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

Abstract

Embodiments of the present disclosure relate to information transmission methods and apparatuses, communication devices and storage media. A policy control function (PCF) determines and sends an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission delay parameter of uplink transmission of the predetermined service data flow and a transmission delay parameter of downlink transmission.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication, and particularly relates to an information transmission method and device, a communication device and a storage medium. BACKGROUND

[0002] Mobile media services, cloud augmented reality (AR) / virtual reality (VR) extended reality (XR) services, cloud games, video-based machine or drone remote control services, and the like are expected to contribute to an increasing amount of traffic for 5G networks. XR services involve multi-modal data streams. Multi-modal data is data input from the same device or different devices (including sensors) that describes the same service / application, which can be output to one or more destination device terminals. Each data stream in multi-modal data often has certain or even strong correlation, such as synchronization of audio and video streams, synchronization of haptics and vision, and the like. SUMMARY

[0003] Therefore, the present disclosure provides an information transmission method and device, a communication device and a storage medium.

[0004] According to a first aspect of the present disclosure, an information transmission method is provided, which is applied to a policy control function (PCF), and includes the following steps.

[0005] determining and sending an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission delay parameter of uplink transmission of the predetermined service data stream and a transmission delay parameter of downlink transmission.

[0006] In one embodiment, the association identifier is sent by the PCF to a session management function (SMF), and is sent by the SMF to at least one of the following:

[0007] an access network device;

[0008] a user plane function (UPF).

[0009] In one embodiment, the association identifier is indicated by a policy control and charging (PCC) rule associated with the predetermined service.

[0010] In one embodiment, the method further includes the following steps.

[0011] receive a Quality of Service (QoS) delay monitoring report of the uplink transmission and a QoS delay monitoring report of the downlink transmission, wherein the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are associated with the association identifier;

[0012] update a Policy Control and Charging (PCC) rule of the uplink transmission of the predetermined service and / or a PCC rule of the downlink transmission of the predetermined service based on the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission.

[0013] In an embodiment, the updating the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service based on the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission comprises:

[0014] sending the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to an Application Function (AF) associated with the predetermined service;

[0015] receiving AF session update information sent by the AF in response to the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission;

[0016] updating the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service based on the AF session update information.

[0017] In an embodiment, the receiving the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission comprises at least one of:

[0018] receiving the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission sent by the UPF;

[0019] receiving the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission sent by the access network device through the UPF.

[0020] In an embodiment, the method further comprises:

[0021] The application function (AF) associated with the predetermined service receives an AF session update information sent by the AF in response to the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report; wherein the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are sent by the UPF to the AF.

[0022] Based on the AF session update information, the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service are updated.

[0023] In one embodiment, the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are sent by the UPF and / or the access network device in response to that the UPF and / or the access network device monitors the transmission delay parameter of the uplink transmission, determines that the monitored transmission delay parameter of the uplink transmission meets the uplink subscription event triggering condition, and determines the associated downlink transmission QoS delay monitoring report to be sent through the association identifier.

[0024] And / or

[0025] The uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are sent by the UPF and / or the access network device in response to that the UPF and / or the access network device monitors the transmission delay parameter of the downlink transmission, determines that the monitored transmission delay parameter of the downlink transmission meets the downlink subscription event triggering condition, and determines the associated uplink transmission QoS delay monitoring report to be sent through the association identifier.

[0026] In one embodiment, the updating of the PCC rule of the uplink transmission of the predetermined service comprises updating the packet unit delay budget (PDB) parameter and / or the packet unit set delay budget (PSDB) parameter in the PCC rule of the uplink transmission of the predetermined service.

[0027] The updating of the PCC rule of the downlink transmission of the predetermined service comprises updating the PDB parameter and / or the PSDB parameter in the PCC rule of the downlink transmission of the predetermined service.

[0028] In one embodiment, the determination of the association identifier of the predetermined service comprises:

[0029] The association identifier is determined based on at least one of the following:

[0030] The transmission delay parameter of the bidirectional transmission of the predetermined service data flow;

[0031] The subscription information associated with the predetermined service;

[0032] The operator policy associated with the predetermined service.

[0033] In an embodiment, the method further comprises: determining a transmission delay parameter of the data stream uplink transmission and / or a transmission delay parameter of the data stream downlink transmission based on a transmission delay parameter of the bidirectional transmission of the predetermined service data stream.

[0034] In an embodiment, the predetermined service comprises at least one of:

[0035] An augmented reality multimedia XRM service;

[0036] A multi-modal service.

[0037] According to a second aspect of the embodiments of the present disclosure, an information transmission method is provided, wherein the method is applied to an application function (AF) and comprises:

[0038] sending, to a policy control function (PCF), a transmission delay parameter of a bidirectional transmission of a predetermined service, wherein the transmission delay parameter of the bidirectional transmission is used for the PCF to determine an association identifier of the predetermined service, and wherein the transmission delay parameter of the bidirectional transmission is used for associating a transmission delay parameter of a data stream uplink transmission of the predetermined service and a transmission delay parameter of a data stream downlink transmission of the predetermined service.

[0039] In an embodiment, the association identifier is sent by the PCF to at least one of: an access network device; a user plane function (UPF) via a session management function (SMF).

[0040] In an embodiment, the association identifier is carried in a policy control and charging (PCC) rule associated with the predetermined service and sent by the PCF to the SMF.

[0041] In an embodiment, the method further comprises:

[0042] receiving a quality of service (QoS) delay monitoring report of the uplink transmission and a QoS delay monitoring report of the downlink transmission sent by a user plane function (UPF) or the PCF.

[0043] In an embodiment, the method further comprises:

[0044] determining whether to send an AF session update information to the PCF based on at least the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission.

[0045] In an embodiment, the AF session update information is used for the PCF to update a PCC rule of the data stream uplink transmission of the predetermined service and / or a PCC rule of the data stream downlink transmission of the predetermined service.

[0046] In an embodiment, the AF session update information is used for the PCF to update a packet unit delay budget (PDB) parameter and / or a packet unit set delay budget (PSDB) parameter in the PCC rule of the uplink transmission of the predetermined service, and / or to update a PDB parameter and / or a PSDB parameter in the PCC rule of the downlink transmission of the predetermined service.

[0047] In an embodiment, the receiving, by the UPF, the quality of service (QoS) delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission comprises: receiving, by the UPF, the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission sent by the NEF.

[0048] The receiving, by the PCF, the quality of service (QoS) delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission comprises: receiving, by the PCF, the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission sent by the NEF.

[0049] In an embodiment, the transmission delay parameter of the bidirectional transmission of the predetermined service data flow is used for the PCF to determine a transmission delay parameter of the data flow uplink transmission and / or a transmission delay parameter of the data flow downlink transmission.

[0050] In an embodiment, the sending, by the PCF, the transmission delay parameter of the bidirectional transmission of the predetermined service comprises at least one of:

[0051] sending, by the PCF, the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF through a network exposure function (NEF);

[0052] sending, by the PCF, the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF through a time sensitive communication time synchronization function (TSCTS);

[0053] sending, by the PCF, the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF through a NEF and a TSCTS.

[0054] According to a third aspect of embodiments of the present disclosure, an information transmission method is provided, which is applied to a user plane function (UPF) and comprises:

[0055] receiving an associated identifier of a predetermined service, wherein the associated identifier is used to associate a transmission delay parameter of a data flow uplink transmission and a transmission delay parameter of a data flow downlink transmission of the predetermined service.

[0056] In an embodiment, the association identifier is indicated by policy control and charging, PCC, rules for the predetermined service association sent by a policy control function, PCF, to a session management function, SMF.

[0057] In an embodiment, the method further comprises at least one of:

[0058] sending, to a PCF, the uplink transmission quality of service, QoS, latency monitoring report and the downlink transmission QoS latency monitoring report;

[0059] sending, to an AF for the predetermined service association, the uplink transmission QoS latency monitoring report and the downlink transmission QoS latency monitoring report;

[0060] wherein the uplink transmission QoS latency monitoring report and the downlink transmission QoS latency monitoring report are associated by the association identifier.

[0061] In an embodiment, the uplink transmission QoS latency monitoring report and the downlink transmission QoS latency monitoring report are monitored by the UPF and / or the access network device for a transmission latency parameter of the uplink transmission, and it is determined that the monitored transmission latency parameter of the uplink transmission satisfies a first uplink subscription event trigger condition, and the downlink transmission QoS latency monitoring report is determined to be sent by the association identifier.

[0062] and / or

[0063] the uplink transmission QoS latency monitoring report and the downlink transmission QoS latency monitoring report are monitored by the UPF and / or the access network device for a transmission latency parameter of the downlink transmission, and it is determined that the monitored transmission latency parameter of the downlink transmission satisfies a first downlink subscription event trigger condition, and the uplink transmission QoS latency monitoring report is determined to be sent by the association identifier.

[0064] According to a fourth aspect of embodiments of the present disclosure, an information transmission method is provided, wherein the method is applied to an access network device, and the method comprises:

[0065] receiving an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission latency parameter of an uplink transmission of a predetermined service data stream and a transmission latency parameter of a downlink transmission.

[0066] In an embodiment, the association identifier is indicated by policy control and charging, PCC, rules for the predetermined service association sent by a policy control function, PCF, to a session management function, SMF.

[0067] In an embodiment, the method further comprises:

[0068] sending, by the UPF, a quality of service (QoS) latency monitoring report of the uplink transmission and a QoS latency monitoring report of the downlink transmission to the PCF, wherein the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are associated with the association identifier.

[0069] In an embodiment, the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are used for the PCF to update a PCC rule of the uplink transmission of the predetermined service and / or a PCC rule of the downlink transmission of the predetermined service.

[0070] In an embodiment, the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are sent by the access network device monitoring a transmission latency parameter of the uplink transmission, determining that the monitored transmission latency parameter of the uplink transmission meets a second uplink subscription event triggering condition, and determining the QoS latency monitoring report of the downlink transmission associated with the association identifier to be sent.

[0071] and / or,

[0072] The QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are sent by the access network device monitoring a transmission latency parameter of the downlink transmission, determining that the monitored transmission latency parameter of the downlink transmission meets a second downlink subscription event triggering condition, and determining the QoS latency monitoring report of the uplink transmission associated with the association identifier to be sent.

[0073] In an embodiment, the updating the PCC rule of the uplink transmission of the predetermined service comprises updating a packet unit delay budget (PDB) parameter and / or a packet unit set delay budget (PSDB) parameter in the PCC rule of the uplink transmission of the predetermined service.

[0074] The updating the PCC rule of the downlink transmission of the predetermined service comprises updating a PDB parameter and / or a PSDB parameter in the PCC rule of the downlink transmission of the predetermined service.

[0075] According to a fifth aspect of embodiments of the present disclosure, an information transmission apparatus is provided, wherein the apparatus is arranged in a policy control function (PCF) and comprises:

[0076] a processing module configured to determine and send an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission latency parameter of an uplink transmission of the predetermined service data flow and a transmission latency parameter of a downlink transmission.

[0077] In an embodiment, the association identifier is sent by the PCF to a session management function (SMF), and sent by the SMF to at least one of:

[0078] an access network device;

[0079] a user plane function (UPF).

[0080] In an embodiment, the association identifier is indicated by a policy control and charging (PCC) rule associated with the predetermined service.

[0081] In an embodiment, the apparatus further comprises:

[0082] a transceiver configured to receive the uplink transmission quality of service (QoS) delay monitoring report and the downlink transmission QoS delay monitoring report, wherein the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are associated using the association identifier;

[0083] the processing module is further configured to update the PCC rule for the uplink transmission of the predetermined service and / or the PCC rule for the downlink transmission of the predetermined service based on the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report.

[0084] In an embodiment, the transceiver is further configured to send the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report to an AF associated with the predetermined service;

[0085] the transceiver is further configured to receive AF session update information sent by the AF in response to the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report;

[0086] the processing module is further configured to update the PCC rule for the uplink transmission of the predetermined service and / or the PCC rule for the downlink transmission of the predetermined service based on the AF session update information.

[0087] In an embodiment, the transceiver is specifically configured to at least one of:

[0088] receive the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report sent by a UPF;

[0089] receive the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report sent by an access network device through the UPF.

[0090] In an embodiment, the apparatus further comprises:

[0091] transmit the AF session update information sent by the application function (AF) in response to the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report of the predetermined service; wherein the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are sent by the UPF to the AF;

[0092] The processing module is further configured to update the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service based on the AF session update information.

[0093] In one embodiment, the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are that the UPF and / or the access network device monitors the transmission delay parameter of the uplink transmission, determines that the monitored transmission delay parameter of the uplink transmission meets the uplink subscription event triggering condition, and determines to send the associated downlink transmission QoS delay monitoring report through the association identifier.

[0094] And / or

[0095] The uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are that the UPF and / or the access network device monitors the transmission delay parameter of the downlink transmission, determines that the monitored transmission delay parameter of the downlink transmission meets the downlink subscription event triggering condition, and determines to send the associated uplink transmission QoS delay monitoring report through the association identifier.

[0096] In one embodiment, the updating of the PCC rule of the uplink transmission of the predetermined service comprises updating the packet unit delay budget (PDB) parameter and / or the packet unit set delay budget (PSDB) parameter in the PCC rule of the uplink transmission of the predetermined service.

[0097] The updating of the PCC rule of the downlink transmission of the predetermined service comprises updating the PDB parameter and / or the PSDB parameter in the PCC rule of the downlink transmission of the predetermined service.

[0098] In one embodiment, the determining of the association identifier of the predetermined service comprises:

[0099] determining the association identifier based on at least one of the following:

[0100] the transmission delay parameter of the bidirectional transmission of the predetermined service data flow;

[0101] the subscription information associated with the predetermined service;

[0102] the operator policy associated with the predetermined service.

[0103] In an embodiment, the processing module is further configured to:

[0104] determine the transmission delay parameter of the data flow uplink transmission and / or the transmission delay parameter of the data flow downlink transmission based on the transmission delay parameter of the bidirectional transmission of the predetermined service data flow.

[0105] In an embodiment, the predetermined service comprises at least one of:

[0106] an augmented reality multimedia XRM service;

[0107] a multi-modal service. According to a sixth aspect of the embodiments of the present disclosure, an information transmission apparatus is provided, which is arranged in an application function (AF) and comprises:

[0108] a transceiver configured to send a transmission delay parameter of bidirectional transmission of a predetermined service to a policy control function (PCF), wherein the transmission delay parameter of the bidirectional transmission is used by the PCF to determine an association identifier of the predetermined service, and wherein the transmission delay parameter of the bidirectional transmission is used to associate a transmission delay parameter of a data flow uplink transmission and a transmission delay parameter of a data flow downlink transmission of the predetermined service.

[0109] In an embodiment, the association identifier is sent by the PCF to at least one of: an access network device; a user plane function (UPF); and a session management function (SMF).

[0110] In an embodiment, the association identifier is carried in a policy control and charging (PCC) rule of the predetermined service sent by the PCF to the SMF.

[0111] In an embodiment, the transceiver is further configured to receive a quality of service (QoS) delay monitoring report of the uplink transmission and a QoS delay monitoring report of the downlink transmission sent by a user plane function (UPF) or the PCF.

[0112] In an embodiment, the apparatus further comprises a processing module configured to:

[0113] determine whether to send an AF session update information to the PCF based on at least one of the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission.

[0114] In an embodiment, the AF session update information is used by the PCF to update a PCC rule of the uplink transmission of the predetermined service and / or a PCC rule of the downlink transmission of the predetermined service.

[0115] In an embodiment, the AF session update information is used for the PCF to update a packet unit delay budget (PDB) parameter and / or a packet unit set delay budget (PSDB) parameter in the PCC rule of the uplink transmission of the predetermined service, and / or update a PDB parameter and / or a PSDB parameter in the PCC rule of the downlink transmission of the predetermined service.

[0116] In an embodiment, the transceiver module is specifically configured to receive a quality of service (QoS) delay monitoring report of the uplink transmission and a QoS delay monitoring report of the downlink transmission sent by the UPF through the NEF.

[0117] and / or

[0118] The transceiver module is specifically configured to receive a quality of service (QoS) delay monitoring report of the uplink transmission and a QoS delay monitoring report of the downlink transmission sent by the PCF through the NEF.

[0119] In an embodiment, the transmission delay parameter of the bidirectional transmission of the predetermined service data flow is used for the PCF to determine a transmission delay parameter of the data flow uplink transmission and / or a transmission delay parameter of the data flow downlink transmission.

[0120] In an embodiment, the transceiver module is specifically configured to at least one of the following:

[0121] send the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF through the NEF;

[0122] send the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF through the TSC / TSCF;

[0123] send the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF through the NEF via the TSC / TSCF.

[0124] According to a seventh aspect of embodiments of the present disclosure, an information transmission apparatus is provided, which is arranged in a user plane function (UPF) and includes:

[0125] a transceiver module configured to receive an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission delay parameter of an uplink transmission and a transmission delay parameter of a downlink transmission of a predetermined service data flow.

[0126] In an embodiment, the association identifier is indicated by a policy control and charging (PCC) rule of the predetermined service sent by a policy control function (PCF) to a session management function (SMF).

[0127] In an embodiment, the transceiver module is further configured to at least one of the following:

[0128] sending the uplink transmission quality of service (QoS) latency monitoring report and the downlink transmission QoS latency monitoring report to the PCF;

[0129] sending the uplink transmission QoS latency monitoring report and the downlink transmission QoS latency monitoring report to the AF associated with the predetermined service;

[0130] The uplink transmission QoS latency monitoring report and the downlink transmission QoS latency monitoring report are associated by using the association identifier.

[0131] In an embodiment, the uplink transmission QoS latency monitoring report and the downlink transmission QoS latency monitoring report are that the UPF and / or the access network device monitors a transmission latency parameter of the uplink transmission, and determines that the monitored transmission latency parameter of the uplink transmission meets a first uplink subscription event trigger condition, and determines the sending of the downlink transmission QoS latency monitoring report associated by using the association identifier.

[0132] and / or

[0133] The uplink transmission QoS latency monitoring report and the downlink transmission QoS latency monitoring report are that the UPF and / or the access network device monitors a transmission latency parameter of the downlink transmission, and determines that the monitored transmission latency parameter of the downlink transmission meets a first downlink subscription event trigger condition, and determines the sending of the uplink transmission QoS latency monitoring report associated by using the association identifier.

[0134] According to an eighth aspect of the embodiments of the present disclosure, an information transmission apparatus is provided, wherein the apparatus is arranged in an access network device, and comprises:

[0135] a transceiver configured to receive an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission latency parameter of an uplink transmission of a predetermined service data flow and a transmission latency parameter of a downlink transmission.

[0136] In an embodiment, the association identifier is indicated by a policy control and charging (PCC) rule of the predetermined service sent by a policy control function (PCF) to a session management function (SMF).

[0137] In an embodiment, the transceiver is further configured to:

[0138] send, by the UPF, the uplink transmission quality of service (QoS) latency monitoring report and the downlink transmission QoS latency monitoring report to the PCF, wherein the uplink transmission QoS latency monitoring report and the downlink transmission QoS latency monitoring report are associated by using the association identifier.

[0139] In an embodiment, the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are used for the PCF to update the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service.

[0140] In an embodiment, the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are sent by the access network device monitoring the transmission latency parameter of the uplink transmission, determining that the monitored transmission latency parameter of the uplink transmission meets a second uplink subscription event triggering condition, and determining the associated QoS latency monitoring report of the downlink transmission to be sent through the association identifier.

[0141] and / or,

[0142] The QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are sent by the access network device monitoring the transmission latency parameter of the downlink transmission, determining that the monitored transmission latency parameter of the downlink transmission meets a second downlink subscription event triggering condition, and determining the associated QoS latency monitoring report of the uplink transmission to be sent through the association identifier.

[0143] In an embodiment, the updating the PCC rule of the uplink transmission of the predetermined service comprises updating a packet unit delay budget PDB parameter and / or a packet unit set delay budget PSDB parameter in the PCC rule of the uplink transmission of the predetermined service.

[0144] The updating the PCC rule of the downlink transmission of the predetermined service comprises updating a PDB parameter and / or a PSDB parameter in the PCC rule of the downlink transmission of the predetermined service.

[0145] According to a ninth aspect of embodiments of the present disclosure, a communication device is provided, wherein the communication device comprises:

[0146] a processor;

[0147] a memory for storing executable instructions of the processor;

[0148] The processor is configured to implement the information transmission method of the first aspect, the second aspect, the third aspect, or the fourth aspect when the executable instructions are executed.

[0149] According to a tenth aspect of embodiments of the present disclosure, a computer storage medium is provided, wherein the computer storage medium stores a computer executable program, and the executable program is executed by a processor to implement the information transmission method of the first aspect, the second aspect, the third aspect, or the fourth aspect.

[0150] According to a first aspect of the embodiments of the present disclosure, a method for information transmission is provided. The method comprises: determining, by a policy control function (PCF), an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission delay parameter of uplink transmission of a data stream of the predetermined service and a transmission delay parameter of downlink transmission of the data stream of the predetermined service; and sending, by the PCF, the association identifier.

[0151] The embodiments of the present disclosure provide a method and apparatus for information transmission, a communication device and a storage medium. A PCF determines and sends an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission delay parameter of uplink transmission of a data stream of the predetermined service and a transmission delay parameter of downlink transmission of the data stream of the predetermined service. The association identifier is used to associate the transmission delay parameter of uplink transmission and the transmission delay parameter of downlink transmission. A core network element and / or an access network device can determine the transmission delay parameter of uplink transmission and the transmission delay parameter of downlink transmission based on the association identifier, perform a cooperative processing of the transmission delay parameter of uplink transmission and the transmission delay parameter of downlink transmission, improve the cooperative efficiency of the transmission delay parameter of uplink transmission and the transmission delay parameter of downlink transmission, and further meet the bidirectional transmission delay requirement of the predetermined service and improve the transmission success rate of the predetermined service.

[0152] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0153] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate the embodiments of the present disclosure and, together with the description, serve to explain the principles of the embodiments of the present disclosure.

[0154] Figure 1 is a structural schematic diagram of a wireless communication system according to an exemplary embodiment;

[0155] Figure 2 is a flowchart of a method for information transmission according to an exemplary embodiment;

[0156] Figure 3 is a flowchart of a method for information transmission according to an exemplary embodiment;

[0157] Figure 4 is a flowchart of a method for information transmission according to an exemplary embodiment;

[0158] Figure 5 is a flowchart of a method for information transmission according to an exemplary embodiment;

[0159] Figure 6 is a flowchart of a method for information transmission according to an exemplary embodiment;

[0160] Figure 7 is a flowchart of a method of information transmission according to an example embodiment;

[0161] Figure 8 is a flowchart of a method of information transmission according to an example embodiment;

[0162] Figure 9 is a flowchart of a method of information transmission according to an example embodiment;

[0163] Figure 10 is a flowchart of a method of information transmission according to an example embodiment;

[0164] Figure 11 is a flowchart of a method of information transmission according to an example embodiment;

[0165] Figure 12 is a flowchart of a method of information transmission according to an example embodiment;

[0166] Figure 13 is a flowchart of a method of information transmission according to an example embodiment;

[0167] Figure 14 is a flowchart of a method of information transmission according to an example embodiment;

[0168] Figure 15 is a flowchart of a method of information transmission according to an example embodiment;

[0169] Figure 16 is a flowchart of a method of information transmission according to an example embodiment;

[0170] Figure 17 is a flowchart of a method of information transmission according to an example embodiment;

[0171] Figure 18 is a flowchart of a method of information transmission according to an example embodiment;

[0172] Figure 19 is a flowchart of a method of information transmission according to an example embodiment;

[0173] Figure 20 is a flowchart of a method of information transmission according to an example embodiment;

[0174] Figure 21 is a flowchart of a method of information transmission according to an example embodiment;

[0175] Figure 22 is a schematic diagram of an information transmission structure according to an example embodiment;

[0176] Figure 23 is a schematic diagram of an information transmission structure according to an example embodiment;

[0177] Figure 24 is a schematic diagram of an information transmission structure according to an example embodiment;

[0178] Figure 25 is a block diagram of a UE according to an example embodiment;

[0179] Figure 26 is a block diagram of a base station according to an example embodiment. DETAILED DESCRIPTION

[0180] The example embodiments will now be described in detail with reference to the accompanying drawings. If the description of the example embodiments refers to accompanying drawings, then the description is illustrative of the example embodiments and does not limit the example embodiments. Unless otherwise defined, all terms (including technical and scientific terms) used in the description of the example embodiments are intended to have the same meaning as commonly understood by one of ordinary skill in the art to which the example embodiments belong. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an overly literal or overly formal sense unless expressly so defined herein.

[0181] The terminology used in the disclosure of the example embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the example embodiments. As used in the description of the example embodiments and the appended examples, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0182] It will be understood that, although the terms first, second, third, etc. can be used herein to describe various information, the information should not be limited by these terms. These terms are only used to distinguish one piece of information from another. For example, a first information can be termed a second information, and, similarly, a second information can be termed a first information, without departing from the scope of the example embodiments. The word "if' as used herein means "when" or "responsive to the determination" or "in response to the determination" or "upon the determination" or "when it is determined" or "upon it being determined" or "when considered to be determined" or "as considered in response to the determination".

[0183] Reference will now be made to Figure 1 which shows a schematic diagram of a structure of a wireless communication system provided by the example embodiments. As shown in Figure 1 , the wireless communication system is a communication system based on a cellular mobile communication technology, and the wireless communication system can include a plurality of terminals 11 and a plurality of base stations 12.

[0184] The terminal 11 can be a device that provides voice and / or data connectivity to a user. The terminal 11 can communicate with one or more core network function nodes via a Radio Access Network (RAN), and the terminal 11 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or so-called "cellular" phone), and a computer with an Internet of Things terminal, for example, which can be fixed, portable, pocket-sized, handheld, built-in a computer, or a vehicle-mounted device. For example, a Station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, or a user equipment (UE). Alternatively, the terminal 11 can also be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 can also be a vehicle-mounted device, for example, it can be a vehicle-mounted computer with wireless communication function, or a wireless communication device externally connected to the vehicle-mounted computer. Alternatively, the terminal 11 can also be a roadside device, for example, it can be a street lamp, a signal lamp, or other roadside devices with wireless communication function, etc.

[0185] The base station 12 can be an access network device in a wireless communication system. The wireless communication system can be a 4th generation mobile communication (4G) system, also known as a Long Term Evolution (LTE) system, or the wireless communication system can be a 5G system, also known as a new radio (NR) system or a 5G NR system. Alternatively, the wireless communication system can be a further next generation system of the 5G system. In the 5G system, the access network can be referred to as a New Generation-Radio Access Network (NG-RAN). Alternatively, the MTC system.

[0186] The base station 12 can be an evolved NodeB (eNB) in a 4G system. Alternatively, the base station 12 can be a base station (gNB) in a 5G system using a centralized and distributed architecture. When the base station 12 uses a centralized and distributed architecture, it generally includes a central unit (CU) and at least two distributed units (DUs). The central unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a media access control (MAC) layer; and the distributed unit is provided with a protocol stack of a physical (PHY) layer. The specific implementation of the base station 12 is not limited in the embodiments of the present disclosure.

[0187] The base station 12 and the terminal 11 can establish a wireless connection through a wireless air interface. In different embodiments, the wireless air interface is a wireless air interface based on a fourth generation mobile communication network technology (4G) standard; or the wireless air interface is a wireless air interface based on a fifth generation mobile communication network technology (5G) standard, such as a new radio (NR) air interface; or the wireless air interface can also be a wireless air interface based on a more next generation mobile communication network technology standard of 5G.

[0188] In some embodiments, the terminals 11 can also establish an E2E (End to End) connection. For example, V2V (vehicle to vehicle) communication, V2I (vehicle to infrastructure) communication, and V2P (vehicle to pedestrian) communication in vehicle to everything (V2X) communication, and the like.

[0189] In some embodiments, the wireless communication system can also include a network management device 13.

[0190] A plurality of base stations 12 are connected to a network management device 13. The network management device 13 can be a core network function node in the wireless communication system, for example, the network management device 13 can be a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Alternatively, the network management device can also be other core network function nodes, such as a Serving GateWay (SGW), a Public Data Network GateWay (PGW), a Policy and Charging Rules Function (PCRF), a Home Subscriber Server (HSS), an Access and Mobility Management Function (AMF), a Policy Control Function (PCF), a Unified Data Management (UDM), a User Plane Function (UPF), a Network Exposure Function (NEF), a Session Management Function (SMF), etc. The implementation form of the network management device 13 is not limited in the embodiments of the present disclosure.

[0191] For the convenience of those skilled in the art to understand, the embodiments of the present disclosure enumerate a plurality of embodiments to clearly explain the technical solutions of the embodiments of the present disclosure. Of course, those skilled in the art can understand that the plurality of embodiments provided by the embodiments of the present disclosure can be executed alone, or can be executed together with the method of other embodiments of the present disclosure, or can be executed alone or together with some methods in other related technologies; the embodiments of the present disclosure do not make any limitation in this regard.

[0192] There are some common features in the data flow of the XRM service itself, between the data flows, and the demand of the service data flow for network transmission, and the effective identification and utilization of these common features will be more helpful for the transmission, control of the network and the service, and also more helpful for the service guarantee and user experience.

[0193] Extended Reality Multi-Media (XRM) services require mobile communication systems (such as 5G mobile communication systems) to comprehensively consider the Quality of Service (QoS) characteristics of related data streams of the services, for example, whether the parameters such as the latency-critical guaranteed flow bit rate (GBR) data stream, guaranteed flow bit rate (GFBR), packet unit delay budget (PDU Delay Budget, PDB), default maximum data burst volume (Default Maximum Data Burst Volume, MDBV), and packet unit set delay budget (PDU Set Delay Budget, PSDB) can be simultaneously satisfied and coordinated. Among them, the consistency of the QoS authorization and execution of multiple XRM data streams involving one UE and multiple XRM data streams involving multiple UEs is guaranteed. Therefore, the uplink and downlink transmission coordination to meet the bidirectional latency requirement is a key problem to be studied.

[0194] The AF can provide the PDB as the latency requirement when requesting the QoS of the XRM service, or provide a bidirectional request indication as an indication of whether the bidirectional latency needs to be considered for the network authorization reference.

[0195] In actual service processes, the latency is dynamically and continuously changed by various factors in the network. Therefore, the real-time or quasi-real-time latency state of the network and the real-time latency requirement of the AF service will directly affect the QoS authorization of each data stream, so as to affect whether the 5GS XRM service function support can be successfully implemented. The related technologies do not have a perfect mechanism to combine the network latency state and the latency requirement to implement the QoS authorization, that is, there is no corresponding technical solution to support the PCF to reasonably authorize the QoS of the bidirectional latency requirement of the XRM service data stream.

[0196] Therefore, how to adjust the latency parameters of the XRM service data stream according to the latency state of the network to meet the transmission requirements of the XRM service is a problem to be solved.

[0197] As shown in Figure 2 The present exemplary embodiment provides an information transmission method, which can be executed by a PCF, comprising:

[0198] Step 201: determining and sending an associated identifier of a predetermined service, wherein the associated identifier is used to associate the transmission latency parameters of the uplink transmission and the transmission latency parameters of the downlink transmission of the predetermined service data stream.

[0199] In one embodiment, the predetermined service comprises at least one of the following:

[0200] An enhanced reality multimedia XRM service;

[0201] A multi-modal service.

[0202] The XRM service can include multiple data flows with synchronization requirements for transmitting information in various media forms such as text, sound and images.

[0203] The multi-modal service can include multiple data flows of different modalities with synchronization requirements.

[0204] In a possible implementation, the correlation identifier of the predetermined service is sent in a direct manner, including at least one of the following:

[0205] The correlation identifier of the predetermined service is sent in a direct manner.

[0206] The correlation identifier of the predetermined service is sent in an indirect manner.

[0207] In a possible implementation, the correlation identifier of the predetermined service is sent in a direct manner, including that the PCF directly sends the correlation identifier of the predetermined service to the SMF.

[0208] In a possible implementation, the correlation identifier of the predetermined service is sent in an indirect manner, including that the PCF sends the correlation identifier of the predetermined service to the UPF and / or the access network device through the SMF.

[0209] In a possible implementation, the predetermined service can have data flows of bidirectional transmission.

[0210] In a possible implementation, the correlation identifier can include any of the following: a correlation identifier (Correlation ID); a peer identifier (Peer ID); a round trip group identifier (Round Trip Group ID); a peer indication (Peer Indication); a common identifier (Common ID). The name of the correlation identifier is not limited herein.

[0211] In a possible implementation, the correlation identifier can be generated based on the common identifier, or the correlation identifier can be obtained based on mapping of the common identifier.

[0212] In a possible implementation, the correlation identifier is associated with a transmission delay parameter of uplink transmission of the data flow of the predetermined service; and the correlation identifier is associated with a transmission delay parameter of downlink transmission of the data flow of the predetermined service. That is, the core network function node or the access network device can determine the transmission delay parameter of the uplink transmission of the data flow of the predetermined service and the transmission delay parameter of the downlink transmission of the data flow of the predetermined service through the correlation identifier.

[0213] The transmission delay parameter can include, but is not limited to, a delay configuration parameter associated with data stream transmission.

[0214] The transmission delay parameter can include at least one of the following: a transmission delay; a PDB; a PSDB. The PDB and / or the PSDB can belong to a 5QI. The PSDB defines an upper limit of a transmission delay of a PDU set between the N6 termination points at the UE and the UPF.

[0215] In one possible implementation, the PCF can determine the transmission delay of the data stream uplink transmission and / or the transmission delay of the data stream uplink transmission based on the transmission delay parameter of the predetermined service data stream bidirectional transmission. The transmission delay parameter of the predetermined service data stream bidirectional transmission can be indicated by the AF associated with the predetermined service to the PCF.

[0216] In one possible implementation, the AF can send the transmission delay parameter of the predetermined service data stream bidirectional transmission to the PCF through the NEF.

[0217] In one possible implementation, the bidirectional transmission delay parameter can represent the maximum transmission delay allowed during the uplink transmission and the downlink transmission of the predetermined service data stream.

[0218] In one possible implementation, the sum of the transmission delay of the data stream uplink transmission and the transmission delay of the data stream uplink transmission is less than or equal to the transmission delay of the predetermined service data stream bidirectional transmission.

[0219] In one possible implementation, the association identifier is associated with at least one of the following:

[0220] The transmission delay parameter of the uplink service data stream of the predetermined service;

[0221] The transmission delay parameter of the downlink service data stream of the predetermined service;

[0222] The transmission delay parameter of the QoS flow of the predetermined service;

[0223] The PCC associated with the predetermined service;

[0224] The 5QI associated with the predetermined service.

[0225] In one possible implementation, the PCF can generate the association identifier based on a predetermined determination policy.

[0226] In one possible implementation, one association identifier can be associated with one predetermined service, or one association identifier can be associated with a type of predetermined service.

[0227] In one embodiment, determining the association identifier of the predetermined service comprises:

[0228] determine the association identifier based on at least one of the following:

[0229] a transmission delay parameter of the bidirectional transmission of the predetermined service data flow;

[0230] subscription information associated with the predetermined service;

[0231] an operator policy associated with the predetermined service.

[0232] In a possible implementation, the requirement of the predetermined service on the transmission delay parameter can include at least one of the following: a requirement of the predetermined service on the transmission delay parameter of the bidirectional transmission of the data flow; a requirement of the predetermined service on the transmission delay parameter of the uplink transmission of the data flow; and a requirement of the predetermined service on the transmission delay parameter of the downlink transmission of the data flow.

[0233] In a possible implementation, the PCF can determine a network supported bidirectional transmission delay rule or 5QI update of the predetermined service according to the transmission delay parameter of the bidirectional transmission of the predetermined service (i.e., the transmission delay parameter requirement), the subscription information, or the operator policy, and then generate the association identifier.

[0234] In a possible implementation, the association identifier can be determined based on one or more of the transmission delay parameter of the bidirectional transmission, the subscription information associated with the predetermined service, and the operator policy associated with the predetermined service.

[0235] For example, the association identifier can be allocated based on the operator policy. The operator policy contains an allocation rule of the association identifier.

[0236] In the prior art, the uplink transmission and the downlink transmission of the predetermined service data flow are independent of each other, and the transmission delay parameter of the uplink transmission and the transmission delay parameter of the uplink transmission are not associated with each other, so that the transmission delay parameter of the uplink transmission and the transmission delay parameter of the uplink transmission cannot be adjusted cooperatively.

[0237] The association identifier is used to associate the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission, and the core network element and / or the access network device can determine the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission based on the association identifier, perform cooperative processing on the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission, improve the cooperative efficiency of the transmission delay parameter of the uplink transmission and the transmission delay parameter of the uplink transmission, and thus meet the bidirectional transmission delay requirement of the predetermined service and improve the transmission success rate of the predetermined service.

[0238] In a possible implementation, the PCF receives the transmission delay parameter of the bidirectional transmission sent by the AF associated with the predetermined service.

[0239] The transmission delay parameter of the bidirectional transmission can be a delay requirement of the bidirectional transmission of the predetermined service.

[0240] The AF associated with the reservation service may include, but is not limited to, the AF that requests the reservation service.

[0241] For example, an AF associated with a pre-booked service could be an AF that requests pre-booked service session resources from a core network functional node.

[0242] In one possible implementation, the AF can send the latency requirement for bidirectional transmission of the pre-defined service data stream to the PCF during the process of requesting session resources.

[0243] The AF can provide the PCF with bidirectional transmission delay parameters so that the PCF can determine the uplink transmission delay parameters and / or the uplink transmission delay parameters.

[0244] The AF can send bidirectional transmission delay parameters to the PCF in at least one of the following procedures:

[0245] 1) During the AF session, the AF provides the PCF with bidirectional transmission latency requirements and the required QoS parameters.

[0246] 2) AF session flow with required QoS update procedures.

[0247] 3) Service specific parameter configuration process.

[0248] 4) The process of configuring policies for subsequent AF sessions.

[0249] The AF provides bidirectional latency requirement information to the PCF, either directly or indirectly; indirect transmission includes:

[0250] 1) Send to PCF via NEF.

[0251] 2) Sent to PCF via TSCTSF,

[0252] 3) Send to PCF via TSCTSF and NEF.

[0253] like Figure 3 As shown, this exemplary embodiment provides an information transmission method that can be executed by a PCF, including:

[0254] Step 301: Based on the transmission delay parameters of the bidirectional transmission of the predetermined service data stream, determine the transmission delay parameters of the uplink transmission of the data stream and / or the transmission delay parameters of the downlink transmission of the data stream.

[0255] Transmission delay parameters for bidirectional transmission, uplink transmission, and / or downlink transmission of data streams, such as... Figure 2The embodiments are described below, and will not be repeated here. The transmission delay parameter of the bidirectional transmission can represent the transmission delay of the bidirectional transmission. That is, the maximum transmission delay allowed by the data flow bidirectional transmission.

[0256] In a possible implementation, the PCF can divide the transmission delay parameter of the bidirectional transmission into the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission. And determine the PCC rule of the uplink transmission of the predetermined service data flow and the PCC rule of the downlink transmission of the predetermined service data flow based on the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission respectively.

[0257] In a possible implementation, the PCC rule of the uplink transmission and the PCC rule of the downlink transmission of the predetermined service data flow can be respectively associated with the quality of service monitoring (QoS monitoring) policy of the uplink transmission and the quality of service monitoring policy of the uplink transmission, for monitoring the uplink transmission delay and the downlink transmission delay by the UPF and the access network device and the like.

[0258] For example, the PCF can determine the PDB of the uplink transmission and the PDB of the downlink transmission according to the bidirectional transmission delay, and then generate the PCC rule of the SDF corresponding to the uplink transmission and the PCC rule of the SDF corresponding to the downlink transmission, and assign the corresponding 5QIs to the two PCC rules by considering the corresponding PDB. The above two PCC rules are respectively associated with the quality of service monitoring policy of the uplink transmission and the quality of service monitoring policy of the uplink transmission, and respectively monitor the uplink transmission delay and the downlink transmission delay.

[0259] In an embodiment, the association identifier is sent by the PCF to a session management function (SMF), and is sent by the SMF to at least one of the following:

[0260] An access network device;

[0261] A user plane function (UPF).

[0262] The access network device and / or the UPF can be used to monitor the transmission delay parameter of the uplink transmission and / or the transmission delay parameter of the downlink transmission of the data flow, and report to the core network element. The SMF can send the association identifier to the access network device and / or the UPF.

[0263] When the access network device and / or the UPF monitor the transmission delay parameter, the association identifier can be used to associate the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission.

[0264] In an embodiment, the association identifier is indicated by a policy control and charging (PCC) rule associated with the predetermined service.

[0265] In a possible implementation, the association identifier can be carried in the PCC rule.

[0266] In a possible implementation, the PCC rule can carry index information of the association identifier, and the index information is used to search the corresponding association identifier in an index table of the association identifier.

[0267] In a possible implementation, the PCC rule includes at least one of the following: an uplink transmission PCC rule; and a downlink transmission PCC rule.

[0268] For example, when the PCF sends the PCC rule to the SMF, the PCF can simultaneously send the association identifier of the transmission delay parameter of the associated uplink transmission and / or the transmission delay parameter of the associated downlink transmission; and the SMF can send the association identifier to the RAN and the UPF.

[0269] In a possible implementation, the PCF can send the association identifier in the PCC rule to the SMF, and the SMF can send the association identifier to the access network device and / or the UPF.

[0270] In a possible implementation, the PCF can add a field to carry the association identifier in the PCC rule.

[0271] In a possible implementation, the PCF can carry the association identifier in an existing field in the PCC rule, such as a service data flow template or a 5G QoS identifier.

[0272] In a possible implementation, the PCF can send the association identifier to the SMF separately, and the SMF can send the association identifier to the access network device and / or the UPF.

[0273] As shown in FIG. 8, the example embodiment provides an information transmission method, which can be executed by the PCF, and includes the following steps. Figure 4

[0274] Step 401: receiving a QoS delay monitoring report of uplink transmission and a QoS delay monitoring report of downlink transmission, wherein the QoS delay monitoring report of uplink transmission and the QoS delay monitoring report of downlink transmission are associated by using an association identifier.

[0275] Step 402: updating a PCC rule of uplink transmission of a predetermined service and / or a PCC rule of downlink transmission of the predetermined service based on the QoS delay monitoring report of uplink transmission and the QoS delay monitoring report of downlink transmission.

[0276] In a possible implementation, the PCF can receive a QoS delay monitoring report of uplink transmission and a QoS delay monitoring report of downlink transmission sent by the UPF and / or the access network device.

[0277] In a possible implementation, the association identifier is determined by the PCF.

[0278] ​After the PCF updates the PCC rule, the PCF can indicate the association identifier through the updated PCC rule. The manner in which the updated PCC rule indicates the association identifier can be similar to the manner in which the PCC rule indicates the association identifier in the embodiment shown in FIG. 8, and thus will not be described again here. Figure 3

[0279] In one possible implementation, the UPF and / or the access network device can send the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report to the PCF in a direct sending manner or an indirect sending manner.

[0280] The UPF and / or the access network device can monitor the uplink transmission delay parameter and / or the downlink transmission delay parameter, and send the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report to the PCF. The PCF adjusts the uplink transmission PCC rule and / or the downlink transmission PCC rule based on the received QoS delay monitoring report, so that the transmission of the data flow can adapt to the current network status.

[0281] In one possible implementation, the uplink transmission QoS delay monitoring report can be used to indicate the current uplink transmission delay parameter; and the downlink transmission QoS delay monitoring report can be used to indicate the current downlink transmission delay parameter.

[0282] In one possible implementation, updating the PCC rule of the predetermined uplink transmission and / or the PCC rule of the predetermined downlink transmission comprises at least one of the following:

[0283] adjusting the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission;

[0284] creating a new PCC rule of the uplink transmission and / or a new PCC rule of the downlink transmission.

[0285] For example, the PCF can update the PCC rule of the predetermined uplink transmission and / or the PCC rule of the predetermined downlink transmission, so that the sum of the uplink transmission delay of the data flow and the uplink transmission delay of the data flow is less than or equal to the delay requirement of the bidirectional transmission of the data flow.

[0286] In one embodiment, updating the PCC rule of the predetermined uplink transmission comprises updating a packet unit delay budget (PDB) parameter and / or a packet unit set delay budget (PSDB) parameter in the PCC rule of the predetermined uplink transmission.

[0287] Updating the PCC rule of the predetermined downlink transmission comprises updating a PDB parameter and / or a PSDB parameter in the PCC rule of the predetermined downlink transmission. ​

[0288] In a possible implementation, the PCF can adjust the PDB parameter and / or the PSDB parameter of the uplink transmission and / or adjust the PDB parameter and / or the PSDB parameter of the downlink transmission based on the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission.

[0289] In a possible implementation, updating the PCC rule of the uplink transmission of the predetermined service comprises: updating the 5QI in the PCC rule of the uplink transmission of the predetermined service.

[0290] In a possible implementation, updating the PCC rule of the downlink transmission of the predetermined service comprises: updating the 5QI in the PCC rule of the downlink transmission of the predetermined service.

[0291] For example, the PCF can authorize a new PDB parameter of the uplink transmission and / or a new PDB parameter of the downlink transmission (for example, a new 5QI corresponding to the PDB PDB can be selected) based on the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission.

[0292] In an embodiment, receiving the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission comprises at least one of:

[0293] Receiving the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission sent by the UPF;

[0294] Receiving the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission sent by the access network device through the UPF.

[0295] In a possible implementation, the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission can be sent from the UPF to the PCF through a control plane procedure from the UPF to the SMF to the PCF.

[0296] In a possible implementation, the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission can be reported to the PCF by the access network device through the UPF.

[0297] In a possible implementation, the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission received from the UPF can be sent to the PCF by the UPF after monitoring, or can be sent to the PCF by the access network device after monitoring through the UPF.

[0298] In an embodiment, the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are sent by the UPF and / or the access network device to the PCF and / or the AF, when the UPF and / or the access network device monitors the transmission latency parameter of the uplink transmission, determines that the monitored transmission latency parameter of the uplink transmission satisfies the uplink subscription event trigger condition, and determines the associated QoS latency monitoring report of the downlink transmission to be sent according to the association identifier.

[0299] and / or

[0300] The QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are sent by the UPF and / or the access network device to the PCF and / or the AF, when the UPF and / or the access network device monitors the transmission latency parameter of the downlink transmission, determines that the monitored transmission latency parameter of the downlink transmission satisfies the downlink subscription event trigger condition, and determines the associated QoS latency monitoring report of the uplink transmission to be sent according to the association identifier.

[0301] For example, the UPF monitors that the transmission latency parameter of the uplink transmission satisfies the uplink subscription event (Subscribe event) trigger condition, and sends the latency monitoring report to the PCF and / or the AF. The UPF can carry the monitored transmission latency parameter of the uplink transmission in the QoS latency monitoring report of the uplink transmission. The UPF can also determine the QoS latency monitoring report of the downlink transmission corresponding to the association identifier according to the association identifier of the QoS latency monitoring report of the uplink transmission. The UPF can send the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission to the PCF and / or the AF, so as to trigger the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, the PCF triggers to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0302] For example, the UPF monitors that the transmission latency parameter of the downlink transmission satisfies the downlink subscription event (Subscribe event) trigger condition, and sends the latency monitoring report to the PCF and / or the AF. The UPF can carry the monitored transmission latency parameter of the downlink transmission in the QoS latency monitoring report of the downlink transmission. The UPF can also determine the QoS latency monitoring report of the uplink transmission corresponding to the association identifier according to the association identifier of the QoS latency monitoring report of the downlink transmission. The UPF can send the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission to the PCF and / or the AF, so as to trigger the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, the PCF triggers to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0303] Exemplarily, the access network device monitors that the transmission delay parameter of the uplink transmission meets the uplink subscription event trigger condition, and can send the delay monitoring report to the PCF. The UPF can carry the monitored transmission delay parameter of the uplink transmission in the QoS delay monitoring report of the uplink transmission. The UPF can also determine the QoS delay monitoring report of the downlink transmission corresponding to the associated identifier according to the associated identifier of the QoS delay monitoring report of the uplink transmission. The UPF can send the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the PCF and / or the AF, thereby triggering the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, triggering the PCF to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0304] Exemplarily, the access network device monitors that the transmission delay parameter of the downlink transmission meets the downlink subscription event trigger condition, and can send the delay monitoring report to the PCF. The UPF can carry the monitored transmission delay parameter of the downlink transmission in the QoS delay monitoring report of the downlink transmission. The UPF can also determine the QoS delay monitoring report of the uplink transmission corresponding to the associated identifier according to the associated identifier of the QoS delay monitoring report of the downlink transmission. The UPF can send the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the PCF and / or the AF, thereby triggering the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, triggering the PCF to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0305] In one possible implementation, the uplink subscription event adopted by the UPF and the uplink subscription event adopted by the access network device can be the same or different, which is not limited herein.

[0306] In one possible implementation, the downlink subscription event adopted by the UPF and the downlink subscription event adopted by the access network device can be the same or different, which is not limited herein.

[0307] In one embodiment, based on the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission, the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service are updated, comprising:

[0308] sending the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the AF associated with the predetermined service;

[0309] receiving the AF session update information sent by the AF in response to the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission.

[0310] The PCF updates the PCC rule for the uplink transmission and / or the PCC rule for the downlink transmission of the predetermined service based on the AF session update information.

[0311] Here, the PCF does not directly determine whether to update the PCC rule for the uplink transmission and / or the PCC rule for the downlink transmission.

[0312] The PCF can send the received QoS latency monitoring report for the uplink transmission and the QoS latency monitoring report for the downlink transmission to the AF.

[0313] Here, the PCF sending the QoS latency monitoring report for the uplink transmission and the QoS latency monitoring report for the downlink transmission can be that the PCF directly sends to the AF, or that the PCF sends to the AF through the NEF.

[0314] After the AF receives the QoS latency monitoring report for the uplink transmission and the QoS latency monitoring report for the downlink transmission, the AF can determine whether to send the AF session update information for the PCF to update the PCC rule for the uplink transmission and / or the PCC rule for the downlink transmission.

[0315] In one possible implementation, the AF session update information includes a transmission latency parameter for bidirectional transmission of the predetermined service data flow.

[0316] In one possible implementation, the QoS latency monitoring report for the uplink transmission and the QoS latency monitoring report for the downlink transmission are used to trigger modification of the AF session associated with the predetermined service, thereby triggering update of the PCC rule.

[0317] For example, the AF can determine whether to need to provide the transmission latency parameter for bidirectional transmission to the PCF based on the QoS latency monitoring report for the uplink transmission and the QoS latency monitoring report for the downlink transmission, so that the PCF updates the PCC rule for the uplink transmission and / or the PCC rule for the downlink transmission of the service.

[0318] The PCF can update the PCC rule for the uplink transmission and / or the PCC rule for the downlink transmission of the service according to the AF session update information.

[0319] The AF can provide the AF session update information to the PCF, so that the PCF determines the PCC rule for the uplink transmission and / or the PCC rule for the downlink transmission, i.e., updates the transmission latency parameter for the uplink transmission and / or the transmission latency parameter for the downlink transmission.

[0320] The AF can send the AF session update information to the PCF in at least one of the following processes:

[0321] 1) During the AF session, the AF provides the PCF with bidirectional transmission latency requirements and the required QoS parameters.

[0322] 2) AF session flow with required QoS update procedures.

[0323] 3) Service specific parameter configuration process.

[0324] 4) The process of configuring policies for subsequent AF sessions.

[0325] The AF provides bidirectional latency requirement information to the PCF, either directly or indirectly; indirect transmission includes:

[0326] 1) Send to PCF via NEF.

[0327] 2) Sent to PCF via TSCTSF,

[0328] 3) Send to PCF via TSCTSF and NEF.

[0329] Combination Figure 2 He Ru Figure 4 Examples, such as Figure 5 As shown, this exemplary embodiment provides an information transmission method that can be executed by a PCF, including:

[0330] Step 501: Determine and send the association identifier of the pre-ordered service, wherein the association identifier is used to associate the transmission delay parameters of the uplink transmission and the downlink transmission of the pre-ordered service data stream.

[0331] Step 502: Receive the uplink QoS latency monitoring report and the downlink QoS latency monitoring report, wherein the uplink QoS latency monitoring report and the downlink QoS latency monitoring report are associated using an association identifier;

[0332] Step 503: Based on the QoS latency monitoring reports of uplink and downlink transmissions, update the PCC rules for uplink transmission and / or the PCC rules for downlink transmission of the scheduled service.

[0333] Figure 5 Implementation examples, including Figure 2 Examples and Figure 4 The content of the embodiments. Therefore, the same explanations or features will not be repeated one by one, and can be referred to the embodiments on the corresponding side.

[0334] like Figure 6 As shown, this exemplary embodiment provides an information transmission method that can be executed by a PCF, including:

[0335] Step 601: receiving, by the AF associated with the predetermined service, the AF session update information sent by the AF in response to the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report; wherein the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are sent by the UPF to the AF.

[0336] Step 602: updating, by the AF, the PCC rule for the uplink transmission of the predetermined service and / or the PCC rule for the downlink transmission of the predetermined service based on the AF session update information.

[0337] The uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are as shown in the embodiments described above, and will not be described here again. In one possible implementation, the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report sent by the UPF to the AF can be monitored by the UPF and sent to the AF, or monitored by the access network device and sent to the AF through the UPF. Figure 4 The uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are as shown in the embodiments described above, and will not be described here again. In one possible implementation, the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report sent by the UPF to the AF can be monitored by the UPF and sent to the AF, or monitored by the access network device and sent to the AF through the UPF.

[0338] Here, the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report can be sent from the UPF to the AF through the user plane notification process from the UPF to the AF.

[0339] Here, the UPF can send the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report to the AF.

[0340] The manner in which the UPF and / or the access network device determines to report the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report is as described above, and will not be described here again.

[0341] In one possible implementation, the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are used to trigger modification of the AF session associated with the predetermined service, and further trigger updating of the PCC rule.

[0342] After receiving the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report, the AF can determine whether to send the AF session update information to trigger the PCF to update the PCC rule for the uplink transmission and / or the PCC rule for the downlink transmission.

[0343] In one possible implementation, the AF session update information includes one of the following:

[0344] a transmission delay parameter of bidirectional transmission of the predetermined service data flow;

[0345] the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report.

[0346] For example, the AF can determine whether to provide the transmission delay parameter of the bidirectional transmission to the PCF based on the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission, so that the PCF updates the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the service.

[0347] The PCF can update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the service according to the AF session update information.

[0348] The AF sends the AF session update information to the PCF in a manner similar to the above, which will not be repeated here.

[0349] The order of the steps listed in the above PCF side information transmission method embodiment is not used to limit the execution order of each step, and each step can be executed in the order listed in each step, or can be executed in a manner that does not contradict the order listed in each step. Each step can be implemented as a separate embodiment, or multiple steps can be combined together as an embodiment.

[0350] In combination with Figure 2 and the embodiments of Figure 6 , as shown in Figure 7 , the present exemplary embodiment provides an information transmission method, which can be executed by the PCF, comprising:

[0351] Step 701: determining and sending the associated identifier of the predetermined service, wherein the associated identifier is used to associate the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission of the predetermined service data stream.

[0352] Step 702: receiving the AF session update information sent by the AF associated with the predetermined service in response to the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission; wherein the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are sent by the UPF to the AF.

[0353] Step 703: updating the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service based on the AF session update information.

[0354] Figure 7 Embodiments, including Figure 2 the contents of the embodiments and Figure 6 the contents of the embodiments. Therefore, the same explanations or features will not be repeated one by one, and can refer to the corresponding side embodiments.

[0355] In each embodiment, the information transmission method executed by the PCF side, the UPF side, the AF side and the access network side can be one-to-one corresponding, so the same explanations or features will not be repeated one by one, and can refer to the corresponding side embodiments.

[0356] As Figure 8 shown, the present exemplary embodiment provides an information transmission method, which can be executed by an AF, comprising:

[0357] Step 801: sending a transmission delay parameter of a bidirectional transmission of a predetermined service to a PCF, wherein the transmission delay parameter of the bidirectional transmission is used for the PCF to determine a correlation identifier of the predetermined service, wherein the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission of the data flow of the predetermined service are associated with the correlation identifier.

[0358] The predetermined service includes but is not limited to an XRM service.

[0359] In a possible implementation, the predetermined service can have a data flow of bidirectional transmission.

[0360] In a possible implementation, the correlation identifier can include any one of the following: a correlation identifier (Correlation ID); a peer identifier (Peer ID); a bidirectional transmission group identifier (Round Trip Group ID); a peer indication (Peer Indication); a common identifier (Common ID). The name of the correlation identifier is not limited herein.

[0361] In a possible implementation, the correlation identifier can be generated based on the common identifier, or the correlation identifier can be obtained based on the mapping of the common identifier.

[0362] In a possible implementation, the correlation identifier is associated with the transmission delay parameter of the uplink transmission of the data flow of the predetermined service; and the correlation identifier is associated with the transmission delay parameter of the downlink transmission of the data flow of the predetermined service. That is, the core network function node or the access network device can determine the transmission delay parameter of the uplink transmission of the data flow of the predetermined service and the transmission delay parameter of the downlink transmission of the data flow of the predetermined service through the correlation identifier.

[0363] The transmission delay parameter can include but is not limited to a delay configuration parameter associated with the transmission of the data flow.

[0364] The transmission delay parameter can include at least one of the following: a transmission delay; a PDB; a PSDB. The PDB and / or the PSDB can belong to 5QI. The PSDB defines an upper limit of the transmission delay of the PDU set between the N6 termination point at the UE and the UPF.

[0365] In a possible implementation, the PCF can determine the transmission delay of the uplink transmission and / or the transmission delay of the downlink transmission of the data flow based on the transmission delay parameter of the bidirectional transmission of the data flow of the predetermined service. The transmission delay parameter of the bidirectional transmission of the data flow of the predetermined service can be indicated by the AF associated with the predetermined service to the PCF.

[0366] In a possible implementation, the PCF receives the transmission delay parameter of the bidirectional transmission sent by the AF associated with the predetermined service.

[0367] The transmission delay parameter of the bidirectional transmission can be a delay requirement of the bidirectional transmission of the predetermined service.

[0368] The AF can include, but is not limited to, an AF requesting the predetermined service.

[0369] For example, the AF can be an AF requesting a predetermined service session resource from a core network function node.

[0370] In a possible implementation, the AF can send the delay requirement of the bidirectional transmission of the predetermined service data flow to the PCF in the process of requesting the session resource.

[0371] The AF can provide the transmission delay parameter of the bidirectional transmission to the PCF for the PCF to determine the transmission delay parameter of the uplink transmission and / or the transmission delay parameter of the uplink transmission.

[0372] The AF can send the transmission delay parameter of the bidirectional transmission to the PCF in at least one of the following processes:

[0373] 1) The AF provides the bidirectional transmission delay requirement to the PCF during the AF session, and provides the required QoS parameter.

[0374] 2) AF session process with QoS requirement update procedure.

[0375] 3) Service specific parameter configuration process.

[0376] 4) Process for configuring policy for subsequent AF session.

[0377] The AF provides the bidirectional delay requirement information to the PCF, which can be sent directly to the AF or indirectly to the AF; wherein the indirect sending includes:

[0378] 1) sent to the PCF through the NEF,

[0379] 2) sent to the PCF through the TSCTSF,

[0380] 3) sent to the PCF through the TSCTSF and the NEF.

[0381] In a possible implementation, the AF can send the transmission delay parameter of the bidirectional transmission of the predetermined service data flow to the PCF through the NEF.

[0382] In a possible implementation, the bidirectional transmission delay parameter can represent the maximum transmission delay allowed in the uplink transmission and the downlink transmission of the predetermined service data flow.

[0383] In a possible implementation, the sum of the transmission delay of the data stream uplink transmission and the transmission delay of the data stream uplink transmission is less than or equal to the transmission delay of the predetermined service data stream bidirectional transmission.

[0384] In a possible implementation, the association identifier is associated with at least one of the following:

[0385] The transmission delay parameter of the uplink service data stream of the predetermined service;

[0386] The transmission delay parameter of the downlink service data stream of the predetermined service;

[0387] The transmission delay parameter of the QoS flow of the predetermined service;

[0388] The PCC associated with the predetermined service;

[0389] The 5QI associated with the predetermined service.

[0390] In a possible implementation, the PCF can generate the association identifier based on a predetermined determination policy.

[0391] In a possible implementation, one association identifier can be associated with one predetermined service, or one association identifier can be associated with a type of predetermined service.

[0392] In an embodiment, the association identifier of the predetermined service is determined, including:

[0393] The association identifier is determined based on at least one of the following:

[0394] The transmission delay parameter of the bidirectional transmission of the predetermined service data stream;

[0395] The subscription information associated with the predetermined service;

[0396] The operator policy associated with the predetermined service.

[0397] In a possible implementation, the requirement of the predetermined service for the transmission delay parameter can include at least one of the following: the requirement of the predetermined service for the transmission delay parameter of the data stream bidirectional transmission; the requirement of the predetermined service for the transmission delay parameter of the data stream uplink transmission; the requirement of the predetermined service for the transmission delay parameter of the data stream downlink transmission.

[0398] In a possible implementation, the PCF can determine the network to support the bidirectional transmission delay rule or 5QI update of the predetermined service according to the transmission delay parameter (i.e. the transmission delay parameter requirement) of the bidirectional transmission of the predetermined service, the subscription information or the operator policy, and then generate the association identifier.

[0399] In a possible implementation, the association identifier can be determined based on one or more of a transmission delay parameter of the bidirectional transmission, subscription information of the predetermined service association, and an operator policy of the predetermined service association.

[0400] For example, the association identifier can be assigned based on an operator policy. The operator policy contains the assignment rule of the association identifier.

[0401] In the prior art, the uplink transmission and the downlink transmission of the predetermined service data flow are independent of each other, and the transmission delay parameter of the uplink transmission and the transmission delay parameter of the uplink transmission are not associated with each other, so that the transmission delay parameter of the uplink transmission and the transmission delay parameter of the uplink transmission cannot be adjusted cooperatively.

[0402] The association identifier is used to associate the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission, and the core network element and / or the access network device can determine the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission based on the association identifier, perform cooperative processing of the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission, improve the cooperative efficiency of the transmission delay parameter of the uplink transmission and the transmission delay parameter of the uplink transmission, and thus meet the bidirectional transmission delay requirement of the predetermined service and improve the transmission success rate of the predetermined service.

[0403] In an embodiment, the transmission delay parameter of the bidirectional transmission of the predetermined service data flow is used for the PCF to determine the transmission delay parameter of the uplink transmission of the data flow and / or the transmission delay parameter of the downlink transmission of the data flow.

[0404] The transmission delay parameter of the bidirectional transmission can represent the transmission delay of the bidirectional transmission. That is, the maximum transmission delay allowed by the bidirectional transmission of the data flow.

[0405] In a possible implementation, the PCF can divide the transmission delay parameter of the bidirectional transmission into the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission, and determine the PCC rule of the uplink transmission of the predetermined service data flow and the PCC rule of the downlink transmission of the predetermined service data flow based on the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission, respectively.

[0406] In a possible implementation, the PCC rule of the uplink transmission and the PCC rule of the downlink transmission of the predetermined service data flow can be associated with the quality of service monitoring (QoS monitoring) policy of the uplink transmission and the quality of service monitoring policy of the downlink transmission, respectively, for the UPF and the access network device to monitor the uplink transmission delay and the downlink transmission delay.

[0407] Exemplarily, the PCF can determine the PDB of the uplink transmission and the PDB of the downlink transmission according to the bidirectional transmission delay, and then generate the PCC rule of the SDF corresponding to the uplink transmission and the PCC rule of the SDF corresponding to the downlink transmission, and assign the corresponding 5QIs to the two PCC rules by taking the corresponding PDBs as the criteria. The two PCC rules are respectively associated with the service quality monitoring strategy of the uplink transmission and the service quality monitoring strategy of the downlink transmission, and respectively monitor the delay of the uplink transmission and the delay of the downlink transmission.

[0408] In an embodiment, the association identifier is sent by the PCF to at least one of: an access network device; a user plane function, UPF, via a session management function, SMF.

[0409] In a possible implementation, the association identifier of the predetermined service is sent in at least one of:

[0410] The association identifier of the predetermined service is sent in a direct manner.

[0411] The association identifier of the predetermined service is sent in an indirect manner.

[0412] In a possible implementation, the association identifier of the predetermined service is sent in a direct manner, including: the PCF directly sending the association identifier of the predetermined service to the SMF.

[0413] In a possible implementation, the association identifier of the predetermined service is sent in an indirect manner, including: the PCF sending the association identifier of the predetermined service to the UPF and / or the access network device via the SMF.

[0414] In an embodiment, the association identifier is carried in a policy control and charging, PCC, rule of the predetermined service associated with the PCF sent to the SMF.

[0415] In a possible implementation, the association identifier can be carried in the PCC rule.

[0416] In a possible implementation, the PCC rule can carry index information of the association identifier, and the index information is used to search for the corresponding association identifier in an index table of the association identifier.

[0417] In a possible implementation, the PCC rule includes at least one of: an uplink transmission PCC rule; a downlink transmission PCC rule.

[0418] Exemplarily, when the PCF sends the PCC rule to the SMF, the association identifier of the transmission delay parameter of the uplink transmission and / or the transmission delay parameter of the downlink transmission can be simultaneously issued; and the SMF can issue the association identifier to the RAN and the UPF.

[0419] In a possible implementation, the PCF can send the association identifier to the SMF in a PCC rule, and the SMF extracts the association identifier and sends it to the access network device and / or the UPF.

[0420] In a possible implementation, the PCF can add a field to carry the association identifier in the PCC rule.

[0421] In a possible implementation, the PCF can carry the association identifier in an existing field in the PCC rule, such as a service data flow template or a 5G QoS identifier.

[0422] In a possible implementation, the PCF can send the association identifier to the SMF separately, and the SMF sends it to the access network device and / or the UPF.

[0423] As shown in Figure 9 The present example embodiment provides an information transmission method, which can be executed by an AF, and includes the following steps.

[0424] Step 901: receiving uplink transmission QoS delay monitoring reports and downlink transmission QoS delay monitoring reports sent by a UPF or a PCF.

[0425] In a possible implementation, the uplink transmission QoS delay monitoring reports and the downlink transmission QoS delay monitoring reports are associated by using an association identifier.

[0426] In an embodiment, the receiving of the uplink transmission service quality QoS delay monitoring reports and the downlink transmission QoS delay monitoring reports sent by the UPF includes: receiving the uplink transmission service quality QoS delay monitoring reports and the downlink transmission QoS delay monitoring reports sent by the UPF through a NEF.

[0427] The receiving of the uplink transmission service quality QoS delay monitoring reports and the downlink transmission QoS delay monitoring reports sent by the PCF includes: receiving the uplink transmission service quality QoS delay monitoring reports and the downlink transmission QoS delay monitoring reports sent by the PCF through a NEF.

[0428] Here, the uplink transmission QoS delay monitoring reports and the downlink transmission QoS delay monitoring reports received by the AF from the UPF can be sent directly by the UPF to the AF, or sent by the UPF to the AF through a NEF.

[0429] Here, the uplink transmission QoS delay monitoring reports and the downlink transmission QoS delay monitoring reports received by the AF from the PCF can be sent directly by the PCF to the AF, or sent by the PCF to the AF through a NEF.

[0430] In combination with Figure 8 andFigure 9 As shown in Figure 10 The present example embodiment provides an information transmission method, which can be executed by an AF, comprising:

[0431] Step 1001: sending, to a PCF, a transmission delay parameter of a bidirectional transmission of a predetermined service, wherein the transmission delay parameter of the bidirectional transmission is used for the PCF to determine an association identifier of the predetermined service, and wherein the transmission delay parameter is used for associating an uplink transmission and a downlink transmission of a data stream of the predetermined service.

[0432] Step 1002: receiving an uplink transmission QoS delay monitoring report and a downlink transmission QoS delay monitoring report sent by a UPF or the PCF.

[0433] Figure 10 Embodiments, including Figure 8 Embodiments and Figure 9 Embodiments. Therefore, the same explanations or features are not repeated here, and can be referred to the corresponding embodiments.

[0434] As shown in Figure 11 The present example embodiment provides an information transmission method, which can be executed by an AF, comprising:

[0435] Step 1101: determining whether to send, to a PCF, AF session update information based on at least an uplink transmission QoS delay monitoring report and a downlink transmission QoS delay monitoring report.

[0436] In one embodiment, the AF session update information is used for the PCF to update a PCC rule of an uplink transmission of a predetermined service and / or a PCC rule of a downlink transmission of the predetermined service.

[0437] In one possible implementation, the AF session request can include information such as a data stream description and a QoS characteristic of the data stream. The PCF can generate or update a PCC rule for the corresponding data stream according to the information such as the data stream description and the QoS characteristic of the data stream.

[0438] The UPF and / or an access network device can monitor the transmission delay parameter of the uplink transmission and / or the transmission delay parameter of the downlink transmission, and send an uplink transmission QoS delay monitoring report and a downlink transmission QoS delay monitoring report to the PCF or the AF. The PCF can adjust a PCC rule of the uplink transmission and / or a PCC rule of the downlink transmission based on the received QoS delay monitoring report, or the AF can determine whether to send AF session update information to the PCF, so that the PCF adjusts the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission, so that the transmission of the data stream can adapt to the current network condition.

[0439] In a possible implementation, the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission sent by the UPF to the AF can be monitored by the UPF and sent to the AF, or monitored by the access network device and sent to the AF through the UPF.

[0440] In a possible implementation, the PCF does not directly determine whether to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission. The PCF can send the received QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the AF.

[0441] After receiving the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission, the AF can determine whether to send the AF session update information for the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission.

[0442] In a possible implementation, the AF session update information includes a transmission delay parameter of the bidirectional transmission of the predetermined service data flow.

[0443] In a possible implementation, the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are used to trigger the modification of the AF session associated with the predetermined service, and further trigger the update of the PCC rule.

[0444] For example, the AF can determine whether to provide the transmission delay parameter of the bidirectional transmission to the PCF based on the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission, so that the PCF updates the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the service.

[0445] The PCF can update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the service according to the AF session update information.

[0446] The AF can provide the AF session update information to the PCF, so that the PCF determines the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission, i.e., updates the transmission delay parameter of the uplink transmission and / or the transmission delay parameter of the uplink transmission.

[0447] The AF can send the AF session update information to the PCF in at least one of the following processes:

[0448] 1) The AF provides the bidirectional transmission delay requirement to the PCF during the AF session, and provides the required QoS parameter.

[0449] 2) The AF session process with the requirement of QoS update procedure.

[0450] 3) Service specific parameter configuration procedure.

[0451] 4) Procedure for configuring policy for subsequent AF session.

[0452] In one embodiment, the transmission delay parameter of the scheduled service bidirectional transmission is sent to the PCF, including at least one of the following:

[0453] The transmission delay parameter of the scheduled service bidirectional transmission is sent to the PCF by the NEF;

[0454] The transmission delay parameter of the scheduled service bidirectional transmission is sent to the PCF by the TSCTSF;

[0455] The transmission delay parameter of the scheduled service bidirectional transmission is sent to the PCF by the NEF through the TSCTSF.

[0456] The AF provides bidirectional delay requirement information (transmission delay parameter of the scheduled service bidirectional transmission) to the PCF, which can be sent directly to the AF or indirectly to the AF; wherein the indirect sending includes:

[0457] 1) sent to the PCF by the NEF,

[0458] 2) sent to the PCF through the TSCTSF,

[0459] 3) sent to the PCF by the TSCTSF and the NEF.

[0460] In one possible implementation, the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission can be sent from the UPF to the AF through the user plane notification procedure from the UPF to the AF.

[0461] Here, the UPF can send the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the AF.

[0462] The manner in which the UPF and / or the access network device determines to report the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission is as described above, and will not be described here.

[0463] In one possible implementation, the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are used to trigger the modification of the AF session associated with the scheduled service, and further trigger the update of the PCC rule.

[0464] After receiving the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission, the AF can determine whether to send the AF session update information for the PCF to update the uplink PCC rule and / or the downlink PCC rule.

[0465] In a possible implementation, the AF session update information includes one of the following:

[0466] a transmission delay parameter of bidirectional transmission of the predetermined service data flow;

[0467] an uplink transmission QoS delay monitoring report and a downlink transmission QoS delay monitoring report.

[0468] For example, the AF can determine whether to provide the transmission delay parameter of bidirectional transmission to the PCF for the PCF to update the PCC rule of uplink transmission and / or the PCC rule of downlink transmission of the service based on the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report.

[0469] The PCF can update the PCC rule of uplink transmission and / or the PCC rule of downlink transmission of the service according to the AF session update information.

[0470] The AF sends the AF session update information to the PCF in a manner similar to the above, which will not be described herein.

[0471] In a possible implementation, the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are sent by the UPF and / or the access network device monitoring the transmission delay parameter of uplink transmission, determining that the monitored transmission delay parameter of uplink transmission meets the uplink subscription event triggering condition, and determining the associated downlink transmission QoS delay monitoring report to be sent through the association identifier.

[0472] and / or

[0473] The uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are sent by the UPF and / or the access network device monitoring the transmission delay parameter of downlink transmission, determining that the monitored transmission delay parameter of downlink transmission meets the downlink subscription event triggering condition, and determining the associated uplink transmission QoS delay monitoring report to be sent through the association identifier.

[0474] Exemplarily, the UPF monitors that the transmission delay parameter of the uplink transmission meets the uplink Subscribe event trigger condition, and can send the delay monitoring report to the PCF and / or the AF. The UPF can carry the monitored transmission delay parameter of the uplink transmission in the QoS delay monitoring report of the uplink transmission. The UPF can also determine the QoS delay monitoring report of the downlink transmission corresponding to the associated identifier according to the associated identifier of the QoS delay monitoring report of the uplink transmission. The UPF can send the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the PCF and / or the AF, thereby triggering the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, triggering the PCF to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0475] Exemplarily, the UPF monitors that the transmission delay parameter of the downlink transmission meets the downlink Subscribe event trigger condition, and can send the delay monitoring report to the PCF and / or the AF. The UPF can carry the monitored transmission delay parameter of the downlink transmission in the QoS delay monitoring report of the downlink transmission. The UPF can also determine the QoS delay monitoring report of the uplink transmission corresponding to the associated identifier according to the associated identifier of the QoS delay monitoring report of the downlink transmission. The UPF can send the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the PCF and / or the AF, thereby triggering the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, triggering the PCF to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0476] Exemplarily, the access network device monitors that the transmission delay parameter of the uplink transmission meets the uplink Subscribe event trigger condition, and can send the delay monitoring report to the PCF. The UPF can carry the monitored transmission delay parameter of the uplink transmission in the QoS delay monitoring report of the uplink transmission. The UPF can also determine the QoS delay monitoring report of the downlink transmission corresponding to the associated identifier according to the associated identifier of the QoS delay monitoring report of the uplink transmission. The UPF can send the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the PCF and / or the AF, thereby triggering the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, triggering the PCF to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0477] Exemplarily, the access network device monitors that the transmission delay parameter of the downlink transmission satisfies a downlink subscribe event (Subscribe event) triggering condition, and can send a delay monitoring report to the PCF. The UPF can carry the monitored transmission delay parameter of the downlink transmission in a QoS delay monitoring report of the downlink transmission. The UPF can also determine, according to the associated identifier of the QoS delay monitoring report of the downlink transmission, a QoS delay monitoring report of the uplink transmission corresponding to the associated identifier. The UPF can send the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the PCF and / or the AF, thereby triggering the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, triggering the PCF to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0478] In one embodiment, the AF session update information is used for the PCF to update the packet unit delay budget PDB parameter and / or the packet unit set delay budget PSDB parameter in the PCC rule of the uplink transmission of the predetermined service, and / or to update the PDB parameter and / or the PSDB parameter in the PCC rule of the downlink transmission of the predetermined service.

[0479] In one possible implementation, the PCF can adjust the PDB parameter and / or the PSDB parameter of the uplink transmission and / or adjust the PDB parameter and / or the PSDB parameter of the downlink transmission based on the AF session update information.

[0480] In one possible implementation, updating the PCC rule of the uplink transmission of the predetermined service includes updating the 5QI in the PCC rule of the uplink transmission of the predetermined service.

[0481] In one possible implementation, updating the PCC rule of the downlink transmission of the predetermined service includes updating the 5QI in the PCC rule of the downlink transmission of the predetermined service.

[0482] Exemplarily, the PCF can authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission (for example, a new 5QI corresponding to the PDB PDB can be selected) based on the AF session update information.

[0483] The order of the steps listed in the above embodiments of the AF side information transmission method is not used to limit the execution order of the steps, and each step can be executed in the order listed in each step, or can be executed in an order different from the order listed in each step without contradiction. Each step can be implemented as a separate embodiment without contradiction, or multiple steps can be combined together as an embodiment.

[0484] In combination with the embodiments of Figure 8 , Figure 9 and Figure 11 , for example,Figure 12 As shown, this exemplary embodiment provides an information transmission method, which can be executed by an AF, including:

[0485] Step 1201: Send the transmission delay parameters of the bidirectional transmission of the pre-defined service to the PCF. The bidirectional transmission delay parameters are used by the PCF to determine the association identifier of the pre-defined service. The transmission delay parameters are used to associate the uplink transmission delay parameters and the downlink transmission delay parameters of the pre-defined service data stream.

[0486] Step 1202: Receive the uplink QoS latency monitoring report and downlink QoS latency monitoring report sent by UPF or PCF.

[0487] Step 1203: Based at least on the uplink QoS latency monitoring report and the downlink QoS latency monitoring report, determine whether to send AF session update information to the PCF.

[0488] Figure 11 Implementation examples, including Figure 8 Implementation examples Figure 9 Examples and Figure 10 The content of the embodiments. Therefore, the same explanations or features will not be repeated one by one, and can be referred to the embodiments on the corresponding side.

[0489] In each embodiment, the information transmission methods performed on the PCF side, UPF side, AF side and access network side can be one-to-one corresponding. Therefore, the same explanations or features will not be repeated one by one, and the embodiments of the corresponding side can be referred to.

[0490] like Figure 13 As shown, this exemplary embodiment provides an information transmission method that can be executed by a UPF, including:

[0491] Step 1301: Receive the association identifier of the pre-ordered service, wherein the association identifier is used to associate the transmission delay parameters of the uplink transmission and the transmission delay parameters of the downlink transmission of the pre-ordered service data stream.

[0492] Reservation services include, but are not limited to, XRM services.

[0493] In one possible implementation, the associated identifier of the subscribed service is received, including at least one of the following:

[0494] The associated identifier for receiving pre-booked services is received directly.

[0495] The associated identifier for receiving pre-booked services is received indirectly.

[0496] In one possible implementation, receiving the associated identifier of a pre-booked service directly includes receiving the associated identifier of the pre-booked service directly from the PCG.

[0497] In a possible implementation, the indirect manner of sending the correlation identifier of the predetermined service comprises: receiving the correlation identifier of the predetermined service sent by the PCF through the SMF.

[0498] In a possible implementation, the predetermined service can have a bidirectional transmission data flow.

[0499] In a possible implementation, the correlation identifier can comprise any one of the following: a correlation identifier (Correlation ID); a peer identifier (Peer ID); a round trip group identifier (Round Trip Group ID); a peer indication (Peer Indication); a common identifier (Common ID). The name of the correlation identifier is not limited herein.

[0500] In a possible implementation, the correlation identifier can be generated based on the common identifier, or the correlation identifier can be obtained based on the common identifier.

[0501] In a possible implementation, the correlation identifier is associated with a transmission delay parameter of uplink transmission of the predetermined service data flow; and the correlation identifier is associated with a transmission delay parameter of downlink transmission of the predetermined service data flow. That is, the core network function node or the access network device can determine the transmission delay parameter of uplink transmission of the predetermined service data flow and the transmission delay parameter of downlink transmission of the predetermined service data flow through the correlation identifier.

[0502] The transmission delay parameter can include, but is not limited to, a delay configuration parameter associated with data flow transmission.

[0503] The transmission delay parameter can comprise at least one of the following: a transmission delay; a PDB; a PSDB. The PDB and / or the PSDB can belong to 5QI. The PSDB defines an upper limit of transmission delay of a PDU set between the N6 termination point at the UE and the UPF.

[0504] In a possible implementation, the PCF can determine the transmission delay of uplink transmission of the data flow and / or the transmission delay of downlink transmission of the data flow based on the transmission delay parameter of bidirectional transmission of the predetermined service data flow. The transmission delay parameter of bidirectional transmission of the predetermined service data flow can be indicated by the AF associated with the predetermined service to the PCF.

[0505] In a possible implementation, the AF can send the transmission delay parameter of bidirectional transmission of the predetermined service data flow to the PCF through the NEF.

[0506] In a possible implementation, the bidirectional transmission delay parameter can represent the maximum transmission delay allowed in the process of uplink transmission and downlink transmission of the predetermined service data flow.

[0507] In a possible implementation, the sum of the transmission delay of the data stream uplink transmission and the transmission delay of the data stream uplink transmission is less than or equal to the transmission delay of the predetermined service data stream bidirectional transmission.

[0508] In a possible implementation, the association identifier is associated with at least one of the following:

[0509] a transmission delay parameter of an uplink service data stream of the predetermined service;

[0510] a transmission delay parameter of a downlink service data stream of the predetermined service;

[0511] a transmission delay parameter of a QoS flow of the predetermined service;

[0512] a PCC associated with the predetermined service;

[0513] a 5QI associated with the predetermined service.

[0514] In a possible implementation, the PCF can generate the association identifier based on a predetermined determination policy.

[0515] In a possible implementation, one association identifier can be associated with one predetermined service, or one association identifier can be associated with a type of predetermined service.

[0516] In an embodiment, determining the association identifier of the predetermined service comprises:

[0517] determining the association identifier based on at least one of the following:

[0518] a transmission delay parameter of a bidirectional transmission of a data stream of the predetermined service;

[0519] subscription information associated with the predetermined service;

[0520] an operator policy associated with the predetermined service.

[0521] In a possible implementation, the requirement of the predetermined service on the transmission delay parameter can include at least one of the following: a requirement of the predetermined service on a transmission delay parameter of a bidirectional transmission of a data stream; a requirement of the predetermined service on a transmission delay parameter of an uplink transmission of a data stream; a requirement of the predetermined service on a transmission delay parameter of a downlink transmission of a data stream.

[0522] In a possible implementation, the PCF can determine a network supporting bidirectional transmission delay rule or 5QI update of the predetermined service according to a transmission delay parameter (i.e., a transmission delay parameter requirement) of a bidirectional transmission of the predetermined service, subscription information or an operator policy, and then generate the association identifier.

[0523] In a possible implementation, the association identifier can be determined based on one or more of the transmission delay parameter of the bidirectional transmission, the subscription information of the predetermined service association, and the operator policy of the predetermined service association.

[0524] For example, the association identifier can be assigned based on the operator policy. The operator policy contains the assignment rule of the association identifier.

[0525] In the prior art, the uplink transmission and the downlink transmission of the predetermined service data stream are independent of each other, the transmission delay parameter of the uplink transmission and the transmission delay parameter of the uplink transmission are not associated with each other, and the transmission delay parameter of the uplink transmission and the transmission delay parameter of the uplink transmission cannot be adjusted cooperatively.

[0526] The association identifier is used to associate the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission. The core network element and / or the access network device can determine the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission based on the association identifier, cooperatively process the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission, improve the cooperative efficiency of the transmission delay parameter of the uplink transmission and the transmission delay parameter of the uplink transmission, and thus meet the bidirectional transmission delay requirement of the predetermined service and improve the transmission success rate of the predetermined service.

[0527] In an embodiment, the association identifier is indicated by the policy control function (PCF) to the session management function (SMF) through predetermined service association policy control and charging (PCC) rules.

[0528] In a possible implementation, the association identifier can be carried in the PCC rules.

[0529] In a possible implementation, the PCC rules can carry index information of the association identifier, and the index information is used to search for the corresponding association identifier in an index table of the association identifier.

[0530] In a possible implementation, the PCC rules include at least one of the following: uplink transmission PCC rules; and downlink transmission PCC rules.

[0531] For example, when the PCF sends the PCC rules to the SMF, the association identifier for associating the transmission delay parameter of the uplink transmission and / or the transmission delay parameter of the downlink transmission can be simultaneously issued; and the SMF can issue the association identifier to the RAN and the UPF.

[0532] In a possible implementation, the PCF can send the association identifier to the SMF by carrying the association identifier in the PCC rules, and the SMF can take out the association identifier to send to the access network device and / or the UPF.

[0533] In a possible implementation, the PCF can add a field of the association identifier in the PCC rule.

[0534] In a possible implementation, the PCF can add the association identifier in an existing field in the PCC rule, such as a service data flow template or a 5G QoS identifier.

[0535] In a possible implementation, the PCF can send the association identifier to the SMF separately, and the SMF sends the association identifier to the access network device and / or the UPF.

[0536] As shown in FIG. 14A, the example embodiment provides an information transmission method, which can be executed by the UPF, and includes at least one of the following: Figure 14

[0537] Step 1401a: sending, to the PCF, the QoS delay monitoring report for the uplink transmission and the QoS delay monitoring report for the downlink transmission;

[0538] Step 1401b: sending, to the AF associated with the predetermined service, the QoS delay monitoring report for the uplink transmission and the QoS delay monitoring report for the downlink transmission;

[0539] The QoS delay monitoring report for the uplink transmission and the QoS delay monitoring report for the downlink transmission are associated by using the association identifier.

[0540] In a possible implementation, the QoS delay monitoring report for the uplink transmission and the QoS delay monitoring report for the downlink transmission sent to the PCF are used for the PCF to update the PCC rule for the uplink transmission of the predetermined service and / or the PCC rule for the downlink transmission of the predetermined service.

[0541] In a possible implementation, the QoS delay monitoring report for the uplink transmission and the QoS delay monitoring report for the downlink transmission sent to the AF are used for the AF to determine whether to send the AF session update information to the PCF, so that the PCF updates the PCC rule for the uplink transmission of the predetermined service and / or the PCC rule for the downlink transmission of the predetermined service.

[0542] The UPF can monitor the transmission delay parameter for the uplink transmission and / or the transmission delay parameter for the downlink transmission, and send the QoS delay monitoring report for the uplink transmission and the QoS delay monitoring report for the downlink transmission to the PCF, so that the PCF adjusts the PCC rule for the uplink transmission and / or the PCC rule for the downlink transmission based on the received QoS delay monitoring report, so that the transmission of the data flow can adapt to the current network condition.

[0543] In a possible implementation, the QoS delay monitoring report for the uplink transmission can be used to indicate the current transmission delay parameter for the uplink transmission; and the QoS delay monitoring report for the downlink transmission can be used to indicate the current transmission delay parameter for the downlink transmission.​

[0544] In a possible implementation, the updating the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service comprises at least one of:

[0545] adjusting the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission;

[0546] creating a new PCC rule of the uplink transmission and / or a new PCC rule of the downlink transmission.

[0547] For example, the PCF can update the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service, so that the sum of the uplink transmission delay of the data flow and the uplink transmission delay of the data flow is less than or equal to the delay requirement of the bidirectional transmission of the data flow.

[0548] Here, the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report can be sent from the UPF to the AF through a user plane face notification procedure from the UPF to the AF.

[0549] Here, the UPF can report the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report to the AF.

[0550] The manner in which the UPF and / or the access network device determines to report the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report is as described above, and will not be described here.

[0551] In a possible implementation, the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are used to trigger modification of the AF session associated with the predetermined service, thereby triggering updating of the PCC rule.

[0552] After receiving the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report, the AF can determine whether to send AF session update information for the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission.

[0553] Here, the UPF can send the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report directly to the AF, or send the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report to the AF through the NEF.

[0554] In a possible implementation, the AF session update information comprises one of:

[0555] a transmission delay parameter of the bidirectional transmission of the predetermined service data flow;

[0556] The uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report.

[0557] For example, the AF can determine whether to provide the transmission delay parameter of the bidirectional transmission to the PCF based on the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report, so that the PCF updates the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission.

[0558] The PCF can update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission according to the AF session update information.

[0559] The AF can provide the AF session update information to the PCF, so that the PCF determines the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission, i.e., updates the transmission delay parameter of the uplink transmission and / or the transmission delay parameter of the uplink transmission.

[0560] The AF can send the AF session update information to the PCF in at least one of the following processes:

[0561] 1) The AF provides the bidirectional transmission delay requirement to the PCF during the AF session, and provides the required QoS parameter.

[0562] 2) The AF session process with the requirement of QoS update procedure.

[0563] 3) The service specific parameter configuration process.

[0564] 4) The process of configuring the policy for the subsequent AF session.

[0565] The AF provides the bidirectional transmission delay requirement information to the PCF, which can be directly sent to the AF or indirectly sent to the AF; wherein the indirect sending includes:

[0566] 1) sent to the PCF through the NEF,

[0567] 2) sent to the PCF through the TSCTSF,

[0568] 3) sent to the PCF through the TSCTSF and the NEF.

[0569] In one possible implementation, the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report sent from the UPF to the PCF can be monitored by the UPF and sent to the PCF, or monitored by the access network device and sent to the PCF through the UPF.

[0570] In one possible implementation, the uplink QoS latency monitoring report and downlink QoS latency monitoring report sent from the UPF to the AF can be obtained by the UPF through monitoring and sent to the AF, or they can be obtained by the access network equipment through monitoring and sent to the AF via the UPF.

[0571] Combination Figure 13 and Figure 14 Examples, such as Figure 15 As shown, this exemplary embodiment provides an information transmission method that can be executed by a UPF, including:

[0572] Step 1501: Receive the association identifier of the pre-ordered service, wherein the association identifier is used to associate the transmission delay parameters of the uplink transmission and the downlink transmission of the pre-ordered service data stream.

[0573] The method also includes at least one of the following:

[0574] Step 1501a: Send the uplink QoS latency monitoring report and the downlink QoS latency monitoring report to the PCF;

[0575] Step 1501b: Send the uplink QoS latency monitoring report and the downlink QoS latency monitoring report to the AF associated with the predetermined service;

[0576] Figure 15 Implementation examples, including Figure 13 Examples and Figure 14 The content of the embodiments. Therefore, the same explanations or features will not be repeated one by one, and can be referred to the embodiments on the corresponding side.

[0577] In one embodiment, the uplink QoS latency monitoring report and the downlink QoS latency monitoring report are sent by the UPF and / or access network device after monitoring the uplink transmission latency parameters, determining that the monitored uplink transmission latency parameters meet the first uplink subscription event triggering condition, and identifying the associated downlink QoS latency monitoring report through the association identifier.

[0578] and / or

[0579] The uplink QoS latency monitoring report and the downlink QoS latency monitoring report are sent by the UPF and / or access network equipment to monitor the downlink transmission latency parameters, determine that the monitored downlink transmission latency parameters meet the triggering conditions of the first downlink subscription event, and identify the associated uplink QoS latency monitoring report through the association identifier.

[0580] Exemplarily, the UPF monitors that the transmission delay parameter of the uplink transmission meets the uplink Subscribe event trigger condition, and can send the delay monitoring report to the PCF and / or the AF. The UPF can carry the monitored transmission delay parameter of the uplink transmission in the QoS delay monitoring report of the uplink transmission. The UPF can also determine the QoS delay monitoring report of the downlink transmission corresponding to the associated identifier according to the associated identifier of the QoS delay monitoring report of the uplink transmission. The UPF can send the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the PCF and / or the AF, thereby triggering the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, triggering the PCF to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0581] Exemplarily, the UPF monitors that the transmission delay parameter of the downlink transmission meets the downlink Subscribe event trigger condition, and can send the delay monitoring report to the PCF and / or the AF. The UPF can carry the monitored transmission delay parameter of the downlink transmission in the QoS delay monitoring report of the downlink transmission. The UPF can also determine the QoS delay monitoring report of the uplink transmission corresponding to the associated identifier according to the associated identifier of the QoS delay monitoring report of the downlink transmission. The UPF can send the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the PCF and / or the AF, thereby triggering the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, triggering the PCF to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0582] Exemplarily, the access network device monitors that the transmission delay parameter of the uplink transmission meets the uplink Subscribe event trigger condition, and can send the delay monitoring report to the PCF. The UPF can carry the monitored transmission delay parameter of the uplink transmission in the QoS delay monitoring report of the uplink transmission. The UPF can also determine the QoS delay monitoring report of the downlink transmission corresponding to the associated identifier according to the associated identifier of the QoS delay monitoring report of the uplink transmission. The UPF can send the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the PCF and / or the AF, thereby triggering the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, triggering the PCF to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0583] Exemplarily, the access network device monitors the transmission delay parameter of the downlink transmission to satisfy a downlink subscribe event trigger condition, and can send a delay monitoring report to the PCF. The UPF can carry the monitored transmission delay parameter of the downlink transmission in a QoS delay monitoring report of the downlink transmission. The UPF can also determine the QoS delay monitoring report of the uplink transmission corresponding to the associated identifier according to the associated identifier of the QoS delay monitoring report of the downlink transmission. The UPF can send the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the PCF and / or the AF, thereby triggering the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, triggering the PCF to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0584] In a possible implementation, the uplink subscribe event adopted by the UPF and the uplink subscribe event adopted by the access network device can be the same or different, which is not limited herein.

[0585] In a possible implementation, the downlink subscribe event adopted by the UPF and the downlink subscribe event adopted by the access network device can be the same or different, which is not limited herein.

[0586] In an embodiment, updating the PCC rule of the uplink transmission of the predetermined service comprises: updating a packet unit delay budget PDB parameter and / or a packet unit set delay budget PSDB parameter in the PCC rule of the uplink transmission of the predetermined service.

[0587] Updating the PCC rule of the downlink transmission of the predetermined service comprises: updating a PDB parameter and / or a PSDB parameter in the PCC rule of the downlink transmission of the predetermined service.

[0588] In a possible implementation, the PCF can adjust the PDB parameter and / or the PSDB parameter of the uplink transmission and / or adjust the PDB parameter and / or the PSDB parameter of the downlink transmission based on the AF session update information.

[0589] In a possible implementation, updating the PCC rule of the uplink transmission of the predetermined service comprises: updating a 5QI in the PCC rule of the uplink transmission of the predetermined service.

[0590] In a possible implementation, updating the PCC rule of the downlink transmission of the predetermined service comprises: updating a 5QI in the PCC rule of the downlink transmission of the predetermined service.

[0591] Exemplarily, the PCF can authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission (for example, a new 5QI corresponding to the PDB can be selected) based on the AF session update information.

[0592] The order of the steps of the above-mentioned UPF-side information transmission method embodiments is not used to limit the execution order of the steps, and the steps can be executed in the order of the steps or not in the order of the steps without contradiction. Each step can be implemented as a separate embodiment without contradiction, or multiple steps can be combined together as an embodiment.

[0593] In each embodiment, the information transmission methods performed by the PCF side, the UPF side, the AF side, and the access network side can be one-to-one corresponding, and therefore the same explanations or features will not be repeated one by one, and can be referred to the corresponding side embodiments.

[0594] As shown in the above-mentioned embodiments, the present exemplary embodiments provide an information transmission method, which can be executed by an access network device, including: Figure 16

[0595] Step 1601: receiving a correlation identifier of a predetermined service, wherein the correlation identifier is used to associate a transmission delay parameter of an uplink transmission of a predetermined service data flow and a transmission delay parameter of a downlink transmission.

[0596] The predetermined service includes but is not limited to an XRM service.

[0597] In one possible implementation, the receiving of the correlation identifier of the predetermined service includes at least one of the following:

[0598] Directly receiving the correlation identifier of the predetermined service;

[0599] Indirectly receiving the correlation identifier of the predetermined service.

[0600] In one possible implementation, the directly receiving the correlation identifier of the predetermined service includes: directly receiving the correlation identifier of the predetermined service from a PCG.

[0601] In one possible implementation, the indirectly receiving the correlation identifier of the predetermined service includes: receiving the correlation identifier of the predetermined service sent by a PCF through an SMF.

[0602] In one possible implementation, the predetermined service can have a bidirectional transmission data flow.

[0603] In one possible implementation, the correlation identifier can include any of the following: a correlation identifier (Correlation ID); a peer identifier (Peer ID); a bidirectional transmission group identifier (Round Trip Group ID); a peer indication (Peer Indication); a common identifier (Common ID). The name of the correlation identifier is not limited herein.

[0604] ​In a possible implementation, the association identifier can be generated based on the common identifier, or the association identifier can be mapped based on the common identifier.

[0605] In a possible implementation, the association identifier is associated with a transmission delay parameter of the uplink transmission of the predetermined service data flow; and the association identifier is associated with a transmission delay parameter of the downlink transmission of the predetermined service data flow. That is, the core network function node or the access network device can determine the transmission delay parameter of the uplink transmission of the predetermined service data flow and the transmission delay parameter of the downlink transmission of the predetermined service data flow through the association identifier.

[0606] The transmission delay parameter can include, but is not limited to, a delay configuration parameter associated with the transmission of the data flow.

[0607] The transmission delay parameter can include at least one of the following: a transmission delay; a PDB; a PSDB. The PDB and / or the PSDB can belong to 5QI. The PSDB defines an upper limit of the transmission delay of a PDU set between the N6 termination point at the UE and the UPF.

[0608] In a possible implementation, the PCF can determine the transmission delay of the uplink transmission of the data flow and / or the transmission delay of the uplink transmission of the data flow based on the transmission delay parameter of the bidirectional transmission of the predetermined service data flow. The transmission delay parameter of the bidirectional transmission of the predetermined service data flow can be indicated by the AF associated with the predetermined service to the PCF.

[0609] In a possible implementation, the AF can send the transmission delay parameter of the bidirectional transmission of the predetermined service data flow to the PCF through the NEF.

[0610] In a possible implementation, the bidirectional transmission delay parameter can represent the maximum transmission delay allowed in the uplink transmission and the downlink transmission of the predetermined service data flow.

[0611] In a possible implementation, the sum of the transmission delay of the uplink transmission of the data flow and the transmission delay of the uplink transmission of the data flow is less than or equal to the transmission delay of the bidirectional transmission of the predetermined service data flow.

[0612] In a possible implementation, the association identifier is associated with at least one of the following:

[0613] a transmission delay parameter of the uplink service data flow of the predetermined service;

[0614] a transmission delay parameter of the downlink service data flow of the predetermined service;

[0615] a transmission delay parameter of the QoS flow of the predetermined service;

[0616] a PCC associated with the predetermined service;

[0617] A 5QI associated with the predetermined service.

[0618] In a possible implementation, the PCF can generate the association identifier based on a predetermined determination policy.

[0619] In a possible implementation, one association identifier can be associated with one predetermined service, or one association identifier can be associated with a type of predetermined service.

[0620] In an embodiment, determining the association identifier of the predetermined service comprises:

[0621] The association identifier is determined based on at least one of the following:

[0622] A transmission delay parameter of bidirectional transmission of the data flow of the predetermined service;

[0623] Subscription information associated with the predetermined service;

[0624] An operator policy associated with the predetermined service.

[0625] In a possible implementation, the requirement of the predetermined service on the transmission delay parameter can include at least one of the following: a requirement of the predetermined service on the transmission delay parameter of bidirectional transmission of the data flow; a requirement of the predetermined service on the transmission delay parameter of uplink transmission of the data flow; a requirement of the predetermined service on the transmission delay parameter of downlink transmission of the data flow.

[0626] In a possible implementation, the PCF can determine a network supporting bidirectional transmission delay rule or 5QI update of the predetermined service according to the transmission delay parameter (i.e., the transmission delay parameter requirement) of bidirectional transmission of the predetermined service, the subscription information associated with the predetermined service, or the operator policy associated with the predetermined service, and then generate the association identifier.

[0627] In a possible implementation, the association identifier can be determined based on one or more of the following: the transmission delay parameter of bidirectional transmission; the subscription information associated with the predetermined service; and the operator policy associated with the predetermined service.

[0628] For example, the association identifier can be assigned based on the operator policy. The operator policy contains the assignment rule of the association identifier.

[0629] In the related art, the uplink transmission and the downlink transmission of the data flow of the predetermined service are independent of each other, the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission are not associated with each other, and the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission cannot be adjusted cooperatively.

[0630] The association identifier is used to associate the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission. The core network element and / or the access network device can determine the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission based on the association identifier, perform the cooperative processing of the transmission delay parameter of the uplink transmission and the transmission delay parameter of the downlink transmission, improve the cooperative efficiency of the transmission delay parameter of the uplink transmission and the transmission delay parameter of the uplink transmission, and further meet the predetermined service bidirectional transmission delay requirement and improve the predetermined service transmission success rate.

[0631] In one embodiment, the association identifier is indicated by the predetermined service associated policy control and charging (PCC) rule carried in the policy control function (PCF) to the session management function (SMF).

[0632] In one possible implementation, the association identifier can be carried in the PCC rule.

[0633] In one possible implementation, the PCC rule can carry index information of the association identifier, and the index information is used to retrieve the corresponding association identifier in the index table of the association identifier.

[0634] In one possible implementation, the PCC rule includes at least one of the following: the PCC rule of the uplink transmission; and the PCC rule of the downlink transmission.

[0635] For example, when the PCF sends the PCC rule to the SMF, the association identifier for associating the transmission delay parameter of the uplink transmission and / or the transmission delay parameter of the downlink transmission can be simultaneously issued; and the SMF can issue the association identifier to the RAN and the UPF.

[0636] In one possible implementation, the PCF can send the association identifier to the SMF in the PCC rule, and the SMF can take out the association identifier to send to the access network device and / or the UPF.

[0637] In one possible implementation, the PCF can add a field in the PCC rule to carry the association identifier.

[0638] In one possible implementation, the PCF can add the association identifier in an existing field in the PCC rule, such as a service data flow template or a 5G QoS identifier.

[0639] In one possible implementation, the PCF can send the association identifier to the SMF separately, and the SMF can send it to the access network device and / or the UPF.

[0640] As shown in the Figure 17 The present exemplary embodiment provides an information transmission method, which can be executed by an access network device, and includes the following steps.

[0641] Step 1701: sending, by the UPF, the uplink QoS latency monitoring report and the downlink QoS latency monitoring report to the PCF, wherein the uplink QoS latency monitoring report and the downlink QoS latency monitoring report are associated by the association identifier.

[0642] In a possible implementation, the uplink QoS latency monitoring report and the downlink QoS latency monitoring report are used for the PCF to update the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service.

[0643] The access network device can monitor the transmission latency parameter of the uplink transmission and / or the transmission latency parameter of the downlink transmission, and send the uplink QoS latency monitoring report and the downlink QoS latency monitoring report to the PCF, so that the PCF adjusts the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission based on the received QoS latency monitoring report, so that the transmission of the data flow can adapt to the current network condition.

[0644] In a possible implementation, the uplink QoS latency monitoring report can be used to indicate the current transmission latency parameter of the uplink transmission; and the downlink QoS latency monitoring report can be used to indicate the current transmission latency parameter of the downlink transmission.

[0645] In a possible implementation, updating the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service comprises at least one of the following:

[0646] adjusting the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission;

[0647] creating a new PCC rule of the uplink transmission and / or a new PCC rule of the downlink transmission.

[0648] For example, the PCF can update the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service, so that the sum of the latency of the uplink transmission of the data flow and the latency of the uplink transmission of the data flow is less than or equal to the latency requirement of the bidirectional transmission of the data flow.

[0649] In an embodiment, the uplink QoS latency monitoring report and the downlink QoS latency monitoring report are monitored by the access network device for the transmission latency parameter of the uplink transmission, it is determined that the monitored transmission latency parameter of the uplink transmission meets the second uplink subscription event triggering condition, and the associated downlink QoS latency monitoring report is determined to be sent by the association identifier.

[0650] and / or,

[0651] The QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are used by the access network device to monitor the transmission latency parameter of the downlink transmission, determine that the monitored transmission latency parameter of the downlink transmission meets the second downlink subscription event triggering condition, and determine the QoS latency monitoring report of the associated uplink transmission sent through the association identifier.

[0652] For example, when the access network device monitors that the transmission latency parameter of the uplink transmission meets the uplink subscription event triggering condition, the access network device can send the latency monitoring report to the PCF. The UPF can carry the monitored transmission latency parameter of the uplink transmission in the QoS latency monitoring report of the uplink transmission. The UPF can also determine the QoS latency monitoring report of the downlink transmission corresponding to the association identifier according to the association identifier of the QoS latency monitoring report of the uplink transmission. The UPF can send the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission to the PCF and / or the AF, thereby triggering the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, the PCF is triggered to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0653] For example, when the access network device monitors that the transmission latency parameter of the uplink transmission meets the uplink subscription event triggering condition, the access network device can send the latency monitoring report to the PCF. The UPF can carry the monitored transmission latency parameter of the uplink transmission in the QoS latency monitoring report of the uplink transmission. The UPF can also determine the QoS latency monitoring report of the downlink transmission corresponding to the association identifier according to the association identifier of the QoS latency monitoring report of the uplink transmission. The UPF can send the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission to the PCF and / or the AF, thereby triggering the PCF to update the PCC rule of the uplink transmission and / or the PCC rule of the downlink transmission of the predetermined service. For example, the PCF is triggered to authorize a new PDB parameter of the uplink transmission and / or a PDB parameter of the downlink transmission.

[0654] In one embodiment, updating the PCC rule of the uplink transmission of the predetermined service comprises updating the packet unit delay budget PDB parameter and / or the packet unit set delay budget PSDB parameter in the PCC rule of the uplink transmission of the predetermined service.

[0655] Updating the PCC rule of the downlink transmission of the predetermined service comprises updating the PDB parameter and / or the PSDB parameter in the PCC rule of the downlink transmission of the predetermined service.

[0656] Updating the PCC rule of the downlink transmission of the predetermined service comprises updating the PDB parameter and / or the PSDB parameter in the PCC rule of the downlink transmission of the predetermined service.

[0657] In a possible implementation, the PCF can adjust the PDB parameter and / or the PSDB parameter of the uplink transmission and / or adjust the PDB parameter and / or the PSDB parameter of the downlink transmission based on the AF session update information.

[0658] In a possible implementation, the updating the PCC rule of the uplink transmission of the predetermined service comprises: updating the 5QI in the PCC rule of the uplink transmission of the predetermined service.

[0659] In a possible implementation, the updating the PCC rule of the downlink transmission of the predetermined service comprises: updating the 5QI in the PCC rule of the downlink transmission of the predetermined service.

[0660] For example, the PCF can authorize a new PDB parameter of the uplink transmission and / or a new PDB parameter of the downlink transmission (for example, a new 5QI corresponding to the PDB PDB can be selected) based on the AF session update information.

[0661] In combination with the embodiments of Figure 16 and Figure 17 , as shown in Figure 18 , the example embodiment provides an information transmission method, which can be executed by an access network device, comprising:

[0662] Step 1801: receiving an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission delay parameter of an uplink transmission of a predetermined service data flow and a transmission delay parameter of a downlink transmission;

[0663] Step 1802: sending a QoS delay monitoring report of the uplink transmission and a QoS delay monitoring report of the downlink transmission to the PCF through the UPF, wherein the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are associated by using the association identifier;

[0664] Figure 18 The embodiments contain the contents of Figure 16 the embodiments and Figure 17 the embodiments. Therefore, the same explanations or features are not described one by one, and the corresponding side embodiments can be referred to.

[0665] The order of the steps listed in the above access network device side information transmission method embodiment is not used to limit the execution order of each step, and each step can be executed in the order of each step or not in the order of each step without contradiction. Each step can be implemented as a separate embodiment without contradiction, or multiple steps can be combined together as an embodiment.

[0666] In each embodiment, the information transmission methods performed by the PCF side, the UPF side, the AF side, and the access network side can be one-to-one correspondence, and thus the same explanations or features will not be described one by one. For reference, the embodiments of the corresponding side can be referred to.

[0667] The following provides a specific example in combination with any of the above embodiments:

[0668] The PCF adds a round trip (RT) correlation identifier (Correlation ID) for the uplink data flow and the downlink data flow of the XRM service. The correlation identifier can include one of the following: a peer identifier (Peer ID); a round trip group identifier (Round Trip Group ID); a peer indication (Peer Indication); and a common ID. The correlation identifier is used to associate the uplink and downlink service data flow (SDF) / quality of service flow (QoS) / policy control and charging (PCC) rule / 5G quality of service indicator (5QI) (such as PDB), i.e., the transmission delay parameter. The PCF simultaneously issues the correlation identifier of the round trip to the SMF PCC rule; the SMF issues the correlation identifier to the RAN and the UPF; and the RAN and the UPF send the uplink (UL) / downlink (DL) delay quality of service monitoring notification to the PCF / AF, and simultaneously send the UL / DL delay identified by the correlation identifier.

[0669] Optionally, the PCF divides the round trip delay into uplink PDB and downlink PDB, generates two PCC rules corresponding to the uplink SDF and the downlink SDF, and allocates corresponding 5QIs to the two rules considering the corresponding PDB. The two PCC rules are respectively associated with quality of service monitoring (QoS monitoring) policies to monitor the uplink delay and the downlink delay.

[0670] Optionally, the PCF simultaneously issues the correlation identifier of the uplink and downlink SDF / QoS flow / PCC rule / 5QI (PDB) associated with the round trip to the SMF PCC rule; the SMF issues the correlation identifier to the RAN and the UPF;

[0671] Optionally, the RAN and UPF send a correlation notification to the PCF / AF based on the correlation identifier, the correlation of uplink and downlink SDF / QoS flow / 5QI (PDB) for initiating session modification (e.g., for the AF to update the bi-directional transmission latency requirement, or for the PCF to update the uplink and / or downlink PCC rules / PDB).

[0672] Further, the RAN monitors the latency QoS monitoring of the UL SDF / QoS flow / 5QI to meet the subscription event (Subscribe event) and needs to send a notification to the UPF, and the RAN simultaneously sends the latency QoS monitoring report of the DL SDF / QoS flow / 5QI identified by the correlation identifier to the UPF. The RAN sends the UL and DL QoS monitoring reports (i.e., the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission) to the UPF / PCF; triggers the uplink and / or downlink PCC rule update; optionally, the PCF authorizes a new uplink / downlink PDB, and the PCC rule corresponds to the PDB (which can be a new 5QI corresponding to the selected PDB). The RAN monitors the downlink latency sending QoS monitoring report in a similar way to the RAN monitoring the uplink latency sending QoS monitoring report, which will not be described here.

[0673] Further, the UPF monitors the latency QoS monitoring of the UL SDF / QoS flow / 5QI to meet the subscription event (Subscribe event) and needs to send a notification to the PCF / AF, and the UPF simultaneously sends the latency QoS monitoring report of the DL SDF / QoS flow / 5QI identified by the correlation identifier to the PCF / AF. The UPF sends the UL and DL QoS monitoring reports (i.e., the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission) to the PCF / AF; triggers the uplink and / or downlink PCC rule update; optionally, the PCF authorizes a new uplink / downlink PDB, and the PCC rule corresponds to the PDB (which can be a new 5QI corresponding to the selected PDB). The UPF monitors the downlink latency sending QoS monitoring report in a similar way to the RAN monitoring the uplink latency sending QoS monitoring report, which will not be described here.

[0674] Further, the PCF can directly initiate rule (such as PCC rule) update or send QoS monitoring report to the AF to trigger AF session modification and indirectly initiate rule update.

[0675] Optionally, PCF puts the correlation ID in PCC rules or outside the rules; further, the correlation ID / RT indication / Peer ID / Round Trip Group ID / Peer Indication parameter can be added in the PCC rules, or the correlation ID / RT indication / Peer ID / Round Trip Group ID / Peer Indication can be implicitly carried by the existing parameters (such as: service data flow template, or 5G QoS identifier).

[0676] Optionally, according to the bidirectional transmission latency requirement, PCF can divide the bidirectional transmission into uplink packet delay budget (UL PDB) and downlink packet delay budget (DL PDB). The UL PDB and the DL PDB can be different, but the sum of the two cannot exceed the bidirectional transmission latency. PCF decides to generate a correlation ID, which is associated with the UL SDF / QoS flow / PCC rule / 5QI (PDB) and the DL SDF / QoS flow / PCC rule / 5QI (PDB).

[0677] Optionally, PCF can adjust the UL PDB and the DL PDB according to the QoS monitoring report. That is, PCF can adjust the uplink and / or downlink PCC rules (such as UL PDB and / or DL PDB, UL 5QI and / or DL 5QI) based on the latency QoS monitoring report of DL and UL.

[0678] Optionally, PCF decides to generate a correlation ID based on the bidirectional transmission latency requirement indication (RT latency requirement indication), and / or XRM service subscription information, and / or operator policy; for example, if the requirement indication, service subscription, or operator policy supports the rule or 5QI update of bidirectional transmission latency, the correlation ID is generated to identify the uplink and downlink SDF / QoS flow / PCC rule / 5QI (PDB).

[0679] Optionally, PCF adjusts the uplink and / or downlink PCC rules (such as UL PDB and / or DL PDB, UL 5QI and / or DL 5QI) based on the QoS monitoring report, which can directly trigger the PCC rule update for PCF, or PCF notifies the QoS monitoring report to AF for AF to trigger the PCC rule update.

[0680] Optionally, PCF directly or indirectly triggers the PCC rule update. If the corresponding PDB can be updated, the updated PDB is assigned with the corresponding 5QI.

[0681] Optionally, the AF provides bidirectional latency requirement information to the PCF, (the AF provides the requirement information to the PCF, which can be through the following processes:

[0682] 1) The AF provides bidirectional transmission latency requirements to the PCF during the AF session, and provides the required QoS parameters.

[0683] 2) AF session process with QoS update procedure.

[0684] 3) Service specific parameter configuration process.

[0685] 4) Process for configuring policies for subsequent AF sessions.

[0686] The AF provides bidirectional latency requirement information to the PCF, which can be sent directly to the AF, or indirectly to the AF; wherein the indirect transmission includes:

[0687] 1) sent to the PCF through the NEF,

[0688] 2) sent to the PCF through the TSCTSF,

[0689] 3) sent to the PCF through the TSCTSF and the NEF.

[0690] For details, see the following embodiment description:

[0691] Figure 19 The process for setting an AF session with QoS parameters includes the following steps:

[0692] Step 1901: The AF sends an AF session resource request, for example, through an "Nnef_AFsessionWithQoS_Create request" to create an AF request. The AF carries the bidirectional latency requirements of the XRM service related media data stream (including: round-trip latency, or two-way delay budget) in the request message. Bidirectional latency can include uplink latency and / or downlink latency, or uplink latency PDB or downlink latency PDB;

[0693] Optionally, the AF session resource request carries XRM service information, common ID information identifying the XRM service data flow group, UE address / UE identifier, AF identifier application identifier (AF Identifier Application ID), flow description, data network name (DNN), single network slice selection assistance information (S-NSSAI), QoS parameters, and the like. Here, the common ID can be used to identify all flows in the XRM service group.

[0694] Step 1902: NEF authorizes the AF request. If it is an untrusted AF, the request of the AF is sent to the PCF by the NEF. (Optionally, the NEF performs relevant mapping, including mapping of the XRM service (AF-service-identifier) to the DNN and S-NSSAI, mapping of the external application to the core network (CN) application identifier; and mapping of the external UE identifier to the CN-in UE identifier (such as the SUbscription Permanent Identifier (SUPI)) based on the unified data management (UDM) subscription information, and mapping of the external-to-internal XRM service group identifier based on the UDM subscription information.)

[0695] Step 1903: The NEF authorizes the AF request and decides whether to call the TSCTSF or directly contact the PCF according to the parameters provided by the AF. The PCF receives the attributes provided by the AF from the NEF or the TSCTSF. The NEF triggers the Npcf_PolicyAuthorization_Create request to send the AF request to the PCF, carrying the bidirectional delay requirement information for the PCF policy decision. The message carries the XRM service-related information in the AF request;

[0696] Step 1904: The PCF makes a policy decision. The PCF can decide that the updated or new policy information needs to be sent to the SMF.

[0697] A RT Correlation ID (Correlation ID) is added for the uplink and downlink data flow of the XRM service: PeerID / Round Trip Group ID / Peer Indication; the Correlation ID is used to associate the uplink and downlink SDF / QoS flow / PCC rule / 5QI (PDB) of the Round Trip; the PCF simultaneously issues the RT Correlation ID when issuing the PCC rule to the SMF; the SMF issues the Correlation ID to the RAN and UPF; when the RAN and UPF send the DL latency QoS monitoring notification (i.e., the QoS latency monitoring report), the UL latency QoS monitoring notification of the associated Correlation ID is also sent to the PCF / AF. When the RAN and UPF send the UL latency QoS monitoring notification, the DL latency QoS monitoring notification of the associated Correlation ID is also sent to the PCF / AF

[0698] The PCF adds a Round Trip (RT) Correlation ID for the uplink and downlink data flow of the XRM service. The Correlation ID can include one of the following: Peer ID; Round Trip Group ID; Peer Indication. The Correlation ID is used to associate the uplink and downlink Service Data Flow (SDF) / QoS flow / PCC rule / 5G QoS indicator (5QI) (such as PDB) of the Round Trip; the PCF simultaneously issues the RT Correlation ID when issuing the PCC rule to the SMF; the SMF issues the Correlation ID to the RAN and UPF; when the RAN and UPF send the DownLink (DL) / UpLink (UL) latency QoS monitoring report, the UL / DL latency of the associated Correlation ID is also sent to the PCF / AF.

[0699] Optionally, the PCF divides the Round Trip latency into uplink PDB and downlink PDB, generates two PCC rules corresponding to the uplink and downlink SDF, and allocates corresponding 5QIs to the two rules considering the corresponding PDB. The two PCC rules are respectively associated with QoS monitoring policies to monitor the uplink and downlink latency.

[0700] Optionally, PCF issues the PCC rules to SMF, and simultaneously issues a correlation identifier associated with the bidirectional transmission uplink and downlink SDF / QoS flow / PCC rule / 5QI (PDB); SMF issues the correlation identifier to RAN and UPF;

[0701] Optionally, RAN and UPF associate the uplink and downlink SDF / QoS flow / 5QI (PDB) based on the correlation identifier, and send a correlation notification to PCF / AF, so that PCF / AF initiates session modification (such as AF updating bidirectional transmission delay requirement, or PCF updating uplink and / or downlink PCC rule / PDB)

[0702] Further, RAN monitors the uplink SDF / QoS flow / 5QI delay QoS monitoring to meet the subscription event (Subscribe event), and needs to send a notification to UPF, and RAN simultaneously sends a delay QoS monitoring report of the DL SDF / QoS flow / 5QI identified by the correlation identifier to UPF. RAN sends the UL and DL QoS monitoring report to UPF / PCF; triggers uplink and / or downlink PCC rule update; optionally, PCF authorizes new uplink / downlink PDB, and PCC rule corresponds to PDB (which can be a new 5QI corresponding to selected PDB). The way RAN monitors the downlink delay QoS monitoring report is similar to the way RAN monitors the uplink delay QoS monitoring report, which will not be repeated here.

[0703] Further, UPF monitors the uplink SDF / QoS flow / 5QI delay QoS monitoring to meet the subscription event (Subscribe event), and needs to send a notification to PCF / AF, and UPF simultaneously sends a delay QoS monitoring report of the DL SDF / QoS flow / 5QI identified by the correlation identifier to PCF / AF. UPF sends the UL and DL QoS monitoring report to PCF / AF; triggers uplink and / or downlink PCC rule update; optionally, PCF authorizes new uplink / downlink PDB, and PCC rule corresponds to PDB (which can be a new 5QI corresponding to selected PDB). The way RAN monitors the downlink delay QoS monitoring report is similar to the way RAN monitors the uplink delay QoS monitoring report, which will not be repeated here.

[0704] Further, PCF can directly initiate rule (such as PCC rule) update, or send QoS monitoring report to AF, trigger AF session modification, and indirectly initiate rule update;

[0705] Optionally, PCF puts the correlation ID in PCC rules or outside the rules; further, the correlation ID / RT indication / Peer ID / Round Trip Group ID / Peer Indication parameters can be added in the PCC rules, or the correlation ID / RT indication / Peer ID / Round Trip Group ID / Peer Indication can be implicitly carried through existing parameters (service data flow template or 5G QoS identifier)

[0706] Optionally, according to the bidirectional transmission latency requirement, PCF can divide the bidirectional transmission into uplink packet delay budget (UL PDB) and downlink packet delay budget (DL PDB). The UL PDB and the DL PDB can be different, but the sum of the two cannot exceed the bidirectional transmission latency. PCF decides to generate a correlation ID, which is associated with the UL SDF / QoS flow / PCC rule / 5QI (PDB) and the DL SDF / QoS flow / PCC rule / 5QI (PDB);

[0707] Optionally, PCF can adjust the UL PDB and the DL PDB according to the QoS monitoring report. That is, PCF can adjust the uplink and / or downlink PCC rules (such as UL PDB and / or DL PDB, UL 5QI and / or DL 5QI) based on the latency QoS monitoring report of DL and UL;

[0708] Optionally, PCF decides to generate a correlation ID based on the bidirectional transmission latency requirement indication (RT latency requirement indication), and / or XRM service subscription information, and / or operator policy; for example, if the requirement indication, service subscription or operator policy supports the rule or 5QI update of bidirectional transmission latency, the correlation ID is generated to identify the uplink and downlink SDF / QoS flow / PCC rule / 5QI (PDB).

[0709] Optionally, PCF adjusts the uplink and / or downlink PCC rules (e.g. UL PDB and / or DL PDB, UL 5QI and / or DL 5QI) based on the QoS monitoring report, which can directly trigger the PCC rule update for PCF, or PCF notifies the QoS monitoring report to AF for AF to trigger the PCC rule update.

[0710] Optionally, PCF directly or indirectly triggers the PCC rule update. If the corresponding PDB can be updated, the updated PDB is assigned with the corresponding 5QI.

[0711] Optionally, the AF provides bidirectional delay requirement information to the PCF, (the AF provides the requirement information to the PCF, which can be through the following processes:

[0712] 1) The AF provides bidirectional transmission delay requirements to the PCF during the AF session, and provides the required QoS parameters.

[0713] 2) AF session process with QoS update procedure.

[0714] 3) Service specific parameter configuration process.

[0715] 4) Process for configuring policies for subsequent AF sessions.

[0716] The AF provides bidirectional delay requirement information to the PCF, which can be sent directly to the AF or indirectly to the AF; wherein the indirect transmission includes:

[0717] 1) sent to the PCF through the NEF,

[0718] 2) sent to the PCF through the TSCTSF,

[0719] 3) sent to the PCF through the TSCTSF and the NEF.

[0720] Step 1905: The PCF sends a "Npcf_Policy Authorization_Create response" to the NEF.

[0721] Step 1906: The NEF sends an "Nnef_AFsessionWithQoS_Create response" message to the AF, carrying feedback results, indicating whether the request is authorized.

[0722] Step 1907: The PCF sends a "Npcf_SMPolicyControl_UpdateNotify request" to the SMF to initiate an SM policy association modification request (PCC rule (QoS monitoring policy)).

[0723] Based on the measured QoS monitoring policy from the PCF, the SMF generates a QoS monitoring configuration for the UPF (and RAN if needed), as described in step 1907.

[0724] When the PCF issues the PCC rule to the SMF, the bidirectional transmission association identifier is also issued; the SMF issues the association identifier to the RAN and the UPF;

[0725] Optionally, the PCF puts the correlation ID in the PCC rules or outside the rules; further, the PCF can add Correlation ID / RT indication / Peer ID / Round Trip Group ID / Peer Indication parameters in the PCC rules or implicitly carry the Correlation ID / RT indication / Peer ID / Round Trip Group ID / Peer Indication through existing parameters (Service Data Flow Template or 5G QoS Identifier).

[0726] Step 1908: The SMF replies to the PCF with a response to the SM policy association modification (Npcf_SMPolicyControl_UpdateNotify response).

[0727] Step 1909: The SMF initiates an N4 session modification request (QoS monitoring configuration) to the UPF.

[0728] The UPF associates the uplink and downlink SDF / QoS flow / 5QI (PDB) based on the correlation ID and sends a correlation notification to the PCF / AF for the PCF / AF to initiate session modification (e.g., for the AF to update the bidirectional transmission delay requirement or for the PCF to update the uplink and / or downlink PCC rules / PDB).

[0729] The UPF monitors the delay QoS monitoring of the UL SDF / QoS flow / 5QI to meet the subscription event (Subscribe event) and needs to send a notification to the PCF / AF. The UPF also sends a delay QoS monitoring report of the DL SDF / QoS flow / 5QI identified by the correlation ID to the PCF / AF. The UPF sends the UL and DL QoS monitoring report to the PCF / AF; triggers the uplink and / or downlink PCC rule update; and optionally, the PCF authorizes a new uplink / downlink PDB, and the PCC rules correspond to the PDB (which can be new 5QIs corresponding to the PDB).

[0730] Step 1910: After receiving the QoS monitoring configuration, the UPF enables measurement and reporting. The UPF responds to the SMF.

[0731] Step 1911: For the modification required by the SMF, the SMF invokes Namf_Communication_N1N2MessageTransfer ([N2 SM information] (PDU session ID, QFI(s), QoS Profile(s), QoS monitoring configuration), N1 SM container)

[0732] Step 1912: The AMF can send N2 ([N2 SM information received from SMF], NAS message (PDU session ID, N1 SM container (PDU session modification command)) to the (R)AN. After receiving the QoS monitoring configuration, the RAN enables event measurement and reporting (e.g., the RAN detects UL latency and DL latency, and the sum of UL PDB and DL PDB as a bidirectional latency).

[0733] The RAN, based on the correlation identifier, correlates the uplink and downlink SDF / QoS flow / 5QI (PDB), sends a correlation notification to the PCF / AF, for the PCF / AF to initiate session modification (e.g., for the AF to update the bidirectional transmission latency requirement, or for the PCF to update the uplink and / or downlink PCC rule / PDB).

[0734] Further, the RAN monitors the latency QoS monitoring of the UL SDF / QoS flow / 5QI to meet the subscription event (Subscribe event), and needs to send a notification to the UPF, and the RAN simultaneously sends the latency QoS monitoring report of the DL SDF / QoS flow / 5QI identified by the correlation identifier to the UPF. The RAN sends the UL and DL QoS monitoring report to the UPF / PCF; triggers the uplink and / or downlink PCC rule update; optionally, the PCF authorizes a new uplink / downlink PDB, and the PCC rule corresponds to the PDB (which can select a new 5QI corresponding to the PDB).

[0735] Step 1913: The RAN performs configuration of transmission resources.

[0736] Step 1914: The RAN can confirm the N2 PDU session request by sending an N2 PDU session Ack message to the AMF.

[0737] Step 1915: The AMF forwards the N2 SM information received from the AN to the SMF through the “Nsmf_PDUSession_UpdateSMContext request” service operation.

[0738] Step 1916: The SMF replies with “Nsmf_PDUSession_UpdateSMContext response”.

[0739] Steps 1917-1918: The SMF can update the N4 session of the UPF involved in the PDU session update by sending the “N4 Session Modification Request” message to the UPF. When the PCF receives the QoS monitoring report later, the PCF will process as follows:

[0740] The PCF adjusts the uplink and / or downlink PCC rules (such as UL PDB and / or DL PDB, UL 5QI and / or DL 5QI) based on the QoS monitoring report. The PCF can directly trigger the PCC rule update, or the PCF notifies the QoS monitoring report to the AF for the AF to trigger the PCC rule update.

[0741] Optionally, the PCF directly or indirectly triggers the PCC rule update. If the corresponding PDB can be updated, the updated PDB is assigned with the corresponding 5QI.

[0742] Optionally, the AF provides the bidirectional delay requirement information to the PCF. (The AF provides the requirement information to the PCF, which can be through the following procedures:

[0743] 1) The AF provides the bidirectional transmission delay requirement to the PCF during the AF session, and provides the required QoS parameters.

[0744] 2) The AF session procedure with the requirement QoS update procedure.

[0745] 3) The service specific parameter configuration procedure.

[0746] 4) The procedure for configuring the policy for the subsequent AF session.

[0747] The AF provides the bidirectional delay requirement information to the PCF, which can be directly sent to the AF or indirectly sent to the AF. The indirect sending includes:

[0748] 1) sent to the PCF through the NEF,

[0749] 2) sent to the PCF through the TSCTSF,

[0750] 3) sent to the PCF through the TSCTSF and the NEF.

[0751] The procedure for the QoS monitoring report to the AF can adopt the user plane notification procedure from the UPF to the AF as shown in Figure 20 or the control plane procedure from the UPF to the SMF to the PCF.

[0752] The order of the steps listed in the above embodiments is not used to limit the execution order of the steps. The steps can be executed in the order listed in the steps, or can be executed in a different order without contradiction. The steps can be implemented as a separate embodiment without contradiction, or a plurality of steps can be combined together as an embodiment.

[0753] Figure 20 The procedure for notifying the information includes the following steps:

[0754] Step 2001: When the event is detected / reached, the report will be triggered (such as reaching the threshold, or the periodic timer expires), the UPF triggers the "Nupf_EventExposure_Notify" message to report the measurement information

[0755] Step 2002: The UPF sends the Nupf_EventExposure_Notify message (measurement bidirectional delay budget state information) to the NEF. The UPF reports the QoS delay monitoring report to the AF (through the NEF) to trigger the corresponding session update, or the UPF sends the QoS delay monitoring report to the PCF (through the SMF) for the PCF to trigger the rule update. The PCF reports to the AF to trigger the update or the PCF locally triggers the update; see the corresponding rule update description in Figure X

[0756] Step 2003: The NEF sends the "Nnef_Nnef_EventExposure_Notify" (measured bidirectional delay budget state information) information to the AF.

[0757] The order of the steps listed in the above embodiments is not used to limit the execution order of each step, and each step can be executed in the order listed in each step, or can be executed in an order different from the order listed in each step without contradiction. Each step can be implemented as a separate embodiment without contradiction, or multiple steps can be combined together as an embodiment.

[0758] As shown in Figure 21 The present exemplary embodiment provides an information transmission device 100, which is arranged in a policy control function PCF, and includes:

[0759] A processing module 110 is configured to determine and send an associated identifier of a predetermined service, wherein the associated identifier is used to associate the transmission delay parameter of the uplink transmission of the predetermined service data flow and the transmission delay parameter of the downlink transmission.

[0760] In one embodiment, the associated identifier is sent by the PCF to a session management function SMF, and sent by the SMF to at least one of:

[0761] An access network device;

[0762] A user plane function UPF.

[0763] In one embodiment, the associated identifier is indicated by a policy control and charging PCC rule associated with the predetermined service.

[0764] In one embodiment, the device further includes:

[0765] ​The transceiver module 120 is configured to receive the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report after the sending of the associated identifier of the predetermined service, wherein the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are associated with the associated identifier.

[0766] The processing module 110 is further configured to update the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service based on the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report.

[0767] In an embodiment, the transceiver module 120 is further configured to send the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report to an AF associated with the predetermined service.

[0768] The transceiver module 120 is further configured to receive AF session update information sent by the AF in response to the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report.

[0769] The processing module 110 is further configured to update the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service based on the AF session update information.

[0770] In an embodiment, the transceiver module 120 is specifically configured to at least one of:

[0771] receive the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report sent by the UPF;

[0772] receive the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report sent by the access network device through the UPF.

[0773] In an embodiment, the apparatus further comprises:

[0774] The transceiver module 120 is configured to receive AF session update information sent by an application function (AF) associated with the predetermined service in response to the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report, wherein the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are sent by the UPF to the AF.

[0775] The processing module 110 is further configured to update the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service based on the AF session update information.

[0776] In an embodiment, the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are sent by the UPF and / or the access network device monitoring a transmission latency parameter of the uplink transmission, determining that the monitored transmission latency parameter of the uplink transmission satisfies an uplink subscription event triggering condition, and determining the associated QoS latency monitoring report of the downlink transmission to be sent by the association identifier.

[0777] and / or

[0778] The QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are sent by the UPF and / or the access network device monitoring a transmission latency parameter of the downlink transmission, determining that the monitored transmission latency parameter of the downlink transmission satisfies a downlink subscription event triggering condition, and determining the associated QoS latency monitoring report of the uplink transmission to be sent by the association identifier.

[0779] In an embodiment, the updating the PCC rule of the predetermined service uplink transmission comprises: updating a packet unit delay budget PDB parameter and / or a packet unit set delay budget PSDB parameter in the PCC rule of the predetermined service uplink transmission.

[0780] The updating the PCC rule of the predetermined service downlink transmission comprises: updating a PDB parameter and / or a PSDB parameter in the PCC rule of the predetermined service downlink transmission.

[0781] In an embodiment, the determining the association identifier of the predetermined service comprises:

[0782] The association identifier is determined based on at least one of the following:

[0783] A transmission latency parameter of a bidirectional transmission of the predetermined service data flow;

[0784] Subscription information associated with the predetermined service;

[0785] An operator policy associated with the predetermined service.

[0786] In an embodiment, the processing module 110 is further configured to:

[0787] Determine a transmission latency parameter of the data flow uplink transmission and / or a transmission latency parameter of the data flow downlink transmission based on a transmission latency parameter of a bidirectional transmission of the predetermined service data flow.

[0788] In an embodiment, the predetermined service comprises at least one of the following:

[0789] An enhanced reality multimedia XRM service;

[0790] Multi-modal service.

[0791] As Figure 22 shown in the figure, the present exemplary embodiment provides an information transmission apparatus 200, which is arranged in an application function (AF), comprising:

[0792] a transceiver module 210, configured to send a transmission delay parameter of a predetermined service bidirectional transmission to a policy control function (PCF), wherein the transmission delay parameter of the bidirectional transmission is used for the PCF to determine an association identifier of the predetermined service, and wherein the transmission delay parameter of the predetermined service data stream uplink transmission is associated with the transmission delay parameter of the predetermined service data stream downlink transmission.

[0793] In one embodiment, the association identifier is sent by the PCF to at least one of the following: an access network device; a user plane function (UPF); and a session management function (SMF).

[0794] In one embodiment, the association identifier is carried in a policy control and charging (PCC) rule associated with the predetermined service, which is sent by the PCF to the SMF.

[0795] In one embodiment, the transceiver module 210 is further configured to receive a quality of service (QoS) delay monitoring report of the uplink transmission and a QoS delay monitoring report of the downlink transmission sent by the UPF or the PCF.

[0796] In one embodiment, the apparatus further comprises a processing module 220, configured to:

[0797] determine whether to send an AF session update information to the PCF based on at least the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission.

[0798] In one embodiment, the AF session update information is used for the PCF to update a PCC rule of the predetermined service uplink transmission and / or a PCC rule of the predetermined service downlink transmission.

[0799] In one embodiment, the AF session update information is used to indicate that a packet unit delay budget (PDB) parameter and / or a packet unit set delay budget (PSDB) parameter in the PCC rule of the predetermined service uplink transmission are updated and / or a PDB parameter and / or a PSDB parameter in the PCC rule of the predetermined service downlink transmission are updated.

[0800] In one embodiment, the transceiver module 210 is specifically configured to receive the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission sent by the UPF through a network exposure function (NEF);

[0801] and / or

[0802] The transceiver module 210 is specifically configured to receive the uplink transmission quality of service (QoS) delay monitoring report and the downlink transmission QoS delay monitoring report sent by the PCF through the NEF.

[0803] In one embodiment, the transmission delay parameter of the bidirectional transmission of the predetermined service data flow is used for the PCF to determine the transmission delay parameter of the data flow uplink transmission and / or the transmission delay parameter of the data flow downlink transmission.

[0804] In one embodiment, the transceiver module 210 is specifically configured to at least one of:

[0805] send the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF through the NEF;

[0806] send the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF through the TSC TSCF;

[0807] send the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF through the NEF via the TSC TSCF.

[0808] As shown in Figure 23 The present exemplary embodiment provides an information transmission device 300, which is arranged in a user plane function (UPF) and includes:

[0809] A transceiver module 310 is configured to receive an associated identifier of a predetermined service, wherein the associated identifier is used to associate the transmission delay parameter of the data flow uplink transmission and the transmission delay parameter of the data flow downlink transmission of the predetermined service.

[0810] In one embodiment, the associated identifier is indicated by the policy control and charging (PCC) rule of the predetermined service sent by the policy control function (PCF) to the session management function (SMF).

[0811] In one embodiment, the transceiver module 310 is further configured to at least one of:

[0812] send the uplink transmission quality of service (QoS) delay monitoring report and the downlink transmission QoS delay monitoring report to the PCF;

[0813] send the uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report to the AF associated with the predetermined service;

[0814] The uplink transmission QoS delay monitoring report and the downlink transmission QoS delay monitoring report are associated by using the associated identifier.

[0815] In an embodiment, the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are for the UPF and / or the access network device to monitor the transmission latency parameter of the uplink transmission, and determine that the monitored transmission latency parameter of the uplink transmission meets a first uplink subscription event trigger condition, and determine to send the associated QoS latency monitoring report of the downlink transmission through the association identifier.

[0816] and / or

[0817] The QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are for the UPF and / or the access network device to monitor the transmission latency parameter of the downlink transmission, and determine that the monitored transmission latency parameter of the downlink transmission meets a first downlink subscription event trigger condition, and determine to send the associated QoS latency monitoring report of the uplink transmission through the association identifier.

[0818] As Figure 24 shown, the present exemplary embodiment provides an information transmission device 400, which is arranged in an access network device, comprising:

[0819] a transceiver module 410, configured to receive an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission latency parameter of an uplink transmission of a service data flow of the predetermined service and a transmission latency parameter of a downlink transmission.

[0820] In an embodiment, the association identifier is indicated by a policy control and charging (PCC) rule associated with the predetermined service sent by a policy control function (PCF) to a session management function (SMF).

[0821] In an embodiment, the transceiver module 410 is further configured to:

[0822] send, to the PCF through the UPF, a quality of service (QoS) latency monitoring report of the uplink transmission and a QoS latency monitoring report of the downlink transmission, wherein the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are associated by using the association identifier.

[0823] In an embodiment, wherein the QoS latency monitoring report of the uplink transmission and the QoS latency monitoring report of the downlink transmission are for the PCF to update a PCC rule of the uplink transmission of the predetermined service and / or a PCC rule of the downlink transmission of the predetermined service.

[0824] In an embodiment, the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are that the access network device monitors a transmission delay parameter of the uplink transmission, determines that the monitored transmission delay parameter of the uplink transmission meets a second uplink subscription event triggering condition, and determines the sending of the associated QoS delay monitoring report of the downlink transmission through the association identifier.

[0825] and / or,

[0826] The QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are that the access network device monitors a transmission delay parameter of the downlink transmission, determines that the monitored transmission delay parameter of the downlink transmission meets a second downlink subscription event triggering condition, and determines the sending of the associated QoS delay monitoring report of the uplink transmission through the association identifier.

[0827] In an embodiment, the updating the PCC rule of the predetermined service uplink transmission comprises: updating a packet unit delay budget PDB parameter and / or a packet unit set delay budget PSDB parameter in the PCC rule of the predetermined service uplink transmission.

[0828] The updating the PCC rule of the predetermined service downlink transmission comprises: updating a PDB parameter and / or a PSDB parameter in the PCC rule of the predetermined service downlink transmission.

[0829] Embodiments of the present disclosure provide a communication device, comprising:

[0830] a processor;

[0831] a memory for storing processor-executable instructions;

[0832] wherein the processor is configured to implement the information transmission method of any of the embodiments of the present disclosure when running the executable instructions.

[0833] In an embodiment, the communication device can include but is not limited to at least one of: a UE and a network device. Here, the network device can include a core network or an access network device, etc. Here, the access network device can include a base station; the core network can include an AMF, an SMF.

[0834] The processor can include various types of storage media, which is a non-transitory computer storage medium, and can continue to store information on it after the user equipment is powered off.

[0835] The processor can be connected with the memory through a bus or the like, for reading the executable program stored on the memory, for example, at least one of the methods shown in Figures 2 to 20 ​

[0836] The embodiments of the present disclosure further provide a computer storage medium, which stores a computer executable program. The executable program is executed by a processor to implement the information transmission method of any of the embodiments of the present disclosure. For example, at least one of the methods shown in Figures 2 to 20 .

[0837] As to the apparatus or the storage medium in the above embodiments, the specific manners in which various modules perform operations have been described in detail in the embodiments of the method, and thus will not be described in detail here.

[0838] The embodiments of the present disclosure further provide a core network device, which executes at least one of the information transmission methods of any of the embodiments of the present disclosure, for example, at least one of the methods shown in Figures 2 to 20 .

[0839] For example:

[0840] The core network device receives a transmission delay parameter of bidirectional transmission of a predetermined service sent by an AF,

[0841] The core network device determines an association identifier of the predetermined service according to the transmission delay parameter of bidirectional transmission of the predetermined service, wherein the association identifier is used to associate the transmission delay parameter of uplink transmission and the transmission delay parameter of downlink transmission of the predetermined service data stream.

[0842] The core network device sends the association identifier to an access network device.

[0843] As to the core network device in the above embodiments, the specific manners in which various network elements perform operations have been described in detail in the embodiments of the method, and thus will not be described in detail here.

[0844] Figure 25 is a block diagram of a user equipment 3000 according to an exemplary embodiment. For example, the user equipment 3000 can be a mobile phone, a computer, a digital broadcast user equipment, a messaging equipment, a game console, a tablet equipment, a medical equipment, a fitness equipment, a personal digital assistant, etc.

[0845] Referring to Figure 25 , the user equipment 3000 can include one or more of the following components: a processing component 3002, a memory 3004, a power supply component 3006, a multimedia component 3008, an audio component 3010, an input / output (I / O) interface 3012, a sensor component 3014, and a communication component 3016.

[0846] The processing component 3002 generally controls the overall operations of the user equipment 3000, such as operations associated with display, telephony, data communication, camera, and recording operations. The processing component 3002 can include one or more processors 3020 to execute instructions, to complete all or part of steps of the methods described above. In addition, the processing component 3002 can include one or more modules to facilitate interaction between the processing component 3002 and other components. For example, the processing component 3002 can include a multimedia module to facilitate the interaction between the multimedia component 3008 and the processing component 3002.

[0847] The memory 3004 is configured to store various types of data to support operations of the user equipment 3000. Examples of these data include instructions for any application or method operating on the user equipment 3000, contact data, phonebook data, messages, pictures, videos, and so on. The memory 3004 can be implemented by any type of volatile or non-volatile storage devices or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disks, or optical disks.

[0848] The power supply component 3006 supplies electrical power for the various components of the user equipment 3000. The power supply component 3006 can include a power supply management system, one or more power supplies, and other components associated with generating, managing, and distributing electrical power for the user equipment 3000.

[0849] The multimedia component 3008 includes a screen providing an output interface between the user equipment 3000 and the user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes the touch panel, the screen can be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense a touch, a slide, and a gesture on the touch panel. The touch sensors can not only sense a boundary of a touching or sliding action, but also detect duration and pressure related to the touching or sliding action. In some embodiments, the multimedia component 3008 includes a front camera and / or a rear camera. The front camera and / or the rear camera can receive external multimedia data if the user equipment 3000 is in an operation mode, such as a shooting mode or a video mode. Each of the front and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0850] The audio component 3010 is configured to output and / or input audio signals. For example, the audio component 3010 includes a microphone (MIC) that is configured to receive an external audio signal when the user device 3000 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 3004 or transmitted via the communication component 3016. In some embodiments, the audio component 3010 also includes a speaker for outputting audio signals.

[0851] The I / O interface 812 provides an interface between the processing component 3002 and peripheral interface modules, which can be a keypad, a click wheel, buttons, and the like. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0852] The sensor component 3014 includes one or more sensors for providing various state assessments for the user device 3000. For example, the sensor component 3014 can detect an open / closed state of the user device 3000, relative positioning of components, such as a display and a keypad of the user device 3000, a change in position of the user device 3000 or a component of the user device 3000, presence or absence of user contact with the user device 3000, orientation or acceleration / deceleration / g-force and a temperature change of the user device 3000. The sensor component 3014 can include an accelerometer, a gyroscope, a geomagnetic sensor, a pressure sensor, or a temperature sensor.

[0853] The communication component 3016 is configured to facilitate wired or wireless communication between the user device 3000 and another device. The user device 3000 can access a wireless network based on a communication standard, such as WiFi, 4G, or 5G, or a combination thereof. In an example embodiment, the communication component 3016 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an example embodiment, the communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technology.

[0854] In exemplary embodiments, the user equipment 3000 can be implemented with one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components, for performing the above-described methods.

[0855] In exemplary embodiments, a non-transitory computer readable storage medium including instructions, such as the memory 3004 including instructions, is also provided, which can be executed by the processor 3020 of the user equipment 3000 to complete the above-described methods. For example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, etc.

[0856] Figure 26 As shown, an embodiment of the present disclosure shows a structure of a base station. For example, the base station 900 can be provided as a network side device. Referring to Figure 26 The base station 900 includes a processing component 922, which further includes one or more processors, and a memory resource represented by a memory 932, for storing instructions, such as application programs, executable by the processing component 922. The application programs stored in the memory 932 can include one or more than one module each corresponding to a set of instructions. In addition, the processing component 922 is configured to execute the instructions to perform any of the above-described methods of the aforementioned applications at the base station.

[0857] The base station 900 can also include a power supply component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input output (I / O) interface 958. The base station 900 can operate based on an operating system stored in the memory 932, such as Windows Server TM, Mac OS X TM, Unix TM, Linux TM, FreeBSD TM, or the like.

[0858] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the present disclosure cover any and all variations of the present application which come within the scope of the claims and their equivalents. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the application indicated by the following claims.

[0859] It should be understood that the application is not limited to the precise construction which has been described above and which shown in the drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application should be limited only by the appended claims.

Claims

1. A method of information transmission, wherein, The method is applied to a policy control function (PCF) and comprises the following steps: determining and sending an associated identifier of a predetermined service, wherein the associated identifier is used to associate a transmission delay parameter of uplink transmission of the predetermined service data stream and a transmission delay parameter of downlink transmission; wherein, after the sending of the associated identifier of the predetermined service, the method further comprises the following steps: receiving a quality of service (QoS) delay monitoring report of the uplink transmission and a QoS delay monitoring report of the downlink transmission, wherein the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are associated by using the associated identifier; updating a PCC rule of the uplink transmission of the predetermined service and / or a PCC rule of the downlink transmission of the predetermined service based on the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission.

2. The method of claim 1, wherein, The updating of the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service based on the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission comprises the following steps: sending the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to an application function (AF) associated with the predetermined service; receiving AF session update information sent by the AF in response to the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission; updating the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service based on the AF session update information.

3. The method of claim 1, wherein, The receiving of the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission comprises at least one of the following steps: receiving the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission sent by a UPF; receiving the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission sent by an access network device through the UPF.

4. The method of claim 1, wherein, The method further comprises the following steps: receiving AF session update information sent by an application function (AF) associated with the predetermined service in response to the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission, wherein the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are sent by a UPF to the AF; updating the PCC rule of the uplink transmission of the predetermined service and / or the PCC rule of the downlink transmission of the predetermined service based on the AF session update information.

5. The method according to any one of claims 1 to 4, wherein the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are sent by the UPF and / or an access network device monitoring a transmission delay parameter of the uplink transmission, determining that the monitored transmission delay parameter of the uplink transmission meets an uplink subscription event triggering condition, and determining the QoS delay monitoring report of the downlink transmission associated by using the associated identifier; and / or ​ The QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are monitored by the UPF and / or the access network device for the transmission delay parameter of the downlink transmission, it is determined that the monitored transmission delay parameter of the downlink transmission meets the downlink subscription event triggering condition, and the associated QoS delay monitoring report of the uplink transmission is sent through the association identifier.

6. The method of any of claims 1-4, wherein, The updating the PCC rule of the predetermined service uplink transmission comprises updating a packet delay budget (PDB) parameter and / or a packet set delay budget (PSDB) parameter in the PCC rule of the predetermined service uplink transmission. The updating the PCC rule of the predetermined service downlink transmission comprises updating a PDB parameter and / or a PSDB parameter in the PCC rule of the predetermined service downlink transmission.

7. The method according to any one of claims 1 to 4, wherein, The association identifier is sent by the PCF to a session management function (SMF) and by the SMF to at least one of: an access network device; a user plane function (UPF).

8. The method of any of claims 1-4, wherein, The association identifier is indicated by a policy control and charging (PCC) rule associated with the predetermined service.

9. The method according to any one of claims 1 to 4, wherein, The determining the association identifier of the predetermined service comprises: determining the association identifier based at least on at least one of: a transmission delay parameter of a bidirectional transmission of the predetermined service data flow; subscription information associated with the predetermined service; an operator policy associated with the predetermined service.

10. The method according to any one of claims 1 to 4, wherein, The method further comprises determining a transmission delay parameter of the data flow uplink transmission and / or a transmission delay parameter of the data flow downlink transmission based on a transmission delay parameter of a bidirectional transmission of the predetermined service data flow.

11. The method according to any one of claims 1 to 4, wherein, The predetermined service comprises at least one of: an enhanced reality multimedia (XRM) service; a multi-modal service.

12. An information transmission method, wherein, The method is applied to an application function (AF) and comprises: sending, to a policy control function (PCF), a transmission delay parameter of a bidirectional transmission of a predetermined service, wherein the transmission delay parameter of the bidirectional transmission is used by the PCF to determine an association identifier of the predetermined service, wherein the association identifier is used to associate a transmission delay parameter of a data flow uplink transmission and a transmission delay parameter of a data flow downlink transmission of the predetermined service; receiving, from a user plane function (UPF) or the PCF, a quality of service (QoS) delay monitoring report of the uplink transmission and a QoS delay monitoring report of the downlink transmission, wherein the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are associated using the association identifier.

13. The method of claim 12, wherein, The method further comprises: determining, based at least on the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission, whether to send AF session update information to the PCF.

14. The method of claim 12, wherein, The receiving the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission sent by the PCF comprises: receiving the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission sent by the PCF through the NEF. The receiving the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission sent by the PCF comprises: receiving the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission sent by the PCF through the NEF.

15. The method according to any one of claims 12 to 14, wherein, The association identifier is sent by the PCF to at least one of the following: an access network device; a user plane function (UPF) through a session management function (SMF).

16. The method of claim 15, wherein, The association identifier is carried in the policy control and charging (PCC) rule of the predetermined service association sent by the PCF to the SMF.

17. The method of any one of claims 12 to 14, wherein, The sending the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF comprises at least one of the following: The sending the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF through the NEF; The sending the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF through a time sensitive communication time synchronization function (TSCTSF); The sending the transmission delay parameter of the bidirectional transmission of the predetermined service to the PCF through the NEF via the TSCTSF.

18. An information transmission method, wherein, Applied to a user plane function (UPF), comprising: Receiving an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission delay parameter of an uplink transmission and a transmission delay parameter of a downlink transmission of the predetermined service data flow; The method further comprises at least one of the following: Sending the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to the PCF; Sending the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to an AF associated with the predetermined service; The QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are associated by using the association identifier.

19. The method of claim 18, wherein, The QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are monitored by the UPF and / or an access network device, and it is determined that the monitored transmission delay parameter of the uplink transmission meets a first uplink subscription event trigger condition, and the QoS delay monitoring report of the downlink transmission associated by the association identifier is determined to be sent; And / or The QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are monitored by the UPF and / or an access network device, and it is determined that the monitored transmission delay parameter of the downlink transmission meets a first downlink subscription event trigger condition, and the QoS delay monitoring report of the uplink transmission associated by the association identifier is determined to be sent.

20. The method of claim 18 or 19, wherein the association identifier is indicated by policy control and charging (PCC) rules associated with the predetermined service sent by a policy control function (PCF) to a session management function (SMF). Applied to an access network device, comprising:

21. An information transmission method, wherein, receiving an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission delay parameter of uplink transmission and a transmission delay parameter of downlink transmission of the predetermined service data flow; sending, by the UPF, a quality of service (QoS) delay monitoring report of the uplink transmission and a QoS delay monitoring report of the downlink transmission to the PCF, wherein the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are associated by using the association identifier.

22. The method of claim 21, wherein the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are sent by the access network device monitoring the transmission delay parameter of the uplink transmission, determining that the monitored transmission delay parameter of the uplink transmission meets a second uplink subscription event triggering condition, and determining the associated QoS delay monitoring report of the downlink transmission by using the association identifier. and / or, the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are sent by the access network device monitoring the transmission delay parameter of the downlink transmission, determining that the monitored transmission delay parameter of the downlink transmission meets a second downlink subscription event triggering condition, and determining the associated QoS delay monitoring report of the uplink transmission by using the association identifier.

23. The method of claim 21 or 22, wherein the association identifier is indicated by policy control and charging (PCC) rules associated with the predetermined service sent by a policy control function (PCF) to a session management function (SMF). Applied to a policy control function (PCF), comprising: a processing module configured to determine and send an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission delay parameter of uplink transmission and a transmission delay parameter of downlink transmission of the predetermined service data flow; a transceiver module configured to receive a quality of service (QoS) delay monitoring report of the uplink transmission and a QoS delay monitoring report of the downlink transmission, wherein the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are associated by using the association identifier; 24. An information transmission apparatus, wherein, the processing module is further configured to update a PCC rule of the uplink transmission of the predetermined service and / or a PCC rule of the downlink transmission of the predetermined service based on the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission. Applied to an application function (AF), comprising: a transceiver module configured to send a transmission delay parameter of bidirectional transmission of a predetermined service to a policy control function (PCF), wherein the transmission delay parameter of the bidirectional transmission is used for the PCF to determine an association identifier of the predetermined service, wherein the association identifier is used to associate a transmission delay parameter of uplink transmission and a transmission delay parameter of downlink transmission of the predetermined service data flow; ​ 25. An information transmission apparatus, wherein, ​ ​ The transceiver module is further configured to receive a quality of service (QoS) delay monitoring report of the uplink transmission and a QoS delay monitoring report of the downlink transmission sent by a user plane function (UPF) or a PCF, wherein the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are associated with the association identifier.

26. An information transmission apparatus, wherein, Applied to a user plane function (UPF), comprising: a transceiver module configured to receive an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission delay parameter of uplink transmission and a transmission delay parameter of downlink transmission of a predetermined service data stream; The transceiver module is further configured to perform at least one of the following: sending the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to a PCF; sending the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to an AF associated with the predetermined service; The QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are associated with the association identifier.

27. An information transmission apparatus, wherein, Applied to an access network device, comprising: a transceiver module configured to receive an association identifier of a predetermined service, wherein the association identifier is used to associate a transmission delay parameter of uplink transmission and a transmission delay parameter of downlink transmission of a predetermined service data stream; The transceiver module is further configured to send the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission to a PCF through a UPF, wherein the QoS delay monitoring report of the uplink transmission and the QoS delay monitoring report of the downlink transmission are associated with the association identifier.

28. A communications device, comprising: The communication device, comprising: a processor; a memory for storing executable instructions of the processor; The processor is configured to implement the information transmission method of any one of claims 1-11, 12-17, 18-20, or 21-23 when the executable instructions are executed.

29. A computer storage medium, wherein, The computer storage medium stores a computer executable program, and the executable program is executed by the processor to implement the information transmission method of any one of claims 1-11, 12-17, 18-20, or 21-23.

30. A core network device, wherein, The core network device comprises a policy control function (PCF) and a user plane function (UPF), wherein the PCF is configured to implement the information transmission method of any one of claims 1-11, and the UPF is configured to implement the information transmission method of any one of claims 18-20.

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