CN111800889A - A method, terminal device and network device for processing a protocol data unit session - Google Patents

Abstract

The embodiments of the present invention disclose a method, terminal equipment and network equipment for processing a protocol data unit session, so as to improve the efficiency of establishing upper-layer services. The method includes: acquiring the maximum number of protocol data unit PDU sessions supported by the network; and processing the PDU sessions according to the maximum number of PDU sessions supported by the network.

Description

A method, terminal device and network device for processing a protocol data unit session

technical field

Embodiments of the present invention relate to the field of communications, and in particular, to a method, a terminal device, and a network device for processing a protocol data unit session.

Background technique

In the existing 5G protocol, the Public Land Mobile Network (PLMN) may limit the maximum number of PDU sessions supported by the User Equipment (UE). In the current protocol, the UE learns the maximum number of PDU sessions that the PLMN can support only when the UE establishes a PDU session multiple times, the established PDU sessions reach the maximum number limited by the PLMN, and the network gives a clear rejection.

It can be seen that the efficiency of establishing upper-layer services according to the current signaling process of Session Management (SM) is low.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present invention is to provide a method, terminal device and network device for processing a protocol data unit session, so as to improve the efficiency of establishing upper layer services.

A first aspect provides a method for processing a protocol data unit session, the method being executed by a user equipment, the method comprising: obtaining the maximum number of protocol data unit PDU sessions supported by a network; The maximum number of sessions to process PDU sessions.

A second aspect provides a method for processing a protocol data unit session, the method being executed by a network device, the method comprising: sending the maximum number of protocol data unit PDU sessions supported by the network to a user equipment UE.

In a third aspect, a user equipment is provided, comprising: an obtaining module for obtaining the maximum number of protocol data unit PDU sessions supported by a network; a processing module for obtaining, according to the maximum number of PDU sessions supported by the network, Handle PDU sessions.

In a fourth aspect, a network device is provided, the network device includes: a sending module configured to send the maximum number of protocol data unit PDU sessions supported by the network to a user equipment UE.

In a fifth aspect, a user equipment is provided, the terminal device includes a processor, a memory, and a computer program stored on the memory and executable on the processor, when the computer program is executed by the processor The steps of implementing a method for handling a protocol data unit session as described in the first aspect.

In a sixth aspect, a network device is provided, the network device includes a processor, a memory, and a computer program stored on the memory and executable on the processor, when the computer program is executed by the processor The steps of implementing a method for handling a protocol data unit session as described in the second aspect.

In a seventh aspect, a computer-readable storage medium is provided, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, a process as described in the first aspect or the second aspect is implemented The steps of a method for a protocol data unit session.

In the embodiment of the present invention, by obtaining the maximum number of protocol data unit PDU sessions supported by the network, and processing PDU sessions according to the maximum number of PDU sessions supported by the network, the efficiency of establishing upper-layer services can be improved.

Description of drawings

The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the attached image:

1 is a method for processing a protocol data unit session according to an embodiment of the present invention;

2 is a method for processing a protocol data unit session according to another embodiment of the present invention;

3 is a method for processing a protocol data unit session according to another embodiment of the present invention;

4 is a method for processing a protocol data unit session according to another embodiment of the present invention;

5 is a method for processing a protocol data unit session according to another embodiment of the present invention;

6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

7 is a schematic structural diagram of a network device according to an embodiment of the present invention;

8 is a schematic structural diagram of a user equipment according to another embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a network device according to another embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application. "And/or" in various embodiments of the present specification means at least one of the former and the former.

It should be understood that the technical solutions in the embodiments of the present invention can be applied to various communication systems, such as: a long term evolution (Long Term Evolution, LTE) system, an LTE frequency division duplex (Frequency Division Duplex, FDD) system, an LTE time division duplex ( Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS) or Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5G system, or New Radio (NR) system, Or for the subsequent evolution of the communication system.

In this embodiment of the present invention, the terminal equipment may include, but is not limited to, a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile telephone (Mobile Telephone), a user equipment (User Equipment, UE), a mobile phone (handset) and portable equipment (portable equipment), vehicle (vehicle), etc., the terminal equipment can communicate with one or more core networks via a radio access network (Radio Access Network, RAN), for example, the terminal equipment can be a mobile phone (or The terminal device may also be a portable, pocket-sized, hand-held, computer-built-in or vehicle-mounted mobile device.

In the embodiment of the present invention, the network device is a device deployed in a wireless access network to provide a wireless communication function for a terminal device. The network device may be a base station, and the base station may include various forms of macro base station, micro base station, relay station, access point, and the like. In systems with different radio access technologies, the names of devices with base station functions may vary. For example, in an LTE network, it is called an evolved NodeB (Evolved NodeB, eNB or eNodeB), and in a 3rd Generation (3G) network, it is called a Node B (Node B), or in a subsequent evolved communication system. Network equipment, etc., however the use of words does not constitute a limitation.

As shown in FIG. 1, an embodiment of the present invention provides a method 100 for processing a protocol data unit session, the method can be executed by a UE, in other words, the method can be executed by software or hardware installed in the UE, and the method includes Follow the steps below:

S112: Obtain the maximum number of protocol data unit PDU sessions supported by the network.

The network may be a PLMN, that is, this step may be to obtain the maximum number N1 of PDU sessions supported by the PLMN.

S114: Process the PDU session according to the maximum number of PDU sessions supported by the network.

The UE may process the PDU session, eg, establish or release the PDU session, according to the maximum number N1 of PDU sessions supported by the network.

Therefore, a method for processing a protocol data unit session provided by an embodiment of the present invention obtains the maximum number of protocol data unit PDU sessions supported by the network, and processes the PDU session according to the maximum number of PDU sessions supported by the network, It enables the UE to know the maximum number of PDU sessions supported by the network without trying to establish a PDU session multiple times, and processes the PDU session according to the maximum number of PDU sessions supported by the network, so as to avoid the request for establishing a PDU session being rejected by the network, thereby improving the establishment of the upper layer. business efficiency.

As shown in FIG. 2, an embodiment of the present invention provides a method 200 for processing a protocol data unit session, the method can be executed by a UE, in other words, the method can be executed by software or hardware installed in the UE, and the method includes Follow the steps below:

S212: Obtain the maximum number of protocol data unit PDU sessions supported by the network.

The network may be a PLMN, that is, this step may be to obtain the maximum number N1 of PDU sessions supported by the PLMN.

In an implementation manner, the maximum number of PDU sessions supported by the network may be preconfigured in the UE. For example, as part of the subscription data, operator A may preconfigure the parameters of network A in the UE, including the maximum number N1 of PDU sessions supported by the PLMN.

In another implementation manner, the maximum number of PDU sessions supported by the network may also be received from the network device, that is, the network device sends the maximum number N1 of PDU sessions supported by the PLMN to the UE.

In this case, the maximum number N1 of PDU sessions supported by the network may be included in a mobility management message or a PDU session message or a Radio Resource Control (Radio Resource Control, RRC) message sent by the network device.

The mobility management message may include a registration accept message or a configuration update message. For example, an information element (IE) may be added to the existing 5G registration accept message to indicate the maximum number N1 of PDU sessions supported by the PLMN. Specifically, the UE may send a registration request message to the network device, and the network device, in response to the registration request message, sends a registration accept message to the UE, which includes the maximum number of PDU sessions N1 supported by the PLMN.

In an implementation manner, for a roaming scenario, the maximum number of PDU sessions is the smaller of the maximum number of PDU sessions supported by the roaming network and the maximum number of PDU sessions supported by the home network.

For roaming scenarios, the maximum number of PDU sessions may also be pre-configured in the UE. For example, operator A can sign up for two other operators B/C that can roam, so operator A can The parameters of three networks A, B, and C are preconfigured, including the maximum number of PDU sessions supported by networks A, B, and C. In this way, when the UE is in the networks A, B, and C, the maximum number of protocol data unit PDU sessions supported by the network corresponding to each network is read from the UE, and then compared.

Of course, for a roaming scenario, the maximum number of PDU sessions may also be received from a network device.

S214: Process the PDU session according to the maximum number of PDU sessions supported by the network.

In an implementation manner, the PDU session may be processed according to the maximum number N1 of PDU sessions supported by the network and the maximum number of PDU sessions allowed by the protocol (the maximum number of PDU session IDs allowed by the protocol) N2.

In another implementation manner, the maximum number N1 of PDU sessions supported by the network, the maximum number N2 of PDU sessions allowed by the protocol, and the maximum number of PDU sessions specifically implemented by the UE (the UE' simplementation-specific maximum number of PDU sessions) N3, which handles PDU sessions.

Therefore, a method for processing a protocol data unit session provided by an embodiment of the present invention obtains the maximum number of protocol data unit PDU sessions supported by the network, and processes the PDU session according to the maximum number of PDU sessions supported by the network, The UE can know the maximum number of PDU sessions that the network can support without establishing PDU sessions multiple times, so as to avoid the request for establishing PDU sessions from being rejected by the network, thereby improving the efficiency of establishing upper-layer services.

As shown in FIG. 3, an embodiment of the present invention provides a method 300 for processing a protocol data unit session, the method can be executed by a UE, in other words, the method can be executed by software or hardware installed in the UE, the method includes Follow the steps below:

S312: Obtain the maximum number of protocol data unit PDU sessions supported by the network.

This step can be specifically similar to the foregoing steps S112 and S212, and details are not repeated here.

S314: Determine the smaller of the maximum number of PDU sessions supported by the network and the maximum number of PDU sessions allowed by the protocol as the maximum number of PDU sessions that the UE can establish in the network number.

Determine the smaller of the maximum number N1 of PDU sessions supported by the network and the maximum number N2 of PDU sessions allowed by the protocol as the maximum number of PDU sessions that the UE can establish in the network (The maximum number of PDU sessions which a UE can establish in a PLMN)n. In other words, n takes the smaller value of N1 and N2.

When there is an upper-layer service request to establish a new PDU session, the UE compares the values of n' and n, and determines whether the number n' of PDU sessions established by the UE in the network has reached the number n' of the UE in the network. The maximum number of PDU sessions that can be established in the network. That is, it is judged whether n'≥n is satisfied.

S316: In the case that the number of PDU sessions established by the UE in the network has reached the maximum number of PDU sessions that the UE can establish in the network, release the established PDU sessions at least one PDU session in the network device, and send a PDU session establishment request to the network device.

That is, in the case of n'≥n, the UE may release at least one established PDU session and establish a new PDU session.

In another implementation manner, this step may also include: the number of PDU sessions that the UE has established in the network has reached the maximum number of PDU sessions that the UE can establish in the network In the case of , give up sending the PDU session establishment request to the network device.

That is to say, in the case of n'≥n, the UE may not release the established PDU session, keep the established PDU session, nor establish a new PDU session.

S318: In the case that the number of PDU sessions that the UE has established in the network does not reach the maximum number of PDU sessions that the UE can establish in the network, send a PDU session to the network device A setup request is established to establish the PDU session.

In the case of n'<n, the UE sends a PDU session establishment request to the network device, thereby establishing a new PDU session.

Therefore, a method for processing a protocol data unit session provided by an embodiment of the present invention obtains the maximum number of protocol data unit PDU sessions supported by the network, and processes the PDU session according to the maximum number of PDU sessions supported by the network, It enables the UE to know the maximum number of PDU sessions that the network can support without establishing PDU sessions multiple times, so as to avoid the request for establishing a PDU session being rejected by the network, and it can reduce the network signaling process, save signaling resources, and improve service response speed. Improve the efficiency of building upper-level business.

As shown in FIG. 4, an embodiment of the present invention provides a method 400 for processing a protocol data unit session, the method can be executed by a UE, in other words, the method can be executed by software or hardware installed in the UE, and the method includes Follow the steps below:

S412: Obtain the maximum number of protocol data unit PDU sessions supported by the network.

This step can be specifically similar to the foregoing steps S112 and S212, and details are not repeated here.

S414: Determine the minimum of the maximum number of PDU sessions supported by the network, the maximum number of PDU sessions allowed by the protocol, and the maximum number of PDU sessions specifically implemented by the UE as the UE in the The maximum number of PDU sessions that can be established in the network.

The UE determines the minimum of the maximum number of PDU sessions N1 supported by the PLMN, the maximum number of PDU sessions N2 allowed by the protocol, and the maximum number of PDU sessions N3 implemented by the UE as the UE can be in the PLMN. The maximum number n of established PDU sessions. In other words, n takes the smallest value among N1, N2, and N3.

When there is an upper-layer service request to establish a new PDU session, the UE compares the values of n' and n, and determines whether the number n' of PDU sessions established by the UE in the network has reached the number n' of the UE in the network. The maximum number of PDU sessions that can be established in the network. That is, it is judged whether n'≥n is satisfied.

S416: In the case that the number of PDU sessions that the UE has established in the network has reached the maximum number of PDU sessions that the UE can establish in the network, release the established PDU sessions at least one PDU session in the network device, and send a PDU session establishment request to the network device.

That is, in the case of n'≥n, the UE may release at least one established PDU session and establish a new PDU session.

In another implementation manner, this step may also include: the number of PDU sessions that the UE has established in the network has reached the maximum number of PDU sessions that the UE can establish in the network In the case of , give up sending the PDU session establishment request to the network device.

That is, in the case of n'≥n, the UE may not release the established PDU session, keep the existing established PDU session, and not establish a new PDU session.

S418: In the case that the number of PDU sessions that the UE has established in the network does not reach the maximum number of PDU sessions that the UE can establish in the network, send a PDU session to the network device A setup request is established to establish the PDU session.

In the case of n'<n, the UE sends a PDU session establishment request to the network device, thereby establishing a new PDU session.

Therefore, a method for processing a protocol data unit session provided by an embodiment of the present invention obtains the maximum number of protocol data unit PDU sessions supported by the network, and processes the PDU session according to the maximum number of PDU sessions supported by the network, It enables the UE to know the maximum number of PDU sessions that the network can support without establishing PDU sessions multiple times, so as to avoid the request for establishing a PDU session being rejected by the network, and it can reduce the network signaling process, save signaling resources, and improve service response speed. Improve the efficiency of building upper-level business.

As shown in FIG. 5 , an embodiment of the present invention provides a method 500 for processing a protocol data unit session, and the method can be performed by a network device and a UE, in other words, the method can be implemented by software or hardware installed in the network device and the UE To execute, the method includes the following steps:

S522: The network device sends the maximum number of PDU sessions supported by the network to the UE.

The network device sends the maximum number N1 of PDU sessions supported by the PLMN to the UE, so that the UE can obtain the maximum number of protocol data unit PDU sessions supported by the network.

S512: The UE receives the maximum number of PDU sessions supported by the network sent by the network device.

The UE receives the maximum number N1 of PDU sessions supported by the PLMN.

S514: The UE processes the PDU session according to the maximum number of PDU sessions supported by the network.

The details may be similar to the corresponding steps in Embodiments 100-400, and details are not repeated here.

S524: The network device sends the updated maximum number N1' of PDU sessions supported by the network to the UE.

In an implementation manner, when the maximum number N1 of PDU sessions supported by the network changes, it can be sent to the UE through other core network messages, for example, the updated maximum number N1' of PDU sessions supported by the PLMN can be included in the in the configuration update message sent by the network device. Of course, the network device may also send the updated maximum number N1' of PDU sessions supported by the PLMN through other commands or messages.

S516: Receive the updated maximum number of PDU sessions supported by the network sent by the network device, and process the PDU sessions according to the updated maximum number of PDU sessions supported by the network.

In an implementation manner, the UE may determine, according to the updated maximum number N1' of PDU sessions supported by the PLMN and the maximum number N2 of PDU sessions allowed by the protocol, the number of PDU sessions that the UE can establish in the network. The maximum number n of PDU sessions.

In another implementation manner, the UE may update the maximum number N1' of PDU sessions supported by the PLMN, the maximum number N2 of PDU sessions allowed by the protocol, and the maximum number of PDU sessions implemented by the UE. N3: Determine the maximum number n of PDU sessions that the UE can establish in the network.

And, in an implementation manner, in the case where the number n' of PDU sessions established by the UE in the network has reached the maximum number n of PDU sessions that the UE can establish in the network Next, the UE may release at least one PDU session in the established PDU sessions, and send a PDU session establishment request to the network device, thereby establishing a new PDU session.

In an implementation manner, when the number n' of PDU sessions that the UE has established in the network has reached the maximum number n of PDU sessions that the UE can establish in the network, The UE may give up sending the PDU session establishment request to the network device, that is, neither release the established PDU session nor establish a new PDU session.

In an implementation manner, when the number n' of PDU sessions that the UE has established in the network does not reach the maximum number n of PDU sessions that the UE can establish in the network, The UE may send a PDU session establishment request to the network device, thereby establishing the PDU session.

The details may be similar to the corresponding steps in Embodiments 100-400, and details are not repeated here.

Therefore, a method for processing a protocol data unit session provided by an embodiment of the present invention is to receive the updated maximum number of PDU sessions supported by the network sent by a network device; according to the updated maximum number of PDU sessions supported by the network The maximum number of PDU sessions can be processed, which can reduce the network signaling process, save signaling resources, improve service response speed, and improve the efficiency of establishing upper-layer services.

A method for processing a protocol data unit session according to an embodiment of the present invention has been described in detail above with reference to FIG. 1 to FIG. 5 . The user equipment according to the embodiment of the present invention will be described in detail below with reference to FIG. 6 .

FIG. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 6 , the user equipment 600 includes: an acquisition module 610 and a processing module 620 .

The obtaining module 610 is configured to obtain the maximum number of protocol data unit PDU sessions supported by the network. The processing module 620 is configured to process the PDU session according to the maximum number of PDU sessions supported by the network.

The user equipment 600 according to the embodiment of the present invention may refer to the process performed by the user equipment in the method 100 corresponding to the embodiment of the present invention, and each unit/module in the user equipment 600 and the above-mentioned other operations and/or functions are respectively for implementing the method 100, and can achieve the same or equivalent technical effects, and for the sake of brevity, details are not repeated here.

In an implementation manner, for a roaming scenario, the maximum number of PDU sessions is the smaller of the maximum number of PDU sessions supported by the roaming network and the maximum number of PDU sessions supported by the home network.

In an implementation manner, the processing module 620 is configured to process the PDU session according to the maximum number of PDU sessions supported by the network and the maximum number of PDU sessions allowed by the protocol. Alternatively, the processing module 620 is configured to process the PDU session according to the maximum number of PDU sessions supported by the network, the maximum number of PDU sessions allowed by the protocol, and the maximum number of PDU sessions specifically implemented by the UE.

In an implementation manner, the processing module 620 is configured to determine the smaller of the maximum number of PDU sessions supported by the network and the maximum number of PDU sessions allowed by the protocol as the UE in the The maximum number of PDU sessions that can be established in the network.

The processing module 620 is configured to release the established PDU sessions in the case that the number of PDU sessions established by the UE in the network has reached the maximum number of PDU sessions that the UE can establish in the network at least one PDU session in the PDU sessions, and send a PDU session establishment request to the network device.

Alternatively, the processing module 620 is configured to give up sending to the UE in the case that the number of PDU sessions that the UE has established in the network has reached the maximum number of PDU sessions that the UE can establish in the network. The network device sends a PDU session establishment request.

Alternatively, the processing module 620 is configured to send a message to the UE in the case that the number of PDU sessions established by the UE in the network does not reach the maximum number of PDU sessions that the UE can establish in the network The network device sends a PDU session establishment request, thereby establishing the PDU session.

In an implementation manner, the processing module 620 is configured to determine the maximum number of PDU sessions supported by the network, the maximum number of PDU sessions allowed by the protocol, and the maximum number of PDU sessions specifically implemented by the UE. The smallest one is determined as the maximum number of PDU sessions that the UE can establish in the network.

The processing module 620 is configured to release the established PDU sessions in the case that the number of PDU sessions established by the UE in the network has reached the maximum number of PDU sessions that the UE can establish in the network at least one PDU session in the PDU sessions, and send a PDU session establishment request to the network device.

Alternatively, the processing module 620 is configured to give up sending to the UE in the case that the number of PDU sessions that the UE has established in the network has reached the maximum number of PDU sessions that the UE can establish in the network. The network device sends a PDU session establishment request.

Alternatively, the processing module 620 is configured to send a message to the UE in the case that the number of PDU sessions established by the UE in the network does not reach the maximum number of PDU sessions that the UE can establish in the network The network device sends a PDU session establishment request, thereby establishing the PDU session.

In an implementation manner, the maximum number of PDU sessions supported by the network is preconfigured in the UE or received from a network device.

In an implementation manner, when the maximum number of PDU sessions supported by the network is received from the network device, the maximum number of PDU sessions supported by the network is included in the data sent by the network device. Mobility management message or PDU session message or radio resource control RRC message.

In an implementation manner, the mobility management message includes a registration accept message or a configuration update message.

In an implementation manner, the obtaining module 610 is configured to receive the updated maximum number of PDU sessions supported by the network sent by the network device; the processing of the PDU sessions according to the maximum number of PDU sessions supported by the network, The method includes: processing the PDU session according to the updated maximum number of PDU sessions supported by the network.

In an implementation manner, the updated maximum number of PDU sessions supported by the network is included in the configuration update message sent by the network device.

The user equipment 600 according to this embodiment of the present invention may also refer to the processes performed by the user equipment in the methods 200 to 500 corresponding to the embodiments of the present invention, and each unit/module in the user equipment 600 and the above-mentioned other operations and/or functions are respectively In order to implement the corresponding processes performed by the user equipment in the methods 200-500, and to achieve the same or equivalent technical effects, for brevity, details are not repeated here.

FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention. As shown in FIG. 7 , the network device 700 includes: a sending module 710 .

The sending module 710 is configured to send the maximum number of protocol data unit PDU sessions supported by the network to the user equipment UE.

In an implementation manner, the maximum number of PDU sessions supported by the network is included in a mobility management message or a PDU session message or a radio resource control RRC message sent by the network device.

In an implementation manner, the mobility management message includes a registration accept message or a configuration update message.

In an implementation manner, the sending module 710 is further configured to send the updated network-supported PDU session to the UE after the sending of the maximum number of network-supported PDU sessions to the user equipment UE. maximum number.

In an implementation manner, the updated maximum number of PDU sessions supported by the network is included in the configuration update message sent by the network device.

The network device 700 according to the embodiment of the present invention may refer to the process performed by the network device in the method 500 corresponding to the embodiment of the present invention, and each unit/module and the above-mentioned other operations and/or functions in the network device 700 are for implementing the method respectively. The process performed by the network device in 500 can achieve the same or equivalent technical effect, and for the sake of brevity, details are not repeated here.

FIG. 8 is a block diagram of a user equipment according to another embodiment of the present invention. The user equipment 800 shown in FIG. 8 includes: at least one processor 801 , a memory 802 , at least one network interface 804 and a user interface 803 . The various components in user equipment 800 are coupled together by bus system 805 . It can be understood that the bus system 805 is used to implement the connection communication between these components. In addition to the data bus, the bus system 805 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, the various buses are labeled as bus system 805 in FIG. 8 .

The user interface 803 may include a display, a keyboard, a pointing device (eg, a mouse, a trackball), a touch pad or a touch screen, and the like.

It can be understood that the memory 802 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be Read-Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (Erasable PROM, EPROM), Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) and Direct memory bus random access memory (DirectRambus RAM, DRRAM). The memory 802 of the systems and methods described in embodiments of the present invention is intended to include, but not be limited to, these and any other suitable types of memory.

In some embodiments, memory 802 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set of them: an operating system 8021 and applications 8022.

The operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application program 8022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., for implementing various application services. The program for implementing the method of the embodiment of the present invention may be included in the application program 8022 .

In this embodiment of the present invention, the user equipment 800 further includes: a computer program stored in the memory 802 and executable on the processor 801 , when the computer program is executed by the processor 801 to implement the steps performed by the user equipment in the following methods 100-300 .

The methods disclosed in the above embodiments of the present invention may be applied to the processor 801 or implemented by the processor 801 . The processor 801 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method may be completed by an integrated logic circuit of hardware in the processor 801 or an instruction in the form of software. The above-mentioned processor 801 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other possible Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other computer-readable storage media that are mature in the art. The computer-readable storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and completes the steps of the above method in combination with its hardware. Specifically, a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 801, each step performed by the user equipment in the foregoing embodiments of the methods 100-500 is implemented.

It can be understood that the embodiments described in the embodiments of the present invention may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), Digital Signal Processing Device (DSP Device, DSPD), programmable logic Devices (ProgrammableLogic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in this application or a combination thereof.

For software implementation, the techniques described in the embodiments of the present invention may be implemented through modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present invention. Software codes may be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

The user equipment 800 can implement each process implemented by the user equipment in the foregoing embodiments, and can achieve the same or equivalent technical effects, which are not repeated here to avoid repetition.

Please refer to FIG. 9 . FIG. 9 is a structural diagram of a network device applied in an embodiment of the present invention, which can implement the details of network device implementation in method embodiments 100-300, and achieve the same effect. As shown in FIG. 9, the network device 900 includes: a processor 901, a transceiver 902, a memory 903 and a bus interface, wherein:

In this embodiment of the present invention, the network device 900 further includes: a computer program stored on the memory 903 and executable on the processor 901 , and the computer program is executed by the processor 901 to implement the steps of the network device in the method 500 .

In FIG. 9 , the bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 901 and various circuits of memory represented by memory 903 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 902 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium.

The processor 901 is responsible for managing the bus architecture and general processing, and the memory 903 may store data used by the processor 901 in performing operations.

Embodiments of the present invention further provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, each process of the foregoing method embodiment 500 can be implemented, and the same technical effect can be achieved. , in order to avoid repetition, it will not be repeated here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk, or an optical disk.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present invention.

The embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of the present invention, without departing from the spirit of the present invention and the scope protected by the claims, many forms can be made, which all belong to the protection of the present invention.

Claims (23)

1. A method for processing a protocol data unit session, wherein the method is performed by a user equipment UE, and the method comprises: Get the maximum number of protocol data unit PDU sessions supported by the network; PDU sessions are processed according to the maximum number of PDU sessions supported by the network. 2. The method according to claim 1, wherein, for a roaming scenario, the maximum number of PDU sessions is the maximum number of PDU sessions supported by the roaming network and the maximum number of PDU sessions supported by the home network. the lesser of . 3. The method according to claim 1, wherein the processing of the PDU session according to the maximum number of PDU sessions supported by the network comprises: Process PDU sessions according to the maximum number of PDU sessions supported by the network and the maximum number of PDU sessions allowed by the protocol; or, PDU sessions are processed according to the maximum number of PDU sessions supported by the network, the maximum number of PDU sessions allowed by the protocol, and the maximum number of PDU sessions implemented by the UE. 4. The method of claim 3, wherein the processing of the PDU session according to the maximum number of PDU sessions supported by the network and the maximum number of PDU sessions allowed by the protocol comprises: Determine the smaller of the maximum number of PDU sessions supported by the network and the maximum number of PDU sessions allowed by the protocol as the maximum number of PDU sessions that the UE can establish in the network; In the case that the number of PDU sessions established by the UE in the network has reached the maximum number of PDU sessions that the UE can establish in the network, release the PDU sessions in the established PDU sessions. at least one PDU session, and send a PDU session establishment request to the network device; or, In the case that the number of PDU sessions that the UE has established in the network has reached the maximum number of PDU sessions that the UE can establish in the network, give up sending the PDU session establishment to the network device request; or, In the case that the number of PDU sessions that the UE has established in the network does not reach the maximum number of PDU sessions that the UE can establish in the network, send a PDU session establishment request to the network device , thereby establishing the PDU session. 5. The method of claim 3, wherein the method is based on the maximum number of PDU sessions supported by the network, the maximum number of PDU sessions allowed by a protocol, and the number of PDU sessions implemented specifically by the UE. The maximum number to process PDU sessions, including: Determine the minimum of the maximum number of PDU sessions supported by the network, the maximum number of PDU sessions allowed by the protocol, and the maximum number of PDU sessions specifically implemented by the UE as the UE in the network. The maximum number of PDU sessions that can be established; In the case that the number of PDU sessions established by the UE in the network has reached the maximum number of PDU sessions that the UE can establish in the network, release the PDU sessions in the established PDU sessions. at least one PDU session, and send a PDU session establishment request to the network device; or, In the case that the number of PDU sessions that the UE has established in the network has reached the maximum number of PDU sessions that the UE can establish in the network, give up sending the PDU session establishment to the network device request; or, In the case that the number of PDU sessions that the UE has established in the network does not reach the maximum number of PDU sessions that the UE can establish in the network, send a PDU session establishment request to the network device , thereby establishing the PDU session. 6. The method of claim 1, wherein the maximum number of PDU sessions supported by the network is preconfigured in the UE or received from a network device. 7. The method according to claim 6, wherein, in the case that the maximum number of PDU sessions supported by the network is received from the network device, the maximum number of PDU sessions supported by the network It is included in the mobility management message or the PDU session message or the radio resource control RRC message sent by the network device. 8. The method of claim 7, wherein the mobility management message comprises a registration accept message or a configuration update message. 9. The method of claim 1, wherein the acquiring the maximum number of protocol data unit (PDU) sessions supported by the network comprises: receiving the updated maximum number of PDU sessions supported by the network sent by the network device; The processing of the PDU session according to the maximum number of PDU sessions supported by the network includes: processing the PDU session according to the updated maximum number of PDU sessions supported by the network. 10. The method according to claim 9, wherein the updated maximum number of PDU sessions supported by the network is included in a configuration update message sent by the network device. 11. A method for processing a protocol data unit session, wherein the method is performed by a network device, the method comprising: Send the maximum number of protocol data unit PDU sessions supported by the network to the user equipment UE. The method according to claim 11, wherein the maximum number of PDU sessions supported by the network is included in a mobility management message or a PDU session message or a radio resource control RRC message sent by the network device. 13. The method of claim 12, wherein the mobility management message comprises: a registration accept message or a configuration update message. 14. The method of claim 11, wherein if the maximum number of PDU sessions supported by the network changes, the method further comprises: Send the updated maximum number of PDU sessions supported by the network to the UE. 15. The method of claim 14, wherein the updated maximum number of PDU sessions supported by the network is included in a configuration update message sent by the network device. 16. A user equipment, comprising: an acquisition module for acquiring the maximum number of protocol data unit PDU sessions supported by the network; A processing module, configured to process the PDU session according to the maximum number of PDU sessions supported by the network. 17. The method of claim 16, wherein the processing module is configured to: process the PDU session according to the maximum number of PDU sessions supported by the network and the maximum number of PDU sessions allowed by the protocol; or , The processing module is configured to: process the PDU session according to the maximum number of PDU sessions supported by the network, the maximum number of PDU sessions allowed by the protocol, and the maximum number of PDU sessions specifically implemented by the UE. 18. The method of claim 16, wherein the maximum number of PDU sessions supported by the network is preconfigured in the user equipment or received from a network device. 19. A network device, comprising: A sending module, configured to send the maximum number of protocol data unit PDU sessions supported by the network to the user equipment UE. The method according to claim 19, wherein the maximum number of PDU sessions supported by the network is included in a mobility management message or a PDU session message or a radio resource control RRC message sent by the network device. 21. A user equipment, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor to achieve the following: The steps of a method of handling a protocol data unit session as claimed in any one of claims 1 to 10. 22. A network device, comprising: a memory, a processor, and a computer program stored on the memory and running on the processor, the computer program being executed by the processor to achieve: The steps of a method of handling a protocol data unit session as claimed in any one of claims 11 to 15. 23. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program according to any one of claims 1 to 10 is implemented. the steps of a method of handling a protocol data unit session; or The steps of a method of handling a protocol data unit session as claimed in any one of claims 11 to 15.

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