CN101883329A - Method and device for supporting MBMS (Multimedia Broadcast Multicast Service) business content synchronization based on integrated EPS (Evolved Packet System) - Google Patents
Method and device for supporting MBMS (Multimedia Broadcast Multicast Service) business content synchronization based on integrated EPS (Evolved Packet System) Download PDFInfo
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Abstract
The invention discloses a method and a device for supporting MBMS business content synchronization based on an integrated EPS. The method comprises the following steps: after a BM-SC (Broadcast Multicast Service Center) receives MBMS user data, writing in the time stamp of the MBMS user data sent by an original empty port and a differential time stamp which corresponds to multi-hop time delay through which an access gateway and terminal access point equipment pass into the synchronous protocol encapsulation data header of the MBMS user data; sending the MBMS user data with synchronous protocol encapsulation to the access gateway; after the access gateway receives the MBMS user data, working out the time for sending the MBMS user data to the empty port according to the original time stamp of the MBMS user data sent by the empty port and the differential time stamp which corresponds to the multi-hop time delay, which are carried in the MBMS user data, to complete the encapsulation of the MBMS user data; and sending the MBMS user data to the empty port at the worked out time. The invention enables the MBMS user business data to be transmitted in a WLAN (Wireless Local Area Network) network, simultaneously ensures the content synchronization of the MBMS user business data and can not cause additional changes and influences on the original content synchronization scheme in the network.
Description
Technical field
The present invention relates to the MBMS business tine simultaneous techniques of mobile communication, wherein relate in particular to content synchronization method and device that a kind of EPS that merges based on isomery realizes the MBMS business.
Background technology
MBMS (Multimedia Broadcast Multicast Service, multimedia broadcast/group broadcast service) be to propose by 3GPP, can be based on GERAN (GSM/EDGE Radio Access Network), UTRAN (Universal Terrestrial Radio Access Network, the Universal Terrestrial Radio Access Network network) and E-UTRAN access waies such as (Evolved UTRAN, the Universal Terrestrial Radio Access Network networks of evolution) technical standard of mobile broadcast and multicast service is provided.MBMS is by increasing some new functional entitys realization MBMS business of some new functions and definition in the functional entity in the existing network of 3GPP, existing P S domain-functionalities entity can be supported the MBMS bearer service by strengthening.What itself transmit is multimedia service data because MBMS is professional, so the service quality of these data need be effectively guaranteed, and needs promptly to guarantee that time delay when user data transmits and shake are in a sustainable scope.
Owing to higher, therefore should make full use of the broadband wireless access resource of present network based on the Radio Access Network networking cost of 3GPP.At present, industry utilizes various heterogeneous networks to support the business of 3GPP in discussion always, promptly makes full use of the resource of various heterogeneous networks under the prerequisite that does not influence QoS of survice, to improve the resource utilization of wireless network, reduces the cost when business is provided as far as possible.For the MBMS business, 3GPP has proposed to utilize non-3 GPP access network network (for example WLAN) to support the demand of MBMS business at present, still, does not see the relevant 3GPP standard that the MBMS business is provided based on WLAN as yet.
Need solve two problems when utilizing WLAN to support the MBMS business, at first be network architecture problem, and 3GPP has provided the network architecture and the mobile management standard thereof under the non-3GPP access, but define the network architecture when supporting the MBMS business; Secondly, the content synchronization of user data is a key issue under the heterogeneous network framework.At present, 3GPP has provided at UTRAN, the content synchronization method of MBMS business under the access architectures such as E-UTRAN, its basic ideas are by the SYN agreement, on user plane, add up by the increase timestamp with to the transmission of user grouping, make and eat dishes without rice or wine to obtain a relative time timing value that sends user data, specifically, at the EPS of MBMS (Evolved Packet System, evolved packet system) in the framework, by at TNL (Transport Network Layer, transport network layer) introduces the SYNC agreement on the layer, in the encapsulation of SYNC agreement, carry additional control information, make eNB obtain the relative time values that the place of eating dishes without rice or wine sends radio frames, and the while can be detected situations such as grouping packet loss.ENB in the MBSFN retaining zone has certain metadata cache ability, by receiving and identifying the timestamp of a SYN PDU, can obtain the transmitting time of eating dishes without rice or wine of this MBMS grouping bag, eNB can send the MBMS user data according to the delivery time of eating dishes without rice or wine of timestamp indication, thereby supports the content synchronization of MBMS business.Obviously, above-mentioned SYN agreement has been the preliminary definition content synchronization method under above-mentioned two kinds of Access Network situations, do not consider as yet isomery merge and the Mesh environment under MBMS business tine stationary problem.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of based on synchronous method and the device of EPS support MB MS business tine that merges, make the MBMS user service data in the WLAN access network, to transmit, guaranteed the content timing of MBMS user service data simultaneously.
In order to solve the problems of the technologies described above, the invention provides a kind of EPS and support the synchronous method of MBMS business tine based on fusion, comprising:
A, BM-SC receive the MBMS user data that content provider server sends, and former timestamp of eating dishes without rice or wine to send the MBMS user data and IAD are stabbed to the differential time of the multi-hop time delay correspondence of terminal access point apparatus experience write in the synchronous protocol encapsulation of data header of MBMS user data;
B, the MBMS user data that will have a synchronous protocol encapsulation send to IAD;
After C, described IAD receive described MBMS user data, eating dishes without rice or wine of carrying in the synchronous protocol encapsulation of data header according to the MBMS user data sends the timestamp of MBMS user data and IAD and stabs to calculate to the differential time of the multi-hop time delay correspondence of terminal access point apparatus experience the MBMS user data is sent to the moment of eating dishes without rice or wine, and finish the encapsulation of MBMS user data package, packet data format in the MBMS user data package is converted to discernible data format among the WLAN, in the moment that calculates the MBMS user data is sent to and eat dishes without rice or wine.
Further, in the described steps A, after BM-SC received the MBMS user data of content provider server transmission, buffer memory did not arrive the MBMS user data of delivery time.
Further, also comprise before the described steps A:
It is synchronous to judge whether described BM-SC supports that isomery merges the MBMS business tine that inserts, and as if supporting, described BM-SC is supported the initialization procedure of handling based on the MBMS content synchronization of isomery fusion;
If do not support, described BM-SC is carried out the initialization procedure of conventional func, and in a conventional manner the MBMS user data is identified, encapsulates and transmits.
Further, among the described step C, after IAD receives described MBMS user data, the described MBMS user data of buffer memory at first.
Further, among the described step C, IAD also comprises before receiving described MBMS user data:
Judge whether described IAD supports isomery to merge the MBMS business tine synchronizing function that inserts,, support isomery to merge the initialization procedure of the MBMS business tine synchronizing function that inserts described IAD if support;
If do not support, described IAD is carried out the initialization procedure of conventional func.
The present invention also provides a kind of and has supported the synchronous device of MBMS business tine based on the EPS that merges, and comprising:
MBMS content synchronization processing unit, after being used to receive the MBMS user data that content provider server sends, the former timestamp of eating dishes without rice or wine to send the MBMS user data of eNb and IAD stabbed to the differential time of the multi-hop time delay correspondence of terminal access point apparatus experience writing in the synchronous protocol encapsulation of data header of MBMS user data;
MBMS service-user data control unit, be used for after IAD receives the MBMS user data, eating dishes without rice or wine of carrying in the synchronous protocol encapsulation of data header according to the MBMS user data sends the timestamp of MBMS user data and IAD and stabs to calculate to the differential time of the multi-hop time delay correspondence of terminal access point apparatus experience the MBMS user data is sent to the moment of eating dishes without rice or wine, and the control IAD sends to the MBMS user data in this moment and eats dishes without rice or wine.
Further, described MBMS content synchronization processing unit comprises:
MBMS user data receiver module is used to receive the MBMS user data that sends from content provider server;
MBMS user data cache module is used for the MBMS user data that buffer memory does not arrive delivery time;
MBMS content synchronization processing module, be used to calculate the delivery time of MBMS user data package, the former timestamp of eating dishes without rice or wine to send the MBMS user data of eNB and IAD are stabbed to the differential time of the multi-hop time delay correspondence of terminal access point apparatus experience write in the synchronous protocol encapsulation of data header of MBMS user data;
MBMS user data sending module is used to send the MBMS user data that has synchronous protocol encapsulation to eNb and the IAD that merges based on isomery.
Further, described MBMS content synchronization processing unit also comprises:
The judgement and the initialization module of MBMS content synchronization processing unit, it is synchronous to be used to judge whether BM-SC supports that isomery merges the MBMS business tine that inserts, if support, then described MBMS content synchronization processing unit is carried out merging the MBMS content synchronization initialization procedure that inserts based on isomery; If do not support, described BM-SC is carried out the initialization procedure of conventional func, and in a conventional manner the MBMS user data is identified, encapsulates and transmits.
Further, described MBMS service-user data control unit comprises:
MBMS user data receiver module is used for receiving the MBMS user data that sends from the MBMS gateway;
MBMS user data cache module is used for the also MBMS user data of no show delivery time of buffer memory;
MBMS content synchronization processing module, the transmitting time of eating dishes without rice or wine that is used for the eNB that carries according to the MBMS user data package is stabbed and differential time stabs and recomputates at IAD place transmission MBMS packet to the moment of eating dishes without rice or wine;
Protocol process module is used to finish the encapsulation of MBMS user data package, and the packet data format in the MBMS user data package is converted to discernible data format among the WLAN;
MBMS user data sending module is used for the delivery time that calculates in described content synchronization processing module, the MBMS user data is sent to eat dishes without rice or wine.
Further, described MBMS service-user data control unit also comprises:
The judgement and the initialization module of MBMS service-user data control unit, be used to judge whether described IAD supports isomery to merge the MBMS business tine synchronizing function that inserts, if support, described MBMS service-user data control unit is carried out merging the MBMS content synchronization initialization procedure that inserts based on isomery; If do not support, described IAD is carried out the initialization procedure of conventional func.
The EPS that merges based on isomery of the present invention supports synchronous method and the device of M BMS business tine, make the MBMS user service data in wlan network, to transmit, when raising wireless resource utility efficiency, reduction provide the MBMS business that cost is provided, guaranteed the content timing of MBMS user service data.And the present invention can not cause extra change and influence to the raw content synchronization scenario in the network.
Description of drawings
Fig. 1 the present invention is based among the EPS that isomery merges to adopt WLAN to realize the function structure of MBMS user data transmission;
Fig. 2 is the schematic diagram of the present invention's MBMS service-user data control unit in the EPS that merges based on isomery;
Fig. 3 is that the function that the present invention is based on MBMS service-user data control unit among the EPS that isomery merges triggers the control logic flow chart;
The schematic diagram of Fig. 4 MBMS content synchronization processing unit that to be the present invention merge based on isomery in the EPS that merges based on isomery;
Fig. 5 the present invention is based on the MBMS content synchronization processing unit function triggering control logic flow chart that isomery merges;
Fig. 6 the present invention is based among the EPS that isomery merges to realize the synchronous method schematic diagram of MBMS business tine;
Fig. 7 is the MBMS content synchronization processing unit that merges based on isomery among the present invention process chart to the MBMS user data package;
Fig. 8 be among the present invention MBMS service-user data control unit to the process chart of MBMS user data;
Fig. 9 is the comparison diagram of the user plane data protocol stack of the user plane data protocol stack of MBMS service-user data control unit of the present invention and existing system;
Figure 10 is the embodiment schematic diagram of the present invention to expanding based on the user PDU frame format of SYNC agreement;
Figure 11 is the MBMS content synchronization processing unit that merges based on isomery among the BM-SC among the present invention processing logic flow chart to SYNC PDU;
Figure 12 be among the present invention the WLAN IAD to the logical process flow chart of SYNC PDU.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.
The EPS that merges based on isomery of the present invention supports the synchronous method of MBMS business tine, and its step mainly comprises:
A, BM-SC receive the MBMS user data that content provider server sends, at first buffer memory does not arrive the MBMS user data of delivery time, will eat dishes without rice or wine to send the timestamp of MBMS user data and IAD then and stab to the differential time of the multi-hop time delay correspondence of terminal access point apparatus experience and write in the synchronous protocol encapsulation of data header of MBMS user data;
B, the MBMS user data that will have a synchronous protocol encapsulation send to IAD;
C, after described IAD receives described MBMS user data, the described MBMS user data of buffer memory at first, eating dishes without rice or wine of carrying in the synchronous protocol encapsulation of data header according to the MBMS user data then sends the timestamp of MBMS user data and IAD and stabs to calculate to the differential time of the multi-hop time delay correspondence of terminal access point apparatus experience the MBMS user data is sent to the moment of eating dishes without rice or wine, and finish the encapsulation of MBMS user data package, packet data format in the MBMS user data package is converted to discernible data format among the WLAN, in the moment that calculates the MBMS user data is sent to and eat dishes without rice or wine.
In addition, can judge earlier also before steps A whether described BM-SC supports isomery to merge the MBMS business tine synchronizing function that inserts,, described BM-SC be supported the initialization procedure of handling based on the MBMS content synchronization of isomery fusion as if supporting; If do not support, described BM-SC is carried out the initialization procedure of conventional func, and in a conventional manner the MBMS user data is identified, encapsulates and transmits.
IAD can judge earlier also whether described IAD supports isomery to merge the MBMS business tine synchronizing function that inserts before receiving described MBMS user data, if support, support isomery to merge the initialization procedure of the MBMS business tine synchronizing function that inserts to described IAD; If do not support, described IAD is carried out the initialization procedure of conventional func.
In order to realize above method, the present invention has introduced MBMS service-user data control unit and has realized.This device provides a logic entity of MBMS user data isomery transmission, and it can place functional entitys such as PDNGW, ePDG, WAG to realize.Fig. 1 shows and adopts WLAN to realize the function structure of the professional transmission of MBMS among the EPS that merges based on isomery.
MBMS service-user data control unit is shown among Fig. 2 200, and it comprises MBMS user data receiver module 201, MBMS user data cache module 202, content synchronization processing module 203, protocol process module 204 and MBMS user data sending module 205.Wherein, MBMS user data receiver module 201 is used to receive the MBMS user data package that sends from the MBMS gateway; MBMS user data cache module 202 is used for the also packet of no show delivery time of buffer memory; The transmitting time of eating dishes without rice or wine that content synchronization processing module 203 is used for the eNB that carries according to the MBMS user data package is stabbed and differential time stabs and recomputates at MBMS service-user data control unit place, i.e. IAD place transmission packet is to the moment of eating dishes without rice or wine; Protocol process module 204 is used to finish the encapsulation function of MBMS user data, this function is converted to discernible data format among the WLAN with the packet data format of MBMS user data, can comprise the interface conversion function of header-compressed information and date link layer protocol simultaneously; MBMS user data sending module 205 is used for the delivery time that calculates in content synchronization processing module 203, these MBMS user data is sent to eat dishes without rice or wine.
Function triggering to MBMS service-user data control unit can adopt the logic flow of Fig. 3 to control.When Access Network is put into capable initialization, judge earlier whether it supports the MBMS business tine synchronizing function that merges based on isomery, if support, then to the MBMS content synchronization initialization procedure of MBMS service-user data control unit function executing based on the isomery fusion; If do not support this function, then carry out conventional initialization procedure.
For MBMS user data content under the function structure that is implemented in above-mentioned EPS system synchronous, also need in BM-SC, introduce one and be called the MBMS content synchronization processing unit that merges based on isomery, this device comprises MBMS user data receiver module 401, MBMS user data cache module 402, MBMS user data content synchronous processing module 403 and MBMS user data sending module 404 shown in 400 among Fig. 4.Wherein, MBMS user data receiver module 401 is used to receive the MBMS user data that sends from content provider server; MBMS user data cache module 402 is used for the MBMS user data that buffer memory does not arrive delivery time; MBMS user data content synchronous processing module 403 is used to calculate the delivery time of MBMS user data package, this module is stabbed according to the transmitting time of eating dishes without rice or wine at eNB place under the former isomorphism access state and the differential time stamp of IAD court of a feudal ruler correspondence during to the multi-hop of terminal access point apparatus calculates, can obtain stabbing, and will formerly eat dishes without rice or wine to send the timestamp of MBMS user data and IAD and write in the synchronous protocol encapsulation of data header of MBMS user data to the differential time stamp of the multi-hop time delay correspondence of terminal access point apparatus experience in the transmitting time of the MBMS of IAD place user data package; MBMS user data sending module 404 is used to send the MBMS user data that has synchronous protocol encapsulation to eNb and the IAD that merges based on isomery.
Whether BM-SC supports the isomery fusion function to trigger control flow by one and realizes that Fig. 5 has provided the logic control flow process figure that this function triggers.When BM-SC is carried out initialization, can judge whether to support that isomery merges the MBMS business tine synchronizing function that inserts, if support this function, then the MBMS content synchronization processing unit that merges based on isomery among the BM-SC is carried out isomery and merge the MBMS content synchronization initialization procedure that inserts, and when follow-up relevant MBMS synchronizing traffic data encapsulates, this MBMS user data is carried out identifying, encapsulating and transmit based on the relevant time stamp of isomery UNE by the MBMS content synchronization processing unit support of merging based on isomery; If be judged as not, then BM-SC carried out the initialization procedure of conventional func, and in a conventional manner the MBMS user service data is identified, encapsulates and transmits.
In the MBMS content synchronization processing unit based on the isomery fusion, the content synchronization realization principle schematic of MBMS user data is seen Fig. 6.Can calculate the delivery time T that eats dishes without rice or wine at eNB place under the isomorphism access state earlier based on the MBMS content synchronization processing unit of isomery fusion, and IAD is to time delay T1, the T2 of terminal access point apparatus, obtain time delay Δ T=T1+T2, the moment t that then sends packet at the IAD place should be T-Δ T, wherein T is the delivery time of eNB place packet, and this differential time stamp Δ T is write in the synchronous protocol encapsulation of MBMS user data package.On IAD, stab Δ T according to former time stamp T and differential time, data can be shifted to an earlier date Δ T and send, can guarantee at WLAN it is the content synchronization of MBMS business datum under the situation of multi-hop like this.
Based on the MBMS content synchronization processing unit based on the isomery fusion newly-increased among the BM-SC, the logic flow that adopts said method to carry out content synchronization can describe respectively by Fig. 7 and Fig. 8.
In Fig. 7, when BM-SC sends the MBMS user data, whether at first this MBMS user data is sent has the UE reception data that isomery merges access to judge, if there is not the UE that isomery merges access to receive data, then the MBMS user data package is handled according to conventional timestamp sign and the encapsulation function of BM-SC; If there is the UE that isomery merges access to receive, then data being sent into the MBMS content synchronization processing unit that merges based on isomery handles, the MBMS user data package is carried out the differential time that conventional timestamp identifies and the isomery fusion brings stab sign and encapsulation, and carry out the transmission of MBMS user data.
In Fig. 8, when IAD receives data, earlier MBMS service-user data are carried out buffer memory, MBMS service-user data control unit is according to two timestamps that carry in the MBMS user data package (based on eat dishes without rice or wine time stamp T and the multi-hop differential time stamp Δ T of eNB) then, calculating sends the delivery time t=T-Δ T of packet from IAD, and at this moment t transmission MBMS user data to eating dishes without rice or wine.
What deserves to be explained is, in the synchronous method of foregoing, when eNB received the MBMS user data package, eNB was still according to the conventional treatment flow process, according to the timestamp that encapsulates in the synchronous protocol, at the moment of timestamp appointment T the MBMS user data package is sent to and to eat dishes without rice or wine to get final product.Therefore, this method can not cause extra change and influence to the raw content synchronization scenario.
Fig. 9 has provided the comparison diagram of the user plane data protocol stack of the user plane data protocol stack of MBMS service-user data control unit of the present invention among the IAD embodiment and existing system.Wherein, the first half is the protocol stack schematic diagram of existing system among the figure, and the latter half is a protocol stack schematic diagram of the present invention.As can be seen, the present invention is in IAD, by increasing relevant protocol stack, to realize the transmission of MBMS business datum.Wherein, protocol stack can be converted to the packet data format in the MBMS user data package discernible data format among the WLAN, can comprise the interface conversion function of header-compressed information and date link layer protocol simultaneously.
When Figure 10 is the access of merging based on isomery that proposes in order to illustrate further the present invention and content synchronization method thereof, several specific embodiments of the expansion of being done at the SYN protocol encapsulation of present 3GPP standard.Particularly, Figure 10 a is based on the expansion that the SYN agreement is carried out TYPE 0 PDU, Figure 10 b is based on the expansion that the SYN agreement is carried out TYPE 1 PDU, Figure 10 c is based on the expansion that the SYN agreement is carried out TYPE 2 PDU, Figure 10 d-1 and Figure 10 d-2 are based on the expansion (according to the SYN agreement, comprising odd/even two kinds of situations of grouping) that the SYN agreement is carried out TYPE 3 PDU respectively.In the drawings, when field 1=000x, it is the PDU form that the SYN agreement was stabbed according to the former isomorphism mode write time, when field 1=100x, show PDU owing to support the framework that isomery merges, carried out the expansion of MBMS user data PDU, promptly add field 2 in control frame end part, be used for carrying the value that differential time stabs, so that IAD utilizes two timestamps to calculate the delivery time that the MBMS user data is being eated dishes without rice or wine when sending data.
Figure 11 is at the SYN agreement, logical process flow process when handling the transmission of MBMS service-user data based on the MBMS content synchronization processing unit of isomery fusion, when BM-SC is ready for sending MBMS service-user data, judge earlier this sends whether the UE reception data that merge access based on isomery are arranged, if have, then the various PDU extended modes that provide according to Figure 10 carry out the expansion sign of field 1 and field 2 are write isomery merging the operation that inserts corresponding differential time stamp at dissimilar PDU; If no, then handle the MBMS user data package, and the MBMS user data is sent according to the requirement of original SYN agreement.
Figure 12 is the control and treatment process of IAD to MBMS service-user data, particularly, IAD receives and buffer memory MBMS service-user data, read two the timestamp value T and the Δ T of SYN agreement control frame head, calculate delivery time in the MBMS of IAD place service-user data, packet is encapsulated again, and in the moment that calculates the MBMS user data is sent to and to eat dishes without rice or wine.
Support synchronous method and the device of M BMS business tine by the above-mentioned EPS that merges based on isomery, realized that the MBMS user service data transmits at wlan network, when raising wireless resource utility efficiency, reduction provide the MBMS operating cost, guaranteed the content timing of MBMS user service data.And the present invention can not cause extra change and influence to the raw content synchronization scenario in the network.
The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited thereto.Being equal to that those skilled in the art are done on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1. the EPS based on fusion supports the synchronous method of MBMS business tine, it is characterized in that, comprising:
A, BM-SC receive the MBMS user data that content provider server sends, and former timestamp of eating dishes without rice or wine to send the MBMS user data and IAD are stabbed to the differential time of the multi-hop time delay correspondence of terminal access point apparatus experience write in the synchronous protocol encapsulation of data header of MBMS user data;
B, the MBMS user data that will have a synchronous protocol encapsulation send to IAD;
After C, described IAD receive described MBMS user data, carry in the synchronous protocol encapsulation of data header according to the MBMS user data stab to calculate to the differential time of the multi-hop time delay correspondence of terminal access point apparatus experience at the timestamp of eating dishes without rice or wine to send the MBMS user data and IAD sends to the moment of eating dishes without rice or wine with the MBMS user data, and finish the encapsulation of MBMS user data package, the packet data format of MBMS user data is converted to discernible data format among the WLAN, in the moment that calculates the MBMS user data is sent to and eat dishes without rice or wine.
2. method according to claim 1 is characterized in that, in the described steps A, after BM-SC received the MBMS user data of content provider server transmission, buffer memory did not arrive the MBMS user data of delivery time.
3. method according to claim 1 is characterized in that, also comprises before the described steps A:
Judge that the MBMS business tine whether described BM-SC support isomery merge to insert is synchronous,, described BM-SC carried out the initialization procedure of the MBMS business tine Synchronous Processing that merges based on isomery if support;
If do not support, described BM-SC is carried out the initialization procedure of conventional func, and in a conventional manner the MBMS user data is identified, encapsulates and transmits.
4. method according to claim 1 is characterized in that, among the described step C, and after IAD receives described MBMS user data, the described MBMS user data of buffer memory at first.
5. method according to claim 1 is characterized in that, among the described step C, IAD also comprises before receiving described MBMS user data:
Judge whether described IAD supports isomery to merge the MBMS business tine synchronizing function that inserts,, described IAD is carried out the initialization procedure that merges the MBMS business tine synchronizing function that inserts based on isomery if support;
If do not support, described IAD is carried out the initialization procedure of conventional func.
6. an EPS who merges based on isomery supports the synchronous device of MBMS business tine, it is characterized in that, comprising:
MBMS content synchronization processing unit, after being used to receive the MBMS user data that content provider server sends, former timestamp of eating dishes without rice or wine to send the MBMS user data and IAD stabbed to the differential time of the multi-hop time delay correspondence of terminal access point apparatus experience writing in the synchronous protocol encapsulation of data header of MBMS user data;
MBMS service-user data control unit, be used for after IAD receives the MBMS user data, carry in the synchronous protocol encapsulation of data header according to the MBMS user data stab to calculate to the differential time of the multi-hop time delay correspondence of terminal access point apparatus experience at the former timestamp of eating dishes without rice or wine to send the MBMS user data and IAD sends to the moment of eating dishes without rice or wine with the MBMS user data, and the control IAD sends to the MBMS user data in this moment and eats dishes without rice or wine.
7. device according to claim 6 is characterized in that, described MBMS content synchronization processing unit comprises:
MBMS user data receiver module is used to receive the MBMS user data that sends from content provider server;
MBMS user data cache module is used for the MBMS user data that buffer memory does not arrive delivery time;
MBMS content synchronization processing module, be used to calculate the delivery time of MBMS user data package, the former timestamp of eating dishes without rice or wine to send the MBMS user data of eNb and IAD are stabbed to the differential time of the multi-hop time delay correspondence of terminal access point apparatus experience write in the synchronous protocol encapsulation of data header of MBMS user data;
MBMS user data sending module is used to send the MBMS user data that has synchronous protocol encapsulation to eNb and the IAD that merges based on isomery.
8. device according to claim 7 is characterized in that, described MBMS content synchronization processing unit also comprises:
The judgement and the initialization module of MBMS content synchronization processing unit, be used to judge whether BM-SC supports isomery to merge the MBMS business tine synchronizing function that inserts, if support, then described MBMS content synchronization processing unit is carried out merging the MBMS content synchronization initialization procedure that inserts based on isomery; If do not support, then described BM-SC is carried out the initialization procedure of conventional func, and in a conventional manner the MBMS user data is identified, encapsulates and transmits.
9. device according to claim 6 is characterized in that, described MBMS service-user data control unit comprises:
MBMS user data receiver module is used for receiving the MBMS user data that sends from the MBMS gateway;
MBMS user data cache module is used for the also MBMS user data of no show delivery time of buffer memory;
The content synchronization processing module, the former transmitting time of eating dishes without rice or wine that is used for the eNB that carries according to the MBMS user data package is stabbed and differential time stabs and recomputates at IAD place transmission packet to the moment of eating dishes without rice or wine;
Protocol process module is used to finish the encapsulation of MBMS user data package, and the packet data format of MBMS user data package is converted to discernible data format among the WLAN;
MBMS user data sending module is used for the delivery time that calculates in described content synchronization processing module, the MBMS user data is sent to eat dishes without rice or wine.
10. device according to claim 9 is characterized in that, described MBMS service-user data control unit also comprises:
The judgement and the initialization module of MBMS service-user data control unit, be used to judge whether described IAD supports isomery to merge the MBMS business tine synchronizing function that inserts, if support, described MBMS service-user data control unit is carried out merging the initialization procedure that inserts based on isomery; If do not support, described IAD is carried out the initialization procedure of conventional func.
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| CN2010102150433A CN101883329B (en) | 2010-07-01 | 2010-07-01 | Method and device for supporting MBMS (Multimedia Broadcast Multicast Service) business content synchronization based on integrated EPS (Evolved Packet System) |
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| CN2010102150433A CN101883329B (en) | 2010-07-01 | 2010-07-01 | Method and device for supporting MBMS (Multimedia Broadcast Multicast Service) business content synchronization based on integrated EPS (Evolved Packet System) |
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| Publication Number | Publication Date |
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| CN101883329B CN101883329B (en) | 2012-11-14 |
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