CN102215569B - Circuit domain dropping CSFB flow process Notification Method and device - Google Patents
Circuit domain dropping CSFB flow process Notification Method and device Download PDFInfo
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Abstract
The invention discloses a kind of CSFB flow process Notification Method, comprising: receive the initial context carrying CSFB instruction and set up request message; Reply the failure of establishing initial context message of carrying content and comprising CSFB cell.The invention also discloses another kind of CSFB flow process Notification Method, comprising: receiving package is containing the service request information of CSFB instruction; Send the initial context carrying CSFB instruction to base station and set up request message; Receive the failure of establishing initial context message of carrying content and comprising CSFB cell, and retain user's context.The invention also discloses the device corresponding with preceding method.In method and apparatus provided by the invention, E-RAB, after the instruction receiving CSFB, need not be set up in base station, thus can reduce the time delay of CSFB, it also avoid the waste of the system resource that may bring; Can also E-RAB in failure of establishing initial context message be avoided? ID is the conflict must filling out cell.
Description
Technical field
The present invention relates to the communications field, particularly circuit domain dropping CSFB flow process Notification Method and device.
Background technology
CSFB (CircuitSwitchedFallBack, circuit domain dropping) be a kind of at LTE (LongTermEvolution, Long Term Evolution) use in system coverage area other RAN (RadioAccessNetwork Radio Access Network) to support CS territory (CircuitSwitchedDomain, circuit domain) technology conversed, CSFB flow process can make the CS business of user, such as speech business, all transfer to the access network of relatively low bandwidth, such as GSM, WCDMA etc., thus the bandwidth resources that operator can be saved.Applicant is realizing finding in process of the present invention: in the CSFB flow process of prior art, when replying initial context and setting up response InitialContextSetupResponse message, an E-RAB (Enhanced-RadioAccessBearID established at least must be carried in message, strengthen RAB) mark ID, if now base station eNodeB returns INITIALCONTEXTSETUPRESPONSE message after waiting for and successfully establishing E-RAB again, cause the time delay of CSFB, and cause the flow process waste resource setting up E-RAB; If just return INITIALCONTEXTSETUPRESPONSE message after etc. not establishing E-RAB, then cannot fill in E-RABID wherein.
Summary of the invention
Embodiments provide a kind of circuit domain dropping CSFB flow process Notification Method, comprising:
Receive initial context and set up request message, in described message, carry CSFB instruction;
Reply failure of establishing initial context message, in described failure of establishing initial context message, carry the cell that content comprises CSFB.
Another embodiment of the present invention provides another kind of circuit domain dropping CSFB flow process Notification Method, comprising:
Receiving package is containing the service request information of CSFB instruction;
Send the initial context carrying CSFB instruction to base station and set up request message;
Receive the failure of establishing initial context InitialContextSetupFail message of carrying content and comprising CSFB cell, and retain user's context.
Another embodiment of the present invention additionally provides a kind of circuit domain dropping CSFB flow process notifying device, comprising:
Initial context sets up request receiving module 310, sets up request message for receiving the initial context carrying CSFB instruction;
Failure of establishing initial context replys module 320, for replying failure of establishing initial context message, and carries the cell that content comprises CSFB within the message.
Another embodiment of the present invention provides another kind of circuit domain dropping CSFB flow process notifying device, comprising: service request reception module 410, for the service request information of receiving package containing CSFB instruction;
Initial context sets up request message sending module 420, sets up request message for sending the initial context carrying CSFB instruction to base station;
Failure of establishing initial context message reception module 430, for receiving the failure of establishing initial context message also continuation reservation user's context carrying content and comprise CSFB cell.
In the method and apparatus that the embodiment of the present invention provides, E-RAB, after the instruction receiving CSFB, need not be set up in base station, thus can reduce the time delay of CSFB, it also avoid and sets up E-RAB but the waste just switching at once or discharge the system resource that may bring; On the other hand by carrying the cell notice MME of CSFB in InitialContextSetupFail message, E-RABID in InitialContextSetupResponse message can be avoided to be the conflict must filling out cell.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the embodiment of the present invention;
Fig. 2 is the method flow diagram of another embodiment of the present invention;
Fig. 3 is the device schematic diagram of the embodiment of the present invention;
Fig. 4 is the device schematic diagram of another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention one provides a kind of circuit domain dropping CSFB flow process Notification Method, comprising:
S110, receives initial context and sets up request InitialContextSetupRequest message, carry CSFB instruction in described message
After user equipment (UE) receives CS paging CSPaging message, if judge it is paging oneself, then can by base station eNodeB and MME (MobileManagementEntity, mobile management entity) establish the link, and send service request ServiceRequest message by this link to MME, comprise CSFB instruction in the message, i.e. CSfallbackindication, eNodeB can be indicated to set up initial context after MME receives ServiceRequest message, CSfallbackindication is indicated in the InitialContextSetupRequest message sent to eNodeB, eNodeB receives the initial context carrying described CSFB instruction and sets up request message.
S120, replys failure of establishing initial context InitialContextSetupFail message, carries the cell that content comprises CSFB in message
After eNodeB receives InitialContextSetupRequest message, reply InitialContextSetupFail message, the cell of message comprises CSFB, thus can notify that MMEeNodeB is starting CSFB flow process.MME can not think failure of establishing initial context after receiving the InitialContextSetupFail message carrying above special cell, but continues to retain user at the context of core net, waits for follow-up CSFB flow process.
In embodiments of the invention, in InitialContextSetupFail message, carry the mode that content comprises CSFB cell can have multiple, such as, can in the S1AP protocol message of existing S1 interface (interface between eNodeB and core net MME), such as, Cause cell in InitialContextSetupFail message increases enumerated value CSFBactivity newly, specifically as shown in table 1:
| IE/Group Name | Presence | Rang e | IE Type and Reference | Semantics Descriptio n |
| CHOICE Cause Group | M | |||
| ＞Radio Network Layer | ||||
| ＞＞Radio Network Layer Cause | M | ENUMERATED (Unspecified， TX2 RELOCOverall Expiry， Successful Handover， Release due to E-UTRAN Generated Reason， Handover Cancelled，Partial Handover，Handover Failure In Target EPC/eNB Or Target System， Handover Target not allowed， TS1 RELOCoverall Expiry， TS1 RELOCprep Expiry， Cell not available，， Unknown Target ID， No Radio Resources Available in Target Cell，Unknown or already allocated MME UE S1AP ID， Unknown or already allocated eNB UE S1AP ID， Unknown or inconsistent pair of UE S1AP ID，Handover desirable for radio reasons， Time critical handover， Resource optimisation handover， Reduce load in serving cell，User inactivity， Radio Connection With UE Lost，Load Balancing TAU Required，CS Fallback Triggered， UE Not Available For PS Service，Radio resources not available， Failure in the Radio Interface Procedure， Invalid QoS combination，Inter-RAT redirection， Interaction with other procedure，Unknown E-RAB ID， Multiple E-RAB ID instances，Encryption and/or integrity protection algorithms not supported，S1 intra system Handover triggered，S1 inter system Handover triggered， X2 Handover triggered ...， Redirection towards 1xRTT， Not supported QCI value， invalid CSG Id) | ||
| ＞Transport Layer | ||||
| ＞＞Transport Layer Cause | M | ENUMERATED (Transport Resource Unavailable， Unspecified， ...) | ||
| ＞NAS | ||||
| ＞＞NAS Cause | M | ENUMERATED(Normal Release， Authentication failure， Detach， Unspecified， ...，CSFB activity，) | ||
| ＞Protocol | ||||
| ＞＞Protocol Cause | M | ENUMERATED (Transfer Syntax Error， Abstract Syntax Error(Rejact)， Abstract Syntax Error(lgnore and Notify)， Message not Compatible with Receiver State， Semantic Error， Abstract Syntax Error(Falsely Constructed Message)， Unspecified，...) | ||
| ＞Misc | ||||
| ＞＞Miscellan eous Cause | M | ENUMERATED (Control Processing Overload，Not enough User Plane Processing Resources， Hardware Failure， |
| O&M Intervention，Unspecified，Unknown PLMN，...) |
Table 1
Or can also at the S1AP protocol message of S1 interface, such as, in InitialContextSetupFail message newly-increased cell CSFallbackIndicator, specifically as shown in table 2:
| IE/Group Name | Presence | Range | IE type and reference | Semantics description | Criticality | Assigned Criticality |
| Message Type | M | 9.2.1.1 | YES | reject | ||
| MME UE S1AP ID | M | 9.2.3.3 | YES | ignore | ||
| eNB UE S1AP ID | M | 9.2.3.4 | YES | ignore | ||
| Cause | M | 9.2.1.3 | YES | ignore | ||
| Criticality Diagnostics | O | 9.2.1.21 | YES | ignore | ||
| CS Fallback Indicator | O | - | YES | ignore |
Table 2
Certainly, the present invention is not limited to above-mentioned two kinds of alter modes, the instruction of CSFB cell is also not limited to these two kinds of forms of CSFBactivity or CSFallbackIndicator, this cell other cells can also be carried in other positions, as long as can represent that eNodeB is starting CSFB flow process in existing message structure.
In the present embodiment, eNodeB, after the instruction receiving CSFB, need not set up E-RAB, thus can reduce the time delay of CSFB, it also avoid and sets up E-RAB but the waste just switching at once or discharge the system resource that may bring; On the other hand by carrying the cell notice MME of CSFB in InitialContextSetupFail message, E-RABID in InitialContextSetupResponse message can be avoided to be the conflict must filling out cell.The method that the present embodiment provides can realize in base station side.
In the circuit domain dropping CSFB flow process Notification Method that another embodiment of the present invention provides, as a kind of additional project, can also comprise after S120:
S130, initiates to switch, UE is switched to target access system
ENodeB directly can initiate intersystem handover after replying InitialContextSetupFail message, and UE is switched to target access system, and such as GSM or WCDMA etc., UE again can access in target access system, and set up voice link.It is to be noted, for the circuit domain dropping CSFB flow process Notification Method that the embodiment of the present invention provides, this step non-vital step, those skilled in the art also can expect the executive mode or the implementation that there are other, do not form for restriction of the present invention.
Another embodiment of the present invention provides another kind of circuit domain dropping CSFB flow process Notification Method, comprising:
S210, receiving package is containing the service request ServiceRequest message of CSFB instruction
After UE receives beep-page message, judge if paging oneself, then can be established the link by eNodeB and MME, and send ServiceRequest message by link to MME, comprise CSfallbackindication in the message, MME receives this and comprises the service request information that CSFB indicates CSFBindication.
S220, sends the initial context carrying CSFB instruction and sets up request message to base station
MME receives the service request information comprising CSFB instruction successively can set up initial context by InitialContextSetupRequest message instruction eNodeB, and indicates CSfallbackindication in this InitialContextSetupRequest message.
S230, receives the failure of establishing initial context InitialContextSetupFail message of carrying content and comprising CSFB cell, continues to retain user's context
After eNodeB receives InitialContextSetupRequest message, reply InitialContextSetupFail message, the cell that content comprises CSFB is carried in message, the mode of carrying CSFB cell in message can have multiple, such as can with reference to other modes mentioned in several mode enumerated in S120 and S120.MME receives after this carries the InitialContextSetupFail message of special cell, can know that eNodeB side is starting CSFB flow process, thus continue to retain the context of user in core-network side, and does not think failure of establishing initial context.The method that the present embodiment provides can in core net, and such as MME side realizes.
In the circuit domain dropping CSFB flow process Notification Method that another embodiment of the present invention provides, can also comprise before S210:
S206, receives CSPaging message
The MSC (MobileSwitchingCenter, mobile switching centre) of core-network side notifies that MME has the beep-page message CSPaging in CS territory, and MME receives this CSPaging message
S208, broadcasts this CS beep-page message to UE
MME can broadcast this CS beep-page message by base station to UE after reception CS beep-page message.
It is to be noted, these two steps are not the circuit domain dropping CSFB flow process Notification Method non-vital step that the embodiment of the present invention provides, those skilled in the art also can expect the executive mode or the implementation that there are other, do not form for restriction of the present invention.
Another embodiment of the present invention provides a kind of circuit domain dropping CSFB flow process notifying device, comprising:
Initial context sets up request receiving module 310, sets up request message InitialContextSetupRequest for receiving the initial context carrying CSFB instruction
After user equipment (UE) receives CS paging CSPaging message, if judge it is paging oneself, then can by base station eNodeB and MME (MobileManagementEntity, mobile management entity) establish the link, and send service request ServiceRequest message by this link to MME, comprise CSFB instruction in the message, i.e. CSfallbackindication, InitialContextSetupRequest message can be sent to base station side after MME receives ServiceRequest message, CSfallbackindication is indicated in this message, initial context set up request receiving module 310 receive carry described CSFB indicate initial context set up request message.
Failure of establishing initial context replys module 320, set up request receiving module 410 with described initial context to be connected, for replying failure of establishing initial context InitialContextSetupFail message, and carry the cell that content comprises CSFB within the message.
Base station side is after receiving InitialContextSetupRequest message, failure of establishing initial context is replied module 320 and is replied InitialContextSetupFail message, and carry the cell that content comprises CSFB within the message, thus can notify that MMEeNodeB is starting CSFB flow process.Failure of establishing initial context is replied module 320 and is carried the mode that content comprises the cell of CSFB and can have multiple, such as can with reference to other modes mentioned in several mode enumerated in S120 and S120, corresponding, the failure of establishing initial context mentioned at the present embodiment is replied in module 320, also the performance element corresponding with other modes mentioned in several mode enumerated in described S120 or S120 can be comprised, such as, enumerated value CSFBactivity increases unit or CSFallbackIndicator increase unit etc.
In the present embodiment, base station side, after the instruction receiving CSFB, need not set up E-RAB, thus can reduce the time delay of CSFB, it also avoid and sets up E-RAB but the waste just switching at once or discharge the system resource that may bring; On the other hand by carrying the cell notice MME of CSFB in InitialContextSetupFail message, E-RABID in InitialContextSetupResponse message can be avoided to be the conflict must filling out cell.
In the circuit domain dropping CSFB flow process notifying device that another embodiment of the present invention provides, can also comprising: switch initiation module 330, reply module 320 with failure of establishing initial context and be connected, switching for initiating
Base station side switches initiation module 330 after replying InitialContextSetupFail message directly can initiate intersystem handover, UE is switched to target access system, such as GSM, WCDMA etc.UE again can access in target access system, and sets up voice link.
The circuit domain dropping CSFB flow process notifying device that the present embodiment provides is arranged at base station side, both can be embedded in base station, also can be device independent of base station and is connected with base station.
Another embodiment of the present invention provides a kind of circuit domain dropping CSFB flow process notifying device, comprising:
Service request reception module 410, for the service request ServiceRequest message of receiving package containing CSFB instruction
After UE receives beep-page message, judge if paging oneself, then can be established the link by eNodeB and core-network side, and send service request ServiceRequest message by link to core-network side, comprise CSfallbackindication in the message, service request reception module 410 receives this and comprises the service request information that CSFB indicates CSFBindication.
Initial context sets up request message sending module 420, is connected with service request reception module 410, sets up request message for sending the initial context carrying CSFB instruction to base station
Core-network side receives the service request information priority comprising CSFB instruction, initial context sets up request message sending module 420 can set up initial context by InitialContextSetupRequest message instruction eNodeB, and indicates CSfallbackindication in this InitialContextSetupRequest message.
Failure of establishing initial context message reception module 430, set up request message sending module 420 with initial context to be connected, for receiving the failure of establishing initial context InitialContextSetupFail message also continuation reservation user's context carrying content and comprise CSFB cell
After eNodeB receives InitialContextSetupRequest message, reply InitialContextSetupFail message, the cell that content comprises CSFB is carried in message, the mode of carrying CSFB cell in message can have multiple, such as can with reference to other modes mentioned in several mode enumerated in S120 and S120.Failure of establishing initial context message reception module 430 receives after this carries the InitialContextSetupFail message of special cell, can know that eNodeB side is starting CSFB flow process, thus continue to retain user at the context of core-network side, and do not think failure of establishing initial context.
In the circuit domain dropping CSFB flow process notifying device that another embodiment of the present invention provides, described device can also comprise:
Beep-page message receiver module 406, is connected with beep-page message broadcast module 408, for receiving CS territory beep-page message
The MSC (MobileSwitchingCenter, mobile switching centre) of core-network side notifies that MME has the beep-page message CSPaging in CS territory, and beep-page message receiver module 406 receives this CSPaging message.
Beep-page message broadcast module 408, is connected with service request reception module 410, for broadcasting described CS beep-page message to UE
After beep-page message receiver module 406 receives this CSPaging message, beep-page message broadcast module 408 can broadcast this CS beep-page message by base station to UE.
The circuit domain dropping CSFB flow process notifying device that the present embodiment provides is arranged at core-network side, both can be embedded in MME, also can be device independent of MME and is connected with MME
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, described program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a circuit domain dropping CSFB flow process Notification Method, is characterized in that, comprising:
Receive initial context and set up request message, in described message, carry CSFB instruction;
Reply failure of establishing initial context message, carry the cell that content comprises CSFB in described failure of establishing initial context message, described cell represents that base station eNodeB is starting CSFB flow process, to retain the context of user in core net.
2. the method for claim 1, it is characterized in that, carry the cell that content comprises CSFB in described failure of establishing initial context message and specifically comprise: the Cause cell in described failure of establishing initial context message increases enumerated value CSFBactivity newly.
3. the method for claim 1, is characterized in that, carries the cell that content comprises CSFB and specifically comprises: newly-increased cell CSFallbackIndicator in described failure of establishing initial context message in described failure of establishing initial context message.
4. the method as described in claim 1 or 2 or 3, it is characterized in that, described method also comprises: initiate to switch, UE is switched to target access system.
5. a circuit domain dropping CSFB flow process Notification Method, is characterized in that, comprising:
Receiving package is containing the service request information of CSFB instruction;
Send the initial context carrying CSFB instruction to base station and set up request message;
Receive the failure of establishing initial context InitialContextSetupFail message of carrying content and comprising CSFB cell, and retain the context of user in core net, described cell represents that base station eNodeB is starting CSFB flow process.
6. method as claimed in claim 5, is characterized in that, also comprises before the service request information of described receiving package containing CSFB instruction:
Receive CS territory beep-page message;
Described CS territory beep-page message is broadcasted to UE.
7. a circuit domain dropping CSFB flow process notifying device, is characterized in that, comprising:
Initial context sets up request receiving module (310), sets up request message for receiving the initial context carrying CSFB instruction;
Failure of establishing initial context replys module (320), for replying failure of establishing initial context message, and carrying the cell that content comprises CSFB within the message, described cell represents that base station eNodeB is starting CSFB flow process, to retain the context of user in core net.
8. device as claimed in claim 7, it is characterized in that, described device also comprises: switch initiation module (330), switching, being switched in target access system by UE for initiating.
9. a circuit domain dropping CSFB flow process notifying device, is characterized in that, comprising:
Service request reception module (410), for the service request information of receiving package containing CSFB instruction;
Initial context sets up request message sending module (420), sets up request message for sending the initial context carrying CSFB instruction to base station;
Failure of establishing initial context message reception module (430), carry content and comprise the failure of establishing initial context message of CSFB cell for receiving and continue to retain user at the context of core net, described cell represents that base station eNodeB is starting CSFB flow process.
10. device as claimed in claim 9, is characterized in that, also comprise:
Beep-page message receiver module (406), for receiving CS territory beep-page message;
Beep-page message broadcast module (408), for broadcasting described CS beep-page message to UE.
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| CN103209444B (en) * | 2012-01-13 | 2015-11-25 | 华为技术有限公司 | A kind of method and apparatus of resource release |
| RU2015121399A (en) * | 2012-11-05 | 2016-12-27 | Хуавэй Текнолоджиз Ко., Лтд. | METHOD, DEVICE AND SYSTEM FOR RETURNING TO THE LONG-TERM DEVELOPMENT STANDARD (LTE) NETWORK |
| WO2014198070A1 (en) * | 2013-06-14 | 2014-12-18 | 华为技术有限公司 | Method and device for realizing csfb |
| CN105530674A (en) * | 2014-10-23 | 2016-04-27 | 中兴通讯股份有限公司 | Circuit domain fallback method and communication node and system |
| CN105025532B (en) * | 2015-06-12 | 2018-10-23 | 大唐移动通信设备有限公司 | A kind of processing method and system that circuit domain retracts |
| CN109842881B (en) * | 2017-09-15 | 2021-08-31 | 华为技术有限公司 | Communication method, related equipment and system |
| CN111918391B (en) * | 2020-09-08 | 2023-03-14 | 中国联合网络通信集团有限公司 | Paging processing method, evolved node B and mobile terminal |
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| CN101262414A (en) * | 2007-03-07 | 2008-09-10 | 中兴通讯股份有限公司 | Domain switch method in continuous voice call service |
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| GEP20094866B (en) * | 2004-04-30 | 2009-12-25 | Interdigital Tech Corp | Method and apparatus for minimizing redundant enhanced uplink allocation requests and fault-tolerating eu transmission failures |
| CN100525534C (en) * | 2006-01-05 | 2009-08-05 | 华为技术有限公司 | Method and system for call hold |
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| CN1738480A (en) * | 2004-08-18 | 2006-02-22 | 华为技术有限公司 | Method for obtaining mobile phone position information |
| CN101262414A (en) * | 2007-03-07 | 2008-09-10 | 中兴通讯股份有限公司 | Domain switch method in continuous voice call service |
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