WO2013120433A1 - Procédé de transmission de données, dispositif et système sur la base d'un codage répété - Google Patents

Procédé de transmission de données, dispositif et système sur la base d'un codage répété Download PDF

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Publication number
WO2013120433A1
WO2013120433A1 PCT/CN2013/071484 CN2013071484W WO2013120433A1 WO 2013120433 A1 WO2013120433 A1 WO 2013120433A1 CN 2013071484 W CN2013071484 W CN 2013071484W WO 2013120433 A1 WO2013120433 A1 WO 2013120433A1
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Prior art keywords
repeated
data
coding
physical layer
indication
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PCT/CN2013/071484
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English (en)
Chinese (zh)
Inventor
李春国
周子铨
杨讯
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华为技术有限公司
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Publication of WO2013120433A1 publication Critical patent/WO2013120433A1/fr

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Classifications

    • 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
    • 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

Definitions

  • the present invention relates to the field of data transmission technologies, and in particular, to a method, device and system for transmitting data based on repeated coding. Background technique
  • Wireless Fidelity (WIFI) technology is a technology that can wirelessly connect terminals such as personal computers and handheld devices (such as handheld computers and mobile terminals).
  • terminals such as personal computers and handheld devices (such as handheld computers and mobile terminals).
  • MCSO Modulation and Coding Scheme 0
  • MCS9 Modulation and Coding Scheme 9
  • a corresponding Modulation and Coding Scheme (MCS) value is defined to indicate the MCS0 to MCS9, respectively (eg, the binary MCS values 0000 to 1001 indicate MCS0 to MCS9, respectively).
  • the method for transmitting data in the prior art is that the transmitting end (which may be a network node, a mobile phone terminal, or a mobile computer terminal) selects a corresponding modulation and coding scheme according to its own situation, for example, the transmitting end plans to use the MCS9 to send the transmitting end.
  • the data is modulated and transmitted, and the MCS field of the Physical Layer Signal (PHY SIG) field in the physical layer preamble (including the short training field, the long training field, the physical layer signal field, and the like) is set as an indication.
  • PHY SIG Physical Layer Signal
  • the transmitting end modulates the data, and transmits data to the receiving end (which may be a network node, a mobile phone terminal, a mobile computer terminal).
  • the receiving end reads the MCS field in the PHY SIG field, and after reading the MCS field to indicate the MCS value of the MCS9 (for example, reading the MCS field to be 1001),
  • the data is obtained by using the modulation coding scheme of the MCS9, and the receiving end uses the MCS9 to demodulate the data and finally decode the data to complete the process of transmitting data.
  • a modulation coding scheme MCS0-rep2 mode also called a repetitive coding scheme.
  • the transmitting end modulates the data to be transmitted and repeats the modulated data to generate the repeated data, and sends the repeated data to the receiving end, and the receiving end receives the duplicated data and repeats the data.
  • the combination decoding is performed, so that the equivalent signal-to-noise ratio of the receiving end can be increased by 3 decibels, which alleviates the problem that the receiving signal-to-noise ratio is too low.
  • Embodiments of the present invention provide a method, an apparatus, and a system for transmitting data based on repetitive coding, which can solve the problem that it is difficult to indicate the modulation coding scheme for repeated coding due to the prior art, and the problem that the repeated code transmission data cannot be used cannot be used.
  • a method for transmitting data based on repeated encoding comprising:
  • the data to be transmitted is subjected to block repetition to generate repeated data, and is modulated to generate physical layer data, where the physical layer data includes a physical layer preamble and the repeated data, and the physical layer preamble includes an indication indicating that the repetitive coding is used.
  • a method for transmitting data based on repeated encoding comprising:
  • the repeated data is combined and decoded according to the method of repeated coding.
  • a sender comprising:
  • a generating unit configured to perform block repetition to generate duplicate data, and perform modulation to generate physical layer data, where the physical layer data includes a physical layer preamble and the repeated data, where the physical layer preamble includes an indication Use the indication of repeated coding;
  • a receiving end configured to send the physical layer data to the receiving end, so that the receiving end is acquiring After obtaining the indication identifier, the duplicate data can be merged and decoded according to the method of repeated coding.
  • a receiving end comprising:
  • a receiving unit configured to receive physical layer data sent by the sending end, where the physical layer data includes an indication identifier and repeated data indicating that the repeated encoding is used;
  • a merging decoding unit configured to merge the repeated data according to the method of repeated coding and perform decoding after obtaining the indication identifier for obtaining the indication and using the repeated coding.
  • a system for transmitting data based on repetitive coding including a transmitting end and a receiving end, wherein the transmitting end is configured to perform block repetition on data to be transmitted to generate duplicate data, and perform modulation to generate physical layer data, where the physical The layer data includes a physical layer preamble and a duplicate data, and the physical layer preamble includes an indication identifier indicating that the repetitive coding is used, and the physical layer data is sent to the receiving end;
  • the receiving end is configured to receive the physical layer data sent by the sending end, and after obtaining the indication identifier of the repeated encoding, obtain the indication, and combine the repeated data according to the method of repeated encoding and perform decoding.
  • the method, device and system for transmitting data based on repetitive coding provided by the embodiment of the present invention, after generating duplicate data by performing block repetition of data to be transmitted, and performing modulation to generate physical layer data,
  • the physical layer data of the encoded indication identifier is sent to the receiving end, so that after receiving the indication identifier, the receiving end can learn that the data received by the receiving end uses the repeated encoding manner, and thus can be in the physical layer data.
  • the duplicate data is merged and decoded.
  • FIG. 1 is a flowchart of a method for transmitting data based on repetitive coding according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a method for transmitting data based on repetitive coding according to Embodiment 2 of the present invention
  • FIG. 4 is a flowchart of a method for transmitting data based on repeated coding according to Embodiment 4 of the present invention
  • FIG. 5 is a flowchart of transmitting data based on repeated coding according to Embodiment 5 of the present invention
  • FIG. 6 is a flowchart of a method for transmitting data based on repeated coding according to Embodiment 6 of the present invention
  • FIG. 7 is a schematic diagram of a long training field LTF according to a method for transmitting data based on repeated coding according to Embodiment 6 of the present invention
  • Content structure diagram is a schematic diagram of a long training field LTF according to a method for transmitting data based on repeated coding according to Em
  • FIG. 8 is a schematic structural diagram 1 of a transmitting end according to Embodiment 7 of the present invention
  • 9 is a schematic structural diagram 2 of a transmitting end according to Embodiment 7 of the present invention
  • FIG. 10 is a schematic structural diagram 1 of a receiving end according to Embodiment 8 of the present invention.
  • FIG. 11 is a schematic structural diagram 2 of a receiving end according to Embodiment 8 of the present invention.
  • FIG. 12 is a schematic structural diagram of a system for transmitting data based on repeated coding according to Embodiment 9 of the present invention.
  • a method for transmitting data based on repeated coding according to Embodiment 1 of the present invention includes:
  • Step 101 Perform block repetition on the data to be transmitted to generate duplicate data, and perform modulation to generate physical layer data.
  • the physical layer data includes physical layer preamble and repeated data, and the physical layer preamble includes an indication identifier indicating that the repetitive coding is used.
  • Step 102 Send the physical layer data to the receiving end, so that the receiving end can merge and decode the repeated data according to the repeated coding manner after obtaining the indication identifier.
  • the execution body of the first embodiment of the present invention is a transmitting end, and the sending end may be, for example, a network node, a mobile phone terminal, a mobile computer terminal, etc., but is not limited thereto.
  • a method for transmitting data based on repeated coding includes: Step 201: Receive physical layer data sent by the sending end.
  • the physical layer data includes an indication identifier indicating that the repeated coding is used, and duplicate data.
  • Step 202 After obtaining the indication identifier of the indication and using the repeated coding, the repeated data is merged and decoded according to the method of repeated coding.
  • the executor of the second embodiment of the present invention is a receiving end, and the receiving end may be, for example, a network node, a mobile phone terminal, a mobile computer terminal, etc., but is not limited thereto.
  • the method for transmitting data based on the repetitive encoding provided by the embodiment of the present invention, after generating the duplicate data by performing block repetition of the data to be transmitted, and performing modulation to generate physical layer data,
  • the physical layer data indicating the identifier is sent to the receiving end, so that after receiving the indication identifier, the receiving end can learn that the data received by the receiving end uses the repeated encoding manner, thereby being able to repeat in the physical layer data.
  • the data is merged and decoded.
  • a method for transmitting data based on repeated coding according to Embodiment 3 of the present invention includes:
  • Step 301 The transmitting end performs block repetition on the data to be sent to generate duplicate data, and performs modulation to generate physical layer data.
  • the physical layer data includes physical layer preamble and repeated data, and the physical layer preamble includes a Modulation and Coding Scheme (MCS) value indicating that the repetitive coding is used.
  • MCS Modulation and Coding Scheme
  • the MCS value of the physical code layer (Physical Layer Signal, referred to as PHY SIG) in the physical layer preamble of the wireless broadband (WIFI) technology is a predefined MCS value in the wireless layer (WIFI) technology.
  • the binary numbers 0000 to 1001 indicate the MCS0 to MCS9 schemes respectively, and the binary digits 1010 to 1111 are not applied yet. Therefore, a binary number can be pre-defined in the WIFI technology as the MCS value.
  • the binary is pre-defined in the WIFI technology.
  • the number 1111 is an MCS value indicating that the repeated encoding is used, and the transmitting end setting indicates that the repeated encoding is used.
  • the MCS value of the code sets the MCS value in the preamble of the physical layer to be the binary number 1111, which indicates the use of repeated coding.
  • Step 302 The sending end sends the physical layer data to the receiving end.
  • Step 303 After obtaining the MCS value of the modulation coding scheme of the repeated coding, the receiving end combines the repeated data according to the method of repeated coding and performs decoding.
  • the receiving end After the receiving end obtains the physical layer data and determines that the MCS value is the binary number 1111, the receiving end combines the repeated data according to the repeated encoding and decodes, but is not limited thereto.
  • a method for transmitting data based on repeated coding according to Embodiment 4 of the present invention includes:
  • Step 401 The transmitting end performs block repetition on the data to be sent to generate duplicate data, and performs modulation to generate physical layer data.
  • the physical layer data includes physical layer preamble and repeated data
  • the physical layer preamble includes an MCS value indicating a modulation coding scheme and a repeated field value indicating a repetitive coding.
  • the repeating field value includes a bit value in a physical layer signal domain of the physical layer preamble.
  • the MCS value (binary number 0000) of the MCS0 is pre-defined in the WIFI technology, and there is a reserved bit value in the physical layer signal domain of the physical layer preamble, and a bit value may be used as a repetition in the WIFI technology.
  • the value of the field is used to indicate the use of the repetitive coding mode. For example, when the repetition field value is defined as 1 in the WIFI technology, the repetition coding is used. If the repetition code is not used, the sender is in the physical layer.
  • the setting indicates that the MCS value of the modulation coding scheme MCS0 is a binary number 0000, and the repetition field value is set to 1.
  • Step 402 The sending end sends the physical layer data to the receiving end.
  • Step 403 After obtaining the MCS value of the indication modulation coding scheme and the repeated field value indicating the repeated coding, the receiving end combines the repeated data according to the repeated coding and performs decoding.
  • the receiving end after receiving the physical layer data, and determining that the MCS value of the physical layer data is a binary number 0000 and obtaining a repeated field value of 1, the receiving end combines the weight according to the repeated coding manner.
  • Complex data and decoding but not limited to this.
  • a method for transmitting data based on repeated coding according to Embodiment 5 of the present invention includes:
  • Step 501 The transmitting end performs block repetition on the data to be sent to generate duplicate data, and performs modulation to generate physical layer data.
  • the physical layer data includes physical layer preamble and repeated data
  • the physical layer preamble includes an MCS value indicating a modulation coding scheme, a space time block coding value indicating a repetitive coding, and a space time stream value.
  • the MCS value (binary number 0000) of the MCS0 is pre-defined in the WIFI technology, and the space-time stream number and the space-time block coded value exist in the physical layer signal domain of the physical layer preamble, due to MCS0 to MCS9, WIFI technology definition:
  • the space-time block code value is 1
  • the space-time stream number is twice the number of spatial streams (the number of spatial streams is 1 or 2), that is, the number of space-time streams is 2 or 4, which is expressed in binary. 01 or 11 (WIFI technology defines the number of space-time streams from 00 to 11 to indicate that the number of space-time streams is 1 to 4, respectively).
  • the number of space-time streams is binary number 01 or 11
  • the space-time stream number may be set to a binary number of 00 or 10 to indicate that the repeated coding mode is used, and the transmitting end may set the MCS value to a binary number 0000 in the physical layer preamble, and set the space time.
  • the block code value is 1 and the space time stream is set to the binary number 00 or 10.
  • Step 502 The sending end sends the physical layer data to the receiving end.
  • Step 503 After obtaining the MCS value of the indication modulation coding scheme, the space-time block coding value indicating the repetitive coding, and the space-time stream value, the receiving end combines the repeated data according to the repeated coding and performs decoding. .
  • the receiving end obtains the physical layer data, and determines that the MCS value of the physical layer data is a binary number 0000, the space time block coding value is 1, and the space time stream number is a binary number 00 or 10, according to the repetitive coding.
  • the way to merge and decode the data but not limited to this.
  • the method for transmitting data based on repeated coding includes: Step 601: The transmitting end performs block repetition on the data to be sent to generate duplicate data, and performs modulation to generate physical layer data.
  • the physical layer data includes physical layer preamble and repeated data, and the physical layer preamble includes an MCS value indicating a modulation coding scheme and a Long Training Field (LTF) in the physical layer preamble.
  • MCS modulation coding scheme
  • LTF Long Training Field
  • the MCS value (binary number 0000) of the MCS0 is pre-defined in the WIFI technology, and the LTF is included in the physical layer preamble, and the LTF includes four Long Training Sequences (LTS), in the MCSO.
  • LTS Long Training Sequences
  • the LTF content structure of the long training field is as shown in FIG. 7.
  • the LTF starts with a Double Guard Interval (DGI), and the DGI is followed by two consecutive LTSs.
  • DGI Double Guard Interval
  • the Guard Interval (GI), LTS, GI, and LTS are sequentially set after the two consecutive LTSs, and the symbol polarities of the four LTSs are the same, and the symbol polarity of the third LTS may be set in the WIFI technology or The symbol polarity of the fourth LTS or the symbol polarity of the third LTS and the fourth LTS is opposite to the sign polarity of the first LTS, thereby indicating the manner in which the repeated coding is used. Then, the transmitting end may set the MCS value in the physical layer preamble to indicate the binary number 0000 of the MCS0, and set the symbol polarity of the third LTS of the long training field LTF or the symbol polarity of the fourth LTS.
  • GI Guard Interval
  • the symbol polarity of the third LTS and the fourth LTS is the inverse of the symbol polarity of the first LTS, that is, if the symbol polarity of the first LTS is a positive sign, the symbol polarity of the third LTS Or the symbol polarity of the fourth LTS or the symbol polarity of the third LTS and the fourth LTS is a negative sign.
  • Step 602 The sending end sends the physical layer data to the receiving end.
  • Step 603 After obtaining the MCS value and the LTF of the modulation coding scheme, the receiving end combines the repeated data according to the method of repeated coding and performs decoding.
  • the receiving end obtains the physical layer data, and determines that the MCS value of the physical layer data is a binary number 0000, the symbol polarity of the third LTS in the LTF or the symbol polarity of the fourth LTS or the third.
  • the symbol polarity of the LTS and the fourth LTS is the inverse of the symbol polarity of the first LTS, and the repeated data is combined and decoded according to the method of repeated coding, but is not limited thereto.
  • the method, device and system for transmitting data based on repetitive coding provided by the embodiment of the present invention are generated by repeating block data to be generated, and performing modulation to generate physical layer numbers After that, the physical layer data with the indication identifier indicating the repeated coding is sent to the receiving end, so that after receiving the indication identifier, the receiving end can know that the data received by the receiving end uses the repeated coding. In a way, the duplicate data in the physical layer data can be combined and decoded.
  • the embodiment of the present invention may be that data transmission is being performed between a station (STA) and an access point (AP, Access Point) in the WLAN, where the AP is a transmitting end, and the SAT is a receiving end.
  • the AP can be considered a special site.
  • the station (STA) and the access point can be considered as the transmitting end and the receiving end. Therefore, in the following embodiments, the receiving end or the transmitting end may be a STA or an AP, and the system may be a WLAN composed of a station (STA) and an access point (AP, Access Point).
  • the sending end provided in Embodiment 7 of the present invention includes:
  • a generating unit 71 configured to perform block repetition on the data to be sent to generate repeated data, and perform modulation to generate physical layer data, where the physical layer data includes a physical layer preamble and the repeated data, where the physical layer preamble includes an indication ⁇ Use the indication of repeated coding.
  • the sending unit 72 is configured to send the physical layer data to the receiving end, so that the receiving end can merge and decode the repeated data according to the repeated coding manner after obtaining the indication identifier.
  • the sending unit 72 is configured to send the physical layer data to the receiving end, so that the receiving end can merge and decode the repeated data according to the repeated coding manner after obtaining the indication identifier.
  • the sending end provided by the embodiment of the present invention may be, for example, a network node, a mobile phone terminal, a mobile computer terminal, etc., but is not limited thereto.
  • the indication identifier is a modulation coding scheme MCS value indicating that the repetition coding is used.
  • the sending unit 72 includes:
  • the first sending module 721 is configured to send the physical layer data to the receiving end, so that the receiving end can merge the repeated according to the repeated encoding manner after acquiring the MCS value obtained by the repeated encoding. Data is decoded. For details, refer to steps 302-303 in Figure 3, and details are not described here.
  • the indication identifier is an MCS value indicating a modulation coding scheme, and a repetition field value indicating a repetition coding, where the repetition field value includes the physical layer preamble A bit value in the signal domain of the physical layer.
  • the sending unit 72 includes:
  • a second sending module 721 configured to send the physical layer data to the receiving end, so that the receiving end obtains the MCS value of the indication modulation coding scheme and the repeated field value of the indication repetitive coding
  • the duplicate data can then be merged and decoded according to the method of repeated encoding.
  • the indication identifier is an MCS value indicating a modulation coding scheme, a space-time block coding value indicating a repetitive coding, and a space-time stream value.
  • the sending unit 72 includes:
  • the third sending module 723 is configured to send the physical layer data to the receiving end, so that the receiving end obtains the MCS value of the indication modulation coding scheme, and the space-time grouping of the indication repetitive coding
  • the coded value and the space-time stream value can be combined and decoded according to the method of repeated coding. For details, refer to steps 502-503 in Figure 5, and details are not described here.
  • the indication identifier is an MCS value indicating a modulation coding scheme and a long training field LTF in a physical layer preamble, where the LTF includes four long training sequences LTS, wherein the third LTS The symbol polarity or the symbol polarity of the fourth LTS or the symbol polarity of the third LTS and the fourth LTS is opposite to the sign polarity of the first LTS.
  • the sending unit 72 includes:
  • a fourth sending module 724 configured to send the physical layer data to the receiving end, so that the receiving end obtains the MCS value of the indication modulation coding scheme and the LTF in the physical layer preamble after obtaining the indication
  • the duplicate data can be combined and decoded according to the method of repeated coding. For the specific implementation, refer to steps 602-603 in Figure 6, and details are not described herein.
  • the transmitting end provided by the embodiment of the present invention, after the transmitting end blocks the data to be transmitted by the generating unit to generate duplicate data, and performs modulation to generate physical layer data, the sending unit will use the indicator to repeat the encoding. Instructing to identify the physical layer data of the identifier to the receiving end, so that after receiving the indication identifier, the receiving end can learn that the data received by the receiving end uses the repeated encoding manner, thereby being able to repeat in the physical layer data. The data is merged and decoded.
  • Example eight As shown in FIG. 10, the receiving end provided in Embodiment 8 of the present invention includes:
  • the receiving unit 81 is configured to receive physical layer data sent by the sending end, where the physical layer data includes an indication identifier indicating repeated encoding and repeated data.
  • the physical layer data includes an indication identifier indicating repeated encoding and repeated data.
  • the merging and decoding unit 82 is configured to merge the repeated data according to the method of repeated coding and perform decoding after obtaining the indication identifier for obtaining the indication and using the repeated coding. For details, refer to step 202 in Figure 2, and details are not described here.
  • the receiving end provided by the embodiment of the present invention may be, for example, a network node, a mobile phone terminal, a mobile computer terminal, etc., but is not limited thereto.
  • the indication identifier is a modulation coding scheme MCS value indicating that the repetition coding is used.
  • the merge decoding unit 82 includes:
  • the first merge decoding module 821 is configured to merge the repeated data according to the method of repeated coding and perform decoding after acquiring the MCS value of the modulation coding scheme with the indication and the repeated coding.
  • the specific implementation refer to step 303 in Figure 3, and details are not described herein.
  • the indication identifier is an MCS value indicating a modulation coding scheme, and a repetition field value indicating a repetition coding, where the repetition field value includes a physical layer signal domain of the physical layer preamble One bit value in .
  • the merge decoding unit 82 includes:
  • the second merge decoding module 822 is configured to merge and decode the repeated data according to the repeated coding manner after obtaining the MCS value of the indication modulation coding scheme and the repeated field value.
  • the specific implementation refer to step 403 in Figure 4, and details are not described herein.
  • the indication identifier is an MCS value indicating a modulation coding scheme, a space-time block coding value indicating a repetitive coding, and a space-time stream value.
  • the merge decoding unit 82 includes:
  • a third merge decoding module 823 configured to: after obtaining the MCS value of the indication modulation coding scheme, the space-time block code value for indicating the repetitive coding, and the space-time stream value, according to the method of repeated coding
  • the duplicate data is merged and decoded.
  • step 503 in Figure 5. As shown, it will not be described here.
  • the indication identifier is an MCS value indicating a modulation coding scheme and a long training field LTF in a physical layer preamble, where the LTF includes four long training sequences LTS, wherein the third LTS The symbol polarity or the symbol polarity of the fourth LTS or the symbol polarity of the third LTS and the fourth LTS is opposite to the sign polarity of the first LTS.
  • the merge decoding unit 82 includes:
  • the fourth merge decoding module 824 is configured to merge the repeated data according to the method of repeated coding and perform decoding after acquiring the MCS value of the indication modulation coding scheme and the LTF in the physical layer preamble. For the specific implementation, refer to step 603 in Figure 6, and details are not described herein.
  • the receiving end which is provided by the embodiment of the present invention, receives, by the receiving unit, physical layer data that is sent by the sending end and has an indication identifier indicating that the repeated encoding is used, and the combining and decoding unit obtains the indication identifier, and the receiving The terminal can know the data received by the receiving end and use the method of repeated coding, so that the repeated data can be combined and decoded.
  • the system for transmitting data based on repetitive coding provided by Embodiment 9 of the present invention includes the above-mentioned transmitting end 91 and receiving end 92.
  • the sending end 91 is configured to perform block repetition on the data to be sent to generate duplicate data, and perform modulation to generate physical layer data, where the physical layer data includes a physical layer preamble and the repeated data, where the physical layer
  • the preamble includes an indication indicator indicating the use of the repetitive coding, and the physical layer data is transmitted to the receiving end 92.
  • the receiving end 92 is configured to receive the physical layer data sent by the sending end 91, and after obtaining the indication identifier for the repeated encoding of the indication, combine the repeated data according to the method of repeated encoding and perform decoding.
  • the system for transmitting data based on the repetitive coding provided by the embodiment of the present invention, after the data to be transmitted is block-repeated by the transmitting end to generate duplicate data, and modulated to generate physical layer data, the physical medium with the indication identifier is sent. Layer data to the receiving end, so that the receiving end obtains the indicator After the identification, it can be known that the data received by the receiving end uses the method of repeated coding, and thus the duplicate data in the physical layer data can be combined and decoded.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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Abstract

L'invention concerne un procédé de transmission de données, un dispositif et un système sur la base d'un codage répété. Les modes de réalisation de la présente invention concernent le domaine technique de la transmission de données et résolvent le problème étant que des données ne peuvent pas être transmises par codage répété dans l'état antérieur de la technique. Le procédé comprend les étapes suivantes : les données à envoyer sont répétées par bloc pour générer des données répétées et modulées pour générer des données de couche physique; le préambule physique des données physiques comprend un identificateur d'indication indiquant qu'un codage répété est utilisé; les données de couche physique sont envoyées à un récepteur, de sorte que le récepteur est activé pour combiner les données répétées dans les données de couche physique selon la manière de codage répété et pour effectuer un décodage après que le récepteur a acquis l'identificateur d'indication. La présente invention est appropriée pour des dispositifs mobiles, tels qu'un terminal combiné et un terminal informatique mobile et ainsi de suite.
PCT/CN2013/071484 2012-02-15 2013-02-07 Procédé de transmission de données, dispositif et système sur la base d'un codage répété WO2013120433A1 (fr)

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