CN102739379B - Data transmission method and equipment - Google Patents
Data transmission method and equipment Download PDFInfo
- Publication number
- CN102739379B CN102739379B CN201210192138.7A CN201210192138A CN102739379B CN 102739379 B CN102739379 B CN 102739379B CN 201210192138 A CN201210192138 A CN 201210192138A CN 102739379 B CN102739379 B CN 102739379B
- Authority
- CN
- China
- Prior art keywords
- data transmission
- transmission set
- process number
- time delay
- maximum process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 394
- 238000000034 method Methods 0.000 title claims abstract description 306
- 230000008569 process Effects 0.000 claims abstract description 250
- 238000012545 processing Methods 0.000 claims abstract description 101
- 238000012546 transfer Methods 0.000 claims description 61
- 238000011144 upstream manufacturing Methods 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 10
- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 description 29
- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 description 29
- 230000007246 mechanism Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 11
- 101100465000 Mus musculus Prag1 gene Proteins 0.000 description 10
- 230000033228 biological regulation Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 230000011664 signaling Effects 0.000 description 7
- 230000001174 ascending effect Effects 0.000 description 6
- 238000010295 mobile communication Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 101150077548 DCI1 gene Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a data transmission method and data transmission equipment. The method comprises the following steps that: when distance between the data transmission equipment and an opposite end of the data transmission equipment is greater than a distance threshold value, the data transmission equipment acquires the maximum process number of a hybrid automatic repeat request which is employed for data transmission, wherein the maximum process number of the hybrid automatic repeat request is obtained according to the data processing time delay of the data transmission equipment, the data processing time delay of the opposite end of the data transmission equipment and the distance between the data transmission equipment and the opposite end of the data transmission equipment; and the data transmission equipment transmits data to the opposite end of the data transmission equipment according to the maximum process number of the hybrid automatic repeat request. The technical scheme provided by the invention is applicable to a large-coverage scene of which cell radius is more than 100 km, and can effectively ensure data transmission efficiency under the condition of large coverage.
Description
Technical field
The embodiment of the present invention relates to mobile communication technology field, particularly a kind of data transmission method and equipment.
Background technology
In cell mobile communication systems, current mobile communication technology has combined OFDM (Orthogonal Frequency Division Multiplexing; And multiple-input and multiple-output (Multiple-Input Multiple-Out-put OFDM); MIMO) Long Term Evolution (Long Term Evolution; LTE) key technology.LTE R8 technology can realize user throughput, spectrum efficiency and mobility and reach third generation partner program (3rd Generation Partnership Project respectively; International standard demand 3GPP), namely realizes instantaneous peak value speed and meets 100Mbit/s(spectrum efficiency 5bit/s/Hz under 20M bandwidth), the design object of the instantaneous upstream peak speed (peaks spectrum efficiency 2.5bit/s/Hz) of 50MHz.At covering radius, (covering radius is that distance between transfer of data two ends is as base station (evolved Node Base to these mobile communication demands; ENodeB; Can eNB be called for short further) and subscriber equipment (User Equipment; UE) distance between) can meet completely when being no more than 5 kilometers, when covering radius is no more than 30 kilometers, performance index decline or obviously decline, and realize when UE can support that it covers when covering radius is 100 kilometers.This demand can meet the demand of current general land mobile.
In order to realize LTE transfer of data, hybrid automatic repeat-request (Hybrid Automatic Repeat Request; HARQ) mechanism is that it ensures one of critical function of link circuit self-adapting transmission.In LTE system, because up-downgoing adopts the maximum process number of identical HARQ, general, transmission delay depends on the distance between eNB and UE.In LTE system, usual regulation UE processing delay Trx is the coding/multiplexing that 3ms(comprises downlink data decoding and upstream data) and eNB processing delay Ttx be that 3ms(comprises upstream data and decodes and the coding/multiplexing of downlink data).Such as, for eNB, namely from receiving data to carrying out confirming (Acknowledge; ACK)/deny (Negative ACKnowledgment; NACK) feedback between minimum interval and be all 3ms from receiving feedback information to the minimum interval carried out next time data dispatch, i.e. 3 subframe lengths.Frequency Division Duplexing (FDD) (Frequency Division Duplexing; FDD) in system, the transmission in any one direction is all continuous print, always can in fixing subframe, carry out data re-transmission or ACK/NACK feedback signaling occur.In FDD system, considered the problem of performance and complexity, comprised the demand of different delay sensitive traffic, eNB processing delay and UE processing delay etc., even number process can with discontinuous reception (Discontinuous Reception; DRX) reason of the aspect such as pattern alignment, determines that the maximum process number of HARQ is 8 processes, winding time (Round Trip Time; RTT) be 8ms.
But, mobile communication not only has demand at general scene, also have in the movable spatial domain of such as civil aircraft, the demand of the application scenarios such as the high speed main line of communication such as marine site, magnetic suspension train, high-speed railway of steamer and drilling platforms, these demands are all that future network covers indispensable part.And the different demands of these typical application scenarioss have a common feature, it is exactly the solution first needing to propose reasonably to meet large covering radius demand, such as meet more than 100 kilometers, in 200 kilometers of situations, even need the demand reaching good performance index.LTE system at this time belongs to and typically covers constrained system.Such as can get the distance threshold that these 100 kilometers are prior art.
Simple computation is carried out for large coverage cell propagation delay time situation, such as when radius of society is 200 kilometers, because wireless transmission delay depends on that transfer of data two ends are as the distance between eNB and UE, calculate with 6.7 μ s/km, the minimal time delay of 200 kilometers is: 200km is multiplied by 6.7 μ s/km and equals 1340 μ s, i.e. 1.34ms.When eNB issues Physical Downlink Shared Channel (Physical Downlink Shared Channel; PDSCH) during data, through 1.34ms arrive UE, the UE minimum treat time be 3ms, UE the fastest at 4.34ms time feed back, after feedback again through wireless transmission time delay 1.34ms arrive base station, the minimum treat time of base station is 3ms.Can find out according to time delay budget and altogether at least need 8.68ms, and the maximum process number of HARQ is 8 processes in FDD situation, the maximum winding time that can support is 8ms, so, under the conditions of demand of this large covering, total propagation delay time has exceeded the total capacity of system.Therefore, the large coverage condition being greater than the distance threshold of prior art based on the HARQ maximum process number data transmission method distance that cannot be applicable between transfer of data two ends that is 8 of prior art, needs badly and provides a kind of distance be applicable between transfer of data two ends to be greater than the data transmission scheme of the distance threshold of prior art.
Summary of the invention
Embodiments provide a kind of data transmission method and equipment, to make up the deficiencies in the prior art, provide a kind of distance be applicable between transfer of data two ends to be greater than the data transmission scheme of the distance threshold of prior art.
For achieving the above object, the embodiment of the present invention have employed following technical scheme:
Embodiments provide a kind of data transmission method, comprising:
When distance between data transmission set and the opposite end of data transmission set is greater than distance threshold, described data transmission set obtains the maximum process number of the hybrid automatic repeat-request that performing data transmission adopts, and the maximum process number of described hybrid automatic repeat-request obtains according to the distance between the data processing time delay of described data transmission set, the data processing time delay of the opposite end of described data transmission set and the opposite end of described data transmission set and described data transmission set;
Described data transmission set carries out transfer of data according to the maximum process number of described hybrid automatic repeat-request and the opposite end of described data transmission set.
The embodiment of the present invention additionally provides a kind of data transmission set, and described equipment comprises:
Maximum process number acquiring unit, when being greater than distance threshold for the distance between data transmission set and the opposite end of data transmission set, obtain the maximum process number of the hybrid automatic repeat-request that performing data transmission adopts, the maximum process number of described hybrid automatic repeat-request obtains according to the distance between the data processing time delay of described data transmission set, the data processing time delay of the opposite end of described data transmission set and the opposite end of described data transmission set and described data transmission set;
Data transmission unit, carries out transfer of data for the maximum process number of hybrid automatic repeat-request that obtains according to described maximum process number acquiring unit and the opposite end of described data transmission set.
The beneficial effect of the embodiment of the present invention is:
The embodiment of the present invention is by adopting technique scheme, can the distance between data transmission set and the opposite end of data transmission set when being greater than distance threshold, namely under large covering scene, the maximum process number of the HARQ adopted is obtained according to the distance between data transmission set and the opposite end of data transmission set, and carry out transfer of data, to realize the transfer of data under a kind of large covering scene according to the maximum process number of the HARQ obtained.The technical scheme of the embodiment of the present invention, can solve can not supporting to realize the problem of transfer of data under large overlay area realizing transfer of data according to HARO mechanism under large covering scene by permissible delay of existing system.
The technical scheme of the embodiment of the present invention, is applicable to the large covering scene that covering radius is greater than 100 kilometers (as 200 kilometers).Further, the technical scheme of the embodiment of the present invention, carries out transfer of data according to the maximum process number of the HARQ obtained, effectively can ensure the data transmission efficiency under large coverage condition.
Accompanying drawing explanation
Fig. 1 is HARQ transmission time diagram on up direction;
Fig. 2 is HARQ transmission time diagram on down direction;
Fig. 3 is the ascending HARQ process schematic that radius of society is less than 100 kilometers;
Fig. 4 is the descending HARQ procedure flow chart that radius of society is less than 100 kilometers;
The flow chart of the data transmission method that Fig. 5 provides for the embodiment of the present invention one;
The radius of society that Fig. 6 provides for the embodiment of the present invention two is transmitting uplink data signaling process schematic diagram during large covering;
Fig. 7 for radius of society that the embodiment of the present invention two provides be cover greatly time ascending HARQ process schematic diagram;
The radius of society that Fig. 8 provides for the embodiment of the present invention three is downlink data transmission signaling process schematic diagram during large covering;
Fig. 9 for radius of society that the embodiment of the present invention three provides be cover greatly time descending HARQ process schematic diagram;
The data transmission set structural representation that Figure 10 provides for the embodiment of the present invention four;
The data transmission set structural representation that Figure 11 provides for the embodiment of the present invention five.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
In LTE system, no matter be that UE carries out service access, or UE is in up-downgoing business, because the time-varying characteristics of wireless channel and multipath fading signal transmit the impact brought, and some uncertain interference, can cause Signal transmissions failure, current is continuity, the correctness of being guaranteed up-downgoing business by HARQ mechanism.Thisly the link adaptation mechanism of error correction can be limited to the processing time of UE, the processing time of eNB and the wireless signal time RTT in wireless air environment round-trip transmission.Wherein RTT is limited to the network coverage, namely the size of radius of society.
In order to the technical scheme of various embodiments of the present invention is clearly described, the transmission time sequence of HARQ is introduced.See Fig. 1, show the transmission time sequence schematic diagram of HARQ on FDD LTE R8/R9 system uplink direction.HARQ comprises 8 maximum process numbers, and the maximum process number of HARQ is determined by RTT, can be expressed as follows for the maximum process number of FDD, HARQ:
For descending, wherein, T
dataand T
ackfor the time that data send and ACK/NACK feeds back, be respectively 1 subframe T
sf; T
pfor the propagation delay of eNB to UE; T
rXfor the processing time of UE, comprise decoding etc.; T
tXfor the processing delay of eNB.
See Fig. 2, show the transmission time sequence schematic diagram of HARQ on FDD LTE R8/R9 system descending direction.Uplink and downlink adopt identical HARQ process number usually.
The concrete data transmission procedure of up direction and down direction is described below:
Up direction
On up direction, data transmission set is UE, and the opposite end of data transmission set is eNB.See Fig. 3, show the up (UpLink that radius of society (i.e. covering radius) is less than 100 kilometers; UL) HARQ procedure schematic diagram.In LTE, UL HARQ adopts the HARQ mode of synchronous non-self-adapting.
1:eNB sends (Physical Downlink Control CHannel at subframe n1; PDCCH) control information of transfer of data, this control information is including, but not limited to Downlink Control Information (Downlink Control Information; DCI) 0;
2: above-mentioned control information arrives UE through certain downstream propagation delay, UE receives and processes DCI0 in official hour, and according to the schedule information of DCI0, carry out the group bag of upstream data, send redundancy versions 0(RV0 at the moment subframe n1+k of regulation) new Physical Uplink Shared Channel (Physical Uplink Shared Channe; PUSCH) data.In scene shown in Fig. 3, k value is 4, and namely the subframe of predetermined delivery time is the 4th subframe from eNB sends DCI0.
3: above-mentioned PUSCH data delay to reach eNB through certain uplink, eNB receives the upstream data PUSCH processing UE in official hour, passes through Physical HARQ Indicator Channel (Physical HARQ Indicator CHannel at the moment n2 of regulation; PHICH) the ACK/NACK information of transmission last time is fed back to UE.
4:PHICH information arrives UE through certain downstream propagation delay, UE carries out solution reconciliation process to the ACK/NACK information in PHICH in official hour, and according to ACK/NACK information, complete the preparation of data retransmission, send data retransmission (PUSCH data) at the up delivery time n2+4 of regulation;
5:eNB receives the upstream data PUSCH processing UE in official hour, is fed back at the moment n3+k of regulation the ACK/NACK information transmitted last time by PHICH to UE.The like when base station feedback be ACK time, as shown on the right side of dotted line in Fig. 4, a HARQ process terminates.
Down direction
On down direction, data transmission set is eNB, and the opposite end of data transmission set is UE.Descending (DownLink in LTE; DL) HARQ adopts asynchronous adaptive HARQ mode, and see Fig. 4, process when covering radius is less than 100 kilometers comprises:
1:eNB sends Physical Downlink Shared Channel (Physical Downlink Shared CHannel at subframe n1; PDSCH) data;
2:PDSCH data receive through the arrival of certain downstream propagation delay UE, UE and process PDSCH data, the moment subframe n1+k(k=4 in regulation in official hour) send the ACK/NACK information (illustrating to feed back nack message in Fig. 4) fed back.
3: above-mentioned ACK/NACK information delays to reach eNB through certain uplink, eNB receive the up ACK/NACK information processing UE in official hour, and when for nack message, eNB sends at the moment subframe n2 of regulation and retransmits PDSCH data.
4:UE receives and processes PDSCH in official hour, sends the ACK/NACK information of feedback at subframe n2+4.The like, when UE feedback be ACK time, a HARQ process terminates.
Therefore, mobile communication under large coverage condition design demand fulfillment ensure link long distance is large cover transmission time required perfect HARQ flow process, to ensure the correct realization of LTE technology under large coverage condition.This just the embodiment of the present invention technical scheme be devoted to one of main purpose of realizing.
See Fig. 5, be the data transmission method that the embodiment of the present invention one provides, specifically can comprise the steps:
51: when the distance between data transmission set and the opposite end of data transmission set is greater than distance threshold, data transmission set obtains the maximum process number of the HARQ that performing data transmission adopts.
The maximum process number of the HARQ in the present embodiment obtains according to the data processing time delay of data transmission set, the data processing time delay of the opposite end of data transmission set and the distance between data transmission set and the opposite end of data transmission set.
Such as, above-mentioned distance threshold in the present embodiment be support existing 8 process HARQ UE and eNB between ultimate range, as 100km.When distance between UE and eNB does not exceed this distance threshold, can process according to existing HARQ mechanism; When distance between UE and eNB exceeds this distance threshold, total transmission data time postpone a meeting or conference exceed system support maximum delay, at this moment, the technical scheme data transmission set of the present embodiment is utilized to obtain the maximum process number of the HARQ that performing data transmission adopts.Wherein the maximum process number of HARQ obtains according to the data processing time delay of data transmission set, the data processing time delay of the opposite end of data transmission set and the distance between data transmission set and the opposite end of data transmission set; And the data processing time delay of the data processing time delay of data transmission set, the opposite end of data transmission set can be preset.Distance between data transmission set and the opposite end of data transmission set can be got by data transmission set, and the technical scheme of the present embodiment does not obtain the spacing of the opposite end of data transmission set and data transmission set to data transmission set concrete mode at this limits.
52: data transmission set carries out transfer of data according to the maximum process number of HARQ and the opposite end of data transmission set.
The data transmission method distance be applicable between data transmission set and the opposite end of data transmission set of the present embodiment is greater than the scene of distance threshold, and this scene also can be referred to as large covering scene.And the data transmission scheme comprising the HARQ mechanism of 8 processes of prior art cannot transfer of data greatly under covering scene, therefore the maximum process number of the HARQ that data transmission set is adopted by the performing data transmission obtained under this large covering scene in the present embodiment, and carry out transfer of data based on the maximum process number of this HARQ and the opposite end of data transmission set.
Therefore, the present embodiment is by adopting technique scheme, can the distance between data transmission set and the opposite end of data transmission set when being greater than distance threshold, namely under large covering scene, the maximum process number of the HARQ adopted is obtained according to the distance between data transmission set and the opposite end of data transmission set, and carry out transfer of data, to realize the transfer of data under a kind of large covering scene according to the maximum process number of the HARQ obtained.The technical scheme of the present embodiment, can solve can not supporting to realize the problem of transfer of data under large overlay area realizing transfer of data according to HARO mechanism under large covering scene by permissible delay of existing system.
The technical scheme of the present embodiment, is applicable to the large covering scene that covering radius is greater than 100 kilometers (as 200 kilometers).Further, the technical scheme of the present embodiment, carries out transfer of data according to the maximum process number of the HARQ obtained, effectively can ensure the data transmission efficiency under large coverage condition, but also can be good at compatible existing wireless system.
Alternatively, on above-mentioned basis embodiment illustrated in fig. 5, " data transmission set obtains the maximum process number of the HARQ that performing data transmission adopts " in step 51 wherein specifically can realize in the following way: data transmission set obtains the maximum process number of HARQ according to the data processing time delay of the data processing time delay of data transmission set, the opposite end of data transmission set and the distance between data transmission set and the opposite end of data transmission set.Which i.e. the corresponding maximum process number being carried out computed HARQ by data transmission set; Wherein the data processing time delay of the data processing time delay of data transmission set, the opposite end of data transmission set can for pre-setting.
Further, above-mentioned " data transmission set obtains the maximum process number of HARQ according to the data processing time delay of the data processing time delay of data transmission set, the opposite end of data transmission set and the distance between data transmission set and the opposite end of data transmission set " specifically can comprise the steps:
(1) data transmission set obtains propagation delay time according to the distance between data transmission set and the opposite end of data transmission set;
Propagation delay time in the present embodiment can think the general designation of propagation delay time 1 and propagation delay time 2.Propagation delay time 1 sends data to the time needed for the opposite end of data transmission set for data transmission set, and the opposite end that propagation delay time 2 is data transmission set sends data to the time needed for data transmission set.In practical application, can think that the numerical value of propagation delay time 1 and propagation delay time 2 is identical, namely be all the transmission time of data between data transmission set and the opposite end of data transmission set, therefore above-mentioned propagation delay time 1 and propagation delay time 2 unification can be referred to as propagation delay time.
(2) data transmission set obtains the first Time Delay Estimator corresponding to data transmission set according to the data processing time delay of propagation delay time and data transmission set;
Such as data transmission set can get the smallest positive integral of the data processing time delay sum being greater than propagation delay time and data transmission set as the first Time Delay Estimator; That is the first Time Delay Estimator is rounded up by the data processing time delay of propagation delay time and data transmission set and obtains.
(3) data transmission set obtains the second Time Delay Estimator corresponding to the opposite end of data transmission set according to the data processing time delay of the opposite end of propagation delay time and data transmission set;
Such as data transmission set gets the smallest positive integral of the data processing time delay sum of the opposite end being greater than propagation delay time and data transmission set as the second Time Delay Estimator.That is the second Time Delay Estimator is rounded up by the data processing time delay of the opposite end of propagation delay time and data transmission set and obtains.
(4) data transmission set obtains the maximum process number of HARQ according to the first Time Delay Estimator and the second Time Delay Estimator.
Such as this step (4) specifically can realize in the following way: the even number that is greater than the first Time Delay Estimator and the second Time Delay Estimator sum maximum process number as HARQ got by data transmission set.Because the maximum process number of HARQ is excessive, the application of delay sensitive business can be affected, cause a lot of real-time service flow and quality degradation.Further, when the maximum process number of HARQ is chosen for odd number, business cannot be mated under discontinuous reception scene; Under half-duplex scene, send out owing to there is a subframe, the situation that another subframe is received, also cause business to mate; Under FDD scene, also require that up-downgoing process number is equal, adopt the process number of odd number then cannot meet this requirement.Therefore, in the embodiment of the present invention, the minimum even number that is greater than the first Time Delay Estimator and the second Time Delay Estimator sum maximum process number as HARQ is preferably got.
It should be noted that, in LTE system, the data transmission set in above-described embodiment can be UE, and the opposite end of corresponding data transmission set can be eNB.Otherwise the data transmission set in above-described embodiment can also be eNB, the opposite end of corresponding data transmission set can also be UE.
The data processing time delay of the data processing time delay of above-mentioned data transmission set or the opposite end of data transmission set corresponds to UE processing delay Trx(in LTE system and comprises the coding of downlink data decoding and upstream data/multiplexing) or eNB processing delay Ttx(comprise upstream data and decode and the coding/multiplexing of downlink data).Such as, for eNB, when eNB is the opposite end of data transmission set, the data processing time delay of the opposite end of data transmission set i.e. eNB are from receiving data to the minimum interval carried out ACK/NACK feedback, when eNB is data transmission set, the data processing time delay of data transmission set is that eNB is from receiving feedback information to the minimum interval carried out next time data dispatch.For UE, when UE is data transmission set, the data processing time delay of data transmission set i.e. UE package to from the scheduling control commands receiving eNB and organize the minimum interval of the complete transmission data of bag, or, when UE is the opposite end of data transmission set, the data processing time delay of the opposite end of data transmission set is that UE is from receiving the data of eNB transmission to the minimum interval carried out ACK/NACK feedback.
Be appreciated that the technical scheme of the present embodiment can be applicable to propagation delay time 1 scene not identical with the numerical value of propagation delay time 2 equally.
Alternatively, when data transmission set is UE, the opposite end of data transmission set is eNB, above-mentioned embodiment illustrated in fig. 5 in step 51 in " data transmission set obtains the maximum process number of HARQ that performing data transmission adopts " specifically can also realize in the following way: UE receives the maximum process number of the HARQ that eNB sends, and the maximum process number of now corresponding HARQ is obtained according to the distance between the data processing time delay of eNB, the data processing time delay of UE and eNB and UE by eNB.Particularly, UE can receive eNB at Physical Downlink Control Channel (Physical Downlink Control Channel; PDCCH) upper Downlink Control Information (the Downlink Control Information sent; DCI), the maximum process number of HARQ is carried in DCI.It should be noted that, be compared with in the of 8 with the maximum process number of HARQ of the prior art herein, needs the figure place of the maximum process number revising the HARQ carried in DCI in the technical scheme of the present embodiment.Such as in time carrying the maximum process number 8 of HARQ of prior art in DCI, need at most 3bit just can realize, and when the maximum process number adopting this DCI to carry the HARQ of the present embodiment as 10 or be greater than 10 even number time, now at least need 4bit could realize the amendment of the maximum process number of HARQ in the embodiment of the present invention.
It should be noted that further, on the basis of the technical scheme of above-described embodiment, the data transmission method of the embodiment of the present invention, also comprise following technical scheme: when needs carry out semi-persistent scheduling, data transmission set is according to wireless heterogeneous networks (the Radio Resource Control of the maximum process number Update Table transmission equipment side of HARQ; RRC) the semi-persistent scheduling number of processes parameter in layer.In like manner, also need in the opposite end of data transmission set according to HARQ maximum process number Update Table transmission equipment to the semi-persistent scheduling number of processes parameter in the rrc layer of side, to ensure the consistent to the semi-persistent scheduling number of processes parameter of side of data transmission set and data transmission set, to ensure the Successful transmissions of data.It is UE that the program had both been applicable to data transmission set, and the opposite end of data transmission set is eNodeB, and being equally also applicable to data transmission set is eNodeUE, and the opposite end of data transmission set is UE.
It should be noted that further, on the basis of the technical scheme of above-described embodiment, the data transmission method of the embodiment of the present invention, also comprises following technical scheme: data transmission set is according to medium education (the Media Access Control of the maximum process number Update Table transmission equipment side of HARQ; MAC) HARQ winding time timer parameter in layer.In like manner, the opposite end of data transmission set also need according to HARQ maximum process number Update Table transmission equipment to the MAC layer of side in HARQ winding time timer parameter, to ensure the consistent to the semi-persistent scheduling number of processes parameter of side of data transmission set and data transmission set, to ensure the Successful transmissions of data.In like manner, it is UE that the program had also both been applicable to data transmission set, and the opposite end of data transmission set is eNB, and being equally also applicable to data transmission set is eNodeUE, and the opposite end of data transmission set is UE.
Further alternatively, on the basis of the technical scheme of above-described embodiment, above-mentioned embodiment illustrated in fig. 5 in step 51: " data transmission set carries out transfer of data according to the maximum process number of HARQ and the opposite end of data transmission set ", specifically can comprise: UE sends upstream data according to the maximum process number of HARQ to eNB, such as UE sends upstream data by PUSCH to eNB in the subframe that (maximum process number/2 of subframe n1+) are corresponding, and n1 is eNB sends DCI0 to UE subframe by PDCCH.Or can also comprise: UE is according to the maximum process number of HARQ to eNB feeding back ACK/NACK, and wherein this ACK/NACK is that the reception result of UE to the downlink data that eNB sends is made.Such as UE in the subframe that (maximum process number/2 of subframe n1+) are corresponding to eNB feeding back ACK/NACK, n1 be now eNB to send downlink data to UE subframe by PDSCH.In detail can with reference to the record of following embodiment.
By upper, the present embodiment is by adopting technique scheme, can the distance between data transmission set and the opposite end of data transmission set when being greater than distance threshold, namely under large covering scene, the maximum process number of the HARQ adopted is obtained according to the distance between data transmission set and the opposite end of data transmission set, and carry out transfer of data, to realize the transfer of data under a kind of large covering scene according to the maximum process number of the HARQ obtained.The technical scheme of the present embodiment, can solve can not supporting to realize the problem of transfer of data under large overlay area realizing transfer of data according to HARO mechanism under large covering scene by permissible delay of existing system.
The technical scheme of the present embodiment, is applicable to the large covering scene that covering radius is greater than 100 kilometers (as 200 kilometers).Further, the technical scheme of the present embodiment, carries out transfer of data according to the maximum process number of the HARQ obtained, effectively can ensure the data transmission efficiency under large coverage condition.
Be greater than 100km for the distance between terminal (as UE) and eNB below, be less than the scene of 200km and describe technical scheme of the present invention in detail, propagation delay time between eNB and UE calculates with 6.7 μ s/km, the UE minimum treat time is 3ms, the eNB minimum treat time is 3ms, namely the data processing time delay of terminal is 3ms, and the data processing time delay of base station is 3ms.
The method of the embodiment of the present invention, in ascending HARQ and descending HARQ, because having little time to process the information that eNB issues in the HARQ processing time that UE specifies, needs to consider the maximum number of processes of amendment HARQ, to adapt to large situation about covering.According to the calculating in background technology part, in order to meet large covering, when 200 kilometers of radius of societies, time delay is altogether needed to be 8.68ms, maximum process number according to the HARQ of prior art is 8, all when transmission data, may cannot ensure that data group bag is complete.Therefore be greater than 8.68ms situation and just can meet large 200 kilometers of radius of societies, when namely adopting more than 8 processes, just can adapt to 200 kilometers of radius of societies.Such as adopt the technique scheme of the embodiment of the present invention, adopt the minimum even number that is 10 being greater than 8, namely can ensure that it is complete that data can organize bag, effectively ensure that data transmission efficiency when transmission data.
The present embodiment calculates the maximum process number of adopted HARQ in the following way:
Data transmission set obtains propagation delay time according to the distance between data transmission set and the opposite end of data transmission set; Data transmission set obtains the first Time Delay Estimator corresponding to data transmission set according to the data processing time delay of propagation delay time and data transmission set; Data transmission set obtains the second Time Delay Estimator corresponding to the opposite end of data transmission set according to the data processing time delay of the opposite end of propagation delay time and data transmission set; Data transmission set obtains the maximum process number of HARQ according to the first Time Delay Estimator and the second Time Delay Estimator.
Wherein, data transmission set adopts the mode rounded up to obtain above-mentioned first Time Delay Estimator and the second Time Delay Estimator, namely data transmission set gets the smallest positive integral of the data processing time delay sum being greater than propagation delay time and data transmission set as the first Time Delay Estimator, and, get the smallest positive integral of the data processing time delay sum of the opposite end be greater than according to propagation delay time and data transmission set as the second Time Delay Estimator.
As preferred mode, for the scene of 200km, according to the first Time Delay Estimator and the second Time Delay Estimator, this programme determines that the maximum process number of adopted HARQ is:
expression rounds up, and wherein, each subframe in HARQ process is 1ms.At this, adopt the mode rounded up to remove the fractional part calculated and mainly consider that the transmitting-receiving of current data is in units of subframe.
Now system can tolerant of delay be 10ms.That is: the maximum process number of HARQ can be revised as L=1,2,3 ... 9,10.So analogize, if adopt more process, also can increase the adaptability of large coverage cell radius.
But the maximum process number of HARQ is excessive, can affect the application of delay sensitive business, causes a lot of real-time service flow and quality degradation.Further, when the maximum process number of HARQ is chosen for odd number, as 11, the situations such as 13, business cannot be mated under discontinuous reception (DRX) scene; Under half-duplex scene, send out owing to there is a subframe, the situation that another subframe is received, also cause business to mate; Under FDD scene, also require that up-downgoing process number is equal, adopt the maximum process number of the HARQ of odd number then cannot meet this requirement.For addressing these problems, the technical scheme of the embodiment of the present invention adopts the even number process number got and be greater than the first Time Delay Estimator and the second Time Delay Estimator sum as the maximum process number of HARQ, preferably, the embodiment of the present invention can choose the minimum even number that is greater than the first Time Delay Estimator and the second Time Delay Estimator sum maximum process number as HARQ.
Therefore, for the scene on a large scale of 200km, the maximum process number setting HARQ in the present embodiment is L=10.In protocol stack, there is a HARQ entity in each UE side, the maximum process number of the HARQ that each entity maintaining some walks abreast.
The technical scheme of the present embodiment, adopt the minimum even number being greater than the first Time Delay Estimator and the second Time Delay Estimator sum as the maximum process number of HARQ, on the one hand, under large covering scene, can ensure that UE on up direction processed control information that eNB issues before the subframe for sending data and group bag is complete, and on down direction UE for receiving the downlink data that eNB sends before sending ACK/NACK feedback information, thus the Successful transmissions of data under effectively ensure that large covering scene; On the other hand, farthest reduce the time needed for performing data transmission under HARQ mechanism, ensure that data transmission efficiency.
The signaling diagram of the data transmission method that Fig. 6 provides for the embodiment of the present invention two.The data transmission method of the present embodiment take data transmission set as UE, the opposite end of data transmission set is that eNB(can be abbreviated as eNB), the example that is transmitted as of upstream data introduces technical scheme of the present invention in detail, as shown in Figure 6, the data transmission method of the present embodiment, specifically can comprise the steps:
600, UE and eNB obtains the distance between UE and eNB respectively, and determines that this distance is greater than the distance threshold between UE and eNB;
In the present embodiment with the distance between UE and eNB for 200km, distance threshold is 100km.
When the spacing of UE and eNodB is less than or equal to the distance threshold between UE and eNB, conventionally can carry out transfer of data, the present embodiment repeats no more.The mode of the distance that UE and eNB obtains between UE and eNB is not respectively limited in the present embodiment, in detail can with reference to related art.
601, UE and eNB is respectively according to the maximum process number of the distance computed HARQ between UE and eNB of the data processing time delay of UE, the data processing time delay of eNB and acquisition;
Wherein the data processing time delay of UE and the data processing time delay of eNB can be set in advance in UE and eNB, such as, all can be set to 3ms.Wherein the mode of the maximum process number of UE and eNB difference computed HARQ with reference to the record of above-mentioned related embodiment, can not repeat them here.Such as with reference to the record of above-described embodiment, the distance between UE and eNB is 200km, and when distance threshold is 100km, the maximum process number that can calculate HARQ is 10.
The HRAQ RTTTimer parameter of each HARQ process 602, in UE and eNB difference modification of mac layer, and the semi-persistent scheduling configuration parameter in rrc layer;
Such as the HRAQ RTT Timer parameter of each HARQ process in MAC layer is revised as 10 subframes by original 8 subframes, the semi-persistent scheduling configuration parameter of rrc layer is revised as numberofconfsps-processesINTEGER (1..10) by numberofconfsps-processes INTEGER (1..8), and the amendment through above-mentioned parameter can ensure the Successful transmissions of data between UE and eNB.
603, eNB sends DCI0 by PDCCH to UE on subframe n1;
604, through certain propagation delay time, UE receives the DCI0 that eNB sends on subframe n1, and carries out demodulation to DCI0 in the data processing time delay of UE, therefrom obtains schedule information, and packages to upstream data according to schedule information;
605, UE sends upstream data by PUSCH to eNB according to the schedule information in DCI0 in subframe (maximum process number/2 of n1+HARQ);
Such as when the maximum process number of above-mentioned HARQ is that 10, UE sends upstream data by PUSCH to eNB according to the schedule information in DCI0 in subframe (n1+5).
606, pass through certain propagation delay time again, eNB receives the upstream data that UE sends, and the process after upstream data being received in the data processing time delay of eNB;
607, eNB according to result on subframe n2 by PHICH to UE feeding back ACK/nack message;
Wherein subframe n2 equals the maximum process number of n1+HARQ, and as in such scheme, n2 equals n1+10.
608, pass through certain propagation delay time again, UE receives the ACK/NACK information that eNB feeds back on subframe n2, and carries out demodulation to ACK/NACK information in the data processing time delay of UE;
609, UE sends upstream data by PUSCH to eNB according to ACK/NACK information in subframe (maximum process number/2 of n2+HARQ).
Wherein when eNB feedback be ACK information time, now a HARQ process terminates, and UE sends new upstream data by PUSCH to eNB according to ACK information in subframe (n2+5).Otherwise when eNB feedback be nack message time, UE retransmits the upstream data served time and transmit on subframe (n2+5) to eNB by PUSCH according to nack message.Then with reference to above-mentioned steps 606-609, until eNB feedback is ACK information, now a HARQ process terminates.
Further, for making the scheme of the present embodiment clearly, composition graphs 7 is described the Signalling exchange scene in Fig. 6 further, when radius of society be cover greatly time UL HARQ main interaction flow is described below:
1: in ascending HARQ situation, time radius of society is large covering, transmit (once new transfer of data) eNB for all new PDCCH and send the control signal DCI0 of new data transmission at subframe n1 to UE, this step corresponds to the step 603 in Fig. 6.
2:UE receives above-mentioned control signal DCI0, and the maximum process number of the HARQ adopted according to obtained performing data transmission sends upstream data to eNB, and this step corresponds to the step 605 in Fig. 6.
UE can adopt following two kinds of modes to obtain the maximum process number of HARQ:
Mode one, UE oneself calculate the maximum process number of adopted HARQ according to the first Time Delay Estimator and the second Time Delay Estimator.Namely UE calculates the maximum process number of HARQ according to the data processing time delay of data transmission set, the data processing time delay of the opposite end of data transmission set and the distance between data transmission set and the opposite end of data transmission set.The operation obtaining the maximum process number of HARQ under this mode can perform in step 601 in figure 6.
Mode two, UE receive the maximum process number of the HARQ that eNB sends, and the maximum process number of HARQ is that eNB obtains according to the data processing time delay of data transmission set, the data processing time delay of the opposite end of data transmission set and the distance between data transmission set and the opposite end of data transmission set.
Concrete, UE receives the DCI that base station sends on Physical Downlink Control Channel, carries the maximum process number of HARQ in DCI.Namely, after eNB calculates the maximum process number of HARQ, UE is informed by DCI.
The maximum process number of the HARQ that in the present embodiment, data transmission set obtains is 10, then UE is at the subframe n1+k(k=5 of regulation x time), the PUSCH data complete according to control signal group bag are sent to eNB by the subframe n1+5 that namely the first Time Delay Estimator (numerical value of the first Time Delay Estimator is 5) is corresponding.
The reason of this processing mode is adopted to be that time namely more than 100 kilometers, UE does not have time enough to package to new transmission data, therefore, will cause loss of data like this when UE distance eNB is far time.The present embodiment, by amendment process number, ensure that group bag is complete before UE needs to send the subframe of PUSCH data.
To UE, the technical scheme of the present embodiment does not judge whether that the complete concrete mode of group bag limits, such as, UE can by the data in buffer memory (buffr) are carried out detection know PUSCH data whether organize wrap complete.
3:eNB sends ACK/NACK message at subframe n2, and this step corresponds to above-mentioned steps 607;
ENB is at subframe n2(n1+10), the subframe that namely the second Time Delay Estimator (this numerical value is 5) is corresponding after the subframe n1+5 of data is received/sent out to last time sends HARQ feedback information.Note: the subframe that in each embodiment, the first Time Delay Estimator is corresponding or subframe corresponding to the second Time Delay Estimator mainly refer to receive/send out the subframe of data from upper one after through the subframe of the first Time Delay Estimator or the second Time Delay Estimator, if during by ordering of sub-frames numbering in HARQ, the numbering receiving/send out the subframe of data that is numbered of this subframe adds the first Time Delay Estimator or the second Time Delay Estimator.
After eNB receives PUSCH data, decoding judges whether correct, if correctly, sends ACK feedback, terminate this data transfer to UE.
If mistake, to UE send out NACK feedback, UE receives feedback, at x time n2+k(k=5) send data, if later process remain NACK will be similar with this method.If decoding correct judgment, sends out ACK to UE.HARQ procedure terminates.
It is to be noted that the subframe of UE maximum process number/2 correspondence of HARQ after the first subframe n1 in step 605 in the embodiment shown in fig. 6 sends upstream data to eNB, and, in step 607 eNB according to result on the maximum process number of subframe n1+HARQ by PHICH to UE feeding back ACK/nack message;
This mainly considers that the data processing time delay of current data transmission set is identical with the data processing time delay of the opposite end of data transmission set, the first Time Delay Estimator then calculated is also identical with the numerical value of the second Time Delay Estimator, thus the subframe that the subframe of maximum process number/2 correspondence of HARQ is corresponding with the first Time Delay Estimator after the subframe n1 receiving/send out data in last time after the first subframe n1 is consistent, the subframe that the maximum process number of HARQ is corresponding after the first subframe n1 received/sent out the subframe n1+5 of data with last time after subframe corresponding to the second Time Delay Estimator be consistent.
Further, the present embodiment eNB revises according to the maximum process number of determined HARQ the number of bits indicating HARQ process number in the DCI issued by PDCCH.Such as, in above HARQ procedure, according to the large requirement covered, after HARQ process number is increased to 10, need the bit number of the instruction HARQ of PDCCHDCI form to become 4 bits from 3 original bits, the realization of guarantee HARQ process number amendment.The DCI revised wherein is needed to comprise DCI1, DCI1A, DCI1B, DCI1D, DCI2, DCI2A, DCI2B and DCI2C.
The technical scheme of the present embodiment can be applied to etc. stops formula (Stop-and-wait; SAW) HARQ, N channel etc. stop formula HARQ, Selective resending formula (Selective-Repeat; SR) HARQ protocol.In Fig. 5, dotted arrow shows the data transfer mode that N channel etc. stops formula HARQ, and solid arrow shows the data transfer mode of above-mentioned steps 1-3.
From the above mentioned, the present embodiment is by adopting technique scheme, can the distance between data transmission set and the opposite end of data transmission set when being greater than distance threshold, namely under large covering scene, the maximum process number of the HARQ adopted is obtained according to the distance between data transmission set and the opposite end of data transmission set, and carry out transfer of data, to realize the transfer of data under a kind of large covering scene according to the maximum process number of the HARQ obtained.The technical scheme of the present embodiment, can solve can not supporting to realize the problem of transfer of data under large overlay area realizing transfer of data according to HARO mechanism under large covering scene by permissible delay of existing system.
The technical scheme of the present embodiment, is applicable to the large covering scene that covering radius is greater than 100 kilometers (as 200 kilometers).Further, the technical scheme of the present embodiment, carries out transfer of data according to the maximum process number of the HARQ obtained, effectively can ensure the data transmission efficiency under large coverage condition.
The signaling diagram of the data transmission method that Fig. 8 provides for the embodiment of the present invention three.The data transmission method of the present embodiment take data transmission set as UE, the opposite end of data transmission set is eNB, and the example that is transmitted as of downlink data introduces technical scheme of the present invention in detail, as shown in Figure 8, the data transmission method of the present embodiment, specifically can comprise the steps:
800, eNB obtains the distance between UE and eNB, and determines that this distance is greater than the distance threshold between UE and eNB;
In the present embodiment still with the distance between UE and eNB for 200km, distance threshold is 100km.This step can with reference to above-mentioned embodiment illustrated in fig. 6 in step 600, do not repeat them here.
801, eNB is according to the maximum process number of the distance computed HARQ between UE and eNB of the data processing time delay of UE, the data processing time delay of eNB and acquisition;
Wherein the data processing time delay of UE and the data processing time delay of eNB can pre-set in the enb, such as, all can be set to 3ms.Wherein the mode of the maximum process number of eNB computed HARQ with reference to the record of above-mentioned related embodiment, can not repeat them here.Such as with reference to the record of above-described embodiment, the distance between UE and eNB is 200km, and when distance threshold is 100km, the maximum process number that can calculate HARQ is 10.
802, eNB sends DCI by PDCCH to UE, carries the maximum process number of the HARQ that eNB calculates in this DCI; ENB informs the maximum process number of the current required HARQ adopted of UE by issuing above-mentioned DCI.
Wherein can learn that the maximum process number of the HARQ that eNB calculates in the present embodiment is 10 by step 801, be compared with in the of 8 with the maximum process number of HARQ in prior art, in the present embodiment, in DCI, indicate the bit of the maximum process number of HARQ to need to be revised as 4bit by 3bit.
803, UE receives the DCI that eNB sends, and therefrom obtains the maximum process number of HARQ;
804, with above-mentioned embodiment illustrated in fig. 6 in step 602 identical, in detail with reference to the record of above-described embodiment, repeat again at this.
805, eNB sends downlink data by PDSCH to UE on subframe n1;
806, through certain propagation delay time, UE receives the downlink data that eNB sends on subframe n1, and the process after downlink data being received in the data processing time delay of UE;
807, UE according to result in subframe (maximum process number/2 of n1+HARQ) to eNB feeding back ACK/nack message.
It should be noted that, in the present embodiment, consider that the data processing time delay of UE is identical with the data processing time delay of eNB.
Such as when the maximum process number of above-mentioned HARQ be 10, UE according to result in subframe (n1+5) to eNB feeding back ACK/nack message.
808, pass through certain propagation delay time again, eNB receives the ACK/NACK information of UE feedback, and carries out demodulation process to ACK/NACK information in the data processing time delay of eNB;
809, eNB sends downlink data by PUSCH to UE according to ACK/NACK information on subframe n2;
Wherein subframe n2 equals the maximum process number of n1+HARQ, and as in such scheme, n2 equals n1+10.
Wherein when UE feedback be ACK information time, now a HARQ process terminates, and eNB sends new downlink data to UE according to ACK information on subframe n2.Otherwise when UE feedback be nack message time, eNB retransmits the downlink data serving time transmission on subframe n2 to UE according to nack message.Then with reference to above-mentioned steps 806 and 807, until UE feedback is ACK information, now a HARQ process terminates.
Further, for making the scheme of the present embodiment clearly, composition graphs 9 is described the Signalling exchange scene in Fig. 8 further, when radius of society be cover greatly time DL HARQ main interaction flow is described below:
1: for descending HARQ, time radius of society is large covering, eNB sends downlink data at subframe n1 by PDSCH.According to the first Time Delay Estimator and the second Time Delay Estimator, eNB determines that the maximum process number of adopted HARQ is 10, this step corresponds to the step 805 in Fig. 8.
2: these PDSCH data arrive UE, UE through certain downstream propagation delay and also communicate with eNB according to the maximum process number (as 10) of determined HARQ, then at the second Time Delay Estimator, (this numerical value is UE
) corresponding subframe (n1+5) sends HARQ feedback information to the Physical Downlink Shared Channel PDSCH data received to eNB.This step corresponds to the step 806 and 807 in Fig. 8.
In scene shown in Fig. 9, UE and eNB calculates the maximum process number knowing adopted HARQ respectively, and does not adopt the mode of by DCI, the maximum process number of HARQ being informed UE in Fig. 8 by eNB.
This programme, by the amendment to the process number of HARQ, enables UE receive in the stipulated time and processes PDSCH, sends ACK/NACK information at feedback moment subframe n1+5.This change is very little on system configuration impact, does not almost affect buffer buffer memory.
The ACK/NACK information that 3:eNB feeds back according to UE carries out follow-up HARQ operation, and this step corresponds to the step 808 and 809 in Fig. 8.
Arranging of HARQ process number needs to ensure that eNB was disposed to HARQ feedback information before the subframe (n2) that the first Time Delay Estimator (if numerical value is 5) is corresponding, thus at subframe n2, when eNB according to result judge that UE feeds back be ACK time, a HARQ process terminates, when eNB according to result judge that UE feeds back be NACK time, send retransmission version PDSCH.
Further, the present embodiment also comprises maximum process number amendment medium education (the Media Access Control of data transmission set according to determined HARQ; MAC) HARQ winding time timer parameter in layer.Accordingly, be ensure the proper communication of communicating pair, the opposite end of data transmission set also needs HARQ winding time timer parameter in the maximum process number modification of mac layer according to determined HARQ.Such as, in above HARQ procedure, HARQ winding time timer (RTT Timer) parameter of each HARQ process in MAC layer is changed by original 8 subframes and is set as 10 subframes by the present embodiment.
Further, the present embodiment also comprises when needs carry out semi-persistent scheduling, and data transmission set needs process number amendment wireless heterogeneous networks (the Radio Resource Control according to determined HARQ; RRC) semi-persistent scheduling number of processes (numberofconfsps-processes) parameter in layer.Accordingly, for ensureing the proper communication of communicating pair, the opposite end of data transmission set also needs according to the numberofconfsps-processe parameter in the process number amendment rrc layer of determined HARQ such as, in above HARQ procedure, when needs carry out semi-persistent scheduling, the configuration of semi-persistent scheduling in RRC: IE SPS-Config parameter: numberofconfsps-processes INTEGER (1..8), needs to change to numberofconfsps-processes INTEGER (1..10).
The up-downgoing HARQ of the method for the present embodiment can the process of synchronous HARQ, asynchronous HARQ, adaptive HARQ and non-self-adapting HARQ that specifies in non-3 gpp standard of expanded application.Further, being applicable to of can simultaneously adopting this programme to provide according to actual needs large covers lower ascending HARQ mechanism and descending HARQ mechanism, or the ascending HARQ that also can only adopt this programme to provide is machine-processed and one in descending HARQ mechanism.
The method of the present embodiment is applied in LTE R8/R9 technology, also can expand in the system of the LTE-Advanced R10/R11 with carrier aggregation and apply.
The method of the present embodiment can be applied to the scene that stop-and-wait HARQ, N channel etc. stop formula HARQ, Selective resending formula HARQ.This method can expand in the system of the LTE-AdvancedR10/R11 of carrier aggregation and apply.
From the above mentioned, the present embodiment is by adopting technique scheme, can the distance between data transmission set and the opposite end of data transmission set when being greater than distance threshold, namely under large covering scene, the maximum process number of the HARQ adopted is obtained according to the distance between data transmission set and the opposite end of data transmission set, and carry out transfer of data, to realize the transfer of data under a kind of large covering scene according to the maximum process number of the HARQ obtained.The technical scheme of the present embodiment, can solve can not supporting to realize the problem of transfer of data under large overlay area realizing transfer of data according to HARO mechanism under large covering scene by permissible delay of existing system.
The technical scheme of the present embodiment, is applicable to the large covering scene that covering radius is greater than 100 kilometers (as 200 kilometers).Further, the technical scheme of the present embodiment, carries out transfer of data according to the maximum process number of the HARQ obtained, effectively can ensure the data transmission efficiency under large coverage condition.
Figure 10 is the structural representation of the data transmission set of the embodiment of the present invention, and as shown in Figure 10, the data transmission set of the present embodiment specifically can comprise: maximum process number acquiring unit 101 and data transmission unit 102.
When wherein maximum process number acquiring unit 101 is greater than distance threshold for the distance between data transmission set and the opposite end of data transmission set, obtain the maximum process number of the HARQ that performing data transmission adopts, the maximum process number of HARQ obtains according to the data processing time delay of data transmission set, the data processing time delay of the opposite end of data transmission set and the distance between data transmission set and the opposite end of data transmission set; Data transmission unit 102 is connected with maximum process number acquiring unit 101, and data transmission unit 102 carries out transfer of data for the maximum process number of HARQ that obtains according to maximum process number acquiring unit 101 and the opposite end of data transmission set.
The data transmission set of the present embodiment, identical with the realization mechanism of above-mentioned related method embodiment by adopting said units to realize transfer of data, the content can recorded with reference to above-mentioned related method embodiment in detail, does not repeat them here.
The present embodiment is by adopting technique scheme, can the distance between data transmission set and the opposite end of data transmission set when being greater than distance threshold, namely under large covering scene, the maximum process number of the HARQ adopted is obtained according to the distance between data transmission set and the opposite end of data transmission set, and carry out transfer of data, to realize the transfer of data under a kind of large covering scene according to the maximum process number of the HARQ obtained.The technical scheme of the present embodiment, can solve can not supporting to realize the problem of transfer of data under large overlay area realizing transfer of data according to HARO mechanism under large covering scene by permissible delay of existing system.
The technical scheme of the present embodiment, is applicable to the large covering scene that covering radius is greater than 100 kilometers (as 200 kilometers).Further, the technical scheme of the present embodiment, carries out transfer of data according to the maximum process number of the HARQ obtained, effectively can ensure the data transmission efficiency under large coverage condition.
The structural representation of the data transmission set that Figure 11 provides for the embodiment of the present invention five, as shown in figure 11, the data transmission set of the present embodiment, on above-mentioned basis embodiment illustrated in fig. 10, can also comprise following technical scheme:
As shown in figure 11, maximum process number acquiring unit 101 in the data transmission set of the present embodiment, when being greater than distance threshold specifically for the distance between data transmission set and the opposite end of data transmission set, obtain the maximum process number of HARQ according to the data processing time delay of the data processing time delay of data transmission set, the opposite end of data transmission set and the distance between data transmission set and the opposite end of data transmission set.
Alternatively, the maximum process number acquiring unit 101 in the data transmission set of the present embodiment specifically can comprise propagation delay time acquisition module 1111, first Time Delay Estimator acquisition module 1112, second Time Delay Estimator acquisition module 1113 and process number acquisition module 1114.
Wherein propagation delay time acquisition module 1111, for obtaining propagation delay time according to the distance between data transmission set and the opposite end of data transmission set; First Time Delay Estimator acquisition module 1112 is connected with propagation delay time acquisition module 1111, and the first Time Delay Estimator acquisition module 1112 obtains the first Time Delay Estimator corresponding to data transmission set for the data processing time delay of the propagation delay time that obtains according to propagation delay time acquisition module 1111 and data transmission set; Second Time Delay Estimator acquisition module 1113 is connected with propagation delay time acquisition module 1111, and the first Time Delay Estimator acquisition module 1112 obtains the second Time Delay Estimator corresponding to the opposite end of data transmission set for the data processing time delay of the opposite end of the propagation delay time that obtains according to propagation delay time acquisition module 1111 and data transmission set; Process number acquisition module 1114 is connected with the first Time Delay Estimator acquisition module 1112 and the second Time Delay Estimator acquisition module 1113 respectively, and process number acquisition module 1114 obtains the maximum process number of HARQ for the second Time Delay Estimator obtained according to the first Time Delay Estimator and the second Time Delay Estimator acquisition module 1113 of the first Time Delay Estimator acquisition module 1112 acquisition.
Concrete, process number acquisition module 1114 may be used for getting the even number that is greater than the first Time Delay Estimator and the second Time Delay Estimator sum maximum process number as HARQ.Concrete, the first Time Delay Estimator acquisition module 1112 may be used for getting the smallest positive integral of the data processing time delay sum being greater than propagation delay time and data transmission set as the first Time Delay Estimator; Second Time Delay Estimator acquisition module 1113, for getting the smallest positive integral of the data processing time delay sum of the opposite end be greater than according to propagation delay time and data transmission set as the second Time Delay Estimator, effectively can ensure data transmission success like this, effectively can also ensure the shortest time of a HARQ process data transmission, ensure the efficiency of transfer of data.
Further alternatively, the data transmission set of the present embodiment also comprises parameter modifying unit, this parameter modifying unit is used for when needs carry out semi-persistent scheduling, according to the semi-persistent scheduling number of processes parameter in the maximum process number amendment radio resource control layer of obtained HARQ.And/or this parameter modifying unit, revise HARQ winding time timer parameter in media access control layer for the maximum process number according to obtained HARQ.
Alternatively, when data transmission set in the present embodiment is subscriber equipment, when the opposite end of data transmission set is base station, be arranged on data transmission unit 102 in this subscriber equipment, upstream data is sent by Physical Uplink Shared Channel to base station in the subframe that the maximum process number of 1/2nd HARQ after the first subframe is corresponding, first subframe is that base station sends the subframe of Downlink Control Information to subscriber equipment, and, the HARQ feedback information that the subframe that the maximum process number for receiving the HARQ of base station after the first subframe is corresponding sends.
Now corresponding, maximum process number acquiring unit in subscriber equipment, specifically for receiving the maximum process number of the HARQ that base station sends, the maximum process number of HARQ is that base station obtains according to the data processing time delay of data transmission set, the data processing time delay of the opposite end of data transmission set and the distance between data transmission set and the opposite end of data transmission set.
Alternatively, the Downlink Control Information that the maximum process number acquiring unit 101 in the data transmission set of the present embodiment sends on Physical Downlink Control Channel specifically for receiving base station, carries the maximum process number of HARQ in Downlink Control Information.
Further alternatively, when data transmission set is base station, when the opposite end of data transmission set is subscriber equipment, data transmission unit 102 is in a base station set, specifically may be used for receiving the HARQ feedback information that subframe corresponding to the maximum process number of 1/2nd HARQs of subscriber equipment after the second subframe sends, second subframe is that base station sends the subframe of downlink data by Physical Downlink Shared Channel, and, in the subframe that the maximum process number of the HARQ after the second subframe is corresponding, send downlink data according to HARQ feedback information.
Each unit in the data transmission set of the present embodiment and and the module that the comprises specific works mode that realizes transfer of data and above-mentioned related method embodiment realize identical, see the related content in above-mentioned related method embodiment, can not repeat them here in detail.
From the above mentioned, the technical scheme of the present embodiment at least tool have the following advantages:
From the above mentioned, the present embodiment is by adopting technique scheme, can the distance between data transmission set and the opposite end of data transmission set when being greater than distance threshold, namely under large covering scene, the maximum process number of the HARQ adopted is obtained according to the distance between data transmission set and the opposite end of data transmission set, and carry out transfer of data, to realize the transfer of data under a kind of large covering scene according to the maximum process number of the HARQ obtained.The technical scheme of the present embodiment, can solve can not supporting to realize the problem of transfer of data under large overlay area realizing transfer of data according to HARO mechanism under large covering scene by permissible delay of existing system.
The technical scheme of the present embodiment, is applicable to the large covering scene that covering radius is greater than 100 kilometers (as 200 kilometers).Further, the technical scheme of the present embodiment, carries out transfer of data according to the maximum process number of the HARQ obtained, effectively can ensure the data transmission efficiency under large coverage condition.
These are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (12)
1. a data transmission method, is characterized in that, comprising:
When distance between data transmission set and the opposite end of data transmission set is greater than distance threshold, described data transmission set obtains the maximum process number of the hybrid automatic repeat-request that performing data transmission adopts, and the maximum process number of described hybrid automatic repeat-request obtains according to the distance between the data processing time delay of described data transmission set, the data processing time delay of the opposite end of described data transmission set and the opposite end of described data transmission set and described data transmission set;
Described data transmission set carries out transfer of data according to the maximum process number of described hybrid automatic repeat-request and the opposite end of described data transmission set;
Wherein, described data transmission set obtains the maximum process number of the hybrid automatic repeat-request that performing data transmission adopts, and comprising:
Described data transmission set obtains propagation delay time according to the distance between described data transmission set and the opposite end of described data transmission set;
Described data transmission set obtains the first Time Delay Estimator corresponding to described data transmission set according to the data processing time delay of described propagation delay time and described data transmission set;
Described data transmission set obtains the second Time Delay Estimator corresponding to the opposite end of described data transmission set according to the data processing time delay of the opposite end of described propagation delay time and described data transmission set;
Described data transmission set get be greater than described first Time Delay Estimator and described second Time Delay Estimator sum even number as the maximum process number of described hybrid automatic repeat-request.
2. method according to claim 1, is characterized in that, described data transmission set obtains the first Time Delay Estimator corresponding to described data transmission set according to the data processing time delay of described propagation delay time and described data transmission set, comprising:
Described data transmission set gets the smallest positive integral of the data processing time delay sum being greater than described propagation delay time and described data transmission set as described first Time Delay Estimator;
Described data transmission set obtains the second Time Delay Estimator corresponding to the opposite end of described data transmission set according to the data processing time delay of the opposite end of described propagation delay time and described data transmission set, comprising:
Described data transmission set gets the smallest positive integral of the data processing time delay sum of the opposite end being greater than described propagation delay time and described data transmission set as described second Time Delay Estimator.
3. the method according to any one of claim 1 to 2, is characterized in that, described method also comprises at least one step following:
When needs carry out semi-persistent scheduling, described data transmission set is according to the semi-persistent scheduling number of processes parameter in the maximum process number amendment radio resource control layer of described hybrid automatic repeat-request; With
Described data transmission set is according to hybrid automatic repeat-request winding time timer parameter in the maximum process number amendment media access control layer of described hybrid automatic repeat-request.
4. the method according to any one of claim 1 to 2, it is characterized in that, when described data transmission set is subscriber equipment, the opposite end of described data transmission set is base station, described data transmission set carries out transfer of data according to the maximum process number of described hybrid automatic repeat-request and the opposite end of described data transmission set, comprising:
The subframe that the maximum process number of 1/2nd hybrid automatic repeat-request of described subscriber equipment after the first subframe is corresponding sends upstream data by Physical Uplink Shared Channel to described base station, and described first subframe is that base station sends the subframe of Downlink Control Information to subscriber equipment;
Described subscriber equipment receives the hybrid automatic repeat request feedback information that subframe corresponding to the maximum process number of the hybrid automatic repeat-request of described base station after the first subframe sends;
Or when described data transmission set is base station, the opposite end of described data transmission set is subscriber equipment, described data transmission set carries out transfer of data according to the maximum process number of described hybrid automatic repeat-request and the opposite end of described data transmission set, comprising:
Described base station receives the hybrid automatic repeat request feedback information that subframe corresponding to the maximum process number of 1/2nd hybrid automatic repeat-request of described subscriber equipment after the second subframe sends, and described second subframe is that base station sends the subframe of downlink data by Physical Downlink Shared Channel;
The subframe that the maximum process number of the hybrid automatic repeat-request of described base station after described second subframe is corresponding sends downlink data according to described hybrid automatic repeat request feedback information.
5. method according to claim 1, it is characterized in that, when described data transmission set is subscriber equipment, the opposite end of described data transmission set is base station; Described data transmission set obtains the maximum process number of the hybrid automatic repeat-request that performing data transmission adopts, comprise: described subscriber equipment receives the maximum process number of the described hybrid automatic repeat-request that described base station sends, and the maximum process number of described hybrid automatic repeat-request is that described base station obtains according to the distance between the data processing time delay of described data transmission set, the data processing time delay of the opposite end of described data transmission set and the opposite end of described data transmission set and described data transmission set.
6. method according to claim 5, is characterized in that, described subscriber equipment receives the maximum process number of the described hybrid automatic repeat-request that described base station sends, and comprising:
Described subscriber equipment receives the Downlink Control Information that described base station sends on Physical Downlink Control Channel, carries the maximum process number of described hybrid automatic repeat-request in described Downlink Control Information.
7. a data transmission set, is characterized in that, described equipment comprises:
Maximum process number acquiring unit, when being greater than distance threshold for the distance between described data transmission set and the opposite end of data transmission set, obtain the maximum process number of the hybrid automatic repeat-request that performing data transmission adopts, the maximum process number of described hybrid automatic repeat-request obtains according to the distance between the data processing time delay of described data transmission set, the data processing time delay of the opposite end of described data transmission set and the opposite end of described data transmission set and described data transmission set;
Data transmission unit, carries out transfer of data for the maximum process number of hybrid automatic repeat-request that obtains according to described maximum process number acquiring unit and the opposite end of described data transmission set;
Wherein, described maximum process number acquiring unit comprises propagation delay time acquisition module, the first Time Delay Estimator acquisition module, the second Time Delay Estimator acquisition module and process number acquisition module;
Described propagation delay time acquisition module, for obtaining propagation delay time according to the distance between described data transmission set and the opposite end of described data transmission set;
Described first Time Delay Estimator acquisition module, for obtaining the first Time Delay Estimator corresponding to described data transmission set according to the data processing time delay of described propagation delay time and described data transmission set;
Described second Time Delay Estimator acquisition module, the data processing time delay for the opposite end according to described propagation delay time and described data transmission set obtains the second Time Delay Estimator corresponding to the opposite end of described data transmission set;
Described process number acquisition module, specifically for get be greater than described first Time Delay Estimator and described second Time Delay Estimator sum even number as the maximum process number of described hybrid automatic repeat-request.
8. equipment according to claim 7, is characterized in that:
Described first Time Delay Estimator acquisition module, specifically for getting the smallest positive integral of the data processing time delay sum being greater than described propagation delay time and described data transmission set as described first Time Delay Estimator;
Described second Time Delay Estimator acquisition module, specifically for getting the smallest positive integral of the data processing time delay sum of the opposite end be greater than according to described propagation delay time and described data transmission set as described second Time Delay Estimator.
9. the equipment according to any one of claim 7 to 8, is characterized in that, described equipment also comprises parameter modifying unit;
Described parameter modifying unit, for when needs carry out semi-persistent scheduling, according to the semi-persistent scheduling number of processes parameter in the maximum process number amendment radio resource control layer of described hybrid automatic repeat-request; And/or
Described parameter modifying unit, revises hybrid automatic repeat-request winding time timer parameter in media access control layer for the maximum process number according to described hybrid automatic repeat-request.
10. the equipment according to any one of claim 7 to 8, it is characterized in that, when described data transmission set is subscriber equipment, the opposite end of described data transmission set is base station, described data transmission unit, specifically for the subframe that the maximum process number of 1/2nd hybrid automatic repeat-request after the first subframe is corresponding sends upstream data by Physical Uplink Shared Channel to described base station, described first subframe is that base station sends the subframe of Downlink Control Information to subscriber equipment; And the hybrid automatic repeat request feedback information that subframe corresponding to the maximum process number receiving the hybrid automatic repeat-request of described base station after the first subframe sends;
Or when described data transmission set is base station, the opposite end of described data transmission set is subscriber equipment, described data transmission unit, specifically for the hybrid automatic repeat request feedback information that the subframe that the maximum process number receiving 1/2nd hybrid automatic repeat-request of described subscriber equipment after the second subframe is corresponding sends, described second subframe is that base station sends the subframe of downlink data by Physical Downlink Shared Channel; And subframe corresponding to the maximum process number of hybrid automatic repeat-request after described second subframe sends downlink data according to described hybrid automatic repeat request feedback information.
11. equipment according to claim 7, is characterized in that, when described data transmission set is subscriber equipment, the opposite end of described data transmission set is base station; Described maximum process number acquiring unit, specifically for receiving the maximum process number of the described hybrid automatic repeat-request that described base station sends, the maximum process number of described hybrid automatic repeat-request is that described base station obtains according to the distance between the data processing time delay of described data transmission set, the data processing time delay of the opposite end of described data transmission set and the opposite end of described data transmission set and described data transmission set.
12. equipment according to claim 11, is characterized in that,
Described maximum process number acquiring unit, specifically for receiving the Downlink Control Information that described base station sends on Physical Downlink Control Channel, carries the maximum process number of described hybrid automatic repeat-request in described Downlink Control Information; And from described Downlink Control Information, obtain the maximum process number of described hybrid automatic repeat-request.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210192138.7A CN102739379B (en) | 2012-06-11 | 2012-06-11 | Data transmission method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210192138.7A CN102739379B (en) | 2012-06-11 | 2012-06-11 | Data transmission method and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102739379A CN102739379A (en) | 2012-10-17 |
| CN102739379B true CN102739379B (en) | 2015-05-20 |
Family
ID=46994229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210192138.7A Active CN102739379B (en) | 2012-06-11 | 2012-06-11 | Data transmission method and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102739379B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3200515B1 (en) * | 2014-11-07 | 2019-08-28 | Huawei Technologies Co., Ltd. | Data transmission method and data transmission device |
| CN104579603B (en) * | 2014-12-25 | 2017-12-26 | 京信通信系统（中国）有限公司 | A kind of downlink dispatching method and device based on HARQ |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101686116A (en) * | 2008-09-23 | 2010-03-31 | 大唐移动通信设备有限公司 | Method, system and device for indicating progress of reserved hybrid automatic repeat request |
| CN101784076A (en) * | 2009-01-21 | 2010-07-21 | 大唐移动通信设备有限公司 | Method for reducing HARQ retransmission time interval in multi-carrier system and base station |
| CN101946444A (en) * | 2008-02-12 | 2011-01-12 | 高通股份有限公司 | Control of data transmission based on HARQ in a wireless communication system |
-
2012
- 2012-06-11 CN CN201210192138.7A patent/CN102739379B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101946444A (en) * | 2008-02-12 | 2011-01-12 | 高通股份有限公司 | Control of data transmission based on HARQ in a wireless communication system |
| CN101686116A (en) * | 2008-09-23 | 2010-03-31 | 大唐移动通信设备有限公司 | Method, system and device for indicating progress of reserved hybrid automatic repeat request |
| CN101784076A (en) * | 2009-01-21 | 2010-07-21 | 大唐移动通信设备有限公司 | Method for reducing HARQ retransmission time interval in multi-carrier system and base station |
Non-Patent Citations (1)
| Title |
|---|
| 一种HSDPA用户HARQ进程数的优化方法;徐卫中等;《第十三届全国青年通信学术会议论文集》;20081031;第1节，第2.1.3节，第3节第（1）部分和第4节 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102739379A (en) | 2012-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102568176B1 (en) | Method and apparatus for transmitting HARQ-ACK/NACK in wireless communication system | |
| KR101951681B1 (en) | An uplink signal transmission or reception method for a terminal supporting a plurality of transmission time intervals, a plurality of subcarrier intervals, or a plurality of processing times in a wireless communication system, and a device therefor | |
| KR102163928B1 (en) | Method for uplink transmission in wireless communication system and apparatus therefor | |
| CN109997327B (en) | Method for transmitting uplink signal in wireless communication system and apparatus therefor | |
| CN105227275B (en) | Method and apparatus in the telecommunication system of signaling with the assigned data grouping in bundled window | |
| CN111247857B (en) | Method for transmitting or receiving signal in wireless communication system and apparatus therefor | |
| KR101409733B1 (en) | Method for transmission of data in a radio communication system, first network node and second network node thereof | |
| US20180337763A1 (en) | Method and apparatus for sending feedback information | |
| US20130336160A1 (en) | Devices for sending and receiving feedback information | |
| US20130195047A1 (en) | Method and apparatus implementing channel quality control | |
| CN103718484A (en) | Apparatus and method for defining physical channel transmit/receive timings and resource allocation in tdd communication system supporting carrier aggregation | |
| CN106900071A (en) | Uplink control information sending and receiving method, terminal and base station | |
| CN104917557A (en) | Multiplexing control and data information from a user equipment in MIMO transmission mode | |
| CN105429738A (en) | Data transmission method, device and system | |
| JP2011172053A (en) | Mobile terminal, radio base station device, and radio communication method | |
| US10560227B2 (en) | Downlink transmission method, base station, and terminal | |
| US20120320863A1 (en) | Wireless communication system and method for retransmission process thereof | |
| CN112534915A (en) | ACK and NACK differentiation on PUCCH for HARQ-ACK feedback for URLLC PDSCH transmission | |
| CN112567849A (en) | Channel collision handling for URLLC, and ACK feedback on/off for HARQ-ACK for URLLC PDSCH transmission | |
| CN108886436A (en) | Radio network node, wireless device and the method wherein executed | |
| CN108737036B (en) | Feedback information receiving method, sending method, device and system | |
| CN104969499A (en) | Method and device for configuring data transmission resource | |
| CN102916792B (en) | Data transmission method and subscriber equipment | |
| CN102468945A (en) | Transmission method and equipment for acknowledgement (ACK) or negative acknowledgement (NACK) feedback information | |
| CN104427550A (en) | Method and apparatus for transmitting uplink data in a business flow self-adaption system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING CHUANGYI VISION TECHNOLOGY CO., LTD. Effective date: 20130419 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130419 Address after: 100084, A, building 18, building 1, Tsinghua Science and Technology Park, No. Zhongguancun East Road, Haidian District, Beijing Applicant after: Innofidei Technology Co.,Ltd. Applicant after: INNOFIDEI TECHNOLOGIES Inc. Address before: 100084, A, building 18, building 1, Tsinghua Science and Technology Park, No. Zhongguancun East Road, Haidian District, Beijing Applicant before: Innofidei Technology Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151014 Address after: 100080, Beijing, Zhongguancun Haidian District Street 11, 100 million world wealth center, block A, 12 Patentee after: BEIJING BOXIN SHITONG TECHNOLOGY Co.,Ltd. Patentee after: Innofidei Technology Co.,Ltd. Patentee after: INNOFIDEI TECHNOLOGIES Inc. Address before: 100084, A, building 18, building 1, Tsinghua Science and Technology Park, No. Zhongguancun East Road, Haidian District, Beijing Patentee before: Innofidei Technology Co.,Ltd. Patentee before: INNOFIDEI TECHNOLOGIES Inc. |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210309 Granted publication date: 20150520 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20240309 Granted publication date: 20150520 |