Information processing method and apparatus

Abstract

Disclosed in embodiments of the present disclosure are an information processing method and apparatus. The method comprises: a first network element sends first information to a second network element, wherein the first information comprises differentiated services code point (DSCP) marking indication information, and the DSCP marking indication information indicates that protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics are / is used for performing DSCP marking on an external Internet protocol (IP) header of a downlink packet of the PDU set. By implementing the embodiments of the present disclosure, the resource scheduling and configuration of a transmission layer can be optimized, thereby more effectively guaranteeing end-to-end QoS requirements, better adapting resource requirements and allocation, and coordinating end-to-end QoS resources.

Description

Information processing method and device thereof Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to an information processing method and device thereof. Background Art

[0002] Mobile media services, cloud AR (Augmented Reality) / VR (Virtual Reality) and other extended reality (XR) services, cloud gaming, and video-based remote control of machines and drones are expected to contribute increasingly high traffic volumes to 5G networks. Multimodal data describes the input of a single service / application from the same device or different devices (including sensors), which may be output to one or more destination devices. The data streams within multimodal data often have some, or even strong, correlation, such as synchronization between audio and video streams, or between touch and vision. These media services share common characteristics within their data streams, between data streams, and in terms of the network transmission requirements. Effectively identifying and leveraging these characteristics will facilitate network and service transmission and control, as well as enhance service assurance and user experience.

[0003] Extended Reality Media (XRM) and interactive media services require the 5GS system to comprehensively consider the QoS (Quality of Service) characteristics of the relevant data flows. For example, multiple XRM data flows involving a terminal, and XRM data flows across multiple terminals, must ensure consistent QoS authorization and execution.

[0004] In related technologies, the 5G system (also known as 5GS) supports enhanced application function (AF) processing of XRM service data streams at the per-PDU granularity. This supports AF for enhanced QoS awareness and assurance of XRM service data streams, as well as enhanced user Quality of Experience (QoE). However, effective means for optimizing resources at the 5GS transport layer for XRM services are currently lacking.

[0005] Summary of the Invention

[0006] The embodiments of the present disclosure provide an information processing method and an apparatus thereof.

[0007] According to a first aspect of an embodiment of the present disclosure, an information processing method is provided. The method is performed by a first network element, and the method includes:

[0008] Sending first information to the second network element; wherein the first information includes differentiated services code point (DSCP) marking indication information, and the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0009] According to a second aspect of an embodiment of the present disclosure, an information processing method is provided. The method is performed by a second network element, and the method includes:

[0010] Obtain first information sent by a first network element; wherein the first information includes differentiated services code point (DSCP) marking indication information, and the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0011] According to a third aspect of an embodiment of the present disclosure, an information processing method is provided. The method is performed by a third network element, and the method includes:

[0012] Receive policy and charging control (PCC) rules;

[0013] Determining, based on the PCC rule, differentiated services code point (DSCP) marking indication information; the DSCP marking indication information indicating protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set;

[0014] Send the DSCP marking indication information to the fourth network element and / or access network equipment.

[0015] According to a fourth aspect of an embodiment of the present disclosure, an information processing method is provided. The method is performed by a fourth network element, and the method includes:

[0016] Differentiated Services Code Point (DSCP) marking indication information is obtained, where the DSCP marking indication information indicates protocol data unit (PDU) set information and / or a PDU set quality of service (QoS) characteristic for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0017] According to a fifth aspect of an embodiment of the present disclosure, an information processing method is provided. The method is performed by an access network device, and the method includes:

[0018] Differentiated Services Code Point (DSCP) marking indication information is obtained, where the DSCP marking indication information indicates protocol data unit (PDU) set information and / or a PDU set quality of service (QoS) characteristic for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0019] According to a sixth aspect of the embodiments of the present disclosure, an information processing method is proposed, including:

[0020] The first network element sends first information to the second network element; wherein the first information includes Differentiated Services Code Point (DSCP) marking indication information, and the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set;

[0021] The second network element obtains the first information sent by the first network element;

[0022] The second network element generates a policy and charging control (PCC) rule based on the first information;

[0023] The second network element sends the PCC rule to a third network element;

[0024] The third network element determines the DSCP marking indication information based on the PCC rule;

[0025] The third network element sends the DSCP marking indication information to the fourth network element and / or the access network device;

[0026] The fourth network element obtains the DSCP marking indication information sent by the third network element.

[0027] According to a seventh aspect of the embodiments of the present disclosure, an information processing method is proposed, including:

[0028] The first network element sends first information to the second network element; wherein the first information includes Differentiated Services Code Point (DSCP) marking indication information, and the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set;

[0029] The second network element obtains the first information sent by the first network element;

[0030] The second network element generates a policy and charging control (PCC) rule based on the first information;

[0031] The second network element sends the PCC rule to a third network element;

[0032] The third network element determines the DSCP marking indication information based on the PCC rule;

[0033] The third network element sends the DSCP marking indication information to the fourth network element and the access network device;

[0034] The fourth network element obtains the DSCP marking indication information sent by the third network element;

[0035] The access network device obtains the DSCP marking indication information sent by the third network element.

[0036] According to an eighth aspect of an embodiment of the present disclosure, an information processing method is provided. The method is performed by a core network element, and the method includes:

[0037] Obtaining first information sent by a first network element; wherein the first information includes differentiated services code point (DSCP) marking indication information, wherein the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set;

[0038] generating a policy and charging control (PCC) rule based on the first information;

[0039] Determining the DSCP marking indication information based on the PCC rule;

[0040] Send the DSCP marking indication information to the access network device.

[0041] According to a ninth aspect of an embodiment of the present disclosure, a first network element is provided, including:

[0042] a transceiver module, configured to send first information to a second network element; wherein the first information includes Differentiated Services Code Point (DSCP) marking indication information, wherein the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0043] According to a tenth aspect of an embodiment of the present disclosure, a second network element is provided, including:

[0044] a transceiver module, configured to obtain first information sent by a first network element; wherein the first information includes Differentiated Services Code Point (DSCP) marking indication information, wherein the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0045] According to an eleventh aspect of the embodiments of the present disclosure, a third network element is provided, including:

[0046] Transceiver module, used to receive policy and charging control PCC rules;

[0047] a processing module, configured to determine, based on the PCC rule, differentiated services code point (DSCP) marking indication information; the DSCP marking indication information indicating protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set;

[0048] The transceiver module is further configured to send the DSCP marking indication information to a fourth network element and / or access network device.

[0049] According to a twelfth aspect of an embodiment of the present disclosure, a fourth network element is provided, including:

[0050] The transceiver module is configured to obtain Differentiated Services Code Point (DSCP) marking indication information, where the DSCP marking indication information indicates Protocol Data Unit (PDU) set information and / or PDU set Quality of Service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0051] According to a thirteenth aspect of an embodiment of the present disclosure, an access network device is provided, including:

[0052] The transceiver module is configured to obtain Differentiated Services Code Point (DSCP) marking indication information, where the DSCP marking indication information indicates Protocol Data Unit (PDU) set information and / or PDU set Quality of Service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0053] According to a fourteenth aspect of an embodiment of the present disclosure, a communication system is provided, including:

[0054] A core network device, configured to perform the information processing method described in any one of the first, second, third, fourth, sixth, and eighth aspects;

[0055] The access network device is configured to execute the information processing method described in the fifth aspect above.

[0056] According to a fifteenth aspect of an embodiment of the present disclosure, a communication device is provided, including: one or more processors;

[0057] The processor is used to call instructions to enable the communication device to execute the optional implementation methods of the aforementioned first aspect, second aspect, third aspect, fourth aspect, fifth aspect, sixth aspect, and eighth aspect.

[0058] According to the sixteenth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the optional implementation methods of the aforementioned first aspect, second aspect, third aspect, fourth aspect, fifth aspect, sixth aspect, and eighth aspect.

[0059] According to the technical solution disclosed in the present invention, DSCP marking indication information is provided to the network side through the first network element to indicate that the PDU set information and / or the PDU set QoS characteristics can be used to perform DSCP marking on the external IP header of the downlink packet of the PDU set. This allows the communication system (such as 5GS) to consider the PDU set information and / or the PDU set QoS characteristics to optimize the resource scheduling and configuration of the network transport layer of the XRM service, thereby more effectively guaranteeing end-to-end QoS requirements, better adapting to resource requirements and allocation, and coordinating end-to-end QoS resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0061] FIG1A is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0062] FIG1B is a schematic diagram of the architecture of a 5G system provided by an embodiment of the present disclosure;

[0063] FIG2 is an interactive schematic diagram illustrating an information processing method according to an embodiment of the present disclosure;

[0064] FIG3A is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0065] FIG3B is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0066] FIG4A is a flow chart illustrating an information processing method according to an embodiment of the present disclosure;

[0067] FIG4B is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0068] FIG5A is a flow chart illustrating an information processing method according to an embodiment of the present disclosure;

[0069] FIG5B is a flow chart illustrating an information processing method according to an embodiment of the present disclosure;

[0070] FIG6A is a flow chart illustrating an information processing method according to an embodiment of the present disclosure;

[0071] FIG6B is a flow chart illustrating an information processing method according to an embodiment of the present disclosure;

[0072] FIG7A is a flow chart illustrating an information processing method according to an embodiment of the present disclosure;

[0073] FIG7B is a flow chart illustrating an information processing method according to an embodiment of the present disclosure;

[0074] FIG8A is an interactive diagram of the information processing method proposed in an embodiment of the present disclosure;

[0075] FIG8B is an interactive diagram of the information processing method proposed in an embodiment of the present disclosure;

[0076] FIG9A is a schematic structural diagram of a first network element proposed in an embodiment of the present disclosure;

[0077] FIG10A is a schematic structural diagram of a communication device 10100 proposed in an embodiment of the present disclosure;

[0078] FIG10B is a schematic structural diagram of the chip 10200 proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0079] The embodiments of the present disclosure provide an information processing method and an apparatus thereof.

[0080] In a first aspect, an embodiment of the present disclosure provides an information processing method, which is performed by a first network element and includes:

[0081] Sending first information to the second network element; wherein the first information includes differentiated services code point (DSCP) marking indication information, and the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0082] In the above embodiment, DSCP marking indication information is provided to the second network element by the first network element to indicate that the PDU set information and / or the PDU set QoS characteristics can be used to perform DSCP marking on the outer IP header of the downlink packet of the PDU set. This allows the communication system (such as 5GS) to consider the PDU set information and / or the PDU set QoS characteristics to optimize the resource scheduling and configuration of the network transport layer of the XRM service, thereby more effectively guaranteeing end-to-end QoS requirements, better adapting to resource requirements and allocation, and coordinating end-to-end QoS resources.

[0083] In combination with some embodiments of the first aspect, in some embodiments, the DSCP marking indication information is used for policy and charging control (PCC) decision.

[0084] With reference to some embodiments of the first aspect, in some embodiments, sending the first information to the second network element includes:

[0085] Sending the first information to the second network element based on an application function AF session resource creation request message; or,

[0086] Based on the AF session resource update request message, the first information is sent to the second network element.

[0087] In combination with some embodiments of the first aspect, in some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, which is used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0088] In combination with some embodiments of the first aspect, in some embodiments, the PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU set comprehensive processing information.

[0089] With reference to some embodiments of the first aspect, in some embodiments, sending the first information to the second network element includes:

[0090] The first network element sends the first information to the second network element via a network open function NEF; or

[0091] The first network element sends the first information to the second network element via a time-sensitive communication time synchronization function TSCTSF.

[0092] In combination with some embodiments of the first aspect, in some embodiments, the first information also includes at least one of the following: extended reality media XRM service information; identification information of the XRM service data flow or data flow group; terminal address and / or terminal identification information; the first network element application identification information; description information of the XRM service data flow; data network name DNN; single network slice selection auxiliary information S-NSSAI; QoS parameters of the XRM service data flow.

[0093] In a second aspect, an embodiment of the present disclosure provides an information processing method, which is performed by a second network element and includes:

[0094] Obtain first information sent by a first network element; wherein the first information includes differentiated services code point (DSCP) marking indication information, and the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0095] In the above embodiment, the first network element provides DSCP marking indication information to the second network element to indicate that the PDU set information and / or the PDU set QoS characteristics can be used to perform DSCP marking on the outer IP header of the downlink packet of the PDU set. This allows the second network element to consider the PDU set information and / or the PDU set QoS characteristics to perform corresponding policy control, and can better adapt to resource requirements and allocation, so that the network side supports optimization of resource scheduling and configuration of the network transport layer of the XRM service based on the PDU set information and / or the PDU set QoS characteristics, thereby more effectively ensuring end-to-end QoS requirements, better adapting to resource requirements and allocation, and coordinating end-to-end QoS resources.

[0096] In conjunction with some embodiments of the second aspect, in some embodiments, obtaining the first information sent by the first network element includes any one of the following:

[0097] The second network element obtains the first information sent by the first network element from a network open function NEF;

[0098] The second network element obtains the first information sent by the first network element from a time-sensitive communication time synchronization function TSCTSF.

[0099] In combination with some embodiments of the second aspect, in some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, which is used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0100] In combination with some embodiments of the second aspect, in some embodiments, the PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU set comprehensive processing information.

[0101] In combination with some embodiments of the second aspect, in some embodiments, the first information also includes at least one of the following: extended reality media XRM service information; identification information of the XRM service data flow or data flow group; terminal address and / or terminal identification information; the first network element application identification information; description information of the XRM service data flow; data network name DNN; single network slice selection auxiliary information S-NSSAI; QoS parameters of the XRM service data flow.

[0102] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0103] generating a policy and charging control (PCC) rule based on the first information;

[0104] The PCC rule is sent to the third network element.

[0105] In conjunction with some embodiments of the second aspect, in some embodiments, generating a policy and charging control (PCC) rule based on the first information includes:

[0106] A PCC rule is generated based on the DSCP marking indication information.

[0107] In combination with some embodiments of the second aspect, in some embodiments, the PCC rule includes the DSCP marking indication information.

[0108] In a third aspect, an embodiment of the present disclosure provides an information processing method, which is executed by a third network element and includes:

[0109] Receive policy and charging control (PCC) rules;

[0110] Determining, based on the PCC rule, differentiated services code point (DSCP) marking indication information; the DSCP marking indication information indicating protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set;

[0111] Send the DSCP marking indication information to the fourth network element and / or access network equipment.

[0112] In the above embodiment, DSCP marking indication information can be provided to the network side to indicate that the PDU set information and / or the PDU set QoS characteristics can be used to perform DSCP marking on the outer IP header of the downlink packet of the PDU set. This can enable the network side to support optimization of resource scheduling and configuration of the network transport layer of the XRM service based on the PDU set information and / or the PDU set QoS characteristics, thereby more effectively ensuring end-to-end QoS requirements, better adapting to resource requirements and allocation, and coordinating end-to-end QoS resources.

[0113] In combination with some embodiments of the third aspect, in some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, which is used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0114] In combination with some embodiments of the third aspect, in some embodiments, the PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU set comprehensive processing information.

[0115] In combination with some embodiments of the third aspect, in some embodiments, the method further includes: sending indication information to the fourth network element and / or the access network device, wherein the indication information indicates support for the ability to perform DSCP marking on the external IP header of the downlink packet of the PDU set based on the PDU set information and / or the QoS characteristics of the PDU set.

[0116] In combination with some embodiments of the third aspect, in some embodiments, the method further includes: determining QoS rules and QoS set parameters, wherein the QoS rules and QoS set parameters are used to configure and / or activate the PCC rules to the fourth network element.

[0117] In combination with some embodiments of the third aspect, in some embodiments, determining the QoS rules and QoS set parameters includes: obtaining QoS parameters of the QoS flow based on PCC rule information of the PCC rule bound to the QoS flow.

[0118] In combination with some embodiments of the third aspect, in some embodiments, the method further includes: obtaining DSCP information of the downlink packet of the PDU set on the first channel in the transmission network; the DSCP information is determined by the fourth network element based on the PDU set information and / or the QoS characteristics of the PDU set.

[0119] In combination with some embodiments of the third aspect, in some embodiments, the method further includes: sending the DSCP information to the access network device.

[0120] In a fourth aspect, an embodiment of the present disclosure provides an information processing method, which is executed by a fourth network element and includes:

[0121] Differentiated Services Code Point (DSCP) marking indication information is obtained, where the DSCP marking indication information indicates protocol data unit (PDU) set information and / or a PDU set quality of service (QoS) characteristic for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0122] In combination with some embodiments of the fourth aspect, in some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, which is used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0123] In combination with some embodiments of the fourth aspect, in some embodiments, the PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU set comprehensive processing information.

[0124] In conjunction with some embodiments of the fourth aspect, in some embodiments, the method further includes:

[0125] receiving indication information sent by a third network element, the indication information indicating support for a capability of performing DSCP marking on an outer IP header of a downlink packet of a PDU set based on the PDU set information and / or the QoS characteristics of the PDU set;

[0126] Based on the PDU set information and / or the PDU set QoS characteristics, a DSCP marking is performed on the outer IP header of the downlink packet of the PDU set on the first channel in the transmission network.

[0127] In conjunction with some embodiments of the fourth aspect, in some embodiments, the performing DSCP marking on the outer IP header of the downlink packet of the PDU set on the first channel in the transmission network based on the PDU set information and / or the PDU set QoS characteristics includes:

[0128] Determining DSCP information of downlink packets of the PDU set on the first channel in the transport network based on the PDU set information and / or the PDU set QoS characteristics;

[0129] Based on the DSCP information, a DSCP mark is performed on the outer IP header of the corresponding downlink packet.

[0130] In combination with some embodiments of the fourth aspect, in some embodiments, the method further includes: sending the DSCP information to a third network element.

[0131] In combination with some embodiments of the fourth aspect, in some embodiments, the fourth network element is a user plane function UPF, and the UPF is a PDU session anchor point PSA-UPF.

[0132] In a fifth aspect, an embodiment of the present disclosure provides an information processing method, which is executed by an access network device and includes:

[0133] Differentiated Services Code Point (DSCP) marking indication information is obtained, where the DSCP marking indication information indicates protocol data unit (PDU) set information and / or a PDU set quality of service (QoS) characteristic for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0134] In combination with some embodiments of the fifth aspect, in some embodiments, the method further includes: obtaining DSCP information of the downlink packet of the PDU set on the first channel in the transmission network; the DSCP information is determined by the fourth network element based on the PDU set information and / or the QoS characteristics of the PDU set.

[0135] In combination with some embodiments of the fifth aspect, in some embodiments, the method further includes: implementing a QoS profile corresponding to the DSCP marking indication information and / or the DSCP information.

[0136] In conjunction with some embodiments of the fifth aspect, in some embodiments, implementing a QoS profile corresponding to the DSCP marking indication information and / or the DSCP information includes:

[0137] receiving indication information sent by a third network element, the indication information indicating support for a capability of performing DSCP marking on an outer IP header of a downlink packet of a PDU set based on the PDU set information and / or the QoS characteristics of the PDU set;

[0138] Based on the PDU set information and / or the PDU set QoS characteristics, a QoS profile corresponding to the DSCP marking indication information and / or the DSCP information is implemented.

[0139] In combination with some embodiments of the fifth aspect, in some embodiments, the method further includes: updating previously stored DSCP marking indication information and / or DSCP information based on the acquired DSCP marking indication information and the DSCP information.

[0140] In combination with some embodiments of the fifth aspect, in some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, which is used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0141] In combination with some embodiments of the fifth aspect, in some embodiments, the PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU set comprehensive processing information.

[0142] In a sixth aspect, an embodiment of the present disclosure provides an information processing method, including:

[0143] The first network element sends first information to the second network element; wherein the first information includes Differentiated Services Code Point (DSCP) marking indication information, and the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set;

[0144] The second network element obtains the first information sent by the first network element;

[0145] The second network element generates a policy and charging control (PCC) rule based on the first information;

[0146] The second network element sends the PCC rule to a third network element;

[0147] The third network element determines the DSCP marking indication information based on the PCC rule;

[0148] The third network element sends the DSCP marking indication information to the fourth network element and / or the access network device;

[0149] The fourth network element obtains the DSCP marking indication information sent by the third network element.

[0150] In a seventh aspect, an embodiment of the present disclosure provides an information processing method, including:

[0151] The first network element sends first information to the second network element; wherein the first information includes Differentiated Services Code Point (DSCP) marking indication information, and the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set;

[0152] The second network element obtains the first information sent by the first network element;

[0153] The second network element generates a policy and charging control (PCC) rule based on the first information;

[0154] The second network element sends the PCC rule to a third network element;

[0155] The third network element determines the DSCP marking indication information based on the PCC rule;

[0156] The third network element sends the DSCP marking indication information to the fourth network element and the access network device;

[0157] The fourth network element obtains the DSCP marking indication information sent by the third network element;

[0158] The access network device obtains the DSCP marking indication information sent by the third network element.

[0159] In an eighth aspect, an embodiment of the present disclosure provides an information processing method, which is executed by a core network element and includes:

[0160] Obtaining first information sent by a first network element; wherein the first information includes differentiated services code point (DSCP) marking indication information, wherein the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set;

[0161] generating a policy and charging control (PCC) rule based on the first information;

[0162] Determining the DSCP marking indication information based on the PCC rule;

[0163] Send the DSCP marking indication information to the access network device.

[0164] In combination with some embodiments of the eighth aspect, in some embodiments, generating a policy and charging control (PCC) rule based on the first information includes: generating a PCC rule based on the DSCP marking indication information.

[0165] In combination with some embodiments of the eighth aspect, in some embodiments, the PCC rule includes the DSCP marking indication information.

[0166] In combination with some embodiments of the eighth aspect, in some embodiments, the method further includes: performing DSCP marking on the outer IP header of the downlink packet of the PDU set on the first channel in the transmission network based on the PDU set information and / or the QoS characteristics of the PDU set.

[0167] In combination with some embodiments of the eighth aspect, in some embodiments, the performing DSCP marking on the external IP header of the downlink packet of the PDU set on the first channel in the transmission network based on the PDU set information and / or the PDU set QoS characteristics includes: determining the DSCP information of the downlink packet of the PDU set on the first channel in the transmission network based on the PDU set information and / or the PDU set QoS characteristics; and performing DSCP marking on the external IP header of the corresponding downlink packet based on the DSCP information.

[0168] In combination with some embodiments of the eighth aspect, in some embodiments, the method further includes: sending the DSCP information to the access network device.

[0169] In combination with some embodiments of the eighth aspect, in some embodiments, the method further includes: determining QoS rules and QoS set parameters, wherein the QoS rules and QoS set parameters are used to configure and / or activate the PCC rules.

[0170] In combination with some embodiments of the eighth aspect, in some embodiments, determining the QoS rules and QoS set parameters includes: obtaining the QoS parameters of the QoS flow based on PCC rule information of the PCC rule bound to the QoS flow.

[0171] In a ninth aspect, an embodiment of the present disclosure provides a first network element, including:

[0172] a transceiver module, configured to send first information to a second network element; wherein the first information includes Differentiated Services Code Point (DSCP) marking indication information, wherein the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0173] In combination with some embodiments of the ninth aspect, in some embodiments, the DSCP marking indication information is used for policy and charging control PCC decision.

[0174] In combination with some embodiments of the ninth aspect, in some embodiments, the transceiver module is specifically used to: send the first information to the second network element based on an application function AF session resource creation request message; or send the first information to the second network element based on an AF session resource update request message.

[0175] In combination with some embodiments of the ninth aspect, in some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, which is used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0176] In combination with some embodiments of the ninth aspect, in some embodiments, the PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU set comprehensive processing information.

[0177] In combination with some embodiments of the ninth aspect, in some embodiments, the transceiver module is specifically used to: send the first information to the second network element via the network open function NEF; or, send the first information to the second network element via the time-sensitive communication time synchronization function TSCTSF.

[0178] In combination with some embodiments of the ninth aspect, in some embodiments, the first information also includes at least one of the following: extended reality media XRM service information; identification information of the XRM service data flow or data flow group; terminal address and / or terminal identification information; the first network element application identification information; description information of the XRM service data flow; data network name DNN; single network slice selection auxiliary information S-NSSAI; QoS parameters of the XRM service data flow.

[0179] In a tenth aspect, an embodiment of the present disclosure provides a second network element, including:

[0180] a transceiver module, configured to obtain first information sent by a first network element; wherein the first information includes Differentiated Services Code Point (DSCP) marking indication information, wherein the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0181] In combination with some embodiments of the tenth aspect, in some embodiments, the transceiver module is specifically used to: obtain the first information sent by the first network element from the network open function NEF; or, obtain the first information sent by the first network element from the time-sensitive communication time synchronization function TSCTSF.

[0182] In combination with some embodiments of the tenth aspect, in some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, which is used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0183] In combination with some embodiments of the tenth aspect, in some embodiments, the PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU set comprehensive processing information.

[0184] In combination with some embodiments of the tenth aspect, in some embodiments, the first information also includes at least one of the following: extended reality media XRM service information; identification information of the XRM service data flow or data flow group; terminal address and / or terminal identification information; the first network element application identification information; description information of the XRM service data flow; data network name DNN; single network slice selection auxiliary information S-NSSAI; QoS parameters of the XRM service data flow.

[0185] In combination with some embodiments of the tenth aspect, in some embodiments, the device further includes: a processing module, used to generate policy and charging control PCC rules based on the first information; and the transceiver module is also used to send the PCC rules to a third network element.

[0186] In combination with some embodiments of the tenth aspect, in some embodiments, the processing module is specifically used to: generate a PCC rule based on the DSCP marking indication information.

[0187] In combination with some embodiments of the tenth aspect, in some embodiments, the PCC rule includes the DSCP marking indication information.

[0188] In an eleventh aspect, an embodiment of the present disclosure provides a third network element, including:

[0189] Transceiver module, used to receive policy and charging control PCC rules;

[0190] a processing module, configured to determine, based on the PCC rule, differentiated services code point (DSCP) marking indication information; the DSCP marking indication information indicating protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set;

[0191] The transceiver module is further configured to send the DSCP marking indication information to a fourth network element and / or access network device.

[0192] In combination with some embodiments of the eleventh aspect, in some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, which is used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0193] In combination with some embodiments of the eleventh aspect, in some embodiments, the PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU set comprehensive processing information.

[0194] In combination with some embodiments of the eleventh aspect, in some embodiments, the transceiver module is also used to send indication information to the fourth network element and / or the access network device, and the indication information indicates the ability to support DSCP marking on the external IP header of the downlink packet of the PDU set based on the PDU set information and / or the QoS characteristics of the PDU set.

[0195] In combination with some embodiments of the eleventh aspect, in some embodiments, the processing module is also used to determine QoS rules and QoS set parameters, wherein the QoS rules and QoS set parameters are used to configure and / or activate the PCC rules to the fourth network element.

[0196] In combination with some embodiments of the eleventh aspect, in some embodiments, the processing module is specifically used to: obtain the QoS parameters of the QoS flow based on PCC rule information of the PCC rule bound to the QoS flow.

[0197] In combination with some embodiments of the eleventh aspect, in some embodiments, the transceiver module is also used to obtain the DSCP information of the downlink packet of the PDU set on the first channel in the transmission network; the DSCP information is determined by the fourth network element based on the PDU set information and / or the QoS characteristics of the PDU set.

[0198] In combination with some embodiments of the eleventh aspect, in some embodiments, the transceiver module is further used to send the DSCP information to the access network device.

[0199] In a twelfth aspect, an embodiment of the present disclosure provides a fourth network element, including:

[0200] The transceiver module is configured to obtain Differentiated Services Code Point (DSCP) marking indication information, where the DSCP marking indication information indicates Protocol Data Unit (PDU) set information and / or PDU set Quality of Service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0201] In combination with some embodiments of the twelfth aspect, in some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, which is used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0202] In combination with some embodiments of the twelfth aspect, in some embodiments, the PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU set comprehensive processing information.

[0203] In combination with some embodiments of the twelfth aspect, in some embodiments, the transceiver module is also used to: receive indication information sent by a third network element, the indication information indicating support for the ability to perform DSCP marking on the external IP header of the downlink packet of the PDU set based on the PDU set information and / or the PDU set QoS characteristics; a processing module is used to perform DSCP marking on the external IP header of the downlink packet of the PDU set on the first channel in the transmission network based on the PDU set information and / or the PDU set QoS characteristics.

[0204] In combination with some embodiments of the twelfth aspect, in some embodiments, the processing module is specifically used to: determine the DSCP information of the downlink packet of the PDU set on the first channel in the transmission network based on the PDU set information and / or the QoS characteristics of the PDU set; and based on the DSCP information, perform DSCP marking on the external IP header of the corresponding downlink packet.

[0205] In combination with some embodiments of the twelfth aspect, in some embodiments, the transceiver module is further used to: send the DSCP information to a third network element.

[0206] In combination with some embodiments of the twelfth aspect, in some embodiments, the fourth network element is a user plane function UPF, and the UPF is a PDU session anchor point PSA-UPF.

[0207] In a thirteenth aspect, an embodiment of the present disclosure provides an access network device, including:

[0208] The transceiver module is configured to obtain Differentiated Services Code Point (DSCP) marking indication information, where the DSCP marking indication information indicates Protocol Data Unit (PDU) set information and / or PDU set Quality of Service (QoS) characteristics for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

[0209] In combination with some embodiments of the thirteenth aspect, in some embodiments, the transceiver module is also used to: obtain the DSCP information of the downlink packet of the PDU set on the first channel in the transmission network; the DSCP information is determined by the fourth network element based on the PDU set information and / or the QoS characteristics of the PDU set.

[0210] In combination with some embodiments of the thirteenth aspect, in some embodiments, the processing module is used to: implement a QoS profile corresponding to the DSCP marking indication information and / or the DSCP information.

[0211] In combination with some embodiments of the thirteenth aspect, in some embodiments, the transceiver module is further used to receive indication information sent by a third network element, wherein the indication information indicates support for the ability to perform DSCP marking on the external IP header of the downlink packet of the PDU set based on the PDU set information and / or the PDU set QoS characteristics; the processing module is specifically used to: based on the PDU set information and / or the PDU set QoS characteristics, implement a QoS profile corresponding to the DSCP marking indication information and / or the DSCP information.

[0212] In combination with some embodiments of the thirteenth aspect, in some embodiments, the processing module is further used to: update the previously stored DSCP marking indication information and / or DSCP information based on the acquired DSCP marking indication information and the DSCP information.

[0213] In combination with some embodiments of the thirteenth aspect, in some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, which is used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0214] In combination with some embodiments of the thirteenth aspect, in some embodiments, the PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU set comprehensive processing information.

[0215] In a fourteenth aspect, an embodiment of the present disclosure provides a communication system, including:

[0216] A core network device, configured to perform the information processing method described in any one of the first, second, third, fourth, sixth, and eighth aspects;

[0217] The access network device is configured to execute the information processing method described in the fifth aspect above.

[0218] In the fifteenth aspect, an embodiment of the present disclosure proposes a communication device, comprising: one or more processors; wherein the processor is used to call instructions to enable the communication device to execute the optional implementation methods of the aforementioned first aspect, second aspect, third aspect, fourth aspect, fifth aspect, sixth aspect, and eighth aspect.

[0219] In the sixteenth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the optional implementation methods of the aforementioned first aspect, second aspect, third aspect, fourth aspect, fifth aspect, sixth aspect, and eighth aspect.

[0220] In the seventeenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation methods of the first, second, third, fourth, fifth, sixth and eighth aspects.

[0221] In the eighteenth aspect, an embodiment of the present disclosure proposes a computer program, which, when running on a computer, enables the computer to execute the method described in the optional implementation of the aforementioned first, second, third, fourth, fifth, sixth, and eighth aspects.

[0222] In a nineteenth aspect, an embodiment of the present disclosure provides a chip or chip system. The chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first, second, third, fourth, fifth, sixth, and eighth aspects above.

[0223] It is understandable that the first network element, the second network element, the third network element, the fourth network element, the core network device, the core network element, the access network device, the communication system, the storage medium, the program product, the computer program, the chip, or the chip system described above are all used to perform the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0224] The present disclosure provides an information processing method and apparatus thereof. In some embodiments, the terms information processing method, communication method, etc. are interchangeable, the terms information processing apparatus, communication apparatus, etc. are interchangeable, and the terms information processing system, communication system, etc. are interchangeable.

[0225] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0226] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0227] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0228] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0229] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0230] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0231] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0232] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0233] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0234] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0235] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0236] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0237] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0238] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0239] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0240] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0241] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0242] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0243] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0244] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. The communication system may include, but is not limited to, a first network element, a second network element, a third network element, a fourth network element, and an access network device. The number and form of devices shown in Figure 1A are for example purposes only and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more first network elements, two or more second network elements, two or more third network elements, two or more fourth network elements, and two or more access network devices may be included. The communication system 100 shown in Figure 1A includes, for example, a first network element 101, a second network element 102, a third network element 103, a fourth network element 104, and an access network device 105.

[0245] In some embodiments, the terminal herein may be an entity on the user side for receiving or transmitting signals, such as a mobile phone. It may also be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal may be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal.

[0246] In some embodiments, the first network element 101 , the second network element 102 , the third network element 103 and the fourth network element 104 may be network elements of core network devices, respectively.

[0247] In some embodiments, the second network element 102, the third network element 103, and the fourth network element 104 may be network elements of a core network device, respectively. The first network element 101 is not a network element of a core network device.

[0248] In some embodiments, the first network element 101 is, for example, an application function (AF).

[0249] In some embodiments, the second network element 102 is, for example, a policy control function (PCF).

[0250] In some embodiments, the third network element 103 is, for example, a session management function (SMF).

[0251] In some embodiments, the fourth network element 104 is, for example, a user plane function (UPF).

[0252] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0253] In some embodiments, the core network device may be a single device including a first network element, a second network element, a third network element, a fourth network element, etc., or including the second network element, the third network element, the fourth network element, etc., or may be a plurality of devices or a group of devices including all or part of the second network element 102, the third network element 103, and the fourth network element 104, etc. The network element may be virtual or physical. The core network may include, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0254] As shown in Figure 1B, the 5G system architecture may include but is not limited to the following network functions: PCF, SMF, UPF. The 5G system architecture may also include AMF (Access and Mobility Management Function). In some embodiments, the interface between SMF and UPF is the N4 interface. The interface between SMF and PCF may be the N7 interface, the interface between SMF and AMF is the N11 interface, and the interface between AMF and PCF is the N15 interface.

[0255] In some embodiments, the 5G system architecture may further include a (R)AN (Radio) Access Network). The interface between the (R)AN and the AMF may be an N2 interface, and the interface between the AMF and the terminal (UE) may be an N1 interface. The interface between the (R)AN and the UPF may be an N3 interface.

[0256] In some embodiments, the AMF can support UEs with different mobility management requirements. The AMF performs at least one of the following main tasks: non-access stratum (NAS) signaling termination; NAS signaling security; access stratum security control; core network inter-node signaling for mobility between 3GPP access networks; idle mode UE reachability (including control and execution of paging retransmissions); registration area management; support for intra-system and inter-system mobility; access authentication; access authorization, including roaming rights check; mobility management control (subscription and policy); support for network slicing; SMF selection.

[0257] In some embodiments, the SMF can work with the AMF to support customized mobility management solutions, such as "Mobile Initiated Connection Only" (MICO) or RAN enhancements, such as the "RRC Inactive" state. The SMF can perform at least one of the following main tasks: session management; UE IP address allocation and management; UPF selection and control; configuring flow control in the UPF to route traffic to the appropriate destination; policy enforcement and QoS control; downlink data notification.

[0258] In some embodiments, the UPF can perform at least one of the following main tasks: an anchor point for intra-system and inter-system mobility; an external PDU (Protocol Data Unit) session point connected to the data network; packet routing and forwarding; packet inspection and user plane policy rule execution part; traffic usage reporting; an uplink classifier to support routing of service flows to the data network; a branch point to support multi-host PDU sessions; QoS processing for the user plane, such as packet filtering, gating, and uplink and downlink rate implementation; uplink service verification (SDF (Service Data Flow) to QoS flow mapping); downlink packet buffering and downlink data notification triggering.

[0259] In some embodiments, PCF can perform at least one of the following main tasks: application and business data flow monitoring; QoS control, quota management, flow-based billing; background data transmission policy negotiation; management of PFD (packet flow descriptions) configured from a third-party AS through NEF (Network Exposure Function) and PFDF (packet flow descriptions function); data flow diversion management (different DN (Data Network)); UDR (Unified Data Repository) front-end function to provide user subscription information; provide policies related to network selection and mobility management; configuration of UE policies (the network side supports providing policy information to the UE, such as network discovery and selection policies, network slice selection policies).

[0260] In some embodiments, the 5G system architecture may further include an AF, which is similar to an application server and can interact with other 5G core network control plane NFs (Network Functions) and provide business services.

[0261] In some embodiments, the 5G system architecture may further include at least one of the following network functions: Authentication Server Function (AUSF); Data Network (DN), for example, operator services, Internet access or third-party services; Unstructured Data Storage Function (UDSF); NEF; Network Repository Function (NRF); Network Slice Admission Control Function (NSACF); Network Slice-specific and SNPN Authentication and Authorization Function (NSSAAF); Network Slice Selection Function (NSSF); Unified Data Management (UDM); UDR; Edge Application Server Discovery Function (EASDF).

[0262] In some embodiments, the 5G system architecture further includes the following network entity: a service communication proxy (SCP).

[0263] In some embodiments, the access network device 105 is, for example, a node or device that accesses a terminal device to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0264] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0265] In some embodiments, the access network device 105 can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0266] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0267] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figures 1A and 1B, or a portion of the entities, but are not limited thereto. The entities shown in Figures 1A and 1B are examples. The communication system may include all or part of the entities shown in Figures 1A and 1B, or may include other entities other than those shown in Figures 1A and 1B. The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationship between the entities is an example, and the entities may be connected or disconnected. The connection may be in any manner, directly or indirectly, and wired or wireless.

[0268] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0269] It's important to note that mobile media services, cloud AR (Augmented Reality) / VR (Virtual Reality) and other extended reality (XR) services, cloud gaming, and video-based remote control of machines or drones are expected to contribute increasingly high traffic to 5G networks. Multimodal data describes the input of a single service / application from the same device or different devices (including sensors), which may be output to one or more destination devices. The data streams in multimodal data often have some, or even strong, correlation, such as synchronization between audio and video streams, or tactile and visual synchronization. These media services share common characteristics within their data streams, between data streams, and in terms of the network transmission requirements. Effectively identifying and leveraging these characteristics will facilitate network and service transmission and control, as well as enhance service assurance and user experience.

[0270] Extended Reality Media (XRM) and interactive media services require the 5GS system to comprehensively consider the QoS (Quality of Service) characteristics of the relevant data flows. For example, multiple XRM data flows within a single UE, and XRM data flows across multiple UEs, must ensure consistent QoS authorization and execution.

[0271] In some embodiments, the application function (AF) is supported to enhance the function of processing XRM service data streams at the protocol data unit set granularity (Per PDU set). The AF is supported to enhance the QoS perception and guarantee of XRM service data streams, as well as the user's quality of experience (QoE). Including AF providing PDU set specific QoS characteristics and protocol description (PDU Set specific QoS characteristics and Protocol Description). In some embodiments, the terms such as "PDU set specific QoS characteristics" and "PDU set QoS characteristics" can be used interchangeably. Among them, the PDU set QoS characteristics include at least one of the following: PDU set delay budget (PDU Set Delay Budget, PSDB); PDU set error rate (PDU Set Error Rate, PSER); PDU set integrated handling information (PDU Set Integrated Handling Information, PSIHI).

[0272] In some embodiments, the SMF and UPF may, in conjunction with the protocol description and protocol header extension provided by the AF, perform GTP-U (GPRS Tunnelling Protocol for the user plane) header extension of the corresponding PDU in the corresponding SDF (Service Data Flow) PDU (Protocol Data Unit) set, carrying protocol data unit set information (PDU Set Information, also called PDU set information). This PDU set information is used by the NG-RAN (access network equipment) for PDU set-based QoS processing. The PDU set information includes at least one of the following: PDU Set Sequence Number; Indication of End PDU of the PDU Set; PDU Sequence Number within a PDU Set; PDU Set Size in bytes; PDU Set Importance, which identifies the relative importance of a PDU Set compared to other PDU Sets within a QoS Flow.

[0273] The aforementioned PDU set feature enhancements have significantly improved 5GS's QoS assurance for XRM service requirements. However, resource optimization processing at the 5GS transport layer for XRM services is not yet supported, which significantly limits the Quality of Experience (QoE) and QoS optimization effects of the current PDU set feature enhancements. Supporting resource optimization processing at the 5GS transport layer for XRM services, more effectively ensuring end-to-end QoS requirements, better adapting to resource demand and allocation, and coordinating end-to-end (E2E) QoS resources remain issues that the current 5GS system needs to address.

[0274] To this end, the embodiments of the present disclosure provide an information processing method and apparatus thereof, which can provide DSCP marking indication information to the network side through the first network element to indicate that the PDU set information and / or the PDU set QoS characteristics can be used for DSCP marking on the external IP header of the downlink packet of the PDU set. This can enable the communication system (such as 5GS) to consider the PDU set information and / or the PDU set QoS characteristics to optimize the resource scheduling and configuration of the network transport layer of the XRM service, thereby more effectively guaranteeing end-to-end QoS requirements, better adapting to resource requirements and allocation, and coordinating end-to-end QoS resources.

[0275] Figure 2 is an interactive diagram of an information processing method according to an embodiment of the present disclosure. As shown in Figure 2, the information processing method according to the embodiment of the present disclosure can be applied to a communication system 100, and the method includes but is not limited to the following steps.

[0276] Step S2101: The first network element 101 sends first information.

[0277] In some embodiments, the first information may be sent by the first network element 101 to the second network element 102. The second network element 102 receives the first information. For example, the first network element 101 sends the first information to the second network element 102, and the second network element 102 may receive the first information sent by the first network element 101.

[0278] In one possible implementation, the first network element 101 may send the first information to the second network element 102 via a network exposure function (NEF). For example, the first network element 101 is an AF, and the second network element 102 is a PCF. If the AF is an untrusted AF, the AF needs to send the first information to the PCF via the NEF.

[0279] In another possible implementation, the first network element 101 may send the first information to the second network element 102 via a time sensitive communication and time synchronization function (TSCTSF). For example, the first network element 101 is an AF, and the second network element 102 is a PCF. If the AF is a trusted AF, the AF may send the first information to the PCF via the TSCTSF.

[0280] In some embodiments, the first information may be Nnef_AFsessionWithQoS_Create request (AF session creation request with specific QoS, also known as AF session resource creation request) information, or Nnef_AFsessionWithQoS_Update request (AF session update request with specific QoS, also known as AF session resource update request) information.

[0281] In some embodiments, the above-mentioned first information may be included in the Nnef_AFsessionWithQoS_Create request (AF session creation request with specific QoS, also known as AF session resource creation request) information, and may also be included in the Nnef_AFsessionWithQoS_Update request (AF session update request with specific QoS, also known as AF session resource update request) information.

[0282] In one possible implementation, the first network element 101 sends the first information to the second network element 102 based on the AF session resource creation request message. For example, the first network element 101 is an AF, and the second network element 102 is a PCF. The AF may use the AF session resource creation request message to send the first information to the second network element 102. For example, the AF sends the AF session resource creation request message to the PCF, and the AF session resource creation request message includes the first information. In another example, the first information is the AF session resource creation request message, and the AF sends the AF session resource creation request message to the PCF.

[0283] In another possible implementation, the first network element 101 sends the first information to the second network element based on the AF session resource update request message. For example, the first network element 101 is an AF, and the second network element 102 is a PCF. The AF may use the AF session resource update request message to send the first information to the second network element 102. For example, the AF sends the AF session resource update request message to the PCF, and the AF session resource update request message includes the first information. In another example, the first information is the AF session resource update request message, and the AF sends the AF session resource update request message to the PCF.

[0284] In some embodiments, the first information may include DSCP (Differentiated Services Code Point) marking indication information, which may indicate PDU set information and / or PDU set QoS characteristics for performing DSCP marking on an outer IP (Internet Protocol) header of a downlink packet of the PDU set. Exemplarily, the DSCP marking indication information carries PDU set QoS characteristics (DSCP Marking Indication carrying PDU Set characteristics).

[0285] In some embodiments, a PDU set may include one or more PDUs that carry the payload of an information unit generated at the application level (e.g., a frame or video slice for an extended reality (XR) service). Exemplarily, all PDUs in a PDU set are transmitted within the same QoS flow.

[0286] Exemplarily, the DSCP marking indication information may indicate PDU set information and / or PDU set QoS characteristics for DSCP marking on the outer IP header of downlink packets of the PDU set on a first channel in the transport network. Exemplarily, the first channel may be the N3 channel or the N9 channel. Exemplarily, the DSCP marking indication information indicates that the PDU set information and / or PDU set QoS characteristics may be used to perform DSCP marking on the outer header of downlink packets of the PDU set on N3 / N9 in the transport network, that is, to implement differentiated processing of transport packets carrying PDU sets within a QoS flow. The N3 may be located between a 5G access network and a UPF, using the GTP-U protocol; the N9 may be located between two UPFs and is a 5G encapsulated user plane interface that supports both 3GPP and non-3GPP access. When using 3GPP access, the GTP-U protocol is used; when using non-3GPP access, other tunneling protocols are used.

[0287] In some embodiments, the DSCP marking indication information can be used for PCC determination (also referred to as PCC determination). For example, the first network element 101 is, for example, an AF. The AF can provide the DSCP marking indication information to the core network (e.g., a 5G core network, 5GC, or 5GCore) for PCC decision-making. For example, the information can be used to determine a transport layer packet marking value. For example, the transport layer packet marking value is, for example, the DSCP value of the outer IP header. In some embodiments, the terms "transport layer packet" and "transport packet" are interchangeable. In some embodiments, the terms "external IP header" and "external header" are interchangeable.

[0288] In some embodiments, the PDU set information may include at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number within the PDU set; a PDU set size; or a PDU set importance, which identifies the relative importance of the PDU set compared to other PDU sets in the QoS flow. In this embodiment, the PDU set information may include the PDU set sequence number. In this embodiment, the PDU set information may include an indication of the end PDU of the PDU set. In this embodiment, the PDU set information may include the PDU sequence number within the PDU set. In this embodiment, the PDU set information may include the PDU size. In this embodiment, the PDU set information may include the PDU set importance, which identifies the relative importance of the PDU set compared to other PDU sets in the QoS flow. It should be noted that the above embodiments are not exhaustive and are merely illustrative of some embodiments. These embodiments may be implemented individually or in combination. These embodiments are provided for illustrative purposes only and are not intended to limit the scope of the disclosed embodiments.

[0289] In some embodiments, the above-mentioned PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU set comprehensive processing information. In this embodiment, the above-mentioned PDU set quality of service QoS characteristics may include: PDU set delay budget. In this embodiment, the above-mentioned PDU set quality of service QoS characteristics may include: PDU set error rate. In this embodiment, the above-mentioned PDU set QoS characteristics may include: PDU set comprehensive processing information. It should be noted that the above-mentioned embodiments are not exhaustive, but are only illustrations of some embodiments, and the above-mentioned embodiments can be implemented individually or in combination. The above-mentioned embodiments are only for illustration and are not for specific limitation on the scope of protection of the embodiments of the present disclosure.

[0290] Optionally, in some embodiments, the above-mentioned first information may further include at least one of the following: XRM service information; identification information of the XRM service data flow or data flow group; terminal address (UE address) and / or terminal identification (UE Identifier) ​​information; first network element 101 application identification information (AF Identifier Application ID); XRM service data flow description (Flow description(s)) information; data network name (Data Network Name, DNN); single network slice selection assistance information (S-NSSAI); QoS parameters (QoS parameters) of the XRM service data flow. Exemplarily, the identification information of the XRM service data flow or data flow group may be a multi-modal service ID (multi-modal service identifier), which can be used to identify all data flows (flows) in the XRM service group (XRM service group).

[0291] In some embodiments, the first network element 101 is, for example, an AF. The present disclosure supports the AF's enhanced QoS awareness and assurance of XRM service data flows, as well as enhanced user QoE. For example, the AF can provide PDU set-specific QoS characteristics (also called PDU set QoS characteristics) and protocol descriptions to achieve enhanced QoS awareness and assurance of XRM service data flows, as well as enhanced user QoE. The SMF and UPF can, in conjunction with the protocol description and protocol header extension provided by the AF, perform GTP-U header extensions on the corresponding PDUs in the corresponding SDF PDU set to carry PDU set information. The PDU set information is used by the NG-RAN (access network equipment) for PDU set-based QoS processing. Thus, the enhanced PDU set characteristics can significantly improve the 5GS QoS assurance for XRM service requirements. Furthermore, the present disclosure provides DSCP marking indication information to the core network through the AF to achieve differentiated processing of transmission packets carrying PDU sets within the QoS flow, thereby supporting resource optimization processing at the 5GS transport layer for XRM services, more effectively ensuring end-to-end QoS requirements, better adapting to resource requirements and allocation, and coordinating end-to-end QoS resources.

[0292] In step S2102 , the second network element 102 obtains first information and generates a PCC (Policy and Charging Control) rule based on the first information.

[0293] In some embodiments, the second network element 102 can obtain the first information sent by the first network element 101 from the NEF. Exemplarily, the first network element 101 is, for example, an AF, and the second network element 102 is, for example, a PCF. If the AF is an untrusted AF, the AF needs to provide the first information to the PCF via the NEF. Exemplarily, the AF can provide the first information to the NEF via an Nnef_AFsessionWithQoS_Create request or an Nnef_AFsessionWithQoS_Update request. Optionally, the NEF performs relevant mappings, including mapping the XRM service (AF-Service-Identifier) ​​identifier to the DNN and S-NSSAI, mapping external applications to CN (Core Network) application identifiers, and mapping external UE identifiers to CN internal UE identifiers (such as the User Permanent Identifier (SUPI)) based on UDM (Unified Data Management) subscription information, as well as mapping external to internal XRM service group identifiers based on the UDM subscription information. After the NEF performs the relevant mappings, the NEF authorizes the AF request and directly provides the first information to the PCF. Exemplarily, the NEF triggers Npcf_PolicyAuthorization_Create request (create policy authorization request) and sends the first information to the PCF. The PCF receives the first information sent by the AF from the NEF, so that the PCF can execute the policy decision.

[0294] In some embodiments, the second network element 102 may obtain the first information sent by the first network element 101 from the TSCTSF. Exemplarily, the first network element 101 is, for example, an AF, and the second network element 102 is, for example, a PCF. If the AF is a trusted AF, the AF may send the first information to the PCF via the TSCTSF. Exemplarily, the AF may provide the first information to the NEF via the Nnef_AFsessionWithQoS_Create request or the Nnef_AFsessionWithQoS_Update request. The NEF authorizes the AF request and determines to call the TSCTSF based on the parameters provided by the AF to establish an AF session through the required QoS process. The PCF receives the first information sent by the AF from the TSCTSF for the PCF to execute policy decisions.

[0295] In some embodiments, the second network element 102 is, for example, a PCF, which can be used to make policy decisions. The PCF can determine that updated or new policy information needs to be sent to the third network element 103 (such as an SMF). The policy information can be represented by a PCC rule. That is, after the second network element 102 obtains the above-mentioned first information, the second network element 102 can make a policy decision based on the first information and generate corresponding PCC rules. In some embodiments, the second network element 102 generates PCC rules based on the DSCP marking indication information in the above-mentioned first information. Exemplarily, the second network element 102 is, for example, a PCF, and the PCF considers the above-mentioned DSCP marking indication information to determine the PCC rules.

[0296] In some embodiments, the PCC rule generated by the second network element 102 may include the above-mentioned DSCP marking indication information. Exemplarily, the second network element 102 is a PCF, for example. The PCF may generate a PCC rule based on the received first information. The PCC rule generated by the PCF may include the DSCP marking indication information. That is, the DSCP marking indication information may be sent to the third network element 103 in the PCC rule.

[0297] In step S2103 , the second network element 102 sends the generated PCC rule to the third network element 103 .

[0298] In some embodiments, the PCC rule generated by the second network element 102 may be sent by the second network element 102 to the third network element 103. Accordingly, the third network element 103 may receive the PCC rule generated by the second network element 102. For example, the third network element 103 may receive the PCC rule sent by the second network element 102, where the PCC rule is generated by the second network element 102.

[0299] Optionally, in some embodiments, the PCC rule generated by the second network element 102 may be generated based on the above-mentioned DSCP marking indication information. Optionally, the PCC rule generated by the second network element 102 may include the DSCP marking indication information.

[0300] In some embodiments, the second network element 102 may initiate an SM (Strategy Model) policy association modification request to the third network element 103 to send the PCC rules generated by the second network element 102 to the third network element 103. For example, the second network element 102 is a PCF, and the third network element 103 is an SMF. The PCF may initiate an SM policy association modification request (such as Npcf_SMPolicyControl_UpdateNotify request) to the SMF to send the PCC rules generated by the PCF to the SMF.

[0301] Step S2104: The third network element 103 determines the DSCP marking indication information based on the PCC rule.

[0302] In some embodiments, the second network element 102 may initiate an SM policy association modification request to the third network element 103 to send the PCC rule generated by the second network element 102 to the third network element 103. Upon receiving the PCC rule, the third network element 103 may determine the DSCP marking indication information. Exemplarily, the PCC rule is generated by the second network element 102 based on the DSCP marking indication information. Upon receiving the PCC rule sent by the second network element 102, the third network element 103 may determine the DSCP marking indication information based on the PCC rule. Exemplarily, the DSCP marking indication information may be sent to the third network element 103 in the PCC rule. Thus, upon receiving the PCC rule, the third network element 103 may obtain the DSCP marking indication information carried in the PCC rule.

[0303] In step S2105 , the third network element 103 sends the DSCP marking indication information to the fourth network element 104 .

[0304] In some embodiments, the DSCP marking indication information may be sent by the third network element 103 to the fourth network element 104. Accordingly, the fourth network element 104 may obtain the DSCP marking indication information. Optionally, the fourth network element 104 may receive the DSCP marking indication information sent by the third network element 103, that is, the fourth network element 104 may obtain the DSCP marking indication information from the third network element 103.

[0305] In some embodiments, the third network element 103 is, for example, an SMF, and the fourth network element 104 is, for example, a UPF. The SMF can trigger a PDU session modification process and provide DSCP marking indication information to the UPF.

[0306] In step S2106 , the third network element 103 sends the DSCP marking indication information to the access network device 105 .

[0307] In some embodiments, the DSCP marking indication information may be sent by the third network element 103 to the access network device 105. Accordingly, the access network device 105 may obtain the DSCP marking indication information. Optionally, the access network device 105 may receive the DSCP marking indication information sent by the third network element 103, that is, the access network device 105 may obtain the DSCP marking indication information from the third network element 103.

[0308] In some embodiments, the third network element 103 is, for example, an SMF, and the access network device 105 is, for example, an NG-RAN. The SMF can trigger a PDU session modification process and provide DSCP marking indication information to the NG-RAN.

[0309] In some embodiments, step S2106 may be optional and may be omitted or replaced in different embodiments. In some embodiments, the third network element 103 sends the DSCP marking indication information to the fourth network element 104, or the third network element 103 sends the DSCP marking indication information to the fourth network element 104 and the access network device 105 respectively.

[0310] Step S2107 , the third network element 103 sends indication information to the fourth network element 104 .

[0311] In some embodiments, the indication information may be sent by the third network element 103 to the fourth network element 104. Accordingly, the fourth network element 104 may obtain the indication information. Optionally, the fourth network element 104 may receive the indication information sent by the third network element 103, that is, the fourth network element 104 may obtain the indication information from the third network element 103.

[0312] In some embodiments, the indication information indicates whether the capability of performing DSCP marking on the outer IP header of the downlink packet of the PDU set based on the PDU set information and / or the PDU set QoS characteristics is supported. Exemplarily, the third network element 103 may send indication information to the fourth network element 104, where the indication information includes a first value, which may indicate the capability of performing DSCP marking using the PDU set information and / or the PDU set QoS characteristics, so that the fourth network element 104 will consider the PDU set information and / or the PDU set QoS characteristics and enforce DSCP marking on the outer IP header of the downlink packet of the PDU set on the first channel (e.g., N3 / N9) in the transport network.

[0313] Exemplarily, the third network element 103 may send indication information to the fourth network element 104, where the indication information includes a second value, which may indicate that the ability to perform DSCP marking using PDU set information and / or PDU set QoS characteristics is not supported. Then, the fourth network element 104 will not consider the PDU set information and / or PDU set QoS characteristics when performing DSCP marking.

[0314] In some embodiments, the above-mentioned indication information is used to indicate the ability to support DSCP marking on the outer IP header of the downlink packet of the PDU set based on the PDU set information and / or the PDU set QoS characteristics. Exemplarily, the third network element 103 can send indication information to the fourth network element 104. When the fourth network element 104 receives the indication information, it will consider the PDU set information and / or the PDU set QoS characteristics and force DSCP marking on the outer IP header of the downlink packet of the PDU set on the first channel (such as N3 / N9) in the transmission network. Exemplarily, if the third network element 103 does not send indication information to the fourth network element 104 and the fourth network element 104 does not receive the indication information, it means that the ability to use the PDU set information and / or the PDU set QoS characteristics for DSCP marking is not supported, and the fourth network element 104 will not consider the PDU set information and / or the PDU set QoS characteristics when performing DSCP marking.

[0315] In some embodiments, step S2107 may be optional and may be omitted or replaced in different embodiments. Exemplarily, by default, the fourth network element 104 will consider the PDU set information and / or the PDU set QoS characteristics and enforce a DSCP marking on the outer IP header of the downlink packet of the PDU set on the first channel (e.g., N3 / N9) in the transport network.

[0316] Step S2108 , the third network element 103 sends indication information to the access network device 105 .

[0317] In some embodiments, the above-mentioned indication information may be sent by the third network element 103 to the access network device 105. Accordingly, the access network device 105 may obtain the above-mentioned indication information. Optionally, the access network device 105 may receive the indication information sent by the third network element 103, that is, the access network device 105 may obtain the indication information from the third network element 103.

[0318] In some embodiments, the indication information indicates whether the capability of performing DSCP marking on the outer IP header of the downlink packet of the PDU set based on the PDU set information and / or the PDU set QoS characteristics is supported. Exemplarily, the third network element 103 may send indication information to the access network device 105, where the indication information includes a first value, which may indicate the capability of performing DSCP marking using the PDU set information and / or the PDU set QoS characteristics, so that the access network device 105 considers the PDU set information and / or the PDU set QoS characteristics for transmission resource allocation and executes the QoS profile corresponding to the relevant DSCP.

[0319] Exemplarily, the third network element 103 may send indication information to the access network device 105, where the indication information includes a second value, which may indicate that the ability to perform DSCP marking using PDU set information and / or PDU set QoS characteristics is not supported. When the access network device 105 executes the QoS profile corresponding to the relevant DSCP, the PDU set information and / or PDU set QoS characteristics will not be considered.

[0320] In some embodiments, the above-mentioned indication information is used to indicate the ability to support DSCP marking on the outer IP header of the downlink packet of the PDU set based on the PDU set information and / or the PDU set QoS characteristics. Exemplarily, the third network element 103 can send indication information to the access network device 105, and the access network device 105, upon receiving the indication information, will consider the PDU set information and / or the PDU set QoS characteristics used for transmission resource allocation and execute the QoS profile corresponding to the relevant DSCP. Exemplarily, if the third network element 103 does not send indication information to the access network device 105, and the access network device 105 does not receive the indication information, it means that the ability to use the PDU set information and / or the PDU set QoS characteristics for DSCP marking is not supported, and the access network device 105 will not consider the PDU set information and / or the PDU set QoS characteristics when executing the QoS profile corresponding to the relevant DSCP.

[0321] In some embodiments, step S2108 may be optional and may be omitted or replaced in different embodiments. Exemplarily, the default access network device 105 considers the PDU set information and / or PDU set QoS characteristics for transmission resource allocation and executes the QoS profile corresponding to the relevant DSCP.

[0322] In some embodiments, the third network element 103 sends the above-mentioned indication information to the fourth network element 104, or the third network element 103 sends the above-mentioned indication information to the fourth network element 104 and the access network device 105 respectively.

[0323] Step S2109: The third network element 103 determines QoS rules and QoS set parameters based on the PCC rules.

[0324] In some embodiments, the above-mentioned QoS rules and QoS set parameters are used to configure and / or activate PCC rules for the fourth network element 104 .

[0325] In some embodiments, the second network element 102 may initiate an SM policy association modification request to the third network element 103 to send the PCC rules generated by the second network element 102 to the third network element 103. Upon receiving the PCC rules, the third network element 103 may determine QoS rules and QoS set parameters to configure and / or activate the PCC rules for a fourth network element (e.g., a UPF). For example, via an N4 session, the third network element 103 may establish an N4 session with the fourth network element 104 and configure and / or activate the PCC rules for the fourth network element 104 through the N4 session.

[0326] In some embodiments, the third network element 103 obtains the QoS parameters of the QoS flow based on PCC rule information of the PCC rule bound to the QoS flow.

[0327] Step S2110 : The fourth network element 104 determines DSCP information of downlink packets of the PDU set on the first channel in the transport network based on the PDU set information and / or the PDU set QoS characteristics.

[0328] In some embodiments, the fourth network element 104 determines the DSCP information of the downlink packets of the PDU set on the first channel in the transport network based on the PDU set information. In some embodiments, the DSCP information may be a DSCP value. Exemplarily, the fourth network element 104 determines the DSCP information of the downlink packets of the PDU set on the first channel in the transport network based on a mapping relationship between the PDU set information and the DSCP information. For example, assuming that the PDU set information includes a PDU set sequence number, a mapping relationship exists between the PDU sequence number and the DSCP value. Based on this mapping relationship, the DSCP value of the downlink packets of the PDU set on the first channel in the transport network can be determined.

[0329] In some embodiments, the fourth network element 104 determines the DSCP information of the downlink packets of the PDU set on the first channel in the transport network based on the PDU set QoS characteristics. Exemplarily, the fourth network element 104 determines the DSCP information of the downlink packets of the PDU set on the first channel in the transport network based on a mapping relationship between the PDU set QoS characteristics and the DSCP information. For example, if the PDU set QoS characteristics include a PDU set delay budget, and there is a mapping relationship between the PDU set delay budget and the DSCP value, the DSCP value of the downlink packets of the PDU set on the first channel in the transport network can be determined based on this mapping relationship.

[0330] In some embodiments, the fourth network element 104 determines DSCP information for downlink packets of the PDU set on the first channel in the transport network based on the PDU set information and the PDU set QoS characteristics. Exemplarily, the fourth network element 104 determines the DSCP information for downlink packets of the PDU set on the first channel in the transport network based on a mapping relationship between the PDU set information and the DSCP information, and a mapping relationship between the PDU set QoS characteristics and the DSCP information. For example, the DSCP information for downlink packets of the PDU set on the first channel in the transport network can be determined based on the intersection of the mapping relationship between the PDU set information and the DSCP information, and the mapping relationship between the PDU set QoS characteristics and the DSCP information.

[0331] In some embodiments, the fourth network element 104 may be a UPF, and the UPF may be a PSA-UPF (PDU Session Anchor-User Plane Function).

[0332] In some embodiments, the fourth network element 104 may determine the DSCP information of the downlink packets of the PDU set on the first channel in the transmission network based on the PDU set information and / or the PDU set QoS characteristics after receiving the above-mentioned indication information sent by the third network element 103. Optionally, the above-mentioned indication information is used to indicate the ability to support DSCP marking on the outer IP header of the downlink packets of the PDU set based on the PDU set information and / or the PDU set QoS characteristics. When the fourth network element 104 receives the above-mentioned indication information sent by the third network element 103, the fourth network element 104 may consider the PDU set information and / or the PDU set QoS characteristics and force DSCP marking on the outer IP header of the downlink packets of the PDU set on the first channel (such as N3 / N9) in the transmission network.

[0333] In some embodiments, step S2107 may be optional and may be omitted or replaced in different embodiments. Exemplarily, by default, the fourth network element 104 will consider the PDU set information and / or the PDU set QoS characteristics and enforce a DSCP marking on the outer IP header of the downlink packet of the PDU set on the first channel (e.g., N3 / N9) in the transport network.

[0334] Step S2111 : The fourth network element 104 performs a DSCP marking on the outer IP header of the corresponding downlink packet based on the DSCP information.

[0335] Optionally, after the fourth network element 104 determines the DSCP information of the downlink packet of the PDU set on the first channel in the transmission network based on the PDU set information and / or the QoS characteristics of the PDU set, it can perform DSCP marking on the external IP header of the corresponding downlink packet based on the DSCP information, that is, to implement differentiated processing of the transmission packet carrying the PDU set in the QoS flow.

[0336] In step S2112 , the fourth network element 104 sends the DSCP information to the third network element 103 .

[0337] In some embodiments, the DSCP information may be sent by the fourth network element 104 to the third network element 103. Accordingly, the third network element 103 may obtain the DSCP information. For example, the third network element 103 may receive the DSCP information sent by the fourth network element 104. That is, the third network element 103 may obtain the DSCP information from the fourth network 104, so that the third network element 103 can send the DSCP information to the access network device 105, so that the access network device 105 can execute the QoS profile corresponding to the relevant DSCP based on the DSCP information.

[0338] In some embodiments, step S2112 is optional and may be omitted or replaced in different embodiments.

[0339] In step S2113 , the third network element 103 sends the DSCP information to the access network device 105 .

[0340] In some embodiments, the DSCP information may be sent by the third network element 103 to the access network device 105. Accordingly, the access network device 105 may obtain the DSCP information. For example, the access network device 105 may receive the DSCP information sent by the third network element 10. That is, the access network device 105 may obtain the DSCP information from the third network element 10, so that the access network device 105 can execute the QoS profile corresponding to the relevant DSCP based on the DSCP information.

[0341] In some embodiments, step S2113 is optional and may be omitted or replaced in different embodiments.

[0342] In step S2114 , the access network device 105 implements (also called enforces) a QoS profile corresponding to the DSCP marking indication information and / or the DSCP information based on the PDU set information and / or the PDU set QoS characteristics.

[0343] In some embodiments, the access network device 105 may execute a QoS profile corresponding to the relevant DSCP based on the PDU set information and / or PDU set QoS characteristics used for transmission resource allocation, using DSCP marking indication information and / or DSCP information.

[0344] In some embodiments, the access network device 105 may, upon receiving the above-mentioned indication information sent by the third network element 103, implement a QoS profile corresponding to the DSCP marking indication information and / or the DSCP information based on the PDU set information and / or the PDU set QoS characteristics. Optionally, the above-mentioned indication information is used to indicate the ability to support DSCP marking on the outer IP header of the downlink packet of the PDU set based on the PDU set information and / or the PDU set QoS characteristics. When the access network device 105 receives the above-mentioned indication information sent by the third network element 103, the access network device 105 considers the PDU set information and / or the PDU set QoS characteristics used for transmission resource allocation and executes the QoS profile corresponding to the relevant DSCP.

[0345] In some embodiments, step S2108 may be optional and may be omitted or replaced in different embodiments. Exemplarily, by default, the fourth network element 104 access network device 105 considers the PDU set information and / or PDU set QoS characteristics for transmission resource allocation and executes the QoS profile corresponding to the relevant DSCP.

[0346] In step S2115 , the access network device 105 updates the previously stored DSCP marking indication information and / or DSCP information based on the acquired DSCP marking indication information and DSCP information.

[0347] That is, if the third network element 103 provides DSCP marking indication information and / or DSCP information to the access network device 105 taking into account the PDU set information and / or PDU set QoS characteristics, the access network device 105 will replace the previously stored DSCP indication or DSCP information with the DSCP marking indication information and / or DSCP information.

[0348] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0349] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0350] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0351] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0352] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0353] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0354] The method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2115. For example, step S2101+step S2102+step S2103+step S2104+step S2105+step S2106+step S2109+step S2110+step S2111+step S2114 can be implemented as an independent embodiment, step S2101+step S2102+step S2103+step S2104+step S2105+step S2106+step S2107+step S2108+step S2109+step S2110+step S2111+step S2114+step S2115 can be implemented as an independent embodiment, and step S2101+step S2102+step S2103+step S2104+step S2105+step S2106+step S2109+step S2110+step S2111+step S2114 2112+step S2113+step S2114 can be implemented as an independent embodiment, step S2101+step S2102+step S2103+step S2104+step S2105+step S2106+step S2109+step S2110+step S2111+step S2112+step S2113+step S2114+step S2115 can be implemented as an independent embodiment, step S2101+step S2102+step S2103+step S2104+step S2105+step S2106+step S2107+step S2108+step S2109+step S2110+step S2111+step S2112+step S2113+step S2114+step S2115 can be implemented as an independent embodiment, but are not limited to this.

[0355] In some embodiments, step S2107, step S2108, step S2112, step S2113 and step S2115 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0356] In some embodiments, step S2105 and step S2106 can be exchanged in order or executed simultaneously, step S2107 and step S2108 can be exchanged in order or executed simultaneously, and step S2105, step S2106, and step S2107, step S2108 can be exchanged in order or executed simultaneously.

[0357] In some embodiments, step S2112, step S2113, and step S2115 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0358] In some embodiments, step S2107, step S2108, and step S2115 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0359] In some embodiments, step S2107 and step S2108 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0360] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0361] FIG3A is a flow chart of an information processing method according to an embodiment of the present disclosure. As shown in FIG3A , the information processing method according to the embodiment of the present disclosure can be applied to the first network element 101, and the method includes but is not limited to the following steps.

[0362] Step S3101: Send first information to the second network element 102 via NEF or TSCTSF.

[0363] In some embodiments, the first information may be sent by the first network element 101 to the second network element 102. The second network element 102 receives the first information. For example, the first network element 101 sends the first information to the second network element 102, and the second network element 102 may receive the first information sent by the first network element 101.

[0364] In a possible implementation, the first network element 101 may send the first information to the second network element 102 via the NEF.

[0365] In another possible implementation, the first network element 101 may send the first information to the second network element 102 via the TSCTSF.

[0366] In some embodiments, the first information may include DSCP marking indication information, which may indicate PDU set information and / or PDU set QoS characteristics for performing DSCP marking on an outer IP header of a downlink packet of the PDU set.

[0367] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0368] FIG3B is a flow chart of an information processing method according to an embodiment of the present disclosure. As shown in FIG3B , the information processing method according to the embodiment of the present disclosure can be applied to the first network element 101, and the method includes but is not limited to the following steps.

[0369] Step S3201: Send first information to the second network element 102.

[0370] In some embodiments, the first information may include DSCP marking indication information, which may indicate PDU set information and / or PDU set QoS characteristics for performing DSCP marking on an outer IP header of a downlink packet of the PDU set.

[0371] In some embodiments, the DSCP marking indication information is used for PCC decision making.

[0372] In some embodiments, the first information may be sent to the second network element 102 based on an application function AF session resource creation request message.

[0373] In some embodiments, the first information may be sent to the second network element 102 based on the AF session resource update request message.

[0374] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0375] In some embodiments, the PDU set quality of service (QoS) characteristics include at least one of the following: a PDU set delay budget; a PDU set error rate; and PDU set comprehensive processing information.

[0376] In some embodiments, the first network element 101 sends the first information to the second network element 102 via a network exposure function NEF. In some embodiments, the first network element 101 sends the first information to the second network element 102 via a time sensitive communication time synchronization function TSCTSF.

[0377] In some embodiments, the first information also includes at least one of the following: extended reality media XRM service information; identification information of the XRM service data flow or data flow group; terminal address and / or terminal identification information; first network element 101 application identification information; description information of the XRM service data flow; data network name DNN; single network slice selection auxiliary information S-NSSAI; QoS parameters of the XRM service data flow.

[0378] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0379] FIG4A is a flow chart showing an information processing method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to an information processing method, which can be executed by the second network element 102 and can include but is not limited to the following steps.

[0380] Step S4101: Acquire first information, and generate PCC rules based on the first information.

[0381] In some embodiments, the second network element obtains the first information sent by the first network element from the network open function NEF. Optional implementations thereof can be found in the optional implementations of step S2102 in FIG2 and other related parts in the embodiment involved in FIG2 , which will not be described in detail here.

[0382] In some embodiments, the second network element obtains the first information sent by the first network element from the TSCTSF. Optional implementations thereof can be found in the optional implementations of step S2102 in FIG2 and other related parts in the embodiment involved in FIG2 , which will not be described in detail here.

[0383] In some embodiments, the first information may include DSCP marking indication information, which may indicate PDU set information and / or PDU set QoS characteristics for performing DSCP marking on an outer IP header of a downlink packet of the PDU set.

[0384] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0385] In some embodiments, the PDU set quality of service (QoS) characteristics include at least one of the following: a PDU set delay budget; a PDU set error rate; and PDU set comprehensive processing information.

[0386] In some embodiments, the first information also includes at least one of the following: extended reality media XRM service information; identification information of the XRM service data flow or data flow group; terminal address and / or terminal identification information; first network element 101 application identification information; description information of the XRM service data flow; data network name DNN; single network slice selection auxiliary information S-NSSAI; QoS parameters of the XRM service data flow.

[0387] In some embodiments, the second network element 102 generates a PCC rule based on the above-mentioned DSCP marking indication information.

[0388] The optional implementation of step S4101 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0389] Step S4102: Send the generated PCC rules to the third network element 103.

[0390] The optional implementation of step S4102 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0391] FIG4B is a flow chart illustrating an information processing method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to an information processing method, which may be executed by the second network element 102 and may include but is not limited to the following steps.

[0392] Step S4201: Obtain first information sent by the first network element 101. The first information includes DSCP marking indication information, which indicates PDU set information and / or PDU set QoS characteristics for performing DSCP marking on the outer IP header of the downlink packet of the PDU set.

[0393] In some embodiments, the second network element 102 obtains the first information sent by the first network element from the NEF.

[0394] In some embodiments, the second network element 102 obtains the first information sent by the first network element from the TSCTSF.

[0395] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0396] In some embodiments, the PDU set quality of service (QoS) characteristics include at least one of the following: a PDU set delay budget; a PDU set error rate; and PDU set comprehensive processing information.

[0397] In some embodiments, the first information also includes at least one of the following: extended reality media XRM service information; identification information of the XRM service data flow or data flow group; terminal address and / or terminal identification information; first network element application identification information; description information of the XRM service data flow; data network name DNN; single network slice selection auxiliary information S-NSSAI; QoS parameters of the XRM service data flow.

[0398] In some embodiments, the second network element 102 generates a policy and charging control (PCC) rule based on the first information; and sends the PCC rule to the third network element 103 .

[0399] In some embodiments, the second network element 102 may generate a PCC rule based on the DSCP marking indication information.

[0400] In some embodiments, the PCC rule includes DSCP marking indication information.

[0401] For the optional implementation of the information processing method described on the second network element side in this embodiment, reference may be made to the optional implementation of the relevant steps on the second network element 102 side in the communication system in FIG2 above, which will not be described in detail here.

[0402] FIG5A is a flow chart of an information processing method according to an embodiment of the present disclosure. As shown in FIG5A , the embodiment of the present disclosure relates to an information processing method, which can be executed by the third network element 103 and can include but is not limited to the following steps.

[0403] Step S5101: Receive PCC rules.

[0404] In some embodiments, the PCC rule may be sent by the second network element 102 to the third network element 103. Accordingly, the third network element 103 may receive the PCC rule generated by the second network element 102. For example, the third network element 103 may receive the PCC rule sent by the second network element 102, where the PCC rule is generated by the second network element 102.

[0405] The optional implementation of step S5101 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0406] Step S5102: Determine DSCP marking indication information based on the PCC rule.

[0407] The optional implementation of step S5102 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0408] Step S5103: Send DSCP marking indication information to the fourth network element 104.

[0409] The optional implementation of step S5103 can refer to the optional implementation of step S2105 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0410] Step S5104: Send DSCP marking indication information to the access network device 105.

[0411] The optional implementation of step S5104 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0412] Step S5105: Send indication information to the fourth network element 104.

[0413] The optional implementation of step S5105 can refer to the optional implementation of step S2107 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0414] Step S5106: Send indication information to the access network device 105.

[0415] The optional implementation of step S5106 can refer to the optional implementation of step S2108 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0416] Step S5107: Determine QoS rules and QoS set parameters based on the PCC rules.

[0417] The optional implementation of step S5107 can refer to the optional implementation of step S2109 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0418] Step S5108: Obtain DSCP information of downlink packets of the PDU set on the first channel in the transmission network; the DSCP information is determined by the fourth network element based on the PDU set information and / or the PDU set QoS characteristics.

[0419] In some embodiments, the DSCP information may be sent by the fourth network element 104 to the third network element 103 .

[0420] The optional implementation of step S5108 can refer to the optional implementation of step S2112 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0421] Step S5109: Send the above DSCP information to the access network device 105.

[0422] The optional implementation of step S5109 can refer to the optional implementation of step S2113 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0423] The method involved in the embodiment of the present disclosure may include at least one of steps S5101 to S5117. For example, step S5101+step S5102+step S5103+step S5104+step S5107 can be implemented as an independent embodiment, step S5101+step S5102+step S5103+step S5104+step S5105+step S5106+step S5107 can be implemented as an independent embodiment, step S5101+step S5102+step S5103+step S5104+step S5107+step S5108+step S5109 can be implemented as an independent embodiment, step S5101+step S5102+step S5103+step S5104+step S5105+step S5106+step S5107+step S5108+step S5109 can be implemented as an independent embodiment, but are not limited to this.

[0424] In some embodiments, step S5103 and step S5104 may be exchanged in order or executed simultaneously, step S5105 and step S5106 may be exchanged in order or executed simultaneously, and step S5103 and step S5104, and step S5105 and step S5106 may be exchanged in order or executed simultaneously.

[0425] In some embodiments, step S5105, step S5106, step S5108, and step S5109 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0426] In some embodiments, step S5108 and step S5109 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0427] FIG5B is a flow chart of an information processing method according to an embodiment of the present disclosure. As shown in FIG5B , the embodiment of the present disclosure relates to an information processing method, which can be executed by the third network element 103 and can include but is not limited to the following steps.

[0428] Step S5201: Receive PCC rules.

[0429] The optional implementation of step S5201 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0430] Step S5202: Determine DSCP marking indication information based on PCC rules; the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on the outer Internet Protocol (IP) header of the downlink packet of the PDU set.

[0431] The optional implementation of step S5202 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0432] Step S5203 : Send DSCP marking indication information to the fourth network element 104 and / or the access network device 105 .

[0433] The optional implementation of step S5203 can refer to the optional implementation of step S2105 and step S2106 in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0434] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0435] In some embodiments, the PDU set quality of service (QoS) characteristics include at least one of the following: a PDU set delay budget; a PDU set error rate; and PDU set comprehensive processing information.

[0436] In some embodiments, the third network element 103 sends indication information to the fourth network element and / or the access network device, indicating support for the ability to perform DSCP marking on the outer IP header of the downlink packet of the PDU set based on the PDU set information and / or the PDU set QoS characteristics. Optional implementations can be found in the optional implementations of steps S2107 and S2108 of FIG. 2 , as well as other related portions of the embodiments involved in FIG. 2 , which are not further described here.

[0437] In some embodiments, the third network element 103 determines QoS rules and QoS set parameters, where the QoS rules and QoS set parameters are used to configure and / or activate PCC rules for the fourth network element. In some embodiments, the third network element 103 obtains QoS parameters for the QoS flow based on PCC rule information associated with the PCC rule for the QoS flow. For optional implementations, see the optional implementation of step S2109 in Figure 2 and other related portions of the embodiments described in Figure 2, which will not be further described here.

[0438] In some embodiments, the third network element 103 obtains DSCP information of downlink packets of the PDU set on the first channel in the transport network; the DSCP information is determined by the fourth network element based on the PDU set information and / or the QoS characteristics of the PDU set. For optional implementations, see the optional implementation of step S2112 in FIG. 2 and other related portions of the embodiments involved in FIG. 2 , which will not be described in detail here.

[0439] In some embodiments, the third network element 103 sends the DSCP information to the access network device. Optional implementations can be found in the optional implementation of step S2113 in FIG2 and other related parts of the embodiment involved in FIG2 , which will not be described in detail here.

[0440] For the optional implementation of the information processing method described on the third network element side in this embodiment, reference may be made to the optional implementation of the relevant steps on the third network element 103 side in the communication system in FIG2 , which will not be described in detail here.

[0441] FIG6A is a flow chart of an information processing method according to an embodiment of the present disclosure. As shown in FIG6 , the embodiment of the present disclosure relates to an information processing method, which may be executed by the fourth network element 104 and may include but is not limited to the following steps.

[0442] Step S6101: Receive indication information sent by the third network element 103.

[0443] The optional implementation of step S6101 can refer to the optional implementation of step S2107 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0444] Step S6102: Obtain DSCP marking indication information.

[0445] In some embodiments, the DSCP marking indication information may be sent by the third network element 103 to the fourth network element 104. Accordingly, the fourth network element 104 may obtain the DSCP marking indication information. Optionally, the fourth network element 104 may receive the DSCP marking indication information sent by the third network element 103, that is, the fourth network element 104 may obtain the DSCP marking indication information from the third network element 103.

[0446] The optional implementation of step S6102 can refer to the optional implementation of step S2105 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0447] In some embodiments, step S6101 and step S6102 may be executed in an interchanged order or simultaneously.

[0448] Step S6103: Determine DSCP information of downlink packets of the PDU set on the first channel in the transmission network based on the PDU set information and / or the PDU set QoS characteristics.

[0449] The optional implementation of step S6103 can refer to the optional implementation of step S2110 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0450] Step S6104: Based on the DSCP information, a DSCP mark is performed on the outer IP header of the corresponding downlink packet.

[0451] The optional implementation of step S6104 can refer to the optional implementation of step S2111 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0452] Step S6105: Send the above DSCP information to the third network element 103.

[0453] The optional implementation of step S6105 can refer to the optional implementation of step S2112 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0454] FIG6B is a flow chart of an information processing method according to an embodiment of the present disclosure. As shown in FIG6B , the embodiment of the present disclosure relates to an information processing method, which may be executed by the fourth network element 104 and may include but is not limited to the following steps.

[0455] Step S6201: Obtain DSCP marking indication information, where the DSCP marking indication information indicates PDU set information and / or PDU set QoS characteristics for performing DSCP marking on an outer IP header of a downlink packet of the PDU set.

[0456] In some embodiments, the fourth network element is a user plane function UPF, and the UPF is a PSA-UPF.

[0457] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0458] In some embodiments, the PDU set quality of service (QoS) characteristics include at least one of the following: a PDU set delay budget; a PDU set error rate; and PDU set comprehensive processing information.

[0459] The optional implementation of step S6201 can refer to the optional implementation of step S2105 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0460] In some embodiments, the fourth network element 104 receives indication information sent by the third network element, the indication information indicating support for DSCP marking on the outer IP header of the downlink packet of the PDU set based on the PDU set information and / or the PDU set QoS characteristics; and based on the PDU set information and / or the PDU set QoS characteristics, performs DSCP marking on the outer IP header of the downlink packet of the PDU set on the first channel in the transport network. For optional implementations, see the optional implementation of step S2107 in FIG. 2 and other related portions of the embodiments involved in FIG. 2 , which will not be described in detail here.

[0461] In some embodiments, the fourth network element 104 determines the DSCP information of the downlink packets of the PDU set on the first channel in the transmission network based on the PDU set information and / or the QoS characteristics of the PDU set; and based on the DSCP information, performs a DSCP marking on the outer IP header of the corresponding downlink packets. For optional implementations, see the optional implementations of steps S2110 and S2111 in FIG. 2 , as well as other related portions of the embodiments involved in FIG. 2 , which will not be described in detail here.

[0462] In some embodiments, the fourth network element 104 sends the DSCP information to the third network element. Optional implementations can be found in the optional implementations of step S2112 in FIG2 and other related parts of the embodiment involved in FIG2 , which will not be described in detail here.

[0463] FIG7A is a flow chart showing an information processing method according to an embodiment of the present disclosure. As shown in FIG7A , the embodiment of the present disclosure relates to an information processing method, which can be executed by the access network device 105 and can include but is not limited to the following steps.

[0464] Step S7101: Obtain DSCP marking indication information sent by the third network element 103.

[0465] In some embodiments, the DSCP information may be sent by the third network element 103 to the access network device 105. Accordingly, the access network device 105 may obtain the DSCP information. For example, the access network device 105 may receive the DSCP information sent by the third network element 10. That is, the access network device 105 may obtain the DSCP information from the third network element 10, so that the access network device 105 can execute the QoS profile corresponding to the relevant DSCP based on the DSCP information.

[0466] The optional implementation of step S7101 can refer to the optional implementation of step S2106 in Figure 2 and other related parts of the embodiment involved in Figure 2, which will not be repeated here. Step S7102: Obtain indication information sent by the third network element 103.

[0467] The optional implementation of step S7102 can refer to the optional implementation of step S2108 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0468] Step S7103: Obtain DSCP information for downlink packets of the PDU set on the first channel in the transport network; the DSCP information is determined by the fourth network element based on the PDU set information and / or the QoS characteristics of the PDU set. For optional implementations, see the optional implementation of step S2113 in FIG. 2 and other related portions of the embodiment involved in FIG. 2 , which will not be further described here.

[0469] In some embodiments, step S7102, step S7102 and step S7103 may be executed in an interchanged order or simultaneously.

[0470] Step S7104: Based on the PDU set information and / or the PDU set QoS characteristics, a QoS profile corresponding to the DSCP marking indication information and / or the DSCP information is implemented.

[0471] The optional implementation of step S7104 can refer to the optional implementation of step S2114 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0472] Step S7105: Based on the acquired DSCP marking indication information and DSCP information, the previously stored DSCP marking indication information and / or DSCP information is updated.

[0473] The optional implementation of step S7105 can refer to the optional implementation of step S2115 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0474] FIG7B is a flow chart of an information processing method according to an embodiment of the present disclosure. As shown in FIG7A , the embodiment of the present disclosure relates to an information processing method, which can be executed by the access network device 105 and can include but is not limited to the following steps.

[0475] Step S7201: Obtain DSCP marking indication information, where the DSCP marking indication information indicates PDU set information and / or PDU set QoS characteristics for performing DSCP marking on an outer IP header of a downlink packet of the PDU set.

[0476] The optional implementation of step S7201 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0477] In some embodiments, the access network device 105 obtains DSCP information for downlink packets of a PDU set on a first channel in the transport network; the DSCP information is determined by a fourth network element based on the PDU set information and / or the QoS characteristics of the PDU set. For alternative implementations, see the alternative implementations of step S2113 in FIG. 2 and other related portions of the embodiments involved in FIG. 2 , which will not be further described here.

[0478] In some embodiments, the access network device 105 implements a QoS profile corresponding to the DSCP marking indication information and / or the DSCP information. In some embodiments, the access network device 105 receives indication information sent by a third network element, the indication information indicating support for DSCP marking on the outer IP header of downlink packets of the PDU set based on the PDU set information and / or the PDU set QoS characteristics; and implements the QoS profile corresponding to the DSCP marking indication information and / or the DSCP information based on the PDU set information and / or the PDU set QoS characteristics. For optional implementations, see the optional implementations of step S2114 in FIG. 2 and other related portions of the embodiments involved in FIG. 2 , which will not be further described here.

[0479] In some embodiments, the access network device 105 updates the previously stored DSCP marking indication information and / or DSCP information based on the acquired DSCP marking indication information and DSCP information. For optional implementations, see the optional implementation of step S2115 in FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0480] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0481] In some embodiments, the PDU set quality of service (QoS) characteristics include at least one of the following: a PDU set delay budget; a PDU set error rate; and PDU set comprehensive processing information.

[0482] The information processing method provided in the embodiments of the present disclosure may be applied to a core network device, which may include a second network element, a third network element, and a fourth network element. Optionally, the first network element may be included in the core network device, or the core network device may not include the first network element. The above method includes but is not limited to the following steps S8101 to S8107.

[0483] Step S8101, the first network element sends first information to the second network element; wherein the first information includes DSCP marking indication information, the DSCP marking indication information indicates PDU set information and / or PDU set QoS characteristics for performing DSCP marking on the outer IP header of the downlink packet of the PDU set.

[0484] The optional implementation of step S8101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0485] Step S8102: The second network element obtains the first information sent by the first network element.

[0486] The optional implementation of step S8102 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0487] Step S8103: The second network element generates a PCC rule based on the first information.

[0488] The optional implementation of step S8103 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0489] Step S8104: The second network element sends the PCC rule to the third network element.

[0490] The optional implementation of step S8104 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0491] Step S8105: The third network element determines DSCP marking indication information based on the PCC rule.

[0492] The optional implementation of step S8105 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0493] Step S8106: The third network element sends DSCP marking indication information to the fourth network element and / or the access network device.

[0494] The optional implementation of step S8106 can refer to the optional implementation of step S2105 and step S2106 in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0495] Step S8107: The fourth network element obtains the DSCP marking indication information sent by the third network element.

[0496] The optional implementation of step S8107 can refer to the optional implementation of step S2105 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0497] The information processing method provided in the embodiments of the present disclosure can be applied to core network elements. The method may include but is not limited to the following steps S8201 to S8204.

[0498] Step S8201, obtain first information sent by the first network element; wherein the first information includes DSCP marking indication information, the DSCP marking indication information indicates PDU set information and / or PDU set QoS characteristics for DSCP marking on the outer IP header of the downlink packet of the PDU set.

[0499] The optional implementation of step S8201 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0500] Step S8202: Generate PCC rules based on the first information.

[0501] The optional implementation of step S8202 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0502] Step S8203: Determine DSCP marking indication information based on the PCC rule.

[0503] The optional implementation of step S8203 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0504] Step S8204: Send DSCP marking indication information to the access network device.

[0505] The optional implementation of step S8204 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0506] The information processing method provided by the embodiment of the present disclosure and the method involved in the embodiment of the present disclosure can be applied to the communication system 100. The above method includes but is not limited to the following steps S901 to S908.

[0507] Step S901, the first network element sends first information to the second network element; wherein the first information includes DSCP marking indication information, the DSCP marking indication information indicates PDU set information and / or PDU set QoS characteristics for DSCP marking on the outer IP header of the downlink packet of the PDU set.

[0508] The optional implementation of step S901 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0509] Step S902: The second network element obtains the first information sent by the first network element.

[0510] The optional implementation of step S902 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0511] Step S903: The second network element generates a PCC rule based on the first information.

[0512] The optional implementation of step S903 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0513] Step S904: The second network element sends the PCC rule to the third network element.

[0514] The optional implementation of step S904 can refer to the optional implementation of step S2103 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

[0515] Step S905: The third network element determines DSCP marking indication information based on the PCC rule.

[0516] The optional implementation of step S905 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0517] Step S906: The third network element sends DSCP marking indication information to the fourth network element and the access network device.

[0518] The optional implementation of step S906 can refer to the optional implementation of step S2105 and step S2106 in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0519] Step S907: The fourth network element obtains the DSCP marking indication information sent by the third network element.

[0520] The optional implementation of step S907 can refer to the optional implementation of step S2105 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0521] Step S908: The access network device obtains the DSCP marking indication information sent by the third network element.

[0522] The optional implementation of step S908 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0523] In some embodiments, the above method may include the method described in the above embodiments of the first network element side, the second network element side, the third network element side, the fourth network element side, the access network device side, etc., which will not be repeated here.

[0524] The present disclosure optimizes transport layer resource scheduling and configuration by considering PDU set information and / or PDU set QoS characteristics, thereby more effectively ensuring end-to-end QoS requirements, better adapting resource requirements and allocation, and coordinating end-to-end QoS resources. Two application scenarios are provided below to illustrate the implementation of optimizing transport layer resource scheduling and configuration by considering PDU set information and / or PDU set QoS characteristics.

[0525] As shown in FIG8A , the DSCP marking indication process may include but is not limited to the following steps.

[0526] In step S11, the AF sends an AF session resource creation or update request, such as Nnef_AFsessionWithQoS_Create request / Nnef_AFsessionWithQoS_update request, to create or update the AF session. The AF may use the Nnef_AFsessionWithQoS_Create request message or the Nnef-AFsessionWithQoS_Update request message to provide a DSCP marking indication (also referred to as DSCP marking indication information).

[0527] In some embodiments, the DSCP marking indication information indicates that the PDU set information and / or the PDU set QoS characteristics can be used to perform DSCP marking on the outer header of the downlink packet of the PDU set on N3 / N9 in the transport network, that is, to implement differentiated processing of the transport packets carrying the PDU set within the QoS flow.

[0528] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0529] In some embodiments, the PDU set quality of service (QoS) characteristics include at least one of the following: a PDU set delay budget; a PDU set error rate; and PDU set comprehensive processing information.

[0530] In some embodiments, the AF provides a DSCP marking indication to the 5GC for PCC determination, e.g., used for the determination of a transport level packet marking value, such as the DSCP value of the outer IP header.

[0531] In some embodiments, the request sent by the AF (also referred to as an AF request) may also carry XRM service information, identifying the XRM service data flow or data flow group (e.g., a multi-modal service ID), terminal address (UE address) and / or terminal identification (UE Identifier) ​​information, AF Identifier Application ID (AF application identification information), Flow description(s) (flow description), DNN, S-NSSAI, QoS parameters (QoS parameters), and other corresponding information. Here, the multi-modal service ID can be used to identify all data flows in the XRM service group (XRM service group).

[0532] In step S12, the NEF authorizes the AF request. If the AF is an untrusted AF, the AF request is sent to the PCF via the NEF. Optionally, the NEF performs relevant mappings, including mapping the XRM service identifier (AF-Service-Identifier) ​​to the DNN and S-NSSAI, mapping external applications to CN application identifiers; and mapping external UE identifiers to CN internal UE identifiers (such as SUPI) based on UDM subscription information, as well as mapping external to internal XRM service group identifiers based on UDM subscription information.

[0533] In step S13, the NEF authorizes the AF request and, based on the parameters provided by the AF, determines whether to invoke the TSCTSF or contact the PCF directly. (These signaling steps are used to establish the AF session with the required QoS procedures.) The PCF receives the AF-provided attributes from the NEF or TSCTSF. The NEF triggers an Npcf_PolicyAuthorization_Create request, sending the AF request to the PCF with the DSCP marking indication and QoS requirement information for the PCF to implement its policy decision.

[0534] In step S14, the PCF makes a policy decision and may determine that updated or new policy information needs to be sent to the SMF.

[0535] In some embodiments, the PCF considers the DSCP marking indication information to determine the PCC rules and sends them to the SMF. In addition, the DSCP marking indication information can be sent to the SMF in the PCC rules.

[0536] Step S15: PCF responds to NEF with Npcf_Policy Authorization_Create Response (policy authorization creation response).

[0537] Step S16: NEF sends an Nnef_AFsessionWithQoS_Create (AF session resource creation) response message to AF, which may carry a result (Result) to inform whether the request is authorized.

[0538] Step S17: The PCF initiates an SM Policy Association Modification Request to the SMF. The SM Policy Association Modification Request may be an Npcf_SMPolicyControl_UpdateNotify request.

[0539] In some embodiments, upon receiving the PCC rule, the SMF determines the QoS rule and QoS set parameters to configure / activate the PCC rule to the UPF. For example, via an N4 session, the SMF may establish an N4 session with the UPF and configure and / or activate the PCC rule to the UPF through the N4 session.

[0540] In some embodiments, the SMF will provide DSCP marking indication information to the UPF to indicate the DSCP marking taking into account the PDU set information and / or PDU set QoS characteristics.

[0541] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0542] In some embodiments, the PDU set quality of service (QoS) characteristics include at least one of the following: a PDU set delay budget; a PDU set error rate; and PDU set comprehensive processing information.

[0543] In some embodiments, the SMF will provide DSCP marking indication information to the UPF and NG-RAN to indicate the DSCP marking taking into account the PDU set information and / or PDU set QoS characteristics.

[0544] In some embodiments, the SMF will provide a DSCP marking indication to the UPF and / or NG-RAN to indicate QoS implementation (also referred to as QoS execution).

[0545] In some embodiments, the SMF derives the QoS parameters for a QoS Flow based on the PCC rule information of the PCC rule(s) bound to this QoS Flow.

[0546] Step S18: The SMF replies to the PCF with an SM policy association modification response (Npcf_SMPolicyControl_UpdateNotify Response).

[0547] In step S19, the SMF triggers the PDU session modification process and provides the QoS profile to the UPF and / or NG-RAN.

[0548] In some embodiments, the UPF will take into account the PDU set information and / or PDU set QoS characteristics and enforce DSCP marking on the outer header of the downlink packet of the PDU set on N3 / N9 in the transport network (i.e., implement differentiated treatment of transport packets carrying PDU sets within a QoS flow). In addition, the UPF is a PSA UPF.

[0549] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0550] In some embodiments, the PDU set quality of service (QoS) characteristics include at least one of the following: a PDU set delay budget; a PDU set error rate; and PDU set comprehensive processing information.

[0551] In some embodiments, the NG-RAN enforces the QoS profile corresponding to the related DSCP, i.e. used the DSCP indication or DSCP information considering the PDU set information and / or PDU set QoS characteristics for the transport resource allocation.

[0552] In some embodiments, if the SMF provides DSCP indication or DSCP information considering the PDU set information and / or PDU set QoS characteristics to the NG-RAN, the NG-RAN will replace the previously stored DSCP indication or DSCP information with it.

[0553] As shown in FIG8B , an AF session (carrying DSCP marking indication information) is created using the required QoS process. The process may include but is not limited to the following steps.

[0554] In step 21, the AF sends an AF session resource request, for example, by using Nnef_AFsessionWithQoS_Create request, to create an AF request. The AF carries the QoS requirements of the XRM service and interactive media service data flows in the request message.

[0555] Optionally, in some embodiments, the request sent by the AF (also referred to as an AF request) may also carry XRM service information, identifying the XRM service data flow or data flow group (e.g., multi-modal service ID), terminal address (UE address) and / or terminal identification (UE Identifier) ​​information, AF Identifier Application ID (AF application identification information), Flow description(s) (flow description), DNN, S-NSSAI, QoS parameters (QoS parameters), and other corresponding information. Here, the multi-modal service ID can be used to identify all data flows in the XRM service group (XRM service group).

[0556] In some embodiments, the AF may use an AF session resource request to provide a DSCP marking indication (also referred to as DSCP marking indication information).

[0557] In some embodiments, the DSCP marking indication information indicates that the PDU set information and / or the PDU set QoS characteristics can be used to perform DSCP marking on the outer header of the downlink packet of the PDU set on N3 / N9 in the transport network, that is, to implement differentiated processing of the transport packets carrying the PDU set within the QoS flow.

[0558] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; an indication of the end PDU of the PDU set; a PDU sequence number in the PDU set; a PDU set size; and a PDU set importance, used to identify the relative importance of the PDU set compared to other PDU sets in the QoS flow.

[0559] In some embodiments, the PDU set quality of service (QoS) characteristics include at least one of the following: a PDU set delay budget; a PDU set error rate; and PDU set comprehensive processing information.

[0560] In some embodiments, the AF provides a DSCP marking indication to the 5GC for PCC determination, e.g., used for the determination of a transport level packet marking value, such as the DSCP value of the outer IP header.

[0561] In step S22, the NEF authorizes the AF request. If the AF is an untrusted AF, the AF request is sent to the PCF via the NEF. Optionally, the NEF performs relevant mappings, including mapping the XRM service identifier (AF-Service-Identifier) ​​to the DNN and S-NSSAI, mapping external applications to CN application identifiers; and mapping external UE identifiers to CN internal UE identifiers (such as SUPI) based on UDM subscription information, as well as mapping external to internal XRM service group identifiers based on UDM subscription information.

[0562] In step S23, the NEF authorizes the AF request and determines whether to call the TSCTSF or contact the PCF directly based on the parameters provided by the AF. (These signaling steps are used to establish the AF session through the required QoS procedures.) The PCF receives the AF-provided attributes from the NEF or TSCTSF.

[0563] In step S24, the PCF makes a policy decision and may determine that updated or new policy information needs to be sent to the SMF.

[0564] In some embodiments, the PCF considers the DSCP marking indication information to determine the PCC rules and sends them to the SMF. In addition, the DSCP marking indication information can be sent to the SMF in the PCC rules.

[0565] In step S25 , the PCF responds to the NEF with an Npcf_Policy Authorization_Create response.

[0566] Step S26: The NEF sends an Nnef_AFsessionWithQoS_Create response message to the AF, which may carry a result to inform whether the request is authorized.

[0567] Step S27: The PCF initiates an SM Policy Association Modification Request to the SMF. The SM Policy Association Modification Request may be an Npcf_SMPolicyControl_UpdateNotify request.

[0568] In some embodiments, upon receiving the PCC rule, the SMF determines the QoS rule and QoS set parameters to configure / activate the PCC rule to the UPF. For example, via an N4 session, the SMF may establish an N4 session with the UPF and configure and / or activate the PCC rule to the UPF through the N4 session.

[0569] In some embodiments, the SMF will provide DSCP marking indication information to the UPF to indicate the DSCP marking taking into account the PDU set information and / or PDU set QoS characteristics.

[0570] In some embodiments, the SMF will provide DSCP marking indication information to the UPF and NG-RAN to indicate the DSCP marking taking into account the PDU set information and / or PDU set QoS characteristics.

[0571] In some embodiments, the SMF will provide a DSCP marking indication to the UPF and / or NG-RAN to indicate QoS implementation (also referred to as QoS execution).

[0572] In some embodiments, the SMF derives the QoS parameters of the QoS flow based on the PCC rule information of the PCC rule bound to the QoS flow.

[0573] Step S28: The SMF sends an SM policy association modification response (Npcf_SMPolicyControl_UpdateNotify Response) to the PCF.

[0574] In step S29, the SMF initiates an N4 session modification request to the UPF. Exemplarily, the N4 session modification request may include DSCP marking indication information.

[0575] Step S210: The UPF(s) responds to the SMF. Exemplarily, the UPF sends an N4 Session Modification Response to the SMF.

[0576] Step S211, for the modification requested by the SMF, the SMF calls Namf_Communication_N1N2MessageTransfer (N2 SM information), including PDU session ID, QFI (QoS Flow ID, Quality of Service Flow Identifier), QoS profile, N1 SM container (N1 SM container), and illustratively, may also include DSCP marking indication information.

[0577] In step S212, the AMF may send an N2 message (e.g., an N2 PDU session request) to the (R)AN. Exemplarily, the N2 message may include the N2SM information received from the SMF and a NAS message. Exemplarily, the NAS message may include a PDU session ID and an N1 SM container (e.g., a PDU session modification command). Exemplarily, the N2 message may also carry DSCP marking indication information.

[0578] Step S213: resource setup. Exemplarily, step S213 is optional.

[0579] In step S214, the (R)AN may confirm the N2PDU session request by sending an N2PDU session confirm message to the AMF.

[0580] In step S215, the AMF forwards the N2 SM information received from the (R)AN to the SMF through the Nsmf_PDUSession_UpdateSMContext (PDU session update SM context) service operation. Exemplarily, the AMF sends an Nsmf_PDUSession_UpdateSMContext request to the SMF to forward the N2 SM information received from the (R)AN to the SMF.

[0581] In step S216, the SMF replies with a Nsmf_PDUSession_UpdateSMContext Response.

[0582] In steps S217-S218, the SMF can update the N4 session of the UPF involved in the PDU session modification by sending an N4 session modification request message to the UPF.

[0583] The embodiments of the present disclosure also provide apparatuses for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing each step performed by a first terminal in any of the above methods. For another example, another apparatus is provided that includes units or modules for implementing each step performed by a second terminal in any of the above methods.

[0584] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0585] In the embodiments of the present disclosure, the processor is a circuit with information processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0586] Figure 9A is a schematic structural diagram of the first network element proposed in an embodiment of the present disclosure. As shown in Figure 9A, the first network element 9100 may include: at least one of a transceiver module 9101, a processing module 9102, etc. In some embodiments, the transceiver module is used to send first information to the second network element; wherein the first information includes Differentiated Services Code Point (DSCP) marking indication information, and the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on the outer Internet Protocol (IP) header of the downlink packet of the PDU set. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (such as step S2101, but not limited thereto) executed by the first network element 101 in any of the above methods, which will not be repeated here. Optionally, the processing module is used to execute at least one of the other steps executed by the first network element 101 in any of the above methods, which will not be repeated here.

[0587] The embodiment of the present disclosure proposes a second network element. The second network element may include: at least one of a transceiver module, a processing module, etc. In some embodiments, the transceiver module is used to obtain first information sent by the first network element; wherein the first information includes Differentiated Services Code Point (DSCP) marking indication information, and the DSCP marking indication information indicates the protocol data unit (PDU) set information and / or the PDU set quality of service (QoS) characteristics for performing DSCP marking on the external Internet Protocol (IP) header of the downlink packet of the PDU set. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2103, but not limited thereto) executed by the second network element 102 in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module is used to execute at least one of the other steps (for example, step S2102, but not limited thereto) executed by the second network element 102 in any of the above methods, which will not be repeated here.

[0588] The embodiment of the present disclosure proposes a third network element. The third network element may include: at least one of a transceiver module, a processing module, etc. In some embodiments, the transceiver module is used to receive policy and charging control PCC rules; the processing module is used to determine the Differentiated Services Code Point (DSCP) marking indication information based on the PCC rules; the DSCP marking indication information indicates the protocol data unit (PDU) set information and / or the PDU set quality of service (QoS) characteristics for performing DSCP marking on the external Internet Protocol (IP) header of the downlink packet of the PDU set; the transceiver module is also used to send the DSCP marking indication information to the fourth network element and / or the access network device. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2105, step S2106, step S2107, step S2108, step S2113, but not limited thereto) executed by the third network element 103 in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module is used to execute at least one of the other steps (such as step S2104 and step S2109, but not limited to these) performed by the third network element 103 in any of the above methods, which will not be repeated here.

[0589] The embodiment of the present disclosure proposes a fourth network element. The fourth network element may include: at least one of a transceiver module, a processing module, etc. In some embodiments, the transceiver module is used to obtain Differentiated Services Code Point (DSCP) marking indication information, and the DSCP marking indication information indicates the protocol data unit (PDU) set information and / or the PDU set quality of service (QoS) characteristics for performing DSCP marking on the external Internet Protocol (IP) header of the downlink packet of the PDU set. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2112, but not limited thereto) executed by the fourth network element 104 in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module is used to execute at least one of the other steps (for example, step S2110, step S2111, but not limited thereto) executed by the fourth network element 104 in any of the above methods, which will not be repeated here.

[0590] The embodiments of the present disclosure propose an access network device. The access network device may include: at least one of a transceiver module, a processing module, etc. In some embodiments, the transceiver module is used to obtain Differentiated Services Code Point (DSCP) marking indication information, and the DSCP marking indication information indicates the protocol data unit (PDU) set information and / or the PDU set quality of service (QoS) characteristics for DSCP marking on the external Internet Protocol (IP) header of the downlink packet of the PDU set. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving executed by the access network device 105 in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module is used to execute at least one of the other steps (such as step S2114, step S2115, but not limited to this) executed by the access network device 105 in any of the above methods, which will not be repeated here.

[0591] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0592] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0593] Figure 10A is a schematic diagram of the structure of a communication device 10100 proposed in an embodiment of the present disclosure. Communication device 10100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 10100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0594] As shown in Figure 10A, the communication device 10100 includes one or more processors 10101. The processor 10101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 10100 is used to perform any of the above methods. Optionally, one or more processors 10101 are used to call instructions to enable the communication device 10100 to perform any of the above methods.

[0595] In some embodiments, the communication device 10100 further includes one or more transceivers 10102. When the communication device 10100 includes one or more transceivers 10102, the transceiver 10102 performs at least one of the communication steps of sending and / or receiving in the above method (e.g., steps S2101, S2103, steps S2105 to S2108, S2112, and S2113, but not limited thereto), and the processor 10101 performs at least one of the other steps (e.g., steps S2102, S2104, steps S2109 to S2111, S2114, and S2115, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, terms such as transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface can be replaced with each other, terms such as transmitter, transmitting unit, transmitter, and transmitting circuit can be replaced with each other, and terms such as receiver, receiving unit, receiver, and receiving circuit can be replaced with each other.

[0596] In some embodiments, the communication device 10100 further includes one or more memories 10103 for storing data. Alternatively, all or part of the memories 10103 may be located outside the communication device 10100. In alternative embodiments, the communication device 10100 may include one or more interface circuits 10104. Optionally, the interface circuits 10104 are connected to the memory 10102 and may be configured to receive data from the memory 10102 or other devices, or to send data to the memory 10102 or other devices. For example, the interface circuits 10104 may read data stored in the memory 10102 and send the data to the processor 10101.

[0597] The communication device 10100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 10100 described in the present disclosure is not limited thereto, and the structure of the communication device 10100 may not be limited by FIG. 10A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0598] 10B is a schematic diagram of the structure of a chip 10200 according to an embodiment of the present disclosure. If the communication device 10100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 10200 shown in FIG10B , but the present disclosure is not limited thereto.

[0599] The chip 10200 includes one or more processors 10201. The chip 10200 is configured to execute any of the above methods.

[0600] In some embodiments, chip 10200 further includes one or more interface circuits 10202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 10200 further includes one or more memories 10203 for storing data. Alternatively, all or part of memory 10203 may be located external to chip 10200. Optionally, interface circuit 10202 is connected to memory 10203 and may be configured to receive data from memory 10203 or other devices, or to send data to memory 10203 or other devices. For example, interface circuit 10202 may read data stored in memory 10203 and send the data to processor 10201.

[0601] In some embodiments, the interface circuit 10202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method (e.g., steps S2101, S2103, steps S2105 to S2108, step S2112, and step S2113, but not limited thereto). The interface circuit 10202 performing the communication steps, such as sending and / or receiving, in the above-described method, for example, means that the interface circuit 10202 performs data exchange between the processor 10201, the chip 10200, the memory 10203, or the transceiver device. In some embodiments, the processor 10201 performs at least one of the other steps (e.g., steps S2102, S2104, steps S2109 to S2111, step S2114, and step S2115, but not limited thereto).

[0602] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the communication device 10100, the communication device 10100 is caused to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0603] The present disclosure also provides a program product, which, when executed by the communication device 10100, enables the communication device 10100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0604] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

[0605] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program 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 program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0606] 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. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0607] Those skilled in the art will 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.

[0608] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. An information processing method, characterized in that: The method is performed by a first network element, and the method includes: Sending first information to a second network element; wherein the first information includes differentiated services code point (DSCP) marking indication information, and the DSCP marking indication information indicates protocol data unit (PDU) set information and / or PDU set quality of service (QoS) characteristics for performing DSCP marking on an external Internet Protocol (IP) header of a downlink packet of the PDU set.

2. The method according to claim 1, characterized in that The DSCP marking indication information is used for policy and charging control PCC decision.

3. The method according to claim 1 or 2, characterized in that The sending the first information to the second network element includes: Sending the first information to the second network element based on an application function AF session resource creation request message; or, Based on the AF session resource update request message, the first information is sent to the second network element.

4. The method according to any one of claims 1 to 3, characterized in that The PDU set information includes at least one of the following: PDU set sequence number; Indication of the end PDU of a PDU set; The PDU sequence number in the PDU set; PDU set size; PDU set importance, used to identify the relative importance of a PDU set compared to other PDU sets in a QoS flow.

5. The method according to any one of claims 1 to 4, characterized in that The PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU contains comprehensive processing information.

6. The method according to claim 1, characterized in that The sending the first information to the second network element includes: The first network element sends the first information to the second network element via a network open function NEF; or, The first network element sends the first information to the second network element via a time-sensitive communication time synchronization function TSCTSF.

7. The method according to any one of claims 1 to 6, characterized in that The first information also includes at least one of the following: Extended reality media XRM business information; Identification information of an XRM service data flow or data flow group; Terminal address and / or terminal identification information; The first network element application identification information; Description information of the XRM service data flow; Data network name DNN; Single Network Slice Selection Assistance Information S-NSSAI; QoS parameters of the XRM service data flow.

8. An information processing method, characterized in that: The method is performed by a second network element, and the method includes: Obtain first information sent by a first network element; wherein the first information includes differentiated service code point DSCP marking indication information, and the DSCP marking indication information indicates protocol data unit PDU set information and / or PDU set quality of service QoS characteristics for performing DSCP marking on an external Internet Protocol IP header of a downlink packet of the PDU set.

9. The method according to claim 8, characterized in that The obtaining of the first information sent by the first network element includes any one of the following: The second network element obtains the first information sent by the first network element from a network open function NEF; The second network element obtains the first information sent by the first network element from a time-sensitive communication time synchronization function TSCTSF.

10. The method according to claim 8 or 9, characterized in that The PDU set information includes at least one of the following: PDU set sequence number; Indication of the end PDU of a PDU set; The PDU sequence number in the PDU set; PDU set size; PDU set importance, used to identify the relative importance of a PDU set compared to other PDU sets in a QoS flow.

11. The method according to any one of claims 8 to 10, characterized in that: The PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU contains comprehensive processing information.

12. The method according to any one of claims 8 to 11, characterized in that The first information also includes at least one of the following: Extended reality media XRM business information; Identification information of an XRM service data flow or data flow group; Terminal address and / or terminal identification information; The first network element application identification information; Description information of the XRM service data flow; Data network name DNN; Single Network Slice Selection Assistance Information S-NSSAI; QoS parameters of the XRM service data flow.

13. The method according to any one of claims 8 to 12, characterized in that The method further comprises: Based on the first information, generate a policy and charging control PCC rule; The PCC rule is sent to a third network element.

14. The method according to claim 13, characterized in that The generating a policy and charging control PCC rule based on the first information includes: A PCC rule is generated based on the DSCP marking indication information.

15. The method according to claim 13 or 14, characterized in that The PCC rule includes the DSCP marking indication information.

16. An information processing method, characterized in that: The method is performed by a third network element, and the method includes: Receive policy and charging control PCC rules; Determine, based on the PCC rule, differentiated services code point DSCP marking indication information; the DSCP marking indication information indicates protocol data unit PDU set information and / or PDU set quality of service QoS characteristics for performing DSCP marking on an outer Internet Protocol IP header of a downlink packet of the PDU set; The DSCP marking indication information is sent to the fourth network element and / or the access network device.

17. The method according to claim 16, characterized in that The PDU set information includes at least one of the following: PDU set sequence number; Indication of the end PDU of a PDU set; The PDU sequence number in the PDU set; PDU set size; PDU set importance, used to identify the relative importance of a PDU set compared to other PDU sets in a QoS flow.

18. The method according to claim 16 or 17, characterized in that The PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU contains comprehensive processing information.

19. The method according to any one of claims 16 to 18, characterized in that The method further comprises: Send indication information to the fourth network element and / or the access network device, wherein the indication information indicates the ability to support DSCP marking on the external IP header of the downlink packet of the PDU set based on the PDU set information and / or the QoS characteristics of the PDU set.

20. The method of claim 16, wherein: The method further comprises: Determine a QoS rule and a QoS set parameter, wherein the QoS rule and the QoS set parameter are used to configure and / or activate the PCC rule for the fourth network element.

21. The method of claim 20, wherein: The determining of QoS rules and QoS set parameters includes: Based on the PCC rule information of the PCC rule bound to the QoS flow, a QoS parameter of the QoS flow is obtained.

22. The method according to any one of claims 16 to 21, characterized in that The method further comprises: Obtaining DSCP information of downlink packets of a PDU set on a first channel in the transmission network; the DSCP information is determined by the fourth network element based on the PDU set information and / or the PDU set QoS characteristics.

23. The method of claim 22, wherein: The method further comprises: The DSCP information is sent to the access network device.

24. An information processing method, characterized in that: The method is performed by a fourth network element, and the method includes: Differentiated Services Code Point (DSCP) marking indication information is obtained, where the DSCP marking indication information indicates protocol data unit (PDU) set information and / or a PDU set quality of service (QoS) characteristic for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

25. The method of claim 24, wherein: The PDU set information includes at least one of the following: PDU set sequence number; Indication of the end PDU of a PDU set; The PDU sequence number in the PDU set; PDU set size; PDU set importance, used to identify the relative importance of a PDU set compared to other PDU sets in a QoS flow.

26. The method according to claim 24 or 25, characterized in that The PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU contains comprehensive processing information.

27. The method according to any one of claims 24 to 26, characterized in that The method further comprises: receiving indication information sent by a third network element, the indication information indicating a capability of supporting DSCP marking on an outer IP header of a downlink packet of a PDU set based on the PDU set information and / or the QoS characteristics of the PDU set; Based on the PDU set information and / or the PDU set QoS characteristics, a DSCP marking is performed on the outer IP header of the downlink packet of the PDU set on the first channel in the transmission network.

28. The method of claim 27, wherein: The performing of DSCP marking on the outer IP header of the downlink packet of the PDU set on the first channel in the transmission network based on the PDU set information and / or the PDU set QoS characteristics comprises: Determine the PDU set on the first channel in the transmission network based on the PDU set information and / or the PDU set QoS characteristics. DSCP information of downlink packets; Based on the DSCP information, a DSCP mark is performed on the outer IP header of the corresponding downlink packet.

29. The method of claim 28, wherein: The method further comprises: The DSCP information is sent to the third network element.

30. The method according to any one of claims 24 to 29, characterized in that The fourth network element is a user plane function UPF, and the UPF is a PDU session anchor point PSA-UPF.

31. An information processing method, characterized in that: The method is performed by an access network device, and the method includes: Differentiated Services Code Point (DSCP) marking indication information is obtained, where the DSCP marking indication information indicates protocol data unit (PDU) set information and / or a PDU set quality of service (QoS) characteristic for performing DSCP marking on an outer Internet Protocol (IP) header of a downlink packet of the PDU set.

32. The method of claim 31, wherein: The method further comprises: Obtaining DSCP information of downlink packets of a PDU set on a first channel in the transmission network; the DSCP information is determined by the fourth network element based on the PDU set information and / or the PDU set QoS characteristics.

33. The method of claim 32, wherein: The method further comprises: A QoS profile corresponding to the DSCP marking indication information and / or the DSCP information is implemented.

34. The method of claim 33, wherein: The implementing a QoS profile corresponding to the DSCP marking indication information and / or the DSCP information includes: receiving indication information sent by a third network element, the indication information indicating a capability of supporting DSCP marking on an outer IP header of a downlink packet of a PDU set based on the PDU set information and / or the QoS characteristics of the PDU set; Based on the PDU set information and / or the PDU set QoS characteristics, a QoS profile corresponding to the DSCP marking indication information and / or the DSCP information is implemented.

35. The method according to any one of claims 32 to 34, characterized in that The method further comprises: Based on the acquired DSCP marking indication information and the DSCP information, previously stored DSCP marking indication information and / or DSCP information is updated.

36. The method according to any one of claims 31 to 35, characterized in that The PDU set information includes at least one of the following: PDU set sequence number; Indication of the end PDU of a PDU set; The PDU sequence number in the PDU set; PDU set size; PDU set importance, used to identify the relative importance of a PDU set compared to other PDU sets in a QoS flow.

37. The method according to any one of claims 31 to 36, characterized in that The PDU set quality of service QoS characteristics include at least one of the following: PDU set delay budget; PDU set error rate; PDU contains comprehensive processing information.

38. An information processing method, characterized in that: include: The first network element sends first information to the second network element; wherein the first information includes differentiated service code point DSCP marking indication information, and the DSCP marking indication information indicates protocol data unit PDU set information and / or PDU set quality of service QoS characteristics for performing DSCP marking on the outer Internet Protocol IP header of the downlink packet of the PDU set; The second network element obtains first information sent by the first network element; The second network element generates a policy and charging control PCC rule based on the first information; The second network element sends the PCC rule to a third network element; The third network element determines the DSCP marking indication information based on the PCC rule; The third network element sends the DSCP marking indication information to the fourth network element and / or the access network device; The fourth network element obtains the DSCP marking indication information sent by the third network element.

39. An information processing method, characterized in that: include: The first network element sends first information to the second network element; wherein the first information includes differentiated service code point DSCP marking indication information, and the DSCP marking indication information indicates protocol data unit PDU set information and / or PDU set quality of service QoS characteristics for performing DSCP marking on the outer Internet Protocol IP header of the downlink packet of the PDU set; The second network element obtains first information sent by the first network element; The second network element generates a policy and charging control PCC rule based on the first information; The second network element sends the PCC rule to a third network element; The third network element determines the DSCP marking indication information based on the PCC rule; The third network element sends the DSCP marking indication information to the fourth network element and the access network device; The fourth network element obtains the DSCP marking indication information sent by the third network element; The access network device obtains the DSCP marking indication information sent by the third network element.

40. An information processing method, characterized in that: The method is performed by a core network element, and the method includes: Acquire first information sent by the first network element; wherein the first information includes differentiated service code point DSCP marking indication information, and the DSCP marking indication information indicates protocol data unit PDU set information and / or PDU set quality of service QoS characteristics for performing DSCP marking on an outer Internet Protocol IP header of a downlink packet of the PDU set; Based on the first information, generate a policy and charging control PCC rule; Determine the DSCP marking indication information based on the PCC rule; The DSCP marking indication information is sent to the access network device.

41. A first network element, characterized in that: include: A transceiver module is used to send first information to a second network element; wherein the first information includes differentiated service code point DSCP marking indication information, and the DSCP marking indication information indicates protocol data unit PDU set information and / or PDU set quality of service QoS characteristics for performing DSCP marking on an external Internet Protocol IP header of a downlink packet of the PDU set.

42. A second network element, characterized in that: include: A transceiver module is used to obtain first information sent by a first network element; wherein the first information includes differentiated service code point DSCP marking indication information, and the DSCP marking indication information indicates protocol data unit PDU set information and / or PDU set quality of service QoS characteristics for performing DSCP marking on an external Internet Protocol IP header of a downlink packet of the PDU set.

43. A third network element, characterized in that: include: The transceiver module is used to receive policy and charging control PCC rules; A processing module, configured to determine differentiated service code point DSCP marking indication information based on the PCC rule; The DSCP marking indication information indicates protocol data unit PDU set information and / or PDU set quality of service QoS characteristics for performing DSCP marking on an outer Internet Protocol IP header of a downlink packet of the PDU set; The transceiver module is further used to send the DSCP marking indication information to the fourth network element and / or access network equipment.

44. A fourth network element, characterized in that: include: The transceiver module is used to obtain differentiated service code point DSCP marking indication information, where the DSCP marking indication information indicates protocol data unit PDU set information and / or PDU set quality of service QoS characteristics for performing DSCP marking on an external Internet Protocol IP header of a downlink packet of the PDU set.

45. An access network device, characterized in that: include: The transceiver module is used to obtain differentiated service code point DSCP marking indication information, where the DSCP marking indication information indicates protocol data unit PDU set information and / or PDU set quality of service QoS characteristics for performing DSCP marking on an external Internet Protocol IP header of a downlink packet of the PDU set.

46. ​​A communication device, characterized in that: include: one or more processors; Wherein, the communication device is used to execute the information processing method described in any one of claims 1-7, 8-15, 16-23, 24-30, 31-37, 38, and 40.

47. A communication system, characterized in that: include: Core network equipment, access network equipment, wherein the core network equipment is configured to implement the information processing method described in any one of claims 1-7, 8-15, 16-23, 24-30, 38, and 40, and the access network equipment is configured to implement the information processing method described in any one of claims 31-37.

48. A storage medium storing instructions, characterized in that: When the instruction is executed on the communication device, the communication device executes the information processing method according to any one of claims 1-7, 8-15, 16-23, 24-30, 31-37, 38, 40-47.

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