Configuration method of path loss reference signal, terminal device and network device

Abstract

The embodiments of the present application relate to a configuration method of a path loss reference signal, a terminal device, and a network device, wherein the configuration method of the path loss reference signal includes receiving a first media access control (MAC) control element (CE); wherein the first MAC CE is used to configure a path loss reference signal of a sounding reference signal (SRS) for positioning for the terminal device. The embodiments of the present application can use the MAC CE to configure a path loss reference signal of an SRS for positioning, thereby saving RRC signaling overhead and reducing latency.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a configuration method for a path loss reference signal, a terminal device, and a network device. Background Art

[0002] Sounding Reference Signal (SRS) is one of the main reference signals used for positioning. Based on the SRS sent by the UE, the network can measure the arrival time, signal strength, arrival angle, etc. of the SRS to determine the location information of the UE. Currently, the path loss reference signal (pathloss reference RS) of the SRS for positioning (or positioning SRS) is configured by the Radio Resource Control (RRC); if the network needs to update the path loss reference signal of the SRS for positioning, it needs to notify the UE through the RRC reconfiguration message, which increases the RRC signaling overhead and has a relatively large delay. Summary of the invention

[0003] An embodiment of the present application provides a method for configuring a path loss reference signal, which is applied to a terminal device and includes:

[0004] receiving a first media access control (MAC) control element (CE);

[0005] The first MAC CE is used to configure a path loss reference signal of the SRS for positioning for the terminal device.

[0006] The embodiment of the present application also provides another method for configuring a path loss reference signal, which is applied to a network device and includes:

[0007] Send a first MAC CE; wherein the first MAC CE is used to configure a path loss reference signal of an SRS for positioning for the terminal device.

[0008] The present application also provides a terminal device, including:

[0009] The receiving module is used to receive a first MAC CE; wherein the first MAC CE is used to configure a path loss reference signal of an SRS for positioning for a terminal device.

[0010] The embodiment of the present application also provides a network device, including:

[0011] A sending module is used to send a first MAC CE; wherein the first MAC CE is used to configure a path loss reference signal of an SRS for positioning for a terminal device.

[0012] An embodiment of the present application also provides a terminal device, including: 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 a method such as any one of the methods for configuring a path loss reference signal.

[0013] An embodiment of the present application also provides a network device, including: 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 any method such as any one of the methods for configuring a path loss reference signal.

[0014] An embodiment of the present application also provides a chip, including: a processor, used to call and run a computer program from a memory, so that a device equipped with the chip executes any one of the methods for configuring a path loss reference signal applied to a terminal device.

[0015] An embodiment of the present application also provides a chip, including: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes any of the methods for configuring a path loss reference signal applied to a network device.

[0016] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program, wherein the computer program enables a computer to execute any of the methods for configuring a path loss reference signal applied to a terminal device.

[0017] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program, wherein the computer program enables a computer to execute any of the methods for configuring a path loss reference signal applied to a network device.

[0018] An embodiment of the present application also provides a computer program product, including computer program instructions, which enable a computer to execute any of the methods for configuring a path loss reference signal applied to a terminal device.

[0019] An embodiment of the present application also provides a computer program product, including computer program instructions, which enable a computer to execute any of the methods for configuring a path loss reference signal applied to a network device.

[0020] An embodiment of the present application also provides a computer program, which enables a computer to execute any one of the methods for configuring a path loss reference signal applied to a terminal device.

[0021] An embodiment of the present application also provides a computer program, which enables a computer to execute any one of the methods for configuring a path loss reference signal applied to a network device.

[0022] The embodiment of the present application utilizes MAC CE to configure the path loss reference signal of the SRS used for positioning, thereby updating the path loss reference signal of the SRS used for positioning, which can save RRC signaling overhead and reduce latency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of an application scenario of an embodiment of the present application.

[0024] Figure 2 It is a flow chart of an implementation of a method 200 for configuring a path loss reference signal according to an embodiment of the present application.

[0025] Figure 3 This is a structural diagram of the first MAC CE of Example 1 of the present application.

[0026] Figure 4 It is a structural diagram of the existing SRS Pathloss Reference RS Update MAC CE.

[0027] Figure 5 This is a structural diagram of the first MAC CE of Example 3 of the present application.

[0028] Figure 6 It is a structural diagram of the path loss reference signal information (Pathlossreference RS info) part in the first MAC CE of Example 3 of the present application.

[0029] Figure 7 It is a flow chart of an implementation of a method 700 for configuring a path loss reference signal according to an embodiment of the present application.

[0030] Figure 8 It is a structural diagram of a terminal device 800 according to an embodiment of the present application.

[0031] Fig. 9 It is a structural diagram of a network device 900 according to an embodiment of the present application.

[0032] Fig.10 is a schematic structural diagram of a communication device 1000 according to an embodiment of the present application.

[0033] Fig.11 is a schematic structural diagram of a chip 1100 according to an embodiment of the present application. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0035] It should be noted that the terms "first", "second", etc. 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. The objects described by the "first" and "second" described at the same time may be the same or different.

[0036] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-based access to 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.

[0037] 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 communications, but will 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 communication systems.

[0038] In one embodiment, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, and a standalone (SA) networking scenario.

[0039] The embodiments of the present application do not limit the spectrum to which they are applied. For example, the embodiments of the present application can be applied to licensed spectrum or unlicensed spectrum.

[0040] The embodiments of the present application describe various embodiments in combination with network devices and terminal devices, wherein: the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user 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 may be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, and a next-generation communication system, for example, a terminal device in an NR network or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0041] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, 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 clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0042] The network device can be a device for communicating with a mobile device. The network device can be an access point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device in an NR network (thenext Generation Node B, gNB) or a network device in a future evolved PLMN network, etc.

[0043] In an 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 (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell may be a cell corresponding to a network device (e.g., a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: a metro cell, a micro cell, a picocell, a femtocell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0044] Figure 1One network device 110 and two terminal devices 120 are exemplarily shown. In one embodiment, the wireless communication system 100 may include multiple network devices 110, and each network device 110 may include other number of terminal devices 120 within its coverage area, which is not limited in the embodiment of the present application. The embodiment of the present application may be applied to one terminal device 120 and one network device 110, or to one terminal device 120 and another terminal device 120.

[0045] In one embodiment, the wireless communication system 100 may also include other network entities such as a mobility management entity (MME), an access and mobility management function (AMF), etc., which is not limited in the embodiment of the present application.

[0046] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0047] In the prior art, the path loss reference signal of the SRS used for positioning is configured using RRC, as follows:

[0048]

[0049] 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. This method increases the RRC signaling overhead and the delay is also relatively large. At present, a method of updating the path loss reference signal of the ordinary SRS based on the Medium Access Control (MAC) control element (CE) is introduced, wherein the aforementioned ordinary SRS may refer to other SRSs different from the SRS used for positioning. The MAC CE is the SRS Pathloss Reference RS Update MAC CE. Since the path loss reference signal of the ordinary 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 for configuring the path loss reference signal of the SRS used for positioning. Alternatively, the embodiment of the present application extends the existing SRS Pathloss Reference RS Update MAC CE, or extends the existing MAC CE for other purposes, to configure the path loss reference signal of the SRS used for positioning. The aforementioned configuration may refer to the network device initially configuring the path loss reference signal 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 aforementioned methods will be described in detail in conjunction with the accompanying drawings.

[0050] The present application embodiment provides a method for configuring a path loss reference signal. Figure 2 is a flowchart of a method 200 for configuring a path loss reference signal according to an embodiment of the present application. The method can optionally be applied to Figure 1 The system shown is applied, for example, to Figure 1 The terminal device in the system shown is not limited thereto. The method includes at least part of the following contents.

[0051] S210: Receive a first media access control (MAC) control element (CE).

[0052] The first MAC CE is used to configure a path loss reference signal of the SRS for positioning for the terminal device.

[0053] In one embodiment, the first MAC CE is used to update the path loss reference signal of the SRS used for positioning for the terminal device; alternatively, the first MAC CE may also be used to initially configure the path loss reference signal of the SRS used for positioning for the terminal device.

[0054] According to the received first MAC CE, the UE can obtain the path loss reference signal of the SRS configured by the network side for positioning.

[0055] In one embodiment, the 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 device; or, the first MAC CE is used to configure the path loss reference signal used by the SRS resource (SRS resource) of the SRS used for positioning for the terminal device. It is used to indicate the path loss reference signal (pathloss reference RS) to be used by the SRS resource set, or to indicate the path loss reference RS to be used by the SRS resource.

[0056] In some implementations, the path loss reference signal indicated by the first MAC CE includes at least one of the following:

[0057] Serving cell synchronization signal block (Synchronization Signal Block, SSB);

[0058] Neighboring cell SSB;

[0059] Downlink (DL) Positioning Reference Signal (PRS);

[0060] Channel State Information (CSI)-Reference Signal (RS);

[0061] Accordingly, the first MAC CE indicates at least one of the following:

[0062] The identifier of the serving cell SSB;

[0063] The identifier of the neighboring cell SSB and the cell information corresponding to the neighboring cell SSB;

[0064] The logo of DL PRS;

[0065] The identifier of CSI-RS.

[0066] Among them, the serving cell SSB, the neighboring cell SSB, and the DL PRS are the types of path loss reference signals of the existing SRS used for positioning. The embodiment of the present application can expand a new type of path loss reference signal of the SRS used for positioning, namely, CSI-RS.

[0067] When the path loss reference signal configured by the first MAC CE is 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; in one embodiment, the first MAC CE may also include other relevant information of the path loss reference signal.

[0068] For example, when the path loss reference signal configured by the first MAC CE includes a serving cell SSB, the first MAC CE indicates an identifier of the serving cell SSB, such as an index of the serving cell SSB. The indication may refer to the identifier of the serving cell SSB included in the first MACCE, or may refer to other information in the first MAC CE that can indirectly indicate the identifier of the serving cell SSB. In the following examples, the word "indication" has the same meaning as here. Furthermore, the first MAC CE may also indicate cell information corresponding to the serving cell SSB, such as a physical cell identifier (Physical Cell ID, PCI).

[0069] For another example, when the path loss reference signal configured by the first MAC CE includes a neighboring cell SSB, the first MAC CE indicates the identifier of the neighboring cell SSB and the cell information corresponding to the neighboring cell SSB. The identifier of the neighboring cell SSB may specifically be the index of the serving cell SSB, and the cell information corresponding to the neighboring cell SSB may specifically be the PCI.

[0070] For another example, when 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. Furthermore, the first MAC CE may also indicate configuration information to which the DL PRS belongs. In one embodiment, 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, such as an index of a resource set of the DL PRS and / or an index of a resource of the DL PRS.

[0071] For another example, when the path loss reference signal configured by the first MAC CE includes a CSI-RS, the first MAC CE indicates an identifier of the CSI-RS.

[0072] In order to configure the above-mentioned different types of path loss reference signals, in one embodiment, the embodiment of the present application sets the length of the identifier of the path loss reference signal in the first MAC CE to 8 bits.

[0073] Since the first MAC CE can indicate different types of path loss reference signals, in some implementations, the first MAC CE may include first indication information for indicating the type of the path loss reference signal updated this time.

[0074] 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, and the two different values ​​of the 1-bit first indication information respectively indicate that the type of the path loss reference signal is SSB or DL ​​PRS. Furthermore, the length of the first indication information may be 2 bits, and in the case of indicating that the type of the path loss reference signal is SSB, the serving cell SSB and the neighboring cell SSB are further distinguished.

[0075] In addition, the first MAC CE may also indicate which bandwidth part (BandWidth Part, BWP) of which serving cell the updated path loss reference signal is applied to, and indicate which SRS resource set the path loss reference signal is updated; accordingly, the first MAC CE may indicate at least one of the following to indicate the above information:

[0076] The identification of the serving cell;

[0077] An identifier of an uplink (UL) bandwidth part (BWP);

[0078] The identifier of the SRS resource set.

[0079] In some implementations, the first MAC CE may be a newly defined MAC CE for the SRS used for positioning, or an extension of the 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 indicate the spatial relationship corresponding to the SRS resources, such as SP Positioning SRS Activation / Deactivation MAC CE; the MAC CE may be referred to as the second MAC CE. In the above two implementations of extending the existing MAC CE, in addition to indicating the relevant information of the path loss reference signal, the first MAC CE generated after the extension also indicates the original information in the MAC CE before the extension, which will be described in detail in the subsequent Examples 2 and 3.

[0080] Embodiment 1:

[0081] Figure 3It is a 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 a path loss reference signal of the SRS used for positioning.

[0082] In one embodiment, the first MAC CE indicates a path loss reference signal to be used by the SRS resource set; and / or a path loss reference signal to be used by the SRS resource.

[0083] like Figure 3 As shown, the first MAC CE includes the following fields:

[0084] Serving Cell ID field: This field is used to indicate the identity of the serving cell, including the activated SRS resource set. The length of this field can be set to 5 bits.

[0085] BWP ID field: This field indicates the uplink (UL) bandwidth part (BWP) as the code point of the DCI bandwidth part indicator field specified in TS 38.212 [9]. It contains the activated SRS resource set. The length of this field can be set to 2 bits.

[0086] SRS Resource Set ID field: This field indicates the identifier of the SRS resource set, which may be SRS-PosResourceSetId specified in TS 38.331 [5]. The length of this field may be set to 4 bits.

[0087] Pathloss Reference RS ID field: This field indicates the path loss reference signal identifier, which may be srs-PathlossReferenceRS-pos-Id specified in TS 38.331 [5]. The length of this field may be set to 8 bits.

[0088] In this embodiment, the path loss reference signal indicated by the first MAC CE may include the following:

[0089] Serving cell SSB;

[0090] Neighboring cell SSB;

[0091] DL PRS;

[0092] CSI-RS.

[0093] Correspondingly, the Pathloss Reference RS ID field may specifically indicate the identifier of the serving cell SSB, the identifier of the neighboring cell SSB, the identifier of the DL PRS, and the identifier of the CSI-RS.

[0094] When the path loss reference signal indicated by the first MAC CE is the serving cell SSB, in one embodiment, the first MAC CE may also indicate the cell information corresponding to the serving cell, such as PCI.

[0095] When the path loss reference signal indicated by the first MAC CE is the SSB of a neighboring cell, the first MAC CE also indicates the cell information corresponding to the neighboring cell, such as the PCI.

[0096] like Figure 3 As shown, to indicate the above PCI, the first MAC CE may include a PCI field to indicate the cell information corresponding to the serving cell SSB or the neighboring cell SSB; in one embodiment, the field includes a physical cell identifier, which may be the PhysCellId specified in TS 38.331[5] and / or TS37.355

[23] . The length of this field may be set to 10 bits. In one embodiment, 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 a PCI field; if the PCI field is not included, the first MAC CE does not include Figure 3 The sixth byte (Oct6) and the seventh byte (Oct7) shown in FIG. 10. When the path loss reference signal indicated by the first MAC CE is the neighboring cell SSB, the first MAC CE includes a PCI field for indicating the PCI corresponding to the neighboring cell.

[0097] 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 DL PRS resource set identifier (DL-PRS Resource Set ID) and / or a DL PRS resource identifier (DL-PRS Resource ID).

[0098] like Figure 3As shown, the first MAC CE may include a DL-PRS Resource Set ID field for indicating the resource set ID of the DL PRS; in one embodiment, the field includes an index of the DL-PRS resource set, which may be the nr-DL-PRS-ResourceSetId specified in 37.355

[23] . The first MAC CE may also include a DL-PRS Resource ID field for indicating the resource ID of the DL PRS; in one embodiment, the field includes an index of the DL-PRS resource, which may be the nr-DL-PRS-Resource-Id specified in 37.355

[23] .

[0099] Furthermore, if Figure 3 As shown, 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. Figure 3 The length of the F field shown in is 1 bit, and the two different values ​​of this 1 bit can be used to indicate whether the path loss reference signal is SSB or DL ​​PRS. If the length of the F field is 2 bits, it can be further distinguished whether the SSB is a serving cell SSB or a 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 a serving cell SSB, and the value "11" indicates that the type of the path loss reference signal is a neighboring cell SSB. Of course, the aforementioned values ​​and indications of the F field are merely examples, and the embodiments of the present application do not limit the indication method of the F field. Figure 3 The R field in is a reserved field. The embodiment of the present application can use any N (N is a positive integer) reserved fields as the F field to indicate the type of the path loss reference signal.

[0100] In some embodiments, Figure 3 As shown, the Serving Cell ID field and the BWP ID field can be set in the first byte of the first MAC CE; the first indication information (F) field and the SRS Resource Set ID field can be set in the second byte of the first MAC CE; the Pathloss Reference RS ID field can be set in the third byte of the first MAC CE. Subsequent fields in the first MAC CE can be optional fields.

[0101] Embodiment 2:

[0102] 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 to the MAC CE.

[0103] Figure 4 The diagram is a structural diagram of an existing SRS Pathloss Reference RS Update MAC CE. The existing SRS Pathloss Reference RS Update MAC CE is used to update a path loss reference signal of a common SRS, wherein the common SRS may refer to other SRSs except the SRS used for positioning.

[0104] like Figure 4 As shown, the existing SRS Pathloss Reference RS Update MAC CE is 3 bytes long, including a serving cell identifier (Serving Cell ID) field, a BWP identifier (BWP ID) field, an SRS resource set identifier (SRSResource Set ID) field, and a path loss reference signal identifier (Pathloss Reference RS ID) field. Among them, the length of the Pathloss Reference RS ID field is 6 bits. This embodiment extends the existing SRS PathlossReference RS Update MAC CE to a 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 the path loss reference signals of different types of positioning SRS, this embodiment can Figure 4 The length of the Pathloss Reference RS ID field in the MAC CE shown is 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.

[0105] In one embodiment, the first MAC CE indicates a path loss reference signal to be used by the SRS resource set; and / or a path loss reference signal to be used by the SRS resource.

[0106] Similar to Embodiment 1, the path loss reference signal indicated by the first MAC CE in this embodiment may include the following:

[0107] Serving cell SSB;

[0108] Neighboring cell SSB;

[0109] DL PRS;

[0110] CSI-RS.

[0111] Correspondingly, the Pathloss Reference RS ID field may specifically indicate the identifier of the serving cell SSB, the identifier of the neighboring cell SSB, the identifier of the DL PRS, and the identifier of the CSI-RS.

[0112] When the path loss reference signal configured by the first MAC CE is the serving cell SSB, in one embodiment, the first MAC CE may also indicate the cell information corresponding to the serving cell, such as PCI.

[0113] When the path loss reference signal configured by the first MAC CE is the SSB of a neighboring cell, the first MAC CE also indicates the cell information corresponding to the neighboring cell, such as the PCI.

[0114] When the path loss reference signal configured by the first MAC CE is DL PRS, the first MAC CE may also indicate configuration information to which the DL PRS belongs, such as a DL-PRS Resource Set ID and / or a DL-PRS Resource ID.

[0115] Accordingly, this embodiment may expand the DL-PRS Resource Set ID field, the DL-PRS Resource ID field and the PCI field. The content of each field may be the same as the content of the corresponding field in Embodiment 1 and will not be repeated here.

[0116] In one embodiment, this embodiment can use any N (N is a positive integer) reserved (R) fields in the MAC CE as the first indication information (F) field to indicate the type of the path loss reference signal. In one embodiment, the indication information is the above-mentioned first indication information. The specific indication method of the indication information field can be the same as that of Embodiment 1, and will not be repeated here.

[0117] In this embodiment, the serving cell ID field and the BWP ID field may be set in the first byte of the first MAC CE; the first indication information (F) field and the SRS resource set ID field may be set in the second byte of the first MAC CE; the path loss reference signal ID field may be set in the third byte of the first MAC CE. Subsequent fields in the first MAC CE may be optional fields.

[0118] Embodiment 3:

[0119] This embodiment extends the existing SP Positioning SRS Activation / Deactivation MAC CE so that the MAC CE can not only activate / deactivate the SRS for positioning and indicate the spatial relationship corresponding to the SRS resources, but also update the path loss reference signal of the SRS for positioning.

[0120] In one embodiment, the first MAC CE indicates a path loss reference signal to be used by the SRS resource set; and / or a path loss reference signal to be used by the SRS resource.

[0121] Figure 5 is a schematic diagram of the structure of the first MAC CE of Embodiment 3 of the present application. In one embodiment, Figure 5 As shown, the path loss reference signal information (Pathloss reference RS info) is an extended part of this embodiment, which can be used to indicate the path loss reference signal. The part before the path loss reference RS info is the content contained in the existing SPPositioning 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 resources. Specifically including:

[0122] Activation / Deactivation (A / D) field: This field is used to indicate activation or deactivation of the indicated SP PositioningSRS resource set. The length of this field is 1 bit, and a value of 1 indicates activation, and a value of 0 indicates deactivation.

[0123] Positioning SRS Resource Set's Cell ID field: 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 containing all resources indicated by the Spatial Relation for Resource ID field. This field is 5 bits long.

[0124] Positioning SRS Resource Set's BWPID field: This field indicates the uplink (UL) bandwidth part (BWP) as the code point of the DCI bandwidth part indicator field specified in TS38.212 [9]. It contains the activated / inactivated SPPositioning SRS resource set. If the C field is set to 0, this field is also used to indicate the identifier of the BWP containing all resources indicated by the SpatialRelation for Resource IDi field. This field is 2 bits long.

[0125] 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 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.

[0126] SUL field: This field is used to indicate whether the MAC CE supports normal uplink (NUL) carrier configuration or supplementary uplink (SUL) carrier configuration. When the value of this field is 1, it indicates that SUL carrier configuration is supported; when the value of this field is 0, it indicates that NUL carrier configuration is supported.

[0127] Positioning SRS Resource Set ID field: This field indicates the activated / inactivated SP Positioning SRS Resource Set, which may be the SRS-PosResourceSetId specified in TS 38.331[5]. The length of this field is 4 bits.

[0128] Spatial Relation for Resource Idi field: This field exists only when the MACCE is used for activation (for example, the A / D field is set to 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 relations, which can be indicated by the F field (F0 and F1).

[0129] 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.

[0130] Reserved (R) field R: This field has a value of 0.

[0131] 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 a first MAC CE, which includes the above fields. In one embodiment, the first MAC CE includes at least one of the following:

[0132] The second information indication field is used to indicate the second indication information of activating or deactivating the resource set of SRS used for positioning; such as the A / D field mentioned above.

[0133] 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.

[0134] The third indication information field is used to indicate whether the spatial relationship information is included; such as the above-mentioned S field.

[0135] The fourth indication information field is used to indicate whether there are bytes containing a resource serving cell identifier and a resource BWP identifier in the spatial relationship information; such as the C field mentioned above.

[0136] The fifth indication information field is used to indicate whether the first MAC CE is applied to normal uplink NUL carrier configuration or supplementary uplink SUL carrier configuration; such as the above-mentioned SUL field.

[0137] This embodiment extends the above SP Positioning SRS Activation / Deactivation MAC CE, and may add a path loss reference signal information (Pathloss reference RS info) part after the original field to generate a 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:

[0138] Serving cell SSB;

[0139] Neighboring cell SSB;

[0140] DL PRS;

[0141] CSI-RS;

[0142] Accordingly, the first MAC CE indicates at least one of the following:

[0143] The identifier of the serving cell SSB;

[0144] The identifier of the neighboring cell SSB and the cell information corresponding to the neighboring cell SSB;

[0145] The logo of DL PRS;

[0146] The identifier of CSI-RS.

[0147] Figure 6 FIG. 1 is a schematic diagram of the structure of the path loss reference signal information (Pathlossreference RS info) part in the first MAC CE of Embodiment 3 of the present application. Figure 6 As shown, this part includes:

[0148] Pathloss Reference RS ID field, DL-PRS Resource Set ID field, DL-PRS Resource ID field and PCI field. Among them, the Pathloss Reference RS ID field is a field that must be included, which is used to indicate the identifier of the path loss reference signal. The last three fields are optional fields. The contents of the aforementioned fields are the same as those of the corresponding fields in Example 1, and will not be repeated here.

[0149] In addition, Figure 5 and Figure 6 In the first MAC CE shown, the fields in the path loss reference signal information (Pathlossreference RS info) part, namely the path loss reference signal identifier (Pathloss Reference RSID) field, the DL-PRS Resource Set ID field, the DL-PRS Resource ID field and the PCI field are all set after the original fields 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, and the embodiments of the present application do not limit the order of the fields in the first MAC CE.

[0150] In one embodiment, this embodiment can use any N (N is a positive integer) reserved fields in the MAC CE as indication information (F) fields to indicate the type of the path loss reference signal. In one embodiment, the indication information is the first indication information mentioned above. The specific indication method of the indication information field can be the same as that of Embodiment 1, and will not be repeated here.

[0151] From the above, it can be seen that the method for configuring the path loss reference signal proposed in the embodiment of the present application can realize the configuration of the path loss reference signal of the SRS for positioning using MACCE, save RRC signaling overhead, and reduce latency.

[0152] The embodiment of the present application also proposes another method for configuring a path loss reference signal. Figure 7700 is a flowchart of a method 700 for configuring a path loss reference signal according to an embodiment of the present application, including:

[0153] S710: Send a first MAC CE; wherein the first MAC CE is used to configure a path loss reference signal of an SRS for positioning for a terminal device.

[0154] This method can be applied to a network device. The network device sends a first MAC CE to a terminal device, which can be used to update the path loss reference signal of the SRS used for positioning for the terminal device, and can also be used to initially configure the path loss reference signal of the SRS used for positioning for the terminal device.

[0155] In one embodiment, the first MAC CE is used to configure a path loss reference signal of an SRS for positioning for a terminal device, specifically:

[0156] The first MAC CE is used to configure a path loss reference signal used by an SRS resource set of an SRS for positioning for a terminal device; or,

[0157] The first MAC CE is used to configure a path loss reference signal used by an SRS resource of an SRS for positioning for a terminal device.

[0158] In one embodiment, the path loss reference signal includes at least one of the following:

[0159] Serving cell synchronization signal block SSB;

[0160] Neighboring cell SSB;

[0161] Downlink DL positioning reference signal PRS;

[0162] Channel state information CSI-reference signal RS;

[0163] Correspondingly, the first MAC CE indicates at least one of the following:

[0164] The identifier of the serving cell SSB;

[0165] The identifier of the neighboring cell SSB and the cell information corresponding to the neighboring cell SSB;

[0166] The logo of DL PRS;

[0167] The identifier of CSI-RS.

[0168] In one embodiment, when the first MAC CE indicates the identifier of the serving cell SSB, the first MAC CE also indicates the cell information corresponding to the serving cell SSB.

[0169] In one embodiment, the cell information includes a physical cell identity PCI.

[0170] In one embodiment, when the first MAC CE indicates the identifier of a DL PRS, the first MAC CE also 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.

[0171] In one embodiment, the first MAC CE indicates at least one of the following:

[0172] The identification of the serving cell;

[0173] The identifier of the uplink UL bandwidth part BWP;

[0174] The identifier of the SRS resource set.

[0175] In one embodiment, the first MAC CE includes at least one of the following:

[0176] The serving cell identification field is used to indicate the identification of the serving cell;

[0177] The BWP identification field is used to indicate the identification of the UL BWP;

[0178] A first indication information field, used to indicate the type of the path loss reference signal;

[0179] The SRS resource set identifier field is used to indicate the identifier of the SRS resource set;

[0180] The path loss reference signal identification field is used to indicate the identification of the serving cell SSB, the identification of the neighboring cell SSB, the identification of the DLPRS or the identification of the CSI-RS.

[0181] In one embodiment, the length of the path loss reference signal identification field is 8 bits.

[0182] In one embodiment, the first MAC CE further includes at least one of the following:

[0183] The DL PRS resource set identifier field is used to indicate the resource set identifier of the DL PRS;

[0184] The DL PRS resource identifier field is used to indicate the resource identifier of the DL PRS;

[0185] The PCI field is used to indicate the cell information corresponding to the serving cell SSB or the neighboring cell SSB.

[0186] In one embodiment, the serving cell identification field and the BWP identification field are set in the first byte of the first MAC CE;

[0187] The first indication information field and the SRS resource set identification field are set in the second byte of the first MAC CE;

[0188] The path loss reference signal identification field is set in the third byte of the first MAC CE.

[0189] In one embodiment, the first MAC CE further includes:

[0190] Field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS used for positioning and indicate the spatial relationship corresponding to the SRS resources.

[0191] In one embodiment, 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 after the position of the field in the second MAC CE.

[0192] In one embodiment, the field in the second MAC CE includes at least one of the following:

[0193] The second indication information field is used to indicate activation or deactivation of a resource set of the SRS used for positioning;

[0194] 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;

[0195] The third indication information field is used to indicate whether the spatial relationship information is included;

[0196] The fourth indication information field is used to indicate whether there is a byte containing a resource serving cell identifier and a resource BWP identifier in the spatial relationship information;

[0197] The fifth indication information field is used to indicate whether the first MAC CE is applied to a normal uplink NUL carrier configuration or a supplementary uplink SUL carrier configuration.

[0198] The present application also provides a terminal device, Figure 8 800 is a schematic diagram of the structure of a terminal device according to an embodiment of the present application, including:

[0199] The receiving module 810 is used to receive a first MAC CE; wherein the first MAC CE is used to configure a path loss reference signal of an SRS for positioning for a terminal device.

[0200] In one embodiment, the first MAC CE is used to configure a path loss reference signal of an SRS for positioning for a terminal device, specifically:

[0201] The first MAC CE is used to configure a path loss reference signal used by an SRS resource set of an SRS for positioning for a terminal device; or,

[0202] The first MAC CE is used to configure a path loss reference signal used by an SRS resource of an SRS for positioning for a terminal device.

[0203] In one embodiment, the path loss reference signal includes at least one of the following:

[0204] Serving cell synchronization signal block SSB;

[0205] Neighboring cell SSB;

[0206] Downlink DL positioning reference signal PRS;

[0207] Channel state information CSI-reference signal RS;

[0208] Correspondingly, the first MAC CE indicates at least one of the following:

[0209] The identifier of the serving cell SSB;

[0210] The identifier of the neighboring cell SSB and the cell information corresponding to the neighboring cell SSB;

[0211] The logo of DL PRS;

[0212] The identifier of CSI-RS.

[0213] In one embodiment, when the first MAC CE indicates the identifier of the serving cell SSB, the first MAC CE also indicates the cell information corresponding to the serving cell SSB.

[0214] In one embodiment, the cell information includes a physical cell identity PCI.

[0215] In one embodiment, when the first MAC CE indicates the identifier of a DL PRS, the first MAC CE also 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.

[0216] In one embodiment, the first MAC CE indicates at least one of the following:

[0217] The identification of the serving cell;

[0218] The identifier of the uplink UL bandwidth part BWP;

[0219] The identifier of the SRS resource set.

[0220] In one embodiment, the first MAC CE includes at least one of the following:

[0221] The serving cell identification field is used to indicate the identification of the serving cell;

[0222] The BWP identification field is used to indicate the identification of the UL BWP;

[0223] A first indication information field, used to indicate the type of the path loss reference signal;

[0224] The SRS resource set identifier field is used to indicate the identifier of the SRS resource set;

[0225] The path loss reference signal identification field is used to indicate the identification of the serving cell SSB, the identification of the neighboring cell SSB, the identification of the DLPRS or the identification of the CSI-RS.

[0226] In one embodiment, the length of the path loss reference signal identification field is 8 bits.

[0227] In one embodiment, the first MAC CE further includes at least one of the following:

[0228] The DL PRS resource set identifier field is used to indicate the resource set identifier of the DL PRS;

[0229] The DL PRS resource identifier field is used to indicate the resource identifier of the DL PRS;

[0230] The PCI field is used to indicate the cell information corresponding to the serving cell SSB or the neighboring cell SSB.

[0231] In one embodiment, the serving cell identification field and the BWP identification field are set in the first byte of the first MAC CE;

[0232] The first indication information field and the SRS resource set identification field are set in the second byte of the first MAC CE;

[0233] The path loss reference signal identification field is set in the third byte of the first MAC CE.

[0234] In one embodiment, the first MAC CE further includes:

[0235] Field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS used for positioning and indicate the spatial relationship corresponding to the SRS resources.

[0236] In one embodiment, 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 after the position of the field in the second MAC CE.

[0237] In one embodiment, the field in the second MAC CE includes at least one of the following:

[0238] The second indication information field is used to indicate activation or deactivation of a resource set of the SRS used for positioning;

[0239] 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;

[0240] The third indication information field is used to indicate whether the spatial relationship information is included;

[0241] The fourth indication information field is used to indicate whether there is a byte containing a resource serving cell identifier and a resource BWP identifier in the spatial relationship information;

[0242] The fifth indication information field is used to indicate whether the first MAC CE is applied to a normal uplink NUL carrier configuration or a supplementary uplink SUL carrier configuration.

[0243] It should be understood that the above and other operations and / or functions of the modules in the terminal device according to the embodiment of the present application are to achieve Figure 2 The corresponding process of the terminal device in the method 200 is not repeated here for the sake of brevity.

[0244] The embodiment of the present application also provides a network device, Fig. 9 9 is a schematic diagram of the structure of a network device 900 according to an embodiment of the present application, including:

[0245] The sending module 910 is used to send a first MAC CE; wherein the first MAC CE is used to configure a path loss reference signal of an SRS for positioning for a terminal device.

[0246] In one embodiment, the first MAC CE is used to configure a path loss reference signal of an SRS for positioning for a terminal device, specifically:

[0247] The first MAC CE is used to configure a path loss reference signal used by an SRS resource set of an SRS for positioning for a terminal device; or,

[0248] The first MAC CE is used to configure a path loss reference signal used by an SRS resource of an SRS for positioning for a terminal device.

[0249] In one embodiment, the path loss reference signal includes at least one of the following:

[0250] Serving cell synchronization signal block SSB;

[0251] Neighboring cell SSB;

[0252] Downlink DL positioning reference signal PRS;

[0253] Channel state information CSI-reference signal RS;

[0254] Correspondingly, the first MAC CE indicates at least one of the following:

[0255] The identifier of the serving cell SSB;

[0256] The identifier of the neighboring cell SSB and the cell information corresponding to the neighboring cell SSB;

[0257] The logo of DL PRS;

[0258] The identifier of CSI-RS.

[0259] In one embodiment, when the first MAC CE indicates the identifier of the serving cell SSB, the first MAC CE also indicates the cell information corresponding to the serving cell SSB.

[0260] In one embodiment, the cell information includes a physical cell identity PCI.

[0261] In one embodiment, when the first MAC CE indicates the identifier of a DL PRS, the first MAC CE also 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.

[0262] In one embodiment, the first MAC CE indicates at least one of the following:

[0263] The identification of the serving cell;

[0264] The identifier of the uplink UL bandwidth part BWP;

[0265] The identifier of the SRS resource set.

[0266] In one embodiment, the first MAC CE includes at least one of the following:

[0267] The serving cell identification field is used to indicate the identification of the serving cell;

[0268] The BWP identification field is used to indicate the identification of the UL BWP;

[0269] A first indication information field, used to indicate the type of the path loss reference signal;

[0270] The SRS resource set identifier field is used to indicate the identifier of the SRS resource set;

[0271] The path loss reference signal identification field is used to indicate the identification of the serving cell SSB, the identification of the neighboring cell SSB, the identification of the DLPRS or the identification of the CSI-RS.

[0272] In one embodiment, the length of the path loss reference signal identification field is 8 bits.

[0273] In one embodiment, the first MAC CE further includes at least one of the following:

[0274] The DL PRS resource set identifier field is used to indicate the resource set identifier of the DL PRS;

[0275] The DL PRS resource identifier field is used to indicate the resource identifier of the DL PRS;

[0276] The PCI field is used to indicate the cell information corresponding to the serving cell SSB or the neighboring cell SSB.

[0277] In one embodiment, the serving cell identification field and the BWP identification field are set in the first byte of the first MAC CE;

[0278] The first indication information field and the SRS resource set identification field are set in the second byte of the first MAC CE;

[0279] The path loss reference signal identification field is set in the third byte of the first MAC CE.

[0280] In one embodiment, the first MAC CE further includes:

[0281] Field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS used for positioning and indicate the spatial relationship corresponding to the SRS resources.

[0282] In one embodiment, 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 after the position of the field in the second MAC CE.

[0283] In one embodiment, the field in the second MAC CE includes at least one of the following:

[0284] The second indication information field is used to indicate activation or deactivation of a resource set of the SRS used for positioning;

[0285] 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;

[0286] The third indication information field is used to indicate whether the spatial relationship information is included;

[0287] The fourth indication information field is used to indicate whether there is a byte containing a resource serving cell identifier and a resource BWP identifier in the spatial relationship information;

[0288] The fifth indication information field is used to indicate whether the first MAC CE is applied to a normal uplink NUL carrier configuration or a supplementary uplink SUL carrier configuration.

[0289] It should be understood that the above and other operations and / or functions of the modules in the network device according to the embodiment of the present application are to achieve Figure 7 The corresponding process of the network device in the method 700 is not repeated here for the sake of brevity.

[0290] Fig.10 is a schematic structural diagram of a communication device 1000 according to an embodiment of the present application. Fig.10 The communication device 1000 shown includes a processor 1010, and the processor 1010 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0291] In one embodiment, if Fig.10 As shown, 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 method in the embodiment of the present application.

[0292] The memory 1020 may be a separate device independent of the processor 1010 , or may be integrated into the processor 1010 .

[0293] In one embodiment, if Fig.10 As shown, 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 information or data sent by other devices.

[0294] The transceiver 1030 may include a transmitter and a receiver. The transceiver 1030 may further include an antenna, and the number of antennas may be one or more.

[0295] In one embodiment, 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 signal of an embodiment of the present application, which will not be repeated here for the sake of brevity.

[0296] In one embodiment, the communication device 1000 may be a network device of an embodiment of the present application, and the communication device 1000 may implement the corresponding process implemented by the network device in the configuration method of each path loss reference signal of an embodiment of the present application, which will not be repeated here for the sake of brevity.

[0297] Fig.11 is a schematic structural diagram of a chip 1100 according to an embodiment of the present application. Fig.11 The chip 1100 shown includes a processor 1110, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0298] In one embodiment, if Fig.11 As shown, 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 method in the embodiment of the present application.

[0299] The memory 1120 may be a separate device independent of the processor 1110 , or may be integrated into the processor 1110 .

[0300] In one embodiment, 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 obtain information or data sent by other devices or chips.

[0301] In one embodiment, 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.

[0302] In one embodiment, 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. For the sake of brevity, it will not be repeated here.

[0303] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0304] The processor mentioned above may be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC) or other programmable logic devices, transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor mentioned above may be a microprocessor or any conventional processor, etc.

[0305] The memory mentioned above may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM) or a flash memory. The volatile memory may be a random access memory (RAM).

[0306] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), 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 link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, 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.

[0307] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. The computer instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instruction can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, a data center, etc. that contains one or more available media integrations. 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)).

[0308] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0309] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0310] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for configuring a path loss reference signal, the method being applied to a terminal device, the method comprising: Receiving a first media access control MAC control element CE; The first MAC CE is used to configure a path loss reference signal of a sounding reference signal SRS for positioning for the terminal device; The first MAC CE includes: 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; An SRS resource set identifier field is used to indicate an identifier of an SRS resource set; and A path loss reference signal identification field is used to indicate the identification of the serving cell SSB, the identification of the neighboring cell SSB, the identification of the DL PRS or the identification of the CSI-RS, wherein the length of the path loss reference signal identification field is 8 bits; The first MAC CE further includes: The DL PRS resource set identifier field is used to indicate the resource set identifier of the DL PRS; A DL PRS resource identifier field is used to indicate a resource identifier of a DL PRS; and The PCI field is used to indicate the cell information corresponding to the serving cell SSB or the neighboring cell SSB.

2. The method according to claim 1, wherein: The first MAC CE is used to configure a path loss reference signal of an SRS for positioning for the terminal device, specifically: The first MAC CE is used to configure a path loss reference signal used by an SRS resource set of an SRS for positioning for a terminal device; or, The first MAC CE is used to configure a path loss reference signal used by an SRS resource of an SRS for positioning for a terminal device.

3. The method according to claim 1, wherein: 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 identifier of the serving cell SSB; The identifier of the neighboring cell SSB and the cell information corresponding to the neighboring cell SSB; The logo of DL PRS; The identifier of CSI-RS.

4. The method according to any one of claims 1 to 3, wherein: When the first MAC CE indicates the identifier of the serving cell SSB, the first MAC CE also indicates the cell information corresponding to the serving cell SSB.

5. The method according to claim 3, wherein: The cell information includes a physical cell identifier PCI.

6. The method according to any one of claims 1 to 3, wherein: When the first MAC CE indicates the identifier of the DL PRS, the first MAC CE further indicates the 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.

7. The method according to any one of claims 1 to 3, wherein: The first MAC CE indicates: The identification of the serving cell; an identifier of the uplink UL bandwidth part BWP; and The identifier of the SRS resource set.

8. The method according to claim 1, wherein: The serving cell identification field and the BWP identification field are set in the first byte of the first MAC CE; The first indication information field and the SRS resource set identification field are set in the second byte of the first MAC CE; The path loss reference signal identification field is set in the third byte of the first MAC CE.

9. The method according to claim 1, wherein: The first MAC CE further includes: Field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS used for positioning and indicate the spatial relationship corresponding to the SRS resources.

10. The method according to claim 9, wherein: 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 after the position of the field in the second MAC CE.

11. The method according to claim 9, wherein: The field in the second MAC CE includes at least one of the following: The second indication information field is used to indicate activation or deactivation of a resource set of the SRS used for positioning; 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; The third indication information field is used to indicate whether the spatial relationship information is included; The fourth indication information field is used to indicate whether there is a byte containing a resource serving cell identifier and a 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 normal uplink NUL carrier configuration or supplementary uplink SUL carrier configuration.

12. A method for configuring a path loss reference signal, the method being applied to a network device, the method comprising: Send a first media access control MAC control element CE; The first MAC CE is used to configure a path loss reference signal of an SRS for positioning for the terminal device; The first MAC CE includes: 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; An SRS resource set identifier field is used to indicate an identifier of an SRS resource set; and A path loss reference signal identification field is used to indicate the identification of the serving cell SSB, the identification of the neighboring cell SSB, the identification of the DL PRS or the identification of the CSI-RS, wherein the length of the path loss reference signal identification field is 8 bits; The first MAC CE further includes: The DL PRS resource set identifier field is used to indicate the resource set identifier of the DL PRS; A DL PRS resource identifier field is used to indicate a resource identifier of a DL PRS; and The PCI field is used to indicate the cell information corresponding to the serving cell SSB or the neighboring cell SSB.

13. The method according to claim 12, wherein: The first MAC CE is used to configure a path loss reference signal of an SRS for positioning for the terminal device, specifically: The first MAC CE is used to configure a path loss reference signal used by an SRS resource set of an SRS for positioning for a terminal device; or, The first MAC CE is used to configure a path loss reference signal used by an SRS resource of an SRS for positioning for a terminal device.

14. The method according to claim 12, wherein: 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 identifier of the serving cell SSB; The identifier of the neighboring cell SSB and the cell information corresponding to the neighboring cell SSB; The logo of DL PRS; The identifier of CSI-RS.

15. The method according to any one of claims 12 to 14, wherein: When the first MAC CE indicates the identifier of the serving cell SSB, the first MAC CE also indicates the cell information corresponding to the serving cell SSB.

16. The method according to claim 14, wherein: The cell information includes a physical cell identifier PCI.

17. The method according to any one of claims 12 to 14, wherein: When the first MAC CE indicates the identifier of the DL PRS, the first MAC CE further indicates the 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.

18. The method according to any one of claims 12 to 14, wherein: The first MAC CE indicates: The identification of the serving cell; an identifier of the uplink UL bandwidth part BWP; and The identifier of the SRS resource set.

19. The method according to claim 12, wherein: The serving cell identification field and the BWP identification field are set in the first byte of the first MAC CE; The first indication information field and the SRS resource set identification field are set in the second byte of the first MAC CE; The path loss reference signal identification field is set in the third byte of the first MAC CE.

20. The method according to claim 12, wherein: The first MAC CE further includes: Field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS used for positioning and indicate the spatial relationship corresponding to the SRS resources.

21. The method according to claim 20, wherein: 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 after the position of the field in the second MAC CE.

22. The method according to claim 20, wherein: The field in the second MAC CE includes at least one of the following: The second indication information field is used to indicate activation or deactivation of a resource set of the SRS used for positioning; 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; The third indication information field is used to indicate whether the spatial relationship information is included; The fourth indication information field is used to indicate whether there is a byte containing a resource serving cell identifier and a 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 normal uplink NUL carrier configuration or supplementary uplink SUL carrier configuration.

23. A terminal device, comprising: A receiving module, configured to receive a first media access control MAC control unit CE; The first MAC CE is used to configure a path loss reference signal of a sounding reference signal SRS for positioning for the terminal device; The first MAC CE includes: 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; An SRS resource set identifier field is used to indicate an identifier of an SRS resource set; and A path loss reference signal identification field is used to indicate the identification of the serving cell SSB, the identification of the neighboring cell SSB, the identification of the DL PRS or the identification of the CSI-RS, wherein the length of the path loss reference signal identification field is 8 bits; The first MAC CE further includes: The DL PRS resource set identifier field is used to indicate the resource set identifier of the DL PRS; A DL PRS resource identifier field is used to indicate a resource identifier of a DL PRS; and The PCI field is used to indicate the cell information corresponding to the serving cell SSB or the neighboring cell SSB.

24. The terminal device according to claim 23, wherein: The first MAC CE is used to configure a path loss reference signal of an SRS for positioning for the terminal device, specifically: The first MAC CE is used to configure a path loss reference signal used by an SRS resource set of an SRS for positioning for a terminal device; or, The first MAC CE is used to configure a path loss reference signal used by an SRS resource of an SRS for positioning for a terminal device.

25. The terminal device according to claim 23, wherein: 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 identifier of the serving cell SSB; The identifier of the neighboring cell SSB and the cell information corresponding to the neighboring cell SSB; The logo of DL PRS; The identifier of CSI-RS.

26. The terminal device according to any one of claims 23 to 25, wherein: When the first MAC CE indicates the identifier of the serving cell SSB, the first MAC CE also indicates the cell information corresponding to the serving cell SSB.

27. The terminal device according to claim 25, wherein: The cell information includes a physical cell identifier PCI.

28. The terminal device according to any one of claims 23 to 25, wherein: When the first MAC CE indicates the identifier of the DL PRS, the first MAC CE further indicates the 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.

29. The terminal device according to any one of claims 23 to 25, wherein: The first MAC CE indicates: The identification of the serving cell; an identifier of the uplink UL bandwidth part BWP; and The identifier of the SRS resource set.

30. The terminal device according to claim 23, wherein: The serving cell identification field and the BWP identification field are set in the first byte of the first MAC CE; The first indication information field and the SRS resource set identification field are set in the second byte of the first MAC CE; The path loss reference signal identification field is set in the third byte of the first MAC CE.

31. The terminal device according to claim 23, wherein: The first MAC CE further includes: Field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS used for positioning and indicate the spatial relationship corresponding to the SRS resources.

32. The terminal device according to claim 31, wherein: 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 after the position of the field in the second MAC CE.

33. The terminal device according to claim 31, wherein: The field in the second MAC CE includes at least one of the following: The second indication information field is used to indicate activation or deactivation of a resource set of the SRS used for positioning; 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; The third indication information field is used to indicate whether the spatial relationship information is included; The fourth indication information field is used to indicate whether there is a byte containing a resource serving cell identifier and a 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 normal uplink NUL carrier configuration or supplementary uplink SUL carrier configuration.

34. A network device comprising: A sending module, configured to send a first media access control MAC control unit CE; The first MAC CE is used to configure a path loss reference signal of an SRS for positioning for the terminal device; The first MAC CE includes: 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; An SRS resource set identifier field is used to indicate an identifier of an SRS resource set; and A path loss reference signal identification field is used to indicate the identification of the serving cell SSB, the identification of the neighboring cell SSB, the identification of the DL PRS or the identification of the CSI-RS, wherein the length of the path loss reference signal identification field is 8 bits; The first MAC CE further includes: The DL PRS resource set identifier field is used to indicate the resource set identifier of the DL PRS; A DL PRS resource identifier field is used to indicate a resource identifier of a DL PRS; and The PCI field is used to indicate the cell information corresponding to the serving cell SSB or the neighboring cell SSB.

35. The network device according to claim 34, wherein: The first MAC CE is used to configure a path loss reference signal of an SRS for positioning for the terminal device, specifically: The first MAC CE is used to configure a path loss reference signal used by an SRS resource set of an SRS for positioning for a terminal device; or, The first MAC CE is used to configure a path loss reference signal used by an SRS resource of an SRS for positioning for a terminal device.

36. The network device according to claim 34, wherein: 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 identifier of the serving cell SSB; The identifier of the neighboring cell SSB and the cell information corresponding to the neighboring cell SSB; The logo of DL PRS; The identifier of CSI-RS.

37. The network device according to any one of claims 34 to 36, wherein: When the first MAC CE indicates the identifier of the serving cell SSB, the first MAC CE also indicates the cell information corresponding to the serving cell SSB.

38. The network device according to claim 36, wherein: The cell information includes a physical cell identifier PCI.

39. The network device according to any one of claims 34 to 36, wherein: When the first MAC CE indicates the identifier of the DL PRS, the first MAC CE further indicates the 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.

40. The network device according to any one of claims 34 to 36, wherein: The first MAC CE indicates: The identification of the serving cell; an identifier of the uplink UL bandwidth part BWP; and The identifier of the SRS resource set.

41. The network device according to claim 34, wherein: The serving cell identification field and the BWP identification field are set in the first byte of the first MAC CE; The first indication information field and the SRS resource set identification field are set in the second byte of the first MAC CE; The path loss reference signal identification field is set in the third byte of the first MAC CE.

42. The network device according to claim 34, wherein: The first MAC CE further includes: Field in the second MAC CE; the second MAC CE is used to activate or deactivate the SRS used for positioning and indicate the spatial relationship corresponding to the SRS resources.

43. The network device according to claim 42, wherein: 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 after the position of the field in the second MAC CE.

44. The network device according to claim 42, wherein: The field in the second MAC CE includes at least one of the following: The second indication information field is used to indicate activation or deactivation of a resource set of the SRS used for positioning; 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; The third indication information field is used to indicate whether the spatial relationship information is included; The fourth indication information field is used to indicate whether there is a byte containing a resource serving cell identifier and a 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 normal uplink NUL carrier configuration or supplementary uplink SUL carrier configuration.

45. A terminal device, comprising: A processor and a memory, wherein 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 to execute the method according to any one of claims 1 to 11.

46. ​​A communication device comprising: A processor and a memory, wherein 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 to execute the method according to any one of claims 12 to 22.

47. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 11.

48. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 12 to 22.

49. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 11.

50. A computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 12 to 22.

51. A computer program product comprising computer program instructions, the computer program instructions causing a computer to execute the method as claimed in any one of claims 1 to 11.

52. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 12 to 22.

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