CN102624485A - Method and equipment for processing subframes - Google Patents
Method and equipment for processing subframes Download PDFInfo
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- CN102624485A CN102624485A CN2012100579960A CN201210057996A CN102624485A CN 102624485 A CN102624485 A CN 102624485A CN 2012100579960 A CN2012100579960 A CN 2012100579960A CN 201210057996 A CN201210057996 A CN 201210057996A CN 102624485 A CN102624485 A CN 102624485A
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Abstract
The invention discloses a method and equipment for processing subframes. The method for processing the subframes is as follows: if a packet which is not received by an eNB (evolved Node B) comprises at least two continuous MBMS (Multimedia Broadcast Multicast Service) data packets to be scheduled by the eNB within one dynamic scheduling period, the subframe, used for sending DSI (Dynamic Schedule Information) corresponding to the dynamic scheduling period, of the eNB is blank. The embodiment of the invention further provides the equipment for processing the subframes. When the eNB in the embodiment of the invention discovers continuous MBMS data packet loss and/or type0 PDU (Protocol Data Unit) group loss, the subframe, used for sending the DSI, of eNB is blank, thereby the eNB can be prevented from sending wrong DSI and the problems that due to wrong DSI generated by the Enb, other eNBs are interfered and UE (User Equipment) receives wrongly can be solved.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to the processing method and the equipment of subframe.
Background technology
Long Term Evolution (LTE; Long Term Evolution) in the system; Multimedia broadcast-multicast service (Multimedia Broadcast Multicast Service; MBMS) can adopt multimedia broadcasting and multicast SFN (Multimedia Broadcast multicast service Single Frequency Network, MBSFN) mode transfer, promptly a plurality of base stations (evolved Node B; ENB) adopt same frequency at one time, comprise the wireless signal of identical MBMS data from the emission of a plurality of sub-districts.Above-mentioned a plurality of eNB institute region covered through MBSFN mode transfer MBMS data can be called MBSFN zone (MBSFN area); Each subscriber equipment (User Equipment in this MBSFN zone; UE) can think to have only a transmitter, thereby realize the reception of MBMS data at the emission wireless signal.
The data content that eNB transmitted in the MBSFN zone is identical, and the physical resource of employing also is identical, i.e. the content synchronization of each eNB.For example, equipment of the core network BM-SC side and eNB side are provided with the SYNC entity respectively.The SYNC entity of BS-SC side stabs (Time Stamp) and offers eNB all in the MBSFN zone for each MBMS packet setting-up time; Concrete, BM-SC can comprise a plurality of MBMS packets in a synchronizing sequence (synchronization sequence).The SYNC entity of BM-SC side is that a MBMS packet in the synchronizing sequence is set identical timestamp; And when BM-SC has sent this synchronizing sequence; Transmission types 0 controlling packet (type0 PDU), this type0 PDU is used to notify the current synchronizing sequence of eNB to send to finish.For improving reliability, the SYNC entity of BM-SC side will send type0 PDU group, rather than only send a type0 PDU.The type0 PDU that the group of the type0 PDU here is repeated to send by all and content is identical forms.For example, when a synchronizing sequence transmission finishes, send identical type0 PDU continuously 3 times, these 3 type0 PDU are a type0 PDU group.
When eNB receives the MBMS data, can confirm that BM-SC begins to send the opportunity of synchronizing sequence, confirm that according to typ0 PDU the synchronizing sequence reception finishes according to the timestamp that the SYNC entity of eNB side is known.Then, eNB sends the MBMS packet that receives according to the corresponding timestamp of MBMS packet that receives.
If each eNB in the MBSFN zone is before certain DSP begins, buffer memory all MBMS packets that will in this DSP, send, then each eNB can generate identical DSI, and identical MBMS packet is realized identical dynamic dispatching.For example, eNB opens when preceding at certain DSP, buffer memory all MBMS packets that will in this DSP, send.ENB confirms the transmission opportunity of each MBMS packet, and generate this DSP corresponding dynamic schedule information (Dynamic schedule information, DSI), to indicate the scheduling situation of this DSP, the original position of the packet of different business in this DSP for example.ENB in this DSP Multicast Channel (Multicast Channel sends the DSI of corresponding transmission channel in first MBSFN subframe MCH), and sends each packet according to scheduling result.Receiving terminal UE can receive DSI, and can know the scheduling situation of eNB according to DSI, opportunity that eNB sends the interested data of UE goes to receive data thereby be chosen in.
In the MBMS in evolution stage, the professional interface-free resources of MBSFN is to adopt semi-static mode to reserve in advance, is reserved the subframe that is used to send the MBSN data and is called the MBSFN subframe.For the different QoS requirement that realizes that different MBS FN is professional; The MBMS in evolution stage is mapped to different transmission channel MCH with the MBSFN business; Different MCH usually adopt different modulation coding modes (Modulation Coding Scheme, MCS), to realize different QoS.The not shared same reservation MBSFN subframe of different MCH.In order to reduce scheduling overhead, each DSP of eNB once eats dishes without rice or wine to send scheduling to the MBMS data.ENB is when scheduling, and a scheduling time is stabbed the MBSFN data before the corresponding DSP time started.Usually, the DSP of eNB after timestamp dispatches corresponding MBSFN data.
In realizing process of the present invention, the inventor finds: in the prior art, the IP pattern is adopted in the transmission between BS-SC and the eNB, possibly cause MBMS packet or type0 PDU to lose.If certain eNB in the MBSFN zone can't normally receive at least two continuous MBMS packets in the synchronizing sequence or indicate a synchronizing sequence to send all type0 PDU that finish; Then this eNB is with the DSI of generation error; Cause interference, and possibly cause the reception of UE mistake to occur other eNB.
Summary of the invention
The embodiment of the invention provides the method and apparatus of handling subframe.
One embodiment of the present of invention provide a kind of method of handling subframe, and this method comprises:
If the bag that the base station does not receive comprises: the subframe that at least two continuous multimedia broadcast-multicast service MBMS packets that said base station will be dispatched in a dynamic dispatching cycle, then said base station are used to send the dynamic scheduling information corresponding with the said dynamic dispatching cycle is for empty.
An alternative embodiment of the invention provides the another kind of method of handling subframe, and this method comprises:
If the base station does not receive type 0 control package, the subframe that said base station is used to send the dynamic scheduling information corresponding with the dynamic dispatching cycle is for empty, and wherein, the said dynamic dispatching cycle is used to send said type 0 control package corresponding M BMS packet.
An alternative embodiment of the invention provides a kind of equipment of handling subframe, and this equipment comprises:
First receiving element is used for confirming whether the bag that does not receive satisfies first condition: comprise at least two continuous multimedia broadcast-multicast service MBMS packets that first transmitting element will be dispatched in a dynamic dispatching cycle;
First transmitting element is used in definite result of first receiving element when being, the subframe that will be used to send the dynamic scheduling information corresponding with the said dynamic dispatching cycle is changed to sky.
An alternative embodiment of the invention provides the another kind of equipment of handling subframe, and this equipment comprises:
Second receiving element is used for confirming not receive type 0 control package;
Second transmitting element; Be used in definite result of second receiving element when being; The subframe that will be used to send the dynamic scheduling information corresponding with the dynamic dispatching cycle is changed to sky, and wherein, the said dynamic dispatching cycle is used to send said type 0 control package corresponding M BMS packet.
In the embodiment of the invention; When access network equipment (like eNB) finds that continuous MBMS data-bag lost and/or type0 PDU group are lost; Its subframe of sending DSI can be sky; Thereby avoid eNB to send wrong DSI, solve eNB generation error DSI and cause problem other eNB disturb and the UE mistake receives.
Description of drawings
A kind of method flow sketch map of handling subframe that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is the synchronizing sequence sketch map that BM-SC sends in the embodiment of the invention;
The another kind that Fig. 3 provides for the embodiment of the invention is handled the method flow sketch map of subframe;
Fig. 4 is another synchronizing sequence sketch map that BM-SC sends in the embodiment of the invention;
A kind of equipment sketch map of handling subframe that Fig. 5 provides for the embodiment of the invention;
The another kind that Fig. 6 provides for one embodiment of the invention is handled the equipment sketch map of subframe.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
One embodiment of the invention provides a kind of method of handling subframe; Use this method; If the bag that the base station does not receive comprises: at least two continuous MBMS packets that this base station will be dispatched in a dynamic dispatching cycle DSP; Then this base station be used to send the dynamic scheduling information corresponding with this dynamic dispatching cycle subframe for empty, thereby avoid eNB to send wrong DSI, solve eNB generation error DSI and cause other eNB are disturbed the problem with the reception of UE mistake.
As shown in Figure 1; Another embodiment of the present invention provides a kind of method of handling subframe; Wherein, eNB is positioned at Access Network, and BM-SC is positioned at core net; The SYNC entity of BM-SC side can be to be positioned at core net and the independent community that can communicate by letter with BM-SC or the some of this independent community, also can be a unit of BM-SC device interior.This method comprises:
For example, BM-SC sends to eNB with a synchronizing sequence, and this synchronizing sequence comprises a plurality of MBMS packets.In general, it is professional that the MBMS packet in synchronizing sequence belongs to same MBMS, certainly, also do not get rid of the MBMS packet of colluding in the step sequence and belong to the professional possibility of a plurality of MBMS.The SYNC entity of BM-SC side is provided with identical timestamp for each the MBMS packet in this synchronizing sequence, and after BM-SC has sent all the MBMS packets in this synchronizing sequence, sends type0 PDU.
Further, the header information of above-mentioned MBMS packet can comprise that accumulated bytes number (Total Number Of Octet) is used to the data total amount of representing that data source is sent in the certain hour section.Similar with prior art, concerning the data of a business, this field is monotonic increase within a certain period of time.The header information of above-mentioned MBMS packet can also comprise cumulative data bag number (Total Number Of Packet), is used to the packet total amount of representing that data source is sent in the certain hour section.The data source here refers to the BM-SC in the present embodiment.
With Fig. 2 is example; Suppose that four continuous MBMS packets that BM-SC sends to eNB are A, B, C and D; Length is 100 bytes, 50 bytes, 150 bytes and 100 bytes successively, and the accumulated bytes information of counting in the corresponding packet head is followed successively by 100 bytes, 150 bytes, 300 bytes and 400 bytes.Such as, the accumulated bytes number indication in the D head comprises that the byte number accumulative total of D and MBMS packet before thereof is 400 bytes (they being 100+50+150+100=400).The header information of A, B, C and D comprises that also the cumulative data bag counts information (accompanying drawing is not shown), is followed successively by 1,2,3 and 4.Such as, the cumulative data bag number indication in the D head comprises that the packet accumulative total that the BM-SC of D and MBMS packet before thereof has sent is 4.
ENB determines whether that situation about occurring also can be described as: at least two continuous MBMS packet no show eNB that will in a DSP, dispatch are not promptly received by eNB.
For example, eNB can confirm respectively according to the SYNC header information of the MBMS packet that has received: continuous packet loss whether occurs, and whether continuous packet loss should be dispatched in the same dynamic dispatching cycle.Wherein, eNB can adopt existing technical scheme to realize.
With Fig. 2 is example, supposes that two continuous dynamic that eNB dispatches the MBMS packet are respectively DSP1 and DSP2 dispatching cycle, and the start time point of DSP1 is T1, and the start time point of the DSP2 after this DSP1 is T2.Because each the MBMS packet shown in Fig. 2 is comprised in the same synchronizing sequence, promptly the timestamp of each MBMS packet is identical, supposes the time T 0 of this timestamp indication.Then in step 120, if eNB judges T0 between T1 and T2, promptly after T1 and before T2, then eNB confirms and in DSP2, dispatch MBMS packet A, B, C and D.
Further, suppose that eNB only receives A and D, then eNB can carry out buffer memory to A and D.ENB is several 100 according to the accumulated bytes of A head, the accumulated bytes several 400 of D head and the data packet length 100 of D; ENB can confirm that in addition the MBMS data of 400-100-100=200 byte are that eNB should receive, but the obliterated data of no show eNB in fact.In addition, several 4 according to the cumulative data bag of cumulative data bag of A head several 1 and D head, it is two MBMS packets of 2 and 3 that eNB can also confirm to exist between A and the D cumulative data bag number in the head.Through said process, eNB can confirm to lose two continuous MBMS packets (B and C).Here need to prove that eNB only can confirm to have lost packet, and the quantity of data packets of losing; And can't confirm each length of data package of losing, therefore, if eNB is according to existing technical scheme; Estimate each MBMS length of data package; And generate DSI, then this DSI possibly be the DSI of mistake, and is different with the DSI that other eNB generated in other MBSFN zones; Thereby cause interference, also possibly further cause UE mistake reception data even can't receive data other eNB.
Through said process, eNB confirms to have occurred continuous packet loss according to the SYNC header information of the MBMS packet that received, and the MBMS packet that does not receive should dispatch in a DSP, and therefore, eNB is with execution in step 130.
The subframe that step 130, eNB are used to send the dynamic scheduling information DSI corresponding with this dynamic dispatching cycle DSP is for empty.
For example, eNB keeps mourning in silence (mute) in the subframe that should send the DSI corresponding with this DSP.And for example, can eNB confirm earlier generate the complete DSI corresponding with this DSP, if not, eNB keeps mourning in silence in the subframe that should send the DSI corresponding with this DSP.
In this step; The subframe that eNB is used to send the DSI corresponding with this DSP is for empty; Can be described as: eNB does not send any content in the time should sending the subframe that comprises DSI yet, wherein, and the MBMS data that the DSI that should generate is used to indicate eNB how will send in this DSP of dynamic dispatching.
Need to prove that " should send the subframe of the DSI corresponding with DSP " in the embodiment of the invention is meant the some subframe X (such as the 1st sub-frame of DSP) among the DSP.If eNB has generated DSI, eNB will send this DSI in this sub-frame X so; And the eNB in the embodiment of the invention can't generate DSI when confirming that the bag that does not receive satisfies established condition (the for example step 120 in the present embodiment), and therefore, eNB keeps mourning in silence at this subframe X.
In this step, eNB can send the MBMS packet in this DSP.Concrete, if there are other MBMS packets that eNB has received, that will in this DSP, dispatch, then eNB can send above-mentioned other MBMS packets through other subframes among this DSP.Optional, if should send the 1st sub-frame that the subframe of the DSI corresponding with this DSP is this DSP, then above-mentioned other subframes can be after the subframe that should send the DSI corresponding with this DSP; Otherwise, above-mentioned other subframes can be before the subframe that should send the DSI corresponding with this DSP or after.Optional, other MBMS packets can comprise: time that the time of being sent by BM-SC is sent by BM-SC early than the above-mentioned continuous N BMS packet of confirming to lose and confirm that with above-mentioned the continuous N BMS packet of losing belongs to the MBMS packet of same business; And/or; Other professional MBMS packets that eNB will dispatch before the business under the above-mentioned continuous N BMS packet of confirming to lose of scheduling; Under latter event; Other MBMS packets and the continuous N BMS packet of losing belong to different business, but can be no earlier than the time that the above-mentioned continuous N BMS packet of confirming to lose is sent by BM-SC by the time that BM-SC sends.
With Fig. 2 is example, and eNB has received MBMS packet A in step 120, and eNB can know that BM-SC sends the time of A early than the continuous data bag of the losing transmitting time of (referring to B and C) according to the header information of the MBMS packet that has received.In addition, eNB has also received D, but the time of BM-SC transmission D is later than the transmitting time of the continuous data bag of losing.Therefore, in this DSP, should send in the gap frame subframe afterwards of DSI, eNB can send MBMS packet A.Because eNB only can confirm quantity of data packets and the total length lost; And the length of each packet (referring to B and C) that can't confirm to lose; Therefore; The transmission position that the position comes the D after the packet of losing also just can't be confirmed to send in the transmission position of each packet that eNB can't confirm to lose.So,, can not send D even eNB has received MBMS packet D yet.
Suppose that eNB adopts existing dynamic dispatching mode to send A, then corresponding, UE is not receiving this DSP corresponding D SI, can read the full content in this DSP, and so, UE can read MBMS packet A.It is thus clear that the DSI that does not send packet or transmission mistake with eNB fully compares, the method that present embodiment provides can make that the data transmission efficiency of eNB is higher so that UE receives more data.
Optional, supposing that this DSP is made up of the subframe that should send DSI, other subframes of sending above-mentioned other MBMS packets and residue subframe, after then eNB has sent above-mentioned other MBMS packets in this DSP, can keep mourning in silence in the residue subframe.Need to prove; The subframe of above-mentioned composition DSP is that eNB sends the transmission channel MCH subframe that the MBMS packet is reserved; Then eNB keeps mourning in silence referring in the residue subframe of this DSP, and eNB is used to send in the residue subframe on the MCH channel of MBMS packet and does not send any content.
It will be appreciated by those skilled in the art that eNB can send non-MBMS packet in above-mentioned residue subframe, these non-MBMS packets take non-MCH channel.For example; ENB can adopt lower power; In above-mentioned residue subframe, send unicast packet, these unicast packet be carried on dedicated channel (Dedicated Traffic Channel, DTCH); The transmission channel that takies be DSCH Downlink Shared Channel (Downlink shared channel, DL-SCH).
ENB in this step can be with reference to existing technical scheme, realizes generation and the transmission of DSI, and after comprising the subframe of DSI in transmission, sends the MBMS packet that has received.
Base station in the present embodiment can confirm earlier whether the bag that does not receive satisfies established condition; For example; Whether comprise at least two continuous MBMS packets that this eNB will dispatch in a dynamic dispatching cycle DSP, if satisfy established condition, then this base station be used to send the DSI corresponding with this DSP subframe for empty; Thereby avoid eNB to send wrong DSI, solve eNB generation error DSI and cause problem other eNB disturb and the UE mistake receives.
Another embodiment of the present invention provides a kind of method of handling subframe; In this method; If the base station does not receive type 0 control package, promptly the bag that do not receive of base station comprises type 0 control package, and then this base station subframe of being used to send the dynamic scheduling information corresponding with the dynamic dispatching cycle is sky; Wherein, the above-mentioned dynamic dispatching cycle is used for sending and the type 0 control package corresponding M BMS packet.This method can avoid the base station to send wrong DSI, solves base station generation error DSI and causes the problem to other base station interference and the reception of UE mistake.
As shown in Figure 3; An alternative embodiment of the invention provides a kind of method of handling subframe; Wherein, eNB is positioned at Access Network, and BM-SC is positioned at core net; The SYNC entity of BM-SC side can be to be positioned at core net and the independent community that can communicate by letter with BM-SC or the some of this independent community, also can be a unit of BM-SC device interior.This method comprises:
With Fig. 4 is example, and BM-SC sends to 4 synchronizing sequence E, F, G and the H of eNB, and each synchronizing sequence comprises several MBMS packets respectively, and the included MBMS data packet number of each synchronizing sequence can be identical or different.It is professional that present embodiment belongs to same MBMS to the MBMS packet in the same synchronizing sequence, still belong to a plurality of MBMS professional do not do concrete qualification, whether be that sky is not done concrete qualification yet to the MBMS packet in the synchronizing sequence.For example, the MBMS packet among the synchronizing sequence G is empty packet, and synchronizing sequence G does not comprise any MBMS data in other words.
In this step; The SYNC entity of BM-SC side is provided with timestamp for each the MBMS packet in each synchronizing sequence; And after BM-SC has sent all the MBMS packets in the synchronizing sequence, send and the corresponding type0 PDU group of this synchronizing sequence, each and the corresponding type0 PDU group of synchronizing sequence can comprise a plurality of type0 PDU; The content of these type0 PDU is identical, and possibly have the identical timestamp of MBMS packet in its corresponding synchronizing sequence.The type0 PDU that is repeated to send by BM-SC can form a type0 PDU group.
With Fig. 4 is example, and the corresponding type0 PDU group of each synchronizing sequence comprises 3 type0 PDU, is 1,2 and 3 according to the sequence notation in each type0 PDU group.Optional, can have timestamp with type0 PDU in the corresponding type0 PDU group of synchronizing sequence E, the timestamp of the MBMS data among this timestamp and the synchronizing sequence E is identical, supposes to be Te.MBMS packet among the synchronizing sequence G is empty; Be that G does not comprise the MBMS data; Also can have timestamp with the type0 PDU in the corresponding type0 PDU group of synchronizing sequence G, this timestamp can be a certain value of the time range of this synchronizing sequence H, is assumed to be Tg.In addition, the time of the timestamp of the MBMS packet among assumes synchronization sequence F and H indication is respectively Tf and Th.The header information of each MBMS packet is not shown in figures.
Further, the header information of above-mentioned MBMS packet can also comprise accumulated bytes number and cumulative data bag number, because of similar with other embodiment of the present invention, repeats no more here.
ENB determines whether that situation about occurring also can be described as: the corresponding type0 PDU group of synchronizing sequence that has received with eNB or the synchronizing sequence that does not receive no show eNB, all type0 PDU that promptly belong to this type0 group are not received by eNB.Because synchronizing sequence can comprise a plurality of MBMS packets; And the timestamp of the MBMS packet in the same synchronizing sequence is identical; That is to say; These a plurality of MBMS that are included in the same synchronizing sequence are corresponding with same type0 PDU group, and promptly each MBMS packet all has the type0 PDU group of unique correspondence.Therefore; ENB determines whether that situation about occurring also can be described as: the corresponding type0 PDU group of MBMS packet that has received with eNB or the MBMS packet that does not receive no show eNB, all type0 PDU that promptly belong to this type0 group are not received by eNB.
Need to prove that the method for the processing subframe that present embodiment provides is applicable to that various eNB can confirm the situation that type0 PDU group is lost.Concrete; No matter whether type0 PDU group corresponding synchronous sequence is received by eNB is all or part of, and perhaps this type0 PDU group corresponding synchronous sequence be empty, loses if this type0 PDU organizes; ENB can be according to the relevant information of the MBMS packet that has received; Such as timestamp or accumulated bytes number or cumulative data bag number etc., confirm not receive this type0 PDU group that should arrive, so the method for the processing subframe that provides of present embodiment is suitable for all.
In the present embodiment, suppose that two continuous dynamic that eNB dispatches the MBMS packet are respectively DSP3 and DSP4 dispatching cycle, the start time point of DSP3 is T3, and the start time point of the DSP4 after this DSP3 is T4.
With Fig. 4 is example, and in step 320, if eNB judges Te, Tf, Tg and Th all between T3 and T4, promptly after T3 and before T4, then eNB confirms and in DSP4, dispatch the MBMS packet among synchronizing sequence E, F, G and the H.
Further, because eNB can be according to the timestamp scope of pre-configured definite each synchronizing sequence that should receive.Therefore, if eNB does not receive any one type0 PDU, its timestamp eNB according to pre-configured definite some timestamp scopes in, can confirm that then type0 PDU group loses.If in above-mentioned 4 type0 PDU group, have at least the full content of 1 PDU group to lose, then the eNB execution in step 330.
With Fig. 4 is example, and eNB does not receive and corresponding the 1st, the 2nd of F and the 3rd type0 PDU, even then eNB receives synchronizing sequence F, can't judge also when packet among this synchronizing sequence F sends to finish.If eNB is according to existing technical scheme; The packet of estimating in this synchronizing sequence sends the opportunity that finishes, and all will be inaccurate, therefore; ENB will be inaccurate DSI according to the DSI that estimation results generated; Different with the DSI that other eNB generated in other MBSFN zones, thus interference caused to other eNB, also possibly further cause UE mistake reception data even can't receive data.Therefore, the eNB in the present embodiment can be after confirming that the full content of organizing with the corresponding type0 PDU of F is lost, execution in step 330.
If in above-mentioned 4 type0 PDU group, each type0 PDU group all has at least 1 type0 PDU to be received by eNB, and then eNB can confirm that each synchronizing sequence sends the opportunity that finishes, and then the eNB execution in step 340.
The subframe that step 330, eNB are used to send the dynamic scheduling information DSI corresponding with dynamic dispatching cycle DSP is for empty; Wherein, This DSP is used to send the type0 PDU group corresponding M BMS packet that eNB does not receive, or perhaps the MBMS packet in the synchronizing sequence.
For example, eNB keeps mourning in silence in the subframe that should send the DSI dynamic scheduling information corresponding with this DSP.And for example, can eNB confirm earlier generate the complete DSI corresponding with this DSP, if not, eNB keeps mourning in silence in the subframe that should send the DSI corresponding with this DSP.
In this step; The subframe that eNB is used to send the DSI corresponding with this DSP is for empty; Can be described as: eNB does not send any content in the time should sending the subframe that comprises DSI yet, wherein, and the MBMS data that the DSI that should generate is used to indicate eNB how will send in this DSP of dynamic dispatching.
In this step, eNB can send the MBMS packet in this DSP.Concrete, if there are other MBMS packets that eNB has received, that will in this DSP, dispatch, then eNB can send above-mentioned other MBMS packets through other subframes among this DSP.Optional, above-mentioned other MBMS packets can comprise: the concluding time of being organized the corresponding synchronous sequence by the time of equipment of the core network BM-SC transmission early than the type0 PDU that loses; And/or, should before the business under the type0 PDU group corresponding M BMS packet that scheduling is lost, dispatch by eNB, and organize the MBMS packet that corresponding M BMS packet belongs to different business with the type0 PDU that loses.
With Fig. 4 is example, and eNB has received synchronizing sequence E in step 320, and the MBMS packet will be dispatched in this DSP among the E.In addition, eNB can know according to the header information of the MBMS packet that has received, the time that BM-SC sends E early than with the transmitting time of the type0 PDU group corresponding synchronous sequence (referring to F) of losing.Therefore, in this DSP, should send in the gap frame subframe afterwards of DSI, eNB can send the MBMS packet among the synchronizing sequence E that has received.Though if eNB does not receive the corresponding type0 PDU group with synchronizing sequence F; But some the MBMS packets among the synchronizing sequence F have been received; Then eNB can send the MBMS packet among the synchronizing sequence F that has received after the MBMS packet in sending E.Because eNB can't judge whether F sends and finish; Even therefore eNB receives synchronizing sequence G and the H that BM-SC sends; ENB also can't confirm the transmission position of MBMS packet in this DSP among G and the H, so can not send the G that receives and the MBMS packet among the H.Further, suppose that eNB adopts existing dynamic dispatching mode to send E, then corresponding, UE does not receive this DSP corresponding D SI, can read the full content in this DSP, and so, UE can read MBMS packet E.It is thus clear that the DSI that does not send packet or transmission mistake with eNB fully compares, the method that present embodiment provides can make that the data transmission efficiency of eNB is higher so that UE receives more data.
Further, suppose that this DSP is made up of the subframe that should send DSI, other subframes of sending above-mentioned other MBMS packets and residue subframe, after then eNB has sent above-mentioned other MBMS packets in this DSP, can keep mourning in silence in the residue subframe.Need to prove; The subframe of above-mentioned composition DSP is that eNB sends the transmission channel MCH subframe that the MBMS packet is reserved; Then eNB keeps mourning in silence referring in the residue subframe of this DSP, and eNB is used to send on the MCH channel with the type0 control package corresponding M BMS packet of losing in the residue subframe and does not send any content.
It will be appreciated by those skilled in the art that; ENB can send non-MBMS packet in above-mentioned residue subframe; These non-MBMS packets take non-MCH channel, and for example eNB can adopt lower power, in above-mentioned residue subframe, send unicast packet; These unicast packet are carried on dedicated channel DTCH, and the transmission channel that takies is DL-SCH.
ENB in this step can be with reference to existing technical scheme, realizes generation and the transmission of DSI, and after comprising the subframe of DSI in transmission, sends the MBMS packet that has received.
Base station in the present embodiment can confirm earlier whether the bag that does not receive satisfies established condition; For example; Whether comprise and the corresponding type0 PDU group of certain or some MBMS packets that if satisfy established condition, then this base station subframe of being used to send the DSI corresponding with this DSP is sky; Thereby avoid eNB to send wrong DSI, solve eNB generation error DSI and cause problem other eNB disturb and the UE mistake receives.
Two kinds of methods of handling subframe that the above embodiment of the present invention provides can combine, and form another embodiment of the invention.Among this embodiment; The base station can confirm earlier whether the bag that does not receive satisfies established condition; That is: whether comprise two continuous MBMS packets that this eNB will dispatch in a DSP; And with the corresponding type0 PDU group of certain or some MBMS packets, certain or some MBMS packets can be the MBMS packets that eNB has received, also can be the MBMS packets that eNB does not receive.If satisfy established condition, then this base station be used to send the DSI corresponding with this DSP subframe for empty, thereby avoid eNB to send wrong DSI, solve eNB generation error DSI and cause other eNB are disturbed the problem with the reception of UE mistake.The method that whether the definite bag that does not receive in base station satisfies established condition among this embodiment can repeat no more with reference to the above embodiment of the present invention here.
In the method for the processing subframe that the above embodiment of the present invention provides, be access network equipment with eNB, BM-SC is that equipment of the core network is that example describes, but the embodiment of the invention is not limited to this.For example, the eNB in the foregoing description can replace with Home eNodeB (home NodeB, hNB), be positioned at other equipment of Access Network in the system such as microcellulor cell base station or LTE+, BM-SC can replace with other equipment that are positioned at core net.
As shown in Figure 5, the embodiment of the invention also provides a kind of equipment of handling subframe, the method for the processing subframe that this first equipment 50 can be used to realize that the above embodiment of the present invention provides.First equipment 50 comprises first receiving element 510 and first transmitting element 520.Wherein, first receiving element is used for confirming whether the bag that does not receive satisfies first condition: comprise at least two continuous multimedia broadcast-multicast service MBMS packets that first transmitting element will be dispatched in a dynamic dispatching cycle.First transmitting element is used in definite result of first receiving element when being, the subframe that will be used to send the dynamic scheduling information corresponding with the said dynamic dispatching cycle is changed to sky.
Wherein, first transmitting element subframe that will be used to send the dynamic scheduling information corresponding with this dynamic dispatching cycle is changed to sky and can refers to following any situation: first transmitting element keeps mourning in silence in the subframe that should send with corresponding dynamic scheduling information of this dynamic dispatching cycle; Perhaps, can first transmitting element be confirmed generate the complete dynamic scheduling information corresponding with the said dynamic dispatching cycle, if not, first transmitting element keeps mourning in silence in the subframe that should send the dynamic scheduling information corresponding with this dynamic dispatching cycle.
In the present embodiment, first receiving element can be used to receive the MBMS packet, and confirms according to the MBSM packet that receives whether the said bag that does not receive satisfies first condition.For example, the header information of the MBSM packet that first receiving element receives comprises accumulated bytes number and cumulative data bag number, and then first receiving element confirms according to this accumulated bytes number and cumulative data bag number whether the bag that does not receive satisfies first condition.
Optional, in the present embodiment, if there are other MBMS packets that first receiving element has received, that first transmitting element will be dispatched in this dynamic dispatching cycle.Optional, other MBMS packets can comprise: time that the time of being sent by BM-SC is sent by BM-SC early than the above-mentioned continuous N BMS packet of confirming to lose and confirm that with above-mentioned the continuous N BMS packet of losing belongs to the MBMS packet of same business; And/or; Other professional MBMS packets that eNB will dispatch before the business under the above-mentioned continuous N BMS packet of confirming to lose of scheduling; Under latter event; Other MBMS packets and the continuous N BMS packet of losing belong to different business, but can be no earlier than the time that the above-mentioned continuous N BMS packet of confirming to lose is sent by BM-SC by the time that BM-SC sends.
Optional, if should send the 1st sub-frame that the subframe of the DSI corresponding with this DSP is this DSP, then above-mentioned other subframes can be after the subframe that should send the DSI corresponding with this DSP; Otherwise, above-mentioned other subframes can be before the subframe that should send the DSI corresponding with this DSP or after.
Optional; First transmitting element in the present embodiment also is used for: after sending above-mentioned other MBMS packets; Keep mourning in silence in the residue subframe, wherein, above-mentioned residue subframe comprises: first transmitting element is in this dynamic dispatching cycle; After above-mentioned other subframes, the subframe of reserving for the transmission channel of the mapping of the business under the above-mentioned continuous MBMS packet.
The equipment that present embodiment provides can be base station (like eNB) or other access network entity, and for example (home NodeB hNB) or microcellulor cell base station etc., also can be to be positioned at base station or the inner unit of other access network entity to Home eNodeB.This equipment can confirm earlier whether the bag that does not receive satisfies established condition; For example; Whether comprise at least two continuous MBMS packets that this eNB will dispatch in a dynamic dispatching cycle DSP, if satisfy established condition, then this equipment be used to send the DSI corresponding with this DSP subframe for empty; Thereby avoid this equipment to send wrong DSI, solve generation error DSI and cause problem the interference and the reception of UE mistake of other equipment.
As shown in Figure 6, the embodiment of the invention also provides the another kind of equipment of handling subframe, the method for the processing subframe that this second equipment 60 can be used to realize that the above embodiment of the present invention provides.Second equipment 60 comprises second receiving element 610 and second transmitting element 620.Wherein, second receiving element is used to determine whether not receive type 0 control package, confirms promptly whether the bag that does not receive satisfies second condition: comprise type 0 control package.Second transmitting element is used in definite result of second receiving element when being; The subframe that will be used to send the dynamic scheduling information corresponding with the dynamic dispatching cycle is changed to sky; Wherein, the above-mentioned dynamic dispatching cycle is used to send the above-mentioned type 0 controlling packet corresponding M BMS packet.
Wherein, second transmitting element subframe that will be used to send the dynamic scheduling information corresponding with the above-mentioned dynamic dispatching cycle is changed to sky and can refers to following any situation: second transmitting element keeps mourning in silence in the subframe that should send with corresponding dynamic scheduling information of above-mentioned dynamic dispatching cycle; Perhaps, can second transmitting element be confirmed generate the complete dynamic scheduling information corresponding with the above-mentioned dynamic dispatching cycle, if not, second transmitting element keeps mourning in silence in the subframe that should send the dynamic scheduling information corresponding with the above-mentioned dynamic dispatching cycle.
Optional; In the present embodiment, if having other MBMS packet that second receiving element has received, second transmitting element will dispatch in the above-mentioned dynamic dispatching cycle then second transmitting element also is used for sending above-mentioned other MBMS packet through other subframe in above-mentioned dynamic dispatching cycle.Optional, above-mentioned other MBMS packets can comprise: the concluding time of being organized the corresponding synchronous sequence by the time of equipment of the core network BM-SC transmission early than the type0 PDU that loses; And/or, should before the business under the type0 PDU group corresponding M BMS packet that scheduling is lost, dispatch by eNB, and organize the MBMS packet that corresponding M BMS packet belongs to different business with the type0 PDU that loses.
Optional, if should send the 1st sub-frame that the subframe of the DSI corresponding with this DSP is this DSP, then above-mentioned other subframes can be after the subframe that should send the DSI corresponding with this DSP; Otherwise, above-mentioned other subframes can be before the subframe that should send the DSI corresponding with this DSP or after.
Optional; Second transmitting element also is used for after sending above-mentioned other MBMS packet; Keep mourning in silence in the residue subframe, wherein, above-mentioned residue subframe comprises: above-mentioned base station is in the above-mentioned dynamic dispatching cycle; After above-mentioned other subframe, for the above-mentioned type 0 control package corresponding M BMS packet under the subframe reserved of the transmission channel of business mapping.
In the present embodiment, type 0 control package comprises type 0 controlling packet that all are repeated to send and content is identical.
The equipment that present embodiment provides can be base station (like eNB) or other access network entity, and for example (home NodeB hNB) or microcellulor cell base station etc., also can be to be positioned at base station or the inner unit of other access network entity to Home eNodeB.This equipment can confirm earlier whether the bag that does not receive satisfies established condition; For example; Whether comprise and the corresponding type0 PDU group of certain or some MBMS packets that if satisfy established condition, then this equipment subframe of being used to send the DSI corresponding with this DSP is sky; Thereby avoid this equipment to send wrong DSI, solve generation error DSI and cause problem the interference and the reception of UE mistake of other equipment.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to accomplish through program; Described program can be stored in the computer read/write memory medium; Described storage medium, as: ROM/RAM, magnetic disc, CD etc.
It below only is preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (17)
1. a method of handling subframe is characterized in that, said method comprises:
If the bag that the base station does not receive comprises: the subframe that at least two continuous multimedia broadcast-multicast service MBMS packets that said base station will be dispatched in a dynamic dispatching cycle, then said base station are used to send the dynamic scheduling information corresponding with the said dynamic dispatching cycle is for empty.
2. the method for claim 1 is characterized in that, the subframe that said base station is used to send the dynamic scheduling information corresponding with the said dynamic dispatching cycle is that sky comprises:
Said base station keeps mourning in silence in the subframe that should send the dynamic scheduling information corresponding with the said dynamic dispatching cycle; Perhaps, can said base station be confirmed generate the complete dynamic scheduling information corresponding with the said dynamic dispatching cycle, if not, said base station keeps mourning in silence in the subframe that should send the dynamic scheduling information corresponding with the said dynamic dispatching cycle.
3. according to claim 1 or claim 2 method is characterized in that said method also comprises:
If there are other MBMS packets that said base station has received, that will dispatch in the said dynamic dispatching cycle, said other MBMS packets are sent through other subframes in the said dynamic dispatching cycle in then said base station;
Wherein, said other MBMS packets comprise: the time that the time of being sent by equipment of the core network is sent by equipment of the core network early than said continuous MBMS packet, and belong to the MBMS packet of same business with said continuous MBMS packet; And/or, should before the business under the said continuous MBMS packet of scheduling, dispatch by said base station, and belong to the MBMS packet of different business with said continuous MBMS packet.
4. method as claimed in claim 3 is characterized in that, said base station is after sending said other MBMS packets, and said method also comprises:
Said base station keeps mourning in silence in the residue subframe, and wherein, said residue subframe comprises: said base station in the said dynamic dispatching cycle, after said other subframes, the subframe of reserving for the transmission channel of the business mapping under the said continuous MBMS packet.
5. a method of handling subframe is characterized in that, said method comprises:
If the base station does not receive type 0 control package, the subframe that said base station is used to send the dynamic scheduling information corresponding with the dynamic dispatching cycle is for empty, and wherein, the said dynamic dispatching cycle is used to send said type 0 control package corresponding M BMS packet.
6. method as claimed in claim 5 is characterized in that, the subframe that said base station is used to send the dynamic scheduling information corresponding with the said dynamic dispatching cycle is that sky comprises:
Said base station keeps mourning in silence in the subframe that should send the dynamic scheduling information corresponding with the said dynamic dispatching cycle; Perhaps,
Can said base station be confirmed generate the complete dynamic scheduling information corresponding with the said dynamic dispatching cycle, if not, said base station keeps mourning in silence in the subframe that should send the dynamic scheduling information corresponding with the said dynamic dispatching cycle.
7. like claim 5 or 6 described methods, it is characterized in that said method also comprises: said base station is according to the timestamp scope of pre-configured definite each synchronizing sequence that should receive;
Said base station does not receive type 0 control package and comprises: said base station does not receive type 0 controlling packet of timestamp in said timestamp scope, and the affiliated type of said type 0 controlling packet 0 control package is confirmed not receive in then said base station.
8. like claim 5 or 6 described methods, it is characterized in that said method also comprises:
If there are other MBMS packets that said base station has received, that will dispatch in the said dynamic dispatching cycle, said other MBMS packets are sent through other subframes in the said dynamic dispatching cycle in then said base station;
Wherein, said other MBMS packets comprise: the concluding time of being controlled package corresponding synchronous sequence by the time of equipment of the core network transmission early than said type 0; And/or, should before the business under the said type 0 control package corresponding M BMS packet of scheduling, dispatch by said base station, and control the MBMS packet that package corresponding M BMS packet belongs to different business with said type 0.
9. method as claimed in claim 8 is characterized in that, said base station is after sending said other MBMS packets, and said method also comprises:
Said base station keeps mourning in silence in the residue subframe; Wherein, Said residue subframe comprises: said base station in the said dynamic dispatching cycle, after said other subframes, for said type 0 control package corresponding M BMS packet under the subframe reserved of the transmission channel of business mapping.
10. an equipment of handling subframe is characterized in that, said equipment comprises:
First receiving element is used for confirming whether the bag that does not receive satisfies first condition: comprise at least two continuous multimedia broadcast-multicast service MBMS packets that first transmitting element will be dispatched in a dynamic dispatching cycle;
First transmitting element is used in definite result of first receiving element when being, the subframe that will be used to send the dynamic scheduling information corresponding with the said dynamic dispatching cycle is changed to sky.
11. equipment as claimed in claim 10 is characterized in that, the subframe that said first transmitting element will be used to send the dynamic scheduling information corresponding with the said dynamic dispatching cycle is changed to sky and comprises:
Said first transmitting element keeps mourning in silence in the subframe that should send the dynamic scheduling information corresponding with the said dynamic dispatching cycle; Perhaps,
Can said first transmitting element be confirmed generate the complete dynamic scheduling information corresponding with the said dynamic dispatching cycle, if not, said first transmitting element keeps mourning in silence in the subframe that should send the dynamic scheduling information corresponding with the said dynamic dispatching cycle.
12. like claim 10 or 11 described equipment; It is characterized in that; If other MBMS packets that exist first transmitting element that said first receiving element has received, said to dispatch in the said dynamic dispatching cycle, then said first transmitting element also are used for sending said other MBMS packets through other subframes in said dynamic dispatching cycle;
Wherein, said other MBMS packets comprise: the time that the time of being sent by equipment of the core network is sent by equipment of the core network early than said continuous MBMS packet, and belong to the MBMS packet of same business with said continuous MBMS packet; And/or, should before the business under the said continuous MBMS packet of scheduling, dispatch by said base station, and belong to the MBMS packet of different business with said continuous MBMS packet.
13. equipment as claimed in claim 12; It is characterized in that said first transmitting element also is used for: after sending said other MBMS packets, keep mourning in silence in the residue subframe; Wherein, Said residue subframe comprises: said first transmitting element in the said dynamic dispatching cycle, after said other subframes, the subframe of reserving for the transmission channel of the mapping of the business under the said continuous MBMS packet.
14. an equipment of handling subframe is characterized in that, said equipment comprises:
Second receiving element is used for confirming not receive type 0 control package;
Second transmitting element; Be used in definite result of second receiving element when being; The subframe that will be used to send the dynamic scheduling information corresponding with the dynamic dispatching cycle is changed to sky, and wherein, the said dynamic dispatching cycle is used to send said type 0 control package corresponding M BMS packet.
15. equipment as claimed in claim 14 is characterized in that, the subframe that said second transmitting element will be used to send the dynamic scheduling information corresponding with the said dynamic dispatching cycle is changed to sky and comprises:
Said second transmitting element keeps mourning in silence in the subframe that should send the dynamic scheduling information corresponding with the said dynamic dispatching cycle; Perhaps,
Can said second transmitting element be confirmed generate the complete dynamic scheduling information corresponding with the said dynamic dispatching cycle, if not, said second transmitting element keeps mourning in silence in the subframe that should send the dynamic scheduling information corresponding with the said dynamic dispatching cycle.
16. like claim 14 or 15 described equipment; It is characterized in that; If other MBMS packets that exist second transmitting element that said second receiving element has received, said to dispatch in the said dynamic dispatching cycle, then said second transmitting element also are used for sending said other MBMS packets through other subframes in said dynamic dispatching cycle;
Wherein, said other MBMS packets comprise: the concluding time of being controlled package corresponding synchronous sequence by the time of equipment of the core network transmission early than said type 0; And/or, should before the business under the said type 0 control package corresponding M BMS packet of scheduling, dispatch by said base station, and control the MBMS packet that package corresponding M BMS packet belongs to different business with said type 0.
17. equipment as claimed in claim 16 is characterized in that, said second transmitting element also is used for:
After sending said other MBMS packets; Keep mourning in silence in the residue subframe; Wherein, Said residue subframe comprises: said second receiving element in the said dynamic dispatching cycle, after said other subframes, for said type 0 control package corresponding M BMS packet under the subframe reserved of the transmission channel of business mapping.
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