CN102420683A - Method and device for determining uplink HARQ (Hybrid Automatic Repeat Request) process combination - Google Patents
Method and device for determining uplink HARQ (Hybrid Automatic Repeat Request) process combination Download PDFInfo
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Abstract
The invention discloses a method and device for determining an uplink HARQ (Hybrid Automatic Repeat Request) process combination. The method comprises the following steps of: selecting uplink HARQ process combination matched with a preset parameter in all uplink HARQ process combinations of a relay link, wherein the preset parameter comprises any one or more of a complete uplink HARQ process time HARQ RTT (Round-Trip Time) repetition period, HARQ RTT time delay, an HARQ process number, and an HARQ RTT type. By the method of the invention, a problem of overlarge combination number and increased complexness of a system can be solved.
Description
Technical field
The present invention relates to the communications field, in particular to the definite method and the device of the automatic repeat requests HARQ process combination of a kind of up mixing.
Background technology
LTE-A (Long Term Evolution Advanced; Senior long evolving system) introduces RN (Relay Node in; Via node) increased new link afterwards; Corresponding term comprises: the link between base station eNode-B (being called for short eNB) and the RN is called backhaullink (back haul link or repeated link), RN and UE (User Equipment; Subscriber equipment) link that the link between is called between access link (access link), eNode-B and the UE is called direct link (link direct transfers), and concrete system configuration sketch map sees also Fig. 1.In adopting band during relaying inband-relay, eNode-B to relay link and relay to the UE link operation on identical frequency resource.But; Because the inband-relay launching opportunity produces interference (disturbing certainly) to the receiver of oneself; So eNode-B on identical frequency resource is impossible with relay simultaneously to the UE link to the relay link, only if enough Signal Separation and isolation between antennas are arranged.Similar, relay also can not launch to eNode-B when receiving the data that UE launched again.The solution of a possible transmitting-receiving interference problem is to make relay when the data that receive from eNode-B; Do not carry out firing operation to UE; That is to say at relay and behind the UE link, need to increase time slot " gap "; Through configuration MBSFN subframe (Multicast Broadcast Single Frequency Network subframe; The Multicast Broadcast Single Frequency Network subframe) is used for backhaul subframe, make UE in " gap " time range, not carry out any reception/firing operation, and Relay accomplishes the switching that is transmitted into reception in " gap " time range; Receive data at OFDM (Orthogonal Frequency Division Multiplex, OFDM) symbol at the back after switching completion from eNB.In LTE, adopt MBSFN subframe to be used for backhaul subframe at present; Its concrete mode is: MCE (MBMS Control Entity; The multimedia controlled entity) at first to the available MBSFNsubframe of eNode-B configuration, eNode-B is the available backhaul subframe of configuration in these available MBSFN subframe again.
Referring to Fig. 2, can find out, according to present LTE (Long Term Evolution; Long evolving system) regulation in, 1 10ms radio frames frame is made up of the subframe subframe of 10 1ms, comprises several OFDM symbols among each subframe subframe; Comprise Unicast (clean culture) and Multicast Broadcast (multicast and broadcast), wherein when FDD (Frequency Division Duplex, FDD) mode; #0, #5 subframe be as the emission synchronizing signal, and #4, #9 subframe are as paging paging paging, at TDD (Time Division Duplex; Time division duplex) during mode, #0, #5 subframe be as the emission synchronizing signal, and #1, #6 subframe are as paging paging; That is to say for FDD{#0, #4, #5, #9} subframe; TDD{#0, #1, #5, #6} subframe have above-mentioned special purpose, so can not be used for the distribution of MBSFN subframe, promptly assignable MBSFN subframe is at most 6 sub-frame subframe in 1 radio frames frame.
In the LTE system, need set up HARQ (Hybrid Automatic Repeat Request mixes automatic repeat requests) process and carry out corresponding feedback for the transmission of data between subscriber equipment and the base station.Receive the data of subscriber equipment when the base station after; The base station generates downlink feedback information (being meant confirmed/non-confirmed ACK/NACK:Acknowledgement/Negative Acknowledgement) according to the decoding situation or uplink authorization information ULgrant (mainly comprises NDI (New Data Indicator; The new data indication), MCS (Modulation and Coding Scheme; Modulation and Coding Scheme), RA (Resource Allocation; Resource allocation) information such as), and with the descending subscriber equipment that sends to of said information.Subscriber equipment is for further processing according to the information that receives, if receive ACK or NDI=1 or 0, then continues the new data of transmission, then will on identical HARQ process, resend data to the base station in NACK or NDI=0 or 1 if receive.
That is to say that repeated link can not use FDD{#4, #8, #9, #3} sub-frame of uplink accordingly because can not use FDD{#0, #4, #5, #9} descending sub frame.Design for ascending HARQ at present mainly comprises the following sub-frame of uplink combination of only using 8ms or 16ms multiple; Promptly suppose in the 40ms scope; 8 set of descending sub frame comprise { (#7#23#31), (#6#22#38), (#13#21#37), (#12#28#36), (#3#11#27), (#2#18#26), (#1#17#33), (#8#16#32) }; Corresponding 8 set of sub-frame of uplink comprise { (#11#27#35), (#10#26#42), (#17#25#41), (#16#32#40), (#7#15#31), (#6#22#30), (#5#21#37), (#12#20#36) }; Wherein in computational process, can ask modular arithmetic to " 40 " greater than the subframe of " 40 "; Mod (42,40)=2 for example.In fact, 1 corresponding 1 sub-frame of uplink set of descending sub frame set is also just said from following sub-frame of uplink set on the whole, totally 8 following sub-frame of uplink set, and the situation that then different set is combined comprises 8 a powers combination (i.e. 256 combinations) of 2 altogether.The ascending HARQ course number that different combinations is corresponding different, and 256 number of combinations are too big, this will increase the complexity of system.
Concrete, index of set is as shown in table 1, but is not limited to said corresponding relation between set and the index of set.The bit map bitmap mode that 8 bits are just arranged when carrying out sub-frame allocation, promptly the corresponding different respectively index of set of the binary system of 8bits has also just obtained sub-frame configuration as long as receiving terminal has obtained index of set.
Table 1
| Index of set | Following row set | Last row set |
| 0 | (#7#23#31) | (#11#27#35) |
| 1 | (#6#22#38) | (#10#26#42) |
| 2 | (#13#21#37) | (#17#25#41) |
| 3 | (#12#28#36) | (#16#32#40) |
| 4 | (#3#11#27) | (#7#15#31) |
| 5 | (#2#18#26) | (#6#22#30) |
| 6 | (#1#17#33) | (#5#21#37) |
| 7 | (#8#16#32) | (#12#20#36) |
Concrete; The HARQ process number of 256 combined situation correspondences is as shown in table 2; What wherein the combining and configuring in the 1st row was used is the decimal system; For example the binary system of 8bits of " 170 " expression be " 10101010 ", representes that then index of set is that set of " 7 ", " 5 ", " 3 ", " 1 " correspondence is combined.
Table 2
DL subframe number=10*SFN+DL subframe index wherein
UL?subframe?number＝10*SFN+UL?subframe?index
Wherein, SFN representes System Frame Number System Frame Number;
The index of 10 subframe that DL subframe index representes to comprise among 1 frame, its scope is (#0, #1, #2, #3, #4, #5, #6, #7, #8, #9);
The index of 10 subframe that UL subframe index representes to comprise among 1 frame, its scope is (#0, #1, #2, #3, #4, #5, #6, #7, #8, #9).
Too big to number of combinations in the correlation technique, the problem of the complexity of increase system does not propose effective solution at present as yet.
Summary of the invention
Main purpose of the present invention is to provide a kind of definite method and device of HARQ process combination, and is too big to solve combinations thereof quantity at least, increases the problem of the complexity of system.
According to an aspect of the present invention, a kind of definite method of HARQ process combination is provided, has comprised:
In all ascending HARQ course combinations of repeated link, select the ascending HARQ course combination that is complementary with parameter preset;
Wherein, said parameter preset comprises following any one or multinomial combination: 1 complete HARQ RTT repetition period ascending HARQ course time, HARQ RTT time delay, HARQ process number and HARQ RTT type.
More excellent, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and comprising: the ascending HARQ course combination of selecting to have the identical HARQ RTT repetition period.
More excellent, the said HARQ RTT repetition period is the integral multiple of 10ms or 40ms.
More excellent, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and comprising:
Select in said all ascending HARQ courses combination the data re-transmission average delay less than the ascending HARQ course combination of time delay threshold value; Perhaps
The k secondary data retransmits the ascending HARQ course combination of average delay less than said time delay threshold value before selecting in said all ascending HARQ course combinations, and wherein, k equals data re-transmission number of times in the 40ms time range.
More excellent, said k=1 or k=2 or k=3 or k=4.
More excellent, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and comprising: be chosen in the maximum or minimum ascending HARQ course combination of HARQ process number in the set time scope.
More excellent, said set time scope be following one of arbitrarily: the preceding 8 sub-frame time ranges of every 40ms; The back 8 sub-frame time ranges of every 40ms; The preceding 1 sub-frame time range of every 40ms, back 7 sub-frame time ranges; The preceding 7 sub-frame time ranges of every 40ms, back 1 sub-frame time range; The preceding 9 sub-frame time ranges of every 40ms; Perhaps, the back 9 sub-frame time ranges of every 40ms; The preceding 1 sub-frame time range of every 40ms, back 8 sub-frame time ranges; The preceding 8 sub-frame time ranges of every 40ms, back 1 sub-frame time range.
More excellent, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and comprising: the ascending HARQ course combination of selecting HARQ process number and the interior set number of corresponding HARQ process combination to equate.
More excellent, the numerical value of the set number in said HARQ process number and the corresponding HARQ process combination all belong to 0,1,2,3,4,5,6,7,8}.
More excellent, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and comprising: selecting HARQ process number is the ascending HARQ course combination of even number or odd number.
More excellent, when selecting HARQ process number to be the ascending HARQ course combination of even number, said HARQ process number be 0,1,2,3,4,5,6,7, any even number among the 8};
When selecting HARQ process number to be the ascending HARQ course combination of odd number, said HARQ process number be 0,1,2,3,4,5,6,7, any odd number among the 8}.
More excellent, select the ascending HARQ course combination that is complementary with parameter preset, comprising: select HARQ process number less than equal or greater than smaller or equal to or more than or equal to the ascending HARQ course combination of the first process threshold value.
More excellent, the said first process threshold value be 0,1,2,3,4,5,6,7, the arbitrary number among the 8}.
More excellent, select the ascending HARQ course combination that is complementary with parameter preset, comprising: be chosen in HARQ process number in the set time scope less than equal or greater than smaller or equal to or more than or equal to the ascending HARQ course combination of the second process threshold value.
More excellent, the said second process threshold value be 0,1,2,3,4,5,6,7, the arbitrary number among the 8}.
More excellent, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and comprising: selecting HARQ RTT type is the ascending HARQ course combination of fixed value or variable value.
More excellent, after the ascending HARQ course combination of selecting to be complementary, also comprise: the state that keeps non-selected ascending HARQ course combination with parameter preset; Perhaps
Adding HARQ RTT is the ascending HARQ course combination of the downlink or uplink set formation of 8ms, 16ms or 10ms.
More excellent, after the ascending HARQ course combination of selecting to be complementary, also comprise: in the ascending HARQ course combination of having selected, select any one or more subclass to constitute new ascending HARQ course combination with parameter preset.
According to an aspect of the present invention, a kind of definite device of HARQ process combination is provided, has comprised:
Memory cell is used to store parameter preset, and said parameter preset comprises following any one or multinomial combination: HARQ RTT repetition period, HARQ RTT time delay, HARQ process number and HARQ RTT type;
Selected cell is used for all the ascending HARQ course combinations at repeated link, selects the ascending HARQ course combination that is complementary with said parameter preset.
More excellent, said selected cell is used to select to have the ascending HARQ course combination of identical HARQ RTT repetition period.
More excellent, said selected cell is used for:
Select in said all ascending HARQ courses combination the data re-transmission average delay less than the ascending HARQ course combination of time delay threshold value; Perhaps
The k secondary data retransmits the ascending HARQ course combination of average delay less than said time delay threshold value before selecting in said all ascending HARQ course combinations, and wherein, k equals data re-transmission number of times in the 40ms time range.
More excellent, said selected cell is used to be chosen in the maximum or minimum ascending HARQ course combination of HARQ process number in the set time scope.
More excellent, said selected cell is used to select the equal ascending HARQ course combination of the interior set number of HARQ process number and corresponding HARQ process combination.
More excellent, it is the ascending HARQ course combination of even number or odd number that said selected cell is used to select HARQ process number.
More excellent, said selected cell be used to select HARQ process number less than equal or greater than smaller or equal to or more than or equal to the ascending HARQ course combination of the first process threshold value.
More excellent, said selected cell be used to be chosen in HARQ process number in the set time scope less than equal or greater than smaller or equal to or more than or equal to the ascending HARQ course combination of the second process threshold value.
More excellent, it is the ascending HARQ course combination of fixed value or variable value that said selected cell is used to select HARQ RTT type.
More excellent, also comprise:
Stick unit is used to keep the state that non-selected ascending HARQ course makes up;
Adding device is used to add the ascending HARQ course combination that HARQ RTT is the downlink or uplink set formation of 8ms, 16ms or 10ms.
The method that adopts the embodiment of the invention to provide; Utilize parameter preset that all ascending HARQ course combinations of repeated link are selected; The ascending HARQ course of selecting to be complementary with parameter preset makes up, thereby can reduce the number of ascending HARQ course combination, and then reduces the complexity of system.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the system configuration sketch map of introducing among the LTE-A that provides of correlation technique after the RN;
Fig. 2 is the structural representation of the radio frames that provides of correlation technique;
Fig. 3 is the flow chart of definite method of the ascending HARQ course combination that provides of the embodiment of the invention;
Fig. 4 is HARQ RTT that the embodiment of the invention the provides HARQ process sketch map when being 40ms;
Fig. 5 is the HARQ process sketch map of the process number that provides of the embodiment of the invention when equating with corresponding set number;
Fig. 6 is that the interpolation HARQ RTT that the embodiment of the invention provides is the descending of 8ms or 16ms and/or goes up the HARQ process sketch map of the combination of row set formation;
Fig. 7 is that the interpolation HARQ RTT that the embodiment of the invention provides is the descending of 10ms and/or goes up the HARQ process sketch map of the combination of row set formation;
Fig. 8 is first kind of structural representation of definite device of the ascending HARQ course combination that provides of the embodiment of the invention;
Fig. 9 is second kind of structural representation of definite device of the ascending HARQ course combination that provides of the embodiment of the invention.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
In correlation technique, mention, in the LTE system, need set up the HARQ process and carry out corresponding feedback or transfer of data for the transmission of data between subscriber equipment and the base station; But the number of combinations that the ascending HARQ course combined method of using in the correlation technique generates is too big; This will increase the complexity of system, and for solving the problems of the technologies described above, the embodiment of the invention provides a kind of definite method of ascending HARQ course combination; Be applied in the system as shown in Figure 1; Wherein, be connected through the link that direct transfers between user terminal and the base station, be connected through back haul link between base station and via node; Be connected through access link between via node and user terminal, concrete handling process is as shown in Figure 3:
Step 302, parameter preset is set; Wherein, Parameter preset comprises following any one or multinomial combination: HARQ RTT (Hybrid Automatic Repeat Request Round Trip Time; 1 complete up hybrid automatic repeat request process time) repetition period, HARQ RTT time delay, HARQ process number and HARQ RTT type;
Step 304, in all ascending HARQ courses combination of repeated link, select the ascending HARQ course combination that is complementary with parameter preset.
Adopt flow process as shown in Figure 3; Utilize parameter preset that all ascending HARQ course combinations of repeated link are selected; The ascending HARQ course of selecting to be complementary with parameter preset makes up, thereby can reduce the number of ascending HARQ course combination, and then reduces the complexity of system.
Step 304 is when implementing; The ascending HARQ course combination of selecting to be complementary with parameter preset can be according to the different multiple choices modes that exist of parameter preset; For example; In one embodiment, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and can select to have the ascending HARQ course combination of identical HARQ RTT repetition period.Wherein, the HARQ RTT repetition period can be the time value of any appointment, and more excellent, the HARQ RTT repetition period is the integral multiple of 10ms or 40ms, for example, and 10ms, 80ms, 120ms or the like.
Again for example, in one embodiment, select the ascending HARQ course combination that is complementary with parameter preset, can select in all ascending HARQ courses combinations the data re-transmission average delay less than the ascending HARQ course combination of time delay threshold value; Perhaps, select in the combination of all ascending HARQ courses before the k secondary data retransmit the ascending HARQ course combination of average delay less than the time delay threshold value, wherein, k equals data re-transmission number of times in the 40ms time range.More excellent, k can take off any one value of row: k=1 or k=2 or k=3 or k=4.
Also for example, in one embodiment, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and can be chosen in the maximum or minimum ascending HARQ course combination of HARQ process number in the set time scope.More excellent, the set time scope be following one of arbitrarily: the preceding 8 sub-frame time ranges of every 40ms; The back 8 sub-frame time ranges of every 40ms; The preceding 1 sub-frame time range of every 40ms, back 7 sub-frame time ranges; The preceding 7 sub-frame time ranges of every 40ms, back 1 sub-frame time range; The preceding 9 sub-frame time ranges of every 40ms; Perhaps, the back 9 sub-frame time ranges of every 40ms; The preceding 1 sub-frame time range of every 40ms, back 8 sub-frame time ranges; The preceding 8 sub-frame time ranges of every 40ms, back 1 sub-frame time range.
Again for example, in one embodiment, the ascending HARQ course combination that selection and parameter preset are complementary can select HARQ process number and corresponding HARQ process to make up the ascending HARQ course combination that interior set number equates.More excellent, the numerical value of the set number in HARQ process number and the corresponding HARQ process combination all belong to 0,1,2,3,4,5,6,7,8}.
Again for example, in one embodiment, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and can select HARQ process number is the ascending HARQ course combination of even number or odd number.More excellent, when selecting HARQ process number to be the ascending HARQ course combination of even number, HARQ process number be 0,1,2,3,4,5,6,7, any even number among the 8}; When selecting HARQ process number to be the ascending HARQ course combination of odd number, HARQ process number be 0,1,2,3,4,5,6,7, any odd number among the 8}.
Again for example, select the ascending HARQ course combination that is complementary with parameter preset, can select HARQ process number less than equal or greater than smaller or equal to or more than or equal to the ascending HARQ course combination of the first process threshold value.More excellent, the first process threshold value be 0,1,2,3,4,5,6,7, the arbitrary number among the 8}.
Again for example; In one embodiment; Select the ascending HARQ course combination that is complementary with parameter preset, can be chosen in HARQ process number in the set time scope less than equal or greater than smaller or equal to or more than or equal to the ascending HARQ course combination of the second process threshold value.More excellent, the second process threshold value be 0,1,2,3,4,5,6,7, the arbitrary number among the 8}.
Again for example, in one embodiment, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and can select HARQ RTT type is the ascending HARQ course combination of fixed value or variable value.
In one embodiment, after the ascending HARQ course combination of selecting to be complementary, can also comprise: the state that keeps non-selected ascending HARQ course combination with parameter preset; Perhaps, add the ascending HARQ course combination that HARQ RTT is the downlink or uplink set formation of 8ms, 16ms or 10ms.
In one embodiment, after the ascending HARQ course combination of selecting to be complementary, can also comprise: in the ascending HARQ course combination of having selected, select any one or more subclass to constitute new ascending HARQ course combination with parameter preset; That is, in the combination of having selected, select any subset all can constitute new combination,, reduce the complexity of system further to reduce the number of ascending HARQ course combination.
In embodiments of the present invention, after the ascending HARQ course combination of selecting to be complementary, utilize the ascending HARQ course of selecting to be combined in the transmission of carrying out data between subscriber equipment, via node and the base station with parameter preset.
Definite method that the existing ascending HARQ course that the embodiment of the invention is provided with several specific embodiments makes up describes.
Instance one: the HARQ RTT repetition period is 40ms
(RTT was expressed as the 1st time and was transferred to the time interval of the 2nd re-transmission, or retransmits to the time interval of the 3rd re-transmission for the 2nd time, by that analogy) 1 the complete ascending HARQ course time of repeated link.Be chosen in that (as shown in table 2) has the new HARQ process combination of constituting of identical HARQ RTT repetition period in the combination of all possible HARQ process this moment.
The HARQ RTT repetition period is meant that HARQ RTT has periodically, and is as shown in Figure 4, has 6 processes in the 1st 40ms, and the most mostly is to have retransmitted 3 times in the time at 40ms, and the periodicity that the 2nd 40ms is the 1st 40ms repeats.
Concrete, the HARQ RTT repetition period is that combination and the corresponding HARQ process number of 40ms is as shown in the table.
Table three
Instance two: average delay is less than the time delay thresholding
Be chosen in the combination of all possible HARQ process the data re-transmission average delay this moment less than the new HARQ process combination of constituting of time delay thresholding.
Concrete, average delay is as shown in the table less than the combination of time delay thresholding and corresponding HARQ process number.
Table four
Instance three: process is maximum in the set time scope
Be chosen in this moment be fixed in the combination of all possible HARQ process HARQ process number in preceding 8 or the preceding 9 sub-frame time ranges maximum constitute new HARQ process combination.
Concrete, the HARQ process number that is fixed on maximum combination of the interior HARQ process number of preceding 8 sub-frame time ranges and correspondence is as shown in the table.(following row set is benchmark, in preceding 8 sub-frame time ranges, searches the descending sub frame number)
Table five
Concrete, the HARQ process number that is fixed on maximum combination of the interior HARQ process number of preceding 9 sub-frame time ranges and correspondence is as shown in the table.(following row set is benchmark, in preceding 9 sub-frame time ranges, searches the descending sub frame number)
Table six
Concrete, it is as shown in the table to be fixed on maximum combination of HARQ process number in preceding 8 or the preceding 9 sub-frame time ranges and corresponding HARQ process number.(above row set is benchmark, in preceding 8 or preceding 9 sub-frame time ranges, searches the sub-frame of uplink number)
Table six
Instance four: the process number equates with corresponding set number
Being chosen in HARQ process number (supposing to be designated as m) in the combination of all possible HARQ process this moment makes up with the equal new HARQ process that constitutes of set number (supposing to be designated as n) in the corresponding combination.Suppose that m and n are respectively 0,1,2,3,4,5,6.
Process is counted m and corresponding set when counting n and equating, the HARQ process of repeated link (Un link) is minimum to the HARQ process influence of access link (Uu link), and the HARQ process number of the HARQ process number that can guarantee the Un link and Uu link and be " 8 ".Referring to sketch map shown in Figure 5, the HARQ process number of Un link is 5, has influenced 0,1,5,6 of Uu link respectively, 7 processes, and promptly the HARQ process number of Un link equates with the process number that it influences the Uu link; The HARQ process number of Uu link is 3, respectively 2,3,4 processes of corresponding Uu link.
Concrete, process counts that combination that n equates is counted in m and corresponding set and corresponding HARQ process number is as shown in the table.
Table seven
Instance five: the process number is smaller or equal to specific integer, promptly less than the first process threshold value
Be chosen in this moment HARQ process number in the combination of all possible HARQ process smaller or equal to the first process threshold value L corresponding constitute new HARQ process combination.Suppose L=4.
Concrete, the process number is as shown in the table smaller or equal to 4 combination and corresponding HARQ process number.
Table eight
Instance six: HARQ RTT is a variable value
Be chosen in HARQ RTT in the combination of all possible HARQ process this moment and be variable value corresponding constitute new HARQ process combination.
Concrete, HARQ RTT is that the combination and the corresponding HARQ process number of variable value is as shown in the table.
Table nine
Instance seven: by 2 kinds of said parameter preset decisions
The combination of the ascending HARQ course of repeated link is by the HARQ RTT repetition period, and/or by HARQ RTT time delay, and/or maximum or minimum by the HARQ process number that is fixed in the regular time scope, and/or determined by HARQ process number.By multiple factor decision combination essence is that multiple factor is confirmed combination respectively; The common factor of getting combination afterwards constitutes new combination; Here only 2 parameter presets wherein are illustrated (the HARQ RTT repetition period is 40ms, and HARQ process number is smaller or equal to " 4 ").
Concrete, the HARQ RTT repetition period is 40ms, and HARQ process number is smaller or equal to " 4 ") combination and corresponding HARQ process number as shown in the table.
Table ten
Instance eight: the corresponding state of combination keeps, or adds other combinations
Referring to instance four; The number of combinations that wherein satisfies condition is 209; The number of combinations theoretical value is 256; The number of combinations that does not then meet instance four restrictive conditions is 47, and the corresponding state of these 47 combinations this moment keeps, or interpolation HARQ RTT is the descending of 8ms or 16ms or 10ms and/or goes up the combination that row set constitutes.
Concrete; For describing, the combining and configuring decimal system " 255 " is 47 theoretical combinations in the combination that does not meet restrictive condition with the combining and configuring decimal system " 255 " for we, and the binary system that the combining and configuring decimal system " 255 " is corresponding is " 11111111 "; Then this binary condition keeps; Wait until the later release communication system and use, so that the upgrading of system, the versatility of increase system; Or interpolation HARQ RTT as shown in Figure 6 is the descending of 8ms or 16ms and/or the upward combination of row set formation, is that example describes with process 0, and its 3 times the corresponding RTT of re-transmission is respectively 16ms, 16ms, 8ms; Or interpolation HARQRTT as shown in Figure 7 is the descending of 10ms and/or the upward combination of row set formation, is that example describes with process 1, and the RTT of its 4 times re-transmission correspondences is 10ms, 10ms, 10ms, 10ms respectively.
Instance nine: select any subset of combination all to can be used as new combination.
Referring to instance four, the number of combinations that wherein satisfies condition is 209, and the subclass of said 209 combinations can be used as new combination, shown in the table specific as follows, removes the combination (totally 208 combinations) that combining and configuring 0 forms.
Table ten one
Based on same inventive concept, the embodiment of the invention also provides definite device of the automatic repeat requests HARQ process combination of a kind of up mixing, and concrete structure is as shown in Figure 8, comprising:
In one embodiment, selected cell 802 can be used to select to have the ascending HARQ course combination of identical HARQ RTT repetition period.
In one embodiment, selected cell 802 can be used for selecting the ascending HARQ course combination of all ascending HARQ course combination data re-transmission average delays less than the time delay threshold value; Perhaps, select in the combination of all ascending HARQ courses before the k secondary data retransmit the ascending HARQ course combination of average delay less than the time delay threshold value, wherein, k equals data re-transmission number of times in the 40ms time range.
In one embodiment, selected cell 802 can be used to be chosen in the maximum or minimum ascending HARQ course combination of HARQ process number in the set time scope.
In one embodiment, selected cell 802 can be used to select the equal ascending HARQ course combination of the interior set number of HARQ process number and corresponding HARQ process combination.
In one embodiment, can be used to select HARQ process number be the ascending HARQ course combination of even number or odd number to selected cell 802.
In one embodiment, selected cell 802 can be used to select HARQ process number less than equal or greater than smaller or equal to or more than or equal to the ascending HARQ course combination of the first process threshold value.
In one embodiment, selected cell 802 can be used to be chosen in HARQ process number in the set time scope less than equal or greater than smaller or equal to or more than or equal to the ascending HARQ course combination of the second process threshold value.
In one embodiment, can be used to select HARQ RTT type be the ascending HARQ course combination of fixed value or variable value to selected cell 802.
In one embodiment, as shown in Figure 9, definite device of ascending HARQ course combination can also comprise:
Adding device 902 is used to add the ascending HARQ course combination that HARQ RTT is the downlink or uplink set formation of 8ms, 16ms or 10ms.
From above description, can find out that the present invention has realized following technique effect:
In the above-described embodiments; Utilize parameter preset that all ascending HARQ course combinations of repeated link are selected; The ascending HARQ course of selecting to be complementary with parameter preset makes up, thereby can reduce the number of ascending HARQ course combination, and then reduces the complexity of system.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (28)
1. definite method of the automatic repeat requests HARQ process combination of up mixing is characterized in that, comprising:
In all ascending HARQ course combinations of repeated link, select the ascending HARQ course combination that is complementary with parameter preset;
Wherein, said parameter preset comprises following any one or multinomial combination: 1 complete HARQ RTT repetition period ascending HARQ course time, HARQRTT time delay, HARQ process number and HARQ RTT type.
2. method according to claim 1 is characterized in that, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and comprising: the ascending HARQ course combination of selecting to have the identical HARQRTT repetition period.
3. method according to claim 2 is characterized in that, the said HARQ RTT repetition period is the integral multiple of 10ms or 40ms.
4. method according to claim 1 is characterized in that, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and comprising:
Select in said all ascending HARQ courses combination the data re-transmission average delay less than the ascending HARQ course combination of time delay threshold value; Perhaps
The k secondary data retransmits the ascending HARQ course combination of average delay less than said time delay threshold value before selecting in said all ascending HARQ course combinations, and wherein, k equals data re-transmission number of times in the 40ms time range.
5. method according to claim 4 is characterized in that, said k=1 or k=2 or k=3 or k=4.
6. method according to claim 1 is characterized in that, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and comprising: be chosen in the maximum or minimum ascending HARQ course combination of HARQ process number in the set time scope.
7. method according to claim 6 is characterized in that, said set time scope be following one of arbitrarily: the preceding 8 sub-frame time ranges of every 40ms; The back 8 sub-frame time ranges of every 40ms; The preceding 1 sub-frame time range of every 40ms, back 7 sub-frame time ranges; The preceding 7 sub-frame time ranges of every 40ms, back 1 sub-frame time range; The preceding 9 sub-frame time ranges of every 40ms; Perhaps, the back 9 sub-frame time ranges of every 40ms; The preceding 1 sub-frame time range of every 40ms, back 8 sub-frame time ranges; The preceding 8 sub-frame time ranges of every 40ms, back 1 sub-frame time range.
8. method according to claim 1 is characterized in that, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and comprising: the ascending HARQ course combination of selecting HARQ process number and the interior set number of corresponding HARQ process combination to equate.
9. method according to claim 8 is characterized in that, the numerical value of the set number in said HARQ process number and the corresponding HARQ process combination all belong to 0,1,2,3,4,5,6,7,8}.
10. method according to claim 1 is characterized in that, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and comprising: selecting HARQ process number is the ascending HARQ course combination of even number or odd number.
11. method according to claim 10 is characterized in that,
When selecting HARQ process number to be the ascending HARQ course combination of even number, said HARQ process number be 0,1,2,3,4,5,6,7, any even number among the 8};
When selecting HARQ process number to be the ascending HARQ course combination of odd number, said HARQ process number be 0,1,2,3,4,5,6,7, any odd number among the 8}.
12. method according to claim 1; It is characterized in that; Select the ascending HARQ course combination that is complementary with parameter preset, comprising: select HARQ process number less than equal or greater than smaller or equal to or more than or equal to the ascending HARQ course combination of the first process threshold value.
13. method according to claim 12 is characterized in that, the said first process threshold value be 0,1,2,3,4,5,6,7, the arbitrary number among the 8}.
14. method according to claim 1; It is characterized in that; Select the ascending HARQ course combination that is complementary with parameter preset, comprising: be chosen in HARQ process number in the set time scope less than equal or greater than smaller or equal to or more than or equal to the ascending HARQ course combination of the second process threshold value.
15. method according to claim 14 is characterized in that, the said second process threshold value be 0,1,2,3,4,5,6,7, the arbitrary number among the 8}.
16. method according to claim 1 is characterized in that, the ascending HARQ course of selecting to be complementary with parameter preset makes up, and comprising: selecting HARQ RTT type is the ascending HARQ course combination of fixed value or variable value.
17. according to each described method of claim 1 to 16, it is characterized in that, after the ascending HARQ course combination of selecting to be complementary, also comprise: the state that keeps non-selected ascending HARQ course combination with parameter preset; Perhaps
Adding HARQ RTT is the ascending HARQ course combination of the downlink or uplink set formation of 8ms, 16ms or 10ms.
18. according to each described method of claim 1 to 16; It is characterized in that; After the ascending HARQ course combination of selecting to be complementary, also comprise: in the ascending HARQ course combination of having selected, select any one or more subclass to constitute new ascending HARQ course combination with parameter preset.
19. definite device of the automatic repeat requests HARQ process combination of up mixing is characterized in that, comprising:
Memory cell is used to store parameter preset, and said parameter preset comprises following any one or multinomial combination: HARQ RTT repetition period, HARQ RTT time delay, HARQ process number and HARQ RTT type;
Selected cell is used for all the ascending HARQ course combinations at repeated link, selects the ascending HARQ course combination that is complementary with said parameter preset.
20. device according to claim 19 is characterized in that, said selected cell is used to select to have the ascending HARQ course combination of identical HARQ RTT repetition period.
21. device according to claim 19 is characterized in that, said selected cell is used for:
Select in said all ascending HARQ courses combination the data re-transmission average delay less than the ascending HARQ course combination of time delay threshold value; Perhaps
The k secondary data retransmits the ascending HARQ course combination of average delay less than said time delay threshold value before selecting in said all ascending HARQ course combinations, and wherein, k equals data re-transmission number of times in the 40ms time range.
22. device according to claim 19 is characterized in that, said selected cell is used to be chosen in the maximum or minimum ascending HARQ course combination of HARQ process number in the set time scope.
23. device according to claim 19 is characterized in that, said selected cell is used to select the equal ascending HARQ course combination of the interior set number of HARQ process number and corresponding HARQ process combination.
24. device according to claim 19 is characterized in that, it is the ascending HARQ course combination of even number or odd number that said selected cell is used to select HARQ process number.
25. device according to claim 19 is characterized in that, said selected cell be used to select HARQ process number less than equal or greater than smaller or equal to or more than or equal to the ascending HARQ course combination of the first process threshold value.
26. device according to claim 19; It is characterized in that, said selected cell be used to be chosen in HARQ process number in the set time scope less than equal or greater than smaller or equal to or more than or equal to the ascending HARQ course combination of the second process threshold value.
27. device according to claim 19 is characterized in that, it is the ascending HARQ course combination of fixed value or variable value that said selected cell is used to select HARQ RTT type.
28. according to each described device of claim 19 to 27, it is characterized in that, also comprise:
Stick unit is used to keep the state that non-selected ascending HARQ course makes up;
Adding device is used to add the ascending HARQ course combination that HARQ RTT is the downlink or uplink set formation of 8ms, 16ms or 10ms.
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