. The method according to any one of claims 1 to 5, characterized in that: Also includes: The interval between the second sending time and the sending time corresponding to the first candidate resource is greater than the duration threshold, and the CPE corresponding to the second SL PRS is sent between the second sending time and the sending time corresponding to the first candidate resource; The second sending time is the time of sending the second signal or the first channel, the second signal is the first SL PRS, and the first channel is the PSCCH.

10. The method according to claim 9, characterized in that The CPE corresponding to the second SL PRS includes: the CPE sent before the sending time corresponding to the first candidate resource in the current time slot.

11. The method according to claim 3, characterized in that The sending the first SL PRS includes: sending the first SL PRS according to a first transmission power; The first transmission power is determined according to any one of the following methods: Determined according to a first number and a power obtained in a power control process of the first SL PRS, the first number being the number of second comb offsets reserved by the first terminal in the first candidate opportunity, and the second comb offset being a comb offset of a candidate resource corresponding to the first SL PRS; The method is determined according to the size of the first comb offset and the power obtained in the power control process of the first SL PRS.

12. A terminal, characterized in that: The terminal comprises: A processing module, configured to determine whether other candidate resources other than the first candidate resource exist in the current time slot; and determine a second candidate resource from the other candidate resources; A sending module: sending a first sidelink positioning reference signal SL PRS on the second candidate resource, where the first SL PRS is a common sequence configured by a resource pool; Among them, the first candidate resource is a candidate resource for sending the second SL PRS after sending the physical direct control channel PSCCH signal in the current time slot, and the second SL PRS carries the sequence configured by the first terminal to the second terminal through sidelink high-layer signaling.

13. A terminal, characterized in that: include: one or more processors; The terminal is used to execute the resource determination method according to any one of claims 1 to 11.

14. A communication system, characterized in that: Comprising a terminal; wherein the terminal is configured to implement the resource determination method according to any one of claims 1 to 11.

15. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the resource determination method according to any one of claims 1 to 11.

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