CN104519575A - Method for performing DL/UL (Downlink/Uplink) TDD (Time Division Duplex) dynamic configuration in TDD eIMTA (enhanced Interference Management and Traffic Adaptation) system - Google Patents
Method for performing DL/UL (Downlink/Uplink) TDD (Time Division Duplex) dynamic configuration in TDD eIMTA (enhanced Interference Management and Traffic Adaptation) system Download PDFInfo
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Abstract
The invention provides a method for performing DL/UL (Downlink/Uplink) TDD (Time Division Duplex) dynamic configuration in a TDD eIMTA (enhanced Interference Management and Traffic Adaptation) system. The method for performing DL TDD dynamic configuration comprises the following steps: configuring any one of TDD configuration 0 to TDD configuration 6 as DL reference configuration; specific to the DL reference configuration, determining a candidate set for use in reconfiguration of a PDSCH (Physical Downlink Shared Channel) in order that the TDD configuration of a base station can only be selected from the candidate set in a DL TDD dynamic configuration process, wherein the UL sub-frame position of each type of TDD configuration in the candidate set at least covers the UL sub-frame position of the DL reference configuration; and informing UE (User Equipment) of the DL reference configuration through RRC (Radio Resource Control) signaling in order that the UE always executes a DL HARQ (Hybrid Automatic Repeat Request) process according to the time sequence of the DL reference configuration during DL TDD dynamic configuration.
Description
Technical field
The present invention generally relates to wireless communication field, more specifically, relates to the method for carrying out down link (DL)/up link (UL) time division duplex (TDD) dynamic-configuration in TDDeIMTA system.
Background technology
In current TDD system, transmit TDD configuration via system information block 1 (SIB1).Define the frame structure of the TDD configuration of seven types as shown in table 1 below in existing protocol, in often kind of configuration, UL and DL subframe is interlocked according to certain switching cycle:
Table 1TDD Configuration Type
In table 1, alphabetical D indicates DL subframe, and letter U instruction UL subframe, alphabetical S indicates special subframe, and it can be used to transmit Downlink Control Information.
Along with the change of uplink downlink business, TDD configuration periodically or aperiodically can be changed.Such as, if UL business increases, DL business reduces, can UL number of subframes more TDD configuration original TDD be replaced configure in option table 1, otherwise, if the minimizing of UL business, DL business increases, and can DL number of subframes more TDD configuration replace original TDD to configure in option table 1.The minimal modifications cycle of current SIBI is 640ms, and this possibly cannot match with the transient change of business.Thus, the dynamic DL/ULTDD configuration that the cycle that proposes is shorter, can more promptly make a response to business change.
Recently, third generation partner program (3GPP) is discussing the problem adapting to the Physical Downlink Shared Channel (PDSCH) in (Enhanced Interference Management and TrafficAdaptation, eIMTA) system and/or the scheduling in Physical Uplink Shared Channel (PUSCH) and mixed automatic retransfer (HARQ) sequential about TDD enhancement mode interference management and flow.For DL HARQ sequential, discuss at present and can operate as DL reference configuration according to by the TDD of high-rise wireless heterogeneous networks (RRC) signal deployment configuration 2 and TDD configuration 5.For UL HARQ sequential, the preferred plan of still not reaching an agreement at present solves this problem.
Summary of the invention
In view of the foregoing, the invention provides the overall project of the scheduling/HARQ sequence problem solved when carrying out DL/UL TDD dynamic-configuration in TDD eIMTA system.Specifically, the present invention proposes for DL HARQ sequential, using the scheme of often kind of TDD configuration (and being not only TDD configuration 2 and TDD configuration 5) as DL reference configuration, and four kinds of very promising solutions for UL HARQ sequential can be proposed.
According to a first aspect of the invention, provide the method for carrying out DL TDD dynamic-configuration in TDD eIMTA system in a base station, comprising: any one in selection TDD configuration 0-6 is as DL reference configuration; For this DL reference configuration; determine the candidate collection of reshuffling of PDSCH; to make in DL TDD Dynamic Configuration Process; the TDD configuration of base station can only be selected from described candidate collection, and the UL subframe position of often kind of TDD configuration wherein in this candidate collection at least covers the UL subframe position of described DL reference configuration; By RRC signaling, described DL reference configuration is informed to UE, to make during DL TDD dynamic-configuration, UE always performs DL HARQ procedure according to the sequential of described DL reference configuration.
According to a second aspect of the invention; provide a kind of method of carrying out UL TDD dynamic-configuration in TDD eIMTA system in a base station; wherein SIB1 configuration is any one that TDD configures in 1-5; and allow the UL subframe in SIB1 change into DL subframe and do not allow DL subframe to change into UL subframe, the method comprises: any one in selection TDD configuration 1-5 is as UL reference configuration; For this UL reference configuration; determine the candidate collection of reshuffling of PUSCH; to make in UL TDD Dynamic Configuration Process; the TDD configuration of base station can only be selected from described candidate collection; the DL subframe position of often kind of TDD configuration wherein in this candidate collection at least covers the DL subframe position of described UL reference configuration, and this candidate collection does not comprise TDD configuration 0 and 6; Defer to the sequential of SIB1 configuration to perform UL HARQ procedure.
According to a third aspect of the present invention; provide a kind of method of carrying out ULTDD dynamic-configuration in TDD eIMTA system in a base station; wherein SIB1 configuration is fixed as TDD configuration 1; and allow the DL subframe in SIB1 to change into UL subframe, the method comprises: any one in selection TDD configuration 1-5 is as UL reference configuration; For this UL reference configuration; determine the candidate collection of reshuffling that can be used for PUSCH; wherein in UL TDD Dynamic Configuration Process; the TDD configuration of base station can only be selected from described candidate collection, and the DL subframe position of often kind of TDD configuration wherein in this candidate collection at least covers the DL subframe position of described UL reference configuration; The sequential deferring to SIB1 configuration performs ULHARQ process, and when candidate collection comprises TDD configuration 0 or 6, the UL HARQ sequential of subframe 4 and 9 defers to the HARQ sequential of the subframe 3 and 8 in TDD configuration 1 respectively, and subframe 4 is identical with the HARQ procedure ID of 8 with the subframe 3 that configures in 1 with TDD respectively of HARQ procedure ID of 9.
According to a fourth aspect of the present invention; provide a kind of method of carrying out UL TDD dynamic-configuration in TDD eIMTA system in a base station; wherein SIB1 configuration is any one that TDD configures in 1-5; and allow the DL subframe in SIB1 to change into UL subframe, the method comprises: any one in selection TDD configuration 0-6 is as UL reference configuration; For this UL reference configuration; determine the candidate collection of reshuffling that can be used for PUSCH; wherein in UL TDD Dynamic Configuration Process; the TDD configuration of base station can only be selected from described candidate collection, and the DL subframe position of often kind of TDD configuration wherein in this candidate collection at least covers the DL subframe position of described UL reference configuration; When selected UL reference configuration be in 1-5 any one time, the sequential deferring to SIB1 configuration performs UL HARQ procedure; When selected UL reference configuration is 0 or 6, by RRC signaling, described UL reference configuration is informed to UE, to make during TDD dynamic-configuration, UE always performs HARQ procedure according to selected UL reference configuration.
According to a fifth aspect of the present invention; provide a kind of method of carrying out UL TDD dynamic-configuration in TDD eIMTA system in a base station; wherein allow the DL subframe in SIB1 to change into UL subframe, the method comprises: the one in selecting multiple TDD to configure is as UL reference configuration; For this UL reference configuration; determine the candidate collection of reshuffling of PDSCH; to make in UL TDD Dynamic Configuration Process; the TDD configuration of base station can only be selected from described candidate collection, and the DL subframe position of often kind of TDD configuration wherein in this candidate collection at least covers the DL subframe position of described UL reference configuration; By RRC signaling, described UL reference configuration is informed to UE, to make during TDD dynamic-configuration, UE always performs HARQ procedure according to described UL reference configuration.
Accompanying drawing explanation
After the description below with reference to the specific embodiment of the present invention given by following accompanying drawing, the present invention will be understood better, and other objects of the present invention, details, feature and advantage will become more apparent.In the accompanying drawings:
Fig. 1 shows the schematic diagram carrying out the method for DL TDD dynamic-configuration in the base station in TDD eIMTA system according to embodiment of the present invention;
Fig. 2 shows the schematic diagram of HARQ RTT when TDD is configured to configuration 5;
Fig. 3 shows the schematic diagram carrying out the first method of UL TDD dynamic-configuration in TDD eIMTA system in a base station according to embodiment of the present invention;
Fig. 4 shows the schematic diagram carrying out the second method of UL TDD dynamic-configuration in TDD eIMTA system in a base station according to embodiment of the present invention;
Fig. 5 shows the schematic diagram carrying out the third method of UL TDD dynamic-configuration in TDD eIMTA system in a base station according to embodiment of the present invention
Fig. 6 shows the schematic diagram carrying out the 4th method of UL TDD dynamic-configuration in TDD eIMTA system in a base station according to embodiment of the present invention; And
Fig. 7 shows the schematic diagram of the HARQ sequential of the subframe 4 and 9 when UL HARQ sequential is deferred to SIB1 and allowed TDD configuration 0 and 6 for reshuffling.
Embodiment
Below with reference to accompanying drawings preferred implementation of the present disclosure is described in more detail.Although show preferred implementation of the present disclosure in accompanying drawing, but should be appreciated that, the disclosure can be realized in a variety of manners and not should limit by the execution mode of setting forth here.On the contrary, provide these execution modes to be to make the disclosure more thorough and complete, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
Below, with reference to figure 1 and Fig. 2-6 describe respectively according to embodiment of the present invention carry out DL TDD dynamic-configuration and UL TDD dynamic-configuration time the solution of HARQ sequential.
dL HARQ sequential
Fig. 1 shows the schematic diagram carrying out the method 100 of DL TDD dynamic-configuration in the base station in TDD eIMTA system according to embodiment of the present invention.
First, in step 110, any one in base station selected TDD configuration 0-6 is as DL reference configuration.In the method 100, any one in kind of the TDD Configuration Type of 7 shown in above-mentioned table 1 can be selected in base station, and is not only TDD configuration 2 and 5, as DL reference configuration.
In step 120, for selected DL reference configuration, the candidate collection of reshuffling that can be used for PDSCH is determined in base station.This candidate collection makes in DL TDD Dynamic Configuration Process, and the TDD configuration of base station can only change between the TDD configuration included by this candidate collection, that is, the TDD configuration of base station can only be selected from this candidate collection.
In one implementation, the UL subframe position of often kind of TDD configuration in this candidate collection at least covers the UL subframe position of this DL reference configuration.
Such as, when selecting TDD configuration 0 as DL reference configuration, due to the UL subframe of TDD configuration 0 be positioned at the 2nd, 3,4,7,8, in 9 subframes, and TDD configure in 0-6 the UL subframe position only having TDD to configure 0 can cover the 2nd, 3,4,7,8,9 subframes, therefore determined candidate collection only comprises TDD configuration 0.
And for example, when selecting TDD configuration 1 as DL reference configuration, due to the UL subframe of TDD configuration 1 be positioned at the 2nd, 3,7, in 8 subframes, and TDD configure in 0-6 only have TDD to configure 0, TDD configuration 1 and TDD configuration 6 (its UL subframe is positioned at the 2nd, 3,4,7, in 8 subframes) UL subframe position can cover the 2nd, 3,7,8 subframes, therefore determined candidate collection comprises TDD configuration 0, TDD configuration 1 and TDD configuration 6.
For another example, when selecting TDD configuration 2 as DL reference configuration, because the UL subframe of TDD configuration 2 is positioned at the 2nd, in 7 subframes, and TDD configure in 0-6 only have TDD to configure 0, TDD configuration 1, TDD configuration 2 and TDD configuration 6 UL subframe position can cover the 2nd, 7 subframes, therefore determined candidate collection comprises TDD configuration 0, TDD configuration 1, TDD configuration 2 and TDD configuration 6.
Similar, for often kind of TDD configuration as the situation of DL reference configuration, corresponding candidate collection can be determined.Table 2 below lists TDD and configure 0-6 as corresponding relation during DL reference configuration and between the candidate collection of reshuffling that may be used for PDSCH.
The corresponding relation of table 2DL reference configuration and candidate collection
Corresponding relation shown in table 2 can prestore in a base station, thus makes the determination candidate collection that base station can be convenient.
Next, in step 130, selected DL reference configuration is informed to UE by RRC signaling by base station, and to make during DL TDD dynamic-configuration, UE always performs DL HARQ procedure according to the sequential of this DL reference configuration.
Application way 100, base station can determine that the scope of DL TDD dynamic-configuration to carry out dynamic-configuration within the scope of this, and notifies that DL reference configuration always can perform DL HARQ procedure according to the sequential of this DL reference configuration to make UE during Dynamic Configuration Process by the high-rise RRC signaling that the cycle is longer to UE.
uL HAR sequential
For UL HARQ sequential, consider and 10ms is not equal to for TDD configuration 0 and 6, HARQ round trip delay time (RTT), thus the most senior general of PUSCH retransmission delay reaches 70ms or 60ms.Such as, Fig. 2 shows the schematic diagram of HARQRTT when TDD is configured to configuration 5.As shown in Figure 2, when SIB1 is configured to TDD configuration 0, and when the TDD of reality is configured to configuration 5, PUSCH retransmission delay will up to 70ms.
Therefore, in the present invention, for UL HARQ sequential, we advise that SIB1 is configured to TDD and configures 1-5.
Based on this suggestion, below according to whether supporting that TDD configures 0 and 6 and changes into UL subframe for reshuffling and whether allow the DL subframe in SIB1, propose following 4 kinds for determining the concrete scheme of UL HARQ sequential.
Fig. 3 shows the schematic diagram of first method 300 of carrying out UL TDD dynamic-configuration in the base station in TDD eIMTA system according to embodiment of the present invention.
The precondition that method 300 performs is SIB1 configuration can be that TDD configures 1-5, and only allows the UL subframe in SIB1 change into DL subframe and do not allow DL subframe to change into UL subframe.
First, in step 310, any one in base station selected TDD configuration 1-5 is as UL reference configuration.
In step 320, for selected UL reference configuration, the candidate collection of reshuffling that can be used for PUSCH is determined in base station.This candidate collection makes in UL TDD Dynamic Configuration Process, and the TDD configuration of base station can only change between the TDD configuration included by this candidate collection, that is, the TDD configuration of base station can only be selected from this candidate collection.
In one implementation, the DL subframe position of often kind of TDD configuration in this candidate collection at least covers the DL subframe position of this UL reference configuration.Table 3 below illustrates TDD and configure 1-5 as corresponding relation during UL reference configuration and between the candidate collection of reshuffling that may be used for PUSCH.
The corresponding relation of table 3UL reference configuration and candidate collection
Next, in step 330, the sequential of SIB1 configuration is deferred to perform UL HARQ procedure in base station.
Can find out, in this scheme, the candidate collection of UL TDD dynamic-configuration does not comprise TDD configuration 0 and 6, thus limits its degree of freedom of reshuffling.
In order to support that TDD configures 0 and 6 for reshuffling, propose following method 400-600.
Fig. 4 shows the schematic diagram carrying out the second method 400 of UL TDD dynamic-configuration in TDD eIMTA system in a base station according to embodiment of the present invention.
In method 400, SIB1 configuration is fixed as TDD configuration 1, and allows the DL subframe in SIB1 to change into UL subframe.That is, the subframe being configured to DL subframe in SIB1 (situation of Pcell) and RadioResourceConHgCommonSCell IE (situation of SCell) can change into UL subframe.For the UE not supporting eIMTA, can by being that multicast/multicast single-frequency network (MBSFN) subframe solves radio link monitoring (RLM)/RRM (RRM) problem by the DL sub-frame configuration in flexible sub-frame (subframe 3,4,7,8,9), and support the UL of the UE of eIMTA to transmit can to perform on data area (about the backward compatibility in TDD UL-DL eIMTA problem can REFERENCE TO RELATED people on January 18th, 2013 submit to, application number is the application for a patent for invention of 201310020284.6).
First, in step 410, any one in base station selected TDD configuration 1-5 is as UL reference configuration.
In step 420, for selected UL reference configuration, the candidate collection of reshuffling that can be used for PUSCH is determined in base station.This candidate collection makes in UL TDD Dynamic Configuration Process, and the TDD configuration of base station can only change between the TDD configuration included by this candidate collection, that is, the TDD configuration of base station can only be selected from this candidate collection.
In one implementation, the DL subframe position of often kind of TDD configuration in this candidate collection at least covers the DL subframe position of this UL reference configuration.Table 4 below lists TDD and configures 1-5 as corresponding relation during UL reference configuration and between the candidate collection of reshuffling that may be used for PUSCH.
The corresponding relation of table 4UL reference configuration and candidate collection
Next, in step 430, the sequential of SIB1 configuration is deferred to perform UL HARQ procedure in base station, and when candidate collection comprises TDD configuration 0 or 6, the ULHARQ sequential of subframe 4 and 9 defers to the HARQ sequential of the subframe 3 and 8 in TDD configuration 1 respectively, and subframe 4 is identical with the HARQ procedure ID of 8 with the subframe 3 that configures in 1 with TDD respectively of HARQ procedure ID of 9.
Fig. 7 shows the schematic diagram of the HARQ sequential of the subframe 4 and 9 when UL HARQ sequential is deferred to SIB1 and allowed TDD configuration 0 and 6 for reshuffling.
Can find out, in this scheme, compared with method 300, the candidate collection of UL TDD dynamic-configuration comprises TDD configuration 0 and 6 while configuring 1 (UL reference configuration be TDD), thus the degree of freedom of reshuffling improves.According to this method, the HARQRTT of all UL subframes is 10ms.
Fig. 5 shows the schematic diagram carrying out the third method 500 of UL TDD dynamic-configuration in TDD eIMTA system in a base station according to embodiment of the present invention.Method 500 can regard the compromise of method 300 and 400 as.
When not using clear and definite RRC signaling, the relation of UL reference configuration and candidate collection is as shown in table 2 above, and UL HARQ sequential defers to SIB1 configuration;
When indicating TDD configuration 6 as UL reference configuration by RRC signaling, ULHARQ sequential defers to TDD configuration 6, and candidate collection is { 1,2,3,4,5,6};
When indicating TDD configuration 0 as UL reference configuration by RRC signaling, ULHARQ sequential defers to TDD configuration 0, and candidate collection is { 0,1,2,3,4,5,6}.
In method 500, SIB1 configuration can be any one that TDD configures in 1-5, and allows the DL subframe in SIB1 to change into UL subframe, and UL reference configuration can be any one that TDD configures in 0-6.
First, in step 510, any one in base station selected TDD configuration 0-6 is as UL reference configuration.
In step 520, for selected UL reference configuration, the candidate collection of reshuffling that can be used for PUSCH is determined in base station.This candidate collection makes in UL TDD Dynamic Configuration Process, and the TDD configuration of base station can only change between the TDD configuration included by this candidate collection, that is, the TDD configuration of base station can only be selected from this candidate collection.
In one implementation, the DL subframe position of often kind of TDD configuration in this candidate collection at least covers the DL subframe position of this UL reference configuration.
Next, in step 530, judge whether whether selected UL reference configuration is TDD configuration 0 or 6.
If the judged result of step 530 is no, then method 500 proceeds to step 540, and the sequential of SIB1 configuration is deferred to perform UL HARQ procedure in base station.In this case, corresponding candidate collection is identical with the table 4 obtained in method 400 above.
If the judged result of step 530 is yes, then method 500 proceeds to step 550, uses TDD configuration 0 or 6 as UL reference configuration by the instruction of RRC signaling, defers to TDD configuration 0 and 6 respectively to make UL HARQ sequential.In this case, corresponding candidate collection is respectively { 0,1,2,3,4,5,6} and { 1,2,3,4,5,6}.
Table 5 below list TDD configure 0-6 as during UL reference configuration with the corresponding relation of the candidate collection of reshuffling that may be used for PUSCH.
The corresponding relation of table 5UL reference configuration and candidate collection
Fig. 6 shows the schematic diagram carrying out the 4th method 600 of UL TDD dynamic-configuration in TDD eIMTA system in a base station according to embodiment of the present invention.Method 600 is similar with method 100, all carry out notification reference configuration by the RRC signaling of high level, difference is mainly that method 100 is for DL TDD dynamic-configuration, and method 600 is for UL TDD dynamic-configuration, and by using MBSFN configuration, the DL subframe in SIB1 can be changed into UL subframe in method 600.
First, in step 610, any one in base station selected TDD configuration 0-6 is as UL reference configuration.
In step 620, for selected UL reference configuration, the candidate collection of reshuffling that can be used for PUSCH is determined in base station.This candidate collection makes in ULTDD Dynamic Configuration Process, and the TDD configuration of base station can only change between the TDD configuration included by this candidate collection, that is, the TDD configuration of base station can only be selected from this candidate collection.
In one implementation, the DL subframe position of often kind of TDD configuration in this candidate collection at least covers the DL subframe position of this UL reference configuration.
Similar with method 100, for often kind of TDD configuration as the situation of UL reference configuration, corresponding candidate collection can be determined.Table 3 below illustrates often kind of TDD configuration as corresponding relation during UL reference configuration and between the candidate collection of reshuffling that may be used for PUSCH.
The corresponding relation of table 3UL reference configuration and candidate collection
Corresponding relation shown in table 3 can prestore in a base station, thus makes the determination candidate collection that base station can be convenient.
Next, in step 630, selected UL reference configuration is informed to UE by RRC signaling by base station, and to make during TDD dynamic-configuration, UE always performs HARQ procedure according to the sequential of this UL reference configuration.
The present invention is that scheduling in TDD eIMTA system and HARQ sequential provide total solution.For DL HARQ sequential, provide the scheme of often kind of TDD configuration (and being not only TDD configuration 2 and TDD configuration 5) as DL reference configuration, and four kinds of very promising solutions are proposed for UL HARQ sequential.
In this article, according to using the linguistic context of this term, term " base station " can refer to the overlay area of base station and/or the base station served this overlay area or base station sub-system.In the disclosure, based on context, term " base station " can exchange with " community ", " Node B " " eNodeB " etc. and use.
In this article, with reference to accompanying drawing, method disclosed herein is described.But be to be understood that, shown in accompanying drawing and described in specification sequence of steps is only schematic, without departing from the scope of the claims, these method steps and/or action can perform according to different orders and the concrete order that be not limited to described in shown in accompanying drawing and specification.
In one or more exemplary design, the function that can realize described in the application by hardware, software, firmware or their combination in any.If realized with software, then can using described function as one or more instruction or code storage on a computer-readable medium, or transmit as the one or more instruction on computer-readable medium or code.Computer-readable medium comprises computer-readable storage medium and communication media, and wherein communication media comprises and contributes to computer program is delivered to another place arbitrary medium from a place.Storage medium can be the addressable any usable medium of universal or special computer.This computer-readable medium can comprise, such as but not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disc memory apparatus, disk storage device or other magnetic storage apparatus, or can be used for other medium any carrying or store the code modules of hope with the form of universal or special computer or the addressable instruction of universal or special processor or data structure.Further, any connection also can be known as computer-readable medium.Such as, if software be use coaxial cable, optical fiber cable, twisted-pair feeder, the wireless technology of Digital Subscriber Line (DSL) or such as infrared ray, radio and microwave and so on is come from website, server or other remote source, so the wireless technology of coaxial cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray, radio and microwave and so on is also included within the definition of medium.
Can realize by general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components or the combination in any for performing function as herein described or perform in conjunction with various exemplary logical block, module and the circuit described by the disclosure.The unit of device disclosed herein can use discrete hardware components to realize, and also can integrally realize at a nextport hardware component NextPort, as on processor.General processor can be microprocessor, or processor also can be any common processor, controller, microcontroller or state machine.Processor also can be implemented as the combination of computing equipment, such as, and the combination of the combination of DSP and microprocessor, multi-microprocessor, one or more microprocessor and DSP kernel, or other this kind of structure any.
Those of ordinary skill in the art it is also understood that various exemplary logical block, module, circuit and algorithm steps that the embodiment in conjunction with the application describes can be embodied as electronic hardware, computer software or the combination of the two.In order to clearly represent this interchangeability between hardware and software, all around its function, general description is carried out to various exemplary parts, block, module, circuit and step above.Be embodied as hardware as this function or be embodied as software, the design constraint depending on specific application and apply over the whole system.Those skilled in the art for often kind of application-specific, can realize described function in the mode of accommodation, but, thisly realize decision-making and should not be construed as and deviate from protection scope of the present invention.
Above description of the present disclosure is for enabling any those of ordinary skill of this area realize or use the present invention.To those skilled in the art, various amendment of the present disclosure is all apparent, and general principle defined herein also can be applied to other distortion when not departing from spirit of the present invention and protection range.Therefore, the present invention is not limited to example as herein described and design, but consistent with the widest scope of principle disclosed herein and novel features.
Claims (10)
1. carry out a method for DLTDD dynamic-configuration in TDDeIMTA system in a base station, comprising:
Any one in selection TDD configuration 0-6 is as DL reference configuration;
For this DL reference configuration; determine the candidate collection of reshuffling of PDSCH; to make in DLTDD Dynamic Configuration Process; the TDD configuration of base station can only be selected from described candidate collection, and the UL subframe position of often kind of TDD configuration wherein in this candidate collection at least covers the UL subframe position of described DL reference configuration;
By RRC signaling, described DL reference configuration is informed to UE, to make during DLTDD dynamic-configuration, UE always performs DLHARQ process according to the sequential of described DL reference configuration.
2. the method for claim 1, wherein for often kind of TDD configuration, determined candidate collection is as follows:
When TDD configuration 0 is as DL reference configuration, described candidate collection comprises TDD configuration 0,
When TDD configuration 1 is as DL reference configuration, described candidate collection comprises TDD configuration 0,1,6,
When TDD configuration 2 is as DL reference configuration, described candidate collection comprises TDD configuration 0,1,2,6,
When TDD configuration 3 is as DL reference configuration, described candidate collection comprises TDD configuration 0,3,6,
When TDD configuration 4 is as DL reference configuration, described candidate collection comprises TDD configuration 0,1,3,4,6,
When TDD configuration 5 is as DL reference configuration, described candidate collection comprises TDD and configures 0-6,
When TDD configuration 6 is as DL reference configuration, described candidate collection comprises TDD configuration 0,6.
3. in a TDDeIMTA system, carry out the method for ULTDD dynamic-configuration in a base station, wherein SIB1 configuration is any one that TDD configures in 1-5, and allow the UL subframe in SIB1 change into DL subframe and do not allow DL subframe to change into UL subframe, the method comprises:
Any one in selection TDD configuration 1-5 is as UL reference configuration;
For this UL reference configuration; determine the candidate collection of reshuffling of PUSCH; to make in ULTDD Dynamic Configuration Process; the TDD configuration of base station can only be selected from described candidate collection; the DL subframe position of often kind of TDD configuration wherein in this candidate collection at least covers the DL subframe position of described UL reference configuration, and this candidate collection does not comprise TDD configuration 0 and 6;
Defer to the sequential of SIB1 configuration to perform ULHARQ process.
4. method as claimed in claim 3, wherein for often kind of TDD configuration, determined candidate collection is as follows:
When TDD configuration 1 is as UL reference configuration, described candidate collection comprises TDD configuration 1,2,4,5,
When TDD configuration 2 is as UL reference configuration, described candidate collection comprises TDD configuration 2,5,
When TDD configuration 3 is as UL reference configuration, described candidate collection comprises TDD configuration 3,4,5,
When TDD configuration 4 is as UL reference configuration, described candidate collection comprises TDD configuration 4,5,
When TDD configuration 5 is as UL reference configuration, described candidate collection comprises TDD configuration 5.
5. carry out a method for ULTDD dynamic-configuration in TDD eIMTA system in a base station, wherein SIB1 configuration is fixed as TDD configuration 1, and allows the DL subframe in SIB1 to change into UL subframe, and the method comprises:
Any one in selection TDD configuration 1-5 is as UL reference configuration;
For this UL reference configuration; determine the candidate collection of reshuffling that can be used for PUSCH; wherein in ULTDD Dynamic Configuration Process; the TDD configuration of base station can only be selected from described candidate collection, and the DL subframe position of often kind of TDD configuration wherein in this candidate collection at least covers the DL subframe position of described UL reference configuration;
The sequential deferring to SIB1 configuration performs UL HARQ procedure, and when candidate collection comprises TDD configuration 0 or 6, the ULHARQ sequential of subframe 4 and 9 defers to the HARQ sequential of the subframe 3 and 8 in TDD configuration 1 respectively, and subframe 4 is identical with the HARQ procedure ID of 8 with the subframe 3 that configures in 1 with TDD respectively of HARQ procedure ID of 9.
6. method as claimed in claim 5, wherein for often kind of TDD configuration, determined candidate collection is as follows:
When TDD configuration 1 is as UL reference configuration, described candidate collection comprises TDD configuration 0,1,2,4,5,6,
When TDD configuration 2 is as UL reference configuration, described candidate collection comprises TDD configuration 2,5,
When TDD configuration 3 is as UL reference configuration, described candidate collection comprises TDD configuration 3,4,5,
When TDD configuration 4 is as UL reference configuration, described candidate collection comprises TDD configuration 4,5,
When TDD configuration 5 is as UL reference configuration, described candidate collection comprises TDD configuration 5.
7. carry out a method for ULTDD dynamic-configuration in TDD eIMTA system in a base station, wherein SIB1 configuration is any one that TDD configures in 1-5, and allows the DL subframe in SIB1 to change into UL subframe, and described method comprises:
Any one in selection TDD configuration 0-6 is as UL reference configuration;
For this UL reference configuration; determine the candidate collection of reshuffling that can be used for PUSCH; wherein in UL TDD Dynamic Configuration Process; the TDD configuration of base station can only be selected from described candidate collection, and the DL subframe position of often kind of TDD configuration wherein in this candidate collection at least covers the DL subframe position of described UL reference configuration;
When selected UL reference configuration be in 1-5 any one time, the sequential deferring to SIB1 configuration performs ULHARQ process;
When selected UL reference configuration is 0 or 6, by RRC signaling, described UL reference configuration is informed to UE, to make during TDD dynamic-configuration, UE always performs HARQ procedure according to selected UL reference configuration.
8. method according to claim 7, wherein for often kind of TDD configuration, determined candidate collection is as follows:
When TDD configuration 0 is as UL reference configuration, described candidate collection comprises TDD configuration 0,1,2,3,4,5,6,
When TDD configuration 1 is as UL reference configuration, described candidate collection comprises TDD configuration 1,2,4,5,
When TDD configuration 2 is as UL reference configuration, described candidate collection comprises TDD configuration 2,5,
When TDD configuration 3 is as UL reference configuration, described candidate collection comprises TDD configuration 3,4,5,
When TDD configuration 4 is as UL reference configuration, described candidate collection comprises TDD configuration 4,5,
When TDD configuration 5 is as UL reference configuration, described candidate collection comprises TDD configuration 5,
When TDD configuration 6 is as UL reference configuration, described candidate collection comprises TDD configuration 1,2,3,4,5,6.
9. carry out a method for ULTDD dynamic-configuration in TDD eIMTA system in a base station, wherein allow the DL subframe in SIB1 to change into UL subframe, the method comprises:
One in selecting multiple TDD to configure is as UL reference configuration;
For this UL reference configuration; determine the candidate collection of reshuffling of PDSCH; to make in ULTDD Dynamic Configuration Process; the TDD configuration of base station can only be selected from described candidate collection, and the DL subframe position of often kind of TDD configuration wherein in this candidate collection at least covers the DL subframe position of described UL reference configuration;
By RRC signaling, described UL reference configuration is informed to UE, to make during TDD dynamic-configuration, UE always performs HARQ procedure according to described UL reference configuration.
10. method as claimed in claim 9, wherein for often kind of TDD configuration, determined candidate collection is as follows:
When TDD configuration 0 is as UL reference configuration, described candidate collection comprises TDD configuration 0,1,2,3,4,5,6,
When TDD configuration 1 is as UL reference configuration, described candidate collection comprises TDD configuration 1,2,4,5,
When TDD configuration 2 is as UL reference configuration, described candidate collection comprises TDD configuration 2,5,
When TDD configuration 3 is as UL reference configuration, described candidate collection comprises TDD configuration 0,
When TDD configuration 4 is as UL reference configuration, described candidate collection comprises TDD configuration 4,5,
When TDD configuration 5 is as UL reference configuration, described candidate collection comprises TDD configuration 5,
When TDD configuration 6 is as UL reference configuration, described candidate collection comprises TDD configuration 1,2,3,4,5,6.
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