CN103259610B - The method of data, Apparatus and system is transmitted based on repeated encoding - Google Patents
The method of data, Apparatus and system is transmitted based on repeated encoding Download PDFInfo
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- CN103259610B CN103259610B CN201210034108.3A CN201210034108A CN103259610B CN 103259610 B CN103259610 B CN 103259610B CN 201210034108 A CN201210034108 A CN 201210034108A CN 103259610 B CN103259610 B CN 103259610B
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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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0067—Rate matching
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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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
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Abstract
The embodiment of the invention discloses a kind of based on repeated encoding the transmission method of data, Apparatus and system, relate to technical field of data transmission, solve the problem that prior art cannot adopt repeated encoding to transmit data. Described method includes: data to be sent are done block and repeats to generate repetition data, and be modulated generating physical layer data, the physical layer preamble of described physical layer data includes instruction and adopts the sign of repeated encoding, described physical layer data is sent to receiving terminal, so that described receiving terminal is after acquiring the described sign simply adopting repeated encoding, described receiving terminal is gone forward side by side row decoding according to the repetition data that the mode of repeated encoding merges in physical layer data. The present invention is applicable to mobile equipment, such as mobile phone terminal, mobile computer terminal etc.
Description
Technical field
The present invention relates to technical field of data transmission, particularly relate to a kind of based on repeated encoding the transmission method of data, Apparatus and system.
Background technology
WiMAX (WirelessFidelity is called for short WIFI) technology is the technology that the terminals such as PC, handheld device (such as palm PC, mobile phone terminal) can wirelessly be interconnected by one. Current WiFi technology has 10 kinds of Modulation and Coding Scheme, respectively Modulation and Coding Scheme 0 (ModulationandCodingScheme0, it is called for short MCS0) to Modulation and Coding Scheme 9 (ModulationandCodingScheme9, it is called for short MCS9), described WiFi technology defines corresponding Modulation and Coding Scheme (ModulationandCodingScheme is called for short MCS) value and indicates respectively described MCS0 to MCS9 (indicating respectively MCS0 to MCS9 for example with binary system MCS value 0000 to 1001).
The method of the transmission data of prior art is, transmitting terminal (can be network node, mobile phone terminal, movable computer terminal) select corresponding Modulation and Coding Scheme according to own situation, such as transmitting terminal plan adopts MCS9 to be modulated the data that described transmitting terminal to send sending, the physical layer preamble then arranging data (includes Short Training field, long training field, the contents such as physical layer signal territory) in physical layer signal (PhysicalLayerSignal, it being called for short PHYSIG) the MCS field in territory is the MCS value (such as binary system MCS value 1001) of instruction MCS9, transmitting terminal modulates described data, and to send data to receiving terminal (can be network node, mobile phone terminal, movable computer terminal). receiving terminal is after having detected that data arrive, read the MCS field in described PHYSIG territory, after reading obtains the MCS value (such as reading obtains described MCS field is 1001) that described MCS field is instruction MCS9, obtain the Modulation and Coding Scheme of described data acquisition MCS9, data are demodulated and finally decode by described receiving terminal application MCS9, complete the process of whole transmission data.
But, between transmitting terminal and receiving terminal time distant (more than 100 meters), the received signal to noise ratio of receiving terminal is relatively low, receiving terminal possibly cannot correctly demodulate the code modulated signal of described MCS0 to MCS9, so providing again a kind of Modulation and Coding Scheme MCS0-rep2 pattern, also referred to as repeated encoding scheme.
MCS0-rep2 pattern is when MCS0 modulates, data to be sent are done modulation after block repeats and are generated repetition data by transmitting terminal, and repetition data are sent to receiving terminal, and receiving terminal is after receiving repetition data, counterweight complex data merges decoding, such that it is able to the equivalent signal-to-noise ratio of receiving terminal is increased by 3 decibels, alleviate the problem that received signal to noise ratio is too low.
Prior art is difficult to instruction and adopts the Modulation and Coding Scheme of repeated encoding, causes the problem that cannot adopt described repeated encoding transmission data.
Summary of the invention
Embodiments of the invention provide a kind of and transmit the method for data, Apparatus and system based on repeated encoding, it is possible to solve to adopt the Modulation and Coding Scheme of repeated encoding owing to prior art is difficult to instruction, cause the problem that cannot adopt described repeated encoding transmission data.
The present invention adopts the following technical scheme that
A kind of method transmitting data based on repeated encoding, including:
Data to be sent being done block repeat to generate repetition data, and be modulated generating physical layer data, described physical layer data includes physical layer preamble and described repetition data, and described physical layer preamble includes instruction and adopts the sign of repeated encoding;
Send described physical layer data to receiving terminal, go forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of repeated encoding after acquiring described sign.
A kind of method transmitting data based on repeated encoding, including:
The physical layer data that receiving end/sending end sends, described physical layer data includes instruction and adopts the sign of repeated encoding and repeat data;
After acquiring described instruction and adopt the sign of repeated encoding, merge described repetition data according to the mode of repeated encoding and go forward side by side row decoding.
A kind of transmitting terminal, including:
Generate unit, repeat to generate repetition data for data to be sent are done block, and it being modulated generating physical layer data, described physical layer data includes physical layer preamble and described repetition data, and described physical layer preamble includes instruction and adopts the sign of repeated encoding;
Transmitting element, for sending described physical layer data to receiving terminal, goes forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of repeated encoding after acquiring described sign.
A kind of receiving terminal, including:
Receiving unit, for the physical layer data that receiving end/sending end sends, described physical layer data includes instruction and adopts the sign of repeated encoding and repeat data;
Merge decoding unit, for, after acquiring described instruction and adopt the sign of repeated encoding, merging described repetition data according to the mode of repeated encoding and go forward side by side row decoding.
A kind of system transmitting data based on repeated encoding, including transmitting terminal and receiving terminal, wherein,
Described transmitting terminal repeats to generate repetition data for data to be sent are done block, and be modulated generating physical layer data, described physical layer data includes physical layer preamble and repeats data, described physical layer preamble includes instruction and adopts the sign of repeated encoding, sends described physical layer data to receiving terminal;
The physical layer data that described receiving terminal sends for receiving end/sending end, and after acquiring described instruction and adopt the sign of repeated encoding, merge described repetition data according to the mode of repeated encoding and go forward side by side row decoding.
What the embodiment of the present invention provided transmits the method for data, Apparatus and system based on repeated encoding, due to by data to be sent being done block repetition to generate repetition data, and after being modulated generating physical layer data, the physical layer data adopting the sign of repeated encoding with instruction is sent to receiving terminal, make receiving terminal after acquiring described sign, can know that the data that described receiving terminal receives have employed the mode of repeated encoding, and then the repetition data in physical layer data can be merged and decode.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The flow chart of the method transmitting data based on repeated encoding that Fig. 1 provides for the embodiment of the present invention one;
The flow chart of the method transmitting data based on repeated encoding that Fig. 2 provides for the embodiment of the present invention two;
The flow chart of the method transmitting data based on repeated encoding that Fig. 3 provides for the embodiment of the present invention three;
The flow chart of the method transmitting data based on repeated encoding that Fig. 4 provides for the embodiment of the present invention four;
The flow chart of the method transmitting data based on repeated encoding that Fig. 5 provides for the embodiment of the present invention five;
The flow chart of the method transmitting data based on repeated encoding that Fig. 6 provides for the embodiment of the present invention six;
Fig. 7 for the embodiment of the present invention six provide based on repeated encoding transmit data method in, the content structure figure of long training field LTF;
The structural representation one of the transmitting terminal that Fig. 8 provides for the embodiment of the present invention seven;
The structural representation two of the transmitting terminal that Fig. 9 provides for the embodiment of the present invention seven;
The structural representation one of the receiving terminal that Figure 10 provides for the embodiment of the present invention eight;
The structural representation two of the receiving terminal that Figure 11 provides for the embodiment of the present invention eight;
The structural representation of the system transmitting data based on repeated encoding that Figure 12 provides for the embodiment of the present invention nine.
Detailed description of the invention
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 present 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 obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
For making the advantage of technical solution of the present invention clearly, below in conjunction with drawings and Examples, the present invention is elaborated.
Embodiment one
As it is shown in figure 1, the method transmitting data based on repeated encoding that the embodiment of the present invention one provides, described method includes:
Step 101, data to be sent are done block repeat to repeat data to generate, and be modulated generating physical layer data.
Wherein, described physical layer data includes physical layer preamble and repeats data, and described physical layer preamble includes instruction and adopts the sign of repeated encoding.
Step 102, send described physical layer data to receiving terminal, go forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of repeated encoding after acquiring described sign.
The executive agent of the embodiment of the present invention one is a kind of transmitting terminal, and described transmitting terminal can be such as network node, mobile phone terminal, movable computer terminal etc., but is not only limited to this.
Embodiment two
As in figure 2 it is shown, the method transmitting data based on repeated encoding that the embodiment of the present invention two provides, described method includes:
The physical layer data that step 201, receiving end/sending end send.
Wherein, described physical layer data includes the sign of instruction employing repeated encoding and repeats data.
Step 202, after acquiring described instruction and adopt the sign of repeated encoding, merge described repetition data according to the mode of repeated encoding and go forward side by side row decoding.
The executive agent of the embodiment of the present invention two is a kind of receiving terminal, and described receiving terminal can be such as network node, mobile phone terminal, movable computer terminal etc., but is not only limited to this.
Adopt the method transmitting data based on repeated encoding that the embodiment of the present invention provides, due to by data to be sent being done block repetition to generate repetition data, and after being modulated generating physical layer data, the physical layer data adopting the sign of repeated encoding with instruction is sent to receiving terminal, make receiving terminal after acquiring described sign, can know that the data that described receiving terminal receives have employed the mode of repeated encoding, and then the repetition data in physical layer data can be merged and decode.
So that those skilled in the art is better understood from the technical scheme that the embodiment of the present invention provided, following by several instantiations be further described in the embodiment of the present invention provide based on repeated encoding transmit data method.
Embodiment three
As it is shown on figure 3, the method transmitting data based on repeated encoding that the embodiment of the present invention three provides, described method includes:
Data to be sent are done block by step 301, transmitting terminal to be repeated to generate repetition data, and is modulated generating physical layer data.
Wherein, described physical layer data includes physical layer preamble and repeats data, and described physical layer preamble includes instruction and adopts Modulation and Coding Scheme (ModulationandCodingScheme the is called for short MCS) value of repeated encoding.
Concrete, the MCS value that described instruction adopts repeated encoding is WiMAX (WirelessFidelity, it is called for short WIFI) physical layer signal (PhysicalLayerSignal of physical layer preamble described in technology, it is called for short PHYSIG) predefined MCS value in territory, such as binary number 0000 to 1001 has indicated respectively MCS0 to MCS9 scheme, and binary number 1010 to 1111 is not temporarily applied, therefore can pre-define a binary number in WiFi technology is MCS value, such as, having pre-defined binary number 1111 in WiFi technology is the MCS value that instruction adopts repeated encoding, then described transmitting terminal arranges instruction and adopts the MCS value of repeated encoding be the MCS value that transmitting terminal arranges in physical layer preamble to be binary number 1111, employing repeated encoding is indicated with this.
Step 302, transmitting terminal send described physical layer data to receiving terminal.
Step 303, receiving terminal, after acquiring described instruction and adopt the Modulation and Coding Scheme MCS value of repeated encoding, merge repetition data according to the mode of repeated encoding and go forward side by side row decoding.
Such as, receiving terminal is acquiring described physical layer data, and judges that to obtain described MCS value be after binary number 1111, merges repetition data according to the mode of repeated encoding and goes forward side by side row decoding, but is not only limited to this.
Embodiment four
As shown in Figure 4, the method transmitting data based on repeated encoding that the embodiment of the present invention four provides, described method includes:
Data to be sent are done block by step 401, transmitting terminal to be repeated to generate repetition data, and is modulated generating physical layer data.
Wherein, described physical layer data includes physical layer preamble and repeats data, and described physical layer preamble includes instruction and adopts the MCS value of Modulation and Coding Scheme and the pleonasm segment value of instruction employing repeated encoding.
Wherein, described pleonasm segment value includes a bit value in the physical layer signal territory of described physical layer preamble.
Concrete, WiFi technology has pre-defined the MCS value (binary number 0000) of MCS0, the physical layer signal territory of described physical layer preamble exists the bit value of reservation, WiFi technology can adopt a bit value indicate employing repeated encoding mode as pleonasm segment value, WiFi technology such as, defines the mode adopting repeated encoding when pleonasm segment value is 1, the mode of repeated encoding is not adopted when being 0, then described transmitting terminal arranges the MCS value of instruction employing Modulation and Coding Scheme MCS0 in described physical layer preamble is binary number 0000, and to arrange pleonasm segment value be 1.
Step 402, transmitting terminal send described physical layer data to receiving terminal.
Step 403, receiving terminal, acquiring after described instruction adopts the MCS value of Modulation and Coding Scheme and instruction to adopt the pleonasm segment value of repeated encoding, merge repetition data according to the mode of repeated encoding and go forward side by side row decoding.
Such as, receiving terminal is acquiring described physical layer data, and to judge to obtain the MCS value of described physical layer data be binary number 0000 and to obtain pleonasm segment value be after 1, merge repetition data according to the mode of repeated encoding and go forward side by side row decoding, but be not only limited to this.
Embodiment five
As it is shown in figure 5, the method transmitting data based on repeated encoding that the embodiment of the present invention five provides, described method includes:
Data to be sent are done block by step 501, transmitting terminal to be repeated to generate repetition data, and is modulated generating physical layer data.
Wherein, described physical layer data includes physical layer preamble and repeats data, and described physical layer preamble includes fluxion value when instruction adopts the MCS value of Modulation and Coding Scheme, instruction to adopt the space-time block code value of repeated encoding and be empty.
Concrete, WiFi technology has pre-defined the MCS value (binary number 0000) of MCS0, fluxion and space-time block code value when existing empty in the physical layer signal territory of described physical layer preamble, due in MCS0 to MCS9, WiFi technology defines: when space-time block code value is 1, time empty, fluxion is 2 times (spatial stream number is 1 or 2) of spatial stream number, namely during sky, fluxion is 2 or 4, (when WiFi technology definition is empty, fluxion is 00 to 11 to be 01 or 11 with binary representation, when being respectively intended to indicate sky, fluxion is 1 to 4), so when MCS0 to MCS9, time empty, fluxion is binary number 01 or 11, when can arrange sky in WiFi technology, fluxion is that binary number 00 or 10 indicates the mode adopting repeated encoding, then described transmitting terminal can arrange MCS value in described physical layer preamble is binary number 0000, and to arrange space-time block code value be 1, arranging fluxion during sky is binary number 00 or 10.
Step 502, transmitting terminal send described physical layer data to receiving terminal.
Step 503, receiving terminal when acquiring described instruction and adopting the MCS value of Modulation and Coding Scheme, instruction to adopt the space-time block code value of repeated encoding and be empty after fluxion value, merge repetition data according to the mode of repeated encoding and go forward side by side row decoding.
Such as, receiving terminal is acquiring physical layer data, and judge that the MCS value obtaining physical layer data is binary number 0000, described space-time block code value is 1, time empty, fluxion is after binary number 00 or 10, mode according to repeated encoding merges repetition data and goes forward side by side row decoding, but is not only limited to this.
Embodiment six
As shown in Figure 6, the method transmitting data based on repeated encoding that the embodiment of the present invention six provides, described method includes:
Data to be sent are done block by step 601, transmitting terminal to be repeated to generate repetition data, and is modulated generating physical layer data.
Wherein, described physical layer data includes physical layer preamble and repeats data, and described physical layer preamble includes the long training field (LongTrainingField is called for short LTF) indicated in the MCS value adopting Modulation and Coding Scheme and described physical layer preamble.
Concrete, WiFi technology has pre-defined the MCS value (binary number 0000) of MCS0, described physical layer preamble there is LTF, described LTF includes four long training sequence (LongTrainingSequence, it is called for short LTS), when MCS0 to MCS9, described long training field LTF content structure is as shown in Figure 7, described LTF is with double protection interval (DoubleGuardInterval, it is called for short DGI) beginning, continuous two LTS it are provided with after described DGI, protection interval (GuardInterval is set gradually after described continuous two LTS, it is called for short GI), LTS, GI, LTS, the symbol polarity of four LTS is identical, and the symbol polarity of the 3rd LTS or the symbol polarity of the symbol polarity of the 4th LTS or the 3rd LTS and the 4th LTS can be set in WiFi technology, contrary with the symbol polarity of first LTS, in the way of this indicates and have employed repeated encoding.Then described transmitting terminal can arrange MCS value in described physical layer preamble is the binary number 0000 that instruction adopts MCS0, and the symbol polarity that symbol polarity is first LTS reverse of the symbol polarity of the 3rd LTS of long training field LTF or the symbol polarity of the 4th LTS or the 3rd LTS and the 4th LTS is set, even the symbol polarity of first LTS is positive sign, then the symbol polarity of the symbol polarity of the 3rd LTS or the symbol polarity of the 4th LTS or the 3rd LTS and the 4th LTS is negative sign.
Step 602, transmitting terminal send described physical layer data to receiving terminal.
Step 603, receiving terminal are acquiring after described instruction adopts the MCS value of Modulation and Coding Scheme and LTF, merge repetition data according to the mode of repeated encoding and go forward side by side row decoding.
Such as, receiving terminal is acquiring physical layer data, and judge that the MCS value obtaining described physical layer data is binary number 0000, the symbol polarity of the symbol polarity of the 3rd LTS in LTF or the symbol polarity of the 4th LTS or the 3rd LTS and the 4th LTS, be first LTS symbol polarity reverse after, mode according to repeated encoding merges repetition data and goes forward side by side row decoding, but is not only limited to this.
What adopt embodiment of the present invention offer transmits the method for data, Apparatus and system based on repeated encoding, due to by data to be sent being done block repetition to generate repetition data, and after being modulated generating physical layer data, the physical layer data adopting the sign of repeated encoding with instruction is sent to receiving terminal, make receiving terminal after acquiring described sign, can know that the data that described receiving terminal receives have employed the mode of repeated encoding, and then the repetition data in physical layer data can be merged and decode.
The embodiment of the present invention can be carry out data transmission between website in WLAN (STA) and access point (AP, AccessPoint), and AP is transmitting terminal, and SAT is receiving terminal. Sometimes it is believed that AP is a special website. It is believed that website (STA) and access point transmitting terminal each other and receiving terminal. So receiving terminal or transmitting terminal can be STA or AP in the following embodiments, the WLAN that system can be website (STA) and access point (AP, AccessPoint) forms.
Embodiment seven
As shown in Figure 8, the transmitting terminal that the embodiment of the present invention seven provides, including:
Generate unit 71, repeat to generate repetition data for data to be sent are done block, and it being modulated generating physical layer data, described physical layer data includes physical layer preamble and described repetition data, and described physical layer preamble includes instruction and adopts the sign of repeated encoding. Its specific implementation is referring in Fig. 1 shown in step 101, repeating no more herein.
Transmitting element 72, for sending described physical layer data to receiving terminal, goes forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of repeated encoding after acquiring described sign. Its specific implementation is referring in Fig. 1 shown in step 102, repeating no more herein.
What deserves to be explained is, the transmitting terminal that the embodiment of the present invention provides can be such as network node, mobile phone terminal, movable computer terminal etc., but is not only limited to this.
Further, as it is shown in figure 9, described sign is the Modulation and Coding Scheme MCS value that instruction adopts repeated encoding.
Described transmitting element 72, including:
First sending module 721, for sending described physical layer data to receiving terminal, goes forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of described repeated encoding after acquiring described instruction and adopt the MCS value of repeated encoding.Its specific implementation is referring in Fig. 3 shown in step 302-303, repeating no more herein.
Further, adopting the MCS value of Modulation and Coding Scheme and the pleonasm segment value of instruction employing repeated encoding as it is shown in figure 9, described sign is instruction, described pleonasm segment value includes a bit value in the physical layer signal territory of described physical layer preamble.
Described transmitting element 72, including:
Second sending module 721, for sending described physical layer data to receiving terminal, so that described receiving terminal can merge described repetition data according to the mode of repeated encoding and goes forward side by side row decoding acquiring after described instruction adopts the MCS value of Modulation and Coding Scheme and described instruction to adopt the pleonasm segment value of repeated encoding. Its specific implementation is referring in Fig. 4 shown in step 402-403, repeating no more herein.
Further, as it is shown in figure 9, described sign is instruction when adopting the MCS value of Modulation and Coding Scheme, instruction to adopt the space-time block code value of repeated encoding and be empty fluxion value.
Described transmitting element 72, including:
3rd sending module 723, for sending described physical layer data to receiving terminal, go forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of repeated encoding when acquiring described instruction and adopting the MCS value of Modulation and Coding Scheme, described instruction to adopt the space-time block code value of repeated encoding and be empty after fluxion value. Its specific implementation is referring in Fig. 5 shown in step 502-503, repeating no more herein.
Further, as shown in Figure 9, described sign is the long training field LTF in the MCS value and physical layer preamble indicating and adopting Modulation and Coding Scheme, described LTF includes four long training sequence LTS, wherein the symbol polarity of the symbol polarity of the 3rd LTS or the symbol polarity of the 4th LTS or the 3rd LTS and the 4th LTS, contrary with the symbol polarity of first LTS.
Described transmitting element 72, including:
4th sending module 724, for being used for sending described physical layer data to receiving terminal, so that described receiving terminal can merge described repetition data according to the mode of repeated encoding and goes forward side by side row decoding acquiring after described instruction adopts the LTF in the MCS value of Modulation and Coding Scheme and described physical layer preamble. Its specific implementation is referring in Fig. 6 shown in step 602-603, repeating no more herein.
Adopt the transmitting terminal that the embodiment of the present invention provides, owing to data to be sent are done block repetition to generate repetition data by generating unit by transmitting terminal, and after being modulated generating physical layer data, transmitting element is by the physical layer data of the sign with instruction employing repeated encoding to receiving terminal, make receiving terminal after acquiring described sign, can know that the data that described receiving terminal receives have employed the mode of repeated encoding, and then the repetition data in physical layer data can be merged and decode.
Embodiment eight
As shown in Figure 10, the receiving terminal that the embodiment of the present invention eight provides, including:
Receiving unit 81, for the physical layer data that receiving end/sending end sends, described physical layer data includes instruction and adopts the sign of repeated encoding and repeat data. Its specific implementation is referring in Fig. 2 shown in step 201, repeating no more herein.
Merge decoding unit 82, for, after acquiring described instruction and adopt the sign of repeated encoding, merging described repetition data according to the mode of repeated encoding and go forward side by side row decoding. Its specific implementation is referring in Fig. 2 shown in step 202, repeating no more herein.
What deserves to be explained is, the receiving terminal that the embodiment of the present invention provides can be such as network node, mobile phone terminal, movable computer terminal etc., but is not only limited to this.
Further, as shown in figure 11, described sign is the Modulation and Coding Scheme MCS value that instruction adopts repeated encoding.
Described merging decoding unit 82, including:
First merges decoding module 821, for, after acquiring described instruction and adopt the Modulation and Coding Scheme MCS value of repeated encoding, merging described repetition data according to the mode of repeated encoding and go forward side by side row decoding. Its specific implementation is referring in Fig. 3 shown in step 303, repeating no more herein.
Further, as shown in figure 11, described sign is that instruction adopts the MCS value of Modulation and Coding Scheme and the pleonasm segment value of instruction employing repeated encoding, and described pleonasm segment value includes a bit value in the physical layer signal territory of described physical layer preamble.
Described merging decoding unit 82, including:
Second merges decoding module 822, for acquiring after described instruction adopts the MCS value of Modulation and Coding Scheme and described pleonasm segment value, merges described repetition data according to the mode of repeated encoding and goes forward side by side row decoding. Its specific implementation is referring in Fig. 4 shown in step 403, repeating no more herein.
Further, as shown in figure 11, fluxion value when described sign is the MCS value of instruction employing Modulation and Coding Scheme, the space-time block code value indicating employing repeated encoding and sky.
Described merging decoding unit 82, including:
3rd merges decoding module 823, after the fluxion value when acquiring described instruction and adopting the MCS value of Modulation and Coding Scheme, described instruction to adopt the space-time block code value of repeated encoding and be empty, merge described repetition data according to the mode of repeated encoding and go forward side by side row decoding. Its specific implementation is referring in Fig. 5 shown in step 503, repeating no more herein.
Further, as shown in figure 11, described sign is the long training field LTF in the MCS value and physical layer preamble indicating and adopting Modulation and Coding Scheme, described LTF includes four long training sequence LTS, wherein the symbol polarity of the symbol polarity of the 3rd LTS or the symbol polarity of the 4th LTS or the 3rd LTS and the 4th LTS, contrary with the symbol polarity of first LTS.
Described merging decoding unit 82, including:
4th merges decoding module 824, for acquiring after described instruction adopts the LTF in the MCS value of Modulation and Coding Scheme and described physical layer preamble, merges described repetition data according to the mode of repeated encoding and goes forward side by side row decoding. Its specific implementation is referring in Fig. 6 shown in step 603, repeating no more herein.
Adopt the receiving terminal that the embodiment of the present invention provides, by receiving the physical layer data of the sign adopting repeated encoding with instruction that unit receiving end/sending end sends, merge decoding unit after acquiring described sign, described receiving terminal can know that the data that described receiving terminal receives have employed the mode of repeated encoding, and then counterweight complex data can merge and decode.
Embodiment nine
As shown in figure 12, the system transmitting data based on repeated encoding that the embodiment of the present invention nine provides, including above-mentioned transmitting terminal 91 and receiving terminal 92.
Wherein, described transmitting terminal 91 repeats to generate repetition data for data to be sent are done block, and be modulated generating physical layer data, described physical layer data includes physical layer preamble and described repetition data, described physical layer preamble includes instruction and adopts the sign of repeated encoding, sends described physical layer data to receiving terminal 92.
The physical layer data that described receiving terminal 92 sends for receiving end/sending end 91, and after acquiring described instruction and adopt the sign of repeated encoding, merges repetition data according to the mode of repeated encoding and goes forward side by side row decoding.
Its specific implementation may refer to the specific embodiment of above-mentioned transmitting terminal and receiving terminal, repeats no more herein.
Adopt the system transmitting data based on repeated encoding that the embodiment of the present invention provides, repeat to generate repetition data owing to data to be sent being done block by transmitting terminal, and after being modulated generating physical layer data, send the physical layer data with sign to receiving terminal, make receiving terminal after acquiring described sign, can know that the data that described receiving terminal receives have employed the mode of repeated encoding, and then the repetition data in physical layer data can be merged and decode.
Through the above description of the embodiments, those skilled in the art is it can be understood that can add the mode of required common hardware by software to the present invention and realize, naturally it is also possible to by hardware, but in a lot of situation, the former is embodiment more preferably. Based on such understanding, the part that prior art is contributed by technical scheme substantially in other words can embody with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk such as computer, hard disk or CD etc., including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) performs the method described in each embodiment of the present invention.
Claims (5)
1. the method transmitting data based on repeated encoding, it is characterised in that including:
Data to be sent being done block repeat to generate repetition data, and be modulated generating physical layer data, described physical layer data includes physical layer preamble and described repetition data, and described physical layer preamble includes instruction and adopts the sign of repeated encoding;
Send described physical layer data to receiving terminal, go forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of repeated encoding after acquiring described sign;
Wherein, described sign is the Modulation and Coding Scheme MCS value that instruction adopts repeated encoding, described to the receiving terminal described physical layer data of transmission, go forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of repeated encoding after acquiring described sign, including: send described physical layer data to receiving terminal, go forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of described repeated encoding after acquiring described instruction and adopt the MCS value of repeated encoding;
Or
Described sign is the MCS value that instruction adopts Modulation and Coding Scheme, fluxion value when instruction adopts the space-time block code value of repeated encoding and be empty, described to the receiving terminal described physical layer data of transmission, go forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of repeated encoding after acquiring described sign, including: send described physical layer data to receiving terminal, so that described receiving terminal is in the MCS value acquiring described instruction employing Modulation and Coding Scheme, described repetition data can be merged according to the mode of repeated encoding after fluxion value when described instruction adopts the space-time block code value of repeated encoding and be empty to go forward side by side row decoding,
Or
Described sign is the long training field LTF in the MCS value and physical layer preamble indicating and adopting Modulation and Coding Scheme, described LTF includes four long training sequence LTS, the wherein symbol polarity of the symbol polarity of the 3rd LTS or the symbol polarity of the 4th LTS or the 3rd LTS and the 4th LTS, contrary with the symbol polarity of first LTS, described to the receiving terminal described physical layer data of transmission, go forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of repeated encoding after acquiring described sign, including: send described physical layer data to receiving terminal, so that described receiving terminal can merge described repetition data according to the mode of repeated encoding and goes forward side by side row decoding acquiring after described instruction adopts the LTF in the MCS value of Modulation and Coding Scheme and described physical layer preamble.
2. the method transmitting data based on repeated encoding, it is characterised in that including:
The physical layer data that receiving end/sending end sends, described physical layer data includes instruction and adopts the sign of repeated encoding and repeat data;
After acquiring described instruction and adopt the sign of repeated encoding, merge described repetition data according to the mode of repeated encoding and go forward side by side row decoding;
Wherein, described sign is the Modulation and Coding Scheme MCS value that instruction adopts repeated encoding, described after the sign acquiring described instruction employing repeated encoding, mode according to repeated encoding merges described repetition data and goes forward side by side row decoding, including: after acquiring described instruction and adopt the Modulation and Coding Scheme MCS value of repeated encoding, merge described repetition data according to the mode of repeated encoding and go forward side by side row decoding;
Or
Fluxion value when described sign is the MCS value of instruction employing Modulation and Coding Scheme, the space-time block code value indicating employing repeated encoding and sky, described after the sign acquiring described instruction employing repeated encoding, mode according to repeated encoding merges described repetition data and goes forward side by side row decoding, including: when acquiring described instruction and adopting the MCS value of Modulation and Coding Scheme, described instruction to adopt the space-time block code value of repeated encoding and be empty after fluxion value, merge described repetition data according to the mode of repeated encoding and go forward side by side row decoding;
Or
Described sign is the long training field LTF in the MCS value and physical layer preamble indicating and adopting Modulation and Coding Scheme, described LTF includes four long training sequence LTS, the wherein symbol polarity of the symbol polarity of the 3rd LTS or the symbol polarity of the 4th LTS or the 3rd LTS and the 4th LTS, contrary with the symbol polarity of first LTS, described after the sign acquiring described instruction employing repeated encoding, mode according to repeated encoding merges described repetition data and goes forward side by side row decoding, including: after the LTF in the MCS value acquiring described instruction employing Modulation and Coding Scheme and described physical layer preamble, mode according to repeated encoding merges described repetition data and goes forward side by side row decoding.
3. a transmitting terminal, it is characterised in that including:
Generate unit, repeat to generate repetition data for data to be sent are done block, and it being modulated generating physical layer data, described physical layer data includes physical layer preamble and described repetition data, and described physical layer preamble includes instruction and adopts the sign of repeated encoding;
Transmitting element, for sending described physical layer data to receiving terminal, goes forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of repeated encoding after acquiring described sign;
Wherein, described sign is the Modulation and Coding Scheme MCS value that instruction adopts repeated encoding, described transmitting element, including: the first sending module, for sending described physical layer data to receiving terminal, go forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of described repeated encoding after acquiring described instruction and adopt the MCS value of repeated encoding;
Or
Fluxion value when described sign is the MCS value of instruction employing Modulation and Coding Scheme, the space-time block code value indicating employing repeated encoding and sky, described transmitting element, including: the 3rd sending module, for sending described physical layer data to receiving terminal, go forward side by side row decoding so that described receiving terminal can merge described repetition data according to the mode of repeated encoding when acquiring described instruction and adopting the MCS value of Modulation and Coding Scheme, described instruction to adopt the space-time block code value of repeated encoding and be empty after fluxion value;
Or
Described sign is the long training field LTF in the MCS value and physical layer preamble indicating and adopting Modulation and Coding Scheme, described LTF includes four long training sequence LTS, the wherein symbol polarity of the symbol polarity of the 3rd LTS or the symbol polarity of the 4th LTS or the 3rd LTS and the 4th LTS, contrary with the symbol polarity of first LTS, described transmitting element, including: the 4th sending module, for sending described physical layer data to receiving terminal, so that described receiving terminal can merge described repetition data according to the mode of repeated encoding and goes forward side by side row decoding acquiring after described instruction adopts the LTF in the MCS value of Modulation and Coding Scheme and described physical layer preamble.
4. a receiving terminal, it is characterised in that including:
Receiving unit, for the physical layer data that receiving end/sending end sends, described physical layer data includes instruction and adopts the sign of repeated encoding and repeat data;
Merge decoding unit, for, after acquiring described instruction and adopt the sign of repeated encoding, merging described repetition data according to the mode of repeated encoding and go forward side by side row decoding;
Wherein, described sign is the Modulation and Coding Scheme MCS value that instruction adopts repeated encoding, described merging decoding unit, including: first merges decoding module, for, after acquiring described instruction and adopt the Modulation and Coding Scheme MCS value of repeated encoding, merging described repetition data according to the mode of repeated encoding and go forward side by side row decoding;
Or
Fluxion value when described sign is the MCS value of instruction employing Modulation and Coding Scheme, the space-time block code value indicating employing repeated encoding and sky, described merging decoding unit, including: the 3rd merges decoding module, after the fluxion value when acquiring described instruction and adopting the MCS value of Modulation and Coding Scheme, described instruction to adopt the space-time block code value of repeated encoding and be empty, merge described repetition data according to the mode of repeated encoding and go forward side by side row decoding;
Or
Described sign is the long training field LTF in the MCS value and physical layer preamble indicating and adopting Modulation and Coding Scheme, described LTF includes four long training sequence LTS, the wherein symbol polarity of the symbol polarity of the 3rd LTS or the symbol polarity of the 4th LTS or the 3rd LTS and the 4th LTS, contrary with the symbol polarity of first LTS, described merging decoding unit, including: the 4th merges decoding module, after the LTF in the MCS value acquiring described instruction employing Modulation and Coding Scheme and described physical layer preamble, mode according to repeated encoding merges described repetition data and goes forward side by side row decoding.
5. the system transmitting data based on repeated encoding, it is characterised in that include transmitting terminal and receiving terminal, wherein,
Described transmitting terminal repeats to generate repetition data for data to be sent are done block, and be modulated generating physical layer data, described physical layer data includes physical layer preamble and repeats data, described physical layer preamble includes instruction and adopts the sign of repeated encoding, sends described physical layer data to receiving terminal;
The physical layer data that described receiving terminal sends for receiving end/sending end, and after acquiring described instruction and adopt the sign of repeated encoding, merge described repetition data according to the mode of repeated encoding and go forward side by side row decoding;
Described sign is the Modulation and Coding Scheme MCS value that instruction adopts repeated encoding;
Or
Fluxion value when described sign is the MCS value of instruction employing Modulation and Coding Scheme, the space-time block code value indicating employing repeated encoding and sky;
Or
Described sign is the long training field LTF in the MCS value and physical layer preamble indicating and adopting Modulation and Coding Scheme, described LTF includes four long training sequence LTS, wherein the symbol polarity of the symbol polarity of the 3rd LTS or the symbol polarity of the 4th LTS or the 3rd LTS and the 4th LTS, contrary with the symbol polarity of first LTS.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210034108.3A CN103259610B (en) | 2012-02-15 | 2012-02-15 | The method of data, Apparatus and system is transmitted based on repeated encoding |
| PCT/CN2013/071484 WO2013120433A1 (en) | 2012-02-15 | 2013-02-07 | Data transmission method, device and system on the basis of repeated encoding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210034108.3A CN103259610B (en) | 2012-02-15 | 2012-02-15 | The method of data, Apparatus and system is transmitted based on repeated encoding |
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| CN104426629B (en) * | 2013-08-30 | 2017-08-04 | 华为技术有限公司 | A kind of physical layer decoding method and its device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101133613A (en) * | 2005-01-12 | 2008-02-27 | 三星电子株式会社 | Apparatus and method for transmitting information data in a wireless communication system |
| CN101282194A (en) * | 2007-04-06 | 2008-10-08 | 华为技术有限公司 | Transmission/receive method capable of implementing block retransmission as well as transmitter and receiver |
| CN101494637A (en) * | 2008-01-24 | 2009-07-29 | 中兴通讯股份有限公司 | Terminal access method and frame structure for WiMAX evolution system |
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| CN101431490A (en) * | 2007-10-30 | 2009-05-13 | 大唐移动通信设备有限公司 | Pilot frequency insertion method, apparatus, base station and customer equipment of orthogonal frequency division multiplexing system |
| US8270352B2 (en) * | 2008-04-09 | 2012-09-18 | Wi-Lan Inc. | Reduction of transmission overhead in a wireless communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101133613A (en) * | 2005-01-12 | 2008-02-27 | 三星电子株式会社 | Apparatus and method for transmitting information data in a wireless communication system |
| CN101282194A (en) * | 2007-04-06 | 2008-10-08 | 华为技术有限公司 | Transmission/receive method capable of implementing block retransmission as well as transmitter and receiver |
| CN101494637A (en) * | 2008-01-24 | 2009-07-29 | 中兴通讯股份有限公司 | Terminal access method and frame structure for WiMAX evolution system |
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| WO2013120433A1 (en) | 2013-08-22 |
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