CN101807984A - Method and device for scheduling synchronous HARQ and wireless communication system - Google Patents
Method and device for scheduling synchronous HARQ and wireless communication system Download PDFInfo
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Abstract
The invention discloses a method and a device for scheduling a synchronous HARQ and a wireless communication system. In the method, a base station acquires processing delay of a terminal before the synchronous HARQ is established; the base station determines a first serial number of a subframe used by burst transmission or burst retransmission of uplink data in the process of the synchronous HARQ and a second serial number of a subframe used by downlink feedback signaling in the process of the synchronous HARQ according to preset information, wherein the preset information comprises the processing delay of the terminal and processing delay of the base station. The technical scheme can improve system link efficiency and reduce system cost to a certain extent.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to dispatching method, device and the wireless communication system of a kind of synchronous hybrid automatic repeat request (Hybrid Automatic Repeat Request abbreviates HARQ as).
Background technology
Mix automatic repeat requests (Hybrid Automatic Repeat Request, abbreviating HARQ as) technology is to the automatic repeat requests of tradition (Automatic Repeat Request, abbreviate ARQ as) improvement of technology, it has merged ARQ and forward error correction (Forward ErrorCorrection, FEC) technology, thereby become fading channel when having reduced to receiving the influence of data Block Error Rate, make that wireless communication system can provide higher, more stable data is handled up.At present, HARQ has become such as the key technology in the 4G system of Long Term Evolution (Long-Term Evolution abbreviates LTE as) system and IEEE 802.16m system.
The HARQ process mainly comprises following processing: (1) data sending terminal retransmits to data receiver transmission data burst or burst; (2) data receiver sends feedback signaling to data sending terminal; (3) data sending terminal and data receiver are to the arrangement scheduling of HARQ process.
Synchronous HARQ is meant that data burst transmission or burst retransmit and corresponding feedback signaling sends constantly in channel appointed, for synchronous HARQ, except the signaling consumption when setting up the HARQ process, system need not re-use system signaling in the HARQ process.
At a typical time division duplex (Time Division Duplex, abbreviate TDD as) in the system, in order to reduce the system delay that causes owing to the system link structure, and the data load on can the flexible allocation Uplink/Downlink, usually a radio frames further is divided into the littler a plurality of subframes of time granularity.The time span of one of them subframe is called as a Transmission Time Interval (Transmission Time Interval abbreviates TTI as).Up link and down link are distributed in respectively on one section continuous subframes, in concrete the application, down/and the ratio of up link in a radio frames is variable, for example, Fig. 1 shows the method for salary distribution of a radio frames in the TDD system, as shown in Figure 1, a radio frames is divided into 8 subframes, and wherein, preceding 5 continuous subframes are assigned to down link, back 3 continuous subframes are assigned to up link, and the ratio of following/up link is 5: 3.
In the TDD system, the data burst transmission of synchronous HARQ/burst retransmits and the arrangement scheduling of feedback signaling need to consider the upstate of current wireless frame/subframe, down/factors such as processing time-delay of uplink proportion, base station and terminal.Particularly, handle time-delay and comprise receiving terminal time-delay and transmitting terminal time-delay.Wherein, the receiving terminal time-delay is meant that data receiver retransmits to the time interval that is ready to corresponding feedback signaling from receiving data burst transmission or burst; Transmitting terminal time-delay is meant that data sending terminal is ready to the time interval that data burst transmission next time or burst retransmit from receiving to feed back signal to.Processing delay is by the disposal ability decision of equipment, and generally speaking, the disposal ability of base station equipment is strong more, and it is relatively more little to handle time-delay, for example 1～2TTI.And because the difference of design, the disposal ability difference of different terminal equipment is bigger, handles time-delay and may be 1～3TTI.
At present, when design, generally require all base station equipments and all terminal equipments all to satisfy fixing processing delay requirement respectively, if the fixedly processing of selecting time-delay is excessive, then can reduce system link efficient, if but the fixedly processing of selecting time-delay is too small, then can improve requirement to the disposal ability of equipment, for end terminal equipment, improve its disposal ability and then can increase its cost.
Summary of the invention
In view of this, the invention provides the scheduling scheme of a kind of improved HARQ, in order to solve in the prior art owing to require all terminals all to satisfy identical processing time-delay, thereby the problem that causes the cost of terminal to increase.
A kind of dispatching method of synchronous hybrid automatic repeat request is provided according to an aspect of the present invention.
Dispatching method according to synchronous hybrid automatic repeat request of the present invention comprises: before synchronous HARQ was set up, the base station obtained the processing delay of terminal; The base station is according to presupposed information, determine that transmission of upstream data burst in the synchronous HARQ process or burst retransmit first sequence number of the subframe of using, and second sequence number of the subframe that the downstream feedback signaling is used in the synchronous HARQ process, wherein, above-mentioned presupposed information comprises: the processing delay of terminal and the processing delay of base station.
Further, above-mentioned presupposed information also comprises the upstate of subframe of upstate, the current wireless frame of ratio, the current wireless frame of the up link of current wireless frame and down link.
According to another aspect of the present invention, provide a kind of base station.
Base station according to the present invention comprises: acquisition module is used to obtain the processing delay of terminal; Determination module, be used for determining and the synchronous HARQ process upstream data burst transmission of terminal or first sequence number that burst retransmits the subframe of using according to presupposed information, and second sequence number of the subframe that the downstream feedback signaling is used in the synchronous HARQ process, wherein, above-mentioned presupposed information comprises: the processing delay of terminal and the processing delay of base station.
Further, above-mentioned presupposed information also comprises: the upstate of the upstate of the up link of current wireless frame and the ratio of down link, current wireless frame, the subframe of current wireless frame.
According to a further aspect of the invention, provide a kind of wireless communication system.
Wireless communication system according to the present invention comprises: terminal and base station, and wherein, terminal is used for determining its processing time-delay according to its disposal ability; The base station is used for the processing time-delay according to processing time-delay of himself and the terminal that gets access to, determine that transmission of upstream data burst in the synchronous HARQ process or burst retransmit the sequence number of the subframe of using, and the sequence number of the subframe that the downstream feedback signaling is used in the synchronous HARQ process.
By above-mentioned at least one scheme of the present invention, determine the scheduling scheme of synchronous HARQ process in real time according to the processing time-delay of base station and terminal, can solve in the prior art owing to require all terminals all to satisfy identical processing time-delay, thereby the problem that the cost that causes terminal increases, can improve system link efficient to a certain extent, reduce system cost.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the method for salary distribution schematic diagram of a kind of radio frames in the TDD system in the prior art;
Fig. 2 is the structural representation according to the wireless communication system of the embodiment of the invention;
Fig. 3 is the structural representation according to the base station of the embodiment of the invention;
Fig. 4 is the structural representation of base station according to the preferred embodiment of the invention;
Fig. 5 is the flow chart according to the dispatching method of the synchronous HARQ of the embodiment of the invention;
Fig. 6 is the flow chart of the dispatching method of synchronous HARQ according to the preferred embodiment of the invention.
Embodiment
Functional overview
The embodiment of the invention in the prior art owing to require all terminals all to satisfy identical processing time-delay, thereby the problem that causes the cost of terminal to increase has proposed a kind of scheduling scheme of improved synchronous HARQ.In the technical scheme that the embodiment of the invention provides, before synchronous HARQ was set up, terminal was determined its processing time-delay according to its disposal ability.The base station obtains the processing time-delay of terminal, and handle processing time-delay of time-delay and base station according to this, determine to be used in the synchronous HARQ process sequence number of the subframe that transmits upstream data burst transmission and burst retransmit, and the sequence number that is used to transmit the subframe of downstream feedback signaling in the synchronous HARQ process.
Under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
According to the embodiment of the invention, a kind of wireless communication system at first is provided, use the synchronous HARQ technology in this system.
Fig. 2 is the structural representation according to the wireless communication system of this bright embodiment, as shown in Figure 2, comprises according to the wireless communication system of the embodiment of the invention: terminal 1 and base station 2.Wherein, terminal 1 is used for determining its processing time-delay according to its disposal ability; Base station 2 is used for the processing time-delay according to processing time-delay of himself and the terminal 1 that gets access to, determine that transmission of upstream data burst in the synchronous HARQ process and burst retransmit the sequence number of employed subframe, and the sequence number of the subframe that the downstream feedback signaling is used in this synchronous HARQ process.Particularly, terminal 1 is after determining its processing time-delay, it can be handled time-delay and send to base station 2, the processing time-delay that base station 2 receiving terminals 1 send, get access to the processing time-delay of terminal 1, be not limited to the method, in specific implementation process, other base station 2 can get access to the method for the processing time-delay of terminal 1 and also can use in embodiments of the present invention.
In specific implementation process, above-mentioned terminal 1 and base station 2 are connected by wireless communication link, and this wireless communication link is divided into a plurality of radio frames in time, each radio frames further is divided into N the more subframe SFI_i of small grain size again, wherein, and i=1, ..., N.The time length of field of each subframe is a TTI.And, in a radio frames, begin k continuous subframes and be assigned to 2 down links to terminal 1 from the base station, back N-k continuous subframes be assigned to from terminal 1 to the base station 2 up link.Wherein down/uplink proportion is k/ (N-k).
Particularly, base station 2 sends feedback signaling by the feedback signaling channel with terminal 1 to terminal 1, and terminal 1 sends bursty data or burst re-transmission by the burst transfers of data/retransfer channel with base station 2 to base station 2.
Particularly, the disposal ability of base station 2 is reflected as its processing delay Nb as receiving terminal.Wherein, Nb represents can be ready to corresponding feedback signal and prepare to mail to terminal 1 in (Nb1) * TTI time after base station 2 receives the data burst transmission or burst re-transmission of self terminal 1.
Particularly, the disposal ability of terminal 1 is reflected as its processing delay Nt as transmitting terminal.Wherein, Nt represents after terminal 1 receives the feedback signal that retransmits from data burst transmission before 2 pairs of the base stations or burst, can be ready to next time data burst transmission or burst and retransmit in (Nt+1) * TTI time, and prepare to mail to base station 2.
Wherein, synchronous HARQ process is being carried the bursty data from above-mentioned terminal 1 to above-mentioned base station 2.Finish in a wireless frame period in double data burst transmission on this HARQ process or burst re-transmission, promptly transmission cycle is not more than N * TTI.
According to the above-mentioned wireless communication system that the embodiment of the invention provides, the transmission subframe that can distribute synchronous HARQ according to the processing time-delay of base station and terminal.
According to the embodiment of the invention, a kind of base station also is provided, use in this wireless communication system the base station 2 that this base station can be used as in the above-mentioned wireless communication system.
Fig. 3 is the structural representation according to the base station of the embodiment of the invention, as shown in Figure 3, mainly comprises according to the base station of the embodiment of the invention: acquisition module 11 and determination module 13.Wherein, acquisition module 11 is used to obtain the processing delay of terminal; Determination module 13 is connected with acquisition module 11, be used for determining and the synchronous HARQ process upstream data burst transmission of above-mentioned terminal or first sequence number that burst retransmits the subframe of using according to presupposed information, and second sequence number of the subframe that the downstream feedback signaling is used in the synchronous HARQ process, wherein, this presupposed information comprises: the processing delay of above-mentioned terminal and the processing delay of this base station.
Particularly, as shown in Figure 4, above-mentioned determination module 13 can comprise: computing unit 131 and selected cell 133.Wherein, computing unit 131 is used for calculating the right combination of subframe numbers that a radio frames satisfies following three conditions, and wherein, each subframe numbers is to all comprising subframe numbers i and subframe numbers j.
1≤j≤k；(1)
k+1≤i≤N；(2)
(Nt+1)≤i-j≤[N-(Nb+1)]；(3)
Wherein, Nb is the processing delay of this base station, and Nt is the processing delay of above-mentioned terminal, and N is the quantity of the subframe that comprises in the current wireless frame, and the subframe of subframe numbers 1 to k is assigned to down link in the current wireless frame.
In specific implementation process, computing unit 131 can travel through the sequence number of the subframe of current wireless frame, and it is right to obtain the sequence that satisfies above-mentioned three conditions.
Selected cell 133, be used for upstate according to the subframe of above-mentioned radio frames, selecting its corresponding subframe from the combinations thereof that computing unit 131 obtains is that available subframe numbers is right, the subframe numbers i that this subframe numbers of selecting is right is as above-mentioned first sequence number, it is the sequence number that upstream data burst transmission or burst retransmit the subframe of using in the synchronous HARQ process, the subframe numbers j that this subframe numbers of selecting is right is as above-mentioned second sequence number, i.e. the sequence number of the subframe that the downstream feedback signaling is used in the synchronous HARQ process.
In specific implementation process, combinations thereof can be obtained in real time, also can preserve the combinations thereof that aforementioned calculation unit 131 obtains in advance, when the HARQ initialization, according to the processing time-delay of the terminal that receives, search combinations thereof, thereby it is right to obtain corresponding sequence number, and therefore, this base station also comprises: memory cell 135, be connected with computing unit 131, be used to preserve the combinations thereof that computing unit 131 obtains; Then selected cell 133 is according to the upstate of the subframe of current wireless frame, and selecting its corresponding subframe from the combinations thereof that memory cell 135 is preserved is that available subframe numbers is right.
According to the above-mentioned base station that the embodiment of the invention provides, can according to the processing delay of terminal and base station, distribute the subframe of using in the synchronous HARQ process in the starting stage of synchronous HARQ.
According to the embodiment of the invention, a kind of dispatching method of synchronous HARQ also is provided, this method can be realized by above-mentioned wireless communication system or base station that the embodiment of the invention provides.
Fig. 5 is the flow chart according to the dispatching method of the synchronous HARQ of the embodiment of the invention, as shown in Figure 5, mainly comprises following processing (step S501-step S503) according to the dispatching method of the synchronous HARQ of the embodiment of the invention:
Step S501: before HARQ set up, the base station obtained the processing delay of terminal;
In specific implementation process, when the synchronous HARQ procedure initialization, terminal is determined its processing time-delay Nt according to its disposal ability, and reports its processing time-delay Nt to the base station, is perhaps initiatively obtained the processing time-delay Nt of this terminal by the base station.
Step S503: the base station is according to presupposed information, determine that transmission of upstream data burst in the synchronous HARQ process or burst retransmit first sequence number of the subframe of using, and second sequence number of the subframe that the downstream feedback signaling is used in the synchronous HARQ process, wherein, this presupposed information comprises: the processing delay of above-mentioned terminal and the processing delay of this base station.
In specific implementation process, above-mentioned presupposed information also include but not limited to following one of at least: the upstate of the upstate of the up link of current wireless frame and the ratio of down link, current wireless frame, the subframe of current wireless frame.
In specific implementation process, fixing during the ratio of up link and down link in radio frames in the Radio Link between certain terminal and certain base station, when this terminal switched to another sub-district, this ratio may change.In actual application, a radio frames that is divided into 8 subframes, down/uplink proportion can for following one of arbitrarily: 2: 6,3: 5,4: 4,5: 3,6: 2.The processing time-delay Nb of base station is one or two TTI, and the processing time-delay Nt of terminal can be one or two or three TTI.
Above-mentioned first sequence number and second sequence number can be determined by following processing according to above-mentioned presupposed information in the base station:
Step 1: obtain and satisfy the right combination of pre-conditioned subframe numbers, wherein, each subframe numbers to all comprise subframe numbers i (i=k+1 ..., N, wherein, N is the integer greater than 1, the quantity of the subframe that indication current wireless frame comprises, k is the subframe numbers of the subframe of last down link in the current wireless frame) and subframe numbers j (j=1, ..., k);
Step 2: according to the upstate of each subframe in the current wireless frame, select a subframe numbers right in the combination of determining from step 1, the subframe of the subframe numbers i of this subframe numbers centering and subframe numbers j correspondence is current available subframe;
Step 3: the subframe numbers i that the subframe numbers of selecting is right is as above-mentioned first sequence number, and subframe numbers j is as above-mentioned second sequence number.
In specific implementation process, also can be with the combination that pre-determines in the step 1, and preserve this combination, and when the synchronous HARQ procedure initialization, the base station is carried out above-mentioned steps 2 and is selected a subframe numbers right from the combination of preserving, and execution in step 3 again.
Particularly, pre-conditioned the comprising in the above-mentioned steps 1:
1≤j≤k；
k+1≤i≤N；
(Nt+1)≤i-j≤[N-(Nb+1)]；
Wherein, Nb is the processing delay of this base station, and Nt is the processing delay of this terminal.In above-mentioned steps 1, the base station can travel through the sequence number of current wireless frame, satisfies above-mentioned pre-conditioned subframe numbers to (subframe numbers i and subframe numbers j) to obtain.
In specific implementation process, the sequence number of base station traversal current wireless frame, the combinations thereof that gets access to may comprise that a plurality of subframe numbers are right, if it all is available to the current state of the subframe of the subframe numbers correspondence that comprises that a plurality of subframe numbers are arranged in this combination, then the base station can be selected the subframe numbers i and the subframe numbers j of a centering arbitrarily, retransmits the sequence number of the subframe of using and the sequence number of the subframe that the downstream feedback signaling is used as upstream data burst transmission or burst in the synchronous HARQ process.
In specific implementation process, after base station upstream data burst transmission or burst in getting access to the synchronous HARQ process retransmit the sequence number of the sequence number of the subframe of using and the subframe that the downstream feedback signaling is used, then notify terminal concrete assignment information; If combinations thereof is that the current state of subframe of the subframe numbers correspondence of each subframe numbers centering in sky or the combinations thereof all is unavailable, then the base station is by the failure of terminal HARQ channel allocation, terminal is after receiving this notice, can select to attempt again that (information that promptly sends is to the base station, indication base station sub-distribution again), perhaps terminal stops synchronous HARQ, no longer carries out HARQ.In specific implementation process, the base station can not send notice to terminal yet, and synchronous HARQ is then attempted or stop to terminal if do not receive the assignment information of subframe in the notice synchronous HARQ process of base station, again after sending its scheduled time of handling time-delay.
The dispatching method of the above-mentioned synchronous HARQ that provides according to the embodiment of the invention, can retransmit the subframe of using according to transmits upstream data burst transmission or the burst in the disposal ability distribution synchronous HARQ process of base station and terminal, and the subframe of downstream feedback signaling use.
For further understanding the specific implementation process of the technical scheme that the embodiment of the invention provides, below describe by a preferred embodiment.
In this embodiment, a radio frames is divided into 8 subframes, down/and uplink proportion can be 2: 6 or 3: 5 or 4: 4 or 5: 3 or 6: 2.The time span of one of them subframe is a TTI.The processing time-delay of base station is one or two TTI.The processing time-delay of terminal equipment can be one or two or three TTI.
In the present embodiment, double data burst transmission on synchronous HARQ process or burst retransmit to be finished in a wireless frame period, and promptly transmission cycle is not more than 8xTTI.
Fig. 6 is the flow chart of present embodiment, and as shown in Figure 6, in the present embodiment, the scheduling process of synchronous HARQ mainly comprises following processing:
Step S601: base station A and terminal B are when consulting initialization uplink synchronous HARQ process, and terminal B is equivalent to the step S501 among above-mentioned Fig. 5 to the processing time-delay Nt as data sending terminal of base station A reporting terminal B.
Step S603: base station A is according to the above-mentioned processing time-delay Nt of terminal B report and the local processing time-delay Nb as data receiver, determine in the synchronous HARQ process, upstream data burst or retransmit employed subframe sequence number i, and the employed subframe sequence number of the feedback signal of descending correspondence j.
In the present embodiment, in advance according to the ratio of the different Uplink/Downlink between base station A and the terminal B, the different disposal time-delay Nt of the different disposal time-delay Nb of base station A and terminal B, according to above-mentioned above-mentioned pre-conditioned, the subframe numbers of each subframe in the traversal radio frames, can obtain all i/j that can select combinations in each case, and the result is kept at the base station, in the present embodiment, the described i/j combination that can select that preserve the base station is as shown in table 1, n/a is illustrated in this time/uplink proportion in table 1, receiving terminal (being base station A) is handled time-delay, transmitting terminal (being terminal B) is handled and can't be distributed the i/j combination under the time-delay situation, and DL/UL is the ratio of down link and up link.
Table 1.
The base station is according to current situation, it is the value of ratio of processing time-delay Nt, current down link and up link of processing time-delay Nb, the terminal B of current base station A, from table 1, obtain the i/j combination corresponding with present case, and according to the upstate of each subframe in the current wireless frame, it is right to obtain suitable i/j in the i/j that the obtains combination.
Particularly, such as, current Nb=1, Nt=3, the ratio of down link and up link is 3: 5, then the base station obtains i/j combination as shown in table 2 from table 1.
Table 2.
| ??i | ??j |
| ??n/a | ??n/a |
| ??4 | ??n/a |
| ??5 | ??1 |
| ??6 | ??1，2 |
| ??i | ??j |
| ??7 | ??1，2，3 |
| ??8 | ??2，3 |
The subframe sequence number of supposing subframe available in the current wireless frame comprises: 1,3,4,6 and 8, then current available i/j is to comprising: i=5 and j=1, i=6 and j=1, i=8 and j=3, the base station can be selected a pair of from these three couples of i/j arbitrarily, the value of the i of this centering is retransmitted the sequence number of the subframe of using as upstream data burst transmission or burst in the synchronous HARQ process, the sequence number of the subframe that the value of j is used as downstream feedback signaling in the synchronous HARQ process.
In specific implementation process, this i/j combination if subframe SFI_i or SFI_j can't be assigned with, is then abandoned in the base station select available i/j combination successively from table 2 after, continues to seek available i/j combination in the remaining i/j combination of table 2.
Step S605: determining step S603 neutron frame number i and subframe sequence number j determine whether success, if, execution in step S607 then; Otherwise, execution in step S609.
Above-mentioned steps S603 and step S605 are equivalent to the step S503 among Fig. 5.
In specific implementation process, the base station obtains the i/j combination corresponding with present case and may currently all cannot use from above-mentioned table 1, then determine subframe numbers i and j failure; Perhaps, the i/j corresponding with present case that the base station obtains from above-mentioned table 1 is combined as sky, such as, if then there be not the i/j combination corresponding with this situation in Nb=1, Nt=4 in table 1, then determine subframe numbers i and j failure.
Step S607: base station A sends the sub-frame information of HARQ channel allocation to terminal B, promptly above-mentioned upstream data burst or retransmit employed subframe sequence number i, and the employed subframe sequence number of the feedback signal of descending correspondence j;
In specific implementation process, base station A can be carried at subframe sequence number i and subframe sequence number j and send to terminal B on first subframe.
Step S609: base station A sends the indication of indication HARQ channel allocation failure to terminal B.
As mentioned above, the technical scheme that provides by the embodiment of the invention, by determine the scheduling scheme of synchronous HARQ process in real time according to the disposal ability of base station and terminal, can solve in the prior art owing to require all terminals all to satisfy identical processing time-delay, thereby the problem that the cost that causes terminal increases, can improve system link efficient to a certain extent, reduce system cost, improve user experience.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the dispatching method of a synchronous hybrid automatic repeat request HARQ is characterized in that, comprising:
Before synchronous HARQ was set up, the base station obtained the processing delay of terminal;
Described base station is according to presupposed information, determine that transmission of upstream data burst in the synchronous HARQ process or burst retransmit first sequence number of the subframe of using, and second sequence number of the subframe that the downstream feedback signaling is used in the synchronous HARQ process, wherein, described presupposed information comprises: the processing delay of described terminal and the processing delay of described base station.
2. method according to claim 1 is characterized in that, described presupposed information also comprise following one of at least: the upstate of the upstate of the up link of current wireless frame and the ratio of down link, current wireless frame, the subframe of current wireless frame.
3. method according to claim 2 is characterized in that, determines described first sequence number, described second sequence number by following processing:
Determine to satisfy the right combination of pre-conditioned subframe numbers, wherein, each subframe numbers is to all comprising subframe numbers i and subframe numbers j;
According to the upstate of the subframe of current wireless frame, from described combination, select a subframe numbers right, with the described subframe numbers selected to the subframe numbers i that comprises and subframe numbers j respectively as described first sequence number and described second sequence number;
Wherein, i and j are natural number, and i is not equal to j.
4. method according to claim 2 is characterized in that, determines described first sequence number, described second sequence number by following processing:
Obtain the right combination of the subframe numbers that satisfies predetermined condition of preserving in advance, wherein, each subframe numbers is to all comprising subframe numbers i and subframe numbers j;
One subframe numbers is right, with the described subframe numbers selected to the subframe numbers i that comprises and subframe numbers j respectively as described first sequence number and described second sequence number;
Wherein, i and j are natural number, and i is not equal to j.
5. according to claim 3 or 4 described methods, it is characterized in that described pre-conditioned comprising:
1≤j≤k；
k+1≤i≤N；
(Nt+1)≤i-j≤[N-(Nb+1)]；
Wherein, Nb is the processing delay of described base station, and Nt is the processing delay of described terminal, and N is the quantity of the subframe that comprises in the current wireless frame, and the subframe of subframe numbers 1 to k is assigned to down link in the current wireless frame.
6. according to claim 3 or 4 described methods, it is characterized in that described method also comprises:
If satisfy the described pre-conditioned described sky that is combined as, all subframe numbers in the perhaps described combination all can not use the subframe of correspondence, then notify described terminal HARQ channel allocation failure.
7. according to claim 3 or 4 described methods, it is characterized in that after definite described first sequence number and described second sequence number, described method also comprises:
Described first sequence number and described second sequence number that described base station will be determined are notified to described terminal.
8. a base station is characterized in that, comprising:
Acquisition module is used to obtain the processing delay of terminal;
Determination module, be used for determining and the synchronous HARQ process upstream data burst transmission of described terminal or first sequence number that burst retransmits the subframe of using according to presupposed information, and second sequence number of the subframe that the downstream feedback signaling is used in the synchronous HARQ process, wherein, described presupposed information comprises: the processing delay of described terminal and the processing delay of described base station.
9. base station according to claim 8 is characterized in that, described determination module comprises:
Computing unit is used for calculating the right combination of subframe numbers that a radio frames meets the following conditions, and wherein, each subframe numbers is to all comprising subframe numbers i and subframe numbers j:
1≤j≤k；
k+1≤i≤N；
(Nt+1)≤i-j≤[N-(Nb+1)]；
Wherein, Nb is the processing delay of described base station, and Nt is the processing delay of described terminal, and N is the quantity of the subframe that comprises in the current wireless frame, and the subframe of subframe numbers 1 to k is assigned to down link in the current wireless frame;
Selected cell is used for the upstate of the subframe of described radio frames, from the combination that described computing unit obtains, selects a subframe numbers right, and subframe numbers i that the described subframe numbers of selecting is right and subframe numbers j are respectively as described first sequence number and described second sequence number.
10. base station according to claim 9 is characterized in that, described determination module also comprises:
Memory cell is used to preserve the described combination that described computing unit obtains;
Described selected cell is used for the upstate according to the subframe of current wireless frame, from the described combination that described memory cell is preserved, select a subframe numbers right, with the described subframe numbers selected to the subframe numbers i that comprises and subframe numbers j respectively as described first sequence number and described second sequence number.
11. a wireless communication system is characterized in that, comprising: terminal and base station, wherein,
Described terminal is used for determining its processing time-delay according to its disposal ability;
Described base station, be used for according to processing time-delay of himself and the described processing time-delay that gets access to, determine that transmission of upstream data burst in the synchronous HARQ process or burst retransmit the sequence number of the subframe of using, and the sequence number of the subframe that the downstream feedback signaling is used in the synchronous HARQ process.
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