Method for scheduling sidelink positioning reference signal resource, and communication apparatus

Abstract

A method for scheduling a sidelink positioning reference signal resource, and a communication apparatus, which can implement semi-static scheduling of sidelink positioning reference signal resources, thereby facilitating saving on signaling overheads. The method can comprise: receiving downlink control information from a network device, wherein the downlink control information comprises a first field and a second field, the first field is used for determining a sidelink positioning reference signal resource, and the second field is used for instructing the activation or deactivation of the sidelink positioning reference signal resource; in response to the value of the second field, activating the sidelink positioning reference signal resource; and in response to the value of the second field, deactivating the sidelink positioning reference signal resource.

Description

Scheduling method and communication device for side positioning reference signal resources

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 28, 2023, with application number 202311294512.9 and application name “Scheduling method and communication device for side positioning reference signal resources”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a scheduling method and a communication device for sideways positioning reference signal resources. Background Art

[0003] Sidelink (SL) is a near-field communication technology that allows direct information connection between terminal devices through a PC5 interface. For application scenarios such as vehicle to everything (V2X) and industrial internet of things (IIoT), the 3rd generation partnership project (3GPP) has proposed SL positioning, which can be achieved by transmitting sidelink positioning reference signals. For example, two terminal devices can achieve mutual positioning, such as ranging or angle measurement, by sending sidelink positioning reference signals. The sidelink positioning reference signal can also be referred to as the sidelink positioning reference signal.

[0004] The resources used to transmit the sidelink positioning reference signal may be referred to as sidelink positioning reference signal resources. How to implement semi-static scheduling of sidelink positioning reference signal resources is a current research hotspot.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a method and a communication device for scheduling sidelink positioning reference signal resources, which can implement semi-static scheduling of sidelink positioning reference signal resources, thereby saving signaling overhead.

[0007] In a first aspect, embodiments of the present application provide a method for scheduling sidelink positioning reference signal resources. The method may be executed by a terminal device, or by a device compatible with the terminal device, such as a processor, a chip, or a chip system. The method may include: receiving downlink control information from a network device, the downlink control information including a first field and a second field; wherein the first field is used to determine a sidelink positioning reference signal resource, and the second field is used to indicate activation or deactivation of the sidelink positioning reference signal resource; activating the sidelink positioning reference signal resource in response to a value of the second field; and deactivating the sidelink positioning reference signal resource in response to a value of the second field.

[0008] It can be seen that, in combination with the first field and the second field in the downlink control information, the terminal device can activate or deactivate the sidelink positioning reference signal resources, thereby realizing semi-static scheduling of the sidelink positioning reference signal resources, which is beneficial to saving signaling overhead.

[0009] In a possible implementation, the second field is an activation indication field, and the field length of the activation indication field is 1 bit;

[0010] The value of the activation indication field is the first value and the sideline positioning reference signal resource is in an inactivated state, and the activation indication field is used to indicate activation of the sideline positioning reference signal resource;

[0011] The value of the activation indication field is the second value and the above-mentioned sideline positioning reference signal resource is in an activated state. The activation indication field is used to indicate deactivation of the above-mentioned sideline positioning reference signal resource; wherein the first value is the same as or different from the second value.

[0012] That is, the activation or deactivation of the sidelink positioning reference signal resource is indicated by the value of the 1-bit activation indication field. The sidelink positioning reference signal resource is determined based on the first field in the downlink control information. Thus, the terminal device can activate or deactivate the sidelink positioning reference signal resource based on the value of this 1-bit activation indication field. In this way, not only can semi-static scheduling of the sidelink positioning reference signal resource be achieved, but activation or deactivation indication can also be achieved with minimal signaling overhead.

[0013] In another possible implementation, the second field is an activation indication field, and the field length of the activation indication field is 2 bits;

[0014] The value of the activation indication field is the third value, which is used to indicate activation of the above-mentioned sideline positioning reference signal resource; the value of the activation indication field is the fourth value, which is used to indicate deactivation of the above-mentioned sideline positioning reference signal resource.

[0015] Optionally, the value of the activation indication field is a third value and the sideline positioning reference signal resource is in an inactivated state, and the activation indication field is used to indicate activation of the sideline positioning reference signal resource;

[0016] The value of the activation indication field is the fourth value and the above-mentioned sideline positioning reference signal resource is in an activated state, and the activation indication field is used to indicate deactivation of the above-mentioned sideline positioning reference signal resource; wherein the third value is different from the fourth value.

[0017] That is, the activation or deactivation of the sidelink positioning reference signal resource is indicated by the value of the 2-bit activation indication field. The sidelink positioning reference signal resource is determined based on the first field in the downlink control information, so that the terminal device can activate or deactivate the sidelink positioning reference signal resource based on the value of this 2-bit activation indication field. This can achieve semi-static scheduling of the sidelink positioning reference signal resource. When indicating activation or deactivation, the third and fourth values ​​of these 2 bits are used, and other values ​​can be used to indicate other functions. Therefore, the value of these 2 bits can indicate multiple functions, which helps to save signaling overhead.

[0018] In another possible implementation, the second field is a time domain scheduling field;

[0019] The value of the time domain scheduling field is the fifth value, which is used to indicate activation of the above-mentioned sideline positioning reference signal resource; the value of the time domain scheduling field is the sixth value, which is used to indicate deactivation of the above-mentioned sideline positioning reference signal resource.

[0020] Optionally, the value of the time domain scheduling field is the fifth value and the sidelink positioning reference signal resource is in an inactivated state, and the time domain scheduling field is used to indicate activation of the sidelink positioning reference signal resource;

[0021] The value of the time domain scheduling field is the sixth value and the above-mentioned sidelink positioning reference signal resource is in an activated state. The time domain scheduling field is used to indicate deactivation of the above-mentioned sidelink positioning reference signal resource; wherein the fifth value is different from the sixth value.

[0022] Typically, the time domain scheduling field is used to indicate the time domain information of the sideline positioning reference signal resource, such as time slot information. However, in the present application, the time domain scheduling field is also used to indicate the activation or deactivation of the sideline positioning reference signal resource, which is determined based on the first field in the downlink control information. That is, by multiplexing the value of the time domain scheduling field to indicate the activation or deactivation of the sideline positioning reference signal resource, the terminal device can activate the sideline positioning reference signal resource based on the fifth value of the time domain scheduling field; or deactivate the sideline positioning reference signal resource based on the sixth value of the time domain scheduling field. In this way, not only can the semi-static scheduling of the sideline positioning reference signal resource be achieved, but also the signaling overhead can be saved. There is no need to add an additional field in the downlink control information to indicate activation or deactivation, and the change to the downlink control information is small.

[0023] Optionally, the above method also includes: receiving a first parameter and / or a second parameter from a network device, the first parameter is used to indicate the above fifth value, and the second parameter is used to indicate the above sixth value. That is, the network device configures the first parameter and / or the second parameter for the terminal device, the first parameter is used to indicate that when the value of the time domain scheduling field is the fifth value, the side positioning reference signal resource is activated; the second parameter is used to indicate that when the value of the time domain scheduling field is the sixth value, the side positioning reference signal resource is deactivated. By configuring the first parameter and / or the second parameter for the terminal device through the network device, the terminal device can determine which value of the time domain scheduling field can activate the side positioning reference signal resource, and / or which value can deactivate the side positioning reference signal resource. It can be seen that the network device can flexibly configure the first parameter and / or the second parameter.

[0024] Optionally, the fifth and sixth values ​​are predefined, for example, by a protocol. That is, when the value of the fixed time domain scheduling field is the fifth value, it indicates activation of the sidelink positioning reference signal resource; and when the value of the fixed time domain scheduling field is the sixth value, it indicates deactivation of the sidelink positioning reference signal resource. This can save signaling and radio resources compared to a network device configuring the first and / or second parameters for a terminal device.

[0025] In another possible implementation, the second field is a resource indication field;

[0026] The value of the resource indication field is the seventh value or the first group of values, which is used to indicate the activation of the above-mentioned side positioning reference signal resources; the value of the resource indication field is the eighth value or the second group of values, which is used to indicate the deactivation of the above-mentioned side positioning reference signal resources.

[0027] Optionally, the value of the resource indication field is the seventh value or the first group of values ​​and the sidelink positioning reference signal resource is in an inactivated state, and the resource indication field is used to indicate activation of the sidelink positioning reference signal resource;

[0028] The value of the resource indication field is the eighth value or the second group of values ​​and the above-mentioned side positioning reference signal resource is in an activated state. The resource indication field is used to indicate the deactivation of the above-mentioned side positioning reference signal resource; wherein the seventh value is different from the eighth value, the first group of values ​​includes one or more values, and the second group of values ​​includes one or more values.

[0029] Typically, the resource indication field is used to indicate the index of the scheduled sidelink positioning reference signal resource. However, in the present application, the resource indication field is also used to indicate the activation or deactivation of the sidelink positioning reference signal resource. That is, by multiplexing the value of the resource indication field to indicate the activation or deactivation of the sidelink positioning reference signal resource, the terminal device can activate or deactivate the sidelink positioning reference signal resource based on the value of the resource indication field. In this way, not only can the semi-static scheduling of the sidelink positioning reference signal resource be achieved, but also the signaling overhead can be saved. There is no need to add an additional field in the downlink control information to indicate activation or deactivation, and the change to the downlink control information is small.

[0030] Optionally, the i-th sidelink positioning reference signal resource index indicated by the resource indication field is the ninth value or the third group of values, specifically used to indicate activation of the above-mentioned sidelink positioning reference signal resource; the i-th sidelink positioning reference signal resource index indicated by the resource indication field is the tenth value or the fourth group of values, specifically used to indicate deactivation of the above-mentioned sidelink positioning reference signal resource; wherein i is an integer greater than 1, the third group of values ​​includes one or more values, and the fourth group of values ​​includes one or more values. It can be understood that when multiple sidelink positioning reference signal resources are semi-statically scheduled, the i-th sidelink positioning reference signal resource index defaults to the same as the first sidelink positioning reference signal resource index, but the i-th sidelink positioning reference signal resource index indicated by the resource indication field is used to indicate activation or deactivation of the sidelink positioning reference signal resource.

[0031] Optionally, the above method also includes: receiving a third parameter and / or a fourth parameter from the network device, the third parameter is used to indicate the above ninth value or the third group of values, and the fourth parameter is used to indicate the above tenth value or the fourth group of values. That is, the network device configures the third parameter and / or the fourth parameter for the terminal device, the third parameter is used to indicate that when the value of the resource indication field is the ninth value or the third group of values, the side positioning reference signal resource is activated; the fourth parameter is used to indicate that when the value of the resource indication field is the tenth value or the fourth group of values, the side positioning reference signal resource is deactivated. The network device configures the third parameter and / or the fourth parameter for the terminal device, so that the terminal device can determine which value of the resource indication field can activate the side positioning reference signal resource, and / or which value can deactivate the side positioning reference signal resource. It can be seen that the network device can flexibly configure the third parameter and / or the fourth parameter.

[0032] Optionally, the ninth and tenth values ​​are predefined, for example, by a protocol. Alternatively, the third and fourth groups of values ​​are predefined. That is, when the value of the fixed resource indication field is the ninth value or the third group of values, it indicates activation of the sidelink positioning reference signal resource; when the value of the fixed resource indication field is the tenth value or the fourth group of values, it indicates deactivation of the sidelink positioning reference signal resource. Compared to a network device configuring the third and / or fourth parameters for a terminal device, this can save signaling and radio resources.

[0033] In one possible implementation, the first field is a resource indication field, which is used to indicate the index of the sideline positioning reference signal resource, that is, to indicate the sideline positioning reference signal resource, so that the terminal device can determine the sideline positioning reference signal resource based on the value of the resource indication field.

[0034] Optionally, the downlink control information further includes a configuration index field, which is used to indicate a configuration index, based on which the transmission period and / or maximum number of transmissions of the sidelink positioning reference signal resource can be determined. The configuration index field is used to indicate a configuration index, based on which semi-static configuration information can be determined, including the transmission period and / or maximum number of transmissions.

[0035] Optionally, the method further includes: receiving a first radio resource control (RRC) signaling from a network device, the first RRC signaling being used to configure a transmission period and / or a maximum number of transmissions of a sidelink positioning reference signal resource. It is understood that the first RRC signaling is used to configure semi-static configuration information, the semi-static configuration information including the transmission period and / or the maximum number of transmissions.

[0036] In another possible implementation, the first field is a configuration index field, which is used to indicate a configuration index associated with a sidelink positioning reference signal resource. That is, the sidelink positioning reference signal resource associated with the configuration index, i.e., the sidelink positioning reference signal resource for semi-persistent scheduling, can be determined based on the configuration index field. Determining the sidelink positioning reference signal resource based on the configuration index in the downlink control information reduces the bit length of the downlink control information compared to determining the sidelink positioning reference signal resource based on the resource indication field in the downlink control information.

[0037] Optionally, the configuration index field is also used to determine the transmission period and / or maximum number of transmissions of the sideline positioning reference signal resource. The terminal device can also determine the transmission period and / or maximum number of transmissions of the sideline positioning reference signal resource based on the configuration index indicated by the configuration index field.

[0038] Optionally, the method further includes: receiving second RRC signaling from the network device, the second RRC signaling being used to configure at least one of a transmission period, a maximum number of transmissions, and a sidelink positioning reference signal resource associated with a configuration index. It is understandable that the second RRC signaling is used to configure semi-static configuration information, the semi-static configuration information including at least one of a transmission period, a maximum number of transmissions, a configuration index, and a sidelink positioning reference signal resource associated with the configuration index.

[0039] In a second aspect, embodiments of the present application provide a method for scheduling sidelink positioning reference signal resources. The method may be executed by a network device, or by a device compatible with the network device, such as a processor, chip, or chip system. The method may include: sending downlink control information to a terminal device, the downlink control information including a first field and a second field; wherein the first field is used to determine the sidelink positioning reference signal resource; and the second field is used to indicate activation or deactivation of the positioning reference signal resource.

[0040] It can be seen that the network device instructs the terminal device to activate or deactivate the sidelink positioning reference signal resources through the first field and the second field in the downlink control information, thereby realizing semi-static scheduling of the sidelink positioning reference signal resources, which is beneficial to saving signaling overhead.

[0041] In a possible implementation, the second field is an activation indication field, and the field length of the activation indication field is 1 bit;

[0042] The value of the activation indication field is the first value and the sideline positioning reference signal resource is in an inactivated state, and the activation indication field is used to indicate activation of the sideline positioning reference signal resource;

[0043] The value of the activation indication field is the second value and the above-mentioned sideline positioning reference signal resource is in an activated state. The activation indication field is used to indicate deactivation of the above-mentioned sideline positioning reference signal resource; wherein the first value is the same as or different from the second value.

[0044] That is, the activation or deactivation of the sidelink positioning reference signal resource is indicated by the value of the 1-bit activation indication field. The sidelink positioning reference signal resource is determined based on the first field in the downlink control information. Thus, the terminal device can activate or deactivate the sidelink positioning reference signal resource based on the value of this 1-bit activation indication field. In this way, not only can semi-static scheduling of the sidelink positioning reference signal resource be achieved, but activation or deactivation indication can also be achieved with minimal signaling overhead.

[0045] In another possible implementation, the second field is an activation indication field, and the field length of the activation indication field is 2 bits;

[0046] The value of the activation indication field is the third value, which is used to indicate activation of the above-mentioned sideline positioning reference signal resource; the value of the activation indication field is the fourth value, which is used to indicate deactivation of the above-mentioned sideline positioning reference signal resource.

[0047] Optionally, the value of the activation indication field is a third value and the sideline positioning reference signal resource is in an inactivated state, and the activation indication field is used to indicate activation of the sideline positioning reference signal resource;

[0048] The value of the activation indication field is the fourth value and the above-mentioned sideline positioning reference signal resource is in an activated state, and the activation indication field is used to indicate deactivation of the above-mentioned sideline positioning reference signal resource; wherein the third value is different from the fourth value.

[0049] That is, the activation or deactivation of the sidelink positioning reference signal resource is indicated by the value of the 2-bit activation indication field. The sidelink positioning reference signal resource is determined based on the first field in the downlink control information, so that the terminal device can activate or deactivate the sidelink positioning reference signal resource based on the value of this 2-bit activation indication field. This can achieve semi-static scheduling of the sidelink positioning reference signal resource. When indicating activation or deactivation, the third and fourth values ​​of these 2 bits are used, and other values ​​can be used to indicate other functions. Therefore, the value of these 2 bits can indicate multiple functions, which helps to save signaling overhead.

[0050] In another possible implementation, the second field is a time domain scheduling field;

[0051] The value of the time domain scheduling field is the fifth value, which is used to indicate activation of the above-mentioned sideline positioning reference signal resource; the value of the time domain scheduling field is the sixth value, which is used to indicate deactivation of the above-mentioned sideline positioning reference signal resource.

[0052] Optionally, the value of the time domain scheduling field is the fifth value and the sidelink positioning reference signal resource is in an inactivated state, and the time domain scheduling field is used to indicate activation of the sidelink positioning reference signal resource;

[0053] The value of the time domain scheduling field is the sixth value and the above-mentioned sidelink positioning reference signal resource is in an activated state. The time domain scheduling field is used to indicate deactivation of the above-mentioned sidelink positioning reference signal resource; wherein the fifth value is different from the sixth value.

[0054] Typically, the time domain scheduling field is used to indicate the time domain information of the sideline positioning reference signal resource, such as time slot information. However, in the present application, the time domain scheduling field is also used to indicate the activation or deactivation of the sideline positioning reference signal resource, which is determined based on the first field in the downlink control information. That is, by multiplexing the value of the time domain scheduling field to indicate the activation or deactivation of the sideline positioning reference signal resource, the terminal device can activate the sideline positioning reference signal resource based on the fifth value of the time domain scheduling field; or deactivate the sideline positioning reference signal resource based on the sixth value of the time domain scheduling field. In this way, not only can the semi-static scheduling of the sideline positioning reference signal resource be achieved, but also the signaling overhead can be saved. There is no need to add an additional field in the downlink control information to indicate activation or deactivation, and the change to the downlink control information is small.

[0055] Optionally, the above method further includes: sending a first parameter and / or a second parameter to the terminal device, the first parameter being used to indicate the fifth value, and the second parameter being used to indicate the sixth value. That is, the network device configures the first parameter and / or the second parameter for the terminal device, the first parameter being used to indicate that when the value of the time domain scheduling field is the fifth value, the side positioning reference signal resource is activated; and the second parameter being used to indicate that when the value of the time domain scheduling field is the sixth value, the side positioning reference signal resource is deactivated. By configuring the first parameter and / or the second parameter for the terminal device through the network device, the terminal device can determine which value of the time domain scheduling field can activate the side positioning reference signal resource, and / or which value can deactivate the side positioning reference signal resource. It can be seen that the network device can flexibly configure the first parameter and / or the second parameter.

[0056] Optionally, the fifth and sixth values ​​are predefined, for example, by a protocol. That is, when the value of the fixed time domain scheduling field is the fifth value, it indicates activation of the sidelink positioning reference signal resource; and when the value of the fixed time domain scheduling field is the sixth value, it indicates deactivation of the sidelink positioning reference signal resource. This can save signaling and radio resources compared to a network device configuring the first and / or second parameters for a terminal device.

[0057] In another possible implementation, the second field is a resource indication field;

[0058] The value of the resource indication field is the seventh value or the first group of values, which is used to indicate the activation of the above-mentioned side positioning reference signal resources; the value of the resource indication field is the eighth value or the second group of values, which is used to indicate the deactivation of the above-mentioned side positioning reference signal resources.

[0059] Optionally, the value of the resource indication field is the seventh value or the first group of values ​​and the sidelink positioning reference signal resource is in an inactivated state, and the resource indication field is used to indicate activation of the sidelink positioning reference signal resource;

[0060] The value of the resource indication field is the eighth value or the second group of values ​​and the above-mentioned side positioning reference signal resource is in an activated state. The resource indication field is used to indicate the deactivation of the above-mentioned side positioning reference signal resource; wherein the seventh value is different from the eighth value, the first group of values ​​includes one or more values, and the second group of values ​​includes one or more values.

[0061] Typically, the resource indication field is used to indicate the index of the scheduled sidelink positioning reference signal resource, such as the index of the semi-statically scheduled sidelink positioning reference signal resource. However, in the present application, the resource indication field is also used to indicate the activation or deactivation of the sidelink positioning reference signal resource. That is, by multiplexing the value of the resource indication field to indicate the activation or deactivation of the sidelink positioning reference signal resource, the terminal device can activate or deactivate the sidelink positioning reference signal resource based on the value of the resource indication field. In this way, not only can the semi-static scheduling of the sidelink positioning reference signal resource be achieved, but also the signaling overhead can be saved. There is no need to add an additional field in the downlink control information to indicate activation or deactivation, and the change to the downlink control information is small.

[0062] Optionally, the i-th sidelink positioning reference signal resource index indicated by the resource indication field is the ninth value, specifically used to indicate activation of the above-mentioned sidelink positioning reference signal resource; the i-th sidelink positioning reference signal resource index indicated by the resource indication field is the tenth value, specifically used to indicate deactivation of the above-mentioned sidelink positioning reference signal resource; wherein i is an integer greater than 1, the third group of values ​​includes one or more values, and the fourth group of values ​​includes one or more values. It can be understood that when multiple sidelink positioning reference signal resources are semi-statically scheduled, the i-th sidelink positioning reference signal resource index defaults to the same as the first sidelink positioning reference signal resource index, but the i-th sidelink positioning reference signal resource index indicated by the resource indication field is used to indicate activation or deactivation of the sidelink positioning reference signal resource.

[0063] Optionally, the above method further includes: sending a third parameter and / or a fourth parameter to the terminal device, the third parameter being used to indicate the above ninth value or the third group of values, and the fourth parameter being used to indicate the above tenth value or the third group of values. That is, the network device configures the third parameter and / or the fourth parameter for the terminal device, the third parameter being used to indicate that when the value of the resource indication field is the ninth value or the third group of values, the side positioning reference signal resource is activated; and the fourth parameter being used to indicate that when the value of the resource indication field is the tenth value or the fourth group of values, the side positioning reference signal resource is deactivated. By configuring the third parameter and / or the fourth parameter for the terminal device through the network device, the terminal device can determine which value of the resource indication field can activate the side positioning reference signal resource, and / or which value can deactivate the side positioning reference signal resource. It can be seen that the network device can flexibly configure the third parameter and / or the fourth parameter.

[0064] Optionally, the ninth and tenth values ​​are predefined, for example, by a protocol. Alternatively, the third and fourth groups of values ​​are predefined. That is, when the value of the fixed resource indication field is the ninth value or the third group of values, it indicates activation of the sidelink positioning reference signal resource; when the value of the fixed resource indication field is the tenth value or the fourth group of values, it indicates deactivation of the sidelink positioning reference signal resource. Compared to a network device configuring the third and / or fourth parameters for a terminal device, this can save signaling and radio resources.

[0065] In one possible implementation, the first field is a resource indication field, which is used to indicate the index of the sideline positioning reference signal resource, that is, to indicate the sideline positioning reference signal resource, so that the terminal device can determine the sideline positioning reference signal resource based on the value of the resource indication field.

[0066] Optionally, the downlink control information further includes a configuration index field, which is used to indicate a configuration index, based on which the transmission period and / or maximum number of transmissions of the sidelink positioning reference signal resource can be determined. The configuration index field is used to indicate a configuration index, based on which semi-static configuration information can be determined, including the transmission period and / or maximum number of transmissions.

[0067] Optionally, the method further includes: sending a first RRC signaling to the terminal device, where the first RRC signaling is used to configure a transmission period and / or a maximum number of transmissions of a sidelink positioning reference signal resource. It is understandable that the first RRC signaling is used to configure semi-static configuration information, where the semi-static configuration information includes the transmission period and / or the maximum number of transmissions.

[0068] In another possible implementation, the first field is a configuration index field, which is used to indicate a configuration index associated with a sidelink positioning reference signal resource. That is, the sidelink positioning reference signal resource associated with the configuration index, i.e., the sidelink positioning reference signal resource for semi-persistent scheduling, can be determined based on the configuration index field. Determining the sidelink positioning reference signal resource based on the configuration index in the downlink control information reduces the bit length of the downlink control information compared to determining the sidelink positioning reference signal resource based on the resource indication field in the downlink control information.

[0069] Optionally, the configuration index field is also used to determine the transmission period and / or maximum number of transmissions of the sideline positioning reference signal resource. The terminal device can also determine the transmission period and / or maximum number of transmissions of the sideline positioning reference signal resource based on the configuration index indicated by the configuration index field.

[0070] Optionally, the method further includes: sending a second RRC signaling to the terminal device, where the second RRC signaling is used to configure at least one of a transmission period, a maximum number of transmissions, and a sidelink positioning reference signal resource associated with a configuration index. It is understandable that the second RRC signaling is used to configure semi-static configuration information, where the semi-static configuration information includes at least one of a transmission period, a maximum number of transmissions, a configuration index, and a sidelink positioning reference signal resource associated with the configuration index.

[0071] In a third aspect, an embodiment of the present application provides a communication device, which may be a terminal device, a device in a terminal device, or a device that can be used in conjunction with a terminal device. The communication device may also be a chip system. The communication device may execute the method described in the first aspect. The functions of the communication device may be implemented by hardware or by hardware executing corresponding software implementations. The hardware or software includes one or more units or modules corresponding to the above functions. The units or modules may be software and / or hardware. The operations and beneficial effects performed by the communication device may refer to the method and beneficial effects described in the first aspect above.

[0072] In a fourth aspect, an embodiment of the present application provides a communication device, which may be a network device, a device in a network device, or a device that can be used in conjunction with a network device. The communication device may also be a chip system. The communication device may execute the method described in the second aspect. The functions of the communication device may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions. The units or modules may be software and / or hardware. The operations and beneficial effects performed by the communication device may refer to the method and beneficial effects described in the second aspect above.

[0073] In a fifth aspect, an embodiment of the present application provides a communication device, the communication device including a processor, the processor being used to execute the method as described in the first aspect or the method as described in the second aspect.

[0074] In a sixth aspect, an embodiment of the present application provides a communication device, which includes a processor, the processor is coupled to a memory, and the memory is used to store programs or instructions. When the program or instruction is executed by the processor, the communication device executes the method described in the first aspect or the second aspect.

[0075] In one possible implementation, the communication device further includes a memory. Optionally, the processor and the memory are integrated together. Optionally, the memory and the processor are independently provided.

[0076] In the seventh aspect, an embodiment of the present application provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method described in the first aspect or the second aspect through a logic circuit or executing code instructions.

[0077] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed by a communication device, the method described in the first aspect or the second aspect is implemented.

[0078] In a ninth aspect, an embodiment of the present application provides a computer program product comprising instructions, which, when a communication device reads and executes the instructions, enables the communication device to perform a method as described in any one of the first and second aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] FIG1 is a schematic diagram of an SL resource pool;

[0080] FIG2 is a schematic diagram of a network architecture using an embodiment of the present application;

[0081] FIG3 is a schematic diagram of another network architecture to which an embodiment of the present application is applied;

[0082] FIG4 is a flow chart of a method for scheduling SLPRS resources according to an embodiment of the present application;

[0083] FIG5 is a schematic diagram of data block transmission;

[0084] FIG6 is a schematic diagram of SLPRS transmission;

[0085] FIG7 is a schematic diagram of the configuration of RRC signaling;

[0086] FIG8 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0087] FIG9 is a schematic structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0088] In this application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit differences. "And / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0089] It should be understood that, in this application, "at least one" refers to one or more, and "a plurality" refers to two or more. Furthermore, in this application, "equal to" can be used in conjunction with "greater than" or "less than." When "equal to" and "greater than" are used together, the technical solution of "greater than" is adopted; when "equal to" and "less than" are used together, the technical solution of "less than" is adopted.

[0090] In this application, "sending information to... (e.g., a terminal device)" can be understood as the destination of the information being the terminal device. This can include sending information to the terminal device directly or indirectly. "Receiving information from... (e.g., a terminal device)" or "receiving information from... (e.g., a terminal device)" can be understood as the source of the information being the terminal device, which can include receiving information from the terminal device directly or indirectly. The information may be processed as necessary between the source and destination of the information, such as format changes, but the destination can understand the valid information from the source. Similar expressions in this application can be understood similarly and will not be elaborated on here.

[0091] The following first explains the relevant names or terms involved in this application to facilitate understanding by those skilled in the art.

[0092] 1. Terminal Equipment

[0093] Terminal devices can also be called user equipment (UE), mobile station (MS), mobile terminal (MT), etc. They are devices used to provide voice or data connectivity to users, or they can be IoT devices. For example, terminal devices include handheld devices with wireless connectivity, in-vehicle devices, etc. Currently, terminal devices can include: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MIDs), wearable devices (such as smart watches, smart bracelets, pedometers, etc.), vehicle-mounted devices (such as cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed trains, etc.), satellite terminals, virtual reality (VR) devices, augmented reality (AR) devices, smart point-of-sale (POS) machines, customer-premises equipment (CPE), wireless terminals in industrial control, smart home devices (such as refrigerators, televisions, air conditioners, electricity meters, etc.), intelligent robots, robotic arms, workshop equipment, wireless terminals in unmanned driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and flying devices (such as intelligent robots, hot air balloons, drones, airplanes). Terminal devices can also be other devices with terminal functions, for example, terminal devices can also be devices that function as terminals in D2D communication.

[0094] 2. Network Equipment

[0095] A network device is a node in a radio access network (RAN), and can also be referred to as an access network device or a RAN node (or device). A network device is used to help terminal devices achieve wireless access. In one possible scenario, a network device can be a base station, an evolved NodeB (eNodeB), a transmitting and receiving point (TRP), a transmitting point (TP), a next-generation NodeB (gNB), a next-generation base station in a 6G system, a base station in a future mobile communication system, a satellite, an integrated access and backhaul (IAB) node, a mobile switching center, or an access network device in a non-terrestrial network (NTN) communication system, that is, it can be deployed on a high-altitude platform or satellite. A network device can be a macro base station, a micro base station or an indoor station, a relay node or a donor node, or a wireless controller in a cloud radio access network (CRAN) scenario. A network device can also be a device that acts as a base station in device-to-device (D2D) communication, Internet of Vehicles (IoV) communication, drone communication, or machine communication. Alternatively, a network device can be a server, wearable device, vehicle, or vehicle-mounted device. For example, a network device in vehicle-to-everything (V2X) technology can be a roadside unit (RSU).

[0096] All or part of the functions of the network device in this application may also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform). The network device in this application may also be a logical node, logical module, or software that can implement all or part of the network device functions.

[0097] In another possible scenario, multiple network devices collaborate to assist the terminal in achieving wireless access, and different network devices respectively implement part of the functions of the base station. For example, the network device can be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU can be set separately, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). It can be understood that the network device can be a CU node, a DU node, or a device including a CU node and a DU node. In addition, the CU can be divided into a network device in the access network RAN, or the CU can be divided into a network device in the core network CN, which is not limited here.

[0098] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in an open access network (open RAN, O-RAN or ORAN) system, CU may also be called O-CU (open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, this application takes CU, CU-CP, CU-UP, DU and RU as examples for description. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0099] 3. Side Positioning Reference Signal

[0100] The positioning reference signal (PRS) is a known signal provided by the transmitting end to the receiving end for positioning. In the embodiment of the present application, a side positioning reference signal is used to describe the reference signal transmitted between terminal devices, or between a terminal device and a roadside unit (RSU), for realizing the positioning function. The positioning function can be realized by transmitting the side positioning reference signal between terminal devices. The full name of the side positioning reference signal is the sidelink positioning reference signal (SL PRS), and SLPRS can also be described as SL-PRS or SPRS, etc. It should be noted that with the evolution of the standard, the positioning reference signal between terminal devices may adopt other names. For the sake of convenience of description, the embodiment of the present application uses SLPRS to describe the side positioning reference signal, and uses SLPRS resources to describe the side positioning reference signal resources. SLPRS resources are used to transmit SLPRS.

[0101] 4. Resource Pool

[0102] A resource pool is broadly defined as a collection of resources. In this application, a resource pool refers to a sidelink (SL) resource pool, and an SL resource pool can be understood as a collection of SL resources.

[0103] For example, please refer to the schematic diagram of the SL resource pool shown in Figure 1. In Figure 1, in a carrier bandwidth (carrier bandwidth), part of the bandwidth (bandwidth part, BWP) is allocated to the SL for use, and the BWP allocated to the SL for use can be called SLBWP. The time-frequency resources corresponding to the SLBWP can be further divided into multiple SL resource pools, and each SL resource pool can be configured with independent channels, such as the physical sidelink control channel (PSCCH) or the physical sidelink shared channel (PSSCH) and other channels. Each SL resource pool performs independent perception and resource allocation. The frequency domain resources in the SL resource pool can be further divided into sub-channels with finer granularity, and resource allocation and data transmission are based on sub-channels, for example, allocating one or multiple consecutive sub-channels, or performing data transmission on one or multiple consecutive sub-channels. A sub-channel can include multiple physical resource blocks (PRBs). A sub-channel can also be used to represent specific frequency domain location information.

[0104] The embodiments of the present application relate to an SLPRS-specific resource pool, which may be the above-mentioned SL resource pool. However, the resources in the SL resource pool are used to transmit SLPRS and PSCCH, but not to transmit PSSCH.

[0105] For SL resources, the scheduling method can be dynamic scheduling, semi-static scheduling or periodic scheduling. Among them, the dynamic scheduling method is implemented through downlink control information (DCI) indication; the periodic scheduling method is implemented through RRC signaling pre-configuration; the semi-static scheduling method is implemented through RRC signaling pre-configuration combined with DCI indication. Although SL resources support semi-static scheduling, how to implement semi-static scheduling of SLPRS resources in the SLPRS dedicated resource pool is currently a hot topic of research. In addition, whether the current semi-static scheduling of SL resources is applicable to SLPRS resources has not yet been clearly concluded.

[0106] In view of this, embodiments of the present application provide a scheduling method and communication device for SLPRS resources. The scheduling method refers to a semi-persistent scheduling method, specifically a semi-persistent scheduling method in an SLPRS-dedicated resource pool. Embodiments of the present application clarify which field in the DCI indicates activation or deactivation of SLPRS resources for semi-persistent scheduling, thereby enabling semi-persistent scheduling of SLPRS resources in the SLPRS-dedicated resource pool, which helps save signaling overhead.

[0107] The network architecture of the embodiment of the present application is described below.

[0108] Please refer to Figure 2, which is a schematic diagram of a network architecture applying an embodiment of the present application. The network architecture shown in Figure 2 may include a network device 201, a terminal device 202, and a terminal device 203. The device form and number of devices shown in Figure 2 are for example only and do not constitute a limitation on the embodiments of the present application. Figure 2 takes the example where both the terminal device 202 and the terminal device 203 are within the coverage of the network device 201. It may also be that the terminal device 202 is within the coverage of the network device 201, while the terminal device 203 is not within the coverage of the network device 201; or, the terminal device 203 is within the coverage of the network device 201, while the terminal device 202 is not within the coverage of the network device 201. That is to say, at least one terminal device is within the coverage of the network device 201. The terminal devices within the coverage of the network device 201 can receive signaling such as DCI and / or RRC signaling.

[0109] For example, under the control of network device 201, terminal device 202 can send SLPRS to terminal device 203; after receiving SLPRS, terminal device 203 can measure the distance or angle by measuring SLPRS, thereby obtaining a measurement result; terminal device 203 can send the measurement result to network device 201.

[0110] For example, under the control of network device 201, terminal device 203 can send SLPRS to terminal device 202; terminal device 202 receives SLPRS and can measure distance or angle by measuring SLPRS to obtain measurement results; terminal device 202 can send the measurement results to network device 201.

[0111] Optionally, the network architecture shown in Figure 2 may further include a location management function (LMF) 204. The LMF is a network element, module, or component in the new radio (NR) core network, primarily used to provide positioning functions. Network device 201 may send the measurement results it receives to LMF 204, which may analyze the measurement results. Network device 201 may directly feed back the measurement results to LMF 204, or may feed back the measurement results to LMF 204 through other core network elements.

[0112] Please refer to Figure 3, which is a schematic diagram of another network architecture applying an embodiment of the present application. The network architecture shown in Figure 3 may include a UE 301, a next generation-radio access network (NG-RAN) 302, an access and mobility management function (AMF) 303, and a LMF 304. The network architecture shown in Figure 3 can be understood as a positioning network architecture based on NG-RAN.

[0113] NG-RAN 302 may include 4G sites (i.e., ng-eNBs) and 5G sites (i.e., gNBs) of the 5G core network. An ng-eNB is a device or apparatus deployed in a radio access network that meets 4G standards and provides wireless communication capabilities for UEs. An ng-eNB can be a base station or access point in various forms. An ng-eNB can also be a Transmission Relay Protocol (TRP). A gNB is a device or apparatus deployed in a radio access network that meets 5G standards and provides wireless communication capabilities for UEs. A gNB can be a base station or access point in various forms. A gNB can also be a TRP or a transmission measurement function (TMF).

[0114] AMF 303 is a network element, module or component in the NR core network, mainly used to provide access management functions.

[0115] AMF 303 receives a positioning service request for UE 301, which can be sent by other network elements in the NR core network or by the data network. AMF 303 sends the received positioning service request to LMF 304. LMF 304 processes the received positioning service request and initiates the positioning procedure for UE 301. NG-RAN 302 is responsible for sending SLPRS to UE 301 and / or receiving SLPRS from UE 301, and obtaining measurement results based on SLPRS. The measurement results can then be sent to LMF 304 via AMF 303.

[0116] Based on the network architecture shown in Figure 2 or Figure 3, the SLPRS resource scheduling method provided in the embodiment of the present application is described in detail below. For the convenience of description, the terminal device is taken as an example of UE.

[0117] Please refer to FIG4 , which is a flowchart of a method for scheduling SLPRS resources provided in an embodiment of the present application. The method may include but is not limited to the following steps:

[0118] 401. A network device sends a DCI to a UE. Accordingly, the UE receives the DCI from the network device. The DCI includes a first field and a second field. The first field is used to determine an SLPRS resource, and the second field is used to indicate activation or deactivation of the SLPRS resource.

[0119] It is understood that the first field is used to determine the SLPRS resource, that is, the pre-configured SLPRS resource. The pre-configured SLPRS resource refers to the SLPRS resource configured by the network device for the UE through RRC signaling. The second field is used to indicate activation or deactivation of the SLPRS resource.

[0120] The value of the second field is specifically used to indicate that when the SLPRS resource is in an inactive state, the SLPRS resource is activated; or, to indicate that when the SLPRS resource is in an activated state, the SLPRS resource is deactivated.

[0121] Optionally, the first field may be a resource indication field or a configuration index field. The resource indication field may be an SLPRS resource indication field, for example, it may be an SLPRSresourceindicator field in the DCI, which is used to indicate the index of the SLPRS resource. The configuration index field may be, for example, the Configurationindex field in the DCI, which is used to indicate the configuration index, that is, the configuration index of the semi-static configuration information, which is configured by RRC signaling. The configuration index can be associated with the SLPRS resource, and the association relationship can be configured in the semi-static configuration information. Among them, semi-static can also describe semi-periodic, semi-continuous or semi-continuous, etc., indicating that periodic transmission is possible after activation until it stops. The conditions for stopping include: the network device sends a deactivation indication; or, the maximum number of transmissions is reached; or, certain rules are met, such as stopping according to a preset probability.

[0122] Optionally, the second field may be an activation indication field, a time domain scheduling field, or a resource indication field. The activation indication field may be a newly added field in the DCI, which is used to indicate activation or deactivation of the SLPRS resource determined based on the first field. The activation indication field may be, for example, an SLPRS activation (SLPRSactivation) field. The time domain scheduling field may be a time domain resource scheduling field, such as the Timeresourceassignment field in the DCI, which is generally used to indicate the index of the scheduled SLPRS resource, and in the embodiment of the present application, certain values ​​of this field are reused to indicate activation or deactivation of the SLPRS resource determined based on the first field. The resource indication field may be an SLPRS resource indication field, such as the SLPRSresourceindication field in the DCI, which is generally used to indicate time domain information of the SLPRS resource, and in the embodiment of the present application, certain values ​​of this field are reused to indicate activation or deactivation of the SLPRS resource determined based on the first field. The time domain information of the SLPRS resource may be time slot information of the SLPRS resource, indicating one or more time units, such as one or more time slots. Exemplarily, the SLPRS resource occupies 3 time slots, and the time domain information of the SLPRS resource indicates the indexes of the 3 time slots.

[0123] The two optional fields in the first field and the three optional fields in the second field are provided for illustrative purposes only and do not limit the embodiments of the present application. Based on the two optional fields in the first field and the three optional fields in the second field, a variety of combinations are possible, which will be described in detail in Methods 1 to 7 below and will not be repeated here.

[0124] 402a: In response to the value of the second field, the UE activates the SLPRS resources.

[0125] The UE receives the DCI, parses the DCI to obtain the first field and the second field, and determines the SLPRS resource based on the first field. Optionally, the UE determines whether the SLPRS resource is in an activated state or a deactivated state. For example, the first field is the SLPRSresourceindication field. Based on the index of the SLPRS resource indicated by the field, the UE determines the SLPRS resource and monitors whether the SLPRS resource is used to transmit SLPRS and / or PSCCH. If it is not used to transmit SLPRS and / or PSCCH, then the SLPRS resource is in an inactivated state; if it is being used to transmit SLPRS and / or PSCCH, then the SLPRS resource is in an activated state.

[0126] The UE may determine to activate the SLPRS resource based on the value of the second field. Optionally, when the UE determines that the SLPRS resource is in an inactive state, the UE may determine to activate the SLPRS resource based on the value of the second field. After activating the SLPRS resource, the UE may transmit the SLPRS and / or PSCCH via the SLPRS resource.

[0127] 402b: In response to the value of the second field, the UE deactivates the SLPRS resources.

[0128] The UE may determine to deactivate the SLPRS resource based on the value of the second field. Optionally, upon determining that the SLPRS resource is in an activated state, the UE may determine to deactivate the SLPRS resource based on the value of the second field. After deactivating the SLPRS resource, the UE may stop transmitting the SLPRS and / or PSCCH via the SLPRS resource.

[0129] In the embodiment shown in FIG. 4 , in combination with the first field and the second field in the DCI, the UE may activate or deactivate the semi-static SLPRS resources, thereby implementing semi-static scheduling of the SLPRS resources, which is beneficial to saving signaling overhead.

[0130] Optionally, the network device may send RRC signaling to the UE before sending DCI to the UE.

[0131] In one implementation, a network device sends a first RRC signaling to a UE. The first RRC signaling may include one or more of a configuration index, a transmission period, and a maximum number of transmissions. The configuration index indicates an index of the semi-static configuration information. The transmission period indicates the transmission period of the SLPRS resource, measured in milliseconds (ms). For example, the minimum period is 100 ms and the maximum period is 1000 ms. The maximum period may be further expanded as standards evolve. The maximum number of transmissions indicates the maximum number of transmissions for the SLPRS resource associated with the semi-static configuration information.

[0132] Exemplarily, the semi-static configuration information configured by the first RRC signaling may be as follows:

[0133] Among them, sl-ConfigIndexCG indicates the configuration index, sl-PeriodCG indicates the transmission period, and sl-CG-MaxTransNumList indicates the maximum number of transmissions.

[0134] In another implementation, the network device sends a second RRC signaling to the UE. The second RRC signaling may include one or more of a configuration index, a transmission period, a maximum number of transmissions, and an SLPRS resource associated with the configuration index. The configuration index is used to indicate the index of the semi-static configuration information. The transmission period is used to indicate the transmission period of the SLPRS resource, in milliseconds (ms). For example, the minimum period is 100 ms and the maximum period is 1000 ms. As the standard develops, the maximum period may be further expanded. The maximum number of transmissions is used to indicate the maximum number of transmissions of the SLPRS resource associated with the semi-static configuration information. The SLPRS resource associated with the configuration index may also be described as the SLPRS resource associated with the semi-static configuration information.

[0135] Exemplarily, the semi-static configuration information of the second RRC signaling configuration may be as follows:

[0136] Among them, sl-ConfigIndexCG represents the configuration index, sl-PeriodCG represents the transmission period, sl-CG-MaxTransNumList represents the maximum number of transmissions, and sl-PRS-ResourceIDList represents the SLPRS resource list associated with the configuration index. The SLPRS resource list may include one or more SLPRS resources.

[0137] Comparing the first and second RRC signaling, it can be seen that the second RRC signaling includes an additional configuration, sl-PRS-ResourceIDList, that is, multiple configuration indexes associated with the SLPRS resources. When the network device sends the first RRC signaling, the DCI sent by the network device to the UE must include a resource indication field. When the network device sends the second RRC signaling, the DCI sent by the network device to the UE may or may not include a resource indication field. When the DCI does not include a resource indication field, this helps shorten the DCI bit length.

[0138] Exemplarily, the DCI may include one or more of the following fields:

[0139] - Resource pool index (Resource pool index). The field length of this field is log2I rounded up to whole bits, where I is the total number of resource pools configured by higher-level parameters, or the total number of resource pools configured by higher-level parameters for transmitting SLPRS, or the total number of SLPSR-specific resource pools configured by higher-level parameters. This field is used to indicate the resource pool to which the currently scheduled SLPRS resources belong.

[0140] -Time Gap: This field has a length of 3 bits and is used to indicate the time slot offset between the transmission time of the SLPRS resource and the time slot in which the DCI is received.

[0141] -SCIformat1-Bfields according to clause 8.3.1.2:

[0142] -Time resource assignment: This field indicates the time slot information of the currently scheduled SLPRS resource.

[0143] - Resource indication (SLPRSresourceindication), this field is used to indicate the index of the currently scheduled SLPRS resource;

[0144] -Configuration index (Configurationindex), this field is used to indicate the configuration index in the RRC signaling; for example, the configuration index in the first RRC signaling or the configuration index in the second RRC signaling;

[0145] -Activation indication (SLPRSactivation): This field is used to indicate activation or deactivation of SLPRS resources.

[0146] Based on the two optional fields of the first field and the three optional fields of the second field, multiple combinations are possible:

[0147] Mode 1: the first field is a resource indication field, and the second field is an activation indication field.

[0148] The resource indication field indicates the currently scheduled SLPRS resource, and the activation indication field indicates whether the SLPRS resource is activated or deactivated. The resource indication field indicates one or more SLPRS resources, specifically, the indexes of one or more SLPRS resources. The resource indication field may also be referred to as the SLPRS resource identifier (SLPRSresourceID) field or other names, which are not limited here.

[0149] Optionally, the activation indication field has a field length of 1 bit, and the value of this 1 bit is used to indicate activation or deactivation of the SLPRS resource. When the value of this 1 bit is a first value, the SLPRS resource is in an inactive state, and the activation indication field is used to indicate activation of the SLPRS resource; when the value of this 1 bit is a second value, the SLPRS resource is in an active state, and the activation indication field is used to indicate deactivation of the SLPRS resource. The first value and the second value can be the same. For example, when the value of this 1 bit is 1, the SLPRS resource is in an inactive state, indicating activation of the SLPRS resource; when the value of this 1 bit is 1, the SLPRS resource is in an active state, indicating deactivation of the SLPRS resource. The first value and the second value can be different. For example, when the value of this 1 bit is 1, the SLPRS resource is in an inactive state, indicating activation of the SLPRS resource; when the value of this 1 bit is 0, the SLPRS resource is in an active state, indicating deactivation of the SLPRS resource.

[0150] Optionally, the Activation Indication field has a length of 2 bits, and the value of these 2 bits is used to indicate activation or deactivation of the SLPRS resource. When the value of these 2 bits is the third value, it indicates activation of the SLPRS resource; when the value of these 2 bits is the fourth value, it indicates deactivation of the SLPRS resource. Optionally, when the value of these 2 bits is the third value, the SLPRS resource is in the inactive state, and the Activation Indication field is used to indicate activation of the SLPRS resource; when the value of these 2 bits is the fourth value, the SLPRS resource is in the active state, and the Activation Indication field is used to indicate deactivation of the SLPRS resource. The third and fourth values ​​can be different. For example, when the value of these 2 bits is 01, it indicates activation of the SLPRS resource; when the value of these 2 bits is 10, it indicates deactivation of the SLPRS resource. Other values ​​of these 2 bits can be used to indicate other functions, thereby reducing DCI signaling overhead.

[0151] The DCI may also include a configuration index field, based on which the transmission period and / or maximum number of transmissions of the SLPRS resource may be determined so that the UE may periodically activate or deactivate the SLPRS resource and / or activate or deactivate the SLPRS resource according to the maximum number of transmissions.

[0152] Mode 2: the first field is a configuration index field, and the second field is an activation indication field.

[0153] The configuration index field indicates the configuration index in the RRC signaling. The configuration index is associated with the SLPRS resource. One configuration index can be associated with one SLPRS resource. The activation indication field indicates activation or deactivation of the associated SLPRS resource.

[0154] Optionally, the activation indication field has a field length of 1 bit, and the value of this 1 bit is used to indicate activation or deactivation of the SLPRS resource. When the value of this 1 bit is a first value, the SLPRS resource is in an inactive state, and the activation indication field is used to indicate activation of the SLPRS resource; when the value of this 1 bit is a second value, the SLPRS resource is in an active state, and the activation indication field is used to indicate deactivation of the SLPRS resource. The first value and the second value can be the same. For example, when the value of this 1 bit is 1, the SLPRS resource is in an inactive state, indicating activation of the SLPRS resource; when the value of this 1 bit is 1, the SLPRS resource is in an active state, indicating deactivation of the SLPRS resource. The first value and the second value can be different. For example, when the value of this 1 bit is 1, the SLPRS resource is in an inactive state, indicating activation of the SLPRS resource; when the value of this 1 bit is 0, the SLPRS resource is in an active state, indicating deactivation of the SLPRS resource.

[0155] Optionally, the Activation Indication field has a length of 2 bits, and the value of these 2 bits is used to indicate activation or deactivation of the SLPRS resource. When the value of these 2 bits is the third value, it indicates activation of the SLPRS resource; when the value of these 2 bits is the fourth value, it indicates deactivation of the SLPRS resource. Optionally, when the value of these 2 bits is the third value, the SLPRS resource is in the inactive state, and the Activation Indication field is used to indicate activation of the SLPRS resource; when the value of these 2 bits is the fourth value, the SLPRS resource is in the active state, and the Activation Indication field is used to indicate deactivation of the SLPRS resource. The third and fourth values ​​can be different. For example, when the value of these 2 bits is 01, it indicates activation of the SLPRS resource; when the value of these 2 bits is 10, it indicates deactivation of the SLPRS resource. Other values ​​of these 2 bits can be used to indicate other functions, thereby reducing DCI signaling overhead.

[0156] The configuration index field is also used to indicate the transmission period and / or maximum number of transmissions of the SLPRS resource, so that the UE can determine the transmission period and / or maximum number of transmissions of the SLPRS resource, so that the UE can periodically activate or deactivate the SLPRS resource, and / or activate or deactivate the SLPRS resource according to the maximum number of transmissions.

[0157] Compared with method 1, method 2 can shorten the bit length of DCI.

[0158] Mode 3: the first field is a resource indication field, and the second field is a time domain scheduling field.

[0159] The resource indication field indicates the currently scheduled SLPRS resource, and the time domain scheduling field indicates whether to activate or deactivate the SLPRS resource. The resource indication field may be, for example, the SLPRSresourceindication field or the FirstSLPRSindicator field. The time domain scheduling field may be, for example, the Timeresourceassignment field or the ResourceIDindication field. Optionally, the resource indication field is the SLPRSresourceindication field, and the time domain scheduling field is the Timeresourceassignment field. Optionally, the resource indication field is the FirstSLPRSindicator field, and the time domain scheduling field is the ResourceIDindication field. For details on the FirstSLPRSindicator field and the ResourceIDindication field, please refer to Method 6.

[0160] In traditional communications, data retransmission can improve transmission success rates. Different data blocks are sent in different resource periods, rather than retransmitted portions of a single data block. For example, see Figure 5 . In Figure 5 , data block 1 is transmitted within a semi-static resource period and then retransmitted within that period; data block 2 is transmitted within the next semi-static resource period. However, for SLPRS, it suffices to transmit SLPRS once per SLPRS resource period. Because SLPRS does not require retransmission, joint estimation can be performed across multiple SLPRS resource periods to improve measurement accuracy. Therefore, for SLPRS transmission once per SLPRS resource period, there is no need for a time domain scheduling field to indicate future reserved non-periodic SLPRS resources. For example, see Figure 6 . In Figure 6 , SLPRS is transmitted once per semi-static resource period. Furthermore, the time domain scheduling field can be reused to indicate activation or deactivation of SLPRS resources.

[0161] When the value of the time domain scheduling field is the fifth value, it indicates that the SLPRS resource is activated; when the value of the time domain scheduling field is the sixth value, it indicates that the SLPRS resource is deactivated. Optionally, when the value of the time domain scheduling field is the fifth value, the SLPRS resource is in an inactive state, then the time domain scheduling field is used to indicate activation of the SLPRS resource; when the value of the time domain scheduling field is the sixth value, the SLPRS resource is in an activated state, then the time domain scheduling field is used to indicate deactivation of the SLPRS resource. For example, if the value of the time domain scheduling field is all 1s, it indicates activation of the SLPRS resource; if the value of the time domain scheduling field is all 0s, it indicates deactivation of the SLPRS resource.

[0162] The field length of the time domain scheduling field can be calculated based on system configuration parameters, for example, the field length of the time domain scheduling field is determined based on the number of SLPRS resources, or further, the field length of the time domain scheduling field is determined based on the maximum number of reserved resources. Exemplarily, the field length of the time domain scheduling field is 5 bits. When these 5 bits are 11111, it indicates activation of the SLPRS resource; when these 5 bits are 00000, it indicates deactivation of the SLPRS resource.

[0163] Optionally, the fifth and sixth values ​​are predefined, for example, by a protocol. That is, when the value of the fixed time domain scheduling field is the fifth value, it indicates activation of the SLPRS resource; and when the value of the fixed time domain scheduling field is the sixth value, it indicates deactivation of the SLPRS resource.

[0164] Optionally, the fifth value and / or sixth value may be indicated by a network device. For example, the network device sends RRC signaling to the UE, where the RRC signaling is used to configure the first parameter and / or the second parameter, where the first parameter is used to indicate the fifth value, and the second parameter is used to indicate the sixth value. That is, the first parameter is used to indicate that when the value of the time domain scheduling field is the fifth value, the time domain scheduling field is used to indicate activation of SLPRS resources; and the second parameter is used to indicate that when the value of the time domain scheduling field is the sixth value, the time domain scheduling field is used to indicate deactivation of SLPRS resources.

[0165] For example, the content of the RRC signaling configuration can be seen in Figure 7. In Figure 7, two parameters sl-TRIV-Activation-r18 and sl-TRIV-DeActivation-r18 are configured in SL-ScheduledConfig-r16, corresponding to the first parameter and the second parameter respectively.

[0166] The DCI may also include a configuration index field, based on which the transmission period and / or maximum number of transmissions of the SLPRS resource may be determined so that the UE may periodically activate or deactivate the SLPRS resource and / or activate or deactivate the SLPRS resource according to the maximum number of transmissions.

[0167] Mode 4: the first field is the configuration index field, and the second field is the time domain scheduling field.

[0168] The configuration index field indicates the configuration index in the RRC signaling, which is associated with the SLPRS resource; the time domain scheduling field indicates whether to activate or deactivate the associated SLPRS resource. Mode 4 also reuses the time domain scheduling field to indicate whether to activate or deactivate the SLPRS resource. Please refer to the detailed description of the time domain scheduling field in Mode 3 and will not be repeated here.

[0169] The configuration index field is also used to indicate the transmission period and / or maximum number of transmissions of the SLPRS resource, so that the UE can determine the transmission period and / or maximum number of transmissions of the SLPRS resource, so that the UE can periodically activate or deactivate the SLPRS resource, and / or activate or deactivate the SLPRS resource according to the maximum number of transmissions.

[0170] Mode 5: The first field is a resource indication field, and the second field is a resource indication field.

[0171] In Mode 5, the resource indication field can be used to indicate the index of the currently scheduled SLPRS resource and also to indicate whether the SLPRS resource is activated or deactivated. In other words, the resource indication field has two functions: one is to indicate the SLPRS index, and the other is to indicate whether the SLPRS resource is activated or deactivated. Optionally, the resource indication field can be an SLPRS resource indication field or a Resource ID indication field. The Resource ID indication field is explained in detail in Mode 6.

[0172] Considering that SLPRS does not need to be retransmitted, joint estimation can be performed through the transmission of multiple SLPRS resource periods to improve measurement accuracy. For example, please refer to Figure 6, in which SLPRS is transmitted once in a semi-static resource period. Therefore, the activation or deactivation of SL PRS resources can be indicated by the values ​​of other SLPRS resource indexes except the first SLPRS resource index in the resource indication field. Since one DCI needs to activate multiple transmissions of semi-static SLPRS resources, in order to reduce the indication overhead of DCI, the SLPRS resource indexes in different semi-static resource periods can be designed to be the same, that is, the semi-static SLPRS resources are used for periodic transmission of the same SLPRS. The transmission period can be the period of the physical time slot or the period of the logical time slot, that is, in the time slot occupied by the SL system, the SLPRS resources are sent at fixed time intervals. Since SLPRS is not retransmitted in a semi-static resource period, the resource indication field can be reused to indicate the activation or deactivation of SLPRS resources.

[0173] Optionally, the value of the resource indication field is a first set of values, indicating activation of the SLPRS resource; the value of the resource indication field is a second set of values, indicating deactivation of the SLPRS resource. Optionally, the value of the resource indication field is the first set of values ​​and the SLPRS resource is in an inactive state, and the resource indication field is used to indicate activation of the SLPRS resource; the value of the resource indication field is the second set of values ​​and the SLPRS resource is in an activated state, and the resource indication field is used to indicate deactivation of the SLPRS resource; wherein the first set of values ​​includes one or more values, and the second set of values ​​includes one or more values. A group value represents one or more values, and a value represents the index of the SLPRS resource in a time unit, such as a time slot. For example, the first set of values ​​and the second set of values ​​both include three values, the first value of the three values ​​represents the index of the SLPRS resource in the first time slot, the second value represents the index of the SLPRS resource in the second time slot, and the third value represents the index of the SLPRS resource in the third time slot.

[0174] Optionally, the value of the resource indication field is the seventh value, indicating activation of the SLPRS resource; the value of the resource indication field is the eighth value, indicating deactivation of the SLPRS resource. Optionally, the value of the resource indication field is the seventh value and the SLPRS resource is in an inactive state, and the resource indication field is used to indicate activation of the SLPRS resource; the value of the resource indication field is the eighth value and the SLPRS resource is in an activated state, and the resource indication field is used to indicate deactivation of the SLPRS resource; wherein the seventh value is different from the eighth value. The seventh value can be understood as the overall value of the first group of values, and the eighth value can be understood as the overall value of the second group of values. Both the first group of values ​​and the second group of values ​​include 3 values, each value is a 2-bit value, then the seventh value can be one value of these 6 bits, and the eighth value can be another value of these 6 bits.

[0175] It can be understood that when the value of the resource indication field is the seventh value or the first group of values, it indicates both the index of the currently scheduled SLPRS resource and the activation of the SLPRS resource; when the value of the resource indication field is the eighth value or the second group of values, it indicates both the index of the currently scheduled SLPRS resource and the deactivation of the SLPRS resource.

[0176] Optionally, the first SLPRS resource index indicated by the resource indication field is used to indicate the first SLPRS resource. The UE defaults that the index of subsequent SLPRS resources is the same as the index of the first SLPRS resource. The i-th SLPRS resource index indicated by the resource indication field is used to indicate activation or deactivation of the SLPRS resource. i is an integer greater than 1. The i-th SLPRS resource index represents the index of the SLPRS resource in the i-th time unit. The i-th time unit is, for example, the i-th time slot. The i-th time slot is the time slot other than the first time slot in the scheduled time slots. For example, if 3 time slots are scheduled, the i-th time slot can be the second time slot or the third time slot. In other words, the i-th SLPRS resource index is not used to indicate the i-th SLPRS resource, but is used to indicate activation or deactivation of the SLPRS resource. Optionally, when the i-th SLPRS resource index indicated by the resource indication field is the ninth value or the third group of values, the SLPRS resource is in an inactive state, indicating that the SLPRS resource is activated; when the i-th SLPRS resource index indicated by the resource indication field is the tenth value or the fourth group of values, the SLPRS resource is in an active state, indicating that the SLPRS resource is deactivated. The ninth value can be understood as a value in the first group of values ​​(not the value of the SLPRS resource index in the first time slot), and the tenth value can be understood as a value in the second group of values ​​(not the value of the SLPRS resource index in the first time slot). The third group of values ​​includes one or more values, and the fourth group of values ​​includes one or more values. That is, the value of the i-th SLPRS resource index is any value in the third group of values, which can indicate that the SLPRS resource is activated; the value of the i-th SLPRS resource index is any value in the fourth group of values, which can indicate that the SLPRS resource is deactivated.

[0177] Exemplarily, when the SLPRS resource index in the second time slot indicated by the resource indication field is all 1s, it indicates that the SLPRS resource is activated; when the SLPRS resource index in the second time slot is all 0s, it indicates that the SLPRS resource is deactivated. Alternatively, when the SLPRS resource index in the third time slot indicated by the resource indication field is all 1s, it indicates that the SLPRS resource is activated; when the SLPRS resource index in the third time slot is all 0s, it indicates that the SLPRS resource is deactivated.

[0178] Optionally, the seventh value and the eighth value are predefined. Alternatively, the first group of values ​​and the second group of values ​​are predefined. Alternatively, the ninth value and the tenth value are predetermined. Alternatively, the third group of values ​​and the fourth group of values ​​are predefined. Optionally, the ninth value and / or the tenth value may be indicated by a network device. Alternatively, the third group of values ​​and / or the fourth group of values ​​may be indicated by a network device. For example, the network device sends RRC signaling to the UE, and the RRC signaling is used to configure the third parameter and / or the fourth parameter, the third parameter is used to indicate the ninth value, and the fourth parameter is used to indicate the tenth value; alternatively, the third parameter is used to indicate the third group of values, and the fourth parameter is used to indicate the fourth group of values.

[0179] For example, the content of the RRC signaling configuration can be seen in Figure 7. In Figure 7, two parameters sl-TRIV-Activation-r18 and sl-TRIV-DeActivation-r18 are configured in SL-ScheduledConfig-r16, corresponding to the third parameter and the fourth parameter respectively.

[0180] The DCI may also include a configuration index field, based on which the transmission period and / or maximum number of transmissions of the SLPRS resource may be determined so that the UE may periodically activate or deactivate the SLPRS resource and / or activate or deactivate the SLPRS resource according to the maximum number of transmissions.

[0181] Mode 6: the first field is a first resource indication field, and the second field is a second resource indication field.

[0182] In mode 6, the first resource indication field indicates the SLPRS resource to be activated or deactivated, and the second resource indication field is used to indicate activation or deactivation of the SLPRS resource. The first resource indication field indicates the SLPRS resource in the first time slot, and the index of the SLPRS resource in the future time slot is the same as the index of the SLPRS resource in the first time slot by default. Optionally, the first resource indication field can be the FirstSLPRSindicator field in the DCI, and the second resource indication field can be the ResourceIDindication field in the DCI.

[0183] Considering that SLPRS does not need to be retransmitted, there is no need to indicate the reserved non-periodic SLPRS resources through the second resource indication field, and the second resource indication field can be reused to activate or deactivate the SLPRS resources corresponding to the first resource indication field.

[0184] The DCI format for mode 6 may be DCI format 3_2, which may include one or more of the following fields:

[0185] - Resource pool index (Resource pool index). The field length of this field is log2I rounded up to whole bits, where I is the total number of resource pools configured by higher-level parameters, or the total number of resource pools configured by higher-level parameters for transmitting SLPRS, or the total number of SLPSR-specific resource pools configured by higher-level parameters. This field is used to indicate the resource pool to which the currently scheduled SLPRS resources belong.

[0186] -Time Gap: This field has a length of 3 bits and is used to indicate the time slot offset between the transmission time of the SLPRS resource and the time slot in which the DCI is received.

[0187] -First SLPRS indicator: This field is used to indicate the first SLPRS resource, that is, the SLPRS in the first time slot. The index of the SLPRS resource in the future time slot is the same as the index of the SLPRS resource in the first time slot by default.

[0188] -SCIformat1-Bfields according to clause 8.3.1.2:

[0189] -Time resource assignment: This field indicates the time slot information of the currently scheduled SLPRS resource.

[0190] - Resource indication (Resource ID indication), this field is used to indicate the reserved non-periodic SLPRS resources. In mode 7, it is used to indicate the activation or deactivation of SLPRS resources;

[0191] -Configuration index (Configurationindex), this field is used to indicate the configuration index in the RRC signaling; for example, the configuration index in the first RRC signaling or the configuration index in the second RRC signaling; if the configuration index in the second RRC signaling is indicated, the SLPRS resource indicated by the first SLPRS indication field is included in at least one SLPRS resource associated with the configuration index.

[0192] Optionally, when the value of the second resource indication field is the eleventh value, it indicates activation of the SLPRS resource; when the value of the second resource indication field is the twelfth value, it indicates deactivation of the SLPRS resource.

[0193] The eleventh value and the twelfth value may be predefined. Alternatively, the eleventh value and / or the twelfth value may be indicated by the network device. The network device indicating the eleventh value and / or the twelfth value may refer to the network device indicating the fifth value and / or the sixth value.

[0194] Mode 7: the first field is a configuration index field, and the second field is a resource indication field.

[0195] The configuration index field indicates a configuration index in the RRC signaling, and the configuration index is associated with an SLPRS resource; the resource indication field indicates activation or deactivation of the associated SLPRS resource. The RRC signaling may be the second RRC signaling described above.

[0196] When configuring the index-associated SLPRS field, the resource indication field need not indicate the SLPRS resource; instead, it indicates activation or deactivation of the associated SLPRS resource. The resource indication field indicates activation or deactivation of the SLPRS. For details on how the resource indication field indicates activation or deactivation of the SLPRS, refer to Method 5 and are not described here. Optionally, the resource indication field may also be the second resource indication field in Method 6.

[0197] The configuration index field is also used to indicate the transmission period and / or maximum number of transmissions of the SLPRS resource, so that the UE can determine the transmission period and / or maximum number of transmissions of the SLPRS resource, so that the UE can periodically activate or deactivate the SLPRS resource, and / or activate or deactivate the SLPRS resource according to the maximum number of transmissions.

[0198] The above-mentioned methods 1 to 7 are used as examples. The embodiment of the present application does not exclude the possibility of multiplexing other fields in the DCI to indicate the activation or deactivation of SLPRS resources.

[0199] The present application provides a communication device that can be used to implement the functions of the above-mentioned UE or network device. The communication device can be a UE or a network device. The communication device includes a unit that corresponds one-to-one to the method / operation / step / action performed by the UE or network device in the above-mentioned method embodiment. The unit can be a hardware circuit, or software, or a combination of a hardware circuit and software. Please refer to Figure 8, which shows a structural diagram of a communication device 800 in an embodiment of the present application. The communication device 800 may include an interface unit 801 and a processing unit 802. Specifically, the processing unit 802 is used to process signaling and / or data, and the signaling and / or data may be data received by the interface unit 801, and the processed signaling and / or data may also be sent by the interface unit 801;

[0200] In one embodiment, when the communication device 800 is a UE, wherein:

[0201] The interface unit 801 is configured to receive downlink control information from a network device, where the downlink control information includes a first field and a second field; wherein the first field is used to determine a sidelink positioning reference signal resource, and the second field is used to indicate activation or deactivation of the sidelink positioning reference signal resource;

[0202] The processing unit 802 is configured to activate the sidelink positioning reference signal resource in response to the value of the second field; and deactivate the sidelink positioning reference signal resource in response to the value of the second field.

[0203] In this embodiment, for the specific implementation of the above-mentioned interface unit 801 and processing unit 802, reference may be made to the specific implementation steps of the UE in FIG4 , which will not be repeated here.

[0204] In another embodiment, when the communication device shown in FIG8 is a network device, wherein:

[0205] The interface unit 801 is used to send downlink control information to the terminal device, where the downlink control information includes a first field and a second field; wherein the first field is used to determine the sidelink positioning reference signal resource; and the second field is used to indicate activation or deactivation of the positioning reference signal resource.

[0206] In this embodiment, for the specific implementation of the above-mentioned interface unit 801 and processing unit 802, reference may be made to the specific implementation steps of the network device in FIG4 , which will not be repeated here.

[0207] As shown in FIG9 , a communication device 900 provided in an embodiment of the present application is used to implement the functions of the aforementioned UE or network device. The device can be a communication device or a device used in a communication device, and the communication device can be a UE or a network device. The device used in the communication device can be a chip system or chip within the communication device. The chip system can be composed of a chip or can include a chip and other discrete devices.

[0208] The communication device 900 includes at least one processor 910 for implementing the processing function of the device (e.g., UE or network device) in the method provided in the embodiment of the present application. The communication device 900 may also include a communication interface 920 for implementing the transceiver operation of the device (e.g., UE or network device) in the method provided in the embodiment of the present application. In the embodiment of the present application, the communication interface may be a transceiver, a circuit, a bus, a module, or other type of communication interface for communicating with other devices via a transmission medium. For example, the communication interface 920 is used for the device in the communication device 900 to communicate with other devices. The processor 910 uses the communication interface 920 to send and receive data and is used to implement the method described in the above method embodiment.

[0209] The communication device 900 may also include at least one memory 930 for storing program instructions and / or data. The memory 930 is coupled to the processor 910. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, and is used for information exchange between devices, units, or modules. The processor 910 may operate in conjunction with the memory 930. The processor 910 may execute program instructions stored in the memory 930. At least one of the at least one memory may be included in the processor.

[0210] The specific connection medium between the communication interface 920, processor 910, and memory 930 is not limited in the embodiments of the present application. In FIG9 , the embodiment of the present application shows that the memory 930, processor 910, and communication interface 920 are connected via a bus. The bus is represented by a bold line in FIG9 . The connection method between other components is only for schematic illustration and is not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, FIG9 only uses a bold line, but this does not mean that there is only one bus or one type of bus.

[0211] When the communication device 900 is specifically a device for a device (such as a UE or a network device), for example, when the communication device 900 is specifically a chip or a chip system, the communication interface 920 may output or receive a baseband signal. When the communication device 900 is specifically a device (such as a UE or a network device), the communication interface 920 may output or receive a radio frequency signal. In an embodiment of the present application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0212] It should be noted that the above-mentioned communication interface 920 can be used to perform the functions of the above-mentioned interface unit 801, and the above-mentioned processor 910 can be used to perform the functions of the above-mentioned processing unit 802, which will not be repeated here.

[0213] When the above-mentioned communication device is a chip applied to UE, the chip implements the function of the UE in the above-mentioned method embodiment, and the chip receives information from other devices; or the chip sends information to other devices.

[0214] When the communication device is a chip used in a network device, the chip implements the functions of the network device in the above method embodiment. The chip receives information from other devices; or the chip sends information to other devices.

[0215] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0216] The method steps in the embodiments of the present application can be implemented by hardware or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, mobile hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in an access network device or a terminal. Of course, the processor and storage medium can also exist as discrete components in a terminal or access network device.

[0217] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program or instruction can be stored in a computer-readable storage medium or transmitted via the computer-readable storage medium. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, a hard disk, or a tape; it can also be an optical medium, such as a DVD; it can also be a semiconductor medium, such as a solid state drive (SSD).

[0218] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0219] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

[0220] An embodiment of the present application further provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed, the method executed by the UE or network device in the above method embodiment is implemented.

[0221] An embodiment of the present application further provides a computer program product, which includes a computer program. When the computer program is executed, the method performed by the UE or network device in the above method embodiment is implemented.

[0222] It should be noted that for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0223] The descriptions of the various embodiments provided in this application can refer to each other. The descriptions of each embodiment have their own focus. For parts not described in detail in a particular embodiment, please refer to the relevant descriptions of other embodiments. For the convenience and brevity of description, for example, the functions and execution steps of the various devices and equipment provided in the embodiments of this application can refer to the relevant descriptions of the method embodiments of this application. The various method embodiments and the various device embodiments can also refer to, be combined with, or quote each other.

[0224] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for scheduling side-by-side positioning reference signal resources, characterized in that: The method comprises: Receive downlink control information from a network device, the downlink control information comprising a first field and a second field; wherein the first field is used to determine a sideline positioning reference signal resource; and the second field is used to indicate activation or deactivation of the sideline positioning reference signal resource; In response to a value of the second field, activating the sideline positioning reference signal resource; In response to the value of the second field, the sidelink positioning reference signal resource is deactivated.

2. The method according to claim 1, characterized in that The second field is an activation indication field, and the field length of the activation indication field is 1 bit; The value of the activation indication field is a first value and the sideline positioning reference signal resource is in an inactivated state, and the activation indication field is used to indicate activation of the sideline positioning reference signal resource; The value of the activation indication field is a second value and the sideline positioning reference signal resource is in an activated state, and the activation indication field is used to indicate deactivation of the sideline positioning reference signal resource; The first value is the same as or different from the second value.

3. The method according to claim 1, characterized in that The second field is an activation indication field, and the field length of the activation indication field is 2 bits; The value of the activation indication field is a third value, and the activation indication field is used to indicate activation of the sidelink positioning reference signal resource; The value of the activation indication field is a fourth value, and the activation indication field is used to indicate deactivation of the sideline positioning reference signal resource; The third value is different from the fourth value.

4. The method according to claim 1, characterized in that The second field is a time domain scheduling field; The value of the time domain scheduling field is a fifth value, and the time domain scheduling field is used to indicate activation of the sideline positioning reference signal resource; The value of the time domain scheduling field is a sixth value, and the time domain scheduling field is used to indicate deactivation of the sideline positioning reference signal resource; The fifth value is different from the sixth value.

5. The method according to claim 4, characterized in that The method further comprises: A first parameter and / or a second parameter is received from the network device, wherein the first parameter is used to indicate the fifth value, and the second parameter is used to indicate the sixth value.

6. The method according to claim 1, characterized in that The second field is a resource indication field; The value of the resource indication field is the seventh value or the first group of values, and the resource indication field is used to indicate activation of the sideline positioning reference signal resource; The value of the resource indication field is the eighth value or the second group of values, and the resource indication field is used to indicate deactivation of the sidelink positioning reference signal resource; The seventh value is different from the eighth value, the first set of values ​​includes one or more values, and the second set of values ​​includes one or more values.

7. The method according to claim 6, characterized in that The i-th sideline positioning reference signal resource index indicated by the resource indication field is a ninth value or a third group of values, and the resource indication field is specifically used to indicate activation of the sideline positioning reference signal resource; The i-th sidelink positioning reference signal resource index indicated by the resource indication field is the tenth value or the fourth group value, and the resource indication field is specifically used to indicate deactivation of the sidelink positioning reference signal resource; Wherein, i is an integer greater than 1, the third set of values ​​includes one or more values, and the fourth set of values ​​includes one or more values.

8. The method according to claim 7, characterized in that The method further comprises: A third parameter and / or a fourth parameter is received from the network device, the third parameter being used to indicate the ninth value or the third group of values, and the fourth parameter being used to indicate the tenth value or the fourth group of values.

9. The method according to any one of claims 1 to 8, characterized in that The first field is a resource indication field, and the resource indication field is used to indicate the index of the sidelink positioning reference signal resource.

10. The method according to claim 9, characterized in that The downlink control information further includes a configuration index field, and the configuration index field is used to determine the transmission period and / or maximum transmission times of the sidelink positioning reference signal resource.

11. The method according to claim 9, characterized in that The method further comprises: A first radio resource control signaling is received from the network device, where the first radio resource control signaling is used to configure the transmission period and / or the maximum number of transmissions.

12. The method according to any one of claims 1 to 8, characterized in that: The first field is a configuration index field, and the configuration index field is used to indicate a configuration index, and the configuration index is associated with the sidelink positioning reference signal resource.

13. The method according to claim 12, characterized in that The configuration index field is also used to determine the transmission period and / or maximum transmission times of the sidelink positioning reference signal resource.

14. The method according to claim 12, characterized in that The method further comprises: Receive a second wireless resource control signaling from the network device, where the second wireless resource control signaling is used to configure the transmission period, the maximum number of transmissions, the configuration index, and at least one of the sideline positioning reference signal resources associated with the configuration index.

15. A method for scheduling positioning reference signal resources, characterized in that: The method comprises: Downlink control information is sent to a terminal device, wherein the downlink control information includes a first field and a second field; wherein the first field is used to determine a sideline positioning reference signal resource; and the second field is used to indicate activation or deactivation of the positioning reference signal resource.

16. The method according to claim 15, characterized in that The second field is an activation indication field, and the field length of the activation indication field is 1 bit; The value of the activation indication field is a first value and the sideline positioning reference signal resource is in an inactivated state, and the activation indication field is used to indicate activation of the sideline positioning reference signal resource; The value of the activation indication field is a second value and the sideline positioning reference signal resource is in an activated state, and the activation indication field is used to indicate deactivation of the sideline positioning reference signal resource; The first value is the same as or different from the second value.

17. The method according to claim 15, characterized in that The second field is an activation indication field, and the field length of the activation indication field is 2 bits; The value of the activation indication field is a third value, and the activation indication field is used to indicate activation of the sidelink positioning reference signal resource; The value of the activation indication field is a fourth value, and the activation indication field is used to indicate deactivation of the sideline positioning reference signal resource; The third value is different from the fourth value.

18. The method according to claim 15, characterized in that The second field is a time domain scheduling field; The value of the time domain scheduling field is a fifth value, and the time domain scheduling field is used to indicate activation of the sideline positioning reference signal resource; The value of the time domain scheduling field is a sixth value, and the time domain scheduling field is used to indicate deactivation of the sideline positioning reference signal resource; The fifth value is different from the sixth value.

19. The method according to claim 18, characterized in that The method further comprises: A first parameter and / or a second parameter is sent to the terminal device, where the first parameter is used to indicate the fifth value, and the second parameter is used to indicate the sixth value.

20. The method of claim 15, wherein: The second field is a resource indication field; The value of the resource indication field is the seventh value or the first group of values, and the resource indication field is used to indicate activation of the sideline positioning reference signal resource; The value of the resource indication field is the eighth value or the second group of values, and the resource indication field is used to indicate deactivation of the sidelink positioning reference signal resource; The seventh value is different from the eighth value, the first set of values ​​includes one or more values, and the second set of values ​​includes one or more values.

21. The method of claim 20, wherein: The i-th sideline positioning reference signal resource index indicated by the resource indication field is a ninth value or a third group of values, and the resource indication field is specifically used to indicate activation of the sideline positioning reference signal resource; The i-th sidelink positioning reference signal resource index indicated by the resource indication field is the tenth value or the fourth group value, and the resource indication field is specifically used to indicate deactivation of the sidelink positioning reference signal resource; Wherein, i is an integer greater than 1, the third set of values ​​includes one or more values, and the fourth set of values ​​includes one or more values.

22. The method according to claim 21, characterized in that The method further comprises: A third parameter and / or a fourth parameter is sent to the terminal device, wherein the third parameter is used to indicate the ninth value or the third group of values, and the fourth parameter is used to indicate the tenth value or the fourth group of values.

23. The method according to any one of claims 15 to 22, characterized in that: The first field is a resource indication field, and the resource indication field is used to indicate the index of the sidelink positioning reference signal resource.

24. The method according to any one of claims 15 to 22, characterized in that: The first field is a configuration index field, and the configuration index field is used to indicate a configuration index, and the configuration index is associated with the sidelink positioning reference signal resource.

25. A communication device, characterized in that: Comprising a module for executing the method as claimed in any one of claims 1 to 14, or a module for executing the method as claimed in any one of claims 15 to 24.

26. A communication device, characterized in that: The method comprises a processor, wherein the processor is configured to implement the method according to any one of claims 1 to 14 or the method according to any one of claims 15 to 24 through a logic circuit and / or by executing a computer program or instruction.

27. The communication device according to claim 26, characterized in that Also includes: The memory is used to store the computer program or instructions.

28. A communication device, characterized in that: It includes a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method as described in any one of claims 1 to 14 through a logic circuit or execute code instructions; or the method as described in any one of claims 15 to 24.

29. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or an instruction. When the computer program or the instruction is executed by the communication device, the method according to any one of claims 1 to 14; or the method according to any one of claims 15 to 24 is implemented.

30. A computer program product, characterized in that The method comprises a computer program code, which, when executed, implements the method according to any one of claims 1 to 14; or the method according to any one of claims 15 to 24.

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