CN102045841A - Method, device and communication system for scheduling resources - Google Patents
Method, device and communication system for scheduling resources Download PDFInfo
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- CN102045841A CN102045841A CN2009101783154A CN200910178315A CN102045841A CN 102045841 A CN102045841 A CN 102045841A CN 2009101783154 A CN2009101783154 A CN 2009101783154A CN 200910178315 A CN200910178315 A CN 200910178315A CN 102045841 A CN102045841 A CN 102045841A
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Abstract
The embodiment of the invention provides a method, device and communication system for scheduling resources. The method comprises the following steps of: scheduling one of a retransmission resource and a persistent resource of conflicting moments on a first carrier onto the conflicting moments on the second carrier; and informing a scheduling result of the retransmission resource and the persistent resource to user equipment. In the embodiment of the invention, the transmission delay of an air interface and the packet loss rate are reduced, and the user experience effect, the capacity and the system performance are improved.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly resource regulating method, device and communication system.
Background technology
VoIP (Voice over IP, IP phone) technology is a kind of very important business that LTE (Long Term Evolved, Long Term Evolution) system need support, voip user's number that its maximum can be supported is one of important indicator of LTE systematic function.The VoIP business features is: in talking state, every 20ms produces a VoIP packet, and service load is about 40 bytes; In silent status, every 160ms produces a SID (Silent Indicator, the indication of mourning in silence) packet, and service load is about 15 bytes.Fig. 1 is the VoIP business model schematic diagram under AMR (Adaptive Multiple Rate, the adaptive multi-rate) encoding scheme of prior art.
Because the grouping of VoIP business size and the regularity that reaches the time interval in the LTE system, adopt SPS (Semi-Persistent Scheduling, semi-continuous scheduling) mode to save the expense of control signaling to the VoIP business.In this dispatching algorithm, in case the voip user enters Talk spurt (audio session peak) state, this user will obtain fixing resource allocation in certain time interval, it comprises fixing RB (resource block, Resource Block) quantity, RB position and MCS (Modulation and Coding Scheme, modulation coding mode).And when pre-configured resource and MCS can not satisfy actual needs, use dynamic dispatching control signaling to change the transfer resource of VoIP business temporarily or forever.Wherein, for the LTE system, UP (Uplink, up) dynamic dispatching control signaling is UL Grant (uplink authorization).See also Fig. 2, Fig. 2 is the concrete schematic diagram of the up semi-continuous scheduling SPS algorithm of prior art, as shown in Figure 2, ACK represents correctly to reply (Acknowledge), be used for the base station and receive correctly to UE (User Equipment, subscriber equipment) feedback, NAK represents wrong responses (Negative Acknowledge), be used to represent that the base station receives error data packets, indication UE resends.
In addition, for up, what prior art adopted is synchronous HARQ (Hybrid Adaptive Repeat Quest mixes automatically retransmitting), that is to say that the re-transmission of HARQ must be carried out in the fixing moment, at LTE FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) in the system, HARQ RTT (Round Trip Time, round-trip delay) is 8ms, i.e. 8 TTI (Transmission Time Interval, Transmission Time Interval).
Under the situation of uplink, eNB (evolved Node B, the base station of evolution) need be every fixing interval in the LTE system, and for example 20ms is UE distribution SPS persistent resources; ENB also need be every another fixing interval simultaneously, for example be 8ms, for distributing SPS, UE retransmits resource, when distributing the SPS persistent resources and distribute SPS re-transmission resource to occur in synchronization (for example 40ms), just produced conflict, eNB can't not only distribute SPS to retransmit resource but also distributes the SPS persistent resources at synchronization.
Prior art solutions is, when the SPS persistent resources is distributed and SPS re-transmission resource allocation when clashing, distribute SPS to retransmit resource in the moment that this conflict takes place, the several TTI subsequently distribute the SPS persistent resources, or only distribute the SPS persistent resources in the moment that this conflict takes place.
The inventor finds that prior art has the following disadvantages at least in realizing process of the present invention: the method for prior art has increased propagation delay time, influences user experience, has increased packet loss, has reduced systematic function.
Summary of the invention
The embodiment of the invention provides a kind of resource regulating method, device and communication system.
On the one hand, the embodiment of the invention provides a kind of resource regulating method, and described method comprises: with conflict re-transmission resource and one of them of persistent resources describedly engraving when conflicting mutually of being dispatched to second carrier wave constantly mutually on the first carrier; Notify described subscriber equipment with the scheduling result of described re-transmission resource and described persistent resources.
On the other hand, the embodiment of the invention provides a kind of resource scheduling device, described device comprises: the scheduling of resource unit is used for conflict re-transmission resource and one of them of persistent resources describedly engraving when conflicting mutually of being dispatched to second carrier wave constantly mutually on the first carrier; The scheduling indicating member will be notified described subscriber equipment to the scheduling result of described re-transmission resource and described persistent resources.
Another aspect, the embodiment of the invention also provides a kind of communication system, described communication system comprises: resource scheduling device is used for conflict re-transmission resource and one of them of persistent resources describedly engraving when conflicting mutually of being dispatched to second carrier wave constantly mutually on the first carrier; Notify described subscriber equipment with the scheduling result of described re-transmission resource and described persistent resources.
A kind of resource regulating method that the embodiment of the invention provides, device and communication system, provide a kind of and under multicarrier, solve to have retransmitted resource and persistent resources is distributed afoul technical scheme, by under the scene of multicarrier, when the time that at a certain carrier wave is user equipment allocation re-transmission resource is identical with the time of distributing persistent resources, on other carrier wave should conflict persistent resources constantly take place or retransmit resource for this user equipment allocation, so that subscriber equipment can carry out corresponding transfer of data simultaneously according to the respective resources of the synchronization that is distributed on different carrier waves.By technique scheme, the embodiment of the invention has reduced the transmission delay of eating dishes without rice or wine, has promoted the user experience effect, has reduced packet loss, has improved capacity, has improved systematic function.
Description of drawings
Fig. 1 is the VoIP business model schematic diagram under the AMR encoding scheme of prior art;
Fig. 2 is the concrete schematic diagram of the up semi-continuous scheduling SPS algorithm of prior art;
Fig. 3 is the structural representation of the HARQ under the multicarrier of the embodiment of the invention;
Fig. 4 a is the schematic diagram that the non-SPS of prior art retransmits resource and SPS persistent resources distribution conflict;
Fig. 4 b is the SPS re-transmission resource of prior art and the schematic diagram that the SPS persistent resources clashes;
The overall flow figure of a kind of resource regulating method that Fig. 5 provides for the embodiment of the invention;
Fig. 6 is the refinement flow chart according to the method for the embodiment of the invention;
Fig. 7 is a scheduling of resource schematic diagram in the resource regulating method shown in Figure 6;
Fig. 8 is the another kind of refinement flow chart according to the method for the embodiment of the invention;
Fig. 9 is a scheduling of resource schematic diagram in the resource regulating method shown in Figure 8;
The flow chart of a kind of resource regulating method that Figure 10 provides for the embodiment of the invention;
Figure 11 is a scheduling of resource schematic diagram in the resource regulating method shown in Figure 10;
The flow chart of a kind of resource regulating method that Figure 12 provides for the embodiment of the invention;
Figure 13 is a scheduling of resource schematic diagram in the resource regulating method shown in Figure 12;
Figure 14 is an another kind of scheduling of resource schematic diagram in the resource regulating method shown in Figure 12;
Figure 15 is the allomeric function block diagram of the resource scheduling device of the embodiment of the invention;
Figure 16 is the detailed structure functional block diagram of the scheduling of resource unit of the embodiment of the invention;
Figure 17 is the flow chart of the data transmission method for uplink of the embodiment of the invention;
Figure 18 is the functional block diagram of the data sending device of the embodiment of the invention;
Figure 19 is the functional block diagram of the resource scheduling system of the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The inventor finds in realizing process of the present invention, in the prior art, on the one hand, character according to the SPS scheduling, in case the voip user enters Talk spurt state, eNB can be spaced apart UE according to regular time and distribute the first biography TB (Transmission Block, transmission block) of persistent resources with the transmission activated state; On the other hand, because up employing is synchronous HARQ, in case this also means the not first biography TB of the correct UE of reception of eNB, eNB will retransmit TB with transmission for UE retransmits resource in the distribution of the moment of next RTT.If both of these case occurs in synchronization, can't dispatch two TB simultaneously among the LTE, therefore the TB that bumps must abandon or postpone scheduling.
Based on above problem, the embodiment of the invention provides a kind of resource regulating method, solution re-transmission resource allocation and SPS persistent resources are distributed afoul problem in the system that adopts the multicarrier framework, the method that the embodiment of the invention provides for example can be applied in the LTE-A systems such as (LTE-Advanced, enhancement mode Long Term Evolutions).Consult Fig. 3, be the structural representation of the HARQ under the multicarrier of the embodiment of the invention.In embodiments of the present invention, all corresponding HARQ entity of each carrier wave, and also the HARQ entity of each carrier wave is separate.In embodiments of the present invention, in order to satisfy the more demand of peak value speed and cell throughout of enhanced services, the LTE-A system proposes to adopt carrier aggregation technology, supports wideer bandwidth, thereby reaches higher peak rate.Because the LTE-A system of the embodiment of the invention supports multi-carrier scheduling, that is to say at same TTI and can dispatch a plurality of TB that transmit on a plurality of carrier waves, so the embodiment of the invention provides a kind of solution to retransmit resource allocation and the SPS persistent resources is distributed afoul method.
In the technical scheme that the embodiment of the invention provides, owing to adopt the multi-carrier scheduling mode, thereby need to notify UE by control signaling (for example: PDCCH, RRC signaling) indication.The embodiment of the invention has proposed a kind of new control signaling and has notified UE, so that indicating according to scheduling of resource, UE on a plurality of carrier waves, transmits, for example comprise: eNB adds specific sign in sending to the control signaling of UE, with indication the scheduling of resource that clashes is sent to the another one carrier wave.While eNB should control signaling and also send on the another one carrier wave, UE monitors the control signaling of each carrier wave, after receiving this control signaling, know the TTI that eNB is clashing by the sign that comprises in this control signaling, adopting the another one carrier wave is that UE has distributed resource, therefore, UE sends corresponding data according to the respective resources of being distributed on this carrier wave.
In the LTE of prior art system, descending (Downlink) L1 (physical layer)/L2 (data link layer) control signaling comprises: be used for the schedule information that downlink data sends; Scheduling authorization (UL Grant) information that is used for up transmission; The embodiment of the invention is scheduling authorization (UL Grant) information that user uplink sends, that is to say in the form of descending control signaling, DCI (Downlink Control Information, Downlink Control Information) is 0 PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel).Wherein use different C-RNTI (Cell Radio Network Temporary Identifier, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI) PDCCH of scrambling can indicate different control signalings, indicate the transmission of SPS as the PDCCH of SPSC-RNTI scrambling, the PDCCH of RA RNTI (random access radio network temporary mark, Random Access Radio Network Temporary Identifier) scrambling then indicate one insert at random in the control signaling of Msg2.
Before the various embodiments of describing the embodiment of the invention, describe two kinds of application scenarioss that the embodiment of the invention was suitable for earlier, but be not limited thereto.
The activated state initial transmission packet of supposing the VoIP business sends when current TTI is the integral multiple of 20ms, following two kinds of scenes then can occur:
Application scenarios one: non-SPS re-transmission resource allocation and SPS persistent resources are distributed in conflict at the same time.Fig. 4 a is that the non-SPS of prior art retransmits resource and the SPS persistent resources is distributed the schematic diagram that clashes.Shown in Fig. 4 a, suppose that eNB sends UL Grant to the UE Resources allocation constantly at 8ms, and notice UE is at the first biography TB of a non-SPS of 12ms transmission, if eNB separates mistake, then eNB can be that UE distributes the re-transmission resource at 20ms, and also is at this moment that eNB is the time that UE distributes the SPS persistent resources.Like this, shown in the sign A among Fig. 4 a, non-SPS retransmits resource and the SPS persistent resources has just caused conflict at one time.
Application scenarios two: SPS re-transmission resource allocation and SPS persistent resources are distributed in conflict at the same time.Fig. 4 b is the SPS re-transmission resource of prior art and the schematic diagram that the SPS persistent resources clashes.Shown in Fig. 4 b, suppose that eNB distributes persistent resources at 0ms to UE, at 8ms is that UE distributes primary re-transmission resource, and be that UE distribute to retransmit resource every 8ms, then eNB will distribute the 5th time re-transmission resource for this UE at 40ms, but according to the scheduling rule of SPS, eNB also can distribute persistent resources for this UE at 40ms simultaneously, so just caused the conflict of the persistent resources of the re-transmission resource of SPS and SPS, shown in the sign B among Fig. 4 b.
Below the various embodiments of the embodiment of the invention are described in detail.
The overall flow figure of a kind of resource regulating method that Fig. 5 provides for the embodiment of the invention.As shown in Figure 5, this method comprises:
S501, with conflict re-transmission resource and one of them of persistent resources describedly engraving when conflicting mutually of being dispatched to second carrier wave constantly mutually on the first carrier;
S502, notify described subscriber equipment with the scheduling result of described re-transmission resource and described persistent resources.
Alternatively, in S502, the process of described subscriber equipment will be notified, in the following mode any can be the allocation result of described re-transmission resource and described persistent resources:
(1) sends the physical downlink control channel PDCCH of general C-RNTI scrambling to described subscriber equipment, its spare bits that comprises is used in reference to be shown in and is described user equipment allocation persistent resources on described second carrier wave, to transmit the biography transmission block just that continues of described subscriber equipment, or be used in reference to and be shown on described second carrier wave for described user equipment allocation retransmits resource, to transmit the re-transmission transmission block of described subscriber equipment.
(2) send the physical downlink control channel PDCCH of semi-continuous scheduling C-RNTI scrambling to described subscriber equipment, its new data that comprises is designated as at 1 o'clock, be used in reference to be shown in and be described user equipment allocation persistent resources on described second carrier wave, to transmit the biography transmission block just that continues of described subscriber equipment, or be used in reference to and be shown on described second carrier wave for described user equipment allocation retransmits resource, to transmit the re-transmission transmission block of described subscriber equipment.
(3) send the physical downlink control channel PDCCH of semi-continuous scheduling C-RNTI scrambling to described subscriber equipment, the first field in its modulation, coding, configuration and redundancy versions territory is 1 o'clock, be used in reference to be shown in and be described user equipment allocation persistent resources on described second carrier wave, to transmit the biography transmission block just that continues of described subscriber equipment, or be used in reference to and be shown on described second carrier wave for described user equipment allocation retransmits resource, to transmit the re-transmission transmission block of described subscriber equipment.
(4) send the PDCCH of self-defining C-RNTI scrambling to described subscriber equipment, it is used in reference to be shown in and is described user equipment allocation persistent resources on described second carrier wave, to transmit the biography transmission block just that continues of described subscriber equipment, or it is used in reference to and is shown on described second carrier wave for described user equipment allocation retransmits resource, to transmit the re-transmission transmission block of described subscriber equipment.
Alternatively, in concrete the application, resource regulating method shown in Figure 5 can also comprise:
Dispose the sign of described second carrier wave, and the sign of described second carrier wave is sent to described subscriber equipment.
Further, below the resource regulating method of the embodiment of the invention will be described with further refinement for example.Need explanation the time, the example in these two practical applications all is applicable to the technical problem that exists in the application scenarios one that solves prior art and the application scenarios two.
Fig. 6 is the refinement flow chart according to the method for the embodiment of the invention.Fig. 7 is a scheduling of resource schematic diagram in the resource regulating method shown in Figure 6.Please in conjunction with consulting Fig. 6 and Fig. 7, adopt the resource regulating method shown in Figure 6 of the embodiment of the invention, when at first carrier (Carrier1), when re-transmission resource and SPS persistent resources clash, eNB sends control signaling on another one carrier wave (Carrier2), on Carrier2,, on Carrier2, send first biography TB corresponding to persistent resources with seasonal UE for UE distributes conflict persistent resources constantly mutually.Shown in the sign G among Fig. 7, when 20ms and 40ms, on some carrier waves, retransmit resource allocation and distribute with persistent resources and clash, it is the UE dynamic assignment that eNB will conflict that the persistent resources in the moment is dispatched on another carrier wave.As shown in Figure 6, this resource regulating method comprises:
S601, eNB are by Radio Resource control (Radio Resource Control, RRC) the pre-configured auxilliary carrier wave ID of the mode of signaling or standard criterion;
For example, Carrier1 is a main carrier, and Carrier2 is auxilliary carrier wave.
S602, eNB send control signaling on the pairing auxilliary carrier wave of above-mentioned auxilliary carrier wave ID, comprise the resource information (for example: resource location, MCS, RB number etc.) of outgoing data, and give this UE dynamic assignment persistent resources;
For example, eNB can be that UE sends control signaling by main carrier or auxilliary carrier wave, with will be to the scheduling advisory UE of resource.Below be that example describes with 20ms conflict situations constantly, eNB can send control signaling to UE by Carrier2 at 16ms, go up persistent resources that 20ms distributes constantly with notice UE according to Carrier2 and send to eNB and just pass TB, and go up re-transmission resource that 20ms distributes constantly according to Carrier1 and send to eNB and retransmit TB.
S603, UE transmit on main carrier and retransmit TB, the transmitting continuous TB that just passes on auxilliary carrier wave.
The PDCCH control signaling design relevant with resource regulating method shown in Figure 6 in the embodiment of the invention has following several:
1, eNB sends the PDCCH of general C-RNTI scrambling, and by vacant 1bit among the PDCCH, indicating on the another one carrier wave is that this UE dynamic assignment persistent resources is to transmit the first TB of biography that continues of this UE;
2, eNB sends the PDCCH of SPS C-RNTI scrambling, and the NDI among the PDCCH (New Data Indicator, new data indication) is set to 1, and indicating on the another one carrier wave is that this UE dynamic assignment persistent resources is to transmit the first TB of biography that continues of this UE.
Because in the PDCCH of SPS C-RNTI scrambling, if NDI is 1 then indicates this UE need send the re-transmission TB of a SPS at this TTI, send the control signaling that scheduling retransmits in the position that SPS just passes, indicate in this way SPS is just passed TB to be dispatched on the another one carrier wave.
3, eNB sends the PDCCH of SPS C-RNTI scrambling, and the first field in " Modulation and coding scheme and redundancy version (modulation, coding, configuration and redundancy versions) " territory is set to 1 among the PDCCH, and indicating on the another one carrier wave is that this UE dynamic assignment persistent resources is to transmit the biography TB just that continues of this UE.Wherein the first field in this territory is set to the 0 activation/modification that is designated as SPS.
4, eNB sends a kind of PDCCH of self-defining C-RNTI scrambling, and indicating on the another one carrier wave is that this UE dynamic assignment persistent resources is to transmit the biography TB just that continues of this UE.
Fig. 8 is the another kind of refinement flow chart according to the method for the embodiment of the invention.Fig. 9 is a scheduling of resource schematic diagram in the resource regulating method shown in Figure 8.Please in conjunction with consulting Fig. 8 and Fig. 9, adopt embodiment of the invention resource regulating method shown in Figure 8, when the persistent resources that retransmits resource and SPS clashes, eNB sends control signaling at the another one carrier wave, distribute the re-transmission resource to UE, on the another one carrier wave, send the re-transmission TB of this UE with seasonal UE.Shown in the sign H of Fig. 9, at 20ms and 40ms, the re-transmission resource allocation on the carrier wave 1 distributes to send with persistent resources and conflicts, and then eNB sends control signaling to UE, be UE distribution conflict re-transmission resource constantly on carrier wave 2, send on carrier wave 2 with seasonal UE and retransmit TB.Thereby UE can send the first biography TB corresponding to persistent resources to eNB at the moment 20ms of conflict mutually of carrier wave 1; And UE can send one corresponding to the re-transmission TB that retransmits resource to eNB at the prominent mutually 20ms constantly of carrier wave 2; Promptly at 20ms, UE has sent two TB by two carrier waves simultaneously to eNB.Similar in other prominent mutually scheduling of resource situation constantly, be exemplary illustration only more than certainly, and do not should be understood to restriction the embodiment of the invention.
As shown in Figure 8, this resource regulating method comprises:
S801, eNB are by the pre-configured auxilliary carrier wave ID of mode of radio resource control signaling (RRC signaling) or standard criterion;
S802, eNB send control signaling on the auxilliary carrier wave of above-mentioned auxilliary carrier wave ID correspondence, comprise the resource information (for example: resource location, MCS, RB number etc.) of outgoing data, and retransmit resource for this UE dynamic assignment;
S803, UE be the transmitting continuous TB that just passes on main carrier, and transmission retransmits TB on auxilliary carrier wave.
The PDCCH control signaling design relevant with resource regulating method shown in Figure 8 in the embodiment of the invention has following several:
1, eNB sends the PDCCH of general C-RNTI scrambling, and by vacant 1bit among the PDCCH, indicates on the another one carrier wave and retransmit resource to transmit the re-transmission TB of this UE for this UE distributes;
2, the PDCCH of eNB transmission SPS C-RNTI scrambling, and the NDI among the PDCCH is set to 1, indicates on the another one carrier wave and retransmits resource to transmit the re-transmission TB of this UE for this UE distributes.
Because in the PDCCH of SPS C-RNTI scrambling, if NDI is 1 then indicates this UE need send the re-transmission TB of a SPS at this TTI, send the control signaling that scheduling retransmits in the position that SPS just passes, indicate in this way SPS is retransmitted TB to be dispatched on the another one carrier wave.
3, eNB sends the PDCCH of SPS C-RNTI scrambling, and the first field in " Modulation and coding scheme and redundancy version " (modulation, coding, configuration and redundancy versions territory) territory is set to 1 among the PDCCH, indicates on the another one carrier wave and retransmits resource to transmit the re-transmission TB of this UE for this UE distributes.Wherein, the first field when this territory is set to 0, then is designated as activation/modification of SPS.
4, eNB sends a kind of PDCCH of self-defining C-RNTI scrambling, indicates on the another one carrier wave and retransmits resource to transmit the re-transmission TB of this UE for this UE distributes.
The resource regulating method of the embodiment of the invention, provide a kind of and under multicarrier, solve to have retransmitted resource and persistent resources is distributed afoul technical scheme, when adopting first carrier is that user equipment allocation retransmits resource and persistent resources when clashing, clash the time engrave, adopting second carrier wave is described user equipment allocation conflict described re-transmission resource or described persistent resources constantly, thereby can receive subscriber equipment in the data that first carrier and second carrier wave send simultaneously according to the respective resources of being distributed, solve the application scenarios one of prior art and the problem in the application scenarios two.Owing to adopted above scheme, two bags can be dispatched simultaneously in the moment that clashes in the base station, and one of them bag can not abandoned or postpone scheduling, thereby can reduce the transmission delay of eating dishes without rice or wine, improve user experience, reduce the discarded packets rate, the raising capacity improves systematic function.
The flow chart of a kind of resource regulating method that Figure 10 provides for the embodiment of the invention.As shown in figure 10, this resource regulating method idiographic flow comprises:
S1001, employing first carrier are user equipment allocation semi-continuous scheduling persistent resources, and adopting second carrier wave is that the non-semi-continuous scheduling of user equipment allocation retransmits resource;
S1002, will notify described subscriber equipment to the allocation result that described non-semi-continuous scheduling retransmits resource and described semi-continuous scheduling persistent resources.
Alternatively, described method can also comprise:
Dispose the sign of described second carrier wave by the RRC signaling, and the sign of described second carrier wave is sent to described subscriber equipment.
Alternatively, the detailed process of S1002 can comprise:
Send the control signaling that comprises the scheduling of resource indication to described subscriber equipment, described control signaling comprises: the PDCCH of the physical downlink control channel PDCCH of general C-RNTI scrambling, the C-RNTI scrambling of semi-continuous scheduling or the PDCCH of self-defining C-RNTI scrambling.
Described scheduling of resource indication comprises: the mapping relations between described first carrier and described second carrier wave and described re-transmission resource and persistent resources are distributed, the sign of the sign of described first carrier and described second carrier wave.For example, in the present embodiment, comprise the ID (Identifier, sign) of the first carrier and second carrier wave in the scheduling of resource indication, aforementioned mapping relations comprise: first carrier is corresponding to being user equipment allocation semi-continuous scheduling persistent resources; And second carrier wave is corresponding to being the non-semi-continuous scheduling re-transmission of user equipment allocation resource.
Further, below the resource regulating method of the embodiment of the invention will be described for the example in the practical application with further refinement.
Figure 11 is a scheduling of resource schematic diagram in the resource regulating method shown in Figure 10.As shown in figure 11, in this embodiment,, for example, on carrier wave 1 SPS traffic assignments resource with the professional sub-carrier scheduling of the professional and non-SPS of SPS, on carrier wave 2 non-SPS traffic assignments resource.Shown in the sign I among Figure 11, can on carrier wave 1, distribute the persistent resources of SPS business, and on carrier wave 2, distribute the re-transmission resource of non-SPS business.Present embodiment need add the carrier wave ID of corresponding another one carrier wave in the RRC signaling.
The resource regulating method of the embodiment of the invention by the re-transmission resource of SPS persistent resources and non-SPS is distributed on different carrier waves respectively, thereby can avoid SPS persistent resources and non-SPS to retransmit the afoul problem of resource allocation effectively.By technique scheme, the embodiment of the invention has reduced the transmission delay of eating dishes without rice or wine, has promoted the user experience effect, has reduced packet loss, has improved capacity, has improved systematic function.
The flow chart of a kind of resource regulating method that Figure 12 provides for the embodiment of the invention.As shown in figure 12, this method comprises:
S1201, on a plurality of carrier waves, be user equipment allocation semi-continuous scheduling persistent resources first according to regular time skew between the adjacent carrier;
S1202, according to carrier wave number and described time migration, be generated as the time interval of user equipment allocation semi-continuous scheduling persistent resources;
S1203, on each carrier wave, according to the described time interval, be the follow-up semi-continuous scheduling persistent resources of described user equipment allocation;
S1204, on each carrier wave, for described user equipment allocation after the semi-continuous scheduling persistent resources, for user equipment allocation repeatedly semi-continuous scheduling retransmit resource;
S1205, will notify described subscriber equipment to the allocation result that described semi-continuous scheduling retransmits resource and described semi-continuous scheduling persistent resources.
Alternatively, the detailed process of S1201～S1202 also can comprise:
According to carrier wave number and described time migration, be generated as the very first time interval and second time interval of user equipment allocation semi-continuous scheduling persistent resources, and the described very first time is at interval less than second time interval;
On each carrier wave, the mode according to the described very first time interval and described second time interval replace is the follow-up semi-continuous scheduling persistent resources of described user equipment allocation.
Alternatively, the detailed process of S1205 can comprise:
Send the control signaling that comprises the scheduling of resource indication to described subscriber equipment, described control signaling comprises: the PDCCH of the physical downlink control channel PDCCH of general C-RNTI scrambling, the C-RNTI scrambling of semi-continuous scheduling or the PDCCH of self-defining C-RNTI scrambling; Described scheduling of resource indication comprises: the sign of described different carrier, described time migration and the described time interval.
Alternatively, in concrete the application, can also comprise the above-mentioned very first time interval and second time interval in the above-mentioned scheduling of resource indication.
Alternatively, in the embodiment of the invention, the method for Figure 12 can also comprise:
Dispose the sign of described a plurality of carrier waves and distribute time interval of persistent resources by radio resource control signaling, and sign that will described a plurality of carrier waves and the time interval of distribution persistent resources send to described subscriber equipment.
Further, below the resource regulating method of the embodiment of the invention will be described for the example in two practical applications with further refinement.Need to prove that these two examples all are directed to the problem that solves in the above-mentioned application scenarios two.
Figure 13 is a scheduling of resource schematic diagram in the resource regulating method shown in Figure 12.The embodiment of the invention is by the initial moment and the time interval that change persistent resources and distribute and use 3 carrier wave unit to solve the afoul problem of resource allocation in the application scenarios two.As shown in figure 13, distribute the SPS persistent resources at the 0ms of carrier wave 1 (carrier 1) for this UE, and distribute follow-up identical SPS persistent resources to UE every 60ms.20ms at carrier wave 2 (carrier 2) distributes the SPS persistent resources for this UE, and distributes follow-up identical SPS persistent resources every 60ms.40ms at carrier wave 3 (carrier3) distributes the SPS persistent resources for this UE, and distributes follow-up identical SPS persistent resources every 60ms.And on above-mentioned each carrier wave, eNB retransmits resource for UE distributes five SPS after having distributed the SPS persistent resources for UE.Present embodiment need add the carrier index of corresponding carrier wave in the RRC signaling.
Also can adopt a plurality of carrier waves unit, suppose that carrier wave unit number is N, N is a positive integer, the initial moment side-play amount that the persistent resources of an above-mentioned N carrier wave is distributed is T1ms, the time interval that persistent resources is distributed is T2ms, then when satisfying T2=T1*N, also can realize the embodiment of the invention.Preferably, in order to save resource, the value of N is preferably 2 or 3, distributes afoul problem to solve re-transmission resource allocation and persistent resources by minimum number of carriers.
By adopting technique scheme, solved the afoul problem of persistent resources that the 5th time of SPS business retransmits resource and SPS business.
Figure 14 is another scheduling of resource schematic diagram in the resource regulating method shown in Figure 12.The initial moment and the time interval that the embodiment of the invention is distributed by the change persistent resources, and use 2 carrier wave unit to solve the afoul problem of resource allocation in the application scenarios two.As shown in figure 14, being this UE distribution persistent resources earlier at the 0ms of carrier 1, is that this UE distributes same persistent resources at 20ms then, is that this UE distributes same persistent resources at 80ms next.40ms at carrier 2 distributes persistent resources for this UE, distributes same persistent resources at 60ms for this UE then, next distributes same persistent resources at 120ms for this UE.In embodiments of the present invention, eNB distributes the very first time of persistent resources to be spaced apart 20ms on each carrier wave, and second time interval was 60ms, and the mode that replaces according to the very first time interval and second time interval on each carrier wave is that UE distributes persistent resources.
Certainly, it will be appreciated by those skilled in the art that above is exemplary illustration only, but not is used to limit the embodiment of the invention.Present embodiment need add the carrier index of corresponding carrier wave in the RRC signaling, increase a kind of time interval of Resources allocation simultaneously.
The zero-time and the time interval that the embodiment of the invention is distributed by the SPS persistent resources that changes a plurality of carrier waves, solved the persistent resources that the 5th time of SPS business retransmit resource and SPS business and distributed afoul problem.By technique scheme, the embodiment of the invention has reduced the transmission delay of eating dishes without rice or wine, has promoted the user experience effect, has reduced packet loss, has improved capacity, has improved systematic function.
Of particular note, the scheme that the foregoing description discloses is not limited in the SPS scheduling that is applied to LTE-A multicarrier system, and every SPS scheduling that relates to multicarrier system can be used the technical scheme of the embodiment of the invention.The multi-carrier scheduling among the HSPA for example.
The embodiment of the invention also provides a kind of resource scheduling device, and this resource scheduling device comprises the base station.
Figure 15 is the allomeric function block diagram of the resource scheduling device of the embodiment of the invention.As shown in figure 15, described base station 50 comprises:
Scheduling of resource unit 501 is used for conflict re-transmission resource and one of them of persistent resources describedly engraving when conflicting mutually of being dispatched to second carrier wave constantly mutually on the first carrier;
Alternatively, above-mentioned base station 50 can further include receiving element 503, is used to receive described subscriber equipment and engraves the data corresponding to described re-transmission resource and described persistent resources that send simultaneously when described first carrier and described second carrier wave described conflicted mutually.
Alternatively, for different application, described scheduling of resource unit 501, can also be used to adopt first carrier is user equipment allocation semi-continuous scheduling persistent resources, adopting second carrier wave is that the non-semi-continuous scheduling of user equipment allocation retransmits resource.
Figure 16 is the detailed functional block diagram of the scheduling of resource unit of the embodiment of the invention.As shown in figure 16, the scheduling of resource unit 501 of the embodiment of the invention specifically can comprise:
First distributes subelement 5011, be used at a plurality of carrier waves, and be user equipment allocation semi-continuous scheduling persistent resources first according to regular time skew between the adjacent carrier;
Assignment interval generates subelement 5012, is used for being generated as the time interval of user equipment allocation semi-continuous scheduling persistent resources according to carrier wave number and described time migration;
Second distributes subelement 5013, is used at each carrier wave, according to the described time interval, is the follow-up semi-continuous scheduling persistent resources of described user equipment allocation;
The 3rd distributes subelement 5014, be used at each carrier wave, for described user equipment allocation after the semi-continuous scheduling persistent resources, for user equipment allocation repeatedly semi-continuous scheduling retransmit resource.
Alternatively, in concrete the application, described assignment interval generates subelement 5012, can also be used for according to carrier wave number and described time migration, be generated as the very first time interval and second time interval of user equipment allocation semi-continuous scheduling persistent resources, and the described very first time is at interval less than second time interval;
Described second distributes subelement 5013, can also be used at each carrier wave, and the mode according to the described very first time interval and described second time interval replace is the follow-up semi-continuous scheduling persistent resources of described user equipment allocation.
Described scheduling indicating member 502, can be used for sending the control signaling that comprises the scheduling of resource indication to described subscriber equipment, described control signaling comprises: the PDCCH of the physical downlink control channel PDCCH of general C-RNTI scrambling, the C-RNTI scrambling of semi-continuous scheduling or the PDCCH of self-defining C-RNTI scrambling.
The method of work of the resource scheduling device of the embodiment of the invention and principle are described in detail in the aforementioned embodiment, do not give unnecessary details at this.
The base station of the embodiment of the invention provides the scheme that solves the conflict that retransmits resource and SPS persistent resources under a kind of multicarrier, thereby has reduced the transmission delay of eating dishes without rice or wine, and has reduced packet loss, has improved capacity, has improved systematic function.
The embodiment of the invention also provides a kind of data transmission method for uplink.Figure 17 is the flow chart of the data transmission method for uplink of the embodiment of the invention.As shown in figure 17, this method comprises:
S1701, reception resource scheduling device are to conflict mutually the re-transmission resource constantly and the scheduling result of persistent resources; Described scheduling result comprise with on the first carrier mutually conflict constantly the re-transmission resource and one of them of persistent resources, what be dispatched to second carrier wave describedly engraves when conflicting mutually;
In the present embodiment, this resource scheduling device can be a kind of base station.
For example, can know that the base station is to retransmitting the allocation result of resource and persistent resources by receiving the control signaling that comprises the scheduling of resource indication that the base station sends.Described control signaling comprises: the PDCCH of the physical downlink control channel PDCCH of general C-RNTI scrambling, the C-RNTI scrambling of semi-continuous scheduling or the PDCCH of self-defining C-RNTI scrambling.
Alternatively, this scheduling of resource indication can comprise: the mapping relations between different carrier waves and re-transmission resource and persistent resources are distributed and the sign of different carrier;
Alternatively, the indication of this scheduling of resource also can comprise: distribute the time migration of persistent resources first and the time interval of the different follow-up persistent resources of distribution that carrier wave adopted between the sign of different carrier, the adjacent carrier of different carrier.
S1702, according to described scheduling result, when described first carrier and described second carrier wave described conflicted mutually, engrave the data that send simultaneously corresponding to described re-transmission resource and described persistent resources.
For example, can be for according to the re-transmission resource of distributing on the carrier wave wherein, send to the base station and to retransmit TB; And, send biography TB just to the base station simultaneously according to the persistent resources of distributing on another carrier wave.
The data transmission method for uplink of the embodiment of the invention owing to can send re-transmission TB and just pass TB to the base station, thereby can reduce the transmission delay of eating dishes without rice or wine, improves user experience in same TTI; And the reduction packet loss, the raising capacity improves systematic function.
The embodiment of the invention also provides a kind of data sending device.This data sending device can comprise subscriber equipment.Figure 18 is the functional block diagram of the data sending device of the embodiment of the invention.As shown in figure 18, this device 60 comprises:
Receiving element 601 is used to receive resource scheduling device to conflict mutually the re-transmission resource constantly and the scheduling result of persistent resources; Described scheduling result comprise with on the first carrier mutually conflict constantly the re-transmission resource and one of them of persistent resources, what be dispatched to second carrier wave describedly engraves when conflicting mutually;
Transmitting element 602 is used for according to described scheduling result, engraves the data that send simultaneously corresponding to described re-transmission resource and described persistent resources when described first carrier and described second carrier wave described conflicted mutually.
The data sending device that the embodiment of the invention provides owing to can send re-transmission TB and just pass TB to the base station, thereby can reduce the transmission delay of eating dishes without rice or wine, improves user experience in same TTI; And the reduction packet loss, the raising capacity improves systematic function.
The embodiment of the invention also provides a kind of communication system.This system comprises the resource scheduling device of the embodiment of the invention and the data sending device of the embodiment of the invention.
Figure 19 is the communication system functionality block diagram of the embodiment of the invention.As shown in figure 19, this system 100 comprises:
Alternatively, this system 100 can further include data sending device 60, be used to receive 50 pairs of resource scheduling devices mutually conflict constantly the re-transmission resource and the scheduling result of persistent resources; Described scheduling result comprise with on the first carrier mutually conflict constantly the re-transmission resource and one of them of persistent resources, what be dispatched to second carrier wave describedly engraves when conflicting mutually; And, when conflicting mutually, described first carrier and described second carrier wave described engrave the data that send simultaneously corresponding to described re-transmission resource and described persistent resources according to described scheduling result.
The communication system of the embodiment of the invention, because when retransmitting resource and SPS persistent resources distribution conflict, conflict above-mentioned re-transmission resource or one of SPS persistent resources constantly is dispatched to the distribution of getting on of another one carrier wave, and indicate according to scheduling of resource by data sending device, carry out data simultaneously by different carrier waves and send.Therefore, adopt technique scheme, reduced the transmission delay of eating dishes without rice or wine, reduced packet loss, improved capacity, improved systematic function.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access Memory, RAM) etc.
Above embodiment only in order to the technical scheme of the explanation embodiment of the invention, is not intended to limit; Although the embodiment of the invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment technical scheme of the embodiment of the invention.
Claims (12)
1. a resource regulating method is characterized in that, described method comprises:
With conflict re-transmission resource and one of them of persistent resources describedly engraving when conflicting mutually of being dispatched to second carrier wave constantly mutually on the first carrier;
Notify described subscriber equipment with the scheduling result of described re-transmission resource and described persistent resources.
2. method according to claim 1 is characterized in that, and is described with conflict re-transmission resource and one of them of persistent resources describedly engraving when conflicting mutually of being dispatched to second carrier wave constantly mutually on the first carrier, comprising:
Adopting first carrier is user equipment allocation semi-continuous scheduling persistent resources, and adopting second carrier wave is that the non-semi-continuous scheduling of user equipment allocation retransmits resource.
3. method according to claim 1 is characterized in that, and is described with conflict re-transmission resource and one of them of persistent resources describedly engraving when conflicting mutually of being dispatched to second carrier wave constantly mutually on the first carrier, comprising:
On a plurality of carrier waves, be user equipment allocation semi-continuous scheduling persistent resources first according to regular time skew between the adjacent carrier;
According to carrier wave number and described time migration, be generated as the time interval of user equipment allocation semi-continuous scheduling persistent resources;
On each carrier wave,, be the follow-up semi-continuous scheduling persistent resources of described user equipment allocation according to the described time interval;
On each carrier wave, for described user equipment allocation after the semi-continuous scheduling persistent resources, for user equipment allocation repeatedly semi-continuous scheduling retransmit resource.
4. method according to claim 3 is characterized in that, and is described according to carrier wave number and described time migration, is generated as the time interval of user equipment allocation semi-continuous scheduling persistent resources; On each carrier wave, according to the described time interval, be the follow-up semi-continuous scheduling persistent resources of described user equipment allocation, comprising:
According to carrier wave number and described time migration, be generated as the very first time interval and second time interval of user equipment allocation semi-continuous scheduling persistent resources, and the described very first time is at interval less than second time interval;
On each carrier wave, the mode according to the described very first time interval and described second time interval replace is the follow-up semi-continuous scheduling persistent resources of described user equipment allocation.
5. according to each described method among the claim 1-2, it is characterized in that, will notify described subscriber equipment, comprising the scheduling result of described re-transmission resource and described persistent resources:
Send the control signaling that comprises the scheduling of resource indication to described subscriber equipment, described control signaling comprises: the physical downlink control channel PDCCH of general Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI scrambling, the PDCCH of semi-continuous scheduling C-RNTI scrambling or the PDCCH of self-defining C-RNTI scrambling; Described scheduling of resource indication comprises: the mapping relations between described first carrier and described second carrier wave and described re-transmission resource and persistent resources are distributed, the sign of the sign of described first carrier and described second carrier wave.
6. according to each described method among the claim 3-4, it is characterized in that, will notify described subscriber equipment, comprising the scheduling result of described re-transmission resource and described persistent resources:
Send the control signaling that comprises the scheduling of resource indication to described subscriber equipment, described control signaling comprises: the physical downlink control channel PDCCH of general Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI scrambling, the PDCCH of semi-continuous scheduling C-RNTI scrambling or the PDCCH of self-defining C-RNTI scrambling; Described scheduling of resource indication comprises; The sign of described a plurality of carrier waves, described time migration and the described time interval.
7. a resource scheduling device is characterized in that, described resource scheduling device comprises:
The scheduling of resource unit is used for conflict re-transmission resource and one of them of persistent resources describedly engraving when conflicting mutually of being dispatched to second carrier wave constantly mutually on the first carrier;
The scheduling indicating member will be notified described subscriber equipment to the scheduling result of described re-transmission resource and described persistent resources.
8. resource scheduling device according to claim 7 is characterized in that,
It is user equipment allocation semi-continuous scheduling persistent resources that described scheduling of resource unit also is used to adopt first carrier, and adopting second carrier wave is that the non-semi-continuous scheduling of user equipment allocation retransmits resource.
9. resource scheduling device according to claim 7 is characterized in that, described scheduling of resource unit also comprises:
First distributes subelement, be used at a plurality of carrier waves, and be user equipment allocation semi-continuous scheduling persistent resources first according to regular time skew between the adjacent carrier;
Assignment interval generates subelement, is used for being generated as the time interval of user equipment allocation semi-continuous scheduling persistent resources according to carrier wave number and described time migration;
Second distributes subelement, is used at each carrier wave, according to the described time interval, is the follow-up semi-continuous scheduling persistent resources of described user equipment allocation;
The 3rd distributes subelement, be used at each carrier wave, for described user equipment allocation after the semi-continuous scheduling persistent resources, for user equipment allocation repeatedly semi-continuous scheduling retransmit resource.
10. resource scheduling device according to claim 9 is characterized in that,
Described assignment interval generates subelement, also is used for according to carrier wave number and described time migration, be generated as the very first time interval and second time interval of user equipment allocation semi-continuous scheduling persistent resources, and the described very first time is at interval less than second time interval;
Described second distributes subelement, also is used at each carrier wave, and the mode according to the described very first time interval and described second time interval replace is the follow-up semi-continuous scheduling persistent resources of described user equipment allocation.
11. resource scheduling device according to claim 7 is characterized in that,
Described scheduling indicating member, be used for sending the control signaling that comprises the scheduling of resource indication to described subscriber equipment, described control signaling comprises: the physical downlink control channel PDCCH of general Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI scrambling, the PDCCH of semi-continuous scheduling C-RNTI scrambling or the PDCCH of self-defining C-RNTI scrambling.
12. a communication system is characterized in that, described communication system comprises:
Resource scheduling device is used for conflict re-transmission resource and one of them of persistent resources describedly engraving when conflicting mutually of being dispatched to second carrier wave constantly mutually on the first carrier; Notify described subscriber equipment with the scheduling result of described re-transmission resource and described persistent resources.
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