Channel busy ratio measurement method, terminal, communication device, and storage medium

Abstract

The present disclosure relates to the technical field of communications, and in particular relates to a channel busy ratio measurement method, a terminal, a communication device, and a storage medium. The channel busy ratio measurement method comprises: a terminal determining at least one first resource group in a first resource pool, the first resource pool comprising a resource for transmitting a sidelink positioning reference signal (SL-PRS), and the first resource group comprising at least one resource in the first resource pool; and the terminal performing a first measurement on the at least one first resource group. Accordingly, the terminal can perform resource busy ratio measurement within a relatively smaller granularity range to determine the resource utilization in each first resource group, and thus an SL-PRS ID to be sent to a physical layer can be determined by using a resource group as a unit.

Description

Channel busy rate measurement method, terminal, communication equipment and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a channel busy rate measurement method, a terminal, a communication device, and a storage medium. Background Art

[0002] When performing side link (SL) positioning, the upper layer can select the SL-PRS resource identifier (SL-PRS ID) to be notified to the physical layer from the side link reference signal (SL-PRS) resource pool, but it is necessary to solve how the upper layer determines the SL-PRS ID to be sent to the physical layer.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure propose a channel busy rate measurement method, a terminal, a communication device, and a storage medium to solve the technical problem in related technologies of how a high layer determines an SL-PRS ID to be sent to a physical layer.

[0005] According to a first aspect of an embodiment of the present disclosure, a channel busy rate measurement method is proposed, the method comprising: a terminal determining at least one first resource group in a first resource pool; wherein, the first resource pool includes resources for transmitting a side link positioning reference signal SL-PRS, and the first resource group includes at least one resource in the first resource pool; the terminal performs a first measurement on the at least one first resource group.

[0006] According to the second aspect of an embodiment of the present disclosure, a channel busy rate measurement device is proposed, the device comprising: a processing module, determining at least one first resource group in a first resource pool; wherein, the first resource pool includes resources for transmitting a side link positioning reference signal SL-PRS, and the first resource group includes at least one resource in the first resource pool; a transceiver module, configured to perform a first measurement on the at least one first resource group.

[0007] According to a third aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; a memory coupled to the processor, the memory storing executable instructions, wherein when the executable instructions are executed by the processor, the terminal executes the channel busy rate measurement method described in the first aspect above.

[0008] According to the fourth aspect of an embodiment of the present disclosure, a communication device is proposed, comprising: one or more processors; a memory coupled to the processor, the memory storing executable instructions, wherein when the executable instructions are executed by the processor, the processor is used to call instructions so that the communication device executes the channel busy rate measurement method described in the first aspect above.

[0009] According to a fifth aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a plurality of terminals, wherein the terminals are configured to implement the channel busy rate measurement method described in the first aspect.

[0010] According to a sixth aspect of an embodiment of the present disclosure, a storage medium is proposed, wherein the storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes the channel busy rate measurement method described in the first aspect above.

[0011] According to an embodiment of the present disclosure, the first resource pool is grouped, a first resource group is determined from the grouped resource groups, and a first measurement is performed on the resources in the first resource group. As can be seen, compared with performing a first measurement on the resources in the resource pool, performing a first measurement on the resources in the resource group allows for measurement of the channel busy rate at a relatively smaller granularity to determine resource utilization in each first resource group, and thus allows for determining the SL-PRS ID sent to the physical layer on a per-resource group basis. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0013] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0014] FIG2 is an interactive schematic diagram illustrating a method for measuring a channel busy rate according to an embodiment of the present disclosure.

[0015] FIG3 is a schematic flowchart showing a method for measuring a channel busy rate according to an embodiment of the present disclosure.

[0016] FIG4 is a schematic block diagram showing the device structure of a terminal according to an embodiment of the present disclosure.

[0017] FIG5 is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure.

[0018] FIG6 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0019] Embodiments of the present disclosure provide a channel busy rate measurement method, a terminal, a communication device, and a storage medium.

[0020] In a first aspect, an embodiment of the present disclosure proposes a channel busy rate measurement method, which is executed by a terminal, and the method includes: the terminal determines at least one first resource group in a first resource pool; wherein the first resource pool includes resources for transmitting a side link positioning reference signal SL-PRS, and the first resource group includes at least one resource in the first resource pool; the terminal performs a first measurement on the at least one first resource group.

[0021] In the above embodiment, the first resource pool is grouped, a first resource group is determined from the grouped resource groups, and the first measurement is performed on the resources in the first resource group. As can be seen, compared with performing the first measurement on the resources in the resource pool, performing the first measurement on the resources in the resource group allows for channel busy rate measurement at a relatively smaller granularity to determine resource utilization in each first resource group. Furthermore, the SL-PRS ID sent to the physical layer can be determined on a per-resource group basis.

[0022] In conjunction with some embodiments of the first aspect, in some embodiments, the first resource pool is a dedicated resource pool for transmitting SL-PRS.

[0023] In combination with some embodiments of the first aspect, in some embodiments, the first measurement includes at least one of the following: a channel busy rate (CBR) measurement; or a channel occupancy rate (CR) measurement.

[0024] In combination with some embodiments of the first aspect, in some embodiments, a higher layer of the terminal determines at least one first resource group in the first resource pool.

[0025] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines at least one first resource group in the first resource pool according to configuration information of the first resource pool sent by a network device.

[0026] In combination with some embodiments of the first aspect, in some embodiments, the configuration information of the first resource group includes a resource identifier of the SL-PRS resource included in the first resource group.

[0027] In combination with some embodiments of the first aspect. In some embodiments, the terminal performs CBR measurement on the at least one first resource group, including: the terminal determines the number of first resources in the SL-PRS resources included in each first resource group; wherein the first resources are SL-PRS resources occupied by other terminals; the terminal determines the first CBR of each first resource group based on the ratio of the number of the first resources to the total amount of SL-PRS resources in the first resource group.

[0028] In combination with some embodiments of the first aspect. In some embodiments, the first resource group also includes a subchannel occupied by a physical side link control channel PSCCH; the terminal performs CBR measurement on at least one of the first resource groups, including: the terminal determines the number of first subchannels in the subchannels occupied by the PSCCH included in each first resource group; wherein the first subchannel is a subchannel occupied by the PSCCH of other terminals; the terminal determines the first CBR of each first resource group based on the ratio of the number of the first subchannels to the total number of subchannels occupied by the PSCCH in the first resource group.

[0029] In combination with some embodiments of the first aspect. In some embodiments, the first resource group also includes a subchannel occupied by a PSCCH, and the terminal performs a CBR measurement on at least one of the first resource groups, including: the terminal determines the number of first resources in the SL-PRS resources included in each of the first resource groups and the number of first subchannels in the subchannels occupied by the PSCCH included in each of the first resource groups; the terminal determines the first CBR of each of the first resource groups based on the ratio of the number of the first resources to the total amount of SL-PRS resources in the first resource group and the ratio of the number of the first subchannels to the total amount of subchannels occupied by the PSCCH in the first resource group.

[0030] In combination with some embodiments of the first aspect, in some embodiments, the first resource is an SL-PRS resource whose received signal strength exceeds a first threshold within a first time window; wherein the first time window is a CBR measurement window.

[0031] In combination with some embodiments of the first aspect, in some embodiments, the first subchannel is a subchannel occupied by a PUCCH whose received signal strength exceeds a second threshold within a first time window; wherein the first time window is a CBR measurement window.

[0032] In combination with some embodiments of the first aspect. In some embodiments, the method further includes: determining a second resource group from the at least one first resource group; wherein the second resource group is a first resource group whose corresponding first CBR is less than or equal to a CBR threshold; and indicating the resources in the second resource group to the physical layer of the terminal for transmitting an SL PRS.

[0033] In combination with some embodiments of the first aspect, in some embodiments, the method further comprises: if multiple second resource groups are determined, indicating resources in at least one of the multiple second resource groups to a physical layer of the terminal for transmitting an SL PRS.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, the CBR threshold is a CBR threshold corresponding to the first resource group.

[0035] In combination with some embodiments of the first aspect, in some embodiments, the CBR threshold is determined by one of the following methods: indicated by a higher layer of the terminal; or carried in the acquired configuration information or pre-configuration information of the first resource group.

[0036] In combination with some embodiments of the first aspect, in some embodiments, the CBR threshold includes a CBR threshold corresponding to each priority.

[0037] In combination with some embodiments of the first aspect. In some embodiments, the terminal performs CR measurement on at least one of the first resource groups, including: determining, by the terminal, the number of second resources in the SL-PRS resources included in each of the first resource groups; wherein the second resources are SL-PRS resources occupied by the terminal; and determining, by the terminal, a first CR for each of the first resource groups based on a ratio of the number of the second resources to the total amount of SL-PRS resources in the first resource group.

[0038] In combination with some embodiments of the first aspect. In some embodiments, the first resource group also includes subchannels occupied by PSCCH; the terminal performs CR measurement on at least one of the first resource groups, including: the terminal determines the number of second subchannels in the subchannels occupied by PSCCH included in each first resource group; wherein the second subchannel is a subchannel occupied by the PSCCH of the terminal; the terminal determines the first CR of each first resource group based on the ratio of the number of the second subchannels to the total number of subchannels occupied by PSCCH in the first resource group.

[0039] In combination with some embodiments of the first aspect. In some embodiments, the first resource group also includes a subchannel occupied by a PSCCH; the terminal performs CR measurement on at least one of the first resource groups, including: the terminal determines the number of second resources in the SL-PRS resources included in each of the first resource groups and the number of second subchannels in the subchannels occupied by the PSCCH included in each of the first resource groups; the terminal determines the first CR of each of the first resource groups based on the ratio of the number of the second subchannels to the total number of subchannels occupied by the PSCCH in the first resource group and the ratio of the number of the second subchannels to the total number of subchannels occupied by the PSCCH in the first resource group.

[0040] In combination with some embodiments of the first aspect. In some embodiments, the second resources include SL-PRS resources occupied by the terminal in a first sub-window of a second time window and SL-PRS resources authorized to the terminal in a second sub-window of the second time window; wherein the second time window is a CR measurement window, the first sub-window is a CR measurement window before the current moment in the CR measurement window, and the second sub-window is a CR measurement window starting from the current moment in the CR measurement window.

[0041] In combination with some embodiments of the first aspect. In some embodiments, the second subchannel includes a subchannel occupied by the PSCCH of the terminal in a first subwindow of a second time window and a subchannel occupied by the PSCCH authorized to the terminal in a second subwindow of the second time window; wherein the second time window is a CR measurement window, the first subwindow is a CR measurement window before the current moment in the CR measurement window, and the second subwindow is a CR measurement window starting from the current moment in the CR measurement window.

[0042] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: the terminal determining that a first CR of the at least one first resource group is greater than a CR threshold; and the terminal triggering resource reselection to determine a new first resource group.

[0043] With reference to some embodiments of the first aspect, in some embodiments, the CR threshold is a CR threshold corresponding to the first resource group.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the CR threshold is determined by at least one of the following: a priority of the SL-PRS to be transmitted; and a CBR interval in which the first CBR of the first resource group is located.

[0045] In the second aspect, a channel busy rate measurement device is proposed, which includes: a processing module, which determines at least one first resource group in a first resource pool; wherein, the first resource pool includes resources for transmitting a side link positioning reference signal SL-PRS, and the first resource group includes at least one resource in the first resource pool; a transceiver module, which is used to perform a first measurement on the at least one first resource group.

[0046] In the third aspect, a terminal is proposed, comprising: one or more processors; a memory coupled to the processor, the memory storing executable instructions, wherein when the executable instructions are executed by the processor, the terminal executes the channel busy rate measurement method described in the first aspect and the optional embodiment of the first aspect.

[0047] In a fourth aspect, an embodiment of the present disclosure proposes a communication device, which includes: one or more processors; a memory coupled to the processor, on which executable instructions are stored, wherein when the executable instructions are executed by the processor, the processor calls the executable instructions so that the communication device executes the channel busy rate measurement method described in the first aspect and the optional embodiment of the first aspect.

[0048] In a fifth aspect, an embodiment of the present disclosure proposes a communication system, which includes: multiple terminals; wherein the terminals are configured to execute the method described in the first aspect and the optional embodiment of the first aspect.

[0049] In a sixth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the first aspect and the optional embodiment of the first aspect.

[0050] In a seventh 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 first aspect and the optional embodiment of the first aspect.

[0051] In an eighth 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 first aspect and the optional embodiment of the first aspect.

[0052] It is understandable that the above-mentioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute 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.

[0053] The present disclosure provides a channel busy rate measurement method, terminal, communication device, and storage medium. In some embodiments, the terms "information sending method," "information receiving method," "information processing method," and "communication method" are interchangeable; the terms "terminal," "network device," "information processing device," and "communication device" are interchangeable; and the terms "information processing system" and "communication system" are interchangeable.

[0054] 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 embodiments 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 embodiments of other embodiments.

[0055] 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.

[0056] 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.

[0057] In the embodiments of the present disclosure, unless otherwise specified, 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.

[0058] For example, when using articles such as “a”, “an”, and “the” in English in translation, the noun following the article can be understood as a singular expression or a plural expression.

[0059] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0060] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0061] 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.

[0062] 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.

[0063] 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 restrictions on the position, order, priority, quantity or content of the description objects. For the statement of the description objects, please refer to the description in the context of the claims or embodiments, and no unnecessary restrictions should be constituted due to the use of prefixes.

[0064] For example, if the description object is "field," the ordinal number preceding "field" in "first field" and "second field" does not restrict the position or order of the "fields." "First" and "second" do not restrict whether the modified "fields" are in the same message, nor do they restrict the order of the "first field" and "second field." For another example, if the description object is "level," the ordinal number preceding "level" in "first level" and "second level" does not restrict the priority of the "levels." For another example, the number of description objects is not restricted by the ordinal number and can be one or more. For example, in the case of "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the description object is "device," "first device" and "second device" can be the same or different devices, and their types can be the same or different. For another example, if the description object is "information," "first information" and "second information" can be the same or different information, and their content can be the same or different.

[0065] 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.

[0066] 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.

[0067] In some embodiments, 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 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.

[0068] In some embodiments, devices and the like can be interpreted as physical or virtual, and their names are not limited to those in the embodiments.

[0069] The recorded names, "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject" and other terms can be used interchangeably.

[0070] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0071] In some embodiments, the terms "access network device (AN device)", "radio 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", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0072] 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.

[0073] 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, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms 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.

[0074] 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.

[0075] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0076] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0077] 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.

[0078] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0079] As shown in FIG1 , a communication system 100 includes a terminal 101 and a terminal 102 .

[0080] In some embodiments, terminal 101 and terminal 102 include, for example, at least one of a mobile phone, a wearable device, an Internet of Things device, a car with communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, 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 a wireless terminal device in a smart home, but are not limited thereto.

[0081] In some embodiments, the communication system may further include a network device, where the network device includes at least one of the following: an access network device and a core network device.

[0082] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0083] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0084] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0085] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0086] It can be understood 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. Ordinary technicians in this field 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.

[0087] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0088] The embodiments of the present disclosure can 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 802.20, 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 utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0089] FIG2 is an interactive schematic diagram illustrating a method for measuring a channel busy rate according to an embodiment of the present disclosure.

[0090] As shown in Figure 2, the channel busy rate measurement method includes:

[0091] In step S201 , the terminal 101 performs a first measurement.

[0092] In some embodiments, the terminal 101 may determine at least one first resource group and perform first information on resources in the at least one first resource group, wherein the first resource includes at least one resource in a first resource pool for transmitting a side link positioning reference signal SL-PRS, and the first resource pool includes resources for transmitting the SL-PRS.

[0093] In some embodiments, the first resource pool is a dedicated resource pool for transmitting SL-PRS, and the first resource pool includes SL-PRS resources. The first resource group includes at least one SL-PRS resource in the first resource pool.

[0094] In some embodiments, the first measurement includes at least one of the following: channel busy rate CBR measurement; channel occupancy rate CR measurement.

[0095] In some embodiments, the terminal may determine at least one first resource group and perform CBR measurement on the at least one first resource group.

[0096] In some embodiments, the terminal may determine at least one first resource group and perform CR measurement on the at least one first resource group.

[0097] In some embodiments, the terminal may determine at least one first resource group, and perform CBR measurement and CR measurement on the at least one first resource group.

[0098] In some embodiments, the terminal may determine at least one first group by having a higher layer of the terminal determine at least one first resource group in the first resource pool. For example, the terminal may determine at least one first resource group through a higher layer indication.

[0099] In some embodiments, the terminal may determine at least one first group by determining at least one first resource group in the first resource pool based on the configuration information of the first resource pool sent by the network device. For example, the terminal may indicate at least one first resource group based on the relevant information unit IE in the obtained configuration information of the first resource pool.

[0100] In some embodiments, the configuration information of the first resource group includes a resource identifier of the SL-PRS resource included in the first resource group.

[0101] In some embodiments, the resource identifiers of the SL-PRS resources included in each first resource group may be determined through a higher-layer indication.

[0102] In some embodiments, the resource identifier of the SL-PRS resource included in each first resource group may be determined through the relevant information unit IE in the acquired configuration information of the first resource pool.

[0103] In some embodiments, the terminal performs CBR measurement on the at least one first resource group, including: the terminal determines the number of first resources in the SL-PRS resources included in each first resource group; wherein the first resources are SL-PRS resources occupied by other terminals; the terminal determines the first CBR of each first resource group based on the ratio of the number of the first resources to the total amount of SL-RPS resources in the first resource group.

[0104] In some embodiments, the first resource group also includes a subchannel occupied by a physical side link control channel PSCCH; the terminal performs CBR measurement on at least one of the first resource groups, including: the terminal determines the number of first subchannels in the subchannels occupied by the PSCCH included in each first resource group; wherein the first subchannel is a subchannel occupied by the PSCCH of other terminals; the terminal determines the first CBR of each first resource group based on the ratio of the number of the first subchannels to the total number of subchannels occupied by the PSCCH in the first resource group.

[0105] In some embodiments, the first resource group also includes subchannels occupied by PSCCH, and the terminal performs CBR measurement on at least one of the first resource groups, including: the terminal determines the number of first resources in the SL-PRS resources included in each first resource group and the number of first subchannels in the subchannels occupied by PSCCH included in each first resource group; the terminal determines the first CBR of each first resource group based on the ratio of the number of first resources to the total amount of SL-PRS resources in the first resource group and the ratio of the number of first subchannels to the total amount of subchannels occupied by PSCCH in the first resource group.

[0106] In some embodiments, the first resource is an SL-PRS resource whose received signal strength exceeds a first threshold within a first time window; wherein the first time window is a CBR measurement window.

[0107] In some embodiments, the first subchannel is a subchannel occupied by a PUCCH whose received signal strength exceeds a second threshold within a first time window; wherein the first time window is a CBR measurement window.

[0108] In some embodiments, after performing CBR measurement on the first resource group to obtain the first CBR of the first resource group, a second resource group can be determined from the at least one first resource group; wherein, the second resource group is the first resource group whose corresponding first CBR is less than or equal to the CBR threshold; and the resources in the second resource group are indicated to the physical layer of the terminal for transmitting SL PRS.

[0109] In some embodiments, if multiple second resource groups are determined, resources in at least one second resource group among the multiple second resource groups are indicated to the physical layer of the terminal for transmitting the SL PRS.

[0110] In some embodiments, the CBR threshold is a CBR threshold corresponding to the first resource group.

[0111] In some embodiments, the CBR threshold may be determined based on a higher layer indication of the terminal.

[0112] In some embodiments, the CBR threshold carried by the acquired configuration information or pre-configuration information of the first resource group may be determined.

[0113] In some embodiments, the CBR threshold includes a CBR threshold corresponding to each priority level.

[0114] In some embodiments, the terminal performs CR measurement on at least one of the first resource groups, including: the terminal determines the number of second resources in the SL-PRS resources included in each of the first resource groups; wherein the second resources are SL-PRS resources occupied by the terminal; the terminal determines the first CR of each of the first resource groups based on the ratio of the number of the second resources to the total amount of SL-PRS resources in the first resource group.

[0115] In some embodiments, the first resource group also includes subchannels occupied by PSCCH; the terminal performs CR measurement on at least one of the first resource groups, including: the terminal determines the number of second subchannels in the subchannels occupied by PSCCH included in each of the first resource groups; wherein the second subchannel is a subchannel occupied by the PSCCH of the terminal; the terminal determines the first CR of each of the first resource groups based on the ratio of the number of the second subchannels to the total number of subchannels occupied by PSCCH in the first resource group.

[0116] In some embodiments, the first resource group also includes subchannels occupied by PSCCH; the terminal performs CR measurement on at least one of the first resource groups, including: the terminal determines the number of second resources in the SL-PRS resources included in each first resource group and the number of second subchannels in the subchannels occupied by PSCCH included in each first resource group; the terminal determines the first CR of each first resource group based on the ratio of the number of second subchannels to the total number of subchannels occupied by PSCCH in the first resource group and the ratio of the number of second subchannels to the total number of subchannels occupied by PSCCH in the first resource group.

[0117] In some embodiments, the second resources include SL-PRS resources occupied by the terminal in a first sub-window of a second time window and SL-PRS resources authorized to the terminal in a second sub-window of the second time window; wherein, the second time window is a CR measurement window, the first sub-window is a CR measurement window before the current moment in the CR measurement window, and the second sub-window is a CR measurement window starting from the current moment in the CR measurement window.

[0118] In some embodiments, the second subchannel includes a subchannel occupied by the PSCCH of the terminal in a first subwindow of a second time window and a subchannel occupied by the PSCCH authorized to the terminal in a second subwindow of the second time window; wherein, the second time window is a CR measurement window, the first subwindow is a CR measurement window before the current moment in the CR measurement window, and the second subwindow is a CR measurement window starting from the current moment in the CR measurement window.

[0119] In some embodiments, after measuring the CR of the at least one first resource group to obtain the first CR of the first resource group, a comparison result between the first CR of each first resource group and a CR threshold may be determined.

[0120] In some embodiments, the terminal determines that a first CR of the at least one first resource group is greater than a CR threshold; and the terminal triggers resource reselection to determine a new first resource group.

[0121] In some embodiments, the CR threshold is a CR threshold corresponding to the first resource group, that is, a CR threshold is configured for each first resource group.

[0122] In some embodiments, the CR threshold is determined by at least one of the following: a priority of the SL-PRS to be transmitted; and a CBR interval in which the first CBR of the first resource group is located.

[0123] In step S201 , terminal 101 and terminal 102 transmit SL-PRS.

[0124] In some embodiments, after the terminal performs CBR measurement and / or CR measurement on at least one first resource group, a second resource group can be determined from the at least one first resource group; wherein the second resource group is a first resource group whose corresponding first CBR is less than or equal to a CBR threshold; and the resources in the second resource group are indicated to the physical layer of the terminal for transmitting SL PRS.

[0125] The communication method involved in the embodiments of the present disclosure may include at least one of steps S201 to 202. For example, step S201 may be implemented as an independent embodiment, step S202 may be implemented as an independent embodiment, and steps S201+S202 may be implemented as independent embodiments, but are not limited thereto.

[0126] In some embodiments, steps S201 and S202 may be performed in an interchangeable order or simultaneously.

[0127] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0128] In some embodiments, step S202 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0129] In some embodiments, reference may be made to other optional embodiments described before or after the description corresponding to FIG. 2 .

[0130] In some embodiments, in side link (SL) positioning, for a resource pool used to transmit a side link reference signal (SL-PRS), after triggering resource selection, the higher layer may notify the physical layer of the SL-PRS resource identifier (ID), which is used to indicate the valid resource identifier of the SL-PRS resource that can be used as a candidate resource in each time slot in the candidate resource set when the physical layer performs resource exclusion based on the obtained SL-PRS ID.

[0131] There is no specific provision on how the higher layer determines the candidate resource set to be notified to the physical layer.

[0132] In some embodiments, the SL-PRS ID sent to the physical layer can be determined by performing a first measurement on resources in a resource pool. The first measurement may include a channel busy ratio (CBR) measurement, a channel occupancy ratio (CR) measurement, or the like. However, since the first measurement is based on the resource pool, the measurement result still cannot determine which resources in the resource pool are suitable for the current SL-PRS transmission. Therefore, it is necessary to consider adopting a corresponding enhancement solution.

[0133] In a first aspect, embodiments of the present disclosure provide a method for measuring a channel busy rate. FIG3 is a schematic flow chart illustrating a method for measuring a channel busy rate according to an embodiment of the present disclosure. The method for measuring a channel busy rate illustrated in this embodiment can be executed by a terminal.

[0134] As shown in FIG3 , the channel busy rate measurement method may include the following steps:

[0135] In step S301, the terminal determines at least one first resource group in a first resource pool; wherein the first resource pool includes resources for transmitting a side link positioning reference signal SL-PRS, and the first resource group includes at least one resource in the first resource pool.

[0136] In step S302, the terminal performs a first measurement on the at least one first resource group.

[0137] In some embodiments, a first resource pool for transmitting a side link positioning reference signal SL-PRS may be provided, wherein the first resource pool includes resources for transmitting the SL-PRS, and the resources for transmitting the SL-PRS may be referred to as SL-PRS resources.

[0138] The first resource pool may be determined by means of high-level instructions, network device configuration, or protocol pre-configuration.

[0139] In some embodiments, at least one first resource group in the first resource pool may be determined by a higher layer of the terminal, and the at least one first resource group may be determined through a higher layer indication.

[0140] In some embodiments, the terminal can determine at least one first resource group in the first resource pool based on the configuration information of the first resource pool sent by the network device, for example, can indicate at least one first resource group based on the relevant information unit IE in the obtained configuration information of the first resource pool.

[0141] In some embodiments, the SL-PRS resources may include any one or a combination of time domain resources or frequency domain resources. The time domain resources may be resources that divide time into time intervals such as symbols, time slots, and frames and can be allocated to PRS signals according to a certain scheduling mechanism; the frequency domain resources may be resources that divide frequency into different frequency bands and can be allocated to PRS signals according to certain rules and policies.

[0142] In some embodiments, the SL-PRS resource may be represented as a resource that can be used within each time domain interval, where the time domain interval may be a symbol, a time slot, a subframe, a frame, etc. For simplicity, the following embodiments are described using an example where the SL-PRS resource is represented as a SL-PRS resource that can be used within a time slot. The SL-PRS resource may consist of a starting symbol of the resource, a symbol length, a comb size, and a comb offset.

[0143] In some embodiments, the first resource pool may be a dedicated resource pool for transmitting SL-PRS (SL-PRS dedicated resource pool), and the resources included in the first resource pool may be used to transmit SL-PRS and PSCCH.

[0144] In some embodiments, the SL-PRS resources in the first resource pool may be grouped to obtain several resource groups, each resource group including at least one SL-PRS resource in the first resource pool. The SL-PRS resources included in different resource groups may be completely different or partially the same.

[0145] There are various ways to group the SL-PRS resources in the first resource pool. The grouping can be based on a preset grouping strategy. For example, the grouping can be based on the time domain resources corresponding to each SL-PRS resource, and the SL-PRS resources in the same time interval can be divided into the same resource group; or the grouping can be based on the frequency domain resources corresponding to each SL-PRS resource, and the SL-PRS resources in the same frequency band can be divided into the same resource group; or, the grouping can be based on the priority configured for each SL-PRS resource; or, the grouping can be based on the function or purpose configured for each SL-PRS resource.

[0146] The resource groups obtained by grouping the SL-PRS resources in the first resource pool may be pre-configured, for example, by high-level configuration, network configuration, protocol configuration, etc.

[0147] In some embodiments, at least one resource group may be determined from the plurality of resource groups obtained by grouping the first resource pool as a first resource group, and a first measurement may be performed using resources in the first resource group as a measurement scope. The at least one first resource group determined from the plurality of resource groups may include all resource groups, or only one resource group, or a portion of the resource groups.

[0148] The first resource group may include at least one SL-PRS resource, and performing a first measurement on the SL-PRS resources included in the first resource group is equivalent to measuring the CBR and CR of the SL-PRS resources included in the first resource group in all time slots of the measurement window.

[0149] If the first resource group includes one SL-PRS resource, performing the first measurement on the first resource group is equivalent to performing the first measurement on a single resource (per resource), that is, measuring the CBR and CR of the single resource in all time slots of the measurement window.

[0150] If the first resource group includes multiple SL-PRS resources, performing a first measurement on the first resource group is equivalent to performing a first measurement on a resource subset (resource subset) including the multiple SL-PRS resources, that is, measuring the CBR and CR of the resource subset in all time slots of the measurement window.

[0151] For example, a first resource pool P includes eight SL-PRS resources {R1, R2, ..., R8}. The first resource pool is grouped to obtain three resource groups G1, G2, and G3, where G1 = {R1, R2, R3}, meaning that R1, R2, R3 can be used in one time slot; G2 = {R4, R5, R6, R7}, meaning that R4, R5, R6, R7 can be used in one time slot; and G3 = {R7, R8}, meaning that R7 and R8 can be used in one time slot. G1 and G2 can be determined as the first resource group, and a first measurement can be performed on G1 and G2, respectively.

[0152] The first measurement is a measurement for measuring the utilization of resources in the first resource group. In some embodiments, the first measurement may include a channel busy rate (CBR) measurement and / or a channel occupancy rate (CR) measurement.

[0153] In some embodiments, after determining at least one first resource group, a CBR measurement may be performed on each first resource group respectively, and the obtained CBR measurement result includes a first CBR of each first resource group.

[0154] In some embodiments, after determining at least one first resource group, CR measurement may be performed on each first resource group respectively, and the obtained CR measurement results include the first CR of each first resource group.

[0155] In some embodiments, after determining at least one first resource group, CBR measurement and CR measurement may be performed on each first resource group respectively to obtain a first CBR and a first CR of each first resource group.

[0156] For example, if G1 and G2 are determined to be the first resource group, CBR measurement and CR measurement are performed on G1 and G2 respectively, and the CBR measurement result of G1 is CBR1, the CR measurement result of G1 is CR1, the CBR measurement result of G2 is CBR2, and the measurement result of G2 is CR2.

[0157] In some embodiments, after determining at least one first resource group and performing CBR measurement and / or CR measurement on at least one of the first resource groups, the value range of the parameters when transmitting SL-PRS can be controlled based on the measurement results of the CBR measurement and / or CR measurement, or the corresponding threshold value can be set to prevent each terminal from excessively occupying resources; or the load caused by each terminal can be balanced from a system perspective.

[0158] In some embodiments, after determining at least one first resource group and performing CRB measurement and / or CR measurement on each first resource group, the first CBR and / or first CR corresponding to each first resource group can be obtained based on the measurement results, and it can be determined whether the SL-PRS ID notified to the physical layer includes the resource identifier of the SL-PRS resource in the first resource group.

[0159] It should be noted that the side link SL can also be called a side link, a secondary link, a side link, a side link, etc.

[0160] It should be noted that the embodiment shown in FIG. 3 can be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific selection can be made as needed and the present disclosure does not limit it.

[0161] In the above embodiment, the first resource pool is grouped, a first resource group is determined from the grouped resource groups, and the first measurement is performed on the resources in the first resource group. As can be seen, compared with performing the first measurement on the resources in the resource pool, performing the first measurement on the resources in the resource group allows for measuring the channel busy rate at a relatively smaller granularity to determine the resource utilization status of each first resource group. Furthermore, the SL-PRS ID sent to the physical layer can be determined on a per-resource group basis.

[0162] In some embodiments, the method for determining the first resource group as the measurement range of the first measurement can be to determine at least one first resource group based on the obtained indication information, and the configuration information of each first resource group, the configuration information including the resource identifier of the SL-PRS resource contained in the first resource group; or at least one first resource group can be selected from several resource groups obtained by grouping based on a preset selection strategy to determine the resource identifier of the SL-PRS resource contained in each first resource group.

[0163] The indication information for indicating the first resource group may be derived from a higher-layer indication and / or an information element (IE) of the first resource pool. The method for selecting at least one first resource group from the plurality of resource groups obtained by grouping based on the selection policy may include adopting a method corresponding to the grouping method; for example, determining whether to use the resource group as the first resource group based on time domain resources, frequency domain resources, and / or priority corresponding to SL-PRS resources in each resource group; and if determined to be the first resource group, determining resource identifiers included in the resource group as resource identifiers included in the first resource group.

[0164] In some embodiments, configuration information for the first resource group can be obtained based on a higher-layer indication and / or an IE of the first resource pool. The configuration information for the first resource group can include resource identifiers of the SL-PRS resources included in the first resource group. For example, the configuration information for the first resource groups G1 and G2 can be expressed as G1 = {R1, R2, R3} and G2 = {R4, R5, R6, R7}, where R1-R7 are resource identifiers of the SL-PRS resources.

[0165] In some embodiments, after determining the first resource group, if the first measurement includes a CBR measurement, a CBR measurement may be performed on each first resource group to obtain a first CBR for each first resource group. The CBR measurement performed on the first resource group is used to measure the resource occupied and busy ratios in the resources of the first resource group.

[0166] Performing CBR measurement on the first resource group may include: performing CBR measurement on the SL-PRS resources in the first resource group, and / or performing CBR measurement on a subchannel occupied by the PSCCH in the first resource group.

[0167] In some embodiments, the terminal can determine the number of first resources in the SL-PRS resources included in each first resource group; wherein the first resources are SL-PRS resources occupied by other terminals; the terminal determines the first CBR of each first resource group based on the ratio of the number of the first resources to the total amount of SL-RPS resources in the first resource group.

[0168] In some embodiments, the first resource group also includes subchannels occupied by a physical side link control channel PSCCH, and the terminal can determine the number of first subchannels in the subchannels occupied by the PSCCH included in each first resource group; wherein the first subchannel is a subchannel occupied by the PSCCH of other terminals; the terminal determines the first CBR of each first resource group based on the ratio of the number of the first subchannels to the total number of subchannels occupied by the PSCCH in the first resource group.

[0169] In some embodiments, the terminal can determine the number of first resources in the SL-PRS resources included in each first resource group and the number of first subchannels in the subchannels occupied by the PSCCH included in each first resource group; the terminal determines the first CBR of each first resource group based on the ratio of the number of first resources to the total amount of SL-PRS resources in the first resource group and the ratio of the number of first subchannels to the total amount of subchannels occupied by the PSCCH in the first resource group.

[0170] In some embodiments, when performing CBR measurement on the first resource group, a first time window can be first determined as a CBR measurement window (CBR measurement window) for performing CBR measurement, and then, within the first time window, a first resource quantity of SL-PRS resources occupied by other terminals in the SL-PRS resources included in the first resource group and / or a first subchannel quantity of subchannels occupied by PSCCHs of other terminals in the subchannels occupied by PSCCHs included in the first resource group are measured. The first time window can be a time window before the current moment, for example, starting from time slot na, which is the first time slot number a before time slot n at the current moment, to time slot n-1 before the current moment, that is, the first time window = [na, n-1].

[0171] The number of the first time slots a can be set according to actual needs, for example, a=100 or 100·2 μ , μ is the system corresponding to the subcarrier spacing (SCS). The larger the subcarrier spacing, the larger the corresponding μ.

[0172] In some embodiments, the first resource is an SL-PRS resource whose received signal strength exceeds a first threshold within a first time window; wherein the first time window is a CBR measurement window.

[0173] When performing CBR measurement on each first resource group, a signal strength measurement can be performed on each SL-PRS resource in each time slot within the determined first time window, and the obtained signal strength corresponding to each SL-PRS resource is compared with a first threshold value preset as a threshold value; if the corresponding signal strength is greater than or equal to the first threshold value, the SL-PRS resource is considered to be occupied by other terminals and is a first resource; if the corresponding signal strength is less than the first threshold value, the SL-PRS resource is considered not to be occupied by other terminals and is not a first resource. The number of first resources in the first resource group can be determined based on the comparison result of the signal strength corresponding to each SL-PRS resource and the first threshold value.

[0174] In one embodiment, the signal strength measurement may be a Received Signal Strength Indication (RSSI) measurement, and the obtained signal strength corresponding to each SL-PRS resource is the first RSSI corresponding to each SL-PRS resource; the first RSSI corresponding to each SL-PRS resource is compared with a first threshold value preset as a threshold value; if the first RSSI is greater than or equal to the first threshold value, the SL-PRS resource is considered to be occupied by other terminals and is the first resource; if the first RSSI is less than the first threshold value, the SL-PRS resource is considered not to be occupied by other terminals and is not the first resource. The number of first resources in the first resource group can be determined based on the comparison result of the first RSSI corresponding to each SL-PRS resource and the first threshold value.

[0175] A first CBR of the first resource group may be determined based on a ratio of the amount of the first resources to a total amount of SL-PRS resources in the first resource group.

[0176] For example, G1 and G2 are determined to be the first resource group, where G1 = {R1, R2, R3} and G2 = {R4, R5, R6, R7}. In each time slot within the first time window [na, n-1], RSSI measurements are performed on R1, R2, and R3 in G1, respectively, to obtain first RSSIs of S1, S2, and S3 in each time slot, respectively. RSSI measurements are performed on R4, R5, R6, and R7 in G2, to obtain first RSSIs of S4, S5, S6, and S7, respectively. Determine the first threshold as S0; compare S1 to S7 with S0 respectively. If the comparison results in time slot m are that S1, S5, and S7 are greater than or equal to S0, and the others are all less than S0, then it is determined that in time slot m, R1 in first resource group G1 is occupied as the first resource by another terminal, and the number of first resources of G1 in time slot m is 1. R5 and R7 in first resource group G2 are occupied as first resources by other terminals, and the number of first resources of G2 in time slot m is 2. Add the number of first resources in each time slot in the first time window to obtain the number N1 of first resources of G1, and add the number of first resources in each time slot in the first time window to obtain the number N2 of first resources of G2. Calculate that the ratio of the number N1 of first resources of first resource group G1 to the total amount 3a of resources of first resource group G1 is N1 / 3a, and the ratio of the number N2 of first resources of first resource group G2 to the total amount 4a of resources of first resource group G1 is N2 / 4a. If the ratio of the quantity of the first resources to the total amount of resources is taken as the first CBR, the first CBR of G1 is N1 / 3a, and the first CBR of G2 is N2 / 4a.

[0177] In some embodiments, the first subchannel is a subchannel occupied by a PUCCH whose received signal strength exceeds a second threshold within a first time window.

[0178] When performing CBR measurement on each first resource group, the signal strength of each subchannel occupied by the PSCCH can be measured within a determined first time window, and the corresponding signal strength of each subchannel occupied by the PSCCH can be compared with a pre-set second threshold value as a threshold value; if the corresponding signal strength is greater than or equal to the second threshold value, the subchannel occupied by the PSCCH is considered to be occupied by other terminals and is a first subchannel; if the corresponding signal strength is less than the first threshold value, the subchannel occupied by the PSCCH is considered not to be occupied by other terminals and is not a first subchannel. The number of first subchannels in the first resource group can be determined based on the comparison result of the signal strength corresponding to each SL-PRS resource and the first threshold value.

[0179] In one embodiment, the signal strength measurement can be a signal strength indication (RSSI) measurement, and the obtained signal strength corresponding to the sub-channel occupied by each PSCCH is the first RSSI corresponding to the sub-channel occupied by each PSCCH; the first RSSI corresponding to the sub-channel occupied by each PSCCH is compared with a first threshold value preset as a threshold value, and if the first RSSI is greater than or equal to the first threshold value, it is considered that the sub-channel occupied by the PSCCH is occupied by other terminals and is the first sub-channel; if the first RSSI is less than the first threshold value, it is considered that the sub-channel occupied by the PSCCH is not occupied by other terminals and is not the first sub-channel. The number of first sub-channels in the first resource group can be determined based on the comparison result of the first RSSI corresponding to the sub-channel occupied by each PSCCH and the second threshold value.

[0180] The first CBR of the first resource group may be determined based on a ratio of the number of the first subchannels to the total number of subchannels occupied by the PSCCH in the first resource group.

[0181] In some embodiments, the terminal may determine, through signal strength measurement, the number of first resources in the SL-PRS resources included in each first resource group and the number of first subchannels in the subchannels occupied by the PSCCH included in each first resource group; and determine a first CBR for each first resource group based on a ratio of the number of first resources to the total number of SL-PRS resources in the first resource group and a ratio of the number of first subchannels to the total number of subchannels occupied by the PSCCH in the first resource group. For example, the first CBR may be obtained by taking a weighted sum of the two ratios.

[0182] In some embodiments, after determining the first resource group, if the first measurement includes a CR measurement, a CR measurement may be performed on each first resource group to obtain a first CR for each first resource group. The CR measurement performed on the first resource group is used to measure the effective occupied ratio of resources in the first resource group.

[0183] Performing CR measurement on the first resource group may include: performing CR measurement on the SL-PRS resources included in the first resource group, and / or performing CR measurement on the sub-channel occupied by the PSCCH included in the first resource group.

[0184] In some embodiments, the terminal can determine the number of second resources in the SL-PRS resources included in each first resource group; wherein the second resources are SL-PRS resources occupied by the terminal; the terminal determines the first CR of each first resource group based on the ratio of the number of the second resources to the total amount of SL-PRS resources in the first resource group.

[0185] In some embodiments, the terminal determines the number of second subchannels in the subchannels occupied by the PSCCH included in each of the first resource groups; wherein the second subchannel is the subchannel occupied by the PSCCH of the terminal; the terminal determines the first CR of each of the first resource groups based on the ratio of the number of the second subchannels to the total number of subchannels occupied by the PSCCH in the first resource group.

[0186] In some embodiments, the terminal determines the number of second resources in the SL-PRS resources included in each of the first resource groups and the number of second subchannels in the subchannels occupied by the PSCCH included in each of the first resource groups; the terminal determines the first CR of each of the first resource groups based on the ratio of the number of the second subchannels to the total number of subchannels occupied by the PSCCH in the first resource group and the ratio of the number of the second subchannels to the total number of subchannels occupied by the PSCCH in the first resource group.

[0187] In some embodiments, when performing CR measurement on the first resource group, a second time window can be first determined as the CR measurement window (CR measurement window) for performing CR measurement, and then the second resource quantity of SL-PRS resources occupied by the current terminal in the SL-PRS resources included in the first resource group within the second time window and / or the second sub-channel quantity of sub-channels occupied by the PSCCH of the current terminal in the sub-channels occupied by the PSCCH included in the first resource group are determined.

[0188] Among them, the second time window may include a first sub-window and a second sub-window, the first sub-window is the CR measurement window before the current time slot in the CR measurement window, for example, it can be the time slot nb that is the second time slot number b before the time slot n at the current moment and at least the first time slot n-1 at the current moment, that is, the first sub-window = [nb, n-1]; the second sub-window is the CR measurement window starting from the current time slot in the CR measurement window, for example, it can be the time slot n at the current moment and the time slot n+c that is the third time slot number after the current moment, that is, the second sub-window = [n, n+c].

[0189] The second time slot number b and the third time slot number c can be set according to actual needs. For example, the second time slot number b can be set to be the same as the first time slot number a, that is, b=100 or 100·2 μ , b + c = 1000 or 1000 2 μ .

[0190] In some embodiments, the second resources include SL-PRS resources occupied by the terminal in a first sub-window of a second time window and SL-PRS resources authorized to the terminal in a second sub-window of the second time window; wherein, the second time window is a CR measurement window, the first sub-window is a CR measurement window before the current moment in the CR measurement window, and the second sub-window is a CR measurement window starting from the current moment in the CR measurement window.

[0191] In some embodiments, the SL-PRS resources occupied by the terminal in the first sub-window of the second time window can be determined as the second resources in the first sub-window, and the SL-PRS resources authorized to the terminal in the second sub-window of the second time window can be determined as the second resources in the second sub-window, and the number of second resources in the first sub-window and the second sub-window are added to obtain the number of second resources.

[0192] A first CR of the first resource group may be determined based on a ratio of the second resource quantity to a total amount of SL-PRS resources in the first resource group.

[0193] In some embodiments, the second subchannel includes a subchannel occupied by the PSCCH of the terminal in a first subwindow of a second time window and a subchannel occupied by the PSCCH authorized to the terminal in a second subwindow of the second time window; wherein, the second time window is a CR measurement window, the first subwindow is a CR measurement window before the current moment in the CR measurement window, and the second subwindow is a CR measurement window starting from the current moment in the CR measurement window.

[0194] In some embodiments, the subchannel occupied by the PSCCH of the terminal in the first subwindow of the second time window can be determined as the second subchannel in the first subwindow, and the subchannel occupied by the PSCCH authorized to the terminal in the second subwindow of the second time window can be determined as the second subchannel in the second subwindow, and the number of second subchannels in the first subwindow and the second subwindow can be added to obtain the number of second subchannels.

[0195] The first CR of the first resource group may be determined based on a ratio of the number of the second subchannels to the total number of subchannels occupied by the PSCCH in the first resource group.

[0196] In some embodiments, the terminal separately determines the number of second resources in the SL-PRS resources included in each first resource group and the number of second subchannels in the subchannels occupied by the PSCCH included in each first resource group; and determines a first CR for each first resource group based on a ratio of the number of second resources to the total number of SL-PRS resources in the first resource group and a ratio of the number of second subchannels to the total number of subchannels occupied by the PSCCH in the first resource group. For example, the first CBR can be obtained by taking a weighted sum of the two ratios.

[0197] In the above embodiment, by performing CBR measurement and / or CR measurement on the resources in the determined first resource group, the channel busy rate measurement can be performed within a relatively smaller granularity range, and the channel busy rate situation can be understood more accurately within the scope of each first resource group, and then the SL-PRS ID sent to the physical layer can be determined in units of resource groups.

[0198] In some embodiments, the terminal may be configured with a CBR threshold.

[0199] In some embodiments, after performing a CBR measurement on at least one determined first resource group and obtaining a first CBR corresponding to each first resource group, the first CBR corresponding to each first resource group can be compared with a CBR threshold. If the first CBR corresponding to the first resource group is less than or equal to the CBR threshold, the first resource group is considered eligible as the second resource group, and the resources in the second resource group can be indicated to the physical layer of the terminal for resource exclusion to determine a candidate resource set. If the first CBR corresponding to the first resource group is greater than the CBR threshold, the first resource group is considered unsuitable for use as the second resource group. Based on the comparison result of the CBR corresponding to each first resource group and the CBR threshold, at least one second resource group can be determined from the at least one first resource group, and the resources in the second resource group can be indicated to the physical layer of the terminal for resource exclusion. Indicating the resources in the second resource group to the physical layer of the terminal can include indicating the resource identifiers of the SL-PRS resources contained in the second resource group to the physical layer of the terminal.

[0200] In some embodiments, after comparing the first CBR corresponding to each first resource group with the CBR threshold, if multiple second resource groups are determined, the resources included in the multiple second resource groups can be combined and indicated to the physical layer of the terminal; or at least one second resource group can be selected from the multiple second resource groups and the resources included therein can be indicated to the physical layer of the terminal.

[0201] For example, determine that the first resource group G1 = {R1, R2, R3}, G2 = {R4, R5, R6, R7}, G3 = {R7, R8}, perform CBR measurement on G1, G2, G3 to obtain the first CBRs B1, B2, B3 respectively, determine the CBR threshold to be B0, compare B1, B2, B3 with B0 respectively, and obtain B1, B2 less than or equal to B0, and B3 greater than B0; then G1 and / or G2 can be determined as the selected resource group. If G1 is used as the selected resource group, the resource identifier {R1, R2, R3} of the SL-PRS resources in G1 can be indicated to the physical layer of the terminal for resource exclusion; if G2 is used as the selected resource group, the resource identifier {R4, R5, R6, R7} of the SL-PRS resources in G2 can be indicated to the physical layer of the terminal for resource exclusion; if G1 and G2 are used as the selected resource groups, the resource identifiers of the SL-PRS resources in G1 and G2 can be merged into {R1, R2, R3, R4, R5, R6, R7} and indicated to the physical layer of the terminal for resource exclusion.

[0202] In some embodiments, the manner of obtaining the CBR threshold may be indicated by a higher layer of the terminal, or may be carried in the obtained configuration information or pre-configuration information of the first resource group.

[0203] In some embodiments, a corresponding CBR threshold can be configured for each first resource group. For example, the first resource groups G1 and G2 can be expressed as G1 = {R1, R2, R3; B01}, G2 = {R4, R5, R6, R7; B02}, respectively, where B01 is the CBR threshold corresponding to the first resource group G1, and B02 is the CBR threshold corresponding to the first resource group G2.

[0204] In some embodiments, the CBR threshold may include a CBR threshold corresponding to each priority. For the currently transmitted SL-PRS, the terminal may determine a target priority and determine the CBR threshold corresponding to the target priority as the current CBR threshold. For example, the configured CBR threshold includes a CBR threshold B10 corresponding to priorities 0 to 3 and a CBR threshold B20 corresponding to priorities 4 to 7. If the priority corresponding to the currently transmitted SL-PRS is 5, the terminal may use the CBR threshold B20 corresponding to priority 5 as the current CBR threshold; the first CBRs obtained by performing CBR measurement on the first resource groups G1, G2, and G3 are B1, B2, and B3, respectively. B1, B2, and B3 are compared with B20, respectively, and B1 and B2 are less than or equal to B20, and B3 is greater than B20; G1 and / or G2 may be determined as the selected resource group, and the resource identifier of the SL-PRS resource therein is indicated to the physical layer for resource exclusion.

[0205] In some embodiments, the CBR threshold configured for each first resource group may include CBR thresholds corresponding to respective priorities. For example, first resource groups G1 and G2 may be represented as G1 = {R1, R2, R3; Priority 0-3, B11; Priority 4-7, B12}, and G2 = {R4, R5, R6, R7; Priority 0-3, B21; Priority 4-7, B22}, respectively. B11 is the CBR threshold corresponding to priorities 0-3 in first resource group G1, B12 is the CBR threshold corresponding to priorities 4-7 in first resource group G1, B21 is the CBR threshold corresponding to priorities 0-3 in first resource group G2, and B22 is the CBR threshold corresponding to priorities 4-7 in first resource group G2.

[0206] In some embodiments, when determining a second resource group from at least one first resource group and sending the resources included in the second resource group to the physical layer of the terminal for resource exclusion, some transmission parameters may be further determined and their value ranges may be limited. The transmission parameters may include at least one of the following: the number of SL-PRS resources in each time slot; comb size (comb-size), number of symbols, etc. For example, the maximum number of SL-PRS resources in each time slot; the maximum comb size of an SL-PRS resource in each time slot; the maximum number of OFDM symbols in an SL-PRS resource in each time slot, etc. may be limited. Furthermore, the maximum SL-PRS transmission power and the maximum number of SL-PRS transmissions or retransmissions may also be limited.

[0207] In the above embodiment, by performing CBR measurement on the resources in the determined first resource group and comparing the first CBR corresponding to each first resource group obtained by measurement with the CBR threshold, the first resource group whose first CBR is less than or equal to the CBR threshold can be used as the selected resource group, and the SL-PRS resource in the selected resource group can be used as the SL-PRS ID, so that the SL-PRS ID sent to the physical layer can be determined in units of resource groups.

[0208] In some embodiments, the terminal may be provided with a CR threshold.

[0209] In some embodiments, after performing CR measurement on at least one determined first resource group, the terminal may require that the measured first CR of each used first resource group be less than or equal to a CR threshold. If the first CR corresponding to the first resource group is less than or equal to the CR threshold, it indicates that the first resource group meets the current transmission requirements; if the first CR corresponding to the first resource group is greater than the CR threshold, it indicates that the first resource group does not meet the current transmission requirements.

[0210] In some embodiments, if the terminal determines that the first CR of any first resource group among the at least one first resource group is greater than a CR threshold, the terminal may choose to abandon the first resource group, or the terminal may reselect a first resource group to replace the first resource group.

[0211] In some embodiments, if the terminal determines that the first CRs of the at least one first resource group are all greater than a CR threshold, the terminal may trigger resource reselection, re-determine a new first resource group, and perform a first measurement on the new first resource group.

[0212] In some embodiments, if the terminal determines that the first CRs of the at least one first resource group are all greater than a CR threshold, the terminal may also abandon the current resource selection.

[0213] In some embodiments, there are various ways to obtain the CR threshold, for example, it can be indicated by a higher layer, or it can be carried in the configuration information or pre-configuration information of the first resource group.

[0214] In some embodiments, a corresponding CR threshold can be configured for each first resource group. For example, the first resource groups G1 and G2 can be expressed as G1 = {R1, R2, R3; C01}, G2 = {R4, R5, R6, R7; C02}, respectively, where C01 is the CR threshold corresponding to the first resource group G1, and C02 is the CR threshold corresponding to the first resource group G2.

[0215] In some embodiments, the CR threshold may include a CR threshold corresponding to each priority. For the SL-PRS to be sent currently, the terminal may determine the priority of the SL-PRS to be sent as the target priority, determine the CR threshold C0(k) corresponding to the target priority as the current CR threshold, and perform CR measurement on each first resource group based on the target priority k to measure the proportion CR (i≤k) of resources in the first resource group occupied by the current terminal and having a priority not lower than the target priority k as the first CR corresponding to the target priority. The lower the number corresponding to the priority, the higher the priority. The terminal may require each first resource group to satisfy the formula: CR(i≤k)≤C0(k). If the first resource group does not satisfy the formula, resource reselection may be triggered.

[0216] For example, G1 and G2 are determined to be the first resource group, where G1 = {R1, R2, R3}, G2 = {R4, R5, R6, R7}, a target priority k = 5, and a CR threshold C0(5) corresponding to the target priority 5 are determined. CR measurements are performed on G1 and G2. Within the second time window [nb, n+c], the SL-PRS resources occupied by the terminal in the first sub-window [nb, n-1] and having a priority not less than 5 are determined to be R3 and R6, and the SL-PRS resources authorized to the terminal in the second sub-window [n, n+c] and having a priority not less than 5 are determined to be R7. Then it can be considered that the SL-PRS resource in G1 occupied by the terminal and with a priority not less than 5 is R3, the second resource quantity of G1 is 1, and the ratio of the first resource quantity of the second resource group to the total resource quantity is calculated to be 1 / 3; the SL-PRS resources in G2 occupied by the terminal and with a priority not less than 5 are R6 and R7, the second resource quantity of G2 is 2, and the ratio of the second resource quantity to the total resource quantity is 1 / 2. If the ratio of the second resource quantity to the total resource quantity is taken as the first CR, the first CR corresponding to the target priority 5 of G1 is CR(i≤5)=1 / 3, and the first CR corresponding to the target priority 5 of G2 is CR(i≤5)=1 / 2. Determine the CR(i≤5) of G1 and G2 respectively and compare them with the CR threshold C0(5). If the CR(i≤5) of G1≤C0(5) and the CR(i≤k5) of G2>C0(5), it is determined that resource reselection can be triggered for G2.

[0217] In some embodiments, the CR threshold configured for each first resource group may include CR thresholds corresponding to respective priorities. For example, first resource groups G1 and G2 may be represented as G1 = {R1, R2, R3; Priority 0-3, C11; Priority 4-7, C12}, and G2 = {R4, R5, R6, R7, Priority 0-3, C21; Priority 4-7, C22}, respectively. C11 is the CR threshold corresponding to priorities 0-3 in the first resource group G1, C12 is the CR threshold corresponding to priorities 4-7 in the first resource group G1, C21 is the CR threshold corresponding to priorities 0-3 in the first resource group G2, and C22 is the CR threshold corresponding to priorities 4-7 in the first resource group G2.

[0218] In some embodiments, the configured CR threshold may also be related to the CBR range, and corresponding CR thresholds may be set based on different CBR ranges. For example, for the first resource groups G1 and G2, they may be represented as G1 = {R1, R2, R3; Priority 0-3, CBR range (B1-B2), C11; Priority 4-7, CBR range (B1-B2), C12; Priority 0-3, CBR range (B2-B3), C13; Priority 4-7, CBR range (B2-B3), C14}, and G2 = {R4, R5, R6, R7, Priority 0-3, CBR range (B1-B2), C21; Priority 4-7, CBR range (B1-B2), C22; Priority 0-3, CBR range (B2-B3), C23; Priority 4-7, CBR range (B2-B3), C24}, where C11 is the CR threshold corresponding to priorities 0-3 and CBR range (B1-B2) in the first resource group G1, C12 is the CR threshold corresponding to priorities 4-7 and CBR range (B1-B2) in the first resource group G1, C13 is the CR threshold corresponding to priorities 0-3 and CBR range (B2-B3) in the first resource group G1, C14 is the CR threshold corresponding to priorities 4-7 and CBR range (B2-B3) in the first resource group G1, C21 is the CR threshold corresponding to priorities 0-3 and CBR range (B1-B2) in the first resource group G2, C22 is the CR threshold corresponding to priorities 4-7 and CBR range (B1-B2) in the first resource group G2, C23 is the CR threshold corresponding to priorities 0-3 and CBR range (B2-B3) in the first resource group G2, and C24 is the CR threshold corresponding to priorities 4-7 and CBR range (B2-B3) in the first resource group G2. CR threshold corresponding to range (B2 to B3).

[0219] In the above embodiment, after measuring the CR of each first resource group, the first resource group may be required to meet a preset CR threshold. If not, corresponding resource reselection may be triggered within the granularity of the resource group.

[0220] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0221] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0222] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0223] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0224] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0225] Corresponding to the aforementioned embodiment of the channel busy rate measurement method, the present disclosure also provides a terminal embodiment.

[0226] An embodiment of the present disclosure also proposes a terminal, comprising: one or more processors; a memory coupled to the processor, the memory storing executable instructions, wherein when the executable instructions are executed by the processor, the terminal executes the channel busy rate measurement method described in the above embodiment.

[0227] FIG4 is a schematic block diagram of a terminal device structure according to an embodiment of the present disclosure. As shown in FIG4 , the terminal may be a channel busy rate measurement device, and the device includes a processing module 401 and a transceiver module 402 .

[0228] In some embodiments, the processing module 401 determines at least one first resource group in a first resource pool; wherein the first resource pool includes resources for transmitting a side link positioning reference signal SL-PRS, and the first resource group includes at least one resource in the first resource pool; the transceiver module 402 is used to perform a first measurement on the at least one first resource group.

[0229] In some embodiments, the first resource pool is a dedicated resource pool for transmitting SL-PRS.

[0230] In some embodiments, the first measurement includes at least one of the following: channel busy rate CBR measurement; channel occupancy rate CR measurement.

[0231] In some embodiments, the determining of at least one first resource group in the first resource pool includes one of the following: the high layer of the terminal determines at least one first resource group in the first resource pool; determining at least one first resource group in the first resource pool according to the configuration information of the first resource pool sent by the network device.

[0232] In some embodiments, the configuration information of the first resource pool includes: a resource identifier of the SL-PRS resource included in the first resource group.

[0233] In some embodiments, the transceiver module 402 is used to determine the number of first resources in the SL-PRS resources included in each first resource group; wherein the first resources are SL-PRS resources occupied by other terminals; the processing module 401 is used to determine the first CBR of each first resource group based on the ratio of the number of the first resources to the total amount of SL-RPS resources in the first resource group.

[0234] In some embodiments, the first resource group also includes a sub-channel occupied by a physical side link control channel PSCCH; the transceiver module 402 is used to determine the number of first sub-channels in the sub-channels occupied by the PSCCH included in each first resource group; wherein the first sub-channel is a sub-channel occupied by the PSCCH of other terminals; the processing module 401 is used to determine the first CBR of each first resource group based on the ratio of the number of the first sub-channels to the total number of sub-channels occupied by the PSCCH in the first resource group.

[0235] In some embodiments, the first resource group also includes sub-channels occupied by PSCCH, and the transceiver module 402 is used to determine the number of first resources in the SL-PRS resources included in each first resource group and the number of first sub-channels in the sub-channels occupied by PSCCH included in each first resource group; the processing module 401 is used to determine the first CBR of each first resource group based on the ratio of the number of first resources to the total amount of SL-RPS resources in the first resource group and the ratio of the number of first sub-channels to the total amount of sub-channels occupied by PSCCH in the first resource group.

[0236] In some embodiments, the first resource is an SL-PRS resource whose received signal strength exceeds a first threshold within a first time window; wherein the first time window is a CBR measurement window.

[0237] In some embodiments, the first subchannel is a subchannel occupied by a PUCCH whose received signal strength exceeds a second threshold within a first time window; wherein the first time window is a CBR measurement window.

[0238] In some embodiments, the processing module 401 is used to determine a second resource group from the at least one first resource group; wherein the second resource group is a first resource group whose corresponding first CBR is less than or equal to a CBR threshold; and the resources in the second resource group are indicated to the physical layer for transmitting SL PRS.

[0239] In some embodiments, the processing module 401 is configured to, if multiple second resource groups are determined, indicate resources in at least one of the multiple second resource groups to the physical layer for transmitting the SL PRS.

[0240] In some embodiments, the CBR threshold is a CBR threshold corresponding to the first resource group.

[0241] In some embodiments, the CBR threshold is determined by one of the following methods: indicated by a higher layer; carried in the acquired configuration information or pre-configuration information of the first resource group.

[0242] In some embodiments, the CBR threshold includes a CBR threshold corresponding to each priority level.

[0243] In some embodiments, the transceiver module 402 is used to determine the number of second resources in the SL-PRS resources included in each first resource group; wherein the second resources are SL-PRS resources occupied by the terminal; the processing module 401 is used to determine the first CR of each first resource group based on the ratio of the number of the second resources to the total amount of SL-PRS resources in the first resource group.

[0244] In some embodiments, the first resource group also includes sub-channels occupied by PSCCH; the transceiver module 402 is used to determine the number of second sub-channels in the sub-channels occupied by PSCCH included in each first resource group; wherein the second sub-channel is the sub-channel occupied by the PSCCH of the terminal; the processing module 401 is used to determine the first CR of each first resource group based on the ratio of the number of second sub-channels to the total number of sub-channels occupied by PSCCH in the first resource group.

[0245] In some embodiments, the first resource group also includes subchannels occupied by PSCCH; the transceiver module 402 is used to determine the number of second resources in the SL-PRS resources included in each first resource group and the number of second subchannels in the subchannels occupied by PSCCH included in each first resource group; the processing module 401 is used to determine the first CR of each first resource group based on the ratio of the number of second subchannels to the total number of subchannels occupied by PSCCH in the first resource group and the ratio of the number of second subchannels to the total number of subchannels occupied by PSCCH in the first resource group.

[0246] In some embodiments, the second resources include SL-PRS resources occupied by the terminal in a first sub-window of a second time window and SL-PRS resources authorized to the terminal in a second sub-window of the second time window; wherein, the second time window is a CR measurement window, the first sub-window is a CR measurement window before the current moment in the CR measurement window, and the second sub-window is a CR measurement window starting from the current moment in the CR measurement window.

[0247] In some embodiments, the second subchannel includes a subchannel occupied by the PSCCH of the terminal in a first subwindow of a second time window and a subchannel occupied by the PSCCH authorized to the terminal in a second subwindow of the second time window; wherein, the second time window is a CR measurement window, the first subwindow is a CR measurement window before the current moment in the CR measurement window, and the second subwindow is a CR measurement window starting from the current moment in the CR measurement window.

[0248] In some embodiments, the processing module 401 is configured to determine that the first CR of the at least one first resource group is greater than a CR threshold; and trigger resource reselection to determine a new first resource group.

[0249] In some embodiments, the CR threshold is a CR threshold corresponding to the first resource group.

[0250] In some embodiments, the CR threshold is determined by at least one of the following: a priority of the SL-PRS to be transmitted; and a CBR interval in which the first CBR of the first resource group is located.

[0251] It should be noted that the modules included in the terminal are not limited to the modules described in the above embodiments, and may also include other modules, such as a storage module, a display module, etc.

[0252] For the device embodiment, since it basically corresponds to the method embodiment, the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described above is merely illustrative, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art can understand and implement it without paying any creative work.

[0253] An embodiment of the present disclosure also proposes a communication device, comprising: one or more processors; a memory coupled to the processor, the memory storing executable instructions, wherein when the executable instructions are executed by the processor, the processor calls the executable instructions so that the communication device executes the channel busy rate measurement method described in the above optional embodiment.

[0254] An embodiment of the present disclosure further provides a communication system, comprising a plurality of terminals, wherein the terminals are configured to implement the channel busy rate measurement method described in the above optional embodiment.

[0255] An embodiment of the present disclosure further provides a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the channel busy rate measurement method described in the above optional embodiment.

[0256] 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 a terminal 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.

[0257] 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.

[0258] 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.

[0259] Figure 5 is a schematic diagram of the structure of a communication device 5100 proposed in an embodiment of the present disclosure. Communication device 5100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 5100 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.

[0260] As shown in Figure 5, the communication device 5100 includes one or more processors 5101. The processor 5101 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 communication protocols 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. The processor 5101 is used to call instructions to enable the communication device 5100 to perform any of the above methods.

[0261] In some embodiments, the communication device 5100 further includes one or more memories 5102 for storing instructions. Optionally, all or part of the memories 5102 may be located outside the communication device 5100.

[0262] In some embodiments, the communication device 5100 further includes one or more transceivers 5103. When the communication device 5100 includes one or more transceivers 5103, the communication steps such as sending and receiving in the above method are performed by the transceiver 5103, and the other steps are performed by the processor 5101.

[0263] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0264] Optionally, the communication device 5100 further includes one or more interface circuits 5104, which are connected to the memory 5102. The interface circuits 5104 may be configured to receive signals from the memory 5102 or other devices, and may be configured to send signals to the memory 5102 or other devices. For example, the interface circuits 5104 may read instructions stored in the memory 5102 and send the instructions to the processor 5101.

[0265] The communication device 5100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 5100 described in the present disclosure is not limited thereto, and the structure of the communication device 5100 may not be limited by FIG. 5 . 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.

[0266] FIG6 is a schematic diagram of the structure of a chip 6200 according to an embodiment of the present disclosure. If the communication device 5100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 6200 shown in FIG6 , but the present disclosure is not limited thereto.

[0267] The chip 6200 includes one or more processors 6201, and the processor 6201 is used to call instructions so that the chip 6200 executes any of the above methods.

[0268] In some embodiments, the chip 6200 further includes one or more interface circuits 6202, which are connected to the memory 6203. The interface circuit 6202 can be used to receive signals from the memory 6203 or other devices, and can be used to send signals to the memory.

[0269] 6203 or other devices to send signals. For example, the interface circuit 6202 can read the instructions stored in the memory 6203 and send the instructions to the processor 6201. Optionally, the terms interface circuit, interface, transceiver pin, transceiver, etc. can be used interchangeably.

[0270] In some embodiments, the chip 6200 further includes one or more memories 6203 for storing instructions. Alternatively, all or part of the memories 6203 may be located outside the chip 6200.

[0271] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 5100, causes the communication device 5100 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 transient storage medium.

[0272] The present disclosure also provides a program product, which, when executed by the communication device 5100, enables the communication device 5100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0273] 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 channel busy rate measurement method, characterized in that: The method comprises: The terminal determines at least one first resource group in a first resource pool; wherein the first resource pool includes resources for transmitting a side link positioning reference signal SL-PRS, and the first resource group includes at least one resource in the first resource pool; The terminal performs a first measurement on the at least one first resource group.

2. The method according to claim 1, characterized in that The first measurement includes at least one of the following: Channel busy rate CBR measurement; Channel occupancy rate CR measurement.

3. The method according to claim 1 or 2, characterized in that: The determining of at least one first resource group in the first resource pool comprises one of the following: The higher layer of the terminal determines at least one first resource group in the first resource pool; The terminal determines at least one first resource group in the first resource pool according to the configuration information of the first resource pool sent by the network device.

4. The method according to any one of claims 1 to 3, characterized in that: The configuration information of the first resource pool includes: resource identifiers of SL-PRS resources included in the first resource group.

5. The method according to any one of claims 2 to 4, characterized in that: The terminal performs CBR measurement on the at least one first resource group, including: The terminal determines the number of first resources in the SL-PRS resources included in each of the first resource groups; wherein the first resources are SL-PRS resources occupied by other terminals; The terminal determines a first CBR of each of the first resource groups based on a ratio of the quantity of the first resources to the total amount of SL-RPS resources in the first resource group.

6. The method according to any one of claims 2 to 4, characterized in that: The first resource group also includes a subchannel occupied by a physical side link control channel PSCCH; The terminal performs CBR measurement on at least one of the first resource groups, including: The terminal determines the number of first subchannels in the subchannels occupied by the PSCCH included in each of the first resource groups; wherein the first subchannels are subchannels occupied by the PSCCH of other terminals; The terminal determines a first CBR for each of the first resource groups based on a ratio of the number of the first subchannels to the total number of subchannels occupied by the PSCCH in the first resource group.

7. The method according to any one of claims 2 to 4, characterized in that: The first resource group also includes a subchannel occupied by a PSCCH, The terminal performs CBR measurement on at least one of the first resource groups, including: The terminal determines, in each of the first resource groups, the number of first resources in the SL-PRS resources and the number of first subchannels in the subchannels occupied by the PSCCH in each of the first resource groups; The terminal determines the first CBR of each first resource group based on the ratio of the number of the first resources to the total amount of SL-RPS resources in the first resource group and the ratio of the number of the first subchannels to the total amount of subchannels occupied by PSCCH in the first resource group.

8. The method according to claim 5 or 7, characterized in that: The first resource is an SL-PRS resource whose received signal strength in a first time window exceeds a first threshold; wherein the first time window is a CBR measurement window.

9. The method according to claim 6 or 7, characterized in that: The first subchannel is a subchannel occupied by a PUCCH whose received signal strength exceeds a second threshold within a first time window; wherein the first time window is a CBR measurement window.

10. The method according to any one of claims 3 to 9, characterized in that: The method further comprises: Determine a second resource group from the at least one first resource group; wherein the second resource group is a first resource group whose corresponding first CBR is less than or equal to a CBR threshold; The resources in the second resource group are indicated to a physical layer of the terminal for transmitting a SL PRS.

11. The method according to any one of claim 10, characterized in that: The method further comprises: If a plurality of second resource groups are determined, resources in at least one second resource group among the plurality of second resource groups are indicated to a physical layer of the terminal for transmitting the SL PRS.

12. The method according to claim 10, characterized in that The CBR threshold is a CBR threshold corresponding to the first resource group.

13. The method according to claim 10, characterized in that The CBR threshold is determined by one of the following methods: Instructed by a higher layer of the terminal; The acquired configuration information or pre-configuration information of the first resource group is carried in it.

14. The method according to claim 10, characterized in that The CBR threshold includes a CBR threshold corresponding to each priority.

15. The method according to any one of claims 3 to 14, characterized in that: The terminal performs CR measurement on at least one of the first resource groups, including: The terminal determines the number of second resources in the SL-PRS resources included in each of the first resource groups; wherein the second resources are SL-PRS resources occupied by the terminal; The terminal determines a first CR for each of the first resource groups based on a ratio of the amount of the second resources to the total amount of SL-PRS resources in the first resource group.

16. The method according to any one of claims 3 to 14, characterized in that: The first resource group also includes a subchannel occupied by a PSCCH; The terminal performs CR measurement on at least one of the first resource groups, including: The terminal determines the number of second subchannels in the subchannels occupied by the PSCCH included in each of the first resource groups; wherein the second subchannels are subchannels occupied by the PSCCH of the terminal; The terminal determines a first CR for each of the first resource groups based on a ratio of the number of the second subchannels to the total number of subchannels occupied by the PSCCH in the first resource group.

17. The method according to any one of claims 3 to 14, characterized in that: The first resource group also includes a subchannel occupied by a PSCCH; The terminal performs CR measurement on at least one of the first resource groups, including: The terminal determines the number of second resources in the SL-PRS resources included in each of the first resource groups and the number of second subchannels in the subchannels occupied by the PSCCH included in each of the first resource groups; The terminal determines a first CR for each first resource group based on a ratio of the second subchannel number to the total number of subchannels occupied by PSCCH in the first resource group and a ratio of the second subchannel number to the total number of subchannels occupied by PSCCH in the first resource group.

18. The method according to claim 15 or 17, characterized in that The second resources include SL-PRS resources occupied by the terminal in the first sub-window of the second time window and SL-PRS resources authorized to the terminal in the second sub-window of the second time window; wherein, the second time window is a CR measurement window, the first sub-window is the CR measurement window before the current moment in the CR measurement window, and the second sub-window is the CR measurement window starting from the current moment in the CR measurement window.

19. The method according to claim 16 or 17, characterized in that The second subchannel includes a subchannel occupied by the PSCCH of the terminal in the first subwindow of the second time window and a subchannel occupied by the PSCCH authorized to the terminal in the second subwindow of the second time window; wherein the second time window is a CR measurement window, the first subwindow is a CR measurement window before the current moment in the CR measurement window, and the second subwindow is a CR measurement window starting from the current moment in the CR measurement window.

20. The method according to any one of claims 16 to 19, characterized in that: The method further comprises: Determining, by the terminal, that a first CR of the at least one first resource group is greater than a CR threshold; The terminal triggers resource reselection to determine a new first resource group.

21. The method according to claim 20, characterized in that The CR threshold is a CR threshold corresponding to the first resource group.

22. The method according to claim 20 or 21, characterized in that The CR threshold is determined by at least one of the following: The priority of the SL-PRS to be transmitted; The CBR interval where the first CBR of the first resource group is located.

23. A channel busy rate measurement device, characterized in that: include: The processing module determines at least one first resource group in a first resource pool; wherein the first resource pool includes resources for transmitting a side link positioning reference signal SL-PRS, and the first resource group includes at least one resource in the first resource pool; The transceiver module is used to perform a first measurement on the at least one first resource group.

24. A terminal, characterized in that: include: one or more processors; A memory coupled to the processor, wherein the memory stores executable instructions, wherein when the executable instructions are executed by the processor, the terminal executes the channel busy rate measurement method according to any one of claims 1 to 18.

25. A communication device, characterized in that: include: one or more processors; A memory coupled to the processor, wherein the memory stores executable instructions, wherein when the executable instructions are executed by the processor, the processor is used to call instructions so that the communication device executes the channel busy rate measurement method according to any one of claims 1-22.

26. A communication system, characterized in that: The system comprises a plurality of terminals, wherein the terminals are configured to implement the channel busy rate measurement method according to any one of claims 1 to 22.

27. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is enabled to execute the channel busy rate measurement method according to any one of claims 1 to 22.

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