CN101932027B - Multiple carrier dispatching method and system - Google Patents
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Abstract
The invention provides a multiple carrier dispatching method which comprises the following steps: selecting configuration of one or multiple component carriers, and starting transmission time interval (TTI) beam concentration; and utilizing the TTI beam concentration to carry out transmission on the component carriers the TTI beam concentration of which is configured to be started. The invention also provides a multiple carrier dispatching system. The method and the system of the invention realize transmission by utilizing the TTI beam concentration in the dynamic and semi-persistent dispatching process of the multiple carrier system.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of multiple carrier dispatching method and system.
Background technology
3G (Third Generation) Moblie Long Term Evolution (Long Term Evolution, referred to as LTE) " universal land radio access web (the Evolved Universal Terrestrial Radio AccessNetwork of evolution of system, referred to as E-UTRAN, formed by base station eNB, therefore also can be called base station eNB) " wave point media access control (Media Access Control, referred to as MAC) protocol layer, there is scheduling/processed (Scheduling/Priority handling) functional entity, wherein, scheduling feature is supported dynamic dispatching (Dynamic scheduling) and semi-persistent scheduling (Semi-persistentScheduling, or be called semi-persistent scheduling, be called for short SPS).
Dynamic dispatching (Dynamic Scheduling) refers to, E-UTRAN can pass through Physical Downlink Control Channel (Physical Downlink Control Channel, referred to as PDCCH) on Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell Radio Network Temporary Identifier, referred to as C-RNTI) at each Transmission Time Interval (Transmit Time Interval, referred to as TTI, corresponding to a subframe (subframe)) to (the descending distribution: DL assignment of subscriber equipment (UE) dynamic assignment resource, or uplink authorization: UL grant) receive/send data for UE at descending/Uplink Shared Channel, resource comprises Physical Resource Block (Physical Resource Block, referred to as PRB) and Modulation and Coding Scheme (Modulation and Coding Scheme, referred to as MCS) etc.The head of UE mixed automatic retransfer request (Hybrid ARQ, referred to as HARQ) passes and HARQ re-transmission all can be used dynamic dispatching.
Semi-persistent scheduling (Semi-persistent Scheduling:SPS) refers to, E-UTRAN can receive/send data for UE distributes semipersistent resource for UE by the semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI on PDCCH (Semi-PersistentScheduling C-RNTI:SPS C-RNTI), and resource comprises Physical Resource Block PRB, Modulation and Coding Scheme MCS etc.In semi-persistent scheduling, the first biography of the HARQ of UE used semipersistent resource, and HARQ retransmits the resource that uses dynamic dispatching.Semipersistent resource repeated to occur according to the configured cycle, be configured with the subframe (Subframe) of semipersistent resource at UE, if UE does not monitor its C-RNTI on PDCCH, receive/send according to semipersistent resource in corresponding subframe.Be configured with the subframe of semipersistent resource at UE, if UE monitors its C-RNTI on PDCCH, use the dynamic resource of PDCCH instruction to substitute (Override) semipersistent resource in corresponding subframe.
Typically, semi-persistent scheduling is applied to VoIP business, for the semipersistent resource of its distribution is taking 20ms as the cycle.E-UTRAN is UE configuration semi-persistent scheduling parameter by Radio Resource control (Radio Resource Control, referred to as RRC) signaling, as parameters such as semi-persistent scheduling cycles.E-UTRAN is that UE activates semipersistent resource by PDCCH.In order to reduce the complexity of semi-persistent scheduling, semipersistent resource is distributed to whole UE, instead of distributes to certain concrete business.
At cell edge, uplink budget is low, for increasing reliability, reduce delay, improving the objects such as up covering, can use transmission time interval (tti) bundle (TTI bundling:TTI boundling) scheme in LTE system.TTI boundling uses the different redundancy versions (Redundancy Version, referred to as RV) of several continuous subframe transmission blocks of transmission (TB:Transport Block).HARQ entity is that same HARQ process is called in each transmission of TTI boundling.The HARQ of TTI boundling inside retransmits as non-self-adapting retransmits, and does not need to wait for the front feedback sending for 1 time, and HARQ feedback is for last 1 subframe (no matter in this subframe, whether actual transmission having occurred) of TTI boundling.The re-transmission of whole TTI boundling is also TTI boundling.TTI bunching scheme can carry out On/Off (being for example configured to TRUE or FALSE) for UE as RRC signaling by high-level signaling.In LTE, configuration TTI boundling cell (ttiBundling) is included in the main configuration of media access control (MAC-MainConfig) cell, MAC-MainConfig cell is further included in RRC cell Radio Resource specialized configuration RadioResourceConfigDedicated, RadioResourceConfigDedicated cell is further included in Radio Resource connection and controls in foundation (RRCConnectionSetup) or Radio Resource connection control reconstruction (RRCConnectionReestablishment) or wireless resource control connection reconfiguration (RRCConnectionReconfiguration) signaling.After TTI boundling is opened, relevant upstream data sends and uses TTI bunching scheme.The number of the continuous subframes that TTI boundling uses can be fixed, or by RRC signal deployment, in LTE system, fixed configurations is 4 subframes.Use after TTI bunching scheme, HARQ RTT (Loop Round Trip Time: Round Trip Time) is 2 times while not using TTI bunching scheme, and effectively HARQ process number is 1/2nd while not using TTI bunching scheme.
TTI bunching scheme is applicable to FDD (Frequency divided duplex) and two kinds of patterns of TDD (Time divided duplex).For fdd mode, the ACK/NACK feedback of TTI boundling is positioned at the 4th subframe (LastBundled Subframe+4) after last subframe of TTI boundling opportunity, and the retransmission operation of TTI boundling occurs in the subframe of 2 times of HARQ RTT positions after first subframe of TTI boundling.Under fdd mode, the principle schematic of TTI bunching scheme as shown in Figure 1, HARQ process 0 is used 4 continuous TTI to send redundancy versions 0～3 (RV=0 of transmission block, RV=2, RV=3, RV=1), the ACK/NACK of TTI boundling feeds back in the position of HARQ process 7 virgin's frames, and the re-transmission of TTI boundling is in the position of 2 HARQ RTT.Under tdd mode, the HARQ of TTI boundling feedback is relevant with concrete HARQ process configuration relation with the timing relationship that HARQ retransmits, but general principle and fdd mode are similar, and its HARQ feedback is also last subframe based on TTI boundling.
Up, dynamic dispatching and semi-persistent scheduling all can use TTI bunching scheme.In dynamic dispatching, 1 uplink authorization (UL grant) Resources allocation is carried out in the transmission that E-UTRAN is each TTI boundling by PDCCH; In semi-persistent scheduling, E-UTRAN is that TTI boundling carries out uplink authorization Resources allocation 1 time by PDCCH, and UE preserves this resource for the after this transmission of each TTI boundling, until semipersistent resource is released or TTI boundling is closed.
In order to meet the demand of growing large bandwidth high-speed mobile access, third generation partnership project (Third Generation Partnership Projects, be called for short 3GPP) release senior Long Term Evolution (Long-Term Evolution advance, be called for short LTE-Advanced) standard.LTE-Advanced adopts series of new techniques to expand frequency domain, spatial domain on LTE basis, improves the availability of frequency spectrum, increases the objects such as power system capacity to reach.Wherein carrier aggregation technology can the two or more component carriers of polymerization (Component Carrier) to support wider frequency band, for example, arrive 100MHz and spectrum aggregating.UE can receive simultaneously/send data on one or more component carriers, can be configured in the different numbers of descending/up gathering and have the component carrier of different bandwidth.The corresponding HARQ entity of each component carrier and transmission channel.On each component carrier, there is respectively an independent PDCCH to indicate the resource on resource distribution or other component carrier on this component carrier to distribute, on PDCCH, have 0～3bit instruction component carrier identification information.
In LTE-Advanced system carrier aggregation technology, also there is no the solution of TTI boundling at present.Each component carrier may have different up coverings, and the data reception/transmission on it also can be distinguished independent scheduling, thereby for using TTI boundling need to propose new scheme in dynamic dispatching and semi-persistent scheduling.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of multiple carrier dispatching method and system, realizes and use TTI boundling in LTE-Advanced system carrier aggregation technology.
In order to address the above problem, the invention provides a kind of multiple carrier dispatching method, select one or more component carriers to configure and open transmission time interval (tti) bundle, on the component carrier that is configured to open at transmission time interval (tti) bundle, use transmission time interval (tti) bundle to transmit.
Further, said method also can have following characteristics, selects component carrier to configure and open transmission time interval (tti) bundle by one or more radio resource control signalings, comprises component carrier identification information and opening information in described radio resource control signaling.
Further, said method also can have following characteristics, and described radio resource control signaling is that Radio Resource connects control foundation or Radio Resource connection control is rebuild or wireless resource control connection reconfiguration signaling; Described component carrier identification information is included in the cell with the main configuration cell of media access control peer; Or be included in the main configuration cell of media access control, or be included in transmission time interval (tti) bundle cell.
Further, said method also can have following characteristics, selects as follows one or more component carriers to configure and open transmission time interval (tti) bundle: select according to overload instruction and/or the type of service of the uplink signal-channel quality of component carrier, abutting subdistrict.
Further, said method also can have following characteristics, on the component carrier that is configured to open at transmission time interval (tti) bundle, use as follows transmission time interval (tti) bundle to transmit: transmission time interval (tti) bundle uses the different redundancy versions of a transmission block of several continuous subframes transmission, mixed automatic retransfer request entity is that same hybrid automatic repeat request process is called in each transmission of transmission time interval (tti) bundle, the mixed automatic retransfer request retransmission of transmission time interval (tti) bundle inside is that non-self-adapting retransmits, do not need the feedback once sending before waiting for, mixed automatic retransfer request feedback is for last subframe of transmission time interval (tti) bundle, the re-transmission of whole transmission time interval (tti) bundle is transmission time interval (tti) bundle.
Further, said method also can have following characteristics, and it is identical or different that transmission time interval (tti) bundle is configured to the number of continuous subframes that the transmission time interval (tti) bundle of each component carrier of opening uses.
Further, said method also can have following characteristics, on the described component carrier that is configured to open at transmission time interval (tti) bundle, using transmission time interval (tti) bundle to transmit comprises: on the component carrier that is configured to open at transmission time interval (tti) bundle, in dynamic dispatching and/or semi-persistent scheduling, use transmission time interval (tti) bundle to transmit, wherein, in dynamic dispatching, subscriber equipment receives the subframe at the indicated uplink place of the 1st Physical Downlink Control Channel uplink authorization that is designated as initial transmission, bring into use transmission time interval (tti) bundle to transmit, in semi-persistent scheduling, subscriber equipment, in the subframe at the up semipersistent resource place of the 1st generation, brings into use transmission time interval (tti) bundle to transmit.
The present invention also provides a kind of multi-carrier scheduling system, comprising:
Configuration module, for selecting one or more component carriers to configure and open transmission time interval (tti) bundle;
Transport module, for using transmission time interval (tti) bundle to transmit on the component carrier that is configured at transmission time interval (tti) bundle open.
Further, said system also can have following characteristics, described configuration module, for selecting component carrier to configure and open transmission time interval (tti) bundle by one or more radio resource control signalings, comprises component carrier identification information and opening information in described radio resource control signaling.
Further, said system also can have following characteristics, described configuration module, selects one or more component carriers to configure and open transmission time interval (tti) bundle for overload instruction and/or type of service according to the uplink signal-channel quality of component carrier, abutting subdistrict.
Further, said system also can have following characteristics, described transport module, for the component carrier that is configured at transmission time interval (tti) bundle open, in dynamic dispatching and/or semi-persistent scheduling, use transmission time interval (tti) bundle to transmit, wherein, in dynamic dispatching, receive the subframe at the indicated uplink place of the 1st Physical Downlink Control Channel uplink authorization that is designated as initial transmission, bring into use transmission time interval (tti) bundle to transmit; In semi-persistent scheduling, in the subframe at the up semipersistent resource place of the 1st generation, bring into use transmission time interval (tti) bundle to transmit.
The present invention proposes the TTI bunching scheme in LTE-Advanced system carrier aggregation, the method has flexible configuration, the advantage such as compatible good.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the principle schematic of TTI bunching scheme under fdd mode;
Fig. 2 shows according to the schematic diagram of the embodiment of the present invention 1;
Fig. 3 shows according to the schematic diagram of the embodiment of the present invention 2;
Fig. 4 shows according to the schematic diagram of the embodiment of the present invention 3;
Fig. 5 shows multiple carrier dispatching method flow chart of the present invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Main thought of the present invention is that selection component carrier configures and open TTI boundling, opens on the component carrier of TTI boundling in configuration, uses TTI boundling to transmit in dynamic dispatching and/or semi-persistent scheduling.
The method that the invention provides carrier wave specific (Component carrier specific) in a kind of carrier aggregation technology, comprising:
Select component carrier to configure and open TTI boundling; On the component carrier that is configured to open at TTI boundling, use TTI boundling to transmit.
Wherein, described selection component carrier configuration TTI boundling refers to and selects one or more component carrier configurations TTI boundling.
Wherein, select the factor of component carrier configuration TTI boundling institute foundation to include but not limited to one or more in following factor: the uplink signal-channel quality of described component carrier, the instruction of the overload of abutting subdistrict (OI:Overload Indicator) and type of service.
Wherein, open at the same time or separately the TTI boundling on each component carrier, specifically refer to, configure simultaneously and open the TTI boundling on one or more component carriers by 1 RRC signaling, or, configure respectively and open the boundling on multiple component carriers by multiple RRC signalings.
Wherein, select component carrier configuration TTI boundling by one or more RRC signalings, in RRC signaling, comprise component carrier identification information and opening information for TTI boundling.Described RRC signaling is that Radio Resource connects control foundation (RRCConnectionSetup) or (RRCConnectionReestablishment) or wireless resource control connection reconfiguration (RRCConnectionReconfiguration) signaling are rebuild in Radio Resource connection control; Described component carrier identification information can be included in the cell with the main configuration of media access control (MAC-MainConfig) cell peer; Or be included in the main configuration of media access control (MAC-MainConfig) cell, or be included in TTI boundling cell (ttiBundling); Between the identification information of component carrier and TTI boundling cell, there is corresponding relation, can represent which component carrier has configured TTI boundling.TTI boundling only carries out on the component carrier that has configured TTI boundling, and on other component carrier, dynamic dispatching and semi-persistent scheduling do not use TTI boundling.
On each component carrier, in the time that TTI boundling is configured to open (TRUE), TTI boundling on this component carrier in dynamic dispatching and semi-persistent scheduling transmission principle follow with LTE system in identical principle: TTI boundling uses the different redundancy versions of a transmission block of several continuous subframes transmission.HARQ entity is that same HARQ process is called in each transmission of TTI boundling.The HARQ of TTI boundling inside retransmits as non-self-adapting retransmits, and does not need to wait for the front feedback sending for 1 time, and HARQ feedback is for last 1 subframe (no matter in this subframe, whether actual transmission having occurred) of TTI boundling.The re-transmission of whole TTI boundling is also TTI boundling etc.
Wherein, on each component carrier, in the time that TTI boundling is configured to open (TRUE), the uplink on this component carrier is all used TTI boundling.
On each component carrier, in the time that TTI boundling is configured to open (TRUE), the number of TTI boundling continuous subframes is same fixed value, as 4 TTI; Or the TTI boundling of different component carriers configures the number of different continuous subframes.
In the time that the number of continuous subframes is 4, HARQ RTT is 2 times before TTI boundling is opened, and effectively the number of HARQ process is 1/2nd of the front HARQ process number of TTI boundling unlatching.In the time that the number of continuous subframes is not 4, the number of HARQ RTT and effective HARQ process is relevant to the number of configured continuous subframes, or HARQ RTT is 2 times before TTI boundling is opened, effectively the number of HARQ process is 1/2nd of the front HARQ process number of TTI boundling unlatching.
Wherein, using TTI boundling to transmit comprises: be configured to open at TTI boundling on the component carrier of (TRUE), in dynamic dispatching and/or semi-persistent scheduling, use TTI boundling to transmit, wherein, in the time of dynamic dispatching, UE receives the subframe at the indicated uplink place of the 1st PDCCH uplink authorization that is designated as initial transmission, brings into use TTI boundling to transmit; In the time of semi-persistent scheduling, UE, in the subframe at the up semipersistent resource place of the 1st generation, brings into use TTI boundling to transmit.
Each TTI boundling is configured to the component carrier of opening, network side uses the PDCCH of this component carrier or the PDCCH of other component carriers to carry out uplink authorization Resources allocation for this component carrier.I.e. in the time that TTI boundling is configured to open (TRUE), the PDCCH on PDCCH or other component carrier of UE from this component carrier receives the uplink authorization instruction on this component carrier.
Wherein, also close at the same time or separately the TTI boundling on each component carrier, be specially, close the TTI boundling on each component carrier by one or more RRC signalings.
Fig. 2 shows according to the schematic diagram of the embodiment of the present invention 1, is described as follows:
Configured TTI boundling at component carrier 1 and component carrier 2 simultaneously; The continuous subframes number of the TTI boundling on each component carrier is 4; TTI boundling is opened (TRUE) at two component carriers simultaneously; The uplink that simultaneously receives the instruction of PDCCH uplink authorization on these two component carriers is positioned at identical subframe.
Fig. 3 shows according to the schematic diagram of the embodiment of the present invention 2, is described as follows:
Configure respectively TTI boundling at component carrier 1 and component carrier 2; The continuous subframes number of TTI boundling is 4; TTI boundling is not to open (TRUE) at these two component carriers simultaneously; The uplink that receives respectively the instruction of PDCCH uplink authorization on these two component carriers is positioned at different subframes.
Fig. 4 shows according to the schematic diagram of the embodiment of the present invention 3, is described as follows:
Configure respectively TTI boundling at component carrier 1 and component carrier 2; On component carrier 1, the continuous subframes number of TTI boundling is 4, and on component carrier 2, the continuous subframes number of TTI boundling is 3; TTI boundling is not to open (TRUE) at these two component carriers simultaneously; The uplink that receives respectively the instruction of PDCCH uplink authorization on these two component carriers is positioned at different subframes.
In another embodiment of the present invention, configure respectively TTI boundling at component carrier 1 and component carrier 2; On component carrier 1, the continuous subframes number of TTI boundling is 4, and on component carrier 2, the continuous subframes number of TTI boundling is 3; TTI boundling is opened (TRUE) at these two component carriers simultaneously; The uplink that receives the instruction of PDCCH uplink authorization on these two component carriers is positioned at identical or different subframe.
Fig. 5 shows multiple carrier dispatching method flow chart of the present invention, comprises the following steps:
Step 510: select one or more component carriers to configure and open TTI boundling;
Specifically can be, network side selects one or more component carriers to configure TTI boundling by 1 RRC signaling simultaneously, or, select multiple component carriers to configure respectively TTI boundling by multiple RRC signalings, wherein in RRC signaling, comprise component carrier identification information and TTI boundling opening information (TRUE);
Described RRC signaling is that Radio Resource connects control foundation (RRCConnectionSetup) or (RRCConnectionReestablishment) or wireless resource control connection reconfiguration (RRCConnectionReconfiguration) signaling are rebuild in Radio Resource connection control.
Described component carrier identification information is included in the cell with the main configuration of media access control (MAC-MainConfig) cell peer; Or be included in the main configuration of media access control (MAC-MainConfig) cell, or be included in TTI boundling cell (ttiBundling); Between component carrier identification information and TTI boundling cell, there is corresponding relation, can represent which component carrier has configured TTI boundling.
Step 520: having configured on the component carrier of TTI boundling, in dynamic dispatching, UE receives the subframe at the indicated uplink place of the 1st PDCCH uplink authorization that is designated as initial transmission, brings into use TTI boundling to transmit; In semi-persistent scheduling, UE, in the subframe at the up semipersistent resource place of the 1st generation, brings into use TTI boundling to transmit.
Step 530:UE receives one or more RRC signalings and closes TTI boundling, wherein, comprises component carrier identification information and TTI boundling closing information in RRC signaling, and UE stops using TTI boundling to transmit.
The present invention also provides a kind of multi-carrier scheduling system, comprising:
Configuration module, for selecting one or more component carriers to configure and open transmission time interval (tti) bundle; Further, described configuration module, for selecting component carrier to configure and open transmission time interval (tti) bundle by one or more radio resource control signalings, comprises component carrier identification information and opening information in described radio resource control signaling.Further, described configuration module, selects one or more component carriers to configure and open transmission time interval (tti) bundle for overload instruction and/or type of service according to the uplink signal-channel quality of component carrier, abutting subdistrict.
Transport module, for using transmission time interval (tti) bundle to transmit on the component carrier that is configured at transmission time interval (tti) bundle open.Further, described transport module, for the component carrier that is configured at transmission time interval (tti) bundle open, in dynamic dispatching, receive the subframe at the indicated uplink place of the 1st Physical Downlink Control Channel uplink authorization that is designated as initial transmission, bring into use transmission time interval (tti) bundle to transmit; In semi-persistent scheduling, in the subframe at the up semipersistent resource place of the 1st generation, bring into use transmission time interval (tti) bundle to transmit.
As can be seen from the above description, the present invention proposes the TTI bunching scheme in LTE-Advanced system carrier aggregation, the method has flexible configuration, the advantage such as compatible good.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a multiple carrier dispatching method, is characterized in that, selects one or more component carriers to configure and open transmission time interval (tti) bundle, on the component carrier that is configured to open, uses transmission time interval (tti) bundle to transmit at transmission time interval (tti) bundle, on the component carrier that is configured to open at transmission time interval (tti) bundle, use as follows transmission time interval (tti) bundle to transmit: transmission time interval (tti) bundle uses the different redundancy versions of a transmission block of several continuous subframes transmission, mixed automatic retransfer request entity is that same hybrid automatic repeat request process is called in each transmission of transmission time interval (tti) bundle, the mixed automatic retransfer request retransmission of transmission time interval (tti) bundle inside is that non-self-adapting retransmits, do not need the feedback once sending before waiting for, mixed automatic retransfer request feedback is for last subframe of transmission time interval (tti) bundle, the re-transmission of whole transmission time interval (tti) bundle is transmission time interval (tti) bundle.
2. the method for claim 1, is characterized in that, selects component carrier to configure and open transmission time interval (tti) bundle by one or more radio resource control signalings, comprises component carrier identification information and opening information in described radio resource control signaling.
3. method as claimed in claim 2, is characterized in that, described radio resource control signaling is that Radio Resource connects control foundation or Radio Resource connection control is rebuild or wireless resource control connection reconfiguration signaling; Described component carrier identification information is included in the cell with the main configuration cell of media access control peer; Or be included in the main configuration cell of media access control, or be included in transmission time interval (tti) bundle cell.
4. the method for claim 1, it is characterized in that, select as follows one or more component carriers to configure and open transmission time interval (tti) bundle: select according to overload instruction and/or the type of service of the uplink signal-channel quality of component carrier, abutting subdistrict.
5. method as claimed in claim 4, is characterized in that, it is identical or different that transmission time interval (tti) bundle is configured to the number of continuous subframes that the transmission time interval (tti) bundle of each component carrier of opening uses.
6. the method for claim 1, it is characterized in that, on the described component carrier that is configured to open at transmission time interval (tti) bundle, using transmission time interval (tti) bundle to transmit comprises: on the component carrier that is configured to open at transmission time interval (tti) bundle, in dynamic dispatching and/or semi-persistent scheduling, use transmission time interval (tti) bundle to transmit, wherein, in dynamic dispatching, subscriber equipment receives the subframe at the indicated uplink place of the 1st Physical Downlink Control Channel uplink authorization that is designated as initial transmission, bring into use transmission time interval (tti) bundle to transmit, in semi-persistent scheduling, subscriber equipment, in the subframe at the up semipersistent resource place of the 1st generation, brings into use transmission time interval (tti) bundle to transmit.
7. a multi-carrier scheduling system, is characterized in that, comprising:
Configuration module, for selecting one or more component carriers to configure and open transmission time interval (tti) bundle;
Transport module, for using transmission time interval (tti) bundle to transmit on the component carrier that is configured at transmission time interval (tti) bundle open;
Described transport module, for using transmission time interval (tti) bundle to transmit on the component carrier that is configured at transmission time interval (tti) bundle open, is to use as follows transmission time interval (tti) bundle to transmit:
Transmission time interval (tti) bundle uses the different redundancy versions of a transmission block of several continuous subframes transmission, mixed automatic retransfer request entity is that same hybrid automatic repeat request process is called in each transmission of transmission time interval (tti) bundle, the mixed automatic retransfer request retransmission of transmission time interval (tti) bundle inside is that non-self-adapting retransmits, do not need the feedback once sending before waiting for, mixed automatic retransfer request feedback is for last subframe of transmission time interval (tti) bundle, and the re-transmission of whole transmission time interval (tti) bundle is transmission time interval (tti) bundle.
8. system as claimed in claim 7, it is characterized in that, described configuration module, for selecting component carrier to configure and open transmission time interval (tti) bundle by one or more radio resource control signalings, comprises component carrier identification information and opening information in described radio resource control signaling.
9. system as claimed in claim 7, it is characterized in that, described configuration module, selects one or more component carriers to configure and open transmission time interval (tti) bundle for overload instruction and/or type of service according to the uplink signal-channel quality of component carrier, abutting subdistrict.
10. system as claimed in claim 7, it is characterized in that, described transport module, for the component carrier that is configured at transmission time interval (tti) bundle open, in dynamic dispatching and/or semi-persistent scheduling, use transmission time interval (tti) bundle to transmit, wherein, in dynamic dispatching, receive the subframe at the indicated uplink place of the 1st Physical Downlink Control Channel uplink authorization that is designated as initial transmission, bring into use transmission time interval (tti) bundle to transmit; In semi-persistent scheduling, in the subframe at the up semipersistent resource place of the 1st generation, bring into use transmission time interval (tti) bundle to transmit.
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| CN103378936A (en) * | 2012-04-28 | 2013-10-30 | 中兴通讯股份有限公司 | Data transmission method and device |
| DK2847911T3 (en) * | 2012-05-10 | 2016-04-18 | Ericsson Telefon Ab L M | A method and apparatus for Hybrid Automatic Repeat Request signaling |
| US9621310B2 (en) * | 2013-12-23 | 2017-04-11 | Apple Inc. | TTI bundling for downlink communication |
| CN104811268A (en) * | 2014-01-29 | 2015-07-29 | 上海贝尔股份有限公司 | Method and device for packet retransmission |
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