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

Method and communication device for scheduling reference signal resources for lateral positioning

[0001] This application claims priority to Chinese Patent Application No. 202311294512.9, filed on September 28, 2023, entitled “Scheduling Method and Communication Apparatus for Side Positioning Reference Signal Resources”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a method and communication device for scheduling lateral positioning reference signal resources. Background Technology

[0003] Sidelink (SL) is a near-field communication technology that enables direct information connection between terminal devices via a PC5 interface. For applications such as Vehicle-to-Everything (V2X) and the Industrial Internet of Things (IIoT), the 3rd Generation Partnership Project (3GPP) proposed SL positioning, which is 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. Sidelink positioning reference signals can also be simply referred to as sidelink positioning reference signals.

[0004] Resources used for transmitting lateral positioning reference signals can be called lateral positioning reference signal resources. How to achieve semi-static scheduling of lateral positioning reference signal resources is currently a hot research topic.

[0005] Summary of the Invention

[0006] This application provides a scheduling method and communication device for lateral positioning reference signal resources, which can realize semi-static scheduling of lateral positioning reference signal resources and help save signaling overhead.

[0007] In a first aspect, embodiments of this application provide a method for scheduling lateral positioning reference signal resources. This method can be executed by a terminal device or by a device compatible with the terminal device, such as a processor, chip, or 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 the lateral positioning reference signal resource, and the second field is used to indicate activation or deactivation of the lateral positioning reference signal resource; activating the lateral positioning reference signal resource in response to the value of the second field; and deactivating the lateral positioning reference signal resource in response to the value of the second field.

[0008] As can be seen, by combining the first and second fields in the downlink control information, the terminal device can activate or deactivate the lateral positioning reference signal resources, thereby realizing semi-static scheduling of the lateral positioning reference signal resources, which is beneficial to saving signaling overhead.

[0009] In one possible implementation, the second field mentioned above is an activation indicator field, and the field length of the activation indicator field is 1 bit;

[0010] The activation indication field takes the first value and the above-mentioned lateral positioning reference signal resource is inactive. The activation indication field is used to indicate the activation of the above-mentioned lateral positioning reference signal resource.

[0011] The activation indication field takes the second value and the aforementioned lateral positioning reference signal resource is in an active state. The activation indication field is used to indicate the deactivation of the aforementioned lateral positioning reference signal resource; wherein, the first value and the second value are the same or different.

[0012] In other words, the activation or deactivation of the lateral positioning reference signal resource is indicated by the value of a 1-bit activation indication field. This lateral positioning reference signal resource is determined based on the first field in the downlink control information. Therefore, the terminal device can activate or deactivate the lateral positioning reference signal resource based on the value of this 1-bit activation indication field. This not only enables semi-static scheduling of the lateral positioning reference signal resource but also allows for activation or deactivation indication with relatively low signaling overhead.

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

[0014] The activation indicator field takes a third value, which indicates the activation of the aforementioned lateral positioning reference signal resource; the activation indicator field takes a fourth value, which indicates the deactivation of the aforementioned lateral positioning reference signal resource.

[0015] Optionally, if the value of the activation indication field is a third value and the aforementioned lateral positioning reference signal resource is inactive, the activation indication field is used to indicate the activation of the aforementioned lateral positioning reference signal resource.

[0016] The activation indication field takes the fourth value and the aforementioned lateral positioning reference signal resource is in an active state. The activation indication field is used to indicate the deactivation of the aforementioned lateral positioning reference signal resource; the third value is different from the fourth value.

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

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

[0019] The time-domain scheduling field takes the fifth value, which indicates the activation of the aforementioned lateral positioning reference signal resource; the time-domain scheduling field takes the sixth value, which indicates the deactivation of the aforementioned lateral positioning reference signal resource.

[0020] Optionally, if the time-domain scheduling field is set to the fifth value and the aforementioned lateral positioning reference signal resource is inactive, the time-domain scheduling field is used to indicate the activation of the aforementioned lateral positioning reference signal resource.

[0021] The time-domain scheduling field takes the sixth value and the aforementioned lateral positioning reference signal resource is in an active state. The time-domain scheduling field is used to indicate the deactivation of the aforementioned lateral positioning reference signal resource; 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 lateral positioning reference signal resource, such as time slot information. However, in this application, the time-domain scheduling field is also used to indicate the activation or deactivation of the lateral positioning reference signal resource, which is determined based on the first field in the downlink control information. That is, by reusing the value of the time-domain scheduling field to indicate the activation or deactivation of the lateral positioning reference signal resource, the terminal device can activate the lateral positioning reference signal resource based on the fifth value of the time-domain scheduling field; or deactivate the lateral positioning reference signal resource based on the sixth value of the time-domain scheduling field. This not only achieves semi-static scheduling of the lateral positioning reference signal resource but also saves signaling overhead. No additional field needs to be added to the downlink control information to indicate activation or deactivation, resulting in minimal changes to the downlink control information.

[0023] Optionally, the above method further includes: receiving a first parameter and / or a second parameter from the network device, wherein the first parameter indicates the fifth value and the second parameter indicates the sixth value. That is, the network device configures the first parameter and / or the second parameter for the terminal device. The first parameter indicates that when the time-domain scheduling field is at the fifth value, the lateral positioning reference signal resource is activated; the second parameter indicates that when the time-domain scheduling field is at the sixth value, the lateral positioning reference signal resource is deactivated. By configuring the first parameter and / or the second parameter for the terminal device, the terminal device can determine which value of the time-domain scheduling field can activate the lateral positioning reference signal resource, and / or which value can deactivate the lateral positioning reference signal resource. Therefore, the network device can flexibly configure the first parameter and / or the second parameter.

[0024] Optionally, the fifth and sixth values ​​mentioned above are predefined, such as those predefined by the protocol. That is, when the fixed time-domain scheduling field is set to the fifth value, it indicates activation of the lateral positioning reference signal resource; when the fixed time-domain scheduling field is set to the sixth value, it indicates deactivation of the lateral positioning reference signal resource. Compared to configuring the first and / or second parameters for the terminal device by the network device, this saves signaling and radio resources.

[0025] In yet another possible implementation, the second field mentioned above is a resource indicator field;

[0026] The resource indication field takes the seventh value or the first group of values ​​to indicate activation of the aforementioned lateral positioning reference signal resource; the resource indication field takes the eighth value or the second group of values ​​to indicate deactivation of the aforementioned lateral positioning reference signal resource.

[0027] Optionally, if the resource indication field is set to the seventh value or the first group of values ​​and the aforementioned lateral positioning reference signal resource is inactive, the resource indication field is used to indicate that the aforementioned lateral positioning reference signal resource is activated.

[0028] The resource indication field takes the value of the eighth value or the second group of values ​​and the above-mentioned lateral positioning reference signal resource is in an active state. The resource indication field is used to indicate the deactivation of the above-mentioned lateral positioning reference signal resource. 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 lateral positioning reference signal resource. However, in this application, the resource indication field is also used to indicate the activation or deactivation of the lateral positioning reference signal resource. That is, by reusing the value of the resource indication field to indicate the activation or deactivation of the lateral positioning reference signal resource, the terminal device can activate or deactivate the lateral positioning reference signal resource based on the value of the resource indication field. This not only achieves semi-static scheduling of the lateral positioning reference signal resource but also saves signaling overhead. No additional field indicating activation or deactivation needs to be added to the downlink control information, resulting in minimal changes to the downlink control information.

[0030] Optionally, the resource indication field indicates the i-th lateral positioning reference signal resource index as the ninth value or the third group of values, specifically used to indicate the activation of the aforementioned lateral positioning reference signal resource; the resource indication field also indicates the i-th lateral positioning reference signal resource index as the tenth value or the fourth group of values, specifically used to indicate the deactivation of the aforementioned lateral positioning reference signal resource; where 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 is understood that when semi-statically scheduling multiple lateral positioning reference signal resources, the i-th lateral positioning reference signal resource index is by default the same as the first lateral positioning reference signal resource index, but the resource indication field indicates the i-th lateral positioning reference signal resource index to indicate the activation or deactivation of the lateral positioning reference signal resource.

[0031] Optionally, the above method further includes: receiving a third parameter and / or a fourth parameter from the network device, wherein the third parameter indicates the ninth value or the third group of values, and the fourth parameter indicates the 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 indicates that when the resource indication field is set to the ninth value or the third group of values, the lateral positioning reference signal resource is activated; the fourth parameter indicates that when the resource indication field is set to the tenth value or the fourth group of values, the lateral positioning reference signal resource is deactivated. By configuring the third parameter and / or the fourth parameter for the terminal device, the terminal device can determine which value of the resource indication field can activate the lateral positioning reference signal resource, and / or which value can deactivate the lateral positioning reference signal resource. Therefore, the network device can flexibly configure the third parameter and / or the fourth parameter.

[0032] Optionally, the ninth and tenth values ​​mentioned above are predefined, for example, predefined by the protocol. Alternatively, the third and fourth sets of values ​​mentioned above are predefined. That is, when the fixed resource indication field is set to the ninth or third set of values, it indicates activation of the lateral positioning reference signal resource; when the fixed resource indication field is set to the tenth or fourth set of values, it indicates deactivation of the lateral positioning reference signal resource. Compared to configuring the third and / or fourth parameters for the terminal device by the network device, signaling and radio resources can be saved.

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

[0034] Optionally, the aforementioned downlink control information also includes a configuration index field. This field indicates the configuration index, based on which the transmission period and / or maximum number of transmissions for the aforementioned lateral positioning reference signal resource can be determined. The configuration index field also indicates the configuration index, based on which semi-static configuration information, including the transmission period and / or maximum number of transmissions, can be determined.

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

[0036] In another possible implementation, the first field mentioned above is a configuration index field. This field indicates the configuration index, which is associated with the lateral positioning reference signal resource. In other words, the lateral positioning reference signal resource associated with the configuration index, i.e., the semi-statically scheduled lateral positioning reference signal resource, can be determined based on the configuration index field. Determining the lateral positioning reference signal resource based on the configuration index in the downlink control information results in a shorter bit length in the downlink control information compared to determining it based on the resource indication field.

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

[0038] Optionally, the above method further includes: receiving a second RRC signaling from a network device, the second RRC signaling being used to configure at least one of a transmission period, a maximum number of transmissions, and a lateral positioning reference signal resource associated with a configuration index. It is understood 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 lateral positioning reference signal resource associated with the configuration index.

[0039] Secondly, embodiments of this application provide a method for scheduling lateral positioning reference signal resources. This method can 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 lateral positioning reference signal resources; and the second field is used to indicate activation or deactivation of the positioning reference signal resources.

[0040] It is evident that network devices instruct terminal devices to activate or deactivate lateral positioning reference signal resources through the first and second fields in the downlink control information, thereby achieving semi-static scheduling of lateral positioning reference signal resources, which helps to save signaling overhead.

[0041] In one possible implementation, the second field mentioned above is an activation indicator field, and the field length of the activation indicator field is 1 bit;

[0042] The activation indication field takes the first value and the above-mentioned lateral positioning reference signal resource is inactive. The activation indication field is used to indicate the activation of the above-mentioned lateral positioning reference signal resource.

[0043] The activation indication field takes the second value and the aforementioned lateral positioning reference signal resource is in an active state. The activation indication field is used to indicate the deactivation of the aforementioned lateral positioning reference signal resource; wherein, the first value and the second value are the same or different.

[0044] In other words, the activation or deactivation of the lateral positioning reference signal resource is indicated by the value of a 1-bit activation indication field. This lateral positioning reference signal resource is determined based on the first field in the downlink control information. Therefore, the terminal device can activate or deactivate the lateral positioning reference signal resource based on the value of this 1-bit activation indication field. This not only enables semi-static scheduling of the lateral positioning reference signal resource but also allows for activation or deactivation indication with relatively low signaling overhead.

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

[0046] The activation indicator field takes a third value, which indicates the activation of the aforementioned lateral positioning reference signal resource; the activation indicator field takes a fourth value, which indicates the deactivation of the aforementioned lateral positioning reference signal resource.

[0047] Optionally, if the value of the activation indication field is a third value and the aforementioned lateral positioning reference signal resource is inactive, the activation indication field is used to indicate the activation of the aforementioned lateral positioning reference signal resource.

[0048] The activation indication field takes the fourth value and the aforementioned lateral positioning reference signal resource is in an active state. The activation indication field is used to indicate the deactivation of the aforementioned lateral positioning reference signal resource; the third value is different from the fourth value.

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

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

[0051] The time-domain scheduling field takes the fifth value, which indicates the activation of the aforementioned lateral positioning reference signal resource; the time-domain scheduling field takes the sixth value, which indicates the deactivation of the aforementioned lateral positioning reference signal resource.

[0052] Optionally, if the time-domain scheduling field is set to the fifth value and the aforementioned lateral positioning reference signal resource is inactive, the time-domain scheduling field is used to indicate the activation of the aforementioned lateral positioning reference signal resource.

[0053] The time-domain scheduling field takes the sixth value and the aforementioned lateral positioning reference signal resource is in an active state. The time-domain scheduling field is used to indicate the deactivation of the aforementioned lateral positioning reference signal resource; 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 lateral positioning reference signal resource, such as time slot information. However, in this application, the time-domain scheduling field is also used to indicate the activation or deactivation of the lateral positioning reference signal resource, which is determined based on the first field in the downlink control information. That is, by reusing the value of the time-domain scheduling field to indicate the activation or deactivation of the lateral positioning reference signal resource, the terminal device can activate the lateral positioning reference signal resource based on the fifth value of the time-domain scheduling field; or deactivate the lateral positioning reference signal resource based on the sixth value of the time-domain scheduling field. This not only achieves semi-static scheduling of the lateral positioning reference signal resource but also saves signaling overhead. No additional field needs to be added to the downlink control information to indicate activation or deactivation, resulting in minimal changes to the downlink control information.

[0055] Optionally, the above method further includes: sending a first parameter and / or a second parameter to the terminal device, wherein the first parameter indicates the fifth value and the second parameter indicates the sixth value. That is, the network device configures the first parameter and / or the second parameter for the terminal device. The first parameter indicates that when the time-domain scheduling field is at the fifth value, the lateral positioning reference signal resource is activated; the second parameter indicates that when the time-domain scheduling field is at the sixth value, the lateral positioning reference signal resource is deactivated. By configuring the first parameter and / or the second parameter for the terminal device, the network device can determine which value of the time-domain scheduling field can activate the lateral positioning reference signal resource, and / or which value can deactivate it. Therefore, the network device can flexibly configure the first parameter and / or the second parameter.

[0056] Optionally, the fifth and sixth values ​​mentioned above are predefined, such as those predefined by the protocol. That is, when the fixed time-domain scheduling field is set to the fifth value, it indicates activation of the lateral positioning reference signal resource; when the fixed time-domain scheduling field is set to the sixth value, it indicates deactivation of the lateral positioning reference signal resource. Compared to configuring the first and / or second parameters for the terminal device by the network device, this saves signaling and radio resources.

[0057] In yet another possible implementation, the second field mentioned above is a resource indicator field;

[0058] The resource indication field takes the seventh value or the first group of values ​​to indicate activation of the aforementioned lateral positioning reference signal resource; the resource indication field takes the eighth value or the second group of values ​​to indicate deactivation of the aforementioned lateral positioning reference signal resource.

[0059] Optionally, if the resource indication field is set to the seventh value or the first group of values ​​and the aforementioned lateral positioning reference signal resource is inactive, the resource indication field is used to indicate that the aforementioned lateral positioning reference signal resource is activated.

[0060] The resource indication field takes the value of the eighth value or the second group of values ​​and the above-mentioned lateral positioning reference signal resource is in an active state. The resource indication field is used to indicate the deactivation of the above-mentioned lateral positioning reference signal resource. 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 lateral positioning reference signal resource, such as the index of the lateral positioning reference signal resource in semi-static scheduling. However, in this application, the resource indication field is also used to indicate the activation or deactivation of the lateral positioning reference signal resource. That is, by reusing the value of the resource indication field to indicate the activation or deactivation of the lateral positioning reference signal resource, the terminal device can activate or deactivate the lateral positioning reference signal resource based on the value of the resource indication field. In this way, not only can semi-static scheduling of the lateral positioning reference signal resource be achieved, but signaling overhead can also be saved. There is no need to add an extra field to the downlink control information to indicate activation or deactivation, and the modification to the downlink control information is minimal.

[0062] Optionally, the resource indication field indicates the i-th lateral positioning reference signal resource index as the ninth value, specifically used to indicate the activation of the aforementioned lateral positioning reference signal resource; the resource indication field also indicates the i-th lateral positioning reference signal resource index as the tenth value, specifically used to indicate the deactivation of the aforementioned lateral positioning reference signal resource; where 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 is understood that when semi-statically scheduling multiple lateral positioning reference signal resources, the i-th lateral positioning reference signal resource index is by default the same as the first lateral positioning reference signal resource index, but the resource indication field indicates the i-th lateral positioning reference signal resource index to indicate whether to activate or deactivate the lateral positioning reference signal resource.

[0063] Optionally, the above method further includes: sending a third parameter and / or a fourth parameter to the terminal device, wherein the third parameter indicates the aforementioned ninth value or third group of values, and the fourth parameter indicates the aforementioned tenth value or 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 indicates that when the resource indication field is set to the ninth value or third group of values, the lateral positioning reference signal resource is activated; the fourth parameter indicates that when the resource indication field is set to the tenth value or fourth group of values, the lateral positioning reference signal resource is deactivated. By configuring the third parameter and / or the fourth parameter for the terminal device, the network device can determine which value of the resource indication field can activate the lateral positioning reference signal resource, and / or which value can deactivate the lateral positioning reference signal resource. Therefore, the network device can flexibly configure the third parameter and / or the fourth parameter.

[0064] Optionally, the ninth and tenth values ​​mentioned above are predefined, for example, predefined by the protocol. Alternatively, the third and fourth sets of values ​​mentioned above are predefined. That is, when the fixed resource indication field is set to the ninth or third set of values, it indicates activation of the lateral positioning reference signal resource; when the fixed resource indication field is set to the tenth or fourth set of values, it indicates deactivation of the lateral positioning reference signal resource. Compared to configuring the third and / or fourth parameters for the terminal device by the network device, signaling and radio resources can be saved.

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

[0066] Optionally, the aforementioned downlink control information also includes a configuration index field. This field indicates the configuration index, based on which the transmission period and / or maximum number of transmissions for the aforementioned lateral positioning reference signal resource can be determined. The configuration index field also indicates the configuration index, based on which semi-static configuration information, including the transmission period and / or maximum number of transmissions, can be determined.

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

[0068] In another possible implementation, the first field mentioned above is a configuration index field. This field indicates the configuration index, which is associated with the lateral positioning reference signal resource. In other words, the lateral positioning reference signal resource associated with the configuration index, i.e., the semi-statically scheduled lateral positioning reference signal resource, can be determined based on the configuration index field. Determining the lateral positioning reference signal resource based on the configuration index in the downlink control information results in a shorter bit length in the downlink control information compared to determining it based on the resource indication field.

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

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

[0071] Thirdly, embodiments of this application provide a communication device, which may be a terminal device, a device within a terminal device, or a device compatible with a terminal device. The communication device may also be a chip system. The communication device can execute the method described in the first aspect. The functions of the communication device can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions. The unit or module may be software and / or hardware. The operations performed by the communication device and its beneficial effects can be found in the method described in the first aspect and its beneficial effects.

[0072] Fourthly, embodiments of this application provide a communication device, which may be a network device, a device within a network device, or a device compatible with a network device. The communication device may also be a chip system. The communication device can execute the method described in the second aspect. The functions of the communication device can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions. The unit or module may be software and / or hardware. The operations performed by the communication device and its beneficial effects can be found in the method described in the second aspect above.

[0073] Fifthly, embodiments of this application provide a communication device, the communication device including a processor, the processor being configured to perform the method as described in the first aspect, or the method as described in the second aspect.

[0074] In a sixth aspect, embodiments of this application provide a communication device, which includes a processor coupled to a memory for storing programs or instructions. When the program or instructions are executed by the processor, the communication device performs the method described in the first or second aspect.

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

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

[0077] Eighthly, embodiments of this application provide a computer-readable storage medium storing a computer program or instructions that, when executed by a communication device, implement the method described in the first or second aspect.

[0078] Ninthly, embodiments of this application provide a computer program product including instructions that, when read and executed by a communication device, cause the communication device to perform a method as described in either the first or second aspect. Attached Figure Description

[0079] Figure 1 is a schematic diagram of an SL resource pool;

[0080] Figure 2 is a schematic diagram of a network architecture applying an embodiment of this application;

[0081] Figure 3 is a schematic diagram of another network architecture applying the embodiments of this application;

[0082] Figure 4 is a flowchart illustrating a scheduling method for SLPRS resources provided in an embodiment of this application;

[0083] Figure 5 is a schematic diagram of a data block transfer;

[0084] Figure 6 is a schematic diagram of SLPRS transmission;

[0085] Figure 7 is a schematic diagram of RRC signaling configuration;

[0086] Figure 8 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0087] Figure 9 is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0088] In this application, the terms "first," "second," etc., are used to distinguish identical or similar items with essentially the same function and purpose. Those skilled in the art will understand that the terms "first," "second," etc., do not limit the quantity or execution order, nor do they imply that they must be different. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0089] It should be understood that in this application, "at least one" refers to one or more; "multiple" refers to two or more. Furthermore, the word "equal to" in this application can be used in conjunction with "greater than" or "less than". When "equal to" and "greater than" are used together, the technical solution using "greater than" is adopted; when "equal to" and "less than" are used together, the technical solution using "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 directly or indirectly to the terminal device. "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, and can include receiving information directly or indirectly from the terminal device. Information may undergo necessary processing between the source and destination, such as format changes, but the destination can understand the valid information from the source. Similar expressions in this application can be interpreted similarly, and will not be elaborated further here.

[0091] The relevant names or terms involved in this application will be explained below to facilitate understanding by those skilled in the art.

[0092] I. Terminal Equipment

[0093] Terminal equipment, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device used to provide voice or data connectivity to users, and can also be an Internet of Things (IoT) device. For example, terminal equipment includes handheld devices with wireless connectivity, vehicle-mounted devices, etc. Currently, terminal devices can include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices (such as smartwatches, smart bracelets, pedometers, etc.), in-vehicle equipment (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.), smart robots, robotic arms, workshop equipment, wireless terminals in autonomous driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, and flying equipment (such as smart robots, hot air balloons, drones, airplanes), etc. Terminal devices can also be other devices with terminal functions; for example, a terminal device can also be a device that performs terminal functions in D2D communication.

[0094] II. Network Equipment

[0095] Network devices are nodes in a radio access network (RAN), also known as access network devices or RAN nodes (or devices). Network devices help terminal devices achieve wireless access. In one possible scenario, network devices can be base stations, evolved NodeBs (eNodeBs), transmitting and receiving points (TRPs), transmitting points (TPs), next-generation NodeBs (gNBs), next-generation base stations in 6G systems, base stations in future mobile communication systems, satellites, integrated access and backhaul (IAB) nodes, and access network devices in mobile switching center non-terrestrial network (NTN) communication systems; that is, they can be deployed on high-altitude platforms or satellites. Network devices can be macro base stations, micro base stations or indoor stations, relay nodes or donor nodes, or wireless controllers in cloud radio access network (CRAN) scenarios. Network devices can also function as base stations in device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, drone communication, and machine-to-machine (M2M) communication. Optionally, network devices can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, in vehicle-to-everything (V2X) technology, the network device can be a roadside unit (RSU).

[0096] All or part of the functions of the network device in this application can 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 can also be a logical node, logical module, or software capable of implementing all or part of the functions of a network device.

[0097] In another possible scenario, multiple network devices collaborate to assist terminals in achieving wireless access, with each network device performing a portion of the base station's functions. For example, network devices can be central units (CUs), distributed units (DUs), CU-control plane (CPs), CU-user plane (UPs), or radio units (RUs), etc. CUs and DUs can be set up separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs). It is understood that network devices can be CU nodes, DU nodes, or devices comprising both CU and DU nodes. Furthermore, CUs can be classified as network devices in the access network (RAN) or the core network (CN), without limitation.

[0098] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an open access network (open RAN, O-RAN, or ORAN) system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0099] III. Lateral Positioning Reference Signals

[0100] A positioning reference signal (PRS) is a known signal provided by the transmitter to the receiver for positioning. This application uses the term "sidelink positioning reference signal" to describe the reference signal transmitted between terminal devices, or between a terminal device and a roadside unit (RSU), used to achieve positioning functionality. Positioning functionality can be achieved between terminal devices by transmitting sidelink positioning reference signals. The full name of the sidelink positioning reference signal is sidelink positioning reference signal (SL PRS), which can also be described as SL-PRS or SPRS, etc. It should be noted that as standards evolve, the positioning reference signal between terminal devices may use other names. For ease of description, this application uses SLPRS to describe the sidelink positioning reference signal, and SLPRS resources to describe the sidelink positioning reference signal resources. SLPRS resources are used to transmit SLPRS.

[0101] IV. Resource Pool

[0102] In a broad sense, a resource pool is a collection of resources. In this application, the resource pool refers to the sidelink (SL) resource pool, which can be understood as a collection of SL resources.

[0103] For example, see the schematic diagram of the SL resource pool shown in Figure 1. In Figure 1, within a carrier bandwidth, a portion of the bandwidth (BWP) is allocated to the SL. The BWP allocated to the SL can be called the SLBWP. The time-frequency resources corresponding to the SLBWP can be further divided into multiple SL resource pools. Each SL resource pool can be configured with independent channels, such as physical sidelink control channels (PSCCH) or physical sidelink shared channels (PSSCH). Each SL resource pool performs independent sensing and resource allocation. The frequency domain resources in the SL resource pool can be further divided into finer-grained sub-channels. Resource allocation and data transmission are performed on a sub-channel basis, for example, allocating one or more consecutive sub-channels, or transmitting data on one or more consecutive sub-channels. A sub-channel can include multiple physical resource blocks (PRBs). A particular sub-channel can also be used to represent specific frequency domain location information.

[0104] This application embodiment involves an SLPRS dedicated resource pool, which can be the aforementioned 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, scheduling can be dynamic, semi-static, or periodic. Dynamic scheduling is achieved through downlink control information (DCI) indication; periodic scheduling is achieved through RRC signaling pre-configuration; and semi-static scheduling is achieved through a combination of RRC signaling pre-configuration and DCI indication. While SL resources support semi-static scheduling, how to implement semi-static scheduling of SLPRS resources within the SLPRS dedicated resource pool is currently a hot research topic. Furthermore, whether the current semi-static scheduling of SL resources is suitable for SLPRS resources remains unclear.

[0106] Therefore, embodiments of this application provide a scheduling method and communication device for SLPRS resources. This scheduling method refers to a semi-static scheduling method, specifically a semi-static scheduling method within an SLPRS dedicated resource pool. Embodiments of this application specify in the DCI which field indicates whether to activate or deactivate the semi-statically scheduled SLPRS resource, thereby enabling semi-static scheduling of SLPRS resources within the SLPRS dedicated resource pool, which helps save signaling overhead.

[0107] The network architecture of the embodiments of this application will be described below.

[0108] Please refer to Figure 2, which is a schematic diagram of a network architecture applying an embodiment of this application. The network architecture shown in Figure 2 may include network device 201, terminal device 202, and terminal device 203. The device configuration and number of devices shown in Figure 2 are for illustrative purposes only and do not constitute a limitation on the embodiments of this application. Figure 2 takes the example where both terminal device 202 and terminal device 203 are within the coverage area of ​​network device 201. It is also possible that terminal device 202 is within the coverage area of ​​network device 201, while terminal device 203 is not; or, terminal device 203 is within the coverage area of ​​network device 201, while terminal device 202 is not. That is to say, at least one terminal device is within the coverage area of ​​network device 201. Terminal devices within the coverage area of ​​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; upon receiving SLPRS, terminal device 203 can measure distance or angle, etc., by measuring SLPRS, thereby obtaining measurement results; terminal device 203 can send the measurement results to network device 201.

[0110] For example, under the control of network device 201, terminal device 203 can send SLPRS to terminal device 202; upon receiving SLPRS, terminal device 202 can measure distance or angle, etc., by measuring SLPRS, thereby obtaining measurement results; terminal device 202 can send the measurement results to network device 201.

[0111] Optionally, the network architecture shown in Figure 2 may also 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 functionality. Network device 201 can send received measurement results to the LMF 204, which can then analyze the results. Network device 201 can directly feed back measurement results to the LMF 204, or it can do so through other core network elements.

[0112] Please refer to Figure 3, which is a schematic diagram of another network architecture applying an embodiment of this 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 an 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 can include 4G sites (ng-eNBs) and 5G sites (gNBs) in 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 functions for the UE. An ng-eNB can be various types of base stations, access points, etc., and can also be a TRP (Transmission Measurement Function). Similarly, a gNB is a device or apparatus deployed in a radio access network that meets 5G standards and provides wireless communication functions for the UE. A gNB can be various types of base stations, access points, etc., and 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, primarily used to provide access management functions.

[0115] AMF 303 receives a location service request for UE 301. This request can be sent by other network elements in the NR core network or by the data network. AMF 303 forwards the received location service request to LMF 304, which processes the request and initiates the location procedure for UE 301. NG-RAN 302 is responsible for sending SLPRS to UE 301 and / or receiving SLPRS from UE 301, obtaining measurement results based on the SLPRS, and then sending the measurement results 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 this application embodiment will be described in detail below. For ease of description, the terminal device is UE as an example.

[0117] Please refer to Figure 4, which is a flowchart illustrating a scheduling method for SLPRS resources provided in an embodiment of this application. This method may include, but is not limited to, the following steps:

[0118] 401. The network device sends a DCI to the UE. Correspondingly, 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 identify the SLPRS resource, and the second field is used to indicate whether the SLPRS resource is activated or deactivated.

[0119] Understandably, the first field is used to identify the SLPRS resources, i.e., the pre-configured SLPRS resources. Pre-configured SLPRS resources refer to the SLPRS resources configured for the UE by the network device via RRC signaling. The second field is used to indicate whether the SLPRS resources are activated or deactivated.

[0120] The value of the second field is specifically used to indicate whether to activate the SLPRS resource when it is inactive, or to indicate whether to deactivate the SLPRS resource when it is active.

[0121] Optionally, the first field can be a resource indicator field or a configuration index field. The resource indicator field can be an SLPRS resource indicator field, such as the SLPRSresourceindicator field in DCI, which indicates the index of the SLPRS resource. The configuration index field can be, for example, the Configurationindex field in DCI, which indicates the configuration index, i.e., the configuration index of the semi-static configuration information, which is configured by RRC signaling. The configuration index can be associated with SLPRS resources, and this association can be configured in the semi-static configuration information. Semi-static can also describe semi-periodic, semi-persistent, or semi-persistent nature, indicating that after activation, transmission can occur periodically until it stops. The conditions for stopping include: the network device issuing a deactivation instruction; or reaching the maximum number of transmissions; or meeting certain rules, such as stopping according to a preset probability.

[0122] Optionally, the second field can be an activation indication field, a time-domain scheduling field, or a resource indication field. The activation indication field can be a newly added field in the DCI, used to indicate the activation or deactivation of the SLPRS resource determined based on the first field. For example, the activation indication field can be an SLPRS activation field. The time-domain scheduling field can be a time-domain resource scheduling field, such as the Timeresource assignment field in the DCI. This field is typically used to indicate the index of the scheduled SLPRS resource, and in this embodiment, certain values ​​of this field are reused to indicate the activation or deactivation of the SLPRS resource determined based on the first field. The resource indication field can be an SLPRS resource indication field, such as the SLPRSresourceindication field in the DCI. This field is typically used to indicate the time-domain information of the SLPRS resource, and in this embodiment, certain values ​​of this field are reused to indicate the activation or deactivation of the SLPRS resource determined based on the first field. The time-domain information of the SLPRS resource can be the time slot information of the SLPRS resource, indicating one or more time units, such as one or more time slots. For example, an SLPRS resource occupies 3 time slots, and the time domain information of the SLPRS resource indicates the index of these 3 time slots.

[0123] The first field has two optional fields, and the second field has three optional fields. These are provided as examples and do not constitute a limitation on the embodiments of this application. Based on the two optional fields of the first field and the three optional fields of the second field, various combinations can be obtained, which will be described in detail in the following methods 1 to 7, and will not be repeated here.

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

[0125] The UE receives the DCI, parses the first field and the second field from the DCI, and determines the SLPRS resource based on the first field. Optionally, the UE determines whether the SLPRS resource is active or inactive. For example, if the first field is the SLPRSresourceindication field, the UE determines the SLPRS resource based on the index of the SLPRS resource indicated by this field, and monitors whether the SLPRS resource is being used to transmit SLPRS and / or PSCCH. If it is not being used to transmit SLPRS and / or PSCCH, then the SLPRS resource is inactive; if it is being used to transmit SLPRS and / or PSCCH, then the SLPRS resource is active.

[0126] The UE can determine whether to activate the aforementioned SLPRS resource based on the value of the second field. Optionally, if the UE determines that the aforementioned SLPRS resource is inactive, it can determine whether to activate the aforementioned SLPRS resource based on the value of the second field. After activating the aforementioned SLPRS resource, the UE can transmit SLPRS and / or PSCCH through the aforementioned SLPRS resource.

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

[0128] The UE can determine whether to activate the aforementioned SLPRS resource based on the value of the second field. Optionally, when the UE determines that the aforementioned SLPRS resource is active, it can determine whether to activate the aforementioned SLPRS resource based on the value of the second field. After deactivating the aforementioned SLPRS resource, the UE can stop transmitting SLPRS and / or PSCCH through the aforementioned SLPRS resource.

[0129] In the embodiment shown in Figure 4, by combining the first and second fields in the DCI, the UE can activate or deactivate the semi-static SLPRS resources, thereby realizing the semi-static scheduling of 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, the network device sends a first RRC signaling to the UE. This first RRC signaling may include one or more of the following: a configuration index, a transmission period, and a maximum number of transmissions. The configuration index indicates the index of the semi-static configuration information. The transmission period indicates the transmission period of the SLPRS resource, in milliseconds (ms), for example, a minimum period of 100ms and a maximum period of 1000ms; the maximum period may be further increased as the standard evolves. The maximum number of transmissions indicates the maximum number of transmissions for the SLPRS resource associated with the semi-static configuration information.

[0132] For example, the semi-static configuration information of the first RRC signaling configuration can be as follows:

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

[0134] In another implementation, the network device sends a second RRC signaling to the UE. This second RRC signaling may include one or more of the following: a configuration index, a transmission period, a maximum number of transmissions, and SLPRS resources associated with the configuration index. The configuration index indicates the index of the semi-static configuration information. The transmission period indicates the transmission period of the SLPRS resource, in milliseconds (ms), for example, a minimum period of 100ms and a maximum period of 1000ms; the maximum period may be further increased 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. The SLPRS resource associated with the configuration index can also be described as the SLPRS resource associated with the semi-static configuration information.

[0135] For example, the semi-static configuration information of the second RRC signaling configuration can be as follows:

[0136] Here, 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 configures an additional sl-PRS-ResourceIDList, meaning it configures additional SLPRS resources associated with the index. 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; however, 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. Not including a resource indication field in the DCI is advantageous for shortening the DCI's bit length.

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

[0139] - Resource pool index: This field has a length of log2I rounded up to the nearest whole bit, 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 dedicated SLPRS resource pools configured by higher-level parameters; this field is used to indicate the resource pool to which the currently scheduled SLPRS resource belongs.

[0140] - Time Gap: This field is 3 bits long and is used to indicate the time slot deviation 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 indicates the index of the currently scheduled SLPRS resource;

[0144] - Configuration index: This field indicates 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 indicates whether an SLPRS resource is activated or deactivated.

[0146] Based on the two optional fields of the first field and the three optional fields of the second field, a variety of combinations can be obtained:

[0147] Method 1: The first field is the resource indicator field, and the second field is the activation indicator field.

[0148] The resource indicator field indicates the currently scheduled SLPRS resource, and the activation indicator field indicates whether the SLPRS resource is activated or deactivated. The resource indicator field indicates one or more SLPRS resources; specifically, it indicates the index of one or more SLPRS resources. The resource indicator field may also be called the SLPRS resource identifier (SLPRSresourceID) field or other names, which are not limited here.

[0149] Optionally, the activation indicator field has a length of 1 bit. The value of this 1 bit is used to indicate whether the SLPRS resource is activated or deactivated. When the 1 bit is of the first value, the SLPRS resource is inactive, and the activation indicator field is used to indicate activation of the SLPRS resource; when the 1 bit is of the second value, the SLPRS resource is active, and the activation indicator field is used to indicate deactivation of the SLPRS resource. The first and second values ​​can be the same. For example, when the 1 bit is 1, the SLPRS resource is inactive, and the activation indicator field indicates activation of the SLPRS resource; when the 1 bit is 1, the SLPRS resource is active, and the deactivation indicator field indicates deactivation of the SLPRS resource. The first and second values ​​can also be different. For example, when the 1 bit is 1, the SLPRS resource is inactive, and the activation indicator field indicates activation of the SLPRS resource; when the 1 bit is 0, the SLPRS resource is active, and the deactivation indicator field indicates deactivation of the SLPRS resource.

[0150] Optionally, the activation indicator field has a length of 2 bits. The value of these 2 bits is used to indicate whether the SLPRS resource is activated or deactivated. A third value indicates activation of the SLPRS resource; a fourth value indicates deactivation. Optionally, if the SLPRS resource is inactive when the third value is used, the activation indicator field indicates activation; if the SLPRS resource is active when the fourth value is used, the activation indicator field indicates deactivation. The third and fourth values ​​can be different; for example, a value of 01 indicates activation, and a value of 10 indicates deactivation. Other values ​​for these 2 bits can be used to indicate other functions, thereby saving DCI signaling overhead.

[0151] DCI may also include a configuration index field, based on which the transmission period and / or maximum number of transmissions of the SLPRS resource can be determined 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.

[0152] Method 2: The first field is the configuration index field, and the second field is the activation indicator field.

[0153] The configuration index field indicates the configuration index in the RRC signaling. The configuration index is associated with an SLPRS resource, and one configuration index can be associated with one SLPRS resource. The activation indicator field indicates whether to activate or deactivate the associated SLPRS resource.

[0154] Optionally, the activation indicator field has a length of 1 bit. The value of this 1 bit is used to indicate whether the SLPRS resource is activated or deactivated. When the 1 bit is of the first value, the SLPRS resource is inactive, and the activation indicator field is used to indicate activation of the SLPRS resource; when the 1 bit is of the second value, the SLPRS resource is active, and the activation indicator field is used to indicate deactivation of the SLPRS resource. The first and second values ​​can be the same. For example, when the 1 bit is 1, the SLPRS resource is inactive, and the activation indicator field indicates activation of the SLPRS resource; when the 1 bit is 1, the SLPRS resource is active, and the deactivation indicator field indicates deactivation of the SLPRS resource. The first and second values ​​can also be different. For example, when the 1 bit is 1, the SLPRS resource is inactive, and the activation indicator field indicates activation of the SLPRS resource; when the 1 bit is 0, the SLPRS resource is active, and the deactivation indicator field indicates deactivation of the SLPRS resource.

[0155] Optionally, the activation indicator field has a length of 2 bits. The value of these 2 bits is used to indicate whether the SLPRS resource is activated or deactivated. A third value indicates activation of the SLPRS resource; a fourth value indicates deactivation. Optionally, if the SLPRS resource is inactive when the third value is used, the activation indicator field indicates activation; if the SLPRS resource is active when the fourth value is used, the activation indicator field indicates deactivation. The third and fourth values ​​can be different; for example, a value of 01 indicates activation, and a value of 10 indicates deactivation. Other values ​​for these 2 bits can be used to indicate other functions, thereby saving 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] Method 2 can shorten the bit length of DCI compared to Method 1.

[0158] Method 3: The first field is the resource indication field, and the second field is the time-domain scheduling field.

[0159] The resource indicator field indicates the currently scheduled SLPRS resource, and the time-domain scheduling field indicates whether the SLPRS resource is activated or deactivated. The resource indicator field can be, for example, the SLPRSresourceindication field or the FirstSLPRSindicator field. The time-domain scheduling field can be, for example, the Timeresource assignment field or the ResourceIDindication field. Optionally, the resource indicator field can be the SLPRSresourceindication field, and the time-domain scheduling field can be the Timeresource assignment field. Optionally, the resource indicator field can be the FirstSLPRSindicator field, and the time-domain scheduling field can be the ResourceIDindication field. For a detailed explanation of the FirstSLPRSindicator and ResourceIDindication fields, please refer to Method 6.

[0160] In traditional communication, data retransmission can improve transmission success rate. Different data blocks are sent in different resource periods, rather than retransmitting only a portion of a single data block. For example, see Figure 5, where data block 1 is transmitted and retransmitted within a semi-static resource period, and data block 2 is transmitted in the next semi-static resource period. However, for SLPRS, only one SLPRS transmission is needed within each SLPRS resource period because SLPRS does not require retransmission. Measurement accuracy can be improved through joint estimation using transmissions across multiple SLPRS resource periods. Therefore, for one SLPRS transmission 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, where one SLPRS transmission occurs within a semi-static resource period. Furthermore, the time-domain scheduling field can be reused to indicate the activation or deactivation of SLPRS resources.

[0161] When the time-domain scheduling field takes the fifth value, it indicates activation of the SLPRS resource; when it takes the sixth value, it indicates deactivation. Optionally, if the time-domain scheduling field takes the fifth value and the SLPRS resource is inactive, then the time-domain scheduling field is used to indicate activation; if the time-domain scheduling field takes the sixth value and the SLPRS resource is active, then the time-domain scheduling field is used to indicate deactivation. For example, a time-domain scheduling field with all 1s indicates activation of the SLPRS resource; a time-domain scheduling field with all 0s indicates deactivation.

[0162] The length of the time-domain scheduling field can be calculated based on system configuration parameters. For example, the length can be determined based on the number of SLPRS resources, or based on the maximum number of resource reservations. For instance, the time-domain scheduling field can be 5 bits long. When these 5 bits are 11111, it indicates that the SLPRS resource is activated; when these 5 bits are 00000, it indicates that the SLPRS resource is deactivated.

[0163] Optionally, the fifth and sixth values ​​mentioned above are predefined, such as those predefined by the protocol. That is, when the fixed time-domain scheduling field is set to the fifth value, it indicates that the SLPRS resource is activated; when the fixed time-domain scheduling field is set to the sixth value, it indicates that the SLPRS resource is deactivated.

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

[0165] For example, the contents of this 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, which correspond to the first parameter and the second parameter mentioned above, respectively.

[0166] DCI may also include a configuration index field, based on which the transmission period and / or maximum number of transmissions of the SLPRS resource can be determined 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.

[0167] Method 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, and the configuration index is associated with the SLPRS resource; the time-domain scheduling field indicates whether the associated SLPRS resource is activated or deactivated. Method 4 also reuses the time-domain scheduling field to indicate whether the SLPRS resource is activated or deactivated. Please refer to the specific description of the time-domain scheduling field in Method 3, which 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] Method 5: The first field is a resource indicator field, and the second field is a resource indicator field.

[0171] In Method 5, the resource indicator field can be used to indicate both the index of the currently scheduled SLPRS resource and to indicate whether the SLPRS resource is activated or deactivated. In other words, the resource indicator 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 indicator field can be an SLPRSresourceindication field or a ResourceIDindication field, etc. For a detailed explanation of the ResourceIDindication field, please refer to Method 6.

[0172] Considering that SLPRS does not require retransmission, joint estimation can be performed through transmissions over multiple SLPRS resource periods to improve measurement accuracy. For example, see Figure 6, where SLPRS is transmitted once within a semi-static resource period. Therefore, the activation or deactivation of SL PRS resources can be indicated by the values ​​of other SLPRS resource indices in the resource indicator field besides the first SLPRS resource index. Since a single DCI requires multiple transmissions to activate semi-static SLPRS resources, to reduce DCI indication overhead, the SLPRS resource indices can be designed to be the same across different semi-static resource periods; that is, semi-static SLPRS resources are used for periodic transmissions of the same SLPRS. The transmission period can be the period of a physical time slot or a logical time slot; that is, within the time slot occupied by the SL system, SLPRS resources are transmitted at fixed time intervals. Since SLPRS does not retransmit within a semi-static resource period, the resource indicator field can be reused to indicate the activation or deactivation of SLPRS resources.

[0173] Optionally, the resource indicator field can be set to a first set of values, indicating activation of the SLPRS resource; or a second set of values, indicating deactivation of the SLPRS resource. Alternatively, if the resource indicator field is set to the first set of values ​​and the SLPRS resource is inactive, the resource indicator field is used to indicate activation; if the resource indicator field is set to the second set of values ​​and the SLPRS resource is active, the resource indicator field is used to indicate deactivation. The first set of values ​​includes one or more values, and the second set of values ​​includes one or more values. Each set of values ​​represents one or more values, and each value represents the index of the SLPRS resource in a time unit, such as a time slot. For example, both the first and second sets of values ​​may include three values: the first value 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 resource indicator field can be set to the seventh value, indicating activation of the SLPRS resource; or the resource indicator field can be set to the eighth value, indicating deactivation of the SLPRS resource. Alternatively, if the resource indicator field is set to the seventh value and the SLPRS resource is inactive, the resource indicator field is used to indicate activation of the SLPRS resource; if the resource indicator field is set to the eighth value and the SLPRS resource is active, the resource indicator field is used to indicate deactivation of the SLPRS resource. The seventh and eighth values ​​are different. 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 and second groups of values ​​consist of three values, each consisting of two bits. Therefore, the seventh value can be one of these six bits, and the eighth value can be another.

[0175] It is understandable that when the resource indicator field takes 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 resource indicator field takes 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 resource indication field indicates the first SLPRS resource index, which is used to indicate the first SLPRS resource. The UE defaults to the subsequent SLPRS resource indices being the same as the first SLPRS resource index. The resource indication field also indicates the i-th SLPRS resource index, which is used to indicate whether the SLPRS resource is activated or deactivated. 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 any of the scheduled time slots other than the first time slot. For example, if three time slots are scheduled, the i-th time slot could be the second or third time slot. In other words, the i-th SLPRS resource index is not used to indicate the i-th SLPRS resource itself, but rather to indicate whether the SLPRS resource is activated or deactivated. Optionally, when the i-th SLPRS resource index indicated by the resource indicator field is the ninth value or a value from the third group, the SLPRS resource is inactive, indicating activation of the SLPRS resource; when the i-th SLPRS resource index indicated by the resource indicator field is the tenth value or a value from the fourth group, the SLPRS resource is active, indicating deactivation of the SLPRS resource. The ninth value can be understood as any value from the first group (not the value of the SLPRS resource index in the first time slot), and the tenth value can be understood as any value from the second group (not the value of the SLPRS resource index in the first time slot). The third group includes one or more values, and the fourth group includes one or more values. In other words, a value of the i-th SLPRS resource index from any value in the third group indicates activation of the SLPRS resource; a value of the i-th SLPRS resource index from any value in the fourth group indicates deactivation of the SLPRS resource.

[0177] For example, if 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; if the SLPRS resource index in the second time slot is all 0s, it indicates that the SLPRS resource is deactivated. Alternatively, if 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; if the SLPRS resource index in the third time slot is all 0s, it indicates that the SLPRS resource is deactivated.

[0178] Optionally, the seventh and eighth values ​​mentioned above are predefined. Alternatively, the first and second sets of values ​​mentioned above are predefined. Alternatively, the ninth and tenth values ​​mentioned above are predetermined. Alternatively, the third and fourth sets of values ​​mentioned above are predefined. Optionally, the ninth and / or tenth values ​​mentioned above can be indicated by the network device. Alternatively, the third and / or fourth sets of values ​​mentioned above can be indicated by the network device. For example, the network device sends RRC signaling to the UE, which is used to configure the third and / or fourth parameters, where the third parameter indicates the ninth value and the fourth parameter indicates the tenth value; or, the third parameter indicates the third set of values ​​and the fourth parameter indicates the fourth set of values.

[0179] For example, the contents of this 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, which correspond to the third and fourth parameters mentioned above, respectively.

[0180] DCI may also include a configuration index field, based on which the transmission period and / or maximum number of transmissions of the SLPRS resource can be determined 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.

[0181] Method 6: The first field is the first resource indicator field, and the second field is the second resource indicator field.

[0182] In Method 6, the first resource indicator field indicates the SLPRS resource to be activated or deactivated, and the second resource indicator field indicates whether the SLPRS resource is activated or deactivated. The first resource indicator field indicates the SLPRS resource in the first time slot, and the index of the SLPRS resource in future time slots is the same as the index of the SLPRS resource in the first time slot by default. Optionally, the first resource indicator field can be the FirstSLPRSindicator field in the DCI, and the second resource indicator field can be the ResourceIDindication field in the DCI.

[0183] Since SLPRS does not require retransmission, there is no need to indicate the reserved non-periodic SLPRS resources through the second resource indicator field. Therefore, the second resource indicator field can be reused to activate or deactivate the SLPRS resources corresponding to the first resource indicator field.

[0184] For method 6, the DCI can be DCI format3_2, which may include one or more of the following fields:

[0185] - Resource pool index: This field has a length of log2I rounded up to the nearest whole bit, 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 dedicated SLPRS resource pools configured by higher-level parameters; this field is used to indicate the resource pool to which the currently scheduled SLPRS resource belongs.

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

[0187] - First SLPRS indicator: This field indicates the first SLPRS resource, i.e., the SLPRS in the first time slot; the index of the SLPRS resource in future time slots 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 ID indication: This field is used to indicate reserved non-periodic SLPRS resources. In mode 7, it is used to indicate whether to activate or deactivate SLPRS resources.

[0191] - Configuration index: This field indicates 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 it indicates the configuration index in the second RRC signaling, 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 indicator field is the eleventh value, it indicates that the SLPRS resource is activated; when the value of the second resource indicator field is the twelfth value, it indicates that the SLPRS resource is deactivated.

[0193] The eleventh and twelfth values ​​can be predefined. Alternatively, the eleventh and / or twelfth values ​​can be indicated by the network device. The network device's indication of the eleventh and / or twelfth values ​​can refer to the network device's indication of the fifth and / or sixth values.

[0194] Method 7: The first field is the configuration index field, and the second field is the resource indicator field.

[0195] The configuration index field indicates the configuration index in the RRC signaling, which is associated with the SLPRS resource; the resource indication field indicates whether the associated SLPRS resource is activated or deactivated. This RRC signaling can be the second RRC signaling mentioned above.

[0196] When configuring an index associated with the SLPRS field, the resource indicator field does not need to indicate the SLPRS resource. This field is used to indicate whether the associated SLPRS resource is activated or deactivated. The resource indicator field's indication of SLPRS activation or deactivation is described in detail in Method 5, and will not be repeated here. Optionally, the resource indicator field can also be the second resource indicator field as described 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] Methods 1-7 described above are for illustrative purposes only. The embodiments of this application do not exclude the possibility of reusing other fields in DCI to indicate the activation or deactivation of SLPRS resources.

[0199] This application provides a communication device that can be used to implement the functions of the aforementioned UE or network device. The communication device can be a UE or a network device. The communication device includes units corresponding to the methods / operations / steps / actions performed by the UE or network device in the above method embodiments. These units can be hardware circuits, software, or a combination of hardware circuits and software. Please refer to Figure 8, which shows a schematic diagram of the structure of a communication device 800 according to an embodiment of this 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, which can be data received by the interface unit 801, and the processed signaling and / or data can also be sent by the interface unit 801.

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

[0201] Interface unit 801 is used to receive downlink control information from network device, the downlink control information including a first field and a second field; wherein, the first field is used to determine the lateral positioning reference signal resource, and the second field is used to indicate the activation or deactivation of the lateral positioning reference signal resource;

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

[0203] In this embodiment, the specific implementation of the interface unit 801 and the processing unit 802 can be found in the specific implementation steps of the UE in Figure 4, and will not be repeated here.

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

[0205] Interface unit 801 is used to send downlink control information to terminal equipment. The downlink control information includes a first field and a second field. The first field is used to determine the side-link positioning reference signal resource. The second field is used to indicate whether the positioning reference signal resource is activated or deactivated.

[0206] In this embodiment, the specific implementation of the interface unit 801 and the processing unit 802 can be found in the specific implementation steps of the network device in Figure 4, and will not be repeated here.

[0207] Figure 9 illustrates a communication device 900 provided in an embodiment of this application, used to implement the functions of the aforementioned UE or network device. This device can be a communication device or a device used within a communication device. The communication device can be a UE or a network device. The device used within the communication device can be a chip system or a chip within the communication device. The chip system can be composed of chips or can include chips and other discrete components.

[0208] The communication device 900 includes at least one processor 910 for implementing the processing functions of the device (e.g., UE or network device) in the methods provided in this application embodiment. The communication device 900 may also include a communication interface 920 for implementing the transmit and receive operations of the device (e.g., UE or network device) in the methods provided in this application embodiment. In this application embodiment, the communication interface may be a transceiver, circuit, bus, 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 transmit and receive data and is used to implement the methods described in the above method embodiments.

[0209] The communication device 900 may further 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 this embodiment is an indirect coupling or communication connection between devices, units, or modules, and may be electrical, mechanical, or other forms, 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 memories may be included in the processor.

[0210] This embodiment does not limit the specific connection medium between the communication interface 920, processor 910, and memory 930. In Figure 9, the memory 930, processor 910, and communication interface 920 are connected via a bus, indicated by a thick line. The connection methods between other components are merely illustrative and not intended to be limiting. The bus can be categorized as an address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used in Figure 9, but this does not imply that there is only one bus or one type of bus.

[0211] When the communication device 900 is specifically a device used in an equipment (e.g., a UE or network device), for example, when the communication device 900 is specifically a chip or chip system, the communication interface 920 may output or receive baseband signals. When the communication device 900 is specifically a device (e.g., a UE or network device), the communication interface 920 may output or receive radio frequency signals. In the embodiments of this 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, capable of implementing or executing the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or being executed by a combination of hardware and software modules in the processor.

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

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

[0214] When the aforementioned communication device is a chip used in a network device, the chip implements the functions of the network device in the above method embodiments. 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 this application can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor.

[0216] The method steps in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist 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, portable hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Alternatively, the ASIC can reside in an access network device or terminal. Of course, the processor and storage medium can also exist as discrete components in the terminal or access network device.

[0217] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially 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 instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer program or instructions can be stored in a computer-readable storage medium or transmitted through 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, hard disk, or magnetic tape; it can also be an optical medium, such as a DVD; or it can be a semiconductor medium, such as a solid-state drive (SSD).

[0218] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0219] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

[0220] This application also provides a computer-readable storage medium storing computer-executable instructions. When the computer-executable instructions are executed, the method executed by the UE or network device in the above method embodiments is implemented.

[0221] This application also provides a computer program product, which includes a computer program that, when executed, causes the method executed by the UE or network device in the above method embodiments to be implemented.

[0222] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0223] The descriptions of the various embodiments provided in this application can be referenced mutually. Each embodiment has its own emphasis, and parts not described in detail in a certain embodiment can be referred to the relevant descriptions of other embodiments. For the sake of convenience and brevity, for example, the functions and execution steps of the various devices and equipment provided in the embodiments of this application can be referred to the relevant descriptions of the method embodiments of this application. The method embodiments and the device embodiments can also be referenced, combined or cited from each other.

[0224] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A method for scheduling lateral positioning reference signal resources, characterized in that, The method includes: The system receives 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 lateral positioning reference signal resources; and the second field is used to indicate activation or deactivation of the lateral positioning reference signal resources. In response to the value of the second field, the side-line positioning reference signal resource is activated; In response to the value of the second field, the lateral positioning reference signal resource is deactivated.

2. The method as described in claim 1, characterized in that, The second field is an activation indicator field, and the field length of the activation indicator field is 1 bit; The activation indication field takes the value of the first value and the lateral positioning reference signal resource is in an inactive state. The activation indication field is used to indicate the activation of the lateral positioning reference signal resource. The activation indication field takes the value of the second value and the lateral positioning reference signal resource is in an active state. The activation indication field is used to indicate the deactivation of the lateral positioning reference signal resource. The first value may be the same as or different from the second value.

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

4. The method as described in claim 1, characterized in that, The second field is the time-domain scheduling field; The time-domain scheduling field takes the fifth value, and the time-domain scheduling field is used to indicate the activation of the side-line positioning reference signal resource; The time-domain scheduling field takes the sixth value, and the time-domain scheduling field is used to indicate the deactivation of the side-line positioning reference signal resource; The fifth value is different from the sixth value.

5. The method as described in claim 4, characterized in that, The method further includes: Receive a first parameter and / or a second parameter 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 as described in claim 1, characterized in that, The second field is the resource indicator field; The resource indication field takes the value of the seventh value or the first group of values, and the resource indication field is used to indicate the activation of the lateral positioning reference signal resource; The resource indication field takes the value of the eighth value or the second group of values, and the resource indication field is used to indicate the deactivation of the lateral positioning reference signal resource; 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.

7. The method as described in claim 6, characterized in that, The resource indication field indicates that the index of the i-th lateral positioning reference signal resource is the ninth value or the third group of values, and the resource indication field is specifically used to indicate the activation of the lateral positioning reference signal resource; The resource indication field indicates that the index of the i-th lateral positioning reference signal resource is the tenth value or the fourth group value, and the resource indication field is specifically used to indicate the deactivation of the lateral positioning reference signal resource; Where 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 as described in claim 7, characterized in that, The method further includes: Receive a third parameter and / or a fourth parameter from the network 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.

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

10. The method as described in claim 9, characterized in that, The downlink control information also includes a configuration index field, which is used to determine the transmission period and / or maximum number of transmissions of the lateral positioning reference signal resource.

11. The method as described in claim 9, characterized in that, The method further includes: Receive a first radio resource control signaling from the network device, the first radio resource control signaling being used to configure the transmission period and / or the maximum number of transmissions.

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

13. The method as described in claim 12, characterized in that, The configuration index field is also used to determine the transmission period and / or maximum number of transmissions of the lateral positioning reference signal resource.

14. The method as described in claim 12, characterized in that, The method further includes: The network device receives a second radio resource control signaling message, the second radio resource control signaling message being used to configure the transmission period, the maximum number of transmissions, the configuration index, and at least one of the side-line positioning reference signal resources associated with the configuration index.

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

16. The method as described in claim 15, characterized in that, The second field is an activation indicator field, and the field length of the activation indicator field is 1 bit; The activation indication field takes the value of the first value and the lateral positioning reference signal resource is in an inactive state. The activation indication field is used to indicate the activation of the lateral positioning reference signal resource. The activation indication field takes the value of the second value and the lateral positioning reference signal resource is in an active state. The activation indication field is used to indicate the deactivation of the lateral positioning reference signal resource. The first value may be the same as or different from the second value.

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

18. The method as described in claim 15, characterized in that, The second field is the time-domain scheduling field; The time-domain scheduling field takes the fifth value, and the time-domain scheduling field is used to indicate the activation of the side-line positioning reference signal resource; The time-domain scheduling field takes the sixth value, and the time-domain scheduling field is used to indicate the deactivation of the side-line positioning reference signal resource; The fifth value is different from the sixth value.

19. The method as described in claim 18, characterized in that, The method further includes: Send a first parameter and / or a second parameter to the terminal device, wherein the first parameter is used to indicate the fifth value and the second parameter is used to indicate the sixth value.

20. The method as described in claim 15, characterized in that, The second field is the resource indicator field; The resource indication field takes the value of the seventh value or the first group of values, and the resource indication field is used to indicate the activation of the lateral positioning reference signal resource; The resource indication field takes the value of the eighth value or the second group of values, and the resource indication field is used to indicate the deactivation of the lateral positioning reference signal resource; 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.

21. The method as described in claim 20, characterized in that, The resource indication field indicates that the index of the i-th lateral positioning reference signal resource is the ninth value or the third group of values, and the resource indication field is specifically used to indicate the activation of the lateral positioning reference signal resource; The resource indication field indicates that the index of the i-th lateral positioning reference signal resource is the tenth value or the fourth group value, and the resource indication field is specifically used to indicate the deactivation of the lateral positioning reference signal resource; Where 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 as described in claim 21, characterized in that, The method further includes: Send a third parameter and / or a fourth parameter 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 15-22, characterized in that, The first field is a resource indication field, which is used to indicate the index of the lateral positioning reference signal resource.

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

25. A communication device, characterized in that, Includes modules for performing the method as described in any one of claims 1 to 14, or modules for performing the method as described in any one of claims 15 to 24.

26. A communication device, characterized in that, Includes a processor configured to implement the method as described in any one of claims 1 to 14, or the method as described in any one of claims 15 to 24, by means of logic circuitry and / or by executing a computer program or instructions.

27. The communication device according to claim 26, characterized in that, Also includes: A memory for storing the computer program or instructions.

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

29. A computer-readable storage medium, characterized in that, The storage medium stores a computer program or instructions, which, when executed by a communication device, implement the method as described in any one of claims 1 to 14; or the method as described in any one of claims 15 to 24.

30. A computer program product, characterized in that, Includes computer program code that, when executed, implements the method as described in any one of claims 1 to 14; or the method as described in any one of claims 15 to 24.

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