Information indication method, information acquisition method, network device, and terminal device

Abstract

The present invention discloses an information indication method, an information acquisition method, a terminal device, a network device, a chip, a computer-readable storage medium, a computer program product and a computer program. The method comprises: a network device sends a media access control MAC control element CE to a terminal device; wherein the MAC CE is used to indicate at least one of the following contents: activation, update or deactivation of channel sounding reference signal spatial relationship information SRI; the SRI is a non-periodic AP SRI or a semi-static SP SRI; update of the path loss of the channel sounding reference signal SRS; update of the path loss of the physical uplink shared channel PUSCH.

Description

Technical Field

[0001] The present invention relates to the field of information processing technology, and in particular to an information indication method, an information acquisition method, a network device, a terminal device, a chip, a computer-readable storage medium, a computer program product, and a computer program. Background Art

[0002] In the related technology, the update of the path loss of PUSCH (Physical Uplink Share CHannel) is related to the change of the spatial relationship of SRS (Sounding Reference Signal). In this case, if the SRS spatial parameters change, the PUSCH path loss needs to be updated. In the relevant conclusions of RAN1, the activation and update of the SRS path loss reference signal (RS, Reference Signal) and the activation and deactivation of the SRS space can be implemented based on MAC (Media Access Control) CE (Control Element). However, the specific MAC CE format is not provided. Furthermore, how to save signaling overhead while ensuring that the MACCE indicates richer content has also become one of the problems that need to be solved. Summary of the invention

[0003] To solve the above technical problems, embodiments of the present invention provide an information indication method, an information acquisition method, a network device, a terminal device, a chip, a computer-readable storage medium, a computer program product, and a computer program.

[0004] In a first aspect, an information indication method is provided, comprising:

[0005] The network device sends a media access control MAC control element CE to the terminal device;

[0006] The MAC CE is used to indicate at least one of the following:

[0007] Activation, update or deactivation of channel sounding reference signal spatial relationship information SRI; the SRI is aperiodic AP SRI or semi-static SP SRI;

[0008] Update of path loss of channel sounding reference signal SRS;

[0009] Update of physical uplink shared channel PUSCH path loss.

[0010] In a second aspect, a method for obtaining information is provided, comprising:

[0011] The terminal device receives the media access control MAC control element CE sent by the network device;

[0012] The MAC CE is used to indicate at least one of the following:

[0013] Activation, update or deactivation of channel sounding reference signal spatial relationship information SRI; the SRI is aperiodic AP SRI or semi-static SP SRI;

[0014] Update of path loss of channel sounding reference signal SRS;

[0015] Update of physical uplink shared channel PUSCH path loss.

[0016] In a third aspect, a network device is provided, including:

[0017] A first communication unit sends a media access control MAC control element CE to a terminal device;

[0018] The MAC CE is used to indicate at least one of the following:

[0019] Activation, update or deactivation of channel sounding reference signal spatial relationship information SRI; the SRI is aperiodic AP SRI or semi-static SP SRI;

[0020] Update of path loss of channel sounding reference signal SRS;

[0021] Update of physical uplink shared channel PUSCH path loss.

[0022] In a fourth aspect, a terminal device is provided, including:

[0023] A second communication unit receives a media access control MAC control element CE sent by a network device;

[0024] The MAC CE is used to indicate at least one of the following:

[0025] Activation, update or deactivation of channel sounding reference signal spatial relationship information SRI; the SRI is aperiodic AP SRI or semi-static SP SRI;

[0026] Update of path loss of channel sounding reference signal SRS;

[0027] Update of physical uplink shared channel PUSCH path loss.

[0028] In a fifth aspect, a network device is provided, comprising: a processor and a memory for storing a computer program that can be run on the processor,

[0029] The memory is used to store computer programs, and the processor is used to call and run the computer program stored in the memory to execute the steps of the above method.

[0030] In a sixth aspect, a terminal device is provided, comprising: a processor and a memory for storing a computer program that can be run on the processor,

[0031] The memory is used to store computer programs, and the processor is used to call and run the computer program stored in the memory to execute the steps of the above method.

[0032] In a seventh aspect, a chip is provided, comprising: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the above method.

[0033] In an eighth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium is used to store a computer program, and the computer program enables a computer to execute the steps of the above method.

[0034] In a ninth aspect, a computer program product is provided, comprising computer program instructions, which enable a computer to execute the above method.

[0035] In a ninth aspect, a computer program is provided, wherein the computer program enables a computer to execute the above method.

[0036] By adopting the above solution, it is possible to indicate through one MAC CE: at least one of the following: activation, update or deactivation of channel sounding reference signal spatial relationship information SRI, update of path loss of channel sounding reference signal SRS, and update of path loss of physical uplink shared channel PUSCH. In this way, it is possible to avoid the problem that one MAC CE is involved for each of the above contents, and thus multiple MAC CEs need to be sent to indicate the above, resulting in the inability to save signaling. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of a communication system architecture provided by an embodiment of the present invention. Figure 1 ;

[0038] Figure 2 A schematic diagram of a flow chart of an information indication method provided by an embodiment of the present invention;

[0039] Figure 3 A schematic diagram of a flow chart of an information acquisition method provided by an embodiment of the present invention;

[0040] Figure 4-Figure 6Schematic diagram of the formats of three MAC CEs provided in an embodiment of the present invention;

[0041] Figure 7 A schematic diagram of the structure of a network device provided in an embodiment of the present invention;

[0042] Figure 8 A schematic diagram of the structure of a terminal device provided in an embodiment of the present invention;

[0043] Fig. 9 A schematic diagram of the structure of a communication device provided in an embodiment of the present invention;

[0044] Fig.10 is a schematic block diagram of a chip provided in an embodiment of the present application;

[0045] Fig.11 This is a schematic diagram of a communication system architecture provided by an embodiment of the present application. Figure 2 . DETAILED DESCRIPTION

[0046] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present invention, the implementation of the embodiments of the present invention is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not intended to limit the embodiments of the present invention.

[0047] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: 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, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

[0049] For example, the communication system 100 used in the embodiment of the present application can be as follows: Figure 1 As shown. The communication system 100 may include a network device 110, which may be a device that communicates with a UE 120 (or a communication terminal device, a terminal device). The network device 110 may provide communication coverage for a specific geographical area, and may communicate with a UE located in the coverage area. Optionally, the network device 110 may be a network device (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a network device (NodeB, NB) in a WCDMA system, or an evolved network device (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

[0050] The communication system 100 also includes at least one UE 120 located within the coverage of the network device 110. As used herein, "UE" includes but is not limited to being connected via a wired line, such as via a Public Switched Telephone Networks (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as, for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and / or a device of another UE configured to receive / send communication signals; and / or an Internet of Things (IoT) device. A UE configured to communicate via a wireless interface may be referred to as a "wireless communication terminal device", "wireless terminal device" or "mobile terminal device".

[0051] Optionally, UE120 can perform device to device (D2D) communication.

[0052] 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.

[0053] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present invention, the implementation of the embodiments of the present invention is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not intended to limit the embodiments of the present invention.

[0054] In the related art, in version 15, the RRC configures the association between sri-PUSCH-PowerControlId (SRI PUSCH-power control identifier) ​​and PUSCH-PathlossReferenceRS-Id (PUSCH-path loss reference signal RS-identifier). In addition, the path loss RS (reference signal) used for PUSCH transmission (codebook-based or non-codebook-based) scheduled by DCI format 0_1 ​​is implicitly indicated by the SRI (srs resource indicator (srsresourceindicator, sri) indicated in the scheduling DCI (downlink control information, DownLink Control Information). Then, the terminal device determines the path loss RS based on the value of PUSCH-pathlossReferenceRS-Id mapped to the SRI field in DCI format 0_1.

[0055] In this case, an RRC reconfiguration message is required to update the mapping between sri-PUSCH-PowerControlId and PUSCH-PathlossReferenceRS-Id.

[0056] The information content in the RRC reconfiguration message may be as follows:

[0057]

[0058] Furthermore, in order to reduce the waiting time caused by the RRC reconfiguration message, RAN 1 agreed (the relevant agreement is as follows) to introduce a new MAC CE to activate / update the value of PUSCH-PathlossReferenceRS-Id corresponding to sri-PUSCH-PowerControlId. RAN1 also agreed to extend maxNrofPUSCH-PathlossReferenceRSs (that is, the number of PUSCH path loss reference signals) to 64, compared to 4 in Release 15.

[0059] If the use of SRS resource sets is configured as "codebook-based or non-codebook-based", the PUSCH path loss update is related to the change of SRS spatial relationship. In this case, if the corresponding SRS spatial relationship changes, the PUSCH PL will be updated, which means that the SRS spatial relationship and PUSCH PL can be updated simultaneously through a single MAC CE.

[0060] Based on the conclusions obtained in RAN1, new MAC CEs related to AP-SRS / SP-SRS path loss RS activation / update and AP SRS spatial activation / deactivation should be introduced.

[0061] The conclusions drawn about RAN 1 can be shown as follows:

[0062] The path loss reference RS of AP-SRS / SP-SRS can be activated / updated through MAC CE.

[0063] Multiple path loss RSs can be configured for the UE via RRC, and one of them can be activated / updated for the SRS resource set via MAC CE. The relevant signaling details are provided in RAN 2.

[0064] Reuse the RSRP filtered by higher layers for path loss measurement and define the applicable timing after MAC CE.

[0065] The filtered RSRP value of the previous path loss RS will be used until the application time, which is the next time slot after the 5th measurement sample, where the first measurement sample corresponds to the first instance, 3 milliseconds after sending the ACK for the MAC CE.

[0066] This is only applicable for UEs that support RRC configurable number of path loss RS greater than 4 and only if MAC CE activated PL RS is not tracked. UE is required to track activated PL RS only when RRC configured PL RS greater than 4.

[0067] 3ms after sending the ACK for the MAC CE, it is up to the UE whether to update the filtered RSRP value of the previous PL RS. A LS is sent to RAN4 to solicit opinions on this working assumption.

[0068] For UL beam management latency and overhead reduction, aperiodic SRS based MAC CE spatial relation update for each resource level is supported.

[0069] In RAN1#97, the supported functionality of MAC CE based spatial relation update for aperiodic SRS per resource level is applicable to at least 3 supported usages, such as codebook based UL, non-codebook based UL, beam management.

[0070] In RAN1#98, the following working assumptions are confirmed after modification:

[0071] The functionality supported by MAC CE based aperiodic SRS spatial relation update is applicable to antenna switching at each SRS resource level. In case of antenna switching, the UE does not expect to be configured with different spatial relations within the same set.

[0072] From this, it can be seen that based on the above analysis, if the activation and deactivation of AP / SP SRI (SRI (SRS spatialrelation info)) is to be realized, and the pathloss RS ID of the SRS can be indicated, and at the same time, the pathloss RS ID of the PUSCH is indicated, it may be necessary to design two or three MAC CEs to achieve it, which will generate multiple MAC CEs, and signaling cannot be saved.

[0073] The embodiment of the present invention provides an information indication method, such as Figure 2 As shown, including:

[0074] Step 21: The network device sends a MAC CE to the terminal device;

[0075] The MAC CE is used to indicate at least one of the following:

[0076] Activation, update or deactivation of channel sounding reference signal spatial relationship information (SRI, SRS Spatial Relation Info); the SRI is aperiodic (AP, aperiodic) SRI or semi-static (SP, Semi-Persistent) SRI.

[0077] Update of path loss of channel sounding reference signal SRS;

[0078] Update of physical uplink shared channel PUSCH path loss.

[0079] Correspondingly, the terminal device side also provides an information acquisition method, such as Figure 3 As shown, including:

[0080] Step 31: The terminal device receives a media access control MAC control element CE sent by the network device;

[0081] The MAC CE is used to indicate at least one of the following:

[0082] Activation, updating or deactivation of channel sounding reference signal spatial relationship information SRI; the SRI is a non-periodic AP SRI or a semi-static SP SRI.

[0083] This embodiment provides the above-mentioned solution and can provide a new MAC CE format. The MAC CE can be used for activation, update or deactivation of AP / SPSRI, and can indicate the pathloss RS ID of the SRS. At the same time, if the usage configured by the SRS is "codebook-based or non-codebookbased", the MAC CE can also simultaneously indicate the pathloss RS ID of the PUSCH.

[0084] Combine the following Figure 4 , the format of the MAC CE provided in this embodiment is described in detail.

[0085] First, the relevant indication fields for activation, update or deactivation of AP / SP SRI are explained:

[0086] The MAC CE includes a first indication field for indicating activation, update or deactivation of an SRS resource set;

[0087] The SRS resource set is an AP SRS resource set or an SP SRS resource set.

[0088] Combination Figure 4 From the above, the first indication field can be "A / D" in MAC CE, with a length of 1 bit. Further, if the first indication field is set to the first value, it can indicate activation or update of the SRS resource set, and if it is set to the second value, it can indicate deactivation of the SRS resource set. The first value can be "1" and the second value can be "0", and vice versa. It can be set according to the actual situation.

[0089] Furthermore, when the SRS resource set is an AP SRS resource set, if the first indication field is set to a first value, it can be considered that the AP SRS resource set is updated, and if it is set to a second value, it can be considered that the AP SRS resource set is deactivated;

[0090] When the SRS resource set is an SP SRS resource set, if the first indication field is a first value, it can be considered to activate the SP SRS resource set, and if it is set to a second value, it can be considered to deactivate the SP SRS resource set.

[0091] Regarding the difference between the aforementioned SP SRS and AP SRS, it can be: SP SRS resource set, the spatial relationship corresponding to the SP SRS is activated through MAC CE, and then the spatial relationship corresponding to the SP SRS resource set will be in an activated state, and the corresponding information will be continuously sent based on the corresponding period; the difference between the AP SRS resource set is that the spatial relationship corresponding to the APSRS resource set is updated through MAC CE indication, but the spatial relationship corresponding to the AP SRS resource set is not activated through MAC CE, but further dynamically scheduled through other information (such as DCI (DownLink Control Information)), and SRS is sent after activation through DCI.

[0092] The MAC CE further includes a second indication field for indicating the cell to which the SRS resource set belongs, and a third indication field for indicating the bandwidth part BWP to which the SRS resource set belongs.

[0093] Combination Figure 4 From the perspective of FIG. 5 , the second indication field may be the “SRS Resource Set's Cell ID” (the cell identifier to which the SRS resource set belongs) in the MAC CE, and the third indication field may be the “SRS Resource Set's BWP ID” (the BWP identifier to which the SRS resource set belongs) in the MAC CE.

[0094] The second indication field, ie, "SRS Resource Set's Cell ID", may be 5 bits in length and may be used to indicate an identifier of a serving cell corresponding to an activated, updated or deactivated SRS resource set.

[0095] In addition, the content contained in the second indication field can be determined in combination with the value of the indication field "C". For example, if the indication field "C" is set to a second value (for example, 0), then the second indication field can also be used to indicate a service cell containing all resources, wherein all resources are indicated by the "Resource Identifier (ID)" indication field.

[0096] The third indication field may be Figure 4 The SRS Resource Set's BWP ID in the , which can be 2 bits long.

[0097] Specifically, the third indication field indicates an uplink (UL) bandwidth part (BWP, BandWidth Part) as a code point of a DCI bandwidth part indicator field specified in TS 38.212 [9], which includes an activated / deactivated SPSRS resource set.

[0098] In addition, if the C field (C indication field) is set to 0, the third indication field is used to indicate the identity of the BWP, which contains all resources indicated by the Resource IDi field.

[0099] The C indication domain (or C field) is 1 bit long. This field indicates whether there is an octet containing the resource serving cell ID field and the resource BWP ID field in the MAC CE. For example, if this field is set to 1, there is an octet containing the resource serving cell ID field and the resource BWP ID field, otherwise it does not exist.

[0100] The MAC CE also includes a fourth indication field for identifying the SRS resource set.

[0101] The fourth indication field may be Figure 4 The length of the SRS Resource Set ID field is 4 bits. The fourth indication field may indicate the identifier of the SRS resource set; the identifier may be the SRS-ResourceSetId identifier specified in TS 38.331[5].

[0102] It should be pointed out that although the fourth indication field does not distinguish between AP SRS and SP SRS, the two can be distinguished by ID. For example, resources 1 to 3 are assigned to an AP SRS resource set, and resources 4-10 are SP SRS resource sets, which are distinguished by different IDs. Then, the fourth indication field can be used to indicate which SRS resource set the MAC CE is targeting, and the corresponding AP or SP SRS resource set can be distinguished based on the ID (or the terminal device can identify it).

[0103] The MAC CE includes M fifth indication fields for indicating the identifiers of the M resources in the SRS resource set; M is an integer greater than or equal to 1.

[0104] For example, the M fifth indication fields can be Figure 4 Resource ID i in the resource, where i is greater than or equal to 0 and less than or equal to M-1.

[0105] Specifically, each fifth indication field, that is, each Resource ID i, may be 7 bits long. This field contains the identifier of the resource used for spatial relationship derivation of SRS resource i. Resource ID0 refers to the first SRS resource in the resource set, resource ID1 refers to the second resource, and so on.

[0106] The MAC CE further includes: M sixth indication fields; each of the M sixth indication fields is used to indicate the type of resources in the corresponding fifth indication field;

[0107] The type of the resource is one of the following: SSB, SRS, CSI-RS.

[0108] The sixth indication field can be Figure 4 In Fi, similarly, i is greater than or equal to 0 and less than or equal to M-1; its length can be 1 bit.

[0109] The sixth indication field may or may not exist, and the method for determining whether it exists may be determined based on the first indication field, that is, A / D. Specifically, the sixth indication field and the fifth indication field exist only when the SRS resource set is activated using MAC CE, that is, when the A / D field is set to 1.

[0110] Each sixth indication field indicates the type of resource of the SRS resource used as the spatial relationship of the SRS resource.

[0111] Among them, F0 refers to the first SRS resource in the resource set, F1 refers to the second resource, and so on.

[0112] When the sixth indication field is set to the first value (for example, 1), it indicates that the NZP CSI-RS resource index is used; when it is set to the second value (for example, 0), it indicates that the SSB index or SRS resource index is used.

[0113] The fifth indication field and the sixth indication field combined, that is, Fi and Resource ID i combined, if Fi is set to 0 and the first bit of Resource ID i is set to 1, then the rest of Resource ID i contains the SSB-Index (specified in TS 38.331[5]). If Fi is set to 0 and the first bit of Resource ID i is set to 0, then the rest of Resource ID i contains the SRS-Resource Id (specified in TS 38.331[5]). This Resource ID i indication field only exists when MAC CE is used to activate the SRS resource set, that is, when the A / D field is set to 1.

[0114] The MAC CE further includes: M seventh indication fields for indicating the identifier of the cell where the SRI corresponding to the SRS resource is located, and M eighth indication fields for indicating the identifier of the BWP where the SRI corresponding to the SRS resource is located.

[0115] Combination Figure 4The seventh indication field may be Resource Serving Cell ID i in MAC CE, and its length is 5 bits. The seventh indication field is used to indicate the serving cell identifier, and the spatial relationship of SRS resource i deduces that the resource is located in the serving cell.

[0116] The eighth indication field is Figure 4 Resource BWP ID i in the indication field is 2 bits long. The indication field indicates that the resource used for spatial relationship derivation of SRS resource i is located on the UL BWP ID indicated by the indication field. The UL BWP is the code point (CodePoint) of the DCI BWP indication area in TS38.212 [9].

[0117] Based on the aforementioned first to eighth indication fields, activation, updating and deactivation of SRI can be achieved.

[0118] Specifically, the network device indicates activation, update or deactivation of the SRS resource set through the first indication field of the MAC CE. In the case of activating or updating the SRS resource set, the corresponding SRS resource set is indicated through the fourth indication field carried in the MAC CE; and then the cell and BWP to which the SRS resource set belongs are indicated through the second indication field and the third indication field. The SRS resource identifier and the SRS resource type are indicated through the fifth indication field and the sixth indication field, and then the identifier of the cell and BWP where the SRI corresponding to the SRS resource is located is indicated through the seventh indication field and the eighth indication field. Correspondingly, the terminal device parses the MAC CE and obtains the indication of activating, updating or deactivating the SRS resource set from the first indication field of the MAC CE; in the case of activating or updating the SRS resource set, the identifier of the SRS resource set is determined based on the fourth indication field, and the cell and BWP to which the SRS resource set belongs are determined based on the second indication field and the third indication field; the M resources corresponding to the indication are determined based on the M fifth indication fields, and each resource type is determined according to the sixth indication field; the cell and BWP where the SRS corresponding to the resource is located are determined according to the seventh indication field and the eighth indication field.

[0119] The first indication field is used to indicate activation, update or deactivation of the SRS resource set, which may be:

[0120] When the SRS resource set is an AP SRS resource set, the first indication field in the MAC CE is set to a first value, indicating updating the AP SRS resource set; if it is set to a second value, it indicates deactivating the AP SRS resource set;

[0121] When the SRS resource set is the SP SRS resource set, the network device sets the first indication field in the MAC CE to the first value, then activates the SP SRS resource set, and sets it to the second value, then deactivates the SP SRS resource set.

[0122] In general, the network device activates or updates the SPS resource set through a MAC CE indication; and then provides the specific cell and BWP corresponding to the SRI through the indication corresponding to each resource, thereby controlling the activation, update or deactivation of the SRI.

[0123] Correspondingly, when the SRS resource set is configured as the AP SRS resource set, if the terminal device receives a MAC CE in which the first indication field indicates a first value, then it is determined to update the AP SRS resource set; otherwise, the AP SRS resource set is deactivated; when the SRS resource set is configured as the SP SRS resource set, if the terminal device receives a MAC CE in which the first indication field indicates a first value, then it is determined to activate the SP SRS resource set; otherwise, the SP SRS resource set is deactivated.

[0124] On the basis of the above, if the spatial relationship corresponding to the SRS is processed based on the above, that is, when the SRI is updated or activated, then the corresponding SRS path loss RS will also be updated accordingly. Figure 4 The indication of the SRS path loss reference signal RS is described as follows:

[0125] The MAC CE also includes: a ninth indication field carrying an SRS path loss reference signal RS.

[0126] like Figure 4 As shown in , the ninth indication field may be the SRS pathloss (path loss) RS field, and the length may be 6 bits.

[0127] It should be noted that the granularity of the SRS path loss RS is an SRS resource set or an SRS resource.

[0128] Among them, when the granularity of the SRS path loss RS is SRS resources, the MAC CE carries M ninth indication fields of the SRS path loss RS corresponding to M SRS resources.

[0129] For example, see Figure 5 , only part of MAC CE is used for illustration, and the rest is the same as Figure 4If there are M ninth indication fields, each ninth indication field is used to indicate a path loss RS corresponding to an SRS resource, and the ninth indication field, that is, SRS pathloss RS, is recorded as SRS pathloss RS 0 to SRS pathloss RS M-1 in the figure.

[0130] It should be pointed out that Figure 5 This is only an example, that is, the ninth indication field is before the sixth indication field "Resource ID0~M-1"; in another case not shown in the figure, each ninth indication field may be before a corresponding sixth indication field, that is, the ninth indication field and the sixth indication field are distributed alternately. Of course, there may be other settings in the MAC CE, which will not be exhaustively listed here.

[0131] On the terminal device side, the method also includes: when the granularity of the SRS path loss RS is the SRS resource set, the terminal device obtains the path loss RS for the SRS resource set from the ninth indication field of the MAC CE; when the granularity of the SRS path loss RS is the SRS resource, the terminal device obtains the SRS path loss RS corresponding to N SRS resources from the M ninth indication fields of the MAC CE respectively.

[0132] On the basis of the above, we will further combine Figure 4 The indication of the PUSCH path loss RS is further described as follows:

[0133] The MAC CE also includes: a tenth indication field for indicating a PUSCH path loss RS.

[0134] The MAC CE carries an eleventh indication field, which is used to indicate whether the MAC CE carries the tenth indication field.

[0135] Combination Figure 4 For example, the eleventh indication field can be the "PL" field in the MAC CE format, with a length of 1 bit. For example, when PL is set to the first value (0), it can be considered that the MAC CE omits the PUSCH pathLossReferenceRS-IF field, that is, it is not necessary to carry the tenth indication field; otherwise, the PUSCH pathLossReferenceRS-ID field should exist in the MAC CE (that is, it is necessary to carry the tenth indication field).

[0136] Furthermore, the method of determining the indication value of the eleventh indication field may include:

[0137] In the case where the usage configured by the SRS is codebook-based or non-codebook-based, the MAC CE carries the tenth indication field.

[0138] Specifically, when the usage configured by the SRS is codebook-based or non-codebook-based, the MAC CE indicates through the eleventh indication field that the tenth indication field is carried in the MAC CE.

[0139] When the granularity of the PUSCH path loss RS is an SRS resource set, the MAC CE carries one tenth indication field;

[0140] When the granularity of the PUSCH path loss RS is SRS resources, the MAC CE carries M tenth indication fields.

[0141] The MAC CE carries M tenth indication fields, which can be as follows: Figure 4 As shown, it contains multiple "PUSCHpathloss RS". The style of carrying one tenth indication field in MAC CE can be seen in Figure 6 Among them, since one PUSCH pathloss RS can be used to correspond to one resource set, only one PUSCH pathloss RS is needed to indicate the pathloss RS of all resources.

[0142] In addition, if Figure 4 As shown, the MAC CE format may also include other indication fields, such as the SUL and R fields shown in the figure. Among them, the SUL field is used to indicate whether the MAC CE is applied to the NUL carrier or the SUL carrier configuration. If this field is set to 1, it means that it is applicable to the SUL carrier configuration, and if it is set to 0, it means that it is applicable to the NUL carrier configuration. R is a reserved bit and is not limited in this embodiment.

[0143] It can be seen that by adopting the above solution, it is possible to indicate through one MAC CE: at least one of the following: activation, update or deactivation of channel sounding reference signal spatial relationship information SRI, update of path loss of channel sounding reference signal SRS, and update of path loss of physical uplink shared channel PUSCH. In this way, it is possible to avoid the problem of not being able to save signaling due to the need to send multiple MAC CEs to indicate the above because each of the above contents involves one MAC CE.

[0144] An embodiment of the present invention provides a network device, such as Figure 7 As shown, including:

[0145] The first communication unit 41 sends a MAC CE to a terminal device;

[0146] The MAC CE is used to indicate at least one of the following:

[0147] Activation, update or deactivation of channel sounding reference signal spatial relationship information (SRI, SRS Spatial Relation Info); the SRI is aperiodic (AP, aperiodic) SRI or semi-static (SP, Semi-Persistent) SRI.

[0148] Update of path loss of channel sounding reference signal SRS;

[0149] Update of physical uplink shared channel PUSCH path loss.

[0150] Accordingly, terminal devices such as Figure 8 As shown, including:

[0151] The second communication unit 51 receives a media access control MAC control element CE sent by a network device;

[0152] The MAC CE is used to indicate at least one of the following:

[0153] Activation, updating or deactivation of channel sounding reference signal spatial relationship information SRI; the SRI is a non-periodic AP SRI or a semi-static SP SRI.

[0154] This embodiment provides the above-mentioned solution and can provide a new MAC CE format. The MAC CE can be used for activation, update or deactivation of AP / SPSRI, and can indicate the pathloss RS ID of the SRS. At the same time, if the usage configured by the SRS is "codebook-based or non-codebookbased", the MAC CE can also simultaneously indicate the pathloss RS ID of the PUSCH.

[0155] Combine the following Figure 4 , the format of the MAC CE provided in this embodiment is described in detail.

[0156] First, the relevant indication fields for activation, update or deactivation of AP / SP SRI are explained:

[0157] The MAC CE includes a first indication field for indicating activation, update or deactivation of an SRS resource set;

[0158] The SRS resource set is an AP SRS resource set or an SP SRS resource set.

[0159] The MAC CE further includes a second indication field for indicating the cell to which the SRS resource set belongs, and a third indication field for indicating the bandwidth part BWP to which the SRS resource set belongs.

[0160] The MAC CE also includes a fourth indication field for identifying the SRS resource set.

[0161] The MAC CE includes M fifth indication fields for indicating the identifiers of the M resources in the SRS resource set; M is an integer greater than or equal to 1.

[0162] The MAC CE further includes: M sixth indication fields; each of the M sixth indication fields is used to indicate the type of resources in the corresponding fifth indication field;

[0163] The type of the resource is one of the following: SSB, SRS, CSI-RS.

[0164] The MAC CE further includes: M seventh indication fields for indicating the identifier of the cell where the SRI corresponding to the SRS resource is located, and M eighth indication fields for indicating the identifier of the BWP where the SRI corresponding to the SRS resource is located.

[0165] Based on the aforementioned first to eighth indication fields, activation, updating and deactivation of SRI can be achieved.

[0166] Specifically, the network device indicates activation, updating or deactivation of the SRS resource set through the first indication field of the MAC CE. In the case of activating or updating the SRS resource set, the corresponding SRS resource set is indicated through the fourth indication field carried in the MAC CE; and then the cell and BWP to which the SRS resource set belongs are indicated through the second indication field and the third indication field. The SRS resource identifier and the SRS resource type are indicated through the fifth indication field and the sixth indication field, and then the identifier of the cell and BWP where the SRI corresponding to the SRS resource is located is indicated through the seventh indication field and the eighth indication field. Correspondingly, the terminal device also includes: a second processing unit 52, parsing the MAC CE, and obtaining an indication of activating, updating or deactivating the SRS resource set from the first indication field of the MAC CE; in the case of activating or updating the SRS resource set, determining the identifier of the SRS resource set based on the fourth indication field, and determining the cell and BWP to which the SRS resource set belongs based on the second indication field and the third indication field; determining M resources corresponding to the indication based on M fifth indication fields, and determining each resource type according to the sixth indication field; determining the cell and BWP where the SRS corresponding to the resource is located according to the seventh indication field and the eighth indication field.

[0167] On the basis of the above, if the spatial relationship corresponding to the SRS is processed based on the above, that is, when the SRI is updated or activated, then the corresponding SRS path loss RS will also be updated accordingly. Figure 4 The indication of the SRS path loss reference signal RS is described as follows:

[0168] The MAC CE also includes: a ninth indication field carrying an SRS path loss reference signal RS.

[0169] like Figure 4 As shown in , the ninth indication field may be the SRS pathloss (path loss) RS field, and the length may be 6 bits.

[0170] It should be noted that the granularity of the SRS path loss RS is an SRS resource set or an SRS resource.

[0171] On the terminal device side, the second processing unit 52, when the granularity of the SRS path loss RS is the SRS resource set, obtains the path loss RS for the SRS resource set from the ninth indication field of the MAC CE; when the granularity of the SRS path loss RS is the SRS resource, obtains the SRS path loss RS corresponding to N SRS resources from the M ninth indication fields of the MAC CE respectively.

[0172] On the basis of the above, we will further combine Figure 4 The indication of the PUSCH path loss RS is further described as follows:

[0173] The MAC CE also includes: a tenth indication field for indicating a PUSCH path loss RS.

[0174] The MAC CE carries an eleventh indication field, which is used to indicate whether the MAC CE carries the tenth indication field.

[0175] Combination Figure 4 For example, the eleventh indication field can be the "PL" field in the MAC CE format, with a length of 1 bit. For example, when PL is set to the first value (0), it can be considered that the MAC CE omits the PUSCH pathLossReferenceRS-IF field, that is, it is not necessary to carry the tenth indication field; otherwise, the PUSCH pathLossReferenceRS-ID field should exist in the MAC CE (that is, it is necessary to carry the tenth indication field).

[0176] Further, the method for determining the indication value of the eleventh indication field, the network device also includes: a first processing unit 42, when the usage configured by the SRS is codebook-based or non-codebook-based, the MAC CE carries the tenth indication field.

[0177] When the granularity of the PUSCH path loss RS is an SRS resource set, the MAC CE carries one tenth indication field;

[0178] When the granularity of the PUSCH path loss RS is SRS resources, the MAC CE carries M tenth indication fields.

[0179] It can be seen that by adopting the above solution, it is possible to indicate through one MAC CE: at least one of the following: activation, update or deactivation of channel sounding reference signal spatial relationship information SRI, update of path loss of channel sounding reference signal SRS, and update of path loss of physical uplink shared channel PUSCH. In this way, it is possible to avoid the problem of not being able to save signaling due to the need to send multiple MAC CEs to indicate the above because each of the above contents involves one MAC CE.

[0180] Fig. 9 It is a schematic structural diagram of a communication device 900 provided in an embodiment of the present invention. The communication device in this embodiment may specifically be one of the terminal device, access network node, and core network device in the aforementioned embodiments. Fig. 9 The communication device 900 shown includes a processor 910. The processor 910 can call and run a computer program from a memory to implement the method in the embodiment of the present invention.

[0181] Optionally, Fig. 9 As shown, the communication device 900 may further include a memory 920. The processor 910 may call and run a computer program from the memory 920 to implement the method in the embodiment of the present invention.

[0182] The memory 920 may be a separate device independent of the processor 910 , or may be integrated into the processor 910 .

[0183] Alternatively, if Fig. 9 As shown, the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

[0184] The transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include an antenna, and the number of antennas may be one or more.

[0185] Optionally, the communication device 900 may specifically be a network device according to an embodiment of the present invention, and the communication device 900 may implement corresponding processes implemented by the network device in various methods according to the embodiment of the present invention, which will not be described in detail for the sake of brevity.

[0186] Optionally, the communication device 900 may specifically be a terminal device or a network device of an embodiment of the present invention, and the communication device 900 may implement the corresponding processes implemented by the mobile terminal / terminal device in each method of the embodiment of the present invention, which will not be described in detail here for the sake of brevity.

[0187] Fig.10 is a schematic structural diagram of a chip according to an embodiment of the present invention. Fig.10 The chip 1000 shown includes a processor 1010, which can call and run a computer program from a memory to implement the method in the embodiment of the present invention.

[0188] Alternatively, if Fig.10 As shown, the chip 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 invention.

[0189] The memory 1020 may be a separate device independent of the processor 1010 , or may be integrated into the processor 1010 .

[0190] Optionally, the chip 1000 may further include an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0191] Optionally, the chip 1000 may further include an output interface 1040. The processor 1010 may control the output interface 1040 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0192] Optionally, the chip can be applied to one of the terminal devices, access network nodes, and core network devices in the embodiments of the present invention, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present invention. For the sake of brevity, they will not be repeated here.

[0193] It should be understood that the chip mentioned in the embodiment of the present invention can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0194] It should be understood that the processor of the embodiment of the present invention may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit in the processor or the instruction in the form of software. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor can be combined to perform. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0195] It can be understood that the memory in the embodiment of the present invention can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0196] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiment of the present invention 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 embodiment of the present invention is intended to include but not limited to these and any other suitable types of memory.

[0197] Fig.111 is a schematic block diagram of a communication system 1100 provided in an embodiment of the present application. Fig.11 As shown, the communication system 1100 includes a terminal device 1110 and a network device 1120 .

[0198] The terminal device 1110 can be used to implement the corresponding functions implemented by the UE in the above method, and the network device 1120 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they are not described here. The network device can be one of the aforementioned access network nodes and core network devices.

[0199] An embodiment of the present invention further provides a computer-readable storage medium for storing a computer program.

[0200] Optionally, the computer-readable storage medium can be applied to the network device or terminal device in the embodiments of the present invention, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present invention. For the sake of brevity, they are not repeated here.

[0201] An embodiment of the present invention further provides a computer program product, including computer program instructions.

[0202] Optionally, the computer program product can be applied to the network device or terminal device in the embodiments of the present invention, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present invention. For the sake of brevity, they are not repeated here.

[0203] An embodiment of the present invention also provides a computer program.

[0204] Optionally, the computer program may be applied to a network device or a terminal device in an embodiment of the present invention. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in each method of the embodiment of the present invention. For the sake of brevity, they are not described here.

[0205] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0206] 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.

[0207] In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0208] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0209] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0210] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0211] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An information indication method, include: The network device sends a media access control MAC control element CE to the terminal device; The one MAC CE is used to indicate at least one of the following: Activation, updating or deactivation of channel sounding reference signal spatial relationship information SRI; the SRI is aperiodic APSRI or semi-static SP SRI; Update of path loss of channel sounding reference signal SRS; Update of physical uplink shared channel PUSCH path loss; The method further includes: when the usage configured by the SRS is codebook-based or non-codebook-based, the one MAC CE carries a tenth indication field for indicating a PUSCH path loss RS.

2. The method according to claim 1, in, The one MAC CE includes a first indication field for indicating activation, update or deactivation of an SRS resource set; The SRS resource set is an AP SRS resource set or an SP SRS resource set.

3. The method according to claim 1, in, The one MAC CE includes a second indication field for indicating the cell to which the SRS resource set belongs, and a third indication field for indicating the bandwidth part BWP to which the SRS resource set belongs.

4. The method according to claim 1, in, The one MAC CE also includes a fourth indication field for identifying the SRS resource set.

5. The method according to claim 1, in, The one MAC CE includes M fifth indication fields for indicating the identifiers of the M resources in the SRS resource set; M is an integer greater than or equal to 1.

6. The method according to claim 5, in, The one MAC CE further includes: M sixth indication fields; each of the M sixth indication fields is used to indicate the type of resources in the corresponding fifth indication field; The resource type is one of the following: SSB, SRS, CSI-RS; M is an integer greater than or equal to 1.

7. The method according to claim 1, in, The one MAC CE also includes: M seventh indication fields for indicating the identifier of the cell where the SRI corresponding to the SRS resource is located, and M eighth indication fields for indicating the identifier of the BWP where the SRI corresponding to the SRS resource is located; M is an integer greater than or equal to 1.

8. The method according to any one of claims 1 to 7, in, The one MAC CE also includes: a ninth indication field carrying an SRS path loss reference signal RS.

9. The method according to claim 8, in, The granularity of the SRS path loss RS is an SRS resource set or an SRS resource.

10. The method according to claim 9, in, When the granularity of the SRS path loss RS is SRS resources, the one MAC CE carries M ninth indication fields of the SRS path loss RS corresponding to M SRS resources; M is an integer greater than or equal to 1.

11. The method according to claim 1, in, The one MAC CE carries an eleventh indication field, which is used to indicate whether the tenth indication field is carried in the MAC CE.

12. The method according to claim 1, in, The granularity of the PUSCH path loss RS is an SRS resource set or an SRS resource.

13. The method according to claim 12, in, When the granularity of the PUSCH path loss RS is an SRS resource set, the one MAC CE carries one tenth indication field; When the granularity of the PUSCH path loss RS is SRS resources, the one MAC CE carries M tenth indication fields.

14. A method for obtaining information, include: The terminal device receives a media access control MAC control element CE sent by the network device; The one MAC CE is used to indicate at least one of the following: Activation, updating or deactivation of channel sounding reference signal spatial relationship information SRI; the SRI is aperiodic APSRI or semi-static SP SRI; Update of path loss of channel sounding reference signal SRS; Update of physical uplink shared channel PUSCH path loss; The method further comprises: In the case where the usage configured by the SRS is codebook-based or non-codebook-based, the one MAC CE carries a tenth indication field for indicating a PUSCH path loss RS.

15. The method according to claim 14, in, The one MAC CE includes a first indication field for indicating activation, update or deactivation of an SRS resource set; The SRS resource set is an AP SRS resource set or an SP SRS resource set.

16. The method according to claim 14, in, The one MAC CE includes a second indication field for indicating the cell to which the SRS resource set belongs, and a third indication field for indicating the bandwidth part BWP to which the SRS resource set belongs.

17. The method according to claim 14, in, The one MAC CE includes a fourth indication field for identifying the SRS resource set.

18. The method according to claim 14, in, The one MAC CE includes M fifth indication fields for indicating the identifiers of the M resources in the SRS resource set; M is an integer greater than or equal to 1.

19. The method according to claim 18, in, The one MAC CE further includes: M sixth indication fields; each of the M sixth indication fields is used to indicate the type of resources in the corresponding fifth indication field; The resource type is one of the following: SSB, SRS, CSI-RS; M is an integer greater than or equal to 1.

20. The method according to claim 14, in, The one MAC CE also includes: M seventh indication fields for indicating the identifier of the cell where the SRI corresponding to the SRS resource is located, and M eighth indication fields for indicating the identifier of the BWP where the SRI corresponding to the SRS resource is located; M is an integer greater than or equal to 1.

21. The method according to any one of claims 14 to 20, in, The method further comprises: The terminal device parses the one MAC CE, obtains an indication of activating, updating or deactivating an SRS resource set from the first indication field of the one MAC CE; in the case of activating or updating the SRS resource set, determines an identifier of the SRS resource set based on the fourth indication field, and determines the cell and BWP to which the SRS resource set belongs based on the second indication field and the third indication field; determines M resources corresponding to the indication based on M fifth indication fields, and determines each resource type according to the sixth indication field; determines the cell and BWP where the SRS corresponding to the resource is located according to the seventh indication field and the eighth indication field.

22. The method according to any one of claims 14 to 20, in, The one MAC CE also includes: a ninth indication field carrying an SRS path loss reference signal RS.

23. The method according to claim 22, in, The granularity of the SRS path loss RS is an SRS resource set or an SRS resource.

24. The method according to claim 23, in, When the granularity of the SRS path loss RS is SRS resources, the one MAC CE carries M ninth indication fields of the SRS path loss RS corresponding to M SRS resources.

25. The method according to claim 23 or 24, in, The method further comprises: In a case where the granularity of the SRS path loss RS is an SRS resource set, the terminal device obtains the path loss RS for the SRS resource set from the ninth indication field of the one MAC CE; In the case where the granularity of the SRS path loss RS is the SRS resource, the terminal device obtains the SRS path loss RS corresponding to the M SRS resources from the M ninth indication fields of the one MAC CE respectively.

26. The method according to claim 14, in, The one MAC CE carries an eleventh indication field, which is used to indicate whether the tenth indication field is carried in the MAC CE.

27. The method according to claim 26, in, The granularity of the PUSCH path loss RS is an SRS resource set or an SRS resource.

28. The method according to claim 27, in, When the granularity of the PUSCH path loss RS is an SRS resource set, the one MAC CE carries one tenth indication field; When the granularity of the PUSCH path loss RS is SRS resources, the one MAC CE carries M tenth indication fields.

29. The method according to any one of claims 25 to 28, in, The method further comprises: The terminal device obtains a PUSCH path loss RS based on the tenth indication field of the one MAC CE; or, When the granularity of the PUSCH path loss RS is SRS resources, the terminal device obtains the PUSCH path loss RS corresponding to the SRS resources respectively based on the M tenth indication fields of the one MAC CE.

30. A network device, include: The first communication unit sends a media access control MAC control element CE to the terminal device; The one MAC CE is used to indicate at least one of the following: Activation, updating or deactivation of channel sounding reference signal spatial relationship information SRI; the SRI is aperiodic APSRI or semi-static SP SRI; Update of path loss of channel sounding reference signal SRS; Update of physical uplink shared channel PUSCH path loss; In the case where the usage configured by the SRS is codebook-based or non-codebook-based, the one MAC CE carries a tenth indication field for indicating a PUSCH path loss RS.

31. The network device according to claim 30, in, The one MAC CE includes a first indication field for indicating activation, update or deactivation of an SRS resource set; The SRS resource set is an AP SRS resource set or an SP SRS resource set.

32. The network device according to claim 30, in, The one MAC CE includes a second indication field for indicating the cell to which the SRS resource set belongs, and a third indication field for indicating the bandwidth part BWP to which the SRS resource set belongs.

33. The network device according to claim 30, in, The one MAC CE also includes a fourth indication field for identifying the SRS resource set.

34. The network device according to claim 30, in, The one MAC CE includes M fifth indication fields for indicating the identifiers of the M resources in the SRS resource set; M is an integer greater than or equal to 1.

35. The network device according to claim 34, in, The one MAC CE further includes: M sixth indication fields; each of the M sixth indication fields is used to indicate the type of resources in the corresponding fifth indication field; The resource type is one of the following: SSB, SRS, CSI-RS; M is an integer greater than or equal to 1.

36. The network device according to claim 30, in, The one MAC CE also includes: M seventh indication fields for indicating the identifier of the cell where the SRI corresponding to the SRS resource is located, and M eighth indication fields for indicating the identifier of the BWP where the SRI corresponding to the SRS resource is located; M is an integer greater than or equal to 1.

37. The network device according to any one of claims 30 to 36, in, The one MAC CE also includes: a ninth indication field carrying an SRS path loss reference signal RS.

38. The network device according to claim 37, in, The granularity of the SRS path loss RS is an SRS resource set or an SRS resource.

39. The network device according to claim 38, in, When the granularity of the SRS path loss RS is SRS resources, the one MAC CE carries M ninth indication fields of the SRS path loss RS corresponding to M SRS resources.

40. The network device according to claim 30, in, The one MAC CE carries an eleventh indication field, which is used to indicate whether the one MAC CE carries the tenth indication field.

41. The network device according to claim 30, in, The granularity of the PUSCH path loss RS is an SRS resource set or an SRS resource.

42. The network device according to claim 41, in, When the granularity of the PUSCH path loss RS is an SRS resource set, the one MAC CE carries one tenth indication field; When the granularity of the PUSCH path loss RS is SRS resources, the one MAC CE carries M tenth indication fields.

43. A terminal device, include: The second communication unit receives a media access control MAC control element CE sent by the network device; The one MAC CE is used to indicate at least one of the following: Activation, updating or deactivation of channel sounding reference signal spatial relationship information SRI; the SRI is aperiodic APSRI or semi-static SP SRI; Update of path loss of channel sounding reference signal SRS; Update of physical uplink shared channel PUSCH path loss; In the case where the usage configured by the SRS is codebook-based or non-codebook-based, the one MAC CE carries a tenth indication field for indicating a PUSCH path loss RS.

44. The terminal device according to claim 43, in, The one MAC CE includes a first indication field for indicating activation, update or deactivation of an SRS resource set; The SRS resource set is an AP SRS resource set or an SP SRS resource set.

45. The terminal device according to claim 43, in, The one MAC CE includes a second indication field for indicating the cell to which the SRS resource set belongs, and a third indication field for indicating the bandwidth part BWP to which the SRS resource set belongs.

46. ​​The terminal device according to claim 43, in, The one MAC CE includes a fourth indication field for identifying the SRS resource set.

47. The terminal device according to claim 43, in, The one MAC CE includes M fifth indication fields for indicating the identifiers of the M resources in the SRS resource set; M is an integer greater than or equal to 1.

48. The terminal device according to claim 47, in, The one MAC CE further includes: M sixth indication fields; each of the M sixth indication fields is used to indicate the type of resources in the corresponding fifth indication field; The resource type is one of the following: SSB, SRS, CSI-RS.

49. The terminal device according to claim 43, in, The one MAC CE further includes: M seventh indication fields for indicating the identifier of the cell where the SRI corresponding to the SRS resource is located, and M eighth indication fields for indicating the identifier of the BWP where the SRI corresponding to the SRS resource is located.

50. The terminal device according to any one of claims 43 to 49, in, The terminal device further includes: The second processing unit parses the one MAC CE, obtains an indication of activating, updating or deactivating an SRS resource set from the first indication field of the one MAC CE; in the case of activating or updating the SRS resource set, determines an identifier of the SRS resource set based on the fourth indication field, and determines a cell and a BWP to which the SRS resource set belongs based on the second indication field and the third indication field; determines M resources corresponding to the indication based on the M fifth indication fields, and determines each resource type according to the sixth indication field; determines a cell and a BWP where the SRS corresponding to the resource is located according to the seventh indication field and the eighth indication field.

51. The terminal device according to any one of claims 43 to 49, in, The one MAC CE also includes: a ninth indication field carrying an SRS path loss reference signal RS.

52. The terminal device according to claim 51, in, The granularity of the SRS path loss RS is an SRS resource set or an SRS resource.

53. The terminal device according to claim 52, in, When the granularity of the SRS path loss RS is SRS resources, the one MAC CE carries M ninth indication fields of the SRS path loss RS corresponding to M SRS resources.

54. The terminal device according to claim 52 or 53, in, The terminal device further includes: The second processing unit acquires the path loss RS for the SRS resource set from the ninth indication field of the one MAC CE when the granularity of the SRS path loss RS is the SRS resource set; When the granularity of the SRS path loss RS is the SRS resource, the SRS path loss RS corresponding to the M SRS resources are respectively obtained from the M ninth indication fields of a MAC CE.

55. The terminal device according to claim 43, in, The one MAC CE carries an eleventh indication field, which is used to indicate whether the tenth indication field is carried in the MAC CE.

56. The terminal device according to claim 55, in, The granularity of the PUSCH path loss RS is an SRS resource set or an SRS resource.

57. The terminal device according to claim 56, in, When the granularity of the PUSCH path loss RS is an SRS resource set, the one MAC CE carries one tenth indication field; When the granularity of the PUSCH path loss RS is SRS resources, the one MAC CE carries M tenth indication fields.

58. The terminal device according to any one of claims 55 to 57, in, The terminal device further includes: The second processing unit acquires a PUSCH path loss RS based on the tenth indication field of the one MAC CE; or, When the granularity of the PUSCH path loss RS is SRS resources, based on the M tenth indication fields of the one MAC CE, the PUSCH path loss RS corresponding to the SRS resources are respectively obtained.

59. A network device, include: a processor and a memory for storing a computer program capable of being executed on the processor, 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 steps of the method as described in any one of claims 1 to 13.

60. A terminal device, include: a processor and a memory for storing a computer program capable of being executed on the processor, 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 steps of the method as described in any one of claims 14-29.

61. A chip, include: 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 13.

62. A chip, include: 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 14 to 29.

63. A computer-readable storage medium for storing a computer program, wherein the computer program enables a computer to execute the steps of the method according to any one of claims 1 to 29.

64. A computer program product comprising computer program instructions, the computer program instructions causing a computer to execute the method according to any one of claims 1 to 29.

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