CN115242642A - Communication method, terminal, core network element and computer readable storage medium - Google Patents

Communication method, terminal, core network element and computer readable storage medium Download PDF

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Publication number
CN115242642A
CN115242642A CN202110442194.0A CN202110442194A CN115242642A CN 115242642 A CN115242642 A CN 115242642A CN 202110442194 A CN202110442194 A CN 202110442194A CN 115242642 A CN115242642 A CN 115242642A
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control information
terminal
access
local policy
communication method
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王诚
袁健
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ZTE Corp
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ZTE Corp
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Priority to CN202110442194.0A priority Critical patent/CN115242642A/en
Priority to PCT/CN2022/079111 priority patent/WO2022222612A1/en
Publication of CN115242642A publication Critical patent/CN115242642A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0893—Assignment of logical groups to network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0894—Policy-based network configuration management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a communication method, a terminal, a core network element and a storage medium, wherein the communication method comprises the following steps: the method comprises the steps that a terminal generates local strategy management and control information according to a service scene, the local strategy management and control information comprises identification information used for indicating access modes supported by the terminal, the local strategy management and control information is sent to a core network element, the core network element generates access strategy management and control information according to the identification information in the local strategy management and control information, the access strategy management and control information sent by the core network element is obtained, and service flow is processed according to the access strategy management and control information. The access policy management and control information is generated according to the local policy management and control information which is sent by the terminal and indicates the identification information of the access mode supported by the terminal, so that the core network element generates the access policy management and control information to enable the terminal to process the service flow through a proper access technology, and the requirement of the service flow required to be transmitted by the terminal on the network can be met.

Description

Communication method, terminal, core network element and computer readable storage medium
Technical Field
Embodiments of the present invention relate to, but not limited to, the field of communications, and in particular, to a communication method, a terminal, a core network element, and a computer-readable storage medium.
Background
To address the challenges of wireless broadband technologies and to maintain the leading advantages of third Generation Partnership project (3 GPP) networks, the 3GPP standards group has established a Next Generation mobile communication System (Next Generation System) network architecture referred to as a 5th-Generation (5G) network architecture.
The 5G Network architecture can support not only a Core Network (CN) defined by 3GPP standards group, for example, a Core Network accessed by Long Term Evolution (LTE) technology, radio Access Network (RAN) technology, etc., but also a Core Network accessed by Non-3GPP conversion function (Non-3 GPP Interworking function, n3 iwf) or Next Generation Access Gateway (NGPDG) by Non-third Generation Partnership project (Non-3 GPP) Access technology.
Based on the multiple access technology supported by the 5G network architecture, a multiple access Protocol Data Unit (PDU) session (which may also be referred to as a Packet Data Unit (PDU) session) is introduced. For example, a new generation of multiple Access Traffic switching and distribution management technology (Access Traffic Steering, switch and distribution, ATSSS) formulated in a 5G network architecture may enable a terminal to simultaneously use 5G wireless data and WiFi data, where the existing ATSSS issues a distribution policy to the terminal through a core network element according to an Access network condition, so that the terminal accesses a network according to the issued distribution policy and completes a service flow management and control operation, but since the requirements of the terminal on corresponding networks are different under different application conditions, the existing ATSSS cannot meet the requirements.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The embodiments of the present invention mainly aim to provide a communication method, a terminal, a core network element, and a computer-readable storage medium, which can meet the requirements of the terminal for a network.
In a first aspect, an embodiment of the present invention provides a communication method, which is applied to a terminal, and the communication method includes:
determining a service scene according to the service flow;
generating local policy management and control information according to the service scene, wherein the local policy management and control information comprises identification information used for indicating an access mode supported by the terminal;
sending the local policy control information to a core network element, so that the core network element generates access policy control information according to the identification information in the local policy control information;
acquiring the access strategy management and control information sent by the core network element;
and processing the service flow according to the access strategy management and control information.
In a second aspect, an embodiment of the present invention further provides a terminal, including: memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the communication method according to the first aspect when executing the computer program.
In a third aspect, an embodiment of the present invention further provides a communication method, which is applied to a core network element, where the communication method includes:
acquiring local policy control information from a terminal, wherein the local policy control information is control information generated by the terminal according to a service scene determined by a service flow, and the local policy control information comprises identification information used for indicating an access mode supported by the terminal;
generating access policy management and control information according to the identification information in the local policy management and control information;
and sending the access strategy management and control information to the terminal so that the terminal processes the service flow according to the access strategy management and control information.
In a fourth aspect, an embodiment of the present invention further provides a core network element, including: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the communication method according to the third aspect when executing the computer program.
In a fifth aspect, a computer-readable storage medium stores computer-executable instructions for performing the communication method of the first aspect or for performing the communication method of the third aspect.
The embodiment of the invention comprises the following steps: determining a service scene according to the service flow; generating local policy management and control information according to a service scene, wherein the local policy management and control information comprises identification information used for indicating an access mode supported by a terminal; sending local policy control information to a core network element, so that the core network element generates access policy control information according to identification information in the local policy control information; acquiring access strategy management and control information sent by a core network element; and processing the service flow according to the access strategy management and control information. According to the technical scheme of the embodiment of the invention, the terminal can determine a service scene according to the requirement of service flow transmission on the network, then generates local policy management and control information for indicating identification information of an access mode supported by the terminal according to the service scene and sends the local policy management and control information to the core network element, so that the core network element can generate access policy management and control information according to the identification information in the local policy management and control information; and then acquiring access policy management and control information sent by a core network element and processing the service flow according to the access policy management and control information, wherein the access policy management and control information is generated according to local policy management and control information of identification information of an access mode supported by an indication terminal sent by the terminal, so that the core network element can generate the access policy management and control information according to the requirements of the terminal on the corresponding network in different scenes and send the access policy management and control information to the terminal so that the terminal can process the service flow through a proper access technology, and the requirements of the service flow required to be transmitted by the terminal on the network can be met.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Fig. 1 is a schematic diagram of a system architecture for performing a communication method according to an embodiment of the present invention;
fig. 2 is a flowchart of a terminal-side communication method according to an embodiment of the present invention;
fig. 3 is a flowchart of a terminal-side communication method according to another embodiment of the present invention;
fig. 4 is a flowchart of a low latency scenario of a terminal-side communication method according to an embodiment of the present invention;
fig. 5 is a flowchart of the priority of a communication method at a terminal side according to an embodiment of the present invention;
fig. 6 is a flowchart of an active/standby network scenario of a terminal-side communication method according to an embodiment of the present invention;
fig. 7 is a flowchart of a communication method on a network element side of a core network according to an embodiment of the present invention;
fig. 8 is a flowchart of a low latency scenario of a communication method at a network element side of a core network according to an embodiment of the present invention;
fig. 9 is a flowchart of a priority scenario of a communication method on a network element side of a core network according to an embodiment of the present invention;
fig. 10 is a flowchart of an active/standby network scenario of a communication method at a network element side of a core network according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that although functional blocks are partitioned in a schematic diagram of an apparatus and a logical order is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the partitioning of blocks in the apparatus or the order in the flowchart. The terms "first," "second," and the like in the description, in the claims, or in the foregoing drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The conventional ATSSS issues a offloading policy to a terminal through a core network element according to an access network condition, so that the terminal accesses the network according to the offloading policy and completes a service flow control operation.
Based on the above situation, an embodiment of the present invention provides a communication method, a terminal, a core network element, and a computer-readable storage medium, where the communication method includes, but is not limited to, the following steps: the terminal can determine a service scene according to the requirement of service stream transmission on the network, then generate local policy control information for indicating identification information of an access mode supported by the terminal according to the service scene, and send the local policy control information to the core network element, so that the core network element can generate the access policy control information according to the identification information in the local policy control information; and then acquiring access policy management and control information sent by a core network element and processing the service flow according to the access policy management and control information, wherein the access policy management and control information is generated according to local policy management and control information of identification information of an access mode supported by an indication terminal sent by the terminal, so that the core network element can generate the access policy management and control information according to the requirements of the terminal on the corresponding network in different scenes and send the access policy management and control information to the terminal so that the terminal can process the service flow through a proper access technology, and the requirements of the service flow required to be transmitted by the terminal on the network can be met.
The embodiments of the present invention will be further explained with reference to the drawings.
As shown in fig. 1, fig. 1 is a schematic diagram of a system architecture platform 100 for performing a communication method according to an embodiment of the present invention.
In the example of fig. 1, the system architecture platform 100 is provided with a processor 110 and a memory 120, wherein the processor 110 and the memory 120 may be connected by a bus or other means, and fig. 1 illustrates the connection by the bus as an example.
The memory 120, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer-executable programs. Further, the memory 120 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 120 optionally includes memory located remotely from processor 110, which may be connected to the system architecture platform via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
It will be understood by those skilled in the art that the system architecture platform may be applied to a 5G communication network system, a mobile communication network system evolved later, and the like, and the embodiment is not limited thereto.
Those skilled in the art will appreciate that the system architecture platform illustrated in FIG. 1 does not constitute a limitation on embodiments of the invention, and may include more or fewer components than those illustrated, or some components may be combined, or a different arrangement of components.
In the system architecture platform shown in fig. 1, the processor 110 may invoke a traffic flow management program stored in the memory 120 to perform a communication method.
Based on the above system architecture platform, the following provides various embodiments of the communication method of the present invention.
As shown in fig. 2, fig. 2 is a flowchart of a communication method according to an embodiment of the present invention, the communication method is applied to a terminal, and the communication method includes, but is not limited to, step S100, step S200, step S300, step S400, and step S500.
Step S100, determining a service scene according to the service flow;
step S200, generating local policy management and control information according to a service scene, wherein the local policy management and control information comprises identification information used for indicating an access mode supported by a terminal;
step S300, local policy control information is sent to a core network element, so that the core network element generates access policy control information according to identification information in the local policy control information;
step S400, obtaining access strategy management and control information sent by a core network element;
and step S500, processing the service flow according to the access strategy management and control information.
Specifically, the terminal may determine a service scenario according to a requirement for the network according to service stream transmission, then generate local policy control information for indicating identification information of an access manner supported by the terminal according to the service scenario, and send the local policy control information to a core network element, so that the core network element generates the access policy control information according to the identification information in the local policy control information; and then acquiring access policy management and control information sent by a core network element and processing the service flow according to the access policy management and control information, wherein the access policy management and control information is generated according to local policy management and control information of identification information of an access mode supported by an indication terminal sent by the terminal, so that the core network element can generate the access policy management and control information according to the requirements of the terminal on the corresponding network in different scenes and send the access policy management and control information to the terminal so that the terminal can process the service flow through a proper access technology, and the requirements of the service flow required to be transmitted by the terminal on the network can be met.
In an embodiment, the terminal can apply the ATSSS rule of the 5G network, and to improve the auxiliary decision making capability of the terminal, the ATSSS rule of the terminal may be optimized, and a field describing the ATSSS capability in the signaling (i.e., identification information indicating an access manner supported by the terminal) is extended, so that the terminal has a capability of selecting the ATSSS rule through an application scenario, that is, the terminal may determine a service scenario according to a need of a service flow, then generate local policy management and control information including the signaling describing the ATSSS capability field according to the service scenario and send the local policy management and control information to a core network element, and the core network element can generate access policy management and control information according to the signaling in the local policy management and control information; and then acquiring access strategy management and control information sent by a core network element and processing the service flow according to the access strategy management and control information, wherein the access strategy management and control information is generated according to local strategy management and control information which is sent by a terminal and comprises signaling describing an ATSSS capability field, so that the core network element can generate the access strategy management and control information according to the requirements of the terminal on the corresponding network under different scenes, and the access strategy management and control information is issued to the terminal so that the terminal can process the service flow through a proper access technology, and the requirements of the service flow required to be transmitted by the terminal on the network can be met.
It should be noted that, the field of the ATSSS capability may add a field indicating whether a Priority-Based access manner is supported, a field indicating whether a Load-Balancing access manner is supported, a field indicating whether a low-latency (small Delay) access manner is supported, or a field indicating whether an Active-Standby network (Active-Standby) access manner is supported, which is not specifically limited in this embodiment.
It should be noted that the service scenario may include at least one of the following scenarios: a maximum rate scenario; a low-latency scenario; a priority scenario; master standby network scenarios. The embodiment does not specifically limit the service scenario, and may also be other scenarios.
Referring to fig. 3, for an embodiment in which the terminal applies the ssss rule, a specific communication method is as follows:
step S301, judging whether the terminal supports the ATSSS rule, if so, executing step S302, otherwise, ending;
step S302, acquiring an ATSSS rule sent by a core network element to a terminal;
step S303, analyzing the ATSSS rule, judging whether the ATSSS rule is a Load-Balancing rule (the proportion of any one of 3GPP or non-3GPP in the Load-Balancing rule is not 100% or is not 0), if yes, executing step S304, and if not, finishing;
step S304, determining that the service scene is the maximum rate scene, judging whether the frequency band information of WiFi connected with the terminal is a 5G frequency band, if so, executing step S305, and if not, finishing;
step S305, the terminal reads the frequency band information of the current cell, records the frequency band information of the current cell, judges whether the frequency band information of the current cell is an n79 frequency band, if so, executes step S306, and if so, executes step S309;
step S306, judging whether the terminal enters the n79 frequency band, if so, executing step S307, otherwise, executing step S308;
step S307, the WiFi frequency band information and the current cell frequency band information accord with interference conditions, an ATSSS capability reporting and modifying mechanism is triggered, and local strategy management and control information is sent to an SPF unit of a core network to indicate the Load-Balancing capability of the terminal which does not support the ATSSS rule;
step S308, if the WiFi frequency band information and the current cell frequency band information do not accord with the interference condition, triggering an ATSSS capability reporting and modifying mechanism, and sending local strategy management and control information to an SPF unit of a core network to indicate the Load-Balancing capability of the terminal for supporting the ATSSS rule;
step S309, monitoring cell switching events, if the cell covering the terminal is switched, recording the frequency band information of the current cell;
in step S310, it is determined whether the frequency band of the frequency band information changes, if so, step S305 is performed, and if not, step S309 is performed.
Specifically, the access technologies supported by the terminal may include a first access technology and a second access technology, where the first access technology may be a 3GPP access technology, and the second access technology may be a Non-3GPP access technology, and the frequency band information of the first access technology and the frequency band information of the second access technology are obtained, and when the frequency band information of the first access technology and the frequency band information of the second access technology meet an interference condition, for example: determining that the service scenario is a maximum rate scenario, the frequency band information of the first access technology is an n79 frequency band, and the frequency band information of the second access technology is also an n79 frequency band, so that the frequency band information of the first access technology and the frequency band information of the second access technology can be considered to meet the interference condition; at this time, the local policy management and control information may be generated according to the maximum rate scenario, where the access manner supported by the terminal in the identification information includes at least one of the following: a low delay access mode; a priority access mode; the master/standby network access mode may also consider that the terminal does not support the Load-Balancing capability of the ATSSS rule. When the frequency band information of the first access technology and the frequency band information of the second access technology do not accord with the interference condition, the service scene can be determined to be a maximum rate scene, then local policy control information is generated according to the maximum rate scene, and the access mode supported by the terminal in the identification information is a balanced Load access mode, namely the terminal supports the Load-Balancing capability of the ATSSS rule.
It can be understood that the interference condition refers to that when the terminal utilizes the ATSSS technology, especially in a scenario where wireless data (3 GPP access technology) connection and WiFi (Non-3 GPP access technology) connection are shared, if a frequency band of the wireless data connection is close to a frequency band of WiFi, interference may be generated when the terminal simultaneously operates on the same terminal, resulting in a decrease in transmission rate of two channels, for example, interference may occur in a WiFi 5G frequency band and a n79 frequency band of 5G, since uplink and downlink of the WiFi 5G frequency band operate at 5.150-5.835GHz frequency, and uplink and downlink of n79 operate at 4.4-5.0GHz frequency, and two groups of frequency bands are very close to each other, and mutual interference may be generated; interference exists between a 2.4G frequency band of WiFi and an n41 frequency band of 5G, the uplink and downlink of the 2.4G frequency band of WiFi work at the frequency of 2.4-2.4835GHz, and the uplink and downlink of n41 work at the frequency of 2.496-2.690 GHz; if the WiFi and 5G wireless data connections have data concurrence, that is, are in the "Load-Balancing" mode of the ATSSS, the error rate in the transmission process of the service stream is very high, and the actual transmission effect is very poor.
In the embodiment, for a scenario where two device modules in the same terminal generate interference, the terminal can pre-judge the frequency band information of the first access technology and the frequency band information of the second access technology, so that the interference is avoided, instead of monitoring after disturbance, in the embodiment, the interference avoiding means mainly selects a better 5G connection and WiFi connection coexistence mode by switching the ATSSS rule, and the embodiment does not need to adjust the device power control, and can provide better user experience for a user. It can be understood that the communication method of this embodiment has an advantage that the local policy management and control information performs signaling negotiation before the data connection is established, that is, the data connection is in an unarmed state during the signaling negotiation, and the user plane does not generate data transmission interference and does not affect user experience. If the terminal selects the ATSSS rule and performs signaling negotiation after data connection, that is, performs signaling negotiation according to the received user data condition, an interference problem may occur, and it is necessary to re-receive the user data after eliminating the interference, which affects user experience.
It should be noted that the first access technology may be a 3GPP access technology, and the second access technology may be a Non-3GPP access technology; alternatively, the first access technology may be a Non-3GPP access technology, and the second access technology may be a 3GPP access technology, which is not specifically limited in this embodiment.
Exemplarily, the service scenario is determined to be a maximum rate scenario, that is, when the terminal supports the Load-Balancing capability of the ATSSS rule, the ATSSS rule may be: "Traffic Descriptor: application-1", "Steering mode: load-Balancng, 3GPP =20%, non-3GPP =80%", and "Steering Functionality: MPTCP". Therefore, the terminal can specify the traffic flow to adopt the following load balancing strategy: data sent to the network side is allocated at 20% to the mobile data channel and at 80% to the WiFi channel.
Illustratively, when it is determined that the service scenario is the maximum rate scenario with interference, and the sss rule is only a Load-Balancing rule, that is, when the terminal does not support the Load-Balancing capability of the sss rule, the terminal may send a signaling "NR5G NAS SM5G OTA outputting Msg — PDU session release" for Protocol Data Unit (PUD) session release to the core network element, and then send a signaling "NR5G SM5G OTA outputting Msg — PDU session updating req" for PDU session Establishment request and a signaling "NR5G smm _ G msq" for changing the ATSSS capability of the terminal to the core network element again
pdu_session_estab_req
_5gsm_cap
atsss_st＝0(0x0)"。
For example, when it is determined that the service scenario is the maximum rate scenario without interference, and the sss rule only has a Load-Balancing rule, that is, when the terminal supports the Load-Balancing capability of the sss rule, the terminal may send, to the core network element, a signaling "NR5G NAS SM5G OTA outputting Msg — PDU session release" for Protocol Data Unit (PUD) session release, and then send, to the core network element, the signaling for the PDU session establishment request and the signaling for changing the sss capability of the terminal again may be:
Figure BDA0003035443050000081
for example, a field describing the ATSSS capability in the signaling (i.e., identification information indicating an access manner supported by the terminal) may be extended, and a Bit4, a Bit3, a Bit2, a Bit1, and a Bit0 field in the signaling may be sequentially optimized and extended, where Bit4 indicates whether a Priority-Based access manner is supported, bit3 indicates whether a Load-Balancing access manner is supported, bit2 indicates whether a smallsdelay access manner is supported, bit1 indicates whether an Active-Standby access manner is supported, and whether an ATSSS is supported, and when it is determined that a service scenario is a maximum rate scenario with interference, the terminal may send, to the core network element, a signaling for a PDU session establishment request and a signaling for changing the ATSSS capability of the terminal:
Figure BDA0003035443050000082
when it is determined that the service scenario is the maximum rate scenario without interference, the sending, by the terminal, a signaling for the PDU session establishment request and a signaling for changing the terminal ATSSS capability to the core network element may be:
Figure BDA0003035443050000083
referring to fig. 4, when the service scenario is a low latency scenario, step S200 includes, but is not limited to, step S410:
step S410, local policy management and control information is generated according to the low-delay scene, and the access mode supported by the terminal in the identification information is a low-delay access mode.
Specifically, the terminal may detect a scene corresponding to a service flow to be processed, and when the scene is a red packet robbing scene, a ticket robbery scene, or other robbery scenes, the terminal may determine that the service scene of the service flow is a low-delay scene, and then the terminal generates local policy management and control information according to the low-delay scene, and an access mode supported by the terminal in the identification information is a low-delay access mode.
In an embodiment, the access technologies supported by the terminal may include a first access technology and a second access technology, where the first access technology may be a 3GPP access technology, and the second access technology may be a Non-3GPP access technology, and the frequency band information of the first access technology and the frequency band information of the second access technology are obtained, and when the frequency band information of the first access technology is an n79 frequency band and the frequency band information of the second access technology is also an n79 frequency band, it may be considered that the frequency band information of the first access technology and the frequency band information of the second access technology meet the interference condition; at this time, the terminal may further detect a scene corresponding to a service flow to be processed, and when the scene is a red packet robbing scene, a ticket robbery scene, or other shopping robbery scenes, the terminal may determine that the service scene of the service flow is a low-delay scene, then the terminal generates local policy control information according to the low-delay scene, an access manner supported by the terminal in the identification information is a low-delay access manner, and sends the local policy control information to a core network element, so that the core network element can generate the access policy control information according to the identification information in the local policy control information; and then acquiring access policy management and control information sent by a core network element and processing the service flow according to the access policy management and control information, wherein the access policy management and control information is generated according to local policy management and control information of identification information of an access mode supported by an indication terminal sent by the terminal, so that the core network element can generate the access policy management and control information according to the requirement of the terminal on the corresponding network in a low-delay scene, and send the access policy management and control information to the terminal so that the terminal can process the service flow through the low-delay access technology, and the requirement of the service flow required to be transmitted by the terminal on the network can be met.
For example, a field describing the atasss capability in the signaling (i.e., identification information indicating an access manner supported by the terminal) may be extended, and a Bit4, a Bit3, a Bit2, a Bit1, and a Bit0 field in the signaling may be sequentially optimized and extended, where Bit4 indicates whether a Priority-Based access manner is supported, bit3 indicates whether a Load-Balancing access manner is supported, bit2 indicates whether a smallsdelay access manner is supported, bit1 indicates whether an Active-Standby access manner is supported, and whether an atasss is supported, and when it is determined that a service scenario is a low latency scenario, the terminal may send, to a core network element, a signaling for a PDU session establishment request and a signaling for changing the atasss capability of the terminal:
Figure BDA0003035443050000091
referring to fig. 5, when the service scenario is a priority scenario, step S200 includes, but is not limited to, step S510:
step S510, generating local policy management and control information according to the priority scenario, where the access mode supported by the terminal in the identification information is a priority access mode.
Specifically, the terminal may detect a scene corresponding to a service flow to be processed, and when the scene is a large-flow live video scene, a large-flow application download scene, or another large-flow payment scene, the terminal may determine that the service scene of the service flow is a priority scene, then the terminal generates local policy control information according to the priority scene, and an access manner supported by the terminal in the identification information is a priority access manner.
In an embodiment, the access technologies supported by the terminal may include a first access technology and a second access technology, where the first access technology may be a 5G access technology, the second access technology may be a WiFi access technology, the terminal may detect a scene corresponding to a service flow to be processed, and when the scene is a large-flow video live broadcast scene, a large-flow application download scene, or other large-flow payment scenes, the terminal may determine that the service scene of the service flow is a priority scene, where the WiFi access technology is preset to be a high-priority access technology, and the 5G access technology is preset to be a low-priority access technology relative to the WiFi access technology. Then, the terminal generates local policy management and control information according to the priority scene, the access mode supported by the terminal in the identification information is a priority access mode, and the local policy management and control information is sent to the core network element, so that the core network element can generate the access policy management and control information according to the identification information in the local policy management and control information; and then acquiring access policy control information sent by a core network element and processing the service flow according to the access policy control information, wherein the access policy control information is generated according to local policy control information which is sent by a terminal and indicates identification information of an access mode supported by the terminal, so that the core network element can generate the access policy control information according to the requirement of the terminal on the corresponding network under a priority scene, and the access policy control information is issued to the terminal so that the terminal can process the service flow through a high-priority access technology, and the requirement of the service flow required to be transmitted by the terminal on the network can be met.
For example, a field describing the atasss capability in the signaling (i.e., identification information indicating an access manner supported by the terminal) may be extended, and a Bit4, a Bit3, a Bit2, a Bit1, and a Bit0 field in the signaling may be sequentially optimized and expanded, where Bit4 indicates whether a Priority-Based access manner is supported, bit3 indicates whether a Load-Balancing access manner is supported, bit2 indicates whether a smallsdelay access manner is supported, bit1 indicates whether an Active-Standby access manner is supported, and whether an atasss is supported, and when it is determined that a service scenario is a Priority scenario, the terminal may send, to a core network element, a signaling for a PDU session establishment request and a signaling for changing the atasss capability of the terminal:
Figure BDA0003035443050000101
referring to fig. 6, when the service scenario is the primary/standby network scenario, step S200 includes, but is not limited to, step S610:
step S610, local policy management and control information is generated according to the master/slave network scenario, and the access mode supported by the terminal in the identification information is the master/slave network access mode.
Specifically, the terminal may detect a scene corresponding to a service flow to be processed, and when the scene is a password payment scene, the terminal may determine that the service scene of the service flow is a primary/secondary network scene, then the terminal generates local policy management and control information according to the primary/secondary network scene, and an access mode supported by the terminal in the identification information is a primary/secondary network access mode.
In an embodiment, the access technologies supported by the terminal may include a first access technology and a second access technology, where the first access technology may be a 5G access technology, the second access technology may be a WiFi access technology, the terminal may detect a scenario corresponding to a service flow to be processed, and when the scenario is a password payment scenario, the terminal may determine that the service scenario of the service flow is a master/standby network scenario, where the 5G access technology is preset as a master network access technology, and the WiFi access technology is preset as a standby access technology. Then, the terminal generates local policy management and control information according to the master and slave network scenes, the access mode supported by the terminal in the identification information is a master and slave network access mode, and the local policy management and control information is sent to the core network element, so that the core network element can generate the access policy management and control information according to the identification information in the local policy management and control information; and then acquiring access policy management and control information sent by a core network element and processing the service flow according to the access policy management and control information, wherein the access policy management and control information is generated according to local policy management and control information of identification information of an access mode supported by an indication terminal sent by the terminal, so that the core network element can generate the access policy management and control information according to the requirement of the terminal on a corresponding network in a master and standby network scene, and send the access policy management and control information to the terminal so that the terminal can process the service flow through a master network access technology, and the requirement of the service flow required to be transmitted by the terminal on the network can be met.
Exemplarily, a field describing the ATSSS capability in the signaling (i.e., identification information indicating an access manner supported by the terminal) may be extended, and a Bit4 field, a Bit3 field, a Bit2 field, a Bit1 field, and a Bit0 field in the signaling may be optimized and extended in sequence, where Bit4 indicates whether a Priority-Based access manner is supported, bit3 indicates whether a Load-Balancing access manner is supported, bit2 indicates whether a smallestelay access manner is supported, bit1 indicates whether an Active-Standby access manner is supported, and Bit0 indicates whether an ATSSS is supported, and when it is determined that the service scenario is an Active/Standby network scenario, the terminal sends a network element used for PD sending the ATSSS capability to the core networkThe signaling of the U session establishment request and the signaling for changing the terminal ATSSS capability may be:
Figure BDA0003035443050000111
as shown in fig. 7, fig. 7 is a flowchart of a communication method according to an embodiment of the present invention, where the communication method is applied to a core network element, and the communication method includes, but is not limited to, step S710, step S720, and step S730.
Step S710, local policy management and control information from a terminal is obtained, wherein the local policy management and control information is generated by the terminal according to a service scene determined by a service flow, and the local policy management and control information comprises identification information used for indicating an access mode supported by the terminal;
step S720, generating access strategy management and control information according to the identification information in the local strategy management and control information;
step S730, sending the access policy control information to the terminal, so that the terminal processes the service flow according to the access policy control information.
Specifically, the core network element may obtain local policy control information from the terminal, and generate access policy control information according to identification information in the local policy control information; sending access policy management and control information to a terminal so that the terminal processes a service flow according to the access policy management and control information, wherein the local policy management and control information is management and control information generated by the terminal according to a service scene determined by the service flow, and the local policy management and control information further comprises identification information for indicating an access mode supported by the terminal; therefore, the core network element can generate the access policy control information according to the requirements of the terminal on the corresponding network in different scenes, and issue the access policy control information to the terminal so that the terminal can process the service flow by the appropriate access technology, and the requirements of the service flow required to be transmitted by the terminal on the network can be met.
In an embodiment, the core network element applies an ATSSS rule of the 5G network, and to improve the decision-making capability of the auxiliary core network element on the terminal side, the ATSSS rule may be optimized, and a field describing the ATSSS capability in a signaling (i.e., identification information indicating an access manner supported by the terminal) is extended, so that the core network element generates access policy management and control information according to the ATSSS capability supported by the terminal and transmits the access policy management and control information to the terminal, so that the terminal processes a service flow according to the access policy management and control information. That is, the core network element may generate the access policy control information according to the requirements of the terminal on the corresponding network in different scenarios, and issue the access policy control information to the terminal so that the terminal can process the service flow by using an appropriate access technology, and the requirements of the service flow required to be transmitted by the terminal on the network can be met. For example: when the access mode supported by the terminal in the identification information is a Load-Balancing access mode, the core network element may generate access policy management and control information according to the local policy management and control information, where the generated access policy management and control information includes information used to instruct the terminal to process a service flow in the Load-Balancing access mode.
It should be noted that the identification information in the local policy management and control information from the terminal, which is acquired by the network element of the core network, may include an indication whether to support a Priority-Based access manner, an indication whether to support a Load-Balancing access manner, an indication whether to support a smallsdelay access manner, an indication whether to support an Active-Standby access manner, and an indication whether to support an sss.
It should be noted that, for the specific implementation and technical effects of the communication method on the network element side of the core network in the embodiment of the present invention, reference may be made to the specific implementation and technical effects of the communication method on the terminal side in the foregoing embodiment.
Referring to fig. 8, the access technologies supported by the terminal include a first access technology and a second access technology, and when the access mode supported by the terminal in the identification information is a low latency access mode, step S720 includes, but is not limited to, step S810 and step S820:
step S810, acquiring time delay information of a first access technology and time delay information of a second access technology;
step S820, when the delay information of the first access technology is smaller than the delay information of the second access technology, determining access policy management and control information for instructing the terminal to process the service flow through the first access technology.
Specifically, when the identification information in the local policy management and control information from the terminal acquired by the core network element is that the access mode supported by the terminal is a low-latency access mode, the core network element may acquire the latency information of the first access technology and the latency information of the second access technology, and when the latency information of the first access technology is judged to be smaller than the latency information of the second access technology, may determine the access policy management and control information for instructing the terminal to process the service flow through the first access technology. That is, the core network element may generate the access policy control information according to the requirement of the terminal on the corresponding network in the low-latency scenario, and issue the access policy control information to the terminal so that the terminal can process the service flow through the first access technology with low latency, which can meet the requirement of the service flow required to be transmitted by the terminal on the network.
It should be noted that the first access technology may be a 3GPP access technology, and the second access technology may be a Non-3GPP access technology; alternatively, the first access technology may be a Non-3GPP access technology, and the second access technology may be a 3GPP access technology, which is not specifically limited in this embodiment.
It should be noted that, for the specific implementation and technical effects of the communication method on the network element side of the core network in the embodiment of the present invention, reference may be made to the specific implementation and technical effects of the communication method on the terminal side in the foregoing embodiment.
Referring to fig. 9, the access technologies supported by the terminal include a first access technology and a second access technology, and when the access mode supported by the terminal in the identification information is a priority access mode, the priority of the first access technology is higher than the priority of the second access technology, step S720 includes, but is not limited to, step S910, step S920, and step S930:
step S910, acquiring transmission quality information of a first access technology and transmission quality information of a second access technology;
step S920, when the transmission quality information of the first access technology is greater than or equal to a threshold value, determining access strategy management and control information for instructing the terminal to process the service flow through the first access technology;
in step S930, the transmission quality information of the first access technology is smaller than the threshold, and the transmission quality information of the first access technology is smaller than the transmission quality information of the second access technology, and the access policy management and control information for instructing the terminal to process the service flow through the second access technology is determined.
Specifically, when the identification information in the local policy management and control information from the terminal acquired by the core network element is that the access mode supported by the terminal is a priority access mode, the core network element may acquire transmission quality information of a first access technology and transmission quality information of a second access technology, and when it is determined that the transmission quality information of the first access technology is greater than or equal to a threshold, access policy management and control information for instructing the terminal to process a service flow through the first access technology may be determined; when it is determined that the transmission quality information of the first access technology is smaller than the threshold and the transmission quality information of the first access technology is smaller than the transmission quality information of the second access technology, access policy management and control information for instructing the terminal to process the service flow through the second access technology may be determined. That is, the core network element may generate the access policy control information according to the requirement of the terminal on the corresponding network in the priority scene, and issue the access policy control information to the terminal, so as to meet the requirement of the service flow required to be transmitted by the terminal on the network.
It should be noted that, for the specific implementation and technical effects of the communication method on the network element side of the core network in the embodiment of the present invention, reference may be made to the specific implementation and technical effects of the communication method on the terminal side in the foregoing embodiment.
Referring to fig. 10, the access technologies supported by the terminal include a first access technology and a second access technology, and when the access mode supported by the terminal in the identification information is an active/standby network access mode, a network corresponding to the first access technology is a main network and a network corresponding to the second access technology is a standby network, step S720 includes, but is not limited to, step S1010, step S1020, and step S1030:
step S1010, obtaining the connection information of the first access technology and the connection information of the second access mode;
step S1020, the connection information of the first access mode is connection, and access strategy management and control information for indicating the terminal to process the service flow through the first access technology is determined;
step S1030, if the connection information of the first access mode is disconnection and the connection information of the second access mode is connection, determining access policy management and control information for instructing the terminal to process the service flow through the second access technology.
Specifically, when the identification information in the local policy management and control information from the terminal acquired by the core network element is that the access mode supported by the terminal is a master/standby network access mode, the core network element may acquire connection information of a first access technology and connection information of a second access mode, and when it is determined that the connection information of the first access mode is connected, may determine access policy management and control information for instructing the terminal to process a service flow through the first access technology; when the connection information of the first access mode is disconnected and the connection information of the second access mode is connected, the access policy management and control information for instructing the terminal to process the service flow through the second access technology may be determined. That is, the core network element may generate the access policy control information according to the requirement of the terminal on the corresponding network in the active/standby network scenario, and issue the access policy control information to the terminal, so as to meet the requirement of the service flow required to be transmitted by the terminal on the network.
It should be noted that, for the specific implementation and technical effects of the communication method on the network element side of the core network in the embodiment of the present invention, reference may be made to the specific implementation and technical effects of the communication method on the terminal side in the foregoing embodiment.
Based on the above communication method, the following respectively proposes various embodiments of the terminal, the core network element and the computer-readable storage medium of the present invention.
In addition, an embodiment of the present invention provides a terminal including: a memory, a processor, and a computer program stored on the memory and executable on the processor.
The processor and memory may be connected by a bus or other means.
It should be noted that the terminal in this embodiment may be configured to include a memory and a processor as in the embodiment shown in fig. 1, and can form a part of the system architecture platform in the embodiment shown in fig. 1, and both are within the same inventive concept, so that both have the same implementation principle and beneficial effects, and are not described in detail herein.
The non-transitory software programs and instructions required to implement the communication method of the terminal side of the above-described embodiments are stored in the memory, and when executed by the processor, perform the communication method of the above-described embodiments, e.g., perform the above-described method steps S100 to S500 in fig. 2, method steps S301 to S310 in fig. 3, method step S400 in fig. 4, method step S510 in fig. 5, and method step S610 in fig. 6.
In addition, an embodiment of the present invention provides a core network element, including: a memory, a processor, and a computer program stored on the memory and executable on the processor.
The processor and memory may be connected by a bus or other means.
It should be noted that the core network element in this embodiment may be correspondingly configured to include a memory and a processor as in the embodiment shown in fig. 1, and can form a part of the system architecture platform in the embodiment shown in fig. 1, and both of them belong to the same inventive concept, so that both of them have the same implementation principle and beneficial effect, and are not described in detail herein.
The non-transitory software programs and instructions required to implement the communication method on the network element side of the core network of the above embodiment are stored in the memory, and when executed by the processor, perform the communication method of the above embodiment, for example, perform the above-described method steps S710 to S730 in fig. 7, method steps S810 to S820 in fig. 8, method steps S910 to S930 in fig. 9, and method steps S1010 to S1030 in fig. 10.
Furthermore, an embodiment of the present invention also provides a computer-readable storage medium, which stores computer-executable instructions for performing the above-mentioned terminal-side communication method, for example, performing the above-described method steps S100 to S500 in fig. 2, method steps S310 to S390 in fig. 3, method step S400 in fig. 4, method step S510 in fig. 5, and method step S610 in fig. 6. Alternatively, when the computer-executable instructions are used to execute the above-mentioned communication method on the network element side of the core network, for example, the method steps S710 to S730 in fig. 7, the method steps S810 to S820 in fig. 8, the method steps S910 to S930 in fig. 9, and the method steps S1010 to S1030 in fig. 10 described above are executed.
It will be understood by those of ordinary skill in the art that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, or suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims (10)

1. A communication method is applied to a terminal, and comprises the following steps:
determining a service scene according to the service flow;
generating local policy management and control information according to the service scene, wherein the local policy management and control information comprises identification information used for indicating an access mode supported by the terminal;
sending the local policy control information to a core network element, so that the core network element generates access policy control information according to the identification information in the local policy control information;
acquiring the access strategy management and control information sent by the core network element;
and processing the service flow according to the access strategy management and control information.
2. The communication method of claim 1, wherein the service scenario comprises one of:
a maximum rate scenario;
a low-latency scenario;
a priority scenario;
master standby network scenarios.
3. The communication method according to claim 2, wherein when a service scenario is a maximum rate scenario, the access technologies supported by the terminal include a first access technology and a second access technology, and the generating the local policy management and control information according to the service scenario includes:
when the frequency band information of the first access technology and the frequency band information of the second access technology meet interference conditions, generating local policy control information according to the maximum rate scene, wherein the access modes supported by the terminal in the identification information of the local policy control information include at least one of the following modes:
a low delay access mode;
a priority access mode;
and (4) master and standby network access modes.
4. The communication method according to claim 2, wherein when a service scenario is a maximum rate scenario, the access technologies supported by the terminal include a first access technology and a second access technology, and the generating the local policy management and control information according to the service scenario includes:
when the frequency band information of the first access technology and the frequency band information of the second access technology do not accord with an interference condition, generating local policy control information according to the maximum rate scene, wherein an access mode supported by the terminal in identification information of the local policy control information is a balanced load access mode.
5. The communication method according to claim 3 or 4, characterized in that the communication method further comprises:
when the frequency band information of the first access technology is changed, recording the current frequency band information of the first access technology;
and judging whether the current frequency band information of the first access technology and the frequency band information of the second access technology meet interference conditions.
6. The communication method according to claim 2, wherein the generating local policy management and control information according to the service scenario includes one of:
when the service scene is a low-delay scene, generating local policy management and control information according to the low-delay scene, wherein an access mode supported by the terminal in identification information of the local policy management and control information is a low-delay access mode;
when the service scene is a priority scene, generating local policy control information according to the priority scene, wherein an access mode supported by the terminal in identification information of the local policy control information is a priority access mode;
when the service scene is a master/standby network scene, local policy control information is generated according to the master/standby network scene, and an access mode supported by the terminal in identification information of the local policy control information is a master/standby network access mode.
7. A terminal, comprising: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the communication method according to any one of claims 1 to 6 when executing the computer program.
8. A communication method is applied to a core network element, and comprises the following steps:
acquiring local policy control information from a terminal, wherein the local policy control information is control information generated by the terminal according to a service scene determined by a service flow, and the local policy control information comprises identification information used for indicating an access mode supported by the terminal;
generating access policy management and control information according to the identification information in the local policy management and control information;
and sending the access strategy management and control information to the terminal so that the terminal processes the service flow according to the access strategy management and control information.
9. A core network element, comprising: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the communication method according to claim 8 when executing the computer program.
10. A computer-readable storage medium storing computer-executable instructions for performing the communication method of any one of claims 1 to 6, or for performing the communication method of claim 8.
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