CN101562602B - Method for indicating data format type in MBMS service data synchronization system - Google Patents
Method for indicating data format type in MBMS service data synchronization system Download PDFInfo
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Abstract
The invention discloses a method for indicating a data format type in a multi-media broadcast/multi-broadcast service MBMS data synchronization system. A synchronization element location obtains the data format type of a broadcast/multi-broadcast service by analyzing the received configuration information of an operation maintenance system or the received control surface information, wherein the configuration information and the control surface information carry the data format type information of the broadcast/multi-broadcast service; and moreover, after the synchronization element location receives a broadcast/multi-broadcast service data packet, the synchronization element location performs post-treatment to the broadcast/multi-broadcast service data packet according to the analysis of the obtained data format type. The method can enable the synchronization element location, such as RNC, to obtain the type information of the data packet of the MBMS service so as to perform differenttreatment according to different types for adapting to different data format types with different synchronization methods among different RNCs or without content synchronization among RNCs.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to the method for indication business datum Format Type in a kind of multimedia broadcasting/multicast services (Multimedia Broadcast/Multicast Service is called for short MBMS) business data synchronization system
Background technology
People no longer are satisfied with phone and messaging service to the demand of mobile communication now, and along with the fast development of Internet net, a large amount of multimedia services emerge.The some of them applied business, a plurality of users can receive identical data simultaneously, like video request program, television broadcasting, video conference, online education, interactive game etc.Multimedia broadcast/multi broadcast MBMS technology is proposed in order to realize utilizing mobile network resource most effectively; It is meant that a data source sends the point-to-multipoint service of data to a plurality of users; The realization Internet resources are shared, and comprise that mobile core network and access network resource are shared, especially interface-free resources.The MBMS of 3GPP definition can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can realize the multimedia service multicast and the broadcasting of two-forty, and this has complied with following mobile data Development Trend undoubtedly.
As the technology that improves the professional availability of frequency spectrum of MBMS, SFN (Single FrequencyNetwork is called for short SFN) or chip-level merge (being called for short Chip merges) technology, require the identical wireless signal of all adjacent base station synchronized transmissions.
Under the SFN pattern, subscriber equipment (UE) can be regarded as multipath signal with the signal that comes from different base station.Make public physic channel transmit broadcasting service and obtain bigger signal gain, thereby improved professional service quality (QoS) performance of MBMS.But introducing that should technology has brought new problem: since be regarded as multipath from the different base station signal by user terminal UE, just require each footpath data must keep synchronized transmission.
Under the Chip merging patterns, user terminal UE receives the service signal that different base station sends simultaneously, and realizes merging at chip-level through the multi-plot joint detection technique.The MBMS service signal that this different districts that all requires UE to receive sends all is the same at same time slot.
Variation has taken place in the protocol stack of user plane behind the 3GPP introducing MBMS; Radio network controller (Radio Network Controller; Be called for short RNC) can be when the MBMS service carrier is set up according to core net coverage (Service Area; Be called for short SA) tabulation, be made into the cell set mode with affiliated cell set and set up shared PDCP in a plurality of sub-districts (Packet Data ConvergenceProtocol is called for short PDCP) and Radio Link control (Radio Link Control; Be called for short RLC) entity; Medium access control (Medium Access Control forMBMS is called for short MAC-m) and the Frame Protocol separately (Frame Protocol is called for short FP) of MBMS separately used in each sub-district.
The MBMS business is the service towards the whole network, and same MBMS business possibly be based upon on the different RNCs.Like this, the UE receiving gain is improved in order to utilize SFN or Chip folding in the sub-district between different RNCs, needs and the identical MBMS business of cell synchronizing transmission of the adjacent R NC signal of eating dishes without rice or wine.Otherwise, belong to that signal can cause with disturbing frequently between the neighbor cell of different RNCs, perhaps UE can not get receiving gain.
Because different RNCs network element processing service data mode and parameter is different; Especially consider that network congestion causes the time-delay of the business datum that the different RNCs network element receives even the possibility of losing; Guarantee to belong to the identical signal of eating dishes without rice or wine of minizone ability synchronized transmission under the different RNCs network element, need harmonious assurance the between the RNC network element.
Realize in the technology synchronous between the MBMS service node a kind of; Through being issued to the Node B (ENB) of each radio network controller or expansion after at certain core network element the MBMS business datum being handled; The MBMS business data processing entity of this method through single node avoids the heterogeneous networks network element to handle inconsistent that same MBMS business datum brings respectively.
The introducing of above-mentioned method; To existing equipment following influence will be arranged: in the existing standard agreement; The MBMS business datum form that radio network controller or expanding node B receive through the Iu interface is original MBMS business data packet; After introducing said method; To need between radio network controller or expanding node B, realizing the synchronous business of MBMS business tine, form after its raw data packets is handled through core network element and original data packet format are obviously different, and the radio network controller and the expanding node B that receive this business datum are also different to the processing method of data of different-format.And, be necessary to make radio network controller perhaps to expand the professional data format of certain MBMS that true Node B receives knowing it from compatible prior protocols and operational angle, so that use different processing methods to handle.
In the prior standard agreement, do not indicate the method for the professional data format of relevant certain MBMS of radio network controller or expanding node B.
Summary of the invention
Technical problem to be solved by this invention is, the method for indication broadcast/multi broadcast business type of data format in a kind of multimedia broadcast/multi broadcast system is provided.
The present invention provides the method for designation data Format Type in a kind of multimedia broadcast/multi broadcast business MBMS data synchronous system, comprising:
Network element is perhaps analyzed the type of data format that the chain of command message that is received is known broadcast/multi broadcast business through the configuration information of analyzing the Operation & Maintenance System of being received synchronously;
After said synchronous network element receives the broadcast/multi broadcast business packet, it is carried out subsequent treatment according to analyzing the gained type of data format;
Wherein, carry the type of data format information of broadcast/multi broadcast business in said configuration information and the chain of command message.
Further, said configuration information is to be configured by Operation & Maintenance System, disposes the corresponding relation between broadcast/multi broadcast business and the corresponding type of data format; Correspondingly, said synchronous network element is when receiving packet, and the data format corresponding according to data described in the configuration information handled the packet that is received.
Further, said chain of command message is that the broadcast/multi broadcast session begins signaling message, and its increase has a cell that is used to indicate the broadcast/multi broadcast business type: the broadcast/multi broadcast type of data format is MBMS Data Type.
Further, said broadcast/multi broadcast type of data format comprises:
Original broadcast/cast service data bag type of not handling through wireless network protocol,
Or the wireless link control protocol data cell type, or the media access control protocol data unit type, or the Frame Protocol type, or the synchronous SYNC protocol type of MBMS.
Further; When said broadcast/multi broadcast business type of data format was the original broadcast do not handled through wireless network protocol/cast service data bag type, the broadcast/multi broadcast business packet of the type that then said synchronous network element butt joint is received carries out PDCP PDCP, Radio Link control RLC, media access control MAC protocol layer to be handled.
Further, when said broadcast/multi broadcast business type of data format was the wireless link control protocol data cell type, the business data packet of the type that then said synchronous network element butt joint is received was carried out media access control MAC-m protocol layer and is handled.
Further; When said broadcast/multi broadcast business type of data format is SYNC protocol data type; The business data packet of the type that then said synchronous network element butt joint is received is carried out the SYNC protocol processes, and carries out Radio Link control RLC, media access control MAC-m protocol layer.
Further, if said synchronous network element is a radio network controller (RNC), then also need carry out sending to Node B after Frame Protocol handles; If said synchronous network element is a Node B, then also need carries out wireless network physical layer protocol layer and handle it.
Further, said synchronous network element is a radio network controller (RNC), Node B, and expanding node B is ENB, Node B+be NodeB+, or the network element that possesses the identical function entity and need realization MBMS service synchronization to send with said network element.
Further; When said broadcast/multi broadcast business type of data format is the media access control protocol data unit type; If network element is a radio network controller synchronously; Then said radio network controller carries out being sent to Node B after Frame Protocol FP protocol layer handles to the business data packet of the type of receiving; Synchronously network element for expanding node B be ENB or Node B+, then the business data packet of the type of receiving is carried out radio physical layer and handles.
Method provided by the invention can make RNC know the type information of the packet that MBMS is professional, thereby carry out different processing according to different types, to adapt to method for synchronous between different RNC, or not have the different data format type of content synchronization between RNC.
Description of drawings
Fig. 1 is that synchronous network element is known MBMS business datum Format Type and it is carried out the flow chart of corresponding subsequent processing.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, the present invention is done to specify further below in conjunction with accompanying drawing.
Realize in the technology synchronous between the MBMS service node a kind of; Through being issued to the Node B (ENB) of each radio network controller or expansion after at certain center network element the MBMS business datum being handled; The MBMS business data processing entity of this method through single node avoids the heterogeneous networks network element to handle inconsistent that same MBMS business datum brings respectively.
Simultaneously, the method for prior standard protocol definition is not supported content synchronization between the professional radio network controller of MBMS, the original MBMS business data packet of the packet that radio network controller (RNC) receives for not passing through similar processing.
Like this, needs are carried out synchronous MBMS business and do not need synchronous MBMS business, with adopting different MBMS business datum forms.Radio network controller need be handled the MBMS business data packet of two kinds of possibility forms.
Difference for data format described in the above-mentioned technology comprises two aspects:
(1) original packet, or the packet after the Synchronous Processing, its data are different;
(2) because need the extraneous information of increase synchronously, comprise timestamp, sequence number or the like.
Two above-mentioned factors cause the difference of above-mentioned form; If there is not a kind of mode can make RNC know the form of the business datum that it receives; RNC can not be according to different data formats; Business datum is carried out different processing, thereby cause the realization of RNC and the incompatibility problem of standard.
The technical issues that need to address of the present invention provide a kind of in the MBMS service content synchronization method, realize that synchronous network element knows MBMS business datum Format Type and it is carried out the method for corresponding subsequent processing, promptly as shown in Figure 1 comprising:
Synchronous configuration information or the chain of command message that analysis received of network element through analyzing the Operation & Maintenance System of the being received type of data format of knowing broadcast/multi broadcast business;
The broadcast/multi broadcast business packet that said synchronous network element butt joint is received carries out subsequent treatment according to analyzing the gained type of data format to it;
Wherein, carry the type of data format information of broadcast/multi broadcast business in said configuration information and the chain of command message.
Said acquisition method comprises one of following dual mode:
● network element is learnt the type of data format that said MBMS is professional through the configuration of Operation & Maintenance System synchronously, and to the said MBMS business data packet that it receives, according to its type of data format, carries out corresponding subsequent processing.Described configuration comprises the MBMS service identification, with and corresponding type of data format.
● in MBMS Session Start (the MBMS session begins) message; Carry professional type of data format information; Said synchronous network element receives MBMS Session Start signaling message, therefrom knows the type of data format information that this MBMS is professional, and to its said MBMS business data packet that receives through the Iu interface; According to its type of data format, carry out corresponding subsequent processing.
In the said method, described synchronous network element can be following a kind of: radio network controller (RNC), and expanding node B (ENB), Node B+(NodeB+), or other possesses the identical function entity, and need the network element of realizing that the MBMS service synchronization is sent.
In the said method; Said MBMS business datum Format Type can be a kind of in the following type: the original MBMS business data packet of handling through wireless network protocol; The wireless link control protocol data cell type; The media access control protocol data unit type, the synchronous SYNC protocol type of MBMS.Wherein:
If said MBMS business datum Format Type is the original MBMS business data packet of not handling through wireless network protocol, then network element need carry out PDCP, RLC, the processing of MAC protocol layer to it synchronously.If said synchronous network element is a radio network controller, then also need carry out sending to Node B after Frame Protocol handles; If said synchronous network element is a Node B, then also need carries out wireless network physical layer protocol layer and handle it.
If said MBMS business datum Format Type is the wireless link control protocol data cell type, the RLC PDU that then synchronous network element butt joint is received need carry out the MAC protocol layer to be handled.If said synchronous network element is a radio network controller, then also need carry out sending to Node B after Frame Protocol handles; If said synchronous network element is a Node B, then also need carries out wireless network physical layer protocol layer and handle it.
If said MBMS business datum Format Type is the media access control protocol data unit type, if then synchronous network element is a radio network controller, the MAC PDU that then synchronous network element butt joint is received carries out sending to its subordinate's Node B network element after the FP Frame Protocol is handled; If synchronously network element is ENB, perhaps NodeB+, then network element carries out radio physical layer to it and handles synchronously.
If said MBMS business datum Format Type is a SYNC protocol data type, then synchronous network element receives packet to it and carries out the SYNC protocol processes, and carries out RLC, MAC protocol processes.If said synchronous network element is a radio network controller, then also need carry out sending to Node B after Frame Protocol handles; If said synchronous network element is a Node B, then also need carries out wireless network physical layer protocol layer and handle it.
According to method of the present invention, a kind of concrete embodiment is following:
Define the broadcast/multi broadcast session according to mode shown in the table 1 and begin MBMS Session Start (the MBMS session begins) message; Increase MBMS business datum format type information
(the MBMS data type is shown in runic) in this message.
Table 1: the cell table of the standard agreement message MBMS Session Start message after the improvement
In standard agreement message MBMS Session Start, increase cell MBMS Data Type (MBMS data type), indicate the professional type of this MBMS, possible type is:
IP: designation data is not for passing through the MBMS packet of any Wi-Fi layer user surface protocol processes;
SYNC: designation data is the PDU type of SYNC agreement;
RLC PDU: the RLC PDU type of designation data for handling through RLC;
MAC PDU: designation data is to have passed through the MAC PDU type that MAC handles.
Radio network controller (RNC) reads cell MBMS Data Type in this message after receiving message MBMS Session Start, and know the type of data format that this is professional, and handle accordingly according to concrete type, for example:
If data type is RLC PDU, then the packet of RNC to receiving reads the RLC PDU that it carries, and after it is carried out MAC and FP protocol processes, sends to Node B;
If data type is IP, the packet of RNC to receiving then need carry out sending to Node B after protocol layers such as PDCP, RLC, MAC-m, FP handle.
Be a specific embodiment that said synchronous network element is NodeB+ below.Define the broadcast/multi broadcast session according to mode shown in the table 1 and begin MBMS Session Start message; Increase MBMS business datum format type information
(the MBMS data type is shown in runic) in this message; In standard agreement message MBMS Session Start, increase cell MBMS Data Type, indicate the professional type of this MBMS, possible type is:
IP: designation data is not for passing through the MBMS packet of any Wi-Fi layer user surface protocol processes;
SYNC: designation data is the PDU type of SYNC agreement;
RLC PDU: the RLC PDU type of designation data for handling through RLC;
MAC PDU: designation data is to have passed through the MAC PDU type that MAC handles.
Said synchronous network element is NodeB+, after this NodeB+ receives message MBMS Session Start, reads cell MBMS Data Type in this message, know the type of data format that this is professional, and handle accordingly according to concrete type, for example:
If data type is RLC PDU, then the packet of NodeB+ to receiving reads the RLC PDU that it carries, and it carried out the MAC protocol processes, the wireless network physical layer process;
If data type is IP, then the packet of NodeB+ to receiving need carry out PDCP, RLC, MAC-m, wireless network physical layer process.
For another kind of implementation method, that is: network element is learnt the type of data format that said MBMS is professional through the configuration of Operation & Maintenance System synchronously, and to the said MBMS business data packet that it receives, according to its type of data format, carries out corresponding subsequent processing.Described configuration comprises the MBMS service identification, with and corresponding type of data format.The professional data format information form as shown in table 2 below of said Operation & Maintenance System configuration MBMS:
Table 2:MBMS business datum format configuration table.
The possible type of said data format is:
IP: designation data is not for passing through the MBMS packet of any Wi-Fi layer user surface protocol processes:
SYNC: designation data is the PDU type of SYNC agreement;
RLC PDU: the RLC PDU type of designation data for handling through RLC;
MAC PDU: designation data is to have passed through the MAC PDU type that MAC handles.
After said radio network controller (RNC) receives the configuration of Operation & Maintenance System, read cell MBMS Data Type in this message, know the type of data format that this is professional, and handle accordingly according to concrete type, for example:
If data type is RLC PDU, then the packet of RNC to receiving reads the RLC PDU that it carries, and after it is carried out MAC and FP protocol processes, sends to Node B;
If data type is IP, the packet of RNC to receiving then need carry out sending to Node B after protocol layers such as PDCP, RLC, MAC-m, FP handle.
The preferred embodiments of the present invention that are merely described herein are not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Therefore, all any modifications of within spirit of the present invention and principle, being done, be equal to replacement, improve and upgrade or the like, all should be included within protection scope of the present invention.
Claims (10)
1. the method for designation data Format Type in the multimedia broadcast/multi broadcast business MBMS data synchronous system is characterized in that, comprising:
Network element is perhaps analyzed the type of data format that the chain of command message that is received is known broadcast/multi broadcast business through the configuration information of analyzing the Operation & Maintenance System of being received synchronously;
After said synchronous network element receives the broadcast/multi broadcast business packet, it is carried out subsequent treatment according to analyzing the gained type of data format;
Wherein, carry the type of data format information of broadcast/multi broadcast business in said configuration information and the chain of command message.
2. the method for claim 1 is characterized in that,
Said configuration information is to be configured by Operation & Maintenance System, disposes the corresponding relation between broadcast/multi broadcast business and the corresponding type of data format; Correspondingly,
Said synchronous network element is when receiving packet, and the data format corresponding according to data described in the configuration information handled the packet that is received.
3. the method for claim 1 is characterized in that,
Said chain of command message is that the broadcast/multi broadcast session begins signaling message, and its increase has a cell that is used to indicate the broadcast/multi broadcast business type: the broadcast/multi broadcast type of data format is MBMS Data Type.
4. the method for claim 1 is characterized in that,
Said broadcast/multi broadcast type of data format comprises:
Original broadcast/cast service data bag type of not handling through wireless network protocol,
Or the wireless link control protocol data cell type, or the media access control protocol data unit type, or the Frame Protocol type, or the synchronous SYNC protocol type of MBMS.
5. method as claimed in claim 4 is characterized in that,
When said broadcast/multi broadcast business type of data format was the original broadcast do not handled through wireless network protocol/cast service data bag type, the broadcast/multi broadcast business packet of the type that then said synchronous network element butt joint is received carries out PDCP PDCP, Radio Link control RLC, media access control MAC protocol layer to be handled.
6. method as claimed in claim 4 is characterized in that,
When said broadcast/multi broadcast business type of data format was the wireless link control protocol data cell type, the business data packet of the type that then said synchronous network element butt joint is received was carried out media access control MAC-m protocol layer and is handled.
7. method as claimed in claim 4 is characterized in that,
When said broadcast/multi broadcast business type of data format was SYNC protocol data type, the business data packet of the type that then said synchronous network element butt joint is received was carried out the SYNC protocol processes, and carried out Radio Link control RLC, media access control MAC-m protocol layer.
8. like each described method in the claim 5 to 7, it is characterized in that,
If said synchronous network element is a radio network controller (RNC), then also need carry out sending to Node B after Frame Protocol handles; If said synchronous network element is a Node B, then also need carries out wireless network physical layer protocol layer and handle it.
9. method as claimed in claim 4 is characterized in that,
When said broadcast/multi broadcast business type of data format is the media access control protocol data unit type; If network element is a radio network controller synchronously; Then said radio network controller carries out being sent to Node B after Frame Protocol FP protocol layer handles to the business data packet of the type of receiving; Synchronously network element for expanding node B be ENB or Node B+, then the business data packet of the type of receiving is carried out radio physical layer and handles.
10. like each described method in the claim 1 to 7, it is characterized in that,
Said synchronous network element is a radio network controller (RNC), Node B, and expanding node B is ENB, Node B+be NodeB+, or the network element that possesses the identical function entity and need realization MBMS service synchronization to send with said network element.
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| CN101039175A (en) * | 2007-03-27 | 2007-09-19 | 中兴通讯股份有限公司 | Method and system for synchronizing RLC in wireless network controllers |
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| CN101039175A (en) * | 2007-03-27 | 2007-09-19 | 中兴通讯股份有限公司 | Method and system for synchronizing RLC in wireless network controllers |
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