WO2018228498A1 - 传输控制信息的方法、终端设备和网络设备 - Google Patents

传输控制信息的方法、终端设备和网络设备 Download PDF

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Publication number
WO2018228498A1
WO2018228498A1 PCT/CN2018/091346 CN2018091346W WO2018228498A1 WO 2018228498 A1 WO2018228498 A1 WO 2018228498A1 CN 2018091346 W CN2018091346 W CN 2018091346W WO 2018228498 A1 WO2018228498 A1 WO 2018228498A1
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Prior art keywords
dci
time domain
time
time unit
domain resource
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PCT/CN2018/091346
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English (en)
French (fr)
Inventor
焦淑蓉
彭金磷
张鹏
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18818844.5A priority Critical patent/EP3629511B1/en
Publication of WO2018228498A1 publication Critical patent/WO2018228498A1/zh
Priority to US16/712,524 priority patent/US11088805B2/en

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    • 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
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • H04L5/0044Arrangements for allocating sub-channels of the transmission path allocation of payload
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0092Indication of how the channel is divided
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application relates to the field of communications, and more particularly to a method, terminal device and network device for transmitting control information.
  • the international telecommunication union defines three types of application scenarios for 5G and future mobile communication systems: enhanced mobile broadband (eMBB), high reliable low latency communication (ultra reliable and low latency). Communications, URLLC) and massive machine type communications (mMTC).
  • eMBB enhanced mobile broadband
  • URLLC high reliable low latency communication
  • mMTC massive machine type communications
  • the URLLC service requires extremely high latency.
  • the transmission delay is required to be within 0.5 milliseconds (millisecond, ms). Under the premise of 99.999% reliability, the transmission delay is required to be within 1 ms.
  • the smallest time scheduling unit is a transmission time interval (TTI) of 1 ms duration.
  • TTI transmission time interval
  • the data transmission of the wireless air interface can use a shorter time scheduling unit, for example, using a mini-slot or a larger sub-carrier time slot as the minimum time scheduling. unit.
  • a mini-slot includes one or more time domain symbols, where the time domain symbols may be orthogonal frequency division multiplexing (OFDM) symbols.
  • OFDM orthogonal frequency division multiplexing
  • control information may include information about the start time position of the data symbols in the mini-slot and the number of data symbols.
  • the method of “control information indicating the location of the data symbol in the mini-slot” is likely to cause redundancy of the bit length of the downlink control information, and the transmission efficiency of the control information in the air interface is reduced. Therefore, it is urgent to propose a new method to solve the above problems.
  • the present application provides a method for transmitting control information, a terminal device, and a network device, which helps reduce DCI bit redundancy of downlink control information, and prevents the terminal device from blindly detecting downlink control information of different bit lengths, thereby reducing the complexity of the receiver. degree.
  • a method of transmitting control information comprising:
  • the terminal device Determining, by the terminal device, a bit length of the downlink control information DCI according to the location of the target first time unit in the second time unit, where the DCI includes time domain resource location information, where the time domain resource location information is used to indicate the At least one of time domain start location information of the DCI scheduled data transmission and time domain length information of the third time unit, wherein the DCI is carried on the target first time unit, the third time unit
  • the time domain length is less than or equal to the time domain length of the second time unit;
  • the terminal device receives the DCI from a network device.
  • the terminal device determines a bit length of the downlink control information DCI according to the location of the target first time unit in the second time unit, where the DCI includes time domain resource location information, and the time domain resource location information At least one of time domain start location information indicating data transmission of the DCI scheduling and time domain length information of a third time unit, and receiving the information from the network device on the target first time unit DCI, and demodulating and decoding the DCI according to the bit length of the DCI, can prevent the terminal device from blindly detecting DCI of different bit lengths, and reduce the complexity of the receiver.
  • the bit length of the DCI that is, the payload size of the DCI.
  • the time domain length information of the third time unit is used to indicate the number of the first time units included in the third time unit.
  • the first time unit, the second time unit, and the third time unit are different time granularity concepts.
  • the second time unit is a slot
  • the third time unit is a mini-slot
  • the first time unit is a time domain symbol (such as an OFDM symbol).
  • the time domain length of the third time unit may be less than or equal to the time domain length of the second time unit
  • the third time unit may include one or more first time units
  • the second time unit includes one or more first time units Time unit.
  • the time domain length information of the third time unit is used to indicate the number of the first time units included in the third time unit.
  • the first time unit included in the third time unit may include the first time unit where the DCI is located, or may not include the first time unit where the DCI is located.
  • the time domain starting position information may indicate an absolute starting position, for example, the time domain starting position information indicates a first time unit, and may also indicate a relative starting position, for example, a time domain starting position.
  • the information indicates the relative starting position relative to the first time unit in which the DCI is located.
  • the first time unit included in the third time unit may include the first time unit where the DCI is located, or may not include the first time unit where the DCI is located.
  • the first time unit for transmitting the DCI and the first time unit for transmitting the data may be continuous in time, or may not be Continuous, this is not limited.
  • the first time unit carrying the DCI may or may not carry data.
  • the time domain resource location information may be used to indicate at least one of time domain start location information of the DCI scheduled data transmission and time domain length information of the third time unit.
  • the time domain resource location information may be used to indicate time domain start location information of a data transmission scheduled by the DCI; or, for example, the time domain resource location information may be used to indicate a time domain length of the third time unit.
  • Information; or, for example, the time domain resource location information can be used to indicate time domain start location information of data transmission scheduled by DCI, and can also indicate time domain length information of a third time unit of data transmission scheduled by DCI. .
  • the terminal device determines a bit length of the DCI according to a location of the target first time unit in the second time unit, including:
  • the terminal device determines a bit length of the DCI according to a bit length of the time domain resource location information in the DCI.
  • the first mapping relationship may be used to indicate a location index (such as a symbol number or an index) of the target first time unit in the second time unit and a bit length of time domain resource location information in the DCI. Correspondence between the two.
  • the first mapping relationship may include multiple correspondences, where each correspondence relationship is: a correspondence between a location index of each first time unit in the second time unit and a bit length of time domain resource location information in the DCI. relationship.
  • the first mapping relationship may be implemented by using an index table or a logic judgment statement, and the implementation manner is flexible.
  • the terminal device determines the bit length of the DCI-adapted time domain resource location information by the location of the target first time unit in the second time unit and the first mapping relationship. In this way, the bit length of the DCI on each time unit is guaranteed to be a single fixed value, and the bit length of the DCI in each time unit is guaranteed to be the size required for adapting the current DCI. Therefore, the blind detection of DCI with different bit lengths can be avoided, the complexity of the receiver of the terminal device can be reduced, the redundancy of the bits can be reduced, and the air interface transmission efficiency of the DCI can be improved.
  • the DCI further includes frequency domain resource location information
  • the method further includes:
  • the terminal device may determine a bit length of the DCI according to a bit length of the frequency domain resource location information in the DCI.
  • the terminal device may determine the bit length of the DCI-adapted frequency domain resource location information according to the location of the target first time unit in the second time unit.
  • the bit length of the DCI on each time unit is guaranteed to be a single fixed value, and the load size of the DCI in each time unit is guaranteed to be the size required for adapting the current DCI. Therefore, the blind detection of different sizes of DCI can be avoided, the complexity of the receiver of the terminal device can be reduced, the number of bits of the DCI can be reduced, and the air interface transmission efficiency of the DCI can be improved.
  • the determining, by the terminal device, the bit length of the frequency domain resource location information in the DCI according to the location of the target first time unit in the second time unit including:
  • the second mapping relationship may be used to indicate a correspondence between a location index (such as a number) of the target first time unit in the second time unit and a bit length of frequency domain resource location information in the DCI. relationship.
  • the second mapping relationship may include multiple correspondences, where each correspondence relationship is: a correspondence between a location index of each first time unit in the second time unit and a bit length of the frequency domain resource location information in the DCI. relationship.
  • the second mapping relationship may be implemented by using an index table or a logic judgment statement, and the implementation manner is flexible.
  • the terminal device can determine the bit length of the time domain resource location information in the DCI by using the location of the target first time unit in the second time unit and the second mapping relationship, thereby reducing the number of bits of the DCI and improving the DCI. Air interface transmission efficiency.
  • a method of transmitting control information including:
  • the time domain length is less than or equal to the time domain length of the second time unit;
  • the network device performs resource scheduling on data to generate DCI
  • the network device sends the DCI on the target first time unit, and sends the data on a time domain resource indicated by the time domain resource location information.
  • the network device determines, according to the location of the target first time unit in the second time unit, the bit length of the downlink control information DCI, where the DCI includes time domain resource location information, and the time domain resource location information At least one of time domain start location information indicating data transmission of the DCI scheduling and time domain length information of a third time unit, and receiving the information from the network device on the target first time unit
  • the DCI sends the DCI to the terminal device, so that the terminal device demodulates and decodes the DCI according to the bit length of the DCI, which can prevent the terminal device from blindly detecting DCI of different bit lengths and reduce the complexity of the receiver.
  • the bit length of the DCI that is, the payload size of the DCI.
  • the time domain length information of the third time unit is used to indicate the number of the first time units included in the third time unit.
  • the first time unit, the second time unit, and the third time unit are different time granularity concepts.
  • the second time unit is a slot
  • the third time unit is a mini-slot
  • the first time unit is a time domain symbol (such as an OFDM symbol).
  • the time domain length of the third time unit may be less than or equal to the time domain length of the second time unit
  • the third time unit may include one or more first time units
  • the second time unit includes one or more first time units Time unit.
  • the time domain length information of the third time unit is used to indicate the number of the first time units included in the third time unit.
  • the first time unit included in the third time unit may include the first time unit where the DCI is located, or may not include the first time unit where the DCI is located.
  • the time domain starting position information may indicate an absolute starting position, for example, the time domain starting position information indicates a first time unit, and may also indicate a relative starting position, for example, a time domain starting position.
  • the information indicates the relative starting position relative to the first time unit in which the DCI is located.
  • the first time unit included in the third time unit may include the first time unit where the DCI is located, or may not include the first time unit where the DCI is located.
  • the first time unit for transmitting the DCI and the first time unit for transmitting the data may be continuous in time, or may not be Continuous, this is not limited.
  • the first time unit carrying the DCI may or may not carry data.
  • the time domain resource location information may be used to indicate at least one of time domain start location information of a DCI scheduled data transmission and time domain length information of a third time unit.
  • the time domain resource location information may be used to indicate time domain start location information of a data transmission scheduled by the DCI; or, for example, the time domain resource location information may be used to indicate a time domain length of the third time unit.
  • Information; or, for example, the time domain resource location information can be used to indicate time domain start location information of data transmission scheduled by DCI, and can also indicate time domain length information of a third time unit of data transmission scheduled by DCI. .
  • the determining, by the network device, a bit length in the DCI according to a location of the target first time unit in the second time unit including:
  • the network device determines a bit length of the DCI according to a bit length of time domain resource location information in the DCI.
  • the first mapping relationship may be used to indicate a location index (such as a symbol number or an index) of the target first time unit in the second time unit and a bit length of time domain resource location information in the DCI. Correspondence between the two.
  • the first mapping relationship may include multiple correspondences, where each correspondence relationship is: a correspondence between a location index of each first time unit in the second time unit and a bit length of time domain resource location information in the DCI. relationship.
  • the first mapping relationship may be implemented by using an index table or a logic judgment statement, and the implementation manner is flexible.
  • the network device can determine the bit length of the time domain resource location information in the DCI by using the location of the target first time unit in the second time unit and the first mapping relationship, thereby determining the bit length of the DCI.
  • the DCI further includes frequency domain resource location information
  • the method further includes:
  • the network device may determine a bit length of the DCI according to a bit length of the frequency domain resource location information in the DCI.
  • the network device may determine the bit length of the DCI-adapted frequency domain resource location information according to the location of the target first time unit in the second time unit.
  • the bit length of the DCI on each time unit is guaranteed to be a single fixed value, and the load size of the DCI in each time unit is guaranteed to be the size required for adapting the current DCI. Therefore, the blind detection of different sizes of DCI can be avoided, the complexity of the receiver of the terminal device can be reduced, the number of bits of the DCI can be reduced, and the air interface transmission efficiency of the DCI can be improved.
  • the determining, by the network device, the bit length of the frequency domain resource location information in the DCI according to the location of the target first time unit in the second time unit including:
  • the second mapping relationship may be used to indicate a correspondence between a location index (such as a number) of the target first time unit in the second time unit and a bit length of frequency domain resource location information in the DCI. relationship.
  • the second mapping relationship may include multiple correspondences, where each correspondence relationship is: a correspondence between a location index of each first time unit in the second time unit and a bit length of the frequency domain resource location information in the DCI. relationship.
  • the second mapping relationship may be implemented by using an index table or a logic judgment statement, and the implementation manner is flexible.
  • the network device determines the bit length of the time domain resource location information in the DCI by using the location of the target first time unit in the second time unit and the second mapping relationship, and may allocate the appropriate frequency domain resource to the terminal device. For example, the physical resource block PRB, and get the bit length of the corresponding DCI, helps to reduce the redundancy of DCI bits.
  • a method of transmitting control information including:
  • the network device determines a bit sequence value of the time domain resource location information according to the time domain start location and the time domain length of the data transmission, where the time domain resource location information is used to indicate the time domain resource of the data transmission;
  • the network device sends downlink control information DCI, where the DCI includes the time domain resource location information.
  • the network device may jointly determine the bit sequence value of the time domain resource location information according to the time domain start position and the time domain length during data transmission, and may reduce the bit length of the DCI.
  • the determining, by the network device, a bit sequence value of the time domain resource location information according to the time domain start location and the time domain length of the data transmission including:
  • the coding mapping relationship may be implemented by using an index table or a logic judgment statement, and the implementation manner is flexible.
  • the network device may determine the bit sequence value of the time domain resource location information according to the time domain start position of the data transmission and the time domain length and the coding mapping relationship, so as to generate the DCI according to the obtained bit sequence value.
  • a method for transmitting control information including:
  • the terminal device receives the downlink control information DCI, where the DCI includes time domain resource location information, where the time domain resource location information is used to indicate a time domain resource for data transmission;
  • the terminal device acquires the time domain resource location information, and determines a time domain start location and a time domain length of the data transmission according to the time domain resource location information.
  • the terminal device acquires time domain resource location information, and determines a time domain start location and a time domain length of the data transmission according to the time domain resource location information, where the network device is according to the data.
  • the time domain start position and the time domain length of the transmission jointly determine the value of the bit sequence of the time domain resource location information, which can save the bit length of the DCI.
  • determining a time domain start location and a time domain length of the data transmission according to the time domain resource location information including:
  • the coding mapping relationship may be implemented by using an index table or a logic judgment statement, and the implementation manner is flexible.
  • the terminal device can determine the time domain start position and the time domain length of the data transmission according to the time domain resource location information and the coding mapping relationship, thereby performing data transmission.
  • a method for transmitting control information including:
  • the terminal device determines a bit length of the frequency domain resource location information in the downlink control information DCI according to the location of the target first time unit in the second time unit, where the frequency domain resource location information is used to indicate the DCI scheduling The frequency domain resource location used by the data transmission;
  • the terminal device may determine a bit length of the DCI according to a bit length of the frequency domain resource location information in the DCI.
  • the terminal device may determine the bit length of the DCI-adapted frequency domain resource location information according to the location of the target first time unit in the second time unit.
  • the bit length of the DCI on each time unit is guaranteed to be a single fixed value, and the load size of the DCI in each time unit is guaranteed to be the size required for adapting the current DCI. Therefore, the blind detection of different sizes of DCI can be avoided, the complexity of the receiver of the terminal device can be reduced, the number of bits of the DCI can be reduced, and the air interface transmission efficiency of the DCI can be improved.
  • the first time unit and the second time unit are different time granularity concepts.
  • the second time unit is a slot
  • the first time unit is a time domain symbol (such as an OFDM symbol).
  • the second time unit includes one or more first time units.
  • the determining, by the terminal device, the bit length of the frequency domain resource location information in the DCI according to the location of the target first time unit in the second time unit specifically:
  • the second mapping relationship may be implemented by using an index table or a logic judgment statement, and the implementation manner is flexible.
  • the terminal device may determine the bit length of the frequency domain resource location information in the DCI according to the location of the target first time unit in the second time unit and the second mapping relationship.
  • a method for transmitting control information including:
  • the network device may determine a bit length of the DCI according to a bit length of the frequency domain resource location information in the DCI.
  • the network device may determine the bit length of the DCI-adapted frequency domain resource location information according to the location of the target first time unit in the second time unit, and allocate the appropriate frequency domain resource to the terminal device. And get the corresponding bit length of the DCI.
  • the bit length of the DCI on each time unit is guaranteed to be a single fixed value, and the load size of the DCI in each time unit is guaranteed to be the size required for adapting the current DCI. Therefore, the blind detection of different sizes of DCI can be avoided, the complexity of the receiver of the terminal device can be reduced, the number of bits of the DCI can be reduced, and the air interface transmission efficiency of the DCI can be improved.
  • the determining, by the network device, the bit length of the frequency domain resource location information in the DCI according to the location of the target first time unit in the second time unit specifically includes:
  • the first time unit and the second time unit are different time granularity concepts.
  • the second time unit is a slot
  • the first time unit is a time domain symbol (such as an OFDM symbol).
  • the second time unit includes one or more first time units.
  • the second mapping relationship may be implemented by using an index table or a logic judgment statement, and the implementation manner is flexible.
  • the network device may determine the bit length of the frequency domain resource location information in the DCI according to the location of the target first time unit in the second time unit and the second mapping relationship, and may allocate a suitable frequency domain to the terminal device.
  • the resources and the corresponding bit length of the DCI help to reduce the redundancy of the DCI bits.
  • a terminal device for performing the method of any of the above first aspect or any of the possible implementations of the first aspect.
  • the terminal device comprises means for performing the method of the first aspect or any of the possible implementations of the first aspect described above.
  • a network device for performing the method of any of the foregoing second aspect or any of the possible implementations of the second aspect.
  • the network device comprises means for performing the method of any of the above-described second or second aspects of the second aspect.
  • a network device for performing the method of any of the foregoing third aspect or any of the possible implementations of the third aspect.
  • the network device comprises means for performing the method of any of the possible implementations of the third aspect or the third aspect described above.
  • the terminal device for performing the method of any of the above-mentioned fourth aspect or any possible implementation of the fourth aspect.
  • the terminal device comprises means for performing the method of any of the above-described fourth or fourth aspects of the fourth aspect.
  • a terminal device for performing the method in any of the possible implementations of the fifth aspect or the fifth aspect above.
  • the terminal device comprises means for performing the method in any of the possible implementations of the fifth or fifth aspect above.
  • a network device for performing the method in any of the possible implementations of the sixth aspect or the sixth aspect above.
  • the network device comprises means for performing the method in any of the possible implementations of the sixth or sixth aspect above.
  • a terminal device in a thirteenth aspect, includes a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of the first aspect or any of the possible implementations of the first aspect.
  • a network device in a fourteenth aspect, includes a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of any of the possible implementations of the second aspect or the second aspect.
  • a terminal device in a fifteenth aspect, includes a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of any of the possible implementations of the third aspect or the third aspect.
  • a network device in a sixteenth aspect, includes a processor, a memory, and a communication interface.
  • the processor is connected to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of any of the possible implementations of the fourth aspect or the fourth aspect.
  • a terminal device in a seventeenth aspect, includes a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of any of the possible implementations of the fifth or fifth aspect.
  • a network device in a eighteenth aspect, includes a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of any of the possible implementations of the sixth or sixth aspect.
  • a nineteenth aspect a computer readable storage medium storing a program for causing a terminal device to perform the above first aspect, and any of the various implementations of the transmission control information Methods.
  • a computer readable storage medium storing a program causing a network device to perform the second aspect described above, and any one of the various implementations of the transmission control information Methods.
  • a twenty-first aspect a computer readable storage medium storing a program causing a network device to perform the above third aspect, and any one of the various implementations of the transmission control The method of information.
  • a twenty-second aspect a computer readable storage medium storing a program causing a terminal device to perform the fourth aspect described above, and any one of the various implementations of the transmission control The method of information.
  • a twenty-third aspect a computer readable storage medium storing a program for causing a terminal device to perform the above fifth aspect, and any one of the various implementations of the transmission control The method of information.
  • a twenty-fourth aspect a computer readable storage medium storing a program causing a network device to perform the sixth aspect of the above, and any one of the various implementations of the transmission control The method of information.
  • a computer program product comprising instructions which, when run on a computer, cause the computer to perform the methods of the above aspects and any of the possible implementations of the above aspects.
  • FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the present application is applied.
  • FIG. 2 is a schematic interaction diagram of a method of transmitting control information according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of an example of a minislot.
  • FIG. 4 is a schematic diagram of another example of a minislot.
  • Figure 5 is a schematic diagram of still another example of a minislot.
  • Figure 6 is a schematic illustration of another example of a minislot.
  • FIG. 7 is a schematic interaction diagram of a method of transmitting control information according to an embodiment of the present application.
  • Figure 8 is a schematic illustration of another example of a minislot.
  • FIG. 9 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a terminal device according to another embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a network device according to another embodiment of the present application.
  • FIG. 13 is a structural block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 14 is a structural block diagram of a network device according to an embodiment of the present application.
  • FIG. 15 is a structural block diagram of a network device according to another embodiment of the present application.
  • FIG. 16 is a structural block diagram of a terminal device according to another embodiment of the present application.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD Time division duplex
  • NR 5G new radio
  • OFDM orthogonal frequency division multiplexing
  • FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the present application is applied.
  • the mobile communication system includes a core network device 110, a radio access network device 120, and at least one terminal device (such as the terminal device 130 and the terminal device 140 in FIG. 1).
  • the terminal device is connected to the radio access network device by means of a wireless connection, and the radio access network device is connected to the core network device by wireless or wired.
  • the core network device and the wireless access network device may be independent physical devices, or may integrate the functions of the core network device with the logical functions of the wireless access network device on the same physical device, or may be a physical device.
  • the functions of some core network devices and the functions of some wireless access network devices are integrated.
  • the terminal device can be fixed or mobile.
  • FIG. 1 is only a schematic diagram, and other communication devices may be included in the communication system, and may also include a wireless relay device and a wireless backhaul device (not shown in FIG. 1).
  • the embodiment of the present application does not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.
  • the radio access network device is an access device that the terminal device accesses to the mobile communication system by using a wireless device, and may be a base station NodeB, an evolved base station eNodeB, a base station gNB in a 5G mobile communication system, or a base station in a future mobile communication system.
  • the specific technology and the specific device configuration adopted by the radio access network device are not limited in the embodiment of the present application.
  • the terminal device may also be referred to as a terminal terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), and the like.
  • the terminal device can be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, industrial control (industrial control) Wireless terminal, wireless terminal in self driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless in transport safety A terminal, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like.
  • Radio access network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or on-board; they can also be deployed on the water; they can also be deployed on aircraft, balloons and satellites in the air.
  • the application scenarios of the radio access network device and the terminal device are not limited.
  • the embodiments of the present application can be applied to downlink signal transmission, and can also be applied to uplink signal transmission, and can also be applied to device to device (D2D) signal transmission.
  • the transmitting device is a radio access network device, and the corresponding receiving device is a terminal device.
  • the transmitting device is a terminal device, and the corresponding receiving device is a wireless access network device.
  • the transmitting device is a terminal device, and the corresponding receiving device is also a terminal device.
  • the embodiment of the present application does not limit the transmission direction of the signal.
  • the radio access network device and the terminal device and the terminal device and the terminal device and the terminal device can communicate through a licensed spectrum, or can communicate through an unlicensed spectrum, or can simultaneously pass the licensed spectrum and Authorize the spectrum for communication.
  • the radio access network device and the terminal device and the terminal device and the terminal device can communicate through a spectrum of 6G megahertz (GHz) or less, or can communicate through a spectrum of 6 GHz or higher, and can also use a frequency below 6 GHz.
  • the spectrum communicates with the spectrum above 6 GHz.
  • the embodiment of the present application does not limit the spectrum resources used between the radio access network device and the terminal device.
  • FIG. 2 shows a schematic interaction diagram of a method 200 of transmitting control information in accordance with an embodiment of the present application.
  • the network device in FIG. 2 may be the radio access network device 120 in FIG. 1
  • the terminal device in FIG. 2 may be the terminal device 130 or the terminal device 140 in FIG.
  • the method 200 includes:
  • the network device determines a bit length of downlink control information (DCI), where the DCI includes time domain resource location information;
  • DCI downlink control information
  • the network device determines, according to the location of the target first time unit in the second time unit, a bit length of the time domain resource location information in the DCI, where the time domain resource location information is used to indicate the data transmission of the DCI scheduling.
  • the first time unit, the second time unit, and the third time unit are different time granularity concepts.
  • the second time unit is a slot
  • the third time unit is a mini-slot
  • the first time unit is a time domain symbol (such as an OFDM symbol).
  • the time domain length of the third time unit may be less than or equal to the time domain length of the second time unit
  • the third time unit may include one or more first time units
  • the second time unit includes one or more first time units Time unit.
  • the time domain length information of the third time unit is used to indicate the number of the first time units included in the third time unit.
  • a mini-slot can include one or more time domain symbols.
  • the first time unit included in the third time unit may include the first time unit where the DCI is located, or may not include the first time unit where the DCI is located, which is not limited thereto. .
  • the DCI is carried on the target first time unit. It should be understood that the DCI may be carried on multiple first time units, and only the target first time unit is taken as an example for description.
  • the target first time unit is a first first time unit of the DCI bearer.
  • the network device may determine, according to the location of the target time domain symbol in the time slot, a bit length or a total number of bits occupied by the time domain resource location information in the DCI, where the time domain resource location information is used to indicate DCI scheduling.
  • the time domain starting position information may indicate an absolute starting position, for example, the time domain starting position information indicates a first time unit, and may also indicate a relative starting position, for example, a time domain starting position.
  • the information indicates a relative starting position relative to the first time unit in which the DCI is located, which is not limited thereto.
  • the time domain resource location information may be used to indicate at least one of time domain start location information of the DCI scheduled data transmission and time domain length information of the third time unit.
  • the time domain resource location information may be used to indicate time domain start location information of a data transmission scheduled by the DCI; or, for example, the time domain resource location information may be used to indicate a time domain length of the third time unit.
  • Information; or, for example, the time domain resource location information can be used to indicate time domain start location information of data transmission scheduled by DCI, and can also indicate time domain length information of a third time unit of data transmission scheduled by DCI. .
  • the DCI may include many domains, such as frequency domain location information of a data, a modulation and coding scheme (MCS), a redundancy version (RV), a new data indicator (NDI), and a hybrid automatic weight.
  • MCS modulation and coding scheme
  • RV redundancy version
  • NDI new data indicator
  • HARQ hybrid automatic repeat request
  • a hybrid automatic repeat request (HARQ) process number or the like may additionally include time domain resource location information in this embodiment.
  • the bit length of the DCI can be further determined.
  • the network device performs resource scheduling on the data to generate a DCI.
  • the terminal device determines a bit length of the downlink control information DCI, where the DCI includes time domain resource location information.
  • the terminal device determines a bit length of the time domain resource location information in the DCI according to the location of the target first time unit in the second time unit, where the time domain resource location information is used to indicate the DCI scheduling At least one of time domain start location information of data transmission and time domain length information of a third time unit, wherein the DCI is carried on the target first time unit, and the time domain of the third time unit The length is less than or equal to the time domain length of the second time unit;
  • the network device sends the DCI on the target first time unit, and sends the data on a time domain resource indicated by the time domain resource location information.
  • the terminal device may receive the DCI sent by the network device on the target first time unit.
  • bit length of the DCI that is, the payload size of the DCI.
  • the terminal device may determine, according to a bit length of the time domain resource location information in the DCI, a bit length of the DCI.
  • the terminal device demodulates and decodes the DCI according to a bit length of the DCI.
  • the terminal device may determine the bit length of the time domain resource location information in the DCI according to the location of the target first time unit in the second time unit. Then, the terminal device can according to the bit length of the time domain resource location information in the DCI. Then, the terminal device receives the DCI sent by the network device on the target first time unit, and demodulates and decodes the DCI according to the bit length of the DCI.
  • the bit length of the DCI is adapted to the size required for the DCI corresponding to the target first time unit, thereby reducing the waste of the bit length of the DCI.
  • the terminal device determines that the DCI payload size is (X+4) bits, and X is the bit length of other information in the DCI, then the terminal device Only need to detect the (X+4) bit payload size.
  • the prior art uniformly uses 6 bits to represent time domain resource location information, so that redundant bits exist, which reduces air interface transmission efficiency.
  • the method for transmitting control information used in the embodiments of the present application can reduce the number of bits of the DCI and improve the transmission efficiency of the control information in the air interface.
  • the bit length adopted by the embodiment of the present application is specific to the specific time domain symbol, and the bit length of the DCI is determined, thereby avoiding blind detection of DCI of different bit lengths, and reducing the complexity of the receiver.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.
  • the first time unit included in the third time unit may include the first time unit where the DCI is located, or may not include the first time unit where the DCI is located.
  • the first time unit for transmitting the DCI and the first time unit for transmitting the data may be continuous or discontinuous in time, which is not limited thereto.
  • the first time unit carrying the DCI may or may not carry data.
  • the third time unit is a mini slot mini-slot
  • the second time unit is a slot slot
  • the first time unit is described as a time domain symbol.
  • Fig. 3 shows a schematic diagram of an example of a minislot.
  • the time domain symbols in which the control information and the data information are located are consecutive in time.
  • time slot 1 in FIG. 3 can be represented by bit bitmap 1111111.
  • the upper two graphs in FIG. 3 (including slot 1 and slot 2) indicate that data can be transmitted on the time domain symbol where the control information is located, and the lower two graphs in FIG. 3 (including slot 3 and slot 4) ) indicates that no data is sent on the time domain symbol where the control information is located.
  • Fig. 4 shows a schematic diagram of another example of a minislot.
  • the time domain symbols in which the control information and the data information are located may be discontinuous in time, but the time domain symbols in which the data information is located are continuous in time.
  • the time domain start position (which may also be referred to as position offset offset, hereinafter also referred to) refers to the interval between the time domain symbol in which the control information is located and the first time domain symbol in which the data information is located;
  • the length of the time domain length refers to the number of time domain symbols occupied by the data information.
  • the length of the minislot is the number of total time domain symbols occupied by the control information and the data information.
  • the mini-slot in slot 1 includes time domain symbol 1, time domain symbol 3, time domain symbol 4, and time domain symbol 5; the mini-slot in slot 2 includes time domain symbol 3, time domain symbol 5, and Time domain symbol 6.
  • the interval between the time domain symbol 1 and the time domain symbol 3 in slot 1 is 2; the length of the time domain symbol occupied by the data information in slot 1 is 3.
  • the interval between the time domain symbol 3 and the time domain symbol 5 in slot 2 is 2; the length of the time domain symbol occupied by the data information in slot 1 is 2.
  • Fig. 5 shows a schematic diagram of still another example of a minislot.
  • the difference from FIG. 4 is that the time domain symbols in which the control information and the data are located may be discontinuous in time, but the data information may be carried in the time domain symbol in which the control information is located.
  • the time domain start position refers to the interval between the time domain symbol in which the control information is located and the first time domain symbol in which the data information is located; the time domain length length refers to the time domain symbol occupied by the data information.
  • the number As shown in FIG. 5, for slot 1 or slot 2, the length of the minislot is the number of total time domain symbols occupied by the control information and the data information.
  • the mini-slot in slot 1 includes time domain symbol 1, time domain symbol 3, time domain symbol 4, and time domain symbol 5; the mini-slot in slot 2 includes time domain symbol 3, time domain symbol 5, and Time domain symbol 6.
  • the interval between the time domain symbol 1 and the time domain symbol 3 in slot 1 is 2; the length of the time domain symbol occupied by the data information in slot 1 is 3.
  • the interval between the time domain symbol 3 and the time domain symbol 5 in slot 2 is 2; the length of the time domain symbol occupied by the data information in slot 1 is 2.
  • the length of the mini-slot is defined as the number of total time-domain symbols occupied by the control information and the data information.
  • Fig. 6 shows a schematic diagram of another example of a minislot.
  • the length of the mini-slot is defined as the number of time-domain symbols occupied by all data information.
  • the time domain start position refers to the interval between the time domain symbol in which the control information is located and the first time domain symbol in which the data information is located; the time domain length length refers to the time domain symbol occupied by the data information.
  • the number As shown in FIG. 6, for slot 1 or slot 2, the length of the minislot is the number of total time domain symbols occupied by the data information.
  • the minislots in slot 1 include time domain symbol 3, time domain symbol 4, and time domain symbol 5; the minislots in slot 2 include time domain symbol 5 and time domain symbol 6.
  • the interval between the time domain symbol 1 and the time domain symbol 3 in slot 1 is 2; the length of the time domain symbol occupied by the data information in slot 1 is 3.
  • the interval between the time domain symbol 3 and the time domain symbol 5 in slot 2 is 2; the length of the time domain symbol occupied by the data information in slot 1 is 2.
  • the relationship between the first time units in the third time unit may include the following:
  • the first time unit for carrying the DCI and the first time unit for carrying the data are consecutive in time, and the first time unit for carrying the DCI is not used for carrying data;
  • the first time unit for carrying the DCI and the first time unit for carrying the data are consecutive in time, and the first time unit for carrying the DCI can be used for carrying data at the same time;
  • the first time unit for carrying the DCI and the first time unit for carrying the data are discontinuous in time, and the first time unit for carrying the DCI is not used for carrying data;
  • the first time unit for carrying the DCI and the first time unit for carrying the data are discontinuous in time, and the first time unit for carrying the DCI can be used for carrying data at the same time.
  • the first mapping relationship is introduced, so that the network device or the terminal device can learn the bit length of the time domain resource location information corresponding to different time units by combining the first mapping relationship. Will be described in detail.
  • S201 may include:
  • the determining the bit length of the DCI includes:
  • the network device determines a bit length of the DCI according to a bit length of the frequency domain resource location information in the DCI.
  • the network device may determine a bit length of the DCI according to a location of the target first time unit in the second time unit and a first mapping relationship.
  • S203 may include:
  • the determining the bit length of the DCI includes:
  • the terminal device determines a bit length of the DCI according to a bit length of the frequency domain resource location information in the DCI.
  • the terminal device may determine the bit length of the DCI according to the location of the target first time unit in the second time unit and the first mapping relationship.
  • the network device or the terminal device may determine the bit length required for the time domain resource location information in the DCI according to the location of the target first time unit in the second time unit and the first mapping relationship.
  • the first mapping relationship may be used to indicate a location index (such as a symbol number or an index) of the target first time unit in the second time unit and a bit length of time domain resource location information in the DCI. Correspondence between the two.
  • the first mapping relationship may include multiple correspondences, where each correspondence relationship is: a correspondence between a location index of each first time unit in the second time unit and a bit length of time domain resource location information in the DCI. relationship.
  • the index number in the first column is the position index of the first time unit in the second time unit;
  • the second column is The bit length of the time domain start position information;
  • the third column is the bit length of the time domain length information;
  • the fourth column is the bit length of the time domain resource location information;
  • the fifth column is the bit length according to different time domain resource location information.
  • the assigned gears are not limited to the embodiments of the present application, and may or may not exist in the specific implementation.
  • Symbol index 0-2 uses 6bit (corresponding to gear 1)
  • Symbol index 3-4 uses 4bit (corresponding to gear 2)
  • Symbol index 5 uses 2bit (corresponding gear 3)
  • Symbol index 6 uses 0bit (corresponding to gear 4).
  • Time domain start position information and time domain length information are not required on Symbol index 6.
  • the above description only takes the first mapping relationship as the above-mentioned Table 1 as an example, and does not limit the embodiment of the present application. Those skilled in the art can reorganize or transform the above Table 1 to suit the actual needs.
  • the above-mentioned table lookup mode is only a specific implementation manner, and those skilled in the art can implement the above-mentioned joint coding through other implementation manners, for example, the above coding is implemented by coding modes such as C language, C++ language, VB language, JAVA language, and the like.
  • a person skilled in the art can implement various possibilities in the above mapping relationship only by an if...else statement, a for statement, and a while statement, without introducing a mapping relationship table as shown in Table 1.
  • the network device may search for the first mapping relationship according to the Symbol index, and learn the total bit length of the time domain resource location information in the DCI, the bit length of the time domain start location of the data transmission scheduled by the DCI, and the data symbol.
  • Bit length For example, when the Symbol index is 3, the network device knows through the first mapping relationship that the bit length of the time domain resource location information in the DCI is 4 bits, and the bit length of the time domain start location information is 2 bits, and the bit length of the time domain length information. It is 2bit. In this way, the network device performs resource scheduling on the data, generates DCI, then transmits the DCI on the time domain symbol with a Symbol index of 3, and transmits the data on the corresponding data symbol.
  • the terminal device may search for the first mapping relationship according to the Symbol Index, and learn the total bit length of the time domain resource location information in the DCI, the bit length of the time domain start location of the data transmission scheduled by the DCI, and the data symbol. Bit length. Further, the terminal device can determine the bit length of the DCI. For example, when the Symbol index is 3, the terminal device can learn by using the first mapping relationship that the bit length of the time domain resource location information in the DCI is 4 bits, and the bit length of the time domain start location information is 2 bits, and the bit length of the time domain length information. The length is 2bit. The terminal device can know that the bit length of the DCI is 4 bits.
  • the terminal device can receive the DCI sent by the network device on the time domain symbol with the Symbol index of 3, and perform detection and decoding according to the bit length of the DCI, and obtain the time domain starting position and the time domain length of the actual DCI transmission. (For example, the number of data symbols).
  • several unused bits of the DCI in the partial symbol may also be reserved bits reserved for other possible uses.
  • the terminal device can learn whether the reserved bit exists in the received DCI according to the Symbol index, and does not affect the reception of the terminal device. It should be understood that only a possible case is illustrated herein, that is, there may be a reserved bit in some DCIs, but it does not limit the embodiments of the present application.
  • the network device or the terminal device can determine the bit length of the time domain resource location information in the DCI by using the Symbol index and the first mapping relationship.
  • the terminal device may determine the bit length of the DCI-adapted time domain resource location information according to the location of the target first time unit in the second time unit.
  • the bit length of the DCI on each time unit is guaranteed to be a single fixed value, and the bit length of the DCI in each time unit is guaranteed to be the size required for adapting the current DCI. Therefore, the blind detection of DCI with different bit lengths can be avoided, the complexity of the receiver of the terminal device can be reduced, the redundancy of the bits can be reduced, and the air interface transmission efficiency of the DCI can be improved.
  • the embodiment in which the network device or the terminal device can determine the bit length of the time domain resource location information in the downlink control information DCI according to the location of the target first time unit in the second time unit is described above.
  • the information related to the scheduled data may also include frequency domain resource location information, and embodiments related to "frequency domain resource location information" will be provided below. It should be understood that the embodiment of the "frequency domain resource location information" may be used in combination with the embodiment of the "time domain resource location information" (including the foregoing method 200), or may be implemented separately, which is not limited thereto. The embodiment will be specifically described below.
  • the embodiment may include:
  • the network device may determine a bit length of the DCI according to a bit length of the frequency domain resource location information in the DCI.
  • the determining, by the network device, the bit length of the frequency domain resource location information in the DCI according to the location of the target first time unit in the second time unit specifically:
  • the network device may determine, according to the location of the target first time unit in the second time unit and the second mapping relationship, a bit length of the frequency domain resource location information in the DCI, and may allocate an appropriate terminal device.
  • Frequency domain resources such as physical resource blocks (PRBs), and get the bit length of the corresponding DCI, help to reduce the redundancy of DCI bits.
  • PRBs physical resource blocks
  • the embodiment may include:
  • the terminal device may determine a bit length of the DCI according to a bit length of the frequency domain resource location information in the DCI.
  • the determining, by the terminal device, the bit length of the frequency domain resource location information in the DCI according to the location of the target first time unit in the second time unit specifically:
  • the terminal device may determine, according to the location of the target first time unit in the second time unit and the second mapping relationship, the bit length of the frequency domain resource location information in the DCI, thereby reducing the number of bits of the DCI, Improve the air interface transmission efficiency of DCI.
  • the network device or the terminal device can learn the bit length of the frequency domain resource location information corresponding to different time units in combination with the second mapping relationship, which will be specifically described below.
  • the second mapping relationship may be used to indicate a correspondence between a location index (such as a number) of the target first time unit in the second time unit and a bit length of frequency domain resource location information in the DCI. relationship.
  • the second mapping relationship may include multiple correspondences, where each correspondence relationship is: a correspondence between a location index of each first time unit in the second time unit and a bit length of the frequency domain resource location information in the DCI. relationship.
  • the index number in the first column is the position index of the first time unit in the second time unit; the second column is The maximum length of schedulable data; the third column is the frequency domain resource scheduling granularity; the fourth column is the bit length of the frequency domain resource location information in the DCI (also referred to as the number of bits required for the frequency domain location information field).
  • the available resources of the unit time-frequency resource block for example, the time-frequency block of a symbol *b sub-carriers, where a, b are integers
  • the mini-slot The shorter the length, the smaller the number of symbols, and the larger the frequency domain granularity of the unit time-frequency resource block, which means that the number of bits required for the frequency domain location information field is less under the same bandwidth. For example, taking a 20 MHz system bandwidth as an example, the subcarrier spacing is 15 kHz, and there are 100 PRBs. For example, if the number of PRBs corresponding to Symbol index 0 is 8, the corresponding total bit value is 13, that is, 100 pairs.
  • the contents of the second column and the third column are introduced in the above table 2 only to derive the fourth column. Therefore, the content of the above table 2 may only have the contents of the first column and the fourth column, which is not limited thereto.
  • mapping relationship may be pre-agreed, and both the network device and the terminal device may be known.
  • the foregoing description only takes the second mapping relationship as the above-mentioned Table 2 as an example, and does not limit the embodiment of the present application.
  • Those skilled in the art may reorganize or transform the above-mentioned Table 2 to meet practical needs.
  • the above-mentioned table lookup mode is only a specific implementation manner, and those skilled in the art can implement the above-mentioned joint coding through other implementation manners, for example, the above coding is implemented by coding modes such as C language, C++ language, VB language, JAVA language, and the like.
  • a person skilled in the art can implement various possibilities in the above mapping relationship only by an if...else statement, a for statement, and a while statement, without introducing a mapping relationship table as shown in Table 2.
  • the network device may look up the foregoing Table 2 according to the Symbol index, and obtain the bit length of the frequency domain resource location information in the DCI. For example, when the Symbol index is 0, the network device can know that the total bit length of the frequency domain resource location information in the DCI is 13 by using Table 2. In this way, the network device performs resource scheduling on the data and generates DCI, and then sends the DCI on the time domain symbol with the Symbol index of 0, and sends the data on the corresponding data symbol.
  • the terminal device may search for the foregoing second mapping relationship according to the Symbol index, and obtain the total bit length of the frequency domain resource location information in the DCI. For example, when the Symbol index is 0, the terminal device can know that the total bit length of the frequency domain resource location information in the DCI is 13 by using the second mapping relationship. Thus, the terminal device receives the DCI using the corresponding PRB on the time domain symbol with the Symbol index of 0, and receives the data on the corresponding data symbol.
  • the network device or the terminal device can determine the bit length of the frequency domain resource location information in the DCI by using the Symbol index and the second mapping relationship.
  • the terminal device may determine the bit length of the DCI-adapted frequency domain resource location information according to the location of the target first time unit in the second time unit.
  • the bit length of the DCI on each time unit is guaranteed to be a single fixed value, and the load size of the DCI in each time unit is guaranteed to be the size required for adapting the current DCI. Therefore, the blind detection of different sizes of DCI can be avoided, the complexity of the receiver of the terminal device can be reduced, the number of bits of the DCI can be reduced, and the air interface transmission efficiency of the DCI can be improved.
  • FIG. 7 shows a schematic interaction diagram of a method 700 of transmitting control information in accordance with an embodiment of the present application.
  • the network device in FIG. 7 may be the radio access network device 120 in FIG. 1
  • the terminal device in FIG. 7 may be the terminal device 130 or the terminal device 140 in FIG.
  • the method 700 includes:
  • the network device determines a bit sequence value of the time domain resource location information according to the time domain start location and the time domain length of the data transmission, where the time domain resource location information is used to indicate the time when the data is transmitted.
  • Domain resource
  • the network device may perform resource scheduling on the data, and determine a time domain start location and a time domain length of the data transmission;
  • the time domain start position information may indicate an absolute starting position, and may also indicate a relative starting position, which is not limited thereto.
  • the network device generates downlink control information DCI according to the value of the bit sequence
  • the network device sends the downlink control information DCI;
  • the network device may send the data on a time domain resource indicated by the time domain resource location information;
  • the terminal device receives the downlink control information DCI;
  • the terminal device performs demodulation and decoding on the DCI, where the DCI includes time domain resource location information, where the time domain resource location information is used to indicate a time domain resource during data transmission.
  • the terminal device acquires time domain resource location information, and determines a time domain start location and a time domain length of the data transmission according to the time domain resource location information.
  • the terminal device receives the data on a time domain resource corresponding to the start time position and the time domain length of the time domain.
  • the time domain starting position and the time domain length of the data transmission may be determined, and then the time domain resource location information is determined according to the time domain starting position and the time domain length of the data transmission.
  • the bit sequence value is used, wherein the time domain resource location information is used to indicate a time domain resource when the data is transmitted.
  • the network device may generate a DCI according to the value of the bit sequence, and send the DCI to the terminal device, and send the data on the time domain resource indicated by the time domain resource location information.
  • the terminal device demodulates and decodes the DCI to obtain time domain resource location information.
  • the terminal device may determine a time domain start location and a time domain length of the data transmission according to the time domain resource location information, so as to receive data on the time domain resource corresponding to the time domain start location and the time domain length.
  • the network device may jointly determine the bit sequence value of the time domain resource location information according to the time domain starting position and the time domain length during data transmission, that is, the bit sequence is for the “time domain start”.
  • the joint coding mode of the embodiment of the present application can keep the bit length of the DCI on each time unit the same.
  • the joint coding mode of the embodiment of the present application optimizes the bit length of the DCI, and a smaller bit length can be adopted.
  • the DCI needs to use (X+6) bits, where X refers to the bit length of other information in the DCI.
  • the bit length of the DCI may be (X+Y) bit, where Y Less than 6, Y is preset. Therefore, the technical solution of the embodiment of the present application can reduce the length of the DCI.
  • the network device or the terminal device may be combined with the coding mapping relationship to learn the time domain starting position and the time domain length corresponding to the data transmission.
  • the bit sequence of the time domain resource location information takes a value, which will be described in detail below.
  • S701 may include:
  • the coding mapping relationship may include multiple correspondences, where each correspondence relationship is: a correspondence between a time domain start position and a time domain length during data transmission and a bit sequence value of the time domain resource location information.
  • the coding mapping relationship used by the terminal device side is also the same, and will not be described for brevity.
  • S702 can include:
  • the joint coding mode may be adopted.
  • the joint coding may be performed by using 5 bits, and the bit of the time domain resource location information corresponding to the start position of each time domain is used.
  • the length is 5bit.
  • the first column is the time domain start position (also called the position offset offset) at the time of data transmission; the second column is the time domain length of the data transmission; the third column is the joint coded bit sequence. Value. Below Table 3, some bit sequence values can be reserved as reserved values for other possible uses.
  • the above description only takes the coding mapping relationship as the above-mentioned Table 3 as an example, and does not limit the embodiment of the present application. Those skilled in the art may reorganize or transform the above Table 3 to suit the actual needs.
  • the above-mentioned table lookup mode is only a specific implementation manner, and those skilled in the art can implement the above-mentioned joint coding through other implementation manners, for example, the above coding is implemented by coding modes such as C language, C++ language, VB language, JAVA language, and the like.
  • a person skilled in the art can implement various possibilities in the above coding mapping relationship only by an if...else statement, a for statement, and a while statement, without introducing a coding mapping relationship table as shown in Table 3.
  • the network device may search the foregoing table 3 according to the start time position and the time domain length of the time domain, and obtain the value of the bit sequence of the time domain resource location information. For example, when the time domain start position 2 and the time domain length are 2, the network device can find that the corresponding bit sequence value is 01110 by looking up the table. In this way, the network device can generate a DCI according to 01110 and send the DCI to the terminal device. In addition, the network device sends data to the terminal device on the time domain resource indicated by the time domain resource location information.
  • the network device may determine the value of the bit sequence of the time domain resource location information according to the coding mapping relationship, thereby generating a DCI according to the obtained bit sequence value.
  • the terminal device may perform demodulation and decoding on the DCI to obtain time domain resource location information. Then, the terminal device searches the foregoing table 3 according to the time domain resource location information to learn the time domain start location and the time domain length of the data transmission. For example, if the terminal device receives the DCI on the third time domain symbol, the bit sequence of the time domain resource location information obtained after decoding is taken as 01110, and the time domain start position is obtained according to 01110 in the above table 3. The time domain length is 2. This is described in conjunction with FIG. As shown in the left figure of FIG.
  • the terminal device can know that the time domain symbol of the transmission data is the time domain symbol 5 and time slot in the slot 1 according to the "time domain start position is 2 and the time domain length is 2".
  • Field symbol 6, then receives data on time domain symbol 5 and time domain symbol 6.
  • the terminal device receives the DCI on the third time domain symbol, the bit sequence of the time domain resource location information obtained after decoding is taken as 10000, and the time domain start position is obtained according to 10000 in Table 3 below.
  • the time domain is 4 in length.
  • the terminal device can know that the time domain symbol of the transmission data is the time domain symbol 5 in the time slot 2 according to the "time domain start position is 2 and the time domain length is 4".
  • the terminal device can consider that the DCI parsing has an error at this time, and discards the DCI, does not receive downlink data, and does not give Network device feedback information.
  • the terminal device can determine the time domain start position and the time domain length during data transmission according to the time domain resource location information and the coding mapping relationship, thereby performing data reception.
  • FIG. 9 shows a schematic block diagram of a terminal device 900 in accordance with an embodiment of the present application.
  • the terminal device 900 includes:
  • the first determining module 910 is configured to determine a bit length of the downlink control information DCI according to the location of the target first time unit in the second time unit, where the DCI includes time domain resource location information, and the time domain resource location
  • the information is used to indicate at least one of time domain start location information of the DCI scheduled data transmission and time domain length information of the third time unit, where the DCI is carried on the target first time unit,
  • the time domain length of the third time unit is less than or equal to the time domain length of the second time unit;
  • the receiving module 920 is configured to receive the DCI from the network device.
  • the time domain length information of the third time unit is used to indicate the number of the first time units included in the third time unit.
  • the first determining module 910 is specifically configured to:
  • the terminal device 900 further includes:
  • a second determining module 930 configured to determine, according to a location of the target first time unit in the second time unit, a bit length of frequency domain resource location information in the DCI, where the frequency domain resource location The information is used to indicate a frequency domain resource location used by the DCI scheduled data transmission;
  • the first determining module 910 is specifically configured to:
  • the second determining module 930 is specifically configured to:
  • the terminal device 900 may perform a method on the terminal device side in the method 200 of transmitting control information according to an embodiment of the present application, and the above and other operations and/or functions of the respective modules in the terminal device 900 are respectively.
  • the beneficial effects in the method 200 can also be implemented, and for brevity, no further details are provided herein.
  • FIG. 10 shows a schematic block diagram of a network device 1000 in accordance with an embodiment of the present application.
  • the network device 1000 includes:
  • the first determining module 1010 is configured to determine a bit length of the downlink control information DCI according to the location of the target first time unit in the second time unit, where the DCI includes time domain resource location information, and the time domain resource location
  • the information is used to indicate at least one of time domain start location information of the DCI scheduled data transmission and time domain length information of the third time unit, where the DCI is carried on the target first time unit,
  • the time domain length of the third time unit is less than or equal to the time domain length of the second time unit;
  • the generating module 1020 is configured to perform resource scheduling on the data to generate a DCI.
  • the sending module 1030 is configured to send the DCI on the target first time unit.
  • the time domain length information of the third time unit is used to indicate the number of the first time units included in the third time unit.
  • the first determining module 1010 is specifically configured to:
  • the DCI further includes frequency domain resource location information
  • the network device 1000 further includes:
  • a second determining module 1040 configured to determine, according to a location of the target first time unit in the second time unit, a bit length of frequency domain resource location information in the DCI, where the frequency domain resource location The information is used to indicate a frequency domain resource location used by the DCI scheduled data transmission.
  • the second determining module 1040 is specifically configured to:
  • the network device 1000 may perform a method on the network device side in the method 200 of transmitting control information according to an embodiment of the present application, and the above and other operations and/or functions of the respective modules in the network device 1000 are respectively.
  • the beneficial effects in the method 200 can also be implemented, and for brevity, no further details are provided herein.
  • FIG. 11 shows a schematic block diagram of a network device 1100 in accordance with an embodiment of the present application. As shown in FIG. 11, the network device 1100 includes:
  • the determining module 1110 is configured to determine a bit sequence value of the time domain resource location information according to the time domain start location and the time domain length of the data transmission, where the time domain resource location information is used to indicate the data transmission Time domain resource
  • the sending module 1120 is configured to send downlink control information DCI, where the DCI includes the time domain resource location information.
  • the determining module 1110 is specifically configured to:
  • the network device 1100 may perform a method on the network device side in the method 700 of transmitting control information according to an embodiment of the present application, and the above and other operations and/or functions of the respective modules in the network device 1100 are respectively.
  • the beneficial effects in the method 700 can also be implemented, and for brevity, no further details are provided herein.
  • FIG. 12 shows a schematic block diagram of a terminal device 1200 according to an embodiment of the present application. As shown in FIG. 12, the terminal device 1200 includes:
  • the receiving module 1210 is configured to receive downlink control information DCI, where the DCI includes time domain resource location information, where the time domain resource location information is used to indicate a time domain resource during data transmission;
  • the determining module 1220 is configured to obtain the time domain resource location information, and determine a time domain starting location and a time domain length of the data transmission according to the time domain resource location information.
  • the determining module 1220 is specifically configured to:
  • the time domain length corresponds to a value of a bit sequence value of the time domain resource location information.
  • the terminal device 1200 may perform a method on the terminal device side in the method 700 of transmitting control information according to an embodiment of the present application, and the foregoing and other operations and/or functions of the respective modules in the terminal device 1200 are respectively.
  • the beneficial effects in the method 700 can also be implemented, and for brevity, no further details are provided herein.
  • FIG. 13 shows a structure of a terminal device provided by an embodiment of the present application, including at least one processor 1302 (for example, a CPU), at least one network interface 1303 or other communication interface, and a memory 1304. Alternatively, a receiver 1305 and a transmitter 1306 can also be used.
  • the processor 1302 is configured to execute executable modules, such as computer programs, stored in the memory 1304.
  • Memory 1304 may include high speed random access memory RAM and may also include non-volatile memory, such as at least one disk memory.
  • a communication connection with at least one other network element is achieved by at least one network interface 1303 (which may be wired or wireless).
  • Receiver 1305 and transmitter 1306 are used to transmit various signals or information.
  • the memory 1304 stores a program 13041 that can be executed by the processor 1302 for performing the method on the terminal device side in the method 200 of transmitting the control information of the foregoing embodiment of the present application.
  • FIG. 14 shows a structure of a network device according to an embodiment of the present application, including at least one processor 1402 (for example, a CPU), at least one network interface 1403 or other communication interface, and a memory 1404.
  • a receiver 1405 and a transmitter 1406 are also available.
  • the processor 1402 is configured to execute executable modules, such as computer programs, stored in the memory 1404.
  • Memory 1404 may include high speed random access memory RAM and may also include non-volatile memory, such as at least one disk memory.
  • a communication connection with at least one other network element is achieved by at least one network interface 1403 (which may be wired or wireless).
  • Receiver 1405 and transmitter 1406 are used to transmit various signals or information.
  • the memory 1404 stores a program 14041 that can be executed by the processor 1402 for performing the method on the network device side of the method 200 of transmitting control information in the foregoing embodiments of the present application.
  • FIG. 15 shows a structure of a network device according to an embodiment of the present application, including at least one processor 1502 (for example, a CPU), at least one network interface 1503 or other communication interface, and a memory 1504. Alternatively, a receiver 1505 and a transmitter 1506 can also be used.
  • the processor 1502 is configured to execute an executable module, such as a computer program, stored in the memory 1504.
  • the memory 1504 may include a high speed random access memory RAM, and may also include a non-volatile memory such as at least one disk memory.
  • a communication connection with at least one other network element is achieved by at least one network interface 1503, which may be wired or wireless.
  • Receiver 1505 and transmitter 1506 are used to transmit various signals or information.
  • the memory 1504 stores a program 15041 that can be executed by the processor 1502 for performing the method on the network device side in the method 700 of transmitting the control information of the foregoing embodiment of the present application.
  • FIG. 16 shows a structure of a terminal device provided by an embodiment of the present application, including at least one processor 1602 (for example, a CPU), at least one network interface 1603 or other communication interface, and a memory 1604.
  • a receiver 1605 and a transmitter 1606 are also available.
  • the processor 1602 is configured to execute executable modules, such as computer programs, stored in the memory 1604.
  • Memory 1604 may include high speed random access memory RAM and may also include non-volatile memory, such as at least one disk memory.
  • a communication connection with at least one other network element is achieved by at least one network interface 1603 (which may be wired or wireless).
  • Receiver 1605 and transmitter 1606 are used to transmit various signals or information.
  • the memory 1604 stores a program 16041 that can be executed by the processor 1602 for performing the method on the terminal device side of the method 700 of transmitting control information in the foregoing embodiments of the present application.
  • the network device chip implements the functions of the network device in the foregoing method embodiment.
  • the network device chip transmits the DCI and downlink data to other modules in the network device, such as a radio frequency module or an antenna.
  • the DCI is sent to the terminal device via other modules of the network device.
  • the terminal device chip When the embodiment of the present application is applied to a terminal device chip, the terminal device chip implements the function of the terminal device in the foregoing method embodiment.
  • the terminal device chip receives the DCI and downlink data from other modules in the terminal device, such as a radio frequency module or an antenna, where the DCI and downlink data are sent by the network device to the terminal device.
  • 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 medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be passed from a website site, computer, server or data center Wired (eg, coaxial cable, fiber optic, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center.
  • 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, an optical medium, or a semiconductor medium or the like. For example, floppy disk, disk, tape, USB disk, mobile hard disk, solid state disk (SSD), read-only memory (ROM), random access memory (RAM), disk Or a variety of media such as optical discs that can store program code.
  • the disclosed system, apparatus, and method 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 application embodiment 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. Based on such understanding, the technical solution of the embodiments of the present application, or the part contributing to the prior art or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the embodiments of the present application.

Abstract

本申请提供了一种传输控制信息的方法、终端设备和网络设备。该方法包括:终端设备根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI的比特长度,其中,所述DCI包括时域资源位置信息,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项,其中,所述DCI承载在所述目标第一时间单元上,所述第三时间单元的时域长度小于或等于所述第二时间单元的时域长度;所述终端设备接收来自网络设备的所述DCI。本申请实施例的传输控制信息的方法,有助于减少下行控制信息DCI比特冗余,避免终端设备对不同比特长度的下行控制信息进行盲检,降低了接收机的复杂度。

Description

传输控制信息的方法、终端设备和网络设备
本申请要求于2017年6月16日提交中国专利局、申请号为201710459113.1、申请名称为“传输控制信息的方法、终端设备和网络设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域,并且更具体地,涉及一种传输控制信息的方法、终端设备和网络设备。
背景技术
为了应对未来爆炸性的移动数据流量增长、海量移动通信的设备连接、不断涌现的各类新业务和应用场景,第五代(the fifth generation,5G)移动通信系统应运而生。国际电信联盟(international telecommunication union,ITU)为5G以及未来的移动通信系统定义了三大类应用场景:增强型移动宽带(enhanced mobile broadband,eMBB)、高可靠低时延通信(ultra reliable and low latency communications,URLLC)以及海量机器类通信(massive machine type communications,mMTC)。URLLC业务对时延要求极高,不考虑可靠性的情况下,传输时延要求在0.5毫秒(millisecond,ms)以内;在达到99.999%的可靠性的前提下,传输时延要求在1ms以内。
在长期演进(long term evolution,LTE)系统中,最小的时间调度单元为一个1ms时间长度的传输时间间隔(transmission time interval,TTI)。为了满足URLLC业务的传输时延需求,无线空口的数据传输可以使用更短的时间调度单元,例如,使用迷你时隙(mini-slot)或更大的子载波间隔的时隙作为最小的时间调度单元。其中,一个mini-slot包括一个或多个时域符号,这里的时域符号可以是正交频分复用(orthogonal frequency division multiplexing,OFDM)符号。对于子载波间隔为15千赫兹(kilohertz,kHz)的一个时隙,包括6个或7个时域符号,对应的时间长度为0.5ms;对于子载波间隔为60kHz的一个时隙,对应的时间长度则缩短为0.125ms。目前,控制信息中可以包含mini-slot中数据符号的时域起始位置和数据符号的个数的相关信息。但是,现有技术中“控制信息指示mini-slot中数据符号所在的位置”的方法容易造成下行控制信息的比特长度的冗余,降低了控制信息在空口的传输效率。因此,亟需提出一种新的方法解决上述问题。
发明内容
本申请提供一种传输控制信息的方法、终端设备和网络设备,有助于减少下行控制信息DCI比特冗余,避免终端设备对不同比特长度的下行控制信息进行盲检,降低了接收机的复杂度。
第一方面,提供了一种传输控制信息的方法,包括:
终端设备根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI的比特长度,其中,所述DCI包括时域资源位置信息,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项,其中,所述DCI承载在所述目标第一时间单元上,所述第三时间单元的时域长度小于或等于所述第二时间单元的时域长度;
所述终端设备接收来自网络设备的所述DCI。
在本申请实施例中,终端设备根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI的比特长度,所述DCI包括时域资源位置信息,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项,并在所述目标第一时间单元上接收来自网络设备的所述DCI,并根据所述DCI的比特长度对所述DCI进行解调译码,能够避免终端设备对不同比特长度的DCI进行盲检,降低接收机的复杂度。
在本申请实施例中,所述DCI的比特长度,即所述DCI的载荷大小(payload size)。
可选地,所述第三时间单元的时域长度信息用于指示所述第三时间单元中包括的第一时间单元的个数。
可选地,第一时间单元、第二时间单元和第三时间单元是不同的时间粒度概念。比如,第二时间单元为时隙(slot),第三时间单元为迷你时隙(mini-slot),第一时间单元为时域符号(比如OFDM符号)。这里,第三时间单元的时域长度可以小于或等于第二时间单元的时域长度,第三时间单元中可以包括一个或多个第一时间单元,第二时间单元包括一个或多个第一时间单元。
可选地,所述第三时间单元的时域长度信息用于指示所述第三时间单元中包含的第一时间单元的个数。
在本申请实施例中,第三时间单元包含的第一时间单元中,可以包括DCI所在的第一时间单元,也可以不包括DCI所在的第一时间单元。
可选地,时域起始位置信息可以指示绝对的起始位置,例如,时域起始位置信息指示的是第一时间单元,也可以指示相对的起始位置,例如,时域起始位置信息指示的是相对于DCI所在的第一时间单元的相对起始位置。
在本申请实施例中,第三时间单元包括的第一时间单元中,可以包括DCI所在的第一时间单元,也可以不包括DCI所在的第一时间单元。另外,在第三时间单元包括DCI所在的第一时间单元的情况下,用于传输DCI的第一时间单元与用于传输数据的第一时间单元,在时间上可以连续的,也可以是不连续的,对此不作限定。进一步地,承载DCI的第一时间单元上可以承载或不承载数据。
可选地,所述时域资源位置信息可用于指示DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项。比如,所述时域资源位置信息可以用于指示DCI调度的数据传输的时域起始位置信息;或者,又比如,所述时域资源位置信息可以用于指示第三时间单元的时域长度信息;或者,又比如,所述时域资源位置信息既可用于指示DCI调度的数据传输的时域起始位置信息,同时也能指示DCI调度的数据传输的第三时间单元的时域长度信息。
在一些可能的实现方式中,所述终端设备根据目标第一时间单元在第二时间单元中的 位置,确定DCI的比特长度,包括:
所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,确定所述DCI中的时域资源位置信息的比特长度,其中,所述第一映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的时域资源位置信息的比特长度之间的对应关系;
所述终端设备根据所述DCI中的时域资源位置信息的比特长度,确定所述DCI的比特长度。
这里,第一映射关系可以用于指示所述目标第一时间单元在所述第二时间单元中的位置索引(比如符号编号或索引)与所述DCI中的时域资源位置信息的比特长度之间的对应关系。其中,第一映射关系可以包括多个对应关系,每个对应关系是:每个第一时间单元在第二时间单元中的位置索引与DCI中的时域资源位置信息的比特长度之间的对应关系。
可选地,所述第一映射关系可通过索引表或逻辑判断语句实现,实现方式比较灵活。
因此,终端设备通过目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,确定出DCI适配的时域资源位置信息的比特长度。这样,既保证了每个时间单元上的DCI的比特长度为单一的固定值,又保证了每个时间单元中的DCI的比特长度都是适配当前DCI所需的大小。因此,既能避免对不同比特长度的DCI进行盲检,降低了终端设备的接收机的复杂度,又能减少比特的冗余,提升DCI的空口传输效率。
在一些可能的实现方式中,所述DCI还包括频域资源位置信息,所述方法还包括:
所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,其中,所述频域资源位置信息用于指示所述DCI调度的数据传输所使用的频域资源位置;
进一步地,所述终端设备可以根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
在本申请实施例中,终端设备可以根据目标第一时间单元在第二时间单元中的位置,确定出DCI适配的频域资源位置信息的比特长度。这样,既保证了每个时间单元上的DCI的比特长度为单一的固定值,又保证了每个时间单元中的DCI的载荷大小都是适配当前DCI所需的大小。因此,既能避免对不同大小的DCI进行盲检,降低终端设备的接收机的复杂度,又能减少DCI的比特数,提升DCI的空口传输效率。
在一些可能的实现方式中,所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,包括:
所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定所述DCI中的频域资源位置信息的比特长度,其中,所述第二映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的频域资源位置信息的比特长度之间的对应关系。
这里,第二映射关系可以用于指示所述目标第一时间单元在所述第二时间单元中的位置索引(比如编号)与所述DCI中的频域资源位置信息的比特长度之间的对应关系。其中,第二映射关系可以包括多个对应关系,每个对应关系是:每个第一时间单元在第二时间单元中的位置索引与DCI中的频域资源位置信息的比特长度之间的对应关系。
可选地,所述第二映射关系可通过索引表或逻辑判断语句实现,实现方式比较灵活。
因此,终端设备通过目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,可以确定出DCI中的时域资源位置信息的比特长度,从而减少DCI的比特数,提高DCI的空口传输效率。
第二方面,提供了一种传输控制信息的方法,包括:
网络设备根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI的比特长度,其中,所述DCI包括时域资源位置信息,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项,其中,所述DCI承载在所述目标第一时间单元上,所述第三时间单元的时域长度小于或等于所述第二时间单元的时域长度;
所述网络设备对数据进行资源调度,生成DCI;
所述网络设备在所述目标第一时间单元上发送所述DCI,并在所述时域资源位置信息所指示的时域资源上发送所述数据。
在本申请实施例中,网络设备根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI的比特长度,所述DCI包括时域资源位置信息,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项,并在所述目标第一时间单元上接收来自网络设备的所述DCI,并向终端设备发送DCI,使得终端设备根据所述DCI的比特长度对所述DCI进行解调译码,能够避免终端设备对不同比特长度的DCI进行盲检,降低接收机的复杂度。
在本申请实施例中,所述DCI的比特长度,即所述DCI的载荷大小(payload size)。
可选地,所述第三时间单元的时域长度信息用于指示所述第三时间单元中包括的第一时间单元的个数。
可选地,第一时间单元、第二时间单元和第三时间单元是不同的时间粒度概念。比如,第二时间单元为时隙(slot),第三时间单元为迷你时隙(mini-slot),第一时间单元为时域符号(比如OFDM符号)。这里,第三时间单元的时域长度可以小于或等于第二时间单元的时域长度,第三时间单元中可以包括一个或多个第一时间单元,第二时间单元包括一个或多个第一时间单元。
可选地,所述第三时间单元的时域长度信息用于指示所述第三时间单元中包含的第一时间单元的个数。
在本申请实施例中,第三时间单元包含的第一时间单元中,可以包括DCI所在的第一时间单元,也可以不包括DCI所在的第一时间单元。
可选地,时域起始位置信息可以指示绝对的起始位置,例如,时域起始位置信息指示的是第一时间单元,也可以指示相对的起始位置,例如,时域起始位置信息指示的是相对于DCI所在的第一时间单元的相对起始位置。
在本申请实施例中,第三时间单元包括的第一时间单元中,可以包括DCI所在的第一时间单元,也可以不包括DCI所在的第一时间单元。另外,在第三时间单元包括DCI所在的第一时间单元的情况下,用于传输DCI的第一时间单元与用于传输数据的第一时间单元,在时间上可以连续的,也可以是不连续的,对此不作限定。进一步地,承载DCI的第一时间单元上可以承载或不承载数据。
可选地,所述时域资源位置信息可用于指示DCI调度的数据传输的时域起始位置信息 和第三时间单元的时域长度信息中的至少一项。比如,所述时域资源位置信息可以用于指示DCI调度的数据传输的时域起始位置信息;或者,又比如,所述时域资源位置信息可以用于指示第三时间单元的时域长度信息;或者,又比如,所述时域资源位置信息既可用于指示DCI调度的数据传输的时域起始位置信息,同时也能指示DCI调度的数据传输的第三时间单元的时域长度信息。
在一些可能的实现方式中,所述网络设备根据目标第一时间单元在第二时间单元中的位置,确定DCI中的比特长度,包括:
所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,确定所述DCI中的时域资源位置信息的比特长度,其中,所述第一映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的时域资源位置信息的比特长度之间的对应关系;
所述网络设备根据所述DCI中的时域资源位置信息的比特长度,确定所述DCI的比特长度。
这里,第一映射关系可以用于指示所述目标第一时间单元在所述第二时间单元中的位置索引(比如符号编号或索引)与所述DCI中的时域资源位置信息的比特长度之间的对应关系。其中,第一映射关系可以包括多个对应关系,每个对应关系是:每个第一时间单元在第二时间单元中的位置索引与DCI中的时域资源位置信息的比特长度之间的对应关系。
可选地,所述第一映射关系可通过索引表或逻辑判断语句实现,实现方式比较灵活。
因此,网络设备通过目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,可以确定出DCI中的时域资源位置信息的比特长度,从而确定出DCI的比特长度。
在一些可能的实现方式中,所述DCI还包括频域资源位置信息,所述方法还包括:
所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,其中,所述频域资源位置信息用于指示所述DCI调度的数据传输所使用的频域资源位置;
进一步地,所述网络设备可以根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
在本申请实施例中,网络设备可以根据目标第一时间单元在第二时间单元中的位置,确定出DCI适配的频域资源位置信息的比特长度。这样,既保证了每个时间单元上的DCI的比特长度为单一的固定值,又保证了每个时间单元中的DCI的载荷大小都是适配当前DCI所需的大小。因此,既能避免对不同大小的DCI进行盲检,降低终端设备的接收机的复杂度,又能减少DCI的比特数,提升DCI的空口传输效率。
在一些可能的实现方式中,所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,包括:
所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定所述DCI中的频域资源位置信息的比特长度,其中,所述第二映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的频域资源位置信息的比特长度之间的对应关系。
这里,第二映射关系可以用于指示所述目标第一时间单元在所述第二时间单元中的位置索引(比如编号)与所述DCI中的频域资源位置信息的比特长度之间的对应关系。其中, 第二映射关系可以包括多个对应关系,每个对应关系是:每个第一时间单元在第二时间单元中的位置索引与DCI中的频域资源位置信息的比特长度之间的对应关系。
可选地,所述第二映射关系可通过索引表或逻辑判断语句实现,实现方式比较灵活。
因此,网络设备通过目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定出DCI中的时域资源位置信息的比特长度,可以为终端设备分配合适的频域资源,比如,物理资源块PRB,并得到相应的DCI的比特长度,有助于减少DCI比特的冗余。
第三方面,提供了一种传输控制信息的方法,包括:
网络设备根据数据传输的时域起始位置和时域长度确定时域资源位置信息的比特序列取值,其中,所述时域资源位置信息用于指示所述数据传输的时域资源;
所述网络设备发送下行控制信息DCI,所述DCI包括所述时域资源位置信息。
在本申请实施例中,网络设备可以根据数据传输时的时域起始位置和所述时域长度,共同确定时域资源位置信息的比特序列取值,可以减少DCI的比特长度。
在一些可能的实现方式中,所述网络设备根据数据传输的时域起始位置和时域长度确定时域资源位置信息的比特序列取值,包括:
所述网络设备根据所述数据传输的时域起始位置和所述时域长度以及编码映射关系,确定所述时域资源位置信息的比特序列取值,所述编码映射关系用于指示所述数据传输时的时域起始位置和所述时域长度,与所述时域资源位置信息的比特序列取值之间的对应关系。
可选地,所述编码映射关系可通过索引表或逻辑判断语句实现,实现方式比较灵活。
因此,网络设备可以根据数据传输的时域起始位置和所述时域长度以及编码映射关系,确定所述时域资源位置信息的比特序列取值,从而根据得到的比特序列取值生成DCI。
第四方面,提供了一种传输控制信息的方法,包括:
终端设备接收下行控制信息DCI,所述DCI包括时域资源位置信息,其中,所述时域资源位置信息用于指示数据传输的时域资源;
所述终端设备获取所述时域资源位置信息,并根据所述时域资源位置信息确定所述数据传输的时域起始位置和时域长度。
在本申请实施例中,终端设备获取时域资源位置信息,并根据所述时域资源位置信息确定所述数据传输的时域起始位置和时域长度,其中,网络设备是根据所述数据传输的时域起始位置和时域长度共同确定所述时域资源位置信息的比特序列取值的,可以节省DCI的比特长度。
在一些可能的实现方式中,根据时域资源位置信息确定所述数据传输时的时域起始位置和时域长度,包括:
所述终端设备根据所述时域资源位置信息以及编码映射关系,确定所述数据传输时的时域起始位置和时域长度,所述编码映射关系用于指示所述数据传输时的时域起始位置和所述时域长度,与所述时域资源位置信息的比特序列取值之间的对应关系。
可选地,所述编码映射关系可通过索引表或逻辑判断语句实现,实现方式比较灵活。
因此,终端设备可以根据所述时域资源位置信息以及编码映射关系,确定出所述数据传输时的时域起始位置和时域长度,从而进行数据传输。
第五方面,提供了一种传输控制信息的方法,包括:
终端设备根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI中的频域资源位置信息的比特长度,其中,所述频域资源位置信息用于指示所述DCI调度的数据传输所使用的频域资源位置;
进一步地,所述终端设备可以根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
在本申请实施例中,终端设备可以根据目标第一时间单元在第二时间单元中的位置,确定出DCI适配的频域资源位置信息的比特长度。这样,既保证了每个时间单元上的DCI的比特长度为单一的固定值,又保证了每个时间单元中的DCI的载荷大小都是适配当前DCI所需的大小。因此,既能避免对不同大小的DCI进行盲检,降低终端设备的接收机的复杂度,又能减少DCI的比特数,提升DCI的空口传输效率。
可选地,第一时间单元和第二时间单元是不同的时间粒度概念。比如,第二时间单元为时隙(slot),第一时间单元为时域符号(比如OFDM符号)。这里,第二时间单元包括一个或多个第一时间单元。
在一些可能的实现方式中,所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,具体包括:
所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定所述DCI中的频域资源位置信息的比特长度,其中,所述第二映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的频域资源位置信息的比特长度之间的对应关系。
可选地,所述第二映射关系可通过索引表或逻辑判断语句实现,实现方式比较灵活。
因此,终端设备可以根据目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定出DCI中的频域资源位置信息的比特长度。
第六方面,提供了一种传输控制信息的方法,包括:
网络设备根据目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,其中,所述频域资源位置信息用于指示所述DCI调度的数据传输所使用的频域资源位置;
进一步地,所述网络设备可以根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
在本申请实施例中,网络设备可以根据目标第一时间单元在第二时间单元中的位置,确定出DCI适配的频域资源位置信息的比特长度,可以为终端设备分配合适的频域资源,并得到相应的DCI的比特长度。这样,既保证了每个时间单元上的DCI的比特长度为单一的固定值,又保证了每个时间单元中的DCI的载荷大小都是适配当前DCI所需的大小。因此,既能避免对不同大小的DCI进行盲检,降低终端设备的接收机的复杂度,又能减少DCI的比特数,提升DCI的空口传输效率。
在一些可能的实现方式中,所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,具体包括:
所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定所述DCI中的频域资源位置信息的比特长度,其中,所述第二映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的频域资源 位置信息的比特长度之间的对应关系。
可选地,第一时间单元和第二时间单元是不同的时间粒度概念。比如,第二时间单元为时隙(slot),第一时间单元为时域符号(比如OFDM符号)。这里,第二时间单元包括一个或多个第一时间单元。
可选地,所述第二映射关系可通过索引表或逻辑判断语句实现,实现方式比较灵活。
因此,网络设备可以根据目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定出DCI中的频域资源位置信息的比特长度,可以为终端设备分配合适的频域资源,并得到相应的DCI的比特长度,有助于减少DCI比特的冗余。
第七方面,提供了一种终端设备,用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地,该终端设备包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的模块。
第八方面,提供了一种网络设备,用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地,该网络设备包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的模块。
第九方面,提供了一种网络设备,用于执行上述第三方面或第三方面的任意可能的实现方式中的方法。具体地,该网络设备包括用于执行上述第三方面或第三方面的任意可能的实现方式中的方法的模块。
第十方面,提供了一种终端设备,用于执行上述第四方面或第四方面的任意可能的实现方式中的方法。具体地,该终端设备包括用于执行上述第四方面或第四方面的任意可能的实现方式中的方法的模块。
第十一方面,提供了一种终端设备,用于执行上述第五方面或第五方面的任意可能的实现方式中的方法。具体地,该终端设备包括用于执行上述第五方面或第五方面的任意可能的实现方式中的方法的模块。
第十二方面,提供了一种网络设备,用于执行上述第六方面或第六方面的任意可能的实现方式中的方法。具体地,该网络设备包括用于执行上述第六方面或第六方面的任意可能的实现方式中的方法的模块。
第十三方面,提供了一种终端设备。该终端设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令,处理器用于执行该指令,通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时,该执行使得该处理器执行第一方面或第一方面的任意可能的实现方式中的方法。
第十四方面,提供了一种网络设备。该网络设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令,处理器用于执行该指令,通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时,该执行使得该处理器执行第二方面或第二方面的任意可能的实现方式中的方法。
第十五方面,提供了一种终端设备。该终端设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令,处理器用于执行该指令,通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时,该执行使得该处理器执行第三方面或第三方面的任意可能的实现方式中的方法。
第十六方面,提供了一种网络设备。该网络设备包括处理器、存储器和通信接口。处 理器与存储器和通信接口连接。存储器用于存储指令,处理器用于执行该指令,通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时,该执行使得该处理器执行第四方面或第四方面的任意可能的实现方式中的方法。
第十七方面,提供了一种终端设备。该终端设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令,处理器用于执行该指令,通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时,该执行使得该处理器执行第五方面或第五方面的任意可能的实现方式中的方法。
第十八方面,提供了一种网络设备。该网络设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令,处理器用于执行该指令,通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时,该执行使得该处理器执行第六方面或第六方面的任意可能的实现方式中的方法。
第十九方面,提供了一种计算机可读存储介质,该计算机可读存储介质存储有程序,该程序使得终端设备执行上述第一方面,及其各种实现方式中的任一种传输控制信息的方法。
第二十方面,提供了一种计算机可读存储介质,该计算机可读存储介质存储有程序,该程序使得网络设备执行上述第二方面,及其各种实现方式中的任一种传输控制信息的方法。
第二十一方面,提供了一种计算机可读存储介质,该计算机可读存储介质存储有程序,该程序使得网络设备执行上述第三方面,及其各种实现方式中的任一种传输控制信息的方法。
第二十二方面,提供了一种计算机可读存储介质,该计算机可读存储介质存储有程序,该程序使得终端设备执行上述第四方面,及其各种实现方式中的任一种传输控制信息的方法。
第二十三方面,提供了一种计算机可读存储介质,该计算机可读存储介质存储有程序,该程序使得终端设备执行上述第五方面,及其各种实现方式中的任一种传输控制信息的方法。
第二十四方面,提供了一种计算机可读存储介质,该计算机可读存储介质存储有程序,该程序使得网络设备执行上述第六方面,及其各种实现方式中的任一种传输控制信息的方法。
第二十五方面,提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述各方面及上述各方面的任意可能的实现方式中的方法。
附图说明
图1是本申请实施例应用的移动通信系统的架构示意图。
图2是根据本申请实施例的传输控制信息的方法的示意性交互图。
图3是迷你时隙的一个例子的示意图。
图4是迷你时隙的另一个例子的示意图。
图5是迷你时隙的再一个例子的示意图。
图6是迷你时隙的另一个例子的示意图。
图7是根据本申请实施例的传输控制信息的方法的示意性交互图。
图8是迷你时隙的另一个例子的示意图。
图9是根据本申请实施例的终端设备的示意性框图。
图10是根据本申请实施例的网络设备的示意性框图。
图11是根据本申请另一实施例的终端设备的示意性框图。
图12是根据本申请另一实施例的网络设备的示意性框图。
图13是根据本申请一个实施例提供的终端设备的结构框图。
图14是根据本申请一个实施例提供的网络设备的结构框图。
图15是根据本申请另一个实施例提供的网络设备的结构框图。
图16是根据本申请另一个实施例提供的终端设备的结构框图。
具体实施方式
下面将结合附图,对本申请中的技术方案进行描述。
应理解,本申请实施例的技术方案可以应用于各种通信系统,例如:长期演进(long term evolution,LTE)系统、LTE频分双工(frequency division duplex,FDD)系统、LTE时分双工(time division duplex,TDD)等目前的通信系统,以及,尤其应用于未来的5G新无线(new radio,NR)系统或5G系统或基于正交频分复用(orthogonal frequency division multiplexing,OFDM)技术的通信系统。
图1是本申请的实施例应用的移动通信系统的架构示意图。如图1所示,该移动通信系统包括核心网设备110、无线接入网设备120和至少一个终端设备(如图1中的终端设备130和终端设备140)。终端设备通过无线的方式与无线接入网设备相连,无线接入网设备通过无线或有线方式与核心网设备连接。核心网设备与无线接入网设备可以是独立的不同的物理设备,也可以是将核心网设备的功能与无线接入网设备的逻辑功能集成在同一个物理设备上,还可以是一个物理设备上集成了部分核心网设备的功能和部分的无线接入网设备的功能。终端设备可以是固定位置的,也可以是可移动的。应理解,图1只是示意图,该通信系统中还可以包括其它网络设备,比如还可以包括无线中继设备和无线回传设备(图1中未示出)。本申请的实施例对该移动通信系统中包括的核心网设备、无线接入网设备和终端设备的数量不做限定。
无线接入网设备是终端设备通过无线方式接入到该移动通信系统中的接入设备,可以是基站NodeB、演进型基站eNodeB、5G移动通信系统中的基站gNB、未来移动通信系统中的基站或WiFi系统中的接入节点等,本申请的实施例对无线接入网设备所采用的具体技术和具体设备形态不做限定。
终端设备也可以称为终端Terminal、用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端(mobile terminal,MT)等。终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。
无线接入网设备和终端设备可以部署在陆地上,包括室内或室外、手持或车载;也可以部署在水面上;还可以部署在空中的飞机、气球和人造卫星上。本申请的实施例对无线接入网设备和终端设备的应用场景不做限定。
本申请的实施例可以适用于下行信号传输,也可以适用于上行信号传输,还可以适用于设备到设备(device to device,D2D)的信号传输。对于下行信号传输,发送设备是无线接入网设备,对应的接收设备是终端设备。对于上行信号传输,发送设备是终端设备,对应的接收设备是无线接入网设备。对于D2D的信号传输,发送设备是终端设备,对应的接收设备也是终端设备。本申请的实施例对信号的传输方向不做限定。
无线接入网设备和终端设备之间以及终端设备和终端设备之间可以通过授权频谱(licensed spectrum)进行通信,也可以通过免授权频谱(unlicensed spectrum)进行通信,也可以同时通过授权频谱和免授权频谱进行通信。无线接入网设备和终端设备之间以及终端设备和终端设备之间可以通过6G兆赫(gigahertz,GHz)以下的频谱进行通信,也可以通过6GHz以上的频谱进行通信,还可以同时使用6GHz以下的频谱和6GHz以上的频谱进行通信。本申请的实施例对无线接入网设备和终端设备之间所使用的频谱资源不做限定。
图2示出了根据本申请实施例的传输控制信息的方法200的示意性交互图。例如,图2中的网络设备可以是图1中的无线接入网设备120,图2中的终端设备可以是图1中的终端设备130或终端设备140。如图2所示,所述方法200包括:
S201,网络设备确定下行控制信息(downlink control information,DCI)的比特长度,其中,所述DCI包括时域资源位置信息;
具体地,网络设备根据目标第一时间单元在第二时间单元中的位置,确定DCI中的时域资源位置信息的比特长度,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项,其中,所述DCI承载在所述目标第一时间单元上,所述第三时间单元的时域长度小于或等于所述第二时间单元的时域长度,该第三时间单元用于传输该DCI调度的数据。
可选地,第一时间单元、第二时间单元和第三时间单元是不同的时间粒度概念。比如,第二时间单元为时隙(slot),第三时间单元为迷你时隙(mini-slot),第一时间单元为时域符号(比如OFDM符号)。这里,第三时间单元的时域长度可以小于或等于第二时间单元的时域长度,第三时间单元中可以包括一个或多个第一时间单元,第二时间单元包括一个或多个第一时间单元。
可选地,所述第三时间单元的时域长度信息用于指示所述第三时间单元中包含的第一时间单元的个数。比如,一个mini-slot可以包括一个或多个时域符号。
需要说明的是,在本申请实施例中,第三时间单元包含的第一时间单元中,可以包括DCI所在的第一时间单元,也可以不包括DCI所在的第一时间单元,对此不作限定。
这里,DCI承载在所述目标第一时间单元上。应理解,所述DCI可以承载在多个第一时间单元上,这里只是以目标第一时间单元为例进行说明。可选地,所述目标第一时间单元是DCI承载的第一个第一时间单元。
举例来说,网络设备可以根据目标时域符号在时隙中的位置,确定DCI中的时域资源位置信息占用的比特长度或总比特数,其中,时域资源位置信息用于指示DCI调度的数据 传输的时域起始位置信息和/或迷你时隙的时域长度信息。
可选地,时域起始位置信息可以指示绝对的起始位置,例如,时域起始位置信息指示的是第一时间单元,也可以指示相对的起始位置,例如,时域起始位置信息指示的是相对于DCI所在的第一时间单元的相对起始位置,对此不作限定。
可选地,所述时域资源位置信息可用于指示DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项。比如,所述时域资源位置信息可以用于指示DCI调度的数据传输的时域起始位置信息;或者,又比如,所述时域资源位置信息可以用于指示第三时间单元的时域长度信息;或者,又比如,所述时域资源位置信息既可用于指示DCI调度的数据传输的时域起始位置信息,同时也能指示DCI调度的数据传输的第三时间单元的时域长度信息。
DCI可以包括很多域,例如数据的频域位置信息、调制编码方式(modulation and coding scheme,MCS)、冗余版本(redundancy version,RV)、新数据指示(new data indicator,NDI)、混合自动重传请求(hybrid automatic repeat request,HARQ)进程号等,另外还可以包括本实施例中的时域资源位置信息。
网络设备在确定了DCI中的时域资源位置信息的比特长度之后,再结合其他域的长度,可以进一步确定DCI的比特长度。
S202,网络设备对数据进行资源调度,生成DCI;
S203,终端设备确定下行控制信息DCI的比特长度,其中,所述DCI包括时域资源位置信息;
具体地,所述终端设备根据目标第一时间单元在第二时间单元中的位置,确定DCI中的时域资源位置信息的比特长度,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项,其中,所述DCI承载在所述目标第一时间单元上,所述第三时间单元的时域长度小于或等于所述第二时间单元的时域长度;
S204,网络设备在所述目标第一时间单元上发送所述DCI,并在所述时域资源位置信息所指示的时域资源上发送所述数据;
对应地,终端设备可以在所述目标第一时间单元上接收网络设备发送的所述DCI。
为了简洁,这里对于与网络设备侧类似的概念或术语的解释不作赘述。
这里,所述DCI的比特长度,即所述DCI的载荷大小(payload size)。
可选地,终端设备可以根据DCI中的时域资源位置信息的比特长度,确定出所述DCI的比特长度。
可选地,终端设备根据所述DCI的比特长度对所述DCI进行解调译码。
具体而言,终端设备可以根据目标第一时间单元在第二时间单元中的位置,确定DCI中的时域资源位置信息的比特长度。然后,终端设备可以根据DCI中的时域资源位置信息的比特长度。继而,终端设备在目标第一时间单元上接收网络设备发送的DCI,并根据DCI的比特长度对该DCI进行解调译码。这里,该DCI的比特长度适配目标第一时间单元对应的DCI所需的大小,从而减少了DCI的比特长度的浪费。
比如,若DCI中的时域资源位置信息的比特长度为4,则终端设备确定出DCI的载荷大小为(X+4)比特(bit),X为DCI中其他信息的比特长度,那么终端设备只需要检测 (X+4)bit载荷大小。而现有技术是统一采用6bit来表示时域资源位置信息的,这样会存在冗余比特的情况,降低了空口传输效率。相比于现有技术,本申请实施例所采用的传输控制信息的方法相比现有技术能够减少DCI的比特数,提高控制信息在空口的传输效率。另外,本申请实施例采用的比特长度针对特定的时域符号,DCI的比特长度是确定的,因此避免了对不同比特长度的DCI的盲检,降低了接收机的复杂度。
应理解,在本申请的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。
还应理解,在本申请实施例中,引入编号“第一”,“第二”…等,只是为了区分不同的对象,比如为了区分不同的时间单元,并不对本申请实施例构成限定。
需要说明的是:本申请实施例中的符号,如果没有特殊说明,均是指时域符号,比如OFDM时域符号。
在本申请实施例中,第三时间单元包括的第一时间单元中,可以包括DCI所在的第一时间单元,也可以不包括DCI所在的第一时间单元。另外,用于传输DCI的第一时间单元与用于传输数据的第一时间单元,在时间上可以连续的,也可以是不连续的,对此不作限定。进一步地,承载DCI的第一时间单元上可以承载或不承载数据。下面将结合图3至图6进行描述,具体以第三时间单元为迷你时隙mini-slot,第二时间单元为时隙slot,第一时间单元为时域符号进行描述。
图3示出了迷你时隙的一个例子的示意图。如图3所示,控制信息和数据信息所在的时域符号在时间上都是连续的。比如,图3中的时隙1可以用比特位图1111111表示。其中,图3中上面的两个图(包括时隙1和时隙2)表示控制信息所在的时域符号上可以发送数据,图3中下面的两个图(包括时隙3和时隙4)表示控制信息所在的时域符号上不发数据。
图4示出了迷你时隙的另一个例子的示意图。与图3的区别在于,控制信息和数据信息所在的时域符号在时间上可以是不连续的,但数据信息所在的时域符号在时间上是连续的。在图4中,时域起始位置(也可称作位置偏移offset,下文亦然)指的是控制信息所在的时域符号与数据信息所在的第一个时域符号之间的间隔;时域长度length指的是数据信息占用的时域符号的个数。如图4所示,对于时隙1或时隙2,其迷你时隙的长度为控制信息和数据信息占据的总时域符号的个数。其中,时隙1中的迷你时隙包括时域符号1、时域符号3、时域符号4和时域符号5;时隙2中的迷你时隙包括时域符号3、时域符号5和时域符号6。在图4中,时隙1中时域符号1与时域符号3之间的间隔为2;时隙1中数据信息占用的时域符号的长度为3。时隙2中时域符号3与时域符号5之间的间隔为2;时隙1中数据信息占用的时域符号的长度为2。
图5示出了迷你时隙的再一个例子的示意图。如图5所示,与图4的区别在于,控制信息和数据所在的时域符号在时间上可以是不连续的,但数据信息可以承载于控制信息所在的时域符号。在图5中,时域起始位置指的是控制信息所在的时域符号与数据信息所在的第一个时域符号之间的间隔;时域长度length指的是数据信息占用的时域符号的个数。如图5所示,对于时隙1或时隙2,其迷你时隙的长度为控制信息和数据信息占据的总时域符号的个数。其中,时隙1中的迷你时隙包括时域符号1、时域符号3、时域符号4和 时域符号5;时隙2中的迷你时隙包括时域符号3、时域符号5和时域符号6。在图5中,时隙1中时域符号1与时域符号3之间的间隔为2;时隙1中数据信息占用的时域符号的长度为3。时隙2中时域符号3与时域符号5之间的间隔为2;时隙1中数据信息占用的时域符号的长度为2。
在上述图3至图5中,迷你时隙的长度定义为控制信息和数据信息占据的总时域符号的个数。
图6示出了迷你时隙的另一个例子的示意图。如图6所示,与上述图3至图5的区别在于,迷你时隙的长度定义为全部数据信息占据的时域符号个数。在图6中,时域起始位置指的是控制信息所在的时域符号与数据信息所在的第一个时域符号之间的间隔;时域长度length指的是数据信息占用的时域符号的个数。如图6所示,对于时隙1或时隙2,其迷你时隙的长度为数据信息占据的总时域符号的个数。其中,时隙1中的迷你时隙包括时域符号3、时域符号4和时域符号5;时隙2中的迷你时隙包括时域符号5和时域符号6。在图6中,时隙1中时域符号1与时域符号3之间的间隔为2;时隙1中数据信息占用的时域符号的长度为3。时隙2中时域符号3与时域符号5之间的间隔为2;时隙1中数据信息占用的时域符号的长度为2。
应理解,这里引入图3至图6中的例子只是便于理解本申请实施例的技术方案,并不对本申请实施例的保护范围构成限定。
综上,第三时间单元中的第一时间单元之间的关系可以包括以下情况:
(1)用于承载DCI的第一时间单元与用于承载数据的第一时间单元在时间上是连续的,且用于承载DCI的第一时间单元不用于承载数据;
(2)用于承载DCI的第一时间单元与用于承载数据的第一时间单元在时间上是连续的,且用于承载DCI的第一时间单元同时可以用于承载数据;
(3)用于承载DCI的第一时间单元与用于承载数据的第一时间单元在时间上是不连续的,且用于承载DCI的第一时间单元不用于承载数据;
(4)用于承载DCI的第一时间单元与用于承载数据的第一时间单元在时间上是不连续的,且用于承载DCI的第一时间单元同时可以用于承载数据。
应理解,本申请实施例的技术方案可以适用于上述各种情况。
可选地,在本申请实施例中,通过引入“第一映射关系”,使得网络设备或终端设备可以结合第一映射关系,获知不同的时间单元对应的时域资源位置信息的比特长度,下面将具体描述。
可选地,S201可以包括:
所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,确定所述DCI中的时域资源位置信息的比特长度,其中,所述第一映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的时域资源位置信息的比特长度之间的对应关系;
其中,所述确定DCI的比特长度,包括:
所述网络设备根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
或者,可选地,所述网络设备可以根据所述目标第一时间单元在所述第二时间单元中 的位置以及第一映射关系,确定所述DCI的比特长度。
类似地,可选地,S203可以包括:
所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,确定所述DCI中的时域资源位置信息的比特长度,其中,所述第一映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的时域资源位置信息的比特长度之间的对应关系。
其中,所述确定DCI的比特长度,包括:
所述终端设备根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
或者,可选地,所述终端设备可以根据所述目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,确定所述DCI的比特长度。
在本申请实施例中,网络设备或终端设备均可以根据目标第一时间单元在第二时间单元中的位置以及第一映射关系,确定DCI中的时域资源位置信息所需的比特长度。这里,第一映射关系可以用于指示所述目标第一时间单元在所述第二时间单元中的位置索引(比如符号编号或索引)与所述DCI中的时域资源位置信息的比特长度之间的对应关系。其中,第一映射关系可以包括多个对应关系,每个对应关系是:每个第一时间单元在第二时间单元中的位置索引与DCI中的时域资源位置信息的比特长度之间的对应关系。
为了便于理解,下面以第一映射关系为下表1为例进行描述。
表1
Figure PCTCN2018091346-appb-000001
以7时域符号长度的时隙为例,在表1中,第一列(DCI符号索引Symbol index)中的索引编号是第一时间单元在第二时间单元中的位置索引;第二列是时域起始位置信息的比特长度;第三列是时域长度信息的比特长度;第四列是时域资源位置信息的比特长度;第五列是根据不同的时域资源位置信息的比特长度划分的档位,不对本申请实施例构成限定,具体实现时可以存在也可以不存在。在上述表1中,Symbol index 0-2采用的是6bit(对应档位1),Symbol index 3-4采用的是4bit(对应档位2),Symbol index 5采用的是2bit(对应档位3),Symbol index 6采用的是0bit(对应档位4)。Symbol index 6上不需要时域起始位置信息和时域长度信息。
应理解,上述第一映射关系可以预先约定好,网络设备和终端设备均可以获知。
还应理解,上述只是以表1为例进行说明,并不对本申请实施例构成限定,本领域技术人员可以对上述表1进行重组或变换以适应实际需要。
还应理解,上述只是以第一映射关系为上述表1为例进行说明,并不对本申请实施例构成限定,本领域技术人员可以对上述表1进行重组或变换以适用实际需要。换言之,上述查表方式只是一种具体的实现方式,本领域技术人员可以通过其他实现方式实现上述联合编码,比如,通过C语言、C++语言、VB语言、JAVA语言等编码方式实现上述编码。具体比如,本领域技术人员可以仅通过if…else语句、for语句、while语句实现上述映射关系中的各种可能性,而无需引入如表1所示的映射关系表。
举例来说,网络设备可以根据Symbol index查找上述第一映射关系,获知DCI中的时域资源位置信息的总比特长度、该DCI调度的数据传输的时域起始位置的比特长度和数据符号的比特长度。比如,Symbol index为3时,网络设备通过第一映射关系可知:DCI中的时域资源位置信息的比特长度为4bit,时域起始位置信息的比特长度为2bit,时域长度信息的比特长度为2bit。这样,网络设备对数据进行资源调度,并生成DCI,然后在Symbol index为3的时域符号上发送该DCI,并在对应的数据符号上发送数据。
举例来说,终端设备可以根据Symbol index查找上述第一映射关系,获知DCI中的时域资源位置信息的总比特长度、该DCI调度的数据传输的时域起始位置的比特长度和数据符号的比特长度。进一步地,终端设备可以确定出DCI的比特长度。比如,Symbol index为3时,终端设备通过第一映射关系可知:DCI中的时域资源位置信息的比特长度为4bit,时域起始位置信息的比特长度为2bit,时域长度信息的比特长度的长度为2bit。终端设备可以得知DCI的比特长度为4bit。这样,终端设备可以在Symbol index为3的时域符号上接收网络设备发送的该DCI,并根据DCI的比特长度进行检测译码,可以得到该DCI实际传输的时域起始位置以及时域长度(比如,数据符号的个数)。
可选地,在本申请实施例中,还可以将部分符号中DCI多出的几个未使用的bit作为预留比特reserved bit,以预留给其他可能的用途。其中,终端设备根据Symbol index可以获知接收的DCI中是否存在reserved bit,并不会影响终端设备的接收。应理解,这里只是说明了一种可能的情况,即某些DCI中可能存在reserved bit,但并不对本申请实施例构成限定。
综上,网络设备或终端设备通过Symbol index以及第一映射关系,可以确定出DCI中的时域资源位置信息的比特长度。
在本申请实施例中,终端设备可以根据目标第一时间单元在第二时间单元中的位置,确定出DCI适配的时域资源位置信息的比特长度。这样,既保证了每个时间单元上的DCI的比特长度为单一的固定值,又保证了每个时间单元中的DCI的比特长度都是适配当前DCI所需的大小。因此,既能避免对不同比特长度的DCI进行盲检,降低了终端设备的接收机的复杂度,又能减少比特的冗余,提升DCI的空口传输效率。
上面描述了网络设备或终端设备可以根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI中的时域资源位置信息的比特长度的实施例。与所调度的数据有关的信息还可以包括频域资源位置信息,下面将提供与“频域资源位置信息”相关的实施例。应理解,本领域人员可以获知,“频域资源位置信息”的实施例可以与“时域资源位置信息”的实施例(包括上述方法200)结合使用,也可以单独实施,对此不作限定。下面将对该实施例进行具体描述,对于网络设备侧,该实施例可以包括:
网络设备根据目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频 域资源位置信息的比特长度,其中,所述频域资源位置信息用于指示所述DCI调度的数据传输所使用的频域资源位置;
进一步地,所述网络设备可以根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
可选地,所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,具体包括:
所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定所述DCI中的频域资源位置信息的比特长度,其中,所述第二映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的频域资源位置信息的比特长度之间的对应关系。
具体而言,网络设备可以根据目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定出DCI中的频域资源位置信息的比特长度,可以为终端设备分配合适的频域资源,比如,物理资源块(physical resource block,PRB),并得到相应的DCI的比特长度,有助于减少DCI比特的冗余。
对应地,对于终端设备侧,该实施例可以包括:
终端设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,其中,所述频域资源位置信息用于指示所述DCI调度的数据传输所使用的频域资源位置;
进一步地,所述终端设备可以根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
可选地,所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,具体包括:
所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定所述DCI中的频域资源位置信息的比特长度,其中,所述第二映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的频域资源位置信息的比特长度之间的对应关系。
具体而言,终端设备可以根据目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定出DCI中的频域资源位置信息的比特长度,从而减少DCI的比特数,提高DCI的空口传输效率。
在本申请实施例中,通过引入“第二映射关系”,使得网络设备或终端设备可以结合第二映射关系,获知不同的时间单元对应的频域资源位置信息的比特长度,下面将具体描述。
这里,第二映射关系可以用于指示所述目标第一时间单元在所述第二时间单元中的位置索引(比如编号)与所述DCI中的频域资源位置信息的比特长度之间的对应关系。其中,第二映射关系可以包括多个对应关系,每个对应关系是:每个第一时间单元在第二时间单元中的位置索引与DCI中的频域资源位置信息的比特长度之间的对应关系。
为了便于理解,下面以第二映射关系为下表2为例进行描述。
表2
Figure PCTCN2018091346-appb-000002
Figure PCTCN2018091346-appb-000003
以7时域符号长度的时隙为例,在表2中,第一列(DCI符号索引Symbol index)中的索引编号是第一时间单元在第二时间单元中的位置索引;第二列是可调度的数据的最大长度;第三列是频域资源调度粒度;第四列是DCI中的频域资源位置信息的比特长度(也称作频域位置信息域所需的比特数)。
对于第三列和第四列,假定单位时频资源块(比如,a个符号*b个子载波的时频块,其中,a,b为整数)的可用资源是固定的,那么mini-slot的长度越短,符号数目就越少,单位时频资源块的频域粒度就越大,也就意味着在相同带宽下频域位置信息域所需的bit数就越少。举例来说,以20MHz系统带宽为例,子载波间隔15KHz,共有100个PRB,比如,若Symbol index 0对应的PRB个数是8,则对应的总比特位的取值为13,即100对8向上取整得到的整数。在上述第二映射关系中,symbol index越小,意味着该symbol上可以调度的数据的最大长度越大,那么频域位置信息域所需的比特数就越多,反之,symbol index越大,该symbol上可以调度的数据的最大长度越小,频域位置信息域所需的比特数越少。
应理解,上述表2中引入第二列和第三列的内容只是为了推导出第四列,因此上述表2的实质内容可以只有第一列和第四列的内容,对此不作限定。
还应理解,上述第二映射关系可以预先约定好,网络设备和终端设备均可以获知。
还应理解,上述只是以表2中为例进行说明,并不对本申请实施例构成限定,本领域技术人员可以对上述表2进行重组或变换以适用实际需要。
还应理解,上述只是以第二映射关系为上述表2为例进行说明,并不对本申请实施例构成限定,本领域技术人员可以对上述表2进行重组或变换以适用实际需要。换言之,上述查表方式只是一种具体的实现方式,本领域技术人员可以通过其他实现方式实现上述联合编码,比如,通过C语言、C++语言、VB语言、JAVA语言等编码方式实现上述编码。具体比如,本领域技术人员可以仅通过if…else语句、for语句、while语句实现上述映射关系中的各种可能性,而无需引入如表2所示的映射关系表。
举例来说,网络设备可以根据Symbol index查找上述表2,获知该DCI中的频域资源位置信息的比特长度。比如,Symbol index为0时,网络设备通过表2可知该DCI中的频域资源位置信息的总比特长度为13。这样,网络设备对数据进行资源调度,并生成DCI,然后在Symbol index为0的时域符号上,使用相应的PRB发送该DCI,并在对应的数据符号上发送数据。
举例来说,终端设备可以根据Symbol index查找上述第二映射关系,获知DCI中的频域资源位置信息的总比特长度。比如,Symbol index为0时,终端设备通过第二映射关系可知该DCI中的频域资源位置信息的总比特长度为13。这样,终端设备在Symbol index 为0的时域符号上,使用相应的PRB接收该DCI,并在对应的数据符号上接收数据。
综上,网络设备或终端设备通过Symbol index以及第二映射关系,可以确定出DCI中的频域资源位置信息的比特长度。
在本申请实施例中,终端设备可以根据目标第一时间单元在第二时间单元中的位置,确定出DCI适配的频域资源位置信息的比特长度。这样,既保证了每个时间单元上的DCI的比特长度为单一的固定值,又保证了每个时间单元中的DCI的载荷大小都是适配当前DCI所需的大小。因此,既能避免对不同大小的DCI进行盲检,降低终端设备的接收机的复杂度,又能减少DCI的比特数,提升DCI的空口传输效率。
本申请还提供一种实施例,采用联合编码的方式对数据传输时的时域起始位置和时域长度进行联合编码。下面将结合图7进行描述。图7示出了根据本申请实施例的传输控制信息的方法700的示意性交互图。例如,图7中的网络设备可以是图1中的无线接入网设备120,图7中的终端设备可以是图1中的终端设备130或终端设备140。如图7所示,所述方法700包括:
S701,网络设备根据数据传输时的时域起始位置和时域长度,确定时域资源位置信息的比特序列取值,其中,所述时域资源位置信息用于指示所述数据传输时的时域资源;
可选地,在S701之前,网络设备可以对数据进行资源调度,确定所述数据传输时的时域起始位置和时域长度;
可选地,时域起始位置信息可以指示绝对的起始位置,也可以指示相对的起始位置,对此不作限定。
可选地,所述网络设备根据所述比特序列取值生成下行控制信息DCI;
S702,网络设备发送所述下行控制信息DCI;
可选地,所述网络设备可以在所述时域资源位置信息所指示的时域资源上发送所述数据;
对应地,终端设备接收下行控制信息DCI;
可选地,终端设备对所述DCI进行解调译码,所述DCI中包括时域资源位置信息,其中,所述时域资源位置信息用于指示数据传输时的时域资源。
S703,终端设备获取时域资源位置信息,并根据所述时域资源位置信息确定所述数据传输时的时域起始位置和时域长度。
可选地,所述终端设备在所述时域起始位置和时域长度所对应的时域资源上接收所述数据。
具体而言,网络设备对数据进行资源调度时,可以确定出数据传输的时域起始位置和时域长度,然后再根据数据传输的时域起始位置和时域长度确定时域资源位置信息的比特序列取值,其中,所述时域资源位置信息用于指示该数据传输时的时域资源。接着,网络设备可以根据比特序列取值生成DCI,并向终端设备发送该DCI,以及在时域资源位置信息指示的时域资源上发送数据。相应地,终端设备在接收到网络设备发送的该DCI后,对该DCI进行解调译码,以得到时域资源位置信息。终端设备可以根据该时域资源位置信息,确定出数据传输的时域起始位置和时域长度,以便于在该时域起始位置和时域长度对应的时域资源上接收数据。
在本申请实施例中,网络设备可以根据数据传输时的时域起始位置和所述时域长度, 共同确定时域资源位置信息的比特序列取值,即比特序列是针对“时域起始位置”和“时域长度”的联合比特。本申请实施例的联合编码方式可以保持每个时间单元上的DCI的比特长度是相同的。举例来说,对于URLLC业务,本申请实施例的联合编码方式对DCI的比特长度进行了优化,可以采用较小的比特长度。相比于现有技术中DCI需要使用(X+6)bit,其中,X指DCI中其他信息的比特长度,本申请实施例中DCI的比特长度可以为(X+Y)bit,其中,Y小于6,Y是可以预设的。因此,本申请实施例的技术方案可以减少DCI的长度。
可选地,在本申请实施例中,通过引入“编码映射关系”,使得网络设备或终端设备可以结合编码映射关系,获知数据传输时的时域起始位置和所述时域长度所对应的时域资源位置信息的比特序列取值,下面将具体描述。
可选地,S701可以包括:
所述网络设备根据所述数据传输时的时域起始位置和所述时域长度以及编码映射关系,确定所述时域资源位置信息的比特序列取值,所述编码映射关系用于指示所述数据传输时的时域起始位置和所述时域长度,与所述时域资源位置信息的比特序列取值之间的对应关系。
其中,编码映射关系可以包括多个对应关系,每个对应关系是:数据传输时的时域起始位置和时域长度与所述时域资源位置信息的比特序列取值之间的对应关系。下文终端设备侧所使用的编码映射关系亦然,为了简洁,将不作赘述。
类似地,可选地,S702可以包括:
所述终端设备根据所述时域资源位置信息以及编码映射关系,确定所述数据传输时的时域起始位置和时域长度,所述编码映射关系用于指示所述数据传输时的时域起始位置和所述时域长度,与所述时域资源位置信息的比特序列取值之间的对应关系。
为了便于理解,下面以编码映射关系为下表3为例进行描述。
表3
Figure PCTCN2018091346-appb-000004
Figure PCTCN2018091346-appb-000005
以7时域符号长度的时隙为例,在表3中,可以采用联合编码的方式,比如,可以采用5bit进行联合编码,且每个时域起始位置对应的时域资源位置信息的比特长度均为5bit。在表3中,第一列是数据传输时的时域起始位置(也可称作位置偏移offset);第二列是数据传输的时域长度;第三列是联合编码后的比特序列取值。在表3下方,可以预留出一些比特序列取值作为预留值Reserved value,以便于用作其他可能的用途。
应理解,上述编码映射关系可以预先约定好,网络设备和终端设备均可以获知。
还应理解,上述只是以编码映射关系为上述表3为例进行说明,并不对本申请实施例构成限定,本领域技术人员可以对上述表3进行重组或变换以适用实际需要。换言之,上述查表方式只是一种具体的实现方式,本领域技术人员可以通过其他实现方式实现上述联合编码,比如,通过C语言、C++语言、VB语言、JAVA语言等编码方式实现上述编码。具体比如,本领域技术人员可以仅通过if…else语句、for语句、while语句实现上述编码映射关系中的各种可能性,而无需引入如表3所示的编码映射关系表。
举例来说,网络设备在确定时域起始位置和时域长度后,可以根据时域起始位置和时域长度查找上述表3,获知时域资源位置信息的比特序列取值。比如,在确定出时域起始位置2和时域长度为2时,网络设备通过查表可以得知对应的比特序列取值为01110。这样,网络设备可以根据01110生成DCI,并将DCI发送给终端设备。另外,网络设备在时域资源位置信息指示的时域资源上向终端设备发送数据。
换言之,网络设备可以根据编码映射关系确定出时域资源位置信息的比特序列取值,从而根据得到的比特序列取值生成DCI。
举例来说,终端设备在接收到网络设备发送的DCI后,可以对DCI进行解调解码,以获取时域资源位置信息。然后,终端设备根据时域资源位置信息查找上述表3,以获知数据传输的时域起始位置和时域长度。比如,若终端设备在第三个时域符号上接收到DCI,译码后得到时域资源位置信息的比特序列取值为01110,根据01110在上述表3中得到时 域起始位置为2,时域长度为2。这里结合图8描述。如图8中的左图所示的情况,终端设备根据“时域起始位置为2,时域长度为2”可知,传输数据的时域符号为时隙1中的时域符号5和时域符号6,然后在时域符号5和时域符号6上接收数据。又比如,若终端设备在第三个时域符号上接收到DCI,译码后得到时域资源位置信息的比特序列取值为10000,根据10000在上述表3中得到时域起始位置为2,时域长度为4。如图8中的右图所示的情况,终端设备根据“时域起始位置为2,时域长度为4”可知,传输数据的时域符号为时隙2中的时域符号5、时域符号6、时域符号7和时域符号8。但是目前mini-slot不能跨slot调度的,即时域符号8不能被调度,那么终端设备可以认为此时的DCI解析发生了错误,并丢弃这次的DCI,不进行下行数据的接收,也不给网络设备反馈信息。
因此,终端设备可以根据时域资源位置信息以及编码映射关系,确定出数据传输时的时域起始位置和时域长度,从而进行数据的接收。
需要说明的是,上述方法700也可以与前文所述的“频域资源位置信息”的实施例进行组合使用,对此不作限定。
上文描述了根据本申请实施例的传输控制信息的方法。下文将描述根据本申请实施例的终端设备和网络设备。
图9示出了根据本申请实施例的终端设备900的示意性框图。如图9所示,所述终端设备900包括:
第一确定模块910,用于根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI的比特长度,其中,所述DCI包括时域资源位置信息,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项,其中,所述DCI承载在所述目标第一时间单元上,所述第三时间单元的时域长度小于或等于所述第二时间单元的时域长度;
接收模块920,用于接收来自网络设备的所述DCI。
可选地,所述第三时间单元的时域长度信息用于指示所述第三时间单元中包括的第一时间单元的个数。
可选地,所述第一确定模块910具体用于:
根据所述目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,确定所述DCI中的时域资源位置信息的比特长度,其中,所述第一映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的时域资源位置信息的比特长度之间的对应关系;
根据所述DCI中的时域资源位置信息的比特长度,确定所述DCI的比特长度。
可选地,所述终端设备900还包括:
第二确定模块930,用于根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,其中,所述频域资源位置信息用于指示所述DCI调度的数据传输所使用的频域资源位置;
其中,所述第一确定模块910具体用于:
根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
可选地,所述第二确定模块930具体用于:
根据所述目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定所 述DCI中的频域资源位置信息的比特长度,其中,所述第二映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的频域资源位置信息的比特长度之间的对应关系。
根据本申请实施例的终端设备900可执行根据本申请实施例的传输控制信息的方法200中终端设备侧的方法,并且所述终端设备900中的各个模块的上述和其它操作和/或功能分别为了实现前述各个方法的相应流程,因此也可以实现方法200中的有益效果,为了简洁,在此不加赘述。
图10示出了根据本申请实施例的网络设备1000的示意性框图。如图10所示,所述网络设备1000包括:
第一确定模块1010,用于根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI的比特长度,其中,所述DCI包括时域资源位置信息,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项,其中,所述DCI承载在所述目标第一时间单元上,所述第三时间单元的时域长度小于或等于所述第二时间单元的时域长度;
生成模块1020,用于对数据进行资源调度,生成DCI;
发送模块1030,用于在所述目标第一时间单元上发送所述DCI。
可选地,所述第三时间单元的时域长度信息用于指示所述第三时间单元中包括的第一时间单元的个数。
可选地,所述第一确定模块1010具体用于:
根据所述目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,确定所述DCI中的时域资源位置信息的比特长度,其中,所述第一映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的时域资源位置信息的比特长度之间的对应关系;
根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
可选地,所述DCI还包括频域资源位置信息,所述网络设备1000还包括:
第二确定模块1040,用于根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,其中,所述频域资源位置信息用于指示所述DCI调度的数据传输所使用的频域资源位置。
可选地,所述第二确定模块1040具体用于:
根据所述目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定所述DCI中的频域资源位置信息的比特长度,其中,所述第二映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的频域资源位置信息的比特长度之间的对应关系。
根据本申请实施例的网络设备1000可执行根据本申请实施例的传输控制信息的方法200中网络设备侧的方法,并且所述网络设备1000中的各个模块的上述和其它操作和/或功能分别为了实现前述各个方法的相应流程,因此也可以实现方法200中的有益效果,为了简洁,在此不加赘述。
图11示出了根据本申请实施例的网络设备1100的示意性框图。如图11所示,所述网络设备1100包括:
确定模块1110,用于根据数据传输时的时域起始位置和时域长度确定时域资源位置信息的比特序列取值,其中,所述时域资源位置信息用于指示所述数据传输时的时域资源;
发送模块1120,用于发送下行控制信息DCI,所述DCI包括所述时域资源位置信息。
可选地,所述确定模块1110具体用于:
根据所述数据传输时的时域起始位置和所述时域长度以及编码映射关系,确定所述时域资源位置信息的比特序列取值,所述编码映射关系用于指示所述数据传输时的时域起始位置和所述时域长度,与所述时域资源位置信息的比特序列取值之间的对应关系。
根据本申请实施例的网络设备1100可执行根据本申请实施例的传输控制信息的方法700中网络设备侧的方法,并且所述网络设备1100中的各个模块的上述和其它操作和/或功能分别为了实现前述各个方法的相应流程,因此也可以实现方法700中的有益效果,为了简洁,在此不加赘述。
图12示出了根据本申请实施例的终端设备1200的示意性框图。如图12所示,所述终端设备1200包括:
接收模块1210,用于接收下行控制信息DCI,所述DCI中包括时域资源位置信息,其中,所述时域资源位置信息用于指示数据传输时的时域资源;
确定模块1220,用于获取所述时域资源位置信息,并根据所述时域资源位置信息确定所述数据传输时的时域起始位置和时域长度。
可选地,所述确定模块1220具体用于:
根据所述时域资源位置信息以及编码映射关系,确定所述数据传输时的时域起始位置和时域长度,所述编码映射关系用于指示所述数据传输时的时域起始位置和所述时域长度,与所述时域资源位置信息的比特序列取值之间的对应关系。
根据本申请实施例的终端设备1200可执行根据本申请实施例的传输控制信息的方法700中终端设备侧的方法,并且所述终端设备1200中的各个模块的上述和其它操作和/或功能分别为了实现前述各个方法的相应流程,因此也可以实现方法700中的有益效果,为了简洁,在此不加赘述。
图13示出了本申请一个实施例提供的终端设备的结构,包括至少一个处理器1302(例如CPU),至少一个网络接口1303或者其他通信接口,存储器1304。可选地,还可以接收器1305和发送器1306。处理器1302用于执行存储器1304中存储的可执行模块,例如计算机程序。存储器1304可能包含高速随机存取存储器RAM,也可能还包括非不稳定的存储器(non-volatile memory),例如至少一个磁盘存储器。通过至少一个网络接口1303(可以是有线或者无线)实现与至少一个其他网元之间的通信连接。接收器1305和发送器1306用于传输各种信号或信息。
在一些实施方式中,存储器1304存储了程序13041,程序13041可以被处理器1302执行,用于执行前述本申请实施例的传输控制信息的方法200中终端设备侧的方法。
图14示出了本申请一个实施例提供的网络设备的结构,包括至少一个处理器1402(例如CPU),至少一个网络接口1403或者其他通信接口,存储器1404。可选地,还可以接收器1405和发送器1406。处理器1402用于执行存储器1404中存储的可执行模块,例如计算机程序。存储器1404可能包含高速随机存取存储器RAM,也可能还包括非不稳定的存储器(non-volatile memory),例如至少一个磁盘存储器。通过至少一个网络接口1403 (可以是有线或者无线)实现与至少一个其他网元之间的通信连接。接收器1405和发送器1406用于传输各种信号或信息。
在一些实施方式中,存储器1404存储了程序14041,程序14041可以被处理器1402执行,用于执行前述本申请实施例的传输控制信息的方法200中网络设备侧的方法。
图15示出了本申请一个实施例提供的网络设备的结构,包括至少一个处理器1502(例如CPU),至少一个网络接口1503或者其他通信接口,存储器1504。可选地,还可以接收器1505和发送器1506。处理器1502用于执行存储器1504中存储的可执行模块,例如计算机程序。存储器1504可能包含高速随机存取存储器RAM,也可能还包括非不稳定的存储器(non-volatile memory),例如至少一个磁盘存储器。通过至少一个网络接口1503(可以是有线或者无线)实现与至少一个其他网元之间的通信连接。接收器1505和发送器1506用于传输各种信号或信息。
在一些实施方式中,存储器1504存储了程序15041,程序15041可以被处理器1502执行,用于执行前述本申请实施例的传输控制信息的方法700中网络设备侧的方法。
图16示出了本申请一个实施例提供的终端设备的结构,包括至少一个处理器1602(例如CPU),至少一个网络接口1603或者其他通信接口,存储器1604。可选地,还可以接收器1605和发送器1606。处理器1602用于执行存储器1604中存储的可执行模块,例如计算机程序。存储器1604可能包含高速随机存取存储器RAM,也可能还包括非不稳定的存储器(non-volatile memory),例如至少一个磁盘存储器。通过至少一个网络接口1603(可以是有线或者无线)实现与至少一个其他网元之间的通信连接。接收器1605和发送器1606用于传输各种信号或信息。
在一些实施方式中,存储器1604存储了程序16041,程序16041可以被处理器1602执行,用于执行前述本申请实施例的传输控制信息的方法700中终端设备侧的方法。
可以理解的是,当本申请的实施例应用于网络设备芯片时,该网络设备芯片实现上述方法实施例中网络设备的功能。该网络设备芯片向网络设备中的其它模块(如射频模块或天线)发送上述DCI和下行数据。该DCI经由网络设备的其它模块发送给终端设备。
当本申请的实施例应用于终端设备芯片时,该终端设备芯片实现上述方法实施例中终端设备的功能。该终端设备芯片从终端设备中的其它模块(如射频模块或天线)接收上述DCI和下行数据,该DCI和下行数据是网络设备发送给终端设备的。
应理解,本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请实施例的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。 当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质、光介质、或者半导体介质等。比如,软盘、磁盘、磁带、U盘、移动硬盘、固态硬盘(solid state disk,SSD)、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在本申请实施例所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在申请实施例各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请实施例各个实施例所述方法的全部或部分步骤。
以上所述,仅为本申请实施例的具体实施方式,但本申请实施例的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请实施例揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请实施例的保护范围之内。因此,本申请实施例的保护范围应以所述权利要求的保护范围为准。

Claims (28)

  1. 一种传输控制信息的方法,其特征在于,包括:
    终端设备根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI的比特长度,其中,所述DCI包括时域资源位置信息,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项,其中,所述DCI承载在所述目标第一时间单元上,所述第三时间单元的时域长度小于或等于所述第二时间单元的时域长度;
    所述终端设备接收来自网络设备的所述DCI。
  2. 根据权利要求1所述的方法,其特征在于,所述第三时间单元的时域长度信息用于指示所述第三时间单元中包括的第一时间单元的个数。
  3. 根据权利要求1或2所述的方法,其特征在于,所述终端设备根据目标第一时间单元在第二时间单元中的位置,确定DCI的比特长度,包括:
    所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,确定所述DCI中的时域资源位置信息的比特长度,其中,所述第一映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的时域资源位置信息的比特长度之间的对应关系;
    所述终端设备根据所述DCI中的时域资源位置信息的比特长度,确定所述DCI的比特长度。
  4. 根据权利要求1至3中任一项所述的方法,其特征在于,所述DCI还包括频域资源位置信息,所述方法还包括:
    所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,其中,所述频域资源位置信息用于指示所述DCI调度的数据传输所使用的频域资源位置;
    其中,所述确定DCI的比特长度,包括:
    所述终端设备根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
  5. 根据权利要求4所述的方法,其特征在于,所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,包括:
    所述终端设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定所述DCI中的频域资源位置信息的比特长度,其中,所述第二映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的频域资源位置信息的比特长度之间的对应关系。
  6. 一种传输控制信息的方法,其特征在于,包括:
    网络设备根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI的比特长度,其中,所述DCI包括时域资源位置信息,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一 项,其中,所述DCI承载在所述目标第一时间单元上,所述第三时间单元的时域长度小于或等于所述第二时间单元的时域长度;
    所述网络设备对数据进行资源调度,生成DCI;
    所述网络设备在所述目标第一时间单元上发送所述DCI。
  7. 根据权利要求6所述的方法,其特征在于,所述第三时间单元的时域长度信息用于指示所述第三时间单元中包括的第一时间单元的个数。
  8. 根据权利要求6或7所述的方法,其特征在于,所述网络设备根据目标第一时间单元在第二时间单元中的位置,确定DCI的比特长度,包括:
    所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,确定所述DCI中的时域资源位置信息的比特长度,其中,所述第一映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的时域资源位置信息的比特长度之间的对应关系;
    所述网络设备根据所述DCI中的时域资源位置信息的比特长度,确定所述DCI的比特长度。
  9. 根据权利要求6至8中任一项所述的方法,其特征在于,所述DCI还包括频域资源位置信息,所述方法还包括:
    所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,其中,所述频域资源位置信息用于指示所述DCI调度的数据传输所使用的频域资源位置;
    其中,所述确定DCI的比特长度,包括:
    所述网络设备根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
  10. 根据权利要求9所述的方法,其特征在于,所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,包括:
    所述网络设备根据所述目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定所述DCI中的频域资源位置信息的比特长度,其中,所述第二映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的频域资源位置信息的比特长度之间的对应关系。
  11. 一种传输控制信息的方法,其特征在于,包括:
    网络设备根据数据传输的时域起始位置和时域长度确定时域资源位置信息的比特序列取值,其中,所述时域资源位置信息用于指示所述数据传输的时域资源;
    所述网络设备发送下行控制信息DCI,所述DCI包括所述时域资源位置信息。
  12. 根据权利要求11所述的方法,其特征在于,所述网络设备根据数据传输的时域起始位置和时域长度确定时域资源位置信息的比特序列取值,包括:
    所述网络设备根据所述数据传输的时域起始位置和所述时域长度以及编码映射关系,确定所述时域资源位置信息的比特序列取值,所述编码映射关系用于指示所述数据传输时的时域起始位置和所述时域长度,与所述时域资源位置信息的比特序列取值之间的对应关系。
  13. 一种传输控制信息的方法,其特征在于,包括:
    终端设备接收下行控制信息DCI,所述DCI包括时域资源位置信息,其中,所述时域资源位置信息用于指示数据传输的时域资源;
    所述终端设备获取所述时域资源位置信息,并根据所述时域资源位置信息确定所述数据传输的时域起始位置和时域长度。
  14. 根据权利要求13所述的方法,其特征在于,所述根据时域资源位置信息确定所述数据传输时的时域起始位置和时域长度,包括:
    所述终端设备根据所述时域资源位置信息以及编码映射关系,确定所述数据传输时的时域起始位置和时域长度,所述编码映射关系用于指示所述数据传输时的时域起始位置和所述时域长度,与所述时域资源位置信息的比特序列取值之间的对应关系。
  15. 一种终端设备,其特征在于,包括:
    第一确定模块,用于根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI的比特长度,其中,所述DCI包括时域资源位置信息,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项,其中,所述DCI承载在所述目标第一时间单元上,所述第三时间单元的时域长度小于或等于所述第二时间单元的时域长度;
    接收模块,用于接收来自网络设备的所述DCI。
  16. 根据权利要求15所述的终端设备,其特征在于,所述第三时间单元的时域长度信息用于指示所述第三时间单元中包括的第一时间单元的个数。
  17. 根据权利要求15或16所述的终端设备,其特征在于,所述第一确定模块具体用于:
    根据所述目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,确定所述DCI中的时域资源位置信息的比特长度,其中,所述第一映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的时域资源位置信息的比特长度之间的对应关系;
    根据所述DCI中的时域资源位置信息的比特长度,确定所述DCI的比特长度。
  18. 根据权利要求15至17中任一项所述的终端设备,其特征在于,所述DCI还包括频域资源位置信息,所述终端设备还包括:
    第二确定模块,用于根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,其中,所述频域资源位置信息用于指示所述DCI调度的数据传输所使用的频域资源位置;
    其中,所述第一确定模块具体用于:
    根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
  19. 根据权利要求18所述的终端设备,其特征在于,所述第二确定模块具体用于:
    根据所述目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定所述DCI中的频域资源位置信息的比特长度,其中,所述第二映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的频域资源位置信息的比特长度之间的对应关系。
  20. 一种网络设备,其特征在于,包括:
    第一确定模块,用于根据目标第一时间单元在第二时间单元中的位置,确定下行控制信息DCI的比特长度,其中,所述DCI包括时域资源位置信息,所述时域资源位置信息用于指示所述DCI调度的数据传输的时域起始位置信息和第三时间单元的时域长度信息中的至少一项,其中,所述DCI承载在所述目标第一时间单元上,所述第三时间单元的时域长度小于或等于所述第二时间单元的时域长度;
    生成模块,用于对数据进行资源调度,生成DCI;
    发送模块,用于在所述目标第一时间单元上发送所述DCI。
  21. 根据权利要求20所述的网络设备,其特征在于,所述第三时间单元的时域长度信息用于指示所述第三时间单元中包括的第一时间单元的个数。
  22. 根据权利要求20或21所述的网络设备,其特征在于,所述第一确定模块具体用于:
    根据所述目标第一时间单元在所述第二时间单元中的位置以及第一映射关系,确定所述DCI中的时域资源位置信息的比特长度,其中,所述第一映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的时域资源位置信息的比特长度之间的对应关系;
    根据所述DCI中频域资源位置信息的比特长度,确定所述DCI的比特长度。
  23. 根据权利要求20至22中任一项所述的网络设备,其特征在于,所述DCI还包括频域资源位置信息,所述网络设备还包括:
    第二确定模块,用于根据所述目标第一时间单元在所述第二时间单元中的位置,确定所述DCI中的频域资源位置信息的比特长度,其中,所述频域资源位置信息用于指示所述DCI调度的数据传输所使用的频域资源位置。
  24. 根据权利要求23所述的网络设备,其特征在于,所述第二确定模块具体用于:
    根据所述目标第一时间单元在所述第二时间单元中的位置以及第二映射关系,确定所述DCI中的频域资源位置信息的比特长度,其中,所述第二映射关系用于指示所述目标第一时间单元在所述第二时间单元中的位置索引与所述DCI中的频域资源位置信息的比特长度之间的对应关系。
  25. 一种网络设备,其特征在于,包括:
    确定模块,用于根据数据传输时的时域起始位置和时域长度确定时域资源位置信息的比特序列取值,其中,所述时域资源位置信息用于指示所述数据传输时的时域资源;
    发送模块,用于发送下行控制信息DCI,所述DCI包括所述时域资源位置信息。
  26. 根据权利要求25所述的网络设备,其特征在于,所述确定模块具体用于:
    根据所述数据传输时的时域起始位置和所述时域长度以及编码映射关系,确定所述时域资源位置信息的比特序列取值,所述编码映射关系用于指示所述数据传输时的时域起始位置和所述时域长度,与所述时域资源位置信息的比特序列取值之间的对应关系。
  27. 一种终端设备,其特征在于,包括:
    接收模块,用于接收下行控制信息DCI,所述DCI中包括时域资源位置信息,其中,所述时域资源位置信息用于指示数据传输时的时域资源;
    确定模块,用于获取所述时域资源位置信息,并根据所述时域资源位置信息确定所述数据传输时的时域起始位置和时域长度。
  28. 根据权利要求27所述的终端设备,其特征在于,所述确定模块具体用于:
    根据所述时域资源位置信息以及编码映射关系,确定所述数据传输时的时域起始位置和时域长度,所述编码映射关系用于指示所述数据传输时的时域起始位置和所述时域长度,与所述时域资源位置信息的比特序列取值之间的对应关系。
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