Information transmission method and apparatus, and communication device, communication system and storage medium

Abstract

Provided in the embodiments of the present disclosure are an information transmission method and apparatus, and a communication device, a communication system and a storage medium. The method comprises: a core network function node acquiring first information, wherein the first information is used for determining a quality of service (QoS) characteristic parameter associated with a protocol data unit (PDU) set in a data stream.

Description

Information transmission method and device, communication equipment, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to information transmission methods and devices, communication equipment, communication systems, and storage media. Background Art

[0002] Mobile media services, cloud-based extended reality (eXtended Reality) services such as augmented reality (AR) and virtual reality (VR), cloud gaming, and video-based remote control of machines or drones are expected to contribute increasingly high traffic to 5G networks. In addition to audio and video streams, XR services also involve multimodal data streams, such as those for biotactile perception. This multimodal data describes the same service or application, input from the same or different devices (including sensors), and may be output to one or more destination devices. The data streams within multimodal data often have some, or even strong, correlation, such as synchronization between audio and video streams, or tactile and visual synchronization. These media services share common characteristics within their data streams, between the data streams themselves, and in terms of the network transmission requirements. Effectively identifying and leveraging these characteristics will facilitate network and service transmission and control, as well as enhance service assurance and user experience.

[0003] Summary of the Invention

[0004] Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, an information transmission method is proposed, which is performed by a core network function node, wherein the method includes:

[0006] First information is obtained, wherein the first information is used to determine a quality of service (QoS) characteristic parameter associated with a set of protocol data units (PDUs) in a data stream.

[0007] According to a second aspect of an embodiment of the present disclosure, an information transmission method is provided, which is performed by an application device, wherein the method includes:

[0008] First forward error correction information is sent to a core network function node, wherein the first information is used to determine a quality of service (QoS) characteristic parameter associated with a protocol data unit (PDU) set in a data stream.

[0009] According to a third aspect of an embodiment of the present disclosure, an information transmission method is provided, which is performed by an access network device. The method includes:

[0010] Receive first information of an application device sent by a core network function node, wherein the first information is used to determine a quality of service (QoS) characteristic parameter associated with a protocol data unit (PDU) set in a data stream.

[0011] According to a fourth aspect of an embodiment of the present disclosure, an information transmission method is provided, which is performed by a communication system. The method includes:

[0012] The core network function node obtains first information of the application device sent by the application device, wherein the first information is used to determine a quality of service (QoS) characteristic parameter associated with a protocol data unit (PDU) set in the data flow;

[0013] The access network device receives the first information of the application device sent by the core network function node.

[0014] According to the fifth aspect of the embodiment of the present disclosure, the embodiment of the present disclosure proposes a core network function node, which includes at least one of a transceiver module and a processing module; wherein the above-mentioned core network function node is used to execute the first aspect and the optional implementation method of the first aspect.

[0015] According to the sixth aspect of the embodiment of the present disclosure, the embodiment of the present disclosure proposes an application device, which includes at least one of a transceiver module and a processing module; wherein the above-mentioned application device is used to execute the second aspect and the optional implementation method of the second aspect.

[0016] According to the seventh aspect of the embodiment of the present disclosure, the embodiment of the present disclosure proposes an access network device, which includes at least one of a transceiver module and a processing module; wherein the above-mentioned access network device is used to execute the third aspect and the optional implementation method of the third aspect.

[0017] According to an eighth aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a communication system, wherein the communication system includes: a core network function node, an application device, and an access network device; wherein,

[0018] The core network function node is used to execute the first aspect and the optional implementation of the first aspect;

[0019] The application device is used to perform the second aspect and the optional implementation of the second aspect;

[0020] The access network device is used to execute the third aspect and the optional implementation of the third aspect.

[0021] According to a ninth aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a communication device, wherein the communication device includes:

[0022] one or more processors;

[0023] The processor is used to call instructions to enable the communication device to execute the information transmission method described in the first aspect, the second aspect, or the third aspect.

[0024] According to the tenth aspect of the embodiment of the present disclosure, the embodiment of the present disclosure proposes a storage medium, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the information transmission method described in the first aspect, the second aspect, or the third aspect.

[0025] By determining the QoS characteristic parameters through the first information, the conflict between FEC and QoS characteristic parameters is reduced, and the reliability of data stream transmission is improved. It should be understood that the above general description and the following detailed description are only exemplary and explanatory and do not limit the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0027] FIG1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0028] FIG2a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0029] FIG2 b is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0030] FIG3a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0031] FIG3 b is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0032] FIG3c is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0033] FIG4a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0034] FIG4 b is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0035] FIG4c is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0036] FIG4 d is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0037] FIG4e is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0038] FIG5 is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0039] FIG6 a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0040] FIG6 b is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0041] FIG7a is a schematic structural diagram of a core network function node according to an exemplary embodiment;

[0042] FIG7b is a schematic diagram showing the structure of an access network device according to an exemplary embodiment;

[0043] FIG7c is a schematic diagram showing the structure of an access network device according to an exemplary embodiment;

[0044] FIG8a is a schematic structural diagram of an application device according to an exemplary embodiment;

[0045] Fig. 8b is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0046] Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, a communication system, and a storage medium.

[0047] In a first aspect, an embodiment of the present disclosure provides an information transmission method, which is performed by a core network function node, wherein the method includes:

[0048] First information of an application device is obtained, wherein the first information is used to determine a quality of service (QoS) characteristic parameter associated with a protocol data unit (PDU) set in a data stream.

[0049] In the above embodiment, the QoS characteristic parameters are determined by the first information, thereby reducing conflicts between the QoS characteristic parameters of the PDU sets corresponding to different first information and improving the reliability of data stream transmission.

[0050] In combination with some embodiments of the first aspect, in some embodiments, the QoS characteristic parameters corresponding to the PDU set associated with the first information are different from the QoS characteristic parameters corresponding to the PDU set not associated with the first information.

[0051] In the above embodiment, different QoS characteristic parameters are configured for association or non-association with the first information, so as to meet the transmission requirements of different demand PDU sets.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the first information is used to correct errors in the transmitted PDU set.

[0053] In the above embodiment, on the one hand, the first information is used to correct PDU errors, thereby improving the reliability of PDU transmission. On the other hand, the first information is used to determine QoS characteristic parameters, thereby reducing the conflict between error correction capability and QoS characteristic parameters, thereby improving data stream transmission reliability.

[0054] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes at least one of the following:

[0055] Forward Error Correction (FEC) application indication; FEC protocol description information; FEC error correction rate information; FEC data packet location information; FEC data packet importance information; indication information of the correspondence between the first information and the data stream.

[0056] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0057] The QoS characteristic parameters of a first PDU set are modified based on the first information, where the first PDU set is a PDU set associated with the first information.

[0058] In the above embodiment, on the other hand, the QoS characteristic parameters are determined by the first information, thereby reducing the conflict between the error correction capability and the QoS characteristic parameters and improving the reliability of data stream transmission.

[0059] In conjunction with some embodiments of the first aspect, in some embodiments, obtaining the first information includes at least one of the following:

[0060] receiving the first information sent by the application device;

[0061] The first information is determined according to at least one of an Operation Administration and Maintenance (OAM) configuration and a predetermined operation policy.

[0062] In the above embodiment, the core network function node may obtain the first information from the AF, or the core network function node may determine the first information, thereby improving the flexibility of obtaining the first information.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, receiving the first information sent by the application device includes at least one of the following:

[0064] A policy control function (PCF) in the core network function node receives the first information sent by an application function (AF);

[0065] A user plane function (UPF) in the core network function node receives the first information sent by an application server (AS).

[0066] In the above embodiment, the first information is obtained from the control plane or the user plane, which improves the flexibility of obtaining the first information.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0068] The UPF in the core network function node receives the forward error correction (FEC) information user plane parameters sent by the AS.

[0069] In the above embodiment, control plane parameters such as FEC-related QoS requirements and protocol descriptions are obtained from the control plane to improve the FEC success rate of the PDU.

[0070] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0071] The UPF sends the FEC user plane parameters to the access network device.

[0072] In the above embodiment, control plane parameters such as QoS requirements and protocol description related to the FEC user plane are obtained from the control plane to improve the FEC success rate of the PDU.

[0073] In combination with some embodiments of the first aspect, in some embodiments, the UPF sending the FEC user plane parameters to the access network device includes:

[0074] The UPF determines the FEC user plane parameters associated with the PDU, and marks the FEC user plane parameters in a PDU extension header of the PDU;

[0075] Send the PDU extension header to the access network device.

[0076] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first information according to at least one of an OAM configuration and a predetermined operation policy includes:

[0077] The UPF in the core network function node determines the first information based on at least one of the OAM configuration and the predetermined operation policy.

[0078] In the above embodiment, control plane parameters such as QoS requirements and protocol description related to the FEC user plane are obtained from the control plane to improve the FEC success rate of the PDU.

[0079] In combination with some embodiments of the first aspect, in some embodiments, the UPF in the core network function node determines the first information according to at least one of the OAM configuration and the predetermined operation policy, including:

[0080] The UPF determines the first information based on the authorization or instruction of the session management function SMF in the core network function node and according to at least one of the OAM configuration and the predetermined operation policy.

[0081] In the above embodiment, the UPF determines the first information based on the authorization or instruction of the SMF, thereby improving the security of determining the first information.

[0082] In conjunction with some embodiments of the first aspect, in some embodiments, obtaining the first information includes at least one of the following:

[0083] The SMF in the core network function node receives the first information sent by the PCF in the core network function node;

[0084] The access and mobility management function AMF in the core network function node receives the first information sent by the SMF;

[0085] The UPF in the core network function node receives the first information sent by the SMF.

[0086] In the above embodiment, by transmitting the first information in each core network function node, each core network function node can determine the QoS characteristic parameter.

[0087] In combination with some embodiments of the first aspect, in some embodiments, the SMF in the core network function node receives the first information sent by the PCF, including:

[0088] The SMF receives the policy control and charging PCC rules carrying the first information sent by the PCF.

[0089] In the above embodiment, the first information is sent to the SMF through the PCC rule, thereby improving the information transmission efficiency of the PCC rule.

[0090] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0091] Send the first information to the access network device.

[0092] In the above embodiment, the first information is sent to the access network device, and the access network device can perform FEC of the PDU based on the first information to improve the transmission reliability of the PDU.

[0093] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the access network device includes at least one of the following:

[0094] The UPF in the core network function node sends the first information to the access network device;

[0095] The SMF in the core network function node sends the first information to the access network device through the AMF.

[0096] In the above embodiment, the first information is transmitted through UPF and AMF, which improves the flexibility of first information transmission.

[0097] In combination with some embodiments of the first aspect, in some embodiments, the first information is carried in a PDU extension header associated with the PDU set.

[0098] In conjunction with some embodiments of the first aspect, in some embodiments, the QoS characteristic parameter includes at least one of the following:

[0099] PDU Set Delay Budget (PSDB); PDU Set Error Rate (PSER); PDU Set Integrated Handling Indication (PSIHI).

[0100] In combination with some embodiments of the first aspect, in some embodiments, the first information is used for determining the QoS characteristic parameters for at least one of the following: PCF in the core network function node; SMF in the core network function node.

[0101] In a second aspect, an embodiment of the present disclosure provides an information transmission method, which is performed by an application device, wherein the method includes:

[0102] Sending first information of an application device to a core network function node, wherein the first information is used to determine a quality of service (QoS) characteristic parameter associated with a protocol data unit (PDU) set in a data stream.

[0103] In the above embodiment, the QoS characteristic parameters are determined by the first information, thereby reducing the conflict between FEC and QoS characteristic parameters and improving the reliability of data stream transmission.

[0104] In combination with some embodiments of the second aspect, in some embodiments, the QoS characteristic parameters corresponding to the PDU set associated with the first information are different from the QoS characteristic parameters corresponding to the PDU set not associated with the first information.

[0105] In combination with some embodiments of the second aspect, in some embodiments, the first information is used to correct errors in the transmitted PDU set.

[0106] In combination with some embodiments of the second aspect, in some embodiments, the first information is used by the core network function node to modify the QoS characteristic parameters of the first PDU set, and the first PDU set is a PDU set associated with the first information.

[0107] In the above embodiment, on the other hand, the QoS characteristic parameters are determined by the first information, thereby reducing the conflict between the error correction capability and the QoS characteristic parameters and improving the reliability of data stream transmission.

[0108] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes at least one of the following:

[0109] FEC application indication; FEC protocol description information; FEC error correction rate information; FEC data packet location information; FEC data packet importance information; indication information of the correspondence between the first information and the data stream.

[0110] In combination with some embodiments of the second aspect, in some embodiments, the application device includes one of the following: an application function AF; an application server AS.

[0111] In conjunction with some embodiments of the second aspect, in some embodiments, sending the first information to the core network function node includes at least one of the following:

[0112] The AF sends the first information to the policy control function PCF in the core network function node;

[0113] The AS sends the first information to the user plane function UPF in the core network function node.

[0114] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0115] The AS sends FEC user plane parameters to the UPF in the core network function node.

[0116] In combination with some embodiments of the second aspect, in some embodiments, the first information is sent by the UPF in the core network function node to the access network device; and / or

[0117] The first information is sent by the AMF in the core network function node to the access network device.

[0118] In combination with some embodiments of the second aspect, in some embodiments, the first information is carried in a PDU extension header associated with the PDU set.

[0119] In conjunction with some embodiments of the second aspect, in some embodiments, the QoS characteristic parameter includes at least one of the following:

[0120] PDU set delay budget PSDB; PDU set error rate PSER; PDU set integrated processing indicator PSIHI.

[0121] In combination with some embodiments of the second aspect, in some embodiments, the first information is used for determining the QoS characteristic parameters for at least one of the following: PCF in the core network function node; SMF in the core network function node.

[0122] In a third aspect, an embodiment of the present disclosure provides an information transmission method, which is performed by an access network device, wherein the method includes:

[0123] Receive first information of an application device sent by a core network function node, wherein the first information is used to determine a quality of service (QoS) characteristic parameter associated with a protocol data unit (PDU) set in a data stream.

[0124] In the above embodiment, the QoS characteristic parameters are determined by the first information, thereby reducing the conflict between FEC and QoS characteristic parameters and improving the reliability of data stream transmission.

[0125] In combination with some embodiments of the third aspect, in some embodiments, the QoS characteristic parameters corresponding to the PDU set associated with the first information are different from the QoS characteristic parameters corresponding to the PDU set not associated with the first information.

[0126] In combination with some embodiments of the third aspect, in some embodiments, the first information is used to correct errors in the transmitted PDU set.

[0127] In combination with some embodiments of the third aspect, in some embodiments, the first information is used by the core network function node to modify the QoS characteristic parameters of the first PDU set, and the first PDU set is a PDU set associated with the first information.

[0128] In the above embodiment, on the other hand, the QoS characteristic parameters are determined by the first information, thereby reducing the conflict between the error correction capability and the QoS characteristic parameters and improving the reliability of data stream transmission.

[0129] In conjunction with some embodiments of the third aspect, in some embodiments, the first information includes at least one of the following:

[0130] FEC application indication; FEC protocol description information; FEC error correction rate information; FEC data packet location information; FEC data packet importance information; indication information of the correspondence between the first information and the data stream.

[0131] In combination with some embodiments of the third aspect, in some embodiments, the first information is received by the core network function node from the application device; and / or

[0132] The first information is determined by the core network function node according to at least one of an operation, maintenance and management (OAM) configuration and a predetermined operation policy.

[0133] In combination with some embodiments of the third aspect, in some embodiments, the first information is received by the policy control function PCF in the core network function node from the application function AF; and / or

[0134] The first information is received by the user plane function UPF in the core network function node from the application server AS.

[0135] In combination with some embodiments of the third aspect, in some embodiments, the first information is determined by the UPF in the core network function node based on at least one of the OAM configuration and the predetermined operation policy.

[0136] In conjunction with some embodiments of the third aspect, in some embodiments, the receiving the first information sent by the core network function node includes at least one of the following:

[0137] Receiving the first information sent by the UPF in the core network function node;

[0138] Receive the first information sent by SMF in the core network function node through AMF.

[0139] In combination with some embodiments of the third aspect, in some embodiments, the first information is carried in a PDU extension header associated with the PDU set.

[0140] In conjunction with some embodiments of the third aspect, in some embodiments, the QoS characteristic parameter includes at least one of the following:

[0141] PDU set delay budget PSDB; PDU set error rate PSER; PDU set integrated processing indicator PSIHI.

[0142] In conjunction with some embodiments of the third aspect, in some embodiments, the method further includes:

[0143] Receive FEC user plane parameters sent by the UPF in the core network function node.

[0144] In combination with some embodiments of the third aspect, in some embodiments, the UPF sends the FEC user plane parameters to the access network device, including:

[0145] A PDU extension header marked with the FEC user plane parameters is received.

[0146] In combination with some embodiments of the third aspect, in some embodiments, the first information is used for determining the QoS characteristic parameters for at least one of the following: PCF in the core network function node; SMF in the core network function node.

[0147] In a fourth aspect, an embodiment of the present disclosure provides an information transmission method, which is performed by a communication system, and the method includes:

[0148] The core network function node obtains first information of the application device sent by the application device, wherein the first information is used to determine a quality of service (QoS) characteristic parameter associated with a protocol data unit (PDU) set in the data flow;

[0149] The access network device receives the first information of the application device sent by the core network function node.

[0150] In the fifth aspect, an embodiment of the present disclosure proposes a core network function node, which includes at least one of a transceiver module and a processing module; wherein the above-mentioned core network function node is used to execute the first aspect and the optional implementation method of the first aspect.

[0151] In a sixth aspect, an embodiment of the present disclosure proposes an application device, which includes at least one of a transceiver module and a processing module; wherein the above-mentioned application device is used to execute the second aspect and the optional implementation method of the second aspect.

[0152] In the seventh aspect, an embodiment of the present disclosure proposes an access network device, which includes at least one of a transceiver module and a processing module; wherein the above-mentioned access network device is used to execute the third aspect and the optional implementation method of the third aspect.

[0153] In an eighth aspect, an embodiment of the present disclosure provides a communication system, wherein the communication system includes: a core network function node, an application device, and an access network device; wherein,

[0154] The core network function node is used to execute the first aspect and the optional implementation of the first aspect;

[0155] The application device is used to perform the second aspect and the optional implementation of the second aspect;

[0156] The access network device is used to execute the third aspect and the optional implementation of the third aspect.

[0157] In a ninth aspect, an embodiment of the present disclosure provides a communication device, wherein the communication device includes:

[0158] one or more processors;

[0159] The processor is used to call instructions to enable the communication device to execute the information transmission method described in the first aspect, the second aspect, or the third aspect.

[0160] In the tenth aspect, an embodiment of the present disclosure proposes a storage medium, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the information transmission method described in the first aspect, the second aspect, or the third aspect.

[0161] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0162] The present disclosure provides an information transmission method and apparatus, a communication device, a communication system, and a storage medium. In some embodiments, the terms "information transmission method" and "information processing method" are interchangeable; the terms "information transmission apparatus" and "information processing apparatus" are interchangeable; and the terms "communication system" and "information processing system" are interchangeable.

[0163] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0164] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0165] 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.

[0166] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0167] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0168] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0169] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "in one case A, in another case B," or "in one case A, in another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, and C.

[0170] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0171] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0172] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0173] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0174] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0175] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0176] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0177] In some embodiments, "network" can be interpreted as devices included in the network (for example, access network equipment, core network function nodes (core network equipment), etc.).

[0178] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0179] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0180] In some embodiments, an access network device, a core network function node, or a network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between an access network device, a core network function node, or a network device and a terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, an uplink channel, a downlink channel, etc. can be replaced by a side channel, and an uplink, a downlink, etc. can be replaced by a side link.

[0181] In some embodiments, the terminal may be replaced by an access network device, a core network function node, or a network device. In this case, the access network device, the core network function node, or the network device may also be configured to have all or part of the functions of the terminal.

[0182] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0183] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0184] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0185] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0186] As shown in FIG. 1 a , a communication system 100 includes a network device core network function node 101 , an access network device 102 , and an application device 103 .

[0187] In some embodiments, the core network function node 101 may be a device including an access and mobility management function (AMF), a user plane function (UPF), a policy control function (PCF), a session management function (SMF), etc., or may be multiple devices or a group of devices including all or part of the AMF, SMF, UPF, PCF, etc. The network element may be virtual or physical. The core network may include, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0188] In some embodiments, the access network device 102 can be, for example, a node or device that accesses the terminal to the wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0189] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0190] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0191] In some embodiments, the terminal 104 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0192] In some embodiments, the application device 103 may be a device where an external application resides, and may be multiple devices or a device group, etc. It may include: an application function (AF) and an application server (AS).

[0193] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0194] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1a, or a portion thereof, but are not limited thereto. The entities shown in FIG1a are illustrative only. The communication system may include all or a portion of the entities shown in FIG1a, or may include other entities other than those shown in FIG1a. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0195] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0196] Extended Reality Media (XRM) and interactive media services require the 5GS system to comprehensively consider the Quality of Service (QoS) characteristics of the relevant data streams of the services, such as the delay-critical Guaranteed Bit Rate (GBR).

[0197] For data flows, ensure that parameters such as the guaranteed flow bit rate (GFBR), packet delay budget (PDB), and maximum data burst volume (MDBV) are met and coordinated simultaneously. This also involves ensuring the consistency of QoS authorization and execution for multiple XRM data flows within a single UE, and for XRM data flows across multiple UEs.

[0198] Current 5G systems support enhanced AF functionality for processing XRM service data flows based on Protocol Data Unit (PDU) sets. This enhances AF's QoS awareness and assurance of XRM service data flows, as well as user QoE. This includes providing PDU Set-specific QoS characteristics and protocol descriptions.

[0199] PDU set specific QoS includes:

[0200] - PDU Set Delay Budget (PSDB);

[0201] - PDU Set Error Rate (PSER);

[0202] - PDU Set Integrated Handling Indication (PSIHI).

[0203] The SMF and UPF can combine the protocol description and protocol header extension provided by the AF to perform the general packet radio service tunneling protocol-user plane (GTP-U) header extension of the corresponding service data flow (SDF) PDU set, carrying PDU Set Information. The PDU Set information is used by the NG-RAN for PDU Set based QoS handling. The PDU Set Information comprises:

[0204] - PDU Set Sequence Number;

[0205] - Indication of End PDU of the PDU Set;

[0206] - PDU Sequence Number within a PDU Set;

[0207] - PDU byte length (PDU Set Size in bytes);

[0208] - PDU Set Importance, which identifies the relative importance of the PDU Set compared to other PDU Sets within the QoS Flow.

[0209] RAN can perform PDU set based handling according to the PDU Set specific QoS characteristics and Protocol Description provided by 5GC and AF, as well as the enhanced packet header identified and marked by UPF. Currently, 5GS only supports PDU set processing in which all data packets in the PDU set need to be received, otherwise the entire PDU set data packet can be discarded. Different PDU set processing methods can be PSIHI. For example, when PSIHI is the first value, 5GC needs to transmit all PDUs in the PDU set to RAN; when PSIHI is the second value, 5GC cannot and does not need to transmit all PDUs in the PDU set to RAN.

[0210] In actual business applications, redundancy is appropriately added to combat common network packet loss. Redundancy methods include data redundancy, coding redundancy, and other methods. For coding or data transmission protocols that add redundancy to combat packet loss, such as Forward Error Correction (FEC), the current PDU set-based processing mechanism cannot achieve redundancy protection. The introduction of PSIHI, while enhancing the RAN's orderly packet loss capability, also further suppresses the original redundancy protection function. For example, PSIHI instructs the 5GC to transmit all PDUs in the PDU set to the RAN. After adopting FEC, the RAN can restore the complete PDU set even if some PDUs are missing.

[0211] The information transmission method provided by the present disclosure is introduced below using FEC as an example. It is worth noting that the information transmission method provided by the present disclosure can also be used in other scenarios where error correction capabilities are applicable.

[0212] In FEC application scenarios, how to enhance PDU set-based processing and support QoS assurance for FEC-encoded XR service data streams is an urgent problem to be solved.

[0213] FIG2a is an interactive diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG2a, the present disclosure embodiment relates to an information transmission method for a communication system 100, the method comprising:

[0214] Step S2101 : The application device 103 sends first information to the core network function node 101 .

[0215] The core network function node 101 is not limited to obtaining the first information from the application device 103, and may also obtain the first information through other means, which are not limited here. For example, the core network function node 101 obtains the first information from an external device.

[0216] In some embodiments, the application device 103 includes at least one of the following: AF, AS.

[0217] In some embodiments, the core network function node 101 includes at least one of the following: NEF, PCF, SMF, UPF, AMF.

[0218] In some embodiments, the first information is used to determine the FEC used by the data stream corresponding to the first information, or the first information is used to determine the FEC used by the PDU set in the data stream corresponding to the first information. Optionally, the data stream may be an XRM data stream.

[0219] In some embodiments, the first information carries an identifier of a data stream to indicate the corresponding data stream.

[0220] In some embodiments, a data packet header of the data stream may carry an identifier of the first information to indicate the corresponding first information.

[0221] In some embodiments, the first information is used to perform error correction on the transmitted PDU set.

[0222] In some embodiments, the first information includes FEC information.

[0223] Optionally, the FEC information includes FEC-related configuration information, etc., which is used to perform relevant configuration on the FEC of the data stream.

[0224] In some embodiments, FEC can be implemented by configuring redundant data before the data is sent to correct errors in the transmitted data.

[0225] For example, FEC corrects errors by adding redundant codes to the transmitted data stream. At the sending end, the sending device generates redundant codes according to a certain algorithm and inserts them into the data stream to be transmitted. The receiving end decodes the received data stream according to the same algorithm, determines the location of the error code based on the received code stream, and performs error correction.

[0226] In some embodiments, the QoS characteristic parameters corresponding to the PDU sets associated with different first information are different.

[0227] In some embodiments, the QoS characteristic parameters corresponding to the PDU set associated with the first information are different from the QoS characteristic parameters corresponding to the PDU set not associated with the first information.

[0228] Since the PDU set with the first information has redundant data, etc., it is different from the PDU set without the first information in parameters such as data volume and fault tolerance. Therefore, the QoS characteristic parameters of the two may be different.

[0229] For example, for the PDU sets that transmit the same video, PDU set 1 is associated with the first information, that is, PDU set 1 has FEC redundant data packets. Therefore, in addition to the video information PDU1 to PDU100, PDU set 1 also contains PDU101 to PDU150 as redundant data. However, PDU set 1 is not associated with the first information, that is, PDU set 2 does not have FEC redundant data packets, and PDU set 2 only contains the video information PDU1 to PDU100. PDU set 1 and PDU set 2 have different data volumes, and their QoS characteristic parameters can be different. For example, in order to ensure the smoothness of the video, the QoS requirement for the transmission of PDU set 2 is that all PDUs must be successfully transmitted, while since PDU set 1 has error correction capabilities, the QoS requirement for the transmission of PDU set 1 is that 90% of the PDUs must be successfully transmitted. The first information includes at least one of the following:

[0230] FEC application indication; FEC protocol description information; FEC error correction rate information; FEC data packet location information; FEC data packet importance information; indication information of the correspondence between the first information and the data stream.

[0231] In some embodiments, the FEC application indication is used to indicate whether FEC is applied.

[0232] In some embodiments, the FEC protocol description is used to indicate the protocol used for FEC.

[0233] In some embodiments, the FEC error correction rate information is used to indicate the error correction rate that can be achieved by FEC.

[0234] In some embodiments, the FEC data packet location information is used to indicate at least one of the following: whether the FEC data packet is inside or outside the data stream; and whether the data stream is an FEC data packet.

[0235] In some embodiments, the FEC data packet may be a redundant data packet used to recover the PDU during the FEC process.

[0236] For example, when transmitting PDU1 and PDU2, an FEC packet can be set and transmitted, and the FEC packet can be a redundant packet PDU3. For example, PDU3 contains PDU1 and all the contents of PDU1. When an error occurs during the transmission of PDU1 and / or PDU2, PDU3 can be used to restore PDU1 and / or PDU2.

[0237] In some embodiments, the FEC packet importance information is used to indicate at least one of the following: a comparative relationship between the set importance indication PSI of the FEC packet and the PSI of the PDU set associated with the FEC packet; FEC packet importance; FEC packet associated data stream importance; FEC packet importance indication; FEC packet associated data stream importance indication; FEC packet priority; FEC packet associated data stream priority.

[0238] In some embodiments, the FEC packet importance is used to indicate the importance of the FEC packet, for example, the FEC packet importance is 1, 2, 3, etc.

[0239] In some embodiments, the FEC packet importance indicator is used to indicate the relative importance of the FEC packet. For example, the FEC packet importance indicator is used to indicate whether the FEC packet importance is high, low, etc.

[0240] FEC packet-associated data stream, including one of the following: a data stream composed of FEC packets; a data stream containing FEC packets.

[0241] In some embodiments, the importance of the data stream associated with the FEC packet is used to indicate the importance of the data stream associated with the FEC packet. For example, the importance of the data stream associated with the FEC packet is 1, 2, 3, ...

[0242] In some embodiments, the FFEC packet associated data flow importance indicator is used to indicate the relative importance of the FEC packet associated data flow. For example, the FEC packet associated data flow importance indicator is used to indicate whether the FEC packet associated data flow is of high or low importance.

[0243] In some embodiments, the information indicating the correspondence between the first information and the data stream is used to indicate at least one of the following: whether the first information is associated with the data stream; and identification information of the data stream to which the first information is associated. In some embodiments, the first information may be associated with a service data stream, and the first information may be associated with all PDU sets in the service data stream.

[0244] In some embodiments, the first information is used to determine a quality of service (QoS) characteristic parameter associated with a set of protocol data units (PDUs) in the data flow.

[0245] In some embodiments, the first information is used by the core network function node 101 to determine a quality of service (QoS) characteristic parameter associated with a protocol data unit (PDU) set in the data flow.

[0246] In some embodiments, the QoS characteristic parameter includes at least one of the following: a PDU set delay budget PSDB; a PDU set error rate PSER; and a PDU set integrated processing indicator PSIHI.

[0247] In some embodiments, the core network function node 101 may adjust the PSDB based on the first information. For example, if the PDU set has corresponding first information, the core network function node 101 may increase the value of the PSDB.

[0248] Optionally, the PSDB of the PDU set with the first information may be larger than the PSDB of the PDU set without the first information.

[0249] Optionally, the PSDB is positively correlated with the FEC capability determined based on the first information.

[0250] In some embodiments, the core network function node 101 may adjust the PSER based on the first information. For example, if the PDU set has corresponding first information, the core network function node 101 may increase the PSER value.

[0251] Optionally, the PSER of the PDU set with the first information may be greater than the PSER of the PDU set without the first information.

[0252] Optionally, the PSER is positively correlated with the FEC capability determined according to the first information.

[0253] In some embodiments, the core network function node 101 may adjust the PSIHI based on the first information.

[0254] Optionally, the PSIHI corresponding to the PDU set that does not have the first information is a first value; when the PSIHI is the first value, the access network device needs to receive all PDUs in the PDU set.

[0255] Optionally, the PSIHI corresponding to the PDU set containing the first information is a second value. When the PSIHI is the second value, the access network device 102 does not need to receive all PDUs in the PDU set. For example, after the access network device 102 receives some PDUs in the PDU set (e.g., 99% of the PDUs), it can recover the lost PDUs (e.g., the lost 1% of the PDUs) through FEC.

[0256] In some embodiments, the core network function node 101 modifies the QoS characteristic parameters of the first PDU set based on the first information, where the first PDU set is a PDU set associated with the first information.

[0257] The core network function node 101 modifies the QoS characteristic parameters of the first PDU set based on the first information, so that the modified QoS characteristic parameters can meet the requirements of FEC.

[0258] For example, the initial PSIHI of the PDU set is a first value. If the core network function node 101 receives the first information of the PDU set and determines that the PDU set can perform FEC, the PSIHI of the PDU set can be modified to a second value.

[0259] In some embodiments, the core network function node modifies the QoS characteristic parameters of the first PDU set based on the first information, and the core network function node modifies the QoS characteristic parameters after the modification.

[0260] In some embodiments, the modified QoS characteristic parameter is associated with the FEC capability determined based on the first information.

[0261] Optionally, the degree of modification of the QoS characteristic parameters is positively correlated with the FEC capability. For example, the stronger the FEC capability, the greater the difference between the PSDB before and after modification.

[0262] In some embodiments, the PDU set has corresponding first information, and the QoS characteristic parameters of the PDU set are not modified, allowing the core network function node 101 / access network device 102 / core network element to transmit the PDU set not based on the QoS characteristic parameters of the PDU set.

[0263] Optionally, the PDU set has corresponding first information, and the PDU set QoS characteristic parameter PSIHI is not allowed to be modified, then the core network function node 101 / access network device 102 / core network element is allowed to transmit the PDU set not based on the PSIHI of the PDU set.

[0264] For example, if the PSIHI of a PDU set is a first value, the access network device 102 needs to receive all PDUs in the PDU set when performing the PDU set. If not all PDUs are received, the received PDUs are discarded, and the core network function node 101 needs to retransmit the PDU set. When the PDU set has corresponding first information and the PDU set PSIHI does not allow modification, then if the access network device 102 does not receive all PDUs, it may not discard the received PDUs, but may perform FEC on the received PDUs. If the PDU set can be error-corrected, the core network function node 101 may not retransmit the PDU set. In some embodiments, the policy control function PCF in the core network function node 101 receives the first information sent by the application function AF.

[0265] In some embodiments, the first information is used for determining QoS characteristic parameters for at least one of the following: PCF in the core network function node 101; SMF in the core network function node 101.

[0266] In some embodiments, the AF sends the first information to the PCF.

[0267] Optionally, the AF may send the first information directly to the PCF.

[0268] Optionally, the AF may send the first information to the PCF through the NEF.

[0269] Optionally, the AF may send the first information to the PCF during the PDU session establishment process. For example, the AF may carry the first information in the PDU session establishment request.

[0270] Optionally, the AF may send the first information to the PCF in the PDU session modification process.

[0271] In some embodiments, the SMF in the core network function node 101 receives first information sent by the PCF in the core network function node 101 .

[0272] Optionally, the first information may be sent from the AF to the PCF.

[0273] In some embodiments, the SMF receives the policy control and charging PCC rules carrying the first information sent by the PCF.

[0274] In some embodiments, the PCF may determine the PCC rules based at least on the first information sent by the AF.

[0275] Optionally, the PCF may also determine the PCC rules based on the QoS requirements sent by the AF.

[0276] Optionally, the PCF sends the first information to the SMF.

[0277] In some embodiments, the AMF in the core network function node 101 receives the first information sent by the SMF.

[0278] Optionally, in the PDU session establishment process, for the modification requested by the SMF, the SMF calls Namf_Communication_N1N2MessageTransfer (which may include; [N2SM information] (PDU session ID, QFI, QoS profile), N1SM container). The SMF may carry the first information in the Namf_Communication_N1N2MessageTransfer and send it to the AMF.

[0279] In some embodiments, the UPF in the core network function node 101 receives the first information sent by the SMF.

[0280] Optionally, after receiving the PCC rules carrying the first information sent by the PCF, the SMF determines the QoS rules and QoS set parameters based at least on the first information to configure / activate the UPF rules (for example, through the N4 session).

[0281] Optionally, the SMF sends the first information to the UPF through the N4 session.

[0282] In some embodiments, the user plane function UPF in the core network function node 101 receives the first information sent by the application server AS.

[0283] In some embodiments, the AS sends the first information to the PCF.

[0284] Optionally, the AS may directly send the first information to the PCF.

[0285] Optionally, the AS may send the first information to the PCF through the NEF.

[0286] In some embodiments, when the first information is transmitted within the core network, it may only carry the content required by the network element receiving the first information.

[0287] In some embodiments, the core network element that sends the first information may adjust the content of the first information.

[0288] Exemplarily, the first information received by the PCF indicates: an FEC application indication; and FEC protocol description information. When the PCF sends the first information to the SMF, the PCF may delete the FEC application indication in the first information. The SMF applies FEC by default based on the FEC protocol description information.

[0289] Step S2102: The core network function node 101 sends first information to the access network device 102.

[0290] In some embodiments, the core network function node 101 sends the first information to the access network device 102 through a control plane.

[0291] In some embodiments, the UPF in the core network function node 101 sends first information to the access network device 102.

[0292] In some embodiments, the first information sent by the UPF may be sent by the AF to the core network function node 101, or may be sent by the AS to the core network function node 101.

[0293] In some embodiments, the first information is carried in a PDU extension header associated with the PDU set.

[0294] Optionally, the first information is carried in PDU set information (PDU Set Information) in a PDU extension header.

[0295] Optionally, the PDU extended header includes: a general packet radio service tunneling protocol-user plane (GTP-U) extended header.

[0296] In some embodiments, the core network function node 101 sends the first information to the access network device 102 through a control plane.

[0297] In some embodiments, the AMF in the core network function node 101 sends the first information to the access network device 102.

[0298] In some embodiments, the first information sent by the AMF may be sent by the AF to the core network function node 101.

[0299] In some embodiments, the access network device 102 may perform FEC of the PDU based on the first information.

[0300] In some embodiments, when the core network function node 101 sends the first information to the access network device 102 , it may only carry the content required by the access network device 102 .

[0301] In some embodiments, the core network function node 101 may adjust the content of the first information.

[0302] Exemplarily, the first information received by the core network function node 101 indicates: an FEC application indication; and FEC protocol description information. When the core network function node 101 sends the first information to the access network device 102, the core network function node 101 may delete the FEC application indication from the first information. The access network device 102 applies FEC by default based on the FEC protocol description information.

[0303] Step S2103: The core network function node 101 receives FEC user plane parameters.

[0304] In some embodiments, the UPF in the core network function node 101 receives FEC user plane parameters sent by the AS.

[0305] In some embodiments, the FEC user plane parameters are used to indicate the FEC configuration parameters of the PDU (such as the number of PDUs in the PDU set, the number of FEC data packets in the PDU, etc.), and the access network device 102 can perform FEC on the PDU based on the FEC user plane parameters.

[0306] Step S2104 : the core network function node 101 sends FEC user plane parameters to the access network device 102 .

[0307] In some embodiments, the UPF in the core network function node 101 sends FEC user plane parameters to the access network device 102 .

[0308] In some embodiments, the UPF determines the FEC user plane parameters associated with the PDU, marks the FEC user plane parameters in a PDU extension header of the PDU; and sends the PDU extension header to the access network device 102.

[0309] In some embodiments, the UPF may determine the FEC user plane parameters of the PDU based on the correspondence between the association information of the PDU and the FEC user plane parameters.

[0310] In some embodiments, the PDU associated information includes at least one of the following: an identifier of the PDU; and a service type associated with the PDU.

[0311] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0312] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0313] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2104. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2103 may be implemented as an independent embodiment, and step S2104 may be implemented as an independent embodiment.

[0314] For example, step S2101 combined with step S2102 can be implemented as an independent embodiment. Step S2101 combined with steps S2102 to 2104 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0315] FIG2b is an interactive diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG2b , the present disclosure embodiment relates to an information transmission method for use in a communication system 100, the method comprising:

[0316] Step S2201: The core network function node 101 obtains first information.

[0317] In some embodiments, the core network function node 101 determines the first information.

[0318] In some embodiments, the UPF in the core network function node 101 determines the first information.

[0319] In some embodiments, the first information is used to determine the FEC adopted by the data stream corresponding to the first information.

[0320] Optionally, the data stream may be an XRM data stream.

[0321] Optionally, the first information is used to determine the FEC adopted by the PDU set in the data stream corresponding to the first information.

[0322] In some embodiments, the first information is used to determine the FEC used by the data stream corresponding to the first information, or the first information is used to determine the FEC used by the PDU set in the data stream corresponding to the first information. Optionally, the data stream may be an XRM data stream.

[0323] In some embodiments, the first information carries an identifier of a data stream to indicate the corresponding data stream.

[0324] In some embodiments, a data packet header of the data stream may carry an identifier of the first information to indicate the corresponding first information.

[0325] In some embodiments, the first information is used to perform error correction on the transmitted PDU set.

[0326] In some embodiments, the first information includes FEC information.

[0327] Optionally, the FEC information includes FEC-related configuration information, etc., which is used to perform relevant configuration on the FEC of the data stream.

[0328] In some embodiments, FEC can be implemented by configuring redundant data before the data is sent to correct errors in the transmitted data.

[0329] For example, FEC corrects errors by adding redundant codes to the transmitted data stream. At the sending end, the sending device generates redundant codes according to a certain algorithm and inserts them into the data stream to be transmitted. The receiving end decodes the received data stream according to the same algorithm, determines the location of the error code based on the received code stream, and performs error correction.

[0330] In some embodiments, the QoS characteristic parameters corresponding to the PDU sets associated with different first information are different.

[0331] In some embodiments, the QoS characteristic parameters corresponding to the PDU set associated with the first information are different from the QoS characteristic parameters corresponding to the PDU set not associated with the first information.

[0332] Since the PDU set with the first information has redundant data, etc., it is different from the PDU set without the first information in parameters such as data volume and fault tolerance. Therefore, the QoS characteristic parameters of the two may be different.

[0333] For example, for the PDU sets that transmit the same video, PDU set 1 is associated with the first information, that is, PDU set 1 has FEC redundant data packets. Therefore, in addition to the video information PDU1 to PDU100, PDU set 1 also contains PDU101 to PDU150 as redundant data. However, PDU set 1 is not associated with the first information, that is, PDU set 2 does not have FEC redundant data packets, and PDU set 2 only contains the video information PDU1 to PDU100. PDU set 1 and PDU set 2 have different data volumes, and their QoS characteristic parameters can be different. For example, in order to ensure the smoothness of the video, the QoS requirement for the transmission of PDU set 2 is that all PDUs must be successfully transmitted, while since PDU set 1 has error correction capabilities, the QoS requirement for the transmission of PDU set 1 is that 90% of the PDUs must be successfully transmitted. The first information includes at least one of the following:

[0334] FEC application indication; FEC protocol description information; FEC error correction rate information; FEC data packet location information; FEC data packet importance information; indication information of the correspondence between the first information and the data stream.

[0335] In some embodiments, the FEC application indication is used to indicate whether FEC is applied.

[0336] In some embodiments, the FEC protocol description is used to indicate the protocol used for FEC.

[0337] In some embodiments, the FEC error correction rate information is used to indicate the error correction rate that can be achieved by FEC.

[0338] In some embodiments, the FEC data packet location information is used to indicate at least one of the following: whether the FEC data packet is inside or outside the data stream; and whether the data stream is an FEC data packet.

[0339] In some embodiments, the FEC data packet may be a redundant data packet used to recover the PDU during the FEC process.

[0340] For example, when transmitting PDU1 and PDU2, an FEC packet can be set and transmitted, and the FEC packet can be a redundant packet PDU3. For example, PDU3 contains PDU1 and all the contents of PDU1. When an error occurs during the transmission of PDU1 and / or PDU2, PDU3 can be used to restore PDU1 and / or PDU2.

[0341] In some embodiments, the FEC packet importance information is used to indicate at least one of the following: a comparative relationship between the set importance indication PSI of the FEC packet and the PSI of the PDU set associated with the FEC packet; FEC packet importance; FEC packet associated data stream importance; FEC packet importance indication; FEC packet associated data stream importance indication; FEC packet priority; FEC packet associated data stream priority.

[0342] In some embodiments, the FEC packet importance is used to indicate the importance of the FEC packet, for example, the FEC packet importance is 1, 2, 3, etc.

[0343] In some embodiments, the FEC packet importance indicator is used to indicate the relative importance of the FEC packet. For example, the FEC packet importance indicator is used to indicate whether the FEC packet importance is high, low, etc.

[0344] FEC packet-associated data stream, including one of the following: a data stream composed of FEC packets; a data stream containing FEC packets.

[0345] In some embodiments, the importance of the data stream associated with the FEC packet is used to indicate the importance of the data stream associated with the FEC packet. For example, the importance of the data stream associated with the FEC packet is 1, 2, 3, ...

[0346] In some embodiments, the FFEC packet associated data flow importance indicator is used to indicate the relative importance of the FEC packet associated data flow. For example, the FEC packet associated data flow importance indicator is used to indicate whether the FEC packet associated data flow is of high or low importance.

[0347] In some embodiments, the information indicating the correspondence between the first information and the data stream is used to indicate at least one of the following: whether the first information is associated with the data stream; and identification information of the data stream to which the first information is associated. In some embodiments, the first information may be associated with a service data stream, and the first information may be associated with all PDU sets in the service data stream.

[0348] In some embodiments, the first information is used to determine a quality of service (QoS) characteristic parameter associated with a set of protocol data units (PDUs) in the data flow.

[0349] In some embodiments, the first information is used by the core network function node 101 to determine a quality of service (QoS) characteristic parameter associated with a protocol data unit (PDU) set in the data flow.

[0350] In some embodiments, the QoS characteristic parameter includes at least one of the following: a PDU set delay budget PSDB; a PDU set error rate PSER; and a PDU set integrated processing indicator PSIHI.

[0351] In some embodiments, the core network function node 101 may adjust the PSDB based on the first information. For example, if the PDU set has corresponding first information, the core network function node 101 may increase the value of the PSDB.

[0352] Optionally, the PSDB of the PDU set with the first information may be larger than the PSDB of the PDU set without the first information.

[0353] Optionally, the PSDB is positively correlated with the FEC capability determined based on the first information.

[0354] In some embodiments, the core network function node 101 may adjust the PSER based on the first information. For example, if the PDU set has corresponding first information, the core network function node 101 may increase the PSER value.

[0355] Optionally, the PSER of the PDU set with the first information may be greater than the PSER of the PDU set without the first information.

[0356] Optionally, the PSER is positively correlated with the FEC capability determined according to the first information.

[0357] In some embodiments, the core network function node 101 may adjust the PSIHI based on the first information.

[0358] Optionally, the PSIHI corresponding to the PDU set without the first information is a first value; when the PSIHI is the first value, the access network device 102 needs to receive all PDUs in the PDU set.

[0359] Optionally, the PSIHI corresponding to the PDU set containing the first information is a second value. When the PSIHI is the second value, the access network device 102 does not need to receive all PDUs in the PDU set. For example, after the access network device 102 receives some PDUs in the PDU set (e.g., 99% of the PDUs), it can recover the lost PDUs (e.g., the lost 1% of the PDUs) through FEC.

[0360] In some embodiments, the first information is used for determining QoS characteristic parameters for at least one of the following: PCF in the core network function node 101; SMF in the core network function node 101.

[0361] In some embodiments, the UPF may send the determined first information to the SMF and / or PCF, etc. for determining QoS characteristic parameters.

[0362] In some embodiments, the core network function node 101 determines the first information according to at least one of an OAM configuration and a predetermined operation policy.

[0363] In some embodiments, at least one of an OAM configuration and a predetermined operation policy is used to indicate first information of a service data flow.

[0364] Optionally, the OAM configuration may configure first information corresponding to different network states.

[0365] Optionally, the predetermined operation policy may configure first information corresponding to different service data flows.

[0366] In some embodiments, the core network function node 101 modifies the QoS characteristic parameters of the first PDU set based on the first information, where the first PDU set is a PDU set associated with the first information.

[0367] The core network function node 101 modifies the QoS characteristic parameters of the first PDU set based on the first information, so that the modified QoS characteristic parameters can meet the requirements of FEC.

[0368] For example, the initial PSIHI of the PDU set is a first value. If the core network function node 101 receives the first information of the PDU set and determines that the PDU set can perform FEC, the PSIHI of the PDU set can be modified to a second value.

[0369] In some embodiments, the core network function node modifies the QoS characteristic parameters of the first PDU set based on the first information, and the core network function node modifies the QoS characteristic parameters after the modification.

[0370] In some embodiments, the modified QoS characteristic parameter is associated with the FEC capability determined based on the first information.

[0371] Optionally, the degree of modification of the QoS characteristic parameters is positively correlated with the FEC capability. For example, the stronger the FEC capability, the greater the difference between the PSDB before and after modification.

[0372] In some embodiments, the PDU set has corresponding first information, and the QoS characteristic parameters of the PDU set are not modified, allowing the core network function node 101 / access network device 102 / core network element to transmit the PDU set not based on the QoS characteristic parameters of the PDU set.

[0373] Optionally, the PDU set has corresponding first information, and the PDU set QoS characteristic parameter PSIHI is not allowed to be modified, then the core network function node 101 / access network device 102 / core network element is allowed to transmit the PDU set not based on the PSIHI of the PDU set.

[0374] For example, if the PSIHI of a PDU set is a first value, the access network device 102 needs to receive all PDUs in the PDU set when performing PDU aggregation. If not all PDUs are received, the received PDUs are discarded, and the core network function node 101 needs to retransmit the PDU set. If the PDU set has corresponding first information and the PDU set PSIHI does not allow modification, then if the access network device 102 does not receive all PDUs, it may not discard the received PDUs, but may instead perform FEC on the received PDUs. If error correction can be performed on the PDU set, the core network function node 101 may not retransmit the PDU set.

[0375] In some embodiments, the UPF in the core network function node 101 determines the first information according to at least one of an OAM configuration and a predetermined operation policy.

[0376] In some embodiments, the UPF determines the first information based on the authorization or instruction of the session management function SMF in the core network function node 101 and according to at least one of the OAM configuration and the predetermined operation policy.

[0377] Optionally, the SMF may send an indication message to the UPF, instructing the UPF to determine the first information.

[0378] Optionally, the SMF may send authorization information to the UPF, authorizing the UPF to determine the first information.

[0379] Step S2202: The core network function node 101 sends first information to the access network device 102.

[0380] In some embodiments, the UPF in the core network function node 101 sends first information to the access network device 102.

[0381] In some embodiments, the first information sent by the UPF may be determined by the UPF.

[0382] In some embodiments, the first information is carried in a PDU extension header associated with the PDU set.

[0383] Optionally, the first information is carried in PDU set information (PDU Set Information) in a PDU extension header.

[0384] Optionally, the PDU extended header includes: a general packet radio service tunneling protocol-user plane (GTP-U) extended header.

[0385] In some embodiments, the access network device 102 may perform FEC of the PDU based on the first information.

[0386] In some embodiments, when the core network function node 101 sends the first information to the access network device 102 , it may only carry the content required by the access network device 102 .

[0387] In some embodiments, the core network function node 101 may adjust the content of the first information.

[0388] Exemplarily, the first information received by the core network function node 101 indicates: an FEC application indication; and FEC protocol description information. When the core network function node 101 sends the first information to the access network device 102, the core network function node 101 may delete the FEC application indication from the first information. The access network device 102 applies FEC by default based on the FEC protocol description information.

[0389] Step S2203: The core network function node 101 receives FEC user plane parameters.

[0390] In some embodiments, the UPF in the core network function node 101 receives FEC user plane parameters sent by the AS.

[0391] In some embodiments, the FEC user plane parameters are used to indicate the FEC configuration parameters of the PDU (such as the number of PDUs in the PDU set, the number of FEC data packets in the PDU, etc.), and the access network device 102 can perform FEC on the PDU based on the FEC user plane parameters.

[0392] Step S2104 : the core network function node 101 sends FEC user plane parameters to the access network device 102 .

[0393] In some embodiments, the UPF in the core network function node 101 sends FEC user plane parameters to the access network device 102 .

[0394] In some embodiments, the UPF determines the FEC user plane parameters associated with the PDU, marks the FEC user plane parameters in a PDU extension header of the PDU; and sends the PDU extension header to the access network device 102.

[0395] In some embodiments, the UPF may determine the FEC user plane parameters of the PDU based on the correspondence between the association information of the PDU and the FEC user plane parameters.

[0396] In some embodiments, the PDU associated information includes at least one of the following: an identifier of the PDU; and a service type associated with the PDU.

[0397] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0398] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0399] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S2201 to S2204. For example, step S2201 may be implemented as an independent embodiment, step S2202 may be implemented as an independent embodiment, step S2203 may be implemented as an independent embodiment, and step S2204 may be implemented as an independent embodiment.

[0400] For example, step S2201 combined with step S2202 can be implemented as an independent embodiment. Step S2201 combined with steps S2202 to S2204 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0401] Figure 3a is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in Figure 3a, the embodiment of the present disclosure relates to an information transmission method, which is executed by core network function node 101101. The method includes:

[0402] Step S3101: Obtain first information.

[0403] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0404] Step S3102: Send first information to the access network device 102.

[0405] In some embodiments, the optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0406] Step S3103: Receive FEC user plane parameters.

[0407] In some embodiments, the optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0408] Step S3104: Send FEC user plane parameters to the access network device 102.

[0409] In some embodiments, the optional implementation of step S3104 can refer to the optional implementation of step S2104 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0410] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3104. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, step S3103 may be implemented as an independent embodiment, and step S3104 may be implemented as an independent embodiment.

[0411] For example, step S3101 combined with step S3102 can be implemented as an independent embodiment. Step S3101 combined with steps S3102 to S3104 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0412] FIG3b is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3b, the embodiment of the present disclosure relates to an information transmission method, which is executed by core network function node 101101. The method includes:

[0413] Step S3201: Obtain first information.

[0414] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2201 in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0415] Step S3202: Send first information to the access network device 102.

[0416] In some embodiments, the optional implementation of step S3202 can refer to the optional implementation of step S2202 in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0417] Step S3203: Receive FEC user plane parameters.

[0418] In some embodiments, the optional implementation of step S3203 can refer to the optional implementation of step S2203 in Figure 2b and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0419] Step S3204: Send FEC user plane parameters to the access network device 102.

[0420] In some embodiments, the optional implementation of step S3204 can refer to the optional implementation of step S2204 in Figure 2b and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0421] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S3201 to S3204. For example, step S3201 may be implemented as an independent embodiment, step S3202 may be implemented as an independent embodiment, step S3203 may be implemented as an independent embodiment, and step S3204 may be implemented as an independent embodiment.

[0422] For example, step S3201 combined with step S3202 can be implemented as an independent embodiment. Step S3201 combined with steps S3202 to S3204 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0423] FIG3c is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3b, the embodiment of the present disclosure relates to an information transmission method, which is executed by core network function node 101101. The method includes:

[0424] Step S3301: Obtain first information.

[0425] In some embodiments, the first information is used to determine a quality of service (QoS) characteristic parameter associated with a set of protocol data units (PDUs) in the data flow.

[0426] In some embodiments, the QoS characteristic parameters corresponding to the PDU set associated with the first information are different from the QoS characteristic parameters corresponding to the PDU set not associated with the first information.

[0427] In some embodiments, the first information is used to perform error correction on the transmitted PDU set.

[0428] In some embodiments, the method further comprises:

[0429] The QoS characteristic parameters of a first PDU set are modified based on the first information, where the first PDU set is a PDU set associated with the first information.

[0430] In some embodiments, the first information includes at least one of the following:

[0431] FEC application indication; FEC protocol description information; FEC error correction rate information; FEC data packet location information; FEC data packet importance information; indication information of the correspondence between the first information and the data stream.

[0432] In some embodiments, obtaining the first information includes at least one of the following: receiving the first information sent by the application device 103; and determining the first information according to at least one of an operation, maintenance and management (OAM) configuration and a predetermined operation policy.

[0433] In some embodiments, receiving the first information sent by the application device 103 includes at least one of the following:

[0434] The policy control function PCF in the core network function node 101 receives the first information sent by the application function AF;

[0435] The user plane function UPF in the core network function node 101 receives the first information sent by the application server AS.

[0436] In some embodiments, the method further comprises:

[0437] The UPF in the core network function node 101 receives the FEC user plane parameters sent by the AS.

[0438] In some embodiments, the method further comprises:

[0439] The UPF sends the FEC user plane parameters to the access network device 102 .

[0440] In some embodiments, the UPF sends FEC user plane parameters to the access network device 102, including:

[0441] The UPF determines the FEC user plane parameters associated with the PDU and marks the FEC user plane parameters in the PDU extension header of the PDU;

[0442] The PDU extension header is sent to the access network device 102 .

[0443] In some embodiments, determining the first information according to at least one of an OAM configuration and a predetermined operation policy includes:

[0444] The UPF in the core network function node 101 determines the first information according to at least one of the OAM configuration and the predetermined operation policy.

[0445] In some embodiments, the UPF in the core network function node 101 determines the first information according to at least one of an OAM configuration and a predetermined operation policy, including:

[0446] The UPF determines the first information based on the authorization or instruction of the session management function SMF in the core network function node 101 and according to at least one of the OAM configuration and the predetermined operation policy.

[0447] In some embodiments, obtaining the first information includes at least one of the following:

[0448] The SMF in the core network function node 101 receives the first information sent by the PCF in the core network function node 101;

[0449] The access and mobility management function AMF in the core network function node 101 receives the first information sent by the SMF;

[0450] The UPF in the core network function node 101 receives the first information sent by the SMF.

[0451] In some embodiments, the SMF in the core network function node 101 receives the first information sent by the PCF, including:

[0452] The SMF receives the policy control and charging PCC rule carrying the first information sent by the PCF.

[0453] In some embodiments, the method further comprises:

[0454] The first information is sent to the access network device 102.

[0455] In some embodiments, sending the first information to the access network device 102 includes at least one of the following:

[0456] The UPF in the core network function node 101 sends the first information to the access network device 102;

[0457] The SMF in the core network function node 101 sends the first information to the access network device 102 through the AMF.

[0458] In some embodiments, the first information is carried in a PDU extension header associated with the PDU set.

[0459] In some embodiments, the QoS characteristic parameter includes at least one of the following: a PDU set delay budget PSDB; a PDU set error rate PSER; and a PDU set integrated processing indicator PSIHI.

[0460] In some embodiments, the first information is used for determining QoS characteristic parameters for at least one of the following: PCF in the core network function node 101; SMF in the core network function node 101.

[0461] FIG4a is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3a, the present disclosure embodiment relates to an information transmission method, which is executed by the access network device 102. The method includes:

[0462] Step S4101: Obtain first information.

[0463] The optional implementation of step S4101 can refer to the optional implementation of step S2102 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0464] The optional implementation of step S4101 can refer to the optional implementation of step S2202 in Figure 2b and other related parts in the embodiment involved in Figure 2b, which will not be repeated here.

[0465] In some embodiments, the access network device 102 receives the first information sent by the core network function node 101, but is not limited thereto and may also receive the first information sent by other entities.

[0466] In some embodiments, the access network device 102 obtains first information specified by a protocol.

[0467] In some embodiments, the access network device 102 obtains the first information from an upper layer(s).

[0468] In some embodiments, the access network device 102 performs processing to obtain the first information.

[0469] In some embodiments, step S4101 is omitted, and the access network device 102 autonomously implements the function indicated by the first information, or the above function is default or by default.

[0470] Step S4102: Obtain FEC user plane parameters.

[0471] The optional implementation of step S4102 can refer to the optional implementation of step S2104 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0472] The optional implementation of step S4102 can refer to the optional implementation of step S2204 in Figure 2b and other related parts in the embodiment involved in Figure 2b, which will not be repeated here.

[0473] In some embodiments, the access network device 102 receives FEC user plane parameters sent by the core network function node 101, but is not limited thereto and may also receive FEC user plane parameters sent by other entities.

[0474] In some embodiments, the access network device 102 obtains FEC user plane parameters specified by the protocol.

[0475] In some embodiments, the access network device 102 obtains FEC user plane parameters from upper layer(s).

[0476] In some embodiments, the access network device 102 performs processing to obtain FEC user plane parameters.

[0477] In some embodiments, step S4101 is omitted, and the access network device 102 autonomously implements the functions indicated by the FEC user plane parameters, or the above functions are default or acquiescent.

[0478] The information transmission method involved in the embodiment of the present disclosure may include at least one of step S4201 to step S4202. For example, step S4201 may be implemented as an independent embodiment, and step S4202 may be implemented as an independent embodiment, but is not limited thereto.

[0479] FIG4b is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4b, the present disclosure embodiment relates to an information transmission method, which is executed by the access network device 102. The method includes:

[0480] Step S4201: Receive first information sent by the core network function node 101.

[0481] In some embodiments, the first information is used to determine a quality of service (QoS) characteristic parameter associated with a set of protocol data units (PDUs) in the data flow.

[0482] In some embodiments, the QoS characteristic parameters corresponding to the PDU set associated with the first information are different from the QoS characteristic parameters corresponding to the PDU set not associated with the first information.

[0483] In some embodiments, the first information is used to perform error correction on the transmitted PDU set.

[0484] In some embodiments, the first information is used by the core network function node to modify QoS characteristic parameters of a first PDU set, where the first PDU set is a PDU set associated with the first information.

[0485] In some embodiments, the first information includes at least one of the following: FEC application indication; FEC protocol description information; FEC error correction rate information; FEC data packet location information; FEC data packet importance information; and indication information of the correspondence between the first information and the data stream.

[0486] In some embodiments, the first information is received by the core network function node 101 from the application device 103; and / or

[0487] The first information is determined by the core network function node 101 according to at least one of an operation, maintenance and management (OAM) configuration and a predetermined operation policy.

[0488] In some embodiments, the first information is received by the policy control function PCF in the core network function node 101 from the application function AF; and / or

[0489] The first information is received by the user plane function UPF in the core network function node 101 from the application server AS.

[0490] In some embodiments, the first information is determined by the UPF in the core network function node 101 according to at least one of an OAM configuration and a predetermined operation policy.

[0491] In some embodiments, receiving the first information sent by the core network function node 101 includes at least one of the following:

[0492] Receiving first information sent by the UPF in the core network function node 101;

[0493] Receive the first information sent by the SMF in the core network function node 101 through the AMF.

[0494] In some embodiments, the first information is carried in a PDU extension header associated with the PDU set.

[0495] In some embodiments, the QoS characteristic parameter includes at least one of the following: a PDU set delay budget PSDB; a PDU set error rate PSER; and a PDU set integrated processing indicator PSIHI.

[0496] In some embodiments, the method further comprises:

[0497] Receive FEC user plane parameters sent by the UPF in the core network function node 101.

[0498] In some embodiments, the UPF sends FEC user plane parameters to the access network device 102, including:

[0499] Receive a PDU extension header marked with FEC user plane parameters.

[0500] In some embodiments, the first information is used for determining QoS characteristic parameters for at least one of the following: PCF in the core network function node 101; SMF in the core network function node 101.

[0501] FIG4c is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4c, the present disclosure embodiment relates to an information transmission method, which is executed by the application device 103 and includes:

[0502] Step S4301: Send the first message.

[0503] The optional implementation of step S4301 can refer to the optional implementation of step S2101 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0504] Step S4302: Send FEC user plane parameters.

[0505] The optional implementation of step S4401 can refer to the optional implementation of step S2103 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0506] FIG4 d is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4 d , the present disclosure embodiment relates to an information transmission method, which is executed by the application device 103 and includes:

[0507] Step S4401: Send FEC user plane parameters.

[0508] The optional implementation of step S4401 can refer to the optional implementation of step S2203 in Figure 2b and other related parts in the embodiment involved in Figure 2b, which will not be repeated here.

[0509] FIG4e is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4e , the present disclosure embodiment relates to an information transmission method, which is executed by the application device 103 and includes:

[0510] Step S4501: Send first information to the core network function node 101.

[0511] In some embodiments, the first information is used to determine a quality of service (QoS) characteristic parameter associated with a set of protocol data units (PDUs) in the data flow.

[0512] In some embodiments, the QoS characteristic parameters corresponding to the PDU set associated with the first information are different from the QoS characteristic parameters corresponding to the PDU set not associated with the first information.

[0513] In some embodiments, the first information is used to perform error correction on the transmitted PDU set.

[0514] In some embodiments, the first information is used by the core network function node to modify QoS characteristic parameters of a first PDU set, where the first PDU set is a PDU set associated with the first information.

[0515] In some embodiments, the first information includes at least one of the following: FEC application indication; FEC protocol description information; FEC error correction rate information; FEC data packet location information; FEC data packet importance information; and indication information of the correspondence between the first information and the data stream.

[0516] In some embodiments, the application device 103 includes one of the following: an application function AF; an application server AS.

[0517] In some embodiments, sending the first information to the core network function node 101 includes at least one of the following:

[0518] The AF sends the first information to the policy control function PCF in the core network function node 101;

[0519] The AS sends the first information to the user plane function UPF in the core network function node 101.

[0520] In some embodiments, the method further comprises:

[0521] The AS sends the FEC user plane parameters to the UPF in the core network function node 101 .

[0522] In some embodiments, the first information is sent by the UPF in the core network function node 101 to the access network device 102; and / or

[0523] The first information is sent by the AMF in the core network function node 101 to the access network device 102.

[0524] In some embodiments, the first information is carried in a PDU extension header associated with the PDU set.

[0525] In some embodiments, the QoS characteristic parameter includes at least one of the following: a PDU set delay budget PSDB; a PDU set error rate PSER; and a PDU set integrated processing indicator PSIHI.

[0526] In some embodiments, the first information is used for determining QoS characteristic parameters for at least one of the following: PCF in the core network function node 101; SMF in the core network function node 101.

[0527] FIG5 is an interactive diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG5 , the present disclosure embodiment relates to an information transmission method for a communication system 100, and the method includes one of the following steps:

[0528] Step S5101: The core network function node 101 obtains the first information sent by the application device 103.

[0529] In some embodiments, the first information is used to determine a quality of service (QoS) characteristic parameter associated with a set of protocol data units (PDUs) in the data flow;

[0530] For optional implementations of step S5101, please refer to step S2101 in Figure 2a, step S2201 in Figure 2b, step S3101 in Figure 3a, step S3201 in Figure 3b, step S3301 in Figure 3c, step S4301 in Figure 4c, step S4501 in Figure 4e, and other related parts in the embodiments involved in Figures 2a, 2b, 3a, 3b, 3c, 4c, and 4e, which will not be repeated here.

[0531] Step S5102: The access network device 102 receives the first information sent by the core network function node 101.

[0532] For optional implementation methods of step S5102, please refer to step S2102 of Figure 2a, step S2202 of Figure 2b, step S3102 of Figure 3a, step S3203 of Figure 3b, step S4101 of Figure 4a, step S4201 of Figure 4b, and other related parts of the embodiments involved in Figures 2a, 2b, 3a, 3b, 4a, and 4b, which will not be repeated here.

[0533] In some embodiments, the above method may include the methods of the above-mentioned embodiments on the communication system side, the application device 103 side, the core network function node 101 side, the access network device 102 side, etc., which will not be repeated here.

[0534] The following provides a specific example in combination with any of the above embodiments:

[0535] Example 1:

[0536] AF side:

[0537] The AF sends FEC information to the 5GC (NEF / PCF), where the FEC information includes at least one of the following: FEC application indication, FEC protocol description, FEC error correction rate information, in-band or out-of-band format, whether it is an FEC packet, PSI indication of the FEC packet, whether it is associated with a data stream, and information about the associated data stream.

[0538] Optionally, the AF may send FEC information (ie, the first information in the embodiments of FIG. 2a and FIG. 2b ) to the NEF / PCF in the AF QoS request process and / or the QoS update process.

[0539] PCF side:

[0540] The PCF determines the PCC rule based at least on the FEC information (ie, the FEC information is used as one of the input information of the PCC rule), wherein the FEC information is provided by the AF.

[0541] Optionally, the PCF sends FEC information to the SMF. Further, the PCF may send the FEC information to the SMF in the PCC rule).

[0542] SMF side:

[0543] After receiving the PCC rules, the SMF determines the QoS rules and QoS set parameters based at least on the FEC information to configure / activate the rules of the UPF (e.g., through the N4 session).

[0544] UPF side:

[0545] The UPF identifies and determines, based at least on the FEC information, PDU Set Information to be sent to the NG-RAN in an extension header (e.g., a GTP-U header). Further, the UPF sends the FEC information to the NG-RAN in an extension header (e.g., a GTP-U header).

[0546] Alternative solution: transmission via the user plane.

[0547] FEC information is provided by the AS to the UPF (either directly or through the NEF). The FEC information includes at least one of the following: FEC application indication, FEC protocol description, FEC error correction rate information, in-band or out-of-band format, whether it is an FEC packet, PSI indication of the FEC packet, whether it is associated with a data stream, and information about the associated data stream.

[0548] The UPF considers the FEC information, identifies and determines the PDU set information to be sent to the NG-RAN in the extended header (e.g., GTP-U header).

[0549] Furthermore, the UPF sends FEC information to the NG-RAN in an extended header (e.g., a GTP-U header).

[0550] Alternative solution: UPF local configuration solution).

[0551] Based on OAM configuration or operator policy, the UPF also considers the FEC information and identifies and determines the set of PDUs it sends to the NG-RAN in an extended header (e.g., GTP-U header). The FEC information includes at least one of the following: FEC application indication, FEC protocol description, FEC error correction rate information, in-band or out-of-band format, whether it is an FEC packet, PSI indication of the FEC packet, whether it is associated with a data flow, and information about the associated data flow.

[0552] Furthermore, the UPF sends FEC information to the NG-RAN in an extended header (e.g., a GTP-U header).

[0553] Example 2: Setting up an AF session using the required QoS procedure, as shown in Figure 6a, includes the following steps:

[0554] Step 6101: The AF sends an AF session resource request, for example, through the Nnef_AFsessionWithQoS_Create request, to create an AF request. The AF carries the QoS requirements for the XRM service and interactive media service data streams in the request message. The AF sends REC information to the 5GC (NEF / PCF). The FEC information includes at least one of the following: FEC application indication, FEC protocol description, FEC error correction rate information, in-band or out-of-band format, whether it is an FEC packet, the PSI indication of the FEC packet, whether it is associated with a data stream, and information about the associated data stream. The AF can send FEC information to the NEF / PCF during the AF QoS request process and / or the QoS update process.

[0555] Optionally, the AF may carry XRM service information in the AF request to identify the XRM service data flow or data flow group, such as: multi-modal service ID, UE address / UE identifier, AF identifier application ID, data flow description, data network name (DNN), single network slice selection assistance information (S-NSSAI), QoS parameters and other corresponding information. Here, the multi-modal service ID can be used to identify all data flows in the XRM service group.

[0556] Step 6102: The NEF authorizes the AF request. If the AF is untrusted, the NEF sends the AF request to the PCF through the NEF. (Optionally, the NEF performs relevant mappings, including mapping the XRM service identifier (AF-Service-Identifier) ​​to the DNN and S-NSSAI, mapping external applications to CN application identifiers, and mapping external UE identifiers to CN internal UE identifiers (such as SUPI) based on UDM subscription information, as well as mapping external to internal XRM service group identifiers based on UDM subscription information.)

[0557] In step 6103, the NEF authorizes the AF request and, based on the parameters provided by the AF, determines whether to invoke the Time Sensitive Communication Time Synchronization Function (TSCTSF) or directly connect to the PCF. The PCF receives the parameters provided by the AF from the NEF or TSCTSF. The NEF triggers the Npcf_PolicyAuthorization_Create request and sends the AF request to the PCF, carrying the QoS requirements for the PCF policy rules. The message carries the FEC information for the corresponding Service Data Flow (SDF).

[0558] Step 6104: PCF makes a policy decision: The PCF may determine that updated or new policy information needs to be sent to the SMF.

[0559] The PCF determines the PCC rule based at least on the FEC information (ie, the FEC information is used as one of the input information of the PCC rule), wherein the FEC information is provided by the AF.

[0560] Optionally, the PCF sends FEC information to the SMF. Further, the PCF may send the FEC information to the SMF in the PCC rule).

[0561] Step 6105: PCF responds Npcf_Policy Authorization_Create response to NEF.

[0562] Step 6106: NEF sends a Nnef_AFsessionWithQoS_Create response message to AF. The Nnef_AFsessionWithQoS_Create response message carries the request result, informing whether the request is authorized.

[0563] Step 6107: The PCF initiates a Session Management (SM) policy association modification request (SM Policy Association Modification request) to the SMF (PCC rule (inter-burst time)).

[0564] After receiving the PCC rules, the SMF determines the QoS rules and QoS set parameters based at least on the FEC information to configure / activate the rules of the UPF (e.g., through the N4 session).

[0565] Step 6108: The SMF responds with an SM Policy Association Modification response to the PCF.

[0566] Step 6109: SMF initiates an N4 session modification request (FEC information) to UPF.

[0567] Step 6110: UPF responds to SMF.

[0568] The UPF identifies and determines, based at least on the FEC information, the PDU set information to be sent to the NG-RAN in an extended header (e.g., a GTP-U header). Furthermore, the UPF sends the FEC information to the NG-RAN in an extended header (e.g., a GTP-U header), thereby enabling the FEC information to be sent to the RAN via the user plane.

[0569] Step 6111: For the modification requested by SMF, SMF calls Namf_Communication_N1N2MessageTransfer (which may include; [N2SM information] (PDU session ID, QFI, QoS profile), N1SM container).

[0570] Optionally, SMF can send FEC information to AMF.

[0571] Step 6112: AMF may send an N2 message to (R)AN (which may include: [SM information received by N2 from SMF], NAS message (PDU session ID, N1SM container (PDU session modification command)).

[0572] Optionally, the AMF may send the FEC information to the (R)AN, thereby enabling the FEC information to be sent to the RAN via the control plane.

[0573] Step 6114: RAN performs UE resource configuration.

[0574] Step 6114: The (R)AN may confirm the N2PDU session request by sending an N2PDU session confirm message to the AMF.

[0575] Step 6115: AMF forwards the N2SM information received from AN to SMF through the Nsmf_PDUSession_UpdateSMContext request service operation.

[0576] Step 6116: SMF responds with a Nsmf_PDUSession_UpdateSMContext response.

[0577] Steps 6117-6118, SMF can update the N4 session of the UPF involved in the PDU session modification by sending an N4 session modification request message to the UPF.

[0578] Example 3: QoS processing based on PDU sets, as shown in Figure 6b, includes the following steps:

[0579] Step 6201a: Execute the PDU session establishment process.

[0580] Step 6201b: The AF may send information (QoS parameters for each PDU set within the QoS flow and parameters related to frame identification) to the PCF via the Nnef_AFsessionWithQoS_Create request. The AF may also provide this information to the 5GS before the PDU session is established.

[0581] The AF sends FEC information to the 5GC (NEF / PCF), where the FEC information includes at least one of the following: FEC application indication, FEC protocol description, FEC error correction rate information, in-band or out-of-band format, whether it is an FEC packet, PSI indication of the FEC packet, whether it is associated with a data stream, and information about the associated data stream.

[0582] This includes protocol description and auxiliary information related to the PDU set. The auxiliary information related to the PDU set may include the QoS parameters of each PDU set in the QoS flow:

[0583] -PDU set processing indication (indicates whether PDU set-based processing should be activated for the data flow). This indication can be implicitly indicated via other PDU set related information provided by the AF.

[0584] - Whether the application layer needs all PDUs when using the PDU set;

[0585] -PDU set delay budget;

[0586] -PDU set error rate.

[0587] Step 6202: The PCF generates appropriate PCC rules, which may include QoS parameters related to the PDU set (as described below). The PCF sends the PCC rules to the SMF.

[0588] The PCF determines the PCC rule based at least on the FEC information (ie, the FEC information is used as one of the input information of the PCC rule), wherein the FEC information is provided by the AF.

[0589] The PCF sends the FEC information received from the AF / NEF to the SMF according to the PCC rule.

[0590] Among them, PDU Set related QoS parameters are new QoS parameters for PDU Set-based QoS processing in 5GS, and may also include:

[0591] -PDU Set Delay Budget (PSDB);

[0592] -PDU Set Error Rate (PSER);

[0593] - Whether the application layer needs all PDUs when using the PDU set;

[0594] - Whether to discard PDU sets when PSDB is exceeded.

[0595] Step 6202 can be completed during the PDU session establishment process or during the PDU session modification process.

[0596] Optionally, the PCF considers information provided by the AF to generate PCC rules.

[0597] Step 6203: The SMF generates a QoS profile and N4 rules based on the PCC rules from the PCF. The SMF sends the N4 rules to the UPF and sends the QoS profile to the RAN node through the AMF.

[0598] After receiving the PCC rules, the SMF determines the QoS rules and QoS set parameters based at least on the FEC information to configure / activate the rules of the UPF (e.g., through the N4 session).

[0599] Upon receiving the PCC rules, the SMF forwards the indication of the PSI to the UPF (e.g., via the N4 session).

[0600] The protocol description and auxiliary information related to the PDU set are sent to the SMF as part of the PCC rules. The SMF sends them to the NG-RAN via the AMF as part of the QoS profile.

[0601] Step 6203 is completed during the PDU session establishment process or the PDU session modification process.

[0602] Step 6204: Execute the remaining steps of the PDU session establishment or modification process.

[0603] Step 6205: Based on the received N4 rules or local configuration on the UPF, the UPF identifies relevant information (as follows) and performs QoS processing based on the PDU set according to the N4 rule instructions.

[0604] The UPF identifies a PDU as belonging to a PDU set and identifies the following information for each PDU set:

[0605] The UPF identifies and determines, based at least on the FEC information, PDU Set Information to be sent to the NG-RAN in an extension header (e.g., a GTP-U header). Further, the UPF sends the FEC information to the NG-RAN in an extension header (e.g., a GTP-U header).

[0606] Alternative solution: transmission via the user plane.

[0607] FEC information is provided by the AS to the UPF (either directly or through the NEF). The FEC information includes at least one of the following: FEC application indication, FEC protocol description, FEC error correction rate information, in-band or out-of-band format, whether it is an FEC packet, PSI indication of the FEC packet, whether it is associated with a data stream, and information about the associated data stream.

[0608] The UPF considers the FEC information, identifies and determines the PDU set information to be sent to the NG-RAN in the extended header (e.g., GTP-U header).

[0609] Furthermore, the UPF sends FEC information to the NG-RAN in an extended header (e.g., a GTP-U header).

[0610] Alternative solution: UPF local configuration solution).

[0611] Based on OAM configuration or operator policy, the UPF also considers the FEC information and identifies and determines the set of PDUs it sends to the NG-RAN in an extended header (e.g., GTP-U header). The FEC information includes at least one of the following: FEC application indication, FEC protocol description, FEC error correction rate information, in-band or out-of-band format, whether it is an FEC packet, PSI indication of the FEC packet, whether it is associated with a data flow, and information about the associated data flow.

[0612] The parameters of the PD set include:

[0613] -PDU set sequence number (SN) (a QoS flow is identified by a QoS flow ID, and each PDU set in a QoS flow is identified by a PDU set SN. Each QoS flow can be used to deliver one or more PDU sets.);

[0614] - Start / end PDU of a PDU set;

[0615] -PDU SN in the PDU set;

[0616] -The number of PDUs in the PDU set;

[0617] -PDU set importance;

[0618] -PDU set size;

[0619] -End of data burst.

[0620] The UPF identifies relevant information through the following methods / mechanisms:

[0621] Option 1: By matching the RTP / STP header and payload;

[0622] Option 2: New RTP extension header;

[0623] Option 3: Information provided by the AS in the N6 encapsulation header, such as GTP-U;

[0624] Option 4: Through detection based on traffic characteristics;

[0625] Option 5: Perform UPF via a non-standardized mechanism.

[0626] Step 6206: The UPF sends PDU Set information to the RAN. The UPF provides the RAN with the above PDU set related information (listed in the related information in step 6205). The UPF adds the PDU set related information in step 6205 to the GTP-U header.

[0627] Step 6207: Based on the PDU set related information received in step 6206, the RAN performs QoS processing based on the PDU set.

[0628] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., access network device 102, core network function node 101, core network function node, etc.) in any of the above methods.

[0629] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0630] In the embodiment of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0631] Figure 7a is a structural diagram of the core network function node proposed in an embodiment of the present disclosure. As shown in Figure 7a, the core network function node 7100 may include: a transceiver module 7101. In some embodiments, the above-mentioned transceiver module 7101 is configured to obtain first information of the application device, wherein the first information is used to determine the quality of service QoS characteristic parameters associated with the protocol data unit PDU set in the data stream. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving performed by the core network function node 101 in any of the above methods (for example, step S2101, step 2102, step 2103, step 2104, step S2201, step 2202, step 2203, step 2204 but not limited thereto), which will not be repeated here.

[0632] Figure 7b is a structural diagram of the access network device proposed in an embodiment of the present disclosure. As shown in Figure 7b, the access network device 7200 may include: a transceiver module 7201. In some embodiments, the above-mentioned transceiver module 7201 is configured to receive first information of the application device sent by the core network function node, wherein the first information is used to determine the quality of service QoS characteristic parameters associated with the protocol data unit PDU set in the data stream. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2101, step 2103, step S2201, step 2203 but not limited thereto) performed by the access network device 102 in any of the above methods, which will not be repeated here.

[0633] Figure 7c is a structural diagram of the application device proposed in an embodiment of the present disclosure. As shown in Figure 7b, the application device 7300 may include: a transceiver module 7301. In some embodiments, the above-mentioned transceiver module 7301 is configured to send first information of the application device to the core network function node 101, wherein the first information is used to determine the quality of service QoS characteristic parameters associated with the protocol data unit PDU set in the data stream. Optionally, the above-mentioned transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the application device 103 in any of the above methods (for example, step S2104, step 2204 but not limited thereto), which will not be repeated here.

[0634] Figure 8a is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network function node 101, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0635] As shown in Figure 8a, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.

[0636] 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 transceiver 8102 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, step 2102, step 2103, step 2104, step S2201, step 2202, step 2203, step 2204, but not limited thereto), and the processor 8101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0637] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memory 8102 and may be configured to receive data from the memory 8102 or other devices, or to send data to the memory 8102 or other devices. For example, the interface circuits 8104 may read data stored in the memory 8102 and send the data to the processor 8101.

[0638] The communication device 8100 described in the above embodiment 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 limited by FIG. 8a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0639] FIG8b is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 8200 shown in FIG8b, but the present disclosure is not limited thereto.

[0640] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0641] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.

[0642] In some embodiments, the interface circuit 8202 performs at least one of the communication steps, such as sending and / or receiving, in the above method (e.g., step S2101, step 2102, step 2103, step 2104, step S2201, step 2202, step 2203, and step 2204, but not limited thereto). The interface circuit 8202 performing the communication steps, such as sending and / or receiving, in the above method, for example, means that the interface circuit 8202 performs data exchange between the processor 8201, chip 8200, memory 8203, or a transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps.

[0643] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0644] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0645] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. An information transmission method, performed by a core network function node, wherein: The method comprises: First information is obtained, wherein the first information is used to determine a quality of service (QoS) characteristic parameter associated with a protocol data unit (PDU) set in a data stream.

2. The method according to claim 1, wherein: The QoS characteristic parameters corresponding to the PDU set associated with the first information are different from the QoS characteristic parameters corresponding to the PDU set not associated with the first information.

3. The method according to claim 1 or 2, wherein: The first information is used to perform error correction on the transmitted PDU set.

4. The method according to any one of claims 1 to 3, wherein: The method further comprises: The QoS characteristic parameters of a first PDU set are modified based on the first information, where the first PDU set is a PDU set associated with the first information.

5. The method according to claim 1, wherein: The first information includes at least one of the following: Forward error correction FEC application indication; FEC protocol description information; FEC error correction rate information; FEC data packet location information; FEC data packet importance information; The indication information of the correspondence between the first information and the data stream.

6. The method according to any one of claims 1 to 5, wherein: The obtaining of the first information includes at least one of the following: Receiving the first information sent by the application device; The first information is determined according to at least one of an operation, maintenance and management (OAM) configuration and a predetermined operation policy.

7. The method according to claim 6, wherein: The receiving the first information sent by the application device includes at least one of the following: The policy control function PCF in the core network function node receives the first information sent by the application function AF; The user plane function UPF in the core network function node receives the first information sent by the application server AS.

8. The method according to any one of claims 1 to 7, wherein: The method further comprises: The UPF in the core network function node receives the FEC user plane parameters sent by the AS.

9. The method according to claim 8, wherein: The method further comprises: The UPF sends the FEC user plane parameters to the access network device.

10. The method according to claim 9, wherein: The UPF sends the FEC user plane parameters to the access network device, including: The UPF determines the FEC user plane parameters associated with the PDU, and marks the FEC user plane parameters in a PDU extension header of the PDU; Send the PDU extension header to the access network device.

11. The method according to claim 5, wherein: The determining the first information according to at least one of an OAM configuration and a predetermined operation strategy includes: The UPF in the core network function node determines the first information according to at least one of the OAM configuration and the predetermined operation policy.

12. The method according to claim 11, wherein: The UPF in the core network function node determines the first information according to at least one of the OAM configuration and the predetermined operation policy, including: The UPF determines the first information based on the authorization or instruction of the session management function SMF in the core network function node and according to at least one of the OAM configuration and the predetermined operation policy.

13. The method according to any one of claims 1 to 12, wherein: The obtaining of the first information includes at least one of the following: The SMF in the core network function node receives the first information sent by the PCF in the core network function node; The access and mobility management function AMF in the core network function node receives the first information sent by the SMF; The UPF in the core network function node receives the first information sent by the SMF.

14. The method according to claim 13, wherein: The SMF in the core network function node receives the first information sent by the PCF, including: The SMF receives the policy control and charging PCC rules carrying the first information sent by the PCF.

15. The method according to any one of claims 1 to 14, wherein: The method further comprises: Send the first information to the access network device.

16. The method according to claim 15, wherein: The sending the first information to the access network device includes at least one of the following: The UPF in the core network function node sends the first information to the access network device; The SMF in the core network function node sends the first information to the access network device through the AMF.

17. The method according to claim 16, wherein: The first information is carried in a PDU extension header associated with the PDU set.

18. The method according to any one of claims 1 to 17, wherein: The QoS characteristic parameter includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; PDU set integrated processing indication PSIHI.

19. The method according to any one of claims 1 to 18, wherein: The first information is used for determining the QoS characteristic parameter by at least one of the following: PCF in the core network function node; The SMF in the core network function node.

20. An information transmission method, executed by an application device, wherein: The method comprises: Sending first information of an application device to a core network function node, wherein the first information is used to determine a quality of service QoS characteristic parameter associated with a protocol data unit PDU set in a data stream.

21. The method according to claim 20, wherein: The QoS characteristic parameters corresponding to the PDU set associated with the first information are different from the QoS characteristic parameters corresponding to the PDU set not associated with the first information.

22. The method according to claim 20 or 21, wherein: The first information is used to perform error correction on the transmitted PDU set.

23. The method according to any one of claims 20 to 22, wherein: The first information is used by the core network function node to modify the QoS characteristic parameters of the first PDU set, and the first PDU set is a PDU set associated with the first information.

24. The method according to any one of claims 20 to 23, wherein: The first information is used to indicate at least one of the following: FEC application instructions; FEC protocol description information; FEC error correction rate information; FEC data packet location information; FEC data packet importance information; The indication information of the correspondence between the first information and the data stream.

25. The method according to any one of claims 20 to 24, wherein: The application device includes one of the following: an application function AF; an application server AS.

26. The method according to claim 25, wherein: The sending the first information to the core network function node includes at least one of the following: The AF sends the first information to a policy control function PCF in the core network function node; The AS sends the first information to the user plane function UPF in the core network function node.

27. The method according to claim 25, wherein: The method further comprises: The AS sends FEC user plane parameters to the UPF in the core network function node.

28. The method according to any one of claims 20 to 27, wherein: The first information is sent by the UPF in the core network function node to the access network device; and / or The first information is sent by the AMF in the core network function node to the access network device.

29. The method according to claim 28, wherein: The first information is carried in a PDU extension header associated with the PDU set.

30. The method according to any one of claims 20 to 29, wherein: The QoS characteristic parameter includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; PDU set integrated processing indication PSIHI.

31. The method according to any one of claims 20 to 30, wherein: The first information is used for determining the QoS characteristic parameter by at least one of the following: PCF in the core network function node; The SMF in the core network function node.

32. An information transmission method, executed by an access network device, wherein: The method comprises: Receive first information of an application device sent by a core network function node, wherein the first information is used to determine a quality of service QoS characteristic parameter associated with a protocol data unit PDU set in a data stream.

33. The method of claim 32, wherein: The QoS characteristic parameters corresponding to the PDU set associated with the first information are different from the QoS characteristic parameters corresponding to the PDU set not associated with the first information.

34. The method according to claim 32 or 33, wherein: The first information is used to perform error correction on the transmitted PDU set.

35. The method according to any one of claims 32 to 34, wherein: The first information is used by the core network function node to modify the QoS characteristic parameters of the first PDU set, and the first PDU set is a PDU set associated with the first information.

36. The method according to any one of claims 32 to 35, wherein: The first information is used to indicate at least one of the following: FEC application instructions; FEC protocol description information; FEC error correction rate information; FEC data packet location information; FEC data packet importance information; The indication information of the correspondence between the first information and the data stream.

37. The method according to any one of claims 32 to 36, wherein: The first information is received by the core network function node from an application device; and / or The first information is determined by the core network function node according to at least one of an operation, maintenance and management (OAM) configuration and a predetermined operation policy.

38. The method of claim 37, wherein: The first information is received by a policy control function PCF in the core network function node from an application function AF; and / or The first information is received by the user plane function UPF in the core network function node from the application server AS.

39. The method of claim 37, wherein: The first information is determined by the UPF in the core network function node according to at least one of the OAM configuration and the predetermined operation policy.

40. The method according to any one of claims 32 to 39, wherein: The receiving the first information sent by the core network function node includes at least one of the following: Receiving the first information sent by the UPF in the core network function node; Receive the first information sent by SMF in the core network function node through AMF.

41. The method of claim 40, wherein: The first information is carried in a PDU extension header associated with the PDU set.

42. The method according to any one of claims 32 to 41, wherein: The QoS characteristic parameter includes at least one of the following: PDU set delay budget PSDB; PDU set error rate PSER; PDU set integrated processing indication PSIHI.

43. The method according to any one of claims 32 to 42, wherein: The method further comprises: Receive FEC user plane parameters sent by the UPF in the core network function node.

44. The method of claim 43, wherein: The UPF sends the FEC user plane parameters to the access network device, including: A PDU extension header marked with the FEC user plane parameters is received.

45. The method according to any one of claims 32 to 44, wherein: The first information is used for determining the QoS characteristic parameter by at least one of the following: PCF in the core network function node; The SMF in the core network function node.

46. ​​A method for transmitting information, performed by a communication system, wherein: The method comprises: The core network function node obtains first information of the application device sent by the application device, wherein the first information is used to determine a quality of service QoS characteristic parameter associated with a protocol data unit PDU set in the data flow; The access network device receives the first information of the application device sent by the core network function node.

47. A core network function node, wherein: include: The transceiver module is configured to obtain first information of an application device, wherein the first information is used to determine a quality of service QoS characteristic parameter associated with a protocol data unit PDU set in a data stream.

48. An application device, wherein: include: The transceiver module is configured to send first information of the application device to the core network function node, wherein the first information is used to determine the quality of service QoS characteristic parameters associated with the protocol data unit PDU set in the data flow.

49. An access network device, wherein: include: The transceiver module is configured to receive first information of an application device sent by a core network function node, wherein the first information is used to determine a quality of service QoS characteristic parameter associated with a protocol data unit PDU set in a data stream.

50. A communication system, wherein: The communication system includes: core network function nodes, application equipment and access network equipment; wherein, The core network function node is configured to implement the information transmission method according to any one of claims 1 to 19; The application device is configured to implement the information transmission method described in any one of claims 20 to 31; The access network device is configured to implement the information transmission method according to any one of claims 32 to 45.

51. A communication device, wherein: The communication device comprises: one or more processors; The processor is used to call instructions so that the communication device executes the information transmission method described in any one of claims 1 to 19, claims 20 to 31, and claims 32 to 45.

52. A storage medium, wherein: The storage medium stores instructions, and when the instructions are executed on the communication device, the communication device executes the information transmission method according to any one of claims 1 to 19, claims 20 to 31, and claims 32 to 45.

Images