CN112770412B - Packet data network PDN activation method and device thereof - Google Patents

Packet data network PDN activation method and device thereof Download PDF

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Publication number
CN112770412B
CN112770412B CN202011599997.9A CN202011599997A CN112770412B CN 112770412 B CN112770412 B CN 112770412B CN 202011599997 A CN202011599997 A CN 202011599997A CN 112770412 B CN112770412 B CN 112770412B
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pdn
request message
timer
sent
activation
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CN112770412A (en
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侯德智
何兰
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Unisoc Chongqing Technology Co Ltd
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Unisoc Chongqing Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The application discloses a Packet Data Network (PDN) activation method and a device thereof. The method comprises the following steps: sending a PDN activation request message to network equipment; if the PDN activation request message is successfully sent, starting a first timer; before the first timer is overtime, if a PDN activation response message from the network equipment is not received, a PDN activation request message is sent to the network equipment again; wherein the duration of the first timer is less than the duration of the T3482 timer. By the embodiment of the application, the time delay of activating the PDN can be shortened for the terminal equipment.

Description

Packet data network PDN activation method and device thereof
Technical Field
The present application relates to the field of communications technologies, and in particular, to a packet data network PDN activation method and an apparatus thereof.
Background
A Long Term Evolution (LTE) network of the universal mobile telecommunications technology has only a Packet Switch (PS) domain and no Circuit Switch (CS) domain. Therefore, a terminal Equipment (UE) must be connected to at least one Packet Data Network (PDN) to perform data communication.
Due to the network deployment of an operator, the signal quality of the network environment where many UEs are actually located is poor, so that the time delay of PDN activation of the terminal device is long.
Disclosure of Invention
The application discloses a method and a device for processing activation failure of a packet data network, which are beneficial to shortening time delay of PDN activation.
In a first aspect, the present application provides a PDN activation method, including: sending a PDN activation request message to network equipment; if the PDN activation request message is successfully sent, starting a first timer; before the first timer is overtime, if a PDN activation response message from the network equipment is not received, a PDN activation request message is sent to the network equipment again; wherein the duration of the first timer is less than the duration of the T3482 timer.
In one embodiment, the PDN activation method further comprises: if the PDN activation request message fails to be sent, executing a Radio Resource Control (RRC) connection reestablishment process; and when the RRC connection reestablishment is successful, the PDN activation request message is sent to the network equipment again.
In one embodiment, the method comprises: if receiving a confirmation message aiming at the PDN activation request message from the network equipment, determining that the PDN activation request message is successfully sent; and if the confirmation message is not received, determining that the PDN activation request message fails to be sent.
In one embodiment, the PDN activation method further comprises: sending a PDN deactivation request message to network equipment; if the PDN deactivation request message is successfully sent, starting a second timer; before the second timer is overtime, if the PDN deactivation response message from the network equipment is not received, the PDN deactivation request message is sent to the network equipment again; wherein the duration of the second timer is less than the duration of the T3492 timer.
In one embodiment, the PDN activation method further comprises: if the PDN deactivation request message fails to be sent, executing an RRC connection reestablishment process; and when the RRC connection reestablishment is successful, the PDN deactivation request message is sent to the network equipment again.
In one embodiment, the method comprises: if receiving a confirmation message aiming at the PDN deactivation request message from the network equipment, determining that the PDN deactivation request message is successfully sent; and if the confirmation message is not received, determining that the PDN deactivation request message fails to be sent.
In a second aspect, the present application provides a packet data network PDN activation apparatus, including:
a sending unit, configured to send a PDN activation request message to a network device;
the processing unit is used for starting a first timer if the PDN activation request message is successfully sent;
the sending unit is further configured to send the PDN activation request message to the network device again if the PDN activation response message from the network device is not received before the first timer expires; wherein the duration of the first timer is less than the duration of the T3482 timer.
In an embodiment, the processing unit is further configured to execute an RRC connection reestablishment procedure if the PDN activation request message is unsuccessfully sent; and the sending unit is further configured to resend the PDN activation request message to the network device when the RRC connection reestablishment is successful.
In an embodiment, the processing unit is further configured to determine that the PDN activation request message is successfully sent if a confirmation message for the PDN activation request message is received from the network device; and if the confirmation message is not received, determining that the PDN activation request message fails to be sent.
In an embodiment, the sending unit is further configured to send a PDN deactivation request message to the network device; the processing unit is further configured to start a second timer if the PDN deactivation request message is successfully sent; the sending unit is further configured to send the PDN deactivation request message to the network device again if the PDN deactivation response message from the network device is not received before the second timer expires; wherein the duration of the second timer is less than the duration of the T3492 timer.
In an embodiment, the processing unit is further configured to execute an RRC connection reestablishment procedure if the PDN deactivation request message is unsuccessfully sent; and the sending unit is further configured to resend the PDN deactivation request message to the network device when the RRC connection reestablishment is successful.
In an embodiment, the processing unit is further configured to determine that the PDN deactivation request message is successfully sent if an acknowledgement message for the PDN deactivation request message is received from the network device; and if the confirmation message is not received, determining that the PDN deactivation request message is failed to be sent.
In a third aspect, the present application provides a PDN activation apparatus, including a processor, a memory, and a transceiver, where the processor, the memory, and the transceiver are connected to each other, where the memory is used to store a computer program, and the computer program includes program instructions, and the processor is configured to invoke the program instructions to execute the PDN activation method according to the first aspect.
In a fourth aspect, the present application provides a computer-readable storage medium having stored thereon one or more instructions adapted to be loaded by a processor and to perform the PDN activation method of the first aspect described above.
In a fifth aspect, the present application provides a chip, which includes a processor and a data interface, where the processor reads instructions stored in a memory through the data interface to execute the PDN activation method of the first aspect.
In a sixth aspect, the present application provides a chip module including the chip as described in the fifth aspect.
In the application, terminal equipment sends a PDN activation request message to network equipment; if the PDN activation request message is successfully sent, starting a first timer; before the first timer is overtime, if a PDN activation response message from the network equipment is not received, a PDN activation request message is sent to the network equipment again; wherein the duration of the first timer is less than the duration of the T3482 timer. By implementing the embodiment of the application, the terminal equipment can resend the PDN activation request message as soon as possible when the terminal equipment does not receive the PDN activation response message before the first timer is overtime, thereby being beneficial to shortening the time delay of activating the PDN.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is an architecture diagram of a communication system according to an embodiment of the present application;
fig. 2 is a flowchart of a PDN activation method according to an embodiment of the present application;
fig. 3 is a flowchart of another PDN activation method according to an embodiment of the present application;
fig. 4 is a flowchart of a PDN deactivation method according to an embodiment of the present application;
fig. 5 is a flowchart of another PDN deactivation method according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a PDN activation apparatus according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of another PDN activation device according to an embodiment of the present application.
Detailed Description
For ease of understanding, terms referred to in the present application will be first introduced.
1. Packet Data Network (PDN) connection
PDN refers to a data network (as opposed to LTE operators) outside of the Evolved Packet System (EPS), such as the internet, enterprise private network, etc. The purpose of the PDN connection is to establish a default bearer between the UE and a PDN Gateway (PGW), which will remain connected until the UE detaches the LTE network. A default bearer may be understood as a bearer that best attempts to provide IP connectivity, is established with the establishment of a PDN connection, and is destroyed with the disconnection of the PDN connection, providing a permanently online IP transport service for the UE.
CS Domain and PS Domain
The CS domain is circuit switching, resources are reserved before communication, different users monopolize the resources allocated to the users respectively, and statistical multiplexing is not carried out. The CS domain is primarily responsible for voice traffic. The PS domain is packet switching, and different users can share the same resource and are statistically multiplexed. The PS domain is used for data services, i.e., internet access services, and accesses the internet.
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 1 is an architecture diagram of a communication system according to an embodiment of the present application. The communication system shown in fig. 1 includes a terminal device 101 and a network device 102. The terminal device 101 is an entity, such as a mobile phone, on the user side for receiving or transmitting signals. A terminal device may also be referred to as a terminal (terminal), user equipment, Mobile Station (MS), Mobile Terminal (MT), etc. The terminal device may be a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self-driving (self-driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in a smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in a smart city (smart city), a wireless terminal in a smart home (smart home), a terminal device for supporting enhanced Machine-Type communication (eMTC), narrow-band internet of things (NB-IoT), and/or 5th generation mobile communication technology (5G), and the like. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal device.
The network device 102 is an entity on the network side for transmitting or receiving signals. For example, the network device may be an evolved node b (eNB), a transmission point (TRP), a next generation base station (gNB) in a New Radio (NR) system of 5G, a base station in another future mobile communication system, or an access node in a wireless fidelity (WiFi) system. The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices.
It should be noted that the technical solution of the embodiment of the present application may be applied to the following communication systems: LTE, eMTC, NB-IoT, 5G mobile communication. Optionally, the method of the embodiment of the present application may also be applied to various future communication systems, such as a 6G system or other communication networks.
The terminal device 101 is configured to send a PDN activation request message to the network device 102; the network device 102 is configured to receive the PDN activation request message from the terminal device 101, and send an acknowledgement message for the PDN activation request message. If the terminal device 101 receives the acknowledgement message, it is determined that the PDN activation request message is successfully sent, and then a first timer is started. The network device 102 is also configured to send a PDN activation response message. And if the PDN activation response message from the network device 102 is not received before the first timer expires, resending the PDN activation request message to the network device 102.
By the above PDN activation method, before the first timer times out, the terminal device 101 does not receive a PDN activation response message from the network device 102, and then re-sends a PDN activation request message to the network device 102, so that the terminal device tries to initiate a PDN connection procedure again, which is beneficial to shortening the time delay for activating the PDN.
A packet data network PDN activation method provided by the present application is described in detail below.
Referring to fig. 2, fig. 2 is a flowchart of a PDN activation method according to an embodiment of the present disclosure. The processing method may be implemented by the terminal device 101 shown in fig. 1, or may be implemented by a chip in the terminal device 101; as shown in fig. 2, the PDN activation method includes, but is not limited to, the following steps S201 to S203, and the method shown in fig. 2 is described by taking the application to the terminal device 101 as an example.
S201, the terminal equipment sends a PDN activation request message to the network equipment.
When the terminal device needs to access the service, a PDN activation request message may be sent to the network device. The terminal equipment sends a PDN activation request message to the network equipment to indicate that the terminal equipment initiates a PDN connection process.
It should be noted that, according to the 24.301 protocol, after the terminal device sends the PDN activation request message to the network device, the T3482 timer is started.
S202, if the PDN activation request message is successfully sent, the terminal equipment starts a first timer.
The terminal equipment sends a PDN activation request message, and correspondingly, the network equipment receives the PDN activation request message and sends a confirmation message aiming at the PDN activation request message. Therefore, if the terminal device receives an acknowledgement message for the PDN activation request from the network device, the terminal device may determine that the PDN activation request message is successfully sent.
After the PDN activation request message is successfully sent, the network device sends a PDN activation response message to the terminal device, and accordingly, the terminal device receives the PDN activation response message from the network device. And the terminal equipment receives the PDN activation response message and indicates that the PDN activation is successful.
The duration of the first timer may be determined according to the network environment in which the terminal device is located. Optionally, if the signal quality of the network environment where the terminal device is located is poor, the duration of the first timer may be relatively long, and if the signal quality of the network environment where the terminal device is located is good, the duration of the first timer may be relatively short. Optionally, the duration of the first timer may be greater than 1 second.
S203, before the first timer is overtime, the terminal equipment does not receive a PDN activation response message from the network equipment, and then sends a PDN activation request message to the network equipment again; wherein the duration of the first timer is less than the duration of the T3482 timer.
In one implementation, in the case that the first timer times out, the terminal device may close the T3482 timer, so as to avoid a situation that the terminal device sends the PDN activation request message again when the T3482 timer times out after the PDN activation is completed.
The reason why the terminal device does not receive the PDN activation response message from the network device may be a physical layer decoding error of the terminal device, a network condition (for example, network congestion causes packet loss), or a failure of the network device to send the PDN activation response message. Before the first timer times out, the terminal device does not receive the PDN activation response message from the network device, and it may be considered that the terminal device does not receive the PDN activation response message due to the above reason.
In the prior art, the terminal device waits for the timeout of the T3482 timer if it does not receive the PDN activation response message. And if the timeout times of the T3482 timer do not exceed 5 times, the terminal equipment sends the PDN activation request message to the network equipment again. And if the PDN activation is not successful after the T3482 timer is overtime for 5 times, ending the PDN activation process. Under the condition that the signal quality of the network environment where the terminal equipment is located is poor, if the terminal equipment does not receive the PDN activation response message, the PDN activation failure is caused, the time delay for activating the PDN by using the prior art may be long, and the user experience is seriously affected. Compared with the prior art, the duration of the first timer is less than that of the T3482 timer, and before the first timer is overtime, the terminal equipment does not receive the PDN activation response message, and then the PDN activation request message is retransmitted, so that the terminal equipment can try to initiate a PDN connection process as soon as possible, and the time delay for activating the PDN is favorably shortened.
Referring to fig. 3, fig. 3 is a flowchart of another PDN activation method according to an embodiment of the present application. The PDN activation method shown in fig. 3 may be implemented by the terminal device 101 shown in fig. 1, or may be implemented by a chip in the terminal device 101; as shown in fig. 3, the PDN activation method includes, but is not limited to, the following steps S301 to S305, and the method shown in fig. 3 is described by taking the application to the terminal device 101 as an example.
S301, the terminal equipment sends a PDN activation request message to the network equipment.
Optionally, after the terminal device sends the PDN activation request message to the network device, it may be determined whether the PDN activation request message is sent successfully. If the transmission is successful, executing step S302; if the transmission fails, step S304 is executed.
S302, if the PDN activation request message is successfully sent, the terminal equipment starts a first timer.
S303, before the first timer is overtime, the terminal equipment does not receive a PDN activation response message from the network equipment, and then the terminal equipment sends a PDN activation request message to the network equipment again; wherein the duration of the first timer is less than the duration of the T3482 timer.
It should be noted that, the execution processes of steps S301 to S303 may refer to the specific descriptions in steps S201 to S203 in fig. 2, and are not described herein again.
S304, if the PDN activation request message fails to be sent, the terminal equipment executes an RRC connection reestablishment process.
The terminal device may determine that the PDN activation request message transmission fails if the terminal device does not receive the acknowledgement message for the PDN activation request message. The reason for the failure of sending the PDN activation request message by the terminal device may be that the physical layer of the terminal device fails to send the PDN activation request message, or that the data link layer of the terminal device does not receive an acknowledgement message for the PDN activation request message.
S305, when the RRC connection is reestablished successfully, the terminal equipment sends a PDN activation request message to the network equipment again.
If the RRC connection reestablishment is successful, it may be considered that the terminal device may successfully send the PDN activation request message, and at this time, the terminal device may send the PDN activation request message to the network device again.
Optionally, when the RRC connection reestablishment fails, it may be considered that the terminal device cannot resend the PDN activation request message. Or, the network camping procedure may be triggered when the RRC connection reestablishment fails, and the terminal device may resend the PDN activation request message when the network camping is successful. That is, the terminal device may retransmit the PDN activation request message to the network device when the RRC connection reestablishment is successful or the network camping is successful.
In the prior art, when RRC connection is successfully reestablished, the terminal device may resend the PDN activation request message after waiting for the timeout of the T3482 timer. The time delay for activating PDN is relatively long with the prior art technique due to the need to wait for the T3482 timer to time out. However, in the embodiment of the present application, when the RRC connection reestablishment is successful, the terminal device may immediately resend the PDN activation request message, that is, it is not necessary to wait for the T3482 timer to timeout, which is beneficial to shortening the PDN activation delay.
In one implementation, after the PDN activation is successful, the terminal device may send a PDN deactivation request message to the network device to disconnect the PDN connection. For the relevant content of PDN activation, reference may be made to specific descriptions in corresponding embodiments of fig. 2 to fig. 3, which are not described herein again. Referring to fig. 4, fig. 4 is a flowchart of a PDN deactivation method according to an embodiment of the present disclosure. The PDN deactivation method shown in fig. 4 may be implemented by the terminal device 101 shown in fig. 1, or may be implemented by a chip in the terminal device 101; as shown in fig. 4, the PDN deactivation method includes, but is not limited to, the following steps S401 to S403, and the method shown in fig. 4 is described by taking the application to the terminal device 101 as an example.
S401, the terminal equipment sends a PDN deactivation request message to the network equipment.
It should be noted that, after the terminal device sends the PDN deactivation request message to the network device, the T3492 timer is started.
S402, if the PDN deactivation request message is successfully sent, the terminal equipment starts a second timer.
S403, before the second timer is overtime, the terminal equipment does not receive a PDN deactivation response message from the network equipment, and then sends a PDN deactivation request message to the network equipment again; wherein the duration of the second timer is less than the duration of the T3492 timer.
In an implementation manner, the terminal device may close the T3492 timer when the second timer expires, so as to avoid a situation that the terminal device sends the PDN deactivation request message again when the T3492 timer expires after the PDN deactivation is completed.
The duration of the second timer may be determined according to the network environment where the terminal device is located. Optionally, if the signal quality of the network environment where the terminal device is located is poor, the duration of the second timer may be relatively long, and if the signal quality of the network environment where the terminal device is located is good, the duration of the second timer may be relatively short. Optionally, the duration of the second timer may be greater than 1 second.
It should be noted that, the execution process of steps S401 to S403 may refer to the specific description in steps S201 to S203 in fig. 2, except that: fig. 2 corresponds to an embodiment in which a terminal device sends a PDN activation request message to a network device, and fig. 4 corresponds to an embodiment in which a terminal device sends a PDN deactivation request message to a network device; fig. 2 corresponds to an embodiment in which a network device sends a PDN activation response message, and fig. 4 corresponds to an embodiment in which a network device sends a PDN deactivation response message; in addition, in the embodiment corresponding to fig. 2, if the PDN activation request message is successfully sent, the terminal device starts a first timer, whereas in the embodiment corresponding to fig. 4, if the PDN deactivation request message is successfully sent, the terminal device starts a second timer.
In the prior art, if the terminal device does not receive the PDN deactivation response message, it waits for the timeout of the T3492 timer. And if the timeout times of the T3492 timer do not exceed 5 times, the terminal equipment sends the PDN deactivation request message to the network equipment again. And if the PDN deactivation is not successful after the T3492 timer is overtime for 5 times, ending the PDN deactivation process. Under the condition that the signal quality of the network environment where the terminal equipment is located is poor, if the terminal equipment does not receive the PDN deactivation response message, the PDN deactivation is failed, the time delay for activating the PDN by adopting the prior art may be very long, and the user experience is seriously influenced. Compared with the prior art, the duration of the second timer is less than that of the T3492 timer. In the above embodiment, if the terminal device does not receive the PDN deactivation response message before the second timer expires, the terminal device resends the PDN deactivation request message, so that the terminal device can try to initiate a PDN deactivation procedure as soon as possible, which is beneficial to shortening PDN deactivation delay.
Referring to fig. 5, fig. 5 is a flowchart of another PDN deactivation method according to an embodiment of the present application. The PDN deactivation method shown in fig. 5 may be implemented by the terminal device 101 shown in fig. 1, or may be implemented by a chip in the terminal device 101; as shown in fig. 5, the PDN deactivation method includes, but is not limited to, the following steps S501 to S505, and the method shown in fig. 5 is described by taking the application to the terminal device 101 as an example.
S501, the terminal device sends a PDN deactivation request message to the network device.
Optionally, after the terminal device sends the PDN deactivation request message to the network device, it may be determined whether the PDN deactivation request message is sent successfully. If the transmission is successful, executing step S502; if the transmission fails, step S504 is executed.
And S502, if the PDN deactivation request message is successfully sent, the terminal equipment starts a second timer.
S503, before the second timer is overtime, the terminal equipment does not receive a PDN deactivation response message from the network equipment, and then sends a PDN deactivation request message to the network equipment again; wherein the duration of the second timer is less than the duration of the T3492 timer.
It should be noted that, the execution process of steps S501 to S503 may refer to the specific description in steps S401 to S403 in fig. 4, and is not described herein again.
S504, if the PDN deactivation request message is failed to be sent, an RRC connection reestablishment process is executed.
And S505, when the RRC connection is successfully reestablished, the terminal equipment sends a PDN deactivation request message to the network equipment again.
If the RRC connection reestablishment is successful, it may be considered that the terminal device may successfully send the PDN deactivation request message, and at this time, the terminal device may send the PDN deactivation request message to the network device again.
Optionally, when the RRC connection reestablishment fails, it may be considered that the terminal device cannot resend the PDN deactivation request message. Or, the network camping procedure may be triggered when the RRC connection reestablishment fails, and the terminal device may resend the PDN deactivation request message when the network camping is successful. That is, the terminal device may resend the PDN deactivation request message to the network device when the RRC connection reestablishment is successful or the network camping is successful.
It should be noted that, the execution process of steps S504 to S505 can refer to the specific description in steps S304 to S305 in fig. 3, and the difference is that: fig. 3 corresponds to an embodiment in which a terminal device sends a PDN activation request message, and fig. 5 corresponds to an embodiment in which a terminal device sends a PDN deactivation request message.
In the prior art, when RRC connection reestablishment is successful, the terminal device may resend the PDN deactivation request message only after waiting for the timeout of the T3492 timer. In the above embodiment, when the RRC connection reestablishment is successful, the terminal device may immediately resend the PDN deactivation request message, that is, it is not necessary to wait for the timeout of the T3492 timer, thereby being beneficial to shortening the PDN deactivation delay.
The method of the embodiments of the present application is described in detail above, and in order to better implement the above-described solution of the embodiments of the present application, the following provides a device of the embodiments of the present application.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a PDN activation apparatus according to an embodiment of the present disclosure, and the processing apparatus shown in fig. 6 may be configured to perform some or all of the functions in the method embodiments described in fig. 2 to fig. 5. The detailed description of each unit is as follows:
a sending unit 601, configured to send a PDN activation request message to a network device;
a processing unit 602, configured to start a first timer if the PDN activation request message is successfully sent;
a sending unit 601, further configured to send a PDN activation request message to the network device again before the first timer expires and a PDN activation response message from the network device is not received; wherein the duration of the first timer is less than the duration of the T3482 timer.
In an embodiment, the processing unit 602 is further configured to execute an RRC connection reestablishment procedure if the PDN activation request message is unsuccessfully sent; the sending unit 601 is further configured to resend the PDN activation request message to the network device when the RRC connection reestablishment is successful.
In one embodiment, if a confirmation message for a PDN activation request message is received from a network device, it is determined that the PDN activation request message is successfully sent; and if the confirmation message is not received, determining that the PDN activation request message fails to be sent.
In an embodiment, the sending unit 601 is further configured to send a PDN deactivation request message to the network device; the processing unit 602 is further configured to start a second timer if the PDN deactivation request message is successfully sent; a sending unit 601, further configured to send a PDN deactivation request message to the network device again before the second timer expires and a PDN deactivation response message from the network device is not received; wherein the duration of the second timer is less than the duration of the T3492 timer.
In an embodiment, the processing unit 602 is further configured to execute an RRC connection reestablishment procedure if the PDN deactivation request message is unsuccessfully sent; the sending unit 601 is further configured to resend the PDN deactivation request message to the network device when the RRC connection reestablishment is successful.
In one embodiment, if an acknowledgement message for a PDN deactivation request message is received from a network device, it is determined that the PDN deactivation request message is successfully sent; and if the confirmation message is not received, determining that the PDN deactivation request message fails to be sent.
The embodiments of the present invention and the embodiments of the methods shown in fig. 2 to 5 are based on the same concept, and the technical effects thereof are also the same, and for the specific principle, reference is made to the description of the embodiments shown in fig. 2 to 5, which is not repeated herein.
According to an embodiment of the present application, each unit in the PDN activation device shown in fig. 6 may be respectively or entirely combined into one or several other units to form one or several other units, or some unit(s) therein may be further split into multiple units with smaller functions to form the same operation, without affecting implementation of technical effects of the embodiments of the present application. The units are divided based on logic functions, and in practical application, the functions of one unit can be realized by a plurality of units, or the functions of a plurality of units can be realized by one unit. In other embodiments of the present application, the processing device may also include other units, and in practical applications, the functions may also be implemented by being assisted by other units, and may be implemented by cooperation of a plurality of units.
According to the PDN activation device, before the first timer is overtime, the terminal equipment does not receive the PDN activation response message, and then the PDN activation request message is sent again, so that the terminal equipment can try to initiate a PDN connection process as soon as possible, and the PDN activation device is beneficial to shortening the PDN activation time delay. When the RRC connection reestablishment is successful, the terminal device may immediately resend the PDN activation request message, that is, it is not necessary to wait for the T3482 timer to time out, thereby being beneficial to shortening the time delay for activating the PDN.
Based on the description of the above method embodiment and apparatus embodiment, the embodiment of the present application further provides a PDN activation apparatus. Referring to fig. 7, the processing apparatus at least includes a transceiver 701, a processor 702, a memory 703 and a first timer 704. The transceiver 701, the processor 702, the memory 703 and the first timer 704 may be connected by a bus 705 or other means. The bus lines are shown in fig. 7 by thick lines, and the connection manner between other components is merely illustrative and not limited thereto. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 7, but that does not indicate only one bus or one type of bus.
In the present embodiment, the transceiver 701 communicates with other devices by transmitting and receiving signals. The processor 702 transceives data using the transceiver 701 and is configured to implement the methods of the above-described method embodiments. The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, and may be an electrical, mechanical or other form for information interaction between the devices, units or modules. The specific connection medium among the transceiver 701, the processor 702, the memory 703 and the first timer 704 is not limited in this embodiment.
Memory 703 may include both read-only memory and random-access memory, and provides instructions and data to processor 702. A portion of the memory 703 may also include non-volatile random access memory.
The Processor 702 may be a Central Processing Unit (CPU), and the Processor 702 may also be other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general-purpose processor may be a microprocessor, but in the alternative, the processor 702 may be any conventional processor or the like. Wherein:
a memory 703 for storing program instructions.
A processor 702 for invoking program instructions stored in memory 703 for:
invoking a transceiver 701 to send a PDN activation request message to a network device;
if the PDN activation request message is successfully sent, starting a first timer;
before the first timer is overtime, if a PDN activation response message from the network equipment is not received, a PDN activation request message is sent to the network equipment again; wherein the duration of the first timer is less than the duration of the T3248 timer.
In an embodiment, the processor 702 is further configured to execute an RRC connection reestablishment procedure if the PDN activation request message is unsuccessfully sent; the transceiver 701 is further configured to resend the PDN activation request message to the network device if the RRC connection reestablishment is successful.
In an embodiment, the processor 702 is further configured to determine that the PDN activation request message is successfully sent if an acknowledgement message for the PDN activation request message is received from the network device; and if the confirmation message is not received, determining that the PDN activation request message fails to be sent.
In an embodiment, the processing device may further include a second timer 706. The transceiver 701 is further configured to send a PDN deactivation request message to the network device; the processor 702 is further configured to start a second timer if the PDN deactivation request message is successfully sent; the transceiver 701 is further configured to, before the second timer expires, receive no PDN deactivation response message from the network device, resend the PDN deactivation request message to the network device; wherein the duration of the second timer is less than the duration of the T3492 timer.
In an embodiment, the processor 702 is further configured to execute an RRC connection reestablishment procedure if the PDN deactivation request message is unsuccessfully sent; the transceiver 701 is further configured to resend the PDN deactivation request message to the network device when the RRC connection reestablishment is successful.
In an embodiment, the processor 702 is further configured to determine that the PDN deactivation request message is successfully sent if an acknowledgement message for the PDN deactivation request message is received from the network device; and if the confirmation message is not received, determining that the PDN deactivation request message fails to be sent.
According to another embodiment of the present application, the PDN activation apparatus shown in fig. 6-7 may be constructed by running a computer program (including program codes) capable of executing the steps involved in the corresponding method shown in fig. 2-5 on a general-purpose computing device, such as a computer, including a Central Processing Unit (CPU), a random access storage medium (RAM), a read-only storage medium (ROM), and the like, and a storage element, and implementing the PDN activation method of the embodiments of the present application. The computer program may be recorded on, for example, a computer-readable recording medium, and loaded and executed in the above-described PDN activation apparatus via the computer-readable recording medium.
Based on the same inventive concept, the principle and the beneficial effect of the solution to the problem of the PDN activation device provided in the embodiment of the present application are similar to the principle and the beneficial effect of the solution to the problem of the PDN activation method in the embodiment of the present application, and for brevity, the principle and the beneficial effect of the implementation of the method may be referred to, and are not described herein again.
The embodiment of the present application further provides a computer-readable storage medium, where one or more instructions are stored in the computer-readable storage medium, and the one or more instructions are adapted to be loaded by a processor and to execute the PDN activation method in the foregoing method embodiment.
Embodiments of the present application also provide a computer program product containing instructions, which when run on a computer, cause the computer to execute the PDN activation method of the above method embodiment.
The embodiment of the present application further provides a chip, where the chip may be applied to a terminal device, and the chip includes a processor and a data interface, where the processor reads an instruction stored in a memory through the data interface to execute the relevant steps of the terminal device in the embodiment corresponding to fig. 2 to 5, which may specifically refer to implementation manners provided in the above steps, and details are not described here again.
In one embodiment, the chip includes at least one processor, at least one first memory, and at least one second memory; the at least one first memory and the at least one processor are interconnected through a line, and instructions are stored in the first memory; the at least one second memory and the at least one processor are interconnected through a line, and the second memory stores data to be stored in the PDN activation method.
The embodiment of the application further provides a chip module, which can be applied to the terminal device, including the chip which can be applied to the terminal device.
Each module/unit included in each apparatus and product described in the above embodiments may be a software module/unit, or may also be a hardware module/unit, or may also be a part of a software module/unit and a part of a hardware module/unit. For example, for each device or product applied to or integrated into a chip, each module/unit included in the device or product may be implemented by hardware such as a circuit, or at least a part of the module/unit may be implemented by a software program running on a processor integrated within the chip, and the rest (if any) part of the module/unit may be implemented by hardware such as a circuit; for each device and product applied to or integrated with the chip module, each module/unit included in the device and product may be implemented by hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least part of the modules/units may be implemented by a software program running on a processor integrated inside the chip module, and the rest (if any) part of the modules/units may be implemented by hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (if any) part of the modules/units may be implemented by using hardware such as a circuit.
It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs. The modules in the device can be merged, divided and deleted according to actual needs.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, which may include: flash disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (11)

1. A method for Packet Data Network (PDN) activation, the method comprising:
sending a PDN activation request message to network equipment;
if the PDN activation request message is successfully sent, starting a first timer;
before the first timer is overtime, if a PDN activation response message from the network equipment is not received, a PDN activation request message is sent to the network equipment again; wherein the duration of the first timer is less than the duration of a T3482 timer;
after the PDN activation is successful, a PDN deactivation request message is sent to the network equipment;
if the PDN deactivation request message is successfully sent, starting a second timer;
before the second timer is overtime, if a PDN deactivation response message from the network equipment is not received, a PDN deactivation request message is sent to the network equipment again; wherein the duration of the second timer is less than the duration of the T3492 timer.
2. The method of claim 1, further comprising:
if the PDN activation request message is failed to be sent, executing a Radio Resource Control (RRC) connection reestablishment process;
and when the RRC connection reestablishment is successful, the PDN activation request message is sent to the network equipment again.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
if receiving a confirmation message aiming at the PDN activation request message from the network equipment, determining that the PDN activation request message is successfully sent;
and if the confirmation message is not received, determining that the PDN activation request message fails to be sent.
4. The method of claim 1, further comprising:
if the PDN deactivation request message fails to be sent, executing an RRC connection reestablishment process;
and when the RRC connection is successfully reestablished, the PDN deactivation request message is sent to the network equipment again.
5. The method of claim 1, further comprising:
if receiving a confirmation message aiming at the PDN deactivation request message from the network equipment, determining that the PDN deactivation request message is successfully sent;
and if the confirmation message is not received, determining that the PDN deactivation request message fails to be sent.
6. A packet data network, PDN, activation apparatus, comprising:
a sending unit, configured to send a PDN activation request message to a network device;
a processing unit, configured to start a first timer if the PDN activation request message is successfully sent;
the sending unit is further configured to send a PDN activation request message to the network device again if the PDN activation response message from the network device is not received before the first timer expires; wherein the duration of the first timer is less than the duration of a T3482 timer;
the sending unit is further configured to send a PDN deactivation request message to the network device;
the processing unit is further configured to start a second timer if the PDN deactivation request message is successfully sent;
the sending unit is further configured to send a PDN deactivation request message to the network device again if the PDN deactivation response message from the network device is not received before the second timer expires; wherein the duration of the second timer is less than the duration of the T3492 timer.
7. The apparatus of claim 6,
the processing unit is further configured to execute an RRC connection reestablishment procedure if the PDN activation request message is unsuccessfully sent;
the sending unit is further configured to resend the PDN activation request message to the network device when the RRC connection reestablishment is successful.
8. A Packet Data Network (PDN) activation device, comprising a processor, a memory and a transceiver, wherein the processor, the memory and the transceiver are connected with each other, wherein the memory is used for storing a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute the method according to any one of claims 1-5.
9. A computer-readable storage medium having stored thereon one or more instructions adapted to be loaded by a processor and to perform the method of any of claims 1-5.
10. A chip, characterized in that the chip comprises a processor and a data interface, the processor reads instructions stored on a memory through the data interface to execute the method according to any one of claims 1 to 5.
11. A chip module, characterized in that it comprises a chip as claimed in claim 10.
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