WO2019157649A1 - Procédé et dispositif de communication - Google Patents

Procédé et dispositif de communication Download PDF

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Publication number
WO2019157649A1
WO2019157649A1 PCT/CN2018/076693 CN2018076693W WO2019157649A1 WO 2019157649 A1 WO2019157649 A1 WO 2019157649A1 CN 2018076693 W CN2018076693 W CN 2018076693W WO 2019157649 A1 WO2019157649 A1 WO 2019157649A1
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Prior art keywords
modulation
information
coding mode
repetitions
transport block
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PCT/CN2018/076693
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English (en)
Chinese (zh)
Inventor
高鲁涛
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2018/076693 priority Critical patent/WO2019157649A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received

Definitions

  • the present application relates to the field of communications and, more particularly, to a communication method and apparatus.
  • the Modulation Coding Scheme (MCS) of the existing transport block is the highest modulation coding mode in which the block error rate of the transport block received by the receiving end does not exceed 10 -1 .
  • MCS Modulation Coding Scheme
  • the URLLC service requires a Block-Error Rate (BLER). ) no more than 10 -4 or 10 -5 .
  • a table for adding a new modulation and coding mode is generally added on the basis of the existing modulation and coding mode table, and the table of the new modulation and coding mode includes lower
  • the coding rate satisfies the reliability requirements of the URLLC service through a lower coding rate.
  • the present application provides a communication method and device, which can satisfy the first reliability requirement by using the first modulation and coding mode information and the number of repetitions of the transmission block, since the first index can not only indicate the first modulation
  • the coding mode information may also indicate the number of repetitions of the transport block, so that no additional signaling is required to carry the number of repetitions of the transport block, which saves signaling overhead.
  • a communication method comprising: determining a first index, the first index is used to indicate first modulation and coding mode information and a repetition number of a transport block; and transmitting the first index to a wireless device Wherein the first modulation and coding mode information and the number of repetitions of the transport block correspond to a first reliability requirement.
  • the first reliability requirement is met by the first modulation and coding mode information and the number of repetitions of the transport block, and the first index may not only indicate the first modulation and coding mode information, but may also indicate the repetition of the transport block. The number of times, so no additional signaling is required to carry the number of repetitions of the transport block, which saves signaling overhead.
  • the first modulation and coding mode information is modulation and coding information used by the transmission block, and the first modulation and coding mode information is modulation of a first transmission block.
  • Encoding information, the first transport block being a set of the transport blocks that repeat the number of repetitions.
  • the first index, the first modulation and coding mode information, and the number of repetitions of the transport block are included in a group of information in the first table; Or the first index and the first modulation and coding mode information are included in a group of information in the second table, and the first index and the number of repetitions of the transmission block are included in a group of information in the third table. in.
  • the first table includes at least two sets of information, each of the at least two sets of information including an index, modulation and coding mode information, and a repetition of a transport block Number of times, the number of repetitions of the transport block included in each set of information is one,
  • the number of repetitions of the transport block included in the at least two sets of information is different
  • the number of repetitions of the transmission block corresponding to the second modulation coding mode order is greater than or And the number of repetitions of the transport block corresponding to the order of the third modulation and coding mode.
  • the lower the modulation coding mode index is, the more the repetition order of the transmission block is allowed when the modulation order is low, and the repetition times corresponding to the same modulation coding mode are unequal intervals, in particular, the lower order modulation
  • the coding mode corresponds to more repetitions, and more types of repetitions for lower-order MCS can also be used to add lower-order MCS, thereby determining a more suitable MCS for the URLLC service to satisfy the highly reliable and low-latency URLLC service. Reliability requirements.
  • a group of information having a smaller order of modulation coding mode includes a transmission block having a repetition number greater than Or the number of repetitions of the transport block included in another set of information having a larger order of modulation coding mode.
  • the second table includes at least two sets of information, each of the at least two sets of information including an index, and modulation coding mode information,
  • the third table includes at least two sets of information, each of the at least two sets of information includes an index, and a repetition number of the transport block, and the number of repetitions of the transport block included in each set of information is One;
  • the at least two sets of information include different transmission block repetition times
  • the second modulation coding mode order in the second table is smaller than the third modulation coding mode order in the second table
  • the second modulation coding mode order corresponds to the third table
  • the number of repetitions of the transport block is greater than or equal to the number of repetitions of the transport block in the third table corresponding to the order of the third modulation coding mode.
  • the number of repetitions of the transport block corresponding to a group of information having a smaller order of the modulation coding mode is greater than or The number of repetitions of the transport block corresponding to another set of information having a larger order of modulation coding mode.
  • the first table belongs to a first set of information
  • the first information set includes at least two sets of information, each of the at least two sets of information includes modulation and coding mode information and a repetition number of the transport block, and the number of repetitions of the transport block in each set of information
  • the quantity is at least one;
  • the maximum number of repetitions of the transport block included in the at least two sets of information is different
  • the first modulation coding mode information in the first information set includes a first modulation coding mode order is smaller than the second modulation coding mode information included in the second information coding mode information in the first information set,
  • the maximum number of repetitions of the transport block corresponding to the first modulation and coding mode information is greater than or equal to the maximum number of repetitions of the transport block corresponding to the second modulation and coding mode information,
  • the first table includes at least one index, and modulation and coding mode information corresponding to the at least one index and a repetition number of the transmission block.
  • the modulation order by the higher the modulation order, the maximum number of repetitions of the allowed transport blocks is larger, and thus some services having higher requirements on the block error rate of the transport block can be satisfied.
  • a coding mode with a lower modulation index and a lower order modulation mode is generally selected, and in the prior art, a modulation coding mode index is used. The lower the number of repetitions of the transport block, the less the number of repetitions specified in the corresponding system in the case of the same size of each transport block.
  • the lower the modulation coding mode index is, the more the repetition order of the transmission block is allowed when the modulation order is low, and the repetition times corresponding to the same modulation coding mode are unequal intervals, in particular, the lower order modulation
  • the coding mode corresponds to more repetitions, and more types of repetitions for lower-order MCS can also be used to add lower-order MCS, thereby determining a more suitable MCS for the URLLC service to satisfy the highly reliable and low-latency URLLC service. Reliability requirements.
  • the maximum number of repetitions of the transport block corresponding to a group of information with a smaller order of the modulation coding mode in the two sets of information included in the first information set The maximum number of repetitions of the transport block corresponding to another group of information that is greater than or equal to the modulation coding mode.
  • the number of repetitions of the transport block corresponding to the second modulation and coding mode information is a subset of the number of repetitions of the transport block corresponding to the first modulation and coding mode information.
  • a repetition of a transmission block included in a group of information having a larger order of modulation coding mode A subset of the number of repetitions of a transport block included in another set of information having a smaller order of modulation.
  • the first modulation and coding mode information when the first modulation and coding mode information includes a modulation order that is smaller than a modulation order included in the second modulation and coding mode information, the first The maximum number of repetitions of the transport block corresponding to the modulation and coding scheme information is greater than the maximum number of repetitions of the transport block corresponding to the second modulation and coding scheme information.
  • the first modulation coding mode order is less than the second modulation coding mode order includes:
  • the first modulation order is less than the second modulation order
  • the first modulation order is the same as the second modulation order, and the first code rate is less than the second code rate; or
  • the index corresponding to the order of the first modulation and coding mode is smaller than the index corresponding to the order of the second modulation and coding mode
  • the first modulation and coding mode information includes the first modulation order and the first code rate
  • the second modulation and coding mode information includes the second modulation order and the second code rate
  • the first table belongs to a first set of information
  • the first set of information includes at least two sets of information, each of the at least two sets of information And including the modulation coding mode information and the number of repetitions of the transmission block, the number of repetitions of the transmission block is at least one repetition number, and the number of repetitions of the transmission block included in the at least two sets of information is not completely the same
  • the first table includes at least An index, and modulation coding mode information corresponding to the at least one index and a repetition number of the transmission block.
  • the network device can determine the first index based on the channel state information and the first reliability requirement.
  • the network device before the network device can determine the first index according to the channel state information and the first reliability requirement, the network device receives channel state information sent by the wireless device. .
  • the first modulation and coding mode information further includes at least one or more of the following parameters:
  • Modulation order Modulation order, coding rate, and size of the transport block.
  • a second aspect provides a communication method, including: receiving a first index sent by a network device, where the first index is used to indicate first modulation and coding mode information and a repetition number of a transport block; and according to the first index indication
  • the first modulation and coding mode information demodulates the transport block, wherein the first modulation and coding mode information and the number of repetitions of the transport block correspond to a first reliability requirement.
  • the first index, the first modulation and coding mode information, and the number of repetitions of the transport block are included in a group of information in the first table;
  • the first index and the first modulation and coding mode information are included in a group of information in the second table, and the first index and the number of transmission block repetitions are included in a group of information in the third table. .
  • the first table includes at least two sets of information, each of the at least two sets of information including an index, modulation and coding mode information, and a repetition of a transport block Number of times, the number of repetitions of the transport block included in each set of information is one; the number of repetitions of the transport block included in the at least two sets of information is different; when the second modulation code in the first table When the mode order is smaller than the third modulation coding mode order in the first table, the repetition number of the transport block corresponding to the second modulation coding mode order is greater than or equal to the third modulation coding mode order The number of repetitions of the transport block.
  • a group of information having a smaller modulation coding mode has a transmission block having a repetition number greater than Or the number of repetitions of the transport block included in another set of information having a larger order of modulation coding mode.
  • the second table includes at least two sets of information, each of the at least two sets of information includes an index, and modulation and coding mode information
  • the The third table includes at least two sets of information, each of the at least two sets of information includes an index, and a repetition number of the transport block, and the number of repetitions of the transport block included in each set of information is one;
  • the at least two sets of information include different transmission block repetition times; when the second modulation coding mode order in the second table is smaller than the third modulation coding mode order in the second table, the second The number of repetitions of the transport block in the third table corresponding to the order of the modulation coding mode is greater than or equal to the number of repetitions of the transport block in the third table corresponding to the order of the third modulation coding mode.
  • the number of repetitions of the transport block corresponding to a group of information having a smaller order of modulation coding mode is greater than or The number of repetitions of the transport block corresponding to another set of information having a larger order of modulation coding mode.
  • the first table belongs to the first information set
  • the first information set includes at least two sets of information, each of the at least two sets of information includes modulation and coding mode information and a repetition number of the transport block, and the number of repetitions of the transport block in each set of information
  • the quantity is at least one; the maximum number of repetitions of the transmission block included in the at least two sets of information is different; the first modulation coding mode information in the first information set includes a first modulation coding mode order that is smaller than the first
  • the second modulation coding mode information in the information set includes the second modulation coding mode order
  • the maximum repetition number of the transmission block corresponding to the first modulation coding mode information is greater than or equal to the second modulation coding mode information.
  • a maximum number of repetitions of the transport block, the first table including at least one index, and modulation coding mode information corresponding to the at least one index and a repetition number of the transmission block.
  • the maximum number of repetitions of the transport block corresponding to a group of information with a smaller order of the modulation coding mode in the two sets of information included in the first information set The maximum number of repetitions of the transport block corresponding to another group of information that is greater than or equal to the modulation coding mode.
  • the second modulation coding mode information includes a repetition number of the transmission block that is a subset of the repetition number of the transmission block included in the first modulation and coding mode information.
  • the first modulation and coding mode information when the first modulation and coding mode information includes a modulation order that is smaller than a modulation order included in the second modulation and coding mode information, the first The modulation coding mode information includes a maximum number of repetitions of the transport block that is greater than a maximum number of repetitions of the transport block included in the second modulation and coding scheme information.
  • the first modulation coding mode order is smaller than the second modulation coding mode order, the first modulation order is smaller than the second modulation order Or the first modulation order and the second modulation order are the same, and the first code rate is smaller than the second code rate; or the index corresponding to the first modulation coding mode order is smaller than the second modulation code The index corresponding to the mode order;
  • the first modulation and coding mode information includes the first modulation order and the first code rate
  • the second modulation and coding mode information includes the second modulation order and the second code rate
  • the first table belongs to a first set of information
  • the first set of information includes at least two sets of information, each of the at least two sets of information And including the modulation coding mode information and the number of repetitions of the transmission block, the number of repetitions of the transmission block is at least one repetition number, and the number of repetitions of the transmission block included in the at least two sets of information is not completely the same
  • the first table includes at least An index, and modulation coding mode information corresponding to the at least one index and a repetition number of the transmission block.
  • a network device including:
  • a determining module configured to determine a first index, where the first index is used to indicate the first modulation and coding mode information and the number of repetitions of the transport block;
  • a sending module configured to send the first index to a wireless device
  • the first modulation and coding mode information and the number of repetitions of the transport block correspond to a first reliability requirement.
  • the first index, the first modulation and coding mode information, and the number of repetitions of the transport block are included in a group of information in the first table;
  • the first index and the first modulation and coding mode information are included in a group of information in the second table, and the first index and the number of transmission block repetitions are included in a group of information in the third table. .
  • the first table includes at least two sets of information, each of the at least two sets of information including an index, modulation and coding mode information, and a repetition of a transport block Number of times, the number of repetitions of the transport block included in each set of information is one; the number of repetitions of the transport block included in the at least two sets of information is different; when the second modulation code in the first table When the mode order is smaller than the third modulation coding mode order in the first table, the repetition number of the transport block corresponding to the second modulation coding mode order is greater than or equal to the third modulation coding mode order The number of repetitions of the transport block.
  • the second table includes at least two sets of information, each of the at least two sets of information including an index, and modulation and coding mode information
  • the The third table includes at least two sets of information, each of the at least two sets of information includes an index, and a repetition number of the transport block, and the number of repetitions of the transport block included in each set of information is one;
  • the at least two sets of information include different transmission block repetition times; when the second modulation coding mode order in the second table is smaller than the third modulation coding mode order in the second table, the second The number of repetitions of the transport block in the third table corresponding to the order of the modulation coding mode is greater than or equal to the number of repetitions of the transport block in the third table corresponding to the order of the third modulation coding mode.
  • the first table belongs to a first set of information
  • the first information set includes at least two sets of information, each of the at least two sets of information includes modulation and coding mode information and a repetition number of the transport block, and the number of repetitions of the transport block in each set of information
  • the quantity is at least one; the maximum number of repetitions of the transmission block included in the at least two sets of information is different; the first modulation coding mode information in the first information set includes a first modulation coding mode order that is smaller than the first
  • the second modulation coding mode information in the information set includes the second modulation coding mode order
  • the maximum repetition number of the transmission block corresponding to the first modulation coding mode information is greater than or equal to the second modulation coding mode information.
  • a maximum number of repetitions of the transport block, the first table including at least one index, and modulation coding mode information corresponding to the at least one index and a repetition number of the transmission block.
  • the number of repetitions of the transport block corresponding to the second modulation and coding mode information is a subset of the number of repetitions of the transport block corresponding to the first modulation and coding mode information.
  • the first modulation and coding mode information when the first modulation and coding mode information includes a modulation order that is smaller than a modulation order included in the second modulation and coding mode information, the first The maximum number of repetitions of the transport block corresponding to the modulation and coding scheme information is greater than the maximum number of repetitions of the transport block corresponding to the second modulation and coding scheme information.
  • the first modulation coding mode order is less than the second modulation coding mode order includes:
  • the first modulation order is less than the second modulation order
  • the first modulation order is the same as the second modulation order, and the first code rate is less than the second code rate; or
  • the index corresponding to the order of the first modulation and coding mode is smaller than the index corresponding to the order of the second modulation and coding mode
  • the first modulation and coding mode information includes the first modulation order and the first code rate
  • the second modulation and coding mode information includes the second modulation order and the second code rate
  • the first table belongs to a first set of information
  • the first set of information includes at least two sets of information, each of the at least two sets of information And including the modulation coding mode information and the number of repetitions of the transmission block, the number of repetitions of the transmission block is at least one repetition number, and the number of repetitions of the transmission block included in the at least two sets of information is not completely the same
  • the first table includes at least An index, and modulation coding mode information corresponding to the at least one index and a repetition number of the transmission block.
  • a wireless device including:
  • a receiving module configured to receive a first index sent by the network device, where the first index is used to indicate the first modulation and coding mode information and the number of repetitions of the transport block;
  • a processing module configured to demodulate the transport block according to the first modulation and coding mode information indicated by the first index
  • the first modulation and coding mode information and the number of repetitions of the transport block correspond to a first reliability requirement.
  • the wireless device in the fourth aspect may be the terminal device itself, or an element or a chip in the terminal device, or may be a device or component that is externally disposed outside the terminal device.
  • the first index, the first modulation and coding mode information, and the number of repetitions of the transport block are included in a group of information in the first table; Or the first index and the first modulation and coding mode information are included in a group of information in the second table, and the first index and the number of repetitions of the transmission block are included in a group of information in the third table. in.
  • the first table includes at least two sets of information, each of the at least two sets of information including an index, modulation and coding mode information, and a repetition of a transport block Number of times, the number of repetitions of the transport block included in each set of information is one; the number of repetitions of the transport block included in the at least two sets of information is different; when the second modulation code in the first table When the mode order is smaller than the third modulation coding mode order in the first table, the repetition number of the transport block corresponding to the second modulation coding mode order is greater than or equal to the third modulation coding mode order The number of repetitions of the transport block.
  • the second table includes at least two sets of information, each of the at least two sets of information includes an index, and modulation and coding mode information
  • the third table includes at least two sets of information, each of the at least two sets of information includes an index, and a repetition number of the transport block, and the number of repetitions of the transport block included in each set of information is one;
  • the at least two sets of information include different transmission block repetition times; when the second modulation coding mode order in the second table is smaller than the third modulation coding mode order in the second table, the second The number of repetitions of the transport block in the third table corresponding to the order of the modulation coding mode is greater than or equal to the number of repetitions of the transport block in the third table corresponding to the order of the third modulation coding mode.
  • the first table belongs to a first information set
  • the first information set includes at least two sets of information, each of the at least two sets of information includes modulation and coding mode information and a repetition number of the transport block, and the number of repetitions of the transport block in each set of information
  • the quantity is at least one; the maximum number of repetitions of the transmission block included in the at least two sets of information is different; the first modulation coding mode information in the first information set includes a first modulation coding mode order that is smaller than the first
  • the second modulation coding mode information in the information set includes the second modulation coding mode order
  • the maximum repetition number of the transmission block corresponding to the first modulation coding mode information is greater than or equal to the second modulation coding mode information.
  • a maximum number of repetitions of the transport block, the first table including at least one index, and modulation coding mode information corresponding to the at least one index and a repetition number of the transmission block.
  • the second modulation coding mode information includes a repetition number of the transmission block that is a subset of the repetition times of the transmission block included in the first modulation and coding mode information.
  • the first modulation and coding mode information when the first modulation and coding mode information includes a modulation order that is smaller than a modulation order included in the second modulation and coding mode information, the first The modulation coding mode information includes a maximum number of repetitions of the transport block that is greater than a maximum number of repetitions of the transport block included in the second modulation and coding scheme information.
  • the first modulation coding mode order is less than the second modulation coding mode order includes:
  • the first modulation order is less than the second modulation order
  • the first modulation order is the same as the second modulation order, and the first code rate is less than the second code rate; or
  • the index corresponding to the order of the first modulation and coding mode is smaller than the index corresponding to the order of the second modulation and coding mode
  • the first modulation and coding mode information includes the first modulation order and the first code rate
  • the second modulation and coding mode information includes the second modulation order and the second code rate
  • the first table belongs to a first information set, the first information set includes at least two sets of information, each of the at least two sets of information And including the modulation coding mode information and the number of repetitions of the transmission block, the number of repetitions of the transmission block is at least one repetition number, and the number of repetitions of the transmission block included in the at least two sets of information is not completely the same, and the first table includes at least An index, and modulation coding mode information corresponding to the at least one index and a repetition number of the transmission block.
  • a network device comprising: at least one processor, a memory and a transceiver, the memory for storing instructions, the transceiver for communicating with the network device and other devices, the stored instructions Executing directly or indirectly by the at least one processor, such that the network device can perform the method of the first aspect or any alternative implementation of the first aspect.
  • a wireless device comprising: at least one processor for storing instructions, said transceiver for communicating with said other wireless device, said stored instructions Executing directly or indirectly by the at least one processor, such that the wireless device can perform the method of any of the alternative aspects of the second aspect or the second aspect.
  • a chip system comprising: at least one processor, the at least one processor for executing stored instructions to enable a network device to perform the first aspect or any optional implementation of the first aspect The method in the way.
  • a chip system comprising: at least one processor, the at least one processor for executing stored instructions to enable a wireless device to perform any of the optional implementations of the second aspect or the second aspect The method in the way.
  • a computer program product comprising instructions that, when executed, cause a network device to perform the first aspect or any of the alternative implementations of the first aspect method.
  • a computer program product comprising instructions that, when executed, cause a wireless device to perform the second aspect or any of the alternative implementations of the second aspect method.
  • a computer storage medium in an eleventh aspect, storing program instructions, when the instructions are executed, the network device can perform the first aspect or any of the optional implementations of the first aspect Methods.
  • a computer storage medium storing program instructions, when the instructions are executed, the wireless device can perform the second aspect or any of the optional implementations of the second aspect Methods.
  • FIG. 1 shows a schematic diagram of a communication system using a communication method and apparatus of the present application.
  • FIG. 2 shows a schematic flow chart of a communication method of the present application.
  • FIG. 3 shows a schematic block diagram of a network device of the present application.
  • FIG. 4 shows a schematic block diagram of a wireless device of the present application.
  • FIG. 5 shows a schematic block diagram of a communication device provided by the present application.
  • the communication system 100 includes a network device 102, which may include multiple antennas, such as antennas 104, 106, 108, 110, 112, and 114. Additionally, network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , demodulator, demultiplexer or antenna, etc.).
  • a network device 102 may include multiple antennas, such as antennas 104, 106, 108, 110, 112, and 114.
  • network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , demodulator, demultiplexer or antenna, etc.).
  • Network device 102 can communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it will be appreciated that network device 102 can communicate with any number of target terminal devices similar to terminal device 116 or 122.
  • terminal device 116 is in communication with antennas 112 and 114, wherein antennas 112 and 114 transmit information to terminal device 116 over forward link 118 and receive information from terminal device 116 over reverse link 120.
  • terminal device 122 is in communication with antennas 104 and 106, wherein antennas 104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.
  • forward link 118 can use a different frequency band than reverse link 120, and forward link 124 can be used differently than reverse link 126. Frequency band.
  • FDD Frequency Division Duplex
  • the forward link 118 and the reverse link 120 can use a common frequency band
  • the forward link 124 and Reverse link 126 can use a common frequency band.
  • Each antenna (or set of antennas consisting of multiple antennas) and/or regions designed for communication is referred to as a sector of network device 102.
  • the antenna group can be designed to communicate with terminal devices in sectors of the network device 102 coverage area.
  • the transmit antenna of network device 102 may utilize beamforming to improve the signal to noise ratio of forward links 118 and 124.
  • the network device 102 uses beamforming to transmit signals to the randomly dispersed terminal devices 116 and 122 in the relevant coverage area, the network device 102 uses a single antenna to transmit signals to all of its terminal devices. Mobile devices are subject to less interference.
  • network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device.
  • the wireless communication transmitting device can encode the data for transmission.
  • the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of target data bits to be transmitted to the wireless communication receiving device over the channel.
  • Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.
  • the Modulation Coding Scheme (MCS) of the existing transport block is the highest modulation coding mode in which the block error rate of the transport block received by the receiving end does not exceed 10 -1 .
  • some services have higher requirements on the block error rate of the transport block.
  • the URLLC service with high reliability and low latency is defined in 5G, the end-to-end delay requirement is less than 1 ms, and the target block error rate BLER does not exceed 10 -4. Or 10 -5 .
  • the high reliability and low latency URLLC service is mainly used in the fields of automatic driving, remote control, industrial control, tactile interconnection, VR, etc., so it is necessary to solve the problem of providing a communication method to solve some block error rate of the transmission block. Required business.
  • a table for adding a new modulation and coding mode is generally added to the existing modulation and coding mode table, and the table of the new modulation and coding mode includes more Low coding rate.
  • the choice of new and old forms brings more signaling overhead.
  • the transport block size (TBS) is bound to the number of repetitions of the Physical Downlink Shared Channel (PDSCH) carrying the system information, and the transmission is simultaneously indicated by a new index.
  • Block size and number of repetitions This binding rule is an indiscriminate uniform distribution, that is, one transport block size corresponds to the number of repetitions of all PDSCHs allowed in the system.
  • Table 1 shows the binding relationship between the transport block size and the number of repetitions of the physical downlink control channel carrying system information, which is indicated by a new index.
  • the communication system 100 may be a public land mobile network (PLMN) network or other network.
  • PLMN public land mobile network
  • FIG. 1 is only a simplified schematic diagram of an example, and the network may also include other network devices, which are not shown in FIG. .
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the terminal device in the embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or User device.
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the network device in the embodiment of the present application may be a device for communicating with the terminal device, and the network device may be a Global System of Mobile communication (GSM) system or Code Division Multiple Access (CDMA).
  • Base Transceiver Station which may also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station in an LTE system (Evolutional The NodeB, eNB or eNodeB) may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a future.
  • the network device in the 5G network or the network device in the PLMN network in the future is not limited in this embodiment.
  • FIG. 2 is a schematic flow chart of a communication method 200 of the present application. As shown in FIG. 2, the method 200 includes the following.
  • the network device determines a first index, where the first index is used to indicate the first modulation and coding mode information and the number of repetitions of the transport block, where the first modulation and coding mode information and the number of repetitions of the transport block correspond to A reliability requirement.
  • the number of repetitions of the transport block is the total number of transmissions of the transport block. If the number of repetitions of one transport block is 4, the transport block is transmitted a total of 4 times.
  • the first index may also be referred to as a first modulation coding mode index.
  • the network device transmits the first index to a wireless device.
  • the wireless device receives the first index sent by the network device.
  • the wireless device demodulates the transport block according to the first modulation and coding mode information indicated by the first index.
  • the first reliability requirement is met by the first modulation and coding mode information and the number of repetitions of the transport block
  • the first index may not only indicate the first modulation and coding mode information, but also The number of repetitions of the transport block can be indicated, so that no additional signaling is required to carry the number of repetitions of the transport block, which saves signaling overhead.
  • the wireless device may be the terminal device itself, or an element or a chip in the terminal device, or may be a device or component that is externally disposed outside the terminal device.
  • the first modulation and coding mode information includes at least one or more of the following parameters: a modulation order, a code rate, and a size of a transport block.
  • the first modulation and coding mode information is modulation and coding information used by the transport block, where the first modulation and coding mode information is modulation and coding information of the first transport block, and the first transport block is the one that repeats the number of repetitions.
  • the first reliability requirement may be a Block-Error Rate (BLER) or a Bit-Error Rate (BER).
  • BLER Block-Error Rate
  • BER Bit-Error Rate
  • the block error rate and the bit error rate proposed by the present application are only used as examples, and do not constitute any limitation on the first reliability requirement, and the first reliability requirement may also be other reliability requirements.
  • the first index, the first modulation and coding mode information, and the repetition number of the transport block are included in a group of information in the first table; or the first index and the first modulation and coding mode information are included in In a set of information in the second table, and the first index and the number of repetitions of the transport block are included in a set of information in the third table.
  • the first index, the first modulation and coding mode information, and the number of repetitions of the transport block may be included in a table, that is, the first table, as shown in Table 2, the first index, the first modulation
  • the encoding mode information and the number of repetitions of the transport block are included in a set of information in the first table, which is a row of information in Table 2. It should be understood that the set of information or each set of information described in this application is a row of information in a table.
  • the first index and the first modulation and coding mode information may be included in one table, that is, the second table, as shown in Table 3.
  • the first index and the number of repetitions of the transport block may be included in a table, that is, the third table, as shown in Table 4.
  • the correspondence between the first index, the first modulation and coding mode information, and the number of repetitions of the transport block is not limited to the first index, the first modulation and coding mode information, and the repetition of the transport block.
  • the number of times must be in a table, so that the correspondence between the first index, the first modulation and coding mode information, and the number of repetitions of the transport block is made more flexible.
  • modulation coding mode index and the number of repetitions of the transmission block may also have other corresponding manners, as shown in the formula (1):
  • x is the first coding mode index
  • R is the repetition number of the transmission block
  • the number of repetitions of the transmission block can be determined by the first coding mode index x and the formula (1).
  • equation (1) is only used as an example, and the modulation coding mode index may be different from the number of repetitions of the transport block as different for reliability requirements.
  • the correspondence between the modulation and coding mode index and the number of repetitions of the transport block may have other forms, which is not limited in this application.
  • the first table includes at least two sets of information, each of the at least two sets of information includes an index, modulation and coding mode information, and a repetition number of the transport block, and the repetition of the transport block included in each set of information
  • the number of times is one, and the number of repetitions of the transmission block included in the at least two sets of information is different, when the order of the second modulation coding mode in the first table is smaller than the order of the third modulation coding mode in the first table.
  • the number of repetitions of the transport block corresponding to the order of the second modulation and coding mode is greater than or equal to the number of repetitions of the transport block corresponding to the order of the third modulation and coding mode.
  • the first table includes at least two sets of information, each of the at least two sets of information including an index, modulation and coding mode information, and a repetition number of the transport block.
  • the number of repetitions of the transport blocks included in the at least two sets of information is different.
  • the second index 7 in the first table is smaller than the third index 8
  • the repetition number 8 of the transport block corresponding to the second index is greater than the repetition number 4 of the transport block corresponding to the third index
  • the second index 6 in the table is smaller than the third index 7, the number 8 of repetitions of the transport block corresponding to the second index is equal to the number 8 of repetitions of the transport block corresponding to the third index.
  • the lower the modulation coding mode index is, the more the repetition order of the transmission block is allowed when the modulation order is low, and the repetition times corresponding to the same modulation coding mode are unequal intervals, in particular, the lower order modulation
  • the coding mode corresponds to more repetitions, and more types of repetitions for lower-order MCS can also be used to add lower-order MCS, thereby determining a more suitable MCS for the URLLC service to satisfy the highly reliable and low-latency URLLC service. Reliability requirements.
  • each set of modulation and coding mode information are consistent, for example, including modulation order, coding rate, and number of repetitions.
  • the specific modulation order and the coding rate of the two are not exactly the same.
  • the first group of modulation and coding mode information is: the modulation order is Quadrature Phase Shift Keying (QPSK), and the coding rate is 0.2;
  • the second group of modulation and coding mode information is: the modulation order is QPSK, and the coding rate is 0.3.
  • the first set of modulation and coding scheme information and the second set of modulation and coding scheme information have the same modulation order but different coding rates.
  • the network device determines the first index from the first table according to channel state information and reliability requirements.
  • the channel state information includes a Rank Indicator (RI), a Precoding-Matrix Indicator (PMI), and a Channel Quality Indicator (CQI).
  • RI Rank Indicator
  • PMI Precoding-Matrix Indicator
  • CQI Channel Quality Indicator
  • the network device needs to know the information of the radio channel quality, and select different modulation and coding modes according to different channel quality information.
  • the network device transmits the downlink reference signal at a constant power, and the wireless device performs the estimation of the downlink channel quality according to the downlink reference signal.
  • the existing communication protocol quantizes the channel quality into a total of 16 levels from 0-15, and defines the 16 levels as channel quality indications (CQI), which correspond to channel quality from bad to good, respectively.
  • the wireless device maps the estimation result of the downlink channel quality to CQI and feeds back to the network device.
  • the wireless device transmits the uplink reference signal at a constant power, and the network device performs an estimation of the uplink channel quality according to the uplink reference signal, thereby obtaining channel state information of the uplink.
  • the network device After acquiring the channel state of the uplink or the downlink, the network device selects a modulation coding mode of the appropriate transport block and a repetition number of the transport block according to the first reliability requirement.
  • the modulation and coding mode corresponding to the CQI fed back by the wireless device is only used as a reference for network device scheduling.
  • the network device considers some information other than the channel state for scheduling.
  • the method 200 further includes: the network device receiving channel state information sent by the wireless device.
  • the second table includes at least two sets of information, each of the at least two sets of information includes an index, and modulation and coding mode information
  • the third table includes at least two sets of information, where the at least two sets of information Each set of information includes an index, and a repetition number of the transport block, the number of repetitions of the transport block included in each set of information is one; the at least two sets of information include different transport block repetition times; when the second form When the order of the second modulation coding mode is smaller than the third modulation coding mode order in the second table, the repetition number of the transmission block in the third table corresponding to the second modulation coding mode order is greater than or equal to the The number of repetitions of the transport block in the third table corresponding to the order of the third modulation coding mode.
  • the second table includes at least two sets of information, each of the at least two sets of information including index and modulation and coding mode information.
  • the third table includes the second index 7 is smaller than the third index 8
  • the number of repetitions of the transport block corresponding to the second index is greater than the number of repetitions 4 of the transport block corresponding to the third index
  • the repetition number 8 of the transport block corresponding to the second index is equal to the repetition number 8 of the transport block corresponding to the third index.
  • the network device may determine the first index from the second table and the third table based on channel state information and reliability requirements.
  • the number of repetitions of the transport block included in each group of information is one, that is, the number of repetitions of the repetition is one, as in each row of information in Table 2, Table 3, and Table 4.
  • the number of repetitions shown is one.
  • the transport block of one line of information has been repeated 8 times, and the transport block of another line of information has been repeated 4 times, but the transport block that does not have a line of information at the same time can be repeated 8 It can also be repeated 4 times.
  • the first table belongs to the first information set;
  • the first information set includes at least two sets of information, each of the at least two sets of information includes modulation coding mode information and a repetition number of the transmission block, each group The number of repetitions of the transport block in the information is at least one;
  • the maximum number of repetitions of the transport block included in the at least two sets of information is different
  • the first modulation coding mode information in the first information set includes a first modulation coding mode order that is smaller than the second modulation coding mode order included in the second modulation coding mode information in the first information set
  • the first The maximum number of repetitions of the transport block corresponding to the modulation and coding mode information is greater than or equal to the maximum number of repetitions of the transport block corresponding to the second modulation and coding mode information
  • the first table includes at least one index, and modulation coding mode information corresponding to the at least one index and a repetition number of the transmission block.
  • Table 5 shows a representation of the first set of information, and the first set of information may have other representations.
  • the information of each group includes modulation coding mode information and the number of repetitions of the transmission block, and the number of repetitions of the transmission block is at least one repetition number.
  • each group of modulation orders and the transport block corresponding to the TBS index. The number of repetitions may be 1, 2, 4 or 8, or may be 1, 2 or 4.
  • the maximum number of repetitions of the transport block included in the at least two sets of information is different, and the first modulation and coding mode information in the first information set includes a first modulation coding mode order that is smaller than the first information set.
  • the maximum repetition number of the transmission block corresponding to the first modulation coding mode information is greater than or equal to the maximum repetition of the transmission block corresponding to the second modulation coding mode information. frequency.
  • the modulation order by the higher the modulation order, the maximum number of repetitions of the allowed transport blocks is larger, and thus some services having higher requirements on the block error rate of the transport block can be satisfied.
  • a coding mode with a lower modulation index and a lower order modulation mode is generally selected, and in the prior art, a modulation coding mode index is used. The lower the number of repetitions of the transport block, the less the number of repetitions specified in the corresponding system in the case of the same size of each transport block.
  • the lower the modulation coding mode index is, the more the repetition order of the transmission block is allowed when the modulation order is low, and the repetition times corresponding to the same modulation coding mode are unequal intervals, in particular, the lower order modulation
  • the coding mode corresponds to more repetitions, and more types of repetitions for lower-order MCS can also be used to add lower-order MCS, thereby determining a more suitable MCS for the URLLC service to satisfy the highly reliable and low-latency URLLC service. Reliability requirements.
  • the network device determines the first table from the first information set according to the service type, the wireless device type, and the like.
  • the network device determines at least one set of information from the first information set according to the service type and the wireless device type, and the at least one set of information corresponds to an index, as shown in Table 1, when the service type is URLLC.
  • the network device selects multiple sets of information suitable for the URLLC service from the first information set, and the each set of information corresponds to one index.
  • the network device determines the first table from the first information set according to the service type and the wireless device type, and is generally first performed by a higher layer (such as a radio resource control (RRC) signaling or a media access control layer. Layer (Media Access Control, MAC) signaling, etc., the present application does not limit the form or type of the signaling. Selecting certain items from the first information set to form the first table, and the network device is from the first table. Determine a suitable modulation and coding method. As shown in Table 6, Table 6 is the first table determined from the first set of information.
  • RRC radio resource control
  • MAC Media Access Control
  • each set of information in the first set of information may also include an index of the set of information.
  • the index in the first information combination is different from the index in the first table, and the index in the first table is not an index corresponding to each group of information in the first information set.
  • the first modulation and coding mode information in the first information set includes a first modulation coding mode order that is smaller than a second modulation coding mode order included in the second modulation and coding mode information in the first information set.
  • the number of repetitions of the transport block corresponding to the second modulation and coding scheme information is a subset of the number of repetitions of the transport block corresponding to the first modulation and coding scheme information.
  • Table 7 shows that the first modulation and coding mode information in the first information set includes a first modulation coding mode order that is smaller than the second modulation and coding mode in the first information set.
  • the number of repetitions of the transmission block corresponding to the second modulation and coding mode information is a subset of the repetition times of the transmission block corresponding to the first modulation and coding mode information, for example, the modulation order is At 2 o'clock, the number of repetitions is 1, 2, 4 or 8.
  • the modulation order is 4, the number of repetitions is 1, 2 or 4.
  • the maximum number of repetitions of the transmission block corresponding to the first modulation and coding mode information is greater than the first The maximum number of repetitions of the transport block corresponding to the second modulation and coding mode information.
  • the number of repetitions of the transmission block corresponding to the modulation order is 1, 2, 4, or 8, and the maximum number of repetitions is 8, when the modulation order is 4.
  • the number of repetitions of the transmission block corresponding to the modulation order is 1, 2 or 4, and the maximum number of repetitions is 4, that is, when the modulation order of the first modulation and coding mode information is smaller than the modulation order of the information of the second modulation and coding mode.
  • the maximum number of repetitions of the transport block corresponding to the first modulation and coding scheme information is greater than the maximum number of repetitions of the transport block corresponding to the second modulation and coding scheme information.
  • the order of the first modulation and coding mode is smaller than the order of the second modulation and coding mode, including:
  • the first modulation order is less than the second modulation order
  • the first modulation order is the same as the second modulation order, and the first code rate is less than the second code rate; or
  • the index corresponding to the order of the first modulation and coding mode is smaller than the index corresponding to the order of the second modulation and coding mode
  • the first modulation and coding mode information includes the first modulation order and the first code rate
  • the second modulation and coding mode information includes the second modulation order and the second code rate
  • the modulation coding mode order can be considered to be smaller; secondly, when the modulation order is the same, and the code rate is smaller, the modulation coding mode order can be considered to be smaller; third, when the modulation coding mode is used The smaller the index corresponding to the order, the smaller the order of the modulation coding mode can be considered.
  • the first table belongs to a first information set, where the first information set includes at least two sets of information, each of the at least two sets of information includes modulation coding mode information and a repetition number of the transmission block, the transmission block The number of repetitions is at least one repetition number, the number of repetitions of the transport blocks included in the at least two sets of information is not completely identical, the first table includes at least one index, and modulation coding mode information and a transport block corresponding to the at least one index a number of repetitions.
  • each group includes modulation coding mode information and the number of repetitions of the transmission block, and the number of repetitions of the transmission block is at least one repetition number, as shown in Table 9, each group
  • the number of repetitions of the transmission block corresponding to the modulation order and the TBS index may be 1, 2, 4 or 8, or may be 1, 2 or 4, or may be 1, 2 or 8, or the like.
  • the wireless device demodulates the transport block according to the first modulation and coding mode information indicated by the first index.
  • the network device after transmitting, by the network device, the first index, the network device sends a transport block to the wireless device, where the transport block carries data information.
  • the wireless device receives the transport block and demodulates the transport block according to first modulation coding mode information indicated by the first index.
  • the first modulation and coding mode information of the transport block indicated by the modulation and coding mode index may be interpreted in two ways.
  • the actual modulation and coding mode is a modulation and coding mode included in the first modulation and coding mode information, where the coding rate is a coding rate of each transmission block in the repeatedly transmitted transmission block; and the modulation and coding mode also corresponds to one The number of repetitions.
  • the first modulation and coding mode information includes a modulation and coding mode parameter: QPSK, a code rate of 0.4, and a repetition number of four times
  • the wireless device interprets the transmission block transmission four times, and each of the four transmission blocks transmits the block.
  • the code rate is 0.4.
  • the actual modulation and coding mode is a new modulation and coding mode determined by the first modulation and coding mode information, and indicates a modulation and coding mode of all transmission blocks after repetition.
  • the code rate of all the transport blocks after the repetition is the code rate included in the first modulation and coding mode information divided by the number of repetitions of the transport block.
  • the modulation coding mode of the current transport block is: the modulation mode is QPSK, the code rate is 0.4, and the current transport block is repeated 4 times. Since the used resource is 4 times of the original, the code rate becomes 1/4 of the original. That is, the actual modulation and coding mode of the four transport blocks is: modulation mode QPSK, and the code rate is 0.1.
  • FIG. 3 is a schematic block diagram of a network device 300 in accordance with the present application. As shown in FIG. 3, the network device includes the following modules.
  • the determining module 310 is configured to determine a first index, where the first index is used to indicate the first modulation and coding mode information and the number of repetitions of the transport block, where the first modulation and coding mode information and the number of repetitions of the transport block correspond to A reliability requirement.
  • the sending module 320 is configured to send the first index to the wireless device.
  • the determining module 310 and the sending module 320 are used to perform various operations of a communication method 200 of the present application. For brevity, details are not described herein again.
  • FIG. 4 is a schematic block diagram of a wireless device 400 in accordance with the present application. As shown in Figure 4, the wireless device includes the following modules.
  • the receiving module 410 is configured to receive a first index sent by the network device, where the first index is used to indicate the first modulation and coding mode information and the number of repetitions of the transport block, where the first modulation and coding mode information and the transmission block are repeated. The number of times corresponds to the first reliability requirement.
  • the processing module 420 is configured to demodulate the transport block according to the first modulation and coding mode information indicated by the first index.
  • the receiving module 410 and the processing module 420 are used to perform various operations of a communication method 200 of the present application.
  • the processing module 420 are used to perform various operations of a communication method 200 of the present application.
  • details are not described herein again.
  • the wireless device may be the terminal device itself, or an element or a chip in the terminal device, or may be a device or component that is externally disposed outside the terminal device.
  • the foregoing network device is completely corresponding to the network device in the method embodiment.
  • the foregoing wireless device may refer to the wireless device in the method embodiment, and the corresponding step is performed by the corresponding module.
  • the corresponding method embodiment refers to the corresponding method embodiment.
  • FIG. 5 shows a schematic block diagram of a communication device 500 provided by the present application, the communication device 500 comprising:
  • a memory 510 configured to store a program, where the program includes a code
  • a receiver 520 configured to receive signals of other devices
  • a transmitter 530 configured to transmit signals to other devices
  • the processor 540 is configured to execute program code in the memory 510.
  • the processor 540 may implement various operations of the method 200 when the code is executed, and details are not described herein for brevity.
  • the receiver 520 is configured to perform specific signal reception under the driving of the processor 540
  • the transmitter 530 is configured to perform specific signal transmission under the driving of the processor 540.
  • the communication device 500 may be the network device or the wireless device described above, and perform the operations of the determining module, and the transmitter and/or the receiver respectively perform the corresponding steps of the sending module and the receiving module.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center via wired (eg, coaxial cable, fiber optic, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, an optical medium, or a semiconductor medium such as a Solid State Disk (SSD).
  • SSD Solid State Disk

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Abstract

La présente invention concerne un procédé et un dispositif de communication, qui peuvent respecter des critères de fiabilité selon des informations de mode de modulation et de codage et le nombre de répétitions d'un bloc de transport. Concernant le nombre de répétitions du bloc de transport, comme un premier indice peut indiquer collectivement les informations de mode de modulation et de codage et le nombre de répétitions du bloc de transport, aucune signalisation supplémentaire n'est nécessaire pour transporter le nombre de répétitions du bloc de transport, ce qui économise du temps système de signalisation. Le procédé consiste à : déterminer un premier indice, le premier indice étant utilisé pour indiquer des premières informations de mode de modulation et de codage et le nombre de répétitions d'un bloc de transport ; et transmettre le premier indice à un dispositif sans fil, les premières informations de mode de modulation et de codage et le nombre de répétitions du bloc de transport correspondant à un premier critère de fiabilité.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140169297A1 (en) * 2012-12-17 2014-06-19 Lg Electronics Inc. Method and apparatus for transmitting and receiving mcs index for 256qam in wireless access system
WO2016072746A1 (fr) * 2014-11-05 2016-05-12 엘지전자 주식회사 Procédé et dispositif permettant à un terminal de communication du type machine d'émettre et de recevoir des données dans un système d'accès sans fil acceptant une communication de type machine
CN106961318A (zh) * 2016-01-11 2017-07-18 中兴通讯股份有限公司 一种确定编码调制参数的方法、装置和系统
WO2017166294A1 (fr) * 2016-04-01 2017-10-05 Nokia Technologies Oy Procédé et appareil pour déterminer une taille de bloc de transmission pour un intervalle de temps de transmission court
WO2017166078A1 (fr) * 2016-03-29 2017-10-05 华为技术有限公司 Procédé et dispositif pour déterminer une taille de bloc de bit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140169297A1 (en) * 2012-12-17 2014-06-19 Lg Electronics Inc. Method and apparatus for transmitting and receiving mcs index for 256qam in wireless access system
WO2016072746A1 (fr) * 2014-11-05 2016-05-12 엘지전자 주식회사 Procédé et dispositif permettant à un terminal de communication du type machine d'émettre et de recevoir des données dans un système d'accès sans fil acceptant une communication de type machine
CN106961318A (zh) * 2016-01-11 2017-07-18 中兴通讯股份有限公司 一种确定编码调制参数的方法、装置和系统
WO2017166078A1 (fr) * 2016-03-29 2017-10-05 华为技术有限公司 Procédé et dispositif pour déterminer une taille de bloc de bit
WO2017166294A1 (fr) * 2016-04-01 2017-10-05 Nokia Technologies Oy Procédé et appareil pour déterminer une taille de bloc de transmission pour un intervalle de temps de transmission court

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