WO2017193335A1 - 数据传输方法、设备及系统 - Google Patents

数据传输方法、设备及系统 Download PDF

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Publication number
WO2017193335A1
WO2017193335A1 PCT/CN2016/081864 CN2016081864W WO2017193335A1 WO 2017193335 A1 WO2017193335 A1 WO 2017193335A1 CN 2016081864 W CN2016081864 W CN 2016081864W WO 2017193335 A1 WO2017193335 A1 WO 2017193335A1
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WIPO (PCT)
Prior art keywords
communication device
data
transmitted
target
channel quality
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PCT/CN2016/081864
Other languages
English (en)
French (fr)
Inventor
冯淑兰
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112018073049-1A priority Critical patent/BR112018073049A2/pt
Priority to CN202110567556.9A priority patent/CN113411162B/zh
Priority to JP2018559226A priority patent/JP6791984B2/ja
Priority to RU2018143881A priority patent/RU2712437C1/ru
Priority to EP16901290.3A priority patent/EP3444979A4/en
Priority to PCT/CN2016/081864 priority patent/WO2017193335A1/zh
Priority to CN201680085489.4A priority patent/CN109075897B/zh
Priority to KR1020187035507A priority patent/KR20190002690A/ko
Publication of WO2017193335A1 publication Critical patent/WO2017193335A1/zh
Priority to US16/185,975 priority patent/US10887042B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0016Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/20Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/203Details of error rate determination, e.g. BER, FER or WER
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057Physical resource allocation for CQI
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • H04L5/006Quality of the received signal, e.g. BER, SNR, water filling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a data transmission method, device, and system.
  • LTE Long Term Evolution
  • 3GPP 3rd Generation Partnership Project
  • MCS Modulation and Coding Scheme
  • the transmission quality target can only be guaranteed by multiple retransmissions, but multiple retransmissions will increase the transmission delay, requiring extremely low latency and high reliability.
  • the business cannot meet the requirements, and if the transmission quality target is increased, the system transmission efficiency will be reduced.
  • the present invention provides a data transmission method, device and system.
  • the technical solution is as follows:
  • the present invention provides a data transmission method, including:
  • the first communication device acquires the first transmission quality target
  • the first communication device acquires first channel quality information, where the first channel quality information is used to indicate channel quality between the first communication device and the second communication device, where the first channel quality information is obtained based on the first transmission quality target;
  • the first communication device sends the MCS of the data to be transmitted and the coded modulated data to be transmitted to the second communication device.
  • the first communications device acquires the first transmission quality target, including:
  • the first communication device determines the first transmission quality target among the plurality of transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted. Exemplarily, the smaller the delay requirement of the data to be transmitted, the higher the first transmission quality target, the higher the reliability requirement of the data to be transmitted, and the higher the first transmission quality target. Further, the method further includes: the first communication device sends the first transmission quality target to the second communication device; and the first communication device acquires the first channel quality information, including: receiving, by the first communication device, the second communication device One channel quality information.
  • the first communications device acquires the first channel quality information, including:
  • the first communication device receives the second channel quality information sent by the second communication device, where the second channel quality information is a channel quality between the first communication device and the second communication device that is measured by the second communication device based on the second transmission quality target;
  • the first communication device determines that the second transmission quality target is the same as the first transmission quality target, using the second channel quality information as the first channel quality information;
  • the first channel quality information is acquired according to the second channel quality information.
  • the second transmission quality target is a transmission quality target previously stored by the first communication device and the second communication device. It may be a transmission quality target agreed by the first communication device and the second communication device.
  • the first communications device acquires the first transmission quality target, including:
  • the first communication device receives the first transmission quality target transmitted by the second communication device.
  • the first communications device acquires the first channel quality information, including:
  • the first communication device measures channel quality of the sounding signal transmitted by the second communication device and generates first channel quality information.
  • the first communications device acquires the first channel quality information, including:
  • the first communication device receives the first channel quality information sent by the second communication device.
  • the first communications device determines, according to the first transmission quality target and the first channel quality information, the MCS of the data to be transmitted, including:
  • the first communication device determines the MCS of the data to be transmitted according to the preset mapping relationship or the preset mapping list according to the first transmission quality target and the first channel quality information.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a traffic type and a parameter related to the transmission target.
  • a target BLER is 0.1 or 0.00001
  • the target SNR is 3dB or 6dB
  • the service is a low-latency, high-reliability service, or a normal service
  • other parameters related to the transmission target such as a hybrid automatic repeat request (English: Hybrid) Automatic Repeat reQuest, referred to as: HARQ)
  • the number of HARQs is zero or eight.
  • the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality indicator CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the present invention provides a data transmission method, including:
  • the second communication device receives the coded modulation mode MCS of the data to be transmitted sent by the first communication device, and the MCS of the data to be transmitted is determined by the first communication device according to the first transmission quality target and the first channel quality information;
  • the second communication device receives the data to be transmitted sent by the first communication device, and performs demodulation and decoding on the data to be transmitted according to the MCS of the data to be transmitted.
  • the method before the second communications device receives the coded modulation mode MCS of the data to be transmitted sent by the first communications device, the method further includes:
  • the second communication device acquires the first transmission quality target, and generates first channel quality information based on the first transmission quality target;
  • the second communication device transmits the first channel quality information to the first communication device.
  • the second communication device acquires the first transmission quality target, including:
  • the second communication device determines the first transmission quality target among the plurality of transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted. Further, the method further includes the second communication device transmitting the first transmission quality target to the first communication device.
  • the second communication device acquires the first transmission quality target, including: the second communication device receives the first transmission quality target sent by the first communication device.
  • the method before the second communication device receives the coded modulation mode MCS of the data to be transmitted sent by the first communication device, the second communication device acquires the first transmission quality target, the method further includes:
  • the second communication device determines the first transmission quality target among the plurality of transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted;
  • the second communication device transmits the first transmission quality target to the first communication device.
  • the method before the second communications device receives the coded modulation mode MCS of the data to be transmitted sent by the first communications device, the method further includes:
  • the second communication device measures the channel based on the second transmission quality target and generates second channel quality information
  • the second communication device transmits the second channel quality information to the first communication device.
  • the second transmission quality target is a transmission quality target previously stored by the first communication device and the second communication device. It may be a transmission quality target agreed by the first communication device and the second communication device.
  • the MCS of the data to be transmitted is determined by the first communications device according to the first mapping quality target and the first channel quality information according to a preset mapping relationship or a preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a traffic type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality indicator CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the present invention provides a data transmission method, which is a method for a second communication device corresponding to the data transmission method described in the first aspect or any one of the possible implementations of the first aspect to send data to the first communication device. , the method includes:
  • the first communication device acquires the first transmission quality target
  • the first communication device acquires first channel quality information, where the first channel quality information is used to indicate channel quality between the first communication device and the second communication device, where the first channel quality information is obtained based on the first transmission quality target;
  • the first communication device receives the data to be transmitted modulated by the second communication device according to the MCS code of the data to be transmitted.
  • the first communications device acquires the first transmission quality target, including:
  • the first communication device determines the first transmission quality target among the plurality of transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted. Exemplarily, the smaller the delay requirement of the data to be transmitted, the higher the first transmission quality target, the higher the reliability requirement of the data to be transmitted, and the higher the first transmission quality target. Further, the method further includes: the first communication device sends the first transmission quality target to the second communication device; and the first communication device acquires the first channel quality information, including: receiving, by the first communication device, the second communication device One channel quality information.
  • the first communications device acquires the first channel quality information, including:
  • the first communication device receives the second channel quality information sent by the second communication device, where the second channel quality information is a channel quality between the first communication device and the second communication device that is measured by the second communication device based on the second transmission quality target;
  • the first communication device determines that the second transmission quality target is the same as the first transmission quality target, Two channel quality information as the first channel quality information;
  • the first channel quality information is acquired according to the second channel quality information.
  • the second transmission quality target is a transmission quality target previously stored by the first communication device and the second communication device. It may be a transmission quality target agreed by the first communication device and the second communication device.
  • the first communications device acquires the first transmission quality target, including:
  • the first communication device receives the first transmission quality target transmitted by the second communication device.
  • the first communications device acquires the first channel quality information, including:
  • the first communication device measures channel quality of the sounding signal transmitted by the second communication device and generates first channel quality information.
  • the first communications device acquires the first channel quality information, including:
  • the first communication device receives the first channel quality information sent by the second communication device.
  • the first communications device determines, according to the first transmission quality target and the first channel quality information, the MCS of the data to be transmitted, including:
  • the first communication device determines the MCS of the data to be transmitted according to the preset mapping relationship or the preset mapping list according to the first transmission quality target and the first channel quality information.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a traffic type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality indicator CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the present invention provides a data transmission method, which is a second communication device corresponding to the data transmission method described in the second aspect or any possible implementation of the second aspect, to the first communication device.
  • a method for sending data the method comprising:
  • the second communication device receives the coded modulation mode MCS of the data to be transmitted sent by the first communication device, and the MCS of the data to be transmitted is determined by the first communication device according to the first transmission quality target and the first channel quality information;
  • the second communication device performs code modulation on the MCS to be transmitted according to the data to be transmitted, and transmits the coded modulated data to be transmitted to the first communication device.
  • the method before the second communications device receives the coded modulation mode MCS of the data to be transmitted sent by the first communications device, the method further includes:
  • the second communication device acquires the first transmission quality target, and generates first channel quality information based on the first transmission quality target;
  • the second communication device transmits the first channel quality information to the first communication device.
  • the second communication device acquires the first transmission quality target, including:
  • the second communication device determines the first transmission quality target among the plurality of transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted. Further, the method further includes the second communication device transmitting the first transmission quality target to the first communication device.
  • the second communication device acquires the first transmission quality target, including: the second communication device receives the first transmission quality target sent by the first communication device.
  • the method before the second communication device receives the coded modulation mode MCS of the data to be transmitted sent by the first communication device, the second communication device acquires the first transmission quality target, the method further includes:
  • the second communication device determines the first transmission quality target among the plurality of transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted;
  • the second communication device transmits the first transmission quality target to the first communication device.
  • the method before the second communications device receives the coded modulation mode MCS of the data to be transmitted sent by the first communications device, the method further includes:
  • the second communication device measures the channel based on the second transmission quality target and generates second channel quality information
  • the second communication device transmits the second channel quality information to the first communication device.
  • the second transmission quality target is a transmission quality target previously stored by the first communication device and the second communication device. It may be a transmission quality target agreed by the first communication device and the second communication device.
  • the MCS of the data to be transmitted is determined by the first communications device according to the first mapping quality target and the first channel quality information according to a preset mapping relationship or a preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a traffic type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality indicator CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the present invention provides a first communications device, where the first communications device includes: a processing unit and a sending unit;
  • a processing unit configured to acquire a first transmission quality target and first channel quality information, where the first channel quality information is used to indicate channel quality between the first communication device and the second communication device, where the first channel quality information is based on the first Obtained from the transmission quality objectives;
  • the processing unit is further configured to determine, according to the first transmission quality target and the first channel quality information, a coded modulation mode MCS of the data to be transmitted, and code and modulate the data to be transmitted according to the MCS of the data to be transmitted;
  • a sending unit configured to send the MCS of the data to be transmitted and the data to be transmitted modulated by the processing unit to the second communication device.
  • the processing unit is further configured to determine the first transmission quality target among the plurality of transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted.
  • the first communications device further includes a receiving unit, where the sending unit is further configured to send the first transmission quality target to the second communications And a processing unit, configured to receive, by the receiving unit, the first channel quality information sent by the second communications device.
  • the first communications device further includes a receiving unit, configured to receive second channel quality information sent by the second communications device, where the second channel quality information is measured by the second communications device based on the second transmission quality target. Channel quality between the first communication device and the second communication device;
  • the processing unit is further configured to acquire the first channel quality information according to the second channel quality information.
  • the first communications device further includes a receiving unit
  • the processing unit is further configured to receive, by the receiving unit, the first transmission quality target sent by the second communications device.
  • the processing unit is further configured to measure channel quality of the sounding signal sent by the second communications device, and generate first channel quality information.
  • the first communications device further includes a receiving unit
  • the processing unit is further configured to receive, by the receiving unit, the first channel quality information sent by the second communications device.
  • the processing unit is further configured to determine, according to the first transmission quality target and the first channel quality information, the MCS of the data to be transmitted according to the preset mapping relationship or the preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a traffic type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality indicator CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the present invention provides a second communications device, where the second communications device includes: a processing unit and a receiving unit;
  • a receiving unit configured to receive a coded modulation mode MCS of the data to be transmitted sent by the first communications device, where the MCS of the data to be transmitted is determined by the first communications device according to the first transmission quality target and the first channel quality information;
  • the receiving unit is further configured to receive data to be transmitted sent by the first communications device, and the processing unit is configured to perform demodulation and decoding on the data to be transmitted according to the MCS of the data to be transmitted.
  • the processing unit is further configured to acquire a first transmission quality target, and generate first channel quality information based on the first transmission quality target;
  • the sending unit is further configured to send the first channel quality information to the first communications device.
  • processing unit is further configured to determine the first transmission quality target among the plurality of transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted. Further, the sending unit is further configured to send the first transmission quality target to the first communications device.
  • the processing unit is further configured to receive, by the receiving unit, the first transmission quality target sent by the first communications device.
  • the processing unit is further configured to determine the first transmission quality target among the multiple transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted;
  • the sending unit is further configured to send the first transmission quality target to the first communications device.
  • the second communications device further includes a processing unit, configured to measure a channel and generate second channel quality information based on the second transmission quality target;
  • the sending unit is further configured to send the second channel quality information to the first communications device.
  • the MCS of the data to be transmitted is determined by the first communications device according to the first mapping quality target and the first channel quality information according to a preset mapping relationship or a preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a traffic type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. If the number of HARQs is zero, corresponding to low latency and high reliability services, HARQ times The number 8 corresponds to the ordinary business.
  • the first channel quality information includes at least one of a channel quality indicator CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the present invention provides a first communications device, including: a processing unit, a sending unit, and a receiving unit;
  • a processing unit configured to acquire a first transmission quality target and first channel quality information, where the first channel quality information is used to indicate channel quality between the first communication device and the second communication device, where the first channel quality information is based on the first Obtained from the transmission quality objectives;
  • the processing unit is further configured to determine, according to the first transmission quality target and the first channel quality information, a coded modulation mode MCS of the data to be transmitted;
  • a sending unit configured to send the MCS of the data to be transmitted to the second communications device
  • the receiving unit is configured to receive data to be transmitted modulated by the second communication device according to the MCS code of the data to be transmitted.
  • the processing unit is further configured to determine the first transmission quality target among the plurality of transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted.
  • the first communications device further includes a receiving unit, the sending unit is further configured to send the first transmission quality target to the second communications device, and the processing unit is further configured to receive, by the receiving unit, the first channel sent by the second communications device Quality information.
  • the first communications device further includes a receiving unit, configured to receive second channel quality information sent by the second communications device, where the second channel quality information is measured by the second communications device based on the second transmission quality target. Channel quality between the first communication device and the second communication device;
  • the processing unit is further configured to acquire the first channel quality information according to the second channel quality information.
  • the first communications device further includes a receiving unit
  • the processing unit is further configured to receive, by the receiving unit, the first transmission quality target sent by the second communications device.
  • the processing unit is further configured to measure the probe signal sent by the second communication device The channel quality of the number and generate the first channel quality information.
  • the first communications device further includes a receiving unit
  • the processing unit is further configured to receive, by the receiving unit, the first channel quality information sent by the second communications device.
  • the processing unit is further configured to determine, according to the first transmission quality target and the first channel quality information, the MCS of the data to be transmitted according to the preset mapping relationship or the preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a traffic type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality indicator CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the present invention provides a second communication device, including: a processing unit, a sending unit, and a receiving unit;
  • the receiving unit is configured to receive a coded modulation mode MCS of the data to be transmitted sent by the first communications device, where the MCS of the data to be transmitted is determined by the first communications device according to the first transmission quality target and the first channel quality information;
  • a processing unit configured to perform code modulation on the data to be transmitted according to the MCS of the data to be transmitted;
  • a sending unit configured to send the coded modulated data to be transmitted to the first communications device.
  • the processing unit is further configured to acquire a first transmission quality target, and generate first channel quality information based on the first transmission quality target;
  • the sending unit is further configured to send the first channel quality information to the first communications device.
  • processing unit is further configured to determine the first transmission quality target among the plurality of transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted. Further, the sending unit is also used to The first transmission quality target is transmitted to the first communication device.
  • the processing unit is further configured to receive, by the receiving unit, the first transmission quality target sent by the first communications device.
  • the processing unit is further configured to determine the first transmission quality target among the multiple transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted;
  • the sending unit is further configured to send the first transmission quality target to the first communications device.
  • the second communications device further includes a processing unit, configured to measure a channel and generate second channel quality information based on the second transmission quality target;
  • the sending unit is further configured to send the second channel quality information to the first communications device.
  • the MCS of the data to be transmitted is determined by the first communications device according to the first mapping quality target and the first channel quality information according to a preset mapping relationship or a preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a traffic type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality indicator CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the present invention provides a first communication device, including: a processor, a memory, a transmitter, and a receiver, wherein the processor, the memory, the transmitter, and the receiver are connected to each other;
  • the processor is configured to obtain a first transmission quality target and first channel quality information, where the first channel quality information is used to indicate channel quality between the first communication device and the second communication device, where the first channel quality information is based on Obtained by the first transmission quality target;
  • the processor is further configured to determine, according to the first transmission quality target and the first channel quality information, a coded modulation mode MCS of the data to be transmitted, and code and modulate the data to be transmitted according to the MCS of the data to be transmitted;
  • the processor is further configured to send the MCS of the data to be transmitted and the coded modulated data to be transmitted to the second communication device by using a transmitter.
  • the processor is further configured to determine the first transmission quality target among the plurality of transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted.
  • the processor is further configured to send the first transmission quality target to the second communication device by using the transmitter, and the processor is further configured to receive, by the receiver, the first channel quality information sent by the second communication device.
  • the processor is further configured to receive, by the receiver, second channel quality information sent by the second communications device, where the second channel quality information is the first measured by the second communications device based on the second transmission quality target. Channel quality between the communication device and the second communication device;
  • the processor is further configured to acquire the first channel quality information according to the second channel quality information.
  • the processor is further configured to receive, by the receiver, the first transmission quality target sent by the second communication device.
  • the processor is further configured to measure channel quality of the sounding signal sent by the second communications device, and generate first channel quality information.
  • the processor is further configured to receive, by the receiver, first channel quality information that is sent by the second communications device.
  • the processor is further configured to determine, according to the first transmission quality target and the first channel quality information, the MCS of the data to be transmitted according to the preset mapping relationship or the preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a traffic type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes a channel quality indicator CQI, precoding
  • the modulation matrix identifies at least one of a PMI and a rank identifier RI.
  • the present invention provides a second communication device, including: a processor, a memory, a transmitter, and a receiver, wherein the processor, the memory, the transmitter, and the receiver are connected to each other;
  • the processor is configured to receive, by the receiver, a coded modulation mode MCS of the data to be transmitted sent by the first communications device, where the MCS of the data to be transmitted is determined by the first communications device according to the first transmission quality target and the first channel quality information. ;
  • the processor is further configured to receive, by the receiver, the data to be transmitted sent by the first communications device, and perform demodulation and decoding on the data to be transmitted according to the MCS of the data to be transmitted.
  • the processor is further configured to acquire a first transmission quality target, and generate first channel quality information based on the first transmission quality target;
  • the processor is further configured to send the first channel quality information to the first communications device by using a transmitter.
  • the processor is further configured to determine the first transmission quality target among the multiple transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted. Further, the processor is further configured to send the first transmission quality target to the first communication device by using a transmitter.
  • the processor is further configured to receive, by the receiver, the first transmission quality target sent by the first communications device.
  • the processor is further configured to determine the first transmission quality target among the multiple transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted, and send the first transmission quality target by using the transmitter. To the first communication device.
  • the processor is further configured to measure a channel and generate second channel quality information based on the second transmission quality target;
  • the processor is further configured to send the second channel quality information to the first communications device by using a transmitter.
  • the MCS of the data to be transmitted is determined by the first communications device according to the first mapping quality target and the first channel quality information according to a preset mapping relationship or a preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a traffic type and a parameter related to the transmission target.
  • the target BLER is 0.1 or 0.00001
  • the target signal-to-noise ratio SNR is 3dB or 6dB
  • the service is low-latency, high-reliability service, or normal service
  • other parameters related to the transmission target such as the number of HARQ, the number of HARQ is zero or 8 times.
  • the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality indicator CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the present invention provides a first communication device, including: a processor, a memory, a transmitter, and a receiver, wherein the processor, the memory, the transmitter, and the receiver are connected to each other;
  • the processor is configured to obtain a first transmission quality target and first channel quality information, where the first channel quality information is used to indicate channel quality between the first communication device and the second communication device, where the first channel quality information is based on Obtained by the first transmission quality target;
  • the processor is further configured to determine, according to the first transmission quality target and the first channel quality information, a coded modulation mode MCS of the data to be transmitted;
  • the processor is further configured to send, by the transmitter, the MCS that sends the data to be transmitted to the second communications device;
  • the processor is further configured to receive, by the receiver, the data to be transmitted modulated by the second communication device according to the MCS code of the data to be transmitted.
  • the processor is further configured to determine the first transmission quality target among the plurality of transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted.
  • the processor is further configured to send the first transmission quality target to the second communication device by using the transmitter, and the processor is further configured to receive, by the receiver, the first channel quality information sent by the second communication device.
  • the processor is further configured to receive, by the receiver, second channel quality information sent by the second communications device, where the second channel quality information is the first measured by the second communications device based on the second transmission quality target. Channel quality between the communication device and the second communication device;
  • the processor is further configured to acquire the first channel quality information according to the second channel quality information.
  • the processor is further configured to receive, by the receiver, the second communication device to send The first transmission quality target.
  • the processor is further configured to measure channel quality of the sounding signal sent by the second communications device, and generate first channel quality information.
  • the processor is further configured to receive, by the receiver, first channel quality information that is sent by the second communications device.
  • the processor is further configured to determine, according to the first transmission quality target and the first channel quality information, the MCS of the data to be transmitted according to the preset mapping relationship or the preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a traffic type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality indicator CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the present invention provides a second communication device, including: a processor, a memory, a transmitter, and a receiver, wherein the processor, the memory, the transmitter, and the receiver are connected to each other;
  • the processor is configured to receive, by the receiver, a coded modulation mode MCS of the data to be transmitted sent by the first communications device, where the MCS of the data to be transmitted is determined by the first communications device according to the first transmission quality target and the first channel quality information. ;
  • the processor is further configured to perform code modulation on the MCS to be transmitted according to the data to be transmitted, and send the coded modulated data to be transmitted to the first communication device by using the transmitter.
  • the processor is further configured to acquire a first transmission quality target, and generate first channel quality information based on the first transmission quality target;
  • the processor is further configured to send the first channel quality information to the first communications device by using a transmitter.
  • the processor is further configured to delay according to the data to be transmitted Requirements and reliability requirements determine the first transmission quality target among multiple transmission quality objectives. Further, the processor is further configured to send the first transmission quality target to the first communication device by using a transmitter.
  • the processor is further configured to receive, by the receiver, the first transmission quality target sent by the first communications device.
  • the processor is further configured to determine the first transmission quality target among the multiple transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted, and send the first transmission quality target by using the transmitter. To the first communication device.
  • the processor is further configured to measure a channel and generate second channel quality information based on the second transmission quality target;
  • the processor is further configured to send the second channel quality information to the first communications device by using a transmitter.
  • the MCS of the data to be transmitted is determined by the first communications device according to the first mapping quality target and the first channel quality information according to a preset mapping relationship or a preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a traffic type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality indicator CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the present invention provides a wireless communication system, including: a first communication device and a second communication device;
  • the first communication device is the first communication device described in the fifth aspect or any one of the possible implementations of the fifth aspect, the second communication device being described in the sixth aspect or any one of the possible implementations of the sixth aspect The first communication device.
  • the present invention provides a wireless communication system, including: a first communication device and a second communication device;
  • the first communication device is the first communication device described in the seventh aspect or any one of the possible implementations of the seventh aspect, the second communication device being described in the eighth aspect or any one of the possible implementations of the eighth aspect The first communication device.
  • the present invention provides a wireless communication system, including: a first communication device and a second communication device;
  • the first communication device is the first communication device described in the ninth aspect or any one of the possible implementations of the ninth aspect, the second communication device being described in any one of the possible implementations of the tenth aspect or the tenth aspect The first communication device.
  • the present invention provides a wireless communication system, including: a first communication device and a second communication device;
  • the first communication device is the first communication device described in the eleventh aspect or any one of the possible implementations of the eleventh aspect, the second communication device being any one of the twelfth aspect or the twelfth aspect The first communication device described in the implementation.
  • the first communication device acquires the first channel quality information, and determines the coded modulation mode MCS of the data to be transmitted according to the first transmission quality target and the first channel quality information;
  • the MCS of the data to be transmitted is sent to the second communication device;
  • the MCS to be transmitted according to the data to be transmitted is code modulated, and the coded modulated data to be transmitted is transmitted to the second communication device, or the second communication device is received according to the data to be transmitted.
  • the MCS encodes the modulated data to be transmitted.
  • the MCS of the data to be transmitted is determined according to the first transmission quality target and the first channel quality information, so that each transmitted data determines the MCS according to the respective transmission quality target and the first channel quality information, and the transmission in the prior art is solved.
  • the quality goal cannot meet the requirements of low latency and high reliability services and system efficiency requirements.
  • 1a is a schematic flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 1b is a schematic flowchart of another data transmission method according to an embodiment of the present invention.
  • FIG. 2a is a schematic flowchart of a data transmission method according to another embodiment of the present invention.
  • 2b is a schematic flowchart of another data transmission method according to another embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a downlink data transmission method in a first application scenario according to an embodiment of the present disclosure
  • FIG. 3b is a schematic flowchart of an uplink data transmission method in a first application scenario according to an embodiment of the present disclosure
  • 4a is a schematic flowchart of a downlink data transmission method in a second application scenario according to an embodiment of the present invention
  • 4b is a schematic flowchart of an uplink data transmission method in a second application scenario according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a downlink data transmission method in a third application scenario according to an embodiment of the present disclosure
  • FIG. 5b is a schematic flowchart of an uplink data transmission method in a third application scenario according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of a downlink data transmission method in a fourth application scenario according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of an uplink data transmission method in a fourth application scenario according to an embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram of a first communication device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a second communication device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a first communication device according to another embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a second communication device according to another embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a wireless communication system according to an embodiment of the present invention.
  • An embodiment of the present invention provides a data transmission method. Referring to FIG. 1a, the method includes the following steps:
  • the first communications device acquires a first transmission quality target.
  • the first transmission quality target is used to indicate a transmission quality target of the data to be transmitted.
  • the first communication device may be a base station (English: Base Station, BS for short), and the wireless access node (English: Access Point, referred to as AP)
  • the second communication device may be a terminal device, a mobile station (English: Mobile Station, MS for short), a base station, etc., in a long term evolution (English: Long Term Evolution, LTE for short) system,
  • the base station may be an evolved Node B (English: Evolved Node Base Station, eNB for short), and the terminal device may be a user equipment (English: User Equipment, UE for short).
  • the first communications device may acquire the first transmission quality target.
  • the first communications device can obtain the first transmission quality target in the following two manners:
  • the first communication device determines the first transmission quality target among the multiple transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted, and the smaller the delay requirement of the data to be transmitted, the first transmission quality target The higher the reliability requirement of the data to be transmitted, the higher the first transmission quality target, for example, the transmission quality target of the normal service is BLER ⁇ 0.1, and the transmission quality target of the low latency high reliability service is BLER ⁇ 0.00001.
  • the first communication device can also transmit the first transmission quality target to the second communication device.
  • the first transmission quality target is determined as follows: if the delay of the data to be transmitted is less than or equal to the sum of the air interface transmission delay and the fixed value, the first transmission quality target is set as the error block required for the data to be transmitted. rate. Assume that the air interface transmission delay is 0.5 ms, the fixed value is set to 0.5 ms, the data delay to be transmitted is 1 ms, and the error block rate of the to-be-transmitted data packet is 0.00001, then the first transmission quality target of the to-be-transmitted data packet is to be transmitted. The block error rate of the packet is BLER ⁇ 0.00001.
  • the data delay to be transmitted is 10 ms
  • the error block rate of the to-be-transmitted data packet is 0.00001
  • the first transmission quality target of the to-be-transmitted data packet is BLER ⁇ 0.1
  • the retransmission can be used to further reduce the error block of the data packet to be transmitted. rate.
  • the method for determining the first transmission quality target is as follows: the system includes at least two transmission quality targets, one transmission quality target is BLER ⁇ 0.1, and one transmission quality target is BLER ⁇ 0.00001, and the transmission quality is if the data to be transmitted is a normal service.
  • the target is BLER ⁇ 0.1. If the data to be transmitted is ultra-low latency and high reliability, the transmission quality target is BLER ⁇ 0.00001.
  • the transmission quality target here refers to the transmission quality goal of the air interface once transmission.
  • Another possible first transmission quality objective is that the system includes at least three transmission quality targets, one transmission quality target is BLER ⁇ 0.1, one transmission quality target is BLER ⁇ 0.00001, and one transmission quality target is BLER ⁇ 0.0000001.
  • the transmission quality target is BLER ⁇ 0.1. If the end-to-end transmission delay of the to-be-transmitted service is less than 1 ms, the transmission quality target is BLER ⁇ 0.0000001, if the service to be transmitted The end-to-end transmission delay is between 1ms and 5ms, and the transmission quality target is BLER ⁇ 0.00001.
  • the first communications device may send the first transmission quality target to the second communications device; and receive the first channel quality information sent by the second communications device.
  • the second communication device can measure the channel based on the first transmission quality target because the first transmission quality target is received, so that the first channel quality information is directly acquired and sent to the first communication device.
  • the first communications device receives the first transmission quality target sent by the second communications device.
  • the second communication device may determine the first transmission quality target among the multiple transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted. For example, the smaller the delay requirement of the data to be transmitted, the first transmission quality target The higher the reliability requirement of the data to be transmitted, the higher the first transmission quality target.
  • the transmission quality target of the normal service is BLER ⁇ 0.1
  • the transmission quality target of the low latency high reliability service is BLER ⁇ 0.00001.
  • the second communication device determines that the first transmission quality target can determine the first transmission quality target according to the first communication device in the first manner, and details are not described herein again.
  • the second communication device does not need to determine the first transmission quality target (corresponding to the scheme in which the second communication device measures the channel based on the second transmission quality target in the first application scenario in step 102).
  • the second transmission quality target is a transmission quality target previously stored by the first communication device and the second communication device. It may be a transmission quality target agreed by the first communication device and the second communication device. For example, BLER ⁇ 0.1 is taken as the second transmission quality target.
  • the transmission quality target of the transmission data may be carried in the physical layer control signaling or the high layer signaling, and the high layer signaling may be the medium access control.
  • Media Access Control referred to as: MAC
  • radio resource control English: Radio Resource Control, referred to as: RRC
  • the effective time of the first transmission quality target may be set, for example, the physical layer signaling may indicate the effective time of the single transmission quality target, or the high-level signaling may indicate the effective time of the multiple single transmission quality targets. .
  • the priority may be defined in advance, for example, the high layer signaling and the physical layer signaling are simultaneously received, which is determined by the indication of the physical layer signaling. Or, when the physical layer signaling indicates the first transmission quality target in the effective time of the transmission quality target with the transmission data indicated by the high layer signaling, the indication of the physical layer signaling is taken as the standard.
  • the first communications device acquires first channel quality information.
  • the first channel quality information is used to indicate channel quality between the first communication device and the second communication device, and the first channel quality information is obtained based on the first transmission quality target.
  • the first transmission quality target may include at least one of a target error block rate (Block Error Rate, BLER for short) and a target signal to noise ratio (SNR: SNR).
  • the first channel quality information may include a channel quality indicator (CQI), a precoding matrix identifier (PMI), and a rank indicator. At least one of the knowledge (English: Rank Indication, RI for short).
  • the first communications device receives the first channel quality information transmitted by the second communications device.
  • the second communication device obtains the first transmission quality target, and measures the channel according to the first transmission quality target, and generates first channel quality information to be sent to the first communication device.
  • the first communications device receives the second channel quality information sent by the second communications device, and obtains the first channel quality information according to the second channel quality information, where the second channel quality information is based on the second communications device.
  • Channel quality between the first communication device and the second communication device measured by the second transmission quality target; when the first communication device determines that the second transmission quality target is the same as the first transmission quality target, the second channel quality information is taken as the first Channel quality information; when the first communication device determines that the second transmission quality target is different from the first transmission quality target, acquiring the first channel quality information according to the second channel quality information.
  • the first application scenario will be described by taking Table 1 as an example.
  • Table 1 two transmission quality objectives are shown in Table 1: BLER ⁇ 0.1 and BLER ⁇ 0.00001
  • the first channel quality information includes CQI
  • Table 1 is represented by CQI index (English: Index) to BLER ⁇ 0.00001 is the first transmission quality target
  • BLER ⁇ 0.1 is the second transmission quality target as an example.
  • the first communication device receives the second channel quality information sent by the second communication device, indicating that the CQI is 6, but the second transmission quality target is different from the first transmission quality target, and the second channel quality information is based on the second communication device.
  • the first communications device measures channel quality of the sounding signal transmitted by the second communications device and generates first channel quality information.
  • Steps 101 and 102 do not have an inevitable sequence.
  • the first communications device determines, according to the first transmission quality target and the first channel quality information, a coded modulation mode (English: Modulation and Coding Scheme, MCS), and encodes the data to be transmitted according to the MCS of the data to be transmitted. modulation.
  • a coded modulation mode English: Modulation and Coding Scheme, MCS
  • the first communication device may determine the MCS of the data to be transmitted according to the preset mapping relationship or the preset mapping list according to the first transmission quality target and the first channel quality information.
  • Table 1 includes the mapping relationship between the first transmission quality target and the first channel quality information.
  • Table 2 shows a specific first channel quality information and data to be transmitted.
  • MCS mapping relationship MCS can include quadrature phase shift keying (English: Quadrature Phase Shift Keyin, referred to as: QPSK), 16 Quadrature amplitude modulation (English: Quadrature Amplitude Modulation, referred to as: QAM), 64QAM.
  • mapping lists may be used for different transmission quality targets, for example, for two transmission quality targets BLER ⁇ 0.1 and BLER ⁇ 0.00001, when the first transmission quality target Table 2 can be used for BLER ⁇ 0.1.
  • Table 3 can be used when the first transmission quality target is BLER ⁇ 0.00001.
  • the MCS in Table 3 can include Binary Phase Shift Keying (BPSK).
  • BPSK Binary Phase Shift Keying
  • QPSK QPSK
  • 16QAM 16QAM
  • 64QAM 64QAM
  • 256QAM 256QAM.
  • the first communications device sends the MCS of the data to be transmitted and the coded modulated data to be transmitted to the second communications device.
  • Steps 101 to 104a of FIG. 1a are schematic diagrams of the first communication device transmitting data to the second communication device.
  • FIG. 1b is a schematic flowchart of the second communication device transmitting data to the first communication device, FIG. 1b.
  • Another data transmission method shown includes the following steps:
  • the first communications device acquires a first transmission quality target.
  • the first communications device acquires first channel quality information.
  • the first channel quality information is used to indicate channel quality between the first communication device and the second communication device, and the first channel quality information is obtained based on the first transmission quality target.
  • the first communications device determines, according to the first transmission quality target and the first channel quality information, a coded modulation mode MCS of the data to be transmitted.
  • the first communications device sends the MCS of the data to be transmitted to the second communications device.
  • the first communications device receives the data to be transmitted modulated by the second communications device according to the MCS code of the data to be transmitted.
  • the first communication device may be a base station
  • the second communication device may be a UE.
  • Step 101-Step 104a is a scenario for downlink data transmission
  • steps 101-105b are scenarios for uplink data transmission.
  • an adaptive coded modulation technique is generally adopted to improve spectrum utilization on the basis of satisfying communication quality.
  • the so-called adaptive code modulation means that the communication receiving end measures the quality of the channel and feeds back the channel quality to the transmitting end.
  • the transmitting end selects the most suitable coding and modulation mode under the transmission quality target according to a preset transmission quality target (for example, a packet error rate of 10%), and transmits and modulates the transmission signal to the receiving end.
  • a preset transmission quality target for example, a packet error rate of 10%
  • the communication receiving end measures the quality of the channel, and according to the transmission quality target agreed with the transmitting end, gives the recommended coding modulation mode feedback to the transmitting end, and the transmitting end transmits according to the recommended coding modulation mode.
  • a transmission quality target is usually agreed.
  • the transmission quality target of a primary air interface transmission is a packet error rate of less than 0.1.
  • the error rate can be further reduced by retransmission, such as the 3GPP LTE system. It can perform 8 retransmissions, but multiple retransmissions will increase the transmission delay. For services that require extremely low latency and require high reliability, the requirements cannot be met.
  • the present invention can flexibly determine a transmission quality target suitable for data to be transmitted, and then acquire the first channel quality information based on the transmission quality target and determine an MCS that satisfies the transmission quality target of the data to be transmitted, thereby satisfying the service requirement of the data transmission. For example, for data transmission requiring low latency and high reliability, a higher transmission quality target may be selected, corresponding to a lower order modulation mode and a lower code rate, and for data transmission with less delay requirement, a selection may be selected.
  • the lower transmission quality target, corresponding to the higher-order modulation mode and higher code rate meets the requirements of different services for delay and reliability, and takes into account system efficiency.
  • the first communication device acquires the first transmission quality target and the first channel quality information, and determines a coded modulation mode MCS of the data to be transmitted according to the first transmission quality target and the first channel quality information;
  • the MCS of the data to be transmitted is sent to the second communication device;
  • the MCS to be transmitted according to the data to be transmitted is code modulated, and the coded modulated data to be transmitted is transmitted to the second communication device, or the second communication device is received according to the data to be transmitted.
  • the MCS encodes the modulated data to be transmitted.
  • the MCS of the data to be transmitted is determined according to the first transmission quality target and the first channel quality information, so that each transmitted data determines the MCS according to the respective transmission quality target and the first channel quality information, and the transmission in the prior art is solved.
  • the quality goal cannot meet the requirements of low latency and high reliability services and system efficiency requirements.
  • a data transmission method according to another embodiment of the present invention corresponding to the second communication device side method of the data transmission method described in the embodiment corresponding to FIG. 1a, refers to FIG. 2a. Show, including the following steps:
  • the second communications device receives the coded modulation mode MCS of the data to be transmitted sent by the first communications device.
  • the MCS of the data to be transmitted is determined by the first communications device according to the first transmission quality target and the first channel quality information.
  • the method may further include:
  • the second communication device acquires the first transmission quality target, generates first channel quality information based on the first transmission quality target, and the second communication device transmits the first channel quality information to the first communication device.
  • the second communications device may determine the first transmission quality target among the multiple transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted, and the delay of the data to be transmitted. The smaller the requirement, the higher the first transmission quality target, the higher the reliability requirement of the data to be transmitted, and the higher the first transmission quality target.
  • the second communication device may send the first transmission quality target to the first communication device.
  • the second communications device can receive the first one sent by the first communications device Transmission quality objectives.
  • the method may further include:
  • the second communication device measures the channel based on the second transmission quality target and generates second channel quality information
  • the second communication device transmits the second channel quality information to the first communication device.
  • the second communication device may determine the first transmission quality target among the multiple transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted, and send the first transmission quality target to the first a communication device, so that the first communication device acquires the first channel quality information by itself, the smaller the delay requirement of the data to be transmitted, the higher the first transmission quality target, and the higher the reliability requirement of the data to be transmitted, the first transmission quality target The higher.
  • the second communications device receives the data to be transmitted sent by the first communications device, and performs demodulation and decoding on the data to be transmitted according to the MCS of the data to be transmitted.
  • Steps 201 to 201a of Figure 2a are schematic diagrams of the first communication device transmitting data to the second communication device.
  • Figure 2b is a flow diagram of the second communication device transmitting data to the first communication device.
  • Figure 2b Another data transmission method shown includes the following steps:
  • the second communications device receives the coded modulation mode MCS of the data to be transmitted sent by the first communications device.
  • the MCS of the data to be transmitted is determined by the first communications device according to the first transmission quality target and the first channel quality information.
  • the second communications device performs code modulation on the MCS to be transmitted according to the data to be transmitted, and sends the coded modulated data to be transmitted to the first communications device.
  • the MCS of the data to be transmitted may be determined by the first communications device according to the first mapping quality target and the first channel quality information according to a preset mapping relationship or a preset mapping list.
  • the transmission quality target may include at least one of a target block error rate BLER and a target signal to noise ratio SNR, where the first channel quality information may include a channel quality indicator CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI. At least one.
  • the second communication device receives the coded modulation mode MCS of the data to be transmitted sent by the first communication device, receives the data to be transmitted sent by the first communication device, and transmits the data according to the MCS of the data to be transmitted.
  • the data is demodulated and decoded; or, the MCS to be transmitted according to the data to be transmitted is code modulated and the coded modulated data to be transmitted is transmitted to the first communication device.
  • the MCS of the data to be transmitted is determined according to the first transmission quality target and the first channel quality information, so that each transmitted data determines the MCS according to the respective transmission quality target and the first channel quality information, and the transmission in the prior art is solved.
  • the quality goal cannot meet the requirements of low latency and high reliability services and system efficiency requirements.
  • the communication device may be a base station, and the second communication device may be a UE, and the data transmission between the base station and the UE is taken as an example, as follows:
  • FIG. 3a shows the transmission process of the downlink data
  • FIG. 3b shows the transmission process of the uplink data.
  • the method includes the following steps:
  • the base station determines a first transmission quality target among multiple transmission quality targets.
  • the base station sends a first transmission quality target to the UE.
  • the UE measures a channel according to the first transmission quality target sent by the base station, and generates first channel quality information.
  • the UE sends the first channel quality information to the base station.
  • the base station determines, according to the first channel quality information, an MCS of the data to be transmitted.
  • the method further includes:
  • the base station sends, to the UE, the MCS of the data to be transmitted and the data to be transmitted modulated according to the MCS code of the data to be transmitted.
  • the method further includes:
  • the base station sends the MCS of the data to be transmitted to the UE.
  • the UE performs coding and modulation on the to-be-transmitted data of the MCS to be transmitted by the base station, and then sends the coded modulated data to be transmitted to the base station.
  • FIG. 4a shows a transmission process of downlink data
  • FIG. 4b shows a transmission process of uplink data.
  • the method includes the following steps:
  • the UE determines a first transmission quality target among multiple transmission quality targets.
  • the UE sends a first transmission quality target to the base station.
  • the UE measures a channel according to the first transmission quality target and generates first channel quality information.
  • the UE sends the first channel quality information to the base station.
  • the base station determines, according to the first channel quality information, an MCS of the data to be transmitted.
  • the method further includes:
  • the base station sends, to the UE, the MCS of the data to be transmitted and the data to be transmitted modulated according to the MCS code of the data to be transmitted.
  • the method further includes:
  • the base station sends the MCS of the data to be transmitted to the UE.
  • the UE After the UE performs coded modulation on the MCS to be transmitted data sent by the base station, the UE sends the coded modulated data to be transmitted to the base station.
  • FIG. 5a shows the transmission process of the downlink data
  • FIG. 5b shows the transmission process of the uplink data.
  • the data transmission method provided by the embodiment of the present invention includes the following step:
  • the UE measures a channel according to the second transmission quality target and generates second channel quality information.
  • the UE sends second channel quality information to the base station.
  • the base station determines whether the second transmission quality target is the same as the first transmission quality target.
  • step 504 When the second transmission quality target is different from the first transmission quality target, step 504 is performed, and then step 505 is performed; when the second transmission quality target is the same as the first transmission quality target, step 505 is directly performed.
  • the base station acquires first channel quality information according to the second channel quality information.
  • the base station Since the second channel quality information is measured based on the second transmission quality target, the base station converts the second channel quality information into first channel quality information adapted to the first transmission quality target.
  • the base station determines, according to the first channel quality information, an MCS of the data to be transmitted.
  • the method further includes:
  • the base station sends, to the UE, the MCS of the data to be transmitted and the data to be transmitted modulated according to the MCS code of the data to be transmitted.
  • the method further includes:
  • the base station sends the MCS of the data to be transmitted to the UE.
  • the UE After the UE performs coded modulation on the MCS to be transmitted data sent by the base station, the UE sends the coded modulated data to be transmitted to the base station.
  • FIG. 6a shows the transmission process of the downlink data
  • FIG. 6b shows the transmission process of the uplink data.
  • the data transmission method provided by the embodiment of the present invention includes the following step:
  • the base station determines a first transmission quality target among multiple transmission quality targets.
  • the UE sends a sounding signal to the base station.
  • the base station measures, according to the first transmission quality target, a channel quality of the sounding signal sent by the UE, and generates first channel quality information.
  • the base station determines, according to the first channel quality information, an MCS of the data to be transmitted.
  • the method further includes:
  • the base station sends, to the UE, the MCS of the data to be transmitted and the data to be transmitted modulated according to the MCS code of the data to be transmitted.
  • the method further includes:
  • the base station sends the MCS of the data to be transmitted to the UE.
  • the UE After coding and modulating the data to be transmitted by the MCS of the data to be transmitted sent by the base station, the UE sends the coded modulated data to be transmitted to the base station.
  • the first communication device acquires the first transmission quality target and the first channel quality information, and determines a coded modulation mode MCS of the data to be transmitted according to the first transmission quality target and the first channel quality information;
  • the MCS of the data to be transmitted is sent to the second communication device;
  • the MCS to be transmitted according to the data to be transmitted is code modulated, and the coded modulated data to be transmitted is transmitted to the second communication device, or the second communication device is received according to the data to be transmitted.
  • the MCS encodes the modulated data to be transmitted.
  • the MCS of the data to be transmitted is determined according to the first transmission quality target and the first channel quality information, so that each transmitted data determines the MCS according to the respective transmission quality target and the first channel quality information, and the transmission in the prior art is solved.
  • the quality goal cannot meet the requirements of low latency and high reliability services and system efficiency requirements.
  • the embodiment of the present invention provides a first communication device for performing the above-mentioned FIG. 1a, FIG. 3a,
  • the processing unit 701 is configured to obtain a first transmission quality target and first channel quality information, where the first channel quality information is used to indicate channel quality between the first communication device and the second communication device, where the first channel quality information is Obtained based on the first transmission quality target;
  • the processing unit 702 is further configured to determine, according to the first transmission quality target and the first channel quality information, a coded modulation mode MCS of the data to be transmitted, and code and modulate the data to be transmitted according to the MCS of the data to be transmitted;
  • the sending unit 702 is configured to send the MCS of the data to be transmitted and the data to be transmitted coded by the processing unit 701 to the second communication device and send the data to the second communication device.
  • the first communication device 70 further includes a receiving unit 703, which may also be used to perform the above The data transmission method described in the embodiment corresponding to FIG. 1b, FIG. 3b, FIG. 4b, FIG. 5b or FIG. 6b.
  • the processing unit 701 is configured to acquire the first transmission quality target and the first channel quality information, where The first channel quality information is used to indicate channel quality between the first communication device and the second communication device, and the first channel quality information is obtained based on the first transmission quality target;
  • the processing unit 701 is further configured to determine, according to the first transmission quality target and the first channel quality information, a coded modulation mode MCS of the data to be transmitted;
  • the sending unit 702 is configured to send the MCS of the data to be transmitted to the second communications device.
  • the receiving unit 703 is configured to receive data to be transmitted modulated by the second communication device according to the MCS code of the data to be transmitted.
  • the processing unit 701 is further configured to determine, according to the delay requirement and the reliability requirement of the data to be transmitted, the first transmission quality target among the multiple transmission quality targets, and the smaller the delay requirement of the data to be transmitted, the first transmission The higher the quality target, the higher the reliability requirement of the data to be transmitted, and the higher the first transmission quality target.
  • the sending unit 702 is further configured to send the first transmission quality target to the second communications device
  • the processing unit 701 is further configured to receive, by the receiving unit 703, the first channel quality information that is sent by the second communications device.
  • the receiving unit 703 is further configured to receive second channel quality information that is sent by the second communications device, where the second channel quality information is the first communications device and the second communications that are measured by the second communications device based on the second Channel quality between devices;
  • the processing unit 701 is further configured to acquire the first channel quality information according to the second channel quality information.
  • the processing unit 701 is further configured to receive, by the receiving unit 703, the first transmission quality target sent by the second communications device.
  • the processing unit 701 is further configured to measure channel quality of the sounding signal sent by the second communications device, and generate first channel quality information.
  • the processing unit 702 is further configured to determine, according to the first mapping quality target and the first channel quality information, the MCS of the data to be transmitted according to the preset mapping relationship or the preset mapping list.
  • the processing unit 701 is further configured to receive, by the receiving unit 703, first channel quality information that is sent by the second communications device.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a service type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality identifier CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the first communication device acquires the first transmission quality target and the first channel quality information, and determines a coded modulation mode MCS of the data to be transmitted according to the first transmission quality target and the first channel quality information;
  • the MCS is sent to the second communication device;
  • the MCS to be transmitted according to the data to be transmitted is coded and modulated, and the coded modulated data to be transmitted is transmitted to the second communication device, or the second communication device is received according to the MCS code of the data to be transmitted.
  • the modulated data to be transmitted is sent to the second communication device;
  • the MCS to be transmitted according to the data to be transmitted is coded and modulated, and the coded modulated data to be transmitted is transmitted to the second communication device, or the second communication device is received according to the MCS code of the data to be transmitted.
  • the MCS of the data to be transmitted is determined according to the first transmission quality target and the first channel quality information, so that each transmitted data determines the MCS according to the respective transmission quality target and the first channel quality information, and the transmission in the prior art is solved.
  • the quality goal cannot meet the requirements of low latency and high reliability services and system efficiency requirements.
  • the embodiment of the present invention provides a second signaling device for performing the foregoing FIG. 2a and FIG. 3a.
  • the receiving unit 802 is configured to receive a coded modulation mode MCS of the data to be transmitted sent by the first communications device, where the MCS of the data to be transmitted is determined by the first communications device according to the first transmission quality target and the first channel quality information;
  • the receiving unit 802 is further configured to receive data to be transmitted sent by the first communications device, and the processing unit 801 is configured to perform demodulation and decoding on the data to be transmitted according to the MCS of the data to be transmitted.
  • the processing unit 801 is further configured to acquire a first transmission quality target, and generate first channel quality information based on the first transmission quality target.
  • the sending unit 804 is further configured to send the first channel quality information to the first communications device.
  • the second communication device 80 may further include a sending unit 803, which may also be used to perform the above The data transmission method described in the embodiment corresponding to Fig. 2b, Fig. 3b, Fig. 4b, Fig. 5b or Fig. 6b.
  • the receiving unit 802 is configured to receive a coded modulation mode MCS of the data to be transmitted sent by the first communications device, where the MCS of the data to be transmitted is determined by the first communications device according to the first transmission quality target and the first channel quality information;
  • the processing unit 801 is configured to perform code modulation on the data to be transmitted according to the MCS of the data to be transmitted;
  • the sending unit 803 is configured to send the coded modulated data to be transmitted to the first communications device.
  • the processing unit 801 is further configured to determine, according to the delay requirement and the reliability requirement of the data to be transmitted, the first transmission quality target among the multiple transmission quality targets, and the smaller the delay requirement of the data to be transmitted, the first transmission The higher the quality target, the higher the reliability requirement of the data to be transmitted, and the higher the first transmission quality target.
  • the sending unit 803 is further configured to send the first transmission quality target to the first communications device.
  • the processing unit 801 is further configured to receive, by the receiving unit 802, the first transmission quality target sent by the first communications device.
  • processing unit 801 is further configured to determine the first transmission quality target among the multiple transmission quality targets according to the delay requirement and the reliability requirement of the data to be transmitted, and the delay requirement of the data to be transmitted is smaller. The higher the transmission quality target, the higher the reliability requirement of the data to be transmitted, and the higher the first transmission quality target;
  • the sending unit 803 is further configured to send the first transmission quality target to the first communications device.
  • the processing unit 801 is further configured to measure a channel and generate second channel quality information based on the second transmission quality target;
  • the sending unit 803 is further configured to send the second channel quality information to the first communications device.
  • the MCS of the data to be transmitted is determined by the first communications device according to the first mapping quality target and the first channel quality information according to a preset mapping relationship or a preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a service type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality identifier CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the second communication device receives the coded modulation mode MCS of the data to be transmitted sent by the first communication device, receives the data to be transmitted sent by the first communication device, and solves the data to be transmitted according to the MCS of the data to be transmitted. Or decoding; or, code-modulating the data to be transmitted according to the MCS of the data to be transmitted and transmitting the coded modulated data to be transmitted to the first communication device.
  • the MCS of the data to be transmitted is determined according to the first transmission quality target and the first channel quality information, so that each transmitted data determines the MCS according to the respective transmission quality target and the first channel quality information, and the transmission in the prior art is solved.
  • the quality goal cannot meet the requirements of low latency and high reliability services and system efficiency requirements.
  • the first communication device 90 includes: a processor 901, a memory 902, a transmitter 903, and a receiver 904.
  • the processor 901, the memory 902, the transmitter 903, and the receiver 904 are connected to each other.
  • the memory 902 is used to store data and programs, and the processor 901 is configured to call the program stored in the memory 902 to perform the operations corresponding to FIG. 1a, FIG. 3a, FIG. 4a, FIG. 5a or FIG. 6a through the transmitter 903 and the receiver 904.
  • the processor 901 is configured to acquire a first transmission quality target and first channel quality information, where the first channel quality information is used to indicate channel quality between the first communication device and the second communication device, where the first channel quality information is Obtained based on the first transmission quality target;
  • the processor 901 is further configured to determine, according to the first transmission quality target and the first channel quality information, a coded modulation mode MCS of the data to be transmitted, and code and modulate the data to be transmitted according to the MCS of the data to be transmitted;
  • the processor 901 is further configured to send, by using the transmitter 903, the MCS of the data to be transmitted and the coded modulated data to be transmitted to the second communication device.
  • the first communication device 90 can also be used to perform the above-mentioned FIG. 1b, FIG. 3b, FIG. 4b, FIG. Or the data transmission method described in the embodiment corresponding to FIG. 6b.
  • the processor 901 is configured to obtain a first transmission quality target and first channel quality information, where the first channel quality information is used to indicate channel quality between the first communication device and the second communication device, and the first channel quality is used. Information is obtained based on the first transmission quality target;
  • the processor 901 is further configured to determine, according to the first transmission quality target and the first channel quality information, a coded modulation mode MCS of the data to be transmitted;
  • the processor is further configured to send, by using the transmitter 903, the MCS that sends the data to be transmitted to the second communications device;
  • the processor is further configured to receive, by the receiver 904, the data to be transmitted modulated by the second communication device according to the MCS code of the data to be transmitted.
  • the processor 901 is further configured to determine, according to the delay requirement and the reliability requirement of the data to be transmitted, the first transmission quality target among the multiple transmission quality targets, and the smaller the delay requirement of the data to be transmitted, the first transmission The higher the quality target, the higher the reliability requirement of the data to be transmitted, and the higher the first transmission quality target.
  • the processor 901 is further configured to send the first transmission quality target to the second communication device by using the transmitter 903.
  • the processor 901 is further configured to receive, by the receiver 904, the second communication device to send. First channel quality information.
  • the processor 901 is further configured to receive, by the receiver 904, second channel quality information that is sent by the second communications device, where the second channel quality information is the first communications device that is measured by the second communications device based on the second transmission quality target. Channel quality with the second communication device;
  • the processor 901 is further configured to acquire the first channel quality information according to the second channel quality information.
  • the processor 901 is further configured to receive, by the receiver 904, the first transmission quality target sent by the second communications device.
  • the processor 901 is further configured to measure channel quality of the sounding signal sent by the second communications device, and generate first channel quality information.
  • the processor 901 is further configured to determine, according to the first transmission quality target and the first channel quality information, the MCS of the data to be transmitted according to the preset mapping relationship or the preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a service type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality identifier CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the first communication device acquires the first transmission quality target and the first channel quality information, and determines a coded modulation mode MCS of the data to be transmitted according to the first transmission quality target and the first channel quality information;
  • the MCS is sent to the second communication device; the MCS to be transmitted according to the data to be transmitted is coded and modulated, and the coded modulated data to be transmitted is transmitted to the second communication device, or the second communication device is received according to the MCS code of the data to be transmitted.
  • the modulated data to be transmitted Because the MCS of the data to be transmitted is determined according to the first transmission quality target and the first channel quality information, so that each transmitted data is determined according to the respective transmission quality target and the first channel quality information.
  • the MCS solves the problem that the transmission quality target in the prior art cannot meet the requirements of low-latency and high-reliability services and system efficiency requirements at the same time.
  • the embodiment of the present invention provides a second signaling device for performing the foregoing FIG. 2a and FIG. 3a.
  • the processor 1001, the memory 1002, the transmitter 1003, and the receiver 1004 are connected to each other.
  • the memory 1002 is used to store data and programs, and the processor 1001 is used to call the program stored in the memory 1002 to execute the embodiment corresponding to FIG. 2a, FIG. 3a, FIG. 4a, FIG. 5a or FIG. 6a through the transmitter 1003 and the receiver 1004.
  • the processor 1001 is configured to receive, by the receiver 1004, a coded modulation mode MCS of the data to be transmitted sent by the first communication device, where the MCS of the data to be transmitted is the first communication device according to the first transmission quality target and the first channel quality information. definite;
  • the processor 1001 is further configured to receive, by the receiver 1004, the data to be transmitted sent by the first communications device, and perform demodulation and decoding on the data to be transmitted according to the MCS of the data to be transmitted.
  • FIG. 6b Or the data transmission method described in the embodiment corresponding to FIG. 6b.
  • the processor 1001 is configured to receive, by the receiver 1004, a coded modulation mode MCS of the data to be transmitted sent by the first communication device, where the MCS of the data to be transmitted is the first communication device according to the first transmission quality target and the first channel quality information. definite;
  • the processor 1001 is further configured to perform code modulation on the MCS to be transmitted according to the data to be transmitted, and send the coded modulated data to be transmitted to the first communication device by using the transmitter 1003.
  • the processor 1001 is further configured to acquire a first transmission quality target, and generate first channel quality information based on the first transmission quality target.
  • the processor 1001 is further configured to send, by using the transmitter 1003, the first channel quality information to the first pass. Letter device.
  • the processor 1001 is further configured to determine, according to the delay requirement and the reliability requirement of the data to be transmitted, the first transmission quality target among the multiple transmission quality targets, and the smaller the delay requirement of the data to be transmitted, the first transmission The higher the quality target, the higher the reliability requirement of the data to be transmitted, and the higher the first transmission quality target. Further, the processor 1001 is further configured to send the first transmission quality target to the first communication device by using the transmitter 1003.
  • the processor 1001 is further configured to receive, by the receiver 1004, the first transmission quality target sent by the first communications device.
  • the processor 1001 is further configured to determine, according to a delay requirement and a reliability requirement of the data to be transmitted, a first transmission quality target among the multiple transmission quality targets, and send, by using the transmitter 1003, the first transmission quality target to the first transmission quality target.
  • the processor 1001 determines, according to a delay requirement and a reliability requirement of the data to be transmitted, a first transmission quality target among the multiple transmission quality targets, and send, by using the transmitter 1003, the first transmission quality target to the first transmission quality target.
  • the smaller the delay requirement of the data to be transmitted the higher the first transmission quality target, the higher the reliability requirement of the data to be transmitted, and the higher the first transmission quality target.
  • the processor 1001 is further configured to measure a channel and generate second channel quality information based on the second transmission quality target;
  • the processor 1001 is further configured to send the second channel quality information to the first communications device by using the transmitter 1003.
  • the MCS of the data to be transmitted is determined by the first communications device according to the first mapping quality target and the first channel quality information according to a preset mapping relationship or a preset mapping list.
  • the transmission quality target includes at least one of a target block error rate BLER and a target signal to noise ratio SNR and a service type and a parameter related to the transmission target. For example, if the target BLER is 0.1 or 0.00001, and the target SNR is 3dB or 6dB, whether the service is a low-latency, high-reliability service, or a normal service; other parameters related to the transmission target, such as the number of HARQs, whether the number of HARQs is zero or 8 Times. For example, the number of HARQs is zero, which corresponds to low-latency and high-reliability services, and the number of HARQs is 8 for normal services.
  • the first channel quality information includes at least one of a channel quality identifier CQI, a precoding modulation matrix identifier PMI, and a rank identifier RI.
  • the second communication device receives the coded modulation mode MCS of the data to be transmitted sent by the first communication device, receives the data to be transmitted sent by the first communication device, and solves the data to be transmitted according to the MCS of the data to be transmitted. Or decoding; or, code-modulating the data to be transmitted according to the MCS of the data to be transmitted and transmitting the coded modulated data to be transmitted to the first communication device.
  • the MCS of the data to be transmitted is determined according to the first transmission quality target and the first channel quality information, so that each transmitted data determines the MCS according to the respective transmission quality target and the first channel quality information, and the transmission in the prior art is solved.
  • the quality goal cannot meet the requirements of low latency and high reliability services and system efficiency requirements.
  • the embodiment of the present invention provides a wireless communication system for performing the data transmission method described in the foregoing embodiments corresponding to FIG. 1a to FIG. 6b.
  • the wireless communication system 110 includes a first communication device 1101 and a second communication device 1102.
  • the first communication device is the first communication device described in the embodiment corresponding to FIG. 7, and the second communication device is the first communication device described in the embodiment corresponding to FIG. 8;
  • the first communication device is the first communication device described in the embodiment corresponding to FIG. 9, and the second communication device is the first communication device described in the embodiment corresponding to FIG.
  • the first communication device acquires the first channel quality information, determines the coded modulation mode MCS of the data to be transmitted according to the first transmission quality target and the first channel quality information, and sends the MCS of the data to be transmitted. Up to the second communication device; encoding and modulating the data to be transmitted according to the MCS of the data to be transmitted and transmitting the coded data to be transmitted to the second communication device, or receiving the MCS code modulated according to the data to be transmitted by the second communication device Data to be transmitted.
  • the MCS of the data to be transmitted is determined according to the first transmission quality target and the first channel quality information, so that each transmitted data determines the MCS according to the respective transmission quality target and the first channel quality information, and the transmission in the prior art is solved.
  • the quality goal cannot meet the requirements of low latency and high reliability services and system efficiency requirements.
  • the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明公开了一种数据传输方法、设备及系统,涉及通信技术领域,能够解决现有技术中传输质量目标无法同时满足低时延高可靠性业务的需求和系统效率需求的问题。具体方案为:第一通信设备获取第一传输质量目标和第一信道质量信息,根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS,根据待传输数据的MCS对待传输数据进行编码调制;将待传输数据的MCS及编码调制后的待传输数据发送至第二通信设备。本发明用于数据传输。

Description

数据传输方法、设备及系统 技术领域
本发明涉及通信技术领域,特别涉及一种数据传输方法、设备及系统。
背景技术
在无线通信系统中,如长期演进(英文:Long Term Evolution,简称:LTE)系统、第三代合作伙伴计划(英文:3rd Generation Partnership Project,简称:3GPP)系统等,当两个通信设备之间进行数据传输时,需要根据预先设定的传输质量目标确定编码调制方式(英文:Modulation and Coding Scheme,简称:MCS),根据确定的编码调制方式对数据进行编码调制并传输。
现有技术中,对于可靠性要求较高的业务,只能通过多次重传保证传输质量目标,但多次重传会增加传输时延,对于要求极低时延,同时要求可靠性较高的业务则无法满足要求,而如果提高传输质量目标,则会降低系统传输效率。
因此,现有技术中传输质量目标无法同时满足低时延高可靠性业务的需求和系统效率需求。
发明内容
为了解决现有技术中传输质量目标无法同时满足低时延高可靠性业务的需求和系统效率需求的问题,本发明提供了一种数据传输方法、设备及系统。所述技术方案如下:
第一方面,本发明提供一种数据传输方法,包括:
第一通信设备获取第一传输质量目标;
第一通信设备获取第一信道质量信息,第一信道质量信息用于指示第一通信设备和第二通信设备之间的信道质量,第一信道质量信息是基于第一传输质量目标得到的;
第一通信设备根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS,根据待传输数据的MCS对待传输数据进行编码调制;
第一通信设备将待传输数据的MCS及编码调制后的待传输数据发送至第二通信设备。
在一种可能的实现中,第一通信设备获取第一传输质量目标,包括:
第一通信设备根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标。示例性的,待传输数据的时延要求越小,第一传输质量目标越高,待传输数据的可靠性要求越高,第一传输质量目标越高。进一步的,该方法还包括:第一通信设备将第一传输质量目标发送至第二通信设备;第一通信设备获取第一信道质量信息,包括:第一通信设备接收第二通信设备发送的第一信道质量信息。
在一种可能的实现中,第一通信设备获取第一信道质量信息,包括:
第一通信设备接收第二通信设备发送的第二信道质量信息,第二信道质量信息为第二通信设备基于第二传输质量目标测量的第一通信设备与第二通信设备之间的信道质量;
当第一通信设备确定第二传输质量目标与第一传输质量目标相同时,将第二信道质量信息作为第一信道质量信息;
当第一通信设备确定第二传输质量目标与第一传输质量目标不同时,根据第二信道质量信息获取第一信道质量信息。
第二传输质量目标是第一通信设备和第二通信设备预先存储的一个传输质量目标。可以是第一通信设备和第二通信设备约定的一个传输质量目标。
在一种可能的实现中,第一通信设备获取第一传输质量目标,包括:
第一通信设备接收第二通信设备发送的第一传输质量目标。
在一种可能的实现中,第一通信设备获取第一信道质量信息,包括:
第一通信设备测量第二通信设备发送的探测信号的信道质量,并生成第一信道质量信息。
在一种可能的实现中,第一通信设备获取第一信道质量信息,包括:
第一通信设备接收第二通信设备发送的第一信道质量信息。
在一种可能的实现中,第一通信设备根据第一传输质量目标及第一信道质量信息确定待传输数据的MCS,包括:
第一通信设备根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定待传输数据的MCS。
在一种可能的实现中,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如混合自动重传请求(英文:Hybrid Automatic Repeat reQuest,简称:HARQ)次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
在一种可能的实现中,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
第二方面,本发明提供一种数据传输方法,包括:
第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息确定的;
第二通信设备接收第一通信设备发送的待传输数据,并根据待传输数据的MCS对待传输数据进行解调解码。
在一种可能的实现中,第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS之前,该方法还包括:
第二通信设备获取第一传输质量目标,基于第一传输质量目标生成第一信道质量信息;
第二通信设备将第一信道质量信息发送至第一通信设备。
进一步的,第二通信设备获取第一传输质量目标,包括:
第二通信设备根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标。进一步的,该方法还包括:第二通信设备将第一传输质量目标发送至第一通信设备。
或者,第二通信设备获取第一传输质量目标,包括:第二通信设备接收第一通信设备发送的第一传输质量目标。
在一种可能的实现中,第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS之前,第二通信设备获取第一传输质量目标,该方法还包括:
第二通信设备根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标;
第二通信设备将第一传输质量目标发送至第一通信设备。
在一种可能的实现中,第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS之前,该方法还包括:
第二通信设备基于第二传输质量目标测量信道并生成第二信道质量信息;
第二通信设备将第二信道质量信息发送至第一通信设备。
第二传输质量目标是第一通信设备和第二通信设备预先存储的一个传输质量目标。可以是第一通信设备和第二通信设备约定的一个传输质量目标。
在一种可能的实现中,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定的。
在一种可能的实现中,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
在一种可能的实现中,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
第三方面,本发明提供一种数据传输方法,是第一方面或第一方面的任意一种可能的实现中所描述的数据传输方法对应的第二通信设备向第一通信设备发送数据的方法,该方法包括:
第一通信设备获取第一传输质量目标;
第一通信设备获取第一信道质量信息,第一信道质量信息用于指示第一通信设备和第二通信设备之间的信道质量,第一信道质量信息是基于第一传输质量目标得到的;
第一通信设备根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS;
第一通信设备将待传输数据的MCS发送至第二通信设备;
第一通信设备接收第二通信设备根据待传输数据的MCS编码调制后的待传输数据。
在一种可能的实现中,第一通信设备获取第一传输质量目标,包括:
第一通信设备根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标。示例性的,待传输数据的时延要求越小,第一传输质量目标越高,待传输数据的可靠性要求越高,第一传输质量目标越高。进一步的,该方法还包括:第一通信设备将第一传输质量目标发送至第二通信设备;第一通信设备获取第一信道质量信息,包括:第一通信设备接收第二通信设备发送的第一信道质量信息。
在一种可能的实现中,第一通信设备获取第一信道质量信息,包括:
第一通信设备接收第二通信设备发送的第二信道质量信息,第二信道质量信息为第二通信设备基于第二传输质量目标测量的第一通信设备与第二通信设备之间的信道质量;
当第一通信设备确定第二传输质量目标与第一传输质量目标相同时,将第 二信道质量信息作为第一信道质量信息;
当第一通信设备确定第二传输质量目标与第一传输质量目标不同时,根据第二信道质量信息获取第一信道质量信息。
第二传输质量目标是第一通信设备和第二通信设备预先存储的一个传输质量目标。可以是第一通信设备和第二通信设备约定的一个传输质量目标。
在一种可能的实现中,第一通信设备获取第一传输质量目标,包括:
第一通信设备接收第二通信设备发送的第一传输质量目标。
在一种可能的实现中,第一通信设备获取第一信道质量信息,包括:
第一通信设备测量第二通信设备发送的探测信号的信道质量,并生成第一信道质量信息。
在一种可能的实现中,第一通信设备获取第一信道质量信息,包括:
第一通信设备接收第二通信设备发送的第一信道质量信息。
在一种可能的实现中,第一通信设备根据第一传输质量目标及第一信道质量信息确定待传输数据的MCS,包括:
第一通信设备根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定待传输数据的MCS。
在一种可能的实现中,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
在一种可能的实现中,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
第四方面,本发明提供一种数据传输方法,是第二方面或第二方面的任意一种可能的实现中所描述的数据传输方法对应的第二通信设备向第一通信设 备发送数据的方法,该方法包括:
第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息确定的;
第二通信设备根据待传输数据的MCS对待传输数据进行编码调制,并向第一通信设备发送编码调制后的待传输数据。
在一种可能的实现中,第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS之前,该方法还包括:
第二通信设备获取第一传输质量目标,基于第一传输质量目标生成第一信道质量信息;
第二通信设备将第一信道质量信息发送至第一通信设备。
进一步的,第二通信设备获取第一传输质量目标,包括:
第二通信设备根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标。进一步的,该方法还包括:第二通信设备将第一传输质量目标发送至第一通信设备。
或者,第二通信设备获取第一传输质量目标,包括:第二通信设备接收第一通信设备发送的第一传输质量目标。
在一种可能的实现中,第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS之前,第二通信设备获取第一传输质量目标,该方法还包括:
第二通信设备根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标;
第二通信设备将第一传输质量目标发送至第一通信设备。
在一种可能的实现中,第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS之前,该方法还包括:
第二通信设备基于第二传输质量目标测量信道并生成第二信道质量信息;
第二通信设备将第二信道质量信息发送至第一通信设备。
第二传输质量目标是第一通信设备和第二通信设备预先存储的一个传输质量目标。可以是第一通信设备和第二通信设备约定的一个传输质量目标。
在一种可能的实现中,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定的。
在一种可能的实现中,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
在一种可能的实现中,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
第五方面,本发明提供一种第一通信设备,该第一通信设备包括:处理单元和发送单元;
处理单元,用于获取第一传输质量目标和第一信道质量信息,第一信道质量信息用于指示第一通信设备和第二通信设备之间的信道质量,第一信道质量信息是基于第一传输质量目标得到的;
处理单元,还用于根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS,根据待传输数据的MCS对待传输数据进行编码调制;
发送单元,用于将待传输数据的MCS及处理单元编码调制后的待传输数据发送至第二通信设备。
在一种可能的实现中,处理单元,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标。进一步的,第一通信设备还包括接收单元,发送单元,还用于将第一传输质量目标发送至第二通信 设备;处理单元,还用于通过接收单元接收第二通信设备发送的第一信道质量信息。
在一种可能的实现中,第一通信设备还包括接收单元,用于接收第二通信设备发送的第二信道质量信息,第二信道质量信息为第二通信设备基于第二传输质量目标测量的第一通信设备与第二通信设备之间的信道质量;
处理单元,还用于根据第二信道质量信息获取第一信道质量信息。
在一种可能的实现中,第一通信设备还包括接收单元,
处理单元,还用于通过接收单元接收第二通信设备发送的第一传输质量目标。
在一种可能的实现中,处理单元,还用于测量第二通信设备发送的探测信号的信道质量,并生成第一信道质量信息。
在一种可能的实现中,第一通信设备还包括接收单元,
处理单元,还用于通过接收单元接收第二通信设备发送的第一信道质量信息。
在一种可能的实现中,处理单元,还用于根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定待传输数据的MCS。
在一种可能的实现中,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
在一种可能的实现中,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
第六方面,本发明提供一种第二通信设备,该第二通信设备包括:处理单元和接收单元;
接收单元,用于接收第一通信设备发送的待传输数据的编码调制方式MCS,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息确定的;
接收单元,还用于接收第一通信设备发送的待传输数据,处理单元,用于根据待传输数据的MCS对待传输数据进行解调解码。
在一种可能的实现中,处理单元,还用于获取第一传输质量目标;基于第一传输质量目标生成第一信道质量信息;
发送单元,还用于将第一信道质量信息发送至第一通信设备。
进一步的,处理单元,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标。进一步的,发送单元,还用于将第一传输质量目标发送至第一通信设备。
或者,处理单元,还用于通过接收单元接收第一通信设备发送的第一传输质量目标。
在一种可能的实现中,处理单元,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标;
发送单元,还用于将第一传输质量目标发送至第一通信设备。
在一种可能的实现中,该第二通信设备还包括处理单元,用于基于第二传输质量目标测量信道并生成第二信道质量信息;
发送单元,还用于将第二信道质量信息发送至第一通信设备。
在一种可能的实现中,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定的。
在一种可能的实现中,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次 数为8对应普通业务。
在一种可能的实现中,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
第七方面,本发明提供一种第一通信设备,包括:处理单元、发送单元和接收单元;
处理单元,用于获取第一传输质量目标及第一信道质量信息,第一信道质量信息用于指示第一通信设备和第二通信设备之间的信道质量,第一信道质量信息是基于第一传输质量目标得到的;
处理单元,还用于根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS;
发送单元,用于将待传输数据的MCS发送至第二通信设备;
接收单元,用于接收第二通信设备根据待传输数据的MCS编码调制后的待传输数据。
在一种可能的实现中,处理单元,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标。进一步的,第一通信设备还包括接收单元,发送单元,还用于将第一传输质量目标发送至第二通信设备;处理单元,还用于通过接收单元接收第二通信设备发送的第一信道质量信息。
在一种可能的实现中,第一通信设备还包括接收单元,用于接收第二通信设备发送的第二信道质量信息,第二信道质量信息为第二通信设备基于第二传输质量目标测量的第一通信设备与第二通信设备之间的信道质量;
处理单元,还用于根据第二信道质量信息获取第一信道质量信息。
在一种可能的实现中,第一通信设备还包括接收单元,
处理单元,还用于通过接收单元接收第二通信设备发送的第一传输质量目标。
在一种可能的实现中,处理单元,还用于测量第二通信设备发送的探测信 号的信道质量,并生成第一信道质量信息。
在一种可能的实现中,第一通信设备还包括接收单元,
处理单元,还用于通过接收单元接收第二通信设备发送的第一信道质量信息。
在一种可能的实现中,处理单元,还用于根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定待传输数据的MCS。
在一种可能的实现中,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
在一种可能的实现中,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
第八方面,本发明提供一种第二通信设备,包括:处理单元、发送单元和接收单元;
接收单元用于接收第一通信设备发送的待传输数据的编码调制方式MCS,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息确定的;
处理单元,用于根据待传输数据的MCS对待传输数据进行编码调制;
发送单元,用于向第一通信设备发送编码调制后的待传输数据。
在一种可能的实现中,处理单元,还用于获取第一传输质量目标;基于第一传输质量目标生成第一信道质量信息;
发送单元,还用于将第一信道质量信息发送至第一通信设备。
进一步的,处理单元,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标。进一步的,发送单元,还用于将 第一传输质量目标发送至第一通信设备。
或者,处理单元,还用于通过接收单元接收第一通信设备发送的第一传输质量目标。
在一种可能的实现中,处理单元,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标;
发送单元,还用于将第一传输质量目标发送至第一通信设备。
在一种可能的实现中,该第二通信设备还包括处理单元,用于基于第二传输质量目标测量信道并生成第二信道质量信息;
发送单元,还用于将第二信道质量信息发送至第一通信设备。
在一种可能的实现中,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定的。
在一种可能的实现中,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
在一种可能的实现中,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
第九方面,本发明提供一种第一通信设备,包括:处理器、存储器、发送器和接收器,该处理器、存储器、发送器和接收器相互连接;
其中,处理器,用于获取第一传输质量目标和第一信道质量信息,第一信道质量信息用于指示第一通信设备和第二通信设备之间的信道质量,第一信道质量信息是基于第一传输质量目标得到的;
处理器,还用于根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS,根据待传输数据的MCS对待传输数据进行编码调制;
处理器,还用于通过发送器将将待传输数据的MCS及编码调制后的待传输数据发送至第二通信设备。
在一种可能的实现中,处理器,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标。
进一步的,处理器,还用于通过发送器将第一传输质量目标发送至第二通信设备;处理器,还用于通过接收器接收第二通信设备发送的第一信道质量信息。
在一种可能的实现中,处理器,还用于通过接收器接收第二通信设备发送的第二信道质量信息,第二信道质量信息为第二通信设备基于第二传输质量目标测量的第一通信设备与第二通信设备之间的信道质量;
处理器,还用于根据第二信道质量信息获取第一信道质量信息。
在一种可能的实现中,处理器,还用于通过接收器接收第二通信设备发送的第一传输质量目标。
在一种可能的实现中,处理器,还用于测量第二通信设备发送的探测信号的信道质量,并生成第一信道质量信息。
在一种可能的实现中,处理器,还用于通过接收器接收第二通信设备发送的第一信道质量信息。
在一种可能的实现中,处理器,还用于根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定待传输数据的MCS。
在一种可能的实现中,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
在一种可能的实现中,第一信道质量信息包括信道质量标识CQI、预编码 调制矩阵标识PMI和秩标识RI中的至少一项。
第十方面,本发明提供一种第二通信设备,包括:包括:处理器、存储器、发送器和接收器,该处理器、存储器、发送器和接收器相互连接;
其中,处理器,用于通过接收器接收第一通信设备发送的待传输数据的编码调制方式MCS,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息确定的;
处理器,还用于通过接收器接收第一通信设备发送的待传输数据,并根据待传输数据的MCS对待传输数据进行解调解码。
在一种可能的实现中,处理器,还用于获取第一传输质量目标,基于第一传输质量目标生成第一信道质量信息;
处理器,还用于通过发送器将第一信道质量信息发送至第一通信设备。
进一步的,在一种可能的实现中,处理器,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标。进一步的,处理器,还用于通过发送器将第一传输质量目标发送至第一通信设备。
或者,处理器,还用于通过接收器接收第一通信设备发送的第一传输质量目标。
在一种可能的实现中,处理器,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标,通过发送器将第一传输质量目标发送至第一通信设备。
在一种可能的实现中,处理器,还用于基于第二传输质量目标测量信道并生成第二信道质量信息;
处理器,还用于通过发送器将第二信道质量信息发送至第一通信设备。
在一种可能的实现中,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定的。
在一种可能的实现中,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是 0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
在一种可能的实现中,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
第十一方面,本发明提供一种第一通信设备,包括:处理器、存储器、发送器和接收器,该处理器、存储器、发送器和接收器相互连接;
其中,处理器,用于获取第一传输质量目标和第一信道质量信息,第一信道质量信息用于指示第一通信设备和第二通信设备之间的信道质量,第一信道质量信息是基于第一传输质量目标得到的;
处理器,还用于根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS;
处理器,还用于通过发送器将将待传输数据的MCS发送至第二通信设备;
处理器,还用于通过接收器接收第二通信设备根据待传输数据的MCS编码调制后的待传输数据。
在一种可能的实现中,处理器,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标。
进一步的,处理器,还用于通过发送器将第一传输质量目标发送至第二通信设备;处理器,还用于通过接收器接收第二通信设备发送的第一信道质量信息。
在一种可能的实现中,处理器,还用于通过接收器接收第二通信设备发送的第二信道质量信息,第二信道质量信息为第二通信设备基于第二传输质量目标测量的第一通信设备与第二通信设备之间的信道质量;
处理器,还用于根据第二信道质量信息获取第一信道质量信息。
在一种可能的实现中,处理器,还用于通过接收器接收第二通信设备发送 的第一传输质量目标。
在一种可能的实现中,处理器,还用于测量第二通信设备发送的探测信号的信道质量,并生成第一信道质量信息。
在一种可能的实现中,处理器,还用于通过接收器接收第二通信设备发送的第一信道质量信息。
在一种可能的实现中,处理器,还用于根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定待传输数据的MCS。
在一种可能的实现中,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
在一种可能的实现中,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
第十二方面,本发明提供一种第二通信设备,包括:包括:处理器、存储器、发送器和接收器,该处理器、存储器、发送器和接收器相互连接;
其中,处理器,用于通过接收器接收第一通信设备发送的待传输数据的编码调制方式MCS,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息确定的;
处理器,还用于根据待传输数据的MCS对待传输数据进行编码调制,并通过发送器向第一通信设备发送编码调制后的待传输数据。
在一种可能的实现中,处理器,还用于获取第一传输质量目标,基于第一传输质量目标生成第一信道质量信息;
处理器,还用于通过发送器将第一信道质量信息发送至第一通信设备。
进一步的,在一种可能的实现中,处理器,还用于根据待传输数据的时延 要求和可靠性要求在多个传输质量目标中确定第一传输质量目标。进一步的,处理器,还用于通过发送器将第一传输质量目标发送至第一通信设备。
或者,处理器,还用于通过接收器接收第一通信设备发送的第一传输质量目标。
在一种可能的实现中,处理器,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标,通过发送器将第一传输质量目标发送至第一通信设备。
在一种可能的实现中,处理器,还用于基于第二传输质量目标测量信道并生成第二信道质量信息;
处理器,还用于通过发送器将第二信道质量信息发送至第一通信设备。
在一种可能的实现中,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定的。
在一种可能的实现中,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
在一种可能的实现中,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
第十三方面,本发明提供一种无线通信系统,包括:第一通信设备和第二通信设备;
第一通信设备为第五方面或第五方面的任意一种可能的实现中所描述的第一通信设备,第二通信设备为第六方面或第六方面的任意一种可能的实现中所描述的第一通信设备。
第十四方面,本发明提供一种无线通信系统,包括:第一通信设备和第二 通信设备;
第一通信设备为第七方面或第七方面的任意一种可能的实现中所描述的第一通信设备,第二通信设备为第八方面或第八方面的任意一种可能的实现中所描述的第一通信设备。
第十五方面,本发明提供一种无线通信系统,包括:第一通信设备和第二通信设备;
第一通信设备为第九方面或第九方面的任意一种可能的实现中所描述的第一通信设备,第二通信设备为第十方面或第十方面的任意一种可能的实现中所描述的第一通信设备。
第十六方面,本发明提供一种无线通信系统,包括:第一通信设备和第二通信设备;
第一通信设备为第十一方面或第十一方面的任意一种可能的实现中所描述的第一通信设备,第二通信设备为第十二方面或第十二方面的任意一种可能的实现中所描述的第一通信设备。
本发明实施例提供的一种数据传输方法、设备及系统,第一通信设备获取第一信道质量信息,根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS;将待传输数据的MCS发送至第二通信设备;根据待传输数据的MCS对待传输数据进行编码调制并向第二通信设备发送编码调制后的待传输数据,或者,接收第二通信设备根据待传输数据的MCS编码调制后的待传输数据。因为根据第一传输质量目标及第一信道质量信息确定了待传输数据的MCS,使得每次传输的数据都根据各自的传输质量目标及第一信道质量信息确定MCS,解决了现有技术中传输质量目标无法同时满足低时延高可靠性业务的需求和系统效率需求的问题。
应当理解的是,以上的一般描述和后文的细节描述仅是示例性和解释性的,并不能限制本发明。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1a是本发明实施例提供的一种数据传输方法流程示意图;
图1b是本发明实施例提供的另一种数据传输方法流程示意图;
图2a是本发明另一实施例提供的一种数据传输方法流程示意图;
图2b是本发明另一实施例提供的另一种数据传输方法流程示意图;
图3a是本发明实施例提供的在第一种应用场景下的下行数据传输方法流程示意图;
图3b是本发明实施例提供的在第一种应用场景下的上行数据传输方法流程示意图;
图4a是本发明实施例提供的在第二种应用场景下的下行数据传输方法流程示意图;
图4b是本发明实施例提供的在第二种应用场景下的上行数据传输方法流程示意图;
图5a是本发明实施例提供的在第三种应用场景下的下行数据传输方法流程示意图;
图5b是本发明实施例提供的在第三种应用场景下的上行数据传输方法流程示意图;
图6a是本发明实施例提供的在第四种应用场景下的下行数据传输方法流程示意图;
图6b是本发明实施例提供的在第四种应用场景下的上行数据传输方法流程示意图;
图7是是本发明实施例提供的一种第一通信设备结构示意图;
图8是是本发明实施例提供的一种第二通信设备结构示意图;
图9是是本发明另一实施例提供的一种第一通信设备结构示意图;
图10是是本发明另一实施例提供的一种第二通信设备结构示意图;
图11是是本发明实施例提供的一种无线通信系统结构示意图。
通过上述附图,已示出本发明明确的实施例,后文中将有更详细的描述。这些附图和文字描述并不是为了通过任何方式限制本发明构思的范围,而是通过参考特定实施例为本领域技术人员说明本发明的概念。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明实施方式作进一步地详细描述。
本发明实施例提供一种数据传输方法,参照图1a所示,包括以下步骤:
101、第一通信设备获取第一传输质量目标。
第一传输质量目标用于指示待传输数据的传输质量目标,此处,第一通信设备可以是基站(英文:Base Station,简称:BS),无线接入节点(英文:Access Point,简称:AP),终端设备等,第二通信设备可以是终端设备,移动台(英文:Mobile Station,简称:MS),基站等,其中,在长期演进(英文:Long Term Evolution,简称:LTE)系统中,基站可以是演进节点B(英文:Evolved Node Base Station,简称:eNB),终端设备可以是用户设备(英文:User Equipment,简称:UE)。
可选的,在步骤101或102之前,第一通信设备可以获取第一传输质量目标。具体可选的,第一通信设备可以通过以下两种方式获取第一传输质量目标:
第一种方式,第一通信设备根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标,待传输数据的时延要求越小,第一传输质量目标越高,待传输数据的可靠性要求越高,第一传输质量目标越高,例如普通业务的传输质量目标为BLER<0.1,低时延高可靠业务的传输质量目标为BLER<0.00001。在第一种方式中,第一通信设备还可以将第一传输质量目标发送至第二通信设备。
可选的,第一传输质量目标确定方法如下:如果待传输数据的时延小于或等于空口传输时延+固定值的和,则第一传输质量目标设定为待传输数据所要求的误块率。假设空口传输时延为0.5ms,固定值设定为0.5ms,待传输数据时延为1ms,待传输数据包的误块率为0.00001,则待传输数据包的第一传输质量目标为待传输数据包的误块率BLER<0.00001。如果待传输数据时延为10ms,待传输数据包的误块率为0.00001,则待传输数据包的第一传输质量目标为BLER<0.1,可以通过重传来进一步降低待传输数据包的误块率。
或者,第一传输质量目标的确定方法如下:系统至少包含两个传输质量目标,一个传输质量目标为BLER<0.1,一个传输质量目标为BLER<0.00001,如果待传输数据为普通业务,则传输质量目标为BLER<0.1,如果待传输数据为超低时延高可靠业务,则传输质量目标为BLER<0.00001。这里的传输质量目标,指的是空口一次传输的传输成功质量目标。另外一种可能的第一传输质量目标为,系统至少包含三个传输质量目标,一个传输质量目标为BLER<0.1,一个传输质量目标为BLER<0.00001,一个传输质量目标为BLER<0.0000001。若待传输业务的端到端传输时延大于5ms,则传输质量目标为BLER<0.1,若待传输业务的端到端传输时延小于1ms,则传输质量目标为BLER<0.0000001,若待传输业务的端到端传输时延介于1ms-5ms之间,则传输质量目标为BLER<0.00001。
在一种优选的应用场景中,第一通信设备可以将第一传输质量目标发送至第二通信设备;并且接收第二通信设备发送的第一信道质量信息。这样,第二通信设备因为接收了第一传输质量目标,可以基于第一传输质量目标对信道进行测量,从而直接获取第一信道质量信息,并发送给第一通信设备。
第二种方式,第一通信设备接收第二通信设备发送的第一传输质量目标。第二通信设备可以根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标,示例性的,待传输数据的时延要求越小,第一传输质量目标越高,待传输数据的可靠性要求越高,第一传输质量目标越高, 例如普通业务的传输质量目标为BLER<0.1,低时延高可靠业务的传输质量目标为BLER<0.00001。第二通信设备确定第一传输质量目标可以按照第一种方式中第一通信设备确定第一传输质量目标的方法,此处不再赘述。或者,第二通信设备无需确定第一传输质量目标(对应步骤102下第一种应用场景中,第二通信设备基于第二传输质量目标测量信道的方案)。所述第二传输质量目标是第一通信设备和第二通信设备预先存储的一个传输质量目标。可以是第一通信设备和第二通信设备约定的一个传输质量目标。如将BLER<0.1,作为第二传输质量目标。
需要说明的是,上述两种获取第一传输质量目标的方式中,传输数据的传输质量目标可以承载在物理层控制信令或高层信令中进行传输,高层信令可以是介质访问控制(英文:Media Access Control,简称:MAC)信令或无线资源控制(英文:Radio Resource Control,简称:RRC)信令等。
此外,还可以对第一传输质量目标设定生效时间,例如,可以通过物理层信令指示单次传输质量目标的生效时间,也可以通过高层信令指示多个单次传输质量目标的生效时间。
当物理层信令和高层信令同时指示第一传输质量目标时,可以预先定义优先级,例如,同时接收到高层信令和物理层信令,以物理层信令的指示为准。或者在高层信令所指示的带传输数据的传输质量目标生效时间内,收到物理层信令指示第一传输质量目标时,以物理层信令的指示为准。
102、第一通信设备获取第一信道质量信息。
第一信道质量信息用于指示第一通信设备和第二通信设备之间的信道质量,第一信道质量信息是基于第一传输质量目标得到的。可选的,第一传输质量目标可以包括目标误块率(英文:Block Error Rate,简称:BLER)和目标信噪比(英文:Signal Noise Ratio,简称:SNR)中的至少一项。第一信道质量信息可以包括信道质量标识(英文:Channel Quality Indicator,简称:CQI)、预编码调制矩阵标识(英文:Precoding Matrix Indicator,简称:PMI)和秩标 识(英文:Rank Indication,简称:RI)中的至少一项。
可选的,此处列举三种具体的应用场景对第一信道质量信息的获取进行说明:
在第一种场景中,第一通信设备接收第二通信设备发送的第一信道质量信息。
在这种场景中,第二通信设备获得第一传输质量目标,并根据第一传输质量目标对信道进行测量,并生成第一信道质量信息发送给第一通信设备。
在第二种应用场景中,第一通信设备接收第二通信设备发送的第二信道质量信息,根据第二信道质量信息获取第一信道质量信息,第二信道质量信息为第二通信设备基于第二传输质量目标测量的第一通信设备与第二通信设备之间的信道质量;当第一通信设备确定第二传输质量目标与第一传输质量目标相同时,将第二信道质量信息作为第一信道质量信息;当第一通信设备确定第二传输质量目标与第一传输质量目标不同时,根据第二信道质量信息获取第一信道质量信息。
此处,以表一为例对第一种应用场景进行说明。如表一所示,表一中示出了两个传输质量目标:BLER<0.1和BLER<0.00001,第一信道质量信息包括CQI,表一中用CQI索引(英文:Index)表示,以BLER<0.00001为第一传输质量目标,BLER<0.1为第二传输质量目标为例。例如,第一通信设备接收第二通信设备发送的第二信道质量信息中指示CQI为6,但第二传输质量目标和第一传输质量目标不同,第二信道质量信息是第二通信设备基于第二传输质量目标(BLER<0.1)测量信道得到的,因此,在第二传输质量目标(BLER<0.1)对应的那一列中找到CQI=6对应的SNR为3,然后在第一传输质量目标(BLER<0.00001)对应的那一列中找到SNR小于或等于3且与3最接近的SNR为2.05,最后在CQI index对应的那一列找出SNR(BLER<0.00001)为2.05对应的CQI为3,由此可以确定第一信道质量信息是CQI=3。
表一
CQIindex SNR(BLER<0.1) SNR(BLER<0.00001)
1 -7 -1.8
2 -5 0.2
3 -3.15 2.05
4 -1 4.2
5 1 6.2
6 3 8.2
7 5 10.2
8 6.9 12.1
9 8.9 14.1
10 10.85 16.05
11 12.6 17.8
12 14.45 19.65
13 16.15 21.35
14 18.15 23.35
15 20 25.2
在第三种应用场景中,第一通信设备测量第二通信设备发送的探测信号的信道质量,并生成第一信道质量信息。
步骤101和步骤102没有必然的先后顺序。
103a、第一通信设备根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式(英文:Modulation and Coding Scheme,简称:MCS),根据待传输数据的MCS对待传输数据进行编码调制。
第一通信设备可以根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定待传输数据的MCS。结合表一所示,表一包含了第一传输质量目标与第一信道质量信息的映射关系,如表二所示,表二示出了一种具体的第一信道质量信息与待传输数据的MCS的映射关系,MCS可以包括正交相移键控(英文:Quadrature Phase Shift Keyin,简称:QPSK)、16 正交幅度调制(英文:QuadratureAmplitude Modulation,简称:QAM)、64QAM。
表二
Figure PCTCN2016081864-appb-000001
需要说明的是,本发明中传输质量目标有多个,对于不同的传输质量目标可以使用不同的映射列表,例如,对于两个传输质量目标BLER<0.1和BLER<0.00001,当第一传输质量目标为BLER<0.1时可以使用表二,当第一传输质量目标为BLER<0.00001时可以使用表三,表三中MCS可以包括二进制相移键控(英文:Binary Phase Shift Keying,简称:BPSK)、QPSK、16QAM、64QAM、256QAM。
表三
Figure PCTCN2016081864-appb-000002
Figure PCTCN2016081864-appb-000003
104a、第一通信设备将待传输数据的MCS及编码调制后的待传输数据发送至第二通信设备。
图1a中步骤101-步骤104a是第一通信设备向第二通信设备传输数据的流程示意图,结合图1b所示,图1b是第二通信设备向第一通信设备传输数据的流程示意图,图1b所示的另一种数据传输方法包括以下步骤:
101、第一通信设备获取第一传输质量目标。
102、第一通信设备获取第一信道质量信息。
第一信道质量信息用于指示第一通信设备和第二通信设备之间的信道质量,第一信道质量信息是基于第一传输质量目标得到的。
103b、第一通信设备根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS。
104b、第一通信设备将待传输数据的MCS发送至第二通信设备。
105b、第一通信设备接收第二通信设备根据待传输数据的MCS编码调制后的待传输数据。
优选的,第一通信设备可以是基站,第二通信设备可以是UE,则步骤101-步骤104a是下行数据传输的场景,步骤101-105b是上行数据传输的场景。
现有技术中,通常采用自适应编码调制技术以在满足通信质量的基础上提升频谱利用率,所谓自适应编码调制是指,通信接收端测量信道的质量,并将信道质量反馈给发送端,发送端根据预先设定的传输质量目标(例如误包率为10%),选择在该传输质量目标下最合适的编码调制方式对发送信号进行编码调制后发送给接收端。或者通信接收端测量信道的质量,按照与发送端约定的传输质量目标,给出建议的编码调制方式反馈给发送端,发送端按照建议的编码调制方式进行发送。通常会约定一个传输质量目标,例如,空口一次传输的传输质量目标是误包率小于0.1,对于可靠性要求较高的业务,可以通过重传来进一步降低误码率,例如3GPP LTE系统,最多可以进行8次重传,但多次重传会增加传输时延,对于要求极低时延,同时要求可靠性较高的业务则无法满足要求。但如果提高误包率的要求,例如将误包率提高为BLER小于0.00001,相应的,需要较低的码率和较低阶的编码调制方式,这会降低系统传输效率,因此,现有技术仅设定一个空口一次传输成功率目标,无法同时满足低时延高可靠性要求和系统效率的要求。
而本发明可以灵活的确定适合于待传输数据的传输质量目标,再基于传输质量目标获取第一信道质量信息并确定满足待传输数据的传输质量目标的MCS,从而满足该数据传输的业务要求。例如,对于要求低时延高可靠性的数据传输,可以选择较高的传输质量目标,对应较低阶的调制方式和较低的码率,而对于时延要求不高的数据传输,可以选择较低的传输质量目标,对应较高阶的调制方式和较高的码率,满足不同业务对时延和可靠性的要求的同时,兼顾了系统效率。
本发明实施例提供的数据传输方法,第一通信设备获取第一传输质量目标和第一信道质量信息,根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS;将待传输数据的MCS发送至第二通信设备;根据待传输数据的MCS对待传输数据进行编码调制并向第二通信设备发送编码调制后的待传输数据,或者,接收第二通信设备根据待传输数据的MCS编码调制后的待传输数据。因为根据第一传输质量目标及第一信道质量信息确定了待传输数据的MCS,使得每次传输的数据都根据各自的传输质量目标及第一信道质量信息确定MCS,解决了现有技术中传输质量目标无法同时满足低时延高可靠性业务的需求和系统效率需求的问题。
结合上述图1a对应的实施例,本发明另一实施例提供的一种数据传输方法,对应上述图1a对应的实施例中所描述的数据传输方法的第二通信设备侧方法,参照图2a所示,包括以下步骤:
201、第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS。
待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息确定的。
可选的,步骤201之前,该方法还可以包括:
第二通信设备获取第一传输质量目标,基于第一传输质量目标生成第一信道质量信息;第二通信设备将第一信道质量信息发送至第一通信设备。
具体可选的,在一种可能的实现中,第二通信设备可以根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标,待传输数据的时延要求越小,第一传输质量目标越高,待传输数据的可靠性要求越高,第一传输质量目标越高。
进一步可选的,第二通信设备可以将第一传输质量目标发送至第一通信设备。
在另一种可能的实现中,第二通信设备可以接收第一通信设备发送的第一 传输质量目标。
可选的,步骤201之前,该方法还可以包括:
第二通信设备基于第二传输质量目标测量信道并生成第二信道质量信息;
第二通信设备将第二信道质量信息发送至第一通信设备。
另外,可选的,步骤201之前,第二通信设备可以根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标,将第一传输质量目标发送至第一通信设备,以便第一通信设备自行获取第一信道质量信息,待传输数据的时延要求越小,第一传输质量目标越高,待传输数据的可靠性要求越高,第一传输质量目标越高。
202a、第二通信设备接收第一通信设备发送的待传输数据,并根据待传输数据的MCS对待传输数据进行解调解码。
图2a中步骤201-步骤201a是第一通信设备向第二通信设备传输数据的流程示意图,结合图2b所示,图2b是第二通信设备向第一通信设备传输数据的流程示意图,图2b所示的另一种数据传输方法包括以下步骤:
201、第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS。
待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息确定的。
202b、第二通信设备根据待传输数据的MCS对待传输数据进行编码调制,并向第一通信设备发送编码调制后的待传输数据。
对于步骤202a或202b,可选的,待传输数据的MCS可以是第一通信设备根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定的。
可选的,传输质量目标可以包括目标误块率BLER和目标信噪比SNR中的至少一项,第一信道质量信息可以包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
本发明实施例提供的数据传输方法,第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS,接收第一通信设备发送的待传输数据,并根据待传输数据的MCS对待传输数据进行解调解码;或者,根据待传输数据的MCS对待传输数据进行编码调制并向第一通信设备发送编码调制后的待传输数据。因为根据第一传输质量目标及第一信道质量信息确定了待传输数据的MCS,使得每次传输的数据都根据各自的传输质量目标及第一信道质量信息确定MCS,解决了现有技术中传输质量目标无法同时满足低时延高可靠性业务的需求和系统效率需求的问题。
基于上述图1和图2对应的实施例,本发明实施例列举四种具体的应用场景对图1和图2对应的实施例中所描述数据传输方法进行说明,这四种应用场景中第一通信设备可以是基站,第二通信设备可以是UE,以基站和UE之间的数据传输为例进行说明,具体如下:
在第一种应用场景下,参照图3a和图3b所示,图3a示出了下行数据的传输流程,图3b示出了上行数据的传输流程,具体的,本发明实施例提供的数据传输方法包括以下步骤:
301、基站在多个传输质量目标中确定第一传输质量目标。
302、基站向UE发送第一传输质量目标。
303、UE基于基站发送的第一传输质量目标测量信道并生成第一信道质量信息。
304、UE向基站发送第一信道质量信息。
305、基站根据第一信道质量信息确定待传输数据的MCS。
在传输下行数据时,该方法还包括:
306a、基站向UE发送待传输数据的MCS及根据待传输数据的MCS编码调制后的待传输数据。
在传输上行数据时,该方法还包括:
306b、基站向UE发送待传输数据的MCS。
307b、UE根据基站发送的待传输数据的MCS对待传输数据进行编码调制后,向基站发送编码调制后的待传输数据。
在第二种应用场景下,参照图4a和图4b所示,图4a示出了下行数据的传输流程,图4b示出了上行数据的传输流程,具体的,本发明实施例提供的数据传输方法包括以下步骤:
401、UE在多个传输质量目标中确定第一传输质量目标。
402、UE向基站发送第一传输质量目标。
403、UE基于第一传输质量目标测量信道并生成第一信道质量信息。
404、UE向基站发送第一信道质量信息。
405、基站根据第一信道质量信息确定待传输数据的MCS。
在传输下行数据时,该方法还包括:
406a、基站向UE发送待传输数据的MCS及根据待传输数据的MCS编码调制后的待传输数据。
在传输上行数据时,该方法还包括:
406b、基站向UE发送待传输数据的MCS。
407b、UE根据基站发送的待传输数据的MCS对待传输数据进行编码调制后,向基站发送编码调制后的待传输数据。
在第三种应用场景下,参照图5a和图5b所示,图5a示出了下行数据的传输流程,图5b示出了上行数据的传输流程,本发明实施例提供的数据传输方法包括以下步骤:
501、UE根据第二传输质量目标测量信道并生成第二信道质量信息。
502、UE向基站发送第二信道质量信息。
503、基站判断第二传输质量目标与第一传输质量目标是否相同。
当第二传输质量目标与第一传输质量目标不相同时,执行步骤504,然后执行步骤505;当第二传输质量目标与第一传输质量目标相同时,直接执行步骤505。
504、基站根据第二信道质量信息获取第一信道质量信息。
因为第二信道质量信息是基于第二传输质量目标测量得到的,基站将第二信道质量信息转化为适应于第一传输质量目标的第一信道质量信息。
505、基站根据第一信道质量信息确定待传输数据的MCS。
在传输下行数据时,该方法还包括:
506a、基站向UE发送待传输数据的MCS及根据待传输数据的MCS编码调制后的待传输数据。
在传输上行数据时,该方法还包括:
506b、基站向UE发送待传输数据的MCS。
507b、UE根据基站发送的待传输数据的MCS对待传输数据进行编码调制后,向基站发送编码调制后的待传输数据。
在第四种应用场景下,参照图6a和图6b所示,图6a示出了下行数据的传输流程,图6b示出了上行数据的传输流程,本发明实施例提供的数据传输方法包括以下步骤:
601、基站在多个传输质量目标中确定第一传输质量目标。
602、UE向基站发送探测信号。
603、基站基于第一传输质量目标测量UE发送的探测信号的信道质量并生成第一信道质量信息。
604、基站根据第一信道质量信息确定待传输数据的MCS。
在传输下行数据时,该方法还包括:
605a、基站向UE发送待传输数据的MCS及根据待传输数据的MCS编码调制后的待传输数据。
在传输上行数据时,该方法还包括:
605b、基站向UE发送待传输数据的MCS。
606b、UE根据基站发送的待传输数据的MCS对待传输数据进行编码调制后,向基站发送编码调制后的待传输数据。
本发明实施例提供的数据传输方法,第一通信设备获取第一传输质量目标和第一信道质量信息,根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS;将待传输数据的MCS发送至第二通信设备;根据待传输数据的MCS对待传输数据进行编码调制并向第二通信设备发送编码调制后的待传输数据,或者,接收第二通信设备根据待传输数据的MCS编码调制后的待传输数据。因为根据第一传输质量目标及第一信道质量信息确定了待传输数据的MCS,使得每次传输的数据都根据各自的传输质量目标及第一信道质量信息确定MCS,解决了现有技术中传输质量目标无法同时满足低时延高可靠性业务的需求和系统效率需求的问题。
基于上述图1a、图3a、图4a、图5a或图6a对应的实施例中所描述的数据传输方法,本发明实施例提供一种第一通信设备,用于执行上述图1a、图3a、图4a、图5a或图6a对应的实施例中所描述的数据传输方法,参照图7所示,该第一通信设备70包括:处理单元701和发送单元702。
其中,处理单元701,用于获取第一传输质量目标和第一信道质量信息,第一信道质量信息用于指示第一通信设备和第二通信设备之间的信道质量,第一信道质量信息是基于第一传输质量目标得到的;
处理单元702,还用于根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS,根据待传输数据的MCS对待传输数据进行编码调制;
发送单元702,用于将待传输数据的MCS及处理单元701编码调制后的待传输数据发送至第二通信设备发送至第二通信设备。
结合图1b、图3b、图4b、图5b或图6b对应的实施例中所描述的数据传输方法,第一通信设备70还包括接收单元703,该第一通信设备70还可以用于执行上述图1b、图3b、图4b、图5b或图6b对应的实施例中所描述的数据传输方法。
其中,处理单元701,用于获取第一传输质量目标及第一信道质量信息, 第一信道质量信息用于指示第一通信设备和第二通信设备之间的信道质量,第一信道质量信息是基于第一传输质量目标得到的;
处理单元701,还用于根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS;
发送单元702,用于将待传输数据的MCS发送至第二通信设备;
接收单元703,用于接收第二通信设备根据待传输数据的MCS编码调制后的待传输数据。
可选的,处理单元701,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标,待传输数据的时延要求越小,第一传输质量目标越高,待传输数据的可靠性要求越高,第一传输质量目标越高。
进一步的,发送单元702,还用于将第一传输质量目标发送至第二通信设备;处理单元701,还用于通过接收单元703接收第二通信设备发送的第一信道质量信息。
可选的,接收单元703,还用于接收第二通信设备发送的第二信道质量信息,第二信道质量信息为第二通信设备基于第二传输质量目标测量的第一通信设备与第二通信设备之间的信道质量;
处理单元701,还用于根据第二信道质量信息获取第一信道质量信息。
可选的,处理单元701,还用于通过接收单元703接收第二通信设备发送的第一传输质量目标。
可选的,处理单元701,还用于测量第二通信设备发送的探测信号的信道质量,并生成第一信道质量信息。
可选的,处理单元702,还用于根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定待传输数据的MCS。
可选的,处理单元701,还用于通过接收单元703接收第二通信设备发送的第一信道质量信息。
可选的,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
可选的,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
本发明实施例提供的第一通信设备,获取第一传输质量目标和第一信道质量信息,根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS;将待传输数据的MCS发送至第二通信设备;根据待传输数据的MCS对待传输数据进行编码调制并向第二通信设备发送编码调制后的待传输数据,或者,接收第二通信设备根据待传输数据的MCS编码调制后的待传输数据。因为根据第一传输质量目标及第一信道质量信息确定了待传输数据的MCS,使得每次传输的数据都根据各自的传输质量目标及第一信道质量信息确定MCS,解决了现有技术中传输质量目标无法同时满足低时延高可靠性业务的需求和系统效率需求的问题。
基于上述图2a、图3a、图4a、图5a或图6a对应的实施例中所描述的数据传输方法,本发明实施例提供一种第二信设备,用于执行上述图2a、图3a、图4a、图5a或图6a对应的实施例中所描述的数据传输方法,参照图8所示,该第二通信设备80包括:处理单元801和接收单元802。
其中,接收单元802,用于接收第一通信设备发送的待传输数据的编码调制方式MCS,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息确定的;
接收单元802,还用于接收第一通信设备发送的待传输数据,处理单元801,用于根据待传输数据的MCS对待传输数据进行解调解码。
可选的,处理单元801,还用于获取第一传输质量目标;基于第一传输质量目标生成第一信道质量信息;
发送单元804,还用于将第一信道质量信息发送至第一通信设备。
结合图2b、图3b、图4b、图5b或图6b对应的实施例中所描述的数据传输方法,第二通信设备80还可以包括发送单元803,该第二通信设备还可以用于执行上述图2b、图3b、图4b、图5b或图6b对应的实施例中所描述的数据传输方法。
其中,接收单元802用于接收第一通信设备发送的待传输数据的编码调制方式MCS,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息确定的;
处理单元801,用于根据待传输数据的MCS对待传输数据进行编码调制;
发送单元803,用于向第一通信设备发送编码调制后的待传输数据。
可选的,处理单元801,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标,待传输数据的时延要求越小,第一传输质量目标越高,待传输数据的可靠性要求越高,第一传输质量目标越高。进一步的,发送单元803,还用于将第一传输质量目标发送至第一通信设备。
或者,可选的,处理单元801,还用于通过接收单元802接收第一通信设备发送的第一传输质量目标。
另外,可选的,处理单元801,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标,待传输数据的时延要求越小,第一传输质量目标越高,待传输数据的可靠性要求越高,第一传输质量目标越高;
发送单元803,还用于将第一传输质量目标发送至第一通信设备。
可选的,处理单元801,还用于基于第二传输质量目标测量信道并生成第二信道质量信息;
发送单元803,还用于将第二信道质量信息发送至第一通信设备。
可选的,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定的。
可选的,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
可选的,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
本发明实施例提供的第二通信设备,接收第一通信设备发送的待传输数据的编码调制方式MCS,接收第一通信设备发送的待传输数据,并根据待传输数据的MCS对待传输数据进行解调解码;或者,根据待传输数据的MCS对待传输数据进行编码调制并向第一通信设备发送编码调制后的待传输数据。因为根据第一传输质量目标及第一信道质量信息确定了待传输数据的MCS,使得每次传输的数据都根据各自的传输质量目标及第一信道质量信息确定MCS,解决了现有技术中传输质量目标无法同时满足低时延高可靠性业务的需求和系统效率需求的问题。
基于上述图1a、图3a、图4a、图5a或图6a对应的实施例中所描述的数据传输方法,本发明另一实施例提供一种第一通信设备,用于执行上述图1a、图3a、图4a、图5a或图6a对应的实施例中所描述的数据传输方法,参照图9所示,该第一通信设备90包括:处理器901、存储器902、发送器903和接收器904,该处理器901、存储器902、发送器903和接收器904相互连接。该存储器902用于存储数据和程序,处理器901用于调用存储器902存储的程序通过发送器903和接收器904执行图1a、图3a、图4a、图5a或图6a对应的实 施例中所描述的数据传输方法。
其中,处理器901,用于获取第一传输质量目标和第一信道质量信息,第一信道质量信息用于指示第一通信设备和第二通信设备之间的信道质量,第一信道质量信息是基于第一传输质量目标得到的;
处理器901,还用于根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS,根据待传输数据的MCS对待传输数据进行编码调制;
处理器901,还用于通过发送器903将待传输数据的MCS及编码调制后的待传输数据发送至第二通信设备。
结合图1b、图3b、图4b、图5b或图6b对应的实施例中所描述的数据传输方法,该第一通信设备90还可以用于执行上述图1b、图3b、图4b、图5b或图6b对应的实施例中所描述的数据传输方法。
其中,其中,处理器901,用于获取第一传输质量目标和第一信道质量信息,第一信道质量信息用于指示第一通信设备和第二通信设备之间的信道质量,第一信道质量信息是基于第一传输质量目标得到的;
处理器901,还用于根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS;
处理器,还用于通过发送器903将将待传输数据的MCS发送至第二通信设备;
处理器,还用于通过接收器904接收第二通信设备根据待传输数据的MCS编码调制后的待传输数据。
可选的,处理器901,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标,待传输数据的时延要求越小,第一传输质量目标越高,待传输数据的可靠性要求越高,第一传输质量目标越高。
进一步的,处理器901,还用于通过发送器903将第一传输质量目标发送至第二通信设备;处理器901,还用于通过接收器904接收第二通信设备发送 的第一信道质量信息。
可选的,处理器901,还用于通过接收器904接收第二通信设备发送的第二信道质量信息,第二信道质量信息为第二通信设备基于第二传输质量目标测量的第一通信设备与第二通信设备之间的信道质量;
处理器901,还用于根据第二信道质量信息获取第一信道质量信息。
可选的,处理器901,还用于通过接收器904接收第二通信设备发送的第一传输质量目标。
可选的,处理器901,还用于测量第二通信设备发送的探测信号的信道质量,并生成第一信道质量信息。
可选的,处理器901,还用于根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定待传输数据的MCS。
可选的,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
可选的,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
本发明实施例提供的第一通信设备,获取第一传输质量目标和第一信道质量信息,根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS;将待传输数据的MCS发送至第二通信设备;根据待传输数据的MCS对待传输数据进行编码调制并向第二通信设备发送编码调制后的待传输数据,或者,接收第二通信设备根据待传输数据的MCS编码调制后的待传输数据。因为根据第一传输质量目标及第一信道质量信息确定了待传输数据的MCS,使得每次传输的数据都根据各自的传输质量目标及第一信道质量信息确 定MCS,解决了现有技术中传输质量目标无法同时满足低时延高可靠性业务的需求和系统效率需求的问题。
基于上述图2a、图3a、图4a、图5a或图6a对应的实施例中所描述的数据传输方法,本发明实施例提供一种第二信设备,用于执行上述图2a、图3a、图4a、图5a或图6a对应的实施例中所描述的数据传输方法,参照图10所示,该第二通信设备100包括:处理器1001、存储器1002、发送器1003和接收器1004,该处理器1001、存储器1002、发送器1003和接收器1004相互连接。该存储器1002用于存储数据和程序,处理器1001用于调用存储器1002存储的程序通过发送器1003和接收器1004执行图2a、图3a、图4a、图5a或图6a对应的实施例中所描述的数据传输方法。
其中,处理器1001,用于通过接收器1004接收第一通信设备发送的待传输数据的编码调制方式MCS,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息确定的;
处理器1001,还用于通过接收器1004接收第一通信设备发送的待传输数据,并根据待传输数据的MCS对待传输数据进行解调解码。
结合图2b、图3b、图4b、图5b或图6b对应的实施例中所描述的数据传输方法,该第二通信设备100还可以用于执行上述图2b、图3b、图4b、图5b或图6b对应的实施例中所描述的数据传输方法。
其中,处理器1001,用于通过接收器1004接收第一通信设备发送的待传输数据的编码调制方式MCS,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息确定的;
处理器1001,还用于根据待传输数据的MCS对待传输数据进行编码调制,并通过发送器1003向第一通信设备发送编码调制后的待传输数据。
可选的,处理器1001,还用于获取第一传输质量目标,基于第一传输质量目标生成第一信道质量信息;
处理器1001,还用于通过发送器1003将第一信道质量信息发送至第一通 信设备。
可选的,处理器1001,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标,待传输数据的时延要求越小,第一传输质量目标越高,待传输数据的可靠性要求越高,第一传输质量目标越高。进一步的,处理器1001,还用于通过发送器1003将第一传输质量目标发送至第一通信设备。
或者,可选的,处理器1001,还用于通过接收器1004接收第一通信设备发送的第一传输质量目标。
可选的,处理器1001,还用于根据待传输数据的时延要求和可靠性要求在多个传输质量目标中确定第一传输质量目标,通过发送器1003将第一传输质量目标发送至第一通信设备,待传输数据的时延要求越小,第一传输质量目标越高,待传输数据的可靠性要求越高,第一传输质量目标越高。
可选的,处理器1001,还用于基于第二传输质量目标测量信道并生成第二信道质量信息;
处理器1001,还用于通过发送器1003将第二信道质量信息发送至第一通信设备。
可选的,待传输数据的MCS是第一通信设备根据第一传输质量目标及第一信道质量信息按照预设映射关系或预设映射列表确定的。
可选的,传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。例如目标BLER是0.1还是0.00001,目标信噪比SNR是3dB还是6dB,业务是低时延高可靠业务,还是普通业务;其他的跟传输目标相关的参数,例如HARQ次数,HARQ次数是零还是8次。如HARQ次数为零,对应低时延高可靠业务,HARQ次数为8对应普通业务。
可选的,第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
本发明实施例提供的第二通信设备,接收第一通信设备发送的待传输数据的编码调制方式MCS,接收第一通信设备发送的待传输数据,并根据待传输数据的MCS对待传输数据进行解调解码;或者,根据待传输数据的MCS对待传输数据进行编码调制并向第一通信设备发送编码调制后的待传输数据。因为根据第一传输质量目标及第一信道质量信息确定了待传输数据的MCS,使得每次传输的数据都根据各自的传输质量目标及第一信道质量信息确定MCS,解决了现有技术中传输质量目标无法同时满足低时延高可靠性业务的需求和系统效率需求的问题。
基于上述图1a-图10对应的实施例,本发明实施例提供一种无线通信系统,用于执行上述图1a-图6b对应的实施例中所描述的数据传输方法,参照图11所示,该无线通信系统110包括:第一通信设备1101和第二通信设备1102。
其中,所述第一通信设备为图7对应的实施例中所描述的第一通信设备,所述第二通信设备为图8对应的实施例中所描述的第一通信设备;
或者,所述第一通信设备为图9对应的实施例中所描述的第一通信设备,所述第二通信设备为图10对应的实施例中所描述的第一通信设备。
本发明实施例提供的无线通信系统,第一通信设备获取第一信道质量信息,根据第一传输质量目标及第一信道质量信息确定待传输数据的编码调制方式MCS;将待传输数据的MCS发送至第二通信设备;根据待传输数据的MCS对待传输数据进行编码调制并向第二通信设备发送编码调制后的待传输数据,或者,接收第二通信设备根据待传输数据的MCS编码调制后的待传输数据。因为根据第一传输质量目标及第一信道质量信息确定了待传输数据的MCS,使得每次传输的数据都根据各自的传输质量目标及第一信道质量信息确定MCS,解决了现有技术中传输质量目标无法同时满足低时延高可靠性业务的需求和系统效率需求的问题。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储 于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (46)

  1. 一种数据传输方法,其特征在于,包括:
    第一通信设备获取第一传输质量目标;
    所述第一通信设备获取第一信道质量信息,所述第一信道质量信息用于指示所述第一通信设备和第二通信设备之间的信道质量,所述第一信道质量信息是基于第一传输质量目标得到的;
    所述第一通信设备根据所述第一传输质量目标及所述第一信道质量信息确定待传输数据的编码调制方式MCS,根据所述待传输数据的MCS对所述待传输数据进行编码调制;
    所述第一通信设备将所述待传输数据的MCS及编码调制后的所述待传输数据发送至所述第二通信设备。
  2. 根据权利要求1所述的方法,其特征在于,所述第一通信设备获取第一传输质量目标,包括:
    所述第一通信设备根据所述待传输数据的时延要求和可靠性要求在多个传输质量目标中确定所述第一传输质量目标。
  3. 根据权利要求2所述的方法,其特征在于,所述方法还包括:
    所述第一通信设备将所述第一传输质量目标发送至所述第二通信设备;
    所述第一通信设备获取第一信道质量信息,包括:
    所述第一通信设备接收所述第二通信设备发送的所述第一信道质量信息。
  4. 根据权利要求1或2所述的方法,其特征在于,所述第一通信设备获取第一信道质量信息,包括:
    所述第一通信设备接收所述第二通信设备发送的第二信道质量信息,所述第二信道质量信息为所述第二通信设备基于第二传输质量目标测量的所述第一通信设备与所述第二通信设备之间的信道质量;
    所述根据所述第二信道质量信息获取所述第一信道质量信息。
  5. 根据权利要求1所述的方法,其特征在于,所述第一通信设备获取第一传输质量目标,包括:
    所述第一通信设备接收所述第二通信设备发送的所述第一传输质量目标。
  6. 根据权利要求1或2所述的方法,其特征在于,所述第一通信设备获取第一信道质量信息,包括:
    所述第一通信设备测量所述第二通信设备发送的探测信号的信道质量,并生成所述第一信道质量信息。
  7. 根据权利要求1或2所述的方法,其特征在于,所述第一通信设备获取第一信道质量信息,包括:
    所述第一通信设备接收所述第二通信设备发送的所述第一信道质量信息。
  8. 根据权利要求1-7任一项所述的方法,其特征在于,所述第一通信设备根据所述第一传输质量目标及所述第一信道质量信息确定所述待传输数据的MCS,包括:
    所述第一通信设备根据所述第一传输质量目标及所述第一信道质量信息按照预设映射关系或预设映射列表确定所述待传输数据的MCS。
  9. 根据权利要求1-8任一项所述的方法,其特征在于,
    所述传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。
  10. 根据权利要求1-9任一项所述的方法,其特征在于,
    所述第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
  11. 一种数据传输方法,其特征在于,包括:
    第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS,所述待传输数据的MCS是所述第一通信设备根据所述第一传输质量目标及所述第一信道质量信息确定的;
    所述第二通信设备接收所述第一通信设备发送的所述待传输数据,并根据所述待传输数据的MCS对所述待传输数据进行解调解码。
  12. 根据权利要求11所述的方法,其特征在于,所述第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS之前,所述方法还包括:
    所述第二通信设备获取所述第一传输质量目标,基于所述第一传输质量目标生成所述第一信道质量信息;
    所述第二通信设备将所述第一信道质量信息发送至所述第一通信设备。
  13. 根据权利要求12所述的方法,其特征在于,所述第二通信设备获取所述第一传输质量目标,包括:
    所述第二通信设备根据所述待传输数据的时延要求和可靠性要求在多个传输质量目标中确定所述第一传输质量目标。
  14. 根据权利要求13所述的方法,其特征在于,所述方法还包括:
    所述第二通信设备将所述第一传输质量目标发送至所述第一通信设备。
  15. 根据权利要求12所述的方法,其特征在于,所述第二通信设备获取所述第一传输质量目标,包括:
    所述第二通信设备接收所述第一通信设备发送的所述第一传输质量目标。
  16. 根据权利要求11所述的方法,其特征在于,所述第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS之前,所述方法还包括:
    所述第二通信设备根据所述待传输数据的时延要求和可靠性要求在多个传输质量目标中确定所述第一传输质量目标;
    所述第二通信设备将所述第一传输质量目标发送至所述第一通信设备。
  17. 根据权利要求11所述的方法,其特征在于,所述第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS之前,所述方法还包括:
    所述第二通信设备基于第二传输质量目标测量信道并生成第二信道质量信息;
    所述第二通信设备将所述第二信道质量信息发送至所述第一通信设备。
  18. 根据权利要求11-17任一项所述的方法,其特征在于,
    所述待传输数据的MCS是所述第一通信设备根据所述第一传输质量目标及所述第一信道质量信息按照预设映射关系或预设映射列表确定的。
  19. 根据权利要求11-18任一项所述的方法,其特征在于,
    所述传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。
  20. 根据权利要求11-19任一项所述的方法,其特征在于,
    所述第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
  21. 一种数据传输方法,其特征在于,包括:
    第一通信设备获取第一传输质量目标;
    所述第一通信设备获取第一信道质量信息,所述第一信道质量信息用于指示所述第一通信设备和第二通信设备之间的信道质量,所述第一信道质量信息是基于第一传输质量目标得到的;
    所述第一通信设备根据所述第一传输质量目标及所述第一信道质量信息确定待传输数据的编码调制方式MCS;
    所述第一通信设备将所述待传输数据的MCS发送至所述第二通信设备;
    所述第一通信设备接收所述第二通信设备根据所述待传输数据的MCS编码调制后的所述待传输数据。
  22. 一种数据传输方法,其特征在于,包括:
    第二通信设备接收第一通信设备发送的待传输数据的编码调制方式MCS,所述待传输数据的MCS是所述第一通信设备根据所述第一传输质量目标及所述第一信道质量信息确定的;
    所述第二通信设备根据所述待传输数据的MCS对所述待传输数据进行编码调制,并向所述第一通信设备发送编码调制后的所述待传输数据。
  23. 一种第一通信设备,其特征在于,所述第一通信设备包括:处理单元、 和发送单元;
    所述处理单元,用于获取第一传输质量目标和第一信道质量信息,所述第一信道质量信息用于指示所述第一通信设备和第二通信设备之间的信道质量,所述第一信道质量信息是基于所述第一传输质量目标得到的;
    所述处理单元,还用于根据所述第一传输质量目标及所述第一信道质量信息确定所述待传输数据的编码调制方式MCS,根据所述待传输数据的MCS对所述待传输数据进行编码调制;
    所述发送单元,用于将所述待传输数据的MCS及所述处理单元编码调制后的所述待传输数据发送至所述第二通信设备。
  24. 根据权利要求23所述的设备,其特征在于,
    所述处理单元,还用于根据所述待传输数据的时延要求和可靠性要求在多个传输质量目标中确定所述第一传输质量目标。
  25. 根据权利要求24所述的设备,其特征在于,所述第一通信设备还包括接收单元,
    所述发送单元,还用于将所述第一传输质量目标发送至所述第二通信设备;
    所述处理单元,还用于通过所述接收单元接收所述第二通信设备发送的所述第一信道质量信息。
  26. 根据权利要求23或24所述的设备,其特征在于,
    所述第一通信设备还包括接收单元,用于接收所述第二通信设备发送的第二信道质量信息,所述第二信道质量信息为所述第二通信设备基于第二传输质量目标测量的所述第一通信设备与所述第二通信设备之间的信道质量;
    所述处理单元,还用于根据所述第二信道质量信息获取所述第一信道质量信息。
  27. 根据权利要求23所述的设备,其特征在于,所述第一通信设备还包括接收单元,
    所述处理单元,还用于通过所述接收单元接收所述第二通信设备发送的所 述第一传输质量目标。
  28. 根据权利要求23或24所述的设备,其特征在于,
    所述处理单元,还用于测量所述第二通信设备发送的探测信号的信道质量,并生成所述第一信道质量信息。
  29. 根据权利要求23或24所述的设备,其特征在于,所述第一通信设备还包括接收单元,
    所述处理单元,还用于通过所述接收单元接收所述第二通信设备发送的所述第一信道质量信息。
  30. 根据权利要求23-29任一项所述的设备,其特征在于,
    所述处理单元,还用于根据所述第一传输质量目标及所述第一信道质量信息按照预设映射关系或预设映射列表确定所述待传输数据的MCS。
  31. 根据权利要求23-30任一项所述的设备,其特征在于,
    所述传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。
  32. 根据权利要求23-31任一项所述的设备,其特征在于,
    所述第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
  33. 一种第二通信设备,其特征在于,所述第二通信设备包括:处理单元和接收单元;
    所述接收单元,用于接收第一通信设备发送的待传输数据的编码调制方式MCS,所述待传输数据的MCS是所述第一通信设备根据所述第一传输质量目标及所述第一信道质量信息确定的;
    所述接收单元,还用于接收所述第一通信设备发送的所述待传输数据,所述处理单元,用于根据所述待传输数据的MCS对所述待传输数据进行解调解码。
  34. 根据权利要求33所述的设备,其特征在于,
    所述处理单元,还用于获取所述第一传输质量目标;基于所述第一传输质量目标生成所述第一信道质量信息;
    所述发送单元,还用于将所述第一信道质量信息发送至所述第一通信设备。
  35. 根据权利要求34所述的设备,其特征在于,
    所述处理单元,还用于根据所述待传输数据的时延要求和可靠性要求在多个传输质量目标中确定所述第一传输质量目标。
  36. 根据权利要求35所述的设备,其特征在于,
    所述发送单元,还用于将所述第一传输质量目标发送至所述第一通信设备。
  37. 根据权利要求34所述的设备,其特征在于,
    所述处理单元,还用于通过所述接收单元接收所述第一通信设备发送的所述第一传输质量目标。
  38. 根据权利要求33所述的设备,其特征在于,
    所述处理单元,还用于根据所述待传输数据的时延要求和可靠性要求在多个传输质量目标中确定所述第一传输质量目标;
    所述发送单元,还用于将所述第一传输质量目标发送至所述第一通信设备。
  39. 根据权利要求33所述的设备,其特征在于,
    所述处理单元,还用于基于第二传输质量目标测量信道并生成第二信道质量信息;
    所述发送单元,还用于将所述第二信道质量信息发送至所述第一通信设备。
  40. 根据权利要求33-39任一项所述的设备,其特征在于,
    所述待传输数据的MCS是所述第一通信设备根据所述第一传输质量目标及所述第一信道质量信息按照预设映射关系或预设映射列表确定的。
  41. 根据权利要求33-40任一项所述的设备,其特征在于,
    所述传输质量目标包括目标误块率BLER和目标信噪比SNR和业务类型和跟传输目标相关的参数中的至少一项。
  42. 根据权利要求33-41任一项所述的设备,其特征在于,
    所述第一信道质量信息包括信道质量标识CQI、预编码调制矩阵标识PMI和秩标识RI中的至少一项。
  43. 一种第一通信设备,其特征在于,包括:处理单元、发送单元和接收单元;
    所述处理单元,用于获取第一传输质量目标及第一信道质量信息,所述第一信道质量信息用于指示所述第一通信设备和第二通信设备之间的信道质量,所述第一信道质量信息是基于第一传输质量目标得到的;
    所述处理单元,还用于根据所述第一传输质量目标及所述第一信道质量信息确定待传输数据的编码调制方式MCS;
    所述发送单元,用于将所述待传输数据的MCS发送至所述第二通信设备;
    所述接收单元,用于接收所述第二通信设备根据所述待传输数据的MCS编码调制后的所述待传输数据。
  44. 一种第二通信设备,其特征在于,包括:处理单元、发送单元和接收单元;
    所述接收单元用于接收第一通信设备发送的待传输数据的编码调制方式MCS,所述待传输数据的MCS是所述第一通信设备根据所述第一传输质量目标及所述第一信道质量信息确定的;
    所述处理单元,用于根据所述待传输数据的MCS对所述待传输数据进行编码调制;
    所述发送单元,用于向所述第一通信设备发送编码调制后的所述待传输数据。
  45. 一种无线通信系统,其特征在于,包括:第一通信设备和第二通信设备;
    所述第一通信设备为权利要求23-32任一项所述的第一通信设备,所述第二通信设备为权利要求33-42任一项所述的第二通信设备。
  46. 一种无线通信系统,其特征在于,包括:第一通信设备和第二通信设 备;
    所述第一通信设备为权利要求43所述的第一通信设备,所述第二通信设备为权利要求44所述的第二通信设备。
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