CN117896813A

CN117896813A - Data stream transmission method, device, electronic equipment and storage medium

Info

Publication number: CN117896813A
Application number: CN202211229464.0A
Authority: CN
Inventors: 简梦真; 刘海; 龙彪
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2024-04-16

Abstract

The disclosure provides a data stream synchronous transmission method, a device, electronic equipment and a storage medium, and relates to the technical field of wireless communication. The method is performed by an AF network element and comprises the following steps: the AF network element establishes synchronous transmission request information, wherein the synchronous transmission request information comprises a plurality of stream description information and a plurality of group level identification information; and the PCF network element is used for generating a group-level processing strategy according to the synchronous transmission request information and transmitting the group-level processing strategy to the RAN, and the group-level processing strategy is used for indicating the RAN to synchronously transmit a plurality of target data streams. Thus, the present disclosure can ensure that a plurality of target data streams belonging to a data stream that will need to be synchronously transmitted are synchronously transmitted to a user.

Description

Data stream transmission method, device, electronic equipment and storage medium

Technical Field

The disclosure relates to the technical field of wireless communication, and in particular relates to a data stream synchronous transmission method, a device, electronic equipment and a storage medium.

Background

An XR (Extended Reality) service may be a real and virtual combined, human-machine interactive environment created by computer technology and wearable devices. In XR technology, various types of data streams are typically involved, such as video streams, audio streams, haptic data streams, and the like.

With the development of wireless communication technology, in order to improve the user experience of XR services, a data streaming method is required. The method can ensure that associated data streams belonging to the same XR service are synchronously transmitted to users in the downlink.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The present disclosure provides a data stream transmission method, apparatus, electronic device, and storage medium, which can synchronously transmit associated data streams belonging to the same XR service to a user at least to a certain extent.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to an aspect of the embodiments of the present disclosure, there is provided a data streaming method, the method being performed by an AF (Application Function ) network element, the method comprising:

the AF network element establishes synchronous transmission request information, wherein the synchronous transmission request information comprises a plurality of stream description information and a plurality of group level identification information;

The synchronous transmission request information is sent to a PCF (Policy Control Function ) network element, the PCF network element is used for generating a group level processing policy according to the synchronous transmission request information, the group level processing policy is sent to a RAN (Radio Access Network ), and the group level processing policy is used for indicating the RAN to synchronously transmit a plurality of target data streams.

In some embodiments of the present disclosure, any one of the stream description information is used to describe one of the target data streams, and any one of the group level identification information is used to indicate that the corresponding target data stream needs to be synchronously transmitted. In some embodiments of the present disclosure, the synchronous transmission request information further includes key data flow information, where the key data flow information is used to indicate a key data flow in the multiple target data flows; and the group-level processing strategy generated by the PCF network element is also used for indicating the RAN to perform group-level admission control processing and group-level resource reservation processing on a plurality of target data flows according to the key data flow information.

In some embodiments of the present disclosure, the synchronization transmission request information further includes Qos (Quality of Service ) parameters of a plurality of target data flows, optional Qos configurations of the plurality of target data flows, and a correspondence between the optional Qos configurations of the plurality of target data flows, where the correspondence between the optional Qos configurations of the plurality of target data flows is used to adjust Qos parameters of the plurality of target data flows received by the RAN.

In some embodiments of the present disclosure, the synchronous transmission request information further includes a plurality of lot identification information, where any lot identification information corresponds to one target data stream, and the lot identification information is used to indicate an established lot of the corresponding target data stream.

In some embodiments of the present disclosure, the synchronous transmission request information further includes an AF identifier and at least one UE (User equipment) identifier, where the AF identifier is used to indicate an AF network element that sends the synchronous transmission request information, and the UE identifier is used to indicate a receiver of a target data stream.

According to another aspect of the present disclosure, there is provided a data streaming method performed by a RAN, comprising:

receiving a group level processing strategy sent by a PCF network element, wherein the group level processing strategy is determined by the PCF network element according to synchronous transmission request information sent by an AF network element, and the group level processing strategy comprises a plurality of stream description information and a plurality of group level identification information; any one of the stream description information describes a target data stream, any one group of the group identification information corresponds to the target data stream, and the group identification information indicates that the corresponding target data stream needs to be synchronously transmitted;

And synchronously transmitting the plurality of target data streams according to the group-level processing strategy.

In some embodiments of the present disclosure, the group level processing policy further includes critical data flow information, where the critical data flow information is used to indicate a critical data flow of the plurality of target data flows; the step of synchronously transmitting the plurality of target data streams according to the group-level processing strategy comprises the following steps:

identifying a key data stream according to the key data stream information;

when synchronous transmission is carried out on a plurality of target data streams, group-level admission control processing and group-level resource reservation processing are carried out on the plurality of target data streams according to the key data stream information;

the group-level admission control process is used for completely releasing target data streams which need to be synchronously transmitted with a first key data stream when the admission of the first key data stream fails, wherein the first key data stream is any one of the key data streams;

and the group-level resource reservation processing is used for stopping the target data stream which needs to be synchronously transmitted with the first key data stream and distributing network resources when the resource reservation cannot be executed on the first key data stream.

In some embodiments of the present disclosure, the group-level processing policy further includes a correspondence between Qos parameters of the plurality of target data flows, optional Qos configurations of the plurality of target data flows, and optional Qos configurations between the plurality of target data flows; wherein the method further comprises:

When the Qos parameters of the first target data flow are degraded to the corresponding selectable Qos configurations, according to the correspondence of the selectable Qos configurations among the plurality of target data flows, the Qos parameters of the target data flows except the first target data flow are correspondingly adjusted to the corresponding selectable Qos configurations, wherein the first target data flow is any one of the plurality of target data flows.

According to another aspect of the present disclosure, there is provided a data streaming apparatus, which is applied to an AF network element, including:

the synchronous transmission request information establishing module is used for establishing synchronous transmission request information by the AF network element, wherein the synchronous transmission request information comprises a plurality of stream description information and a plurality of group level identification information;

the synchronous transmission request information sending module is used for sending the synchronous transmission request information to a PCF network element, the PCF network element is used for generating a group level processing strategy according to the synchronous transmission request information and sending the group level processing strategy to the RAN, and the group level processing strategy is used for indicating the RAN to synchronously transmit a plurality of target data streams.

In some embodiments of the present disclosure, any one of the stream description information is used to describe one of the target data streams, and any one of the group level identification information is used to indicate that the corresponding target data stream needs to be synchronously transmitted.

In some embodiments of the present disclosure, the synchronous transmission request information further includes key data flow information, where the key data flow information is used to indicate a key data flow in the multiple target data flows;

and the group-level processing strategy generated by the PCF network element is also used for indicating the RAN to perform group-level admission control processing and group-level resource reservation processing on a plurality of target data flows according to the key data flow information.

In some embodiments of the present disclosure, the synchronization transmission request information further includes Qos parameters of a plurality of target data flows, optional Qos configurations of the plurality of target data flows, and a correspondence between the optional Qos configurations of the plurality of target data flows, where the correspondence between the optional Qos configurations of the plurality of target data flows is used to adjust Qos parameters of the plurality of target data flows received by the RAN.

In some embodiments of the present disclosure, the synchronous transmission request information further includes a plurality of lot identification information, where any lot identification information corresponds to one target data stream, and the lot identification information is used to indicate a set up lot of the corresponding target data stream.

In some embodiments of the present disclosure, the synchronous transmission request information further includes an AF identifier and at least one UE identifier, where the AF identifier is used to indicate an AF network element that sends the synchronous transmission request information, and the UE identifier is used to indicate a receiver of the target data stream.

According to another aspect of the present disclosure, there is provided a data streaming apparatus, the apparatus being applied to a RAN, comprising:

the system comprises a group level processing strategy receiving module, a group level processing strategy processing module and a group level processing module, wherein the group level processing strategy receiving module is used for receiving a group level processing strategy sent by a PCF (physical state communication) network element, the group level processing strategy is determined by the PCF network element according to synchronous transmission request information sent by an AF (analog state communication) network element, and the group level processing strategy comprises a plurality of stream description information and a plurality of group level identification information; any one of the stream description information describes a target data stream, any one group of the group identification information corresponds to the target data stream, and the group identification information indicates that the corresponding target data stream needs to be synchronously transmitted;

and the synchronous transmission module is used for synchronously transmitting the plurality of target data streams according to the group-level processing strategy.

In some embodiments of the present disclosure, the group level processing policy further includes critical data flow information, where the critical data flow information is used to indicate a critical data flow of the plurality of target data flows; the synchronous transmission module is used for identifying the key data stream according to the key data stream information; when synchronous transmission is carried out on a plurality of target data streams, group-level admission control processing and group-level resource reservation processing are carried out on the plurality of target data streams according to the key data stream information; the group-level admission control process is used for completely releasing target data streams which need to be synchronously transmitted with a first key data stream when the admission of the first key data stream fails, wherein the first key data stream is any one of the key data streams; and the group-level resource reservation processing is used for stopping the target data stream which needs to be synchronously transmitted with the first key data stream and distributing network resources when the resource reservation cannot be executed on the first key data stream.

In some embodiments of the present disclosure, the group level processing policy further includes a Qos parameter of the plurality of target data flows, an optional Qos configuration of the plurality of target data flows, and a correspondence of the optional Qos configuration between the plurality of target data flows;

the apparatus further comprises: and the Qos parameter adjustment module is used for correspondingly adjusting Qos parameters of the target data flows except the first target data flow to the corresponding selectable QoS configuration according to the corresponding relation of the selectable QoS configuration among the plurality of target data flows when the Qos parameters of the first target data flow are degraded to the corresponding selectable QoS configuration, wherein the first target data flow is any one of the plurality of target data flows.

According to still another aspect of the present disclosure, there is provided an electronic apparatus including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the data streaming method described above via execution of the executable instructions.

According to yet another aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described data streaming method.

According to another aspect of the present disclosure, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The computer instructions are read from the computer-readable storage medium by a processor of a computer device, and executed by the processor, cause the computer device to perform the data streaming methods provided in the various alternatives in any of the embodiments of the disclosure.

According to the technical scheme provided by the embodiment of the disclosure, the AF network element can send the plurality of stream description information and the plurality of group level identification information to the PCF network element, and the PCF network element can send the group level processing strategy containing the plurality of stream description information and the plurality of group level identification information to the RAN. The RAN can determine a plurality of target data streams needing to be synchronously transmitted through the stream description information and the group-level identification information, so that the synchronous transmission of the plurality of target data streams needing to be synchronously transmitted to a user can be ensured.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

FIG. 1 illustrates a schematic diagram of an implementation environment of a data streaming method in an embodiment of the present disclosure;

FIG. 2 illustrates a flow chart of a data streaming method in an embodiment of the present disclosure;

FIG. 3 illustrates a flow chart of a data streaming method in an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a process for data streaming in an embodiment of the present disclosure;

fig. 5 is a schematic diagram of a data stream transmission device according to an embodiment of the disclosure;

fig. 6 is a schematic diagram of a data streaming device according to an embodiment of the disclosure;

fig. 7 shows a block diagram of an electronic device in an embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

For ease of understanding, the following first explains the several terms involved in this disclosure as follows:

UE: the english language collectively refers to User equipment, which may also be referred to as a terminal device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User equipment. The UE may also be a cellular phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a car-mounted device, a wearable device, a user device in a 5G network or in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc., as well as an end device, a logical entity, a smart device, a user device such as a cell phone, a smart terminal, etc., or a communication device such as a server, gateway, base station, controller, etc., or an internet of things device such as a sensor, an electricity meter, a water meter, etc., internet of things (Internet of Things, ioT) device. The embodiments of the present disclosure are not limited in this regard.

AF network element: english, which is called Application Function, translates into application functions, and refers to various services of an application layer, which can be applications inside an operator (such as Volte AF) or AF of a third party (such as a video server and a game server), if the services are AF inside the operator, the services and other NF (Network Function) are in a trusted domain, and can be directly interacted with other NF (e.g. PCF) to access, while the AF of the third party is not in the trusted domain and must access other NF through NEF.

RAN: the english language is known as Radio Access Network and is interpreted as radio access network. The radio access network comprises equipment including a base station and a radio network controller, and has the main function of controlling the user to access to the mobile communication network through the radio. The RAN is part of a mobile communication system. It implements a radio access technology. Conceptually, it resides between some device (such as a mobile phone, a computer, or any remote control) and provides connectivity to its core network. Mobile phones and other wireless connected devices are commonly referred to as user equipment, terminal equipment, mobile stations, etc., according to standards. The RAN typically provides the functionality that resides in the core network, and the user equipment of the user equipment chip is connected to the core network through the RAN.

SMF network element: english is called Session Management Function, translated into session management function, which can be used for session management, internet protocol (Internet Protocol, IP) address allocation and management of UE, terminal node of selecting manageable user plane function, policy control or charging function interface, and downstream data notification. In the embodiments of the present disclosure, the functions of the session management network element may be implemented.

PCF network element: english is called Policy Control Function, is translated into a strategy control function, can be used for guiding a unified strategy framework of network behaviors, and provides strategy rule information for control plane function network elements (such as SMF network elements and the like).

UPF network element: english is called User Plane Function, and is translated into user plane function, namely data plane gateway. Can be used for packet routing and forwarding, qoS processing of user plane data, etc. User Data may be accessed to a Data Network (DN) through the Network element. In the embodiment of the present disclosure, the function of the user plane gateway may be implemented.

NEF network element: english, which is called Network Exposure Function, translates to a network open function, is located between the 5G core network and an external third party application function (and possibly part of the internal AF), and is responsible for managing data to the external open network, and all external applications want to access the internal data of the 5G core network by passing through NEF network elements. The NEF network element provides corresponding security assurance to ensure the security of external application to a 3GPP (3 GPP rd Generation Partnership Project, third Generation partnership project) network, and provides functions of external application Qos customization capability opening, mobility state event subscription, AF request distribution and the like.

QoS: english is called Quality of Service, translates into service quality, and is a technology that a network can utilize various basic technologies to provide better service capability for specified network communication, is a security mechanism of the network, and is used for solving the problems of network delay, blocking and the like. Under normal circumstances, qoS, such as Web applications, or E-mail settings, etc., is not required if the network is only used for a particular time-unlimited application system. But are necessary for critical applications and multimedia applications. QoS ensures that important traffic is not delayed or dropped when the network is overloaded or congested, while ensuring efficient operation of the network. QoS is a main means for ensuring that users obtain predictable service levels in terms of packet loss, delay, jitter, bandwidth, etc., and is generally used to control network performance indexes such as bandwidth, delay, jitter, packet loss rate, etc. For example, voice requires a low bandwidth, low latency, low jitter network; the data traffic requires a network with high bandwidth and low packet loss rate; video traffic requires high bandwidth, low latency, low jitter networks, etc.

Fig. 1 is a schematic diagram illustrating an implementation environment of a data stream transmission method according to an embodiment of the disclosure.

As shown in fig. 1, an implementation environment of the data streaming method may include an AF network element 101, a PCF network element 102, and a RAN 103. Wherein the AF network element 101 may communicate with the PCF network element 102, and the RAN 103 may communicate with the PCF network element.

Illustratively, the AF network element 101 may create the synchronous transmission request information by the method provided by the embodiments of the present disclosure. And may send the synchronous transmission request information to PCF network element 102. The PCF network element 102 may generate a group level processing policy based on the synchronous transmission request information and send the group level processing policy to RAN 103. The RAN 103 may then synchronize the transmission of the plurality of target data streams through the set of level processing policies.

The AF network element 101 may correspond to an application within an operator, or may be an AF of a third party. The embodiments of the present disclosure do not limit the type of the AF network element.

RAN 103 may be a 5G base station (gNB) or other type of base station, and embodiments of the present disclosure are not limited to the type of RAN 103.

In addition, embodiments of the present disclosure also do not limit the type of PCF network element 102.

Those skilled in the art will appreciate that the number of AF network elements 101, PCF network elements 102, and RAN 103 in fig. 1 is merely illustrative, and that any number of AF network elements 101, PCF network elements 102, and RAN 103 may be provided as desired. The embodiments of the present disclosure are not limited in this regard.

The present exemplary embodiment will be described in detail below with reference to the accompanying drawings and examples.

First, a data stream transmission method is provided in an embodiment of the present disclosure, and the method may be performed by an AF network element.

Fig. 2 shows a flowchart of a data stream transmission method according to an embodiment of the present disclosure, and as shown in fig. 2, the data stream transmission method provided in the embodiment of the present disclosure includes the following steps S202 to S204.

S202, the AF network element establishes synchronous transmission request information, wherein the synchronous transmission request information comprises a plurality of stream description information and a plurality of group level identification information.

Illustratively, any one of the stream description information may describe one of the target data streams, and any one of the group level identification information may correspond to one of the target data streams, the group level identification information indicating that the corresponding target data stream needs to be synchronously transmitted.

The embodiments of the present disclosure are not limited to application scenarios, which may be performed for a user, for example, somatosensory games. Alternatively, the application scene may be a 4D (4D) movie for the user to view. The disclosed embodiments do not limit the recipients of the plurality of target data streams, for example, the recipients may be UEs, which may include smartphones, tablet computers, laptop computers, desktop computers, wearable devices, augmented reality devices, virtual reality devices, and the like.

Nor are embodiments of the present disclosure limited to the plurality of data streams, which may be determined based on the application scenario. For example, the application scenario may be a motion sensing game for a user, and the plurality of data streams may be a video data stream, a haptic data stream, and the like. Alternatively, when the application scene is a user watching a 4D movie, the plurality of data streams may be a video data stream, an auditory data stream, an olfactory data stream, or the like.

For example, since the AF network element may determine a plurality of target data flows that need to be synchronously transmitted, the AF network element may encapsulate Flow Description information (Flow Description) corresponding to the plurality of target data flows into synchronous transmission request information, so that the 5GS (5 g system) may learn about the plurality of target data flows that need to be synchronously transmitted. Illustratively, the 5GS may include a RAN, an SMF network element, an AMF network element, a PCF network element, and the like. The embodiment of the disclosure does not limit the form of the flow description information, and the flow description information can enable the 5GS to identify the corresponding target data flow.

For example, a plurality of target data streams that need to be synchronously transmitted may be referred to as a set of target data streams. In one possible embodiment, the group level identification information of a plurality of target data streams belonging to the same group may be the same. Nor is the embodiment of the disclosure limited to the form of the set of level identification information, which may identify target data streams belonging to the same set.

In some embodiments, the synchronous transmission request information may further include key data stream information, where the key data stream information indicates a key data stream of the plurality of target data streams. It should be noted that the number of the critical data stream information may be one or more, and at most, not exceed the total number of the target data streams.

In an exemplary embodiment, the critical data stream information may be used to indicate a critical data stream of the plurality of target data streams that is critical to the user experience. For example, for a 4D movie scene, the video data stream may be a critical data stream.

In some embodiments, the synchronization transmission request information further includes Qos parameters of the multiple target data flows, optional Qos configurations of the multiple target data flows, and a correspondence between the optional Qos configurations of the multiple target data flows, where the correspondence between the optional Qos configurations of the multiple target data flows is used to adjust Qos parameters of the multiple target data flows received by the RAN.

In an exemplary embodiment, the Qos parameter may be a Qos reference (Qos parameter). The Qos parameters may be mapped to different Qos configurations, respectively, which may include, for example, 5QI (5G QoS Identifier,5G quality of service identification), ARP (Allocation and Retention Priority, allocation and reservation priority), PDB (Packet Delay Budget ), and PER (Packet Error Rate packet error rate), etc.

In a possible implementation manner, the AF network element may encapsulate the Qos parameter into the synchronization transmission request information, so that the corresponding network element in 5GS may obtain Qos configurations such as 5QI, ARP, PDB and PER through the Qos parameter correspondence. So that the 5GS can meet Qos parameters of a set of multiple target data flows that need to be transmitted synchronously.

Illustratively, the optional QoS configuration may be AQP (Alternative QoS Profiles, optional QoS configuration), and any target data flow may correspond to one AQP. The embodiments of the present disclosure do not limit the form of correspondence of the optional QoS configuration between the plurality of target data flows.

In some embodiments, the synchronous transmission request information further includes a plurality of lot identification information, where any lot identification information corresponds to one target data stream, and the lot identification information is used to indicate an established lot of the corresponding target data stream. Nor are embodiments of the present disclosure limited to the form of the lot identification information.

For example, in order to be able to identify target data streams which are established by different batches and belong to the same group, batch identification information may be added to the synchronous transmission request information. The target data streams established by different batches and the quantity thereof can be identified through the batch identification information. Thus, the RAN can be further enabled to identify the target data stream that needs to be synchronously transmitted through the lot identification information, so as to ensure synchronous transmission.

In an exemplary embodiment, the group level identification information of the target data streams belonging to the same XR service is the same, but the lot identification information of the target data streams established in different lots is different.

In some embodiments, the synchronous transmission request information further includes an AF identifier and at least one user equipment UE identifier, where the AF identifier is used to indicate an AF network element that sends the synchronous transmission request information, and the UE identifier is used to indicate a receiver of the target data stream. Nor are embodiments of the present disclosure limited to the form of the AF identification and the UE identification.

In addition, the receivers of the target data streams belonging to the same group may be the same or different. Thus, different UE identities may be included in the synchronous transmission request information.

S204, the synchronous transmission request information is sent to the PCF network element, the PCF network element is used for generating a group level processing strategy according to the synchronous transmission request information, the group level processing strategy is sent to the RAN, and the group level processing strategy is used for indicating the RAN to synchronously transmit a plurality of target data streams.

Illustratively, the set of level processing policies may be in the form of PCC (Policy and Charging Control policy and charging control) rules.

In an exemplary embodiment, the group level processing policy may include a plurality of flow description information and a plurality of group level identification information included in the synchronous transmission request information. And, the set of processing strategies may further include at least one of AF identification, at least one UE identification, a plurality of lot identification information, qos parameters of a plurality of target data flows, a plurality of optional Qos configurations, correspondence between optional Qos configurations of a plurality of target data flows, and key data flow information. Alternatively, the PCF network element may be said to generate the group-level processing policy according to at least one of the plurality of flow description information and the plurality of group-level identification information contained in the synchronous transmission request information, and the AF identification, the at least one UE identification, the plurality of lot identification information, qos reference information parameters of the plurality of target data flows, the plurality of optional Qos configurations, correspondence between the optional Qos configurations between the plurality of target data flows, and the key data flow information.

Illustratively, when critical data stream information is also included in the synchronous transmission request information. The group level processing policy generated by the PCF network element may also be used to instruct the RAN to perform group level admission control processing and group level resource reservation processing on the plurality of target data flows according to the key data flow information. It should be noted that, the method of performing the group-level admission control process and the group-level resource reservation process on the plurality of target data flows herein may refer to the following step S304.

As shown in fig. 3, a data streaming method is provided in an embodiment of the present disclosure, which may be performed by a RAN. The data stream transmission method includes the following steps S302 to S304.

S302, receiving a group level processing strategy sent by a PCF network element, wherein the group level processing strategy is determined by the PCF network element according to synchronous transmission request information sent by an AF network element, and comprises a plurality of stream description information and a plurality of group level identification information; wherein, any stream description information describes a target data stream, any group of stage identification information corresponds to a target data stream, and the group stage identification information indicates that the corresponding target data stream needs to be synchronously transmitted.

S304, synchronously transmitting the plurality of target data streams according to the group-level processing strategy.

In some embodiments, critical data flow information may also be included in the group level processing policy, the critical data flow information being used to indicate a critical data flow of the plurality of target data flows.

In this case, according to the group level processing policy, the synchronous transmission of the plurality of target data streams includes: identifying the key data stream according to the key data stream information; and when the plurality of target data streams are synchronously transmitted, performing group-level admission control processing and group-level resource reservation processing on the plurality of target data streams according to the key data stream information.

The set of admission control processes is illustratively configured to release all of the target data streams that need to be synchronously transmitted with the first critical data stream, the first critical data stream being any one of the critical data streams, when the admission of the first critical data stream fails. And the group-level resource reservation processing is used for stopping the target data stream which needs to be synchronously transmitted with the first key data stream and allocating network resources when the resource reservation cannot be executed on the first key data stream.

In an exemplary embodiment, the group-level admission control process is that group-level admission control process is performed on a group of target data flows that need to be synchronously transmitted in a group unit. The key data stream is at least one target data stream which plays a key role in user experience in the plurality of target data streams. Therefore, when the admission of the first critical data stream fails, the RAN may consider other target data streams that need to be synchronously transmitted with the first critical data stream as the admission failure, and release all the target data streams that are currently established.

In an exemplary embodiment, the group-level resource reservation processing is to perform group-level resource reservation processing on a group of target data streams that need to be synchronously transmitted in a group unit. When the first critical data flow cannot allocate network resources due to poor network conditions, the RAN may not allocate network resources for other target data flows that need to be synchronously transmitted with the first critical data flow.

The embodiment of the disclosure can perform group-level admission control processing and group-level resource reservation processing through key data flow information, thereby improving the reliability of synchronous transmission.

In some embodiments, the group level processing policy further includes a correspondence between Qos parameters of the plurality of target data flows, optional Qos configurations of the plurality of target data flows, and optional Qos configurations between the plurality of target data flows.

In this case, the data stream transmission method provided by the embodiment of the present disclosure may further include: when the Qos parameters of the first target data flow are degraded to the corresponding selectable Qos configurations, according to the correspondence of the selectable Qos configurations among the plurality of target data flows, the Qos parameters of the target data flows except the first target data flow are correspondingly adjusted to the corresponding selectable Qos configurations, and the first target data flow is any one of the plurality of target data flows.

In an exemplary embodiment, the optional QoS configuration may be AQP. Any target data flow may correspond to a Qos parameter. For example, if the QoS parameters of a first target data flow in the target data flows are degraded to a first AQP, the RAN may correspondingly adjust the QoS parameters of a second target data flow in the target data flows to a second AQP according to the correspondence between the selectable QoS configurations of the plurality of target data flows. The first AQP and the second AQP are two AQPs having a corresponding relationship.

In some embodiments, after correspondingly adjusting the Qos parameters of the target data flows other than the first target data flow to the corresponding optional Qos configurations, a notification message may be sent to the SMF network element, the PCF network element, and the like, to inform the RAN that the Qos parameters of the target data flows other than the first target data flow are correspondingly adjusted.

The method provided by the embodiment of the disclosure can send the plurality of stream description information and the plurality of group level identification information to the PCF network element through the AF network element, and send the group level processing strategy containing the plurality of stream description information and the plurality of group level identification information to the RAN through the PCF network element. The RAN can determine a plurality of target data streams to be synchronously transmitted through the stream description information and the group level identification information, and perform corresponding group level processing so as to ensure that the plurality of target data streams to be synchronously transmitted are synchronously transmitted to a user.

In some embodiments, a schematic process of data streaming provided by an embodiment of the disclosure may be shown in fig. 4.

S402, the AF network element creates synchronous transmission request information.

S404, the AF network element sends synchronous transmission request information to the NEF network element.

And S406, the NEF network element authorizes the synchronous transmission request information.

And S408, the NEF network element sends synchronous transmission request information to the PCF network element.

S410, PCF network element generates group level processing strategy.

And S412, the PCF network element sends a group level processing strategy to the SMF network element.

S414, the SMF network element receives the group level processing policy and binds the group level processing policy to each target data flow.

S416, the SMF network element sends an N4 session modification request to the UPF network element.

S418, the UPF network element sends an N4 session modifying response to the SMF network element.

S420, the SMF network element sends a group level processing strategy to the AMF network element.

S422, the AMF network element sends a first N2 interface message to the RAN. Wherein the set of level processing policies may be included in the first N2 interface message.

S424, the RAN performs group level admission control processing.

S426, the RAN establishes resources with the UE. Illustratively, during the process of establishing resources, the RAN may perform group level resource reservation processing.

S428, the RAN sends a second N2 interface message to the AMF network element. The second N2 interface message may include information that the RAN and the UE have established resources.

S430, the RAN satisfies the group level Qos parameters. Illustratively, the Qos parameters of each target data flow are included in the set of level processing policies. And the RAN needs to meet Qos parameters of the respective target data flows.

S432, qos parameter notification control. For example, after the RAN performs corresponding adjustment on QoS parameters of the target data flows according to the correspondence between optional QoS configurations of the plurality of target data flows included in the group-level processing policy, a notification message may be sent to inform the RAN that the QoS parameters are correspondingly adjusted.

Based on the same inventive concept, the embodiments of the present disclosure also provide a data stream transmission device, as described in the following embodiments. Since the principle of solving the problem of the embodiment of the device is similar to that of the embodiment of the method, the implementation of the embodiment of the device can be referred to the implementation of the embodiment of the method, and the repetition is omitted.

Fig. 5 shows a schematic diagram of a data stream transmission device in an embodiment of the disclosure, where the device may be applied to an AF network element. As shown in fig. 5, the apparatus includes:

a synchronous transmission request information establishing module 501, configured to establish synchronous transmission request information by an AF network element, where the synchronous transmission request information includes a plurality of flow description information and a plurality of group level identification information;

The synchronous transmission request information sending module 502 is configured to send synchronous transmission request information to a PCF network element, where the PCF network element is configured to generate a group level processing policy according to the synchronous transmission request information, and send the group level processing policy to the RAN, where the group level processing policy is configured to instruct the RAN to perform synchronous transmission on multiple target data flows.

In some embodiments of the present disclosure, the synchronous transmission request information further includes key data stream information, where the key data stream information is used to indicate a key data stream of the plurality of target data streams; the group-level processing strategy generated by the PCF network element is also used for indicating the RAN to perform group-level admission control processing and group-level resource reservation processing on a plurality of target data flows according to the key data flow information.

Fig. 6 shows a schematic diagram of a data streaming apparatus in an embodiment of the disclosure, which may be applied to a RAN. As shown in fig. 6, the apparatus includes:

a group level processing policy receiving module 601, configured to receive a group level processing policy sent by a PCF network element, where the group level processing policy is determined by the PCF network element according to synchronous transmission request information sent by an AF network element, and the group level processing policy includes a plurality of flow description information and a plurality of group level identification information; wherein, any stream description information describes a target data stream, any group of stage identification information corresponds to a target data stream, and the group stage identification information indicates that the corresponding target data stream needs to be synchronously transmitted;

and the synchronous transmission module 602 is configured to perform synchronous transmission on the plurality of target data streams according to the group-level processing policy.

In some embodiments of the present disclosure, the group level processing policy further includes key data flow information, where the key data flow information is used to indicate a key data flow of the plurality of target data flows; the synchronous transmission module 602 is configured to identify a key data stream according to the key data stream information; when synchronous transmission is carried out on a plurality of target data streams, group-level admission control processing and group-level resource reservation processing are carried out on the plurality of target data streams according to key data stream information; the group-level admission control processing is used for completely releasing target data streams which need to be synchronously transmitted with the first key data stream when the admission of the first key data stream fails, wherein the first key data stream is any one of the key data streams; and the group-level resource reservation processing is used for stopping the target data stream which needs to be synchronously transmitted with the first key data stream and distributing network resources when the resource reservation cannot be executed on the first key data stream.

In some embodiments of the present disclosure, the group level processing policy further includes a correspondence between Qos parameters of the plurality of target data flows, optional Qos configurations of the plurality of target data flows, and optional Qos configurations between the plurality of target data flows, and the apparatus further includes:

And the Qos parameter adjustment module is used for correspondingly adjusting Qos parameters of the target data flows except the first target data flow to the corresponding selectable QoS configuration according to the corresponding relation of the selectable QoS configuration among the plurality of target data flows when the Qos parameters of the first target data flow are degraded to the corresponding selectable QoS configuration, wherein the first target data flow is any one of the plurality of target data flows.

The device provided by the embodiment of the disclosure can send the plurality of stream description information and the plurality of group level identification information to the PCF network element through the AF network element, and send the group level processing policy containing the plurality of stream description information and the plurality of group level identification information to the RAN through the PCF network element. The RAN can determine a plurality of target data streams to be synchronously transmitted and perform corresponding group-level processing through the stream description information and the group-level identification information, so as to ensure that the plurality of target data streams to be synchronously transmitted are synchronously transmitted to a user.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 700 according to such an embodiment of the present disclosure is described below with reference to fig. 7. The electronic device 700 shown in fig. 7 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.

As shown in fig. 7, the electronic device 700 is embodied in the form of a general purpose computing device. Components of electronic device 700 may include, but are not limited to: the at least one processing unit 710, the at least one memory unit 720, and a bus 730 connecting the different system components, including the memory unit 720 and the processing unit 710.

Wherein the storage unit stores program code that is executable by the processing unit 710 such that the processing unit 710 performs steps according to various exemplary embodiments of the present disclosure described in the above detailed description of the present specification.

The memory unit 720 may include readable media in the form of volatile memory units, such as Random Access Memory (RAM) 7201 and/or cache memory 7202, and may further include Read Only Memory (ROM) 7203.

The storage unit 720 may also include a program/utility 7204 having a set (at least one) of program modules 7205, such program modules 7205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

Bus 730 may be a bus representing one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 700 may also communicate with one or more external devices 740 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 700, and/or any device (e.g., router, modem, etc.) that enables the electronic device 700 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 750. Also, electronic device 700 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN) and/or a public network, such as the Internet, through network adapter 760. As shown, network adapter 760 communicates with other modules of electronic device 700 over bus 730. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 700, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium, which may be a readable signal medium or a readable storage medium, is also provided. On which a program product is stored which enables the implementation of the method described above of the present disclosure. In some possible implementations, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the disclosure as described in the detailed description section of the disclosure, when the program product is run on the terminal device.

More specific examples of the computer readable storage medium in the present disclosure may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

In this disclosure, a computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Alternatively, the program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

In particular implementations, the program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order or that all illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the description of the above embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.

Claims

1. A data streaming method, characterized in that the method is performed by an application function, AF, network element, comprising:

and the PCF network element is used for generating a group level processing strategy according to the synchronous transmission request information, and sending the group level processing strategy to a Radio Access Network (RAN), wherein the group level processing strategy is used for indicating the RAN to synchronously transmit a plurality of target data streams.

2. The data stream transmission method according to claim 1, wherein any one of the stream description information is used for describing a target data stream, any one of the group level identification information is used for indicating that the corresponding target data stream needs to be synchronously transmitted.

3. The data stream transmission method according to claim 2, wherein the synchronous transmission request information further includes key data stream information for indicating a key data stream among a plurality of target data streams;

4. The data stream transmission method according to claim 3, wherein the synchronization transmission request information further includes Qos parameters of the plurality of target data streams, optional Qos configurations of the plurality of target data streams, and an optional Qos configuration correspondence between the plurality of target data streams, where the optional Qos configuration correspondence between the plurality of target data streams is used to adjust Qos parameters of the plurality of target data streams received by the RAN.

5. The method according to any one of claims 1 to 4, wherein the synchronous transmission request information further includes a plurality of lot identification information, and wherein any lot identification information corresponds to one target data stream, and the lot identification information is used to indicate an established lot of the corresponding target data stream.

6. The method according to any one of claims 1 to 4, wherein the synchronous transmission request information further includes an AF identifier and at least one user equipment UE identifier, where the AF identifier is used to indicate an AF network element that sends the synchronous transmission request information, and the UE identifier is used to indicate a receiver of a target data stream.

7. A method of data streaming, the method performed by a RAN comprising:

8. The data stream transmission method according to claim 7, wherein the group level processing policy further includes key data stream information, the key data stream information being used to indicate a key data stream of a plurality of target data streams;

the step of synchronously transmitting the plurality of target data streams according to the group-level processing strategy comprises the following steps:

identifying a key data stream according to the key data stream information;

9. The data stream transmission method according to any one of claims 7 or 8, wherein the group level processing policy further includes a Qos parameter of the plurality of target data streams, an optional Qos configuration of the plurality of target data streams, and an optional Qos configuration correspondence between the plurality of target data streams;

wherein the method further comprises:

10. A data streaming device, applied to an AF network element, comprising:

11. A data streaming apparatus for use in a RAN, comprising:

12. An electronic device, comprising:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the data streaming method of any of claims 1-9 via execution of the executable instructions.

13. A computer readable storage medium having stored thereon a computer program, wherein the computer program, when executed by a processor, implements the data streaming method of any of claims 1-9.