WO2025065614A1 - Channel busy ratio measurement method, terminal, communication device, and storage medium - Google Patents

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

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

When performing sidelink (SL) positioning, the upper layer can select the SL-PRS resource identifier (SL-PRS ID) from the sidelink reference signal (SL-PRS) resource pool to be notified to the physical layer for use, but it is necessary to solve how the upper layer determines the SL-PRS ID to send to the physical layer.

Summary of the invention

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

According to the first aspect of an embodiment of the present disclosure, a channel busy rate measurement method is proposed, the method comprising: a 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.

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, used to perform a first measurement on the at least one first resource group.

According to the 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.

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.

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.

According to a sixth aspect of an embodiment of the present disclosure, a storage medium is proposed, wherein the storage medium stores instructions, and 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.

According to an embodiment of the present disclosure, the first resource pool is grouped, the first resource group is determined from the resource groups obtained by the grouping, and the resources in the first resource group are subjected to a first measurement. It can be seen that compared with the first measurement of the resources in the resource pool, the first measurement of the resources in the resource group can measure the channel busy rate within a relatively smaller granularity to determine the resource utilization in each first resource group, and then the SL-PRS ID sent to the physical layer can be determined in units of resource groups.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 creative work.

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

FIG2 is an interactive schematic diagram of a channel busy rate measurement method according to an embodiment of the present disclosure.

FIG3 is a schematic flow chart of a channel busy rate measurement method according to an embodiment of the present disclosure.

FIG. 4 is a schematic block diagram showing a device structure of a terminal according to an embodiment of the present disclosure.

FIG5 is a schematic diagram of the structure of a communication device proposed in an embodiment of the present disclosure.

FIG. 6 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure.

DETAILED DESCRIPTION

The embodiments of the present disclosure provide a channel busy rate measurement method, a terminal, a communication device, and a storage medium.

In the 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.

In the above embodiment, the first resource pool is grouped, the first resource group is determined from the resource groups obtained by the grouping, and the resources in the first resource group are subjected to the first measurement. It can be seen that compared with the first measurement of the resources in the resource pool, the first measurement of the resources in the resource group can perform channel busy rate measurement within a relatively smaller granularity to determine the resource utilization in each first resource group, and then the SL-PRS ID sent to the physical layer can be determined in units of resource groups.

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

In combination with some embodiments of the first aspect, in some embodiments, the first measurement includes at least one of the following: channel busy rate CBR measurement; channel occupancy rate CR measurement.

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.

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.

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 a SL-PRS resource included in the first resource group.

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 of the first resource groups; wherein the first resources are SL-PRS resources occupied by other terminals; 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.

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.

In combination with some embodiments of the first aspect. 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 of the first resource groups and the number of first subchannels in the subchannels occupied by 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 PSCCH in the first resource group.

In combination with some embodiments of the first aspect, in some embodiments, 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.

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.

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; indicating the resources in the second resource group to the physical layer of the terminal for transmitting the SL PRS.

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

In combination with some embodiments of the first aspect, in some embodiments, the CBR threshold is a CBR threshold corresponding to the first resource group.

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.

In combination with some embodiments of the first aspect, in some embodiments, the CBR threshold comprises a CBR threshold corresponding to each priority.

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: 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.

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 subchannels in the subchannels occupied by the 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 subchannel 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. CR.

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 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 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 PSCCH in the first resource group and the ratio of the number of the second subchannels to the total number of subchannels occupied by PSCCH in the first resource group.

In combination with some embodiments of the first aspect. In some embodiments, the second resource includes the SL-PRS resource occupied by the terminal in the first sub-window of the second time window and the SL-PRS resource 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 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.

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.

In combination with some embodiments of the first aspect, in some embodiments, the method further includes: the terminal determining that the 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.

In combination with some embodiments of the first aspect, in some embodiments, the CR threshold is a CR threshold corresponding to the first resource group.

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.

In the second aspect, a channel busy rate measurement device is proposed, which includes: 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, used to perform a first measurement on the at least one first resource group.

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

In a fourth aspect, an embodiment of the present disclosure proposes a communication device, wherein the communication device includes: 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 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.

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.

In a sixth aspect, an embodiment of the present disclosure proposes a storage medium, wherein the storage medium 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.

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.

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.

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 in the corresponding methods, which will not be repeated here.

The embodiments of the present disclosure provide a channel busy rate measurement method, a terminal, a communication device, and a storage medium. In some embodiments, the terms such as information sending method, information receiving method, information processing method, and communication method can be replaced with each other, the terms such as terminal, network device, information processing device, and communication device can be replaced with each other, and the terms such as information processing system and communication system can be replaced with each other.

The embodiments of the present disclosure are not exhaustive, but are only 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.

In each embodiment of the present disclosure, unless otherwise specified or there is a logical conflict, the terms and/or descriptions between the embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form a new embodiment based on their internal logical relationships.

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.

In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "one", "an", "the", "above", "said", "foregoing", "this", etc., may mean "one and only one", or may mean "one or more", "at least one", etc.

For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article can be understood as a singular expression or a plural expression.

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

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

In some embodiments, "at least one of A and B", "A and/or B", "A in one case, B in another case", "in response to one case A, in response to another case B", etc., may include the following technical solutions according to the situation: in some embodiments, A (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); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.

In some embodiments, the recording method of "A or B" may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). When there are more branches such as A, B, C, etc., the above is also similar.

The prefixes such as "first" and "second" in the embodiments of the present disclosure are only for distinguishing 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.

For example, if the description object is "field", the ordinal number before "field" in "first field" and "second field" does not limit the position or order between "fields", "first" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of "first field" and "second field". For another example, if the description object is "level", the ordinal number before "level" in "first level" and "second level" does not limit the priority between "levels". For another example, the number of description objects is not limited by ordinal numbers and can be one or more. For example, "first device" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", "first device" and "second device" can be the same device or different devices, and their types can be the same or different. For another example, if the description object is "information", "first information" and "second information" can be the same information or different information, and their contents can be the same or different.

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.

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.

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 lower than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "no more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

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.

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

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

In some embodiments, the terms "access network device (AN device), "radio access network device (RAN device)", "base station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", "node", "access point (access point)", "transmission point (TP)", "reception point (RP)", "transmission/reception point (TRP)", "panel", "antenna panel (antenna panel)", "antenna array (antenna array)", "cell", "macro cell", "small cell (small cell)", "femto cell (femto cell)", "pico cell (pico cell)", "sector (sector)", "cell group (cell)", "serving cell", "carrier (carrier)", "component carrier (component carrier)", "bandwidth part (bandwidth part (BWP))" and so on can be used interchangeably.

In some embodiments, “terminal”, “terminal device”, “user equipment (UE)”, “user terminal”, “mobile station (MS)”, “mobile terminal (MT)”, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit The terms such as 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. may be used interchangeably.

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 access network device, the core network device, or the network device and the communication between the terminals is replaced by the communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, 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.

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 also be configured to have a structure that has all or part of the functions of the terminal.

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

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

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

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

As shown in FIG. 1 , a communication system 100 includes a terminal 101 and a terminal 102 .

In some embodiments, terminal 101 and terminal 102 include, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), and at least one of a wireless terminal device in a smart home (smart home), but are not limited to these.

In some embodiments, the communication system may also include network equipment, and the network equipment includes at least one of the following: access network equipment, core network equipment (core network device).

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 Node B (eNB), a next generation evolved Node B (ng-eNB), a next generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (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.

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

In some embodiments, the technical solution of the present disclosure may be applicable to the Open RAN architecture. In this case, the interfaces between access network devices or within access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

In some embodiments, the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit). The CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.

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. A person of ordinary skill in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or part of the subject, but are not limited thereto. The subjects shown in FIG1 are examples, and the communication system may include all or part of the subjects in FIG1 , or may include other subjects other than FIG1 , and the number and form of the subjects are arbitrary, and the subjects may be physical or virtual, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, and may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.

The embodiments of the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, the fourth generation mobile communication system (4G), the fifth 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 ... The present invention relates to wireless communication systems such as LTE, Wi-Fi (X), 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) network, Device to Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle to Everything (V2X), systems using other communication methods, and next-generation systems expanded based on them. In addition, a combination of multiple systems (for example, a combination of LTE or LTE-A with 5G, etc.) may also be applied.

FIG2 is an interactive schematic diagram of a channel busy rate measurement method according to an embodiment of the present disclosure.

As shown in FIG2 , the channel busy rate measurement method includes:

Step S201: Terminal 101 performs a first measurement.

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. 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.

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

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

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.

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.

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.

In some embodiments, the terminal may determine at least one first group by a higher layer of the terminal determining at least one first resource group in the first resource pool. For example, at least one first resource group may be determined by a higher layer indication.

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 acquired configuration information of the first resource pool.

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

In some embodiments, the resource identifier of the SL-PRS resource included in each first resource group may be determined through a higher-level indication.

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.

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 of the first resource groups; wherein the first resources are SL-PRS resources occupied by other terminals; 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.

In some embodiments, the first resource group also includes subchannels 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 PSCCH included in each first resource group; wherein the first subchannel is a subchannel occupied by 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 PSCCH in the first resource group.

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 of the first resource groups and the number of first subchannels in the subchannels occupied by 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 PSCCH in the first resource group.

In some embodiments, the first resource is a 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.

In some embodiments, the first subchannel receives a signal strength exceeding a second threshold within a first time window. The subchannel occupied by the PUCCH of the value; wherein the first time window is the CBR measurement window.

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.

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

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

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

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

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

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.

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.

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 of the first resource groups and the number of second subchannels in the subchannels occupied by 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 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.

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.

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.

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.

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

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 respectively.

In some embodiments, the CR threshold is determined by at least one of: 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.

Step S201, terminal 101 and terminal 102 transmit SL-PRS.

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.

The communication method involved in the embodiment 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 step S201+S202 may be implemented as an independent embodiment, but is not limited thereto.

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

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

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

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

In some embodiments, in side link (SideLink, SL) positioning (Positioning), for a resource pool (resource pool) used to transmit a side link reference signal (SideLink Positioning Reference Signal, SL-PRS), after triggering resource selection, the higher layer may notify the physical layer of the SL-PRS resource identifier (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.

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

In some embodiments, the SL-PRS ID sent to the physical layer can be determined by performing a first measurement on the resources in the resource pool. The first measurement can include a channel busy ratio (CBR) measurement; a channel occupancy ratio (CR) measurement, etc. 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. For this reason, it is necessary to consider adopting a corresponding enhancement solution.

In a first aspect, an embodiment of the present disclosure proposes a channel busy rate measurement method. Fig. 3 is a schematic flow chart of a channel busy rate measurement method according to an embodiment of the present disclosure. The channel busy rate measurement method shown in this embodiment can be executed by a terminal.

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

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.

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

In some embodiments, a first resource for transmitting a side link positioning reference signal SL-PRS may be provided. Pool, the first resource pool includes resources for transmitting SL-PRS, and the resources for transmitting SL-PRS can be called SL-PRS resources.

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

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.

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 acquired configuration information of the first resource pool.

In some embodiments, the SL-PRS resources may include any one resource or a combination of multiple resources such as 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, frames, etc., and may be allocated to PRS signals according to a certain scheduling mechanism; the frequency domain resources may be resources that divide frequencies into different frequency bands and may be allocated to PRS signals according to certain rules and strategies.

In some embodiments, the SL-PRS resource may be represented as a resource that can be used in each time domain interval, and the time domain interval may be a symbol, a time slot, a subframe, a frame, etc. For simplicity, in the following embodiments, the SL-PRS resource is represented as a SL-PRS resource that can be used in a time slot as an example for illustration. The SL-PRS resource may consist of a starting symbol of the resource, a symbol length, a comb size, and a comb offset.

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

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.

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 are 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 are 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.

The several 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, and the like.

In some embodiments, at least one resource group may be determined as a first resource group from among several resource groups obtained after grouping the first resource pool, so as to perform a first measurement on resources in the first resource group as a measurement range. The at least one first resource group determined from among several resource groups may include all resource groups, or only one resource group or part of the resource groups.

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.

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 in the measurement window.

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 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.

For example, the first resource pool P includes 8 SL-PRS resources {R1, R2, ..., R8}, and the first resource pool is grouped to obtain three resource groups G1, G2, and G3, wherein G1 = {R1, R2, R3}, which means that R1, R2, R3 can be used in one time slot, G2 = {R4, R5, R6, R7}, which means that R4, R5, R6, R7 can be used in one time slot, and G3 = {R7, R8}, which means that R7 and R8 can be used in one time slot. G1 and G2 can be determined as the first resource group, and the first measurement can be performed on G1 and G2 respectively.

The first measurement is a measurement used to measure the utilization rate 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.

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

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.

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.

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.

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 parameters when transmitting SL-PRS can be controlled based on the measurement results of the CBR measurement and/or CR measurement, or, corresponding threshold values 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.

In some embodiments, after determining at least one first resource group and performing CRB measurement and/or CR measurement on each first resource group, a 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 a resource identifier of the SL-PRS resource in the first resource group.

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.

It should be noted that the embodiment shown in FIG. 3 may be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific implementation may be selected as needed and the present disclosure is not limited thereto.

In the above embodiment, the first resource pool is grouped, the first resource group is determined from the resource groups obtained by the grouping, and the resources in the first resource group are first measured. It can be seen that compared with the first measurement of the resources in the resource pool, the first measurement of the resources in the resource group can measure the channel busy rate within a relatively smaller granularity to determine the resource utilization in each first resource group, and then the SL-PRS ID sent to the physical layer can be determined in units of resource groups.

In some embodiments, a 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 acquired indication information, and configuration information of each first resource group, wherein the configuration information includes a resource identifier of the SL-PRS resource included in the first resource group; or at least one first resource group can be selected from a number of resource groups obtained by grouping based on a preset selection strategy to determine the resource identifier of the SL-PRS resource included in each first resource group.

The indication information for indicating the first resource group may be derived from a high-level indication and/or an information element (IE) of the first resource pool, etc. The method of selecting at least one first resource group from a plurality of resource groups obtained by grouping based on the selection strategy 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 the time domain resources, frequency domain resources and/or priority corresponding to the SL-PRS resources in each resource group, and if determined to be the first resource group, determining the resource identifier contained in the resource group as the resource identifier contained in the first resource group.

In some embodiments, the configuration information of the first resource group can be obtained based on the high-level indication and/or the IE of the first resource pool, and the configuration information of the first resource group can include the resource identifier of the SL-PRS resource included in the first resource group. For example, the configuration information of the first resource groups G1 and G2 received can be expressed as G1={R1, R2, R3}, G2={R4, R5, R6, R7}. Among them, R1-R7 are the resource identifiers of the SL-PRS resources.

In some embodiments, after determining the first resource group, if the first measurement includes CBR measurement, CBR measurement can be performed on each first resource group to obtain a first CBR of each first resource group. CBR measurement on the first resource group is used to measure the ratio of resource occupation and busyness in the resources of the first resource group.

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.

In some embodiments, the terminal can determine 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 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-RPS resources in the first resource group.

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 PSCCH included in each first resource group; wherein the first subchannel is a subchannel occupied by 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 PSCCH in the first resource group.

In some embodiments, the terminal can determine 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.

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

The first time slot number a can be set according to actual needs, for example, a=100 or 100·2 ^μ , where μ is a system corresponding to a subcarrier spacing (SCS), and a larger subcarrier spacing corresponds to a larger μ.

In some embodiments, the first resource is a 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.

When performing CBR measurement on each first resource group, the CBR measurement may be performed at each time point within the determined first time window. The signal strength of each SL-PRS resource is measured in the slot, and the 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, it is considered that the SL-PRS resource is occupied by other terminals and is a first resource; if the corresponding signal strength is less than the first threshold value, it is considered that the SL-PRS resource is not occupied by other terminals and is not a first resource. Based on the comparison result of the signal strength corresponding to each SL-PRS resource and the first threshold value, the number of first resources in the first resource group can be determined.

In one embodiment, the signal strength measurement may be a 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, and if the first RSSI is greater than or equal to the first threshold value, it is considered that the SL-PRS resource is occupied by other terminals and is the first resource; if the first RSSI is less than the first threshold value, it is considered that the SL-PRS resource is not occupied by other terminals and is not the first resource. Based on the comparison result of the first RSSI corresponding to each SL-PRS resource and the first threshold value, the number of first resources in the first resource group can be determined.

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

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

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.

When performing CBR measurement on each first resource group, the signal strength of each subchannel occupied by the PSCCH can be measured within the determined first time window, and the corresponding signal strength of each subchannel occupied by the PSCCH can be compared with the second threshold value preset as the threshold value; if the corresponding signal strength is greater than or equal to the second threshold value, it is considered that the subchannel occupied by the PSCCH is occupied by other terminals and is the first subchannel; if the corresponding signal strength is less than the first threshold value, it is considered that the subchannel occupied by the PSCCH is not occupied by other terminals and is not the 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.

In one embodiment, the signal strength measurement can be a signal strength indication (Received 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 as 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. Based on the comparison result of the first RSSI corresponding to the sub-channel occupied by each PSCCH and the second threshold value, it can be determined The number of first subchannels in the first resource group.

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.

In some embodiments, the terminal may determine, by signal strength measurement, 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; and determine 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. For example, the first CBR may be obtained by weighted summing the two ratios.

In some embodiments, after determining the first resource group, if the first measurement includes CR measurement, CR measurement can be performed on each first resource group to obtain a first CR of each first resource group. CR measurement of the first resource group is used to measure the proportion of resources in the first resource group that are effectively occupied.

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 subchannel occupied by the PSCCH included in the first resource group.

In some embodiments, the terminal can determine 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.

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 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 the PSCCH in the first resource group.

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.

In some embodiments, when performing CR measurement on the first resource group, a second time window can be first determined as a CR measurement window (CR measurement window) for performing CR measurement, and then a second resource number 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 a second subchannel number of subchannels occupied by the PSCCH of the current terminal in the subchannels occupied by the PSCCH included in the first resource group is determined.

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

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

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.

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.

The 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.

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.

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 are added to obtain the number of second subchannels.

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

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, respectively; and 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 and the ratio of the number of the second subchannels to the total amount of subchannels occupied by the PSCCH in the first resource group. For example, the first CBR can be obtained by weighted summing the two ratios.

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, so that the channel busy rate situation can be understood more accurately within the scope of each first resource group, and the SL-PRS ID sent to the physical layer can be determined based on the resource group.

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

In some embodiments, after performing CBR measurement on at least one determined first resource group and obtaining the 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, it is considered that the first resource group can be used 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, it is considered that the first resource group cannot be used 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 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 may include indicating the resource identifier of the SL-PRS resources contained in the second resource group. To the physical layer of the terminal.

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.

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 are less than or equal to B0, and B3 is greater than B0; then G1 and/or G2 can be determined as the selected resource group. If G1 is taken 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 taken 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 taken 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.

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

In some embodiments, a corresponding CBR threshold may be configured for each first resource group. For example, the first resource groups G1 and G2 may be represented as G1={R1, R2, R3; B01} and 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.

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 the 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, and B1, B2, and B3 are compared with B20, respectively, so that B1 and B2 are less than or equal to B20, and B3 is greater than B20; then G1 and/or G2 may be determined as the selected resource group, and the resource identifier of the SL-PRS resource therein may be indicated to the physical layer for resource exclusion.

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

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 include at least one of the following: the number of SL-PRS resources in each time slot; comb size (comb-size), the number of symbols, etc. For example, the maximum number of SL-PRS resources in each time slot may be limited; the maximum comb size of an SL PRS resource in each time slot; the maximum number of OFDM symbols of an SL-PRS resource in each time slot, etc. Further, the maximum SL-PRS transmission power and the maximum number of SL-PRS transmissions or retransmissions may also be limited.

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

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

In some embodiments, after measuring the CR of at least one determined first resource group, the terminal may require that the first CR obtained by measurement is less than or equal to the CR threshold for each first resource group used. If the first CR corresponding to the first resource group is less than or equal to the CR threshold, it means 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 means that the first resource group does not meet the current transmission requirements.

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.

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

In some embodiments, if the terminal determines that the first CR of the at least one first resource group is greater than the CR threshold, the terminal may also give up the current resource selection.

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

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.

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 with 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.

For example, G1 and G2 are determined as the first resource group, where G1 = {R1, R2, R3}, G2 = {R4, R5, R6, R7}, the target priority k = 5, and the CR threshold C0 (5) corresponding to the target priority 5 are determined. CR measurement is performed on G1 and G2. In the second time window [n-b, n+c], it is determined that the SL-PRS resources occupied by the terminal in the first sub-window [n-b, n-1] and with a priority not less than 5 are R3 and R6, and the SL-PRS resources authorized to the terminal in the second sub-window [n, n+c] and with a priority not less than 5 are R7. Then it can be considered that the SL-PRS resource occupied by the terminal in G1 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 occupied by the terminal in G2 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)≤C0(5) of G1 and the CR(i≤k5)>C0(5) of G2, it is determined that resource reselection can be triggered for G2.

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

In some embodiments, the configured CR threshold may also be related to the CBR range (CBR range), and corresponding CR thresholds may be set based on different CBR ranges. For example, the first resource groups G1 and G2 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 }, 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 priority of the first resource group G1. C12 is the CR threshold corresponding to the priority level 0 to 3 and the CBR range (B1 to B2) in the first resource group G1, C13 is the CR threshold corresponding to the priority level 0 to 3 and the CBR range (B2 to B3) in the first resource group G1, C14 is the CR threshold corresponding to the priority level 4 to 7 and the CBR range (B2 to B3) in the first resource group G1, C21 is the CR threshold corresponding to the priority level 0 to 3 and the CBR range (B1 to B2) in the first resource group G2, C22 is the CR threshold corresponding to the priority level 4 to 7 and the CBR range (B1 to B2) in the first resource group G2, C23 is the CR threshold corresponding to the priority level 0 to 3 and the CBR range (B2 to B3) in the first resource group G2, and C24 is the CR threshold corresponding to the priority level 4 to 7 and the CBR range (B2 to B3) in the first resource group G2.

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.

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

In some embodiments, terms such as "moment", "time point", "time", and "time position" can be interchangeable, and terms such as "duration", "period", "time window", "window", and "time" can be interchangeable.

In some embodiments, terms such as "component carrier (CC)", "cell", "frequency carrier", and "carrier frequency" can be used interchangeably.

In some embodiments, "obtain", "obtain", "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 high levels, obtaining by self-processing, autonomous implementation, etc.

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

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

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.

FIG4 is a schematic block diagram of a device structure of a terminal 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 .

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.

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

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

In some embodiments, the determining of at least one first resource group in the first resource pool includes one of the following: a high layer of the terminal determines at least one first resource group in the first resource pool; and determining 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.

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.

In some embodiments, the transceiver module 402 is used to determine 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 processing module 401 is used to determine 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-RPS resources in the first resource group.

In some embodiments, the first resource group also includes subchannels occupied by a physical side link control channel PSCCH; the transceiver module 402 is used to 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 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 subchannels to the total number of subchannels occupied by the PSCCH in the first resource group.

In some embodiments, the first resource group also includes subchannels 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 of the first resource groups and the number of first subchannels in the subchannels occupied by PSCCH included in each of the first resource groups; the processing module 401 is used to determine 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-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.

In some embodiments, the first resource is a 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.

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.

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.

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

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

In some embodiments, the CBR threshold is determined by one of the following methods: indicated by a high level; The first resource group is carried in the configuration information or pre-configuration information.

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

In some embodiments, the transceiver module 402 is used to determine 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 the processing module 401 is used to determine 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.

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 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 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 subchannels to the total number of subchannels occupied by PSCCH in the first resource group.

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 of the first resource groups and the number of second subchannels in the subchannels occupied by PSCCH included in each of the first resource groups; the processing module 401 is used to determine the first CR of each of the first resource groups 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.

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.

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.

In some embodiments, the processing module 401 is used 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.

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

In some embodiments, the CR threshold is determined by at least one of: 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.

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.

For the device embodiment, since it basically corresponds to the method embodiment, the relevant parts refer to the partial description of the method embodiment. The device embodiment described above is only schematic, 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 may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.

The embodiment of the present disclosure also provides a communication device, including: one or more processors; A memory on the processor, wherein the memory stores 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.

An embodiment of the present disclosure further proposes 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.

An embodiment of the present disclosure further proposes 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.

The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods. For another example, another device is also proposed, including a unit or module for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

It should be understood that the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation. In addition, the units or modules in the device can 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 instructions are stored in the memory. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the 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 inside the device or a memory outside the device. Alternatively, the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits. The hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in the form of hardware circuits.

In the disclosed embodiments, the processor is a circuit with signal processing capability. In one implementation, the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as 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 to implement the hardware circuit configuration may 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 ASIC, such as Neural Network Processing Unit (NPU), Tensor Processing Unit (TPU), Deep Learning Processing Unit (DPU), etc.

FIG5 is a schematic diagram of the structure of a communication device 5100 proposed in an embodiment of the present disclosure. The communication device 5100 may be a network device (e.g., an access network device, a core network device, etc.), or a terminal (e.g., a user device, etc.), or 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. The communication device 5100 may be used to implement the above For the methods described in the method embodiments, please refer to the description in the above method embodiments for details.

As shown in FIG5 , the communication device 5100 includes one or more processors 5101. The processor 5101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and the communication data, and the central processing unit may 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 a program, and process the data of the program. The processor 5101 is used to call instructions so that the communication device 5100 executes any of the above methods.

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

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 executed by the transceiver 5103, and the other steps are executed by the processor 5101.

In some embodiments, the transceiver may include a receiver and a transmitter, and the receiver and the transmitter may be separate or integrated. Optionally, the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

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

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 and 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, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

Fig. 6 is a schematic diagram of the structure of a chip 6200 provided in an embodiment of the present disclosure. In the case where the communication device 5100 may be a chip or a chip system, reference may be made to the schematic diagram of the structure of the chip 6200 shown in Fig. 6, but the present disclosure is not limited thereto.

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.

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 the interface circuit 6202 can be used to send signals to the memory.

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 such as interface circuit, interface, transceiver pin, transceiver, etc. can be replaced with each other.

In some embodiments, the chip 6200 further includes one or more memories 6203 for storing instructions. Optionally, all or part of the memory 6203 may be outside the chip 6200.

The present disclosure also provides a storage medium, on which instructions are stored. When the instructions are executed on the communication device 5100, the communication device 5100 executes any of the above methods. Optionally, the storage medium is an electronic device. 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.

The present disclosure also proposes a program product, which, when executed by the communication device 5100, enables the communication device 5100 to execute any of the above methods. Optionally, the program product is a computer program product.

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

Claims (27)

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. The method according to claim 1, wherein the first measurement comprises at least one of the following: Channel busy rate CBR measurement; Channel occupancy rate CR measurement. 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. The method according to any one of claims 1-3 is characterized in that the configuration information of the first resource pool includes: a resource identifier of the SL-PRS resource included in the first resource group. 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, comprising: 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. 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. 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. The method according to claim 5 or 7 is characterized in that the first resource is an SL-PRS resource whose received signal strength exceeds a first threshold in a first time window; wherein the first time window is a CBR measurement window. The method according to claim 6 or 7 is 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. 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 the physical layer of the terminal for transmitting SL PRS. The method according to any one of claim 10, characterized in that the method further comprises: If multiple second resource groups are determined, resources in at least one of the multiple second resource groups are indicated to the physical layer of the terminal for transmitting SL PRS. The method according to claim 10, characterized in that the CBR threshold is a CBR threshold corresponding to the first resource group. 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. The method according to claim 10, characterized in that the CBR threshold comprises a CBR threshold corresponding to each priority. 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, comprising: 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. 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. 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. The method according to claim 15 or 17 is characterized in that 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. The method according to claim 16 or 17 is 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. 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. The method according to claim 20 is characterized in that the CR threshold is a CR threshold corresponding to the first resource group. 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. A channel busy rate measuring device, characterized by comprising: 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. A terminal, characterized by comprising: 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. A communication device, comprising: 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. A communication system, characterized in that it 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. A storage medium storing instructions, characterized in that when the instructions are executed on a communication device, the communication device executes the channel busy rate measurement method described in any one of claims 1-22.