WO2022011684A1

WO2022011684A1 - Path loss reference signal configuration method, terminal device, and network device

Info

Publication number: WO2022011684A1
Application number: PCT/CN2020/102706
Authority: WO
Inventors: 尤心
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2022-01-20
Also published as: CN115918008A

Abstract

Embodiments of the present application relate to a path loss reference information configuration method, a terminal device, and a network device. The path loss reference information configuration method comprises: receiving a first media access control (MAC) control element (CE), wherein the first MAC CE is used for configuring, for the terminal device, a path loss reference signal of a sounding reference signal (SRS) for positioning. According to the embodiments of the present application, the path loss reference signal of the SRS for positioning can be configured by using a MAC CE, thereby saving an RRC signaling overhead and reducing a time delay.

Description

Path loss reference signal configuration method, terminal device and network device

technical field

The present application relates to the field of communications, and more particularly, to a configuration method, terminal device and network device for path loss reference information.

Background technique

Sounding Reference Signal (SRS, Sounding Reference Signal) is one of the main reference signals used for positioning. Based on the SRS sent by the UE, the network side can measure the time of arrival, signal strength, and inclination of arrival of the SRS to determine the location information of the UE. The pathloss reference signal (pathloss reference RS) of the current SRS for positioning (SRS for positioning, or positioning SRS) is configured by Radio Resource Control (RRC, Radio Resource Control); if the network side needs to update the SRS used for positioning The path loss reference signal needs to be notified to the UE through an RRC reconfiguration message, which increases the RRC signaling overhead and also has a relatively large delay.

SUMMARY OF THE INVENTION

An embodiment of the present application provides a method for configuring path loss reference information, the method is applied to a terminal device, and the method includes:

receiving a first medium access control (MAC) control element (CE);

Wherein, the first MAC CE is used to configure the path loss reference signal of the SRS used for positioning for the terminal device.

The embodiment of the present application also provides another method for configuring path loss reference information. The method is applied to a network device, and the method includes:

Send the first MAC CE; wherein, the first MAC CE is used to configure the path loss reference signal of the SRS used for positioning for the terminal device.

The embodiment of the present application also provides a terminal device, including:

A receiving module, configured to receive a first MAC CE; wherein, the first MAC CE is used to configure a path loss reference signal of the SRS used for positioning for the terminal device.

The embodiment of the present application also provides a network device, including:

A sending module, configured to send a first MAC CE; wherein, the first MAC CE is used to configure a path loss reference signal of the SRS used for positioning for the terminal device.

An embodiment of the present application further provides a terminal device, including: a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute a method such as path loss reference information. The method described in any one of the configuration methods.

An embodiment of the present application further provides a network device, including: a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute a method such as path loss reference information. The method described in any one of the configuration methods.

An embodiment of the present application further provides a chip, including: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes any one of the methods for configuring path loss reference information method.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method described in any one of the methods for configuring path loss reference information.

Embodiments of the present application further provide a computer program product, including computer program instructions, the computer program instructions causing a computer to execute the method described in any one of the methods for configuring path loss reference information.

Embodiments of the present application further provide a computer program, the computer program causing a computer to execute the method described in any one of the methods for configuring path loss reference information.

The embodiment of the present application utilizes the MAC CE to configure the path loss reference signal of the SRS used for positioning, and implements the update of the path loss reference signal of the SRS used for positioning, which can save RRC signaling overhead and reduce delay.

Description of drawings

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.

FIG. 2 is an implementation flowchart of a method 200 for configuring path loss reference information according to an embodiment of the present application.

3 is a schematic structural diagram of the first MAC CE of Embodiment 1 of the present application.

FIG. 4 is a schematic structural diagram of the existing SRS Pathloss Reference RS Update MAC CE.

5 is a schematic structural diagram of the first MAC CE of Embodiment 3 of the present application.

6 is a schematic structural diagram of a path loss reference signal information (Pathloss reference RS info) part in the first MAC CE of Embodiment 3 of the present application.

FIG. 7 is an implementation flowchart of a method 700 for configuring path loss reference information according to an embodiment of the present application.

FIG. 8 is a schematic structural diagram of a terminal device 800 according to an embodiment of the present application.

FIG. 9 is a schematic structural diagram of a network device 800 according to an embodiment of the present application.

FIG. 10 is a schematic structural diagram of a communication device 1000 according to an embodiment of the present application.

FIG. 11 is a schematic structural diagram of a chip 1100 according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

It should be noted that the terms "first" and "second" in the description and claims of the embodiments of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. order. The objects described by "first" and "second" described at the same time may be the same or different.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a wideband Code Division Multiple Access (CDMA) system (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced long term evolution, LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum (NR-U) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5th-Generation , 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), and vehicle to vehicle (Vehicle to Vehicle, V2V) communication, etc., the embodiments of the present application can also be applied to these communications system.

Optionally, the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.

This embodiment of the present application does not limit the applied spectrum. For example, the embodiments of the present application may be applied to licensed spectrum, and may also be applied to unlicensed spectrum.

The embodiments of this application describe various embodiments in conjunction with network equipment and terminal equipment, where: terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc. The terminal device can be a station (STAION, ST) in the WLAN, and can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems, such as terminal devices in NR networks or Terminal equipment in the future evolved Public Land Mobile Network (Public Land Mobile Network, PLMN) network, etc.

As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.

A network device can be a device used to communicate with a mobile device. The network device can be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, or a WCDMA A base station (NodeB, NB), it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, wearable device, and network equipment (gNB) in NR networks Or network equipment in the PLMN network that evolves in the future.

In this embodiment of the present application, a network device provides services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (for example, a frequency domain resource). The cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell), where the small cell can include: Metro cell, Micro cell, Pico cell cell), Femto cell, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.

FIG. 1 exemplarily shows one network device 110 and two terminal devices 120. Optionally, the wireless communication system 100 may include a plurality of network devices 110, and the coverage of each network device 110 may include other numbers The terminal device 120 is not limited in this embodiment of the present application. The embodiments of the present application may be applied to one terminal device 120 and one network device 110 , and may also be applied to one terminal device 120 and another terminal device 120 .

Optionally, the wireless communication system 100 may further include other network entities such as a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF). This is not limited.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

In the prior art, RRC is used to configure the path loss reference signal of the SRS for positioning, as follows:

When the path loss reference signal of the SRS used for positioning needs to be updated, the network side notifies the UE through an RRC reconfiguration message, which increases the RRC signaling overhead and increases the delay. At present, a method of updating the path loss reference signal of a common SRS based on a medium access control (MAC, Medium Access Control) control unit (CE, Control Element) is introduced, wherein the aforementioned common SRS may refer to other SRSs different from those used for positioning SRS. The MAC CE is the SRS Pathloss Reference Signal Update MAC CE (SRS Pathloss Reference RS Update MAC CE). Since the path loss reference signal of the common SRS is different from the path loss reference signal of the SRS used for positioning, the existing SRS Pathloss Reference RS Update MAC CE cannot be directly applied to update the path loss reference signal of the SRS used for positioning. The embodiment of the present application proposes a new MAC CE, which is used to configure the path loss reference signal of the SRS used for positioning. Alternatively, the embodiments of the present application extend the existing SRS Pathloss Reference RS Update MAC CE, or extend the existing MAC CE for other purposes, to configure the SRS path loss reference signal used for positioning. The aforementioned configuration may refer to the initial configuration of the path loss reference signal by the network device for the terminal device, or may refer to the network device updating the path loss reference signal for the terminal device after the initial configuration. In the following embodiments, the foregoing modes will be described in detail with reference to the accompanying drawings.

An embodiment of the present application proposes a method for configuring path loss reference information. FIG. 2 is an implementation flowchart of a method 200 for configuring path loss reference information according to an embodiment of the present application. The method can optionally be applied to the method shown in FIG. 1 . The system shown in FIG. 1 is, for example, applied to the terminal equipment in the system shown in FIG. 1 , but is not limited thereto. The method includes at least some of the following.

S210: Receive a first medium access control (MAC) control element (CE).

Optionally, the first MAC CE is used to update the path loss reference signal of the SRS used for positioning for the terminal equipment; or, the first MAC CE can also be used to initially configure the path loss of the SRS used for positioning for the terminal equipment. reference signal.

According to the received first MAC CE, the UE can obtain the path loss reference signal of the SRS configured for it by the network side for positioning.

Optionally, the above-mentioned first MAC CE is used to configure the path loss reference signal used by the SRS resource set (SRS resource set) of the SRS used for positioning for the terminal equipment; The path loss reference signal used by the SRS resource (SRS resource) of the positioned SRS. Therefore, it is used to indicate the pathloss reference signal (pathloss reference RS) to be used by the SRS resource set, or to indicate the pathloss reference RS to be used by the SRS resource.

In some embodiments, the path loss reference signal indicated by the first MAC CE includes at least one of the following:

Serving Cell Synchronization Signal Block (SSB);

Neighboring cell SSB;

Downlink (DL, Downlink) Positioning Reference Signal (PRS, Positioning Reference Signal);

Channel State Information (CSI, Channel State Information) - Reference Signal (RS, Reference Signal);

Correspondingly, the above-mentioned first MAC CE indicates at least one of the following:

The identity of the serving cell SSB;

The identity of the SSB of the neighboring cell and the cell information corresponding to the SSB of the neighboring cell;

The identity of the DL PRS;

The identifier of the CSI-RS.

Wherein, the serving cell SSB, the neighboring cell SSB, and the DL PRS are the types of the existing SRS path loss reference signals used for positioning, and a new path loss reference signal of the SRS used for positioning can be extended in this embodiment of the present application type of CSI-RS.

When the path loss reference signals configured by the first MAC CE are of the above-mentioned different types, the first MAC CE correspondingly indicates the identification information of the above-mentioned different types of path loss reference signals; optionally, the first MAC CE may also include path loss Other relevant information about the reference signal.

For example, when the path loss reference signal configured by the first MAC CE includes the serving cell SSB, the first MAC CE indicates the identity of the serving cell SSB, such as the index of the serving cell SSB. Wherein, the indication may refer to that the first MAC CE includes the identification of the SSB of the serving cell, or it may refer to the first MAC CE that includes other information that can indirectly indicate the identification of the SSB of the serving cell. In the following examples, the word "indicate" has the same meaning as here. Further, the first MAC CE may also indicate cell information corresponding to the serving cell SSB, such as a physical cell identifier (PCI, Physical Cell ID).

For another example, in the case that the path loss reference signal configured by the first MAC CE includes the SSB of the neighboring cell, the first MAC CE indicates the identity of the SSB of the neighboring cell and the cell information corresponding to the SSB of the neighboring cell. The identifier of the SSB of the neighboring cell may specifically be the index of the SSB of the serving cell, and the cell information corresponding to the SSB of the neighboring cell may specifically be the PCI.

For another example, in the case where the path loss reference signal configured by the first MAC CE includes a DL PRS, the first MAC CE indicates an identifier of the DL PRS, such as an index of the DL PRS. Further, the first MAC CE may also indicate configuration information to which the DL PRS belongs. Optionally, the configuration information to which the DL PRS belongs includes the resource set identifier of the DL PRS and/or the resource identifier of the DL PRS, such as including the index of the resource set of the DL PRS and/or the index of the resource of the DL PRS.

For another example, in the case that the path loss reference signal configured by the first MAC CE includes CSI-RS, the first MAC CE indicates the identifier of the CSI-RS.

In order to be able to configure the above-mentioned different types of path loss reference signals, optionally, in this embodiment of the present application, the length of the identifier of the path loss reference signal in the first MAC CE is set to 8 bits (bit).

Since the first MAC CE can indicate different types of path loss reference signals, in some embodiments, the first MAC CE may include first indication information for indicating the type of the path loss reference signal updated this time.

For example, if there are three types of path loss reference signals, including serving cell SSB, neighboring cell SSB, and DL PRS; then, the length of the first indication information may be 1 bit (bit), and two of the 1-bit first indication information Different values respectively indicate that the type of the path loss reference signal is SSB or DL PRS. Further, the length of the first indication information may be 2 bits, and in the case that the type of the indication path loss reference signal is SSB, the serving cell SSB and the neighboring cell SSB are further distinguished.

In addition, the first MAC CE can also indicate which bandwidth part (BWP, BandWidth Part) of which serving cell the updated path loss reference signal is applied to, and which path loss reference signal of which SRS resource set is updated; accordingly, the The first MAC CE may indicate at least one of the following to indicate the above information:

the identity of the serving cell;

UL BWP logo;

The identifier of the SRS resource set.

In some embodiments, the above-mentioned first MAC CE may be a newly defined MAC CE for the SRS used for positioning, or an extended existing SRS Pathloss Reference RS Update MAC CE. Alternatively, the embodiment of the present application may also extend an existing MAC CE, which is used to activate or deactivate the SRS used for positioning, and indicates the spatial relationship corresponding to the SRS resource, such as SP Positioning SRS Activation/Deactivation MAC CE ); this MAC CE may be referred to as the second MAC CE. In the aforementioned two implementations of extending the existing MAC CE, in the first MAC CE generated after the extension, in addition to the relevant information indicating the path loss reference signal, it also indicates the original information in the MAC CE before the extension, which will be described later. Details are described in Example 2 and Example 3.

Example 1:

3 is a schematic structural diagram of the first MAC CE of Embodiment 1 of the present application. The first MAC CE is a new MAC CE introduced for the SRS used for positioning, and is used to configure the path loss reference signal of the SRS used for positioning.

Optionally, the first MAC CE indicates the path loss reference signal to be used by the SRS resource set; and/or the path loss reference signal to be used by the SRS resource.

As shown in Figure 3, the first MAC CE includes the following fields:

Serving Cell ID (Serving Cell ID) field: This field is used to indicate the identity of the serving cell. Among them, the activated SRS resource set is included. The length of this field can be set to 5 bits.

BWP ID (BWP ID) field: This field indicates the upstream (UL) bandwidth part (BWP) as a code point for the DCI bandwidth part indicator field specified in TS38.212 [9]. Among them, the activated SRS resource set is included. The length of this field can be set to 2 bits.

SRS Resource Set ID (SRS Resource Set ID) field: This field indicates the ID of the SRS resource set, which may be the SRS-PosResourceSetId specified in TS 38.331 [5]. The length of this field can be set to 4 bits.

Pathloss Reference RS ID field: This field indicates the ID of the Path Loss Reference Signal, which may be srs-PathlossReferenceRS-pos-Id specified in TS 38.331 [5]. The length of this field can be set to 8 bits.

In this embodiment, the path loss reference signal indicated by the first MAC CE may include the following:

serving cell SSB;

Neighboring cell SSB;

DL PRS;

CSI-RS.

Correspondingly, the above-mentioned Pathloss Reference RS ID field may specifically indicate the identity of the SSB of the serving cell, the identity of the SSB of the neighboring cell, the identity of the DL PRS, and the identity of the CSI-RS.

When the path loss reference signal indicated by the first MAC CE is the serving cell SSB, optionally, the first MAC CE can also indicate cell information corresponding to the serving cell, such as PCI.

When the path loss reference signal indicated by the first MAC CE is the adjacent cell SSB, the first MAC CE also indicates the cell information corresponding to the adjacent cell, such as PCI.

As shown in FIG. 3 , in order to indicate the above-mentioned PCI, the first MAC CE may include a PCI field, which is used to indicate the cell information corresponding to the serving cell SSB or the neighboring cell SSB; The identifier may be the PhysCellId specified in TS 38.331 [5] and/or TS 37.355 [23]. The length of this field can be set to 10 bits. Optionally, when the path loss reference signal indicated by the first MAC CE is the serving cell SSB, the first MAC CE may or may not include the PCI field; if the PCI field is not included, the first MAC CE does not include the PCI field in FIG. 3 . 6th byte (Oct6) and 7th byte (Oct7) shown. When the path loss reference signal indicated by the first MAC CE is the adjacent cell SSB, the first MAC CE includes a PCI field for indicating the PCI corresponding to the adjacent cell.

When the path loss reference signal indicated by the first MAC CE is a DL PRS, the first MAC CE may also indicate configuration information to which the DL PRS belongs, such as a resource set identifier (DL-PRS Resource Set ID) and/or The resource identifier of the DL PRS (DL-PRS Resource ID).

As shown in FIG. 3 , the first MAC CE may include a DL PRS resource set identifier (DL-PRS Resource Set ID) field, which is used to indicate the DL PRS resource set identifier; optionally, this field includes DL-PRS resources The index of the set, which may be nr-DL-PRS-ResourceSetId as specified in 37.355 [23]. The first MAC CE may also include a DL PRS resource identifier (DL-PRS Resource ID) field for indicating the DL PRS resource set identifier; optionally, this field includes an index of the DL-PRS resource, and the index may be nr-DL-PRS-Resource-Id as specified in 37.355 [23].

Further, as shown in FIG. 3 , the first MAC CE may include an indication information (F) field, and the indication information may be the above-mentioned first indication information, which is used to indicate the type of the path loss reference signal. The length of the F field shown in FIG. 3 is 1 bit, and two different values of this 1 bit can be used to indicate that the path loss reference signal is SSB or DL PRS, respectively. If the length of the F field is 2 bits, it can further distinguish whether the SSB is the serving cell SSB or the neighboring cell SSB. For example, when the length of the F field is 2 bits, the value "00" or "01" indicates that the type of the path loss reference signal is DL PRS, the value "10" indicates that the type of the path loss reference signal is the serving cell SSB, and the value "11" ” indicates that the type of path loss reference signal is neighbor cell SSB. Of course, the foregoing value and indication content of the F field are only an example, and the embodiment of the present application does not limit the indication manner of the F field. The R field in FIG. 3 is a reserved field. In this embodiment of the present application, any N reserved fields (N is a positive integer) may be used as the F field to indicate the type of the path loss reference signal.

In some embodiments, as shown in FIG. 3 , the Serving Cell ID (Serving Cell ID) field and the BWP ID field may be set in the first byte in the first MAC CE; the first indication information (F) field and the SRS The resource set identification (SRS Resource Set ID) field can be set in the second byte in the first MAC CE; the path loss reference signal identification (Pathloss Reference RS ID) field can be set in the third word in the first MAC CE Festival. Subsequent fields in the first MAC CE may be optional fields.

Example 2:

This embodiment extends the existing SRS Pathloss Reference RS Update MAC CE, and adds a path loss reference signal indicating the SRS used for positioning in the MAC CE.

FIG. 4 is a schematic structural diagram of the existing SRS Pathloss Reference RS Update MAC CE. The existing SRS Pathloss Reference RS Update MAC CE is used to update the path loss reference signal of the common SRS, where the common SRS may refer to other SRSs except the SRS used for positioning.

As shown in Figure 4, the existing SRS Pathloss Reference RS Update MAC CE has a length of 3 bytes, including the Serving Cell ID field, the BWP ID (BWP ID) field, and the SRS Resource Set ID (SRS Resource Set). ID) field and Pathloss Reference RS ID field. Among them, the length of the Pathloss Reference RS ID field is 6 bits. In this embodiment, the existing SRS Pathloss Reference RS Update MAC CE is extended to the first MAC CE for updating the path loss reference signal of the positioning SRS. Since the path loss reference signal of the positioning SRS is different from the path loss reference signal of the ordinary SRS, In order to be able to indicate pathloss reference signals of different types of positioning SRSs, in this embodiment, the length of the Pathloss Reference RS ID field in the MAC CE shown in FIG. 4 may be extended to 8 bits. For example, the Pathloss Reference RS ID field in the existing SRS Pathloss Reference RS Update MAC CE is extended to the entire byte where it is located.

Optionally, the first MAC CE indicates the path loss reference signal to be used by the SRS resource set; and/or, the path loss reference signal to be used by the SRS resource.

Same as Embodiment 1, the path loss reference signal indicated by the first MAC CE in this embodiment may include the following:

serving cell SSB;

Neighboring cell SSB;

DL PRS;

CSI-RS.

When the path loss reference signal configured by the first MAC CE is the serving cell SSB, optionally, the first MAC CE may also indicate cell information corresponding to the serving cell, such as PCI.

When the path loss reference signal configured by the first MAC CE is the adjacent cell SSB, the first MAC CE also indicates the cell information corresponding to the adjacent cell, such as PCI.

When the path loss reference signal configured by the first MAC CE is a DL PRS, the first MAC CE may also indicate the configuration information to which the DL PRS belongs, such as a resource set identifier (DL-PRS Resource Set ID) and/or The resource identifier of the DL PRS (DL-PRS Resource ID).

Correspondingly, this embodiment can extend the resource set identifier (DL-PRS Resource Set ID) field of DL PRS, the resource identifier (DL-PRS Resource ID) field and PCI field of DL PRS, and the content of each field can be the same as that of Embodiment 1. The contents of the corresponding fields are the same and will not be repeated here.

Optionally, in this embodiment, any N (N is a positive integer) reserved (R) field in the MAC CE may be used as the first indication information (F) field to indicate the type of the path loss reference signal. Optionally, the indication information is the above-mentioned first indication information. The specific indication manner of the indication information field may be the same as the content of Embodiment 1, which will not be repeated here.

In this embodiment, the serving cell identification (Serving Cell ID) field and the BWP identification field may be set in the first byte in the first MAC CE; the first indication information (F) field and the SRS resource set identification (SRS Resource The Set ID) field can be set in the second byte in the first MAC CE; the path loss reference signal identification (Pathloss Reference RS ID) field can be set in the third byte in the first MAC CE. Subsequent fields in the first MAC CE may be optional fields.

Example 3:

This embodiment extends the existing SP Positioning SRS Activation/Deactivation MAC CE, so that the MAC CE can also update the function of activating/deactivating the SRS used for positioning and indicating the spatial relationship corresponding to the SRS resources Pathloss reference signal for SRS.

5 is a schematic structural diagram of the first MAC CE of Embodiment 3 of the present application. Optionally, as shown in FIG. 5 , the path loss reference signal information (Pathloss reference RS info) is an extension of this embodiment, and can be used to indicate the path loss reference signal. The part before the Pathloss reference RS info is the content contained in the existing SP Positioning SRS Activation/Deactivation MAC CE, which is used to activate/deactivate the SRS used for positioning and indicate the spatial relationship corresponding to the SRS resource. Specifically include:

Activation/Deactivation (A/D) field: This field is used to indicate activation or deactivation of the indicated SP Positioning SRS resource set. The length of this field is 1 bit. When the value is 1, it means activation, and when the value is 0, it means deactivation.

The Cell ID (Positioning SRS Resource Set'Cell ID) field of the resource set of the Positioning SRS: This field is used to indicate the serving cell, which contains the activated/deactivated Positioning SRS resource set. If the C field is set to 0, this field is also used to indicate the identity of the serving cell that contains all resources indicated by the Spatial Relation for Resource IDi field. The length of this field is 5 bits.

Positioning SRS Resource Set's BWP ID field: This field indicates the uplink (UL) bandwidth part (BWP) as the DCI bandwidth part indicator field (DCI bandwidth part) specified in TS38.212 [9] indicator field) code points. Among them, the active/inactive SP Positioning SRS resource set is included. If the C field is set to 0, this field is also used to indicate the identity of the BWP containing all resources indicated by the Spatial Relation for Resource IDi field. The length of this field is 2 bits.

C field: This field is used to indicate whether the byte contains the Resource Serving Cell ID field, and whether the Resource BWP ID field in the Spatial Relation for Resource IDi field exists. When the value of the A/D field is 1, if the value of the C field is 1, the byte contains the Resource Serving Cell ID field and the Resource BWP ID field in the Spatial Relation for Resource IDi field exists; if the value of the C field is If it is 0, it does not exist. When the value of the A/D field is 0, the value of the C field is always 1, indicating that the above fields are not included.

SUL field: This field is used to indicate whether the MAC CE supports a normal uplink (NUL, normal uplink) carrier configuration or a supplementary uplink (SUL, supplementary uplink) carrier configuration. When the value of this field is 1, it indicates that the SUL carrier configuration is supported; when the value of this field is 0, it indicates that the NUL carrier configuration is supported.

Positoining SRS Resource Set ID (Positoining SRS Resource Set ID) field: This field indicates the active/inactive SP Positioning SRS Resource Set, which can be the SRS-PosResourceSetId specified in TS 38.331[5]. The length of this field is 4 bits.

Spatial Relation for Resource Idi field: This field exists only when the MAC CE is used for activation (for example, A/field D has a value of 1). M is the number of Positioning SRS resources in the SP Positioning SRS resource set indicated by the Positioning SRS Resource Set ID field. Resource Idi has 4 types of spatial relationships, which can be indicated by the F field (F0 and F1).

S field: This field is used to indicate whether the Spatial Relation for Resource Idi field exists. If the value of the S field is 1, the Spatial Relation for Resource Idi field exists, otherwise, the Spatial Relation for Resource Idi field does not exist.

Reserved (R) field R: The value of this field is 0.

The above are the fields in the existing SP Positioning SRS Activation/Deactivation MAC CE. In this embodiment, the existing SP Positioning SRS Activation/Deactivation MAC CE is extended to the first MAC CE, which includes the above-mentioned fields. Optionally, the first MAC CE includes at least one of the following:

The second information indication field is used to indicate the second indication information for activating or deactivating the resource set of the SRS used for positioning; such as the above A/D field.

The spatial relationship field is used to indicate the spatial relationship information corresponding to the resources in the resource set of the SRS used for positioning; such as the above-mentioned Positoining SRS Resource Set ID field.

The third indication information field is used to indicate whether the spatial relationship information is included; such as the above S field.

The fourth indication information field is used to indicate whether there is a byte containing the resource serving cell identifier and the resource BWP identifier in the spatial relationship information; such as the above C field.

The fourth indication information field is used to indicate whether the first MAC CE is applied to the normal uplink NUL carrier configuration or the supplementary uplink SUL carrier configuration; such as the above SUL field.

This embodiment extends the above-mentioned SP Positioning SRS Activation/Deactivation MAC CE, and can add a path loss reference signal information (Pathloss reference RS info) part after the original field to generate the first MAC CE. The first MAC CE is used to indicate the path loss reference signal of the positioning SRS, and the path loss reference signal may include the following:

serving cell SSB;

Neighboring cell SSB;

DL PRS;

CSI-RS;

Correspondingly, the first MAC CE indicates at least one of the following:

The identity of the serving cell SSB;

The identity of the DL PRS;

The identifier of the CSI-RS.

6 is a schematic structural diagram of a path loss reference signal information (Pathloss reference RS info) part in the first MAC CE of Embodiment 3 of the present application. As shown in Figure 6, this section includes:

Path loss reference signal identification (Pathloss Reference RS ID) field, DL PRS resource set identification (DL-PRS Resource Set ID) field, DL PRS resource identification (DL-PRS Resource ID) field and PCI field. Among them, the Pathloss Reference RS ID field is a field that must be included and is used to indicate the identifier of the path loss reference signal. The last three fields are optional. The contents of the foregoing fields are the same as those of the corresponding fields in Embodiment 1, and are not repeated here.

In addition, in the first MAC CE shown in FIG. 5 and FIG. 6, the fields in the path loss reference signal information (Pathloss reference RS info) part, that is, the path loss reference signal identification (Pathloss Reference RS ID) field, the DL PRS The resource set identification (DL-PRS Resource Set ID) field, the DL PRS resource identification (DL-PRS Resource ID) field and the PCI field are all set after the original field of the SP Positioning SRS Activation/Deactivation MAC CE. In other embodiments of the present application, some fields in the aforementioned path loss reference signal information (Pathloss reference RS info) part may also be set before the original fields of the SP Positioning SRS Activation/Deactivation MAC CE. The order of each field in a MAC CE is not limited.

Optionally, in this embodiment, any N (N is a positive integer) reserved fields in the MAC CE may be used as the indication information (F) field to indicate the type of the path loss reference signal. Optionally, the indication information is the above-mentioned first indication information. The specific indication manner of the indication information field may be the same as the content of Embodiment 1, which will not be repeated here.

From the above, it can be seen that the path loss reference information configuration method proposed in the embodiment of the present application can realize the configuration of the path loss reference signal of the SRS used for positioning by using the MAC CE, save the RRC signaling overhead, and reduce the delay.

An embodiment of the present application further proposes another method for configuring path loss reference information. FIG. 7 is a flowchart of an implementation of a method 700 for configuring path loss reference information according to an embodiment of the present application, including:

S710: Send a first MAC CE; wherein, the first MAC CE is used to configure a path loss reference signal of the SRS used for positioning for the terminal device.

The method can be applied to a network device. The network device sends the first MAC CE to the terminal device, which can be used to update the SRS path loss reference signal used for positioning for the terminal device, and can also be used to initially configure the terminal device for positioning. Pathloss reference signal for SRS.

Optionally, the first MAC CE is used to configure the path loss reference signal of the SRS used for positioning for the terminal device, specifically:

The first MAC CE is used to configure the path loss reference signal used by the SRS resource set of the SRS used for positioning for the terminal device; or,

The first MAC CE is used to configure the path loss reference signal used by the SRS resource of the SRS used for positioning for the terminal device.

Optionally, the path loss reference signal includes at least one of the following:

serving cell synchronization signal block SSB;

Neighboring cell SSB;

Downlink DL positioning reference signal PRS;

channel state information CSI-reference signal RS;

Correspondingly, the first MAC CE indicates at least one of the following:

The identity of the serving cell SSB;

The identity of the DL PRS;

The identifier of the CSI-RS.

Optionally, when the first MAC CE indicates the identity of the serving cell SSB, the first MAC CE also indicates cell information corresponding to the serving cell SSB.

Optionally, the cell information includes a physical cell identifier PCI.

Optionally, when the first MAC CE indicates the identifier of the DL PRS, the first MAC CE also indicates the configuration information to which the DL PRS belongs; wherein the configuration information to which the DL PRS belongs includes: the resource set identifier of the DL PRS and/or the configuration information to which the DL PRS belongs. or the resource identifier of the DL PRS.

Optionally, the first MAC CE indicates at least one of the following:

the identity of the serving cell;

The identifier of the BWP of the uplink UL bandwidth part;

The identifier of the SRS resource set.

Optionally, the first MAC CE includes at least one of the following:

The serving cell identification field is used to indicate the identification of the serving cell;

The BWP identification field is used to indicate the identification of the UL BWP;

a first indication information field, used to indicate the type of the path loss reference signal;

SRS resource set identification field, used to indicate the identification of the SRS resource set;

The path loss reference signal identifier field is used to indicate the identifier of the SSB of the serving cell, the identifier of the SSB of the neighboring cell, the identifier of the DL PRS or the identifier of the CSI-RS.

Optionally, the length of the path loss reference signal identification field is 8 bits.

Optionally, the first MAC CE also includes at least one of the following:

The DL PRS resource set identifier field is used to indicate the resource set identifier of the DL PRS;

The DL PRS resource identifier field is used to indicate the resource identifier of the DL PRS;

The PCI field is used to indicate cell information corresponding to the serving cell SSB or the neighboring cell SSB.

Optionally, the serving cell identification field and the BWP identification field are set to the first byte in the first MAC CE;

The first indication information field and the SRS resource set identification field are set to the second byte in the first MAC CE;

The path loss reference signal identification field is set in the third byte in the first MAC CE.

Optionally, the first MAC CE further includes:

A field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS for positioning, and indicates the spatial relationship corresponding to the SRS resources.

Optionally, in the first MAC CE, at least one of the path loss reference signal identification field, the DL PRS resource set identification field, the DL PRS resource identification field, and the PCI field is set in the second MAC CE. After the position of the field in .

Optionally, the field in the second MAC CE includes at least one of the following:

The second indication information field is used to indicate the activation or deactivation of the resource set of the SRS used for positioning;

Spatial relationship field, used to indicate the spatial relationship information corresponding to the resources in the resource set of the SRS used for positioning;

a third indication information field, used to indicate whether the spatial relationship information is included;

The fourth indication information field is used to indicate whether there are bytes containing the resource serving cell identifier and the resource BWP identifier in the spatial relationship information;

The fifth indication information field is used to indicate whether the first MAC CE is applied to the normal uplink NUL carrier configuration or the supplementary uplink SUL carrier configuration.

An embodiment of the present application further proposes a terminal device. FIG. 8 is a schematic structural diagram of a terminal device 800 according to an embodiment of the present application, including:

The receiving module 810 is configured to receive a first MAC CE; wherein, the first MAC CE is used to configure a path loss reference signal of the SRS used for positioning for the terminal device.

serving cell synchronization signal block SSB;

Neighboring cell SSB;

Downlink DL positioning reference signal PRS;

channel state information CSI-reference signal RS;

Correspondingly, the first MAC CE indicates at least one of the following:

The identity of the serving cell SSB;

The identity of the DL PRS;

The identifier of the CSI-RS.

Optionally, the cell information includes a physical cell identifier PCI.

Optionally, the first MAC CE indicates at least one of the following:

the identity of the serving cell;

The identifier of the BWP of the uplink UL bandwidth part;

The identifier of the SRS resource set.

Optionally, the first MAC CE includes at least one of the following:

The path loss reference signal identification field is used to indicate the identification of the SSB of the serving cell, the identification of the SSB of the neighboring cell, the identification of the DL PRS or the identification of the CSI-RS.

Optionally, the first MAC CE also includes at least one of the following:

Optionally, the first MAC CE further includes:

A field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS used for positioning, and indicates the spatial relationship corresponding to the SRS resources.

It should be understood that the above and other operations and/or functions of the modules in the terminal device according to the embodiments of the present application are to implement the corresponding process of the terminal device in the method 200 in FIG. 2 , and are not repeated here for brevity.

An embodiment of the present application further proposes a network device. FIG. 9 is a schematic structural diagram of a network device 900 according to an embodiment of the present application, including:

The sending module 910 is configured to send a first MAC CE; wherein, the first MAC CE is used to configure a path loss reference signal of the SRS used for positioning for the terminal device.

serving cell synchronization signal block SSB;

Neighboring cell SSB;

Downlink DL positioning reference signal PRS;

channel state information CSI-reference signal RS;

Correspondingly, the first MAC CE indicates at least one of the following:

The identity of the serving cell SSB;

The identity of the DL PRS;

The identifier of the CSI-RS.

Optionally, the cell information includes a physical cell identifier PCI.

Optionally, when the first MAC CE indicates the identifier of the DL PRS, the first MAC CE also indicates the configuration information to which the DL PRS belongs; wherein the configuration information to which the DL PRS belongs includes: the resource set identifier of the DL PRS and/or or the resource identifier of the DL PRS.

Optionally, the first MAC CE indicates at least one of the following:

the identity of the serving cell;

The identifier of the BWP of the uplink UL bandwidth part;

The identifier of the SRS resource set.

Optionally, the first MAC CE includes at least one of the following:

Optionally, the first MAC CE also includes at least one of the following:

Optionally, the first MAC CE further includes:

It should be understood that the above and other operations and/or functions of the modules in the network device according to the embodiments of the present application are to implement the corresponding process of the network device in the method 700 in FIG. 7 , and are not repeated here for brevity.

FIG. 10 is a schematic structural diagram of a communication device 1000 according to an embodiment of the present application. The communication device 1000 shown in FIG. 10 includes a processor 1010, and the processor 1010 can call and run a computer program from a memory to implement the method in the embodiments of the present application.

Optionally, as shown in FIG. 10 , the communication device 1000 may further include a memory 1020 . The processor 1010 may call and run a computer program from the memory 1020 to implement the methods in the embodiments of the present application.

The memory 1020 may be a separate device independent of the processor 1010, or may be integrated in the processor 1010.

Optionally, as shown in FIG. 10 , the communication device 1000 may further include a transceiver 1030, and the processor 1010 may control the transceiver 1030 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.

Among them, the transceiver 1030 may include a transmitter and a receiver. The transceiver 1030 may further include antennas, and the number of the antennas may be one or more.

Optionally, the communication device 1000 may be a terminal device of an embodiment of the present application, and the communication device 1000 may implement the corresponding process implemented by the terminal device in the configuration method of each path loss reference information of the embodiment of the present application. For brevity, It is not repeated here.

Optionally, the communication device 1000 may be the network device in this embodiment of the present application, and the communication device 1000 may implement the corresponding process implemented by the network device in the method for configuring each path loss reference information in the embodiment of the present application. For brevity, It is not repeated here.

FIG. 11 is a schematic structural diagram of a chip 1100 according to an embodiment of the present application. The chip 1100 shown in FIG. 11 includes a processor 1110, and the processor 1110 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 11 , the chip 1100 may further include a memory 1120 . The processor 1110 may call and run a computer program from the memory 1120 to implement the methods in the embodiments of the present application.

The memory 1120 may be a separate device independent of the processor 1110, or may be integrated in the processor 1110.

Optionally, the chip 1100 may further include an input interface 1130 . The processor 1110 may control the input interface 1130 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.

Optionally, the chip 1100 may further include an output interface 1140 . The processor 1110 may control the output interface 1140 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

Optionally, the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which is not repeated here for brevity.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

The above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an off-the-shelf programmable gate array (field programmable gate array, FPGA), an application specific integrated circuit (ASIC) or Other programmable logic devices, transistor logic devices, discrete hardware components, etc. The general-purpose processor mentioned above may be a microprocessor or any conventional processor or the like.

The memory mentioned above may be either volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory may be random access memory (RAM).

It should be understood that the above memory is an example but not a limitative description, for example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions may be stored on or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted over a wire from a website site, computer, server or data center (eg coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) means to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a Solid State Disk (SSD)), and the like.

It should be understood that, in various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art who is familiar with the technical scope disclosed in the present application can easily think of changes or substitutions. Covered within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method for configuring path loss reference information, the method is applied to a terminal device, and the method includes:

receiving the first medium access control MAC control element CE;

Wherein, the first MAC CE is used to configure the path loss reference signal of the sounding reference signal SRS used for positioning for the terminal device.
The method according to claim 1, wherein, the first MAC CE is used to configure the path loss reference signal of the SRS used for positioning for the terminal device, specifically:

The first MAC CE is used to configure the path loss reference signal used by the SRS resource set of the SRS used for positioning for the terminal device; or,

The first MAC CE is used to configure the path loss reference signal used by the SRS resource of the SRS used for positioning for the terminal device.
The method of claim 1 or 2, wherein the path loss reference signal comprises at least one of the following:

serving cell synchronization signal block SSB;

Neighboring cell SSB;

Downlink DL positioning reference signal PRS;

channel state information CSI-reference signal RS;

Correspondingly, the first MAC CE indicates at least one of the following:

The identity of the serving cell SSB;

The identity of the SSB of the neighboring cell and the cell information corresponding to the SSB of the neighboring cell;

The identity of the DL PRS;

The identifier of the CSI-RS.
The method according to any one of claims 1 to 3, wherein, when the first MAC CE indicates the identity of the serving cell SSB, the first MAC CE also indicates cell information corresponding to the serving cell SSB.
The method of claim 3 or 4, wherein the cell information includes a physical cell identity PCI.
The method according to any one of claims 1 to 3, wherein, when the first MAC CE indicates an identifier of a DL PRS, the first MAC CE further indicates configuration information to which the DL PRS belongs; wherein the The configuration information to which the DL PRS belongs includes: the resource set identifier of the DL PRS and/or the resource identifier of the DL PRS.
The method of any one of claims 1 to 6, wherein the first MAC CE indicates at least one of the following:

the identity of the serving cell;

The identifier of the BWP of the uplink UL bandwidth part;

The identifier of the SRS resource set.
The method according to any one of claims 1 to 7, wherein the first MAC CE comprises at least one of the following:

The serving cell identification field is used to indicate the identification of the serving cell;

The BWP identification field is used to indicate the identification of the UL BWP;

a first indication information field, used to indicate the type of the path loss reference signal;

SRS resource set identification field, used to indicate the identification of the SRS resource set;

The path loss reference signal identifier field is used to indicate the identifier of the SSB of the serving cell, the identifier of the SSB of the neighboring cell, the identifier of the DL PRS or the identifier of the CSI-RS.
The method of claim 8, wherein the length of the path loss reference signal identification field is 8 bits.
The method according to claim 8 or 9, wherein the first MAC CE further comprises at least one of the following:

The DL PRS resource set identifier field is used to indicate the resource set identifier of the DL PRS;

The DL PRS resource identifier field is used to indicate the resource identifier of the DL PRS;

The PCI field is used to indicate cell information corresponding to the serving cell SSB or the neighboring cell SSB.
The method according to any one of claims 8 to 10, wherein the serving cell identification field and the BWP identification field are set in the first byte in the first MAC CE;

The first indication information field and the SRS resource set identification field are set in the second byte in the first MAC CE;

The path loss reference signal identification field is set in the third byte in the first MAC CE.
The method according to any one of claims 8 to 11, wherein the first MAC CE further comprises:

A field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS used for positioning, and indicates the spatial relationship corresponding to the SRS resources.
The method of claim 12, wherein, in the first MAC CE, the path loss reference signal identification field, the DL PRS resource set identification field, the DL PRS resource identification field, and the PCI field At least one of is set after the position of the field in the second MAC CE.
The method of claim 12 or 13, wherein the field in the second MAC CE includes at least one of the following:

The second indication information field is used to indicate the activation or deactivation of the resource set of the SRS used for positioning;

Spatial relationship field, used to indicate the spatial relationship information corresponding to the resources in the resource set of the SRS used for positioning;

a third indication information field, used to indicate whether the spatial relationship information is included;

The fourth indication information field is used to indicate whether there are bytes containing the resource serving cell identifier and the resource BWP identifier in the spatial relationship information;

The fifth indication information field is used to indicate whether the first MAC CE is applied to the normal uplink NUL carrier configuration or the supplementary uplink SUL carrier configuration.
A method for configuring path loss reference information, the method is applied to a network device, and the method includes:

sending the first medium access control MAC control element CE;

Wherein, the first MAC CE is used to configure the path loss reference signal of the SRS used for positioning for the terminal device.
The method according to claim 15, wherein the first MAC CE is used to configure a path loss reference signal of the SRS used for positioning for the terminal device, specifically:

The first MAC CE is used to configure the path loss reference signal used by the SRS resource set of the SRS used for positioning for the terminal device; or,

The first MAC CE is used to configure the path loss reference signal used by the SRS resource of the SRS used for positioning for the terminal device.
The method of claim 15 or 16, wherein the path loss reference signal comprises at least one of the following:

serving cell synchronization signal block SSB;

Neighboring cell SSB;

Downlink DL positioning reference signal PRS;

channel state information CSI-reference signal RS;

Correspondingly, the first MAC CE indicates at least one of the following:

The identity of the serving cell SSB;

The identity of the SSB of the neighboring cell and the cell information corresponding to the SSB of the neighboring cell;

The identity of the DL PRS;

The identifier of the CSI-RS.
The method according to any one of claims 15 to 17, wherein, when the first MAC CE indicates the identity of the serving cell SSB, the first MAC CE also indicates cell information corresponding to the serving cell SSB.
The method of claim 17 or 18, wherein the cell information includes a physical cell identity PCI.
The method according to any one of claims 15 to 17, wherein, when the first MAC CE indicates an identifier of a DL PRS, the first MAC CE further indicates configuration information to which the DL PRS belongs; wherein the The configuration information to which the DL PRS belongs includes: the resource set identifier of the DL PRS and/or the resource identifier of the DL PRS.
The method of any one of claims 15 to 20, wherein the first MAC CE indicates at least one of the following:

the identity of the serving cell;

The identifier of the BWP of the uplink UL bandwidth part;

The identifier of the SRS resource set.
The method according to any one of claims 15 to 21, wherein the first MAC CE comprises at least one of the following:

The serving cell identification field is used to indicate the identification of the serving cell;

The BWP identification field is used to indicate the identification of the UL BWP;

a first indication information field, used to indicate the type of the path loss reference signal;

SRS resource set identification field, used to indicate the identification of the SRS resource set;

The path loss reference signal identifier field is used to indicate the identifier of the SSB of the serving cell, the identifier of the SSB of the neighboring cell, the identifier of the DL PRS or the identifier of the CSI-RS.
The method of claim 22, wherein the path loss reference signal identification field is 8 bits in length.
The method of claim 22 or 23, wherein the first MAC CE further comprises at least one of the following:

The DL PRS resource set identifier field is used to indicate the resource set identifier of the DL PRS;

The DL PRS resource identifier field is used to indicate the resource identifier of the DL PRS;

The PCI field is used to indicate cell information corresponding to the serving cell SSB or the neighboring cell SSB.
The method according to any one of claims 22 to 24, wherein the serving cell identification field and the BWP identification field are set in the first byte in the first MAC CE;

The first indication information field and the SRS resource set identification field are set in the second byte in the first MAC CE;

The path loss reference signal identification field is set in the third byte in the first MAC CE.
The method according to any one of claims 22 to 25, wherein the first MAC CE further comprises:

A field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS used for positioning, and indicates the spatial relationship corresponding to the SRS resources.
The method of claim 26, wherein, in the first MAC CE, the path loss reference signal identification field, the DL PRS resource set identification field, the DL PRS resource identification field, and the PCI field At least one of is set after the position of the field in the second MAC CE.
The method of claim 26 or 27, wherein the field in the second MAC CE includes at least one of the following:

The second indication information field is used to indicate the activation or deactivation of the resource set of the SRS used for positioning;

Spatial relationship field, used to indicate the spatial relationship information corresponding to the resources in the resource set of the SRS used for positioning;

a third indication information field, used to indicate whether the spatial relationship information is included;

The fourth indication information field is used to indicate whether there are bytes containing the resource serving cell identifier and the resource BWP identifier in the spatial relationship information;

The fifth indication information field is used to indicate whether the first MAC CE is applied to the normal uplink NUL carrier configuration or the supplementary uplink SUL carrier configuration.
A terminal device including:

a receiving module, configured to receive the first medium access control MAC control unit CE;

Wherein, the first MAC CE is used to configure the path loss reference signal of the sounding reference signal SRS used for positioning for the terminal device.
The terminal device according to claim 29, wherein the first MAC CE is used to configure a path loss reference signal of the SRS used for positioning for the terminal device, specifically:

The first MAC CE is used to configure the path loss reference signal used by the SRS resource set of the SRS used for positioning for the terminal device; or,

The first MAC CE is used to configure the path loss reference signal used by the SRS resource of the SRS used for positioning for the terminal device.
The terminal device according to claim 29 or 30, wherein the path loss reference signal comprises at least one of the following:

serving cell synchronization signal block SSB;

Neighboring cell SSB;

Downlink DL positioning reference signal PRS;

channel state information CSI-reference signal RS;

Correspondingly, the first MAC CE indicates at least one of the following:

The identity of the serving cell SSB;

The identity of the SSB of the neighboring cell and the cell information corresponding to the SSB of the neighboring cell;

The identity of the DL PRS;

The identifier of the CSI-RS.
The terminal device according to any one of claims 29 to 31, wherein, when the first MAC CE indicates the identity of the serving cell SSB, the first MAC CE also indicates cell information corresponding to the serving cell SSB.
The terminal device according to claim 31 or 32, wherein the cell information includes a physical cell identity PCI.
The terminal device according to any one of claims 29 to 31, wherein, when the first MAC CE indicates an identifier of a DL PRS, the first MAC CE further indicates configuration information to which the DL PRS belongs; wherein, The configuration information to which the DL PRS belongs includes: a resource set identifier of the DL PRS and/or a resource identifier of the DL PRS.
The terminal device according to any one of claims 29 to 34, wherein the first MAC CE indicates at least one of the following:

the identity of the serving cell;

The identifier of the BWP of the uplink UL bandwidth part;

The identifier of the SRS resource set.
The terminal device according to any one of claims 29 to 35, wherein the first MAC CE includes at least one of the following:

The serving cell identification field is used to indicate the identification of the serving cell;

The BWP identification field is used to indicate the identification of the UL BWP;

a first indication information field, used to indicate the type of the path loss reference signal;

SRS resource set identification field, used to indicate the identification of the SRS resource set;

The path loss reference signal identifier field is used to indicate the identifier of the SSB of the serving cell, the identifier of the SSB of the neighboring cell, the identifier of the DL PRS or the identifier of the CSI-RS.
The terminal device of claim 36, wherein the length of the path loss reference signal identification field is 8 bits.
The terminal device according to claim 36 or 37, wherein the first MAC CE further comprises at least one of the following:

The DL PRS resource set identifier field is used to indicate the resource set identifier of the DL PRS;

The DL PRS resource identifier field is used to indicate the resource identifier of the DL PRS;

The PCI field is used to indicate cell information corresponding to the serving cell SSB or the neighboring cell SSB.
The terminal device according to any one of claims 36 to 38, wherein the serving cell identification field and the BWP identification field are set in the first byte in the first MAC CE;

The first indication information field and the SRS resource set identification field are set in the second byte in the first MAC CE;

The path loss reference signal identification field is set in the third byte in the first MAC CE.
The terminal device according to any one of claims 36 to 39, wherein the first MAC CE further comprises:

A field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS used for positioning, and indicates the spatial relationship corresponding to the SRS resources.
The terminal device according to claim 40, wherein, in the first MAC CE, the path loss reference signal identification field, the DL PRS resource set identification field, the DL PRS resource identification field, and the PCI At least one of the fields is arranged after the position of the field in the second MAC CE.
The terminal device according to claim 40 or 41, wherein the field in the second MAC CE includes at least one of the following:

The second indication information field is used to indicate the activation or deactivation of the resource set of the SRS used for positioning;

Spatial relationship field, used to indicate the spatial relationship information corresponding to the resources in the resource set of the SRS used for positioning;

a third indication information field, used to indicate whether the spatial relationship information is included;

The fourth indication information field is used to indicate whether there are bytes containing the resource serving cell identifier and the resource BWP identifier in the spatial relationship information;

The fifth indication information field is used to indicate whether the first MAC CE is applied to the normal uplink NUL carrier configuration or the supplementary uplink SUL carrier configuration.
A network device comprising:

a sending module, configured to send the first medium access control MAC control element CE;

Wherein, the first MAC CE is used to configure the path loss reference signal of the SRS used for positioning for the terminal device.
The network device according to claim 43, wherein the first MAC CE is used to configure a path loss reference signal of the SRS used for positioning for the terminal device, specifically:

The first MAC CE is used to configure the path loss reference signal used by the SRS resource set of the SRS used for positioning for the terminal device; or,

The first MAC CE is used to configure the path loss reference signal used by the SRS resource of the SRS used for positioning for the terminal device.
The network device of claim 43 or 44, wherein the path loss reference signal comprises at least one of the following:

serving cell synchronization signal block SSB;

Neighboring cell SSB;

Downlink DL positioning reference signal PRS;

channel state information CSI-reference signal RS;

Correspondingly, the first MAC CE indicates at least one of the following:

The identity of the serving cell SSB;

The identity of the SSB of the neighboring cell and the cell information corresponding to the SSB of the neighboring cell;

The identity of the DL PRS;

The identifier of the CSI-RS.
The network device according to any one of claims 43 to 45, wherein, when the first MAC CE indicates the identity of the serving cell SSB, the first MAC CE also indicates cell information corresponding to the serving cell SSB.
The network device of claim 45 or 46, wherein the cell information comprises a physical cell identity PCI.
The network device according to any one of claims 43 to 45, wherein, when the first MAC CE indicates an identifier of a DL PRS, the first MAC CE further indicates configuration information to which the DL PRS belongs; wherein, The configuration information to which the DL PRS belongs includes: a resource set identifier of the DL PRS and/or a resource identifier of the DL PRS.
The network device of any one of claims 43 to 48, wherein the first MAC CE indicates at least one of the following:

the identity of the serving cell;

The identifier of the BWP of the uplink UL bandwidth part;

The identifier of the SRS resource set.
The network device according to any one of claims 43 to 49, wherein the first MAC CE includes at least one of the following:

The serving cell identification field is used to indicate the identification of the serving cell;

The BWP identification field is used to indicate the identification of the UL BWP;

a first indication information field, used to indicate the type of the path loss reference signal;

SRS resource set identification field, used to indicate the identification of the SRS resource set;

The path loss reference signal identifier field is used to indicate the identifier of the SSB of the serving cell, the identifier of the SSB of the neighboring cell, the identifier of the DL PRS or the identifier of the CSI-RS.
The network device of claim 50, wherein the path loss reference signal identification field is 8 bits in length.
The network device according to claim 50 or 51, wherein the first MAC CE further comprises at least one of the following:

The DL PRS resource set identifier field is used to indicate the resource set identifier of the DL PRS;

The DL PRS resource identifier field is used to indicate the resource identifier of the DL PRS;

The PCI field is used to indicate cell information corresponding to the serving cell SSB or the neighboring cell SSB.
The network device according to any one of claims 50 to 52, wherein the serving cell identification field and the BWP identification field are set in the first byte in the first MAC CE;

The first indication information field and the SRS resource set identification field are set in the second byte in the first MAC CE;

The path loss reference signal identification field is set in the third byte in the first MAC CE.
The network device according to any one of claims 50 to 53, wherein the first MAC CE further comprises:

A field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS used for positioning, and indicates the spatial relationship corresponding to the SRS resources.
The network device of claim 54, wherein, in the first MAC CE, the path loss reference signal identification field, the DL PRS resource set identification field, the DL PRS resource identification field, and the PCI At least one of the fields is arranged after the position of the field in the second MAC CE.
The network device of claim 54 or 55, wherein the field in the second MAC CE includes at least one of the following:

The second indication information field is used to indicate the activation or deactivation of the resource set of the SRS used for positioning;

Spatial relationship field, used to indicate the spatial relationship information corresponding to the resources in the resource set of the SRS used for positioning;

a third indication information field, used to indicate whether the spatial relationship information is included;

The fourth indication information field is used to indicate whether there are bytes containing the resource serving cell identifier and the resource BWP identifier in the spatial relationship information;

The fifth indication information field is used to indicate whether the first MAC CE is applied to the normal uplink NUL carrier configuration or the supplementary uplink SUL carrier configuration.
A terminal device, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute the computer program according to any one of claims 1 to 14. method described.
A communication device, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute the computer program according to any one of claims 15 to 28. method described.
A chip, comprising: a processor for invoking and running a computer program from a memory, so that a device on which the chip is installed executes the method according to any one of claims 1 to 14.
A chip, comprising: a processor for invoking and running a computer program from a memory, so that a device on which the chip is installed executes the method as claimed in any one of claims 15 to 28.
A computer-readable storage medium storing a computer program that causes a computer to perform the method of any one of claims 1 to 14.
A computer-readable storage medium storing a computer program that causes a computer to perform the method of any one of claims 15 to 28.
A computer program product comprising computer program instructions that cause a computer to perform the method of any one of claims 1 to 14.
A computer program product comprising computer program instructions that cause a computer to perform the method of any of claims 15 to 28.
A computer program that causes a computer to perform the method of any one of claims 1 to 14.
A computer program that causes a computer to perform the method of any one of claims 15 to 28.