CN101938847A - Method for processing traffic carrying establishment failure in long-term evolution system and device thereof - Google Patents
Method for processing traffic carrying establishment failure in long-term evolution system and device thereof Download PDFInfo
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- CN101938847A CN101938847A CN2009101085608A CN200910108560A CN101938847A CN 101938847 A CN101938847 A CN 101938847A CN 2009101085608 A CN2009101085608 A CN 2009101085608A CN 200910108560 A CN200910108560 A CN 200910108560A CN 101938847 A CN101938847 A CN 101938847A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
- H04W76/38—Connection release triggered by timers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
Abstract
The invention relates to a method for processing traffic carrying establishment failure in a long-term evolution system and a device thereof. No matter a special carrying establishment request is actively initiated by UE or by a core network, if the core network does not receive response of UE of a user, after waiting is timeout, the request is resent to wait; and a context response message of activating a special EPS carrying for the UE is not received after the request is sent for 4 times, the core network initiates a carrying release procedure to prompt the UE and eNB to release the just established EPS carrying and DRB resources (namely the special carrying which is not successfully established just by the core network is released). Therefore, the UE, the eNB and the core network resources are maintained to be consistent, and the error of inconsistent carrying of the UE, the eNB and the core network can be effectively reduced.
Description
Technical field the present invention relates to the communications field, relates in particular to the processing method and the device of service bearer foundation failure in a kind of long evolving system (LTE).
Background technology third generation affiliate (3GPP) LTE system is mainly by terminal (UE), base station (eNB) and core net (Evolved Packet Core, be EPC) form, be illustrated in figure 1 as each network element connection diagram of LTE system, between UE and eNB air wireless interface (Uu mouth), being X2 interface between the eNB, is the S1 interface between eNB and EPC.
In 3GPP LTE system, service bearer is divided into default bearing and dedicated bearer, after UE registration (attach) success, has just set up a default bearing, follow-up can need foundation by the initiation dedicated bearer according to QoS of survice (Quality of Service).Wherein, UE and core net can be initiated foundation, modification and the release of service bearer; ENB can only initiate carrying and discharge.
Service bearer is exactly EPS carrying (Evolved Packet System at UE and core net, EPSbearer), at eNB is E-RAB carrying (Evolved-Radio Access bearer), and EPS carrying, E-RAB carrying and DRB (Data Radio Bearer, Data Radio Bearer) are corresponding one by one.
In the current 3GPP LTE system, the special-purpose EPS carrying that UE initiatively initiates is set up flow process as shown in Figure 2, comprises the steps: step 201, and the user sends up direct-sending message and proposes the bearing resource request for allocation, delivers to core net EPC through base station eNB; Step 202, core net EPC handles the carrying request for allocation, step 203, core net EPC sends the E-RAB request of setting up then and gives base station eNB, comprises to activate special-purpose EPS bearer context request message, step 204, core net EPC restarts T3485; Step 205, base station are initiated RRC and are connected reprovision (comprising the special-purpose EPS bearer context request information that activates) to the user; Step 206, the user sends RRC connection reprovision and finishes message to the base station; Step 207, base station are sent E-RAB and are set up response to core net; Step 208, the user sends up direct-sending message (activating special-purpose EPS bearer context replys); Step 209, base station send up direct-sending message (activating special-purpose EPS bearer context replys); Step 210, core net stops T3485, and step 211, core net are handled the carrying assignment response again.
The special-purpose EPS carrying that core net is initiatively initiated is set up flow process as shown in Figure 3, comprise the steps, at first core net EPC sets up the carrying request for allocation, sends E-RAB foundation request (comprise and activate special-purpose EPS bearer context request message) in step 301 then and gives the base station; Step 302, base station send RRC and connect reprovision (comprise and activate special-purpose EPS bearer context request message) to the user; Step 303, the user initiates RRC connection reprovision and finishes message to the base station; Step 304, base station are sent E-RAB and are set up response to core net; Step 305, the user initiates up direct-sending message (activating special-purpose EPS bearer context replys) and to the base station, arrives core net again in step 306 then; Handle the carrying assignment response by core net.
When core net send to activate special-purpose EPS bearer context request message 203, can start T3485204, wait for the response of UE, receive that dedicated bearer is set up successfully, then stops T3485209 when activating special-purpose EPS bearer context response message 209; If do not receive when activating special-purpose EPS bearer context response message, the flow process of handling is seen shown in Figure 4, it is overtime to comprise the steps: to work as T3485, then core net can be retransmitted and activate special-purpose EPS bearer context request message (as step 403), and start T3485 (as step 404), wait-for-response once more.If this moment, wireless environment was poor, the special-purpose EPS bearer context of the activation that UE replys response message, core net is not all received, step 402 when then preceding 4 T3485 are overtime in the corresponding diagram 4,405,408,411, core net is all retransmitted and is activated special-purpose EPS bearer context request message, step 403 in the corresponding diagram 4,406,409,412, when the 5th is overtime (as step 414), the way of current techniques is that core net is abandoned this process, the resource that local release may distribute enters bearer context deexcitation (BEARER CONTEXT INACTIVE) state (as step 415).
The processing method of setting up dedicated bearer when failure recited above is incomplete: because still can not receive the response of UE after core net repeating transmission 4 times, if core net discharges resource, abandon this process, for core net, this dedicated bearer is not set up; But for UE, send and activate (as step 208) after the special-purpose EPS bearer context response message, just think that this dedicated bearer set up successfully that (activating special-purpose EPS bearer context response message might be to have lost when UE issues eNB, promptly 208 lose), the inconsistent phenomenon of dedicated bearer has just appearred in UE and core net so, follow-up UE might use this dedicated bearer to send data, will inevitably cause data to send out mistake less than the opposite end.And for UE and eNB, the DRB of this dedicated bearer correspondence has also set up, but in fact this dedicated bearer can not successfully send data, has also caused waste of radio resources.
Summary of the invention is at the defective of above-mentioned prior art, and the present invention proposes the processing method and the device of service bearer foundation failure in a kind of long evolving system, can effectively avoid the carrying of UE, eNB and core net inconsistent.
Service bearer is set up the processing method of failure in a kind of long evolving system disclosed by the invention, comprises the steps:
Described core net EPC initiates carrying and discharges flow process, notifies described user UE and base station eNB to discharge resource; Described user UE and described base station eNB discharge flow process according to described carrying and discharge EPS carrying and DRB resource.
In an embodiment disclosed by the invention, the step that described core net EPC initiates carrying release flow process further comprises:
(1) described core net EPC initiates to have the E-RAB tabulation of release and the E-RAB release command of deexcitation EPS bearer context request, gives described base station eNB;
(2) after described base station eNB is received message, discharge the DRB of E-RAB correspondence, and transmission has the DRB of release and the RRC of deexcitation EPS bearer context request connects reallocation message, gives described user UE;
(3) after described user UE receives message, this EPS carrying of deexcitation, and discharge corresponding DRB;
(4) described user UE sends the RRC reprovision and finishes message to described base station eNB, and described base station eNB receives that back time E-RAB discharges response and gives described core net EPC;
(5) described user UE sends a reply the up direct-sending message that deexcitation EPS bearer context is replied, and described base station eNB returns described up direct-sending message and gives described core net;
(6) after described core net receives that in the given time described deexcitation EPS bearer context is replied, this EPS carrying of deexcitation.
In described step (6), if described core net EPC does not receive described deexcitation EPS bearer context response message in the given time, then:
Described core net EPC retransmits deexcitation EPS bearer context request message, and waits within the predetermined time; After so repeating 4 times, local this carrying of release.
The prerequisite that described core net EPC initiates carrying release flow process is:
After described core net EPC sends the special-purpose EPS bearer context request message of activation, the response of user UE under regularly waiting for; If do not receive in the given time and activate special-purpose EPS bearer context response message, then resend and activate special-purpose EPS bearer context request message, and regularly wait for once more; So quadruplication can not receive all the time and activates special-purpose EPS bearer context response message.
At first sent up direct-sending message band bearing resource request for allocation by described user UE before whole described steps, deliver to described core net EPC through described base station eNB, described core net EPC sends and activates special-purpose EPS bearer context request message.
The invention also discloses the processing unit of service bearer foundation failure in a kind of long evolving system, comprising:
The carrying release module is used for initiating carrying release flow process and notifies user UE and base station eNB to discharge resource; Described user UE and described base station eNB discharge flow process according to described carrying and discharge EPS carrying and DRB resource.
In an embodiment disclosed by the invention, the processing unit that service bearer is set up failure can also comprise time block, is used to start timer, waits for the response of described user UE; Described carrying release module also is used to receive deexcitation EPS bearer context response message;
Described carrying release module is initiated carrying and is discharged after the flow process, and described time block starts the response that timer is waited for described user UE; If do not receive deexcitation EPS bearer context response message in the given time, then, retransmit deexcitation EPS bearer context request message, described time block starts timer once more to be waited for; After so repeating 4 times, local this carrying of release.
In an embodiment disclosed by the invention, the processing unit of service bearer foundation failure can also comprise carrying sets up module, is used for transmission special-purpose EPS bearer context request message of activation and reception and activates special-purpose EPS bearer context response message;
Described carrying is set up module and is sent the special-purpose EPS bearer context request message of activation, and described time block starts the response that timer is waited for described user UE;
If described carrying is set up module and do not received the special-purpose EPS bearer context response message of activation in the given time, then send out again and activate special-purpose EPS bearer context request message, and described time block starts the timer wait once more; Quadruplication like this.
Described processing unit disclosed by the invention is the part among the described core net EPC.
Service bearer is set up the processing method and the device of failure in a kind of long evolving system disclosed by the invention, when core net is not all received the activation EPS bearer context response message of UE in the given time, just initiate E-RAB release command (rather than the local resource that discharges), notify UE and eNB to discharge resource.After eNB and UE receive message, discharge DRB resource and EPS carrying in succession, the resource of UE, eNB and core net is consistent like this.
Description of drawings
Fig. 1 is each network element connection diagram of LTE system.
The dedicated bearer that Fig. 2 initiatively initiates for UE is set up flow chart.
The dedicated bearer that Fig. 3 initiatively initiates for core net is set up flow chart.
Fig. 4 sets up fail processing method for the carrying of prior art.
Fig. 5 sets up fail processing method for carrying of the present invention.
Fig. 6 is the processing method of deexcitation carrying failure.
Fig. 7 is the apparatus structure schematic diagram that processing bearer service of the present invention is set up failure.
Embodiment is described in further detail the present invention below in conjunction with the drawings and specific embodiments.Specific embodiment described herein is only in order to explaining the present invention, and is not used in qualification the present invention.
The objective of the invention is to introduce the processing method that a kind of dedicated bearer is set up failure, can make as much as possible that the resource of UE, eNB and core net is consistent, increase the reliability of system.The present invention has very strong operability and practicality.
Method described in the embodiment of the invention is after the core net repeating transmission activates special-purpose EPS bearer context request 4 times, if also can not receive the response of UE, initiates deexcitation EPS carrying request when then the 5th T3485 is overtime, discharges the carrying of just setting up failure.Comprise the steps: as shown in Figure 5
As mentioned above, guaranteed that in step 505～513 the EPS bearing resource of UE and core net is consistent, and the DRB resource of UE and eNB correspondence is released also.
Further consider, if core net is not received the deexcitation EPS bearer context response message that UE replys in step 512, handling process is specifically seen shown in Figure 6, when T3495 overtime, core net can be retransmitted deexcitation EPS bearer context request message, retransmits 4 times as the step 601 among Fig. 6,602,603 and 604, and the 5th T3495 is overtime, the local release of core net this carrying (as step 605) can guarantee the bearing resource unanimity like this.
Be the structural representation of the processing unit that carrying foundation is failed in long evolving system of the present invention as shown in Figure 7, comprise:
The carrying release module is used for initiating carrying release flow process and notifies user UE and base station eNB to discharge resource; User UE and base station eNB discharge flow process according to described carrying and discharge EPS carrying and DRB resource.
Time block is used to start timer, waits for the response of user UE; The carrying release module also is used to receive deexcitation EPS bearer context response message; The carrying release module is initiated carrying and is discharged after the flow process, and time block starts the response that timer is waited for described user UE; If do not receive deexcitation EPS bearer context response message in the given time, then, retransmit deexcitation EPS bearer context request message, time block starts timer once more to be waited for; After so repeating 4 times, local this carrying of release.
Module is set up in carrying, is used for sending activating special-purpose EPS bearer context request message and receiving activating special-purpose EPS bearer context response message; Carrying is set up module and is sent the special-purpose EPS bearer context request message of activation, and time block starts the response that timer is waited for described user UE; If carrying is set up module and do not received the special-purpose EPS bearer context response message of activation in the given time, then send out again and activate special-purpose EPS bearer context request message, and described time block starts the timer wait once more; Quadruplication like this.It is the part among the described core net EPC.
Prior art and embodiment of the present invention are compared, can fully give prominence to the present invention program's superiority.As shown in Figure 4, in the prior art, when dedicated bearer is set up, when if core net is not received the activation EPS bearer context response message of UE, T3485 is overtime, when core net is not all received response for 4 times when repeating transmission, just abandons this process, local this EPS bearing resource that discharges enters bearer context deexcitation (BEARER CONTEXT INACTIVE) state.But for UE, send when activating EPS bearer context response message, dedicated bearer just thinks and sets up successfully that inconsistent mistake just appears in the loaded state of UE and core net like this.
In the embodiment of the present invention, when core net is retransmitted the activation EPS bearer context response message of all not receiving UE for 4 times, when the 5th T3485 is overtime, just initiate E-RAB release command (rather than the local resource that discharges), notify UE and eNB to discharge resource.After eNB and UE receive message, discharge DRB resource and EPS carrying in succession, the resource of UE, eNB and core net is consistent like this.
Service bearer of the present invention is set up the processing method of failure, is not restricted to listed utilization in specification and the embodiment, and he can be used to various suitable the present invention's field fully.Therefore, within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. service bearer is set up the processing method of failure in the long evolving system, it is characterized in that, comprises the steps:
Described core net EPC initiates carrying and discharges flow process, notifies described user UE and base station eNB to discharge resource; Described user UE and described base station eNB discharge flow process according to described carrying and discharge EPS carrying and DRB resource.
2. as power 1 described processing method, it is characterized in that the step that described core net EPC initiates carrying release flow process further comprises:
(1) described core net EPC initiates to have the E-RAB tabulation of release and the E-RAB release command of deexcitation EPS bearer context request, gives described base station eNB;
(2) after described base station eNB is received message, discharge the DRB of E-RAB correspondence, and transmission has the DRB of release and the RRC of deexcitation EPS bearer context request connects reallocation message, gives described user UE;
(3) after described user UE receives message, this EPS carrying of deexcitation, and discharge corresponding DRB;
(4) described user UE sends the RRC reprovision and finishes message to described base station eNB, and described base station eNB receives that back time E-RAB discharges response and gives described core net EPC;
(5) described user UE sends a reply the up direct-sending message that deexcitation EPS bearer context is replied, and described base station eNB returns described up direct-sending message and gives described core net;
(6) after described core net receives that in the given time described deexcitation EPS bearer context is replied, this EPS carrying of deexcitation.
3. as power 2 described processing methods, it is characterized in that, in described step (6), if described core net EPC does not receive described deexcitation EPS bearer context response message in the given time, then:
Described core net EPC retransmits deexcitation EPS bearer context request message, and waits within the predetermined time; After so repeating 4 times, local this carrying of release.
4. as power 1,2 or 3 described processing methods, it is characterized in that the prerequisite that described core net EPC initiates carrying release flow process is:
After described core net EPC sends the special-purpose EPS bearer context request message of activation, the response of user UE under regularly waiting for; If do not receive in the given time and activate special-purpose EPS bearer context response message, then resend and activate special-purpose EPS bearer context request message, and regularly wait for once more; So quadruplication can not receive all the time and activates special-purpose EPS bearer context response message.
5. as power 4 described processing methods, it is characterized in that, comprise: before described step, at first send up direct-sending message band bearing resource request for allocation by described user UE, deliver to described core net EPC through described base station eNB, described core net EPC sends and activates special-purpose EPS bearer context request message.
6. service bearer is set up the processing unit of failure in the long evolving system, it is characterized in that, comprising:
The carrying release module is used for initiating carrying release flow process and notifies user UE and base station eNB to discharge resource; Described user UE and described base station eNB discharge flow process according to described carrying and discharge EPS carrying and DRB resource.
7. as power 6 described processing unit, it is characterized in that, also comprise time block, be used to start timer, wait for the response of described user UE; Described carrying release module also is used to receive deexcitation EPS bearer context response message;
Described carrying release module is initiated carrying and is discharged after the flow process, and described time block starts the response that timer is waited for described user UE; If do not receive deexcitation EPS bearer context response message in the given time, then, retransmit deexcitation EPS bearer context request message, described time block starts timer once more to be waited for; After so repeating 4 times, local this carrying of release.
8. as power 6 or 7 described processing unit, it is characterized in that, also comprise carrying and set up module, be used for transmission special-purpose EPS bearer context request message of activation and reception and activate special-purpose EPS bearer context response message;
Described carrying is set up module and is sent the special-purpose EPS bearer context request message of activation, and described time block starts the response that timer is waited for described user UE;
If described carrying is set up module and do not received the special-purpose EPS bearer context response message of activation in the given time, then send out again and activate special-purpose EPS bearer context request message, and described time block starts the timer wait once more; Quadruplication like this.
9. as power 8 described processing unit, it is characterized in that, is the part among the described core net EPC.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101085608A CN101938847A (en) | 2009-06-30 | 2009-06-30 | Method for processing traffic carrying establishment failure in long-term evolution system and device thereof |
| PCT/CN2010/071633 WO2010145271A1 (en) | 2009-06-30 | 2010-04-08 | Method and device for handling a failure of service bearer establishment in a long term evolution system |
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| CN2009101085608A CN101938847A (en) | 2009-06-30 | 2009-06-30 | Method for processing traffic carrying establishment failure in long-term evolution system and device thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291735A (en) * | 2011-08-04 | 2011-12-21 | 大唐移动通信设备有限公司 | Method and device for tunneling protocol (GTPC) signaling interaction of evolved packet core (EPC) network |
| CN103281795A (en) * | 2013-04-23 | 2013-09-04 | 北京创毅讯联科技股份有限公司 | Method and device for processing special bearer connection |
| WO2014106394A1 (en) * | 2013-01-04 | 2014-07-10 | 中兴通讯股份有限公司 | Method, system, base station and cluster epc for establishing group call context |
| CN106708661A (en) * | 2016-12-09 | 2017-05-24 | 浙江宇视科技有限公司 | Data backup method and device in wide area network environment |
| CN108055697A (en) * | 2016-08-30 | 2018-05-18 | 北京信威通信技术股份有限公司 | The connection management method and system of wireless heterogeneous networks |
| CN113543362A (en) * | 2020-04-14 | 2021-10-22 | 成都鼎桥通信技术有限公司 | Exception handling method and device for radio bearer establishment |
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| CN102857969B (en) * | 2011-06-28 | 2017-09-29 | 中兴通讯股份有限公司 | A kind of jamming control method and system |
| GB2502304A (en) * | 2012-05-22 | 2013-11-27 | Renesas Mobile Corp | Integrating legacy networks and E-UTRAN |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291735A (en) * | 2011-08-04 | 2011-12-21 | 大唐移动通信设备有限公司 | Method and device for tunneling protocol (GTPC) signaling interaction of evolved packet core (EPC) network |
| WO2014106394A1 (en) * | 2013-01-04 | 2014-07-10 | 中兴通讯股份有限公司 | Method, system, base station and cluster epc for establishing group call context |
| CN103281795A (en) * | 2013-04-23 | 2013-09-04 | 北京创毅讯联科技股份有限公司 | Method and device for processing special bearer connection |
| CN108055697A (en) * | 2016-08-30 | 2018-05-18 | 北京信威通信技术股份有限公司 | The connection management method and system of wireless heterogeneous networks |
| CN106708661A (en) * | 2016-12-09 | 2017-05-24 | 浙江宇视科技有限公司 | Data backup method and device in wide area network environment |
| CN106708661B (en) * | 2016-12-09 | 2020-05-19 | 浙江宇视科技有限公司 | Data backup method and device in wide area network environment |
| CN113543362A (en) * | 2020-04-14 | 2021-10-22 | 成都鼎桥通信技术有限公司 | Exception handling method and device for radio bearer establishment |
| CN113543362B (en) * | 2020-04-14 | 2023-08-25 | 成都鼎桥通信技术有限公司 | Exception handling method and device for radio bearer establishment |
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| WO2010145271A1 (en) | 2010-12-23 |
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