CN101500194B - Restoring method and apparatus for multimedia broadcast multicast service synchronization between RNCs - Google Patents
Restoring method and apparatus for multimedia broadcast multicast service synchronization between RNCs Download PDFInfo
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- CN101500194B CN101500194B CN 200810007080 CN200810007080A CN101500194B CN 101500194 B CN101500194 B CN 101500194B CN 200810007080 CN200810007080 CN 200810007080 CN 200810007080 A CN200810007080 A CN 200810007080A CN 101500194 B CN101500194 B CN 101500194B
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Abstract
The invention discloses a method for recovering the synchronization of the multimedia broadcast and multicast service among radio network controllers, comprising the steps as follows: a drift radio network controller (DRNC) carries out user plane processing for the multimedia broadcast and multicast service data which are received from a core network and then issues the data when the DRNC detects that the Iur synchronous bearing of the multimedia broadcast and multicast service between the drift radio network controller (DRNC) and a serving radio network controller (SRNC) breaks down. In addition, the invention also discloses a device for recovering the synchronization of the multimedia broadcast and multicast service among the radio network controllers. The use of the invention leads the drift radio network controller (DRNC) not to interrupt the transmission of the multimedia broadcast and multicast service (MBMS) when the serving radio network controllers (SRNC) break down or failures occur to the Iur bearing between the serving radio network controller (SRNC) and the drift radio network controller (DRNC), so as to ensure the continuity of the service and improve the reliability of the system.
Description
Technical field
The present invention relates to the communications field, and especially, relate to restoration methods and the device of multimedia broadcast multicast service synchronization between a kind of radio network controller (RNC).
Background technology
Along with the fast development of Internet network, people no longer content just to phone and messaging service to the demand of mobile communication, at present, a large amount of multimedia services occurred.For some applied business wherein, a plurality of users can receive identical data simultaneously, such as video request program, television broadcasting, video conference, online education, interactive game etc.
In order to realize utilizing most effectively mobile network resource, the MBMS technology has appearred.MBMS refers to that a data source sends the point-to-multipoint service of data to a plurality of users, and it has realized that Internet resources are shared, comprises especially sharing of interface-free resources of mobile core network and access network resource.
Third generation partner program (3rd Generation Partnership Project, 3GPP) MBMS of definition can not only realize classes of messages multicast and the broadcasting of plain text low rate, and can also realize multimedia service multicast and the broadcasting of two-forty, this has complied with the trend of following Mobile data development undoubtedly.
As the technology that improves the professional availability of frequency spectrum of MBMS, single frequency network (SingleFrequency Network, SFN) or Chip merge (chip-level merging) wireless signal that all adjacent base station synchronized transmissions of specification requirement are identical.
Under the SFN pattern, subscriber equipment (User Equipment, UE) signal from different base station can be considered as multipath signal, so that transmitting broadcasting service, public physic channel obtains larger signal gain, thereby improved service quality (Qualityof Service, the QoS) performance of MBMS business.But the introducing of this technology has also brought new problem, that is, if be considered as multipath from the signal of different base station by UE, then require each footpath data must keep synchronized transmission.Under the Chip merging patterns, UE receives the service signal that different base station sends simultaneously, and realizes merging at chip-level by the multi-cell joint detection technology.The MBMS service signal that this different districts that all requires UE to receive sends all is being the same with being for the moment.
Variation has occured in the protocol stack of user's face behind the 3GPP introducing MBMS, RNC can be according to core net coverage (Service Area when the MBMS service carrier is set up, referred to as SA) tabulation, be made into the cell set mode with affiliated cell set and set up shared PDCP (the Packet Data Convergence Protocol in a plurality of residential quarters, PDCP) and Radio Link control (Radio Link Control, RLC) entity, media access control (the Medium Access Control for MBMS of MBMS is separately used in each residential quarter, MAC-m) and Frame Protocol separately (Frame Protocol, FP).
The MBMS business is the service towards the whole network, and same MBMS business may be based upon on the different RNCs.Like this, residential quarter between different RNCs is in order to utilize SFN or Chip folding to improve the UE receiving gain, need and the identical MBMS business of cell synchronous transmission of the adjacent R NC signal of eating dishes without rice or wine, otherwise, belong to that signal can cause co-channel interference between the neighbor cell of different RNCs, perhaps UE can not get receiving gain.
Because the mode of different RNCs processing service data and parameter is different, and consider that network congestion causes the delay of the business datum that RNC receives even the possibility of losing, the minizone that therefore will guarantee to belong to different RNCs can the identical signal of eating dishes without rice or wine of synchronized transmission, needs harmonious assurance the between RNC.
As shown in Figure 1, a kind of by the Iur Interface realization RNC between RNC between in the method for MBMS service synchronization, the RNC that needs synchronized transmission MBMS business is divided into main RNC and from RNC from function, wherein, main RNC processes the MBMS business datum, and is distributed to each from RNC by Iur Interface realization data.In packet, carry the delivery time that timestamp is specified each packet in the method.
Yet, in the middle of practical application, can there be the problem of single point failure, for example, if the SRNC among Fig. 1 breaks down, all DRNC also can not send the MBMS business; If perhaps SRNC breaks down to the Iur connection of certain DRNC, then involved DRNC also can not send the MBMS business.Concerning this business that sends in a panel region of MBMS, DRNC can not send the MBMS business and will cause large stretch of user to be affected, and this is that loss is immeasurable to operator.
Yet, not yet propose so far when breaking down, to guarantee professional technical scheme of normally carrying out.
Summary of the invention
Consider the problems referred to above and make the present invention, for this reason, main purpose of the present invention is to provide the Restoration Mechanism of multimedia broadcast multicast service synchronization between a kind of radio network controller, in case will cause the professional problem that stops with primary wireless network controller in the solution correlation technique and from the Iur synchronous bearer fault between the radio network controller.
According to embodiments of the invention, the restoration methods of multimedia broadcast multicast service synchronization between a kind of radio network controller is provided, be used for to realize the primary wireless network controller and at least one is from the synchronous fault recovery of the multimedia broadcast multicast data between radio network controller, wherein, the primary wireless network controller with all be connected to core net from radio network controller.
The method comprises: in the situation that the Iur synchronous bearer that detects the multimedia broadcast-multicast service between itself and the primary wireless network controller from radio network controller breaks down, from radio network controller the multimedia broadcast and multicast service data that receives from core net is carried out user's face and process and issue.
And, after the Iur synchronous bearer that detects multimedia broadcast-multicast service breaks down, further comprise: the resource that discharges the Iur synchronous bearer of multimedia broadcast-multicast service from radio network controller.
Wherein, when the resource of the Iur synchronous bearer that discharges multimedia broadcast-multicast service, keep MAC-m entity and the FP entity multimedia broadcast-multicast service set up from radio network controller.
And, after the Iur synchronous bearer that detects multimedia broadcast-multicast service breaks down, if from the Iu carrying that radio network controller does not have and core net is set up multimedia broadcast-multicast service, then further comprise: set up the Iu carrying of multimedia broadcast-multicast service between itself and the core net from radio network controller, and receive multimedia broadcast and multicast service data from core net by the Iu carrying.
Particularly, in the situation that the Iur synchronous bearer that detects multimedia broadcast-multicast service from radio network controller recovers, further comprise: receive multimedia broadcast and multicast service data from the primary wireless network controller from the Iur synchronous bearer of radio network controller by the multimedia broadcast-multicast service that recovers, and the multimedia broadcast and multicast service data that receives is carried out issuing after user's face is processed.
According to another embodiment of the present invention, the recovery device of multimedia broadcast multicast service synchronization between a kind of radio network controller is provided, be positioned at from the radio network controller side, for realization primary wireless network controller and from the synchronous fault recovery of the multimedia broadcast multicast data between radio network controller, wherein, primary wireless network controller and all be connected to core net from radio network controller.
This device comprises: detection module, for detection of detect from radio network controller and the primary wireless network controller between the fault of Iur synchronous bearer of multimedia broadcast-multicast service; Receiver module is used for detecting in the situation of fault of Iur synchronous bearer of multimedia broadcast-multicast service at detection module, the multimedia broadcast and multicast service data that receives from core net is carried out user's face process; Issue module, the multimedia broadcast and multicast service data that has been used for carrying out after user's face is processed is issued to the residential quarter that needs to send multimedia broadcast multicast service.
And, this device further comprises: release module, be used for after the Iur synchronous bearer that detection module detects multimedia broadcast-multicast service breaks down, discharge the resource of the Iur synchronous bearer of multimedia broadcast-multicast service, wherein, when release module discharges the resource of Iur synchronous bearer of multimedia broadcast-multicast service, keep MAC-m entity and the FP entity multimedia broadcast-multicast service set up from radio network controller.
This device can further include: set up module, break down for the Iur synchronous bearer that detects multimedia broadcast-multicast service at detection module, and do not have to set up in the situation of multimedia broadcast-multicast service Iu carrying with core net from radio network controller, set up and carry from the Iu between radio network controller and the core net.
In addition, whether the detection module Iur synchronous bearer that also can be used for detecting the multimedia broadcast-multicast service that breaks down recovers.Release module also is used in the resource that discharges the Iu carrying of multimedia broadcast-multicast service in the situation that Iur synchronous bearer that detection module detects multimedia broadcast-multicast service recovers.
By technique scheme of the present invention, can SRNC break down or SRNC and DRNC between Iur carrying when breaking down, make DRNC can not interrupt the transmission of MBMS business, thereby guaranteed professional continuity, improved the reliability of system.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the networking schematic diagram that the Iur interface realizes that between RNC the MBMS service synchronization sends that passes through according to correlation technique;
Fig. 2 is the flow chart according to the processing example 1 of the restoration methods of multimedia broadcast multicast service synchronization between the radio network controller of the inventive method embodiment;
Fig. 3 is the flow chart according to the processing example 2 of the restoration methods of multimedia broadcast multicast service synchronization between the radio network controller of the inventive method embodiment; And
Fig. 4 is the block diagram according to the recovery device of multimedia broadcast multicast service synchronization between the radio network controller of apparatus of the present invention embodiment.
Embodiment
Embodiment of the method
In the present embodiment, the restoration methods of multimedia broadcast multicast service synchronization between a kind of radio network controller is provided, be used for to realize primary wireless network controller (SRNC) and at least one is from the synchronous fault recovery of the multimedia broadcast multicast data between radio network controller (DRNC), wherein, SRNC and DRNC all are connected to core net.
The method comprises: detect in the situation that the Iur synchronous bearer of the multimedia broadcast-multicast service between itself and the SRNC breaks down at DRNC, DRNC carries out user's face to the multimedia broadcast and multicast service data that receives from core net and processes and issue.
And after the Iur synchronous bearer that detects multimedia broadcast-multicast service breaks down, further comprise: DRNC discharges the resource of Iur synchronous bearer.
Wherein, when the resource of the Iur synchronous bearer that discharges multimedia broadcast-multicast service, keep MAC-m entity and FP entity that DRNC sets up multimedia broadcast-multicast service.
And, after detecting the Iur synchronous bearer and breaking down, if from the Iu carrying that radio network controller does not have and core net is set up multimedia broadcast-multicast service, then further comprise: DRNC sets up the Iu carrying between itself and the core net, and receives multimedia broadcast and multicast service data from core net by the Iu carrying.
Particularly, detect in the situation that the Iur synchronous bearer of multimedia broadcast-multicast service recovers at DRNC, further comprise: the Iur synchronous bearer of DRNC by the multimedia broadcast-multicast service that recovers receives the multimedia broadcast and multicast service data from SRNC, and the multimedia broadcast and multicast service data that receives is carried out issuing after user's face is processed.
Below in conjunction with instantiation the present invention is described.
Example 1
In this example, suppose DRNC before detecting the professional Iur synchronous bearer of MBMS fault, do not have the professional Iu carrying of MBMS of foundation and core net.Detect after the fault, DRNC rebulids the Iu carrying of MBMS business, sets up relevant user interface instance, uses DRNC to send to each residential quarter from the MBMS business datum that core net receives.
As shown in Figure 2, specifically comprise following processing:
Step 201, DRNC detects the professional Iur synchronous bearer of MBMS that set up and SRNC fault;
Step 202, DRNC discharges the professional Iur synchronous bearer of local described MBMS resource, is that described MBMS is professional but keep DRNC, at MAC-m and the FP entity of home cell foundation;
Step 203, DRNC sets up the professional Iu carrying with the described MBMS of core net, and sets up the user entities such as Iu user plane protocol (IUUP) entity, packet data convergence protocol (PDCP) entity, Radio Link control (RLC) entity;
Step 204, DRNC after the processing of local user's face, sends to each residential quarter that needs described MBMS business with its MBMS business datum that receives from core net.
Example 2
In this example, suppose to rebulid between DRNC and the SRNC Iur carrying of described MBMS business, then DRNC switches its user face data and flows to the data that receive from the Iur interface, and discharges the professional Iu carrying of the described MBMS that has set up.As shown in Figure 3, specifically can comprise following processing:
Step 301, DRNC and SRNC set up the professional Iur synchronous bearer of MBMS;
Step 302, DRNC switches its user face data MBMS business datum that professional Iur synchronous bearer receives to it from described MBMS;
Step 303, the professional Iu carrying of the described MBMS that DRNC discharges and core net has been set up.
Device embodiment
In the present embodiment, the recovery device of multimedia broadcast multicast service synchronization between a kind of radio network controller is provided, has been positioned at the DRNC side, be used for the synchronous fault recovery of multimedia broadcast multicast data between realization SRNC and DRNC, wherein, SRNC and DRNC all are connected to core net.
As shown in Figure 4, comprise according to the recovery device of multimedia broadcast multicast service synchronization between the radio network controller of the present embodiment: detection module 402, for detection of DRNC detect and SRNC between the fault of Iur synchronous bearer of multimedia broadcast-multicast service; Receiver module 404 is used for detecting in the situation of fault of Iur synchronous bearer of multimedia broadcast-multicast service at detection module 402, the multimedia broadcast and multicast service data that receives from core net is carried out user's face process; Issue module 406, the multimedia broadcast and multicast service data that has been used for carrying out after user's face is processed is issued to the residential quarter that needs to send multimedia broadcast multicast service.
And, this device further comprises: the release module (not shown), be used for after the Iur synchronous bearer that detection module 402 detects multimedia broadcast-multicast service breaks down, discharge the resource of Iur synchronous bearer, wherein, when release module discharges the resource of Iur synchronous bearer of multimedia broadcast-multicast service, keep MAC-m entity and FP entity that DRNC sets up multimedia broadcast-multicast service.
This device can further include: set up the module (not shown), break down for the Iur synchronous bearer that detects multimedia broadcast-multicast service at detection module 402, and do not have to set up in the situation of multimedia broadcast-multicast service Iu carrying with core net from radio network controller, set up the Iu carrying between DRNC and the core net.
In addition, whether the detection module 402 Iur synchronous bearer that also can be used for detecting the multimedia broadcast-multicast service that breaks down recovers.Release module also is used in the resource that discharges the Iu carrying of multimedia broadcast-multicast service in the situation that Iur synchronous bearer that detection module detects multimedia broadcast-multicast service recovers.
In sum, by means of technical scheme of the present invention, can SRNC break down or SRNC and DRNC between Iur carrying when breaking down, make DRNC can not interrupt the transmission of MBMS business, thereby guaranteed professional continuity, improved the reliability of system.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the restoration methods of multimedia broadcast multicast service synchronization between a radio network controller, be used for to realize the primary wireless network controller and at least one is from the synchronous fault recovery of the multimedia broadcast and multicast service data between radio network controller, wherein, the radio network controller that needs the described multimedia broadcast and multicast service data of synchronized transmission is divided into the primary wireless network controller and from radio network controller from function, described primary wireless network controller is processed described multimedia broadcast and multicast service data, and be distributed to by Iur Interface realization data that each is described from radio network controller, described primary wireless network controller and describedly all be connected to core net from radio network controller, it is characterized in that, described method comprises:
In the situation that the described Iur synchronous bearer that detects the multimedia broadcast-multicast service between itself and the described primary wireless network controller from radio network controller breaks down, describedly from radio network controller the multimedia broadcast and multicast service data that receives from described core net is carried out user's face and process and issue.
2. method according to claim 1 is characterized in that, after detecting described Iur synchronous bearer and breaking down, further comprises:
The described resource that discharges the Iur synchronous bearer of described multimedia broadcast-multicast service from radio network controller.
3. method according to claim 2, it is characterized in that, when the resource of the Iur synchronous bearer that discharges described multimedia broadcast-multicast service, keeps described from radio network controller to the media access control MAC of the multimedia broadcast-multicast service of described multimedia broadcast-multicast service foundation-m entity and Frame Protocol FP entity.
4. each described method in 3 according to claim 1, it is characterized in that, after the Iur synchronous bearer that detects described multimedia broadcast-multicast service breaks down, if described from the Iu carrying that radio network controller does not have and described core net is set up described multimedia broadcast-multicast service, then further comprise:
Described Iu carrying of setting up described multimedia broadcast-multicast service between itself and the described core net from radio network controller, and by the multimedia broadcast and multicast service data of described Iu carrying reception from described core net.
5. method according to claim 4 is characterized in that, in the situation that the described Iur synchronous bearer that detects described multimedia broadcast-multicast service from radio network controller recovers, further comprises:
The described Iur synchronous bearer that passes through the described multimedia broadcast-multicast service of recovery from radio network controller receives the multimedia broadcast and multicast service data from described primary wireless network controller, and the described multimedia broadcast and multicast service data that receives is carried out issuing after user's face is processed.
6. the recovery device of multimedia broadcast multicast service synchronization between a radio network controller, be positioned at from the radio network controller side, for realization primary wireless network controller and from the synchronous fault recovery of the multimedia broadcast and multicast service data between radio network controller, wherein, the radio network controller that needs the described multimedia broadcast and multicast service data of synchronized transmission is divided into the primary wireless network controller and from radio network controller from function, described primary wireless network controller is processed described multimedia broadcast and multicast service data, and be distributed to by Iur Interface realization data that each is described from radio network controller, described primary wireless network controller and describedly all be connected to core net from radio network controller, it is characterized in that, described device comprises:
Detection module, for detection of described from radio network controller detect and described primary wireless network controller between the fault of Iur synchronous bearer of multimedia broadcast-multicast service;
Receiver module is used for detecting in the situation of fault of Iur synchronous bearer of described multimedia broadcast-multicast service at described detection module, the multimedia broadcast and multicast service data that receives from described core net is carried out user's face process;
Issue module, the described multimedia broadcast and multicast service data that has been used for carrying out after user's face is processed is issued to the residential quarter that needs to send described multimedia broadcast-multicast service.
7. device according to claim 6 is characterized in that, further comprises:
Release module, be used for after the Iur synchronous bearer that described detection module detects described multimedia broadcast-multicast service breaks down, discharge the resource of the Iur synchronous bearer of described multimedia broadcast-multicast service, wherein, when described release module discharges the resource of Iur synchronous bearer of described multimedia broadcast-multicast service, keep the media access control MAC of the described multimedia broadcast-multicast service of described multimedia broadcast-multicast service being set up from radio network controller-m entity and Frame Protocol FP entity.
8. device according to claim 7 is characterized in that, further comprises:
Set up module, break down for the Iur synchronous bearer that detects described multimedia broadcast-multicast service at described detection module, and described do not have to set up in the situation of described multimedia broadcast-multicast service Iu carrying with described core net from radio network controller, sets up described Iu carrying between radio network controller and described core net.
9. according to claim 7 or 8 described devices, it is characterized in that, whether described detection module also recovers for detection of the Iur synchronous bearer of the described multimedia broadcast-multicast service that breaks down.
10. device according to claim 9, it is characterized in that, described release module also is used for detecting the resource that discharges the Iu carrying of described multimedia broadcast-multicast service in the situation that the Iur synchronous bearer of described multimedia broadcast-multicast service recovers at described detection module.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1791241A (en) * | 2004-12-14 | 2006-06-21 | 华为技术有限公司 | Base station networking method for wireless access network |
| CN1859697A (en) * | 2006-02-10 | 2006-11-08 | 华为技术有限公司 | Disaster tolerance method and system for radio network controller node |
| CN101043641A (en) * | 2007-03-07 | 2007-09-26 | 中兴通讯股份有限公司 | Inter-RNC MBMS data synchronization method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1791241A (en) * | 2004-12-14 | 2006-06-21 | 华为技术有限公司 | Base station networking method for wireless access network |
| CN1859697A (en) * | 2006-02-10 | 2006-11-08 | 华为技术有限公司 | Disaster tolerance method and system for radio network controller node |
| CN101043641A (en) * | 2007-03-07 | 2007-09-26 | 中兴通讯股份有限公司 | Inter-RNC MBMS data synchronization method and system |
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