WO2023116363A1

WO2023116363A1 - Session processing method and apparatus, and communication device and storage medium

Info

Publication number: WO2023116363A1
Application number: PCT/CN2022/135047
Authority: WO
Inventors: 唐小勇; 朱磊; 游正朋; 赵立君; 种璟; 李颖; 闻龙
Original assignee: 中移(成都)信息通信科技有限公司; 中国移动通信集团有限公司
Priority date: 2021-12-24
Filing date: 2022-11-29
Publication date: 2023-06-29
Also published as: CN116346882A

Abstract

Disclosed in the embodiments of the present disclosure are a session processing method and apparatus, and a communication device and a storage medium. The method comprises: a terminal device not creating, on the basis of a pre-configured first rule or on the basis of a first rule sent by a network device, a multi-access protocol data unit (MA PDU) session that accesses a local area data network (LADN) data network name (DNN), wherein the first rule is used by the terminal device to prohibit the creation of the MA PDU session that accesses the LADN DNN.

Description

A session processing method, device, communication device and storage medium

Cross References to Related Applications

This application is based on a Chinese patent application with application number 202111599088.X and a filing date of December 24, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference Apply.

technical field

The present disclosure relates to the technical field of communication, and in particular to a session processing method, device, communication device and storage medium.

Background technique

Most vertical industries, such as factories, hospitals, schools, etc., have established distributed data centers, that is, data centers are distributed in various parks. For access to campus data centers, various industries generally have the following requirements:

1) Authorized terminals located in the park can access the data center in the park through the shortest possible link based on the local distribution technology, enabling edge computing applications;

2) After the park terminal moves out of the park, it is forbidden to directly access the data network in the park. For example, in the medical application scenario, for the purpose of protecting medical privacy data, the data network carrying the medical application system can only be in the hospital area Access, when the terminal moves out of the hospital area, it is prohibited from accessing the hospital network.

In response to the above requirements, a local area data network (LADN, Local Area Data Network) technology is currently proposed. The local area data network (LADN) refers to a protocol data unit (PDU, Protocol Data Unit) that is only allowed in a specific service area. The data network accessed by the session.

But the LADN technology is only applicable to the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) access network, and cannot be applied to non-3GPP access networks. If the user equipment (UE, User Equipment) accesses the LADN through the 3GPP network and the non-3GPP network at the same time by creating a multi-access protocol data unit (MA PDU, Multi-Access Protocol Data Unit) session in the LADN service area, when the UE moves out of the LADN After the service area, although the data link accessed by 3GPP will be interrupted at this time, the UE can still continue to access the LADN through the non-3GPP network. This fails to meet the above needs.

Contents of the invention

Embodiments of the present disclosure provide a session processing method, device, communication device, and storage medium.

The technical scheme of the embodiment of the present disclosure is realized in this way:

In a first aspect, an embodiment of the present disclosure provides a session processing method, the method including:

The terminal device does not create a MA PDU session for accessing the LADN data network name (DNN, Data Network Name) based on the pre-configured first rule, or based on the first rule sent by the network device; the first rule is used for the terminal device It is forbidden to create a MA PDU session to access LADN DNN.

In some optional embodiments of the present disclosure, the method further includes: the terminal device receiving the first rule sent by the network device, and configuring the first rule.

In some optional embodiments of the present disclosure, the terminal device receiving the first rule sent by the network device includes:

The terminal device receives the transmission from the network device through radio resource control (RRC, Radio Resource Control) signaling, non-access stratum (NAS, Non-Access-Stratum) signaling or Internet Protocol (IP, Internet Protocol) signaling The first rule of .

The terminal device receives UE rule information sent by the network device, where the UE rule information includes the first rule.

In some optional embodiments of the present disclosure, the first rule includes a rule type and rule content; the rule type indicates that it is forbidden to create a MA PDU session type for accessing LADN DNN.

The terminal device receives a UE Route Selection Policy (URSP, UE Route Selection Policy) rule sent by the network device, where the URSP rule is used to indicate the first rule.

In some optional embodiments of the present disclosure, the URSP rule includes at least one set of mapping relationships between traffic descriptors, routing descriptors, routing rules, and reverse rule indications, and the reverse rule indications are used to indicate whether Routing rules composed of corresponding traffic descriptors, routing descriptors, and routing rules are prohibited.

The terminal device receives the first rule sent by the network device through a first signaling, where the first signaling includes the first rule.

In some optional embodiments of the present disclosure, the first signaling at least includes a signaling identifier; the signaling identifier is used to identify rule configuration signaling that prohibits creating a MA PDU session that accesses the LADN DNN.

After the terminal device performs network registration, it receives the first rule sent by the network device; or, when the terminal device moves to the LADN service area, receives the first rule sent by the network device .

In a second aspect, an embodiment of the present disclosure further provides a session processing method, the method including:

The network device sends a first rule to the terminal device, and the first rule is used for the terminal device to forbid creating an MA PDU session for accessing the LADN DNN.

In some optional embodiments of the present disclosure, the network device sends the first rule to the terminal device, including:

The network device sends the first rule to the terminal device through RRC signaling, NAS signaling or IP signaling.

The network device sends UE rule information to the terminal device, where the UE rule information includes the first rule.

The network device sends a URSP rule to the terminal device, where the URSP rule is used to indicate the first rule.

In some optional embodiments of the present disclosure, the network device sending the first rule to the terminal device includes: the network device sending a first signaling to the terminal device, the first signaling including the first one rule.

In some optional embodiments of the present disclosure, the sending the first rule to the terminal device by the network device includes: sending the first rule to the terminal device after the network device detects that the terminal device performs network registration. A rule; or, when the network device detects that the terminal device moves to the LADN service area, it sends the first rule to the terminal device.

In a third aspect, an embodiment of the present disclosure further provides a session processing device, the device includes a first processing unit configured to not create an access LADN based on a pre-configured first rule, or based on a first rule sent by a network device. A MA PDU session of DNN; the first rule is used for the terminal device to forbid creating a MA PDU session to access LADN DNN.

In a fourth aspect, an embodiment of the present disclosure further provides a session processing device, the device includes a second communication unit configured to send a first rule to a terminal device, the first rule is used for the terminal device to prohibit the creation of access MA PDU session of LADN DNN.

In the fifth aspect, the embodiments of the present disclosure further provide a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the session processing method described in the first aspect or the second aspect of the embodiments of the present disclosure is implemented. A step of.

In the sixth aspect, the embodiment of the present disclosure also provides a communication device, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the program, the implementation of the present disclosure is realized. For example, the steps of the session processing method described in the first aspect or the second aspect.

The session processing method, device, communication device, and storage medium provided by the embodiments of the present disclosure, the method includes: the terminal device does not create an MA for accessing LADN DNN based on a pre-configured first rule, or based on a first rule sent by a network device A PDU session; the first rule is used for the terminal device to forbid creating an MA PDU session for accessing LADN DNN. By adopting the technical solutions of the embodiments of the present disclosure, the terminal device does not actively create a MA PDU session for accessing LADN DNN through the pre-configuration of the terminal device or the configuration of the network device, which can meet the requirements of 3GPP access network and non-3GPP access. The LADN scenario requirement in the multi-access converged network of the network is to prohibit terminal devices from accessing LADN through MA PDU sessions.

Description of drawings

Figure 1 is an architecture diagram of 3GPP and non-3GPP network convergence based on N3IWF;

Figure 2 is a technical architecture diagram of ATSSS;

FIG. 3 is a first schematic flowchart of a session processing method according to an embodiment of the present disclosure;

FIG. 4 is a second schematic flow diagram of a session processing method according to an embodiment of the present disclosure;

FIG. 5 is a first structural schematic diagram of a conversation processing device according to an embodiment of the present disclosure;

FIG. 6 is a second schematic diagram of the composition and structure of the conversation processing device according to the embodiment of the present disclosure;

FIG. 7 is a structural diagram of a hardware composition of a communication device according to an embodiment of the present disclosure.

Detailed ways

The present disclosure will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

The technical solutions of the embodiments of the present disclosure can be applied to various communication systems, for example: Global System of Mobile communication (GSM, Global System of Mobile communication) system, Long Term Evolution (LTE, Long Term Evolution) system or 5G system, etc. Optionally, the 5G system or the 5G network may also be called a New Radio (NR, New Radio) system or an NR network.

Exemplarily, the communication system applied by the embodiments of the present disclosure may include a network device and a terminal device (also referred to as a terminal, a communication terminal, etc.); the network device may be a device that communicates with the terminal device. Wherein, the network device can provide communication coverage within a certain area, and can communicate with terminals located in the area. Optionally, the network device may be a base station in each communication system, such as an evolved base station (eNB, Evolutional Node B) in an LTE system, or a base station (gNB) in a 5G system or an NR system.

It should be understood that a device with a communication function in the network/system in the embodiment of the present application may be referred to as a communication device. Communication equipment may include network equipment and terminals with communication functions, and the network equipment and terminal equipment may be the specific equipment described above, which will not be repeated here; communication equipment may also include other equipment in the communication system, such as network controllers , mobility management entity and other network entities, which are not limited in the embodiments of the present disclosure.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein, for example, can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

Before describing the access network switching method of the embodiment of the present disclosure, a brief description of the applicable network architecture of the embodiment of the present disclosure will be given first.

As a new generation of communication technology, the fifth generation mobile communication technology (5G, 5th Generation Mobile Communication Technology) uses its characteristics of large bandwidth, low delay, high reliability and wide connection to provide the necessary network infrastructure support for vertical industry applications and promote the development of various industries. The intelligent upgrade of various industries is moving towards the intelligent interconnection of all things. However, at present, local area networks and Internet of Things based on Wi-Fi, Bluetooth, wired, Zigbee, Long Range Radio (Lora, Long Range Radio) and other network types have been generally deployed in various vertical industries. Due to cost, usage habits, etc. Due to the consideration of various industries, it is impossible to completely replace the existing network with 5G network in the short term. Therefore, in various industries, 5G networks and other types of networks will coexist for a long time. If the terminals of the 5G network are isolated from the terminals of other networks, the goal of the 5G Internet of Everything will not be realized. Therefore, the integration of the 5G network and other types of networks is imperative.

In order to realize the integration of 5G network and other networks, the framers of 5G communication specifications have defined the framework for the integration of 3GPP network and non-3GPP network, based on non-3GPP interworking function (N3IWF, Non-3GPP InterWorking Function), trusted non-3GPP gateway function ( TNGF, Trusted Non-3GPP Gateway Function), wired access gateway function (W-AGF, Wireline Access Gateway Function) and other network elements, non-3GPP networks can access the 5G core network.

Exemplarily, FIG. 1 is a schematic diagram of an optional architecture for 3GPP and non-3GPP network integration; as shown in FIG. Interconnection based on N3IWF.

Based on the above-mentioned converged architecture, 3GPP also defines Access Traffic Steering, Switching, Splitting (ATSSS, Access Traffic Steering, Switching, Splitting) technology, and its architecture diagram is shown in Figure 2: User Equipment (UE, User Equipment) includes Multipath Transmission Control Protocol (MPTCP, MultiPath Transmission Control Protocol) function (MPTCP functionality) and ATSSS low-level function (ATSSS-LL functionality, ATSSS-Low-Layer functionality), UE can access through MPTCP function and/or ATSSS-LL function 3GPP network and/or non-3GPP network. The user plane function (UPF, User Plane Function) includes the MPTCP proxy function (MPTCP Proxy functionality) for processing the UE's 3GPP access (3GPP Access) and/or non-3GPP access (Non-3GPP Access) user plane .

ATSSS technology enhances the integration of 3GPP access network and non-3GPP access network through the following features:

UE can access 3GPP and non-3GPP networks at the same time by creating a Multi-Access Protocol Data Unit (MA PDU, Multi-Access Protocol Data Unit) session, thereby increasing access bandwidth;

When one of the 3GPP access network and the non-3GPP access network has no signal coverage or fails, the UE can choose another network to access, which improves the overall network reliability;

The performance measurement function (PMF, Performance Measurement Functionality) function on UPF can monitor the performance data of two types of networks. Based on this data system, the dynamic allocation of terminal access policies can be realized, so as to make full use of existing network resources.

Aiming at the needs of the industry, 3GPP proposed a LADN technology. LADN refers to a data network that is only allowed to be accessed by PDU sessions in a specific service area. The principle of implementation is to configure the data network in the campus as LADN DNN, and the UE can only create PDU sessions to access the DNN within the specified range. The network is based on this DNN selects a specific network slice and UPF to realize local distribution; when UE moves out of LADN service area, the network actively terminates its PDU session to access LADN DNN, so as to meet the above-mentioned industry needs.

ATSSS technology has greatly enhanced the integration of 3GPP networks and non-3GPP networks, but it is not applicable in LADN scenarios. Because the LADN technology is only applicable to 3GPP access, but not to non-3GPP access. If the UE accesses the LADN through the 3GPP network and the non-3GPP network at the same time by creating a MA PDU session in the LADN service area, when the UE moves out of the LADN service area, although the 3GPP access data link will be interrupted at this time, the UE can still pass through the LADN service area. Non-3GPP networks continue to access LADN, which obviously violates the design principles of LADN.

Based on this, the following embodiments of the present disclosure are proposed.

An embodiment of the present disclosure provides a session processing method, which is applied to a terminal device. FIG. 3 is a first schematic flow diagram of a session processing method according to an embodiment of the present disclosure; as shown in FIG. 3 , the method includes:

Step 101: The terminal device does not create a MA PDU session for accessing LADN DNN based on the preconfigured first rule, or based on the first rule sent by the network device; the first rule is used for the terminal device to prohibit the creation of a MA PDU session for accessing LADN DNN MA PDU session.

In this embodiment, in order to achieve the purpose that the terminal device does not actively initiate the creation of a MA PDU session to access LADN DNN, it is necessary to configure the rule "prohibiting the creation of a MA PDU session to access LADN DNN" on the terminal device, that is, the above-mentioned first rule.

In one embodiment, the terminal device may pre-configure the first rule, for example, the manufacturer pre-configures the first rule before the terminal device leaves the factory, or the operator may configure the first rule in the Subscriber Identity Module (SIM, Subscriber Identity) of the terminal device. Module) card to pre-configure the first rule.

In another implementation manner, the method further includes: the terminal device receiving the first rule sent by the network device, and configuring the first rule.

In this embodiment, the terminal device may configure the rule "forbidden to create a MA PDU session to access LADN DNN" according to the first rule issued by the network device.

By adopting the technical solutions of the embodiments of the present disclosure, the terminal device does not actively create a MA PDU session for accessing LADN DNN through the pre-configuration of the terminal device or the configuration of the network device, which can meet the requirements of 3GPP access network and non-3GPP access. The LADN scenario requirement in the multi-access converged network of the network is to prohibit terminal devices from accessing LADN through MA PDU sessions.

In some optional embodiments, the terminal device receiving the first rule sent by the network device includes: the terminal device receiving the first rule sent by the network device through RRC signaling, NAS signaling or IP signaling The first rule.

In this embodiment, the network device may send the first rule to the terminal device through an existing procedure (for example, accessing the network procedure, etc.), through the above-mentioned RRC signaling, NAS signaling or IP signaling, or through an existing In addition to some procedures, the first rule is sent to the terminal device through additional RRC signaling, NAS signaling or IP signaling, which is not limited in this embodiment.

In some optional embodiments of the present disclosure, the terminal device receiving the first rule sent by the network device includes: receiving the first rule sent by the network device after the terminal device performs network registration. A rule; or, when the terminal device moves to the LADN service area, receive the first rule sent by the network device.

In this embodiment, the timing at which the network device sends the first rule to the terminal device may include, for example: after the terminal device performs network registration or when the terminal device moves to the LADN service area.

Exemplarily, after the terminal device performs network registration (for example, including initial registration, periodic registration, mobility registration, etc.) The update process is to issue the rule of "prohibiting to create a MA PDU session accessing LADN DNN" (that is, the first rule) to the terminal device to complete the configuration of the first rule.

Exemplarily, when a terminal device moves to a certain LADN service area, the PCF detects that the terminal device has subscribed to the LADN service, triggers the UE configuration update process, and sets the rule "prohibited from creating an MA PDU session to access LADN DNN" (that is, the first rule ) to the terminal device to complete the configuration of the first rule.

In this embodiment, the above-mentioned first rule may be realized and delivered through existing rule information, or may be realized and delivered through newly defined rule information, which is not limited in this embodiment.

As an implementation manner, the terminal device receiving the first rule sent by the network device includes: the terminal device receiving UE rule information sent by the network device, the UE rule information including the first one rule.

This embodiment is based on the currently defined "UE rule information", adding "prohibited to create MA PDU sessions accessing LADN DNN" rule information (ie the first rule) in the defined "UE rule information".

Optionally, the network device may send the UE rule information including the first rule to the terminal device through NAS signaling. Exemplarily, the PCF may generate the above first rule and send it to a mobility management function (AMF, Access and Mobility Management Function), and the AMF sends it to the terminal device through the N1 interface.

Currently, the defined UE rule information includes:

Access Network Discovery & Selection Policy (ANDSP, Access Network Discovery & Selection Policy) information;

URSP information;

Vehicle networking rules (V2XP, V2X Policy) information;

Short distance service rule (ProSeP, ProSe Policy) information.

In this embodiment, based on the UE rule information above, the rule information (i.e. the first rule) of "prohibited from creating MA PDU sessions for accessing LADN DNN" is added.

Wherein, optionally, the first rule includes a rule type and rule content; the rule type indicates that it is forbidden to create a MA PDU session type for accessing LADN DNN.

Wherein, the rule type indicates that the corresponding rule is the type of "prohibited to create a MA PDU session for accessing LADN DNN", and the rule type can be implemented in one of the following ways: number, character string, etc. For example, when the numbering method is used, it is assumed that the rule type is represented by a 4-bit number "0101"; when a character string is used, "MA2LADNSP" is used to represent the rule type. For the content of the rule, since the first rule is a fixed rule, the content of the rule can be empty, or it can be represented by bits, for example: 1 bit "0" and "1" respectively represent "prohibited to create a MA PDU session to access LADN DNN" and "Allow creation of MA PDU sessions to access LADN DNN".

As another implementation manner, the terminal device receiving the first rule sent by the network device includes: the terminal device receiving the URSP rule sent by the network device, and the URSP rule is used to indicate the First rule.

This implementation mode is based on the currently defined URSP rules, adding "forbidden to create MA PDU sessions for accessing LADN DNN" rule information (ie the first rule) in the defined URSP rules.

Currently, the defined URSP rules include: priority, traffic descriptor, routing descriptor, and routing verification rules. URSP rules are used to define routing selection rules, which means: on the premise of meeting the routing verification rules, The data packets conforming to the traffic descriptor are forwarded according to the routing rules specified by the routing descriptor. Among them, the routing inspection rules include location restrictions, the traffic description includes DNN, and the routing descriptor includes the specified access type (such as 3GPP or non-3GPP or MA), so the defined URSP rule can support the configuration of "create access to LADN DNN's MA PDU session" rule, as shown in Table 1 below, but does not support the configuration of the "prohibited to create a MA PDU session to access LADN DNN" rule.

Table 1

Wherein, optionally, the URSP rule includes at least one set of traffic descriptors, routing descriptors, routing rules, and a mapping relationship indicated by a reverse rule, and the reverse rule indication is used to indicate whether to prohibit the use of the corresponding traffic Descriptor, Routing Descriptor and Routing Rules are composed of Routing Rules.

In this embodiment, a new "reverse rule indication" is added to the defined URSP rules, that is, the routing selection rules defined by "traffic descriptor + routing selection descriptor + routing verification rules" are reversed, so that they are replaced by " Create the MA PDU session that visits LADN DNN " rule and become " forbid to create the MA PDU session that visits LADN DNN " rule, namely make URSP rule become the first rule in this embodiment by " reverse rule instruction ".

In some optional embodiments, the reverse rule indication can be implemented in one of the following ways: bit (or bitmap), Boolean variable, numeric variable or character string, for example, the reverse rule is represented by a Boolean variable Instructions, for example: "False" means not to negate the routing rules, "True" means to negate the routing rules; use a string to indicate the reverse rules, for example, "No" means not to negate the routing rules, "Yes "Represents the inversion of the routing rules; the capability opening request identifier is represented by a numerical variable, for example, 0 represents no inversion of the routing rules, 1 represents inversion of the routing rules; the reverse is represented by a bit (or bitmap) The rule indication, for example, uses a bit to indicate whether to reverse the routing selection rule. For example, if the bit position is 1, it means that the routing selection rule is reversed, and if the bit position is 0, it means that the routing selection rule is not reversed.

As shown in Table 1, the defined URSP rules can be implemented by configuring "traffic descriptor: DNN = designated LADN DNN; routing descriptor: access type = MA; routing verification rule: location restriction = LADN service area". URSP rule "Supports creation of MA PDU sessions within the LADN service area". When adding "reverse rule indication" in the USRP rule, on the basis of the above rules, add "reverse rule indication: reverse rule indication = "yes" configuration, as shown in Table 2, then the "prohibited Create the URSP rule of "MA PDU session in the LADN service area", the URSP rule is used to indicate the above-mentioned first rule in the embodiment of the present disclosure.

Table 2

In addition, the embodiment of the present disclosure adds a "reverse rule indication" to the USRP rule, which can also support the inversion of all currently defined URSP rules, and realize some specific requirements. For example, the current URSP rule only supports the configuration of the rule "supporting the traffic of the specified application to access the specified network slice" on the UE, but the user may have the requirement of "prohibiting the traffic of the specified application to access the specified network slice", such as for ordinary UEs , it is forbidden to access network slices with high Service Level Agreement (SLA, Service Level Agreement) level. The current URSP rules do not support such configuration, so ordinary UEs can still try to access network slices with high SLA levels. Adding "reverse rule indication" to the USRP rule can implement the rule "prohibiting the traffic of the specified application from accessing the specified network slice" on the UE to meet the above requirements.

Optionally, the network device may send the URSP rule used to indicate the first rule to the terminal device through NAS signaling. Exemplarily, the PCF may generate the aforementioned URSP rule of "prohibiting to create a MA PDU session accessing LADN DNN", and send it to the AMF, and the AMF sends it to the terminal device through the N1 interface.

As yet another implementation manner, the receiving the first rule sent by the network device by the terminal device includes: receiving, by the terminal device, the first rule sent by the network device through a first signaling, the The first signaling includes the first rule.

This embodiment does not modify the currently defined rules, and adds "prohibited from creating MA PDU sessions accessing LADN DNN" rule information (i.e. the first rule), which can be sent to Terminal Equipment.

Wherein, optionally, the first signaling at least includes a signaling identifier; the signaling identifier is used to identify rule configuration signaling that prohibits creating a MA PDU session that accesses the LADN DNN.

In this embodiment, the downlink signaling configured by the rule (i.e. the above-mentioned first rule) of "prohibiting to create MA PDU sessions for accessing LADN DNN" can be added to signaling such as RRC, NAS, and IP, and the content contained in the downlink signaling It includes at least a signaling identifier; optionally, the downlink signaling may also include signaling content. Wherein, the signaling identifier indicates that the current signaling is the rule configuration signaling of "prohibiting to create a MA PDU session accessing LADN DNN", and the signaling identifier can be implemented in one of the following ways: number, character string, etc. Among them, the signaling content can be empty, and can also be represented by bits, for example: 1 bit "0" and "1" respectively indicate "prohibited" and "allowed" to create a MA PDU session for accessing LADN DNN.

Based on the foregoing embodiments, the embodiments of the present disclosure further provide a session processing method. FIG. 4 is a second schematic flow diagram of a session processing method in an embodiment of the present disclosure; as shown in FIG. 4 , the method includes:

Step 201: The network device sends a first rule to the terminal device, and the first rule is used for the terminal device to forbid creating a MA PDU session for accessing the LADN DNN.

In this embodiment, the network device is a network device with the function of disabling the terminal device from creating a MA PDU session for accessing the LADN DNN. Exemplarily, the network device may be a core network device, such as a PCF.

In this embodiment, the network device sends the first rule to the terminal device, and the terminal device can configure the rule "forbidden to create a MA PDU session to access LADN DNN" according to the first rule issued by the network device.

In some optional embodiments, the network device sending the first rule to the terminal device includes: the network device sending the first rule to the terminal device through RRC signaling, NAS signaling or IP signaling.

In this embodiment, the network device may send the first rule to the terminal device through the currently existing procedures (such as accessing the network procedure, etc.), through the above-mentioned RRC signaling, NAS signaling or IP signaling, or may also send the first rule through the existing In addition to some procedures, the first rule is sent to the terminal device through additional RRC signaling, NAS signaling or IP signaling, which is not limited in this embodiment.

In some optional embodiments, the network device sending the first rule to the terminal device includes: after the network device detects that the terminal device performs network registration, sending the first rule to the terminal device; or The network device sends the first rule to the terminal device when detecting that the terminal device moves to the LADN service area.

Exemplarily, after the terminal device performs network registration with the network device (for example, including initial registration, periodic registration, mobility registration, etc.), the PCF detects that the terminal device has subscribed to the LADN service, triggers the UE configuration update process, and sets "Prohibit creating access to LADN" DNN's "MA PDU session" rule (i.e. the first rule) is sent to the terminal device to complete the configuration of the first rule.

Exemplarily, when a terminal device moves to a certain LADN service area, the PCF detects that the terminal device has subscribed to the LADN service, triggers the UE configuration update process, and sets the "prohibited from creating an MA PDU session to access LADN DNN" rule (ie, the first rule ) to the terminal device to complete the configuration of the first rule.

As an implementation manner, the sending, by the network device, the first rule to the terminal device includes: sending, by the network device, UE rule information to the terminal device, where the UE rule information includes the first rule.

Optionally, the network device may send the UE rule information including the first rule to the terminal device through NAS signaling. Exemplarily, the PCF may generate the first rule and send it to the AMF, and the AMF sends it to the terminal device through the N1 interface.

In this embodiment, based on the defined UE rule information, the rule information (that is, the first rule) of "prohibiting to create a MA PDU session for accessing the LADN DNN" is added.

Optionally, the first rule includes a rule type and rule content; the rule type indicates that it is forbidden to create a MA PDU session type for accessing LADN DNN.

As another implementation manner, the sending, by the network device, the first rule to the terminal device includes: sending, by the network device, a URSP rule to the terminal device, where the URSP rule includes the first rule.

Optionally, the URSP rule includes at least one set of traffic descriptors, routing descriptors, routing rules, and a mapping relationship indicated by a reverse rule, and the reverse rule indication is used to indicate whether to prohibit the use of the corresponding traffic descriptor , routing descriptor and routing rules.

As yet another implementation manner, the sending the first rule to the terminal device by the network device includes: sending, by the network device, first signaling to the terminal device, where the first signaling includes the first rule.

Optionally, the first signaling at least includes a signaling identifier; the signaling identifier is used to identify rule configuration signaling that prohibits creating a MA PDU session that accesses the LADN DNN.

In this embodiment, the downlink signaling configured by the rule (i.e. the above-mentioned first rule) of "prohibiting to create MA PDU sessions for accessing LADN DNN" can be added to signaling such as RRC, NAS, and IP, and the content contained in the downlink signaling It includes at least a signaling identifier; optionally, the downlink signaling may also include signaling content.

The embodiment of the present disclosure also provides a session processing device. FIG. 5 is a schematic diagram of the composition and structure of a session processing device according to an embodiment of the present disclosure; A rule is not to create a MA PDU session for accessing LADN DNN; the first rule is used for the terminal device to forbid creating a MA PDU session for accessing LADN DNN.

In some optional embodiments of the present disclosure, the apparatus further includes a first communication unit 32 configured to receive the first rule sent by the network device, and configure the first rule.

In some optional embodiments of the present disclosure, the first communication unit 32 is configured to receive the first rule sent by the network device through RRC signaling, NAS signaling or IP signaling.

In some optional embodiments of the present disclosure, the first communication unit 32 is configured to receive UE rule information sent by the network device, where the UE rule information includes the first rule.

In some optional embodiments of the present disclosure, the first communication unit 32 is configured to receive the URSP rule sent by the network device, where the URSP rule is used to indicate the first rule.

In some optional embodiments of the present disclosure, the first communication unit 32 is configured to receive the first rule sent by the network device, and the first signaling includes the first rule.

In some optional embodiments of the present disclosure, the first communication unit 32 is configured to receive the first rule sent by the network device after the terminal device where it is located performs network registration; or, at the terminal where it is located When the device moves to the LADN service area, receive the first rule sent by the network device.

In the embodiments of the present disclosure, the apparatus is applied to a terminal device. The first processing unit 31 in the described device can be composed of a central processing unit (CPU, Central Processing Unit), a digital signal processor (DSP, Digital Signal Processor), a micro control unit (MCU, Microcontroller Unit) or can be used in practical applications. Programmable gate array (FPGA, Field-Programmable Gate Array) realizes; The first communication unit 32 in the described device can pass communication module (comprising: basic communication suite, operating system, communication module, standardized interface and Protocol, etc.) and transceiver antenna implementation.

The embodiment of the present disclosure also provides a session processing device. FIG. 6 is a second structural diagram of a session processing device according to an embodiment of the present disclosure; as shown in FIG. 6 , the device includes a second communication unit 41 configured to send a first rule to a terminal device, and the first rule is used to The terminal device is prohibited from creating a MA PDU session for accessing the LADN DNN.

In some optional embodiments of the present disclosure, the second communication unit 41 is configured to send the first rule to the terminal device through RRC signaling, NAS signaling or IP signaling.

In some optional embodiments of the present disclosure, the second communication unit 41 is configured to send UE rule information to the terminal device, where the UE rule information includes the first rule.

In some optional embodiments of the present disclosure, the second communication unit 41 is configured to send a URSP rule to the terminal device, where the URSP rule is used to indicate the first rule.

In some optional embodiments of the present disclosure, the second communication unit 41 is configured to send a first signaling to the terminal device, where the first signaling includes the first rule.

In some optional embodiments of the present disclosure, the second communication unit 41 is configured to send the first rule to the terminal device after detecting that the terminal device performs network registration; or, upon detecting that the When the terminal device moves to the LADN service area, the first rule is sent to the terminal device.

In the embodiments of the present disclosure, the apparatus is applied to network equipment. The second communication unit 41 in the device can be implemented by a communication module (including: basic communication suite, operating system, communication module, standardized interface and protocol, etc.) and a transceiver antenna in practical applications.

It should be noted that: when the conversation processing device provided by the above-mentioned embodiment performs conversation processing, it only uses the division of the above-mentioned program modules for illustration. That is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the session processing device provided in the above embodiment and the session processing method embodiment belong to the same idea, and the specific implementation process thereof is detailed in the method embodiment, and will not be repeated here.

Based on the foregoing embodiments, the embodiments of the present disclosure further provide a communication device. Fig. 7 is a schematic diagram of the hardware composition structure of the communication device according to the embodiment of the present disclosure. As shown in Fig. 7, the communication device includes a memory 52, a processor 51, and a computer program stored in the memory 52 and operable on the processor 51 When the processor 51 executes the program, it implements the steps of the session processing method applied to the terminal device; or, when the processor 51 executes the program, it implements the steps of the session processing method applied to the network device .

Optionally, the communication device further includes at least one network interface 53 . Wherein, various components in the communication device are coupled together through the bus system 54 . It can be appreciated that the bus system 54 is used to implement connection communication between these components. In addition to the data bus, the bus system 54 also includes a power bus, a control bus and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 54 in FIG. 7 .

It can be understood that the memory 52 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memories. Among them, the non-volatile memory can be read-only memory (ROM, Read Only Memory), programmable read-only memory (PROM, Programmable Read-Only Memory), erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory) Only Memory), Electrically Erasable Programmable Read-Only Memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), Magnetic Random Access Memory (FRAM, Ferromagnetic Random Access Memory), Flash Memory (Flash Memory), Magnetic Surface Memory , CD, or CD-ROM (Compact Disc Read-Only Memory); magnetic surface storage can be disk storage or tape storage. The volatile memory may be random access memory (RAM, Random Access Memory), which is used as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM, Static Random Access Memory), Synchronous Static Random Access Memory (SSRAM, Synchronous Static Random Access Memory), Dynamic Random Access Memory Memory (DRAM, Dynamic Random Access Memory), synchronous dynamic random access memory (SDRAM, Synchronous Dynamic Random Access Memory), double data rate synchronous dynamic random access memory (DDRSDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), enhanced Synchronous Dynamic Random Access Memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), Synchronous Link Dynamic Random Access Memory (SLDRAM, SyncLink Dynamic Random Access Memory), Direct Memory Bus Random Access Memory (DRRAM, Direct Rambus Random Access Memory ). The memory 52 described by embodiments of the present disclosure is intended to include, but not be limited to, these and any other suitable types of memory.

The methods disclosed in the foregoing embodiments of the present disclosure may be applied to the processor 51 or implemented by the processor 51 . The processor 51 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 51 or instructions in the form of software. The aforementioned processor 51 may be a general-purpose processor, DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The processor 51 may implement or execute various methods, steps and logic block diagrams disclosed in the embodiments of the present disclosure. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in the embodiments of the present disclosure may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the memory 52, and the processor 51 reads the information in the memory 52, and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the communication device may be implemented by one or more Application Specific Integrated Circuit (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), Complex Programmable Logic Device (CPLD, Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, microprocessor (Microprocessor), or other electronic components are used to implement the aforementioned method.

In an exemplary embodiment, an embodiment of the present disclosure also provides a computer-readable storage medium, such as a memory 52 including a computer program. The above-mentioned computer program can be executed by the processor 51 of the communication device to complete the steps in the foregoing method. The computer-readable storage medium can be memories such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM; it can also be various devices including one or any combination of the above memories.

The computer-readable storage medium provided by the embodiments of the present disclosure has a computer program stored thereon, and when the program is executed by a processor, the steps of the session processing method applied to the terminal device are implemented; or, when the program is executed by the processor, the steps of the session processing method are implemented. Steps of the session processing method applied to a network device.

The methods disclosed in several method embodiments provided in this application can be combined arbitrarily to obtain new method embodiments under the condition of no conflict.

The features disclosed in several product embodiments provided in this application can be combined arbitrarily without conflict to obtain new product embodiments.

The features disclosed in several method or device embodiments provided in this application can be combined arbitrarily without conflict to obtain new method embodiments or device embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or May be integrated into another system, or some features may be ignored, or not implemented. In addition, the coupling, or direct coupling, or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical or other forms of.

The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units; Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may be used as a single unit, or two or more units may be integrated into one unit; the above-mentioned integration The unit can be realized in the form of hardware or in the form of hardware plus software functional unit.

Those of ordinary skill in the art can understand that all or part of the steps to realize the above method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above-mentioned method embodiments; and the aforementioned storage medium includes: various media that can store program codes such as removable storage devices, ROM, RAM, magnetic disks, or optical disks.

Alternatively, if the above-mentioned integrated units of the present disclosure are realized in the form of software function modules and sold or used as independent products, they may also be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solutions of the embodiments of the present disclosure or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for Make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the methods described in various embodiments of the present disclosure. The aforementioned storage medium includes: various media capable of storing program codes such as removable storage devices, ROM, RAM, magnetic disks or optical disks.

The above is only a specific implementation of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope of the present disclosure. should fall within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be determined by the protection scope of the claims.

Claims

A conversation processing method, the method comprising:

Based on the preconfigured first rule, or based on the first rule sent by the network device, the terminal device does not create a multiple access protocol data unit MA PDU session for accessing the local area data network LADN data network name DNN; the first rule is used for The terminal device is prohibited from creating a MA PDU session for accessing the LADN DNN.
The method according to claim 1, wherein the method further comprises:

The terminal device receives the first rule sent by the network device, and configures the first rule.
The method according to claim 2, wherein the terminal device receiving the first rule sent by the network device comprises:

The terminal device receives the first rule sent by the network device through radio resource control RRC signaling, non-access stratum NAS signaling or Internet Protocol IP signaling.
The method according to claim 2, wherein the terminal device receiving the first rule sent by the network device comprises:

The terminal device receives UE rule information sent by the network device, where the UE rule information includes the first rule.
The method according to claim 4, wherein the first rule includes a rule type and a rule content; the rule type indicates that it is forbidden to create a MA PDU session type for accessing LADN DNN.
The method according to claim 2, wherein the terminal device receiving the first rule sent by the network device comprises:

The terminal device receives the UE routing policy URSP rule sent by the network device, where the URSP rule is used to indicate the first rule.
The method according to claim 6, wherein the URSP rule includes at least one set of traffic descriptors, routing descriptors, routing rules, and a mapping relationship indicated by a reverse rule, and the reverse rule indication is used to indicate whether Routing rules composed of corresponding traffic descriptors, routing descriptors, and routing rules are prohibited.
The method according to claim 2, wherein the terminal device receiving the first rule sent by the network device comprises:

The terminal device receives the first rule sent by the network device through a first signaling, where the first signaling includes the first rule.
The method according to claim 8, wherein the first signaling at least includes a signaling identifier; the signaling identifier is used to identify rule configuration signaling that prohibits creating a MA PDU session that accesses LADN DNN.
The method according to claim 2, wherein the terminal device receiving the first rule sent by the network device comprises:

After the terminal device performs network registration, it receives the first rule sent by the network device; or,

When the terminal device moves to the LADN service area, the first rule sent by the network device is received.
A conversation processing method, the method comprising:

The network device sends a first rule to the terminal device, and the first rule is used for the terminal device to forbid creating an MA PDU session for accessing the LADN DNN.
The method according to claim 11, wherein the network device sending the first rule to the terminal device comprises:

The network device sends the first rule to the terminal device through radio resource control RRC signaling, non-access stratum NAS signaling or Internet Protocol IP signaling.
The method according to claim 11, wherein the network device sending the first rule to the terminal device comprises:

The network device sends UE rule information to the terminal device, where the UE rule information includes the first rule.
The method according to claim 13, wherein the first rule includes a rule type and a rule content; the rule type indicates that it is forbidden to create a MA PDU session type for accessing LADN DNN.
The method according to claim 11, wherein the network device sending the first rule to the terminal device comprises:

The network device sends a URSP rule to the terminal device, where the URSP rule is used to indicate the first rule.
The method according to claim 15, wherein the URSP rules include at least one set of traffic descriptors, routing descriptors, routing rules and mapping relationships indicated by reverse rules, and the reverse rule indications are used to indicate whether Routing rules composed of corresponding traffic descriptors, routing descriptors, and routing rules are prohibited.
The method according to claim 11, wherein the network device sending the first rule to the terminal device comprises:

The network device sends first signaling to the terminal device, where the first signaling includes the first rule.
The method according to claim 17, wherein the first signaling at least includes a signaling identifier; the signaling identifier is used to identify rule configuration signaling that prohibits creating a MA PDU session for accessing LADN DNN.
The method according to claim 11, wherein the network device sending the first rule to the terminal device comprises:

After the network device detects that the terminal device performs network registration, it sends the first rule to the terminal device; or,

When the network device detects that the terminal device moves to the LADN service area, send the first rule to the terminal device.
A session processing device, the device includes a first processing unit configured to not create a multi-access access local area data network LADN data network name DNN based on a pre-configured first rule, or based on a first rule sent by a network device Incoming protocol data unit MA PDU session; The first rule is used for the terminal device to forbid creating a MA PDU session for accessing LADN DNN.
A session processing device, the device includes a second communication unit configured to send a first rule to a terminal device, and the first rule is used for the terminal device to prohibit the creation of a MA PDU session for accessing LADN DNN.
A computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the method according to any one of claims 1 to 10 are realized; or,

When the program is executed by the processor, the steps of the method described in any one of claims 11 to 19 are realized.
A communication device, comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, when the processor executes the program, the steps of the method according to any one of claims 1 to 10 are realized; or,

The steps of the method described in any one of claims 11 to 19 are implemented when the processor executes the program.