CN103369553A - A method for setting a back-off timer - Google Patents
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Abstract
The invention provides a method for setting a back-off timer. The method comprises that a network side receives a non access stratum signaling transmitted form user equipment, and that after determining network congestion, according to priority carried by the non access stratum signaling, the network side transmits a reject message carrying a back-off timer aimed at the priority to the user equipment. The invention also provides a network side. The method provides different back-off timers for user equipment with different priority in order to satisfy time delay demands under different priority.
Description
Technical field
The present invention relates to wireless communication technology, particularly a kind of setting retreats method and the network side of timer.
Background technology
Machine refers to all technology and the means that connect between the machine to machine (M2M, Machine to Machine) technology.The M2M theory has just occurred in the eighties of last century the nineties, but only rests on theory stage.After 2000, along with the development of mobile communication technology, realize that with mobile communication technology the networking of machinery equipment becomes possibility.Left and right sides M2M in 2002 is professional just to be occurred in market, and develops rapidly subsequently several years, becomes the focus of numerous communication equipment merchants and telecom operators.The machine quantity in the present whole world is howed a lot than people's quantity, therefore can predict the good market prospects of M2M technology.
Provide M2M communication to have the market potential prospect to studies show that the mobile network of M2M communications applications scene.But the M2M business has proposed a lot of Secretaries to system, in order to strengthen mobile network's competitiveness in this respect, is necessary existing mobile network is optimized, with more effective support M2M communication.
Existing mobile communications network designs mainly for person to person's communication, and machine is then optimized deficiency with machine, man-machine communication.In addition, how operator can provide the M2M communication service with low cost, also is the key of M2M communication deployment success.
Based on above situation, be necessary to study the solution that the mobile network supports M2M communication.Solution will be reused existing network to greatest extent, reduces impact that a large amount of M2M communication causes network and the complexity of operation maintenance.
At present telecommunication market competition is growing more intense, and rate constantly descend, and operator's profit margin constantly reduces, and is being tending towards saturated with the Communications Market on artificial basis, and M2M is brand-new opportunity to develop to operator.
In order to effectively utilize mobile network resource, third generation partner program (3GPP, 3rdGeneration Partnership Project) machine type communication (MTC has been proposed, Machine Type Communication), comprise M2M, the business that machine carries out communication to people (Machine to Man), its scope of business head and shoulders above Human To Human (H2H in the past, Human to Human) communication between, MTC is in access control, charging, fail safe, service quality (QoS, Quality of Service), the aspects such as business model and present H2H communication mode have very large difference.
3GPP evolved packet system (EPS, Evolved Packet System) comprised that wireless access network is (such as UMTS Terrestrial radio access network (UTRAN, Universal Terrestrial Radio Access Network), the UTRAN (E-UTRAN of evolution, GSM EDGE Radio Access Network network (GERAN, GSM/EDGE Radio Access Network)) and core net Evolved UTRAN).Packet-based core networks (EPC in evolution, Evolved Packet Core) in mobile management entity (MME is arranged, Mobility Management Entity), gateway (SG, Serving Gateway), the network element such as Packet Data Network (PDN) gateway (PGW, PDN Gateway); In GPRS (GPRS) core net, comprise the network elements such as Serving GPRS Support Node (SGSN, Serving GPRS Support Node); The Node B (eNB, evolved Node B) that in E-UTRAN, comprises evolution.The said system structure as shown in Figure 1.
The enormous amount of MTC subscriber equipment (subscriber equipment that namely has the MTC function), therefore may cause network congestion, for fear of network congestion, proposed to adopt the mechanism of the time that retreats among the 3GPP, comprise that session management retreats timer and mobile management retreats timer.Retreat timer and generally adopt Non-Access Stratum (Non Access Stratum, NAS) signaling by network side, in refuse information, send to UE, provided as shown in Figure 2 the schematic flow sheet of NAS signaling:
(1) based on the congestion control of APN (APN, Access Point Name) session management
When certain APN is detected congested, MME answers the Run Sessions management to retreat timer (Session Management back-off Timer), and refusal is from (the EPS Session Management of the EPS session management for this APN of UE, ESM) request message (comprise that PDN connects, bearing resource distribute or just in the resource modifying request etc.).Session Management back-off Timer among the MME is based on each UE and APN.Before MME transmission session management request message is to UE, should remove Session Management back-off Timer.
(2) produce MM (mobile management) back-off Timer, and be placed in the UE context, EPS Mobility Management (EPS Mobility Management, EMM) signaling is controlled.But should not refuse for the tracking area update (TAU, Tracking Area Updating) that is under the connection status, such as the TAU that in handoff procedure, produces.
Under general congestion scenario, MME produces and operation back-off Timer, and refusal comes the mobile management signaling request of self terminal.Except high-priority users (Service User), emergency services (Emergency Services), outside Mobile terminating call service (the Mobile Terminated Services) business, UE should not initiate other professional mobile management message.When UE received paging (Paging) message, UE should stop Mobility Management back-off Timer and can send the service request flow process.
Therefore the MTC user equipment (UE) is generally insensitive to time delay, is considered to belong to low priority UE, and some MTC uses can have normal priority, reports etc. such as real-time monitoring, fault, and common UE has increased the MTC functional module and can be used as the MTC subscriber equipment; Therefore UE can have double priority level (dual priority): low priority (low priority) and normal priority (normal priority).Find that in to the research and practice process of prior art there is following problem in prior art: at present, congestion management is adopted retreats timer, and low priority and normal priority are not distinguished, and adopts the same timer that retreats; For double priority level UE, low priority and normal priority to time delay require adopt the same demand that timer does not meet double priority level UE that retreats when different.
Summary of the invention
The technical problem to be solved in the present invention provides method and the network side that a kind of setting retreats timer, satisfies the processing demands that retreats of double priority level UE.
In order to address the above problem, the invention provides the method that a kind of setting retreats timer, comprising:
Network side is received the Non-Access Stratum signaling that subscriber equipment sends, and after the judgement network congestion, according to the priority of carrying in the described Non-Access Stratum signaling, sends refuse information to described subscriber equipment, carries the timer that retreats for described priority.
Further, said method also can have following characteristics, and the described timer that retreats that carries for described priority comprises:
When the priority of carrying in the described Non-Access Stratum signaling is low priority, carry the timer that retreats for low priority.
Further, said method also can have following characteristics, and the described timer that retreats that carries for described priority comprises:
When the priority of carrying in the described Non-Access Stratum signaling is normal priority, carry the timer that retreats for normal priority, described normal priority comprises the appointment access style.
Further, said method also can have following characteristics, and described normal priority comprises: except high priority, and other priority outside urgent call and the low priority.
Further, said method also can have following characteristics, and described network side judges according to following mode whether network is congested:
Comprising APN (APN) and network side in described Non-Access Stratum signaling, to detect described APN congested, perhaps, do not comprise in the described Non-Access Stratum signaling APN and network side detect general congested, then network congestion.
Further, said method also can have following characteristics, and described network side is mobile management entity/service universal grouping wireless business supporting node (MME/SGSN).
Further, said method also can have following characteristics, and the described numerical value that retreats timer is default value, perhaps, is set by described MME/SGSN, perhaps, is obtained from other network element by described MME/SGSN.
The present invention also provides a kind of network side, comprising:
Congested judging unit after being used for receiving the Non-Access Stratum signaling of subscriber equipment transmission, judges whether network is congested;
Response unit is used for after described congested judgment unit judges network congestion, according to the priority of carrying in the described Non-Access Stratum signaling, sends refuse information to described subscriber equipment, carries the timer that retreats for described priority.
Further, above-mentioned network side also can have following characteristics, and the timer that retreats that described response unit carries in described refuse information for described priority comprises:
When the priority of carrying in the described Non-Access Stratum signaling is low priority, in described refuse information, carry the timer that retreats for low priority.
Further, above-mentioned network side also can have following characteristics, and described response unit comprises at the described timer that retreats that carries for described priority:
When the priority of carrying in the described Non-Access Stratum signaling is normal priority, in described refuse information, carry the timer that retreats for normal priority, described normal priority comprises the appointment access style.
Further, above-mentioned network side also can have following characteristics, and described normal priority comprises: except high priority, and other priority outside urgent call and the low priority.
Further, above-mentioned network side also can have following characteristics, and described congested judging unit judges according to following mode whether network is congested:
Comprising APN and network side in described Non-Access Stratum signaling, to detect described APN congested, perhaps, do not comprise in the described Non-Access Stratum signaling APN and network side detect general congested, then network congestion.
Further, above-mentioned network side also can have following characteristics, and described network side is MME/SGSN.
Further, above-mentioned network side also can have following characteristics, and described network side is determined the described numerical value that retreats timer according to following mode: use default value, perhaps, set by described MME/SGSN, perhaps, obtained from other network element by described MME/SGSN.
The method that the embodiment of the invention provides is set the different timers that retreats for different priorities, satisfies the time delay demand under the different priorities.
Description of drawings
Fig. 1 is the system architecture schematic diagram under the non-roaming scene among the prior art 3GPP;
Fig. 2 is NAS signalling diagram in the prior art;
Fig. 3 is that setting of the present invention retreats the timer schematic flow sheet;
Fig. 4 is that the embodiment of the invention one setting retreats the timer schematic diagram;
Fig. 5 is that the embodiment of the invention two settings retreat the timer schematic diagram;
Fig. 6 is the system configuration schematic diagram that embodiment of the invention setting retreats timer;
Fig. 7 is embodiment of the invention network side block diagram.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing embodiments of the invention are elaborated.Need to prove, in the situation that do not conflict, the embodiment among the application and the feature among the embodiment be combination in any mutually.
The embodiment of the invention provides a kind of setting to retreat the method for timer, comprising:
Network side is received the Non-Access Stratum signaling that subscriber equipment sends, and after the judgement network congestion, according to the priority of carrying in the described Non-Access Stratum signaling, sends refuse information to described subscriber equipment, carries the timer that retreats for described priority.
Wherein, the described timer that retreats that carries for described priority comprises:
When the priority of carrying in the described Non-Access Stratum signaling is low priority, carry the timer that retreats for low priority.
Perhaps, when the priority of carrying in the described Non-Access Stratum signaling is normal priority, carry the timer that retreats for normal priority, described normal priority comprises the appointment access style.
Described normal priority refers to: except high priority, be 11-15 such as access style, and other priority outside urgent call and the low priority.Described normal priority can adopt existing type of call or define new type of call sign.
Wherein, described Non-Access Stratum signaling is mobile management signaling or session management signaling;
Described for described priority retreat timer refer to the signaling type with described Non-Access Stratum signaling for described priority corresponding retreat timer.
Wherein, described network side judges according to following mode whether network is congested:
Comprising APN and network side in described Non-Access Stratum signaling, to detect described APN congested, perhaps, do not comprise in the described Non-Access Stratum signaling APN and network side detect general congested, then network congestion.
Wherein, described network side is MME/SGSN.Wherein, the described numerical value that retreats timer is default value, perhaps, is set by described MME/SGSN, perhaps, is obtained from other network element by described MME/SGSN.
The setting that the embodiment of the invention provides retreats the method for timer, as shown in Figure 3, comprising:
Step 101, UE sends signaling to network side.
UE can be the double priority level, also can be multipriority more, such as 3 priority; Possess two priority with UE in the present embodiment and describe, but the invention is not restricted to this.In addition, the present invention also can be applied in the situation that UE only has a priority.
Described signaling is the NAS signaling, and is namely irrelevant with wireless access technology, is independent of wireless access relevant function and flow process, comprises mobile management signaling and session management signaling;
Described network side refers to: MME or SGSN;
Comprise the priority indication information in the described signaling, such as low priority or normal priority.
Step 102, network side judges whether congested, if so, turns to step 103, otherwise turns to step 106.
The described congested core network congestion that refers to comprises that specific APN is congested and general congested;
Described congested can be that the MME/SGSN active detecting arrives, or the Indication message by other network elements obtains.
Step 103, the priority of carrying in the signaling is received in the network side judgement, if low priority turns to step 104, otherwise turns to step 105.
Step 104, network side sends refuse information to UE, and comprises the timer that retreats for low priority in message, and flow process finishes.
The described timer that retreats for low priority is determined by network side MME/SGSN, and notify UE in refuse information;
The described numerical value that retreats timer can be default, or the MME/SGSN setting, or receive from other network elements;
Described network side such as mobile management or session management signaling, is selected corresponding timer according to the signaling type of described UE.
It is to be noted: described network side can be packet-switched domain (PS, Packet-Switched) or circuit commutative field (CS, Circuit-Switched), and network side is selected different timers according to different territories.
Step 105, network side sends refuse information to UE, and comprises the timer that retreats for normal priority in message, and flow process finishes.
The described timer that retreats for normal priority is determined by network side MME/SGSN, and notify UE in refuse information;
The described numerical value that retreats timer can be default, or the MME/SGSN setting, or receive from other network elements.
Described network side such as mobile management or session management signaling, is selected corresponding timer according to the signaling type of described UE.
It is to be noted: described network side can be packet-switched domain (PS, Packet-Switched) or circuit commutative field (CS, Circuit-Switched), and network side is selected different timers according to different territories.
Step 106, network side send to UE and accept message, and flow process finishes.
Described network side is accepted the signaling request of UE, and described UE proceeds to communicate by letter with described network side.
Described network side can not have congested or relieve congestion after, send to UE and to accept signaling.
Below by specific embodiment such scheme is described in detail:
Embodiment one
The scene of the present embodiment is: UE sends the mobile management signaling to network side, as shown in Figure 4, may further comprise the steps:
Step 201, UE sends the mobile management signaling to network side.
It is following one or a combination set of that described mobile management signaling comprises: adhere to (attach), TAU/RAU/LAU, service request (service request);
Can comprise APN in the described signaling or not comprise APN information.
Step 202, whether network side is congested, if so, turns to step 203, otherwise turns to step 206.
Described network side is core net, comprises following at least a: MME/SGSN, Serving-GW (gateway), P-GW (PDN-GateWay, packet data network gateway).
Described congested comprising: APN is congested and general congested;
If the signaling that UE sends comprises APN, and network side to detect APN congested, then turn to step 203;
If the signaling that UE sends does not comprise APN, network side detects congested, and is namely general congested, then turns to step 203;
Network side detects APN if the signaling that UE sends comprises APN does not have congestedly, then turns to step 206;
Step 203, whether described signaling is low priority, if so, turns to step 204, otherwise turns to step 205.
Step 204, network side sends refuse information to UE, and comprises the timer that retreats for low priority in message.
After described UE receives refuse information, retreating (before retreating timer expiry) in the time of timer, unless high priority, urgency traffic, called service, UE should not initiated other professional mobile management signalings;
When UE received beep-page message, UE should stop Mobility Management back-off Timer and can send the service request flow process;
When certain APN is carried out congestion control, MME store M obility Management back-off Timer, and refusal is from the mobile management flow process of UE to this APN.If contain the context (Context) of UE among the MME, MME can be to each UE storage back-off Timer.When back-off Timer moves, UE will can not initiate the NAS signaling of any mobile management flow process for this APN;
Mobility Management back-off Timer should not affect Cell/RAT and PLMN switches.When Cell/RAT and TA switched, Mobility Management back-off Timer should not stop.Only when new PLMN was not equivalent PLMN (EPLMN, Equivalent PLMN), back-off Timer just stopped.
Under connection mode, MME should not refuse TAU, and under idle pulley, MME can refuse TAU, and comprises back-off Timer in refuse information.
If the Mobility Management back-off Timer time surpasses UE cycle T AU+Implicit Detach Timer (implicit expression attachment removal timer), MME should adjust terminal access time and Implicit Detach Timer, be used for guaranteeing MME at back-off Timer in running time, MME can Implicit Detach (implicit expression attachment removal) terminal.
The described timer that retreats is relevant with PS or the CS territory of UE request, namely for different territories different timers is arranged.
Step 205, network side sends refuse information to UE, and comprises the timer that retreats for normal priority in message.
After described UE receives refuse information, retreating (before retreating timer expiry) in the time of timer, unless high priority, urgency traffic, called service, UE should not initiated other professional mobile management signalings;
When UE received beep-page message, UE should stop Mobility Management back-off Timer and can send the service request flow process;
When certain APN is carried out congestion control, MME store M obility Management back-off Timer, and refusal is from the mobile management flow process of UE to this APN.If contain the Context of UE among the MME, MME can be to each UE storage back-off Timer.When back-off Timer moves, UE will can not initiate the NAS signaling of any mobile management flow process for this APN;
Mobility Management back-off Timer should not affect Cell/RAT and PLMN switches.When Cell/RAT and TA switched, Mobility Management back-off Timer should not stop.Only when new PLMN was not equivalent PLMN (EPLMN, Equivalent PLMN), back-off Timer just stopped.
Under connection mode, MME should not refuse TAU, and under idle pulley, MME can refuse TAU, and comprises back-off Timer in refuse information.
If the Mobility Management back-off Timer time surpasses UE cycle T AU+Implicit Detach Timer, MME should adjust terminal access time and Implicit Detach Timer, be used for guaranteeing MME at back-off Timer in running time, MME can Implicit Detach terminal.
The described timer that retreats is relevant with PS or the CS territory of UE request, namely for different territories different timers is arranged.
Step 206, network side send to UE and accept message, and flow process finishes.
Embodiment two
The scene of the present embodiment is: UE sends the session management signaling to network side, as shown in Figure 5, may further comprise the steps:
Step 301, UE sends the session management signaling to network side.
Described session management signaling comprises, and: PDN connects, and bearing resource distributes or just in the resource modifying request etc.;
Described session management signaling namely comprises APN information for APN in the signaling.
Step 302, whether network side is congested, if so, turns to step 303, otherwise turns to step 306.
Described network side is core net, comprises following at least a: MME/SGSN, Serving-GW (gateway), P-GW (PDN-GateWay, packet data network gateway).
When certain APN is detected congested, MME/SGSN should move Session Management back-off Timer, and refusal from the conversation request message for this APN of UE (comprise that PDN connects, bearing resource distribute or just in the resource modifying request etc.);
Session Management back-off Timer among the MME/SGSN is based on each UE and APN;
Before MME/SGSN transmission Session management request message is to UE, should remove Session Management back-off Timer.
Step 303, whether described signaling is low priority, if so, turns to step 304, otherwise turns to step 305.
Step 304, network side sends refuse information to UE, and comprises the timer that retreats for low priority in message.
When obtain Session Management back-off Timer from EPS session management refuse information after, UE should take following measures:
If be with known APN in refuse information, then UE will can not initiate this APN service management flow.
If be not with APN in refuse information, then UE will can not initiate not to be with the service management flow of APN.
When Cell/TA/PLMN/RAT switched, Session Management back-off Timer continued operation.
When Session Management back-off Timer moved, UE allowed to initiate Service User, urgency traffic, Mobile Terminated Services.
If UE receives the initial EPS Session management request message to congested APN of network, UE should stop Session Management back-off Timer.
During Session Management back-off Timer operation, UE can initiate the PDN demolishing process.
UE should support each APN that UE is activated to distribute Session Management back-off Timer is set.
The described timer that retreats is relevant with PS or the CS territory of UE request, namely for different territories different timers is arranged.
Step 305, network side sends refuse information to UE, and comprises the timer that retreats for normal priority in message.
When obtain Session Management back-off Timer from EPS session management refuse information after, UE should take following measures:
If be with known APN in refuse information, then UE will can not initiate this APN service management flow.
If be not with APN in refuse information, then UE will can not initiate not to be with the service management flow of APN.
When Cell/TA/PLMN/RAT switched, Session Management back-off Timer continued operation.
When Session Management back-off Timer moved, UE allowed to initiate Service User, urgency traffic, Mobile Terminated Services.
If UE receives the initial EPS Session management request message to congested APN of network, UE should stop Session Management back-off Timer.
During Session Management back-off Timer operation, UE can initiate the PDN demolishing process.
UE should support each APN that UE activates is arranged respectively Session Management back-off Timer.
The described timer that retreats is relevant with PS or the CS territory of UE request, namely for different territories different timers is arranged.
Step 306, network side send to UE and accept message, and flow process finishes.
In order to realize said method, the invention allows for the system that a kind of setting retreats timer, as shown in Figure 6, comprising: MME/SGSN, eNB, UE, wherein:
MME/SGSN is used for receiving the Non-Access Stratum signaling of UE transmission, after the judgement network congestion, according to the priority of carrying in the described Non-Access Stratum signaling, sends refuse information to described UE, carries the timer that retreats for described priority; Also be used for when Cell/TA/PLMN/RAT switches, keeping back-off Timer to continue operation; Also be used for not having congested or network congestion sends to UE after removing and accepts message; Also be used for adjusting according to the size that retreats timer the numerical value of other relevant timers;
ENB is used for transmitting the NAS signaling between MME/SGSN and UE;
UE is used for sending the NAS signaling and accepting the response message that MME/SGSN returns to MME/SGSN, and described response message is for accepting message or refuse information; Preserve the timer that retreats that carries in the refuse information; Also be used for when retreating the timer operation, unless high priority, urgency traffic or called service can not be initiated other service request to network side; Also be used for when Cell/TA/PLMN/RAT switches, keeping back-off Timer to continue operation;
The embodiment of the invention also provides a kind of network side, as shown in Figure 7, comprising:
Congested judging unit after being used for receiving the Non-Access Stratum signaling of subscriber equipment transmission, judges whether network is congested;
Response unit is used for after described congested judgment unit judges network congestion, according to the priority of carrying in the described Non-Access Stratum signaling, sends refuse information to described subscriber equipment, carries the timer that retreats for described priority.
Wherein, the timer that retreats that carries in described refuse information for described priority of described response unit comprises:
When the priority of carrying in the described Non-Access Stratum signaling is low priority, in described refuse information, carry the timer that retreats for low priority;
Perhaps,
When the priority of carrying in the described Non-Access Stratum signaling is normal priority, in described refuse information, carry the timer that retreats for normal priority, described normal priority comprises the appointment access style.
Wherein, described normal priority comprises: except high priority, and other priority outside urgent call and the low priority.
Wherein, described congested judging unit judges according to following mode whether network is congested:
Comprising APN and network side in described Non-Access Stratum signaling, to detect described APN congested, perhaps, do not comprise in the described Non-Access Stratum signaling APN and network side detect general congested, then network congestion.
Wherein, described network side is MME/SGSN.
Wherein, described network side is determined the described numerical value that retreats timer according to following mode: use default value, perhaps, set by described MME/SGSN, perhaps, obtained from other network element by described MME/SGSN.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.
One of ordinary skill in the art will appreciate that all or part of step in the said method can come the instruction related hardware to finish by program, described program can be stored in the computer-readable recording medium, such as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Claims (14)
1. a setting retreats the method for timer, it is characterized in that, comprising:
Network side is received the Non-Access Stratum signaling that subscriber equipment sends, and after the judgement network congestion, according to the priority of carrying in the described Non-Access Stratum signaling, sends refuse information to described subscriber equipment, carries the timer that retreats for described priority.
2. the method for claim 1 is characterized in that, the described timer that retreats that carries for described priority comprises:
When the priority of carrying in the described Non-Access Stratum signaling is low priority, carry the timer that retreats for low priority.
3. the method for claim 1 is characterized in that, the described timer that retreats that carries for described priority comprises:
When the priority of carrying in the described Non-Access Stratum signaling is normal priority, carry the timer that retreats for normal priority, described normal priority comprises the appointment access style.
4. method as claimed in claim 3 is characterized in that, described normal priority comprises: except high priority, and other priority outside urgent call and the low priority.
5. the method for claim 1 is characterized in that, described network side judges according to following mode whether network is congested:
Comprising APN (APN) and network side in described Non-Access Stratum signaling, to detect described APN congested, perhaps, do not comprise in the described Non-Access Stratum signaling APN and network side detect general congested, then network congestion.
6. such as the arbitrary described method of claim 1 to 5, it is characterized in that, described network side is mobile management entity/service universal grouping wireless business supporting node (MME/SGSN).
7. method as claimed in claim 6 is characterized in that, the described numerical value that retreats timer is default value, perhaps, is set by described MME/SGSN, perhaps, is obtained from other network element by described MME/SGSN.
8. a network side is characterized in that, comprising:
Congested judging unit after being used for receiving the Non-Access Stratum signaling of subscriber equipment transmission, judges whether network is congested;
Response unit is used for after described congested judgment unit judges network congestion, according to the priority of carrying in the described Non-Access Stratum signaling, sends refuse information to described subscriber equipment, carries the timer that retreats for described priority.
9. network side as claimed in claim 8 is characterized in that, the timer that retreats that described response unit carries in described refuse information for described priority comprises:
When the priority of carrying in the described Non-Access Stratum signaling is low priority, in described refuse information, carry the timer that retreats for low priority.
10. network side as claimed in claim 8 is characterized in that, described response unit comprises at the described timer that retreats that carries for described priority:
When the priority of carrying in the described Non-Access Stratum signaling is normal priority, in described refuse information, carry the timer that retreats for normal priority, described normal priority comprises the appointment access style.
11. network side as claimed in claim 10 is characterized in that, described normal priority comprises: except high priority, and other priority outside urgent call and the low priority.
12. network side as claimed in claim 8 is characterized in that, described congested judging unit judges according to following mode whether network is congested:
Comprising APN and network side in described Non-Access Stratum signaling, to detect described APN congested, perhaps, do not comprise in the described Non-Access Stratum signaling APN and network side detect general congested, then network congestion.
13. such as the arbitrary described network side of claim 8 to 12, it is characterized in that, described network side is MME/SGSN.
14. network side as claimed in claim 13 is characterized in that, described network side is determined the described numerical value that retreats timer according to following mode: use default value, perhaps, set by described MME/SGSN, perhaps, obtained from other network element by described MME/SGSN.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100906695A CN103369553A (en) | 2012-03-30 | 2012-03-30 | A method for setting a back-off timer |
| PCT/CN2012/075869 WO2013143219A1 (en) | 2012-03-30 | 2012-05-22 | Method for setting backoff timer, and network side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100906695A CN103369553A (en) | 2012-03-30 | 2012-03-30 | A method for setting a back-off timer |
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| Publication Number | Publication Date |
|---|---|
| CN103369553A true CN103369553A (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100906695A Pending CN103369553A (en) | 2012-03-30 | 2012-03-30 | A method for setting a back-off timer |
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| Country | Link |
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| CN (1) | CN103369553A (en) |
| WO (1) | WO2013143219A1 (en) |
Cited By (1)
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| CN114666851A (en) * | 2020-12-22 | 2022-06-24 | 展讯半导体(南京)有限公司 | Roaming network selection method, system, electronic device and storage medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017170122A1 (en) * | 2016-04-01 | 2017-10-05 | Nec Corporation | LOAD CONTROL FROM CONTROL PLANE CIoT EPS OPTIMISATION |
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