CN104782097A - Method and device for calculating quantity of encoded data packets transmitted within broadcast system - Google Patents
Method and device for calculating quantity of encoded data packets transmitted within broadcast system Download PDFInfo
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- CN104782097A CN104782097A CN201380001402.7A CN201380001402A CN104782097A CN 104782097 A CN104782097 A CN 104782097A CN 201380001402 A CN201380001402 A CN 201380001402A CN 104782097 A CN104782097 A CN 104782097A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/203—Details of error rate determination, e.g. BER, FER or WER
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0093—Point-to-multipoint
Abstract
Provided are a method and a device for calculating the quantity of broadcast data packets. In the absence of closed-loop feedback, the specific number of encoded data packets can still be determined. On the premise that the success rate of data packet transmission is ensured, excessive wastage is thereby avoided. The specific implementation mode is: a first parameter is obtained; a block error ratio is obtained according to the first parameter, or, when preset conditions are met, the block error ratio is obtained according to a second parameter; according to the block error ratio, the actual number of encoded data packets is obtained. The present invention is used to calculate the specific transmission quantity of broadcast data packets.
Description
The present invention relates to the computational methods and equipment of the coded data packet quantity sent in the communications field, more particularly to a kind of broadcast system for the computational methods and equipment technical field of the coded data packet quantity sent in a kind of broadcast system.
Background technology is current, is provided in 3GPP LTE R12 content：In equipment room（Device To Device, D2D) communication in, the closed loop feedback without physical layer（Closed Loop ) .This can cause to use fountain coding in transmitting terminal（Fountain Coding) in the case of, the physical layer closed loop feedback information from receiver can not be obtained due to emitter, therefore emitter can not confirm whether receiver proper reception of sufficient amount of packet, and then emitter not can determine that correct number that is to be launched and ensureing the coded data packet that receiving terminal is received.When the coded data packet quantity that emitter is launched is excessive, it can be received meeting receiver outside coded data packet, cause the waste of the communication resource, and when the coded data packet of transmitting is inadequate, then can not ensure the reliability of communication.
Content of the invention embodiments of the invention provide the computational methods and equipment of the coded data packet quantity sent in a kind of broadcast system, can be in the case of in the absence of closed loop feedback, it still can determine specific coded data packet number, on the premise of ensureing that packet sends success rate, excessive waste is not caused.To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：First aspect includes there is provided a kind of computational methods of broadcast data packet quantity, methods described：According to the first parameter estimation data channel signal to noise ratio；According to the data channel signal to noise ratio, with reference to specific broadcast system parameter, the actual coding number of data packets sent.In the first possible implementation, with reference in a first aspect, first parameter at least includes farthest broadcast distances.
In second of possible implementation, with reference in a first aspect, described include according to the first parameter estimation channel SNRs：According to first parameter, the corresponding path loss values of the data channel are obtained；According to the corresponding path loss values of the data channel, the signal to noise ratio of presently described data channel is obtained.In the third possible implementation, with reference in a first aspect, described according to the data channel signal to noise ratio, with reference to specific broadcast parameter, the actual coding number of data packets sent is specifically included：It is described according to the data channel signal to noise ratio, get the corresponding bLock error rate of the channel SNRs；According to the bLock error rate and the specific broadcast system parameter, the actual coding number of data packets of the transmission is obtained.
Second aspect includes there is provided a kind of computational methods of the coded data packet quantity sent in broadcast system, methods described：When meeting preparatory condition, the second parameter is fed back to emitter；The emitter determines the corresponding data channel signal to noise ratio of second parameter, and determine the corresponding bLock error rate of the data channel signal to noise ratio according to second parameter received；The emitter determines actual coding number of data packets according to the bLock error rate with reference to specific broadcast parameter.In the first possible implementation, with reference to second aspect, second parameter at least includes system reference or the corresponding signal to noise ratio of synchronizing signal.
In second of possible implementation, with reference to second aspect, the preparatory condition that meets is specifically included：When second parameter is less than predetermined threshold value, second parameter is fed back to the emitter.In the third possible implementation, with reference to second aspect, the emitter determines the corresponding data channel signal to noise ratio of second parameter, and determine according to second parameter received
The corresponding bLock error rate of the data channel signal to noise ratio is specifically included：The emitter selects minimum value in second parameter received, and obtains the corresponding channel SNRs of the minimum value, obtains the corresponding bLock error rate of the channel SNRs.
The third aspect there is provided a kind of computing device of broadcast data packet quantity, including：Signal-to-noise ratio computation unit, for according to the first parameter estimation data channel signal to noise ratio；Number decision unit, for according to the data channel signal to noise ratio, with reference to specific broadcast system parameter, the actual coding number of data packets sent.
In the first possible implementation, with reference to the third aspect, first parameter at least includes farthest broadcast distances.
In second of possible implementation, with reference to the third aspect, the signal-to-noise ratio computation unit includes：Path loss calculation subelement, for according to first parameter, obtaining the corresponding path loss values of the data channel；Signal-to-noise ratio computation subelement, for according to the corresponding path loss values of the data channel, obtaining the signal to noise ratio of presently described data channel.
In the third possible implementation, the number decision unit is specifically included：Error rate calculation subelement, for according to the data channel signal to noise ratio, getting the corresponding bLock error rate of the data channel signal to noise ratio；
Packet determination subelement, for according to the bLock error rate and the specific broadcast system parameter, obtaining the actual coding number of data packets of the transmission.Fourth aspect includes there is provided a kind of computing device of the coded data packet quantity sent in broadcast system, the equipment：Feedback unit, for when meeting preparatory condition, the second parameter to be fed back to emitter；Bit error rate determining unit, for the emitter according to second parameter received, determines the corresponding data channel signal to noise ratio of second parameter, and determine the corresponding bLock error rate of the data channel signal to noise ratio；
Number decision unit, for the emitter according to the bLock error rate, actual coding number of data packets is determined with reference to specific broadcast parameter.In the first possible implementation, with reference to fourth aspect, second parameter at least includes system reference or the corresponding signal to noise ratio of synchronizing signal.
In second of possible implementation, with reference to fourth aspect, the preparatory condition that meets is specifically included：When second parameter is less than predetermined threshold value, second parameter is fed back to the emitter.In the third possible implementation, with reference to fourth aspect, the bit error rate determining unit specifically for：The emitter selects minimum value in second parameter received, and obtains the corresponding channel SNRs of the minimum value, obtains the corresponding bLock error rate of the channel SNRs.5th aspect is there is provided a kind of computing device of the coded data packet quantity sent in broadcast system, and described device includes：First processor, for according to the first parameter estimation channel SNRs；The first processor, is additionally operable to according to the data channel signal to noise ratio, with reference to specific broadcast system parameter, the actual coding number of data packets sent.In the first possible implementation, with reference to the 5th aspect, first parameter at least includes farthest broadcast distances.
In second of possible implementation, with reference to the 5th aspect, the first processor specifically for：
According to first parameter, the corresponding path loss values of the channel are obtained；According to the corresponding path loss values of the channel, the signal to noise ratio of current data channel is obtained.In the third possible implementation, with reference to the 5th aspect, the first processor also particularly useful for：According to the data channel signal to noise ratio, the corresponding bLock error rate of the channel SNRs is got；
According to the bLock error rate and the specific broadcast system parameter, the actual coding number of data packets of the transmission is obtained.6th aspect is there is provided a kind of computing device of the coded data packet quantity sent in broadcast system, and described device includes：Transmitter, for when meeting preparatory condition, the second parameter to be fed back to emitter；Second processor, for the emitter according to second parameter received, determines the corresponding data channel signal to noise ratio of second parameter, and determine the corresponding bLock error rate of the data channel signal to noise ratio；The second processor, is additionally operable to the emitter according to the bLock error rate, actual coding number of data packets is determined with reference to specific broadcast parameter.In the first possible implementation, with reference to the 6th aspect, second parameter at least includes system reference or the corresponding signal to noise ratio of synchronizing signal.
In second of possible implementation, the preparatory condition that the transmitter is met includes：When second parameter is less than predetermined threshold value, second parameter is fed back to the emitter.In the third possible implementation, the second processor specifically for：The emitter selects minimum value in second parameter received, and obtains the corresponding channel SNRs of the minimum value, obtains the corresponding bLock error rate of the data channel signal to noise ratio.The computational methods and equipment of a kind of broadcast data packet quantity provided in an embodiment of the present invention, by obtaining the first parameter, and according to the first parameter acquiring bLock error rate, or when meeting preparatory condition according to the second parameter acquiring to bLock error rate, and according to bLock error rate obtain send actual coding number of data packets；So as in the case of in the absence of closed loop feedback, still can determine the number of specific coded data packet, on the premise of ensureing that packet sends success rate, excessive waste is not caused.
Brief description of the drawings in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, will be briefly described to the required accompanying drawing used in embodiment or description of the prior art below, it is clear that
Ground, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, and other accompanying drawings can also be obtained according to these accompanying drawings.Fig. 1 provides a kind of schematic diagram of the computational methods of broadcast data packet quantity for the embodiment of the present invention；
Fig. 2 provides the schematic diagram of the computational methods of another broadcast data packet quantity for the embodiment of the present invention；
Fig. 3 provides a kind of detailed maps of the computational methods of broadcast data packet quantity for the embodiment of the present invention；
Fig. 4 provides a kind of detailed maps of the computational methods of broadcast data packet quantity for the embodiment of the present invention；
Fig. 5 is the detailed maps of the computational methods of another broadcast data packet quantity provided in an embodiment of the present invention；Fig. 6 provides a kind of structural representation of the computing device of broadcast data packet quantity for the embodiment of the present invention；
Fig. 7 provides a kind of concrete structure schematic diagram of the computing device of broadcast data packet quantity for the embodiment of the present invention；
Fig. 8 provides a kind of concrete structure schematic diagram of the computing device of broadcast data packet quantity for the embodiment of the present invention；
Fig. 9 provides a kind of structural representation of the computing device of broadcast data packet quantity for the embodiment of the present invention；
Figure 10 provides a kind of structural representation of the computing device of broadcast data packet quantity for the embodiment of the present invention；Fig. 11 provides a kind of structural representation of the computing device of broadcast data packet quantity for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.The embodiment of the present invention provides a kind of computational methods of broadcast data packet quantity, and as shown in Fig. 1, this method includes：
101st, according to the first parameter estimation channel SNRs；
102nd, according to the channel SNRs, with reference to specific broadcast system parameter, the actual coding number of data packets sent.A kind of computational methods of broadcast data packet quantity provided in an embodiment of the present invention, by obtaining the first parameter, and according to the first parameter acquiring bLock error rate, obtain the actual coding number of data packets sent according to bLock error rate afterwards；So as in the case of in the absence of closed loop feedback, still can determine the number of specific coded data packet, on the premise of ensureing that packet sends success rate, excessive waste is not caused.Relative to a upper method, the embodiment of the present invention also provides the computational methods of another broadcast data packet quantity, as shown in Fig. 2 this method includes：
201st, when meeting preparatory condition, the second parameter is fed back to emitter；
202nd, the emitter determines the corresponding channel SNRs of second parameter, and determine the corresponding bLock error rate of the channel SNRs according to second parameter received；
203rd, the emitter is according to the bLock error rate, the actual coding number of data packets for determining to send with reference to specific broadcast parameter.A kind of computational methods of broadcast data packet quantity provided in an embodiment of the present invention, by when meeting preparatory condition, the second parameter is fed back to emitter, the emitter is according to second parameter received, determine the corresponding channel SNRs of second parameter, and the corresponding bLock error rate of the channel SNRs is determined, the emitter determines actual coding number of data packets according to the bLock error rate with reference to specific broadcast parameter；So as in the case of in the absence of closed loop feedback, still
The number of specific coded data packet is can determine, on the premise of ensureing that packet sends success rate, excessive waste is not caused.
In order that those skilled in the art can be more clearly understood that technical scheme provided in an embodiment of the present invention, below by specific embodiment, another method for producing data provided in an embodiment of the present invention is carried out bright with describing in detail.The embodiment of the present invention also provides a kind of computational methods of detailed broadcast data packet quantity, such as schemes
Shown in 3, this method is specifically included：
301st, according to the first parameter estimation channel SNRs.
302nd, according to the channel SNRs, with reference to specific broadcast parameter, the actual coding number of data packets sent.
Wherein, as shown in figure 3, step 301 is specifically included：
301 1, according to first parameter, the corresponding path loss values of the channel are obtained；
3012nd, according to the corresponding path loss values of the channel, the signal to noise ratio of current data channel is obtained.In the present embodiment, the first parameter refers to that farthest broadcast distances, that is, emitter need to cover the distance residing for farthest receiver, and certainly, the first parameter can also be by other embodiment modes.
Here path loss values, that is, Path Loss (PL), are due to the loss value that the transmission environment of electromagnetic wave is caused.
It is corresponding, as shown in figure 4, step 302 is specifically included：
3021st, according to data channel signal to noise ratio, the corresponding bLock error rate of the channel SNRs is got；
3022nd, according to the bLock error rate and the specific broadcast system parameter, the actual coding number of data packets of the transmission is obtained.
Here bLock error rate is Block Error Ratio (BLER), refer to error block and total data block number purpose ratio during communication data transfer, the bit error rate is higher, shows that the packet that the data of transmission are not received normally is more.
Specific broadcast parameter therein is referred to：Channel type, the signal modulating method of physical layer use and specific type of coding that current transmission communication data is used etc., these parameters are all to carry out selection according to actual signal intelligence.Below by way of example, the illustratively detailed process of this method.First, emitter, according to the design parameter of current com-munication environment, obtains the path loss of current com-munication environment before specific communication data packet is sent.For example：The scheduled target maximum distance of present communications is 2.4 kilometers, and the frequency of carrier wave frequency range is 2GHz, a width of 10MHz of band of communication system, and the maximum transmit power of emitter is lOdBm, by above parameter, with reference to the formula for calculating path loss：
PL = 32·45 + 20Η Μ Η ζ))+20 lg d (km)+Δ, in the formula,PLIt is the abbreviation of path loss, 32.45 be the classical parameter value obtained under a large amount of emulation experiments ,/(M fe) it is carrier frequency in the communication environment, unit is MHz, refers to the scheduled target maximum distance of this communication, unit is km, Δ be then before communicating, it is pre-set by transmitter and receiver, be directed to the offset value calculation in this communication environment.When △ value is 4, above-mentioned data are brought into formula, so as to have：
The log d (Km) of the log f of PL=32.45+20 (MHz)+20+path loss values of the lOtffi of Δ=32.45+66+7.6+4 1 namely in this communication environment are 1 10dB.Secondly, it is determined that after path loss, the signal to noise ratio of present channel is obtained further according to the path loss values got.Specifically calculation formula is： 57W=P-^-(- 174+101g (/Offfe))), wherein PL is the path loss calculated of previous step, here/(ware) be bandwidth value, unit is Hz.P in formula is the transmission power of emitter, and unit is dBm.
Above-mentioned data are substituted into, can be obtained《\«= 10 -110 _ (-174 + 1(^(10 * 106))) = 4^.Again, according to the signal to noise ratio and the corresponding relation of bLock error rate obtained by mass data simulation result, when obtaining current signal for 4dB, corresponding bLock error rate.For example：It is currently employed that and physical layer uses QPSK modulation for EVA channels,
With 1/3 Turbo coding method, obtained BLER is 10%.Finally, according to the current bLock error rate and the redundancy of transmission coding got, actual coding bag number under this condition is obtained.
Assuming that currently employed fountain codes（Fountain Coding) need to ensure that decoding failure rate is that redundancy corresponding to ^ is 5%, then the actual coding number of data packets of final emitter can be calculated according to 1-10%.Wherein K is the number of data packets that emitter is originally inputted, and 5% is the current redundancy on the premise of decoding failure rate is ensured of emitter, 10% bLock error rate to obtain before.W=* the l.n obtained from above-mentioned data are then final coding bag number.The computational methods of the coded data packet quantity sent in a kind of broadcast system provided in an embodiment of the present invention, by obtaining the first parameter, and according to the first parameter acquiring bLock error rate, obtain actual coding number of data packets according to bLock error rate afterwards；So as in the case of in the absence of closed loop feedback, still can determine the number of specific coded data packet, on the premise of ensureing that packet sends success rate, excessive waste is not caused.The embodiment of the present invention also provides a kind of computational methods of broadcast data packet quantity, as shown in figure 5, this method includes：
401st, when meeting preparatory condition, the second parameter is fed back to emitter；
402nd, the emitter determines the corresponding data channel signal to noise ratio of second parameter, and determine the corresponding bLock error rate of the data channel signal to noise ratio according to second parameter received；
403rd, the emitter determines actual coding number of data packets according to the bLock error rate with reference to specific broadcast parameter.Wherein, second parameter at least includes system reference or the corresponding signal to noise ratio of synchronizing signal.Preparatory condition is met to specifically include：When second parameter is less than predetermined threshold value, second parameter is fed back to the emitter.Step 402 is specifically included：
4021st, the emitter selects minimum value in second parameter received, and obtains
The corresponding channel SNRs of the minimum value, according to the corresponding bLock error rate of the channel SNRs.In the present embodiment, the second parameter is Reference Signal Received Quality（Reference Signal Received Quality, RSRQ), certainly, the second parameter can also be by other embodiment modes.Here RSRQ is the discovery Discover stages in connection setup, and the RSRQ of the Discover signals received is sent from user equipment to cluster head Cluster Header.Below by way of example, the illustratively detailed process of this method.First, when meeting preparatory condition, to emitter feedback reference signal receiving quality RSRQ.Specifically, in the Discover stages of connection setup, each D2D user equipmenies can receive Discover signals, and after the receipt, the RSRQ for the Discover signals that cluster head CH feedback reception of the meeting belonging to user equipment is arrived, cluster head CH can send the RSRQ that each user equipment feeds back to emitter.It is noted that in order to reduce resource occupation to a certain extent, each user equipment can also in one threshold value of setting themselves, only when receiving the RSRQ of Discover signals in the threshold value less than setting, just fed back to affiliated cluster head CH.Secondly, receiver is after the RSRQ of feedback is received, according to the RSRQ received, determines that the emitter uses the signal to noise ratio of channel, and determine corresponding bLock error rate according to signal to noise ratio.
Specifically, signal to noise ratio and RSRQ have following corresponding relation, SNR=RSI^+, wherein refer to signal to noise ratio, the minimum value in the RSRQ that receives is referred to, and Δ is then the corresponding offset of difference between RS signals and data channel.For example, when using EVA channels, in the case of being encoded using QP SK modulation and 1/3 Turbo, if now ^ gangsters are 3dB, and △ values are 0, can be obtained《Numerical value now be 3dB, the related data obtained according to a large amount of emulation experiments can be obtained《Corresponding bLock error rate is 20% when W is 3dB.When specific transmission environment is different, different △ values are brought into above-mentioned formula, obtaining corresponding《After, corresponding bLock error rate is obtained after the same method.Finally, according to the current bLock error rate and the redundancy of transmission coding got, actual coding bag number under this condition is obtained.
Assuming that currently employed fountain codes（Fountain Coding) need to ensure that decoding failure probability is
ιο_1ΰCorresponding redundancy be 5%, then according to ι _2ο % can calculate the actual coding number of data packets of final emitter.Wherein Κ is the number of data packets that emitter is originally inputted, and 5% is the current redundancy on the premise of decoding failure probability is ensured of emitter, 20% bLock error rate to obtain before.W=* the 1J1 obtained from above-mentioned data are then final coding bag number.A kind of computational methods of broadcast data packet quantity provided in an embodiment of the present invention, by when meeting preparatory condition, the second parameter is fed back to emitter, the emitter is according to second parameter received, determine the corresponding data channel signal to noise ratio of second parameter, and the corresponding bLock error rate of the data channel signal to noise ratio is determined, the emitter determines actual coding number of data packets according to the bLock error rate with reference to specific broadcast parameter；So as in the case of in the absence of closed loop feedback, still can determine specific coded data packet number, on the premise of ensureing that packet sends success rate, excessive waste is not caused.The embodiment of the present invention provides a kind of computing device 5 of broadcast data packet quantity, as shown in fig. 6, the equipment also includes：Signal-to-noise ratio computation unit 51, for according to the first parameter estimation data channel signal to noise ratio；Number decision unit 52, for according to the data channel signal to noise ratio, with reference to specific broadcast system parameter, the actual coding number of data packets sent.First parameter therein at least includes farthest broadcast distances.Wherein, as shown in fig. 7, signal-to-noise ratio computation unit 51 includes：Path loss calculation subelement 511, for according to the data channel signal to noise ratio, obtaining the corresponding path loss values of the data channel；Signal-to-noise ratio computation subelement 512, for according to the corresponding path loss values of the data channel, obtaining the signal to noise ratio of presently described data channel.Similar, as shown in figure 8, number decision unit 52 is specifically included：Error rate calculation subelement 521, for according to the data channel signal to noise ratio, getting the corresponding bLock error rate of the data channel signal to noise ratio；
Packet determination subelement 522, for according to the bLock error rate and the specific broadcast parameter, obtaining the actual coding number of data packets of the transmission.A kind of computing device of broadcast data packet quantity provided in an embodiment of the present invention, by obtaining the first parameter, and according to the first parameter acquiring bLock error rate, obtains actual coding number of data packets according to bLock error rate afterwards；So as in the case of in the absence of closed loop feedback, still can determine specific coded data packet number, on the premise of ensureing that packet sends success rate, excessive waste is not caused.The embodiment of the present invention also provides a kind of computing device 6 of the coded data packet quantity sent in broadcast system, as shown in figure 9, the equipment 6 includes：Feedback unit 61, for when meeting preparatory condition, the second parameter to be fed back to emitter；Bit error rate determining unit 62, for the emitter according to second parameter received, determines the corresponding data channel signal to noise ratio of second parameter, obtains the corresponding bLock error rate of the data channel signal to noise ratio；Number decision unit 63, for the emitter according to the bLock error rate, actual coding number of data packets is determined with reference to specific broadcast parameter.Second parameter at least includes system reference or the corresponding signal to noise ratio of synchronizing signal.Wherein, feedback unit 61 needs the preparatory condition met to specifically include；When second parameter is less than predetermined threshold value, second parameter is fed back to the emitter.Bit error rate determining unit 62 specifically for：The emitter selects minimum value in second parameter received, and obtains the corresponding channel SNRs of the minimum value, obtains the corresponding bLock error rate of the channel SNRs.A kind of computing device of broadcast data packet quantity provided in an embodiment of the present invention, by when meeting preparatory condition, the second parameter is fed back to emitter, the emitter is according to second parameter received, determine the corresponding channel SNRs of second parameter, and the corresponding bLock error rate of the channel SNRs is obtained, the emitter determines actual coding number of data packets according to the bLock error rate with reference to specific broadcast parameter；So as in the case of in the absence of closed loop feedback, still can determine specific coded data packet number, on the premise of ensureing that packet sends success rate,
Excessive waste is not caused.The embodiment of the present invention also provides the computing device 7 that coded data packet quantity is sent in a kind of broadcast system, and as shown in Figure 10, the device 7 includes：Bus 71;And memory 72, processor 73, receiver 74 and transmitter 75 in bus 71 are connected to, wherein memory 72 is used to store dependent instruction, and the processor 73, which performs dependent instruction, to be used for according to the first parameter estimation data channel signal to noise ratio；The processor 73 performs dependent instruction and is additionally operable to according to the data channel signal to noise ratio, with reference to specific broadcast system parameter, the actual coding number of data packets sent.In embodiments of the present invention, optionally, the computing device dependent instruction is used for according in the first parameter estimation data channel signal to noise ratio, and first parameter at least includes farthest broadcast distances.In embodiments of the present invention, optionally, the computing device dependent instruction is used to be specifically included according to the first parameter estimation data channel signal to noise ratio：According to first parameter, the corresponding path loss values of the data channel are obtained；According to the corresponding path loss values of the data channel, the signal to noise ratio of presently described data channel is obtained.In embodiments of the present invention, optionally, the computing device dependent instruction is used for according to the data channel signal to noise ratio, and with reference to specific broadcast system parameter, the actual coding number of data packets sent is specifically included：It is described according to the data channel signal to noise ratio, get the corresponding bLock error rate of the data channel signal to noise ratio；According to the bLock error rate and the specific broadcast system parameter, the actual coding number of data packets of the transmission is obtained.Therefore, the computing device of a kind of broadcast data packet quantity provided in an embodiment of the present invention, by obtaining the first parameter, and according to the first parameter acquiring bLock error rate, obtains actual coding number of data packets according to bLock error rate afterwards；So as in the case of in the absence of closed loop feedback, still can determine specific coded data packet number, on the premise of ensureing that packet sends success rate, excessive waste is not caused.The embodiment of the present invention also provides the calculating dress that coded data packet quantity is sent in a kind of broadcast system
8 are put, as shown in Fig. 11, the device 8 includes：Bus 81;And it is connected to memory 82, processor 83, receiver 84 and transmitter 85 in bus 81, wherein memory 82 is used to store dependent instruction, the processor 83, which performs dependent instruction, to be used for when meeting preparatory condition, and the second parameter is fed back to emitter；The processor 83, which performs dependent instruction, is used for the emitter according to second parameter received, determines the corresponding data channel signal to noise ratio of second parameter, and determine the corresponding bLock error rate of the data channel signal to noise ratio；The processor 83, which performs dependent instruction, is used for the emitter according to the bLock error rate, and actual coding number of data packets is determined with reference to specific broadcast parameter.In embodiments of the present invention, optionally, the processor 83, which performs dependent instruction, is used for second parameter of the emitter in second parameter received at least including system reference or the corresponding signal to noise ratio of synchronizing signal.In embodiments of the present invention, optionally, the processor 83 performs dependent instruction and specifically included for preparatory condition of the emitter in second parameter received：When second parameter is less than predetermined threshold value, second parameter is fed back to the emitter.The processor 83, which performs dependent instruction, is used for the emitter according to second parameter received, determines the corresponding data channel signal to noise ratio of second parameter, and determine that the corresponding bLock error rate of the data channel signal to noise ratio is specifically included：The emitter selects minimum value in second parameter received, and obtains the corresponding channel SNRs of the minimum value, obtains the corresponding bLock error rate of the channel SNRs.A kind of computing device of broadcast data packet quantity provided in an embodiment of the present invention, by when meeting preparatory condition, the second parameter is fed back to emitter, the emitter is according to second parameter received, determine the corresponding channel SNRs of second parameter, and the corresponding bLock error rate of the channel SNRs is obtained, the emitter determines actual coding number of data packets according to the bLock error rate with reference to specific broadcast parameter；So as in the case of in the absence of closed loop feedback, still can determine specific coded data packet number, on the premise of ensureing that packet sends success rate, excessive waste is not caused.It is apparent to those skilled in the art that, for convenience and simplicity of description, the specific work process of the system, apparatus, and unit of foregoing description may be referred to preceding method embodiment
In corresponding process, will not be repeated here.In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be realized by another way.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.The unit illustrated as separating component can be or may not be physically separate, the part shown as unit can be or may not be physical location, a place can be located at, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or the independent physics of unit includes, can also two or more units it is integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can be completed by the related hardware of programmed instruction, foregoing program can be stored in a computer read/write memory medium, the program upon execution, performs the step of including above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (22)
- Claims1st, the computational methods of the coded data packet quantity sent in a kind of broadcast system, it is characterised in that methods described includes：According to the first parameter estimation data channel signal to noise ratio；According to the data channel signal to noise ratio, with reference to specific broadcast system parameter, the actual coding number of data packets sent.2nd, according to the method described in claim 1, it is characterised in that first parameter at least includes farthest broadcast distances.3rd, according to the method described in claim 1, it is characterised in that described to be included according to the first parameter estimation channel SNRs：According to first parameter, the corresponding path loss values of the data channel are obtained；According to the corresponding path loss values of the data channel, the signal to noise ratio of presently described data channel is obtained.4th, according to the method described in claim 1, it is characterised in that described according to the data channel signal to noise ratio, with reference to specific broadcast parameter, the actual coding number of data packets sent is specifically included：It is described according to the data channel signal to noise ratio, get the corresponding bLock error rate of the data channel signal to noise ratio；According to the bLock error rate and the specific broadcast system parameter, the actual coding number of data packets of the transmission is obtained.5th, the computational methods of the coded data packet quantity sent in a kind of broadcast system, it is characterised in that methods described includes：When meeting preparatory condition, the second parameter is fed back to emitter；The emitter determines the corresponding data channel signal to noise ratio of second parameter, and determine the corresponding bLock error rate of the data channel signal to noise ratio according to second parameter received；The emitter determines actual coding number of data packets according to the bLock error rate with reference to specific broadcast parameter.6th, method according to claim 5, it is characterised in that second parameter at least includes system reference or the corresponding signal to noise ratio of synchronizing signal.7th, method according to claim 5, it is characterised in that the preparatory condition that meets is specifically included：When second parameter is less than predetermined threshold value, second parameter is fed back to the emitter. 8th, method according to claim 5, it is characterized in that, the emitter determines the corresponding data channel signal to noise ratio of second parameter, and determine that the corresponding bLock error rate of the data channel signal to noise ratio is specifically included according to second parameter received：The emitter selects minimum value in second parameter received, and obtains the corresponding channel SNRs of the minimum value, obtains the corresponding bLock error rate of the channel SNRs.9th, the computing device of the coded data packet quantity sent in a kind of broadcast system, it is characterised in that the equipment includes：Signal-to-noise ratio computation unit, for according to the first parameter estimation data channel signal to noise ratio；Number decision unit, for according to the data channel signal to noise ratio, with reference to specific broadcast system parameter, the actual coding number of data packets sent.10th, equipment according to claim 9, it is characterised in that first parameter at least includes farthest broadcast distances.11, equipment according to claim 9, it is characterised in that the signal-to-noise ratio computation unit includes：Path loss calculation subelement, for according to first parameter, obtaining the corresponding path loss values of the data channel；Signal-to-noise ratio computation subelement, for according to the corresponding path loss values of the data channel, obtaining the signal to noise ratio of presently described data channel.12nd, equipment according to claim 9, it is characterised in that the number decision unit is specifically included：Error rate calculation subelement, for according to the data channel signal to noise ratio, getting the corresponding bLock error rate of the data channel signal to noise ratio；Packet determination subelement, for according to the bLock error rate and the specific broadcast system parameter, obtaining the actual coding number of data packets of the transmission.13rd, the computing device of the coded data packet quantity sent in a kind of broadcast system, it is characterised in that the equipment includes：Feedback unit, for when meeting preparatory condition, the second parameter to be fed back to emitter；Bit error rate determining unit, for the emitter according to second parameter received, determines the corresponding data channel signal to noise ratio of second parameter, and determine the corresponding bLock error rate of the data channel signal to noise ratio；Number decision unit, for the emitter according to the bLock error rate, actual coding number of data packets is determined with reference to specific broadcast parameter. 14th, equipment according to claim 13, it is characterised in that second parameter at least includes system reference or the corresponding signal to noise ratio of synchronizing signal.15th, equipment according to claim 13, it is characterised in that the preparatory condition that meets is specifically included：When second parameter is less than predetermined threshold value, second parameter is fed back to the emitter.16th, equipment according to claim 13, it is characterised in that the bit error rate determining unit specifically for：The emitter selects minimum value in second parameter received, and obtains the corresponding channel SNRs of the minimum value, obtains the corresponding bLock error rate of the channel SNRs.17th, the computing device of coded data packet quantity is sent in a kind of broadcast system, it is characterised in that described device includes：First processor, for according to the first parameter estimation data channel signal to noise ratio；The first processor, is additionally operable to according to the data channel signal to noise ratio, with reference to specific broadcast system parameter, the actual coding number of data packets sent.18th, device according to claim 17, it is characterised in that first parameter at least includes farthest broadcast distances.19th, device according to claim 17, it is characterised in that the first processor specifically for：According to first parameter, the corresponding path loss values of the data channel are obtained；According to the corresponding path loss values of the data channel, the signal to noise ratio of presently described data channel is obtained.20th, device according to claim 17, it is characterised in that the first processor also particularly useful for：It is described according to the data channel signal to noise ratio, get the corresponding bLock error rate of the data channel signal to noise ratio；According to the bLock error rate and the specific broadcast system parameter, the actual coding number of data packets of the transmission is obtained.21st, the computing device of the coded data packet quantity sent in a kind of broadcast system, it is characterised in that described device includes：Transmitter, for when meeting preparatory condition, the second parameter to be fed back to emitter；Second processor, for the emitter according to second parameter received, determines the corresponding data channel signal to noise ratio of second parameter, and determine that the data channel signal to noise ratio is corresponding BLock error rate；The second processor, is additionally operable to the emitter according to the bLock error rate, actual coding number of data packets is determined with reference to specific broadcast parameter.22nd, device according to claim 21, it is characterised in that second parameter at least includes system reference or the corresponding signal to noise ratio of synchronizing signal.23rd, device according to claim 21, it is characterised in that the preparatory condition that the transmitter is met includes：When second parameter is less than predetermined threshold value, second parameter is fed back to the emitter.24th, device according to claim 21, it is characterised in that the second processor specifically for：The emitter selects minimum value in second parameter received, and obtains the corresponding channel SNRs of the minimum value, obtains the corresponding bLock error rate of the data channel signal to noise ratio.
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| PCT/CN2013/085656 WO2015058351A1 (en) | 2013-10-22 | 2013-10-22 | Method and device for calculating quantity of encoded data packets transmitted within broadcast system |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343056A (en) * | 2000-09-07 | 2002-04-03 | 松下电器产业株式会社 | Method and equipment for grouping transmission data |
| US20060188004A1 (en) * | 2005-01-27 | 2006-08-24 | Kabushiki Kaisha Toshiba | Radio communication device and semiconductor integrated circuit device used for the same |
| CN101663821A (en) * | 2007-05-03 | 2010-03-03 | 汤姆森许可贸易公司 | Method and apparatus for improving throughput and error performance of rateless coding systems |
| CN101741488A (en) * | 2010-01-29 | 2010-06-16 | 华为技术有限公司 | Time-division system-based link adaptive method and device |
| US20100272011A1 (en) * | 2009-04-27 | 2010-10-28 | Qualcomm Incorporated | Iterative decoding with configurable number of iterations |
| CN102246480A (en) * | 2008-12-11 | 2011-11-16 | 爱立信电话股份有限公司 | Precoding with reduced feedback for coordinated multipoint transmission on the downlink |
| US20120117446A1 (en) * | 2010-11-09 | 2012-05-10 | Qualcomm, Incorporated | Packet-level erasure protection coding in aggregated packet transmissions |
| CN102572920A (en) * | 2010-12-23 | 2012-07-11 | 普天信息技术研究院有限公司 | Interference coordination methods under heterogeneous network |
| CN102594396A (en) * | 2012-03-05 | 2012-07-18 | 黄东 | Interference suppression method for narrow-band communication system |
| CN102684824A (en) * | 2011-03-17 | 2012-09-19 | 中兴通讯股份有限公司 | Data transmission method and system |
| CN102752786A (en) * | 2011-04-18 | 2012-10-24 | 中国移动通信集团公司 | Method, system and device for determining channel quality of communication system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582744A (en) * | 2009-06-19 | 2009-11-18 | 重庆邮电大学 | Encoding and decoding method of RS fountain codes based on iterative approach |
| CN103338092B (en) * | 2013-06-13 | 2016-09-21 | 清华大学 | The method and system of distributed short-wave radio set communication |
-
2013
- 2013-10-22 WO PCT/CN2013/085656 patent/WO2015058351A1/en active Application Filing
- 2013-10-22 CN CN201380001402.7A patent/CN104782097A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343056A (en) * | 2000-09-07 | 2002-04-03 | 松下电器产业株式会社 | Method and equipment for grouping transmission data |
| US20060188004A1 (en) * | 2005-01-27 | 2006-08-24 | Kabushiki Kaisha Toshiba | Radio communication device and semiconductor integrated circuit device used for the same |
| CN101663821A (en) * | 2007-05-03 | 2010-03-03 | 汤姆森许可贸易公司 | Method and apparatus for improving throughput and error performance of rateless coding systems |
| CN102246480A (en) * | 2008-12-11 | 2011-11-16 | 爱立信电话股份有限公司 | Precoding with reduced feedback for coordinated multipoint transmission on the downlink |
| US20100272011A1 (en) * | 2009-04-27 | 2010-10-28 | Qualcomm Incorporated | Iterative decoding with configurable number of iterations |
| CN101741488A (en) * | 2010-01-29 | 2010-06-16 | 华为技术有限公司 | Time-division system-based link adaptive method and device |
| US20120117446A1 (en) * | 2010-11-09 | 2012-05-10 | Qualcomm, Incorporated | Packet-level erasure protection coding in aggregated packet transmissions |
| CN102572920A (en) * | 2010-12-23 | 2012-07-11 | 普天信息技术研究院有限公司 | Interference coordination methods under heterogeneous network |
| CN102684824A (en) * | 2011-03-17 | 2012-09-19 | 中兴通讯股份有限公司 | Data transmission method and system |
| CN102752786A (en) * | 2011-04-18 | 2012-10-24 | 中国移动通信集团公司 | Method, system and device for determining channel quality of communication system |
| CN102594396A (en) * | 2012-03-05 | 2012-07-18 | 黄东 | Interference suppression method for narrow-band communication system |
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|---|---|
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