CN115412507A

CN115412507A - Data processing method, information determining equipment and storage medium

Info

Publication number: CN115412507A
Application number: CN202110589666.5A
Authority: CN
Inventors: 韦安妮; 马帅; 肖善鹏
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2022-11-29

Abstract

The invention discloses a data processing method, an information determining method, data processing equipment, information determining equipment and a storage medium, wherein the data processing method comprises the following steps: the UE establishes the same IP type session or the same Ethernet type session for the data which are interacted between the same source TAN switch and the same target TAN switch and are packaged based on the preset format; UE sends 5G conversation related information to a TAN system control center, wherein the TAN system control center is a functional body for determining service requirements and service flow identification information; and the UE transmits the data which is encapsulated in the IP message or the Ethernet frame and is encapsulated based on the predetermined format according to the QoS rule issued by the SMF, wherein the QoS rule is generated according to the service requirement and the service flow identification information determined by the TAN system control center. By adopting the invention, the information of the TAN header field can be utilized, the QoS control can be carried out, the better fusion of the two systems can be realized, the wireless deployment convenience brought by a wireless network can be utilized, and the transmission guarantee of the high-reliability deterministic time delay provided by the TAN system can be realized.

Description

Data processing method, information determining method, information processing device, information determining device, and storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a data processing method, an information determining method, data processing equipment, and information determining equipment, and a storage medium.

Background

The TAN (Time Aware Network) technology is a brand-new Time-based industrial communication technology, and is implemented by introducing a clock synchronization technology into a TAN system and encapsulating a TAN frame header before a standard ethernet frame header field to process data by various Time identifiers of a destination switch, a source switch, a data priority, a data sequence number and the data. The TAN technology has good compatibility with various industrial protocols used by current industrial networks because of encapsulation of standard ethernet frames. The observability based on TAN, i.e. the network is aware of the data origin, data destination, data content, data time. At present, the TAN technology is well applied to multiple fields of industrial internet, such as scenes of synchronous transmission of control instructions, redundant backup of data, data monitoring and the like.

The prior art is insufficient in that, in an architecture in which TAN and 5G are merged, a 5G system in which a current 5G end-to-end (UE-UPF) network supports IP packet transmission and ethernet packet transmission cannot be well adapted to the transmission quality requirement of the TAN system.

Disclosure of Invention

The invention provides a data processing method, an information determining method, data processing equipment, information determining equipment and a storage medium, which are used for solving the problem that a 5G system supporting IP data packet transmission and Ethernet data packet transmission in a current 5G end-to-end (UE-UPF) network cannot be well adapted to the transmission quality requirement of a TAN system in a framework of fusion of the TAN and the 5G.

The invention provides the following technical scheme:

a method of data processing, comprising:

the UE establishes the same IP type session or the same Ethernet type session for the data which are interacted between the same source TAN switch and the same target TAN switch and are packaged based on the preset format;

UE sends 5G conversation related information to a TAN system control center, wherein the TAN system control center is a functional body for determining service requirements and service flow identification information;

and the UE transmits data packaged in an IP message or an Ethernet frame based on a predetermined format according to a QoS rule issued by the SMF, wherein the QoS rule is generated according to the service requirement and the service flow identification information determined by the TAN system control center.

In implementation, the data encapsulated based on the predetermined format for encapsulating the IP packet or the ethernet frame is to encapsulate the data encapsulated based on the predetermined format in a payload of the IP packet or the ethernet frame, and map a field indicating a data type or a data priority in a TAN header field into an IP header field.

In implementation, a field in the TAN header field indicating a data type or data priority is mapped into a type of service, or traffic class type, in the IP header field, or VLAN tag in the MAC header field of the ethernet frame.

In an implementation, the 5G session related information includes one or a combination of the following information:

UE source address, TAN header field information.

In the implementation, after receiving the QoS Rule sent by the SMF, the UE further includes:

QFI mapping is performed according to QoS Rule.

In implementation, the QoS Rule includes Packet Filter;

QFI mapping according to QoS Rule is performed according to Packet Filter.

In an implementation, the method further comprises the following steps:

and triggering a corresponding session establishment request according to the data type packaged based on the preset format.

In an implementation, the method further comprises the following steps:

if the corresponding session is an ethernet session, different virtual MAC addresses are constructed for different sessions to distinguish different types of data encapsulated based on a predetermined format and transmitted on different sessions.

In an implementation, the method further comprises the following steps:

and the UE distinguishes the data types based on the IP header field or the Ethernet header field mapped by the header field of the data encapsulated based on the preset format and then uses corresponding QoS.

In an implementation, the QoS rule for QoS control is determined by a field indicating a data type or a data priority in a header of the data encapsulated based on the predetermined format.

In an implementation, the data encapsulated based on the predetermined format is TAN data.

An information determination method, comprising:

receiving 5G session related information sent by UE by a TAN system control center, wherein the TAN system control center is a functional body for determining service requirements and service flow identification information;

and the TAN system control center determines the service requirement and the service flow identification information according to the service transmission quality requirement, the control information of the TAN system and the 5G session related information, wherein the service requirement and the service flow identification information are used for generating a data QoS rule which is packaged in an IP message or an Ethernet frame based on a predetermined format and transmits the transmission package of the UE.

In an implementation, the service flow identification information includes one or a combination of the following information:

a UE source address, TAN header information, a mapped IP header field with the TAN header information, and a mapped MAC header field with the TAN header information.

A UE, comprising:

a processor for reading the program in the memory, performing the following processes:

establishing the same IP type session or the same Ethernet type session for the data which are interacted between the TAN switch of the same source and the TAN switch of the same destination and are packaged based on the preset format;

sending 5G session related information to a TAN system control center, wherein the TAN system control center is a functional body for determining service requirements and service flow identification information;

transmitting data packaged in an IP message or an Ethernet frame based on a predetermined format according to a QoS rule issued by an SMF, wherein the QoS rule is generated according to the service requirement and the service flow identification information determined by the TAN system control center;

a transceiver for receiving and transmitting data under the control of the processor.

UE source address, TAN header field information.

In implementation, after receiving the QoS Rule sent by the SMF, the method further includes:

QFI mapping is performed according to QoS Rule.

In implementation, the QoS Rule includes Packet Filter;

QFI mapping according to QoS Rule is QFI mapping according to Packet Filter.

In an implementation, the method further comprises the following steps:

and distinguishing the data types based on the IP header field or the Ethernet header field of the header field mapping of the data encapsulated based on the preset format and then using the corresponding QoS.

In an implementation, the QoS rule for QoS control is determined by a field indicating a data type or a data priority in a frame header of the data encapsulated based on the predetermined format.

A UE, comprising:

the UE session module is used for establishing the same IP type session or the same Ethernet type session for the data which are interacted between the same source TAN switch and the same target TAN switch and are encapsulated based on the preset format;

a UE sending module, configured to send 5G session related information to a TAN system control center, where the TAN system control center is a function body that determines service requirements and service flow identification information;

and the UE transmission module is used for transmitting data which is encapsulated in an IP message or an Ethernet frame based on a predetermined format according to a QoS rule issued by the SMF, wherein the QoS rule is generated according to the service requirement and the service flow identification information determined by the TAN system control center.

In an implementation, the UE transmission module is further configured to, when encapsulating data encapsulated based on a predetermined format of an IP packet or an ethernet frame, encapsulate the data encapsulated based on the predetermined format in a payload of the IP packet or the ethernet frame, and map a field indicating a data type or a data priority in the TAN header field into the IP header field.

In an implementation, the UE transmission module is further configured to map a field indicating a data type or a data priority in the TAN header field into a type of service, or a traffic class type, in the IP header field, or a VLAN tag in the ethernet frame MAC header field.

In an implementation, the UE sending module is further configured to send the 5G session related information including one or a combination of the following information:

UE source address, TAN header field information.

In implementation, the UE transmission module is further configured to perform QFI mapping according to the QoS Rule after receiving the QoS Rule sent by the SMF.

In an implementation, the UE transmission module is further configured to receive the QoS Rule including Packet Filter; QFI mapping according to QoS Rule is QFI mapping according to Packet Filter.

In an implementation, the UE session module is further configured to trigger a corresponding session establishment request according to the data type encapsulated based on the predetermined format.

In an implementation, the UE session module is further configured to construct different virtual MAC addresses for different sessions if the corresponding session is an ethernet session, so as to distinguish different types of data encapsulated based on a predetermined format and transmitted on different sessions.

In an implementation, the UE transmission module is further configured to distinguish data types based on the IP header field or the ethernet header field mapped to the header field of the data encapsulated based on the predetermined format and then use corresponding QoS.

In an implementation, the UE transmission module is further configured to determine the QoS rule for QoS control by indicating a data type or a data priority field in a frame header of the data encapsulated based on the predetermined format.

In an implementation, the UE session module is further configured to establish the same IP type session or the same ethernet type session for data encapsulated based on a predetermined format and interacted between the same source TAN switch and the same destination TAN switch, where the data encapsulated based on the predetermined format is TAN data.

A TAN system control center comprising:

receiving 5G session related information sent by UE, wherein the TAN system control center is a functional body for determining service requirements and service flow identification information;

determining a service requirement and service flow identification information by combining service transmission quality requirements, control information of a TAN system and the 5G session related information, wherein the service requirement and the service flow identification information are used for generating a data QoS rule which is transmitted and encapsulated in an IP message or an Ethernet frame and encapsulated based on a preset format and used for issuing UE;

A TAN system control center comprising:

a TAN system control center receiving module, configured to receive information related to a 5G session sent by a UE, where the TAN system control center is a function body that determines a service requirement and service flow identification information;

and the TAN system control center determining module is used for determining service requirements and service flow identification information by combining service transmission quality requirements, control information of the TAN system and the 5G session related information, wherein the service requirements and the service flow identification information are used for generating a data QoS rule which is transmitted and encapsulated in an IP message or an Ethernet frame and encapsulated based on a preset format and used for transmitting the transmission encapsulation of the UE.

In an implementation, the TAN system control center determining module is further configured to determine traffic flow identification information including one or a combination of the following information:

a UE source address, TAN header field information, an IP header field mapped with the TAN header field information, and a MAC header field mapped with the TAN header field information.

A computer-readable storage medium storing a computer program that executes one of the above-described data processing method, information determination method, or a combination thereof.

The invention has the following beneficial effects:

in the technical scheme provided by the embodiment of the invention, the UE establishes the same IP type session or the same Ethernet type session for the data which are interacted between the same source TAN switch and the same target TAN switch and are encapsulated based on the preset format, meanwhile, the information related to the 5G session is sent to the TAN system control center, the TAN system control center generates the QoS rule according to the service requirement and the service flow identification information, and the UE can perform QoS control on the session according to the QoS rule, so that the fusion of the 5G and TAN systems is solved, and the QoS control can be performed.

Further, since the UE maps a field indicating a data type or a data priority in the TAN header field to the IP header field, and sends 5G session related information to the TAN system control center for the TAN system control center to determine a service requirement and service flow identification information, the UE also performs QFI mapping according to the QoS Rule sent by the MF. Therefore, the information of the TAN header field can be used, and QoS control can be performed.

Furthermore, the currently supported 5G system for IP data packet transmission and Ethernet data packet transmission can be well adapted to the transmission quality requirement of the TAN system, and is not only used as a data transparent transmission line between the TAN switches, so that the two systems are better integrated, the wireless deployment convenience brought by a wireless network can be utilized, and the transmission guarantee of high-reliability deterministic time delay provided by the TAN system can be realized.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a 5G network architecture according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a 5G user plane protocol stack in the embodiment of the present invention;

FIG. 3 is a diagram illustrating a TAN frame structure in an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating the integration of the TAN system and the wireless network in the embodiment of the present invention;

fig. 5 is a first schematic diagram illustrating IP encapsulation of a TAN data pair in an embodiment of the present invention;

FIG. 6 is a second schematic diagram illustrating IP encapsulation of a TAN data pair according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a flow chart of a data processing method implemented by a UE side according to an embodiment of the present invention;

fig. 8 is a schematic flow chart illustrating an implementation of the information determination method at the TAN system control center side in the embodiment of the present invention;

fig. 9 is a schematic flowchart of an implementation of a rule generating method on the PCF side in an embodiment of the present invention;

fig. 10 is a schematic diagram of a TAN system and a 5G network convergence scheme 1 in an embodiment of the present invention;

fig. 11 is a schematic flow diagram of an implementation of the TAN system and the 5G network convergence scheme 1 in the embodiment of the present invention;

FIG. 12 is a diagram illustrating mapping of IP header fields and TAN header fields in an embodiment of the present invention;

fig. 13 is a schematic diagram illustrating mapping of a MAC header field and a TAN header field in an embodiment of the present invention;

fig. 14 is a schematic diagram of a TAN system and a 5G network convergence scheme 2 in an embodiment of the present invention;

fig. 15 is a schematic flow chart of an implementation of the TAN system and the 5G network convergence scheme 2 in the embodiment of the present invention;

fig. 16 is a schematic diagram of a TAN system and a 5G network convergence scheme 3 in an embodiment of the present invention;

fig. 17 is a schematic flow chart of implementation of the TAN system and 5G network convergence scheme 3 in the embodiment of the present invention;

FIG. 18 is a diagram illustrating a UE structure according to an embodiment of the present invention;

fig. 19 is a schematic structural diagram of a TAN system control center in an embodiment of the present invention;

fig. 20 is a schematic view of a PCF structure in an embodiment of the present invention.

Detailed Description

The inventor notices in the invention process that:

fig. 1 is a schematic diagram of a 5G network architecture, as shown in the figure, the currently determined 5G network architecture includes end-to-end nodes or network elements, including:

UE (User Equipment): 5G terminal equipment;

(R) AN (Radio Access Network): an access network device;

a UPF (User plane Function) device;

the 5G Control plane adopts a service-based architecture, and the Control plane Network element includes an AUSF (Authentication Server Function), an AMF (Mobility Management Function), an SMF (Session Management Function), an NSSF (Network Slice Selection Function), a NEF (Network capability opening Function), an NRF (Network Function database Function, network security Function), a PCF (Policy Control Function ), a UDM (Unified database), and an AF (Application Function).

The UDM completes functions of user subscription data management, authentication information generation, mobility management, short message routing and the like;

the AUSF provides authentication related functions.

Fig. 2 is a schematic diagram of a 5G user plane protocol stack, and a protocol stack between a 5G user plane UE and a RAN-UPF is shown in fig. 2, where:

PDU (Packet Data Unit) layer, which corresponds to a PDU carried between a UE and a DN (Data Network) in a PDU session. When the PDU session type is IPv4 (Internet Protocol Version 4) or IPv6 (Internet Protocol Version 6) or IPv4v6, it corresponds to IPv4 data packet or IPv6 data packet or both; and when the PDU session type is Ethernet, the PDU session type corresponds to the Ethernet frame.

The TAN (Time Aware Network) technology is a brand-new Time-based industrial communication technology, and fig. 3 is a schematic view of a TAN frame structure, which implements processing of data by introducing a clock synchronization technology in a TAN system and encapsulating a TAN frame header (as shown in fig. 3) before a standard ethernet frame header domain, so as to implement various Time identifiers of a destination switch, a source switch, a data priority, a data sequence number, and data. The TAN technology has good compatibility with various industrial protocols used by current industrial networks because of encapsulation of standard ethernet frames. The network is aware of the data source, data destination, data content, and data time based on the observability of the TAN. At present, the TAN technology is well applied to multiple fields of industrial internet, such as scenes of synchronous transmission of control instructions, redundant backup of data, data monitoring and the like.

Fig. 4 is a schematic diagram illustrating a TAN system and a wireless network, and a framework of the TAN system and the 5G convergence is as shown in fig. 4, wherein most of control information of the TAN system is transferred between TAN switches through a TAN header field, and the TAN switches perform data differentiation and scheduling according to their own algorithms and the TAN header field. However, in a wireless deployment scenario, when a TAN is merged with a 5G network, and a TAN frame is transmitted in the 5G network, a current implementation mechanism is to encapsulate the TAN frame in an IP packet for transmission (fig. 5 is a first IP encapsulation schematic diagram of a TAN data pair, as shown in fig. 5). The QoS (Quality of Service) rule of the 5G network performs QoS control only for an IP Packet according to an IP Packet header IP Packet Filter Set, and the TAN header field does not play any role as content data information in an IP Packet transmitted in the 5G system. Under the structure, a 5G end-to-end (UE-UPF) network is only used as a data transparent transmission line between the TAN switches, and best-effort transmission is realized for a transmission path between the TAN switch devices. TAN currently has no mechanism to enable the operator network to adapt to the transmission requirements of its system.

The encapsulation format of the TAN data in the IP packet is shown in fig. 5.

Among them, there is a scheme to define 5G IP Packet Filter Set for QoS control at present, which includes the following items:

source/destination IP address or IPv6 prefix (Source/target IP address or IPv6 prefix)

Source/destination port number (Source/destination port number)

-Protocol ID of the Protocol above IP/Next header type (IP/Protocol ID of Protocol on Next header type)

Type of Service (TOS) (IPv 4)/Traffic class (IPv 6) and mask

-Flow Label (IPv 6) (Flow Label (IPv 6))

Security parameter index

Packet Filter Direction (Packet Filter Direction)

The scheme is not used in actual deployment, but an ethernet session type is also defined in some schemes, if an ethernet type session is used to transmit a TAN packet, fig. 6 is a schematic diagram of IP encapsulation of a TAN data pair, and an encapsulation format of the IP encapsulation is shown in fig. 6. Like the IP type session, the QoS rule of the 5G network performs QoS control on the Ethernet Packet only according to the Ethernet Packet Filter Set (Ethernet Packet Filter Set) of the Ethernet Packet header, and the TAN header field does not play any role as content data information in the Ethernet Packet transmitted in the 5G system.

The 5G Ethernet Packet Filter Set for QoS control contains the following items:

source/destination MAC address (Source/destination MAC address; MAC: media Access Control)

Ethertype as defined in IEEE 802.3. (Ethernet type defined in IEEE 802.3)

Customer-VLAN TAG (C-TAG) and/or Service-VLAN TAG (S-TAG) VID fields as defined in IEEE Std 802.1Q [98] (Customer VLAN TAG (C-TAG) and/or Service VLAN TAG (S-TAG) VID fields as defined in IEEE Std 802.1Q [98 ]; VLAN: virtual Local Area Network)

-Customer-VLAN TAG (C-TAG) and/or Service-VLAN TAG (S-TAG) PCP/DEI fields as defined in IEEE Std 802.1Q [98] (Customer VLAN TAG (C-TAG) and/or Service VLAN TAG (S-TAG) PCP/DEI field, as defined in IEEE Standard 802.1Q [98 ])

-IP Packet Filter Set, in the case of ethernet indicators IPv4/IPv6 payload (if ethernet indicates IPv4/IPv6 payload, set IP Packet Filter)

Packet Filter Direction (Packet Filter orientation)

Based on this, the technical solution provided in the embodiment of the present invention provides a fusion architecture of two systems, and a TAN system control center is added in the system architecture to implement the modes of identification of service flows of the two systems, interaction of service quality requirements, adaptation of policies, mapping of data packets, and the like, so as to promote better fusion of the two systems, so that a 5G system currently supporting IP data packet transmission and ethernet data packet transmission can well adapt to the transmission quality requirement of the TAN system, instead of being used as only one data transparent transmission line between TAN switches, thereby implementing better fusion of the two systems, and being capable of implementing both convenience of wireless deployment brought by using a wireless network and transmission guarantee of highly reliable deterministic delay provided by the TAN system.

The following describes embodiments of the present invention with reference to the drawings.

In the description, the implementation of the UE, TAN system control center side, and PCF side will be described, wherein SMF will be referred to. Such illustrations do not mean that they must be implemented cooperatively or separately, and actually, when they are implemented separately, they each solve the problem on one side thereof, and when they are used in combination, they achieve a better technical effect.

Fig. 7 is a schematic flowchart of an implementation of a data processing method on the UE side, as shown in the figure, the implementation may include:

step 701, the UE establishes the same IP type session or the same Ethernet type session for the data which are interacted between the same source TAN switch and the same target TAN switch and are packaged based on a preset format;

step 702, the UE sends information related to the 5G session to a TAN system control center, where the TAN system control center is a functional entity that determines the service requirement and the service flow identification information;

step 703, the UE transmits data encapsulated in an IP packet or an ethernet frame based on a predetermined format according to a QoS rule issued by the SMF, where the QoS rule is generated according to the service requirement and the service flow identification information determined by the TAN system control center.

Fig. 8 is a schematic implementation flow diagram of an information determining method at the TAN system control center side, as shown in the figure, the method may include:

step 801, a TAN system control center receives 5G session related information sent by a UE, where the TAN system control center is a functional entity that determines a service requirement and service flow identification information;

step 802, the TAN system control center determines the service requirement and the service flow identification information according to the service transmission quality requirement, the control information of the TAN system and the 5G session related information, wherein the service requirement and the service flow identification information are used for generating a data QoS rule which is encapsulated in an IP packet or an ethernet frame by the transmission of the downlink UE and is based on a predetermined format.

Fig. 9 is a schematic implementation flow diagram of a rule generating method at a PCF side, as shown in the figure, the method may include:

step 901, PCF generates PCC Rule for UE to perform QFI mapping according to the QoS Rule;

and step 902, the PCF sends the PCC Rule to the SMF.

In the technical scheme provided by the embodiment of the invention, a TAN system control center is added in a system architecture to realize the modes of identifying the service flows of the two systems, interacting the service quality requirements, adapting the strategy, mapping the data packet and the like, thereby promoting the better fusion of the two systems. The implementation of the capabilities required by each network function is explained below.

1、UE。

In the implementation, the data encapsulated based on the predetermined format for encapsulating the IP packet or the ethernet frame is to encapsulate the data encapsulated based on the predetermined format in the payload of the IP packet or the ethernet frame, and map a field indicating a data type or a data priority in the TAN header field into the IP header field.

In implementation, a field indicating a data type or a data priority in the TAN header field is mapped into a type of service, or traffic class type, in the IP header field, or a VLAN tag in the MAC header field of the ethernet frame.

Specifically, the UE encapsulates received data encapsulated based on a predetermined format, for example, TAN data, in payload of an IP packet or an ethernet frame, and a field indicating a data type or a data priority in a TAN header field is mapped to type of service or traffic class type in the IP header field, or VLAN tag in a MAC header field of the ethernet frame.

UE source address, TAN header field information.

Specifically, the UE sends 5G session-related information to the TAN system control center, where the information may include a UE source address (UE IP address or UE MAC address), TAN header information, and the like.

In implementation, after receiving the QoS Rule sent by the SMF, the UE further includes:

QFI mapping is performed according to QoS Rule.

In implementation, the QoS Rule includes a Packet Filter;

QFI mapping according to QoS Rule is QFI mapping according to Packet Filter.

Specifically, the UE receives the SMF and sends a new QoS Rule (Packet Filter in the Rule includes an IP address of the UE, TAN header information, and the like), and performs QFI (QoS Flow Identifier) mapping according to the Packet Filter.

In an implementation, the method may further include:

In the specific implementation, the method further comprises the following steps:

Specifically, the UE receives the data packaged based on the predetermined format, and triggers different session establishment requests according to different data types packaged based on the predetermined format; in the case of ethernet sessions, the UE needs to construct different virtual MAC addresses for different sessions to distinguish different types of data encapsulated based on predetermined formats transmitted on different sessions.

In an implementation, the method further comprises the following steps:

and the UE distinguishes the data types based on the IP header field or the Ethernet header field mapped by the header field of the data packaged based on the predetermined format and then uses the corresponding QoS.

Specifically, the description will be given in the first and second embodiments.

In the following examples, TAN data will be described as an example.

2. TAN system control center.

Specifically, the following may be mentioned:

the TAN system control center determines the service requirement and the service flow identification information (such as the UE source address, the IP header field or the MAC header field mapped with the TAN header field information, etc.) according to the service transmission quality requirement, the control information of the TAN system, and the 5G session related information.

The TAN system control center determines the service requirement and the service flow identification information (such as the UE source address, TAN header field information, etc.) according to the service transmission quality requirement, the control information of the TAN system, and the 5G session related information.

The TAN system control center determines the service requirement and the service flow identification information (such as a UE source address (a UE IP address or a UE virtual MAC address) in combination with the service transmission quality requirement, the control information of the TAN system, and the 5G session related information.

3、PCF。

In implementation, the QoS Rule includes a Packet Filter;

and the PCC Rule is used for the UE to carry out QFI mapping according to the Packet Filter.

In implementation, the service data flow filter packet identification information included in the QoS Rule includes a UE source address and TAN header field information.

Specifically, the PCF generates a PCC Rule and sends the PCC Rule to the SMF (where the service data flow filter (servicedata flow filter) packet identification information included in the Rule includes the UE source address, the TAN header field information, and the like).

The following is an example.

The first embodiment is as follows:

in this example, the UE establishes the same IP or ethernet type session for the TAN data, and distinguishes the data types to use different QoS based on the IP header field or the ethernet header field mapped by the TAN header field.

Fig. 10 is a schematic diagram of a TAN system and 5G network convergence scheme 1, where the TAN system and 5G network scheme are as shown in fig. 10, a UE establishes a same IP or ethernet type session for TAN data interacted between a same source TAN switch and a destination TAN switch, and encapsulates the received TAN data in a payload of an IP message or an ethernet frame, a field indicating a data type or a data priority in a TAN header field is mapped to a type of service or traffic class type in the IP header field or a VLAN tag in an MAC header field of the ethernet frame, and different TAN data types are distinguished by the IP header field or the ethernet header field mapped by the TAN header field to provide transmission guarantees for the TAN data types using different QoS.

The TAN system control center collects service information, TAN switch control information, and 5G session related information, and generates service transmission requirements of flows of different data and Flow identification information Flow description(s) (Flow description) for distinguishing different TAN data types encapsulated in an IP packet or an ethernet frame.

The TAN system Control center sends the service requirement to PCF strategy Charging Function of 3GPP, generates PCC (strategy and Charging Control) rule through PCF (strategy Control Function), and returns to SMF to UE, RAN and UPF to realize different QoS Control of different TAN data types.

Fig. 11 is a schematic diagram of an implementation flow of the TAN system and the 5G network convergence scheme 1, as shown in the figure, the implementation flow may include:

step 1100, the UE receives the TAN data and triggers a session establishment request;

step 1101, a session establishment flow, wherein the network allocates an IP address for the UE requesting the IP session;

step 1102, the UE encapsulates the received TAN data in a payload of an IP packet or an ethernet frame, and a field indicating a data type or a data priority in a TAN header field is mapped to a type of service or traffic class type in the IP header field or a VLAN tag in an ethernet frame MAC header field.

Step 1103, the UE sends 5G session related information to the TAN system control center, including the UE source address (UE IP address or UE MAC address), the type of service/traffic class type in the IP header after mapping with the TAN header information, or VLAN tag information in the ethernet frame MAC header;

step 1104, the TAN system control center determines the service requirement and the service flow identification information (such as the UE source address, the IP header field or the MAC header field mapped with the TAN header field information, etc.) according to the service transmission quality requirement, the control information of the TAN system, and the 5G session related information;

step 1105, sending service quality requirement of different data to PCF (Flow description(s) includes UE source address, IP header field or MAC header field mapped with TAN header field information)

Step 1106, PCF generates PCC Rule and sends it to SMF (service data flow filter data packet identification information includes UE source address, type of service/traffic class type in IP header field or VLAN tag in MAC header field, etc.)

Step 1107a, SMF sends QoS Rule to UE (Packet Filter includes UE IP address, type of service/traffic class type in IP header field or VLAN tag in MAC header field)

Step 1107b, SMF sends QoS Profile to RAN;

step 1107c, SMF sends UL/DL PDR to UPF (SDF template includes UE source address, type of service/traffic class type in IP header field or VLAN tag in MAC header field, etc.);

step 1108, the TAN data encapsulated in IP packets or ethernet frames is transmitted using the new QoS rules.

In step 1102, fig. 12 is a schematic diagram of mapping an IP header field and a TAN header field, where a manner in which a field indicating a data type or a data priority in the TAN header field is mapped to a type of service/traffic class type in the IP header field can be illustrated, and a channel protocol field in the TAN header field is mapped to a type of service/traffic class type in the IP header field. The specific mapping method is as follows:

the PPP mapping that the field of the control information with higher priority in the TAN header field maps to the first 3 bits of the IPv4 packet with type of service 8 and indicates priority may be 010 Immediate transmission (immedate), 011 Flash transmission (Flash), 100 Flash over Flash (Flash), etc., the data is more important when the value is larger, the mapping of the last 5 bits of DTRCO may be D-latency 1 (0: normal, 1: delay as small as possible), T-throughput 1 (0: normal, 1: traffic as large as possible), R-reliability 1 (0: normal, 1: reliability as large as possible), M-transmission cost 0 (0: normal, 1: cost as small as possible), and the last bit is reserved as 0.

For the PPP that represents the priority of the packet with the first 3 bits of 8 type of service, which is mapped to IPv4 by the field representing the lower priority of the common data information in the TAN header field, the PPP may be 000 common (Routine), the data is more important when the value is larger, the mapping of the last 5 bits DTRCO may be D delay 0 (0: common, 1: delay as small as possible), T throughput 0 (0: common, 1: traffic as large as possible), R reliability 0 (0: common, 1: reliability as large as possible), M transmission cost 1 (0: common, 1: cost as small as possible), and the last bit is kept constant at 0.

Fig. 13 is a schematic diagram illustrating mapping between a MAC header field and a TAN header field, where a field indicating a data type or a data priority in the TAN header field is mapped to a Tag in the MAC header field of an ethernet frame in a manner as shown in fig. 13, and a tunneling protocol field in the TAN header field is mapped to the Tag in the MAC header field.

For example, for the field of the control information indicating higher priority in the TAN header field, mapping to the PCP field of Tag indicating 3 bits of priority in the MAC frame header field or constructing a VLAN ID field of 12 bits of 5G network, where each entity negotiates for consistency and virtualization.

The PCP field of 3bit mapped to Tag in the MAC frame header field for the field indicating higher priority control information in the TAN header field is 7, or 0x001 indicating a high priority virtual VLAN ID.

The PCP field of 3 bits mapped to Tag in the MAC frame header field for the field indicating higher priority control information in the TAN header field is 3, or 0x002 indicating a high priority virtual VLAN ID.

Example two:

in this example, the UE establishes the same IP or ethernet type session for TAN data, and distinguishes the data types by using different QoS through the combination of the IP header field and the TAN header field.

Fig. 14 is a schematic diagram of a TAN system and a 5G network convergence scheme 2, and specific implementation contents are shown in the figure, which can also refer to the description in the first embodiment.

Fig. 15 is a schematic flow diagram of an implementation process of the TAN system and the 5G network convergence scheme 2, as shown in the figure, the following may be implemented:

step 1500, the UE receives the TAN data and triggers a session establishment request;

step 1501, a session establishment flow, wherein the network allocates an IP address for the UE requesting the IP session;

step 1502, UE sends 5G session related information including UE source address (UE IP address or UE MAC address), TAN header information, etc. to TAN system control center;

step 1503, the TAN system control center determines the service requirement and the service flow identification information (such as the UE source address, TAN header field information, etc.) according to the service transmission quality requirement, the control information of the TAN system, and the 5G session related information;

step 1504, sending service quality requirements of different data to PCF (Flow description(s) includes UE source address, TAN header information, etc.);

step 1505, PCF generates PCC Rule and sends it to SMF (service data flow filter packet identification information includes UE source address, TAN header field information, etc.);

step 1506a, SMF sends QoS Rule (Packet Filter includes UE IP address, TAN header field information, etc.) to UE, and instructs UE to perform QFI mapping according to Packet Filter;

step 1506b, SMF sends QoS Profile (QoS Profile) to RAN;

step 1506c, the SMF sends UL/DL PDR (uplink/downlink PDR; PDR: packet Detection Rule, packet Detection Rule) (SDF template; SDF: service Data Flow) including UE source address, TAN header field information, etc.) to the UPF, and instructs the UPF to perform QFI mapping according to the SDF template;

step 1507, TAN data encapsulated in IP packets or ethernet frames is transmitted using the new QoS rules.

Wherein, the service data flow Filter, packet Filter, and IP Packet Filter Set used for QoS control in steps 1505, 1506a, and 1506c includes a field indicating data type or data priority in the TAN frame header added by the entry, for example, a channel protocol field in the TAN frame header:

-Source/destination IP address or IPv6 prefix.

-Source/destination port number.

-Protocol ID of the protocol above IP/Next header type.

-Type of Service(TOS)(IPv4)/Traffic class(IPv6)and Mask.

-Flow Label(IPv6).

-Security parameter index.

-Packet Filter direction.

a field in the TAN header indicating the type of data or priority of the data (e.g. a tunneling protocol field in the TAN header).

The Ethernet Packet Filter Set for QoS control contains the following items:

-Source/destination MAC address.

-Ethertype as defined in IEEE 802.3.

-Customer-VLAN tag(C-TAG)and/or Service-VLAN tag(S-TAG)VID fields as defined in IEEE Std 802.1Q[98].

-Customer-VLAN tag(C-TAG)and/or Service-VLAN tag(S-TAG)PCP/DEI fields as defined in IEEE Std 802.1Q[98].

-IP Packet Filter Set,in the case that Ethertype indicates IPv4/IPv6 payload.

-Packet Filter direction.

Example three:

in this example, the UE requests different IP or ethertype sessions for different types of TAN data types, allocates different IP addresses or different virtual MAC addresses for different sessions, and uses no QoS for different sessions.

Fig. 16 is a schematic diagram of a TAN system and a 5G network convergence scheme 3, and specific implementation contents are shown in the figure, which can also refer to the description in the first embodiment.

Fig. 17 is a schematic flow chart of implementation of the TAN system and 5G network convergence scheme 3, as shown in the figure, the following may be implemented:

step 1700, the UE receives the TAN data, triggers different session establishment requests according to different types of TAN data, and if the session is an ethernet session, the UE needs to construct different virtual MAC addresses for different sessions to distinguish different types of TAN data transmitted on different sessions;

step 1701, a session establishment flow, wherein the network allocates an IP address for the UE requesting the IP session;

step 1702, the UE sends 5G session related information to the TAN system control center, where the information includes a UE source address (UE IP address or UE virtual MAC address) and the like;

step 1703, the TAN system control center determines the service requirement and the service flow identification information (such as a UE source address (UE IP address or UE virtual MAC address)) in combination with the service transmission quality requirement, the control information of the TAN system, and the 5G session related information;

step 1704, sending service quality requirements of different data to the PCF (Flow description(s) includes a UE source address, etc.);

step 1705, the PCF generates PCC Rule and sends it to the SMF (service data flow filter packet identification information includes UE source address, etc.);

step 1706a, the SMF sends QoS Rule (Packet Filter includes UE IP address, etc.) to the UE, and instructs the UE to perform QFI mapping according to the Packet Filter;

step 1706b, the SMF sends QoS Profile to the RAN;

step 1706c, the SMF sends UL/DL PDR (SDF template includes UE source address, etc.) to the UPF, and instructs the UPF to perform QFI mapping according to the SDF template;

step 1707, TAN data encapsulated in IP packets or ethernet frames is transmitted using the new QoS rules.

Based on the same inventive concept, the embodiment of the present invention further provides a user equipment, a TAN system control center, a PCF, and a computer-readable storage medium, and because the principles of solving the problems of these devices are similar to the data processing method and the information determining method, the implementation of these devices may refer to the implementation of the methods, and the repeated details are not repeated.

When the technical scheme provided by the embodiment of the invention is implemented, the implementation can be carried out as follows.

Fig. 18 is a schematic structural diagram of a UE, and as shown in the figure, the UE includes:

the processor 1800 reads the program stored in the memory 1820 and executes the following processes:

a transceiver 1810 for receiving and transmitting data under the control of the processor 1800.

UE source address, TAN header field information.

QFI mapping is performed according to QoS Rule.

In implementation, the QoS Rule includes Packet Filter;

QFI mapping according to QoS Rule is performed according to Packet Filter.

In an implementation, the method further comprises the following steps:

In fig. 18, among other things, the bus architecture may include any number of interconnected buses and bridges with various circuits including one or more processors, represented by the processor 1800, and memory, represented by the memory 1820. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1810 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 1830 may also be an interface capable of interfacing externally to a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1800 is responsible for managing the bus architecture and general processing, and the memory 1820 may store data used by the processor 1800 in performing operations.

The embodiment of the invention also provides a UE, which comprises:

the system comprises a UE sending module, a TAN system control center and a service flow identification module, wherein the UE sending module is used for sending information related to a 5G session to the TAN system control center, and the TAN system control center is a functional body for determining service requirements and service flow identification information;

In an implementation, the UE transmission module is further configured to map a field indicating a data type or a data priority in the TAN header field into a type of service, or a traffic class type, or a VLAN tag in the MAC header field of the ethernet frame in the IP header field.

UE source address, TAN header field information.

In implementation, the UE transmission module is further configured to receive the QoS Rule including Packet Filter; QFI mapping according to QoS Rule is QFI mapping according to Packet Filter.

In an implementation, the UE transmission module is further configured to differentiate data types based on the IP header field or the ethernet header field mapped to the header field of the data encapsulated based on the predetermined format and then use the corresponding QoS.

For convenience of description, each part of the above-described apparatus is separately described as being functionally divided into various modules or units. Of course, the functionality of the various modules or units may be implemented in the same one or more pieces of software or hardware in the practice of the invention.

Fig. 19 is a schematic structural diagram of a TAN system control center, as shown, the TAN system control center includes:

the processor 1900, which reads the program in the memory 1920, executes the following processes:

receiving 5G session related information sent by UE, wherein the TAN system control center is a function body for determining service requirements and service flow identification information;

a transceiver 1910 for receiving and transmitting data under the control of processor 1900.

In fig. 19, among other things, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1900 and various circuits of memory represented by memory 1920 linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1910 may be multiple elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 1900 is responsible for managing the bus architecture and general processing, and the memory 1920 may store data used by the processor 1900 when executing operations.

The embodiment of the invention also provides a TAN system control center, which comprises:

a TAN system control center receiving module, configured to receive 5G session related information sent by a UE, where the TAN system control center is a function body that determines a service requirement and service flow identification information;

In an implementation, the TAN system control center determining module is further configured to determine service flow identification information including one or a combination of the following information:

For convenience of description, each part of the above-described apparatus is separately described as being functionally divided into various modules or units. Of course, the functionality of the various modules or units may be implemented in the same one or more pieces of software or hardware in practicing the invention.

Fig. 20 is a schematic structural diagram of a PCF, as shown, the PCF includes:

the processor 2000, which is used to read the program in the memory 2020, executes the following processes:

generating a PCC Rule used for the UE to perform QFI mapping according to the QoS Rule;

sending the PCC Rule to the SMF;

a transceiver 2010 for receiving and transmitting data under the control of the processor 2000.

In implementation, the QoS Rule includes a Packet Filter;

In fig. 20, among other things, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 2000, and various circuits, represented by memory 2020, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 2010 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 2000 is responsible for managing the bus architecture and general processing, and the memory 2020 may store data used by the processor 2000 in performing operations.

An embodiment of the present invention further provides a PCF, including:

the PCF generation module is used for generating PCC Rule which is used for QFI mapping of the UE according to the QoS Rule;

and the PCF sending module is used for sending the PCC Rule to the SMF.

In implementation, the PCF generation module is further configured to generate the QoS Rule including Packet Filter; and the PCC Rule is used for the UE to carry out QFI mapping according to the Packet Filter.

In implementation, the PCF generation module is further configured to generate the QoS Rule that the service data flow filter packet identification information includes a UE source address and TAN header field information.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program for executing one of the data processing method and the information determining method or a combination thereof is stored in the computer-readable storage medium.

The specific implementation may refer to implementation of one of a data processing method at the UE side, an information determination method at the TAN system control center side, or a combination thereof.

In summary, the technical solution provided in the embodiments of the present invention enables the currently supported 5G system for IP packet transmission and ethernet packet transmission to adapt to the transmission quality requirement of the TAN system well, instead of being used as only one data transparent transmission line between TAN switches, thereby achieving better fusion of the two systems, and not only utilizing the convenience of wireless deployment brought by the wireless network, but also achieving transmission guarantee of highly reliable deterministic delay provided by the TAN system.

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

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A data processing method, comprising:

user Equipment (UE) establishes the same IP type session or the same Ethernet type session for the data which are interacted between the TAN switch of the same source time clear network and the TAN switch of the same destination and are packaged based on a preset format;

and the UE transmits data encapsulated in an IP message or an Ethernet frame based on a predetermined format according to a quality of service (QoS) rule issued by a Session Management Function (SMF), wherein the QoS rule is generated according to the service requirement and the service flow identification information determined by the TAN system control center.

2. The method of claim 1, wherein encapsulating the data encapsulated based on the predetermined format of the IP packet or the ethernet frame encapsulates the data encapsulated based on the predetermined format in a payload of the IP packet or the ethernet frame, and a field indicating a data type or a data priority in a TAN header field is mapped to the IP header field.

3. The method of claim 2, wherein a field in the TAN header field indicating a data type or data priority is mapped into a service type of service, or a transport class type traffic class type, or an ethernet frame media intervening control, MAC, header field in the IP header field in a virtual local network tag, VLAN tag.

4. The method of claim 1, wherein the 5G session related information comprises one or a combination of:

UE source address, TAN header field information.

5. The method of claim 1, wherein after receiving the QoS Rule, sent by the SMF, the UE further comprises:

and carrying out QFI mapping according to the QoS Rule.

6. The method of claim 5, wherein the QoS Rule comprises a Packet Filter;

QFI mapping according to QoS Rule is QFI mapping according to Packet Filter.

7. The method of claim 1, further comprising:

8. The method of claim 7, further comprising:

9. The method of claim 1, further comprising:

10. The method of claim 1, wherein the QoS rule for QoS control is determined by a field indicating a data type or a data priority in a frame header of the data encapsulated based on the predetermined format.

11. A method according to any one of claims 1 to 10, wherein the data encapsulated based on the predetermined format is TAN data.

12. An information determination method, comprising:

and the TAN system control center determines the service requirement and the service flow identification information by combining the service transmission quality requirement, the control information of the TAN system and the 5G session related information, wherein the service requirement and the service flow identification information are used for generating a data QoS rule which is encapsulated in an IP message or an Ethernet frame by the transmission of the issued UE and is based on the predetermined format.

13. The method of claim 12, wherein the traffic flow identification information comprises one or a combination of the following information:

14. A UE, comprising:

establishing the same IP type session or the same Ethernet type session for the data which are interacted between the TAN switch of the same source and the TAN switch of the same destination and are encapsulated based on a preset format;

transmitting data encapsulated in an IP message or an Ethernet frame based on a predetermined format according to a QoS rule issued by an SMF, wherein the QoS rule is generated according to the service requirement and the service flow identification information determined by the TAN system control center;

15. A UE, comprising:

16. A TAN system control center, comprising:

a processor for reading the program in the memory and executing the following processes:

determining service requirements and service flow identification information by combining service transmission quality requirements, control information of a TAN system and the 5G session related information, wherein the service requirements and the service flow identification information are used for generating a data QoS rule which is packaged in an IP message or an Ethernet frame by transmission of the issued UE and is based on predetermined format;

17. A TAN system control center, comprising:

and the TAN system control center determining module is used for determining the service requirement and the service flow identification information by combining the service transmission quality requirement, the control information of the TAN system and the 5G session related information, wherein the service requirement and the service flow identification information are used for generating a data QoS rule which is transmitted and encapsulated in an IP message or an Ethernet frame and encapsulated based on a preset format, and is used for issuing UE.

18. A computer-readable storage medium, characterized in that it stores a computer program for executing the method of any one of claims 1 to 13.