CN101414959A - System, method and apparatus for synchronizing TDD multimedia broadcast and multicast service - Google Patents
System, method and apparatus for synchronizing TDD multimedia broadcast and multicast service Download PDFInfo
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Abstract
The invention discloses a time division duplex multimedia broadcast multicast service synchronizing entity, a system and a method thereof, so as to realize the synchronization of time division duplex (TDD) multimedia broadcast multicast service (MBMS). The invention provides an uniform resource distribution data sending entity which comprises a resource distribution unit and a data synchronizing unit; wherein, the resource distribution unit is used for distributing the same resource to all radio network controllers (RNC) in a network that the entity is located for the same multimedia broadcast multicast service (MBMS); the data synchronizing unit is used for indicating each RNC to send MBMS service data in a same reference CFN. The invention also discloses a TDD MBMS synchronizing system and a method thereof.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of TDD multimedia broadcast multicast services synchronous system, method and device.
Background technology
In MBSFN (Multicast Broadcast Single Frequency Network, multicast broadcast single frequency network network) to synchronous having relatively high expectations.TDD in the prior art (Time Division Duplex, time division duplex) system can accomplish that the MBSFN under a RNC (Radio Network Controller, radio network controller) is synchronous.
MBMS (Multimedia Broadcast Multicast Service, multimedia broadcast multicast services) the whole network need solve synchronously that physical frame is synchronous, resource distribution synchronously and data send the problem of these three aspects synchronously.
Because the TDD system adopts GPS (Global Positioning System, global positioning system) synchro system, so think that the physical frame between the whole network can guarantee synchronously.
For resource distribution synchronously and data send synchronous two aspects and need further consider.
What resource distribution will be done synchronously is that identical MBMS business is distributed identical resource at different RNC, comprise: configuration, the frequency resource of physical layer, time slot, code channel that layer is two layer three, referring to shown in Figure 1, the same MBMS business that so just can be implemented under the different RNC merges eating dishes without rice or wine.
CN (Core Network, core net) sends the data of MBMS business to RNC, and RNC independently determines the distribution of resource and sends data according to MBMS business data transmission required time and current resource allocation conditions.
Data send will guarantee that synchronously identical MBMS data will send in identical radio frames.The flow process of the transfer of data of UTRAN (Universal Terrestrial Radio Access Network, universal land radio access web) is as follows:
Referring to shown in Figure 2, when transferring MBMS service data, UTRAN is from Iu (Interface Unit, interface unit) mouth is received the business datum that CN issues, issue PDCP (the Packet DataConvergence Protocol that this business is shared, packet data polymerized agreement) and RLC (Radio Link Control, Radio Link control) entity, transmit to the media access control MAC-m entity of each sub-district by the RLC entity, MAC-m by each sub-district disposes CFN (Connection Frame Number then, Connection Frame Number) and send to corresponding NodeB, NodeB obtains to eat dishes without rice or wine transmitting time according to the CFN of SFN (Cell System Frame Number, sub-district frame number) and configuration.
When sending, for guaranteeing each sub-district emission data synchronization, RLC needs and a plurality of MAC-m entity interaction temporal information, specify each sub-district to send the transmitting time of identical services data then, after each sub-district MAC-m entity is received data, after launch time business datum being added the MAC head, send to FP (FrameProtocol, Frame Protocol).
The inventor finds in the invention process, prior art can not realize resource allocation under the different RNCs synchronously, also just cannot be in the merging of eating dishes without rice or wine to do physical layer.And prior art can only be implemented under the RNC MBMS data synchronization and send, and can not be implemented in that data synchronization sends under the different RNC, just can not carry out the data merging like this between different RNC.For identical MBMS data SFN zone, because data can not merge in different RNC, just can only regard interference as, make the sub-district reception of SFN fringe region very bad.The reception that obtains, just require that data can merge in different RNC, realize that promptly MBSFN is synchronous, and the MBSFN under the different RNCs must guarantee that synchronously the data transmission is synchronous under different RNC, therefore prior art has no idea to guarantee that MBSFN is synchronous in different RNC, can not realize that the whole network of TDD MBMS is synchronous.
Summary of the invention
The embodiment of the invention provides a kind of unified resource distribute data sending entity, and is synchronous to realize TDD MBMS's.
The unified resource distribute data sending entity of the embodiment of the invention comprises:
Resource allocation unit is used to all radio network controller (RNC)s in this entity place network to distribute identical resource for identical multimedia broadcast multicast services MBMS business;
Data synchronisation unit is used to indicate each described RNC to send described MBMS business datum at same reference connection frame number CFN.
The embodiment of the invention also provides a kind of radio network controller, comprising:
Receiving element is used to receive unified resource assignment information, MBMS business datum and benchmark CFN;
Transmitting element is used for sending described MBMS business datum with the resource of unified distribution at this benchmark CFN.
The embodiment of the invention also provides a kind of TDD multimedia broadcast multicast services synchronous system, comprising: unified resource distribute data sending entity, and all RNC in this unified resource distribute data sending entity place network.
Comprise in the described unified resource distribute data sending entity:
Resource allocation unit is used to all RNC in this entity place network to distribute identical resource for identical MBMS business;
Data synchronisation unit is used to indicate each described RNC to send described MBMS business datum at this benchmark CFN.
Comprise among the described RNC:
Receiving element is used to receive unified resource assignment information, MBMS business datum and benchmark CFN;
Transmitting element is used for sending described MBMS business datum with the resource of unified distribution at this benchmark CFN.
The embodiment of the invention also provides a kind of TDD multimedia broadcast multicast services synchronous method, comprises the following steps:
For identical MBMS business is that all RNC in the consolidated network distribute identical resource;
Indicate each described RNC to send described MBMS business datum at this benchmark CFN.
In sum, the embodiment of the invention by and all RNC between mutual, realize unified distribution of the resource of all RNC and data sync are sent: in unified resource is distributed, be the identical resource of all RNC distribution in the consolidated network for identical MBMS business; In data send synchronously, indicate each described RNC to send described MBMS business datum at same benchmark CFN.Therefore, the present invention can solve the synchronous problem that can not realize the synchronous TDD MBMS of TDD multimedia broadcast multicast services in the prior art.
Description of drawings
Fig. 1 is the schematic diagram of resource distribution in the prior art;
Fig. 2 is the flow chart of the transfer of data of MBMS business in the prior art;
Fig. 3 is the structural representation one of unified resource distribute data sending entity in the embodiment of the invention;
Fig. 4 is the structural representation two of unified resource distribute data sending entity in the embodiment of the invention;
Fig. 5 does expansion to carry the schematic diagram of CFN in the embodiment of the invention in the User Part protocol data unit frame type 0 of Iu interface;
Fig. 6 does expansion to carry the schematic diagram of CFN in the embodiment of the invention at the User Part protocol data unit frame Class1 of Iu interface;
Fig. 7 is the structural representation one of radio network controller in the embodiment of the invention;
Fig. 8 is the structural representation two of radio network controller in the embodiment of the invention;
Fig. 9 is the schematic network structure of the synchronous system of TDD MBMS in the embodiment of the invention;
Figure 10 is the synchronous method flow diagram of TDD MBMS in the embodiment of the invention;
Figure 11 is the method flow diagram that unified resource is distributed in the embodiment of the invention;
Figure 12 is the method flow diagram that data sync sends in the embodiment of the invention.
Embodiment
In order to realize the synchronous of TDD MBMS, the embodiment of the invention provides a kind of unified resource distribute data sending entity, and the structure of this entity comprises referring to shown in Figure 3:
Resource allocation unit is used to all radio network controller (RNC)s in this entity place network to distribute identical resource for identical multimedia broadcast multicast services MBMS business;
Data synchronisation unit is used to indicate each described RNC to send described MBMS business datum at same benchmark CFN.
Referring to shown in Figure 4, comprise in the described resource allocation unit:
Obtain subelement, be used for each described RNC alternately, obtain the relevant information of the MBMS business datum of the current transmission of each described RNC respectively.
Can also comprise in the described resource allocation unit: ranking score gamete unit, be used for obtaining all information that subelement obtains according to described, resource occupation grade for each MBMS traffic assignments correspondence, and be issued to each described RNC, comprise in the promptly described resource allocation unit and obtain subelement or comprise simultaneously and obtain subelement and ranking score gamete unit.The structural representation of the unified resource distribute data sending entity of Fig. 4 is to obtain subelement and ranking score gamete unit is an example to comprise simultaneously in the described resource allocation unit.
Comprise in the described data synchronisation unit:
First determines subelement, is used for arriving according to the data that this entity sends time delay and the current data transmission situation of each described RNC of each described RNC, determines that current each described RNC sends shared CFN of described MBMS business datum and output;
Second determines subelement, is used to receive described first and determines that current each described RNC of subelement output sends the shared CFN of described MBMS business datum, gets maximum CFN wherein, and selects arbitrary CFN more than or equal to this maximum CFN as benchmark CFN.
Also comprise in the described data synchronisation unit:
The expansion subelement, be used to expand the message between unified resource distribute data sending entity and the RNC, issue to each described RNC to carry described benchmark CFN, be not limited to expand user's face of Iu interface, be not limited to expand the frame type 0 or the frame type 1 of user's face of Iu interface.
Respectively described entity unified distribution resource and synchronized transmission data are described in detail below.
In unified resource is distributed, describedly obtain subelement and each described RNC is mutual, send apply for information to each described RNC, inquire the distribution and the operating position of the current resource of this RNC, the described inquiry of obtaining subelement of this RNC response, and feed back the current resource operating position of this RNC to the described subelement that obtains, the professional corresponding resource occupation grade of the current MBMS that is sending (for optional), and also need how long just can finish these information that send, describedly obtain the relevant information that subelement obtains the MBMS business datum of the current transmission of these each described RNC respectively.
If some RNC does not respond described inquiry of obtaining subelement for a long time, the described subelement that obtains will be once more sends apply for information to this RNC, with the relevant information of the MBMS business datum of obtaining the current transmission of this RNC.
Described ranking score gamete unit according to obtaining all information that subelement obtains, is the resource occupation grade of each MBMS traffic assignments correspondence, and is issued to each described RNC.If some RNC does not respond described inquiry of obtaining subelement for a long time, ranking score gamete unit will take grade and send to this RNC to adequate resources of MBMS traffic assignments of described RNC.
Described resource allocation unit obtains the information that subelement obtains and carries out the resource unified distribution according to described, comprises the frequency, time slot, code channel of configuration, the physical layer of two layer three on layer etc.When the resource allocation of the MBMS business of the professional and relative high resource occupation grade of the MBMS of low relatively resource occupation grade contradicts, the resource allocation of the MBMS business of the resource occupation grade that described resource allocation unit cancellation is low relatively is the MBMS business of resource allocation to high relatively resource occupation grade.
For example, if the professional corresponding resource occupation grade of the MBMS of the current transmission of some RNC is lower than the professional corresponding resource occupation grade of new MBMS, and taken the resource of described new MBMS business, RNC will discharge these resources so, give described new MBMS business with these resource allocations, and preserve the data and the notifying user equipment UE of the MBMS business of described current transmission, these resource allocations are given the described MBMS business of preserving at a reasonable time.
After unified resource distribute data sending entity is distributed unitedly resource alternately according to all RNC with this entity place network, continue to send with the realization data sync alternately with described RNC.
Described first determines that subelement according to recording the transmission situation of data that data that described entity sends arrive the MBMS business of the time delay of different RNCs and current described RNC, determines that current each described RNC sends the shared CFN of described MBMS business datum.
Because two layer of three entity of all relevant layers all is unified configuration, all keeps same reference connection frame number CFN so can guarantee all relevant MAC-m.In the described data synchronisation unit second determines that subelement obtains the described first maximum CFN that determines among the CFN that subelement determines, and selects arbitrary CFN more than or equal to this maximum CFN as benchmark CFN.
Described expansion subelement can be expanded the frame type 0 or the frame type 1 of user's face of Iu interface, issues to each described RNC to carry described benchmark CFN, indicates each described RNC to send described MBMS business datum at this benchmark CFN.
Referring to Fig. 5 and shown in Figure 6, at user's face PDU of Iu interface (Protocol Data Unit, protocol Data Unit) frame type 0 or frame type 1 are done expansion, for example expand in Connection Frame Number (CFN that increases a byte after last byte at the frame control section is used for representing which CFN this frame need send at) or the reserved block in frame net load part at frame control section (Frame ControlPart) and carry benchmark CFN.
Described data synchronisation unit sends the data (at this moment PDU carries described benchmark CFN) of MBMS business to all RNC of described entity place network on the frame type 0 of protocol Data Unit PDU of expansion or frame type 1, the data of each described RNC synchronized transmission MBMS business on the described benchmark CFN that described data synchronisation unit is determined, realization TDD MBMS's is synchronous.
Unified resource distribute data sending entity not only sends the data of MBMS business get off, also the information that unified resource is distributed carries, so just can guarantee that each RNC distributes identical resource for identical MBMS business, and guarantee them in air interface synchronization, therefore the identical MBMS business under different RNCs also can be in the merging of eating dishes without rice or wine.
To sum up, the unified resource distribute data sending entity that the embodiment of the invention provides, by and this entity place network in all RNC between mutual, realize resource unified distribution and the data sync of all RNC are sent.In unified resource is distributed, described ranking score gamete unit is the resource occupation grade of each MBMS traffic assignments correspondence, when the resource allocation that takies the MBMS business of the professional and high resource occupation grade of the MBMS of grade when low-resource contradicts, described resource allocation unit cancellation low-resource takies the resource allocation of the MBMS business of grade, resource allocation is given the MBMS business of high resource occupation grade.In data send synchronously, time delay and the current data of each described RNC that the data that described first definite subelement sends according to this entity arrive each described RNC send situation, determine that current each described RNC sends the shared CFN of described MBMS business datum, described second determines that subelement gets maximum CFN wherein, and selects arbitrary CFN more than or equal to this maximum CFN as benchmark CFN; Message between described expansion subelement expansion unified resource distribute data sending entity and the RNC, to carry described benchmark CFN, be not limited to do expansion at Iu user's face PDU frame type 0 or frame type 1, make PDU can carry benchmark CFN, described data synchronisation unit indicates each described RNC to send described MBMS business datum at this benchmark CFN, reaches the purpose that data sync sends.The unified resource distribute data sending entity that adopts the embodiment of the invention to provide can solve the synchronous problem that can not realize TDD MBMS in the prior art.
The embodiment of the invention also provides a kind of radio network controller, referring to shown in Figure 7, comprising:
Receiving element is used to receive unified resource assignment information, MBMS business datum and benchmark CFN;
Transmitting element is used for sending described MBMS business datum with the resource of unified distribution at this benchmark CFN.
Comprise in the unified resource assignment information that described receiving element is received: the professional corresponding resource occupation class information of each MBMS.
Referring to shown in Figure 8, described radio network controller also comprises: adjustment unit is used for adjusting the resource occupation grade of the MBMS business datum of current transmission according to described resource occupation class information.
Comprise in the described adjustment unit:
The recognin unit, the real resource that is used to discern the MBMS business datum of current transmission takies grade;
Subelement relatively is used for resource occupation grade that real resource with the MBMS business datum of current transmission takies the MBMS business to be sent that grade and the resource occupation class information of receiving according to receiving element determine relatively, and the output comparative result;
Carry out subelement, be used for the comparative result of relatively subelement output for less than the time, the resource that the MBMS business datum of current transmission is taken discharges, and preserves this MBMS business datum.
Respectively described radio network controller is described in detail below.
Described receiving element receives unified resource assignment information, MBMS business datum and the benchmark CFN that described unified resource distribute data sending entity sends, and export to described transmitting element and described adjustment unit, comprise the professional corresponding resource occupation class information of each MBMS in the described unified resource assignment information.
Described adjustment unit is adjusted the resource occupation grade of the MBMS business datum of current transmission according to described resource occupation class information.
Wherein, the real resource that the MBMS business datum of the current transmission of described entity that described receiving element receives is discerned in described recognin unit takies grade, and exports to described relatively subelement.
The resource occupation grade that the real resource of the MBMS business datum of the current transmission that described relatively subelement will receive from described recognin unit takies the MBMS business to be sent that grade and the resource occupation class information of receiving according to receiving element determine compares, and comparative result is exported to described execution subelement.
Described execution subelement the comparative result of described relatively subelement output be less than the time, the resource release that the MBMS business datum of current transmission is taken, and preserve this MBMS business datum.
Described transmitting element sends at the described benchmark CFN of described receiving element output the described MBMS business datum of described receiving element output with the resource of distributing unitedly.
The embodiment of the invention also provides a kind of TDD MBMS synchronous system, referring to shown in Figure 9, comprising: unified resource distribute data sending entity, and all radio network controller (RNC)s in this unified resource distribute data sending entity place network.
Described unified resource distribute data sending entity also comprises:
Resource allocation unit is used to all radio network controller (RNC)s in this entity place network to distribute identical resource for identical multimedia broadcast multicast services MBMS business;
Data synchronisation unit is used to indicate each described RNC to send described MBMS business datum at same benchmark CFN.
Comprise in the described resource allocation unit:
Obtain subelement, be used for each described RNC alternately, obtain the relevant information of the MBMS business datum of the current transmission of each described RNC respectively;
Can also comprise in the described resource allocation unit:
Ranking score gamete unit is used for being the resource occupation grade of each MBMS traffic assignments correspondence, and being issued to each described RNC according to obtaining all information that subelement obtains.
Comprise in the described data synchronisation unit in the described entity:
First determines subelement, is used for arriving according to the data that this entity sends time delay and the current data transmission situation of each described RNC of each described RNC, determines that current each described RNC sends shared CFN of described MBMS business datum and output;
Second determines subelement, be used to receive described first and determine that current each described RNC that subelement is determined sends the shared Connection Frame Number CFN of described MBMS business datum, get maximum CFN wherein, and select arbitrary CFN more than or equal to this maximum CFN as benchmark CFN.
Also comprise in the described data synchronisation unit in the described entity:
The expansion subelement is used to expand the message between unified resource distribute data sending entity and the RNC, to carry described benchmark CFN, is not limited to expand the frame type 0 or the frame type 1 of user's face of Iu interface, issues to each described RNC to carry described benchmark CFN.
Described radio network controller comprises:
Receiving element is used to receive unified resource assignment information, MBMS business datum and benchmark CFN;
Transmitting element is used for sending described MBMS business datum with the resource of unified distribution at this benchmark CFN.
Comprise in the unified resource assignment information that described receiving element is received: the professional corresponding resource occupation class information of each MBMS, then described radio network controller also comprises: adjustment unit, be used for adjusting the resource occupation grade of the MBMS business datum of current transmission according to described resource occupation class information.
Comprise in the described adjustment unit:
The recognin unit, the real resource that is used to discern the MBMS business datum of current transmission takies grade;
Subelement relatively is used for resource occupation grade that real resource with the MBMS business datum of current transmission takies the MBMS business to be sent that grade and the resource occupation class information of receiving according to receiving element determine relatively, and the output comparative result;
Carry out subelement, be used for the comparative result of relatively subelement output for less than the time, the resource that the MBMS business datum of current transmission is taken discharges, and preserves this MBMS business datum.
Respectively unified distribution resource in the described system and synchronized transmission data are described in detail below.
In the unified resource of described system is distributed, describedly obtain subelement and each described RNC is mutual, send apply for information to each described RNC, inquire the distribution and the operating position of the current resource of this RNC, the described inquiry of obtaining subelement of this RNC response, and feed back the current resource operating position of this RNC to the described subelement that obtains, the professional corresponding resource occupation grade of the current MBMS that sending (for optional) and also need how long just can finish these information of transmission is describedly obtained the relevant information that subelement obtains the MBMS business datum of the current transmission of these each described RNC respectively.
If some RNC does not respond described inquiry of obtaining subelement for a long time, the described subelement that obtains will be once more sends apply for information to this RNC, with the relevant information of the MBMS business datum of obtaining the current transmission of this RNC.
Described ranking score gamete unit according to obtaining all information that subelement obtains, is the resource occupation grade of each MBMS traffic assignments correspondence, and promptly an adequate resources takies grade, and is issued to each described RNC.If some RNC does not respond described inquiry of obtaining subelement for a long time, ranking score gamete unit will take grade and send to this RNC to adequate resources of MBMS traffic assignments of described RNC.
Described resource allocation unit obtains the information that subelement obtains and carries out the resource unified distribution according to described, comprises the frequency, time slot, code channel of configuration, the physical layer of two layer three on layer etc.When the resource allocation of the MBMS business of the professional and relative high resource occupation grade of the MBMS of low relatively resource occupation grade contradicts, the resource allocation of the MBMS business of the resource occupation grade that described resource allocation unit cancellation is low relatively is the MBMS business of resource allocation to high relatively resource occupation grade.
For example, if the professional corresponding resource occupation grade of the MBMS of the current transmission of some RNC is lower than the professional corresponding resource occupation grade of new MBMS, and taken the resource of described new MBMS business, RNC will discharge these resources so, give described new MBMS business with these resource allocations, and preserve described current transmission the MBMS business data and notify UE, the described MBMS business of these resource allocations give being preserved at a reasonable time.
Unified resource distribute data sending entity basis in the described system continues to send with the realization data sync alternately with described RNC after alternately resource being distributed unitedly with all RNC in the described system.
Described first determines that subelement according to recording the transmission situation of data that data that described entity sends arrive the MBMS business of the time delay of different RNCs and current described RNC, determines that current each described RNC sends the shared CFN of described MBMS business datum.
Because two layer of three entity of all relevant layers all is unified configuration, all keeps same reference connection frame number CFN so can guarantee all relevant MAC-m.
Described second determines subelement, receive described first and determine that current each described RNC that subelement is determined sends the shared Connection Frame Number CFN of described MBMS business datum, get maximum CFN wherein, and select arbitrary CFN more than or equal to this maximum CFN as benchmark CFN.
Described expansion subelement can be expanded the frame type 0 or the frame type 1 of user's face of Iu interface, issues to each described RNC to carry described benchmark CFN, indicates each described RNC to send described MBMS business datum at this benchmark CFN.
Referring to Fig. 5 and shown in Figure 6, frame type 0 or frame type 1 at user's face PDU of Iu interface are done expansion, for example expand in Connection Frame Number (CFN that increases a byte after last byte at the frame control section is used for representing which CFN this frame need send at) or the reserved block in frame net load part at frame control section (Frame Control Part) and carry benchmark CFN.
Described data synchronisation unit sends the data (at this moment PDU carries described benchmark CFN) of MBMS business to all RNC of described entity place network on the frame type 0 of PDU of expansion or frame type 1.
Described receiving element receives unified resource assignment information, MBMS business datum and the benchmark CFN that described unified resource distribute data sending entity sends, and export to described transmitting element and described adjustment unit, comprise the professional corresponding resource occupation class information of each MBMS in the described unified resource assignment information.
Described adjustment unit is adjusted the resource occupation grade of the MBMS business datum of current transmission according to described resource occupation class information.Wherein, the real resource that the MBMS business datum of the current transmission of described entity that described receiving element receives is discerned in described recognin unit takies grade, and exports to described relatively subelement.The resource occupation grade that the real resource of the MBMS business datum of the current transmission that described relatively subelement will receive from described recognin unit takies the MBMS business to be sent that grade and the resource occupation class information of receiving according to receiving element determine compares, and comparative result is exported to described execution subelement.Described execution subelement the comparative result of described relatively subelement output be less than the time, the resource release that the MBMS business datum of current transmission is taken, and preserve this MBMS business datum.
Described transmitting element sends at the described benchmark CFN of described receiving element output the described MBMS business datum of described receiving element output with the resource of distributing unitedly.
Unified resource distribute data sending entity in the described system not only sends the data of MBMS business get off, also the information of the unified distribution of the resource in the system is carried, so just can guarantee that each RNC distributes identical resource for identical MBMS business, and guarantee them in air interface synchronization, therefore the identical MBMS business under different RNCs also can be in the merging of eating dishes without rice or wine.
In sum, the synchronous system of TDD MBMS that the embodiment of the invention provides, mutual by between the unified resource distribute data sending entity in the described system and all RNC in the described system realized resource unified distribution and the data sync of all RNC are sent.During unified resource in described system is distributed, described ranking score gamete unit is the resource occupation grade of each MBMS traffic assignments correspondence, when the resource allocation that takies the MBMS business of the professional and high resource occupation grade of the MBMS of grade when low-resource contradicts, described resource allocation unit cancellation low-resource takies the resource allocation of the MBMS business of grade, resource allocation is given the MBMS business of high resource occupation grade.During data in described system send synchronously, time delay and the current data of each described RNC that the data that described first definite subelement sends according to this entity arrive each described RNC send situation, determine that current each described RNC sends the shared CFN of described MBMS business datum, described second determines that subelement gets maximum CFN wherein, and selects arbitrary CFN more than or equal to this maximum CFN as benchmark CFN; Message between described expansion subelement expansion unified resource distribute data sending entity and the RNC, to carry described benchmark CFN, be not limited to do expansion at Iu user's face PDU frame type 0 or frame type 1, make PDU can carry benchmark CFN, described data synchronisation unit indicates each described RNC to send described MBMS business datum at this benchmark CFN, reaches the purpose that data sync sends.The synchronous system of TDD MBMS that adopts the embodiment of the invention to provide can solve the synchronous problem that system of the prior art can not realize TDD MBMS.
The embodiment of the invention also provides a kind of TDD MBMS synchronous method, referring to shown in Figure 10, comprises the following steps:
S101, be that all RNC distributes identical resource for identical MBMS business;
S102, indicate each described RNC to send described MBMS business datum at same benchmark CFN.
Method step to resource unified distribution and data sync transmission is described in detail below.
By carrying out alternately, realize resource unified distribution to all RNC with all RNC.
Referring to shown in Figure 11, the method concrete steps of carrying out the unified resource distribution are as follows:
Step 101: mutual with each described RNC, send apply for information to each described RNC, inquire the distribution and the operating position of the current resource of this RNC.
Step 102: this RNC response inquiry, and feed back the current resource operating position of this RNC, the professional corresponding resource occupation grade (optional) of the current MBMS that is sending and also need how long just can finish these information of transmission, obtain the relevant information of the MBMS business datum of the current transmission of these each described RNC respectively.
Step 103: if some RNC not response for a long time will be mutual with this RNC once more, with the relevant information of the MBMS business datum of obtaining the current transmission of this RNC.
Step 104: carry out resource unified distribution according to the information of obtaining, comprise the frequency, time slot, code channel of configuration, the physical layer of two layer three on layer etc.
Step 105: according to all information of obtaining, be the resource occupation grade of each MBMS traffic assignments correspondence, and be issued to each described RNC.
Step 106: if some RNC not response for a long time will take grade and send to this RNC to adequate resources of MBMS traffic assignments of described RNC.
Step 107: when the resource allocation of the MBMS business of the professional and relative high resource occupation grade of the MBMS of low relatively resource occupation grade contradicts, cancel the resource allocation of the MBMS business of low relatively resource occupation grade, resource allocation is given the MBMS business of high relatively resource occupation grade.
For example, if the professional corresponding resource occupation grade of the MBMS of the current transmission of some RNC is lower than the professional corresponding resource occupation grade of new MBMS, and taken the resource of described new MBMS business, RNC will discharge these resources so, give described new MBMS business with these resource allocations, and preserve described current transmission the MBMS business data and notify UE, send the data of described preservation at a reasonable time.
After alternately resource being distributed unitedly with all RNC, continue with described RNC alternately to realize that data sync sends.
Referring to shown in Figure 12, the method concrete steps of synchronized transmission data are as follows:
Step 201: mutual with described RNC, resource is distributed unitedly.
Step 202: the time delay and the current data of each described RNC that arrive each described RNC according to data send situation, determine that current each described RNC sends the shared Connection Frame Number CFN of described MBMS business datum.
Step 203: get the maximum CFN among the described CFN, and select arbitrary CFN more than or equal to this maximum CFN as benchmark CFN.
Because two layer of three entity of all relevant layers all is unified configuration, all keeps same reference connection frame number CFN so can guarantee all relevant MAC-m.
Step 204: the frame type 0 or the frame type 1 of user's face of expansion Iu interface, issue (the user's face that is not limited to expand the Iu interface carries described benchmark CFN, also can expand other message between unified resource distribute data sending entity and the RNC) to carry described benchmark CFN to each described RNC.
Referring to Fig. 5 and shown in Figure 6, frame type 0 or frame type 1 at user's face PDU of Iu interface are done expansion, expand in Connection Frame Number (CFN that increases a byte after last byte at the frame control section is used for representing which CFN this frame need send at) or the reserved block in frame net load part at frame control section (Frame Control Part) and carry benchmark CFN.
Step 205: the data of each described RNC synchronized transmission MBMS business on the described benchmark CFN of appointment.
Each described RNC sends MBMS data (at this moment PDU carries described benchmark CFN) on PDU frame type of expanding 0 or frame type 1, realization TDD MBMS's is synchronous.
Therefore, adopt the method for the embodiment of the invention, not only the data of MBMS business are sent, also the information that unified resource is distributed carries, so just can guarantee that each RNC distributes identical resource for identical MBMS business, and guarantee them in air interface synchronization, therefore the identical MBMS business under different RNCs also can be in the merging of eating dishes without rice or wine.
In sum, the synchronous method of TDD MBMS that the embodiment of the invention provides, by and all RNC between mutual, realize resource unified distribution and the data sync of all RNC are sent.In the step that unified resource is distributed, resource occupation grade for each MBMS traffic assignments correspondence, when the resource allocation that takies the MBMS business of the professional and high resource occupation grade of the MBMS of grade when low-resource contradicts, the cancellation low-resource takies the resource allocation of the MBMS business of grade, resource allocation is given the MBMS business of high resource occupation grade.Send in the synchronous step in data, determine that current each described RNC sends the shared Connection Frame Number CFN of described MBMS business datum, get maximum CFN wherein, and select arbitrary CFN more than or equal to this maximum CFN as benchmark CFN.Do expansion (being not limited to expand Iu user's face) at Iu user's face PDU frame type 0 or with frame type 1, make PDU can carry CFN, indicate each described RNC to send described MBMS business datum at this benchmark CFN.
The synchronous method of TDD MBMS that adopts the embodiment of the invention to provide can solve the synchronous problem that can not realize TDD MBMS in the prior art.
The embodiment of the invention is applicable to that also other have the entity of RNC function.Be that RNC in the embodiment of the invention can be equivalent to the entity that other can realize correlation function.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (18)
1, a kind of unified resource distribute data sending entity is characterized in that, comprising:
Resource allocation unit is used to all radio network controller (RNC)s in this entity place network to distribute identical resource for identical multimedia broadcast multicast services MBMS business;
Data synchronisation unit is used to indicate each described RNC to send described MBMS business datum at same reference connection frame number CFN.
2, entity as claimed in claim 1 is characterized in that, comprises in the described resource allocation unit:
Obtain subelement, be used for each described RNC alternately, obtain the relevant information of the MBMS business datum of the current transmission of each described RNC respectively.
3, entity as claimed in claim 2 is characterized in that, comprises in the described resource allocation unit:
Ranking score gamete unit is used for obtaining the information that subelement obtains according to described, is the resource occupation grade of each MBMS traffic assignments correspondence, and is issued to each described RNC.
4, entity as claimed in claim 1 is characterized in that, comprises in the described data synchronisation unit:
First determines subelement, is used for arriving according to the data that this entity sends time delay and the current data transmission situation of each described RNC of each described RNC, determines that current each described RNC sends shared CFN of described MBMS business datum and output;
Second determines subelement, is used to receive described first and determines that current each described RNC of subelement output sends the shared CFN of described MBMS business datum, gets maximum CFN wherein, and selects arbitrary CFN more than or equal to this maximum CFN as benchmark CFN.
5, as the arbitrary described entity of claim 1 to 4, it is characterized in that, comprise in the described data synchronisation unit:
The expansion subelement is used to expand the frame type 0 or the frame type 1 of user's face of Iu interface, issues to each described RNC to carry described benchmark CFN.
6, a kind of radio network controller is characterized in that, comprising:
Receiving element is used to receive unified resource assignment information, MBMS business datum and benchmark CFN;
Transmitting element is used for sending described MBMS business datum with the resource of unified distribution at this benchmark CFN.
7, radio network controller as claimed in claim 6 is characterized in that, comprises in the unified resource assignment information that described receiving element is received: the professional corresponding resource occupation class information of each MBMS, then
Described radio network controller also comprises: adjustment unit is used for adjusting the resource occupation grade of the MBMS business datum of current transmission according to described resource occupation class information.
8, radio network controller as claimed in claim 7 is characterized in that, comprises in the described adjustment unit:
The recognin unit, the real resource that is used to discern the MBMS business datum of current transmission takies grade;
Subelement relatively is used for resource occupation grade that real resource with the MBMS business datum of current transmission takies the MBMS business to be sent that grade and the resource occupation class information of receiving according to receiving element determine relatively, and the output comparative result;
Carry out subelement, be used for the comparative result of relatively subelement output for less than the time, the resource that the MBMS business datum of current transmission is taken discharges, and preserves this MBMS business datum.
9, the synchronous system of a kind of TDD multimedia broadcast multicast services is characterized in that, comprising: unified resource distribute data sending entity, and all RNC in this unified resource distribute data sending entity place network,
Comprise in the described unified resource distribute data sending entity:
Resource allocation unit is used to all RNC in this entity place network to distribute identical resource for identical MBMS business;
Data synchronisation unit is used to indicate each described RNC to send described MBMS business datum at same benchmark CFN;
Comprise among the described RNC:
Receiving element is used to receive unified resource assignment information, MBMS business datum and benchmark CFN;
Transmitting element is used for sending described MBMS business datum with the resource of unified distribution at this benchmark CFN.
10, system as claimed in claim 9 is characterized in that, comprises in the resource allocation unit in the described unified resource distribute data sending entity:
Obtain subelement, be used for each described RNC alternately, obtain the relevant information of the MBMS business datum of the current transmission of each described RNC respectively.
11, system as claimed in claim 10 is characterized in that, comprises in the resource allocation unit in the described unified resource distribute data sending entity:
Ranking score gamete unit is used for obtaining the information that subelement obtains according to described, is the resource occupation grade of each MBMS traffic assignments correspondence, and is issued to each described RNC.
12, system as claimed in claim 9 is characterized in that, comprises in the data synchronisation unit in the described unified resource distribute data sending entity:
First determines subelement, is used for arriving according to the data that this entity sends time delay and the current data transmission situation of each described RNC of each described RNC, determines that current each described RNC sends shared Connection Frame Number CFN of described MBMS business datum and output;
Second determines subelement, is used to receive described first and determines that current each described RNC of subelement output sends the shared CFN of described MBMS business datum, gets maximum CFN wherein, and selects arbitrary CFN more than or equal to this maximum CFN as benchmark CFN.
13, as the arbitrary described system of claim 9 to 12, it is characterized in that, comprise in the data synchronisation unit in the described unified resource distribute data sending entity:
The expansion subelement is used to expand the frame type 0 or the frame type 1 of user's face of Iu interface, issues to each described RNC to carry described benchmark CFN.
14, system as claimed in claim 9, it is characterized in that, comprise in the unified resource assignment information that receiving element among the described RNC is received: the professional corresponding resource occupation class information of each MBMS, then described RNC also comprises: adjustment unit, be used for adjusting the resource occupation grade of the MBMS business datum of the current transmission of this RNC according to described resource occupation class information.
15, the synchronous method of a kind of TDD multimedia broadcast multicast services is characterized in that, comprises the following steps:
For identical MBMS business is that all RNC in the consolidated network distribute identical resource;
Indicate each described RNC to send described MBMS business datum at same benchmark CFN.
16, method as claimed in claim 15 is characterized in that, also comprises the following steps:
Obtain the relevant information of the MBMS business datum of the current transmission of each described RNC respectively, and, be the resource occupation grade of each MBMS traffic assignments correspondence, and be issued to each described RNC according to the information of obtaining;
Each described RNC adjusts the resource occupation grade of the MBMS business datum of current transmission according to the professional corresponding resource occupation grade of each MBMS.
17, method as claimed in claim 15, it is characterized in that, the time delay and the current data of each described RNC that arrive each described RNC according to the data of sending send situation, determine that current each described RNC sends the shared CFN of described MBMS business datum, get maximum CFN wherein, and select arbitrary CFN more than or equal to this maximum CFN as benchmark CFN.
18, as the arbitrary described method of claim 15 to 17, it is characterized in that, by following manner described benchmark CFN is sent to each described RNC: the frame type 0 or the frame type 1 of user's face of expansion Iu interface issue to each described RNC to carry described benchmark CFN.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075233A (en) * | 2009-11-24 | 2011-05-25 | 大唐移动通信设备有限公司 | Methods for transmitting and receiving control information and equipment |
| CN109699049A (en) * | 2017-10-24 | 2019-04-30 | 成都鼎桥通信技术有限公司 | The determination method and apparatus of user plane protocol stack type |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101262277B (en) * | 2007-03-06 | 2013-03-27 | 中兴通讯股份有限公司 | Synchronization dispatching method for multimedia broadcast and multicast service data |
| CN101043641B (en) * | 2007-03-07 | 2011-11-30 | 中兴通讯股份有限公司 | Inter-RNC MBMS data synchronization method and system |
| CN101043265B (en) * | 2007-04-27 | 2010-11-24 | 华为技术有限公司 | Method for realizing multimedia broadcasting and multicasting service data synchronized transmission |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075233A (en) * | 2009-11-24 | 2011-05-25 | 大唐移动通信设备有限公司 | Methods for transmitting and receiving control information and equipment |
| CN102075233B (en) * | 2009-11-24 | 2016-03-23 | 电信科学技术研究院 | A kind of control information receiving/transmission method and equipment |
| CN109699049A (en) * | 2017-10-24 | 2019-04-30 | 成都鼎桥通信技术有限公司 | The determination method and apparatus of user plane protocol stack type |
| CN109699049B (en) * | 2017-10-24 | 2022-03-08 | 成都鼎桥通信技术有限公司 | Method and device for determining user plane protocol stack type |
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