CN101547069B - Method, system and device for transmission of data receiving feedback signals - Google Patents
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Abstract
The embodiment of the invention discloses a method for transmission of data receiving feedback signals. The method comprises the following steps: receiving the data on a plurality of downstream subframes; judging whether the plurality of downstream subframes belong to the same downstream subframe group according to subframe binding configuration information, if so, determining the plurality of downstream subframes to meet the binding condition; or determining the data received on the plurality of downstream subframes is scheduled by the same scheduling signaling according to the received scheduling signaling, if so, determining the plurality of downstream subframes to meet the binding condition; generating the data receiving feedback signals according to the data receiving condition of the plurality of the downstream subframes when met; transmitting the data receiving feedback signals on an upstream subframe. The embodiment of the invention also discloses a transmission system and a device of the data receiving feedback signals. By adopting the invention, the quantity of the transmitted data receiving feedback signals can be reduced, and the complexity of the system is further reduced.
Description
Technical field
The present invention relates to field of wireless transmission, relate in particular to a kind of sending method, system and device of data receiving feedback signals.
Background technology
In Long Term Evolution (LTE) system, support two class wireless frame structures, wherein the second class wireless frame structure is applicable to LTE time division duplex (TDD) system, this wireless frame structure adopts the unsymmetric structure of up-downgoing variable-scale to support non-symmetrical service.
Shown in Figure 1A and 1B, be the second class wireless frame structure schematic diagram of LTE TDD system, wherein:
Be to be radio frames (radio frame) structure of 5ms in the switching point cycle shown in Figure 1A, this radio frames is made of two fields (half-frame), the time span of each field is 5ms, each field comprises 5 subframes, the time span of each subframe is 1ms, wherein 4 subframes are made of two time slots (slot) respectively, and each time slots length is 0.5ms; Another subframe is made of descending special time slot (DwPTS), switching point time slot (GP) and uplink special time slot (UpPTS), and the time span of DwPTS and UpPTS is configurable, but requires the time span of DwPTS, GP and UpPTS to equal 1ms.Subframe 1 and subframe 6 comprise DwPTS, GP and UpPTS, and all other subframes comprise two adjacent time slots, and wherein i subframe constitutes with 2i+1 time slot by 2i.
Be to be the wireless frame structure of 10ms in the switching point cycle shown in Figure 1B, this wireless frame structure and switching point cycle are that the difference of the wireless frame structure of 5ms is, DwPTS exists in two fields, but GP and UpPTS only exist in first field, and the time span of the DwPTS in second field is 1ms.
In the wireless frame structure shown in Figure 1A and Figure 1B, subframe 0 and subframe 5 and DwPTS always are reserved as downlink transfer.In the wireless frame structure shown in Figure 1A, subframe 2 and subframe 7 and UpPTS are reserved as uplink.In the wireless frame structure shown in Figure 1B, subframe 2 and UpPTS are reserved as uplink.In view of the above, can determine that the ascending-descending subframes proportional arrangement of supporting is as shown in the table, wherein U represents sub-frame of uplink, and D represents descending sub frame, and S represents special subframe (subframe that promptly comprises DwPTS, GP and UpPTS):
According to last table, the ascending-descending subframes ratio of configuration 0 is 3: 1, the ascending-descending subframes ratio of configuration 1 is 2: 2, the ascending-descending subframes ratio of configuration 2 is 1: 3, the ascending-descending subframes ratio of configuration 3 is 3: 6, the ascending-descending subframes ratio of configuration 4 is 2: 7, and the ascending-descending subframes ratio of configuration 5 is 1: 8, and the ascending-descending subframes ratio of configuration 6 is 5: 3.
Terminal for this packet generates the Data Receiving feedback message, comprises ACK and NACK message, and this feedback message is sent by sub-frame of uplink according to reception condition when descending sub frame receives packet.Terminal may need to send a plurality of feedback messages at a sub-frame of uplink, especially at descending sub frame during more than sub-frame of uplink, such as, in the up-downgoing ratio is 3: 1 o'clock, descending sub frame 0,1,3,4 corresponding sub-frame of uplink 2 are behind descending sub frame 0,1,3,4 reception packets, for each descending sub frame generates an ACK/NACK feedback message respectively, and each ACK/NACK feedback message carried out combined coding, send by sub-frame of uplink 2 then.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following technical problem:
A sub-frame of uplink may transmit a plurality of Data Receiving feedback messages in the existing transmission plan, and the Data Receiving feedback message that the sub-frame of uplink transmission is more causes the implementation complexity of system higher.
Summary of the invention
The embodiment of the invention provides a kind of sending method, system and device of data receiving feedback signals, and sub-frame of uplink transmits system's implementation complexity problem of higher that more Data Receiving feedback message is brought in the prior art in order to solve.
The embodiment of the invention provides a kind of sending method of data receiving feedback signals, and this method comprises:
On a plurality of descending sub frames, receive data;
According to the subframe binding configuration information, judge whether described a plurality of descending sub frame belongs to same descending sub frame group, if determine that then described a plurality of descending sub frames satisfy the binding condition; Perhaps, according to the dispatch of receiving, whether the data of determining to receive on described a plurality of descending sub frames are by same dispatch scheduling, if determine that then described a plurality of descending sub frames satisfy the binding condition; When satisfying,, generate data receiving feedback signals according to the Data Receiving situation of described a plurality of descending sub frames;
On sub-frame of uplink, described data receiving feedback signals is sent.
The embodiment of the invention provides a kind of terminal, and this terminal comprises:
Receiving element is used for receiving data on a plurality of descending sub frames;
Determining unit comprises first judging unit, first unit, second judging unit and second unit as a result as a result; Described first judging unit is used for according to the subframe binding configuration information, judges whether described a plurality of descending sub frame belongs to same descending sub frame group; Described first unit as a result is used for determining that described a plurality of descending sub frame satisfies the binding condition when the described a plurality of descending sub frames of described first judgment unit judges belong to same descending sub frame group; Described second judging unit is used for according to the dispatch of receiving, judges that whether the data that receive on described a plurality of descending sub frames are by same dispatch scheduling; Described second unit as a result, being used in the data that described second judgment unit judges receives on described a plurality of descending sub frames is during by same dispatch scheduling, determines that described a plurality of descending sub frame satisfies the binding condition;
Signal element is used for the Data Receiving situation according to described a plurality of descending sub frames, generates data receiving feedback signals;
Transmitting element is used on sub-frame of uplink described data receiving feedback signals being sent.
The embodiment of the invention provides a kind of base station, and this base station comprises:
Receiving element, being used to receive the data receiving feedback signals of self terminal, this data receiving feedback signals is the data receiving feedback signals that described terminal pins generates the data that receive on a plurality of descending sub frames;
Processing unit is used for when described data receiving feedback signals is Data Receiving success feedback signal, and decision does not retransmit the data that described a plurality of descending sub frames send; When described data receiving feedback signals is Data Receiving failure feedback signal, the data that described a plurality of descending sub frames send are carried out retransmission process.
The embodiment of the invention provides a kind of transmission system of data receiving feedback signals, and this system comprises:
Terminal comprises receiving element, signal element, transmitting element and determining unit; Described receiving element is used for receiving data on a plurality of descending sub frames; Described signal element is used for the Data Receiving situation according to described a plurality of descending sub frames, generates data receiving feedback signals; Described transmitting element is used on sub-frame of uplink described data receiving feedback signals being sent; Described determining unit comprises first judging unit, first unit, second judging unit and second unit as a result as a result; Described first judging unit is used for according to the subframe binding configuration information, judges whether described a plurality of descending sub frame belongs to same descending sub frame group; Described first unit as a result is used for determining that described a plurality of descending sub frame satisfies the binding condition when the described a plurality of descending sub frames of described first judgment unit judges belong to same descending sub frame group; Described second judging unit is used for according to the dispatch of receiving, judges that whether the data that receive on described a plurality of descending sub frames are by same dispatch scheduling; Described second unit as a result, being used in the data that described second judgment unit judges receives on described a plurality of descending sub frames is during by same dispatch scheduling, determines that described a plurality of descending sub frame satisfies the binding condition;
The base station comprises receiving element and processing unit; Described receiving element is used to receive described data receiving feedback signals; Described processing unit is used for when described data receiving feedback signals is Data Receiving success feedback signal, and decision does not retransmit the data that described a plurality of descending sub frames send; When described data receiving feedback signals is Data Receiving failure feedback signal, the data that described a plurality of descending sub frames send are carried out retransmission process.
Among the present invention, after receiving data on a plurality of descending sub frames,, generate data receiving feedback signals, and on sub-frame of uplink, described data receiving feedback signals is sent according to the Data Receiving situation of described a plurality of descending sub frames.As seen,, can reduce the quantity of transmission data receiving feedback signals, thereby reduce system's implementation complexity by the data receiving feedback signals of a plurality of descending sub frames being merged into a data receiving feedback signals.
Description of drawings
Figure 1A is the wireless frame structure schematic diagram of 5ms for the second class switching point cycle of LTE TDD system in the prior art;
Figure 1B is the wireless frame structure schematic diagram of 10ms for the second class switching point cycle of LTE TDD system in the prior art;
Fig. 2 is the schematic flow sheet of method that the embodiment of the invention provides;
Fig. 3 A is that 1: 3, switching point cycle are the subframe binding configuration schematic diagram that realizes covering grade 1 in the frame structure of 5ms for the ascending-descending subframes ratio;
Fig. 3 B is that 1: 3, switching point cycle are the subframe binding configuration schematic diagram that realizes covering grade 2 in the frame structure of 5ms for the ascending-descending subframes ratio;
Fig. 4 is that 3: 6, switching point cycle are the subframe binding configuration schematic diagram that realizes covering grade 1 in the frame structure of 10ms for the ascending-descending subframes ratio;
Fig. 5 A is that 2: 7, switching point cycle are the subframe binding configuration schematic diagram that realizes covering grade 1 in the frame structure of 10ms for the ascending-descending subframes ratio;
Fig. 5 B is that 2: 7, switching point cycle are the subframe binding configuration schematic diagram that realizes covering grade 2 in the frame structure of 10ms for the ascending-descending subframes ratio;
Fig. 5 C is that 2: 7, switching point cycle are the subframe binding configuration schematic diagram that realizes covering class 4 in the frame structure of 10ms for the ascending-descending subframes ratio;
Fig. 6 A is that 1: 8, switching point cycle are the subframe binding configuration schematic diagram that realizes covering grade 1 in the frame structure of 10ms for the ascending-descending subframes ratio;
Fig. 6 B is that 1: 8, switching point cycle are the subframe binding configuration schematic diagram that realizes covering grade 2 in the frame structure of 10ms for the ascending-descending subframes ratio;
Fig. 6 C is that 1: 8, switching point cycle are the subframe binding configuration schematic diagram that realizes covering class 4 in the frame structure of 10ms for the ascending-descending subframes ratio;
Fig. 7 is the structural representation of system that the embodiment of the invention provides;
Fig. 8 is the structural representation of terminal that the embodiment of the invention provides;
Fig. 9 is the structural representation of base station that the embodiment of the invention provides.
Embodiment
In order to reduce the transmission quantity of Data Receiving feedback message, reduction system implementation complexity, the embodiment of the invention provides a kind of sending method of data receiving feedback signals, in this method, for the data that receive on a plurality of descending sub frames only generate a data receiving feedback information, and in a sub-frame of uplink, send, thereby reach the transmission quantity that reduces the Data Receiving feedback message, reduce the purpose of system's implementation complexity.
Referring to Fig. 2, the sending method of the data receiving feedback signals that the embodiment of the invention provides specifically may further comprise the steps 20～step 23:
Step 20: terminal receives data on a plurality of descending sub frames;
Step 21:, generate a data receiving feedback signals according to the Data Receiving situation of described a plurality of descending sub frames;
Concrete, if on described a plurality of descending sub frames, all correctly receive data, then generate data and receive successful feedback signal; Otherwise, generating data feedback signal that takes defeat, the Data Receiving mistake on promptly one or more descending sub frames, the data on other descending sub frames also need to retransmit.
When generating data receiving feedback signals, can be direct Data Receiving situation according to each descending sub frame, generate a data receiving feedback signals; Also can be, at first for each descending sub frame, Data Receiving situation according to this descending sub frame generates data receiving feedback signals, each data receiving feedback signals that will generate then carries out the logical AND operation, if it is Data Receiving failure feedback signal that one or more data receiving feedback signals are wherein arranged, then finally generate the data feedback signal that takes defeat, otherwise, finally generate data and receive successful feedback signal.
Preferable, for the data that receive on a plurality of descending sub frames that satisfy the binding condition being generated a data receiving feedback information and sending, after step 20 and before the step 21, need to determine whether described a plurality of descending sub frames satisfy the binding condition.
Concrete, determine whether described a plurality of descending sub frame satisfies the binding condition following dual mode is arranged:
First kind, according to the subframe binding configuration information, judge whether described a plurality of descending sub frame belongs to same descending sub frame group, if determine that then described a plurality of descending sub frames satisfy the binding condition;
Second kind, according to the dispatch of receiving, whether the data of determining to receive on described a plurality of descending sub frames are by same dispatch scheduling, if determine that then described a plurality of descending sub frames satisfy the binding condition.
In above-mentioned first kind of mode, need require configuration subframe binding configuration information according to the covering of sub-district.UE has determined the covering grade that realizes in the quantity of the data receiving feedback signals that each sub-frame of uplink transmits at most, for example, sub-frame of uplink is data receiving feedback signals of transmission at most, then covering grade is 1, sub-frame of uplink is two data receiving feedback signals of transmission at most, then covering grade is 2, and the like.
Below in conjunction with concrete frame structure the subframe binding configuration mode is described:
For the ascending-descending subframes ratio is that 1: 3 and switching point cycle are the frame structure of 5ms, if realize covering grade 1, the subframe binding configuration mode is:
The whole descending sub frames and the special subframe of field are divided in same descending sub frame group, descending sub frame binding configuration information according to this configuration mode configuration is: comprise a descending sub frame group, this descending sub frame group comprises the whole descending sub frames and the special subframe of field.
As shown in Figure 3A, an instantiation for above-mentioned subframe binding configuration mode, descending sub frame 0,3,4 and special subframe 1 belong to same descending sub frame group, after the one or more subframes from 0,1,3 and 4 receive data, if Data Receiving is all correct, then generate Data Receiving success feedback message, as ACK message; Otherwise, generate Data Receiving failure feedback message, as NACK message, then the message that generates is sent by sub-frame of uplink 2.
For the ascending-descending subframes ratio is that 1: 3 and switching point cycle are the frame structure of 5ms, if realize covering grade 2, the subframe binding configuration mode is:
The whole descending sub frames and the special subframe of field are divided into two descending sub frame groups according to permutation and combination, descending sub frame binding configuration information according to this configuration mode configuration is: comprise two descending sub frame groups, each descending sub frame group comprises whole descending sub frames of field and at least two subframes in the special subframe, and the union of the subframe that described two descending sub frame groups are comprised comprises the whole descending sub frames and the special subframe of field.
Shown in Fig. 3 B, be a specific embodiment of above-mentioned subframe binding configuration mode, descending sub frame 0 and special subframe 1 belong to a descending sub frame group, and descending sub frame 3 and 4 belongs to another descending sub frame group.After the one or more subframes from 0,1,3 and 4 receive data, generate data for the descending sub frame that belongs to same descending sub frame group and receive feedback message, the data of other generation that then need on the same group do not receive feedback message, for example, receive data from subframe 0,1 and 3, it is correct that subframe 0 receives data, and subframe 1 and 3 receives error in data; Because 0 and 1 belongs to same descending sub frame group, and one of them sub-frame data reception mistake, therefore be NACK message of 0 and 1 generation; And 3 belong to another descending sub frame group, and the Data Receiving failure, then is 3 to generate another NACK message; Then, two NACK that will generate by sub-frame of uplink 2 send.
Need to prove, be not unique embodiment of corresponding subframe binding configuration mode shown in Fig. 3 B, can also be that descending sub frame 0,3 belongs to a descending sub frame group, and special subframe 1 and descending sub frame 4 belong to another descending sub frame group.Or the like, repeat no more here.
For the ascending-descending subframes ratio is that 3: 6 and switching point cycle are the frame structure of 10ms, if realize covering grade 1, the subframe binding configuration mode is:
The whole descending sub frames and the special subframe of radio frames are divided into three descending sub frame groups according to permutation and combination, the sub-frame of uplink that each descending sub frame group is corresponding different respectively, subframe binding configuration information according to this configuration mode configuration is: comprise three descending sub frame groups, each descending sub frame group comprises whole descending sub frames of radio frames and at least two subframes in the special subframe, and the union of the subframe that comprised of described three descending sub frame groups comprises the whole descending sub frames and the special subframe of radio frames.
As shown in Figure 4, be an instantiation of above-mentioned subframe binding configuration mode, descending sub frame 5,6 and special subframe 1 belong to same descending sub frame group, and descending sub frame 7 and 8 belongs to same descending sub frame group, and descending sub frame 9 and 0 belongs to same descending sub frame group.After the one or more subframes from 0,1,5,6,7,8 and 9 receive data, generate data for the descending sub frame that belongs to same descending sub frame group and receive feedback message, the data of other generation that then need on the same group do not receive feedback message, for example, receive data from subframe 1,5,6,7,8,9 and 0, it is correct that subframe 1,5,6,7 and 8 receives data, and subframe 9 and 0 receives error in data; Because 1,5 and 6 belong to same descending sub frame group, and Data Receiving is all correct, therefore be ACK message of 1,5 and 6 generations; 7 and 8 belong to same descending sub frame group, and Data Receiving is all correct, then are 7 and 8 another ACK message of generation; 9 and 0 belongs to same descending sub frame group, and Data Receiving is all failed, and then is NACK message of 9 and 0 generation; Then, will send for 1,5 and 6 ACK that generate, will send for 7 and 8 ACK that generate, will send for 9 and 0 NACK that generates by sub-frame of uplink 4 by sub-frame of uplink 3 by sub-frame of uplink 2.
Need to prove, shown in Figure 4 is not unique embodiment of corresponding subframe binding configuration mode, can also be that descending sub frame 0 and special subframe 1 belong to same descending sub frame group, descending sub frame 5,6,7 belongs to same descending sub frame group, and descending sub frame 8,9 belongs to same descending sub frame group.Or the like, repeat no more here.
For the ascending-descending subframes ratio is that 2: 7 and switching point cycle are the frame structure of 10ms, if realize covering grade 1, the subframe binding configuration mode is:
The whole descending sub frames and the special subframe of radio frames are divided into two descending sub frame groups according to permutation and combination, the sub-frame of uplink that each descending sub frame group is corresponding different respectively, subframe binding configuration information according to this configuration mode configuration is: comprise two descending sub frame groups, each descending sub frame group comprises whole descending sub frames of radio frames and at least two subframes in the special subframe, and the union of the subframe that comprised of described two descending sub frame groups comprises the whole descending sub frames and the special subframe of radio frames.
Shown in Fig. 5 A, be an instantiation of above-mentioned subframe binding configuration mode, descending sub frame 0,4,5 and special subframe 1 belong to a descending sub frame group, and descending sub frame 6,7,8 and 9 belongs to another descending sub frame group.After the one or more subframes from 0,1,4,5,6,7,8 and 9 receive data, generate data for the descending sub frame that belongs to same descending sub frame group and receive feedback message, the data of other generation that then need on the same group do not receive feedback message, for example, receive data from subframe 0,1,6 and 7, it is correct that subframe 0,1 and 6 receives data, and subframe 7 receives error in data; Because 0 and 1 belongs to same descending sub frame group, and Data Receiving is all correct, therefore be ACK message of 0 and 1 generation; And 6 and 7 belong to another descending sub frame group, and one of them Data Receiving failure, then is 6 and 7 to generate NACK message; Then, the ACK that generates is sent, the NACK that generates is sent by sub-frame of uplink 3 by sub-frame of uplink 2.
Need to prove, be not unique embodiment of corresponding subframe binding configuration mode shown in Fig. 5 A, can also be that descending sub frame 0,4,6,8 belongs to a descending sub frame group, and descending sub frame 5,7,9 and special subframe 1 belong to another descending sub frame group.Or the like, repeat no more here.
For the ascending-descending subframes ratio is that 2: 7 and switching point cycle are the frame structure of 10ms, if realize covering grade 2, the subframe binding configuration mode is:
The whole descending sub frames and the special subframe of radio frames are divided into four descending sub frame groups according to permutation and combination, corresponding same sub-frame of uplink of two descending sub frame groups wherein, corresponding another sub-frame of uplink of two other descending sub frame group, subframe binding configuration information according to this configuration mode configuration is: comprise four descending sub frame groups, each descending sub frame group comprises whole descending sub frames of radio frames and at least two subframes in the special subframe, and the union of the subframe that comprised of described four descending sub frame groups comprises the whole descending sub frames and the special subframe of radio frames.
Shown in Fig. 5 B, an instantiation for above-mentioned subframe binding configuration mode, descending sub frame 0 and special subframe 1 belong to same descending sub frame group, descending sub frame 4 and 5 belongs to same descending sub frame group, descending sub frame 6 and 7 belongs to same descending sub frame group, and descending sub frame 8 and 9 belongs to same descending sub frame group.After the one or more subframes from 0,1,4,5,6,7,8 and 9 receive data, generate data for the descending sub frame that belongs to same descending sub frame group and receive feedback message, the data of other generation that then need on the same group do not receive feedback message, for example, receive data from subframe 0,1,4,5,6,7,8 and 9, it is correct that subframe 0,1,6 and 7 receives data, and subframe 4,5,8 and 9 receives error in data; Because 0 and 1 belongs to same descending sub frame group, and Data Receiving is all correct, therefore be ACK message of 0 and 1 generation; 4 and 5 belong to another descending sub frame group, and Data Receiving all fails, and then are 4 and 5 to generate NACK message; 6 and 7 belong to same descending sub frame group, and Data Receiving is all correct, therefore are 6 and 7 another ACK message of generation; 8 and 9 belong to another descending sub frame group, and Data Receiving all fails, and then are 8 and 9 to generate another NACK message; Then, will and be that 4 and 5 NACK that generate send for 0 and 1 ACK that generates by sub-frame of uplink 2, will and be that 8 and 9 NACK that generate send for 6 and 7 ACK that generate by sub-frame of uplink 3.
Need to prove, shown in Fig. 5 B unique embodiment of corresponding subframe binding configuration mode, can also be that descending sub frame 0,4 belongs to same descending sub frame group, descending sub frame 5 and special subframe 1 belong to same descending sub frame group, descending sub frame 6,8 belongs to same descending sub frame group, and descending sub frame 7,9 belongs to same descending sub frame group.Or the like, repeat no more here.
For the ascending-descending subframes ratio is that 2: 7 and switching point cycle are the frame structure of 10ms, if realize covering class 4, the subframe binding configuration mode is:
The whole descending sub frames and the special subframe of radio frames are divided into eight descending sub frame groups, and promptly each descending sub frame group comprises a subframe; Corresponding same sub-frame of uplink of four descending sub frame groups wherein, corresponding another sub-frame of uplink of other four descending sub frame groups, subframe binding configuration information according to this configuration mode configuration is: comprise eight descending sub frame groups, each descending sub frame group comprises whole descending sub frames of radio frames and a subframe in the special subframe.
Be depicted as an instantiation of above-mentioned subframe binding configuration mode as Fig. 5 C.
For the ascending-descending subframes ratio is that 1: 8 and switching point cycle are the frame structure of 10ms, if realize covering grade 1, the subframe binding configuration mode is:
Whole descending sub frames of radio frames and special subframe are divided in same descending sub frame group, descending sub frame binding configuration information according to this configuration mode configuration is: comprise a descending sub frame group, this descending sub frame group comprises the whole descending sub frames and the special subframe of radio frames.
As shown in Figure 6A, an instantiation for above-mentioned subframe binding configuration mode, all descending sub frames 0,3,4,5,6,7,8,9 and special subframe 1 belong to same descending sub frame group, after the one or more subframes from 0,1,3,4,5,6,7,8 and 9 receive data, if Data Receiving is all correct, then generate ACK message; Otherwise, generate NACK message, then the message that generates is sent by sub-frame of uplink 2.
For the ascending-descending subframes ratio is that 1: 8 and switching point cycle are the frame structure of 10ms, if realize covering grade 2, the subframe binding configuration mode is:
The whole descending sub frames and the special subframe of radio frames are divided into two descending sub frame groups according to permutation and combination, subframe binding configuration information according to this configuration mode configuration is: comprise two descending sub frame groups, each descending sub frame group comprises whole descending sub frames of radio frames and at least two subframes in the special subframe, and the union of the subframe that comprised of described two descending sub frame groups comprises the whole descending sub frames and the special subframe of radio frames.
Shown in Fig. 6 B, be an instantiation of above-mentioned subframe binding configuration mode, descending sub frame 9,0,3,4 and special subframe 1 belong to a descending sub frame group, and descending sub frame 5,6,7 and 8 belongs to another descending sub frame group.After the one or more subframes from 0,1,3,4,5,6,7,8 and 9 receive data, generate data for the descending sub frame that belongs to same descending sub frame group and receive feedback message, the data of other generation that then need on the same group do not receive feedback message, for example, receive data from subframe 9,0,5 and 6, it is correct that subframe 9 and 5 receives data, and subframe 0 and 6 receives error in data; Because 9 and 0 belongs to same descending sub frame group, and one of them sub-frame data reception mistake, therefore be NACK message of 9 and 0 generation; And 5 and 6 belong to another descending sub frame group, and one of them sub-frame data receives mistake, then is 5 and 6 to generate another NACK message; Then, two NACK that will generate by sub-frame of uplink 2 send.
Need to prove, be not unique embodiment of corresponding subframe binding configuration mode shown in Fig. 6 B, can also be that descending sub frame 0,3,4 and special subframe 1 belong to a descending sub frame group, and descending sub frame 5,6,7,8,9 belongs to another descending sub frame group.Or the like, repeat no more here.
For the ascending-descending subframes ratio is that 1: 8 and switching point cycle are the frame structure of 10ms, if realize covering class 4, the subframe binding configuration mode is:
The whole descending sub frames and the special subframe of radio frames are divided into four descending sub frame groups according to permutation and combination, subframe binding configuration information according to this configuration mode configuration is: comprise four descending sub frame groups, each descending sub frame group comprises whole descending sub frames of radio frames and at least two subframes in the special subframe, and the union of the subframe that comprised of described four descending sub frame groups comprises the whole descending sub frames and the special subframe of radio frames.
Shown in Fig. 6 C, an instantiation for above-mentioned subframe binding configuration mode, descending sub frame 9,0 and special subframe 1 belong to same descending sub frame group, descending sub frame 3 and 4 belongs to same descending sub frame group, descending sub frame 5 and 6 belongs to same descending sub frame group, and descending sub frame 7 and 8 belongs to same descending sub frame group.After the one or more subframes from 0,1,3,4,5,6,7,8 and 9 receive data, generate data for the descending sub frame that belongs to same descending sub frame group and receive feedback message, the data of other generation that then need on the same group do not receive feedback message, for example, receive data from subframe 9,0,1,3,5,6,7 and 8, it is correct that subframe 9,0,1,3,5 and 6 receives data, and subframe 7 and 8 receives error in data; Because 9,0 and 1 belongs to same descending sub frame group, and Data Receiving is all correct, then be ACK message of 9,0 and 1 generation; And 3 belong to another descending sub frame group, and Data Receiving is correct, then is 3 to generate another ACK message; 5 and 6 belong to same descending sub frame group, and Data Receiving is all correct, then are 5 and 6 another ACK message of generation; 7 and 8 belong to same descending sub frame group, and the whole mistakes of Data Receiving, then are NACK message of 7 and 8 generations; Then, three ACK and a NACK that will generate by sub-frame of uplink 2 sends.
Need to prove, shown in Fig. 6 C unique embodiment of corresponding subframe binding configuration mode, can also be that descending sub frame 9,0 belongs to same descending sub frame group, descending sub frame 3 and special subframe 1 belong to same descending sub frame group, descending sub frame 4,5 belongs to same descending sub frame group, and descending sub frame 6,7 and 8 belongs to same descending sub frame group.Or the like, repeat no more here.
Many more descending sub frames are bound together, need the data receiving feedback signals amount of transmission just low more, transmission reliability is high more, and the covering grade of realization is just high more, but because many more data need to retransmit, will cause the throughput of system to descend.Suppose Packet Error Ratio P
eBe 10%, the retransmission probability of data receiving feedback signals is as shown in the table, and retransmission probability is by P
Re=1-(1-P
e)
nCalculate, n is the number of sub-frames that binds together.As can be seen, when n=9, corresponding ascending-descending subframes ratio is 1: 8, and its retransmission probability has reached 61%, and at this moment, throughput of system can seriously descend.To cover grade and throughput of system in order taking into account, can to adopt low covering grade as much as possible satisfying under the situation that covers requirement, to guarantee the throughput of system.
| The subframe binding number | Retransmission probability |
| n＝7 | 10％ |
| n＝2 | 19％ |
| n＝4 | 34％ |
| n＝9 | 61％ |
Step 22: on sub-frame of uplink, described data receiving feedback signals is sent;
During specific implementation,, determine the sub-frame of uplink of described a plurality of descending sub frame correspondences, the ascending control channel of described data receiving feedback signals by described sub-frame of uplink sent at first according to the corresponding configuration information of up-downgoing.Such as, for descending sub frame binding mode as shown in Figure 4, can dispose the up-downgoing corresponding relation: descending sub frame 1,5,6 corresponding sub-frame of uplink 2, descending sub frame 7,8 corresponding sub-frame of uplink 3, descending sub frame 9,0 corresponding sub-frame of uplink 4, according to this configuration information, sub-frame of uplink 2 is used to be sent as the data receiving feedback signals that descending sub frame 1,5,6 generates, sub-frame of uplink 3 is used to be sent as the data receiving feedback signals that descending sub frame 7,8 generates, and sub-frame of uplink 4 is used to be sent as the data receiving feedback signals that descending sub frame 9,0 generates.
Step 23: the base station receives described data receiving feedback signals, if this data receiving feedback signals is a Data Receiving success feedback signal, then the data that described a plurality of descending sub frames do not sent retransmit; If described data receiving feedback signals is a Data Receiving failure feedback signal, then the data that described a plurality of descending sub frames are sent are carried out retransmission process.
Concrete, suppose to adopt the descending sub frame binding mode shown in Fig. 5 A, the base station receives Data Receiving failure feedback message from sub-frame of uplink 3, then according to the up-downgoing corresponding informance that is configured in base station side, determine that this Data Receiving failure feedback message is the feedback message at subframe 6,7,8 and 9, therefore, the base station retransmits from subframe 6,7,8 and 9 data that send constantly to last one.For example adopt the descending sub frame binding mode shown in the 6C again, the base station receives Data Receiving failure feedback message from sub-frame of uplink 2, carry the sign of descending sub frame group 2 (the descending sub frame group that promptly comprises subframe 3 and 4) in this message, then according to the lid sign, determine that this Data Receiving failure feedback message is the feedback message at subframe 3 and 4, therefore, the base station retransmits from subframe 3 and 4 data that send constantly to last one.
Referring to Fig. 7, the embodiment of the invention also provides a kind of transmission system of data receiving feedback signals, and this system comprises terminal 70 and base station 71, wherein:
Terminal 70 is used for receiving the data from the base station on a plurality of descending sub frames, according to the Data Receiving situation of described a plurality of descending sub frames, generate a data receiving feedback signals, and on sub-frame of uplink described data receiving feedback signals is sent to the base station;
Base station 71 is used to receive described data receiving feedback signals, and when being Data Receiving success feedback signal as if described data receiving feedback signals, then decision does not retransmit the data that described a plurality of descending sub frames send; If when described data receiving feedback signals was Data Receiving failure feedback signal, then the data that described a plurality of descending sub frames are sent were carried out retransmission process.
Described terminal comprises receiving element, signal element and transmitting element, wherein:
Receiving element is used for receiving data on a plurality of descending sub frames;
Signal element is used for the Data Receiving situation according to described a plurality of descending sub frames, generates a data receiving feedback signals;
Transmitting element is used on sub-frame of uplink described data receiving feedback signals being sent.
Described signal element comprises successfully unit and failure unit, wherein:
The success unit when being used for all correctly receiving data on described a plurality of descending sub frames, generating data and receives successful feedback signal;
The failure unit is used for when described a plurality of descending sub frames have at least one descending sub frame to receive error in data, generates data feedback signal that takes defeat.
Described terminal further comprises:
Determining unit is used for determining whether described a plurality of descending sub frames satisfy the binding condition, when satisfying, indicates described signal element to generate a data receiving feedback signals.
As a kind of embodiment, described determining unit comprises first judging unit and first unit as a result, wherein:
First judging unit is used for according to the subframe binding configuration information, judges whether described a plurality of descending sub frame belongs to same descending sub frame group;
First unit as a result is used for determining that described a plurality of descending sub frame satisfies the binding condition when the described a plurality of descending sub frames of described first judgment unit judges belong to same descending sub frame group.
As another kind of embodiment, described determining unit comprises second judging unit and second unit as a result, wherein:
Second judging unit is used for according to the dispatch of receiving, judges that whether the data that receive on described a plurality of descending sub frames are by same dispatch scheduling;
Second unit as a result, being used in the data that described second judgment unit judges receives on described a plurality of descending sub frames is during by same dispatch scheduling, determines that described a plurality of descending sub frame satisfies the binding condition.
Described transmitting element comprises subframe unit and transmission unit, wherein:
Subframe unit is used for determining the sub-frame of uplink of described a plurality of descending sub frame correspondences according to the corresponding configuration information of up-downgoing;
Transmission unit is used for the ascending control channel of described data receiving feedback signals by described sub-frame of uplink sent.
Described base station comprises receiving element and processing unit, wherein:
Receiving element is used to receive described data receiving feedback signals;
Processing unit is used for when described data receiving feedback signals is Data Receiving success feedback signal, and decision does not retransmit the data that described a plurality of descending sub frames send; When described data receiving feedback signals is Data Receiving failure feedback signal, the data that described a plurality of descending sub frames send are carried out retransmission process.
Described processing unit comprises determining unit and retransmission unit, wherein:
Determining unit is used for the descending sub frame group id according to corresponding configuration information of up-downgoing or described data receiving feedback signals, determines to receive the sub-frame of uplink of described data receiving feedback signals corresponding to described a plurality of descending sub frames;
Retransmission unit is used for retransmitting according to the data whether described data receiving feedback signals decision sends described a plurality of descending sub frames.
Referring to Fig. 8, the embodiment of the invention also provides a kind of terminal, can be applied in the transmission system of data receiving feedback signals, and this terminal comprises receiving element 80, signal element 81 and transmitting element 82, wherein:
Receiving element 80 is used for receiving data on a plurality of descending sub frames;
Transmitting element 82 is used on sub-frame of uplink described data receiving feedback signals being sent.
The success unit when being used for all correctly receiving data on described a plurality of descending sub frames, generating data and receives successful feedback signal;
The failure unit is used for when described a plurality of descending sub frames have at least one descending sub frame to receive error in data, generates data feedback signal that takes defeat.
This terminal further comprises:
Determining unit 83 is used for determining whether described a plurality of descending sub frames satisfy the binding condition, when satisfying, indicates described signal element to generate a data receiving feedback signals.
As a kind of embodiment, determining unit 83 comprises first judging unit and first unit as a result, wherein:
First judging unit is used for according to the subframe binding configuration information, judges whether described a plurality of descending sub frame belongs to same descending sub frame group;
First unit as a result is used for determining that described a plurality of descending sub frame satisfies the binding condition when the described a plurality of descending sub frames of described first judgment unit judges belong to same descending sub frame group.
As another kind of embodiment, described determining unit comprises second judging unit and second unit as a result, wherein:
Second judging unit is used for according to the dispatch of receiving, judges that whether the data that receive on described a plurality of descending sub frames are by same dispatch scheduling;
Second unit as a result, being used in the data that described second judgment unit judges receives on described a plurality of descending sub frames is during by same dispatch scheduling, determines that described a plurality of descending sub frame satisfies the binding condition.
Transmitting element 82 comprises subframe unit and transmission unit, wherein:
Subframe unit is used for determining the sub-frame of uplink of described a plurality of descending sub frame correspondences according to the corresponding configuration information of up-downgoing;
Transmission unit is used for the ascending control channel of described data receiving feedback signals by described sub-frame of uplink sent.
Referring to Fig. 9, the embodiment of the invention also provides a kind of base station, and this base station comprises receiving element 90 and processing unit 91, wherein:
Receiving element 90, being used to receive the data receiving feedback signals of self terminal, this data receiving feedback signals is the data receiving feedback signals that described terminal pins generates the data that receive on a plurality of descending sub frames;
Processing unit 91 is used for when described data receiving feedback signals is Data Receiving success feedback signal, and decision does not retransmit the data that described a plurality of descending sub frames send; When described data receiving feedback signals is Data Receiving failure feedback signal, the data that described a plurality of descending sub frames send are carried out retransmission process.
Processing unit 90 comprises determining unit 100 and retransmission unit 101, wherein:
Determining unit 100 is used for the descending sub frame group id according to corresponding configuration information of up-downgoing or described data receiving feedback signals, determines to receive the sub-frame of uplink of described data receiving feedback signals corresponding to described a plurality of descending sub frames;
To sum up.Beneficial effect of the present invention is:
In the scheme that the embodiment of the invention provided, after receiving data on a plurality of descending sub frames, according to the Data Receiving situation of described a plurality of descending sub frames, generate a data receiving feedback signals, and on sub-frame of uplink, described data receiving feedback signals is sent.As seen,, can reduce the quantity of transmission data receiving feedback signals, thereby reduce system's implementation complexity, and save the channel resource expense by the data receiving feedback signals of a plurality of descending sub frames being merged into a data receiving feedback signals.
Further, provided among the present invention and realized that the covering grade is respectively 1,2 and 4 subframe binding scheme, improved the transmission performance under the multidata reception feedback message situation, guaranteed the covering requirement of sub-district.Cover the division of grade, the design that helps ascending control channel realizes.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (13)
1. the sending method of a data receiving feedback signals is characterized in that, this method comprises:
On a plurality of descending sub frames, receive data;
According to the subframe binding configuration information, judge whether described a plurality of descending sub frame belongs to same descending sub frame group, if determine that then described a plurality of descending sub frames satisfy the binding condition; Perhaps, according to the dispatch of receiving, whether the data of determining to receive on described a plurality of descending sub frames are by same dispatch scheduling, if determine that then described a plurality of descending sub frames satisfy the binding condition; When satisfying,, generate data receiving feedback signals according to the Data Receiving situation of described a plurality of descending sub frames;
On sub-frame of uplink, described data receiving feedback signals is sent.
2. the method for claim 1 is characterized in that, according to the Data Receiving situation of described a plurality of descending sub frames, generates data receiving feedback signals and comprises:
If on described a plurality of descending sub frames, all correctly receive data, then generate Data Receiving success feedback signal; Otherwise, generate data feedback signal that takes defeat.
3. the method for claim 1 is characterized in that, adopting the ascending-descending subframes ratio in radio frames is that described subframe binding configuration information is when 1: 3 and switching point cycle being the frame structure of 5ms:
Comprise a descending sub frame group, this descending sub frame group comprises the whole descending sub frames and the special subframe of field; Perhaps,
Comprise two descending sub frame groups, each descending sub frame group comprises whole descending sub frames of field and at least two subframes in the special subframe, and the union of the subframe that described two descending sub frame groups are comprised comprises the whole descending sub frames and the special subframe of field.
4. the method for claim 1 is characterized in that, adopting the ascending-descending subframes ratio in radio frames is that described subframe binding configuration information is when 3: 6 and switching point cycle being the frame structure of 10ms:
Comprise three descending sub frame groups, each descending sub frame group comprises whole descending sub frames of radio frames and at least two subframes in the special subframe, and the union of the subframe that comprised of described three descending sub frame groups comprises the whole descending sub frames and the special subframe of radio frames.
5. the method for claim 1 is characterized in that, adopting the ascending-descending subframes ratio in radio frames is that described subframe binding configuration information is when 2: 7 and switching point cycle being the frame structure of 10ms:
Comprise two descending sub frame groups, each descending sub frame group comprises whole descending sub frames of radio frames and at least two subframes in the special subframe, and the union of the subframe that comprised of described two descending sub frame groups comprises the whole descending sub frames and the special subframe of radio frames; Perhaps,
Comprise four descending sub frame groups, each descending sub frame group comprises whole descending sub frames of radio frames and at least two subframes in the special subframe, and the union of the subframe that comprised of described four descending sub frame groups comprises the whole descending sub frames and the special subframe of radio frames.
6. the method for claim 1 is characterized in that, adopting the ascending-descending subframes ratio in radio frames is that described subframe binding configuration information is when 1: 8 and switching point cycle being the frame structure of 10ms:
Comprise a descending sub frame group, this descending sub frame group comprises whole descending sub frames and the special subframe in the radio frames; Perhaps,
Comprise two descending sub frame groups, each descending sub frame group comprises whole descending sub frames of radio frames and at least two subframes in the special subframe, and the union of the subframe that comprised of described two descending sub frame groups comprises the whole descending sub frames and the special subframe of radio frames; Perhaps,
Comprise four descending sub frame groups, each descending sub frame group comprises whole descending sub frames of radio frames and at least two subframes in the special subframe, and the union of the subframe that comprised of described four descending sub frame groups comprises the whole descending sub frames and the special subframe of radio frames.
7. the method for claim 1 is characterized in that, described data receiving feedback signals is sent to comprise on sub-frame of uplink:
According to the corresponding configuration information of up-downgoing, determine the sub-frame of uplink of described a plurality of descending sub frame correspondences, the ascending control channel of described data receiving feedback signals by described sub-frame of uplink sent.
8. the method for claim 1 is characterized in that, this method further comprises:
The base station receives described data receiving feedback signals, if described data receiving feedback signals is a Data Receiving success feedback signal, then the data that described a plurality of descending sub frames do not sent retransmit; If described data receiving feedback signals is a Data Receiving failure feedback signal, then the data that described a plurality of descending sub frames are sent are carried out retransmission process.
9. a terminal is characterized in that, this terminal comprises:
Receiving element is used for receiving data on a plurality of descending sub frames;
Determining unit comprises first judging unit, first unit, second judging unit and second unit as a result as a result; Described first judging unit is used for according to the subframe binding configuration information, judges whether described a plurality of descending sub frame belongs to same descending sub frame group; Described first unit as a result is used for determining that described a plurality of descending sub frame satisfies the binding condition when the described a plurality of descending sub frames of described first judgment unit judges belong to same descending sub frame group; Described second judging unit is used for according to the dispatch of receiving, judges that whether the data that receive on described a plurality of descending sub frames are by same dispatch scheduling; Described second unit as a result, being used in the data that described second judgment unit judges receives on described a plurality of descending sub frames is during by same dispatch scheduling, determines that described a plurality of descending sub frame satisfies the binding condition;
Signal element is used for the Data Receiving situation according to described a plurality of descending sub frames, generates data receiving feedback signals;
Transmitting element is used on sub-frame of uplink described data receiving feedback signals being sent.
10. terminal as claimed in claim 9 is characterized in that, described signal element comprises:
The success unit when being used for all correctly receiving data on described a plurality of descending sub frames, generating data and receives successful feedback signal;
The failure unit is used for when described a plurality of descending sub frames have at least one descending sub frame to receive error in data, generates data feedback signal that takes defeat.
11. terminal as claimed in claim 9 is characterized in that, described transmitting element comprises:
Subframe unit is used for determining the sub-frame of uplink of described a plurality of descending sub frame correspondences according to the corresponding configuration information of up-downgoing;
Transmission unit is used for the ascending control channel of described data receiving feedback signals by described sub-frame of uplink sent.
12. the transmission system of a data receiving feedback signals is characterized in that, this system comprises:
Terminal comprises receiving element, signal element, transmitting element and determining unit; Described receiving element is used for receiving data on a plurality of descending sub frames; Described signal element is used for the Data Receiving situation according to described a plurality of descending sub frames, generates data receiving feedback signals; Described transmitting element is used on sub-frame of uplink described data receiving feedback signals being sent; Described determining unit comprises first judging unit, first unit, second judging unit and second unit as a result as a result; Described first judging unit is used for according to the subframe binding configuration information, judges whether described a plurality of descending sub frame belongs to same descending sub frame group; Described first unit as a result is used for determining that described a plurality of descending sub frame satisfies the binding condition when the described a plurality of descending sub frames of described first judgment unit judges belong to same descending sub frame group; Described second judging unit is used for according to the dispatch of receiving, judges that whether the data that receive on described a plurality of descending sub frames are by same dispatch scheduling; Described second unit as a result, being used in the data that described second judgment unit judges receives on described a plurality of descending sub frames is during by same dispatch scheduling, determines that described a plurality of descending sub frame satisfies the binding condition;
The base station comprises receiving element and processing unit; Described receiving element is used to receive described data receiving feedback signals; Described processing unit is used for when described data receiving feedback signals is Data Receiving success feedback signal, and decision does not retransmit the data that described a plurality of descending sub frames send; When described data receiving feedback signals is Data Receiving failure feedback signal, the data that described a plurality of descending sub frames send are carried out retransmission process.
13. system as claimed in claim 12 is characterized in that, described signal element comprises:
The success unit when being used for all correctly receiving data on described a plurality of descending sub frames, generating data and receives successful feedback signal;
The failure unit is used for when described a plurality of descending sub frames have at least one descending sub frame to receive error in data, generates data feedback signal that takes defeat.
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| KR20180137010A (en) * | 2016-05-12 | 2018-12-26 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Feedback message transmission method, feedback message processing method and apparatus |
| CN112039643B (en) | 2016-09-26 | 2022-04-12 | 华为技术有限公司 | Method and device for transmitting feedback information |
| CN109565807A (en) * | 2017-01-06 | 2019-04-02 | 华为技术有限公司 | A kind of scheduling of uplink control signal, transmission method and equipment |
| CN111405609B (en) * | 2019-01-02 | 2023-04-07 | 中国移动通信有限公司研究院 | Data transmission method, device, system, medium and equipment |
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| CN1481175A (en) * | 2002-08-06 | 2004-03-10 | ������������ʽ���� | Method for reporting transmitting channel quality between transmitter and receiver |
| CN101047431A (en) * | 2006-06-22 | 2007-10-03 | 华为技术有限公司 | Method for implementing mixed automatic retransmit in communication system containing repeater station |
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| CN101047431A (en) * | 2006-06-22 | 2007-10-03 | 华为技术有限公司 | Method for implementing mixed automatic retransmit in communication system containing repeater station |
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