WO2020034195A1 - Procédé et appareil d'envoi et de reception de données d'application industrielle - Google Patents

Procédé et appareil d'envoi et de reception de données d'application industrielle Download PDF

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Publication number
WO2020034195A1
WO2020034195A1 PCT/CN2018/101068 CN2018101068W WO2020034195A1 WO 2020034195 A1 WO2020034195 A1 WO 2020034195A1 CN 2018101068 W CN2018101068 W CN 2018101068W WO 2020034195 A1 WO2020034195 A1 WO 2020034195A1
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Prior art keywords
data packet
encoded data
wireless
auxiliary data
auxiliary
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PCT/CN2018/101068
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English (en)
Chinese (zh)
Inventor
张洁
王强
丹尼尔 博芬西彭
Original Assignee
西门子股份公司
张洁
王强
丹尼尔 博芬西彭
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Application filed by 西门子股份公司, 张洁, 王强, 丹尼尔 博芬西彭 filed Critical 西门子股份公司
Priority to PCT/CN2018/101068 priority Critical patent/WO2020034195A1/fr
Publication of WO2020034195A1 publication Critical patent/WO2020034195A1/fr

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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
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability

Definitions

  • the invention relates to a method and a device for sending and receiving data for industrial applications.
  • the receiving end will ask the sending end to send the data again. This process is repeated until the number of times that the data packet can be correctly received or retransmitted reaches the upper limit. Since the sender will resend additional data packets only when the sender receives a negative response from the receiver, high latency is unavoidable when the link quality is poor. Compared with general cellular communication systems, industrial applications require higher reliability and lower latency than high data transmission rates.
  • the error correction system and retransmission mechanism can improve the reliability of data transmission to a certain extent, but at the cost of higher delay.
  • Embodiments of the present invention provide a method and a device for transmitting and receiving data in industrial applications, and particularly provide a redundant solution based on multiple communication links to provide reliable wireless communication for industrial applications, thereby at least solving industrial applications The problem of high communication delay and poor reliability in China.
  • a data transmission method for industrial application includes acquiring a data packet to be transmitted; processing a data packet to be transmitted by encoding and removing multiple bits to obtain an encoded data packet and an auxiliary data packet, wherein, the auxiliary data packet includes a plurality of bits removed; and the encoded data packet is transmitted through a first wireless link among the plurality of wireless links, and the auxiliary data packet is transmitted through a second wireless link among the plurality of wireless links.
  • the method of the present invention improves the quality of service, and the combination of the encoded data packet and the auxiliary data packet obtained by removing bits increases the probability of correct decoding and reduces the number of retransmissions. Moreover, the method transmits data packets on two mutually independent links, which makes the failure of one link not to interrupt the entire communication process.
  • the invention provides a redundancy mechanism based on multiple parallel links to achieve reliable wireless communication in industrial applications.
  • ARQ / HARQ hybrid automatic repeat request
  • HARQ hybrid automatic repeat request
  • redundancy can be used Transmission, such as PRP (Parallel Redundancy Protocol), sends the same data packet on two independent links.
  • PRP Parallel Redundancy Protocol
  • the length of the auxiliary data packet is smaller than the length of the encoded data packet.
  • the length of the auxiliary data packet is designed to be much smaller than the length of the encoded data packet, thereby reducing the requirements for link quality.
  • coded packets and auxiliary data packets are sent separately through different wireless links, and smaller length data packets can be sent on independent links, which not only ensures the correctness of data transmission, but also improves transmission efficiency and Reduced latency.
  • processing a data packet to be transmitted by encoding and removing multiple bits includes: using a Turbo or LDPC encoding mechanism to encode a data packet to be transmitted and puncturing the encoded data packet To obtain the punctured coded packets and punctured bits.
  • a Turbo or LDPC encoding mechanism to encode a data packet to be transmitted and puncturing the encoded data packet To obtain the punctured coded packets and punctured bits.
  • the data transmission method further includes selecting a wireless link for transmitting the encoded data packet and a wireless link for transmitting the auxiliary data packet from the plurality of wireless links.
  • a wireless access chain for transmitting the encoded data packet is determined based on at least one of channel quality and load status, the size of the encoded data packet, and the quality of service of multiple wireless links.
  • wireless access links that send auxiliary data packets are considered.
  • the plurality of wireless links adopt different wireless access technologies.
  • This method can effectively aggregate multiple wireless access technologies and choose to use multiple wireless access technologies to send encoded data packets and auxiliary data packets.
  • the wireless access technology includes LTE and WLAN.
  • Embodiments of the present invention can be based on LTE-WLAN link aggregation defined by 3GPP, which supports terminal equipment or mobile equipment using both LTE and WLAN technologies, ensuring high data transmission efficiency and low latency.
  • LTE provides greater coverage than WLAN.
  • a base station eNB can cooperate with multiple WLAN access points.
  • the eNB configures the user equipment UE through the WLAN identification code. The user equipment can move between these multiple access points without notifying the network. This allows WLANs to operate seamlessly and transparently, while also providing higher throughput.
  • WLAN offloads the load of LTE and gains diversity that provides higher throughput for the entire communication.
  • a data receiving method for industrial applications including receiving encoded data packets via a first wireless link among a plurality of wireless links, and via a second wireless link among the plurality of wireless links.
  • the method according to the embodiment of the present invention can effectively meet the requirements of high reliability and low latency in industrial applications.
  • decoding the encoded data packet further includes: if the decoding fails, not sending a negative response NACK and waiting for the auxiliary data packet; and if the decoding is successful, sending a correct response ACK.
  • auxiliary data packets to decode the encoded data packets ensures the correctness of the received information and effectively reduces the impact of channel interference on bit information.
  • waiting for the auxiliary data packet includes: if the waiting timeout occurs, initiating a retransmission request.
  • the receiving end may request the transmitting end to resend the data to ensure successful reception of the data.
  • the plurality of wireless links adopt different wireless access technologies. This can effectively aggregate multiple radio access technologies and choose to use multiple radio access technologies to send encoded data packets and auxiliary data packets.
  • the wireless access technology includes LTE and WLAN. It can support terminal equipment or mobile equipment to use both LTE and WLAN technologies, ensuring high data transmission efficiency and low latency.
  • a data sending device for industrial application which includes an obtaining unit to obtain a data packet to be sent; a processing unit to process the data packet to be sent by encoding and removing multiple bits to obtain an encoding A data packet and an auxiliary data packet, wherein the auxiliary data packet includes a plurality of bits removed; and a transmitting unit transmits an encoded data packet via a first wireless link among the multiple wireless links, and simultaneously transmits the encoded data packet through the multiple wireless links.
  • the second wireless link sends auxiliary data packets.
  • the device uses a redundant mechanism based on multiple parallel links of different wireless links to achieve reliable data transmission in industrial applications.
  • the length of the auxiliary data packet is much smaller than the length of the encoded data packet, thereby reducing the requirement on the link quality. Smaller or smaller data packets can be sent on a link different from the one sending the encoded information, which not only ensures the correctness of data transmission but also reduces the load of data transmission, improves transmission efficiency and reduces delay.
  • the processing unit is further configured to use a Turbo or LDPC encoding mechanism to encode a data packet to be transmitted and puncture the encoded data packet to obtain the punctured encoded data packet and the data packet.
  • a Turbo or LDPC encoding mechanism to encode a data packet to be transmitted and puncture the encoded data packet to obtain the punctured encoded data packet and the data packet.
  • Kongbit This can meet the transmission rate requirements of multiple wireless access technologies, and also provides reliable error correction to ensure that the correct information is received.
  • the data transmitting apparatus further includes a selecting unit that selects a wireless link that transmits an encoded data packet and a wireless link that transmits an auxiliary data packet from a plurality of wireless links. According to the actual situation of multiple transmission links, the link used to send the encoded data packets and auxiliary data packets can be actively selected.
  • a wireless link and a wireless link for transmitting an encoded data packet are determined based on at least one of channel quality and load status, a length of an encoded data packet, and a quality of service of a plurality of wireless links.
  • a wireless link that sends auxiliary data packets is determined based on at least one of channel quality and load status, a length of an encoded data packet, and a quality of service of a plurality of wireless links.
  • the plurality of wireless links adopt different wireless access technologies. This can effectively aggregate multiple wireless access technologies and choose to use multiple wireless access technologies to send encoded data packets and auxiliary data packets.
  • the wireless access technology includes LTE and WLAN.
  • the data sending device of the present invention supports a terminal device or a mobile device to use LTE and WLAN technologies simultaneously, ensuring high data transmission efficiency and low delay.
  • a data receiving device for industrial applications including a receiving unit that receives a coded data packet via a first wireless link of a plurality of wireless links, and a second wireless link through a plurality of wireless links.
  • the link receives an auxiliary data packet, where the auxiliary data packet contains multiple bits removed when encoding the data packet; and a decoding unit that decodes the encoded data packet, including discarding the auxiliary data packet if the decoding is successful; if the decoding fails, using The auxiliary data packet continues to decode the encoded data packet.
  • the device according to the present invention receives different data packets on multiple parallel links that aggregate different wireless links to provide reliable wireless communication for industrial applications, to ensure the correctness of the received data, and to meet high reliability in industrial applications. And low latency requirements.
  • the decoding unit is further configured to: if the decoding of the encoded data packet fails, do not send a negative answer NACK and wait for the auxiliary data packet; and if the decoding is successful, send a correct answer ACK. This ensures the correctness of the received information and effectively reduces the impact of channel interference on bit information.
  • the decoding unit is further configured to: if the waiting timeout occurs, initiate a retransmission request. In the case of waiting for the auxiliary data packet to fail, the receiving end may request the transmitting end to resend the data to ensure successful reception of the data.
  • the plurality of wireless links adopt different wireless access technologies. This can effectively aggregate multiple wireless access technologies, and choose to use multiple wireless access technologies to send encoded data packets and auxiliary data packets, respectively.
  • the wireless access technology includes LTE and WLAN.
  • the data receiving device of the present invention supports a terminal device or a mobile device to use LTE and WLAN technologies simultaneously, ensuring high data transmission efficiency and low delay.
  • Figure 1 shows a schematic diagram of an industrial network according to an embodiment of the invention.
  • FIG. 2 is a schematic flowchart of a data sending method according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a data sending method according to an exemplary embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a data receiving method according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a data receiving method according to an exemplary embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a data sending device according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a data transmitting apparatus according to an exemplary embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a data receiving apparatus according to an embodiment of the present invention.
  • FIG. 9 illustrates a structure diagram of a data receiving apparatus according to an exemplary embodiment of the present invention.
  • FIG. 1 shows a schematic diagram of an industrial network according to an embodiment of the invention.
  • the first user equipment UE1 is selectively connected to the first network 500 and the second network 600 in a wireless manner, and via the first network 500 and / or the second network 600 sends data packets.
  • the computer device 301, the programmable logic controller (PLC) 302, and various industrial sensors 303 are connected to the switch 304 through a bus, and the switch 304 can be selectively connected to the first network 500 and the second network 600 wirelessly,
  • the computer device 301, the programmable logic controller 302, and the various industrial sensors 303 can send data packets via the first network 500 and / or the second network 600.
  • the first user equipment UE1 and the first base station eNB1 and the second base station eNB2 of the first network 500 respectively establish communication links for sending data packets on different links in the network.
  • the first user equipment UE1 establishes communication links with the first access point AP1 and the second access point AP2 of the second network 600, respectively, for sending data packets on different links in the network.
  • the first user equipment UE1 establishes communication links with the first base station eNB1 of the first network 500 and the first access point AP1 of the second network 600, respectively, and is configured to send data packets on communication links in different networks.
  • the computer device 301, the programmable logic controller 302, and various industrial sensors 303 establish a communication link with the first network 500 and / or the second network 600 through the switch 304, and implement the same data as the first user equipment UE1 Sending mechanism.
  • the second user equipment UE2 may selectively connect with the first network 500 and the second network 600 in a wireless manner with the same communication mechanism as the first user equipment UE1, and is configured to receive data from the first user equipment UE1 , Computer equipment 301, programmable logic controller 302, and various industrial sensors 303.
  • the computer device 401, the programmable logic controller 402, and various industrial sensors 403 can be selectively connected to the first network 500 and the second network 600 wirelessly via the switch 404, and the switch 404 can communicate with the switch 304 in the same manner.
  • the mechanism communicates with the first network 500 and / or the second network 600 for receiving data from the first user equipment UE1, the computer equipment 301, the programmable logic controller 302, and various industrial sensors 303.
  • the user equipment UE1 and UE2 are mobile devices, such as a smart phone or a smart operation terminal, held by an operator in a factory or an operating room.
  • the first network 500 is a communication network using LTE technology, and includes a first base station eNB1 and a second base station eNB2;
  • the second network 600 is a communication network using WLAN (Wireless Local Area Network) technology, and includes a first access point AP1 and second access point AP2.
  • the computer devices 301 and 401 are desktop computers or laptop computers.
  • Programmable logic controllers 302 and 402 are used to control switches, and are also used to control analog (for example, current, voltage, temperature, pressure, etc.) and digital (for example, displacement of machine tool components, etc.).
  • the programmable logic controllers 302 and 402 may have a wired or wireless networking communication function, for example, may be connected to a personal computer or one or more programmable logic controllers for communication, and the computer may Participate in programming and control and management of programmable logic controllers.
  • Industrial sensors 303 and 403 are used to collect and store operating data (eg, speed, force, torque, pressure, acceleration, etc.) of a large number of industrial equipment.
  • computer equipment 301, programmable logic controller 302, and various industrial sensors 303 can be connected by CAN field bus technology; computer equipment 401, programmable logic controller 402, and various industrial sensors 403 can also be connected by CAN field bus technology .
  • FIG. 2 is a schematic flowchart of a data sending method according to an embodiment of the present invention.
  • the data sending method according to the embodiment of the present application includes:
  • Step S101 Obtain a data packet to be sent.
  • a data packet corresponding to the data to be sent is first obtained, and the data packet contains valid information in the data to be transmitted to the destination.
  • the data packet to be transmitted is processed by encoding and removing multiple bits to obtain an encoded data packet and an auxiliary data packet, wherein the auxiliary data packet includes the removed multiple bits.
  • the encoded information has strong anti-interference.
  • a Turbo or LDPC (Low Density Parity Check) encoding mechanism is used to encode a data packet to be transmitted.
  • Turbo codes and low density parity check codes are applicable to 3G, 4G, 5G mobile communication standards and 802.11ax standards.
  • an auxiliary data packet is obtained by removing a part of the bits.
  • an encoded data packet is transmitted via a first wireless link among the plurality of wireless links, and an auxiliary data packet is transmitted via a second wireless link among the plurality of wireless links.
  • an encoded data packet and an auxiliary data packet are transmitted simultaneously via different communication links.
  • FIG. 3 is a schematic flowchart of a data transmission method according to an exemplary embodiment of the present invention.
  • a data sending method according to an exemplary embodiment of the present application includes:
  • a data packet to be transmitted is acquired.
  • the data packet to be transmitted is processed by encoding and removing multiple bits to obtain an encoded data packet and an auxiliary data packet, where the auxiliary data packet includes the removed multiple bits.
  • the length of the auxiliary data packet is much smaller than the length of the encoded data packet.
  • a Turbo or LDPC encoding mechanism is used to encode a data packet to be transmitted and puncture the encoded data packet to obtain a punctured encoded data packet and punctured bits.
  • the punctured bits are not discarded, but are stored in the auxiliary data packet for subsequent transmission at the same time as the encoded bits.
  • step S205 a wireless link that transmits an encoded data packet and a wireless link that transmits an auxiliary data packet are selected from a plurality of wireless links.
  • step S207 the encoded data packet is transmitted via the first wireless link of the plurality of wireless links, and the auxiliary data packet is transmitted via the second wireless link of the plurality of wireless links.
  • the multiple wireless links include, but are not limited to, LTE (Long Term Evolution Technology) and WLAN (Wireless Local Area Network).
  • LTE Long Term Evolution Technology
  • WLAN Wireless Local Area Network
  • the base station eNB and the user equipment UE support LTE-WLAN aggregation and can use both LTE and WLAN links. Encoded data packets and auxiliary data packets are always sent over different wireless links.
  • the base station eNB may use user equipment feedback such as channel quality (CQI) and radio resource management functions to determine which cell to use and how to schedule data packets.
  • CQI channel quality
  • the size of the encoded data packet, and the quality of service determine the wireless link that sends the encoded data packet and the wireless link that sends the auxiliary data packet .
  • wireless access technologies include, but are not limited to, LTE and WLAN.
  • LTE Long Term Evolution
  • WLAN Wireless Local Area Network
  • the auxiliary data packet is sent via WLAN.
  • the base station eNB also schedules data transmission according to the current LTE MAC specification, and the WLAN station part of the user equipment UE initiates wireless transmission on the WLAN. Therefore, the base station eNB has higher flexibility to fully control the data transmission of the entire uplink.
  • the communication is converted from a mechanism of a plurality of parallel links used into a single Link working mode.
  • FIG. 4 is a schematic flowchart of a data receiving method according to an embodiment of the present invention.
  • the data receiving method according to the embodiment of the present application includes step S301, receiving an encoded data packet via a first wireless link among a plurality of wireless links, and receiving an auxiliary data packet via a second wireless link among the plurality of wireless links,
  • the auxiliary data packet includes a plurality of bits removed when the data packet is encoded.
  • Step S303, decoding the encoded data packet includes: if the decoding is successful, giving up the auxiliary data packet; if the decoding fails, using the auxiliary data packet to continue decoding the encoded data packet.
  • FIG. 5 is a schematic flowchart of a data receiving method according to an exemplary embodiment of the present invention.
  • a data receiving method includes step S401, receiving an encoded data packet via a first wireless link among a plurality of wireless links, and receiving auxiliary data via a second wireless link among the plurality of wireless links.
  • Multiple wireless links include, but are not limited to, LTE and WLAN.
  • decoding the encoded data packet includes discarding the auxiliary data packet if the decoding is successful; if the decoding fails, using the auxiliary data packet to continue decoding the encoded data packet.
  • step S405 if the decoding fails, a negative response NACK is not transmitted and the auxiliary data packet is waited; and if the decoding is successful, a correct response ACK is transmitted.
  • step S407 if waiting for the auxiliary data packet times out, a retransmission request is initiated.
  • an encoded data packet or an auxiliary data packet when receiving, for example, an encoded data packet or an auxiliary data packet may be received first, and if the auxiliary data packet is received first, the auxiliary data is retained. Packet, and waiting to encode the packet. If the encoded data packet is received first, the encoded data packet is decoded immediately. If the decoding is successful, the correct response ACK is sent; if the decoding fails, the auxiliary data packet is waited, and then the auxiliary data packet and the encoded data packet are combined to continue decoding . When waiting for the encoded data packet or auxiliary data packet to time out, or when both of them cannot be decoded correctly, send a negative response NACK and request the sender to retransmit.
  • HARQ Hybrid Automatic Repeat Request
  • the retransmitted data may include the same data as the previous transmission or include additional data.
  • timers are respectively set on the base station eNB and the user equipment UE.
  • the retransmission mechanism will be triggered again.
  • data packets are sent on both LTE and WLAN, and data packets sent on these two different links will arrive at the receiving end at different times. Therefore, a reordering mechanism is provided to pass these packets to the upper layers of the communication architecture.
  • FIG. 6 is a schematic structural diagram of a data transmitting apparatus 100 according to an embodiment of the present invention.
  • the data sending device 100 includes an obtaining unit 101 to obtain a data packet to be transmitted; a processing unit 103 to process the data packet to be transmitted by encoding and removing multiple bits, to obtain an encoded data packet and an auxiliary data packet Wherein the auxiliary data packet includes a plurality of bits removed; the sending unit 105 sends an encoded data packet via a first wireless link among the plurality of wireless links, and at the same time via a second wireless link among the plurality of wireless links Send auxiliary packets.
  • Multiple wireless links can use different wireless access technologies. Wireless access technologies include, but are not limited to, LTE and WLAN.
  • the device 100 and its internal unit described in FIG. 6 execute the data sending method shown in FIG. 2, which will not be repeated here.
  • FIG. 7 illustrates a structure diagram of a data transmitting apparatus 100 according to an exemplary embodiment of the present invention.
  • the data transmitting device 100 shown in FIG. 7 further includes a selecting unit 107 for selecting a coded data packet to be transmitted from a plurality of wireless links. Wireless links and wireless links that send auxiliary packets.
  • the selection unit 107 determines, based on at least one of the channel quality and load status of multiple wireless links, the length of the encoded data packet, and the quality of service QoS, the wireless link that transmits the encoded data packet and the Wireless link.
  • the processing unit 103 is further configured to encode a data packet to be transmitted using a Turbo or LDPC encoding mechanism and puncture the encoded data packet to obtain a punctured encoded data packet and Kongbit.
  • the punctured bits are stored in auxiliary data packets and sent out over the wireless link.
  • the apparatus 100 and its internal unit described in FIG. 7 execute the data sending method shown in FIG. 3, which will not be repeated here.
  • FIG. 8 is a schematic structural diagram of a data receiving apparatus 200 according to an embodiment of the present invention.
  • the data receiving device 200 includes a receiving unit 201 that receives a coded data packet via a first wireless link of a plurality of wireless links, and simultaneously receives an auxiliary data packet via a second wireless link of the plurality of wireless links.
  • the auxiliary data packet contains bits removed when encoding the data packet; and the decoding unit 203 decodes the encoded data packet, including discarding the auxiliary data packet if the decoding is successful; if the decoding fails, the auxiliary data packet is used to continue encoding the data Packet decoding.
  • the apparatus 200 and its internal unit described in FIG. 8 execute the data receiving method shown in FIG. 4, which will not be repeated here.
  • FIG. 9 illustrates a structure diagram of a data receiving apparatus 200 according to an exemplary embodiment of the present invention.
  • the data receiving device 200 shown in FIG. 9 further includes a feedback unit 205 for not sending a negative answer NACK in the case where the decoding of the encoded data packet fails. , But wait for the auxiliary data packet; and if the decoding is successful, send a correct reply ACK.
  • the feedback unit 205 is further configured to initiate a retransmission request when the waiting timeout occurs.
  • the apparatus 200 and its internal unit described in FIG. 9 execute the data receiving method shown in FIG. 5, which will not be repeated here.
  • the disclosed technical content can be implemented in other ways.
  • the device embodiments described above are only schematic, for example, the division of units or modules is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or modules or components may be combined. Or it can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, modules or units, and may be electrical or other forms.
  • the units or modules described as separate components may or may not be physically separated, and the components displayed as units or modules may or may not be physical units or modules, that is, they may be located in one place, or they may be distributed to multiple units.
  • Network unit or module Some or all of the units or modules may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit or module in each embodiment of the present application may be integrated into one processing unit or module, or each unit or module may exist separately physically, or two or more units or modules may be integrated into one Unit or module.
  • the above-mentioned integrated unit or module can be implemented in the form of hardware or in the form of software functional unit or module.
  • the integrated unit When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially a part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium. , Including a number of instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of each embodiment of the present application.
  • the foregoing storage media include: U disks, Read-Only Memory (ROM), Random Access Memory (RAM), mobile hard disks, magnetic disks, or optical disks, and other media that can store program codes .

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Abstract

La présente invention concerne un procédé et un appareil d'envoi et de réception de données d'application industrielle. Le procédé d'envoi de données consiste à : acquérir un paquet de données à envoyer; traiter, au moyen du codage et de retirer de multiples bits, le paquet de données à envoyer pour obtenir un paquet de données codé et un paquet de données auxiliaires, le paquet de données auxiliaires contenant les multiples bits retirés; et envoyer le paquet de données codé par l'intermédiaire d'une première liaison sans fil de multiples liaisons sans fil, et envoyer le paquet de données auxiliaires par l'intermédiaire d'une seconde liaison sans fil des multiples liaisons sans fil.
PCT/CN2018/101068 2018-08-17 2018-08-17 Procédé et appareil d'envoi et de reception de données d'application industrielle WO2020034195A1 (fr)

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PCT/CN2018/101068 WO2020034195A1 (fr) 2018-08-17 2018-08-17 Procédé et appareil d'envoi et de reception de données d'application industrielle

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Application Number Priority Date Filing Date Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2350577A1 (fr) * 1998-11-30 2000-06-08 Itt Manufacturing Enterprises, Inc. Systeme et procede de radiodiffusion numerique
CN1321379A (zh) * 1999-09-10 2001-11-07 诺基亚网络有限公司 无线系统中的数据传输
CN1394339A (zh) * 2000-08-22 2003-01-29 皇家菲利浦电子有限公司 对比特流进行储存或解码的方法
CN102970111A (zh) * 2012-11-23 2013-03-13 南京邮电大学 一种卫星网络通信中基于冗余编码的多路接入方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2350577A1 (fr) * 1998-11-30 2000-06-08 Itt Manufacturing Enterprises, Inc. Systeme et procede de radiodiffusion numerique
CN1321379A (zh) * 1999-09-10 2001-11-07 诺基亚网络有限公司 无线系统中的数据传输
CN1394339A (zh) * 2000-08-22 2003-01-29 皇家菲利浦电子有限公司 对比特流进行储存或解码的方法
CN102970111A (zh) * 2012-11-23 2013-03-13 南京邮电大学 一种卫星网络通信中基于冗余编码的多路接入方法

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