CN113645716B

CN113645716B - Packet data network connection method, device and storage medium

Info

Publication number: CN113645716B
Application number: CN202010393001.2A
Authority: CN
Inventors: 李文涛
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2023-08-29
Anticipated expiration: 2040-05-11
Also published as: CN113645716A

Abstract

The present disclosure relates to a packet data network connection method, apparatus and storage medium. The packet data network connection method includes: responding to a PDN connection request of a packet data network which is required to be sent in the process of tracking area updating TAU of user equipment; delay sending PDN connection request; according to the method and the device, the state of the EMM when the PDN connection request is sent in the TAU process is determined, delay sending processing is carried out on the PDN connection request, and the success rate of PDN connection in the TAU process is improved.

Description

Packet data network connection method, device and storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, and a storage medium for connecting a packet data network (Packet Data Network, PDN).

Background

The user equipment communicates via a PDN connection, based on what is described in the third generation partnership project (3rd Generation Partnership Project,3GPP) protocol.

In the related art, the user equipment may initiate a PDN connection during a tracking area update (Tracking Area Update, TAU). However, the PDN connection request sent during the TAU procedure may be rejected, and the PDN connection fails.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a packet data network connection method, apparatus, and storage medium.

According to a first aspect of embodiments of the present disclosure, there is provided a packet data network connection method, including:

responding to a PDN connection request of a packet data network which is required to be sent in the process of tracking area updating TAU of user equipment; and delaying sending the PDN connection request.

In one embodiment, delaying the sending of a PDN connection request includes: determining a mobility management EMM status; based on the EMM status, a PDN connection request is sent.

In another embodiment, sending the PDN connection request based on the EMM status includes: if the EMM state is the TAU initiating state, a delay timer is started, and a PDN connection request is sent after the delay timer is overtime.

In yet another embodiment, the duration of the delay timer is determined based on the maximum duration of the TAU procedure execution.

In yet another embodiment, sending the PDN connection request based on the EMM status includes: and if the EMM state is determined to enter the EMM registration state, sending a PDN connection request.

In yet another embodiment, determining that the EMM status enters the EMM registration status includes: in response to receiving the TAU accept message, it is determined that the EMM state enters an EMM registration state.

According to a second aspect of embodiments of the present disclosure, there is provided a packet data network connection apparatus for use in a user equipment, the apparatus comprising: a processing unit, configured to determine that a user equipment needs to send a PDN connection request of a packet data network in a tracking area update TAU process; and the sending unit is used for delaying sending the PDN connection request in response to the need of sending the PDN connection request of the packet data network in the process of tracking area updating TAU by the user equipment.

In one embodiment, the processing unit is further configured to determine a mobility management EMM status; the transmitting unit transmits a PDN connection request based on the EMM status.

In another embodiment, the sending unit sends the PDN connection request based on the EMM status in the following manner:

if the EMM state is the TAU starting state, starting a delay timer, and sending a PDN connection request after the delay timer is overtime.

In yet another embodiment, the processing unit is further configured to: determining that the EMM status enters an EMM registration status; a transmitting unit, configured to transmit a PDN connection request based on the EMM status in the following manner:

and if the processing unit determines that the EMM state enters the EMM registration state, transmitting a PDN connection request.

In yet another embodiment, the processing unit determines that the EMM state enters the EMM registration state by:

in response to receiving the TAU accept message, it is determined that the EMM state enters an EMM registration state.

According to a third aspect of the disclosed embodiments, there is provided a packet data network connection device comprising:

a processor; a memory for storing processor-executable instructions;

wherein the processor is configured to: the first aspect or any implementation manner of the first aspect is performed.

According to a fourth aspect of the disclosed embodiments, there is provided a non-transitory computer readable storage medium, which when executed by a processor of a mobile terminal, enables the mobile terminal to perform the packet data network connection method of the first aspect or any one of the embodiments of the first aspect.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: the PDN connection is sent in the tracking area updating process, and the PDN connection request is delayed to be sent, so that the probability of sending the PDN connection request in the EMM registration state can be improved, the success rate of PDN connection in the tracking area updating process is further improved, and the use experience of a user is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a flow chart illustrating a method of packet data network connection according to an exemplary embodiment.

Fig. 2 is a flow diagram illustrating a delayed transmission packet data network connection according to an exemplary embodiment.

Fig. 3 is a block diagram of a packet data network connection device, according to an example embodiment.

Fig. 4 is a block diagram illustrating an apparatus for packet data network connection according to an example embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

In the related art, based on the description in the third generation partnership project (3rd Generation Partnership Project,3GPP) protocol, a User Equipment (UE) needs to initiate a PDN connection in a mobility management (EPS Mobility Management, EMM) registration state (REGISTERED), and there is no detailed description about other states of the EMM, so that when the EMM state of the UE does not satisfy the condition, the transmitted PDN connection request is rejected.

According to the above description, in one of the cases, when the UE sends a PDN connection request, the UE is performing a TAU procedure at the same time, because the EMM state is not updated to the EMM registration state when the UE initiates the TAU request to the network, the PDN connection request sent at this time will fail, and when the PDN connection request fails, the UE needs a long time to perform data recovery, which will affect the data usage experience of the user.

In view of this, the embodiments of the present disclosure provide a packet data network connection method, which performs delay transmission processing on a PDN connection request in a TAU procedure, so that a UE may send the PDN connection request in an EMM registration state, thereby improving the success rate of PDN connection in the TAU procedure.

In one manner, embodiments of the present disclosure delay sending a PDN connection request based on EMM status decisions when sending a PDN connection request during TAU. After receiving the TAU receiving message, namely when the EMM state enters the EMM registration state, the UE sends the PDN connection request message, so that the success rate of the PDN connection request in the TAU process can be improved, and the data use experience of a user is improved.

Fig. 1 is a flowchart illustrating a PDN connection method according to an exemplary embodiment, as shown in fig. 1, including the following steps.

In step S11, a PDN connection request is sent in response to the UE in the TAU procedure.

In the embodiment of the disclosure, when the UE has a communication requirement, a PDN connection needs to be established, a PDN connection request is sent, and when the PDN connection request is sent, it needs to be determined whether the UE is executing a TAU procedure.

In step S12, the transmission of the PDN connection request is delayed.

When the UE is sending the PDN connection request, determining that the UE is executing a TAU process, and performing delay sending processing on the PDN connection request.

In the embodiment of the disclosure, delay transmission processing is performed on the PDN connection request, where the duration of delay transmission may be a preset period of time, and execution of the TAU procedure ends in the preset period of time, where the PDN connection request is successfully transmitted, otherwise, the EMM state is not updated to the EMM registration state due to that the TAU procedure is not executed, and transmission of the PDN connection request fails.

The procedure of the packet data connection delay transmission of the above-described embodiments will be described below in connection with practical applications.

Fig. 2 is a flow diagram illustrating a delayed transmission packet data network connection according to an exemplary embodiment, and the delayed transmission packet data network connection request includes the following steps, as shown in fig. 2.

In step S121, the EMM status is determined.

Wherein EMM is mobility management of evolved packet system (Evolved Packet System, EPS), and when EPS performs mobility management operation, EMM status update of UE is triggered to determine EMM status.

After determining the EMM status, the mobility management operation may also be performed based on the EMM status determination of the UE. Further illustratively, when the UE initiates the TAU procedure, the EMM status update is performed in response to the TAU procedure, determining a status of the EMM update.

In step S122, a PDN connection request is sent based on the EMM status.

In the embodiment of the present disclosure, according to the EMM status obtained in step S121, it is determined that the UE initiates a TAU procedure, and when the TAU procedure is performed, the EMM is updated to the registration status, and a PDN connection request is sent.

Further describing, when the EMM state is checked to be the EMM initiating state, the EMM initiating state may be understood as the EMM-TRACKING-AREA-update-INITIATED state, and the UE is determined to initiate the TAU procedure, and at this time, a delay timer is started to perform delay sending processing on the PDN connection request. The working time of the delay timer can be set to be the maximum execution time of the TAU process, so that the TAU process can be ensured to be executed within the delay timing working time.

In the embodiment of the disclosure, after starting the delay timer, the UE sends the PDN connection request in the following manner:

in one embodiment, after the delay timer works overtime, the UE sends a PDN connection request, that is, when the delay timer works beyond the set working time, the delay timer finishes timing, which can be understood as that the delay operation is completed, and the UE sends the PDN connection request.

In another embodiment, when the UE receives the TAU accept message, a PDN connection request is sent.

The UE receives a TAU ACCEPT message, TRACKING AREA UPDATE ACCEPT message, characterizing the EMM state into EMM registration. Based on the EMM in the registration state, the UE transmits the PDN connection request, so that the success rate of transmitting the PDN connection request can be improved.

The above embodiment illustrates that when the TAU is initiated, the EMM state is not updated to the EMM registration state, in which case sending the PDN connection request fails. After the PDN connection fails, a longer time is required for data recovery compared with the TAU procedure execution duration, which affects the user experience. Because the TAU procedure is executed for a short time, the method of delaying the sending of the PDN connection request in the embodiment of the present disclosure may be adopted, and the sending may be performed after waiting for the EMM status update to the EMM registration status, so that the success rate of the PDN connection may be improved.

Embodiments of the present disclosure will be described below by way of example illustrating the PDN request delay transmission method described above. The timer T3430 is configured for TAU procedure timing according to the description in the 3GPP protocol. The working duration of the timer T3430 is 15S, and if the UE initiates a TAU request, the timer T3430 is started. In the working period of the timer T3430, when the UE receives the TRACKING AREA UPDATE ACCEPT message, the timer T3430 stops counting. Reset TAU attempt counter, enter EMM registration state, set EPS update state to EU1 update.

According to the above description, the operation duration of the delay timer may be set to the same operation duration as the timer T3430. When the UE needs to send a PDN connection request, the EMM status is checked first. If the EMM status checked by the UE is a TAU-initiated status, for example, in EMM-transmission-AREA-update-INITIATED status, it indicates that the UE is performing a TAU procedure. At this time, a delay timer may be started to delay sending the PDN connection request. The UE checking the EMM state as the TAU initiating state may be understood as that when the UE needs to send a PDN connection request, the UE initiates a TAU procedure synchronously, and the delay timer and T3430 start working synchronously. It can also be understood that when the UE needs to send a PDN connection request, the UE has initiated a TAU procedure, and in the process of executing the TAU procedure, T3430 has started to time the TAU procedure, and the time of T3430 starts before the time of the delay timer. In both cases, when the delay timer works overtime, that is, the working time of the delay timer exceeds 15s, the PDN connection request can be sent. Or when the UE receives a TAU accept message, i.e. TRACKING AREA update accept message, in the delay timer working period of 15s, it indicates that the TAU request is acknowledged by the network. Meanwhile, the EMM state enters the EMM registration state, and the PDN connection request is successfully sent.

Through the embodiment, delay processing is performed on the PDN connection request sent by the UE in the TAU process, and a delay timer is set to ensure that the PDN connection request is sent by the UE after the TAU process is executed. Namely, when the UE receives the TAU accept message, the UE sends the PDN connection request in the EMM state into the EMM registration state. By the method in the embodiment of the disclosure, the problem that in the execution process of the TAU, as the EMM state is not updated to the EMM registration state, the sent PDN connection request fails, so that a long time is required for data recovery is avoided. The method in the embodiment of the disclosure improves the success rate of the UE sending the PDN connection request in the TAU process, so that the user can conduct data communication in time, and the data use experience of the user is improved.

Based on the same conception, the embodiment of the disclosure also provides a packet data network connection device.

It will be appreciated that, in order to achieve the above-described functions, the packet data network connection device provided in the embodiments of the present disclosure includes corresponding hardware structures and/or software modules that perform the respective functions. The disclosed embodiments may be implemented in hardware or a combination of hardware and computer software, in combination with the various example elements and algorithm steps disclosed in the embodiments of the disclosure. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not to be considered as beyond the scope of the embodiments of the present disclosure.

Fig. 3 is a block diagram of a packet data network connection device 300, according to an example embodiment. Referring to fig. 3, the apparatus 300 includes a processing unit 301 and a transmitting unit 302. The processing unit 301 is configured to determine that the user equipment needs to send a PDN connection request in making a TAU. The sending unit 302 is configured to delay sending the PDN connection request in response to the user equipment needing to send the PDN connection request in making the TAU.

In an embodiment, the processing unit 301 is further configured to determine an EMM status. The transmitting unit transmits a PDN connection request based on the EMM status.

In another embodiment, the sending unit 302 sends the PDN connection request based on the EMM status in the following manner: if the EMM state is the TAU starting state, starting a delay timer, and sending a PDN connection request after the delay timer is overtime.

In yet another embodiment, the processing unit 301 is further configured to: the EMM state is determined to enter the EMM registration state. A transmitting unit, configured to transmit a PDN connection request based on the EMM status in the following manner: if the processing unit 301 determines that the EMM state enters the EMM registration state, a PDN connection request is sent.

In yet another embodiment, processing unit 301 determines that the EMM state enters the EMM registration state by: in response to receiving the TAU accept message, it is determined that the EMM state enters an EMM registration state.

Fig. 4 is a block diagram illustrating an apparatus 400 for packet data network connection, according to an example embodiment. For example, apparatus 400 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, or the like.

Referring to fig. 4, apparatus 400 may include one or more of the following components: a processing component 402, a memory 404, a power component 406, a multimedia component 408, an audio component 410, an input/output (I/O) interface 412, a sensor component 414, and a communication component 416.

The processing component 402 generally controls the overall operation of the apparatus 400, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 402 can include one or more modules that facilitate interaction between the processing component 402 and other components. For example, the processing component 402 may include a multimedia module to facilitate interaction between the multimedia component 408 and the processing component 402.

Memory 404 is configured to store various types of data to support operations at device 400. Examples of such data include instructions for any application or method operating on the apparatus 400, contact data, phonebook data, messages, pictures, videos, and the like. The memory 404 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power component 406 provides power to the various components of the device 400. The power components 406 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the apparatus 400.

The multimedia component 408 includes a screen between the device 400 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 408 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the device 400 is in an operational mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 410 is configured to output and/or input audio signals. For example, the audio component 410 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 400 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 404 or transmitted via the communication component 416. In some embodiments, audio component 410 further includes a speaker for outputting audio signals.

The I/O interface 412 provides an interface between the processing component 402 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 414 includes one or more sensors for providing status assessment of various aspects of the apparatus 400. For example, the sensor assembly 414 may detect the on/off state of the device 400, the relative positioning of the components, such as the display and keypad of the apparatus 400, the sensor assembly 414 may also detect the change in position of the apparatus 400 or one component of the apparatus 400, the presence or absence of user contact with the apparatus 400, the orientation or acceleration/deceleration of the apparatus 400, and the change in temperature of the apparatus 400. The sensor assembly 414 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 414 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 416 is configured to facilitate communication between the apparatus 200 and other devices in a wired or wireless manner. The apparatus 400 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 416 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 400 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer-readable storage medium is also provided, such as memory 404, including instructions executable by processor 420 of apparatus 400 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

It is understood that the term "plurality" in this disclosure means two or more, and other adjectives are similar thereto. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It is further understood that the terms "first," "second," and the like are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the expressions "first", "second", etc. may be used entirely interchangeably. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It will be further understood that although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method of packet data network connection, for use with a user equipment, the method comprising:

responding to a PDN connection request of a packet data network which is required to be sent in the process of tracking area updating TAU of the user equipment;

determining a mobility management EMM status;

if the EMM state is a TAU initiating state, starting a delay timer, and sending the PDN connection request after the delay timer is overtime, wherein the duration of the delay timer is determined based on the maximum duration executed by the TAU process;

and if the EMM state is determined to enter an EMM registration state, sending the PDN connection request.

2. The packet data network connection method of claim 1, wherein determining that the EMM state enters an EMM registration state comprises:

3. A packet data network connection apparatus for use with a user equipment, the apparatus comprising:

a processing unit, configured to determine that the ue needs to send a PDN connection request of a packet data network in a tracking area update TAU process; determining a mobility management EMM status;

a sending unit, configured to respond to a need to send a PDN connection request of a packet data network in a tracking area update TAU process of the user equipment, if the EMM state is a TAU start state, start a delay timer, and send the PDN connection request after the delay timer expires; delay sending the PDN connection request; the duration of the delay timer is determined based on the maximum duration of the TAU process; and if the EMM state is determined to enter an EMM registration state, sending the PDN connection request.

4. A packet data network connection according to claim 3, wherein the processing unit determines that the EMM status enters an EMM registration status by:

5. A packet data network connection apparatus, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to: a packet data network connection method as claimed in any one of claims 1 to 2.

6. A non-transitory computer readable storage medium, which when executed by a processor of a mobile terminal, causes the mobile terminal to perform the packet data network connection method of any of claims 1 to 2.