CN102625475A - Method and equipment for deleting PDN connection - Google Patents
Method and equipment for deleting PDN connection Download PDFInfo
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- CN102625475A CN102625475A CN2012100991325A CN201210099132A CN102625475A CN 102625475 A CN102625475 A CN 102625475A CN 2012100991325 A CN2012100991325 A CN 2012100991325A CN 201210099132 A CN201210099132 A CN 201210099132A CN 102625475 A CN102625475 A CN 102625475A
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- pdn
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
Abstract
The invention discloses a method and equipment for deleting PDN (Public Data Network) connections. The method comprises the following steps: when the signaling congestion occurs to a current network, network side equipment acquires priority information of the PDN connections in a BearerContext of UE (User Equipment); the priority information of the PDN connections is determined by a command that whether the PND connections have a low access priority lowaccesspriority; and the network side equipment deletes the PDN connections in the BearerContext according to the priority information of the PDN connections. In the embodiment of the invention, when the congestion degree of the network is light, the PND connection of which the priorities are higher than the lowaccesspriority and the PDN connections of emergency services can be ensured to coexist, so that the UED can be ensured to simultaneously acquire normal priority services and the emergency services to the greatest extent and the using experience of a user is improved.
Description
Technical field
The present invention relates to communication technical field, relate in particular to delet method and equipment that a kind of PDN connects.
Background technology
One, UE (User Equipment, subscriber equipment) configured (configuration) for NAS (Non Access Stratum, Non-Access Stratum) signaling (signaling) low priority (low priority).
Existing protocol has proposed for the UE that is configured to NAS signaling low priority; Be used for professional PDN (the Packet Data Network of emergency (promptly) in case set up; Packet data network) connects, then need delete the professional PDN of other all non-emergency and connect.
Two, Emergency Attach (emergency attached).
Professional in order to make UE can in restricted cell (restricted cell refers to the sub-district that UE can't normally be attached to network), obtain emergency; Current agreement regulation UE can initiate emergency attach in restricted cell; In case and UE initiation emergency attach, then UE will not allow to set up the professional PDN connection of other non-emergency; Therefore when UE only exists the professional PDN of emergency to connect, can think that then this UE is in emergency attach state.
Three, support the UE that multipriority is professional.
The PDN that the UE of the current low of having access priority (low access priority) can initiate normal access priority (normal access priority) connects; Concrete, generally, the PDN that UE need set up low access priority connects; Yet when emergency case (as be destroyed, monitor special circumstances etc.) occurring, the PDN that UE need set up normal access priority connects.
Four, APN based session management congestion control (based on the congested control of session management of APN (Access Point Name, APN)).
When network equipment monitors APN when congested, network equipment can start the session management congestion control mechanism based on APN; Concrete, the session management request message that network equipment refusal UE initiates; And/or, initiate the PDN connection that PDN goes the connection procedure deletion to use congested APN to set up.
Five, General NAS level mobility management congestion control (the congested control of general NAS (Non-access Stratum, Non-Access Stratum) level mobile management).
When overload took place the core net controlled entity, network can start the congested control of general NAS level mobile management; Concrete, the mobile management request message that network equipment refusal UE initiates.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following problem:
If being configured to the UE of NAS signaling low priority has initiated the professional PDN of emergency and has connected the process of setting up; Then network equipment need be deleted the professional PDN connection of all non-emergency, and this moment, the PDN connection of the normal access priority that UE sets up also will be deleted; The professional PDN of the emergency of this UE connects and is connected and can't coexists with the PDN of normal access priority, has influenced user's use experience.
Summary of the invention
Delet method and equipment that the embodiment of the invention provides a kind of PDN to connect; PDN with preferential deletion low access priority connects; Thereby when network congestion degree is light, guarantee that as far as possible UE can obtain normal priority business and urgency traffic simultaneously, improve user's use experience.
In order to achieve the above object, the delet method that the embodiment of the invention provides a kind of PDN to connect comprises:
When current network generation signaling congestion, the precedence information that PDN connects among the bearer context Bearer Context of network equipment acquisition user equipment (UE); The precedence information that said PDN connects connects the indication that whether has low access priority low access priority by said PDN and confirms;
The precedence information that said network equipment connects according to PDN is deleted the PDN that exists among the said Bearer Context and is connected.
The sweep equipment that the embodiment of the invention provides a kind of PDN to connect comprises:
Obtain module, be used for when current network generation signaling congestion, the precedence information that PDN connects among the bearer context Bearer Context of acquisition user equipment (UE); The precedence information that said PDN connects connects the indication that whether has low access priority low access priority by said PDN and confirms;
Removing module is used for deleting the PDN connection that said Bearer Context exists according to the precedence information that PDN connects.
Compared with prior art; The embodiment of the invention has the following advantages at least: in the embodiment of the invention; Delete PDN through the precedence information of PDN connection and connect, connect with the PDN that when deletion PDN connects, preferentially deletes the low access priority that exists among the said Bearer Context; When network congestion degree is light, only need the PDN of deletion low access priority to connect, and when network congestion degree was heavier, the PDN that just needs deletion priority to be higher than low access priority (access low priority) connected; Thereby can guarantee when network congestion degree is light that PDN that priority is higher than low access priority connects with the PDN of emergency (promptly) business is connected and can coexists; Thereby guarantee that as far as possible UE can obtain normal priority business and urgency traffic simultaneously, improve user's use experience.
Description of drawings
In order to be illustrated more clearly in technical scheme of the present invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the delet method schematic flow sheet that a kind of PDN that the embodiment of the invention one provides connects;
Fig. 2 is the delet method schematic flow sheet that a kind of PDN that the embodiment of the invention two provides connects;
Fig. 3 is the sweep equipment structural representation that a kind of PDN that the embodiment of the invention three provides connects.
Embodiment
To combine the accompanying drawing among the present invention below, the technical scheme among the present invention is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
The delet method that the embodiment of the invention one provides a kind of PDN to connect, with the PDN connection of reasonable deletion UE, and this UE can be specially: the UE that is configured to NAS signaling low priority (Non-Access Stratum signaling low priority); As shown in Figure 1, this method may further comprise the steps:
In the embodiment of the invention, whether the precedence information that PDN connects exists the indication of low access priority (low access priority) to confirm by the PDN connection; Promptly when there was the indication of low access priority in the PDN connection, the PDN that PDN is connected to low access priority connected; When there was not the indication of low access priority in the PDN connection, PDN was connected to the PDN connection that other priority are higher than low access priority.
In the embodiment of the invention, this network equipment can include but not limited to: SGSN (Serving GPRS Supporting Node, Serving GPRS Support Node) or MME (Mobility Management Entity, Mobility Management Entity).
In the embodiment of the invention, current network generation signaling congestion is specially current network and is in overload or starts the session management congestion control mechanism based on APN; Wherein, whether network equipment (being the core net controlled entity) can be in overload (overload) state according to configuration guidelines decision network (being core net) when starting general NAS level congestion control mechanism; Concrete, if when the load of current network has surpassed pre-configured overload threshold, then this network equipment can determine network and is in overload.
It should be noted that; For the UE that is configured to NAS signaling low priority; When setting up the PDN connection; Connect except setting up the professional PDN of emergency, and use outside Access class (access grade) the 11-15 access network, all need connect to set up and carry low access priority indicator (indication) in the request message at PDN; And network equipment need be preserved low access priority indication in the Bearer Context that PDN connects when receiving that request message is set up in the PDN connection of carrying low access priority indicator; Therefore, this network equipment can connect with the PDN that obtains low access priority through the precedence information of each PDN connection among the inquiry Bearer Context.
In the embodiment of the invention, network equipment connects through the PDN that initiates to exist among PDN disconnection (connection goes to connect) the process deletion Bearer Context.
In the embodiment of the invention; The precedence information that network equipment connects according to PDN is deleted the PDN that exists among the Bearer Context and is connected; Include but not limited to: when network equipment connected at the precedence information deletion PDN that connects according to PDN, the PDN that preferentially deletes the low access priority that exists among the Bearer Context connected.
It should be noted that; The situation that the PDN of the low access priority that exists among the above-mentioned preferential deletion Bearer Context connects; Be specially: when network congestion degree is light; The PDN that only deletes low access priority connects, and when network congestion degree is heavier, deletes the PDN connection of low access priority and the PDN connection that priority is higher than low access priority simultaneously.
Further; In the embodiment of the invention; The precedence information that PDN connects among the Bearer Context of network equipment acquisition UE, and the PDN ways of connecting that exists among the precedence information deletion Bearer Context according to the PDN connection include but not limited to following mode:
Mode one, network equipment are after the session management congestion control mechanism that starts based on APN APN; The precedence information that the PDN that from the Bearer Context of UE, to use APN to set up connects, and the PDN of the precedence information deletion UE that connects according to PDN connects.
Mode two, network equipment are starting general NAS level mobile management congestion control mechanism; And after the session management request message that receives from UE; If finding the session management request message is to connect in order to ask to set up the professional PDN of emergency; Then from the Bearer Context of UE, obtain the precedence information that PDN connects, and delete the PDN connection of UE according to the precedence information that PDN connects.
Mode three, network equipment are starting general NAS level mobile management congestion control mechanism; And after the session management request message that receives from UE; If finding the session management request message is in order to ask to set up the PDN connection that priority is higher than low priority; Then from the Bearer Context of UE, obtain the precedence information that PDN connects, and delete the PDN connection of UE according to the precedence information that PDN connects.
It should be noted that PDN that above-mentioned priority is higher than low priority connects includes but not limited to: the PDN of normal access priority (normal access priority) connects.
In the embodiment of the invention, above-mentioned session management request message includes but not limited to following message: PDN CONNECTIVITY REQUEST (Packet Data Network's connection request) message; BEARER RESOURCE ALLOCATION REQUEST (bearing resource request for allocation) message; BEARER RESOURCE MODIFICATION REQUEST (bearing resource is revised request) message.
In sum, in the embodiment of the invention, delete PDN through the precedence information of PDN connection and connect, connect with the PDN that when deletion PDN connects, preferentially deletes the low access priority that exists among the said Bearer Context; When network congestion degree is light, only need the PDN of deletion low access priority to connect, and when network congestion degree was heavier, the PDN that just needs deletion priority to be higher than low access priority (access low priority) connected; Thereby can guarantee when network congestion degree is light that PDN that priority is higher than low access priority connects with the PDN of emergency (promptly) business is connected and can coexists; Thereby guarantee that as far as possible UE can obtain normal priority business and urgency traffic simultaneously, improve user's use experience.
Further; For the UE that is configured to NAS signaling low priority; When the PDN that sets up professional PDN connection of emergency or normal access priority connects; Only need the PDN that deletes the low access priority that preserves among the Bearer Context to connect; Thereby can guarantee that PDN that priority is higher than low priority connects with the professional PDN of emergency is connected and can coexists, and makes UE can obtain normal priority business and urgency traffic simultaneously, assurance user use experience.
Embodiment two
The delet method that the embodiment of the invention two provides a kind of PDN to connect, as shown in Figure 2 when current network is in overload, this method may further comprise the steps:
Step 201, SGSN/MME receives the session management request message from UE, and this session management request message is to connect in order to ask to set up the professional PDN of emergency; Perhaps, this session management request message is in order to ask the PDN that sets up normal access priority to connect.
Step 202, the Bearer Context of this UE of SGSN/MME inspection.
Step 203, SGSN/MME judges that the PDN that whether has low access priority among the Bearer Context of this UE connects; If, execution in step 204; If not, execution in step 205.
Step 204, SGSN/MME deletes the PDN connection of the low access priority that exists among the Bearer Context through initiating PDN disconnection process.
Step 205, process ends.
Based on the inventive concept same with said method, the sweep equipment (being network equipment) that also provides a kind of packet data network PDN to connect in the embodiment of the invention like SGSN or MME etc., as shown in Figure 3, this network equipment comprises:
Obtain module 11, be used for when current network generation signaling congestion, the precedence information that PDN connects among the bearer context Bearer Context of acquisition user equipment (UE); The precedence information that said PDN connects connects the indication that whether has low access priority low access priority by said PDN and confirms;
Removing module 12 is used for deleting the PDN connection that said Bearer Context exists according to the precedence information that PDN connects.
Said acquisition module 11 specifically is used for after the session management congestion control mechanism that starts based on APN APN, from the Bearer Context of said UE, obtains the precedence information of the PDN connection of the said APN foundation of use; Perhaps,
Starting general Non-Access Stratum NAS level mobile management congestion control mechanism; And after the session management request message that receives from UE; If finding said session management request message is to connect in order to ask to set up the professional PDN of urgent emergency, then from the Bearer Context of said UE, obtain the precedence information that PDN connects; Perhaps,
Starting general NAS level mobile management congestion control mechanism; And after the session management request message that receives from UE; If finding said session management request message is in order to ask to set up the PDN connection that priority is higher than low priority, then from the Bearer Context of said UE, to obtain the precedence information that PDN connects.
When there was the indication of low access priority in the PDN connection, the PDN that said PDN is connected to low access priority connected;
Said removing module 12 specifically is used for when the precedence information deletion PDN that connects according to PDN connects, and the PDN that preferentially deletes the low access priority that exists among the said Bearer Context connects.
In the embodiment of the invention, said UE is specially: the UE that is configured to Non-Access Stratum signaling low priority NAS signaling low priority.
Said removing module 12 specifically is used for going to connect the disconnection process through initiation PDN connection and deletes the PDN connection that said Bearer Context exists.
Wherein, each module of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product is stored in the storage medium; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the sketch map of a preferred embodiment, module in the accompanying drawing or flow process might not be that embodiment of the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosedly be merely several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (10)
1.
The delet method that a kind of packet data network PDN connects is characterized in that, comprising:
When current network generation signaling congestion, the precedence information that PDN connects among the bearer context Bearer Context of network equipment acquisition user equipment (UE); The precedence information that said PDN connects connects the indication that whether has low access priority low access priority by said PDN and confirms;
The precedence information that
said network equipment connects according to PDN is deleted the PDN that exists among the said Bearer Context and is connected.
2.
The method of claim 1; It is characterized in that; Said network equipment obtains the precedence information that PDN connects among the Bearer Context of UE, and deletes the PDN that exists among the said Bearer Context according to the precedence information that PDN connects and connect, and comprising:
Said network equipment is after the session management congestion control mechanism that starts based on APN APN; The precedence information that the PDN of said APN foundation connects is used in acquisition from the Bearer Context of said UE, and deletes the PDN connection of said UE according to the precedence information that PDN connects; Perhaps,
Said network equipment is starting general Non-Access Stratum NAS level mobile management congestion control mechanism; And after the session management request message that receives from UE; If finding said session management request message is to connect in order to ask to set up the professional PDN of urgent emergency; Then from the Bearer Context of said UE, obtain the precedence information that PDN connects, and delete the PDN connection of said UE according to the precedence information that PDN connects; Perhaps,
said network equipment is starting general NAS level mobile management congestion control mechanism; And after the session management request message that receives from UE; If finding said session management request message is in order to ask to set up the PDN connection that priority is higher than low priority; Then from the Bearer Context of said UE, obtain the precedence information that PDN connects, and delete the PDN connection of said UE according to the precedence information that PDN connects.
3.
Method according to claim 1 or claim 2 is characterized in that, when there was the indication of low access priority in the PDN connection, the PDN that said PDN is connected to low access priority connected;
The precedence information that said network equipment connects according to PDN is deleted the PDN that exists among the said Bearer Context and is connected, and comprising:
When
said network equipment connected at the precedence information deletion PDN that connects according to PDN, the PDN that preferentially deletes the low access priority that exists among the said Bearer Context connected.
4.
method according to claim 1 or claim 2 is characterized in that said UE is specially: the UE that is configured to Non-Access Stratum signaling low priority NAS signaling low priority.
5.
Method according to claim 1 or claim 2 is characterized in that, the precedence information that said network equipment connects according to PDN is deleted the PDN that exists among the said Bearer Context and connected, and comprising:
said network equipment goes to connect the disconnection process through initiation PDN connection and deletes the PDN connection that exists among the said Bearer Context.
6.
The sweep equipment that a kind of packet data network PDN connects is characterized in that, comprising:
Obtain module, be used for when current network generation signaling congestion, the precedence information that PDN connects among the bearer context Bearer Context of acquisition user equipment (UE); The precedence information that said PDN connects connects the indication that whether has low access priority low access priority by said PDN and confirms;
removing module is used for deleting the PDN connection that said Bearer Context exists according to the precedence information that PDN connects.
7.
Equipment as claimed in claim 6 is characterized in that,
Said acquisition module specifically is used for after the session management congestion control mechanism that starts based on APN APN, from the Bearer Context of said UE, obtains the precedence information of the PDN connection of the said APN foundation of use; Perhaps,
Starting general Non-Access Stratum NAS level mobile management congestion control mechanism; And after the session management request message that receives from UE; If finding said session management request message is to connect in order to ask to set up the professional PDN of urgent emergency, then from the Bearer Context of said UE, obtain the precedence information that PDN connects; Perhaps,
are starting general NAS level mobile management congestion control mechanism; And after the session management request message that receives from UE; If finding said session management request message is in order to ask to set up the PDN connection that priority is higher than low priority, then from the Bearer Context of said UE, to obtain the precedence information that PDN connects.
8.
Like claim 6 or 7 described equipment, it is characterized in that when there was the indication of low access priority in the PDN connection, the PDN that said PDN is connected to low access priority connected;
said removing module specifically is used for when the precedence information deletion PDN that connects according to PDN connects, and the PDN that preferentially deletes the low access priority that exists among the said Bearer Context connects.
9.
is characterized in that like claim 6 or 7 described equipment said UE is specially: the UE that is configured to Non-Access Stratum signaling low priority NAS signaling low priority.
10.
Like claim 6 or 7 described equipment, it is characterized in that,
said removing module specifically is used for going to connect the disconnection process through initiation PDN connection and deletes the PDN connection that said Bearer Context exists.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210099132.5A CN102625475B (en) | 2012-04-06 | 2012-04-06 | The delet method that a kind of PDN connects and equipment |
| PCT/CN2013/073014 WO2013149554A1 (en) | 2012-04-06 | 2013-03-21 | Pdn connection deleting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210099132.5A CN102625475B (en) | 2012-04-06 | 2012-04-06 | The delet method that a kind of PDN connects and equipment |
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| CN102625475A true CN102625475A (en) | 2012-08-01 |
| CN102625475B CN102625475B (en) | 2015-11-25 |
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| WO (1) | WO2013149554A1 (en) |
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| WO2013149554A1 (en) * | 2012-04-06 | 2013-10-10 | 电信科学技术研究院 | Pdn connection deleting method and device |
| CN103797838A (en) * | 2013-12-31 | 2014-05-14 | 华为技术有限公司 | Method and device for processing service |
| WO2018196761A1 (en) * | 2017-04-26 | 2018-11-01 | 华为技术有限公司 | Exceptional data transmission method, apparatus and system |
| WO2021233119A1 (en) * | 2020-05-18 | 2021-11-25 | 中兴通讯股份有限公司 | Information processing method, terminal, and computer-readable storage medium |
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| WO2009040260A1 (en) * | 2007-09-28 | 2009-04-02 | Ipwireless Inc | Apparatus and method for uplink scheduling in a wireless communication system |
| CN101466083A (en) * | 2007-12-18 | 2009-06-24 | 华为技术有限公司 | Emergency call method and apparatus |
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| WO2013149554A1 (en) * | 2012-04-06 | 2013-10-10 | 电信科学技术研究院 | Pdn connection deleting method and device |
| CN103229576A (en) * | 2012-12-26 | 2013-07-31 | 华为技术有限公司 | Connection establishment method and device |
| CN103797838A (en) * | 2013-12-31 | 2014-05-14 | 华为技术有限公司 | Method and device for processing service |
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| WO2018196761A1 (en) * | 2017-04-26 | 2018-11-01 | 华为技术有限公司 | Exceptional data transmission method, apparatus and system |
| WO2021233119A1 (en) * | 2020-05-18 | 2021-11-25 | 中兴通讯股份有限公司 | Information processing method, terminal, and computer-readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102625475B (en) | 2015-11-25 |
| WO2013149554A1 (en) | 2013-10-10 |
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