Service data stream processing method, network device, communication device, and storage medium

Abstract

The present invention relates to the technical field of communications, and in particular to a service data stream processing method, a network device, a communication device, and a storage medium. The service data stream processing method comprises: determining a differentiated services code point (DSCP) value corresponding to a first PDU set, wherein the first PDU set is a PDU set of a first service data stream, and the first service data stream is a service data stream needing to be subjected to PDU set processing; and marking the DSCP value on a first downlink data packet corresponding to the first PDU set. In this way, the resource scheduling and configuration of a transport layer can be optimized on the basis of a DSCP mark and the characteristics of a PDU set, so as to more effectively guarantee end-to-end QoS requirements, better adapt resource requirements and allocation, and coordinate end-to-end QoS resources.

Description

Business data flow processing method, network device, communication device and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a method for processing service data streams, a network device, a communication device, and a storage medium. Background Art

[0002] Enhancements to the PDU set feature significantly improve the quality of service (QoS) of mobile communication systems for Extended Reality Media (XRM) services. However, optimizing PDU set resources for XRM services remains a challenge.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a method for processing service data streams, a network device, a communication device, and a storage medium to solve the technical problem of optimizing resources for the PDU set of the XRM service in related technologies.

[0005] According to a first aspect of an embodiment of the present disclosure, a method for processing a service data flow is proposed, which is executed by a first network element. The method includes: determining a differentiated services code point (DSCP) value corresponding to a first protocol data unit set (PDU set); wherein the first PDU set is a PDU set of a first service data flow; the first service data flow is a service data flow that requires PDU set processing; and marking the DSCP value on a first downlink data packet corresponding to the first PDU set.

[0006] According to a second aspect of an embodiment of the present disclosure, a method for processing a service data flow is proposed, which is executed by a second network element. The method includes: receiving a first downlink data packet corresponding to a first protocol data unit set PDU set from the first network element, the first downlink data packet carrying a differentiated services code point DSCP value corresponding to the first PDU set; wherein the first PDU set is a PDU set of a first service data flow; the first service data flow is a service data flow that requires PDU set processing; and performing PDU set processing on the first downlink data packet based on the DSCP value.

[0007] According to a third aspect of an embodiment of the present disclosure, a method for processing a service data flow is proposed, which is executed by a third network element. The method includes: sending first indication information for a first service data flow to a first network element, wherein the first indication information is used to indicate to the first network element that the first service data flow needs to be processed by a PDU set, so that the first network element determines a differentiated services code point (DSCP) value corresponding to the first PDU set, marks the DSCP value on a first downlink data packet corresponding to the first PDU set, and sends the marked first downlink data packet to a second network element; wherein the first PDU set is the PDU set of the first service data flow.

[0008] According to a fourth aspect of an embodiment of the present disclosure, a device for processing a service data flow is proposed, the device comprising: a processing module for determining a differentiated services code point (DSCP) value corresponding to a first protocol data unit set (PDU set); wherein the first PDU set is a PDU set of a first service data flow; the first service data flow is a service data flow that requires PDU set processing; and a transceiver module for marking the DSCP value on a first downlink data packet corresponding to the first PDU set.

[0009] According to the fifth aspect of an embodiment of the present disclosure, a device for processing a service data flow is proposed, the device including: a transceiver module, configured to receive a first downlink data packet corresponding to a first protocol data unit set (PDU set) from the first network element, the first downlink data packet carrying a differentiated services code point (DSCP) value corresponding to the first PDU set; wherein the first PDU set is a PDU set of a first service data flow; the first service data flow is a service data flow that requires PDU set processing; and a processing module, configured to perform PDU set processing on the first downlink data packet based on the DSCP value.

[0010] According to the sixth aspect of an embodiment of the present disclosure, a device for processing a service data flow is proposed, the device comprising: a processing module for determining a first service data flow; a transceiver module for sending first indication information for the first service data flow to a first network element, the first indication information being used to indicate to the first network element that the first service data flow needs to be processed by a PDU set, so that the first network element determines a differentiated services code point (DSCP) value corresponding to the first PDU set, marks the DSCP value on a first downlink data packet corresponding to the first PDU set, and sends the marked first downlink data packet to a second network element; wherein the first PDU set is the PDU set of the first service data flow.

[0011] According to the seventh aspect of the embodiment of the present disclosure, a network device is proposed, comprising: one or more processors; wherein the network device is used to execute the service data flow processing method described in the first aspect, second aspect or third aspect above.

[0012] According to the eighth aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a first network element, a second network element and a third network element, wherein the first network element is configured to implement the method for processing the service data flow described in the first aspect, the second network element is configured to implement the method for processing the service data flow described in the second aspect, and the third network element is configured to implement the method for processing the service data flow described in the third aspect.

[0013] According to the ninth aspect of the 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 service data flow processing method described in the first aspect, second aspect or third direction above.

[0014] According to an embodiment of the present disclosure, the UPF determines a DSCP value based on the first information corresponding to the first PDU set, and DSCP-marks the first downlink data packet corresponding to the first PDU set before sending it to the RAN, thereby enabling the RAN to optimize the resource scheduling and configuration of the transport layer based on the DSCP marking and considering the characteristics of the PDU set, more effectively guarantee end-to-end (E2E) QoS requirements, better adapt to resource requirements and allocation, and coordinate E2E QoS resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0017] FIG2 is an interactive schematic diagram showing a method for processing a service data flow according to an embodiment of the present disclosure.

[0018] FIG3A is a schematic flowchart showing a method for processing a service data flow according to an embodiment of the present disclosure.

[0019] FIG3B is a schematic flowchart showing a method for processing a service data flow according to an embodiment of the present disclosure.

[0020] FIG3C is a schematic flowchart illustrating a method for processing a service data flow according to an embodiment of the present disclosure.

[0021] FIG3D is a schematic flowchart illustrating a method for processing a service data flow according to an embodiment of the present disclosure.

[0022] FIG3E is a schematic flowchart of a method for processing a business data flow according to an embodiment of the present disclosure.

[0023] FIG4 is a schematic flowchart showing a method for processing a service data flow according to an embodiment of the present disclosure.

[0024] FIG5 is a schematic flowchart showing a method for processing a service data flow according to an embodiment of the present disclosure.

[0025] FIG6A is a schematic block diagram showing the apparatus structure of a network device according to an embodiment of the present disclosure.

[0026] FIG6B is a schematic block diagram showing the apparatus structure of a network device according to an embodiment of the present disclosure.

[0027] FIG6C is a schematic block diagram showing the apparatus structure of a network device according to an embodiment of the present disclosure.

[0028] FIG7 is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure.

[0029] FIG8 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] The embodiments of the present disclosure provide a method for processing a service data flow, a network device, a communication device, and a storage medium.

[0031] In a first aspect, an embodiment of the present disclosure proposes a method for processing a service data flow, which is executed by a first network element, and the method includes: determining a differentiated services code point (DSCP) value corresponding to a first protocol data unit set (PDU set); wherein the first PDU set is a PDU set of a first service data flow; the first service data flow is a service data flow that requires PDU set processing; and marking the DSCP value on a first downlink data packet corresponding to the first PDU set.

[0032] In the above embodiment, the UPF determines the DSCP value based on the first information corresponding to the first PDU set, and DSCP-marks the first downlink data packet corresponding to the first PDU set before sending it to the RAN, thereby enabling the RAN to optimize the resource scheduling and configuration of the transport layer based on the DSCP marking and considering the characteristics of the PDU set, more effectively guaranteeing the end-to-end (E2E) QoS requirements, better adapting to resource requirements and allocation, and coordinating E2E QoS resources.

[0033] In combination with some embodiments of the first aspect. In some embodiments, determining a differentiated services code point (DSCP) value corresponding to a first protocol data unit set (PDU set) includes: determining a differentiated services code point (DSCP) value corresponding to the first PDU set based on first information corresponding to the first PDU set; wherein the first information includes information related to quality of service (QoS).

[0034] In combination with some embodiments of the first aspect, in some embodiments, the first information includes at least one of the following: protocol description information; PDU set specific QoS features; and PDU set information.

[0035] In combination with some embodiments of the first aspect, in some embodiments, the protocol description information includes at least one of the following: a media type; and codec information.

[0036] In combination with some embodiments of the first aspect, in some embodiments, the PDU set specific QoS feature includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; and PDU set integrated processing information PSIHI.

[0037] 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; a PDU sequence number within the first PDU set; a data size of the PDU Set; a first identifier; the first identifier is used to indicate the last PDU in the first PDU set; a second identifier; the second identifier is used to indicate the relative importance of the first PDU Set to other PDU sets in the corresponding QoS flow.

[0038] In combination with some embodiments of the first aspect, in some embodiments, marking the DSCP value on the first downlink data packet corresponding to the first PDU set includes: marking the DSCP value on an outer header of the first downlink data packet corresponding to the first PDU set.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the first downlink data packet is a downlink data message received from the N3 interface or the N9 interface.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the marked first downlink data packet is sent to a second network element, so that the second network element performs PDU set processing on the first downlink data packet based on the DSCP value.

[0041] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: receiving first indication information for the first service data flow from a third network element, the first indication information being used to indicate to the first network element that the first service data flow requires PDU set processing.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, the first indication information is a DSCP marking indication.

[0043] In combination with some embodiments of the first aspect, in some embodiments, receiving first indication information for the first service data flow from a third network element includes: receiving a QoS execution rule from the third network element, the QoS execution rule including the first indication information for the first service data flow.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the QoS execution rule further includes at least one of the following: an N4 session identifier; a rule identifier; and a QoS flow identifier.

[0045] In combination with some embodiments of the first aspect, in some embodiments, receiving the QoS execution rule from the third network element comprises: receiving the QoS execution rule from the third network element during the establishment process of the N4 session or the modification process of the N4 session.

[0046] In combination with some embodiments of the first aspect, in some embodiments, the QoS execution rule is carried by at least one of the following messages: an N4 association establishment request message; an N4 association establishment response message; an N4 session establishment request message; or an N4 session establishment response message.

[0047] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: receiving second indication information for the first service data flow from a third network element, the second indication information being used to indicate to the first network element that the first service data flow does not require PDU set processing.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the first network element is a user plane function (UPF).

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the second network element is a radio access network RAN.

[0050] In combination with some embodiments of the first aspect, in some embodiments, the third network element is a session management function SMF.

[0051] In the second aspect, an embodiment of the present disclosure proposes a method for processing a service data flow, which is executed by a second network element, and the method includes: receiving a first downlink data packet corresponding to a first protocol data unit set PDU set from the first network element, the first downlink data packet carrying a differentiated services code point DSCP value corresponding to the first PDU set; wherein the first PDU set is a PDU set of a first service data flow; the first service data flow is a service data flow that needs to be processed by PDU set; and performing PDU set processing on the first downlink data packet based on the DSCP value.

[0052] In combination with some embodiments of the second aspect, in some embodiments, the DSCP value is determined by first information corresponding to the first PDU set, where the first information includes information related to quality of service (QoS).

[0053] In combination with some embodiments of the second aspect, in some embodiments, the first information includes at least one of the following: protocol description information; PDU set specific QoS features; and PDU set information.

[0054] In conjunction with some embodiments of the second aspect, in some embodiments, the protocol description information includes at least one of the following: a media type; and codec information.

[0055] In combination with some embodiments of the second aspect, in some embodiments, the PDU set specific QoS feature includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; and PDU set integrated processing information PSIHI.

[0056] 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; a PDU sequence number within the first PDU set; a data size of the PDU Set; a first identifier; the first identifier is used to indicate the last PDU in the first PDU set; a second identifier; the second identifier is used to indicate the relative importance of the first PDU Set to other PDU sets in the corresponding QoS flow.

[0057] In combination with some embodiments of the second aspect, in some embodiments, the DSCP value is located in an outer header of the first downlink data packet.

[0058] In conjunction with some embodiments of the second aspect, in some embodiments, the first downlink data packet is a downlink data message received from the N3 interface or the N9 interface.

[0059] In a third aspect, an embodiment of the present disclosure proposes a method for processing a service data flow, which is executed by a third network element. The method includes: sending first indication information for a first service data flow to a first network element, wherein the first indication information is used to indicate to the first network element that the first service data flow needs to be processed by a PDU set, so that the first network element determines the differentiated services code point DSCP value corresponding to the first PDU set, marks the DSCP value on the first downlink data packet corresponding to the first PDU set, and sends the marked first downlink data packet to the second network element; wherein the first PDU set is the PDU set of the first service data flow.

[0060] In combination with some embodiments of the third aspect. In some embodiments, the DSCP value is determined by first information corresponding to a first protocol data unit set PDU set, wherein the first information includes information related to quality of service QoS

[0061] In combination with some embodiments of the third aspect, in some embodiments, the first information includes at least one of the following: protocol description information; PDU set specific QoS features; and PDU set information.

[0062] In conjunction with some embodiments of the third aspect, in some embodiments, the protocol description information includes at least one of the following: a media type; and codec information.

[0063] In combination with some embodiments of the third aspect, in some embodiments, the PDU set specific QoS feature includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; and PDU set integrated processing information PSIHI.

[0064] 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; a PDU sequence number within the first PDU set; a data size of the PDU Set; a first identifier; the first identifier is used to indicate the last PDU in the first PDU set; a second identifier; the second identifier is used to indicate the relative importance of the first PDU Set to other PDU sets in the corresponding QoS flow.

[0065] In combination with some embodiments of the third aspect, in some embodiments, the DSCP value is located in an outer header of the first downlink data packet.

[0066] In conjunction with some embodiments of the third aspect, in some embodiments, the first downlink data packet is a downlink data message received from the N3 interface or the N9 interface.

[0067] In combination with some embodiments of the third aspect, in some embodiments, sending first indication information for the first service data flow to the first network element includes: sending a QoS execution rule to the first network element, wherein the QoS execution rule includes the first indication information for the first service data flow.

[0068] In conjunction with some embodiments of the third aspect, in some embodiments, the QoS execution rule further includes at least one of the following: an N4 session identifier; a rule identifier; and a QoS flow identifier.

[0069] In combination with some embodiments of the third aspect, in some embodiments, sending the QoS execution rule to the first network element comprises: sending the QoS execution rule to the first network element during the establishment process of the N4 session or the modification process of the N4 session.

[0070] In conjunction with some embodiments of the third aspect, in some embodiments, the QoS execution rule is carried by at least one of the following messages: an N4 association establishment request message; an N4 association establishment response message; an N4 session establishment request message; or an N4 session establishment response message.

[0071] In combination with some embodiments of the third aspect, in some embodiments, the method further includes: sending second indication information for the first service data flow to the first network element, wherein the second indication information is used to indicate to the first network element that the first service data flow does not need to be processed by PDU set.

[0072] In a fourth aspect, a device for processing a service data flow is proposed, the device comprising: a processing module for determining a differentiated services code point (DSCP) value corresponding to a first protocol data unit set (PDU set); wherein the first PDU set is a PDU set of a first service data flow; the first service data flow is a service data flow that requires PDU set processing; and a transceiver module for marking the DSCP value on a first downlink data packet corresponding to the first PDU set.

[0073] In the fifth aspect, a device for processing a service data flow is proposed, the device including: a transceiver module for receiving a first downlink data packet corresponding to a first protocol data unit set PDU set from the first network element, the first downlink data packet carrying a differentiated services code point DSCP value corresponding to the first PDU set; wherein the first PDU set is a PDU set of a first service data flow; the first service data flow is a service data flow that requires PDU set processing; a processing module for performing PDU set processing on the first downlink data packet based on the DSCP value.

[0074] In the sixth aspect, a device for processing a business data flow is proposed, the device comprising: a processing module for determining a first business data flow; a transceiver module for sending first indication information for the first business data flow to a first network element, the first indication information being used to indicate to the first network element that the first business data flow needs to be processed by a PDU set, so that the first network element determines the differentiated services code point (DSCP) value corresponding to the first PDU set, marks the DSCP value on a first downlink data packet corresponding to the first PDU set, and sends the marked first downlink data packet to a second network element; wherein the first PDU set is the PDU set of the first business data flow.

[0075] In the seventh aspect, a network device is proposed, comprising: one or more processors; wherein the network device is used to execute the service data flow processing method described in the optional embodiment of the first aspect, the second aspect or the third aspect above.

[0076] In an eighth aspect, an embodiment of the present disclosure proposes a communication device, which includes: one or more processors; wherein the communication device is used to execute the service data flow processing method described in the optional embodiment of the first aspect, the second aspect or the third aspect.

[0077] In the ninth aspect, an embodiment of the present disclosure proposes a communication system, which includes: a first network element, a second network element and a third network element; wherein, the first network element is configured to execute the method described in the first aspect and the optional embodiment of the first aspect, the second network element is configured to execute the method described in the optional embodiment of the second aspect, and the third network element is configured to execute the method described in the optional embodiment of the third aspect.

[0078] In the tenth 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 method described in the first and second aspects, and the optional embodiments of the first and second aspects.

[0079] In an eleventh 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 first and second aspects, and the optional embodiments of the first and second aspects.

[0080] In a twelfth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the methods described in the first and second aspects, and the optional embodiments of the first and second aspects.

[0081] It is understandable that the above-mentioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods 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.

[0082] The embodiments of the present disclosure provide a method for processing service data streams, a network device, a communication device, and a storage medium. In some embodiments, the terms information sending method, information receiving method, information processing method, and communication method are interchangeable; the terms terminal, network device, information processing device, and communication device are interchangeable; and the terms information processing system and communication system are interchangeable.

[0083] 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 embodiments 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 embodiments of other embodiments.

[0084] 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.

[0085] 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.

[0086] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", etc., may mean "one and only one", or "one or more", "at least one", etc.

[0087] For example, when using articles such as “a”, “an”, and “the” in English in translation, the noun following the article can be understood as a singular expression or a plural expression.

[0088] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0089] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0090] 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.

[0091] 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.

[0092] 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 restrictions on the position, order, priority, quantity or content of the description objects. For the statement of the description objects, please refer to the description in the context of the claims or embodiments, and no unnecessary restrictions should be constituted due to the use of prefixes.

[0093] For example, if the description object is "field," the ordinal number preceding "field" in "first field" and "second field" does not restrict the position or order of the "fields." "First" and "second" do not restrict whether the modified "fields" are in the same message, nor do they restrict the order of the "first field" and "second field." For another example, if the description object is "level," the ordinal number preceding "level" in "first level" and "second level" does not restrict the priority of the "levels." For another example, the number of description objects is not restricted by the ordinal number and can be one or more. For example, in the case of "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the description object is "device," "first device" and "second device" can be the same or different devices, and their types can be the same or different. For another example, if the description object is "information," "first information" and "second information" can be the same or different information, and their content can be the same or different.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] In some embodiments, devices and the like can be interpreted as physical or virtual, and their names are not limited to those in the embodiments.

[0098] The recorded names, "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject" and other terms can be used interchangeably.

[0099] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0100] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / 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)" and the like may be used interchangeably.

[0101] In some embodiments, the terms "terminal", "terminal device", "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. can be used interchangeably.

[0102] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0103] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0104] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0105] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0106] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0107] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0108] As shown in Figure 1, the communication system 100 includes a terminal 101, a first network element 111, a second network element 110 and a third network element 113, wherein the second network element 112 can be an access network device, and the first network element 1031 and the third network element 1032 are core network devices.

[0109] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0110] In some embodiments, the access network device is, for example, a node or device that accesses a terminal 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.

[0111] 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).

[0112] 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.

[0113] In some embodiments, the access network device 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.

[0114] 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.

[0115] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0116] 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).

[0117] FIG2 is an interactive schematic diagram showing a method for processing a service data flow according to an embodiment of the present disclosure.

[0118] As shown in Figure 2, the method for processing the service data flow includes:

[0119] Step S201: The third network element sends first indication information to the first network element.

[0120] In some embodiments, the third network element sends first indication information for the first service data flow to the first network element, where the first indication information is used to indicate to the first network element that the first service data flow needs to be processed by PDU set.

[0121] In some embodiments, the third network element sends a QoS execution rule to the first network element, where the QoS execution rule includes first indication information for the first service data flow.

[0122] In some embodiments, the QoS execution rule further includes at least one of the following: an N4 session identifier; a rule identifier; a QoS flow identifier.

[0123] In some embodiments, the third network element sends QoS execution rules to the first network element during the establishment of the N4 session.

[0124] In some embodiments, the QoS execution rule may be carried by an N4 association establishment request message or an N4 association establishment response message.

[0125] In some embodiments, the third network element sends the QoS execution rule to the first network element during the modification process of the N4 session.

[0126] In some embodiments, the QoS execution rule may be carried by an N4 session establishment request message or an N4 session establishment response message.

[0127] In some embodiments, the third network element may send second indication information for the first service data flow to the first network element, where the second indication information is used to indicate to the first network element that the first service data flow does not require PDU set processing.

[0128] Step S202: The first network element performs DSCP marking.

[0129] In some embodiments, the first network element determines a differentiated services code point (DSCP) value corresponding to the first PDU set; wherein the first PDU set is a PDU set of a first service data flow; and the first service data flow is a service data flow that requires PDU set processing.

[0130] In some embodiments, the first network element can determine the differentiated services code point DSCP value corresponding to the first protocol data unit set PDU set based on first information corresponding to the first PDU set; wherein the first information includes information related to quality of service QoS; the first PDU set is the PDU set of the first service data flow; the first service data flow is a service data flow that needs to be processed by PDU set.

[0131] In some embodiments, the first information includes at least one of the following: protocol description information; PDU set specific QoS features; PDU set information.

[0132] In some embodiments, the protocol description information includes at least one of the following: media type; codec information.

[0133] In some embodiments, the PDU set specific QoS feature includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; PDU set integrated processing information PSIHI.

[0134] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; a PDU sequence number within the first PDU set; the data size of the PDU Set; a first identifier; the first identifier is used to indicate the last PDU in the first PDU set; a second identifier; the second identifier is used to indicate the relative importance of the first PDU Set to other PDU sets in the corresponding QoS flow.

[0135] Step S203: The first network element sends the marked downlink data packet to the second network element.

[0136] In some embodiments, the first network element marks the DSCP value on the first downlink data packet corresponding to the first PDU set.

[0137] In some embodiments, the first wind element may send the marked first downlink data packet to the second network element, so that the second network element performs PDU set processing on the first downlink data packet based on the DSCP value.

[0138] In some embodiments, the first network element may mark the DSCP value in the outer header of the first downlink data packet corresponding to the first PDU set.

[0139] In some embodiments, the first downlink data packet is a downlink data message received from the N3 interface or the N9 interface.

[0140] In some embodiments, the first network element is a user plane function UPF.

[0141] In some embodiments, the second network element is a radio access network RAN.

[0142] In some embodiments, the third network element is a session management function SMF.

[0143] The communication method involved in the embodiments of the present disclosure may include at least one of steps S201 to S203. For example, step S201 may be implemented as an independent embodiment, step S202 may be implemented as an independent embodiment, step S203 may be implemented as an independent embodiment, steps S202+S203 may be implemented as independent embodiments, and steps S201+S202+S203 may be implemented as independent embodiments, but are not limited thereto.

[0144] In some embodiments, steps S201 , S202 , and S203 may be performed in an interchangeable order or simultaneously.

[0145] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0146] In some embodiments, step S202 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0147] In some embodiments, step S203 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0148] In some embodiments, reference may be made to other optional embodiments described before or after the description corresponding to FIG. 2 .

[0149] In some embodiments, mobile media services, extended reality (XR) services such as augmented reality (AR) / virtual reality (VR), cloud gaming, and video-based remote control of machines or drones are expected to contribute increasingly higher traffic to communication networks, such as 5G networks. XR services involve multimodal data streams. Multimodal data is data that describes the same service / application and is input from the same device or different devices (including sensors). This data may be output to one or more destination device terminals. The data streams in multimodal data often have certain or even strong correlations, such as the synchronization of audio and video streams, and the synchronization of touch and vision. The data streams of these media services, the relationships between the data streams, and the network transmission requirements of these service data streams all have some common characteristics. The effective identification and utilization of these characteristics will be more conducive to the transmission and control of networks and services, and will also be more conducive to service assurance and user experience.

[0150] Extended Reality Media (XRM) and interactive media services require the 5G System (5GS) to comprehensively consider the QoS characteristics of relevant service data flows. For example, parameters such as guaranteed forwarding burst rate (GFBR), packet delay budget (PDB), and default maximum data burst volume (MDBV) for delay-critical guaranteed bit rate (GBR) data flows can be simultaneously met and coordinated. This also involves ensuring the consistency of QoS authorization and execution for multiple XRM data flows within a terminal (also known as user equipment (UE)) and XRM data flows within multiple UEs.

[0151] 5GS supports application function (AF) enhancements to the processing of each PDU set of XRM service data flows. This supports AF's enhanced QoS awareness and assurance of XRM service data flows, as well as user Quality of Experience (QoE).

[0152] Among them, AF can provide specific QoS features and protocol description information (Protocol Description) of PDU Set. SMF and UPF can combine the protocol description information and protocol header extension provided by AF to perform General Packet Radio Service Tunneling Protocol User Plane (GTP-U) header extension of the corresponding PDU in the PDU set of the corresponding service data flow (SDF) to carry DPU set information.

[0153] Enhanced PDU set features significantly improve 5GS's QoS assurance for XRM service requirements. However, resource optimization at the 5GS transport layer for XRM services is not yet supported, significantly limiting the QoE and QoS optimization benefits of the current PDU set enhancements. Supporting 5GS transport layer resource optimization for XRM services, ensuring more effective end-to-end QoS guarantees, better adapting resource demand and allocation, and coordinating E2E QoS resources remain key challenges for the current 5GS system.

[0154] In a first aspect, embodiments of the present disclosure provide a method for processing a service data flow. Figure 3A is a schematic flow chart illustrating a method for processing a service data flow according to an embodiment of the present disclosure. The method for processing a service data flow illustrated in this embodiment may be executed by a first network element.

[0155] Among them, the first network element can process user plane functions, be responsible for forwarding and routing of user data, and provide network equipment such as data transmission and service quality control. For example, the first network element is a user plane function (UPF). For the sake of simplicity, UPF is used as the first network element for illustration in the following embodiments.

[0156] As shown in FIG3A , the method for processing a service data flow may include the following steps:

[0157] In step S301, the first network element determines a Differentiated Services Code Point (DSCP) value corresponding to the first PDU set; wherein the first PDU set is a PDU set of a first service data flow; and the first service data flow is a service data flow that requires PDU set processing.

[0158] In step S302, the first network element marks the DSCP value on the first downlink data packet corresponding to the first PDU set.

[0159] In some embodiments, the UPF determines a first service data flow (SDF) that requires PDU set processing, that is, determines a first SDF that supports application of DSCP marking.

[0160] The method for determining the first SDF may be set according to actual needs, for example, it may be predefined by a protocol; or it may be determined based on indication information sent by other network devices.

[0161] In some embodiments, a third network element may provide first indication information to the UPF, where the first indication information is used to indicate to the UPF that a DSCP mark needs to be applied to the first SDF.

[0162] The third network element may be a network element device for processing a session management function, such as a session management function (SMF). For simplicity, the following embodiments use SMF as an example of the third network element.

[0163] In some embodiments, the UPF determines a first downlink data packet carrying a first PDU set corresponding to the first SDF from the downlink data packets to be sent, and determines a DSCP value corresponding to the first PDU set.

[0164] In some embodiments, the DSCP value may be acquired in advance, or the DSCP value corresponding to the first PDU set may be determined based on first information corresponding to the first PDU set.

[0165] The first information corresponding to the first PDU set may include information related to the QoS corresponding to the first PDU set, that is, relevant information required for PDU set handling.

[0166] In some embodiments, the first information may include at least one of the following: protocol description information (Protocol Description); PDU set specific QoS characteristics (PDU Set specific QoS characteristics) corresponding to the first DPU set; PDU set information (PDU set Information) corresponding to the first PDU set.

[0167] In some embodiments, the protocol description information may include at least one of the following: media type; codec information.

[0168] In some embodiments, the PDU set specific QoS feature includes at least one of the following: PDU set delay budget (PSDB); PDU set error rate (PSER); PDU set integrated handling information (PSIHI).

[0169] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number (PDU Set Sequence Number); a PDU sequence number within the first PDU set (PDU Sequence Number within a PDU Set); a data size of the PDU Set (PDU Set Size), for example, in bytes or bits; a first identifier, which can be represented by an Indication of End PDU of the PDU Set, and which is used to indicate the last PDU in the first PDU set; a second identifier, which can be represented by a PDU set importance (PDU Set Importance, PSI), and which is used to indicate the relative importance of the first PDU Set to other PDU sets in the corresponding QoS flow.

[0170] In some embodiments, after determining the DSCP value corresponding to the first PDU set based on the first information corresponding to the first PDU set, the UPF may mark the DSCP value in the first downlink data packet, and then send the marked first downlink data packet to the second network element.

[0171] In some embodiments, the first network element may mark the DSCP value in the first downlink data packet.

[0172] In some embodiments, the first network element may also send the marked first downlink data packet to the second network element in various ways. For example, the DSCP value may be recorded in a designated information field in the first downlink data packet, and then sent together with the first downlink data packet to the second network element; or the DSCP value may be associated with the first downlink data packet, and then sent together with the first downlink data packet to the second network element; or the DSCP value, the first downlink data packet, and the correspondence between the DSCP value and the first downlink data packet may be sent separately or together to the second network element.

[0173] In some embodiments, the UPF may mark the DSCP value on an outer encapsulation header of the first downlink data packet corresponding to the first PDU set, and then send the marked first downlink data packet to the second network element.

[0174] In some embodiments, the first downlink data packet is a downlink data message received from an N3 interface or an N9 interface. The UPF may mark the DSCP in an outer header of a downlink data message corresponding to the first PDU set received over an N3 reference point or an N9 reference point, and then send the downlink data message to the second network element.

[0175] The second network element may be a radio access network (RAN) used to connect the terminal and the core network. After receiving the marked first downlink data packet, the second network element may determine the first information corresponding to the first PDU set based on the DSCP value extracted from the first downlink data packet, and then perform corresponding PDU QoS processing and / or PDU set QoS processing based on the DSCP value.

[0176] For example, for the same first SDF, PDU1 of PDU set 1 is marked with DSCP 1, and PDU2 of PDU set 2 is marked with DSCP 1. Because PDU1 of PDU set 1 and PDU2 of PDU set 2, which have the same PSI, are in the same QoS flow, the DSCP value of the PDUs of PDU set 1 is the same as the DSCP value of the PDUs of PDU set 2.

[0177] When the PSI1 of PDU set1 is different from the PSI2 of PDU set2, the DSCP1 of PDU set1 and the DSCP2 of PDU set2 are also different; then for PDU1 in PDU set1, DSCP1 is marked in the outer packet header of the downstream data message at the N3 or N9 reference point; for PDU2 in PDU set1, DSCP2 is marked in the outer packet header of the downstream data message at the N3 or N9 reference point.

[0178] It should be noted that the embodiment shown in FIG. 3A can be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific selection can be made as needed and the present disclosure does not limit it.

[0179] In some embodiments, the UPF determines a DSCP value based on first information corresponding to the first PDU set, and DSCP-marks the first downlink data packet corresponding to the first PDU set before sending it to the RAN, thereby enabling the RAN to optimize the resource scheduling and configuration of the transport layer based on the DSCP marking and considering the characteristics of the PDU set, more effectively guarantee end-to-end (E2E) QoS requirements, better adapt to resource requirements and allocation, and coordinate E2E QoS resources.

[0180] FIG3B is a schematic flow chart of a method for processing a service data stream according to an embodiment of the present disclosure. As shown in FIG3B , the method for processing a service data stream may include the following steps:

[0181] In step S311, the first network element receives first indication information for the first service data flow from the third network element, where the first indication information is used to indicate to the first network element that the first service data flow needs to be processed by PDU set.

[0182] In some embodiments, the SMF may provide the UPF with first indication information for the first SDF, so as to indicate to the UPF through the first indication information that the first SDF needs to perform PDU set processing and that a DSCP marking may be applied to the first SDF. The first indication information may be referred to as a DSCP Marking Indication.

[0183] There are many ways for SMF to provide UPF with the first indication information for the first SDF. The first indication information can be carried by a specified message according to actual needs. The first indication information can be sent independently or in the information field of the existing information.

[0184] In some embodiments, the UPF may receive a QoS enforcement rule (QER) from the SMF, where the QoS enforcement rule includes first indication information for the first SDF.

[0185] The QoS execution rule may further include at least one of the following: an N4 session identifier (N4 Session ID); a rule identifier (Rule ID); and a QoS flow identifier (QoS Flow ID).

[0186] For example, the various attributes included in the QoS execution rule may be shown in the following table:

[0187] The SMF may provide the QoS enforcement rules to the UPF in various ways. For example, in some embodiments, the QoS enforcement rules may be received from the third network element during the establishment or modification of the N4 session. The SMF may provide the QoS enforcement rules to the UPF via the N4 reference point.

[0188] In step S312, the first network element determines a DSCP value corresponding to a first protocol data unit set (PDU set) based on first information corresponding to the first PDU set.

[0189] In step S313, the first network element marks the DSCP value on the first downlink data packet corresponding to the first PDU set, and sends the marked first downlink data packet to the second network element, so that the second network element performs PDU set processing on the first downlink data packet based on the DSCP value.

[0190] Among them, steps S312-S313 can implement the method embodiment of steps S301-S302 in Figure 3A and obtain the same technical effect, and the repeated parts will not be repeated here.

[0191] It can be seen that the SMF can control the UPF's related DSCP marking function for the PDU set of the QoS flow by providing a DSCP marking indication to the UPF, thereby allowing differentiated processing of downlink data packets carrying the PDU set in the QoS flow.

[0192] In some embodiments, during the establishment of an N4 session, the SMF may establish an N4 association with the UPF, so that the SMF can subsequently use the N4 session established by the UPF. During the establishment of the N4 association, the SMF and the UPF may exchange the functions they support. This may include the SMF providing a DSCP marking indication to the UPF. As shown in FIG3C , the method for processing a service data flow may include the following steps:

[0193] In step S321, the SMF triggers the N4 Association Setup procedure and requests the UPF to establish an N4 association, for example, sending an N4 Association Setup Request message to the UPF.

[0194] The N4 association establishment request message carries a QoS execution rule, and the QoS execution rule includes a DSCP marking function for the first SDF.

[0195] In step S322, the UPF replies an N4 Association Setup Response message (N4 Association Setup Response) to the SMF.

[0196] In step S323, the UPF determines a DSCP value corresponding to the first PDU set based on the first information corresponding to the first PDU set.

[0197] In step S324, the UPF marks the DSCP value on the first downlink data packet corresponding to the first PDU set, and sends the marked first downlink data packet to the RAN, so that the RAN performs PDU set processing on the first downlink data packet based on the DSCP value.

[0198] Among them, step S321 can implement the method embodiment of step S311 in Figure 3B, and steps S323-S324 can implement the method embodiment of steps S301-S302 in Figure 3A, and obtain the same technical effect. The repeated parts will not be repeated here.

[0199] In some implementations, the N4 association setup process may also be triggered by the UPF. As shown in FIG3D , the method for processing the service data flow may include the following steps:

[0200] In step S331, the UPF triggers the N4 association setting process and requests the SMF to establish an N4 association, for example, sending an N4 association establishment request message to the SMF.

[0201] In step S332, the SMF replies to the UPF with an N4 association establishment response message.

[0202] The N4 association establishment response message carries a QoS execution rule, and the QoS execution rule includes a DSCP marking function for the first SDF.

[0203] In step S333, the UPF determines a DSCP value corresponding to the first PDU set based on the first information corresponding to the first PDU set.

[0204] In step S334, the UPF marks the DSCP value on the first downlink data packet corresponding to the first PDU set, and sends the marked first downlink data packet to the RAN, so that the RAN performs PDU set processing on the first downlink data packet based on the DSCP value.

[0205] Among them, step S331 can implement the method embodiment of step S311 in Figure 3B, and steps S333-S334 can implement the method embodiment of steps S301-S302 in Figure 3A, and obtain the same technical effect. The repeated parts will not be repeated here.

[0206] In some embodiments, the N4 Session Establishment procedure is used to create an initial N4 Session context for a PDU Session at the UPF. The SMF allocates a new N4 Session ID and provides it to the UPF. The N4 Session ID is stored by both entities and is used to identify the N4 Session context during interaction. The SMF also stores the relationship between the UE's N4 Session ID and the PDU Session.

[0207] In some embodiments, for example, due to the movement of the terminal, it may be necessary to establish a new PDU session or update the UPF of an established PDU session. As shown in FIG3E , the method for processing the service data flow may include the following steps:

[0208] In step S341, the SMF receives trigger information (Trigger) from the UPF to establish a new PDU session or to update an established PDU session.

[0209] In step S342, the SMF sends an N4 Session Establishment Request message to the UPF, which contains structured control information that defines how the UPF needs to behave; the N4 Session Establishment Request message carries QoS execution rules, and the QoS execution rules include a DSCP marking function for the first SDF.

[0210] In step S343, the UPF replies with an N4 session establishment response message, which contains any information that the UPF must provide to the SMF in response to the received control information.

[0211] In step S344, the SMF interacts with the network function that triggers the process, such as AMF or PCF.

[0212] In step S345, the UPF determines a DSCP value corresponding to the first PDU set based on the first information corresponding to the first PDU set.

[0213] In step S346, the UPF marks the DSCP value on the first downlink data packet corresponding to the first PDU set, and sends the marked first downlink data packet to the RAN, so that the RAN performs PDU set processing on the first downlink data packet based on the DSCP value.

[0214] Among them, step S343 can implement the method embodiment of step S311 in Figure 3B, and steps S345-S346 can implement the method embodiment of steps S301-S302 in Figure 3A, and obtain the same technical effect. The repeated parts will not be repeated here.

[0215] In some embodiments, the N4 session establishment process can also be initiated by the UPF, and the UPF sends an N4 session establishment request message to the SMF; the SMF replies with an N4 session establishment response message to the UPF, wherein the N4 session establishment response message carries QoS execution rules, and the QoS execution rules include a DSCP marking function for the first SDF.

[0216] In some embodiments, when the 5GS decides to stop applying DSCP marking to the first SDF, the UPF may further receive second indication information for the first SDF from the SMF, where the second indication information is used to indicate to the UPF that no PDU set processing is required for the first service data flow, i.e., to instruct the UPF to stop applying DSCP marking to the first SDF. Upon receiving the second indication information, the UPF will no longer perform DSCP marking on the first downlink data packet carrying the first PDU set corresponding to the first SDF, and will no longer need to mark the DSCP value in the outer header of the downlink data message at the N3 or N9 reference point.

[0217] The second indication information may be sent in an explicit or implicit manner. For example, the SMF may send a QoS execution rule that does not carry a DSCP marking indication to the UPF to indicate to the UPF that the DSCP marking is no longer applied to the first SDF.

[0218] The embodiments of the present disclosure provide a method for processing a service data flow. Figure 4 is a schematic flow chart illustrating a method for processing a service data flow according to an embodiment of the present disclosure. The method for processing a service data flow illustrated in this embodiment can be executed by a second network element.

[0219] As shown in FIG4 , the method for processing a service data flow may include the following steps:

[0220] In step S401, a first downlink data packet corresponding to a first protocol data unit set (PDU set) is received from the first network element, and the first downlink data packet carries a differentiated services code point (DSCP) value corresponding to the first PDU set; wherein the first PDU set is a PDU set of a first service data flow; and the first service data flow is a service data flow that requires PDU set processing.

[0221] In step S402, PDU set processing is performed on the first downlink data packet based on the DSCP value.

[0222] In some embodiments, the DSCP value is determined by first information corresponding to the first PDU set, where the first information includes information related to quality of service (QoS).

[0223] In some embodiments, the first information includes at least one of the following: protocol description information; PDU set specific QoS features; PDU set information.

[0224] In some embodiments, the protocol description information includes at least one of the following: media type; codec information.

[0225] In some embodiments, the PDU set specific QoS feature includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; PDU set integrated processing information PSIHI.

[0226] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; a PDU sequence number within the first PDU set; the data size of the PDU Set; a first identifier; the first identifier is used to indicate the last PDU in the first PDU set; a second identifier; the second identifier is used to indicate the relative importance of the first PDU Set to other PDU sets in the corresponding QoS flow.

[0227] In some embodiments, the DSCP value is located in an outer header of the first downlink data packet.

[0228] In some embodiments, the first downlink data packet is a downlink data message received from the N3 interface or the N9 interface.

[0229] It should be noted that the embodiment shown in FIG. 4 can be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific selection can be made as needed and the present disclosure does not limit it.

[0230] According to an embodiment of the present disclosure, the UPF determines a DSCP value based on the first information corresponding to the first PDU set, and DSCP-marks the first downlink data packet corresponding to the first PDU set before sending it to the RAN, thereby enabling the RAN to optimize the resource scheduling and configuration of the transport layer based on the DSCP marking and considering the characteristics of the PDU set, more effectively guarantee end-to-end (E2E) QoS requirements, better adapt to resource requirements and allocation, and coordinate E2E QoS resources.

[0231] The embodiments of the present disclosure provide a method for processing a service data flow. Figure 5 is a schematic flow chart illustrating a method for processing a service data flow according to an embodiment of the present disclosure. The method for processing a service data flow illustrated in this embodiment can be executed by a third network element.

[0232] As shown in FIG5 , the method for processing a service data flow may include the following steps:

[0233] In step S501, first indication information for a first service data flow is sent to a first network element, where the first indication information is used to indicate to the first network element that the first service data flow needs to be processed by a PDU set, so that the first network element determines a differentiated services code point (DSCP) value corresponding to a first protocol data unit set (PDU set), marks the DSCP value on a first downlink data packet corresponding to the first PDU set, and sends the marked first downlink data packet to a second network element; wherein the first PDU set is the PDU set of the first service data flow.

[0234] In some embodiments, the DSCP value is determined by first information corresponding to the first PDU set, where the first information includes information related to quality of service (QoS).

[0235] In some embodiments, the first information includes at least one of the following: protocol description information; PDU set specific QoS features; PDU set information.

[0236] In some embodiments, the protocol description information includes at least one of the following: media type; codec information.

[0237] In some embodiments, the PDU set specific QoS feature includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; PDU set integrated processing information PSIHI.

[0238] In some embodiments, the PDU set information includes at least one of the following: a PDU set sequence number; a PDU sequence number within the first PDU set; the data size of the PDU Set; a first identifier; the first identifier is used to indicate the last PDU in the first PDU set; a second identifier; the second identifier is used to indicate the relative importance of the first PDU Set to other PDU sets in the corresponding QoS flow.

[0239] In some embodiments, the DSCP value is located in an outer header of the first downlink data packet.

[0240] In some embodiments, the first downlink data packet is a downlink data message received from the N3 interface or the N9 interface.

[0241] In some embodiments, sending first indication information for the first service data flow to the first network element includes: sending QoS execution rules to the first network element, the QoS execution rules including the first indication information for the first service data flow.

[0242] In some embodiments, the QoS execution rule further includes at least one of the following: an N4 session identifier; a rule identifier; a QoS flow identifier.

[0243] In some embodiments, sending the QoS execution rules to the first network element includes: sending the QoS execution rules to the first network element during the establishment process of the N4 session or the modification process of the N4 session.

[0244] In some embodiments, the QoS enforcement rule is carried by at least one of the following messages: N4 association establishment request message; N4 association establishment response message; N4 session establishment request message; N4 session establishment response message.

[0245] In some embodiments, the method further includes: sending second indication information for the first service data flow to the first network element, where the second indication information is used to indicate to the first network element that the first service data flow does not need to be processed by PDU set.

[0246] It should be noted that the embodiment shown in FIG. 5 can be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific selection can be made as needed and the present disclosure does not limit it.

[0247] According to an embodiment of the present disclosure, the UPF determines a DSCP value based on the first information corresponding to the first PDU set, and DSCP-marks the first downlink data packet corresponding to the first PDU set before sending it to the RAN, thereby enabling the RAN to optimize the resource scheduling and configuration of the transport layer based on the DSCP marking and considering the characteristics of the PDU set, more effectively guarantee end-to-end (E2E) QoS requirements, better adapt to resource requirements and allocation, and coordinate E2E QoS resources.

[0248] 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.

[0249] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0250] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0251] 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.

[0252] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0253] Corresponding to the aforementioned embodiments of the method for processing service data flows, the present disclosure also provides embodiments of a terminal and a network device.

[0254] An embodiment of the present disclosure further proposes a network device, comprising: one or more processors; wherein the network device is used to execute the method for processing the service data flow described in the above embodiment.

[0255] FIG6A is a schematic block diagram of a first network element according to an embodiment of the present disclosure. As shown in FIG6A , the first network element may be a device for processing service data flows, and the device 6000 includes a processing module 601 and a transceiver module 602 .

[0256] In some embodiments, the processing module 601 is used to determine a differentiated services code point (DSCP) value corresponding to a first protocol data unit set (PDU set); wherein the first PDU set is a PDU set of a first service data flow; the first service data flow is a service data flow that requires PDU set processing; the transceiver module 602 is used to mark the DSCP value on a first downlink data packet corresponding to the first PDU set.

[0257] Furthermore, the processing module 601 is configured to determine a differentiated services code point (DSCP) value corresponding to the first PDU set based on first information corresponding to the first PDU set; wherein the first information includes information related to quality of service (QoS).

[0258] Furthermore, the first information includes at least one of the following: protocol description information; PDU set specific QoS features; PDU set information.

[0259] Furthermore, the protocol description information includes at least one of the following: media type; codec information.

[0260] Furthermore, the PDU set specific QoS feature includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; PDU set integrated processing information PSIHI.

[0261] Furthermore, the PDU set information includes at least one of the following: a PDU set sequence number; a PDU sequence number within the first PDU set; a data size of the PDU Set; a first identifier; the first identifier is used to indicate the last PDU in the first PDU set; a second identifier; the second identifier is used to indicate the relative importance of the first PDU Set in the corresponding QoS flow compared to other PDU sets.

[0262] Furthermore, the transceiver module 602 is configured to mark the DSCP value in an external header of a first downlink data packet corresponding to the first PDU set.

[0263] Furthermore, the first downlink data packet is a downlink data message received from the N3 interface or the N9 interface.

[0264] Furthermore, the transceiver module 602 is further configured to send the marked first downlink data packet to a second network element, so that the second network element performs PDU set processing on the first downlink data packet based on the DSCP value.

[0265] Furthermore, the transceiver module 602 is further configured to receive first indication information for the first service data flow from a third network element, where the first indication information is configured to indicate to the first network element that the first service data flow requires PDU set processing.

[0266] Furthermore, the transceiver module 602 is configured to receive a QoS execution rule from the third network element, where the QoS execution rule includes first indication information for the first service data flow.

[0267] Furthermore, the QoS execution rule also includes at least one of the following: N4 session identifier; rule identifier; QoS flow identifier.

[0268] Furthermore, the transceiver module 602 is configured to receive the QoS execution rule from the third network element during the establishment process of the N4 session or the modification process of the N4 session.

[0269] Furthermore, the QoS execution rule is carried by at least one of the following messages: N4 association establishment request message; N4 association establishment response message; N4 session establishment request message; N4 session establishment response message.

[0270] Furthermore, the first indication information is a DSCP marking indication.

[0271] Furthermore, the transceiver module 602 is further configured to receive second indication information for the first service data flow from a third network element, where the second indication information is configured to indicate to the first network element that the first service data flow does not require PDU set processing.

[0272] Furthermore, the first network element is a user plane function UPF.

[0273] Furthermore, the second network element is a radio access network RAN.

[0274] Furthermore, the third network element is a session management function SMF.

[0275] It should be noted that the modules included in the terminal are not limited to the modules described in the above embodiments, and may also include other modules, such as a storage module, a display module, etc.

[0276] FIG6B is a schematic block diagram of a second network element according to an embodiment of the present disclosure. As shown in FIG6B , the second network element may be a device for processing service data flows, and the device 6100 includes a processing module 611 and a transceiver module 612 .

[0277] In some embodiments, the transceiver module 611 is used to receive a first downlink data packet corresponding to a first protocol data unit set PDU set from the first network element, and the first downlink data packet carries a differentiated services code point DSCP value corresponding to the first PDU set; wherein the first PDU set is a PDU set of a first service data flow; the first service data flow is a service data flow that needs to be processed by PDU set; the processing module 612 is used to perform PDU set processing on the first downlink data packet based on the DSCP value.

[0278] Furthermore, the DSCP value is determined by first information corresponding to the first PDU set, and the first information includes information related to quality of service QoS.

[0279] Furthermore, the first information includes at least one of the following: protocol description information; PDU set specific QoS features; PDU set information.

[0280] Furthermore, the protocol description information includes at least one of the following: media type; codec information.

[0281] Furthermore, the PDU set specific QoS feature includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; PDU set integrated processing information PSIHI.

[0282] Furthermore, the PDU set information includes at least one of the following: a PDU set sequence number; a PDU sequence number within the first PDU set; a data size of the PDU Set; a first identifier; the first identifier is used to indicate the last PDU in the first PDU set; a second identifier; the second identifier is used to indicate the relative importance of the first PDU Set in the corresponding QoS flow compared to other PDU sets.

[0283] Furthermore, the DSCP value is located in an outer header of the first downlink data packet.

[0284] Furthermore, the first downlink data packet is a downlink data message received from the N3 interface or the N9 interface.

[0285] It should be noted that the modules included in the network device are not limited to the modules described in the above embodiments, and may also include other modules, such as a storage module, a display module, etc.

[0286] FIG6C is a schematic block diagram illustrating a second network element according to an embodiment of the present disclosure. As shown in FIG6C , the second network element may be a device for processing service data flows, and the device 6200 includes a processing module 621 and a transceiver module 622 .

[0287] In some embodiments, the processing module 621 is used to determine a first business data flow; the transceiver module 622 is used to send first indication information for the first business data flow to the first network element, and the first indication information is used to indicate to the first network element that the first business data flow needs to be processed by PDU set, so that the first network element determines the differentiated services code point DSCP value corresponding to the first PDU set, marks the DSCP value on the first downlink data packet corresponding to the first PDU set, and sends the marked first downlink data packet to the second network element; wherein the first PDU set is the PDU set of the first business data flow.

[0288] Furthermore, the DSCP value is determined by first information corresponding to the first PDU set, and the first information includes information related to quality of service QoS.

[0289] Furthermore, the first information includes at least one of the following: protocol description information; PDU set specific QoS features; PDU set information.

[0290] Furthermore, the protocol description information includes at least one of the following: media type; codec information.

[0291] Furthermore, the PDU set specific QoS feature includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; PDU set integrated processing information PSIHI.

[0292] Furthermore, the PDU set information includes at least one of the following: a PDU set sequence number; a PDU sequence number within the first PDU set; a data size of the PDU Set; a first identifier; the first identifier is used to indicate the last PDU in the first PDU set; a second identifier; the second identifier is used to indicate the relative importance of the first PDU Set in the corresponding QoS flow compared to other PDU sets.

[0293] Furthermore, the DSCP value is located in an outer header of the first downlink data packet.

[0294] Furthermore, the first downlink data packet is a downlink data message received from the N3 interface or the N9 interface.

[0295] Furthermore, the transceiver module 622 is configured to send a QoS execution rule to the first network element, where the QoS execution rule includes first indication information for the first service data flow.

[0296] Furthermore, the QoS execution rule also includes at least one of the following: N4 session identifier; rule identifier; QoS flow identifier.

[0297] Furthermore, the transceiver module 622 is configured to send QoS execution rules to the first network element during the establishment process of the N4 session or the modification process of the N4 session.

[0298] Furthermore, the QoS execution rule is carried by at least one of the following messages: N4 association establishment request message; N4 association establishment response message; N4 session establishment request message; N4 session establishment response message.

[0299] Furthermore, the transceiver module 622 is further configured to send second indication information for the first service data flow to the first network element, where the second indication information is configured to indicate to the first network element that the first service data flow does not require PDU set processing.

[0300] It should be noted that the modules included in the network device are not limited to the modules described in the above embodiments, and may also include other modules, such as a storage module, a display module, etc.

[0301] For the device embodiment, since it basically corresponds to the method embodiment, the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described above is merely illustrative, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art can understand and implement it without paying any creative work.

[0302] An embodiment of the present disclosure further proposes a communication device, comprising: one or more processors; wherein the communication device is used to execute the method for processing the service data flow described in the above optional embodiment.

[0303] An embodiment of the present disclosure also proposes a communication system, including a terminal and a network device, wherein the terminal is configured to implement the method for processing the business data flow described in the above optional embodiment, and the network device is configured to implement the method for processing the business data flow described in the above optional embodiment.

[0304] An embodiment of the present disclosure further provides a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the method for processing the service data flow described in the above optional embodiment.

[0305] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0306] 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.

[0307] In the embodiments of the present disclosure, the processor is a circuit with signal 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.

[0308] Figure 7 is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, 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 7100 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.

[0309] As shown in Figure 7, the communication device 7100 includes one or more processors 7101. The processor 7101 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 communication protocols 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. The processor 7101 is used to call instructions to enable the communication device 7100 to perform any of the above methods.

[0310] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may be located outside the communication device 7100.

[0311] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the communication steps such as sending and receiving in the above method are performed by the transceiver 7103, and the other steps are performed by the processor 7101.

[0312] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0313] Optionally, the communication device 7100 further includes one or more interface circuits 7104, which are connected to the memory 7102. The interface circuits 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuits 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0314] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7 . 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.

[0315] FIG8 is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 8200 shown in FIG8 , but the present disclosure is not limited thereto.

[0316] The chip 8200 includes one or more processors 8201, and the processor 8201 is used to call instructions so that the chip 8200 executes any of the above methods.

[0317] In some embodiments, the chip 8200 further includes one or more interface circuits 8202, which are connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory.

[0318] 8203 or other devices to send signals. For example, the interface circuit 8202 can read the instructions stored in the memory 8203 and send the instructions to the processor 8201. Optionally, the terms interface circuit, interface, transceiver pin, transceiver, etc. can be used interchangeably.

[0319] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0320] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes 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 temporary storage medium.

[0321] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0322] 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.

Claims

1. A method for processing a business data stream, characterized in that: Executed by a first network element, the method includes: Determine a differentiated services code point DSCP value corresponding to a first protocol data unit set PDU set; wherein the first PDU set is a PDU set of a first service data flow; and the first service data flow is a service data flow that needs to be processed by PDU set; The DSCP value is marked on a first downlink data packet corresponding to the first PDU set.

2. The method according to claim 1, characterized in that The determining of a differentiated services code point DSCP value corresponding to the first protocol data unit set PDU set includes: Based on first information corresponding to the first PDU set, a differentiated services code point DSCP value corresponding to the first PDU set is determined; wherein the first information includes information related to quality of service QoS.

3. The method according to claim 2, characterized in that The first information includes at least one of the following: Protocol Description PDU sets specific QoS characteristics; PDU set information.

4. The method according to claim 3, characterized in that The protocol description information includes at least one of the following: Media type Codec information.

5. The method according to claim 3 or 4, characterized in that: The PDU set specific QoS feature includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; PDU set comprehensive processing information PSIHI.

6. The method according to any one of claims 3 to 5, characterized in that: The PDU set information includes at least one of the following: PDU set serial number; A PDU sequence number in the first PDU set; The data size of the PDU Set; A first identifier; the first identifier is used to indicate the last PDU in the first PDU set; Second identification; The second identifier is used to indicate the relative importance of the first PDU Set compared with other PDU sets in the corresponding QoS flow.

7. The method according to any one of claims 1 to 6, characterized in that: The marking the DSCP value on the first downlink data packet corresponding to the first PDU set includes: The DSCP value is marked in the outer header of the first downlink data packet corresponding to the first PDU set.

8. The method according to any one of claims 1 to 7, characterized in that: The first downlink data packet is a downlink data message received from the N3 interface or the N9 interface.

9. The method according to any one of claims 1 to 8, characterized in that: The method further comprises: The marked first downlink data packet is sent to the second network element, so that the second network element performs PDU set processing on the first downlink data packet based on the DSCP value.

10. The method according to any one of claims 1 to 9, characterized in that: The method further comprises: First indication information for the first service data flow is received from a third network element, where the first indication information is used to indicate to the first network element that the first service data flow needs to be processed by PDU set.

11. The method according to claim 10, characterized in that The receiving, from the third network element, first indication information for the first service data flow includes: A QoS execution rule is received from the third network element, where the QoS execution rule includes first indication information for the first service data flow.

12. The method according to claim 11, characterized in that The QoS execution rule also includes at least one of the following: N4 session identifier; Rule identification; QoS flow identifier.

13. The method according to claim 11 or 12, characterized in that: The receiving a QoS execution rule from the third network element comprises: The QoS execution rule is received from the third network element during the establishment process of the N4 session or the modification process of the N4 session.

14. The method according to any one of claims 11 to 13, characterized in that: The QoS execution rule is carried by at least one of the following messages: N4 association establishment request message; N4 association establishment response message; N4 session establishment request message; N4 session establishment response message.

15. The method according to any one of claims 10 to 14, characterized in that: The first indication information is a DSCP marking indication.

16. The method according to any one of claims 1 to 15, characterized in that: The method further comprises: Second indication information for the first service data flow is received from a third network element, where the second indication information is used to indicate to the first network element that the first service data flow does not need to be processed by PDU set.

17. The method according to any one of claims 1 to 16, characterized in that: The first network element is the user plane function UPF; the second network element is the radio access network RAN; and the third network element is the session management function SMF.

18. A method for processing a business data stream, characterized in that: Executed by the second network element, the method includes: receiving, from the first network element, a first downlink data packet corresponding to a first protocol data unit set (PDU set), the first downlink data packet carrying a differentiated services code point (DSCP) value corresponding to the first PDU set; wherein the first PDU set is a PDU set of a first service data flow; and the first service data flow is a service data flow that needs to be processed by the PDU set; Perform PDU set processing on the first downlink data packet based on the DSCP value.

19. The method according to claim 18, characterized in that The DSCP value is determined by first information corresponding to the first PDU set, where the first information includes information related to quality of service QoS.

20. The method according to claim 19, characterized in that The first information includes at least one of the following: Protocol Description PDU sets specific QoS characteristics; PDU set information.

21. The method according to claim 20, characterized in that The protocol description information includes at least one of the following: Media type Codec information.

22. The method according to claim 20 or 21, characterized in that The PDU set specific QoS feature includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; PDU set comprehensive processing information PSIHI.

23. The method according to any one of claims 20 to 22, characterized in that: The PDU set information includes at least one of the following: PDU set serial number; A PDU sequence number in the first PDU set; The data size of the PDU Set; A first identifier; the first identifier is used to indicate the last PDU in the first PDU set; Second identification; The second identifier is used to indicate the relative importance of the first PDU Set compared with other PDU sets in the corresponding QoS flow.

24. The method according to any one of claims 18 to 23, characterized in that: The DSCP value is located in an outer header of the first downlink data packet.

25. The method according to any one of claims 18 to 24, characterized in that: The first downlink data packet is a downlink data message received from the N3 interface or the N9 interface.

26. A method for processing a business data stream, characterized in that: Executed by a third network element, the method includes: Sending first indication information for a first service data flow to a first network element, wherein the first indication information is used to indicate to the first network element that the first service data flow needs to be processed by PDU set, so that the first network element determines a differentiated service code point DSCP value corresponding to a first protocol data unit set PDU set, marks the DSCP value on a first downlink data packet corresponding to the first PDU set, and sends the marked first downlink data packet to a second network element; wherein the first PDU set is the PDU set of the first service data flow.

27. The method according to claim 26, characterized in that The DSCP value is determined by first information corresponding to the first PDU set, where the first information includes information related to quality of service QoS.

28. The method according to claim 27, characterized in that The first information includes at least one of the following: Protocol Description PDU sets specific QoS characteristics; PDU set information.

29. The method according to claim 28, characterized in that The protocol description information includes at least one of the following: Media type Codec information.

30. The method according to claim 28 or 29, characterized in that The PDU set specific QoS feature includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; PDU set comprehensive processing information PSIHI.

31. The method according to any one of claims 28 to 30, characterized in that: The PDU set information includes at least one of the following: PDU set serial number; A PDU sequence number in the first PDU set; The data size of the PDU Set; A first identifier; the first identifier is used to indicate the last PDU in the first PDU set; Second identification; The second identifier is used to indicate the relative importance of the first PDU Set compared with other PDU sets in the corresponding QoS flow.

32. The method according to any one of claims 26 to 31, characterized in that: The DSCP value is located in an outer header of the first downlink data packet.

33. The method according to any one of claims 26 to 32, characterized in that: The first downlink data packet is a downlink data message received from the N3 interface or the N9 interface.

34. The method according to any one of claims 26 to 33, characterized in that: The sending first indication information for the first service data flow to the first network element includes: Sending a QoS execution rule to the first network element, where the QoS execution rule includes first indication information for the first service data flow.

35. The method according to claim 34, characterized in that The QoS execution rule also includes at least one of the following: N4 session identifier; Rule identification; QoS flow identifier.

36. The method according to claim 34 or 35, characterized in that The sending of the QoS execution rule to the first network element comprises: The QoS execution rules are sent to the first network element during the establishment process of the N4 session or the modification process of the N4 session.

37. The method according to any one of claims 34 to 36, characterized in that: The QoS execution rule is carried by at least one of the following messages: N4 association establishment request message; N4 association establishment response message; N4 session establishment request message; N4 session establishment response message.

38. The method according to any one of claims 26 to 37, characterized in that: The method further comprises: Send second indication information for the first service data flow to the first network element, where the second indication information is used to indicate to the first network element that the first service data flow does not need to be processed by PDU set.

39. A device for processing a service data stream, characterized in that: include: A processing module, configured to determine a differentiated services code point DSCP value corresponding to a first protocol data unit set PDU set; wherein the first PDU set is a PDU set of a first service data flow; and the first service data flow is a service data flow that needs to be processed by PDU set; The transceiver module is used to mark the DSCP value on the first downlink data packet corresponding to the first PDU set.

40. A device for processing a service data stream, characterized in that: include: a transceiver module, configured to receive a first downlink data packet corresponding to a first protocol data unit set PDU set from the first network element, wherein the first downlink data packet carries a differentiated services code point DSCP value corresponding to the first PDU set; wherein the first PDU set is a PDU set of a first service data flow; and the first service data flow is a service data flow that needs to be processed by the PDU set; A processing module is used to perform PDU set processing on the first downlink data packet based on the DSCP value.

41. A device for processing a service data stream, characterized in that: include: A processing module, used for determining a first service data flow; A transceiver module is used to send first indication information for a first service data flow to a first network element, wherein the first indication information is used to indicate to the first network element that the first service data flow needs to be processed by PDU set, so that the first network element determines the differentiated service code point DSCP value corresponding to the first PDU set, marks the DSCP value on the first downlink data packet corresponding to the first PDU set, and sends the marked first downlink data packet to the second network element; wherein the first PDU set is the PDU set of the first service data flow.

42. A communication device, characterized in that: include: one or more processors; Wherein, the communication device is used to execute the service data flow processing method described in any one of claims 1-17, and / or the service data flow processing method described in any one of claims 18-25, and / or the service data flow processing method described in any one of claims 26-38.

43. A communication system, characterized in that: It includes a first network element, a second network element and a third network element, wherein the first network element is configured to implement the method for processing the service data flow described in any one of claims 1-17, the second network element is configured to implement the method for processing the service data flow described in any one of claims 18-25, and the third network element is configured to implement the method for processing the service data flow described in any one of claims 26-37.

44. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device executes the method for processing a business data flow described in any one of claims 1 to 17, and / or the method for processing a business data flow described in any one of claims 18 to 25, and / or the method for processing a business data flow described in any one of claims 26 to 37.

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