Communication method, first network element, second network element, communication system and storage medium

Abstract

The invention relates to a communication method, a first network element, a second network element, a communication system and a storage medium. The method comprises: sending first information, the first information being used for indicating a first data stream in multiplexed data streams, the first data stream corresponding to a first QoS stream. According to the scheme of the invention, the support of different QoS characteristics of the multiplexing data stream is realized.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular, to a communication method, a first network element, a second network element, a communication system, and a storage medium. Background Art

[0002] In communication technologies such as the fifth generation mobile networks (5G), mobile media services, online extended reality (XR), online games, video-based machine or drone remote control, etc. are expected to contribute more and more traffic to the communication network.

[0003] Currently, due to the characteristics of high throughput, low latency, and high reliability requirements of XRM and interactive media services, it is necessary to comprehensively consider the quality of service (QoS) characteristics of different service data flows (SDFs) in a service. Summary of the Invention

[0004] Embodiments of the present disclosure propose a communication method, a first network element, a second network element, a communication system, and a storage medium to provide support for different QoS characteristics of multiplexed data streams.

[0005] According to a first aspect of the embodiments of the present disclosure, a communication method is provided. The communication method is applied to a first network element. The communication method includes: sending first information, where the first information is used to indicate a first data stream in a multiplexed data stream, and the first data stream corresponds to a first QoS flow.

[0006] According to a second aspect of the embodiments of the present disclosure, a communication method is provided. The communication method is applied to a second network element. The communication method includes: receiving first information, where the first information is used to indicate a first data stream in a multiplexed data stream, and the first data stream corresponds to a first QoS flow.

[0007] According to a third aspect of the embodiments of the present disclosure, a communication method is provided. The communication method is applied to a core network. The core network includes a first network element and a second network element. The communication method includes: the first network element sending first information to the second network element, where the first information is used to indicate a first data stream in a multiplexed data stream, and the first data stream corresponds to a first QoS flow.

[0008] According to a fourth aspect of the embodiments of the present disclosure, a first network element is provided. The first network element includes a transceiver module configured to send first information, where the first information is used to indicate a first data stream in a multiplexed data stream, and the first data stream corresponds to a first QoS flow.

[0009] According to a fifth aspect of the embodiments of the present disclosure, a second network element is provided. The second network element includes a transceiver module configured to receive first information, where the first information is used to indicate a first data stream in a multiplexed data stream, and the first data stream corresponds to a first QoS flow.

[0010] According to a sixth aspect of the embodiments of the present disclosure, a first network element is provided. The first network element includes one or more processors and a memory storing instructions. When the instructions are executed by the first network element, the first network element implements the communication method as described in the first aspect.

[0011] According to a seventh aspect of the embodiments of the present disclosure, a second network element is provided. The second network element includes one or more processors and a memory storing instructions. When the instructions are executed by the second network element, the second network element implements the communication method as described in the second aspect.

[0012] According to an eighth aspect of the embodiments of the present disclosure, a communication system is provided. The communication system includes a first network element and a second network element. The first network element is used to implement the communication method as described in the first aspect. The second network element is used to implement the communication method as described in the second aspect.

[0013] According to a ninth aspect of the embodiments of the present disclosure, a storage medium is provided. The storage medium stores instructions. When the instructions run on a communication device, the communication device is caused to execute the communication method as described in any one of the first aspect to the third aspect.

[0014] According to a tenth aspect of the embodiments of the present disclosure, a program product is provided. When the program product is executed by a communication device, the communication device is caused to execute the communication method as described in any one of the first aspect to the third aspect.

[0015] According to an eleventh aspect of the embodiments of the present disclosure, a computer program is provided. When the computer program runs on a computer, the computer is caused to execute the communication method as described in any one of the first aspect to the third aspect.

[0016] According to a twelfth aspect of the embodiments of the present disclosure, a chip or a chip system is provided. The chip or the chip system includes a processing circuit. The processing circuit is configured to execute the communication method as described in any one of the first aspect to the third aspect.

[0017] Through the embodiments of the present disclosure, each data stream in the multiplexed data stream can be mapped to a corresponding QoS flow.

[0018] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not constitute a limitation to the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following introduces the drawings required for the description of the embodiments. The following drawings are only some embodiments of the present disclosure and do not specifically limit the protection scope of the present disclosure.

[0020] Figure 1A is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0021] Figure 1B is a schematic diagram of the architecture of an implementation manner of a communication system provided according to an embodiment of the present disclosure.

[0022] Figure 1C is a schematic diagram of the architecture of another implementation manner of a communication system provided according to an embodiment of the present disclosure.

[0023] Figure 2A is an interaction schematic diagram of a communication method provided according to an embodiment of the present disclosure.

[0024] Figure 2B is an interaction schematic diagram of a communication method provided according to an embodiment of the present disclosure.

[0025] Figure 3A is a flowchart of a communication method provided according to an embodiment of the present disclosure.

[0026] Figure 3B is a flowchart of a communication method provided according to an embodiment of the present disclosure.

[0027] Figure 4A is a flowchart of a communication method provided according to an embodiment of the present disclosure.

[0028] Figure 4B is a flowchart of a communication method provided according to an embodiment of the present disclosure.

[0029] Figure 5 is an interaction schematic diagram of a communication method provided according to an embodiment of the present disclosure.

[0030] Figure 6A is an interaction schematic diagram of an exemplary implementation manner of a communication method provided according to an embodiment of the present disclosure.

[0031] Figure 6B is an interaction schematic diagram of an exemplary implementation manner of a communication method provided according to an embodiment of the present disclosure.

[0032] Figure 6CIt is an interaction schematic diagram of an exemplary embodiment of a communication method provided by an embodiment of the present disclosure.

[0033] Figure 7A It is a schematic structural diagram of a first network element provided by an embodiment of the present disclosure.

[0034] Figure 7B It is a schematic structural diagram of a second network element provided by an embodiment of the present disclosure.

[0035] Figure 8A It is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.

[0036] Figure 8B It is a schematic structural diagram of a chip provided by an embodiment of the present disclosure. Specific embodiments

[0037] Embodiments of the present disclosure provide a communication method, a first network element, a second network element, a communication system, and a storage medium.

[0038] In a first aspect, embodiments of the present disclosure provide a communication method. The communication method is applied to a first network element. The communication method includes: sending first information, where the first information is used to indicate a first data stream in a multiplexed data stream, and the first data stream corresponds to a first QoS flow.

[0039] According to the above embodiment, the first information can be used to indicate the first data stream in the multiplexed data stream. In this way, the first information enables the first data stream to be identified in traffic detection and the first data stream to be routed / mapped to the corresponding first QoS flow. In this way, it can be ensured that each data stream in the multiplexed data stream is mapped to the corresponding QoS flow, thereby realizing the support of different QoS characteristics of the multiplexed data stream.

[0040] Combined with some embodiments of the first aspect, in some embodiments, the first information may include at least one of the following: first indication information for indicating an Internet Protocol (IP) connection carrying the first data stream; second indication information for indicating an IP flow carrying the first data stream; third indication information for indicating an IP frame carrying the first data stream.

[0041] According to the above embodiment, the first information can be used to indicate one or more of an IP connection, an IP flow, and an IP frame. The first information enables the first data stream to be identified from at least one of the three levels of IP connection, IP flow, and IP frame, thereby realizing traffic detection with different granularities.

[0042] In some embodiments in combination with some embodiments of the first aspect, the first indication information may include a connection identifier of an IP connection, the second indication information may include a flow identifier of an IP flow, and the third indication information may include a frame type of an IP frame.

[0043] In some embodiments in combination with some embodiments of the first aspect, the first information may further include indication information of a first QoS flow.

[0044] According to the above embodiments, while indicating the first data flow, the first information may further include indication information of the first QoS flow. In this way, the first information may indicate that the first data flow is associated with the first QoS flow. In this manner, after the first data flow is identified based on the first information, the first data flow may be mapped to the first QoS flow corresponding to the indication information, thereby implementing traffic mapping of the first data flow.

[0045] In some embodiments in combination with some embodiments of the first aspect, the first information may be included in at least one of the following: a packet detection rule; traffic detection information.

[0046] According to the above embodiments, the first information may be included in a packet detection rule or traffic detection information. In this way, in different scenarios, the first information may be included in different rules or information. This can enhance the applicability of the transmission of the first information.

[0047] In some embodiments in combination with some embodiments of the first aspect, the first information may be included in a packet filtering set of a packet detection rule.

[0048] According to the above embodiments, the first information may be included in a packet filtering set in a packet detection rule. In this way, information related to traffic detection and processing of data packets may be integrated together, facilitating the acquisition of the first information. In addition, by modifying the format of the existing packet filtering set, the transmission of the first information may be achieved, ensuring the compatibility of the first information with existing specifications.

[0049] In some embodiments in combination with some embodiments of the first aspect, the first information may be sent to a second network element through an N4 interface; wherein, the first network element may be used to implement packet data unit (PDU) session management, and the second network element may be used to implement QoS processing.

[0050] In some embodiments in combination with some embodiments of the first aspect, the transmission of the first information may be achieved through one of the following methods: an N4 association establishment process; an N4 session establishment process; an N4 session modification process.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, the above method may further include: receiving second information, where the second information is used to indicate QoS information.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the second information may include at least one of the following: QoS requirements, used to indicate the mapping requirements of the multiplexed data stream; QoS rules, used to indicate the mapping strategy of the multiplexed data stream.

[0053] In a second aspect, embodiments of the present disclosure provide a communication method. The communication method is applied to a second network element. The above communication method includes: receiving first information, where the first information is used to indicate a first data stream in the multiplexed data stream, and the first data stream corresponds to a first QoS flow.

[0054] According to the above embodiments, the first information can be used to indicate the first data stream in the multiplexed data stream. In this way, the first information enables the second network element to identify the first data stream in traffic detection and route / map the first data stream to the corresponding first QoS flow. In this way, it can be ensured that each data stream in the multiplexed data stream is mapped to the corresponding QoS flow, thereby realizing the support for different QoS characteristics of the multiplexed data stream.

[0055] In conjunction with some embodiments of the second aspect, in some embodiments, the first information may include at least one of the following: first indication information, used to indicate the IP connection carrying the first data stream; second indication information, used to indicate the IP flow carrying the first data stream; third indication information, used to indicate the IP frame carrying the first data stream.

[0056] In conjunction with some embodiments of the second aspect, in some embodiments, the first indication information may include the connection identifier of the IP connection, the second indication information may include the flow identifier of the IP flow, and the third indication information may include the frame type of the IP frame.

[0057] In conjunction with some embodiments of the second aspect, in some embodiments, the first information may further include indication information of the first QoS flow.

[0058] In conjunction with some embodiments of the second aspect, in some embodiments, the first information may be included in at least one of the following: packet detection rules; traffic detection information.

[0059] In conjunction with some embodiments of the second aspect, in some embodiments, the first information may be included in the packet filtering set of the packet detection rules.

[0060] In conjunction with some embodiments of the second aspect, in some embodiments, the first information may be received from a first network element through the N4 interface; where the first network element is used to implement PDU session management, and the second network element is used to implement QoS processing.

[0061] In some embodiments in combination with some embodiments of the second aspect, the reception of the first information may be implemented by one of the following methods: N4 association establishment procedure; N4 session establishment procedure; N4 session modification procedure.

[0062] In some embodiments in combination with some embodiments of the second aspect, the above method may further include: determining a first data stream from the multiplexed data stream according to the first information; determining that the first data stream is mapped to a first QoS flow.

[0063] In some embodiments in combination with some embodiments of the second aspect, the first data stream may include at least one of the following: IP connection, IP flow, IP frame.

[0064] In a third aspect, an embodiment of the present disclosure provides a communication method. The communication method is applied to a core network. The core network includes a first network element and a second network element. The above communication method includes: the first network element sending first information to the second network element, where the first information is used to indicate a first data stream in the multiplexed data stream, and the first data stream corresponds to a first Quality of Service (QoS) flow.

[0065] In a fourth aspect, an embodiment of the present disclosure provides a first network element. The first network element includes: a transceiver module configured to send first information, where the first information is used to indicate a first data stream in the multiplexed data stream, and the first data stream corresponds to a first QoS flow.

[0066] In some embodiments in combination with some embodiments of the fourth aspect, the first information may include at least one of the following: a first indication information for indicating an IP connection carrying the first data stream; a second indication information for indicating an IP flow carrying the first data stream; a third indication information for indicating an IP frame carrying the first data stream.

[0067] In some embodiments in combination with some embodiments of the fourth aspect, the first indication information may include a connection identifier of the IP connection, the second indication information may include a flow identifier of the IP flow, and the third indication information may include a frame type of the IP frame.

[0068] In some embodiments in combination with some embodiments of the fourth aspect, the first information may further include indication information of the first QoS flow.

[0069] In some embodiments in combination with some embodiments of the fourth aspect, the first information may be included in at least one of the following: a packet detection rule; traffic detection information.

[0070] In some embodiments in combination with some embodiments of the fourth aspect, the first information may be included in a packet filtering set of the packet detection rule.

[0071] In some embodiments in combination with some embodiments of the fourth aspect, the first information may be sent to the second network element through the N4 interface; wherein, the first network element may be used to implement PDU session management, and the second network element may be used to implement QoS processing.

[0072] In some embodiments in combination with some embodiments of the fourth aspect, in some embodiments, the sending of the first information may be implemented by one of the following methods: N4 association establishment process; N4 session establishment process; N4 session modification process.

[0073] In some embodiments in combination with some embodiments of the fourth aspect, in some embodiments, the transceiver module may further be configured to: receive second information, wherein the second information is used to indicate QoS information.

[0074] In some embodiments in combination with some embodiments of the fourth aspect, in some embodiments, the second information may include at least one of the following: QoS requirement, which is used to indicate the mapping requirement of the multiplexed data stream; QoS rule, which is used to indicate the mapping strategy of the multiplexed data stream.

[0075] In a fifth aspect, embodiments of the present disclosure provide a second network element. The second network element includes: a transceiver module configured to receive first information, wherein the first information is used to indicate a first data stream in the multiplexed data stream, and the first data stream corresponds to a first QoS flow.

[0076] In some embodiments in combination with some embodiments of the fifth aspect, in some embodiments, the first information may include at least one of the following: first indication information, which is used to indicate an IP connection carrying the first data stream; second indication information, which is used to indicate an IP flow carrying the first data stream; third indication information, which is used to indicate an IP frame carrying the first data stream.

[0077] In some embodiments in combination with some embodiments of the fifth aspect, in some embodiments, the first indication information may include a connection identifier of the IP connection, the second indication information may include a flow identifier of the IP flow, and the third indication information may include a frame type of the IP frame.

[0078] In some embodiments in combination with some embodiments of the fifth aspect, in some embodiments, the first information may further include indication information of the first QoS flow.

[0079] In some embodiments in combination with some embodiments of the fifth aspect, in some embodiments, the first information may be included in at least one of the following: packet detection rule; traffic detection information.

[0080] In some embodiments in combination with some embodiments of the fifth aspect, in some embodiments, the first information may be included in the packet filtering set of the packet detection rule.

[0081] In some embodiments in combination with some embodiments of the fifth aspect, the first information may be received from a first network element via the N4 interface; wherein, the first network element is used to implement PDU session management, and the second network element is used to implement QoS processing.

[0082] In some embodiments in combination with some embodiments of the fifth aspect, the reception of the first information may be implemented by one of the following methods: N4 association establishment process; N4 session establishment process; N4 session modification process.

[0083] In some embodiments in combination with some embodiments of the fifth aspect, the transceiver module may further be configured to: determine a first data stream from the multiplexed data stream according to the first information; determine that the first data stream is mapped to a first QoS flow.

[0084] In some embodiments in combination with some embodiments of the fifth aspect, the first data stream may include at least one of the following: IP connection, IP flow, IP frame.

[0085] In a sixth aspect, embodiments of the present disclosure provide a first network element. The first network element includes: one or more processors, and a memory storing instructions. When the instructions are executed by the first network element, the first network element implements the communication method as described in any one of the first aspect and its possible implementation manners.

[0086] In a seventh aspect, embodiments of the present disclosure provide a second network element. The second network element includes: one or more processors, and a memory storing instructions. When the instructions are executed by the second network element, the second network element implements the communication method as described in any one of the second aspect and its possible implementation manners.

[0087] In an eighth aspect, embodiments of the present disclosure provide a communication system. The communication system includes a first network element and a second network element. The first network element is used to implement the communication method as described in any one of the first aspect and its possible implementation manners. The second network element is used to implement the communication method as described in any one of the second aspect and its possible implementation manners.

[0088] In a ninth aspect, embodiments of the present disclosure provide a storage medium. The storage medium stores instructions. When the instructions run on a communication device, the communication device executes the communication method as described in any one of the first aspect to the third aspect and their possible implementation manners.

[0089] In a tenth aspect, embodiments of the present disclosure provide a program product. When the program product is executed by a communication device, the communication device executes the communication method as described in any one of the first aspect to the third aspect and their possible implementation manners.

[0090] In an eleventh aspect, an embodiment of the present disclosure provides a computer program. When running on a computer, the computer program causes the computer to execute the communication method described in any one of the first aspect to the third aspect and its possible implementations.

[0091] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system. The chip or the chip system includes a processing circuit. The processing circuit is configured to execute the communication method described in any one of the first aspect to the third aspect and its possible implementations.

[0092] It can be understood that the above-mentioned first network element, second network element, communication system, storage medium, program product, computer program, chip, and chip system are all used to execute the communication method provided by the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be elaborated here.

[0093] Embodiments of the present disclosure propose a communication method, a first network element, a second network element, a communication system, and a storage medium. In some embodiments, terms such as communication method and information processing method, communication method, etc. can be replaced with each other, terms such as network element and information processing device, communication device, etc. can be replaced with each other, and terms such as information processing system, communication system, etc. can be replaced with each other.

[0094] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and do not constitute a specific limitation on the protection scope of the present disclosure. Without contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily. For example, the 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 exchanged arbitrarily. In addition, the optional implementation manners in a certain embodiment can be combined arbitrarily. Furthermore, the embodiments can be combined arbitrarily. For example, some or all of the steps of different embodiments can be combined arbitrarily. For another example, a certain embodiment can be combined arbitrarily with the optional implementation manners of other embodiments.

[0095] In each embodiment of the present disclosure, if there is no special description and logical conflict, the terms and / or descriptions between the embodiments are consistent and can be cited from each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0096] 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.

[0097] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above-mentioned", "said", "aforementioned", "this", etc., may mean "one and only one", or may also mean "one or more", "at least one", etc. For example, when using articles (such as "a", "an", "the" in English) in translation, the noun following the article can be understood as a singular form of expression or a plural form of expression.

[0098] In the embodiments of the present disclosure, "a plurality of" means two or more.

[0099] In some embodiments, terms such as "at least one (at least one item, at least one, at least one of)", "one or more", "a plurality of", "multiple", etc. may be used interchangeably.

[0100] In some embodiments, notations such as "at least one of A and B", "A and / or B", "in one case A, in another case B", "in response to one case A, in response to another case B", etc. may, depending on the circumstances, include the following technical solutions: In some embodiments, A (performing A independently of B); in some embodiments, B (performing B independently of A); in some embodiments, selecting to perform from A and B (A and B are selectively performed); in some embodiments, A and B (both A and B are performed). The same is true when there are more branches such as A, B, C, etc.

[0101] In some embodiments, notations such as "A or B" may, depending on the circumstances, include the following technical solutions: In some embodiments, A (performing A independently of B); in some embodiments, B (performing B independently of A); in some embodiments, selecting to perform from A and B (A and B are selectively performed). The same is true when there are more branches such as A, B, C, etc.

[0102] The prefix words such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different described objects, and do not limit the position, order, priority, quantity, content, etc. of the described objects. The description of the described objects refers to the description in the context of the claims or embodiments, and no redundant limitation should be formed due to the use of prefix words. For example, if the described object is "field", the ordinal numbers before "field" in "first field" and "second field" do not limit the position or order between the "fields", and "first" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of "first field" and "second field". Another example, if the described object is "level", the ordinal numbers before "level" in "first level" and "second level" do not limit the priority between the "levels". Another example, the quantity of the described object is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different. For example, if the described object is "device", "first device" and "second device" can be the same device or different devices, and their types can be the same or different; another example, if the described object is "information", "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0103] In some embodiments, "including A", "containing A", "used to indicate A", "carrying A" can be interpreted as directly carrying A or indirectly indicating A.

[0104] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "when...", "when...", "if...", "if..." can be replaced with each other.

[0105] 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 lower than", "above", etc. 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", "below", etc. can be replaced with each other.

[0106] In some embodiments, a device, etc. can be interpreted as either physical or virtual, and its name is not limited to the names described in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc. can be used interchangeably.

[0107] In some embodiments, a "network" can be interpreted as the devices included in the network (e.g., access network devices, core network devices, etc.).

[0108] In some embodiments, terms such as "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)", etc. can be used interchangeably.

[0109] In some embodiments, terms such as "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. may be used interchangeably.

[0110] In some embodiments, an access network device, a core network device, or a network device may be replaced by a terminal. For example, for a structure in which communication between an access network device, a core network device, or a network device and a terminal is replaced with communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.), the embodiments of the present disclosure may also be applied. In this case, it may also be configured that the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" may also be replaced with terms corresponding to communication between terminals (e.g., "side"). For example, an uplink channel, a downlink channel, etc. may be replaced with a side channel, and an uplink, a downlink, etc. may be replaced with a side link.

[0111] In some embodiments, a terminal may be replaced by an access network device, a core network device, or a network device. In this case, it may also be configured that the access network device, the core network device, or the network device has all or part of the functions of the terminal.

[0112] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where it is located.

[0113] In some embodiments, data, information, etc. may be obtained after obtaining the user's consent.

[0114] In addition, each element, each row, or each column in the tables of the embodiments of the present disclosure may be implemented as an independent embodiment, and any combination of any element, any row, or any column may also be implemented as an independent embodiment.

[0115] Figure 1A is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure. As Figure 1A shown, the communication system 100 includes a first network element 101, a second network element 102, and a third network element 103.

[0116] In some embodiments, some or all of the first network element 101, the second network element 102, and the third network element 103 may be located in the core network. The core network may be a single device in which the first network element 101, the second network element 102, the third network element 103, etc. are integrated, or may be multiple devices or a group of devices, respectively including all or part of the first network element 101, the second network element 102, the third network element 103, etc. The core network may be virtual or physical. The core network includes, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0117] In some embodiments, the first network element 101 may, for example, be a session management function (SMF).

[0118] In some embodiments, the first network element 101 may be used for functions such as session management, execution of PCF-derived control policies, selection of UPF, and allocation of UE IP addresses, and the name is not limited thereto.

[0119] In some embodiments, the second network element 102 may, for example, be a user plane function (UPF).

[0120] In some embodiments, the second network element 102 may be used to implement functions such as user plane (UP) data forwarding, session / flow-level billing statistics, bandwidth limitation, and QoS processing of the UP, and the name is not limited thereto.

[0121] In some embodiments, the third network element 103 may be, for example, a Policy Control Function (PCF).

[0122] In some embodiments, the third network element 103 may be used to support a unified policy framework and provide policy rules, and the name is not limited thereto.

[0123] In some embodiments, the third network element 103 may be, for example, an Access and Mobility Management Function (AMF).

[0124] In some embodiments, the third network element 103 may be used to support a unified policy framework and provide policy rules, and the name is not limited thereto.

[0125] In some embodiments, the third network element 103 may be used to complete mobility management, non-access stratum mobility management (NAS MM) signaling processing, NAS session management (SM) signaling routing, security anchor and security context management, etc., and the name is not limited thereto.

[0126] In some embodiments, the above communication system 100 may be a 5G communication system. It should be noted that the communication system 100 may also be other communication systems, such as a 4G communication system or a 6G communication system, and the embodiments of the present disclosure do not make specific limitations thereto.

[0127] In Figure 1B and 1C , taking the 5G communication system as an example, the architecture of the communication system is described exemplarily. Here, the terminal may be a UE, and the access network device may be a RAN.

[0128] Figure 1B is a schematic diagram of the architecture of an implementation manner of the communication system provided according to the embodiments of the present disclosure. As Figure 1B shown, the architecture of the 5G communication system is presented in the form of reference points.

[0129] N1 is the reference point between the UE and the AMF. N2 is the reference point between the RAN and the AMF. N3 is the reference point between the RAN and the UPF. N4 is the reference point between the SMF and the UPF. N5 is the reference point between the PCF and the AF. N6 is the reference point between the UPF and the data network (DN). N7 is the reference point between the SMF and the PCF. N11 is the reference point between the AMF and the SMF. N15 is the reference point between the SMF and the PCF. Uu is the interface between the UE and the RAN.

[0130] It should be noted that NEF is not shown in Figure 1B . However, each core network device in the communication system can interact with NEF.

[0131] Figure 1C It is a schematic diagram of the architecture of another implementation manner of the communication system provided by the embodiments of the present disclosure. As Figure 1C shown, the architecture of the 5G communication system is presented in the form of service-based interfaces.

[0132] Namf is a service-based interface provided by AMF. Nsmf is a service-based interface provided by SMF. Nnef is a service-based interface provided by NEF. Npcf is a service-based interface provided by PCF. Naf is a service-based interface provided by AF.

[0133] It can be understood that the communication system described in the embodiments of the present disclosure is to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed in the embodiments of the present disclosure. Those of ordinary skill in the art know that with the evolution of the system architecture and the emergence of new service scenarios, the technical solutions proposed in the embodiments of the present disclosure are equally applicable to similar technical problems.

[0134] The following embodiments of the present disclosure can be applied to Figure 1A the communication system 100 shown in, or some of the main bodies in the communication system 100, but not limited thereto. Figure 1A The main bodies shown in are examples. The communication system 100 may include Figure 1A all or some of the main bodies in, or may also include Figure 1A other main bodies outside. The number and form of each main body are arbitrary. Each main body can be physical or virtual. The connection relationship between each main body is an example. Each main body can be not connected or connected. Their connection can be in any way, either directly connected or indirectly connected, either wired connected or wireless connected.

[0135] 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) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), systems using other communication methods, next-generation systems extended based on them, etc. In addition, multiple systems can be combined (for example, a combination of LTE or LTE-A and 5G, etc.) and applied.

[0136] In some cases, services such as mobile media, XR services such as online AR / VR, online games, and remote control of machines or drones based on video are expected to contribute increasingly high traffic to the communication network. XR services involve multi-modal data streams. Multi-modal data refers to data input from the same device or different devices (including sensors) that describe the same service / application, and this data may be output to one or more destination device terminals. The data streams in multi-modal data often have a certain or even strong correlation, such as the synchronization of audio and video streams, and the synchronization of touch and vision. There are some common characteristics in the data streams of such media services themselves, among the data streams, and the network transmission requirements of these service data streams. The effective identification and utilization of these characteristics will be more conducive to the transmission and control of the network and services, and also more conducive to service guarantee and user experience.

[0137] In a further scenario, XRM services and interactive media services require the communication system to comprehensively consider the QoS characteristics of the service data streams. Such QoS characteristics include, for example, at least one of the following: whether parameters such as delay-sensitive guaranteed bitrate (GBR) data streams, guaranteed flow bit rate (GFBR), Packet Delay Budget (PDB), and default Maximum Data Burst Volume (MDBV) can be simultaneously satisfied and coordinated. The consistency guarantee of QoS authorization and execution between multiple XRM data streams of one terminal and XRM data streams of multiple terminals.

[0138] In some embodiments, the SDF of XRM can support processing based on a PDU set (PDU set), thereby enhancing the QoS awareness and guarantee of the SDF and enhancing the quality of experience (QoE) of users.

[0139] In some embodiments, in systems such as 4G, 5G, 6G, V2X, etc., the AF may provide PDU set QoS parameters and a protocol description. In some embodiments, the PDU set QoS parameters may include at least one of the following: PDU set delay budget (PSDB), PDU set error rate (PSER), PDU Set Integrated Handling Information (PSIHI). Then, the SMF and the UPF may expand the packet headers of the PDUs in the PDU set of the SDF by combining the protocol description provided by the AF and the protocol header extension to carry PDU set information. The carried PDU information may be used by the access network for PDU set-based QoS control.

[0140] In some embodiments, the above PDU information may include at least one of the following: PDU set sequence number, start PDU or end PDU of the PDU set, PDU sequence number within the PDU set, number of PDUs within the PDU set, PDU set importance, PDU set size. Here, the PDU set importance is used to characterize the importance of a PDU set relative to other PDU sets in the same QoS flow.

[0141] It can be understood that the UPF performs the mapping of the SDF to the QoS flow based on the PDR and maps (which can also be referred to as encapsulates) the associated PDUs into the PDU set. In addition, the UPF may adopt the same QoS policy for all PDU sets within the QoS flow. For example, the UPF may apply the same PDU set QoS parameters to all PDU sets within the QoS flow. In one example, the UPF may map the application flow to the QoS flow based on the packet detection information in the PDR. Some PDUs in the QoS flow may be associated with media components (such as intra-coded frames and predicted frames), and the UPF classifies these PDUs as belonging to the PDU set and performs corresponding control.

[0142] In some cases, the XRM service can be a multimedia - type service corresponding to multiple data streams. These data streams can be multiplexed and transmitted in the same quintet. This quintet constitutes an end - to - end transport - layer connection. In this case, one or more data streams multiplexed in an end - to - end transport - layer connection (e.g., a quintet) can be called multiplexed data streams. In one example, the quintet can be a quintet conforming to the Quick UDP Internet Connections (QUIC) protocol. In some embodiments, different data streams of the XRM service may have different QoS requirements. Then, different data streams can use different QUIC connections or different QUIC streams for transmission. This requires the QoS architecture of the communication system to provide support for QoS classification in this scenario.

[0143] Figure 2A is an interaction schematic diagram of the communication method provided according to an embodiment of the present disclosure. The communication method involved in the embodiments of the present disclosure can be applied to the communication system 100. As Figure 2A shown, the communication method of the embodiments of the present disclosure includes steps S2101 to S2105.

[0144] In step S2101, the third network element 103 sends the second information to the first network element 101.

[0145] In some embodiments, the first network element 101 receives the second information.

[0146] In some embodiments, the second information may include at least one of the following: QoS requirements, QoS rules.

[0147] In some embodiments, the QoS requirements can be used to indicate the mapping requirements of the multiplexed data streams.

[0148] In some embodiments, the QoS rules can be used to indicate the mapping strategy of the multiplexed data streams.

[0149] In some embodiments, the second information can be used to trigger the first network element 101 to establish or change a PDU session.

[0150] In some embodiments, the second information can be used to trigger the first network element 101 to establish a new PDU session. In some embodiments, the second information can be used to trigger the first network element 101 to initiate a PDU Session Establishment process.

[0151] In some embodiments, the second information may be used to trigger the first network element 101 to modify an existing PDU session. In some embodiments, the second information may be used to trigger the first network element 101 to initiate a PDU session modification process.

[0152] In some embodiments, the third network element 103 may be an AMF. In some embodiments, the second information may be carried in the Nsmf_PDUSession_UpdateSMContext request.

[0153] In some embodiments, the third network element 103 may be a PCF. In some embodiments, the second information may be carried in the Npcf_SMPolicyControl_UpdateNotify request.

[0154] In step S2102, the first network element 101 sends the first information to the second network element 102.

[0155] In some embodiments, the second network element 102 may receive the first information.

[0156] In some embodiments, the first information may be used to indicate the first data stream in the multiplexed data stream. The first data stream corresponds to the first QoS flow.

[0157] In some embodiments, the first information may be used to identify the first data stream in the multiplexed data stream.

[0158] In some embodiments, the first information may be used to perform traffic detection and / or routing on the first data in the multiplexed data stream.

[0159] In some embodiments, the name of the first information is not limited. For example, it may be identification information, recognition information, packet filtering indication information, etc.

[0160] In some embodiments, the multiplexed data stream may be an IP data stream. In one example, the multiplexed data stream may be in the form of a QUIC connection or a QUIC stream.

[0161] In some embodiments, the multiplexed data stream may include multiple levels. In one example, the multiplexed data stream may include the following three levels: IP connection, IP stream, and IP frame. One IP connection may include one or more IP streams. One IP stream may include one or more IP frames.

[0162] In some embodiments, the first information may include at least one of the following: first indication information, second indication information, and third indication information.

[0163] In some embodiments, the first indication information may be used to indicate an IP connection carrying a first data stream.

[0164] In some embodiments, the first indication information may include a connection identifier of the IP connection carrying the first data stream. In one example, the first indication information may include a connection identifier of a QUIC connection carrying the first data stream.

[0165] In some embodiments, the second indication information may be used to indicate an IP flow carrying the first data stream.

[0166] In some embodiments, the second indication information may include a flow identifier of the IP flow carrying the first data stream.

[0167] In some embodiments, the first data stream may be carried in one or more IP flows. In this case, the second indication information may include a flow identifier of one IP flow, or may include flow identifiers of multiple IP flows. In the latter case, the flow identifiers of the multiple IP flows may form a flow identifier group.

[0168] In some embodiments, the flow identifier may be used to represent a flow range. The flow range is used to indicate the range of the IP flows carrying the first data stream.

[0169] In some embodiments, the flow identifier of each IP flow in an IP connection may be unique.

[0170] In some embodiments, the flow identifier may be represented by one or more bits. In one example, the flow identifier may be represented by 62 bits. In this case, the value range of the flow identifier may be from 0 to 2 62 -1.

[0171] In some embodiments, the flow identifier information may be encoded in the form of a variable-length integer.

[0172] In some embodiments, a part of the flow identifier may be used to indicate the initiator of the IP flow corresponding to the flow identifier. In one example, since an IP connection is used to implement data transmission between two parties, the lowest bit or the highest bit in the flow identifier may be used to indicate either of the two parties. For example, when the value of the lowest bit in the flow identifier is 0, the initiator of the IP flow may be the first party of the two parties; when the value of the lowest bit in the flow identifier is 1, the initiator of the IP flow may be the second party of the two parties. In one example, the first party may be a service party and the second party may be a client party. In one example, the first party may be a client party and the second party may be a service party.

[0173] In some embodiments, the third indication information may be used to indicate an IP frame carrying the first data stream.

[0174] In some embodiments, the third indication information may include the frame type of the IP frame carrying the first data stream.

[0175] In some embodiments, the IP frame may have multiple frame types. IP frames with different frame types can be used to carry different information. In one example, different frame types may correspond to different media stream types. In one example, different frame types may correspond to different types of media data packets.

[0176] In some embodiments, the first information may be included in at least one of the following: packet detection rule (PDR), traffic detection information. It can be understood that the first information may also be included in other rules or information, and the embodiments of the present disclosure do not make specific limitations thereto.

[0177] In some embodiments, the packet detection rule may include a first field. The first field is used to carry the first information. In one example, the first field may include at least one of the following: first indication information, second indication information, third indication information.

[0178] In some embodiments, the first information may be included in a packet filter set.

[0179] In some embodiments, the packet filter set can be used to identify one or more IP data streams.

[0180] In some embodiments, the packet filter set may include one or more packet filters. Each packet filter can be used to identify the IP data stream in at least one of the uplink and downlink.

[0181] In some embodiments, the first field of the packet detection rule may correspond to the packet filter set. Then, the packet filter set may include at least one of the following: first indication information, second indication information, third indication information.

[0182] In some embodiments, the traffic detection information may include a second field. The second field is used to carry the first information. In one example, the first field may include at least one of the following: first indication information, second indication information, third indication information.

[0183] In some embodiments, the interface between the first network element 101 and the second network element 102 may be the N4 interface. In other words, the first network element 101 and the second network element 102 may interact through the N4 interface. In some embodiments, the first information may be sent by the first network element 101 to the second network element 102 through the N4 interface. In other words, the first information may be received by the second network element 102 through the N4 interface.

[0184] In some embodiments, the first information may further include indication information of a first QoS flow.

[0185] In some embodiments, the indication information of the first QoS flow may include identification information of the QoS flow.

[0186] In some embodiments, the identification information of the first QoS flow may be carried in the packet detection rule. In one example, in the packet detection rule, the identification information of the first QoS flow may include at least one of the following: 5G QoS identifier (5QI), non-standardized QoS flow identifier (QFI).

[0187] In some embodiments, the packet detection rule may further include at least one of the following: N4 session identifier, rule identifier. The N4 session identifier may be used to identify the N4 session between the first network element 101 and the second network element 102. The rule identifier may be the unique identifier of the packet detection rule.

[0188] In some embodiments, the first network element 101 may send the first information to the second network element 102 through the N4 Association Setup process. In some embodiments, the first network element 101 may send an N4 Association Setup request message to the second network element 102. The N4 Association Setup request message may carry the first information.

[0189] In some embodiments, the first network element 101 may send the first information to the second network element 102 through the N4 Session Establishment process. In some embodiments, the first network element 101 may send an N4 Session Establishment request message to the second network element 102. The N4 Session Establishment request message may carry the first information.

[0190] In some embodiments, the first network element 101 may send the first information to the second network element 102 through the N4 Session Modification process. In some embodiments, the first network element 101 may send an N4 Session Modification request message to the second network element 102. The N4 Session Modification request message may carry the first information.

[0191] In step S2103, the second network element 102 determines the mapping of the multiplexed data stream.

[0192] In some embodiments, the second network element 102 may determine a first data stream from the multiplexed data stream and determine that the first data stream is mapped to the first QoS flow.

[0193] In some embodiments, the operation of determining the first data stream from the multiplexed data stream may be implemented based on the first information. In some embodiments, the second network element 102 may identify the first data stream corresponding to the first information in the multiplexed data stream according to the first information.

[0194] In some embodiments, the first data stream may include at least one of the following: IP connection, IP flow, IP frame. In one example, the first information may include a connection identifier, and the second network element 102 may determine the IP connection corresponding to the connection identifier as the first data stream. In one example, the first information may include a connection identifier and a flow identifier, and the second network element 102 may determine the IP flow corresponding to the flow identifier in the IP connection corresponding to the connection identifier as the first data stream. In one example, the first information may include a connection identifier, a flow identifier, and a frame type, and the second network element 102 may determine the IP frame corresponding to the frame type in the IP flow corresponding to the connection identifier and the flow identifier as the first data stream.

[0195] In step S2104, the second network element 102 sends the third information to the first network element 101.

[0196] In some embodiments, the first network element 101 may receive the third information.

[0197] In some embodiments, the third information may be a response of the second network element 102 to the first information.

[0198] In some embodiments, the third information may be carried in an N4 association establishment response message.

[0199] In some embodiments, the third information may be carried in an N4 session establishment response message.

[0200] In some embodiments, the third information may be carried in an N4 association modification response message.

[0201] In step S2105, the first network element 101 sends the fourth information to the third network element 103.

[0202] In some embodiments, the first network element 101 may continue to interact with the third network element 103 through the fourth information.

[0203] In some embodiments, the third network element 103 may receive the fourth information.

[0204] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2105. For example, step S2102 may be implemented as an independent embodiment. For example, the combination of steps S2102 and S2103 may be implemented as an independent embodiment. It should be noted that the possible independent embodiments composed of one or more of steps S2101 to S2105 are not limited to this.

[0205] In some embodiments, at least two of steps S2101 to S2105 may be exchanged in order or executed synchronously. For example, steps S2103 and S2104 may be exchanged in order or executed simultaneously.

[0206] In some embodiments, steps S2101, S2103, S2104, and S2105 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0207] Figure 2B is an interaction schematic diagram of the communication method provided according to the embodiments of the present disclosure. The communication method involved in the embodiments of the present disclosure may be applied to the communication system 100. As Figure 2B shown, the communication method of the embodiments of the present disclosure includes steps S2201 to S2203.

[0208] In step S2201, the second network element 102 sends the third information to the first network element 101.

[0209] In some embodiments, the first network element 101 may receive the third information.

[0210] In some embodiments, the third information may be used to request the first information from the first network element 101.

[0211] In some embodiments, the name of the third information is not limited. For example, it may be rule request information, rule query information, etc.

[0212] In some embodiments, the interface between the first network element 101 and the second network element 102 may be the N4 interface. In other words, the first network element 101 and the second network element 102 may interact through the N4 interface. In some embodiments, the third information may be sent by the second network element 102 to the first network element 101 through the N4 interface. In other words, the third information may be received by the first network element 101 through the N4 interface.

[0213] In some embodiments, the second network element 102 may send third information to the first network element 101 through an N4 association setup process. In some embodiments, the second network element 102 may send an N4 association setup request message to the first network element 101. The N4 association setup request message may carry the third information.

[0214] In step S2202, the first network element 101 sends first information to the second network element 102.

[0215] For the optional implementation manners of step S2202, reference may be made to Figure 2A the optional implementation manners of step S2102, and Figure 2A other associated parts in the embodiments involved. Details are not described herein again.

[0216] In some embodiments, the first information may be carried in an N4 association setup response message.

[0217] In step S2203, the second network element 102 determines the mapping of the multiplexed data stream.

[0218] For the optional implementation manners of step S2203, reference may be made to Figure 2A the optional implementation manners of step S2103, and Figure 2A other associated parts in the embodiments involved. Details are not described herein again.

[0219] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2201 to S2203. For example, step S2202 may be implemented as an independent embodiment. For example, the combination of steps S2202 and S2203 may be implemented as an independent embodiment. It should be noted that the possible independent embodiments composed of one or more of steps S2201 to S2203 are not limited thereto.

[0220] In some embodiments, steps S2201 and S2203 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0221] In some embodiments, the names of information and the like 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", "codebook", "codeword", "codepoint", "bit", "data", "program", "chip", etc. can be replaced with each other.

[0222] In some embodiments, terms such as "uplink", "uplink link", "physical uplink" can be replaced with each other, and terms such as "downlink", "downlink link", "physical downlink" can be replaced with each other. Terms such as "side", "sidelink", "sidelink communication", "sidelink communication", "direct", "direct link", "direct communication", "direct link communication" can be replaced with each other.

[0223] In some embodiments, terms such as "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" can be replaced with each other.

[0224] In some embodiments, terms such as "moment", "time point", "time", "time position" can be replaced with each other, and terms such as "duration", "time period", "time window", "window", "time" can be replaced with each other.

[0225] In some embodiments, "acquire", "obtain", "get", "receive", "transmit", "two-way transmission", "send and / or receive" can be replaced with each other, and it can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, self-processing to obtain, self-implementation, etc.

[0226] In some embodiments, terms such as "send", "transmit", "report", "send down", "transmit", "two-way transmission", "send and / or receive" can be replaced with each other.

[0227] In some embodiments, terms such as "certain", "preset", "predetermined", "set", "indicated", "a certain", "any", "first", etc. may be interchangeable. "Certain A", "preset A", "predetermined A", "set A", "indicated A", "a certain A", "any A", "first A" may be interpreted as A pre-specified in a protocol or the like, or may be interpreted as A obtained through setting, configuration, indication, etc., or may be interpreted as certain A, a certain A, any A, or first A, etc., but is not limited thereto.

[0228] In some embodiments, a determination or judgment may be made by a value represented by 1 bit (0 or 1), or may be made by a true or false value (Boolean value) represented by true or false, or may be made by a comparison of numerical values (e.g., comparison with a predetermined value), but is not limited thereto.

[0229] In some embodiments, terms such as "traffic", "flow", "stream", "data stream", etc. may be interchangeable.

[0230] Figure 3A is a schematic flowchart of a communication method provided according to an embodiment of the present disclosure. Embodiments of the present disclosure relate to a communication method. This communication method is executed by a first network element 101. As Figure 3A shown, the above method includes steps S3101 to S3104.

[0231] In step S3101, second information is obtained.

[0232] An optional implementation manner of step S3101 may refer to Figure 2A the optional implementation manner of step S2101 in Figure 2A and other related parts in the embodiments involved therein, which will not be elaborated here.

[0233] In some embodiments, the first network element 101 may receive the second information sent by a third network element 103, but is not limited thereto, and may also receive the second information sent by other entities.

[0234] In step S3102, first information is sent.

[0235] An optional implementation manner of step S3102 may refer to Figure 2A the optional implementation manner of step S2102 in Figure 2A and other related parts in the embodiments involved therein, which will not be elaborated here.

[0236] In some embodiments, the first network element 101 may send the first information to the second network element 102. However, it is not limited thereto, and the first information may also be sent to other entities.

[0237] In step S3103, the third information is obtained.

[0238] For the alternative implementation manners of step S3103, reference may be made to Figure 2A the alternative implementation manners of step S2104 in Figure 2A and other related parts in the embodiments involved. Details are not described herein again.

[0239] In some embodiments, the first network element 101 may receive the third information sent by the second network element 102. However, it is not limited thereto, and the third information may also be received from other entities.

[0240] In step S3104, the fourth information is sent.

[0241] For the alternative implementation manners of step S3104, reference may be made to Figure 2A the alternative implementation manners of step S2105 in Figure 2A and other related parts in the embodiments involved. Details are not described herein again.

[0242] In some embodiments, the first network element 101 may send the fourth information to the third network element 103. However, it is not limited thereto, and the fourth information may also be sent to other entities.

[0243] The communication method according to the embodiments of the present disclosure may include at least one of steps S3101 to S3104. For example, step S3102 may be implemented as an independent embodiment. It should be noted that the possible independent embodiments composed of one or more of steps S3101 to S3104 are not limited thereto.

[0244] In some embodiments, steps S3101, S3103, and S3104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0245] Figure 3B is a schematic flowchart of the communication method according to the embodiments of the present disclosure. The embodiments of the present disclosure relate to a communication method. This communication method is executed by the first network element 101. As Figure 3B shown, the above method includes steps S3201 to S3202.

[0246] In step S3201, the third information is obtained.

[0247] For the alternative implementation manners of step S3201, reference may be made to Figure 2B the alternative implementation manners of step S2201 inFigure 2B For other related parts in the embodiments involved, they will not be elaborated here.

[0248] In some embodiments, the first network element 101 may receive the third information sent by the second network element 102. However, it is not limited thereto, and it may also receive the third information sent by other entities.

[0249] In step S3202, send the first information.

[0250] For the optional implementation manners of step S3202, reference may be made to Figure 2B the optional implementation manners of step S2202 in Figure 2B For other related parts in the embodiments involved, they will not be elaborated here.

[0251] In some embodiments, the first network element 101 may send the first information to the second network element 102. However, it is not limited thereto, and it may also send the first information to other entities.

[0252] The communication method involved in the embodiments of the present disclosure may include at least one of step S3201 to step S3202. For example, step S3202 may be implemented as an independent embodiment. It should be noted that the possible independent embodiments composed of one or more of step S3201 to step S3202 are not limited thereto.

[0253] In some embodiments, step S3201 is optional, and in different embodiments, this step may be omitted or replaced.

[0254] Figure 4A is a schematic flowchart of the communication method provided according to the embodiments of the present disclosure. The embodiments of the present disclosure relate to a communication method. This communication method is executed by the second network element 102. As Figure 4A shown, the above method includes step S4101 to step S4103.

[0255] In step S4101, obtain the first information.

[0256] For the optional implementation manners of step S4101, reference may be made to Figure 2A the optional implementation manners of step S2102 in Figure 2A For other related parts in the embodiments involved, they will not be elaborated here.

[0257] In some embodiments, the second network element 102 may receive the first information sent by the first network element 101. However, it is not limited thereto, and it may also receive the first information sent by other entities.

[0258] In step S4102, determine the mapping of the multiplexed data stream.

[0259] For the optional implementation of step S4102, reference can be made to Figure 2A the optional implementation of step S2103 in Figure 2A and other related parts in the embodiments involved. Details are not described herein again.

[0260] In some embodiments, the mapping of the multiplexed data stream can be implemented based on the first information.

[0261] In step S4103, the third information is sent.

[0262] For the optional implementation of step S4103, reference can be made to Figure 2A the optional implementation of step S2104 in Figure 2A and other related parts in the embodiments involved. Details are not described herein again.

[0263] In some embodiments, the second network element 102 can send the third information to the first network element 101, but not limited to, it can also send the third information to other entities.

[0264] The communication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4103. For example, step S4101 can be implemented as an independent embodiment. For example, the combination of steps S4101 and S4102 can be implemented as an independent embodiment. It should be noted that the possible independent embodiments composed of one or more of steps S4101 to S4103 are not limited thereto.

[0265] In some embodiments, steps S4102 and S4103 are optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0266] Figure 4B is a schematic flowchart of the communication method provided according to the embodiments of the present disclosure. The embodiments of the present disclosure relate to a communication method. This communication method is executed by the second network element 102. As Figure 4B shown, the above method includes steps S4201 to S4203.

[0267] In step S4201, the third information is sent.

[0268] For the optional implementation of step S4101, reference can be made to Figure 2B the optional implementation of step S2201 in Figure 2B and other related parts in the embodiments involved. Details are not described herein again.

[0269] In some embodiments, the second network element 102 can send the third information to the first network element 101, but not limited to, it can also send the third information to other entities.

[0270] In step S4202, obtain the first information.

[0271] For the optional implementation manners of step S4202, reference can be made to Figure 2B the optional implementation manners of step S2202 in Figure 2B and other related parts in the embodiments involved, which will not be elaborated here.

[0272] In some embodiments, the second network element 102 may receive the first information sent by the first network element 101. However, it is not limited thereto, and it may also receive the first information sent by other entities.

[0273] In step S4203, determine the mapping of the multiplexed data stream.

[0274] For the optional implementation manners of step S4203, reference can be made to Figure 2B the optional implementation manners of step S2203 in Figure 2B and other related parts in the embodiments involved, which will not be elaborated here.

[0275] In some embodiments, the mapping of the multiplexed data stream may be implemented based on the first information.

[0276] The communication method involved in the embodiments of the present disclosure may include at least one of steps S4201 to S4203. For example, step S4202 may be implemented as an independent embodiment. For example, the combination of steps S4202 and S4203 may be implemented as an independent embodiment. It should be noted that the possible independent embodiments composed of one or more of steps S4201 to S4203 are not limited thereto.

[0277] In some embodiments, steps S4201 and S4203 are optional, and in different embodiments, one or more of these steps may be omitted or replaced.

[0278] Figure 5 is an interaction schematic diagram of the communication method provided according to the embodiments of the present disclosure. As Figure 5 shown, the embodiments of the present disclosure relate to a communication method. The above communication method includes step S501.

[0279] In step S501, the first network element 101 sends the first information to the second network element 102.

[0280] For the optional implementation manners of step S501, reference can be made to Figure 2A step S2102 in Figure 2B the optional implementation manners of step S2202 in Figure 2A , Figure 2B and other related parts in the embodiments involved, which will not be elaborated here.

[0281] In the following, embodiments of the present disclosure are exemplarily described by specific embodiments.

[0282] In some embodiments, the packet filtering set may be an enhanced packet filtering set.

[0283] In some embodiments, for an IP PDU session, the support of the packet filtering set for packet filters may be based on at least one of the following: source / destination IP address or IPv6 prefix; source / destination port number; protocol identifier of the protocol on the IP / next-generation packet header type; type of service (TOS) (IPv4) / traffic class (IPv6) and mask; flow label (IPv6); security parameter index; packet filtering direction; connection ID; stream ID (the stream ID may be specified as a stream range); frame type.

[0284] In some embodiments, the enhanced packet filtering set may be specifically set for multiplexed data streams. In this case, the packet filtering set specifically set for multiplexed data streams may also be referred to as a multiplexed packet filtering set. Of course, the embodiments of the present disclosure do not make specific limitations on its name.

[0285] In some embodiments, the packet filtering set may be included in the packet detection rule and transmitted by the SMF (i.e., the first network element) to the UPF (i.e., the second network element) for execution on the N4 interface, so it is also part of the N4 rule. In addition to being carried in the packet filtering set, it may also be carried to the UPF in other monitoring information of the packet detection rule.

[0286] In some embodiments, the SMF is responsible for instructing the UPF on how to detect the user data traffic belonging to the packet detection rule. Other parameters in the packet detection rule describe how the UPF processes the data packets matching the detection information.

[0287] In some embodiments, the key information of the multiplexed data stream mapping may be carried by the packet filtering set or sent to the UPF in the detection information outside the packet filtering set. In one example, the connection ID, stream ID, and frame type may be enhanced within the packet filtering set. In one example, the connection ID, stream ID, and frame type may be enhanced outside the packet filtering set. For example, they may be sent to the UPF in the detection information to perform traffic mapping.

[0288] In some embodiments, the SMF controls traffic detection on the UPF by providing detection information (i.e., traffic detection information) for each packet detection rule. For IPv4 and / or IPv6 PDU session types, the detection information may include at least one of the following: CN channel information; network instance; QFI; IP packet filtering set; application identifier (the application identifier may be an index of a series of application detection rules configured in the UPF); fully qualified domain name (FQDN) filter for domain name system (DNS) query messages; connection identifier; flow identifier (the flow identifier may be specified as a flow range); frame type.

[0289] In some embodiments, the traffic detection information for a PDU session sent by the SMF to the UPF may be associated with a connection identifier and / or a flow identifier and / or a frame type for the detection and routing of traffic on N6.

[0290] In some embodiments, in the case of an IP PDU session type, the connection identifier and / or the flow identifier and / or the frame type may be used by the UPF for traffic detection and routing, for example.

[0291] In some embodiments, based on an SMF instruction, the UPF may identify and route traffic / packets related to a connection identifier and / or a flow identifier and / or a frame type according to the protocol description in the packet detection rule (e.g., QUIC protocol characteristics), so as to obtain the mapped traffic pointed to by the connection identifier and / or the flow identifier and / or the frame type, and for downlink traffic, it may be sent to the RAN (e.g., via the DL GTP-U header).

[0292] In some embodiments, there may be a UPF local execution scenario, that is, a situation without flow detection indication information from the SMF.

[0293] In some embodiments, the identification of traffic / packets related to a connection identifier and / or a flow identifier and / or a frame type can be implemented by the UPF or by means of detection header extension and / or header and / or payload.

[0294] In some embodiments, the connection identifier and / or the flow identifier and / or the frame type may be provided to the UPF in the packet detection rule.

[0295] In some embodiments, the connection identifier and / or the flow identifier and / or the frame type may be provided to the UPF during the N4 session establishment process or the N4 session modification process.

[0296] In some embodiments, the connection identifier and / or the flow identifier and / or the frame type may be provided to the UPF through the N4 reference point, and at the same time, the N4 session identifier, rule identifier, and QoS flow identifier are also provided.

[0297] In some embodiments, the position of the enhanced packet filtering set in the packet detection rules can be shown in Table 1 below.

[0298]

[0299]

[0300] Table 1: Example of partial attributes of packet detection rules

[0301] In some embodiments, when the 5GC determines to support a specific mapping for multiplexing SDF (detection based on connection identifier and / or flow identifier and / or frame type for different QoS requirements or routing requirements or DSCP mapping requirements), the SMF sends the connection identifier and / or flow identifier and / or frame type to the UPF in the PDR (for example, provided in the packet filtering set or in other parameters within the PDR used to describe how the UPF processes data packets matching the detection information).

[0302] In some embodiments, the UPF may receive the PDR sent by the SMF, which contains the connection identifier and / or flow identifier and / or frame type. The UPF may perform detection and mapping on the data stream received on the N6 interface and may perform corresponding granularity detection and mapping based on the connection identifier and / or flow identifier and / or frame type.

[0303] In some embodiments, when the SMF instructs the UPF to apply multiplexed data stream mapping, the UPF may identify relevant traffic / data packets based on the connection identifier and / or flow identifier and / or frame type in the PDR.

[0304] In some embodiments, in the case where the SMF provides traffic detection information to the UPF, the UPF may use the connection identifier and / or flow identifier and / or frame type for traffic detection and routing.

[0305] In some embodiments, the N4 association establishment process is used to establish an N4 association between the SMF and the UPF so that the SMF can use the resources of the UPF. During this process, the supported functions may be exchanged between the SMF and the UPF.

[0306] Figure 6A is an interaction schematic diagram of an exemplary embodiment of the communication method provided according to the embodiments of the present disclosure. As Figure 6A shown, the establishment of the N4 association may be initiated by the SMF. In some embodiments, the SMF initiates the N4 association establishment process to request the establishment of an N4 association with the UPF. In some embodiments, after receiving the N4 association establishment request, the UPF may send an N4 association establishment response.

[0307] Figure 6BIt is an interaction schematic diagram of an exemplary implementation manner of the communication method provided according to an embodiment of the present disclosure. As Figure 6B shown, the establishment of the N4 association can be initiated by the UPF. In some embodiments, the UPF can initiate the N4 association establishment process to request the establishment of an N4 association with the SMF. In some embodiments, after receiving the N4 association establishment request, the SMF can send an N4 association establishment response.

[0308] In some embodiments, the N4 session establishment process can be used to create an initial N4 session context for the PDU session outgoing from the UPF. The SMF allocates a new N4 session context and provides it to the UPF. The N4 session identifier is stored on the SMF and the UPF and is used to identify the N4 session context during the interaction between the SMF and the UPF. The SMF also stores the association between the N4 session identifier and the PDU session for the UE.

[0309] Figure 6C It is an interaction schematic diagram of an exemplary implementation manner of the communication method provided according to an embodiment of the present disclosure. As Figure 6C shown, the N4 session establishment process can include step S601 to step S604.

[0310] In step S601, the SMF receives a trigger to establish a new PDU session or change the UPF for an already established PDU session.

[0311] In step S602, the SMF sends an N4 session establishment request message to the UPF. This message contains structured control information. This control information defines the behavior of the UPF.

[0312] In step S603, the UPF sends an N4 session establishment response message as a response. This message contains any information that the UPF needs to provide to the SMF as a response to the received control information.

[0313] In step S604, the SMF interacts with the network element (e.g., the AMF or the PCF) that triggers the N4 session establishment process.

[0314] In the embodiments of the present disclosure, some or all of the steps, their optional implementation manners can be arbitrarily combined with some or all of the steps in other embodiments, and can also be arbitrarily combined with the optional implementation manners in other embodiments.

[0315] The embodiments of the present disclosure also provide a communication device for implementing any of the above methods. For example, the embodiments of the present disclosure also provide another communication device, including units or modules for implementing each step performed by the network device in any of the above methods.

[0316] It should be understood that the division of each unit or module in the above device is only a division of logical functions. In actual implementation, it can be fully or partially integrated into a physical entity, or physically separated. In addition, the units or modules in the device can be implemented in the form of a processor invoking software. For example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory. The processor invokes the instructions stored in the memory to implement any of the above methods or the functions of each unit or module of the above device. 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 inside 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 implemented through the design of the hardware circuits. The above hardware circuits can be understood as one or more processors. For example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are implemented through the design of the logical relationships of the components in the circuit. Again, for example, in another implementation, the above hardware circuit can be implemented 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 relationships between the logic gate circuits are configured through a configuration file, so as to implement the functions of some or all of the above units or modules. All units or modules of the above device can be fully implemented in the form of a processor invoking software, or fully implemented in the form of hardware circuits, or partially implemented in the form of a processor invoking software, and the remaining part is implemented in the form of hardware circuits.

[0317] In the embodiments of the present disclosure, a processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with the ability to read and execute instructions, such as a central processing unit, a microprocessor, a graphics processing unit (GPU) (which can be understood as a type of microprocessor), or a digital signal processor (DSP), etc.; in another implementation, the processor can achieve certain functions through the logical relationship of hardware circuits, and the logical relationship of the above hardware circuits is fixed or can be reconfigured. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit or a programmable logic device, such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the configuration of the hardware circuit 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 a type of ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0318] Figure 7A is a schematic structural diagram of a first network element provided according to an embodiment of the present disclosure. As Figure 7A shown, the first network element 101 may include a transceiver module 7101. In some embodiments, the transceiver module 7101 may be configured to: send a first piece of information, where the first piece of information is used to indicate a first data stream in the multiplexed data stream, and the first data stream corresponds to a first QoS flow. Optionally, the transceiver module 7101 may be configured to perform at least one of the sending and / or receiving and other communication steps (such as steps S2101, S2102, S2104, S2105, S2201, S2202) performed by the first network element 101 in any of the above methods, which will not be elaborated here.

[0319] Figure 7B is a schematic structural diagram of a second network element provided according to an embodiment of the present disclosure. As Figure 7BAs shown in the figure, the second network element 102 may include at least one of the following: a transceiver module 7201 and a processing module 7202. In some embodiments, the transceiver module 7201 may be configured to: receive first information, where the first information is used to indicate a first data stream in a multiplexed data stream, and the first data stream corresponds to a first QoS flow. Optionally, the transceiver module 7201 may be configured to perform at least one of the sending and / or receiving and other communication steps (such as steps S2102, S2104, S2201, S2202) performed by the second network element 102 in any of the above methods, which will not be elaborated here. Optionally, the processing module 7202 may be configured to perform at least one of the other steps (such as steps S2103, S2203) other than the sending and / or receiving and other communication steps performed by the second network element 102 in any of the above methods, which will not be elaborated here.

[0320] In some embodiments, the transceiver module may include a sending module and / or a receiving module. The sending module and the receiving module may be separate or integrated together. Optionally, the transceiver module may be interchangeable with a transceiver.

[0321] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the above-mentioned multiple sub-modules respectively perform all or part of the steps required to be performed by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0322] Figure 8A is a schematic structural diagram of a communication device provided according to an embodiment of the present disclosure. The communication device 8100 may be a network device (such as an access network device, a core network device, etc.), or may be a chip, a chip system, or a processor, etc. that supports a network device to implement any of the above methods. The communication device 8100 can be used to implement the methods described in the above method embodiments, and specific reference can be made to the descriptions in the above method embodiments.

[0323] As Figure 8A shown, the communication device 8100 includes one or more processors 8101. The processor 8101 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control a communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to execute any of the above methods. Optionally, one or more processors 8101 are used to call instructions to cause the communication device 8100 to execute any of the above methods.

[0324] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceivers 8102 perform at least one of the communication steps such as sending and / or receiving in the above method (for example, steps S2101, S2102, S2104, S2105, S2201, S2202, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, steps S2103, S2203, but not limited thereto). In an alternative embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and the transmitter may be separate or integrated together. Optionally, terms such as transceiver, transceiver unit, transceiver machine, transceiver circuit, interface circuit, interface, etc. may be used interchangeably, terms such as transmitter, transmitter unit, transmitter machine, transmitter circuit, etc. may be used interchangeably, and terms such as receiver, receiver unit, receiver machine, receiver circuit, etc. may be used interchangeably.

[0325] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Optionally, all or part of the memories 8103 may also be outside the communication device 8100. In an alternative embodiment, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8103, and the interface circuit 8104 can be used to receive data from the memory 8103 or other devices and can be used to send data to the memory 8103 or other devices. For example, the interface circuit 8104 can read the data stored in the memory 8103 and send the data to the processor 8101.

[0326] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be subject to Figure 8A restrictions. 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 chip, or chip system or subsystem; (2) a collection of one or more ICs, and optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0327] Figure 8B is a schematic structural diagram of a chip provided according to an embodiment of the present disclosure. For the case where the communication device 8100 may be a chip or a chip system, reference may be made toFigure 8B Schematic structural diagram of the chip 8200 shown, but not limited thereto.

[0328] The chip 8200 includes one or more processors 8201. The chip 8200 is used to execute any of the above methods.

[0329] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, terms such as interface circuit, interface, transceiver pin, etc. can be replaced with each other. In some embodiments, the chip 8200 further includes one or more memories 8203 for storing data. Optionally, all or part of the memory 8203 can be outside the chip 8200. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive data from the memory 8203 or other devices, and the interface circuit 8202 can be used to send data to the memory 8203 or other devices. For example, the interface circuit 8202 can read the data stored in the memory 8203 and send the data to the processor 8201.

[0330] In some embodiments, the interface circuit 8202 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, steps S2101, S2102, S2104, S2105, S2201, S2202, but not limited thereto). The interface circuit 8202 executing the communication steps such as sending and / or receiving in the above method means, for example, that the interface circuit 8202 executes data interaction between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, the processor 8201 executes at least one of the other steps (for example, steps S2103, S2203, but not limited thereto).

[0331] The various modules and / or devices described in the embodiments of the virtual device, physical device, chip, etc. can be arbitrarily combined or separated according to the situation. Optionally, some or all of the steps can also be executed by multiple modules and / or devices in cooperation, which is not limited herein.

[0332] The embodiments of the present disclosure also propose a storage medium. Instructions are stored on the above storage medium. When the above instructions run on the communication device 8100, the communication device 8100 is made to execute any of the above methods. Optionally, the above storage medium is an electronic storage medium. Optionally, the above storage medium is a computer-readable storage medium, but not limited thereto, and it can also be a storage medium readable by other devices. Optionally, the above storage medium can be a non-transitory storage medium, but not limited thereto, and it can also be a transitory storage medium.

[0333] Embodiments of the present disclosure also provide a program product. When the program product is executed by a communication device 8100, the communication device 8100 is caused to execute any of the above methods. Optionally, the program product is a computer program product.

[0334] Embodiments of the present disclosure also provide a computer program. When the computer program runs on a computer, the computer is caused to execute any of the above methods.

[0335] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include common general knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and embodiments are only to be considered as exemplary, and the true scope and spirit of the present invention are pointed out by the following claims.

[0336] It should be understood that the present invention is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A communication method, performed by a first network element, wherein, The method includes: Sending a first piece of information, where the first piece of information is used to indicate a first data stream in a multiplexed data stream, and the first data stream corresponds to a first Quality of Service (QoS) flow.

2. The method according to claim 1, wherein The first piece of information includes at least one of the following: A first indication message, which is used to indicate an Internet Protocol (IP) connection carrying the first data stream; A second indication message, which is used to indicate an IP flow carrying the first data stream; A third indication message, which is used to indicate an IP frame carrying the first data stream.

3. The method according to claim 2, wherein, The first indication message includes a connection identifier of the IP connection, the second indication message includes a flow identifier of the IP flow, and the third indication message includes a frame type of the IP frame.

4. The method according to claim 2 or 3, wherein The first piece of information further includes indication information of the first QoS flow.

5. The method according to any one of claims 1 to 4, wherein, The first piece of information is included in at least one of the following: Packet detection rules; Traffic detection information.

6. The method according to claim 5, wherein The first piece of information is included in a packet filtering set of the packet detection rules.

7. The method according to any one of claims 1 to 6, wherein, The first piece of information is sent to a second network element through an N4 interface; wherein, the first network element is used to implement packet data unit (PDU) session management, and the second network element is used to implement QoS processing.

8. The method according to claim 7, wherein The sending of the first piece of information is implemented by one of the following methods: N4 association establishment process; N4 session establishment process; N4 session modification process.

9. The method according to any one of claims 1 to 8, wherein, The method further includes: Receiving a second piece of information, where the second piece of information is used to indicate QoS information.

10. The method according to claim 9, wherein, The second piece of information includes at least one of the following: QoS requirements, which are used to indicate mapping requirements of the multiplexed data stream; QoS rules, which are used to indicate mapping policies of the multiplexed data stream.

11. A communication method, performed by a second network element, wherein, The method includes: Receiving a first piece of information, where the first piece of information is used to indicate a first data stream in a multiplexed data stream, and the first data stream corresponds to a first Quality of Service (QoS) flow.

12. The method according to claim 11, wherein, The first piece of information includes at least one of the following: A first indication message, which is used to indicate an Internet Protocol (IP) connection carrying the first data stream; A second indication message, which is used to indicate an IP flow carrying the first data stream; A third indication message, which is used to indicate an IP frame carrying the first data stream.

13. The method according to claim 12, wherein, The first indication message includes a connection identifier of the IP connection, the second indication message includes a flow identifier of the IP flow, and the third indication message includes a frame type of the IP frame.

14. The method according to claim 12 or 13, wherein The first piece of information further includes indication information of the first QoS flow.

15. The method according to any one of claims 11 to 14, wherein The first piece of information is included in at least one of the following: Packet detection rules; Traffic detection information.

16. The method according to claim 15, wherein, The first piece of information is included in a packet filtering set of the packet detection rules.

17. The method according to any one of claims 11 to 16, wherein The first piece of information is received from a first network element through an N4 interface; wherein, the first network element is used to implement packet data unit (PDU) session management, and the second network element is used to implement QoS processing.

18. The method according to claim 17, wherein The receiving of the first piece of information is implemented by one of the following methods: N4 association establishment process; N4 session establishment process; N4 session modification process.

19. The method according to any one of claims 11 to 18, wherein, The method further includes: Determining the first data stream from the multiplexed data stream according to the first piece of information; Determining that the first data stream is mapped to the first QoS flow.

20. The method according to claim 19, wherein, The first data stream includes at least one of the following: IP connection, IP flow, IP frame.

21. A communication method, which is executed by a core network, wherein, The core network includes a first network element and a second network element; Wherein, the method includes: The first network element sends first information to the second network element, where the first information is used to indicate a first data stream in the multiplexed data stream, and the first data stream corresponds to a first Quality of Service (QoS) flow.

22. A first network element, comprising: A transceiver module configured to send first information, where the first information is used to indicate a first data stream in the multiplexed data stream, and the first data stream corresponds to a first Quality of Service (QoS) flow.

23. A second network element, comprising: A transceiver module configured to receive first information, where the first information is used to indicate a first data stream in the multiplexed data stream, and the first data stream corresponds to a first Quality of Service (QoS) flow.

24. A first network element, comprising: One or more processors; A memory storing instructions; Wherein, when the instructions are executed by the first network element, the first network element implements the communication method according to any one of claims 1 to 10.

25. A second network element, comprising: One or more processors; A memory storing instructions; Wherein, when the instructions are executed by the second network element, the second network element implements the communication method according to any one of claims 11 to 20.

26. A communication system, comprising a first network element and a second network element; Among them, The first network element is used to implement the communication method according to any one of claims 1 to 10, and the second network element is used to implement the communication method according to any one of claims 11 to 20.

27. A storage medium storing instructions, wherein, When the instructions run on the communication device, the communication device implements the communication method according to any one of claims 1 to 21.

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