CN101801094A - Subframe binding transmission method, system and device in long-term evolution multi-carrier system - Google Patents
Subframe binding transmission method, system and device in long-term evolution multi-carrier system Download PDFInfo
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- CN101801094A CN101801094A CN200910077665A CN200910077665A CN101801094A CN 101801094 A CN101801094 A CN 101801094A CN 200910077665 A CN200910077665 A CN 200910077665A CN 200910077665 A CN200910077665 A CN 200910077665A CN 101801094 A CN101801094 A CN 101801094A
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Abstract
The embodiment of the invention discloses a subframe binding transmission method in a long-term evolution multi-carrier system. In the method, a terminal selects at least two member carriers as binding member carriers from member carriers supported per se and determines the number of subframes to be bound; a plurality of ascending subframes are selected as binding subframes from the at least two binding member carriers according to the number of the subframes to be bound; and the binding subframes are used for transmitting the same data block. The embodiment of the invention also discloses subframe binding transmission system and device. By the invention, the terminal can obtain frequency diversity gain in the subframe binding transmission, thereby improving the ascending coverage.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to subframe binding transmission method, system and equipment in a kind of long-term evolution multi-carrier system.
Background technology
In Long Term Evolution (LTE) system, because be subject to the transmitting power of subscriber equipment (UE), if UE is in than rugged environment, the difficult quality guarantee of the uplink of this UE then.For this reason, adopt multi-subframe integrated scheduling (TTI Bunding) scheme to carry out uplink,, make the quality of uplink to be guaranteed to improve up covering.
In the TTI Bunding scheme, UE utilizes a plurality of continuous subframes to send the different redundancy versions of same data block.TTI Bunding is implemented as follows:
The base station sends dispatch to UE, and UE determines N continuous sub-frame of uplink according to this dispatch in member carrier, and utilizes N the redundancy versions of this N sub-frame of uplink to a data block of base station transmission, and a continuous N sub-frame of uplink is called the binding subframe; The base station merges laggard row decoding with N the redundancy versions that receives, according to whether successfully decoded the decision is to send ACK feedback signaling or NACK feedback signaling to UE, and the time location that sends ACK or NACK is determined according to the time location of last subframe in the binding subframe; UE then needs N redundancy versions of data block retransmitted if receive NACK, and the time location of re-transmission is determined according to the time location of first subframe in the binding subframe.
System is an example with Frequency Division Duplexing (FDD) (FDD), as shown in Figure 1, UE sends 3 redundancy versions of data block in three continuous subframes (0 work song frame, 1 work song frame and 2 work song frames), be that 6 work song frames of 4 subframes receive ACK or the NACK feedback signaling that send the base station in the time interval with 2 work song frames.When carrying out data re-transmission, choose 3 continuous sub-frame of uplink since each subframe of k+2*HARQ RTT, and utilize 3 sub-frame of uplink choosing that 3 redundancy versions of data block are retransmitted, wherein, k is the numbering of first subframe in continuous three subframes, and HARQ RTT is for mixing automatic repeat requests two-way time.
As seen, in TTI Bunding scheme, the binding subframe is an independent resource, corresponding HARQ process, and only need a dispatch and a feedback signaling, the transmission position of feedback signaling is corresponding with last subframe in the binding subframe, and the re-transmission position of data block is corresponding with first subframe in the binding subframe, and data block retransmits and the time interval of initial transmission is 2 times that single sub-frame is transmitted.
At present in long-term evolution multi-carrier (LTE-A) system that proposes, introduced carrier aggregation (carrieraggregation) technology, adopt this technology to do expansion to bandwidth easily, there is the member carrier of a plurality of different frequencies in system, as shown in Figure 2, the LTE-A system for constituting by 3 member carriers.
In realizing process of the present invention, the inventor finds to exist in the prior art following technical problem:
In the LTE-A system, UE can support a plurality of member carriers, if still adopt the TTI Bunding scheme of above-mentioned LTE system, then the up covering of UE is relatively poor.
Summary of the invention
The embodiment of the invention provides subframe binding transmission method, system and the equipment in a kind of long-term evolution multi-carrier system, is used to improve up covering.
The embodiment of the invention provides the subframe binding transmission method in a kind of long-term evolution multi-carrier system, and this method comprises:
Terminal is chosen at least two member carriers as binding member carriers from the member carrier of self supporting, and determines to wait to bind the number of subframe;
From described two binding member carriers, choose a plurality of sub-frame of uplink at least as the binding subframe according to the described number of binding subframe of waiting;
Utilize described binding subframe to transmit same data block.
The embodiment of the invention provides a kind of terminal, and this terminal comprises:
Carrier wave is chosen the unit, is used for choosing at least two member carriers as binding member carriers from the member carrier of described terminal support;
The quantity determining unit is used to determine to wait to bind the number of subframe;
Subframe is chosen the unit, is used for choosing a plurality of sub-frame of uplink as the binding subframe according to the described number of binding subframe of waiting from described at least two binding member carriers;
Data transmission unit is used to utilize described binding subframe to transmit same data block.
The embodiment of the invention provides a kind of subframe binding transmission system, and this system comprises:
The base station is used for sending dispatch to terminal;
Terminal is used for choosing at least two member carriers as binding member carriers from the member carrier of self supporting, and determining to wait to bind the number of subframe according to the described dispatch that receives; From described two binding member carriers, choose a plurality of sub-frame of uplink at least as the binding subframe according to the described number of binding subframe of waiting, and utilize described binding subframe to transmit same data block.
Among the present invention, terminal is chosen at least two member carriers as binding member carriers from the member carrier of self supporting, from these two binding member carriers, choose a plurality of sub-frame of uplink at least as the binding subframe, and utilize a plurality of binding subframes of choosing to transmit same data block, by a plurality of subframes on the different members carrier wave being bound and are utilized a plurality of subframe transmission data blocks of binding, can make terminal when subframe binding transmission, obtain frequency diversity gain, thereby improve up covering.
Description of drawings
Fig. 1 is the exemplary plot of subframe binding in the prior art;
Fig. 2 is a multicarrier schematic diagram in the LTE-A system in the prior art;
The method flow schematic diagram that Fig. 3 provides for the embodiment of the invention;
Fig. 4 A is the subframe binding schematic diagram of the embodiment of the invention one;
Fig. 4 B is the subframe binding schematic diagram of the embodiment of the invention two;
Fig. 4 C is the subframe binding schematic diagram of the embodiment of the invention three;
Fig. 4 D is the subframe binding schematic diagram of the embodiment of the invention four;
Fig. 4 E is the subframe binding schematic diagram of the embodiment of the invention five;
The system configuration schematic diagram that Fig. 5 provides for the embodiment of the invention;
The device structure schematic diagram that Fig. 6 provides for the embodiment of the invention.
Embodiment
In order to improve up covering, the embodiment of the invention provides the subframe binding transmission method in a kind of LTE-A system, in this method, terminal is chosen a plurality of sub-frame of uplink at least as the binding subframe from two member carriers self supporting, and utilizes a plurality of binding subframes of choosing to transmit a plurality of versions of same data block.
Referring to Fig. 3, the subframe binding transmission method in the LTE-A system that the embodiment of the invention provides specifically may further comprise the steps:
Step 30: terminal is chosen at least two member carriers as binding member carriers from the member carrier of self supporting, and determines to wait to bind the number of subframe;
Step 31: terminal is chosen a plurality of sub-frame of uplink at least as the binding subframe according to the number of determining of binding subframe of waiting from two binding member carriers having chosen;
Step 32: a plurality of binding subframes that the terminal utilization has been chosen are transmitted same data block.
In the step 30, the concrete mode that terminal is chosen binding member carriers can have following two kinds:
First kind, choose binding member carriers according to the dispatch of base station.Concrete, terminal is obtained at least two member carrier identification informations that carry in the multi-subframe integrated scheduling signaling of sending the base station, for each the member carrier sign at least two member carrier signs, from the member carrier of self supporting, choose the corresponding member carrier of this member carrier sign as binding member carriers.
Second kind, choose binding member carriers according to pre-configured information.Concrete, terminal is chosen at least two member carriers as binding member carriers according to pre-configured binding member carriers selection rule from the member carrier of self supporting.For example, the binding member carriers selection rule can be for choosing fixing member carrier as binding member carriers, perhaps chooses the member carrier that satisfies the frequency condition of setting as binding member carriers etc.
Terminal determines to wait that the concrete mode of binding the number of subframe also can have following two kinds:
First kind, determine to wait to bind the number of subframe according to the dispatch of base station.Concrete, terminal is obtained the number information of waiting to bind subframe of carrying in the multi-subframe integrated scheduling signaling of sending the base station, determines to wait to bind the number of subframe according to this information.For example, the number information that waiting of carrying in the multi-subframe integrated scheduling signaling bound subframe is 4, and the number of then determining to wait to bind subframe is 4.
Second kind, determine to wait to bind the number of subframe according to pre-configured information.Concrete, terminal is obtained the number information that subframe is bound in pre-configured waiting, and determines to wait to bind the number of subframe according to this information.
In the step 31, terminal is chosen being implemented as follows of binding subframe:
At first, terminal is obtained the uplink frame positional information of carrying in the multi-subframe integrated scheduling signaling of sending the base station, and the ordinal relation of at least two binding member carriers choosing in the determining step 30 and need choose the number of sub-frame of uplink on each binding member carriers;
Here, terminal can be determined the ordinal relation between the binding member carriers and need choose the number of sub-frame of uplink on each binding member carriers according to the dispatch of base station or pre-configured information, promptly choose pattern information or pre-configured binding subframe is chosen pattern information, determine the ordinal relation of at least two binding member carriers and on each binding member carriers, need choose the number of sub-frame of uplink according to the binding subframe of carrying in the multi-subframe integrated scheduling signaling.For example, the binding subframe is chosen and is comprised binding member carriers 1 in the pattern information, ordinal relation between binding member carriers 2 and the binding member carriers 3 is: binding member carriers 1 is positioned at first order, binding member carriers 3 is positioned at second order, binding member carriers 2 is positioned at the 3rd order, the binding subframe is chosen and also is included in binding member carriers 1 in the pattern information, the number that need choose sub-frame of uplink on binding member carriers 2 and the binding member carriers 3 is 1, then choose binding during subframe follow-up, at first on the binding member carriers 1 that is positioned at first order, choose a binding subframe, then, on the binding member carriers 3 that is positioned at second order, choose a binding subframe, at last, on the binding member carriers 2 that is positioned at the 3rd order, choose a binding subframe.
Then, terminal is a start frame with the sub-frame of uplink of described uplink frame position correspondence, choose quantity according to described ordinal relation from each binding member carriers and choose the sub-frame of uplink of the number of sub-frame of uplink, and the sub-frame of uplink of choosing is defined as binding subframe for the need of this binding member carriers correspondence.The total quantity of the binding subframe of choosing is consistent with the described number of waiting to bind subframe.Certainly, the total quantity of the binding subframe of choosing and the described number of waiting to bind subframe also can exist certain to determine relation, and for example, the total quantity of the binding subframe of choosing is the described twice of waiting to bind the number of subframe.Its specific implementation can may further comprise the steps S01～step S03:
Step S01: according to described ordinal relation, for the binding member carriers that is positioned at the 1st order at least two binding member carriers, the need that begin to choose this binding member carriers correspondence on this binding member carriers, from described start frame are chosen the sub-frame of uplink of number of sub-frame of uplink as the binding subframe; To step S02;
Step S02: for the binding member carriers that is positioned at next order at least two binding member carriers, the need of choosing this binding member carriers correspondence on this binding member carriers are chosen the sub-frame of uplink of number of sub-frame of uplink as the binding subframe, the time location of the sub-frame of uplink that this is chosen after the time location of the last sub-frame of uplink of once choosing and with on the time location of the sub-frame of uplink once chosen continuous;
Certainly, the time location of the sub-frame of uplink that this is chosen continuously also can be discontinuous with the time location of the last sub-frame of uplink of choosing, the time location of the sub-frame of uplink that this is chosen has definite time interval with the time location of the last sub-frame of uplink of choosing, for example, the time span of 2 subframes in interval.
Step S03: judge whether to exist the binding member carriers of next order, promptly whether have the binding member carriers that also is not selected the binding subframe, if return step S02, otherwise this flow process finishes.
In the step 32, the specific implementation that terminal utilization binding subframe is transmitted same data block is as follows:
At first, the corresponding relation of each binding member carriers and data block version at least two binding member carriers that terminal is determined to have chosen, this data block version are a version in a plurality of versions of same data block waiting for transmission;
Here, when terminal is determined the corresponding relation of binding member carriers and data block version, specifically can from the multi-subframe integrated scheduling signaling that send the base station, obtain the corresponding relation of each binding member carriers and data block version, also can determine the corresponding relation of binding member carriers and data block version according to pre-configured information.Certain binding member carriers can be corresponding with one or more data block versions, and the number of the data block version of this binding member carriers correspondence is consistent with the number of the binding subframe of choosing on this binding member carriers.
Then, for each binding member carriers at least two binding member carriers having chosen, the binding subframe that utilization is chosen from this binding member carriers is transmitted the data block version of this binding member carriers correspondence.For example, the version 3 of the version 1 of the version 0 of binding member carriers 1 corresponding data piece, binding member carriers 2 corresponding data pieces and version 2, binding member carriers 3 corresponding data pieces, then utilize the version 0 of a binding subframe transmission data block of on binding member carriers 1, choosing, the version 1 of the binding subframe transmission data block that utilization is chosen on binding member carriers 2, the version 2 of another binding subframe transmission data block utilize a version 3 of binding the subframe transmission data block of choosing on binding member carriers 3.
After step 32, the base station receives a plurality of versions of the data block that terminal sends, and sends response message according to the decode results to these a plurality of versions to UE, and this response message is for replying (ACK) message or wrong responses (NACK) message.
Terminal determines that the base station sends the member carrier of described response message and the position of subframe, and this subframe from this member carrier receives described response message.Here, when terminal determines that the base station sends the position of the member carrier of described response message and subframe, the response of carrying in the multi-subframe integrated scheduling signaling that can send according to the base station sends positional information to be determined, also can send positional information according to pre-configured response and determine.For example, in the multi-subframe integrated scheduling signaling response that carry or pre-configured send positional information on binding member carriers 3, with the subframe of choosing that is spaced apart 4 subframe lengths of respectively binding time binding subframe the latest in the subframe on send response message, then the subframe that is spaced apart 4 subframe lengths of time binding subframe the latest receives the response message to data block that send the base station to terminal the subframe with respectively binding of choosing on binding member carriers 3 according to this information.
If the response message that receives of terminal is a NACK message, after then terminal is determined re-transmission mode to described data block, utilize at least two binding up-link carriers having chosen that a plurality of versions of data block transmitted in the step 32 are retransmitted according to this re-transmission mode.The re-transmission mode specifically can comprise following three kinds:
First kind, to each version in a plurality of versions of data block,, determine the binding member carriers of this version correspondence according to the corresponding relation of described binding member carriers and data block version, utilize the binding member carriers of determining to retransmit this version.That is, the member carrier of the re-transmission of same version utilization is identical with the member carrier of initial transmission utilization.
Second kind, to each version in a plurality of versions of data block, corresponding relation according to described binding member carriers and data block version, determine the binding member carriers of this version correspondence, other binding member carriers at least two binding up-link carriers that utilization has been chosen except that the binding member carriers of determining retransmit this version.That is, the member carrier of the re-transmission of same version utilization is different with the member carrier of initial transmission utilization.
The third, binding up-link carriers at least two binding up-link carriers that utilization has been chosen retransmit each version of data block.
For first kind and second kind of re-transmission mode, its common trait is to utilize at least two binding member carriers that a plurality of versions of data block are retransmitted, therefore, as long as the re-transmission mode that satisfies this feature all can, and be not limited to above-mentioned first kind and the second way.Utilize at least two binding member carriers that a plurality of versions of data block are retransmitted, can make terminal obtain bigger frequency gain, thereby further improve up covering.
Retransmitting the re-transmission mode information of carrying in the concrete multi-subframe integrated scheduling signaling that adopts which kind of mode to send according to pre-configured re-transmission mode information or base station determines.
After the binding member carriers that each version utilized of having determined re-transmitting data block, need determine the where re-transmission respective version in binding member carriers, the re-transmission positional information of carrying in the multi-subframe integrated scheduling signaling that can send according to pre-configured re-transmission positional information or base station is determined.For example, the re-transmission positional information of carrying in the pre-configured or multi-subframe integrated scheduling signaling can for: be to retransmit this version on the subframe of HARQ RTT of twice in the time interval with the initial transmission of identical version.
Need to prove that the present invention is applicable to long-term advancing time division duplex (LTE TDD) multicarrier system, and Long Term Evolution Frequency Division Duplexing (FDD) (LTE FDD) multicarrier system.
With specific embodiment the method that the embodiment of the invention provides is described below:
Embodiment one:
In the present embodiment, the initial transmission of each version of data block and re-transmission are on same member carrier, shown in Fig. 4 A:
The number of waiting to bind subframe is 3 subframes, treats that binding member carriers is member carrier 1, member carrier 2 and member carrier 3.
UE is choosing 0 work song frame, is choosing 1 work song frame on the member carrier 2, choosing 2 work song frames as the binding subframe on member carrier 3 on the member carrier 1; And on member carrier 1, send the version 0 (RV0) of data block, and on member carrier 2, send the version 1 (RV1) of data block, on member carrier 3, send the version 2 (RV2) of data block; The 6 work song frames of the feedback of ACK/NACK on member carrier 3, promptly Fan Kui time is and the 3rd binding subframe 4 subframes of time location binding sub-frame interval the latest just; When data block is retransmitted, the re-transmission mode be the initial transmission of the re-transmission of each version and this version on same member carrier, and the HARQ RTT of the time interval twice of the initial transmission of the time of the re-transmission of each version and this version.
Embodiment two:
In the present embodiment, the initial transmission of the identical version of data block and re-transmission are not exclusively on same member carrier, shown in Fig. 4 B:
The number of waiting to bind subframe still is 3 subframes, treats that binding member carriers is member carrier 1, member carrier 2 and member carrier 3.
UE is choosing 0 work song frame, is choosing 1 work song frame on the member carrier 2, choosing 2 work song frames as the binding subframe on member carrier 3 on the member carrier 1; And on member carrier 1, send the version 0 (RV0) of data block, and on member carrier 2, send the version 1 (RV1) of data block, on member carrier 3, send the version 2 (RV2) of data block; The 5 work song frames of the feedback of ACK/NACK on member carrier 2, promptly Fan Kui time is 4 subframes of binding sub-frame interval of promptly choosing on member carrier 2 with the second binding subframe; When data block is retransmitted, the re-transmission mode is that the re-transmission of version 0 of data block is on member carrier 3, the re-transmission of version 1 is on member carrier 2, the re-transmission of version 2 is on member carrier 1, and the HARQ RTT of the time interval twice of the initial transmission of the time of the re-transmission of each version and this version.
Embodiment three:
In the present embodiment, a plurality of UE time-division frequency division multiplexing one group binding resources, shown in Fig. 4 C:
For UE1, UE2 and UE3, wait that the number of binding subframe is 3 subframes, treat that binding member carriers is member carrier 1, member carrier 2 and member carrier 3.
For UE1, choose 0 work song frame on the member carrier 1,1 work song frame on the member carrier 2,2 work song frames on the member carrier 3 as the binding subframe; And on member carrier 1, send the version 0 (RV0) of data block, and on member carrier 2, send the version 1 (RV1) of data block, on member carrier 3, send the version 2 (RV2) of data block; The 6 work song frames of the feedback of ACK/NACK on member carrier 3; When data block is retransmitted, the re-transmission mode is that the re-transmission of version 0 of data block is on member carrier 3, the re-transmission of version 1 is on member carrier 2, the re-transmission of version 2 is on member carrier 1, and the HARQ RTT of the time interval twice of the initial transmission of the time of the re-transmission of each version and this version.
For UE2, choose 1 work song frame on the member carrier 1,2 work song frames on the member carrier 2,0 work song frame on the member carrier 3 as the binding subframe; And on member carrier 1, send the version 0 (RV0) of data block, and on member carrier 2, send the version 1 (RV1) of data block, on member carrier 3, send the version 2 (RV2) of data block; The 6 work song frames of the feedback of ACK/NACK on member carrier 2; When data block is retransmitted, the re-transmission mode is that the re-transmission of version 0 of data block is on member carrier 1, the re-transmission of version 1 is on member carrier 3, the re-transmission of version 2 is on member carrier 2, and the HARQ RTT of the time interval twice of the initial transmission of the time of the re-transmission of each version and this version.
For UE3, choose 2 work song frames on the member carrier 1,0 work song frame on the member carrier 2,1 work song frame on the member carrier 3 as the binding subframe; And on member carrier 1, send the version 0 (RV0) of data block, and on member carrier 2, send the version 1 (RV1) of data block, on member carrier 3, send the version 2 (RV2) of data block; The 6 work song frames of the feedback of ACK/NACK on member carrier 1; When data block is retransmitted, the re-transmission mode is that the re-transmission of version 0 of data block is on member carrier 2, the re-transmission of version 1 is on member carrier 1, the re-transmission of version 2 is on member carrier 3, and the HARQ RTT of the time interval twice of the initial transmission of the time of the re-transmission of each version and this version.
As seen, in the present embodiment if with 0～2 work song frame on member carrier 1, member carrier 2 and the member carrier 3 as a group binding resource, choose by rational binding subframe, UE1, UE2 and UE3 are multiplexing should the binding resource.
When binding member carriers number and the number of waiting to bind subframe are inconsistent, for example have only 3 member carriers, but the number of waiting to bind subframe is 4, and at this moment can only choose two member carriers is binding member carriers, and promptly each binding member carriers sends 2 versions of data block.Also can choose 3 member carriers is binding member carriers, but has a binding member carriers to send 2 versions of data block, and other two binding member carriers send 1 version of data block.
Embodiment four:
In the present embodiment, same UE transmits a plurality of data blocks in a group binding resource, shown in Fig. 4 D:
As a group binding resource, UE needs in 3 data blocks of this binding transmitted over resources with 0～2 work song frame on member carrier 1, member carrier 2 and the member carrier 3.
For data block 1, choose 0 work song frame on the member carrier 1,1 work song frame on the member carrier 2,2 work song frames on the member carrier 3 as the binding subframe; And on member carrier 1, send the version 0 (RV0) of data block 1, and on member carrier 2, send the version 1 (RV1) of data block 1, on member carrier 3, send the version 2 (RV2) of data block 1; The 6 work song frames of the feedback of ACK/NACK on member carrier 3; When data block is retransmitted, the re-transmission mode is that the re-transmission of version 0 of data block 1 is on member carrier 3, the re-transmission of version 1 is on member carrier 2, the re-transmission of version 2 is on member carrier 1, and the HARQ RTT of the time interval twice of the initial transmission of the time of the re-transmission of each version and this version.
For data block 2, choose 1 work song frame on the member carrier 1,2 work song frames on the member carrier 2,0 work song frame on the member carrier 3 as the binding subframe; And on member carrier 1, send the version 0 (RV0) of data block 2, and on member carrier 2, send the version 1 (RV1) of data block 2, on member carrier 3, send the version 2 (RV2) of data block 2; The 6 work song frames of the feedback of ACK/NACK on member carrier 2; When data block is retransmitted, the re-transmission mode is that the re-transmission of version 0 of data block 2 is on member carrier 1, the re-transmission of version 1 is on member carrier 3, the re-transmission of version 2 is on member carrier 2, and the HARQ RTT of the time interval twice of the initial transmission of the time of the re-transmission of each version and this version.
For data block 3, choose 2 work song frames on the member carrier 1,0 work song frame on the member carrier 2,1 work song frame on the member carrier 3 as the binding subframe; And on member carrier 1, send the version 0 (RV0) of data block 3, and on member carrier 2, send the version 1 (RV1) of data block 3, on member carrier 3, send the version 2 (RV2) of data block 3; The 6 work song frames of the feedback of ACK/NACK on member carrier 1; When data block is retransmitted, the re-transmission mode is that the re-transmission of version 0 of data block 3 is on member carrier 2, the re-transmission of version 1 is on member carrier 1, the re-transmission of version 2 is on member carrier 3, and the HARQ RTT of the time interval twice of the initial transmission of the time of the re-transmission of each version and this version.
Embodiment five:
Embodiment one～embodiment four is an example with the FDD system all, and present embodiment is an example with the frame structure of the 1st type in the TDD system, and shown in Fig. 4 E, wherein D represents descending sub frame, and UL represents sub-frame of uplink, and S represents special subframe:
The number of waiting to bind subframe is 3 subframes, treats that binding member carriers is member carrier 1, member carrier 2 and member carrier 3.
UE is choosing sub-frame of uplink 1 (UL1), is choosing sub-frame of uplink 2 on the member carrier 2, choosing sub-frame of uplink 3 as the binding subframe on member carrier 3 on the member carrier 1,3 of choosing binding subframe keeps continuous on up time location; On member carrier 1, send the version 0 (RV0) of data block, on member carrier 2, send the version 1 (RV1) of data block, on member carrier 3, send the version 2 (RV2) of data block; The feedback of ACK/NACK on the member carrier 3, with time interval of the subframe that sends RV2 be on the special subframe of 4 subframes; When data block is retransmitted, the re-transmission mode is that the re-transmission of version 0 of data block is on member carrier 1, the re-transmission of version 1 is on member carrier 2, the re-transmission of version 2 is on member carrier 3, and the time location that each version retransmits is numbered on the identical sub-frame of uplink in the next frame of this version initial transmission place frame.
Referring to Fig. 5, the embodiment of the invention also provides a kind of subframe binding transmission system, and this system comprises:
Described terminal 51 is used for: obtain at least two member carrier identification informations that described multi-subframe integrated scheduling signaling is carried, for each the member carrier sign in described at least two member carriers sign, from the member carrier of self supporting, choose the corresponding member carrier of this member carrier sign as binding member carriers.
Described terminal 51 is used for: obtain the number information of waiting to bind subframe that described multi-subframe integrated scheduling signaling is carried, determine to wait to bind the number of subframe according to this information.
Described terminal 51 is used for: obtain the uplink frame positional information that described multi-subframe integrated scheduling signaling is carried, and determine the ordinal relation of described at least two binding member carriers and need choose the number of sub-frame of uplink on each binding member carriers; Sub-frame of uplink with described uplink frame position correspondence is a start frame, chooses sub-frame of uplink as the binding subframe from each binding member carriers successively according to described ordinal relation, and the total quantity of the binding subframe of choosing is consistent with the described number of waiting to bind subframe.
Described terminal 51 is used for: determine the corresponding relation of described each binding member carriers of at least two binding member carriers and data block version, described data block version is a version in a plurality of versions of described same data block; For each binding member carriers in described at least two binding member carriers, the binding subframe that utilization is chosen from this binding member carriers is transmitted the data block version of this binding member carriers correspondence.
Described base station 50 also is used for: to the response message of described terminal transmission to described data block;
Accordingly, described terminal 51 also is used for: obtain described base station from described multi-subframe integrated scheduling signaling and send the member carrier of described response message and the position of subframe, and the described subframe from described member carrier receives described response message; If described response message is a wrong responses NACK message, then determine re-transmission mode to described data block, utilize described at least two binding up-link carriers that a plurality of versions of described data block are retransmitted according to this re-transmission mode.
Described terminal 51 is used for: to each version of described a plurality of versions, determine the binding member carriers of this version correspondence according to described corresponding relation, utilize the binding member carriers of determining to retransmit this version; Perhaps, utilize other binding member carriers of removing definite binding member carriers in described at least two binding up-link carriers to retransmit this version.
Referring to Fig. 6, the embodiment of the invention also provides a kind of terminal, can be applied in the subframe binding transmission system, and this terminal comprises:
Carrier wave is chosen unit 60, is used for choosing at least two member carriers as binding member carriers from the member carrier of described terminal support;
Subframe is chosen unit 62, is used for choosing a plurality of sub-frame of uplink as the binding subframe according to the described number of binding subframe of waiting from described at least two binding member carriers;
Described carrier wave is chosen unit 60 and is comprised that first chooses unit and/or second and choose the unit, wherein:
First chooses the unit, is used for obtaining at least two member carrier identification informations that the multi-subframe integrated scheduling signaling sent the base station is carried; For each the member carrier sign in described at least two member carriers sign, from the member carrier of self supporting, choose the corresponding member carrier of this member carrier sign as binding member carriers;
Second chooses the unit, is used for according to pre-configured binding member carriers selection rule, chooses at least two member carriers as binding member carriers from the member carrier of self supporting.
Described quantity determining unit 61 comprises first determining unit and/or second determining unit, wherein:
First determining unit is used for obtaining the number information of waiting to bind subframe that the multi-subframe integrated scheduling signaling sent the base station is carried, and determines to wait to bind the number of subframe according to this information;
Second determining unit is used for determining to wait to bind according to the number information that subframe is bound in pre-configured waiting the number of subframe.
Described subframe is chosen unit 62 and is comprised:
Acquiring unit is used to obtain the uplink frame positional information that the multi-subframe integrated scheduling signaling sent the base station is carried;
Determining unit is used for determining the ordinal relation of described at least two binding member carriers;
Choose the unit, the sub-frame of uplink that is used for described uplink frame position correspondence is a start frame, choose sub-frame of uplink as the binding subframe from each binding member carriers successively according to described ordinal relation, the total quantity of the binding subframe of choosing is consistent with the described number of waiting to bind subframe.
The described unit of choosing comprises:
The primary election unit, be used for being positioned at the binding member carriers of the 1st order for described at least two binding member carriers, determine to need on this binding member carriers, to choose the number of binding subframe, and on this binding member carriers, begin to choose the sub-frame of uplink of described number as the binding subframe from described start frame;
Inferior menu unit, be used for for the binding member carriers that is positioned at next order, determine to need on this binding member carriers, to choose the number of binding subframe, the sub-frame of uplink of choosing described number on this binding member carriers is as the binding subframe, and this sub-frame of uplink of choosing is continuous with the time location of the last sub-frame of uplink of choosing;
Judging unit is used to judge whether to exist next binding member carriers in proper order, if then trigger described menu unit and carry out selection operation.
Described determining unit is used for:
Choose pattern information or pre-configured binding subframe is chosen pattern information according to the binding subframe of carrying in the described multi-subframe integrated scheduling signaling, determine the ordinal relation of described at least two binding member carriers.
Described data transmission unit 63 comprises:
Corresponding unit is used for determining that the corresponding relation of described each binding member carriers of at least two binding member carriers and data block version, described data block version are a version in a plurality of versions of described same data block;
Transmitting element is used for each binding member carriers for described at least two binding member carriers, and the binding subframe that utilization is chosen from this binding member carriers is transmitted the data block version of this binding member carriers correspondence.
This terminal further comprises:
Response that carry or pre-configured sends positional information in the multi-subframe integrated scheduling signaling that response receiving element 64 is sent according to the base station, determines that the base station sends the member carrier of the response message of described data block and the position of subframe.Re-transmission mode information that carry or pre-configured in the multi-subframe integrated scheduling signaling that retransmission unit 65 is sent according to the base station is determined the re-transmission mode to described data block.
Described retransmission unit 65 is used for:
To each version in described a plurality of versions, determine the binding member carriers of this version correspondence according to described corresponding relation, utilize the binding member carriers of determining to retransmit this version; Perhaps, utilize other binding member carriers of removing definite binding member carriers in described at least two binding up-link carriers to retransmit this version.
Need to prove, the multi-subframe integrated scheduling signaling that the base station sends among the present invention can also be other dispatchs of system, identical when the present invention program's execution is with the multi-subframe integrated scheduling signaling when being other dispatchs, can realize goal of the invention of the present invention equally.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the invention provides, terminal is chosen at least two member carriers as binding member carriers from the member carrier of self supporting, from these two binding member carriers, choose a plurality of sub-frame of uplink at least as the binding subframe, and utilize a plurality of binding subframes of choosing to transmit same data block, by a plurality of subframes on the different members carrier wave being bound and are utilized a plurality of subframe transmission data blocks of binding, can make terminal when subframe binding transmission, obtain frequency diversity gain, thereby improve up covering.
In the scheme that the embodiment of the invention provides, when choosing the binding subframe, be chosen at sub-frame of uplink continuous on the time location, can rationally utilize the system transmissions resource fully, and realize that degree of load is lower as the binding subframe.
In the scheme that the embodiment of the invention provides, when data block is retransmitted, also utilize a plurality of member carriers that a plurality of versions of data block are retransmitted, can make terminal obtain bigger frequency diversity gain, further improve up covering.
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 (23)
1. the subframe binding transmission method in the long-term evolution multi-carrier system is characterized in that this method comprises:
Terminal is chosen at least two member carriers as binding member carriers from the member carrier of self supporting, and determines to wait to bind the number of subframe;
From described two binding member carriers, choose a plurality of sub-frame of uplink at least as the binding subframe according to the described number of binding subframe of waiting;
Utilize described binding subframe to transmit same data block.
2. the method for claim 1 is characterized in that, described terminal is chosen at least two member carriers and comprised as binding member carriers from the member carrier of self supporting:
Described terminal is obtained at least two member carrier identification informations that carry in the dispatch of sending the base station; For each the member carrier sign in described at least two member carriers sign, from the member carrier of self supporting, choose the corresponding member carrier of this member carrier sign as binding member carriers; Perhaps,
Described terminal is chosen at least two member carriers as binding member carriers according to pre-configured binding member carriers selection rule from the member carrier of self supporting.
3. the method for claim 1 is characterized in that, described terminal determines to wait that the number of binding subframe comprises:
Described terminal is obtained the number information of waiting to bind subframe of carrying in the dispatch of sending the base station, determines to wait to bind the number of subframe according to this information; Perhaps,
The number information that described terminal is bound subframe according to pre-configured waiting determines to wait to bind the number of subframe.
4. the method for claim 1 is characterized in that, describedly chooses a plurality of sub-frame of uplink at least according to the described number of waiting to bind subframe from described two binding member carriers and comprises as the binding subframe:
Obtain the uplink frame positional information of carrying in the dispatch of sending the base station, and determine the ordinal relation of described at least two binding member carriers;
Sub-frame of uplink with described uplink frame position correspondence is a start frame, chooses sub-frame of uplink as the binding subframe from each binding member carriers successively according to described ordinal relation, and the total quantity of the binding subframe of choosing is consistent with the described number of waiting to bind subframe.
5. method as claimed in claim 4 is characterized in that, described according to described ordinal relation successively from each binding member carriers choose sub-frame of uplink as the binding subframe comprise:
A, for be positioned in described at least two binding member carriers the 1st the order binding member carriers, determine to need on this binding member carriers, to choose the number of binding subframe, and on this binding member carriers, begin to choose the sub-frame of uplink of described number as the binding subframe from described start frame;
B, for be positioned at next the order binding member carriers, determine to need on this binding member carriers, to choose the number of binding subframe, the sub-frame of uplink of choosing described number on this binding member carriers is as the binding subframe, and this sub-frame of uplink of choosing is continuous with the time location of the last sub-frame of uplink of choosing;
C, judge whether to exist binding member carriers of next order, if then return step B; Otherwise this sub-frame of uplink is chosen flow process and is finished.
6. method as claimed in claim 4 is characterized in that, chooses pattern information or pre-configured binding subframe is chosen pattern information according to the binding subframe of carrying in the described dispatch, determines the ordinal relation of described at least two binding member carriers.
7. the method for claim 1 is characterized in that, describedly utilizes described binding subframe to transmit same data block to comprise:
Determine the corresponding relation of each binding member carriers and data block version in described at least two binding member carriers, described data block version is a version in a plurality of versions of described same data block;
For each binding member carriers in described at least two binding member carriers, the binding subframe that utilization is chosen from this binding member carriers is transmitted the data block version of this binding member carriers correspondence.
8. method as claimed in claim 7 is characterized in that, is utilizing after described binding subframe transmits same data block, and this method further comprises:
Described terminal is determined the base station transmission to the member carrier of the response message of described data block and the position of subframe, and the described subframe from described member carrier receives described response message;
If described response message is a wrong responses NACK message, then described terminal is determined the re-transmission mode to described data block, utilizes described at least two binding up-link carriers that a plurality of versions of described data block are retransmitted according to this re-transmission mode.
9. method as claimed in claim 8, it is characterized in that, response that carry or pre-configured sends positional information in the dispatch that described terminal is sent according to the base station, determines that the base station sends the member carrier of the response message of described data block and the position of subframe.
10. method as claimed in claim 8 is characterized in that, re-transmission mode information that carry or pre-configured in the dispatch that described terminal is sent according to the base station is determined the re-transmission mode to described data block.
11. method as claimed in claim 8 is characterized in that, described re-transmission mode comprises:
To each version in described a plurality of versions, utilize the binding member carriers of this version correspondence to retransmit this version; Perhaps, utilize that other binding member carriers except that the binding member carriers of this version correspondence retransmit this version in described at least two binding up-link carriers.
12., it is characterized in that described dispatch is multi-subframe integrated scheduling signaling or other dispatchs as arbitrary described method in the claim 2,3,4,6,9,10.
13. a terminal is characterized in that, this terminal comprises:
Carrier wave is chosen the unit, is used for choosing at least two member carriers as binding member carriers from the member carrier of described terminal support;
The quantity determining unit is used to determine to wait to bind the number of subframe;
Subframe is chosen the unit, is used for choosing a plurality of sub-frame of uplink as the binding subframe according to the described number of binding subframe of waiting from described at least two binding member carriers;
Data transmission unit is used to utilize described binding subframe to transmit same data block.
14. terminal as claimed in claim 13 is characterized in that, described carrier wave is chosen the unit and is comprised that first chooses unit and/or second and choose the unit, wherein:
First chooses the unit, is used for obtaining at least two member carrier identification informations that the dispatch sent the base station carries; For each the member carrier sign in described at least two member carriers sign, from the member carrier of self supporting, choose the corresponding member carrier of this member carrier sign as binding member carriers;
Second chooses the unit, is used for according to pre-configured binding member carriers selection rule, chooses at least two member carriers as binding member carriers from the member carrier of self supporting.
15. terminal as claimed in claim 13 is characterized in that, described quantity determining unit comprises first determining unit and/or second determining unit, wherein:
First determining unit is used for obtaining the number information of waiting to bind subframe that the dispatch sent the base station carries, and determines to wait to bind the number of subframe according to this information;
Second determining unit is used for determining to wait to bind according to the number information that subframe is bound in pre-configured waiting the number of subframe.
16. terminal as claimed in claim 13 is characterized in that, described subframe is chosen the unit and is comprised:
Acquiring unit is used to obtain the frame position information that the dispatch sent the base station carries;
Determining unit is used for determining the ordinal relation of described at least two binding member carriers;
Choose the unit, the sub-frame of uplink that is used for described frame position correspondence is a start frame, choose sub-frame of uplink as the binding subframe from each binding member carriers successively according to described ordinal relation, the total quantity of the binding subframe of choosing is consistent with the described number of waiting to bind subframe.
17. terminal as claimed in claim 16 is characterized in that, the described unit of choosing comprises:
The primary election unit, be used for being positioned at the binding member carriers of the 1st order for described at least two binding member carriers, determine to need on this binding member carriers, to choose the number of binding subframe, and on this binding member carriers, begin to choose the sub-frame of uplink of described number as the binding subframe from described start frame;
Inferior menu unit, be used for for the binding member carriers that is positioned at next order, determine to need on this binding member carriers, to choose the number of binding subframe, the sub-frame of uplink of choosing described number on this binding member carriers is as the binding subframe, and this sub-frame of uplink of choosing is continuous with the time location of the last sub-frame of uplink of choosing;
Judging unit is used to judge whether to exist next binding member carriers in proper order, if then trigger described menu unit and carry out selection operation.
18. terminal as claimed in claim 13 is characterized in that, described data transmission unit comprises:
Corresponding unit is used for determining that the corresponding relation of described each binding member carriers of at least two binding member carriers and data block version, described data block version are a version in a plurality of versions of described same data block;
Transmitting element is used for each binding member carriers for described at least two binding member carriers, and the binding subframe that utilization is chosen from this binding member carriers is transmitted the data block version of this binding member carriers correspondence.
19. terminal as claimed in claim 18 is characterized in that, this terminal further comprises:
The response receiving element be used for determining the base station transmission to the member carrier of the response message of described data block and the position of subframe, and the described subframe from described member carrier receives described response message;
Retransmission unit is used for when described response message is wrong responses NACK message, determines the re-transmission mode to described data block, utilizes described at least two binding up-link carriers that a plurality of versions of described data block are retransmitted according to this re-transmission mode.
20. terminal as claimed in claim 19 is characterized in that, described retransmission unit is used for:
To each version in described a plurality of versions, determine the binding member carriers of this version correspondence according to described corresponding relation, utilize the binding member carriers of determining to retransmit this version; Perhaps, utilize other binding member carriers of removing definite binding member carriers in described at least two binding up-link carriers to retransmit this version.
21. a subframe binding transmission system is characterized in that, this system comprises:
The base station is used for sending dispatch to terminal;
Terminal is used for choosing at least two member carriers as binding member carriers from the member carrier of self supporting, and determining to wait to bind the number of subframe according to the described dispatch that receives; From described two binding member carriers, choose a plurality of sub-frame of uplink at least as the binding subframe according to the described number of binding subframe of waiting, and utilize described binding subframe to transmit same data block.
22. system as claimed in claim 21 is characterized in that, described terminal is used for:
Obtain the frame position information that described dispatch carries, and determine the ordinal relation of described at least two binding member carriers;
Sub-frame of uplink with described uplink frame position correspondence is a start frame, chooses sub-frame of uplink as the binding subframe from each binding member carriers successively according to described ordinal relation, and the total quantity of the binding subframe of choosing is consistent with the described number of waiting to bind subframe.
23. system as claimed in claim 21 is characterized in that,
Described base station also is used for: to the response message of described terminal transmission to described data block;
Described terminal also is used for: obtain described base station from described dispatch and send the member carrier of described response message and the position of subframe, and the described subframe from described member carrier receives described response message; If described response message is a wrong responses NACK message, then determine re-transmission mode to described data block, utilize described at least two binding up-link carriers that described data block is retransmitted according to this re-transmission mode.
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