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WO2015058351A1 - Procédé et dispositif de calcul de la quantité de paquets de données codés émis à travers un système de diffusion groupée - Google Patents

Procédé et dispositif de calcul de la quantité de paquets de données codés émis à travers un système de diffusion groupée Download PDF

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Publication number
WO2015058351A1
WO2015058351A1 PCT/CN2013/085656 CN2013085656W WO2015058351A1 WO 2015058351 A1 WO2015058351 A1 WO 2015058351A1 CN 2013085656 W CN2013085656 W CN 2013085656W WO 2015058351 A1 WO2015058351 A1 WO 2015058351A1
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Prior art keywords
noise ratio
parameter
signal
data channel
error rate
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Ceased
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PCT/CN2013/085656
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English (en)
Chinese (zh)
Inventor
武雨春
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201380001402.7A priority Critical patent/CN104782097A/zh
Priority to PCT/CN2013/085656 priority patent/WO2015058351A1/fr
Publication of WO2015058351A1 publication Critical patent/WO2015058351A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and a device for calculating the number of encoded data packets transmitted in a broadcast system.
  • Embodiments of the present invention provide a method and a device for calculating a number of encoded data packets transmitted in a broadcast system, which are capable of determining a specific number of encoded data packets without guarantee of closed loop feedback, and ensuring data packet transmission. Under the premise of success rate, it does not cause excessive waste.
  • an embodiment of the present invention uses the following technical solution:
  • a method for calculating a number of broadcast data packets is provided, where the method includes: estimating a data channel signal to noise ratio according to a first parameter; The data channel signal to noise ratio, combined with the specific broadcast system parameters, results in the number of actual encoded data packets transmitted.
  • the first parameter includes at least a farthest broadcast distance.
  • the estimating a channel signal to noise ratio according to the first parameter includes: acquiring, according to the first parameter, a path loss value corresponding to the data channel; The path loss value corresponding to the channel acquires a signal to noise ratio of the current data channel.
  • the obtaining, according to the data channel signal to noise ratio, the specific number of the actual encoded data packets, according to the specific broadcast parameter specifically includes: a noise ratio, a block error rate corresponding to the signal to noise ratio of the channel is obtained; and the number of the actual encoded data packets sent is obtained according to the block error rate and the specific broadcast system parameter.
  • a second aspect provides a method for calculating a number of encoded data packets sent in a broadcast system, the method comprising: feeding back a second parameter to a transmitter when the preset condition is met; a second parameter, determining a data channel signal to noise ratio corresponding to the second parameter, and determining a block error rate corresponding to the data channel signal to noise ratio; the transmitter according to the block error rate, combining specific broadcast parameters Determine the actual number of encoded packets.
  • the second parameter includes at least a signal to noise ratio corresponding to a system reference or a synchronization signal.
  • the satisfying the preset condition specifically includes: feeding back the second parameter to the transmitter when the second parameter is lower than a preset threshold.
  • the transmitter determines, according to the received second parameter, a data channel signal to noise ratio corresponding to the second parameter, and determines The block error rate corresponding to the signal-to-noise ratio of the data channel specifically includes: the transmitter selecting a minimum value among the received second parameters, and acquiring a channel signal-to-noise ratio corresponding to the minimum value, acquiring the The block error rate corresponding to the channel signal to noise ratio.
  • the third aspect provides a computing device for broadcasting the number of data packets, including: a signal to noise ratio calculating unit, configured to estimate a data channel signal to noise ratio according to the first parameter; and a number determining unit, configured to perform signal to noise ratio according to the data channel
  • the number of actual encoded data packets sent is obtained by combining specific broadcast system parameters.
  • the first parameter includes at least a farthest broadcast distance.
  • the signal-to-noise ratio calculation unit includes: a path loss calculation sub-unit, configured to acquire, according to the first parameter, a path loss value corresponding to the data channel; And a signal to noise ratio calculation subunit, configured to acquire a signal to noise ratio of the current data channel according to the path loss value corresponding to the data channel.
  • the number determining unit specifically includes: a bit error rate calculating subunit, configured to obtain, according to the data channel signal to noise ratio, a block error corresponding to the signal to noise ratio of the data channel. Rate
  • a fourth aspect provides a computing device for transmitting the number of encoded data packets in a broadcast system, where the device includes: a feedback unit, configured to feed back a second parameter to a transmitter when a preset condition is met; a bit error rate determining unit And determining, by the transmitter, the data channel signal to noise ratio corresponding to the second parameter according to the received second parameter, and determining a block error rate corresponding to the signal channel to noise ratio of the data channel; And a number determining unit, configured to determine, according to the block error rate, the actual number of encoded data packets according to the specific broadcast parameter.
  • the second parameter includes at least a signal to noise ratio corresponding to a system reference or a synchronization signal.
  • the satisfying the preset condition includes: feeding back the second parameter to the transmitter when the second parameter is lower than a preset threshold.
  • the error rate determining unit is specifically configured to: select, by the transmitter, a minimum value in the received second parameter, and obtain the minimum value Corresponding channel signal to noise ratio, obtaining a block error rate corresponding to the channel signal to noise ratio.
  • the fifth aspect provides a computing device for the number of encoded data packets sent in a broadcast system, where the device includes: a first processor, configured to estimate a channel signal to noise ratio according to the first parameter; And obtaining, according to the data channel signal to noise ratio, a specific number of transmitted encoded data packets in combination with specific broadcast system parameters.
  • the first parameter includes at least a farthest broadcast distance.
  • the first processor is specifically configured to:
  • the first processor is further configured to: obtain, according to the data channel signal to noise ratio, a block error rate corresponding to the channel signal to noise ratio; Obtaining the number of actually encoded data packets sent according to the block error rate and the specific broadcast system parameter.
  • the sixth aspect provides a computing device for transmitting the number of encoded data packets in a broadcast system, where the device includes: a transmitter, configured to feed back a second parameter to a transmitter when a preset condition is met; And determining, by the transmitter, the data channel signal to noise ratio corresponding to the second parameter according to the received second parameter, and determining a block error rate corresponding to the data channel signal to noise ratio; The processor is further configured to determine, according to the block error rate, the number of actual encoded data packets according to the specific broadcast parameter.
  • the second parameter includes at least a signal to noise ratio corresponding to the system reference or the synchronization signal.
  • the preset condition that the transmitter meets includes: feeding back the second parameter to the transmitter when the second parameter is lower than a preset threshold.
  • the second processor is specifically configured to: the transmitter selects a minimum value among the received second parameters, and acquires a channel signal to noise ratio corresponding to the minimum value. Obtaining a block error rate corresponding to a signal to noise ratio of the data channel.
  • the method and device for calculating the number of broadcast data packets are provided by the embodiment of the present invention, and the block error rate is obtained according to the first parameter, or is obtained according to the second parameter when the preset condition is met.
  • Block error rate and obtain the number of actual encoded data packets transmitted according to the block error rate; thus, it is possible to determine the number of specific encoded data packets without closed loop feedback, and ensure the success rate of data packet transmission. Under the premise, it does not cause too much waste.
  • FIG. 1 is a schematic diagram of a method for calculating a number of broadcast data packets according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of another method for calculating the number of broadcast data packets according to an embodiment of the present invention.
  • FIG. 3 is a detailed schematic diagram of a method for calculating the number of broadcast data packets according to an embodiment of the present invention
  • FIG. 4 is a detailed schematic diagram of a method for calculating the number of broadcast data packets according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of another method for calculating the number of broadcast data packets according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a computing device for broadcasting a data packet according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a computing device for broadcasting a number of broadcast packets according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a computing device for broadcasting a number of broadcast packets according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a computing device for broadcasting a data packet according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a device for calculating the number of broadcast data packets according to an embodiment of the present invention
  • FIG. 1 is a schematic structural diagram of a device for calculating the number of broadcast data packets according to an embodiment of the present invention.
  • the embodiment of the invention provides a method for calculating the number of broadcast data packets. As shown in FIG. 1, the method includes:
  • the embodiment of the present invention obtains a first parameter and obtains a block error rate according to the first parameter, and then obtains the number of actually encoded data packets according to the block error rate. Therefore, in the absence of closed-loop feedback, the number of specific encoded data packets can still be determined, and no excessive waste is caused under the premise of ensuring the success rate of data packet transmission.
  • the embodiment of the present invention further provides another method for calculating the number of broadcast data packets. As shown in FIG. 2, the method includes:
  • the transmitter determines, according to the received second parameter, a channel signal to noise ratio corresponding to the second parameter, and determines a block error rate corresponding to the channel signal to noise ratio.
  • the transmitter determines, according to the block error rate, the number of actual encoded data packets to be sent according to specific broadcast parameters.
  • a method for calculating the number of broadcast data packets according to an embodiment of the present invention by feeding back a second parameter to a transmitter when a preset condition is met, the transmitter determining, according to the received second parameter, a channel signal to noise ratio corresponding to the second parameter, and determining a block error rate corresponding to the channel signal to noise ratio, wherein the transmitter determines the actual number of encoded data packets according to the block error rate and the specific broadcast parameter; In the absence of closed loop feedback, still The number of specific encoded data packets can be determined, and no excessive waste is caused under the premise of ensuring the success rate of data packet transmission.
  • the method specifically includes:
  • step 301 specifically includes:
  • the first parameter refers to the farthest broadcast distance, that is, the distance that the transmitter needs to cover the farthest receiver.
  • the first parameter can also be implemented by other modes.
  • the path loss value here that is, Path Loss (PL), is the loss value due to the electromagnetic wave transmission environment.
  • PL Path Loss
  • step 302 specifically includes:
  • the block error rate is the ratio of the error data block to the total number of data blocks during the transmission of the communication data. The higher the bit error rate, the data packet indicating that the transmitted data is not normally received. more.
  • the specific broadcast parameters refer to: the channel type currently used for transmitting communication data, the signal modulation method used by the physical layer, and the specific coding type, etc. These parameters are all selected according to actual communication conditions. The following is an example to illustrate the specific process of the method. First, the transmitter obtains the path loss of the current communication environment according to the specific parameters of the current communication environment before transmitting the specific communication data packet.
  • the expected distance of the current communication is 2.4 km
  • the frequency of the carrier frequency band is 2 GHz
  • the bandwidth of the communication system is 10 MHz
  • the maximum transmission power of the transmitter is 10 dBm.
  • PL 32 ⁇ 45 + 20 ⁇ )) + 20 lg d(km) + ⁇
  • PL is the abbreviation of path loss
  • 32.45 is the classical parameter value obtained under a lot of simulation experiments
  • /( M fe ) It is the carrier frequency in the communication environment
  • the unit is MHz, which refers to the farthest distance of the expected target of this communication
  • the unit is km
  • ⁇ is pre-set by the transmitter and receiver before communication. Calculated compensation value in this communication environment.
  • the path loss value in this communication environment is 1 10dB.
  • the signal-to-noise ratio of the current channel is obtained according to the obtained path loss value.
  • P in the formula is the transmitter's transmit power in dBm.
  • a method for calculating the number of encoded data packets sent in a broadcast system obtains a first parameter, and obtains a block error rate according to the first parameter, and then obtains actual coded data according to a block error rate.
  • the embodiment of the invention further provides a method for calculating the number of broadcast data packets. As shown in FIG. 5, the method includes:
  • the transmitter determines, according to the received second parameter, a data channel signal to noise ratio corresponding to the second parameter, and determines a block error rate corresponding to the data channel signal to noise ratio.
  • the transmitter determines, according to the block error rate, the number of actual encoded data packets in combination with specific broadcast parameters.
  • the second parameter includes at least a signal to noise ratio corresponding to the system reference or the synchronization signal.
  • the satisfying the preset condition specifically includes: feeding back the second parameter to the transmitter when the second parameter is lower than a preset threshold.
  • Step 402 specifically includes:
  • the transmitter selects a minimum value among the received second parameters, and obtains The channel signal to noise ratio corresponding to the minimum value is based on a block error rate corresponding to the channel signal to noise ratio.
  • the second parameter is Reference Signal Received Quality (RSRQ).
  • RSRQ is the RSRQ of the received Discover signal transmitted by the user equipment to the cluster head Cluster Header during the Discovery phase of the communication establishment. The following is an example to illustrate the specific process of the method. First, when the preset condition is satisfied, the reference signal reception quality RSRQ is fed back to the transmitter.
  • each D2D user equipment receives the Discover signal, and after receiving, feeds back the received RSRQ of the Discover signal to the cluster head CH to which the user equipment belongs, and the cluster head CH will each user.
  • the RSRQ fed back by the device is sent to the transmitter.
  • each user equipment can also set a threshold itself, and only when the RSRQ receiving the Discover signal is lower than the set threshold, the user belongs to the cluster head. CH feedback.
  • the receiver determines the signal to noise ratio of the channel used by the transmitter according to the received RSRQ, and determines the corresponding block error rate according to the signal to noise ratio.
  • a compensation value corresponding to the difference For example, when using EVA channel, QP SK modulation and 1 / 3 Turbo coding, if ⁇ is 3dB and ⁇ is 0, you can get " ⁇ « at this time, the value is 3dB. According to the relevant data obtained from a large number of simulation experiments, it can be obtained that the corresponding block error rate is 20% when W is 3dB. When the specific transmission environment is different, it is sufficient to bring different ⁇ values into the above formula. After obtaining the corresponding " ⁇ «, the corresponding block error rate is obtained according to the same method. Finally, based on the obtained current block error rate and the redundancy of the transmission code, the number of actually encoded packets under this condition is obtained.
  • a method for calculating the number of broadcast data packets by feeding back a second parameter to a transmitter when a preset condition is met, the transmitter determining, according to the received second parameter, a data channel signal-to-noise ratio corresponding to the second parameter, and determining a block error rate corresponding to the signal-to-noise ratio of the data channel, where the transmitter determines the actual number of encoded data packets according to the block error rate and the specific broadcast parameter; Therefore, in the absence of closed-loop feedback, the number of specific encoded data packets can still be determined, and excessive waste is not caused under the premise of ensuring the success rate of data packet transmission.
  • the embodiment of the present invention provides a computing device 5 for broadcasting the number of data packets.
  • the device further includes: a signal to noise ratio calculating unit 51, configured to estimate a data channel signal to noise ratio according to the first parameter; 52.
  • the method is configured to obtain, according to the data channel signal to noise ratio, a specific number of transmitted data packets by combining specific broadcast system parameters.
  • the first parameter therein includes at least the farthest broadcast distance.
  • the signal-to-noise ratio calculation unit 51 includes: a path loss calculation sub-unit 511, configured to acquire a path loss value corresponding to the data channel according to the data channel signal-to-noise ratio;
  • the unit 512 is configured to obtain a signal to noise ratio of the current data channel according to the path loss value corresponding to the data channel.
  • the number determining unit 52 specifically includes: a bit error rate calculating sub-unit 521, configured to obtain a block error rate corresponding to the signal to noise ratio of the data channel according to the data channel signal to noise ratio. ;
  • the data packet determining subunit 522 is configured to obtain, according to the block error rate and the specific broadcast parameter, the number of the actually encoded data packets to be sent.
  • the computing device for the number of broadcast data packets obtained by the embodiment of the present invention obtains a block error rate according to the first parameter by acquiring a first parameter, and then obtains an actual number of encoded data packets according to a block error rate; In the absence of closed-loop feedback, the number of specific encoded data packets can still be determined, and no excessive waste is caused under the premise of ensuring the success rate of data packet transmission.
  • the embodiment of the present invention further provides a computing device 6 for transmitting the number of encoded data packets in the broadcast system. As shown in FIG. 9, the device 6 includes: a feedback unit 61, configured to feed back to the transmitter when the preset condition is met.
  • a second parameter a bit error rate determining unit 62, configured to determine, according to the received second parameter, a data channel signal to noise ratio corresponding to the second parameter, and obtain a signal to noise ratio corresponding to the data channel.
  • the block error rate; the number determining unit 63 is configured to determine, according to the block error rate, the actual number of encoded data packets according to the specific broadcast parameter.
  • the second parameter includes at least a signal to noise ratio corresponding to a system reference or a synchronization signal.
  • the preset condition that the feedback unit 61 needs to meet specifically includes: feeding back the second parameter to the transmitter when the second parameter is lower than a preset threshold.
  • the error rate determining unit 62 is specifically configured to: the transmitter selects a minimum value in the received second parameter, and acquires a channel signal to noise ratio corresponding to the minimum value, and acquires a channel signal to noise ratio corresponding to the channel. Block error rate.
  • the computing device for broadcasting the number of broadcast packets provided by the embodiment of the present invention, by feeding back a second parameter to the transmitter when the preset condition is met, the transmitter determining, according to the received second parameter, a channel signal to noise ratio corresponding to the second parameter, and acquiring a block error rate corresponding to the channel signal to noise ratio, wherein the transmitter determines the actual number of encoded data packets according to the block error rate and the specific broadcast parameter; In the absence of closed-loop feedback, the number of specific encoded data packets can still be determined. Under the premise of ensuring the success rate of data packet transmission, Do not cause too much waste.
  • the embodiment of the present invention further provides a computing device 7 for transmitting the number of encoded data packets in a broadcast system. As shown in FIG.
  • the device 7 includes: a bus 71; and a memory 72 connected to the bus 71, a processor 73, and receiving And a transmitter 75, wherein the memory 72 is configured to store related instructions, the processor 73 executes related instructions for estimating a data channel signal to noise ratio according to the first parameter; the processor 73 executes the relevant instructions and is further configured to use the data according to the data
  • the channel signal to noise ratio combined with the specific broadcast system parameters, results in the number of actual encoded data packets transmitted.
  • the processor executes related instructions for estimating a data channel signal to noise ratio according to the first parameter, where the first parameter includes at least a farthest broadcast distance.
  • the executing the related instruction the estimating the data channel signal to noise ratio according to the first parameter, specifically: acquiring, according to the first parameter, a path loss value corresponding to the data channel; Obtaining a current signal to noise ratio of the data channel according to the path loss value corresponding to the data channel.
  • the processor executes the relevant instruction, according to the signal-to-noise ratio of the data channel, and the number of the actual encoded data packet that is sent according to the specific broadcast system parameter, specifically: And a data channel signal to noise ratio, a block error rate corresponding to the signal to noise ratio of the data channel is obtained; and the number of the actually encoded data packets sent is obtained according to the block error rate and the specific broadcast system parameter. Therefore, the apparatus for calculating the number of broadcast data packets provided by the embodiment of the present invention obtains the first parameter and obtains the block error rate according to the first parameter, and then obtains the actual number of encoded data packets according to the block error rate.
  • the embodiment of the invention further provides a computing device for transmitting the number of encoded data packets in a broadcast system. 8, as shown in FIG.
  • the device 8 includes: a bus 81; and a memory 82, a processor 83, a receiver 84, and a transmitter 85 connected to the bus 81, wherein the memory 82 is configured to store related instructions,
  • the processor 83 executes relevant instructions for feeding back a second parameter to the transmitter when the preset condition is met; the processor 83 executing the relevant instruction for the transmitter to determine the first according to the received second parameter a data channel signal to noise ratio corresponding to the two parameters, and determining a block error rate corresponding to the data channel signal to noise ratio; the processor 83 executing a related instruction for the transmitter to combine the specific broadcast according to the block error rate
  • the parameters determine the actual number of encoded packets.
  • the processor 83 executes related instructions for the transmitter to include at least a signal to noise ratio corresponding to the system reference or the synchronization signal according to the second parameter of the received second parameter. .
  • the processor 83 executing the relevant instruction for the transmitter according to the preset condition in the received second parameter specifically includes: when the second parameter is lower than the pre- When the threshold is set, the second parameter is fed back to the transmitter.
  • the processor 83 executes relevant instructions for the transmitter to determine a data channel signal to noise ratio corresponding to the second parameter according to the received second parameter, and determine a block error corresponding to the data channel signal to noise ratio.
  • the code rate specifically includes: the transmitter selects a minimum value among the received second parameters, and obtains a channel signal to noise ratio corresponding to the minimum value, and acquires a block error rate corresponding to the channel signal to noise ratio.
  • the apparatus for calculating the number of broadcast data packets provided by the embodiment of the present invention, by feeding back a second parameter to the transmitter when the preset condition is met, the transmitter determining, according to the received second parameter, a channel signal to noise ratio corresponding to the second parameter, and acquiring a block error rate corresponding to the channel signal to noise ratio, wherein the transmitter determines the actual number of encoded data packets according to the block error rate and the specific broadcast parameter; In the absence of closed-loop feedback, the number of specific encoded data packets can still be determined, and no excessive waste is caused under the premise of ensuring the success rate of data packet transmission.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Quality & Reliability (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé et un dispositif de calcul de la quantité de paquets de données diffusés. En l'absence d'une rétroaction en boucle fermée, le nombre spécifique de paquets de données codés peut néanmoins être déterminé. Dans l'hypothèse où le taux de réussite d'une émission de paquets de données est assuré, un gaspillage excessif est ainsi évité. Le mode de réalisation spécifique est le suivant: un premier paramètre est obtenu; un taux d'erreurs sur les blocs est obtenu en fonction du premier paramètre, ou, lorsque des conditions prédéfinies sont remplies, le taux d'erreurs sur les blocs est obtenu en fonction d'un deuxième paramètre; en fonction du taux d'erreurs sur les blocs, le nombre réel de paquets de données codés est obtenu. La présente invention est utilisée pour calculer la quantité spécifique d'émission de paquets de données diffusés.
PCT/CN2013/085656 2013-10-22 2013-10-22 Procédé et dispositif de calcul de la quantité de paquets de données codés émis à travers un système de diffusion groupée Ceased WO2015058351A1 (fr)

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CN201380001402.7A CN104782097A (zh) 2013-10-22 2013-10-22 一种广播系统中发送的编码数据包数量的计算方法和设备
PCT/CN2013/085656 WO2015058351A1 (fr) 2013-10-22 2013-10-22 Procédé et dispositif de calcul de la quantité de paquets de données codés émis à travers un système de diffusion groupée

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