CN111065073A - EPC bearer establishment method, mobile management entity and Internet of things terminal - Google Patents

EPC bearer establishment method, mobile management entity and Internet of things terminal Download PDF

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Publication number
CN111065073A
CN111065073A CN201911285732.9A CN201911285732A CN111065073A CN 111065073 A CN111065073 A CN 111065073A CN 201911285732 A CN201911285732 A CN 201911285732A CN 111065073 A CN111065073 A CN 111065073A
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China
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terminal
internet
things
tracking area
context information
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CN201911285732.9A
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CN111065073B (en
Inventor
张余
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides an EPC bearer establishment method, which comprises the following steps: receiving attachment information sent by the terminal of the Internet of things, and judging whether the terminal of the Internet of things is a terminal of the Internet of things with a fixed position or not according to the type information of the terminal of the Internet of things contained in the attachment information; when the thing networking terminal is judged to be a fixed-position thing networking terminal, the service gateway and the PDN gateway are controlled to establish and store the bearing context information of the thing networking terminal, and meanwhile, an instruction for closing the periodic tracking area updating switch of the thing networking terminal is sent to the thing networking terminal, so that the thing networking terminal automatically closes the periodic tracking area updating switch of the thing networking terminal after receiving the instruction for closing the periodic tracking area updating switch of the thing networking terminal; and after the active duration contained in the attachment message, controlling the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things. The invention also provides a mobile management entity and an Internet of things terminal; the invention relates to the technical field of communication.

Description

EPC bearer establishment method, mobile management entity and Internet of things terminal
Technical Field
The invention relates to the technical field of communication, in particular to an EPC bearer establishment method, a mobile management entity and an Internet of things terminal.
Background
The introduction of the NB-IoT (narrowband internet of things) technology brings great improvement to the LTE network, that is, the NB-IoT terminal (internet of things terminal) can operate in a power saving mode, and the terminal only maintains a registration state in the power saving mode without reattaching or reestablishing a PDN connection, thereby reducing power consumption and prolonging battery life; in the power saving mode, the terminal is provided with an active duration within which the terminal can perform normal communication activities and a power saving duration within which the terminal only maintains a registration state without being activated.
In practical application, an EPS bearer is established by a terminal in an attachment process, and bearer contexts of the terminal are always stored in an SGW (serving gateway) and a PGW (PDN gateway) until the terminal is attached, which is not significant for the terminal in a power saving mode, because the terminal does not communicate for a long time in power saving, and when a huge number of terminals are covered under one SGW, a large amount of terminal bearer context information stored in the SGW and the PGW undoubtedly occupies a large amount of memory resources of the SGW and the PGW, thereby causing the performance of the SGW and the PGW to be seriously affected.
Disclosure of Invention
The invention aims to solve at least one of technical problems in the prior art, and provides an EPC bearer establishment method, a mobile management entity and an Internet of things terminal, which are used for solving the problem that memory resources of an SGW and a PGW are excessively consumed by the EPC bearer establishment method in the prior art.
In order to solve the foregoing technical problem, in one aspect, the present invention provides an EPC bearer establishment method, including:
receiving attachment information sent by a terminal of the Internet of things, wherein the attachment information comprises: the type information of the Internet of things terminal and the power saving mode parameter comprise the active duration of the Internet of things terminal;
judging whether the terminal of the Internet of things is a terminal of the Internet of things with a fixed position or not according to the type information of the terminal of the Internet of things;
when the internet of things terminal is judged to be a fixed-position internet of things terminal, a control service gateway and a PDN gateway establish and store the bearing context information of the internet of things terminal, and simultaneously send an instruction for closing a self periodic tracking area updating switch to the internet of things terminal, so that the internet of things terminal automatically closes the self periodic tracking area updating switch after receiving the instruction for closing the self periodic tracking area updating switch;
and after the active duration, controlling the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things.
Preferably, the power saving mode parameter further includes a power saving duration of the internet of things terminal;
after the step of controlling the service gateway and the PDN gateway to delete the bearer context information of the terminal of the internet of things, the method further includes:
when the power saving duration of the terminal of the Internet of things is over, receiving a tracking area updating request sent by the terminal of the Internet of things;
after receiving the tracking area updating request, controlling the service gateway and the PDN gateway to establish and store the bearing context information of the terminal of the Internet of things;
and after the active duration, continuing to control the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things.
Preferably, after the controlling the serving gateway and the PDN gateway establishes and stores the bearer context information of the terminal of the internet of things, and before the controlling the serving gateway and the PDN gateway deletes the bearer context information of the terminal of the internet of things, the method further includes:
setting a timer; the timing duration of the timer is the active duration of the terminal of the Internet of things;
monitoring whether the timer finishes timing;
and when the timer is monitored to finish timing, executing the step of controlling the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things.
In another aspect, the present invention further provides an EPC bearer establishment method, including:
sending attachment information to a mobility management entity, wherein the attachment information comprises: the mobile management entity judges whether the terminal of the Internet of things is a terminal of the Internet of things with a fixed position or not according to the type information after receiving the attachment information, controls a service gateway and a PDN gateway to establish and store bearing context information of the terminal of the Internet of things after judging that the terminal of the Internet of things is the terminal of the Internet of things with the fixed position, and controls the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things after the active time;
receiving an instruction of closing a self periodic tracking area updating switch returned by the mobile management entity;
and closing the periodic tracking area updating switch according to the instruction for closing the periodic tracking area updating switch.
Preferably, the power saving mode parameter further includes a power saving duration of the power saving mode parameter; the method further comprises the following steps:
after receiving an instruction of closing a self periodic tracking area updating switch returned by the mobile management entity, starting a timer, wherein the timing duration of the timer is the sum of the active duration and the power saving duration;
monitoring whether the timer finishes timing in real time;
when the timer is monitored to finish timing, a tracking area updating request is sent to the mobile management entity, so that the mobile management entity controls the service gateway and the PDN gateway to establish and store the bearing context information of the Internet of things terminal after receiving the tracking area updating request.
In another aspect, the present invention also provides a mobility management entity, including:
the receiving unit is used for receiving attachment information sent by the terminal of the Internet of things, and the attachment information comprises: the type information of the Internet of things terminal and the power saving mode parameter comprise the active duration of the Internet of things terminal;
the judging unit is used for judging whether the terminal of the Internet of things is a terminal of the Internet of things with a fixed position or not according to the type information of the terminal of the Internet of things;
the first control unit is used for controlling the service gateway and the PDN gateway to establish and store the bearing context information of the terminal of the Internet of things when the judging unit judges that the terminal of the Internet of things is the terminal of the Internet of things with a fixed position;
the sending unit is used for sending an instruction for closing the periodic tracking area updating switch to the Internet of things terminal when the judging unit judges that the Internet of things terminal is the Internet of things terminal with a fixed position, so that the Internet of things terminal can automatically close the periodic tracking area updating switch after receiving the instruction for closing the periodic tracking area updating switch;
the first control unit is further configured to control the service gateway and the PDN gateway to delete the bearer context information of the terminal of the internet of things after the active duration elapses.
Preferably, the power saving mode parameter further includes a power saving duration of the internet of things terminal;
the receiving unit is further configured to receive a tracking area update request sent by the internet of things terminal when the power saving duration of the internet of things terminal is over;
the first control unit is further configured to control the service gateway and the PDN gateway to establish and store the bearer context information of the terminal of the internet of things after the receiving unit receives the tracking area update request, and further configured to control the service gateway and the PDN gateway to delete the bearer context information of the terminal of the internet of things after the active duration elapses.
Preferably, the mobility management entity further includes: the device comprises a timer, a second control unit and a monitoring unit;
the second control unit is configured to start the timer after the first control unit controls the service gateway and the PDN gateway to establish and store the bearer context information of the terminal of the internet of things, and before the first control unit controls the service gateway and the PDN gateway to delete the bearer context information of the terminal of the internet of things, where a timing duration of the timer is an active duration of the terminal of the internet of things;
and the monitoring unit is used for monitoring whether the timer finishes timing, and when the timer finishes timing, the monitoring unit instructs the first control unit to control the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things.
In another aspect, the present invention further provides an internet of things terminal, including:
a sending unit, configured to send attach information to a mobility management entity, where the attach information includes: the mobile management entity judges whether the terminal of the Internet of things is a terminal of the Internet of things with a fixed position or not according to the type information after receiving the attachment information, controls a service gateway and a PDN gateway to establish and store bearing context information of the terminal of the Internet of things after judging that the terminal of the Internet of things is the terminal of the Internet of things with the fixed position, and controls the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things after the active time;
a receiving unit, configured to receive an instruction for turning off a periodic tracking area update switch of the mobile management entity, where the instruction is returned by the mobility management entity;
and the automatic closing unit is used for automatically closing the periodic tracking area updating switch after the receiving unit receives an instruction of closing the periodic tracking area updating switch.
Preferably, the internet of things terminal further includes: the device comprises a timer, a timer control unit and a monitoring unit;
the power saving mode parameters also comprise the power saving duration of the terminal of the Internet of things;
the timer control unit is configured to start the timer after the receiving unit receives an instruction to turn off the periodic tracking area update switch from the mobility management entity, where the instruction is returned by the mobility management entity, and a timing duration of the timer is a sum of the active duration and the power saving duration;
the monitoring unit is used for monitoring whether the timer finishes timing in real time, and when the timer finishes timing, the sending unit is instructed to send a tracking area updating request to the mobile management entity, so that the mobile management entity controls the service gateway and the PDN gateway to establish and store the bearing context information of the Internet of things terminal after receiving the tracking area updating request.
The invention has the beneficial technical effects that:
according to the EPC bearer establishing method, the mobile management entity and the Internet of things terminal provided by the invention, when the Internet of things terminal is in the active duration, the MME controls the SGW and the PGW to establish and store the bearer context information of the Internet of things terminal, and when the active duration of the Internet of things terminal is finished, the SGW and the PGW are controlled to delete the stored bearer context information of the Internet of things terminal, so that the bearer context information of the Internet of things terminal does not need to be stored in the SGW and the PGW all the time, the memory pressure of the SGW and the PGW is relieved, and the performance of the SGW and the PGW is prevented from being influenced.
Drawings
Fig. 1 is a flowchart of a method for establishing an EPC bearer according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for establishing an EPC bearer according to a second embodiment of the present invention;
fig. 3 is a flowchart of a method for establishing an EPC bearer according to a third embodiment of the present invention;
fig. 4 is a flowchart of a method for establishing an EPC bearer according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a mobility management entity according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an internet of things terminal according to a sixth embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the EPC bearer establishment method, the mobility management entity, and the internet of things terminal provided by the present invention are described in detail below with reference to the accompanying drawings.
The terminal of the internet of things related in the invention is a terminal applying NB-IoT (narrowband Internet of things) technology, and can work in a power saving mode, wherein the working time of the terminal of the internet of things is divided into active time and power saving time, the terminal of the internet of things can normally carry out communication activities in the active time, and the terminal of the internet of things only keeps a registered state and does not carry out communication activities in the power saving time. The EPC bearer establishment method provided by the invention is used for establishing the EPC bearer to improve the memory resource utilization rate of the service gateway and the PDN gateway when the terminal of the Internet of things works in a power saving mode, wherein the EPC bearer means that connection is established between functional entities in a 4G core network for information transmission before the terminal uses the 4G core network for communication.
Example one
The present embodiment provides an EPC bearer establishment method, which uses a Mobile Management Entity (MME) as an execution subject, as shown in fig. 1, the method includes:
and S101, receiving attachment information sent by the terminal of the Internet of things.
When the terminal of the Internet of things is started up for attachment, attachment information is sent to the MME, and the attachment information comprises: type information and power saving mode parameters of the terminal of the Internet of things; the type information of the Internet of things terminal is used for representing the type of the Internet of things terminal, and specifically comprises a fixed position Internet of things terminal and a mobile position Internet of things terminal; the power saving mode parameter includes an active duration of the internet of things terminal, and the active duration refers to a duration of a single communication activity performed by the internet of things terminal in the power saving mode.
And S102, judging whether the terminal of the Internet of things is a fixed-position terminal of the Internet of things or not according to the type information of the terminal of the Internet of things.
When the internet of things terminal is judged to be the fixed position internet of things terminal, executing the step S103 and the step S104 at the same time; and when the thing networking terminal is judged not to be the thing networking terminal with the fixed position, the process of the method is ended.
And S103, controlling the service gateway and the PDN gateway to establish and store the bearing context information of the terminal of the Internet of things.
When the MME judges that the IOT terminal is a fixed-position IOT terminal, a request for establishing the bearing context information of the IOT terminal is sent to a Serving Gateway (SGW), the SGW establishes and stores the bearing context information of the IOT terminal after receiving the request, meanwhile, the SGW sends the request for establishing the bearing context information of the IOT terminal to a PDN Gateway (PGW), and the PGW establishes and stores the bearing context information of the IOT terminal after receiving the request. It should be noted that, the establishment and storage of the bearer context information of the terminal of the internet of things by the SGW and the PGW are already the prior art in the field, and thus detailed description of the present invention is omitted.
And step S104, sending an instruction for closing the periodic tracking area updating switch to the terminal of the Internet of things, so that the terminal of the Internet of things can automatically close the periodic tracking area updating switch after receiving the instruction for closing the periodic tracking area updating switch.
In the prior art, the internet of things terminal periodically updates the tracking area in the power saving mode, and applies for the active duration to the MME when updating the tracking area, but in the invention, because the internet of things terminal is determined to be the internet of things terminal with a fixed position, the attached base station cell of the internet of things terminal does not change under normal conditions, in the method flow of the invention, the internet of things terminal does not need to periodically update the tracking area, and therefore, when the terminal type of the internet of things terminal is determined to be the fixed position, the periodic tracking area updating function of the terminal is closed, so that unnecessary interaction is reduced.
And S105, after the active time length, controlling the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things.
In this embodiment, after the MME controls the SGW and the PGW to establish and store the bearer context information of the internet of things terminal, after the activation time, the internet of things terminal enters the power saving time, at this time, the internet of things terminal only maintains the registration state in the network without performing communication activity, and therefore, at this time, the MME controls the SGW and the PGW again to delete the bearer context information of the internet of things terminal, so that useless bearer context information does not need to be stored in the SGW and the PGW, and further, the utilization rate of the memory resources of the SGW and the PGW is improved.
According to the EPC bearer establishment method provided by the embodiment, when the IoT terminal is in the active duration, the MME controls the SGW and the PGW to establish and store the bearer context information of the IoT terminal, and when the active duration of the IoT terminal is over, the MME controls the SGW and the PGW to delete the stored bearer context information of the IoT terminal, so that the bearer context information of the IoT terminal does not need to be stored in the SGW and the PGW all the time, the memory pressure of the SGW and the PGW is relieved, and the performance of the SGW and the PGW is prevented from being influenced.
Example two
The present embodiment provides an EPC bearer establishment method, which is a supplement to the first embodiment, as shown in fig. 2.
In this embodiment, in the attachment information sent by the terminal of the internet of things, the power saving mode parameter may further include a power saving duration, and in the power saving duration, the terminal of the internet of things is only kept in a registration state in the network without performing communication activities. Further, after step S105, the internet of things terminal enters the power saving duration after the active duration, and then after the power saving duration ends, the internet of things terminal enters the active duration again, and at this time, after step S105, the method includes the following steps:
and S106, receiving a tracking area updating request sent by the terminal of the Internet of things when the power saving duration of the terminal of the Internet of things is over.
And step S107, after receiving the tracking area updating request, controlling the service gateway and the PDN gateway to establish and store the bearing context information of the terminal of the Internet of things, and returning to execute the step S105.
In this embodiment, when the terminal of the internet of things finishes the power saving duration and enters the active duration again, the bearer context information of the terminal of the internet of things needs to be established again, at this time, the terminal of the internet of things sends a tracking area update request to the MME, and the MME controls a Serving Gateway (SGW) and a PDN Gateway (PGW) to establish and store the bearer context information of the terminal of the internet of things again after receiving the tracking area update request. The process of establishing the bearer context of the terminal of the internet of things is the same as that in step S103, and is not described herein again, and it should be noted that in this embodiment, only the function of automatically performing the periodic tracking area update of the terminal of the internet of things is turned off, but the tracking area update function of the internet of things is not turned off, that is, the terminal of the internet of things can still actively initiate the update of the tracking area.
In addition, in this embodiment, a timer is set to time the active duration of the terminal of the internet of things, specifically, as shown in fig. 2, the method further includes, between step S103 and step S105:
step S108, setting a timer.
The timing duration of the timer is the active duration of the terminal of the Internet of things.
And step S109, monitoring whether the timer counts time and finishes.
In step S109, when the timer is monitored to end, step S105 is executed.
In the embodiment, the timer is set in the MME to monitor the active duration of the terminal of the internet of things, but in addition, the timer may also be set in the terminal of the internet of things to monitor the active duration of the terminal of the internet of things in a timing manner.
EXAMPLE III
The embodiment provides an EPC bearer establishment method, where an internet of things terminal is used as an execution subject, as shown in fig. 3, the method includes:
step S201, sending the attachment information to MME.
When the terminal of the Internet of things is attached after being started, attaching information is sent to the MME, wherein the attaching information comprises: type information and power saving mode parameters of the mobile terminal; the type information of the Internet of things terminal is used for representing the type of the Internet of things terminal, and specifically comprises a fixed position Internet of things terminal and a mobile position Internet of things terminal; the power saving mode parameter includes an active duration of the power saving mode parameter, and the active duration refers to a duration of a single communication activity of the internet of things terminal in the power saving mode.
After receiving the attachment information, the MME judges whether the terminal of the Internet of things is the terminal of the Internet of things with a fixed position according to the type information, controls a Service Gateway (SGW) and a PDN Gateway (PGW) to establish and store the bearing context information of the terminal of the Internet of things after judging that the terminal of the Internet of things is the terminal of the Internet of things with the fixed position, and controls the SGW and the PGW to delete the bearing context information of the terminal of the Internet of things after the activation duration. In this embodiment, the process of controlling, by the MME, the SGW and the PGW to establish and delete the terminal of the internet of things is the same as step S103 in the first embodiment, and details are not repeated here.
Step S202, receiving an instruction of closing the self-periodic tracking area updating switch returned by the MME.
And step S203, according to the instruction of closing the periodic tracking area updating switch, closing the periodic tracking area updating switch.
In the prior art, when an internet of things terminal is in a power saving mode, the internet of things terminal periodically updates a tracking area and applies for active duration to an MME when updating the tracking area.
According to the EPC bearer establishment method provided by the embodiment, when the IoT terminal is in the active duration, the MME controls the SGW and the PGW to establish and store the bearer context information of the IoT terminal, and when the active duration of the IoT terminal is over, the MME controls the SGW and the PGW to delete the stored bearer context information of the IoT terminal, so that the bearer context information of the IoT terminal does not need to be stored in the SGW and the PGW all the time, the memory pressure of the SGW and the PGW is relieved, and the performance of the SGW and the PGW is prevented from being influenced.
Example four
The embodiment provides an EPC bearer establishment method, which is complementary to the EPC bearer establishment method provided in the third embodiment, and specifically, in this embodiment, in attachment information sent by an internet of things terminal to an MME, a power saving mode parameter further includes a power saving duration of the internet of things terminal, and within the power saving duration, the internet of things terminal is only kept in a registration state in a network without performing communication activity. After the internet of things terminal receives the instruction of closing the periodic tracking area update switch from the MME in step S202, the method further includes the following steps while executing step S203:
and step S204, starting a timer.
The timing duration of the timer is the sum of the active duration and the power saving duration.
And step S205, whether the real-time monitoring timer finishes timing or not.
When the timer is monitored to end, step S206 is executed.
Step S206, a tracking area updating request is sent to the MME, so that the MME controls the SGW and the PGW to establish and store the bearing context information of the terminal of the Internet of things after receiving the tracking area updating request.
In this embodiment, a timer is provided in the terminal of the internet of things, and is used for timing a work cycle of the terminal of the internet of things, where the work cycle of the terminal of the internet of things refers to a sum of an active duration and a power saving duration of the terminal of the internet of things. When the internet of things terminal receives an instruction sent by an MME (mobility management entity) for closing a periodic tracking area updating switch, the fact that the internet of things terminal starts to enter an active time length is indicated, namely, the internet of things terminal starts to enter a working period, at the moment, the internet of things terminal starts a timer to time the working period, and monitors whether the timer is ended in real time, when the timer is ended, the fact that the working period of the internet of things terminal is ended is indicated, at the moment, the internet of things terminal needs to initiate a tracking area updating request, so that the MME is triggered to control the SGW and the PGW to establish again and store the bearing context information of the internet of things terminal.
In addition, it should be noted that, in the present invention, when the network capability parameter of the internet of things terminal needs to be modified, for example, the power saving mode parameter is modified, when the internet of things terminal initiates a tracking area update request to the MME, the update request carries the network parameter that needs to be modified, and after receiving the tracking area update request, the MME determines the power saving mode parameter of the internet of things terminal again according to the network condition and according to the network parameter carried in the tracking area update request.
EXAMPLE five
The present embodiment provides a Mobility Management Entity (MME), as shown in fig. 5, the MME includes: a receiving unit 11, a judging unit 12, a first control unit 13, and a transmitting unit 14; the receiving unit 11 is configured to receive attachment information sent by the terminal of the internet of things, where the attachment information includes: the type information of the Internet of things terminal and the power saving mode parameter comprise the active duration of the Internet of things terminal; the judging unit 12 is configured to judge whether the terminal of the internet of things is a terminal of the internet of things at a fixed location according to the type information of the terminal of the internet of things; the first control unit 13 is configured to control the service gateway and the PDN gateway to establish and store the bearer context information of the internet of things terminal when the determination unit 12 determines that the internet of things terminal is a fixed-location internet of things terminal; the sending unit 14 is configured to send an instruction to close the periodic tracking area update switch to the internet of things terminal when the determining unit 12 determines that the internet of things terminal is the fixed-position internet of things terminal, so that the internet of things terminal automatically closes the periodic tracking area update switch after receiving the instruction to close the periodic tracking area update switch; the first control unit 13 is further configured to control the serving gateway and the PDN gateway to delete the bearer context information of the terminal of the internet of things after the active duration elapses.
In the Mobility Management Entity (MME) provided in this embodiment, when the terminal of the internet of things is in the active duration, the MME controls the SGW and the PGW to establish and store the bearer context information of the terminal of the internet of things, and when the active duration of the terminal of the internet of things is over, the MME controls the SGW and the PGW to delete the stored bearer context information of the terminal of the internet of things, so that the bearer context information of the terminal of the internet of things does not need to be stored in the SGW and the PGW all the time, thereby relieving the memory pressure of the SGW and the PGW, and avoiding the performance of the terminal from being affected
Further, in some embodiments, the power saving mode parameter received by the receiving unit 11 further includes a power saving duration of the internet of things terminal, and at this time, the receiving unit 11 is further configured to receive a tracking area update request sent by the internet of things terminal when the power saving duration of the internet of things terminal is ended; the first control unit 13 is further configured to control the service gateway and the PDN gateway to establish and store the bearer context information of the terminal of the internet of things after the receiving unit 11 receives the tracking area update request, and further configured to control the service gateway and the PDN gateway to delete the bearer context information of the terminal of the internet of things after the active duration elapses.
In some embodiments, the MME further comprises: a timer 15, a second control unit 16 and a monitoring unit 17; the second control unit 16 is configured to start the timer 15 after the first control unit 13 controls the service gateway and the PDN gateway to establish and store the bearer context information of the terminal of the internet of things, and before the first control unit 13 controls the service gateway and the PDN gateway to delete the bearer context information of the terminal of the internet of things, where a timing duration of the timer 15 is an active duration of the terminal of the internet of things; the monitoring unit 17 is configured to monitor whether the timer 15 finishes timing, and instruct the first control unit 13 to control the serving gateway and the PDN gateway to delete the bearer context information of the terminal of the internet of things when it is monitored that the timer 15 finishes timing.
Therefore, for the functional units of the mobility management entity and the interaction process between the functional units in this embodiment, reference is made to the description of the corresponding method steps in the first and second embodiments for a reference, and details are not repeated here.
EXAMPLE six
This embodiment provides an internet of things terminal, as shown in fig. 6, this internet of things terminal includes: a transmitting unit 21, a receiving unit 22, and an automatic closing unit 23; the sending unit 21 is configured to send attachment information to the mobility management entity, where the attachment information includes: the mobile management entity judges whether the terminal of the Internet of things is a terminal of the Internet of things with a fixed position or not according to the type information after receiving the attachment information, controls a service gateway and a PDN gateway to establish and store bearing context information of the terminal of the Internet of things after judging that the terminal of the Internet of things is the terminal of the Internet of things with the fixed position, and controls the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things after the active time; the receiving unit 22 is configured to receive an instruction to turn off the self-tracking area update switch, where the instruction is returned by the mobility management entity; the automatic turn-off unit 23 is configured to automatically turn off the periodic tracking area update switch after the receiving unit 22 receives an instruction to turn off the periodic tracking area update switch.
Further, in some embodiments, the power saving mode parameter sent by the sending unit further includes a power saving duration of the terminal of the internet of things; the thing networking terminal still includes: a timer 24, a timer control unit 25, and a monitoring unit 26; the timer control unit 25 is configured to start the timer 24 after the receiving unit 22 receives an instruction to turn off the periodic tracking area update switch returned by the mobility management entity, where a timing duration of the timer 24 is a sum of the active duration and the power saving duration; the monitoring unit 26 is configured to monitor whether the timer 24 finishes timing in real time, and when it is monitored that the timer 24 finishes timing, instruct the sending unit 21 to send a tracking area update request to the mobility management entity, so that the mobility management entity controls the serving gateway and the PDN gateway to establish and store the bearer context information of the terminal of the internet of things after receiving the tracking area update request.
The terminal of the internet of things provided in this embodiment is used to implement the EPC bearer establishment methods provided in the third and fourth embodiments of the present invention, and therefore, for the functional units of the terminal of the internet of things and the interaction process between the functional units in this embodiment, reference is made to the description of the corresponding method steps in the third and fourth embodiments, and details are not described here again.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (10)

1. An EPC bearer establishment method, comprising:
receiving attachment information sent by a terminal of the Internet of things, wherein the attachment information comprises: the type information of the Internet of things terminal and the power saving mode parameter comprise the active duration of the Internet of things terminal;
judging whether the terminal of the Internet of things is a terminal of the Internet of things with a fixed position or not according to the type information of the terminal of the Internet of things;
when the internet of things terminal is judged to be a fixed-position internet of things terminal, a control service gateway and a PDN gateway establish and store the bearing context information of the internet of things terminal, and simultaneously send an instruction for closing a self periodic tracking area updating switch to the internet of things terminal, so that the internet of things terminal automatically closes the self periodic tracking area updating switch after receiving the instruction for closing the self periodic tracking area updating switch;
and after the active duration, controlling the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things.
2. The method of claim 1, wherein the power saving mode parameter further comprises a power saving duration of the terminal of the internet of things;
after the step of controlling the service gateway and the PDN gateway to delete the bearer context information of the terminal of the internet of things, the method further includes:
when the power saving duration of the terminal of the Internet of things is over, receiving a tracking area updating request sent by the terminal of the Internet of things;
after receiving the tracking area updating request, controlling the service gateway and the PDN gateway to establish and store the bearing context information of the terminal of the Internet of things;
and after the active duration, continuing to control the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things.
3. The method according to claim 1 or 2, wherein after the controlling the serving gateway and the PDN gateway establishes and saves the bearer context information of the terminal of the internet of things, and before the controlling the serving gateway and the PDN gateway deletes the bearer context information of the terminal of the internet of things, further comprising:
setting a timer; the timing duration of the timer is the active duration of the terminal of the Internet of things;
monitoring whether the timer finishes timing;
and when the timer is monitored to finish timing, executing the step of controlling the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things.
4. An EPC bearer establishment method, comprising:
sending attachment information to a mobility management entity, wherein the attachment information comprises: the mobile management entity judges whether the terminal of the Internet of things is a terminal of the Internet of things with a fixed position or not according to the type information after receiving the attachment information, controls a service gateway and a PDN gateway to establish and store bearing context information of the terminal of the Internet of things after judging that the terminal of the Internet of things is the terminal of the Internet of things with the fixed position, and controls the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things after the active time;
receiving an instruction of closing a self periodic tracking area updating switch returned by the mobile management entity;
and closing the periodic tracking area updating switch according to the instruction for closing the periodic tracking area updating switch.
5. The method of claim 4, wherein the power saving mode parameter further includes a power saving duration thereof; the method further comprises the following steps:
after receiving an instruction of closing a self periodic tracking area updating switch returned by the mobile management entity, starting a timer, wherein the timing duration of the timer is the sum of the active duration and the power saving duration;
monitoring whether the timer finishes timing in real time;
when the timer is monitored to finish timing, a tracking area updating request is sent to the mobile management entity, so that the mobile management entity controls the service gateway and the PDN gateway to establish and store the bearing context information of the Internet of things terminal after receiving the tracking area updating request.
6. A mobility management entity, comprising:
the receiving unit is used for receiving attachment information sent by the terminal of the Internet of things, and the attachment information comprises: the type information of the Internet of things terminal and the power saving mode parameter comprise the active duration of the Internet of things terminal;
the judging unit is used for judging whether the terminal of the Internet of things is a terminal of the Internet of things with a fixed position or not according to the type information of the terminal of the Internet of things;
the first control unit is used for controlling the service gateway and the PDN gateway to establish and store the bearing context information of the terminal of the Internet of things when the judging unit judges that the terminal of the Internet of things is the terminal of the Internet of things with a fixed position;
the sending unit is used for sending an instruction for closing the periodic tracking area updating switch to the Internet of things terminal when the judging unit judges that the Internet of things terminal is the Internet of things terminal with a fixed position, so that the Internet of things terminal can automatically close the periodic tracking area updating switch after receiving the instruction for closing the periodic tracking area updating switch;
the first control unit is further configured to control the service gateway and the PDN gateway to delete the bearer context information of the terminal of the internet of things after the active duration elapses.
7. The MME of claim 6, wherein the power saving mode parameter further comprises a power saving duration of the IOT terminal;
the receiving unit is further configured to receive a tracking area update request sent by the internet of things terminal when the power saving duration of the internet of things terminal is over;
the first control unit is further configured to control the service gateway and the PDN gateway to establish and store the bearer context information of the terminal of the internet of things after the receiving unit receives the tracking area update request, and further configured to control the service gateway and the PDN gateway to delete the bearer context information of the terminal of the internet of things after the active duration elapses.
8. The mobility management entity according to claim 6 or 7, further comprising: the device comprises a timer, a second control unit and a monitoring unit;
the second control unit is configured to start the timer after the first control unit controls the service gateway and the PDN gateway to establish and store the bearer context information of the terminal of the internet of things, and before the first control unit controls the service gateway and the PDN gateway to delete the bearer context information of the terminal of the internet of things, where a timing duration of the timer is an active duration of the terminal of the internet of things;
and the monitoring unit is used for monitoring whether the timer finishes timing, and when the timer finishes timing, the monitoring unit instructs the first control unit to control the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things.
9. An internet of things terminal, comprising:
a sending unit, configured to send attach information to a mobility management entity, where the attach information includes: the mobile management entity judges whether the terminal of the Internet of things is a terminal of the Internet of things with a fixed position or not according to the type information after receiving the attachment information, controls a service gateway and a PDN gateway to establish and store bearing context information of the terminal of the Internet of things after judging that the terminal of the Internet of things is the terminal of the Internet of things with the fixed position, and controls the service gateway and the PDN gateway to delete the bearing context information of the terminal of the Internet of things after the active time;
a receiving unit, configured to receive an instruction for turning off a periodic tracking area update switch of the mobile management entity, where the instruction is returned by the mobility management entity;
and the automatic closing unit is used for automatically closing the periodic tracking area updating switch after the receiving unit receives an instruction of closing the periodic tracking area updating switch.
10. The internet of things terminal of claim 9, further comprising: the device comprises a timer, a timer control unit and a monitoring unit;
the power saving mode parameters also comprise the power saving duration of the terminal of the Internet of things;
the timer control unit is configured to start the timer after the receiving unit receives an instruction to turn off the periodic tracking area update switch from the mobility management entity, where the instruction is returned by the mobility management entity, and a timing duration of the timer is a sum of the active duration and the power saving duration;
the monitoring unit is used for monitoring whether the timer finishes timing in real time, and when the timer finishes timing, the sending unit is instructed to send a tracking area updating request to the mobile management entity, so that the mobile management entity controls the service gateway and the PDN gateway to establish and store the bearing context information of the Internet of things terminal after receiving the tracking area updating request.
CN201911285732.9A 2019-12-13 2019-12-13 EPC bearer establishment method, mobile management entity and Internet of things terminal Active CN111065073B (en)

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