WO2022156384A1 - Data processing method and apparatus, base station, network device and storage medium - Google Patents

Abstract

Embodiments of the present disclosure provide a data processing method and apparatus, a base station, a network device, and a storage medium. The method comprises: according to a session management function (SMF) network element indication or after determining that a backhaul is provided by a satellite to a protocol data unit (PDU) session, determining whether a core network packet delay budget (CN PDB) or a backhaul delay satisfies a preset delay budget (PDB) requirement or not; and if not, sending a notification message carrying the value of the CN PDB to an SMF serving the PDU session, the notification message being used for notifying the SMF to request a policy control function (PCF) network element to update a QoS parameter according to the CN PDB. The backhaul delay detection is performed according to the change of the backhaul connection, and QoS modification is triggered in time, thereby avoiding service interruption.

Description

Data processing method, device, base station, network equipment and storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application with the application number 202110096966X filed on January 25, 2021 and the invention title is "Data Processing Method, Apparatus, Base Station, Network Equipment and Storage Medium", which is fully incorporated by reference This article.

technical field

The present disclosure relates to the field of communication technologies, and in particular, to a data processing method, an apparatus, a base station, a network device, and a storage medium.

Background technique

At present, the fifth-generation mobile communication technology 5G (fifith-generation) network supports satellite backhaul, and the 5G base station gNB (next generation node B) can connect to the 5G core network 5GC (fifith-generation Core Network) through the satellite link satellite link.

The gNB is connected to 5GC from the low earth orbit satellite LEO SAT (Low Earth orbit satellite). Due to the change of the inter-satellite link, the data backhaul delay of the backhaul network changes. This delay change may cause the current QoS parameters to be unsatisfied. The prior art relies on the user plane function network element UPF (User Plane Function) to periodically check the delay of the user plane connection, and then reports it to the session management function network element SMF (Session Management Function) through events. This method cannot detect the delay change between the gNB and the UPF in time, so that the gNB still schedules the air interface transmission according to the original packet delay budget AN PDB, so the end-to-end QoS of the QoS flow cannot be guaranteed. even lead to business interruption.

SUMMARY OF THE INVENTION

Embodiments of the present disclosure provide a data processing method, apparatus, base station, network device, and storage medium, so as to solve the problem that QoS parameters cannot be adjusted according to changes in the backhaul network in the prior art.

To solve the above problems, specifically, the embodiments of the present disclosure provide the following technical solutions:

In a first aspect, an embodiment of the present disclosure provides a data processing method, applied to a base station, including:

Determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements after the session management function network element SMF instructs or determines that the satellite is used to provide backhaul for the protocol data unit PDU session. If not satisfied, send a notification message carrying the value of the CN PDB to the SMF serving the PDU session, where the notification message is used to notify the SMF to request the policy control function network element PCF to update the QoS according to the CN PDB parameter.

Optionally, the determining using satellite to provide backhaul for the PDU session, including:

Determine to use satellite to provide backhaul for the PDU session according to the transport layer connection information of the N3 tunnel of the PDU session;

Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.

Optionally, the core network packet delay budget CN PDB is based on the general wireless packet service GPRS tunneling protocol GTP-U to send a backhaul request message on a preset tunnel, and is determined according to the time of the received backhaul response message. of;

Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.

Optionally, determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, including:

According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.

In a second aspect, an embodiment of the present disclosure further provides a data processing method, which is applied to a session management function network element SMF, including:

Receive a notification message sent by the base station, where the notification message carries the CN PDB value for determining the core network packet delay budget; wherein, the notification message is when the base station determines that the CN PDB does not meet the preset delay budget PDB requirement sent;

According to the notification message, request the policy control function network element PCF to update the QoS parameters according to the CN PDB.

Optionally, the CN PDB is based on the general wireless packet service GPRS tunneling protocol GTP-U sending a backhaul request message on a preset tunnel, and is determined according to the time of the received backhaul response message;

Or, send the Internet Internet Control Message Protocol ICMP packet to the opposite end UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and it is determined according to the receiving time of the ICMP packet.

In a third aspect, an embodiment of the present disclosure further provides a data processing method, which is applied to a session management function network element SMF, including:

After determining that the satellite is used as the backhaul, send an indication message to the base station or the user plane functional network element UPF, where the indication message is used to instruct the base station or the UPF to send a backhaul request message;

Determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, if not, request the policy control function network element PCF to update QoS parameters according to the CN PDB.

Optionally, the determining of the satellite as the return transmission includes:

According to the transport layer connection information of the N3 tunnel of the protocol data unit PDU session, it is determined to use the satellite to provide backhaul for the PDU session;

Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.

In a fourth aspect, an embodiment of the present disclosure further provides a data processing method, which is applied to a user plane function network element UPF, including:

After receiving the instruction message sent by the session management function network element SMF, send a return request message;

Send the backhaul response message corresponding to the backhaul request message to the SMF, and the SMF determines whether it satisfies the core network packet delay budget CN PDB or backhaul delay carried in the backhaul response message. The preset delay budget PDB requirements, if not satisfied, request the policy control function network element PCF to update the QoS parameters according to the CN PDB.

Optionally, the SMF determines whether the preset delay budget PDB requirement is met according to the core network packet delay budget CN PDB or the return delay carried in the return response message, including:

According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.

In a fifth aspect, an embodiment of the present disclosure further provides a data processing apparatus, applied to a base station, including:

The first processing module is configured to determine whether the core network packet delay budget CN PDB or the return delay meets the preset requirements after the session management function network element SMF indicates or determines that the satellite is used to provide backhaul for the protocol data unit PDU session. Delay budget PDB requirements, if not satisfied, send a notification message carrying the value of the CN PDB to the SMF serving the PDU session, the notification message is used to notify the SMF to request the policy control function network element PCF according to The CN PDB updates QoS parameters.

In a sixth aspect, an embodiment of the present disclosure further provides a data processing apparatus, which is applied to a session management function network element SMF, including:

The second receiving module is configured to receive a notification message sent by the base station, where the notification message carries the CN PDB value for determining the packet delay budget of the core network; wherein, the notification message is that the base station determines that the CN PDB is not satisfied Sent when the preset delay budget PDB is required;

The second processing module is configured to, according to the notification message, request the policy control function network element PCF to update the QoS parameters according to the CN PDB.

In a seventh aspect, an embodiment of the present disclosure further provides a data processing apparatus, which is applied to a session management function network element SMF, including:

The second sending module is configured to send an indication message to the base station or the user plane function network element UPF after determining that the satellite is used as the backhaul, where the indication message is used to instruct the base station or the UPF to send a backhaul request message;

The third processing module is used to determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, if not, requesting the policy control function network element PCF according to the CN PDB , to update the QoS parameters.

In an eighth aspect, an embodiment of the present disclosure further provides a data processing apparatus, which is applied to a user plane function network element UPF, including:

a third sending module, configured to send a return request message after receiving the instruction message sent by the session management function network element SMF;

a fourth receiving module, configured to receive a return response message in response to the return request message;

The fourth processing module is configured to send the backhaul response message to the SMF, and the SMF determines whether to The preset delay budget PDB requirements are met, and if not, the policy control function network element PCF is requested to update the QoS parameters according to the CN PDB.

In a ninth aspect, an embodiment of the present disclosure further provides a base station, including a memory, a processor, and a computer program stored in the memory and running on the processor, where the processor implements the following steps when executing the computer program:

Determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements after the session management function network element SMF instructs or determines that the satellite is used to provide backhaul for the protocol data unit PDU session. If not satisfied, send a notification message carrying the value of the CN PDB to the SMF serving the PDU session, where the notification message is used to notify the SMF to request the policy control function network element PCF to update the QoS according to the CN PDB parameter.

In a tenth aspect, an embodiment of the present disclosure further provides a session management function network element SMF, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program When implementing the following steps:

Receive a notification message sent by the base station, where the notification message carries the CN PDB value for determining the core network packet delay budget; wherein, the notification message is when the base station determines that the CN PDB does not meet the preset delay budget PDB requirement sent;

According to the notification message, the policy control function network element PCF is requested to update the QoS parameters according to the CN PDB.

In an eleventh aspect, an embodiment of the present disclosure further provides a session management function network element SMF, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer The program implements the following steps:

After determining that the satellite is used as the backhaul, send an indication message to the base station or the user plane functional network element UPF, where the indication message is used to instruct the base station or the UPF to send a backhaul request message;

Determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, if not, request the policy control function network element PCF to update QoS parameters according to the CN PDB.

In a twelfth aspect, an embodiment of the present disclosure further provides a user plane functional network element UPF, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer The program implements the following steps:

After receiving the instruction message sent by the session management function network element SMF, send a return request message;

Send the backhaul response message corresponding to the backhaul request message to the SMF, and the SMF determines whether it satisfies the core network packet delay budget CN PDB or backhaul delay carried in the backhaul response message. The preset delay budget PDB requirements, if not satisfied, request the policy control function network element PCF to update the QoS parameters according to the CN PDB.

In a thirteenth aspect, an embodiment of the present disclosure further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the above-mentioned first The steps of the data processing method described in one aspect or the second aspect or the third aspect or the fourth aspect.

The data processing method, device, base station, network device, and storage medium provided by the embodiments of the present disclosure determine the core network packet delay after the session management function network element SMF instructs or determines to use satellite to provide backhaul for the protocol data unit PDU session. Whether the budget CN PDB or return delay meets the preset delay budget PDB requirements, if not, a notification message carrying the CN PDB value is sent to the SMF serving the PDU session, and the notification message is used to notify the SMF to request policy control The functional network element PCF updates the QoS parameters according to the CN PDB. The embodiments of the present disclosure perform backhaul delay detection according to changes in backhaul connections, and trigger QoS modification in time, thereby avoiding service interruption.

Description of drawings

In order to illustrate the embodiments of the present disclosure or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present disclosure, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Figure 1 is a schematic diagram of the deployment of a 5G network when a satellite is used as a backhaul;

FIG. 2 is a schematic flowchart of the backhaul connection between UPF and SMF;

3 is a schematic flowchart of another UPF and SMF backhaul connection;

4 is a flowchart of steps applied to a base station provided by an embodiment of the present disclosure;

FIG. 5 is a flowchart of steps applied to a session management function network element SMF provided by an embodiment of the present disclosure;

FIG. 6 is a flowchart of another step applied to a session management function network element SMF provided by an embodiment of the present disclosure;

FIG. 7 is a flowchart of steps applied to a user plane function network element UPF provided by an embodiment of the present disclosure;

8 is a schematic diagram of SMF notifying gNB to enable delay detection provided by an embodiment of the present disclosure;

9 is a schematic diagram of a gNB detecting user plane delay provided by an embodiment of the present disclosure;

FIG. 10 is a schematic diagram of SMF detecting user plane delay provided by an embodiment of the present disclosure;

11 is a block diagram of a module of a data processing apparatus applied to a base station provided by an embodiment of the present disclosure;

12 is a block diagram of a module of a data processing apparatus applied to a session management function network element SMF provided by an embodiment of the present disclosure;

13 is a block diagram of a module of another data processing apparatus applied to a session management function network element SMF provided by an embodiment of the present disclosure;

14 is a block diagram of a module of a data processing apparatus applied to a user plane function network element UPF provided by an embodiment of the present disclosure;

15 is a schematic structural diagram of a base station provided by an embodiment of the present disclosure;

16 is a schematic structural diagram of a session management function network element SMF provided by an embodiment of the present disclosure;

FIG. 17 is a schematic structural diagram of a user plane function network element UPF provided by an embodiment of the present disclosure.

Detailed ways

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

It should be noted that, as shown in Figure 1, when the satellite is used as the backhaul, the 5G network is deployed as follows. The 5G base station gNB and the access and mobility management function unit AMF (Access and Mobility Management Function) are connected through the satellite chain. The link establishes the association of the NG interface. In this mode, the satellite link is still transparent to the protocol of the mobile communication network. Since the gNB may be mobile, such as vehicle, airborne, etc., it may happen that the gNB is connected to different satellites at different times. At this time, a new transport layer connection needs to be established between the gNB and the 5GC. In addition, even if the gNB does not move, the movement of non-GSO satellites such as low earth orbit LEO (Low Earth orbit) / medium orbit MEO (Medium Earth orbit) may also cause the satellite serving the gNB to change, resulting in backhaul connections. changes.

In the prior art, as shown in Figure 2, the user plane function unit UPF (User Plane Function) can notify the session management function unit SMF ( Session Management Function). The UPF reports the QoS limitation to the SMF through the N4Report process. SMF performs UPF selection and QoS parameter adjustment according to QoS limitations.

The processes involved are as follows:

Notify QoS limitation during N4 Association Setup process

As shown in Figure 3, the UPF can also report the QoS limitation on its GTP-U path to the SMF when it establishes an N4 association with the SMF. QoS limitation is notified during the N4 Association Update process.

The prior art relies on the UPF to periodically check the delay of the user plane connection, and then report it to the SMF through an event. This method cannot detect the delay change between the gNB and the UPF in time, so the gNB still schedules the air interface transmission according to the original AN PDB, so the end-to-end QoS of the QoS flow cannot be guaranteed, and even leads to service interruption. In order to solve this problem, an embodiment of the present disclosure provides a data processing method, which determines the core network packet delay budget CN PDB according to the session management function network element SMF instruction or after determining to use satellite to provide backhaul for the protocol data unit PDU session. Or return delay, whether it meets the preset delay budget PDB requirements, if not, send a notification message carrying the value of the CN PDB to the SMF serving the PDU session, and the notification message is used to notify all The SMF requests the policy control function network element PCF to update the QoS parameters according to the CN PDB. The embodiments of the present disclosure perform backhaul delay detection according to changes in backhaul connections, and trigger QoS modification in time, thereby avoiding service interruption.

The data processing method, apparatus, base station, network device and storage medium provided by the present disclosure will be explained and described in detail below through specific embodiments.

It should be noted that, in the following description, since the method and the device are conceived based on the same application, and the principles of the method and the device for solving problems are similar, the implementation of the device and the method can be referred to each other, and repeated descriptions will not be repeated.

In addition, it should be noted that the technical solutions provided by the embodiments of the present disclosure may be applicable to various systems, especially 5G systems. For example, the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (New Radio, NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (Evloved Packet System, EPS), a 5G system (5GS), and the like.

The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may be different. For example, in the 5G system, the terminal device may be called user equipment (User Equipment, UE). Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via a radio access network (Radio Access Network, RAN). "telephone) and computers with mobile terminal equipment, eg portable, pocket-sized, hand-held, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (Personal Digital Assistants), PDA) and other devices. Wireless terminal equipment may also be referred to as system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in the embodiments of the present disclosure. Since the terminal device and other network devices (eg, core network device, access network device (ie, base station)) together form a network that can support communication, in the present disclosure, the terminal device is also regarded as a kind of network device.

The network device involved in the embodiments of the present disclosure may be a base station, and the base station may include a plurality of cells providing services for the terminal, or may be a CU (Central Unit, centralized control unit) or a DU (Distributed Unit, distributed unit). Depending on the specific application, the network device may also be called an access point, or may be a device in the access network that communicates with wireless terminal devices through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet. Protocol (IP) communication network. The network devices may also coordinate attribute management for the air interface. For example, the network device involved in the embodiments of the present disclosure may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA). ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in 5G network architecture (next generation system), or Home evolved Node B (HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiments of the present disclosure. In some network structures, network devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, which may also be geographically separated.

In addition, it should be understood that the term "and/or" in the embodiments of the present disclosure describes the association relationship of associated objects, and indicates that there may be three kinds of relationships, for example, A and/or B, which may indicate that A exists alone, and A and B exist simultaneously. B, there are three cases of B alone. The character "/" generally indicates that the associated objects are an "or" relationship.

Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present disclosure. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

The present disclosure will be specifically described below.

As shown in FIG. 4 , a flowchart of steps of a data processing method applied to a base station provided by an embodiment of the present disclosure, the method includes the following steps:

Step 101: Determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB after being instructed by the session management function network element SMF or determined to use satellite to provide backhaul for the protocol data unit PDU session If not satisfied, send a notification message carrying the value of the CN PDB to the SMF serving the PDU session, where the notification message is used to notify the SMF to request the policy control function network element PCF according to the CN PDB , to update the QoS parameters.

In this step, it should be noted that in the process of establishing the PDU session, the SMF can determine that the user plane of the PDU session is returned via satellite according to the gNB information of the serving terminal equipment UE, such as the gNB ID, return type indication, etc.; Alternatively, after the establishment of the PDU session is completed, it is determined that the user plane of the PDU session is returned via satellite according to the tunnel information (IP address) of the downlink N3 tunnel allocated by the gNB for the PDU session. After the SMF determines that the PDU session is backhauled by the satellite, it can enable the Notification control mechanism for the QoS flow in the PDU session, and/or notify the base station to send a backhaul request message.

In this step, optionally, after the gNB determines that the serving satellite has changed, it performs backhaul delay detection with the user plane functional unit UPF. Specifically, the gNB sends back to the connected UPF or the configured gateway node. Send a request message to determine the core network packet delay budget CN PDB of each QoS flow in the PDU session.

The base station receives a backhaul response message sent by the core network in response to the backhaul request message. The purpose is to detect the user plane delay of the PDU session to determine the core network packet delay budget CN PDB of each QoS flow in the PDU session. Among them, the UE initiates the establishment of a PDU session, and the gNB serving the UE is connected to the 5GC through satellite backhaul.

According to the core network packet delay budget CN PDB or the return delay carried in the return response message, it is judged whether it can meet the packet delay budget PDB requirements of each quality of service flow QoS flow served by the base station, if not. , then send a notification message carrying the value of the CN PDB to the session management function network element SMF serving the PDU session, where the notification message is used to notify the SMF to request the policy control function network element PCF according to the CN PDB , and update the QoS parameters of each QoS flow. Wherein, the core network packet delay budget CN PDB carried in the backhaul response message is a backhaul request message sent on a preset tunnel based on the general wireless packet service GPRS tunneling protocol GTP-U, and according to the received backhaul The time of the response message is determined or the Internet Control Message Protocol ICMP packet is sent to the opposite end UPF of the GPRS Tunneling Protocol GTP-U path of the general wireless packet service, and it is determined according to the receiving time of the ICMP packet.

It should be noted that the gNB determines the user plane CN PDB according to the detected backhaul delay, and then judges whether it can meet the current packet delay budget PDB requirements of each quality of service flow QoS flow according to the CN PDB. If not, it will send a notification. message to SMF. The notification message carries the CN PDB, so that the SMF reports the CN PDB to the PCF according to the message, and triggers the process of updating the QoS parameters of each QoS flow. The QoS parameters include at least one of the following:

5QI;

PDB;

GFBR, Guaranteed Flow Bit Rate;

MFBR, Maximum Flow Bit Rate.

In the data processing method provided by the embodiment of the present disclosure, according to the session management function network element SMF instruction or after determining to use satellite to provide backhaul for the protocol data unit PDU session, determine the core network packet delay budget CN PDB or backhaul delay, whether it is Meet the preset delay budget PDB requirements, if not, send a notification message carrying the CN PDB value to the SMF serving the PDU session, where the notification message is used to notify the SMF to request a policy control function network The meta PCF updates the QoS parameters according to the CN PDB. The embodiments of the present disclosure perform backhaul delay detection according to changes in backhaul connections, and trigger QoS modification in time, thereby avoiding service interruption.

Based on the content of the foregoing embodiment, in this embodiment, the determining to use satellite to provide backhaul for the PDU session includes:

Determine to use satellite to provide backhaul for the PDU session according to the transport layer connection information of the N3 tunnel of the PDU session;

Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.

In this embodiment, optionally, during the process of establishing a PDU session by the UE, the base station determines that the PDU session uses satellite as the backhaul according to the transport layer connection of the N3 tunnel of the PDU session, or after the backhaul connection is switched, the base station determines according to the The transport layer connection information of the transport layer connection of the user plane connection of the PDU session determines that the PDU session uses satellite as a backhaul. The transport layer connection information may be an IP address or port of a base station connected to the transport layer, or a wireless transmission technology.

Based on the content of the above embodiment, in this embodiment, the core network packet delay budget CN PDB is based on the general wireless packet service GPRS tunneling protocol GTP-U to send a return request message on a preset tunnel, and according to the received The time of the returned response message is determined;

Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.

In this embodiment, it should be noted that when the base station and the base station perform the backhaul delay detection, based on the general wireless packet service GPRS tunneling protocol GTP-U, the backhaul request message is sent on the preset tunnel, for example, in the N3 tunnel (N3 tunnel ), and then calculate the core network packet delay budget CN PDB according to the time of receiving the echo response (echo response).

In this embodiment, it should be noted that the base station may not rely on the GTP-U tunnel management message when performing backhaul delay detection, and may use other means to detect the backhaul delay. For example, gNB uses non-3rd Generation Partnership Project 3GPP means to detect backhaul delay, such as sending Internet Control Message Protocol (ICMP) packets to the UPF at the opposite end of the GTP-U path to detect round-trip delay on the transmission path. Specifically, the core network packet delay budget CN PDB is determined according to the receiving time of the ICMP packet.

Based on the content of the above embodiment, in this embodiment, the determining whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, including:

According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.

In this embodiment, it should be noted that the packet delay budget of QoS flow is PDB=CN PDB+AN PDB (AN PDB is not 0). Therefore, it is possible to judge the return time according to the return delay or CN PDB. Whether the delay or CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, if so, it is determined that the packet delay budget PDB requirement of the QoS flow is not met.

As shown in FIG. 5, a flowchart of steps of a data processing method applied to a session management function network element SMF provided by an embodiment of the present disclosure, the method includes the following steps:

Step 201: Receive a notification message sent by the base station, where the notification message carries the CN PDB value for determining the core network packet delay budget; wherein, the notification message is that the base station determines that the CN PDB does not meet the preset delay Sent when requested by the Budget PDB;

In this step, when the base station determines that the CN PDB does not meet the packet delay budget PDB requirements of each QoS flow between the base station and the UPF, the base station sends a request to the session management function network that serves the PDU session. The meta-SMF sends a notification message carrying the value of the CN PDB. Wherein, CN PDB is determined by performing backhaul delay detection between the base station and the user plane functional network element UPF when the base station determines that the serving satellite changes.

Step 202: Request the policy control function network element PCF to update QoS parameters according to the CN PDB according to the notification message.

In this step, it should be noted that after receiving the notification message sent by the base station, the SMF initiates the SM policy update process, and requests the PCF to update the QoS parameters of the QoS flow. Optionally, the PCF may need to negotiate with the application layer and request the application function unit AF (Application Function) to update its QoS requirements according to the delay characteristics of the transmission path. Specifically, the PCF updates the QoS parameters according to the QoS requirements of the application layer to adapt to the delay characteristics of the backhaul connection, and triggers the QoS parameter modification process.

In the data processing method provided by the embodiment of the present disclosure, according to the session management function network element SMF instruction or after determining to use satellite to provide backhaul for the protocol data unit PDU session, determine the core network packet delay budget CN PDB or backhaul delay, whether it is Meet the preset delay budget PDB requirements, if not, send a notification message carrying the CN PDB value to the SMF serving the PDU session, where the notification message is used to notify the SMF to request a policy control function network The meta PCF updates the QoS parameters according to the CN PDB. The embodiments of the present disclosure perform backhaul delay detection according to changes in backhaul connections, and trigger QoS modification in time, thereby avoiding service interruption. Based on the content of the above embodiment, in this embodiment, the CN PDB sends a backhaul request message on a preset tunnel based on the General Radio Packet Service GPRS Tunneling Protocol GTP-U, and sends a backhaul request message according to the received backhaul response message. time fixed;

Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.

In this embodiment, it should be noted that when the base station performs the backhaul delay detection, it sends the backhaul request message on the preset tunnel based on the general wireless packet service GPRS tunneling protocol GTP-U, for example, in the N3 tunnel (N3 tunnel). The echo request packet is sent on the upper end, and then the core network packet delay budget CN PDB is calculated according to the time when the echo response (echo response) is received.

In this embodiment, it should be noted that, when the base station performs the backhaul delay detection, it may not rely on the GTP-U tunnel management message, but adopt other means to detect the backhaul delay. For example, gNB uses non-3rd Generation Partnership Project 3GPP means to detect backhaul delay, such as sending Internet Control Message Protocol (ICMP) packets to the UPF at the opposite end of the GTP-U path to detect round-trip delay on the transmission path. Specifically, the core network packet delay budget CN PDB is determined according to the receiving time of the ICMP packet.

As shown in FIG. 6, a flowchart of steps of a data processing method applied to a session management function network element SMF provided by an embodiment of the present disclosure, the method includes the following steps:

Step 301: After determining that the satellite is used as the backhaul, send an indication message to the base station or the user plane function network element UPF, where the indication message is used to instruct the base station or the UPF to send a backhaul request message;

In this step, during the establishment of the PDU session, the SMF can determine that the user plane of the PDU session is sent back via satellite according to the gNB information of the serving terminal equipment UE, such as the gNB ID, return type indication, etc.; or, in the PDU session After the establishment is completed, according to the tunnel information (IP address) of the downlink N3 tunnel allocated by the gNB for the PDU session, it is determined that the user plane of the PDU session is sent back through the satellite. When the SMF determines that the PDU session is backhauled through the satellite, it can enable the Notification control mechanism for the QoS flow in the PDU session, and/or notify the base station or the user plane function network element UPF to send an indication message, where the indication message is used to indicate The base station or UPF sends a backhaul request message.

The SMF receives the echo response message sent by the core network in response to the echo request message. The purpose is to detect the user plane delay of the PDU session to determine the core network packet delay budget CN PDB of each QoS flow in the PDU session. It should be noted that the SMF may instruct the base station to perform backhaul delay detection, and after the detection, the base station sends a notification message carrying the CN PDB value to the SMF. In addition, the SMF can also instruct the UPF serving the PDU session to detect the transmission delay of the user plane path and report the delay value through the N4 interface. UPF can perform delay detection through the echo reque/response process. Since the base station serves multiple PDU sessions, for the UPF serving different PDU sessions, the SMF will indicate the transmission delay of its probing path. After detection, each UPF reports the backhaul delay between it and the gNB to the SMF. The SMF then receives the CN PDB value or backhaul delay sent by the base station or UPF, and determines the CN PDB packet delay budget of the core network.

Step 302: Determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, if not, request the policy control function network element PCF to update QoS parameters according to the CN PDB .

In this step, the SMF can determine the user plane CN PDB according to the detected backhaul delay, and then judge whether it can meet the current packet delay budget PDB requirements of each quality of service flow QoS flow according to the CN PDB. The CN PDB is reported to trigger the process of updating the QoS parameters of each QoS flow.

In the data processing method provided by the embodiment of the present disclosure, according to the session management function network element SMF instruction or after determining to use satellite to provide backhaul for the protocol data unit PDU session, determine the core network packet delay budget CN PDB or backhaul delay, whether it is Meet the preset delay budget PDB requirements, if not, send a notification message carrying the CN PDB value to the SMF serving the PDU session, where the notification message is used to notify the SMF to request a policy control function network The meta PCF updates the QoS parameters according to the CN PDB. The embodiments of the present disclosure perform backhaul delay detection according to changes in backhaul connections, and trigger QoS modification in time, thereby avoiding service interruption.

Based on the content of the foregoing embodiment, in this embodiment, the determining of the satellite as the return transmission includes:

According to the transport layer connection information of the N3 tunnel of the protocol data unit PDU session, it is determined to use the satellite to provide backhaul for the PDU session;

Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.

In this embodiment, optionally, during the process of establishing a PDU session by the UE, the base station determines that the PDU session uses satellite as the backhaul according to the transport layer connection of the N3 tunnel of the PDU session, or after the backhaul connection is switched, the base station determines according to the The transport layer connection of the PDU Session user plane connection determines that the PDU Session uses satellite as backhaul.

As shown in FIG. 7 , a flowchart of steps of a data processing method applied to a user plane function network element UPF provided by an embodiment of the present disclosure, the method includes the following steps:

Step 401: After receiving the instruction message sent by the session management function network element SMF, send a return request message;

In this step, it should be noted that after receiving the instruction message sent by the SMF through the N4 interface for detecting the transmission delay of the user plane path, the UPF sends a return request message.

The UPF receives the echo response message sent by the core network in response to the echo request message. The purpose is to detect the user plane delay of the PDU session to determine the core network packet delay budget CN PDB of each QoS flow in the PDU session.

Step 402: Send the backhaul response message corresponding to the backhaul request message to the SMF, and the SMF budget CN PDB or backhaul delay according to the core network packet delay carried in the backhaul response message, Determine whether the preset delay budget PDB requirements are met, and if not, request the policy control function network element PCF to update the QoS parameters according to the CN PDB.

In this step, the UPF sends the detected backhaul delay to the SMF, and the SMF determines the user plane CN PDB according to the detected backhaul delay, and then judges whether the packets of the current QoS flow can be satisfied according to the CN PDB. Delay budget PDB requirements, if not satisfied, report CN PDB to PCF, triggering the process of updating QoS parameters of each QoS flow.

In the above steps 401 to 402, it can be understood that the UPF performs backhaul delay detection between the base station and the user plane functional network element UPF according to the instruction message sent by the SMF, and reports the backhaul delay between it and the base station to the SMF. transmission delay.

In the data processing method provided by the embodiment of the present disclosure, according to the session management function network element SMF instruction or after determining to use satellite to provide backhaul for the protocol data unit PDU session, determine the core network packet delay budget CN PDB or backhaul delay, whether it is Meet the preset delay budget PDB requirements, if not, send a notification message carrying the CN PDB value to the SMF serving the PDU session, where the notification message is used to notify the SMF to request a policy control function network The meta PCF updates the QoS parameters according to the CN PDB. The embodiments of the present disclosure perform backhaul delay detection according to changes in backhaul connections, and trigger QoS modification in time, thereby avoiding service interruption.

Based on the content of the foregoing embodiment, in this embodiment, the SMF determines whether the preset delay budget PDB is satisfied according to the core network packet delay budget CN PDB or the return delay carried in the return response message. requirements, including:

According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.

In this embodiment, the packet delay budget of QoS flow is PDB=CN PDB+AN PDB (AN PDB is not 0). Therefore, the SMF can determine the return delay or CN PDB according to the return delay or CN PDB. Whether it is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, it is determined that the packet delay budget PDB requirement of the QoS flow is not met.

The present disclosure will be specifically described below through specific embodiments.

First embodiment:

In this embodiment, as shown in FIG. 8 , the SMF notifies the base station gNB to enable notification control and delay detection. Proceed as follows:

1. The UE initiates the establishment of a PDU session, and the gNB serving the UE connects to the 5GC through satellite backhaul.

2. During the establishment of the PDU session, the SMF can determine the user plane of the PDU session via satellite backhaul according to the gNB information of the serving UE, such as gNB ID, return type indication, etc.; or, after the PDU session establishment is completed, according to The tunnel information (IP address) of the downlink N3 tunnel allocated by the gNB for the PDU session determines that the user plane of the PDU session is sent back via satellite.

3. When the SMF determines that the PDU session is sent back via the satellite, it can enable the Notification control mechanism for the QoS flow in the PDU session; and/or notify the base station to perform user plane delay detection of the PDU session and report it to the SMF (herein referred to as the SMF). notification mechanism).

4. The gNB starts the delay detection for the user plane path of the PDU session, for example, sends an echo request packet on N3tunnel, and then calculates the user plane path delay according to the time when the echo response is received.

Second embodiment:

In this embodiment, as shown in Figure 9, the base station gNB detects the user plane delay through the GTP-U tunnel management message. Proceed as follows:

1. When the satellite serving the gNB is changed, the gNB needs to establish a connection to the control plane and user plane of the 5GC through the new satellite.

2. After the gNB establishes the transport layer connection with the AMF, the delay detection is performed again for each user plane path between it and the core network, that is, each GTP-U path, that is, the echo request packet and Receive echo response.

3. Calculate the transmission delay of each GTP-U path according to echo request/response. And determine the transmission delay as the new CN PDB. The gNB determines whether to notify the SMF of the transmission delay of the backhaul path.

4. For the QoS flow that enables Notification control, the gNB feeds back the transmission delay of the backhaul path, that is, the transmission delay of the GTP-U path, to the SMF serving the QoS flow.

For the PDU session with the Notification mechanism enabled, the gNB reports the transmission delay change of the backhaul path to the SMF.

5. After receiving the transmission delay of the transmission path fed back by the gNB, the SMF initiates the SM policy update process and requests the PCF to update the QoS parameters of the QoS flow.

6. The PCF may need to negotiate with the application layer and request the AF to update its QoS requirements according to the delay characteristics of the transmission path.

7. The PCF updates the QoS parameters according to the QoS requirements of the application layer to adapt to the delay characteristics of the backhaul connection, and triggers the QoS parameter modification process.

Third embodiment:

In this embodiment, as shown in FIG. 10 , the base station gNB detects the user plane delay through non-3GPP means (eg, ICMP message). Specifically, in the second embodiment, when the gNB performs delay detection, it may not rely on the GTP-U tunnel management message, but use other means to detect the delay, that is, in step 2 of the second embodiment, the gNB Use non-3GPP means to detect the delay, such as sending an ICMP packet to the UPF of the opposite end of the GTP-U path to detect the round-trip delay on the transmission path. Wherein, the gNB determines that the CN PDB is half of the detected round-trip delay, and the subsequent steps are the same as those of the second embodiment.

Fourth embodiment:

In this embodiment, it should be noted that, as shown in FIG. 11 , the steps for SMF to detect the user plane delay are:

1. When the satellite serving the gNB is changed, the gNB needs to establish a connection to the control plane and user plane of the 5GC through the new satellite.

2. Due to the change of the transmission path, the gNB initiates a path switching process for each UE.

3. According to the tunnel information (gNB user plane IP address) of the downlink N3 tunnel of the PDU session carried in the path switching request message of each UE, the SMF determines whether it is necessary to perform delay detection on the N3 tunnel of the PDU session again. If the IP address determines that the gNB uses satellite backhaul, the delay reprobing is enabled.

4. The SMF instructs the UPF serving the PDU session to detect the transmission delay of the user plane path through the N4 interface and report the delay value. UPF can perform delay detection through the echo reque/response process.

Since the gNB serves multiple PDU sessions, the SMF will indicate the transmission delay of its probing path for UPFs serving different PDU sessions.

5. Each UPF reports the transmission delay between it and the gNB to the SMF.

6. When the SMF determines that the transmission delay before the UPF of the gNB cannot meet the QoS requirements of some QoS flows in the PDU session, it initiates the SM policy modification process for these QoS flows.

7. The PCF may need to negotiate with the application layer and request the AF to update its QoS requirements according to the delay characteristics of the transmission path.

8. The PCF updates the QoS parameters according to the QoS requirements of the application layer to adapt to the delay characteristics of the backhaul connection. When delivering the updated QoS parameters, the SMF determines the transmission delay as a new CN PDB and sends it to the gNB.

In the data processing method provided by the embodiments of the present disclosure, after the base station gNB determines that the serving satellite has changed, it performs transmission delay detection to the UPF or notifies the core network to perform transmission delay detection between the gNB and the UPF, and the gNB determines that the detected The transmission delay is determined as the CN PDB corresponding to the 5QI of the QoS flow it serves, and the CN PDB is used to calculate the AN PDB corresponding to the 5QI of the QoS flow. The 5QI may be a QoS parameter received from the core network before the serving satellite changes; or a new QoS parameter received from the core network after the serving satellite changes. Before determining the CN PDB, report the transmission delay to the core network, trigger the QoS modification process or receive the QoS parameters issued by the core network, and/or a new CN PDB, the new CN PDB is the SMF according to the gNB and UPF The transmission delay between them is determined. The embodiment of the present disclosure can accurately set the CN PDB, and trigger QoS modification in time to avoid service interruption.

In addition, as shown in FIG. 11 , it is a block diagram of a data processing apparatus applied to a base station in an embodiment of the present disclosure, and the apparatus includes:

The first processing module 11 is configured to determine whether the core network packet delay budget CN PDB or the return delay meets the pre-determined value after the session management function network element SMF indicates or determines that the satellite is used to provide backhaul for the protocol data unit PDU session. Set the delay budget PDB requirement, if not satisfied, send a notification message carrying the value of the CN PDB to the SMF serving the PDU session, where the notification message is used to notify the SMF to request the policy control function network element PCF According to the CN PDB, the QoS parameters are updated.

Based on the content of the foregoing embodiment, in this embodiment, the determining to use satellite to provide backhaul for the PDU session includes:

Determine to use satellite to provide backhaul for the PDU session according to the transport layer connection information of the N3 tunnel of the PDU session;

Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.

Based on the content of the above embodiment, in this embodiment, the core network packet delay budget CN PDB is based on the general wireless packet service GPRS tunneling protocol GTP-U to send a return request message on a preset tunnel, and according to the received The time of the returned response message is determined;

Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.

Based on the content of the above embodiment, in this embodiment, the determining whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, including:

According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.

It should be noted here that this device can implement all the method steps of the data processing method embodiment applied to the base station and can achieve the same technical effect, which will not be repeated here.

In addition, as shown in FIG. 12, a module block diagram of a data processing apparatus applied to a session management function network element SMF provided by an embodiment of the present disclosure, the apparatus includes:

The second receiving module 21 is configured to receive a notification message sent by the base station, where the notification message carries the CN PDB value for determining the packet delay budget of the core network; wherein, the notification message indicates that the base station determines that the CN PDB is not Sent when the preset delay budget PDB requirements are met;

The second processing module 22 is configured to, according to the notification message, request the policy control function network element PCF to update the QoS parameters according to the CN PDB.

Based on the content of the above embodiment, in this embodiment, the CN PDB sends a backhaul request message on a preset tunnel based on the General Radio Packet Service GPRS Tunneling Protocol GTP-U, and sends a backhaul request message according to the received backhaul response message. time fixed;

Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.

It should be noted here that this device can implement all the method steps of the data processing method embodiment applied to the base station and can achieve the same technical effect, which will not be repeated here.

In addition, as shown in FIG. 13, a module block diagram of a data processing apparatus applied to a session management function network element SMF provided by an embodiment of the present disclosure, the apparatus includes:

The second sending module 31 is configured to send an indication message to the base station or the user plane function network element UPF after determining that the satellite is used as the backhaul, where the indication message is used to instruct the base station or the UPF to send a backhaul request message;

The third processing module 33 is configured to determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, and if not, requesting the policy control function network element PCF according to the CN PDB PDB, update QoS parameters.

Based on the content of the foregoing embodiment, in this embodiment, the determining of the satellite as the return transmission includes:

According to the transport layer connection information of the N3 tunnel of the protocol data unit PDU session, it is determined to use the satellite to provide backhaul for the PDU session;

Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.

It should be noted here that this device can implement all the method steps of the data processing method embodiment applied to the base station and can achieve the same technical effect, which will not be repeated here.

In addition, as shown in FIG. 14, a module block diagram of a data processing apparatus applied to a user plane function network element UPF provided by an embodiment of the present disclosure, the apparatus includes:

The third sending module 41 is configured to send a return request message after receiving the instruction message sent by the session management function network element SMF;

The fourth processing module 43 is configured to send a backhaul response message corresponding to the backhaul request message to the SMF, where the SMF is based on the core network packet delay budget CN PDB or CN PDB carried in the backhaul response message. Return delay, determine whether the preset delay budget PDB requirements are met, and if not, request the policy control function network element PCF to update QoS parameters according to the CN PDB.

Based on the content of the foregoing embodiment, in this embodiment, the SMF determines whether the preset delay budget PDB is satisfied according to the core network packet delay budget CN PDB or the return delay carried in the return response message. requirements, including:

According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.

It should be noted here that this device can implement all the method steps of the data processing method embodiment applied to the base station and can achieve the same technical effect, which will not be repeated here.

FIG. 15 is a schematic structural diagram of a base station provided by an embodiment of the present disclosure, including a memory 1520 , a transceiver 1500 , and a processor 1510 .

15, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1510 and various circuits of memory represented by memory 1520 are linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 1500 may be a number of elements, including a transmitter and a receiver, that provide means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like. The processor 1510 is responsible for managing the bus architecture and general processing, and the memory 1520 may store data used by the processor 1510 in performing operations.

The processor 1510 may be a central processor (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (Complex Programmable Logic Device). , CPLD), the processor can also use a multi-core architecture.

The memory 1520 is used to store computer programs; the transceiver 1500 is used to send and receive data under the control of the processor; the processor 1510 is used to read the computer program in the memory and perform the following operations:

Determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements after the session management function network element SMF instructs or determines that the satellite is used to provide backhaul for the protocol data unit PDU session. If not satisfied, send a notification message carrying the value of the CN PDB to the SMF serving the PDU session, where the notification message is used to notify the SMF to request the policy control function network element PCF to update the QoS according to the CN PDB parameter.

Based on the content of the foregoing embodiment, in this embodiment, the determining to use satellite to provide backhaul for the PDU session includes:

Determine to use satellite to provide backhaul for the PDU session according to the transport layer connection information of the N3 tunnel of the PDU session;

Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.

Based on the content of the above embodiment, in this embodiment, the core network packet delay budget CN PDB is based on the general wireless packet service GPRS tunneling protocol GTP-U to send a return request message on a preset tunnel, and according to the received The time of the returned response message is determined;

Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.

Based on the content of the foregoing embodiment, in this embodiment, determining whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, including:

According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.

It should be noted here that the base station provided by the embodiment of the present disclosure can implement all the method steps of the data processing method embodiment applied to the base station and achieve the same technical effect, which is not repeated here.

FIG. 16 is one of the schematic structural diagrams of a session management function network element SMF provided by an embodiment of the present disclosure, including a memory 1620 , a transceiver 1600 , and a processor 1610 .

16, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1610 and various circuits of memory represented by memory 1620 are linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 1600 may be multiple elements, ie, including transmitters and receivers, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like. The processor 1610 is responsible for managing the bus architecture and general processing, and the memory 1620 may store data used by the processor 1610 in performing operations.

The processor 1610 can be a central processor (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (Complex Programmable Logic Device). , CPLD), the processor can also use a multi-core architecture.

The memory 1620 is used to store computer programs; the transceiver 1600 is used to send and receive data under the control of the processor; the processor 1610 is used to read the computer programs in the memory and perform the following operations:

Receive a notification message sent by the base station, where the notification message carries the CN PDB value for determining the core network packet delay budget; wherein, the notification message is when the base station determines that the CN PDB does not meet the preset delay budget PDB requirement sent;

According to the notification message, the policy control function network element PCF is requested to update the QoS parameters according to the CN PDB.

Based on the content of the above embodiment, in this embodiment, the CN PDB sends a backhaul request message on a preset tunnel based on the General Radio Packet Service GPRS Tunneling Protocol GTP-U, and sends a backhaul request message according to the received backhaul response message. time fixed;

Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.

Also perform the following operations: after determining that the satellite is used as the backhaul, send an indication message to the base station or the user plane functional network element UPF, where the indication message is used to instruct the base station or the UPF to send a backhaul request message;

Determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, if not, request the policy control function network element PCF to update QoS parameters according to the CN PDB.

Based on the content of the foregoing embodiment, in this embodiment, the determining of the satellite as the return transmission includes:

According to the transport layer connection information of the N3 tunnel of the protocol data unit PDU session, it is determined to use the satellite to provide backhaul for the PDU session;

Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.

It should be noted here that the session management function network element SMF provided by the embodiment of the present disclosure can implement all the method steps of the data processing method embodiment applied to the base station and achieve the same technical effect, which is not repeated here.

FIG. 17 is one of the schematic structural diagrams of the user plane function network element UPF provided by an embodiment of the present disclosure, including a memory 1720 , a transceiver 1700 , and a processor 1710 .

17, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1710 and various circuits of memory represented by memory 1720 are linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 1700 may be multiple elements, including a transmitter and a receiver, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like. The processor 1710 is responsible for managing the bus architecture and general processing, and the memory 1720 may store data used by the processor 1710 in performing operations.

The processor 1710 may be a central processor (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (Complex Programmable Logic Device). , CPLD), the processor can also use a multi-core architecture.

The memory 1720 is used to store computer programs; the transceiver 1700 is used to send and receive data under the control of the processor; the processor 1710 is used to read the computer programs in the memory and perform the following operations:

After receiving the instruction message sent by the session management function network element SMF, send a return request message;

Send the backhaul response message corresponding to the backhaul request message to the SMF, and the SMF determines whether it satisfies the core network packet delay budget CN PDB or backhaul delay carried in the backhaul response message. The preset delay budget PDB requirements, if not satisfied, request the policy control function network element PCF to update the QoS parameters according to the CN PDB.

Based on the content of the foregoing embodiment, in this embodiment, the SMF determines whether the preset delay budget PDB is satisfied according to the core network packet delay budget CN PDB or the return delay carried in the return response message. requirements, including:

According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.

It should be noted here that the user plane function network element UPF provided by the embodiments of the present disclosure can implement all the method steps of the data processing method embodiments applied to the base station and achieve the same technical effect, which is not repeated here.

On the other hand, an embodiment of the present disclosure further provides a processor-readable storage medium, where a computer program is stored in the processor-readable storage medium, and the computer program is used to cause the processor to execute the processes described in the foregoing embodiments. Methods.

The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD, DVD, BD, HVD, etc.), and semiconductor memory (eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)), etc.

It can be seen from the above-mentioned embodiments that the processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the steps of the above-mentioned data processing method.

As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block in the flowcharts and/or block diagrams, and combinations of flows and/or blocks in the flowcharts and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory result in the manufacture of means including the instructions product, the instruction means implements the functions specified in the flow or flow of the flowchart and/or the block or blocks of the block diagram.

These processor-executable instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process that Execution of the instructions provides steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present disclosure without departing from the spirit and scope of the present disclosure. Thus, provided that these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to cover such modifications and variations.

Claims (31)

1. A data processing method, characterized in that, applied to a base station, comprising:

   Determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements after the session management function network element SMF instructs or determines that the satellite is used to provide backhaul for the protocol data unit PDU session. If not satisfied, send a notification message carrying the value of the CN PDB to the SMF serving the PDU session, where the notification message is used to notify the SMF to request the policy control function network element PCF to update the QoS according to the CN PDB parameter.
2. The data processing method according to claim 1, wherein the determining that a satellite is used to provide backhaul for the PDU session comprises:

   Determine to use satellite to provide backhaul for the PDU session according to the transport layer connection information of the N3 tunnel of the PDU session;

   Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.
3. The data processing method according to claim 1, wherein the core network packet delay budget CN PDB is based on the general wireless packet service GPRS tunneling protocol GTP-U sending a return request message on a preset tunnel, and Determined according to the time when the response message is received;

   Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.
4. The data processing method according to claim 1, wherein the determining whether the core network packet delay budget CN PDB or the backhaul delay meets the preset delay budget PDB requirements, comprising:

   According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.
5. A data processing method, characterized in that, applied to a session management function network element SMF, comprising:

   Receive a notification message sent by the base station, where the notification message carries the CN PDB value for determining the core network packet delay budget; wherein, the notification message is when the base station determines that the CN PDB does not meet the preset delay budget PDB requirements sent;

   According to the notification message, the policy control function network element PCF is requested to update the QoS parameters according to the CN PDB.
6. The data processing method according to claim 5, wherein the CN PDB sends a backhaul request message on a preset tunnel based on the General Radio Packet Service GPRS Tunneling Protocol (GTP-U), and sends a backhaul request message according to the received backhaul response. The time of the message is determined;

   Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.
7. A data processing method, characterized in that, applied to a session management function network element SMF, comprising:

   After determining that the satellite is used as the backhaul, send an indication message to the base station or the user plane functional network element UPF, where the indication message is used to instruct the base station or the UPF to send a backhaul request message;

   Determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, if not, request the policy control function network element PCF to update QoS parameters according to the CN PDB.
8. The data processing method according to claim 7, wherein the determining of the satellite as the return transmission comprises:

   According to the transport layer connection information of the N3 tunnel of the protocol data unit PDU session, it is determined to use the satellite to provide backhaul for the PDU session;

   Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.
9. A data processing method, characterized in that, applied to a user plane functional network element UPF, comprising:

   After receiving the instruction message sent by the session management function network element SMF, send a return request message;

   Send the backhaul response message corresponding to the backhaul request message to the SMF, and the SMF determines whether it meets the requirements according to the core network packet delay budget CN PDB or backhaul delay carried in the backhaul response message. The preset delay budget PDB requirements, if not satisfied, request the policy control function network element PCF to update the QoS parameters according to the CN PDB.
10. The data processing method according to claim 9, wherein the SMF determines whether the preset delay is satisfied according to the core network packet delay budget CN PDB or the return delay carried in the return response message Budget PDB requirements, including:

    According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.
11. A data processing device, applied to a base station, is characterized in that, comprising:

    The first processing module is configured to determine whether the core network packet delay budget CN PDB or the return delay meets the preset requirements after the session management function network element SMF indicates or determines that the satellite is used to provide backhaul for the protocol data unit PDU session. Delay budget PDB requirements, if not satisfied, send a notification message carrying the value of the CN PDB to the SMF serving the PDU session, the notification message is used to notify the SMF to request the policy control function network element PCF according to The CN PDB updates QoS parameters.
12. The data processing apparatus according to claim 11, wherein the determining to use a satellite to provide backhaul for the PDU session comprises:

    Determine to use satellite to provide backhaul for the PDU session according to the transport layer connection information of the N3 tunnel of the PDU session;

    Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.
13. The data processing device according to claim 11, wherein the core network packet delay budget CN PDB is based on the general wireless packet service GPRS tunneling protocol GTP-U sending a return request message on a preset tunnel, and Determined according to the time when the response message is received;

    Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite end UPF of the General Radio Packet Service GPRS Tunneling Protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.
14. The data processing apparatus according to claim 11, wherein the determining whether the core network packet delay budget CN PDB or the backhaul delay meets the preset delay budget PDB requirements, comprising:

    According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.
15. A data processing device, applied to a session management function network element SMF, is characterized in that, comprising:

    The second receiving module is configured to receive a notification message sent by the base station, where the notification message carries the CN PDB value for determining the packet delay budget of the core network; wherein, the notification message is that the base station determines that the CN PDB is not satisfied Sent when the preset delay budget PDB is required;

    The second processing module is configured to, according to the notification message, request the policy control function network element PCF to update the QoS parameters according to the CN PDB.
16. The data processing device according to claim 15, wherein the CN PDB sends a backhaul request message on a preset tunnel based on the General Radio Packet Service GPRS Tunneling Protocol (GTP-U), and sends a backhaul request message according to the received backhaul response. The time of the message is determined;

    Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.
17. A data processing device, applied to a session management function network element SMF, is characterized in that, comprising:

    The second sending module is configured to send an indication message to the base station or the user plane function network element UPF after determining that the satellite is used as the backhaul, where the indication message is used to instruct the base station or the UPF to send a backhaul request message;

    The third processing module is used to determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, if not, requesting the policy control function network element PCF according to the CN PDB , to update the QoS parameters.
18. The data processing apparatus according to claim 17, wherein the determining of the satellite as the return transmission comprises:

    According to the transport layer connection information of the N3 tunnel of the protocol data unit PDU session, it is determined to use the satellite to provide backhaul for the PDU session;

    Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.
19. A data processing device, applied to a user plane function network element UPF, is characterized in that, comprising:

    a third sending module, configured to send a return request message after receiving the instruction message sent by the session management function network element SMF;

    The fourth processing module is configured to send the backhaul response message corresponding to the backhaul request message to the SMF, and the SMF according to the core network packet delay budget CN PDB or backhaul carried in the backhaul response message. The transmission delay is used to determine whether the preset delay budget PDB requirements are met. If not, the policy control function network element PCF is requested to update the QoS parameters according to the CN PDB.
20. The data processing apparatus according to claim 19, wherein the SMF determines whether the preset delay is satisfied according to the core network packet delay budget CN PDB or the return delay carried in the return response message Budget PDB requirements, including:

    According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.
21. A base station, comprising a memory, a processor and a computer program stored on the memory and running on the processor, wherein the processor implements the following steps when executing the computer program:

    Determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements after the session management function network element SMF instructs or determines that the satellite is used to provide backhaul for the protocol data unit PDU session. If not satisfied, send a notification message carrying the value of the CN PDB to the SMF serving the PDU session, where the notification message is used to notify the SMF to request the policy control function network element PCF to update the QoS according to the CN PDB parameter.
22. The base station of claim 21, wherein the determining to use a satellite to provide backhaul for the PDU session comprises:

    Determine to use satellite to provide backhaul for the PDU session according to the transport layer connection information of the N3 tunnel of the PDU session;

    Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.
23. The base station according to claim 21, wherein the core network packet delay budget CN PDB is based on the general wireless packet service GPRS tunneling protocol GTP-U sending a backhaul request message on a preset tunnel, and according to the received The time of the returned response message is determined;

    Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.
24. The base station according to claim 21, wherein the determining whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, comprising:

    According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.
25. A session management function network element SMF, comprising a memory, a processor and a computer program stored in the memory and running on the processor, wherein the processor implements the following steps when executing the computer program:

    Receive a notification message sent by the base station, where the notification message carries the CN PDB value for determining the core network packet delay budget; wherein, the notification message is when the base station determines that the CN PDB does not meet the preset delay budget PDB requirements sent;

    According to the notification message, the policy control function network element PCF is requested to update the QoS parameters according to the CN PDB.
26. The session management function network element SMF according to claim 25, wherein the CN PDB is based on the General Radio Packet Service GPRS Tunneling Protocol GTP-U to send a backhaul request message on a preset tunnel, and according to the received The time of returning the response message is determined;

    Or, it is based on sending the Internet Internet Control Message Protocol ICMP packet to the opposite UPF of the general wireless packet service GPRS tunneling protocol GTP-U path, and is determined according to the receiving time of the ICMP packet.
27. A session management function network element SMF, comprising a memory, a processor and a computer program stored in the memory and running on the processor, wherein the processor implements the following steps when executing the computer program:

    After determining that the satellite is used as the backhaul, send an indication message to the base station or the user plane functional network element UPF, where the indication message is used to instruct the base station or the UPF to send a backhaul request message;

    Determine whether the core network packet delay budget CN PDB or backhaul delay meets the preset delay budget PDB requirements, if not, request the policy control function network element PCF to update QoS parameters according to the CN PDB.
28. The session management function network element SMF according to claim 27, wherein the determining of the satellite as the backhaul comprises:

    According to the transport layer connection information of the N3 tunnel of the protocol data unit PDU session, it is determined to use the satellite to provide backhaul for the PDU session;

    Or, according to the transport layer connection information of the user plane connection of the PDU session, it is determined to use the satellite to provide backhaul for the PDU session.
29. A user plane function network element UPF, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor implements the following steps when executing the computer program:

    After receiving the instruction message sent by the session management function network element SMF, send a return request message;

    Send the backhaul response message corresponding to the backhaul request message to the SMF, and the SMF determines whether it satisfies the core network packet delay budget CN PDB or backhaul delay carried in the backhaul response message. The preset delay budget PDB requirements, if not satisfied, request the policy control function network element PCF to update the QoS parameters according to the CN PDB.
30. The user plane function network element UPF according to claim 29, wherein the SMF determines whether the pre-order is satisfied according to the core network packet delay budget CN PDB or the backhaul delay carried in the backhaul response message. Set delay budget PDB requirements, including:

    According to the backhaul delay or the CN PDB, determine whether the backhaul delay or the CN PDB is greater than or equal to the packet delay budget PDB of the QoS flow, and if so, determine that the QoS is not satisfied Packet delay budget PDB requirement for flow.
31. A non-transitory computer-readable storage medium on which a computer program is stored, characterized in that, when the program is executed by a processor, the steps of the data processing method according to any one of claims 1 to 4 are implemented, or the program is executed The steps of the data processing method according to any one of claims 5 or 6, or the steps of executing the data processing method according to any one of claims 7 or 8, or the steps of executing the data processing method according to any one of claims 9 or 10 The steps of the data processing method described.

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