WO2022027205A1 - 一种短距离通信方法、装置及系统 - Google Patents

一种短距离通信方法、装置及系统 Download PDF

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Publication number
WO2022027205A1
WO2022027205A1 PCT/CN2020/106669 CN2020106669W WO2022027205A1 WO 2022027205 A1 WO2022027205 A1 WO 2022027205A1 CN 2020106669 W CN2020106669 W CN 2020106669W WO 2022027205 A1 WO2022027205 A1 WO 2022027205A1
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data
encoded
block
encoded data
type indication
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PCT/CN2020/106669
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English (en)
French (fr)
Inventor
高磊
程型清
王键
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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 PCT/CN2020/106669 priority Critical patent/WO2022027205A1/zh
Priority to PCT/CN2021/076947 priority patent/WO2022027954A1/zh
Priority to CN202180059432.8A priority patent/CN116349171B/zh
Priority to JP2023507387A priority patent/JP2023536186A/ja
Priority to EP21853838.7A priority patent/EP4187822A4/en
Publication of WO2022027205A1 publication Critical patent/WO2022027205A1/zh
Priority to US18/164,322 priority patent/US20230179329A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H04L1/0058—Block-coded modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a short-distance communication method, device, and system.
  • DCI Downlink control information
  • Transport Block Transport Block
  • a transport block is divided into multiple coding blocks or coding block groups, and a coding block group contains one or more coding blocks.
  • the sender sends a transport block to the receiver, and the receiver will feedback whether the coding block or coding block group is received correctly according to the reception situation. Or encoding block groups.
  • the data sent by the sender each time is either a new transmission block, or a coding block or coding block group in which a transmission error occurs.
  • the available bandwidth of the system is relatively large, such as 20MHz or 80MHz, and the number of users supported at the same time is relatively small, so for a certain user, the transmission block is relatively large.
  • the transmission block is relatively large.
  • only individual coding blocks or coding block groups may have transmission errors. Therefore, during retransmission, only sending the coding blocks with transmission errors or the coding block groups with transmission errors will cause a serious waste of resources.
  • the present application provides a short-distance communication method, device and system to reduce waste of resources.
  • an embodiment of the present application provides a short-range communication method.
  • the method may be executed by a first device, or may be executed by a component of the first device (for example, a processor, a chip, or a chip system, etc.), including: obtaining at least one piece of encoded data; sending a scheduling type indication and a data type indication to the second device, where the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data, retransmission data, or initial transmission data and retransmission data,
  • the data type indication is used to indicate location information and/or quantity of part or all of the at least one encoded data; and sending the at least one encoded data to the second device.
  • the at least one encoded data includes at least one encoding block group
  • the data type indicates position information and/or quantity used to indicate part or all of the encoding block groups in the at least one encoding block group.
  • the coded data is transmitted at the granularity of the coded block group, which can improve the efficiency of data transmission.
  • the at least one encoded data includes at least one transport block data and at least one encoded block data
  • the at least one transport block data is initial transmission data
  • the at least one encoded block data is retransmission data
  • the at least one encoded block data is retransmission data.
  • the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data and retransmission data.
  • At least one transport block data includes one or more initially transmitted coded blocks, or includes one or more initially transmitted coded block groups. At least one coded block data contains one or more retransmission coded blocks, or contains one or more retransmission coded block groups.
  • At least one transport block data and at least one encoding block data can be simultaneously transmitted, thereby improving resource utilization and reducing resource waste.
  • the data type indication is a bitmap
  • the bitmap contains N bits
  • the N is pre-configured or pre-defined or signaled
  • the value of N is used to indicate The maximum value of the number of coded block groups included in a transport block
  • N is an integer greater than 1
  • the bitmap is used to indicate the position information and/or quantity of the at least one coded data.
  • the data type indication is implemented in the form of a bitmap, which is simple and flexible to implement.
  • the data type indication is a bitmap
  • the bitmap contains N bits
  • the N is pre-configured or pre-defined or signaled
  • the value of N is used to indicate The maximum value of the number of coding block groups included in a transport block
  • N is an integer greater than 1
  • the bitmap is used to indicate the position information and/or quantity of the at least one coding block data.
  • the data type indication is implemented in the form of a bitmap, which is simple and flexible to implement.
  • indication information is sent to the second device, where the indication information is used to indicate the location information and/or quantity of the at least one transport block data, and the quantity of the at least one transport block data is the at least one transport block data.
  • the number of encoded block groups in the transport block data is sent to the second device, where the indication information is used to indicate the location information and/or quantity of the at least one transport block data, and the quantity of the at least one transport block data is the at least one transport block data.
  • the indication information indicates the quantity of the initially transmitted data, so that the second device can accurately determine the quantity of the initially transmitted data, and the second device can accurately determine the type of the encoded data.
  • the number, location information and size of the encoding block group included in the at least one encoding block data are the same as the number, location information and The size corresponds to the same.
  • the retransmission data includes the number, location information and size of the encoding block group, which correspond to the same number, location information and size of the encoding block group included in the initial transmission of the retransmission data, ensuring that the retransmission data is repeated.
  • the transmission data is sent correctly, and the realization is relatively simple.
  • the location information and size of the encoding block group included in the at least one transmission block data are the same as the location information and size of the encoding block group included in the encoded data successfully transmitted in the last transmitted encoded data.
  • the location information and size of the encoding block group included in the at least one transmission block data are the same as the location information and size of the encoding block group included in the partial encoded data in the encoded data that was successfully transmitted last time.
  • the location information and size of the encoding block group included in the initial transmission data are the same as the location information and size of the encoding block group included in the encoded data that was successfully transmitted in the encoded data transmitted last time, or the same as that in the last successful transmission.
  • the position information and size of the coding block groups included in some of the coded data in the coded data are the same, which is relatively simple to implement, and is conducive to improving the transmission performance.
  • the size and quantity of the coding block group included in the at least one transport block data are determined according to the physical resources used for the at least one coded data and the modulation and coding scheme.
  • the at least one encoded data includes at least one transport block data, the at least one transport block data is initial transmission data, and the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data; or
  • the at least one encoded data includes at least one encoded block data, the at least one encoded block data is retransmission data, and the scheduling type indication is used to indicate that the at least one encoded data includes retransmission data.
  • sending the at least one encoded data to the second device includes: mapping the at least one encoded data to a first physical resource and sending it to the second device, where the at least one encoded data includes The mapping manner in which the coding block or the coding block group is mapped to the first physical resource satisfies a predefined transport block mapping rule.
  • an embodiment of the present application provides a short-range communication method, which can be executed by a second device, or can be executed by a component of the second device (for example, a processor, a chip, or a chip system, etc.), including: receiving At least one encoded data from the first device; and receiving a scheduling type indication and a data type indication from the first device, where the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data, includes retransmission data, or includes initial transmission data.
  • transmission data and retransmission data the data type indicates the location information and/or quantity used to indicate part or all of the encoded data in the at least one encoded data; obtain the at least one encoded data according to the scheduling type indication and the data type indication data.
  • the encoded data received from the first device is determined according to currently available physical resources. Specifically, the encoded data received from the first device only includes initial transmission data, or only includes retransmission data, or includes initial transmission data. Data and retransmission data, so as to maximize the use of available physical resources, to improve the utilization of physical resources and reduce waste of resources.
  • the at least one encoded data includes at least one encoding block group
  • the data type indicates position information and/or quantity used to indicate part or all of the encoding block groups in the at least one encoding block group.
  • the coded data is transmitted at the granularity of the coded block group, which can improve the efficiency of data transmission.
  • the at least one encoded data includes at least one transport block data and at least one encoded block data
  • the at least one transport block data is initial transmission data
  • the at least one encoded block data is retransmission data
  • the at least one encoded block data is retransmission data.
  • the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data and retransmission data; obtaining the at least one encoded data according to the scheduling type indication and the data type indication includes: according to the scheduling type indication and the data type indication , respectively acquiring the at least one transport block data and the at least one encoding block data.
  • At least one transport block data and at least one encoding block data can be simultaneously transmitted, thereby improving resource utilization and reducing resource waste.
  • the data type indication is a bitmap
  • the bitmap contains N bits
  • the N is pre-configured or pre-defined or signaled
  • the value of N is used to indicate The maximum value of the number of coded block groups included in a transport block
  • N is an integer greater than 1
  • the bitmap is used to indicate the position information and/or quantity of the at least one coded data.
  • the data type indication is implemented in the form of a bitmap, which is simple and flexible to implement.
  • the data type indication is a bitmap
  • the bitmap contains N bits
  • the N is pre-configured or pre-defined or signaled
  • the value of N is used to indicate The maximum value of the number of coding block groups included in a transport block
  • N is an integer greater than 1
  • the bitmap is used to indicate the position information and/or quantity of the at least one coding block data.
  • the data type indication is implemented in the form of a bitmap, which is simple and flexible to implement.
  • indication information from the first device is received, where the indication information is used to indicate the location information and/or the quantity of the at least one transport block data, and the quantity of the at least one transport block data is the at least one transport block data.
  • the indication and the indication information are used to obtain the at least one transport block data and the at least one encoding block data, respectively.
  • the number, location information and size of the encoding block group included in the at least one encoding block data are the same as the number, location information and The size corresponds to the same.
  • the retransmission data includes the number, location information and size of the encoding block group, which correspond to the same number, location information and size of the encoding block group included in the initial transmission of the retransmission data, ensuring that the retransmission data is repeated.
  • the transmission data is sent correctly, and the realization is relatively simple.
  • the location information and size of the encoding block group included in the at least one transmission block data are the same as the location information and size of the encoding block group included in the encoded data successfully transmitted in the last transmitted encoded data.
  • the location information and size of the encoding block group included in the at least one transmission block data are the same as the location information and size of the encoding block group included in the partial encoded data in the encoded data that was successfully transmitted last time.
  • the location information and size of the encoding block group included in the initial transmission data are the same as the location information and size of the encoding block group included in the encoded data that was successfully transmitted in the encoded data transmitted last time, or the same as that in the last successful transmission.
  • the position information and size of the coding block groups included in some of the coded data in the coded data are the same, which is relatively simple to implement, and is conducive to improving the transmission performance.
  • the size and quantity of the coding block group included in the at least one transport block data are determined according to the physical resources used for the at least one coded data and the modulation and coding scheme.
  • the at least one encoded data includes at least one transport block data, the at least one transport block data is initial transmission data, and the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data; or
  • the at least one encoded data includes at least one encoded block data, the at least one encoded block data is retransmission data, and the scheduling type indication is used to indicate that the at least one encoded data includes retransmission data.
  • the receiving at least one encoded data from the first device includes: receiving the at least one encoded data from the first device mapped to the first physical resource, the at least one encoded data including The mapping manner in which the coding block or coding block group is mapped to the first physical resource satisfies the predefined transport block mapping rule.
  • an embodiment of the present application provides a communication apparatus, and the apparatus may be a first device or a chip used for the first device.
  • the apparatus has the function of implementing the above-mentioned first aspect or each possible implementation method based on the first aspect. This function can be implemented by hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • an embodiment of the present application provides a communication apparatus, and the apparatus may be a second device or a chip used for the second device.
  • the apparatus has the function of implementing the above-mentioned second aspect or each possible implementation method based on the second aspect. This function can be implemented by hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • an embodiment of the present application provides a communication device, including a processor, where the processor is coupled to a memory, and the memory is used to store a program or an instruction, and when the program or instruction is executed by the processor, the device implements the above-mentioned first aspect , the second aspect, each possible implementation method based on the first aspect, or a method based on each possible implementation method of the second aspect.
  • the memory may be located within the device or external to the device.
  • the processor includes one or more.
  • an embodiment of the present application provides a communication apparatus, including a method for implementing the above-mentioned first aspect, or the second aspect, or each possible implementation method based on the first aspect, or each possible implementation based on the second aspect The units or means of the individual steps of the method.
  • an embodiment of the present application provides a communication apparatus, including at least one processor and an interface.
  • the interface is configured to provide program instructions or data for the at least one processor, and the at least one processor is configured to execute the program instructions, so as to implement the above-mentioned first aspect, or the second aspect, or each based on the first aspect. Possible implementation methods, or possible implementation methods based on the second aspect.
  • an embodiment of the present application further provides a computer-readable storage medium, including instructions, which, when executed on a computer, cause the computer to execute the above-mentioned first aspect, or the second aspect, or various possibilities based on the first aspect. implementation method, or each possible implementation method based on the second aspect.
  • an embodiment of the present application further provides a computer program product, which, when run on a computer, enables the computer to execute the above-mentioned first aspect, or the second aspect, or each possible implementation method based on the first aspect, or Various possible implementation methods based on the second aspect.
  • an embodiment of the present application further provides a chip system, including a processor, the processor is coupled to a memory, and the memory is used to store programs or instructions, when the program or instructions are executed by the processor, the chip system enables the above-mentioned first One aspect, the second aspect, each possible implementation method based on the first aspect, or a method based on each possible implementation method of the second aspect.
  • the memory may be located within the system-on-chip, or may be located outside the system-on-chip.
  • the processor includes one or more.
  • an embodiment of the present application further provides a communication system, including a first device for executing the above-mentioned first aspect or any possible implementation method based on the first aspect, and a first device for executing the above-mentioned second aspect or A second device based on any possible implementation method of the second aspect.
  • an embodiment of the present application further provides a terminal, including at least one processor and a memory.
  • the memory is used to store computer-executed instructions, and when the terminal is running, the at least one processor executes the computer-executed instructions stored in the memory, so that the terminal executes the above-mentioned first aspect, second aspect, based on the first aspect.
  • 1 is a schematic diagram of the relationship between a transport block and an encoding block
  • Fig. 2 (a) is a schematic diagram of the relationship between the transport block and the encoding block group
  • Fig. 2(b) is another schematic diagram of the relationship between the transport block and the encoding block group
  • FIG. 3 is a schematic flowchart of a short-range communication method provided by an embodiment of the present application.
  • FIG. 4(a) is a schematic diagram of a bitmap provided by an embodiment of the present application.
  • FIG. 4(b) is a schematic diagram of another bitmap provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of another bitmap provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another bitmap provided by an embodiment of the present application.
  • FIG. 7 is another schematic diagram of a bitmap provided by an embodiment of the present application.
  • Fig. 8 is an example diagram of feedback information
  • FIG. 9 is a schematic diagram of a communication device according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another communication device provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the embodiments of the present application may be applied to various scenarios. For example, smart home communication, intelligent transportation communication, robot communication, drone communication and other scenarios that include smart terminals.
  • the embodiments of the present application may be applied to a vehicle application scenario.
  • the diversification of in-vehicle applications increases the number and types of in-vehicle communication nodes, which puts forward higher requirements for in-vehicle communication capabilities.
  • in-vehicle wireless can further reduce the number, length, and weight of in-vehicle wiring harnesses, as well as the corresponding installation, maintenance, and maintenance costs.
  • In-vehicle communication technology has a trend of gradual wirelessization.
  • one communication domain includes a master node and at least one slave node, wherein the master node schedules the slave nodes to realize mutual data transmission between the master and slave nodes.
  • the sending device also referred to as the first device in the embodiment of the present application may be a master node in the vehicle communication
  • the receiving device also called the second device
  • the transmitting device is a slave node in in-vehicle communication
  • the receiving device is a master node in in-vehicle communication.
  • the embodiments of the present application may be applied to a home scenario.
  • the number of supported users may be relatively small, but the available bandwidth is generally relatively wide, such as 40MHz and 80MHz. If all are given to one user, the transmission block will be quite large.
  • the utilization rate is generally divided into multiple code blocks (code block, CB) or code block group (code block group, CBG), and then sent to the receiving device (also called the second device) after channel coding and other steps. .
  • transmission errors will occur in individual coding blocks or coding block groups, so that the receiving device can feedback which coding blocks or coding block groups have transmission errors, and the sending device will transmit the next time.
  • the coded block or coded block group with transmission errors can be sent, and some new coded blocks or coded block groups can be sent at the same time, thereby increasing the capacity of the system.
  • the embodiments of the present application may be applied to air interface communication.
  • the sending device may be a terminal device, and the receiving device may be a base station.
  • the transmitting device is a base station, and the receiving device is a terminal device.
  • one transmission block may be divided into multiple coding blocks.
  • the number of coding blocks actually included in a transport block (represented by C) is not limited, for example, the number of coding blocks actually included in a transport block may be determined by the segmentation rule from transport blocks to coding blocks or in other ways.
  • a transmission block may also be divided into multiple coding block groups, and each coding block group includes one or more coding blocks.
  • the maximum number of coding block groups (represented by N) included in a transport block can be configured through high-layer signaling or physical layer signaling. In this way, the number of coding block groups (represented by M) actually included in each transport block does not exceed N.
  • This embodiment of the present application does not limit the number of coding blocks (represented by C) actually included in a transport block.
  • the number of coding blocks actually included in a transport block may be determined by the segmentation rule from transport blocks to coding blocks or in other ways. .
  • M min(C, N) is satisfied, that is, M is the smaller value between C and N.
  • M 1 mod(C,M)
  • K 1 represents the number of coding blocks included in each coding block group when the serial number of the coding block group is from 0 to M 1 -1
  • K 2 represents that the serial number of the coding block group is from M 1 to M
  • mod represents the modulo operation, means round up, Indicates rounding down
  • M 1 0, then each coding block group contains the same number of coding blocks at this time. As shown in FIG.
  • FIG. 2( a ) it is a schematic diagram of the relationship between the transmission block and the coding block group, which shows the situation when C is less than N.
  • the embodiments of the present application are applicable not only to the scenario where the transport block is divided into one or more coding blocks, but also to the scenario where the transport block is divided into one or more coding block groups (wherein one coding block group includes one or more coding block groups coding block).
  • the coding blocks may be referred to as coded data or coded block data.
  • the encoding block groups may be referred to as encoded data or encoded block data. That is, the encoded data or encoded block data described in the following embodiments of the present application may be an encoded block or a group of encoded blocks.
  • an embodiment of the present application provides a short-range communication method.
  • the method can only send the initial transmission data (also referred to as the newly transmitted data), or only send the coded data.
  • initial transmission data and retransmission data can also be sent together, so as to maximize the utilization of physical resources and avoid resource waste caused by low utilization of physical resources.
  • a schematic flowchart of a short-range communication method provided by an embodiment of the present application is provided.
  • the method may be performed by a first device or a component of the first device (for example, a processor, a chip, or a chip system, etc.) ), on the receiving side, may be executed by the second device or a component of the second device (eg, a processor, a chip, or a system-on-a-chip, etc.).
  • the method is described by taking the first device and the second device as an example to perform the method, and the method includes the following steps:
  • Step 301 the first device acquires at least one piece of encoded data.
  • acquiring at least one encoded data by the first device refers to acquiring at least one encoded data block.
  • acquiring at least one encoded data block by the first device refers to acquiring at least one encoded data block group, each encoding block group including one or more encoded data blocks. It should be noted here that this application does not specifically limit the number of encoding block groups included in the transmission block, the number of encoding blocks included in the transmission block, and the number of encoding blocks included in the encoding block group. For details, please refer to the above It is stated or configured or determined according to a specific communication scenario.
  • the at least one encoded data here refers to encoded data to be sent to the second device.
  • the at least one encoded data here may include initial transmission data and retransmission data.
  • the first device can receive feedback information to indicate which encoded data has a transmission error, so it can retransmit those encoded data in the next transmission. coded data.
  • the initial transmission data that is, the new transport block
  • the retransmission data that is, the previous transmission block
  • the data transmission in the first case can also be called hybrid transmission.
  • the at least one encoded data here may only contain the initial transmission data.
  • at least one encoded data acquired by the first device is the initial transmission data.
  • the encoded data transmitted last time are all correctly transmitted, the next transmission does not include retransmitted data, so at least one encoded data acquired by the first device and to be transmitted to the second device is also initially transmitted data.
  • the at least one encoded data here may only contain retransmission data.
  • the first device can receive feedback information to indicate which coded data has a transmission error, and can retransmit those coded data in the next transmission.
  • only retransmission data is sent in the next transmission, that is, only the encoded data with the last transmission error is sent. .
  • the principle of sending encoded data is to make maximum use of physical resources as much as possible, and send as much encoded data as possible in one transmission, so as to fully utilize physical resources and reduce resource waste. Therefore, when the initial transmission data and the retransmission data can be transmitted at the same time, the hybrid transmission mode is used for transmission.
  • Step 302 The first device sends at least one of a scheduling type indication and a data type indication to the second device. Accordingly, the second device receives at least one of the scheduling type indication and the data type indication.
  • the first device sends a scheduling type indication and a data type indication to the second device. That is, both indications need to be sent to the second device, and correspondingly, the second device receives the above two indications.
  • the implementation methods of the scheduling type indication and the data type indication include but are not limited to the following method 1 and method 2.
  • the scheduling type indication is used to indicate that at least one piece of encoded data includes initial transmission data, retransmission data, or both initial transmission data and retransmission data.
  • the data type indicates position information (such as a number, an index, etc.) and/or a quantity for indicating part or all of the encoded data in the at least one encoded data.
  • position information such as a number, an index, etc.
  • the at least one encoded data includes initial transmission data indicates that the at least one encoded data does not include retransmission data (it can also be understood that, from the perspective of data transmission, the at least one encoded data only includes initial transmission data. transmission data), the at least one encoded data includes retransmission data indicating that the at least one encoded data does not include initial transmission data (it can also be understood that, from the perspective of data transmission, the at least one encoded data only includes retransmission data data).
  • the at least one encoded data includes at least one encoded block
  • the scheduling type indication is used to indicate that the at least one encoded block includes initial transmission data, retransmission data, or initial transmission data and retransmission data
  • the data type indication It is used to indicate the position information and/or the number of some or all of the coding blocks in the at least one coding block.
  • the at least one encoded data includes at least one encoded block group
  • the scheduling type indication is used to indicate that the at least one encoded block group includes initially transmitted data, includes retransmitted data, or includes both initially transmitted data and retransmitted data
  • the data type indication is used to indicate position information and/or number of some or all of the coding block groups in the at least one coding block group.
  • the scheduling type indication may be indicated by a field composed of 2 bits, for example, 00, 01, and 10 are used to indicate the above three types, respectively. It should be noted that, in the above example, 00, 01, and 10 are used as an example to indicate the above three types respectively. In practice, any three of 00, 01, 10, and 11 can be used to indicate the above three types.
  • the above-mentioned retransmission data can also be divided into retransmission data in units of transport blocks and retransmission data in units of coding block groups, that is, the scheduling type indication can be indicated by a field composed of 2 bits
  • the scheduling type indication can be indicated by a field composed of 2 bits
  • 00 is used to indicate that at least one encoded data includes initial transmission data
  • 01 is used to indicate that at least one encoded data includes retransmission data in units of transport blocks
  • 10 is used to indicate that at least one encoded data includes retransmission data in units of encoding blocks.
  • Transmission data, 11 is used to indicate that at least one encoded data includes initial transmission data and retransmission data in units of transport blocks (the retransmission data may be in units of transport blocks or encoded blocks).
  • 00 is used to indicate initial transmission in units of transport blocks
  • 01 is used to indicate retransmission in units of transport blocks
  • 10 is used to indicate retransmission in units of coding block groups
  • 11 is used for Indicates mixed transfer.
  • 00, 01, 10, and 11 specifically indicate is not limited, and can be determined during specific implementation.
  • the type of the at least one encoded data may also be indicated in an implicit manner.
  • a field Modulation and coding scheme normally has a value range of 0 to 12, which type can be determined according to its value.
  • the scheduling type indication is used to indicate that the at least one encoded data contains only initial transmission data, it may also be understood that the scheduling type indication is used to indicate only new transmission or only initial transmission. When the scheduling type indication is used to indicate that the at least one encoded data contains only retransmission data, it may also be understood that the scheduling type indication is used to indicate only retransmission. When the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data and retransmission data, it may also be understood that the scheduling type indication is used to indicate mixed transmission.
  • the scheduling type indication is used to indicate that at least one encoded data contains initial transmission data
  • the data type indication is used to indicate the location information and/or quantity of the at least one encoded data
  • the at least one encoded data is initially transmitted. data, so that the second device can acquire the initially transmitted data according to the data type indication and the scheduling type indication.
  • the scheduling type indication is used to indicate that at least one piece of encoded data contains retransmission data
  • the data type indication is used to indicate the location information and/or quantity of the at least one piece of encoded data, and the at least one piece of encoded data is retransmission data.
  • the data is transmitted, so that the second device can obtain the retransmitted data according to the data type indication and the scheduling type indication.
  • the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data and retransmission data
  • the data type indication is used to indicate the location information and/or quantity of the at least one encoded data, or is used to indicate The location information and/or the quantity of the retransmission data in the at least one encoded data, so that the second device can obtain the initial transmission data and the retransmission data according to the data type indication and the scheduling type indication.
  • the scheduling type indication is used to indicate that the at least one encoded data contains only the initial transmission data or not only the initial transmission data.
  • the data type indicates position information (such as a number, an index, etc.) and/or a quantity for indicating part or all of the encoded data in the at least one encoded data.
  • the scheduling type indication is used to indicate that the at least one coding block only contains the initial transmission data, or does not only contain the initial transmission data
  • the data type indication is used to indicate that the at least one Position information and/or number of some or all of the coding blocks in the coding block.
  • the scheduling type indication is used to indicate that the at least one coding block group contains only the initial transmission data, or does not only contain the initial transmission data
  • the data type indication is used to indicate that the at least one coding block group The position information and/or the number of some or all of the encoded block groups in the .
  • the scheduling type indication is used to indicate that the at least one encoded data contains only the initial transmission data, or not only the initial transmission data. It can also be understood that the scheduling type indication is used to indicate the initial transmission, or is used to indicate that it is not the initial transmission, wherein, it is not the initial transmission. Transmission refers to retransmission or mixed retransmission (ie, the transmitted at least one encoded data includes the initial transmission data and the retransmission data). As an example, the scheduling type indication may be indicated by a 1-bit field, for example, "0" indicates that at least one encoded data contains only initial transmission data, and "1" that at least one encoded data does not contain only initial transmission data. As another example, the type of the at least one encoded data may also be indicated in an implicit manner.
  • the type of the at least one encoded data is indicated by the MCS field.
  • the modulation and coding scheme (Modulation and coding scheme, MCS) field has a value range of 0 to 12 under normal circumstances, and the type can be determined according to its value. For example, if the value is within the above range, that is, the value is any value from 0 to 12, it is determined that only the initial data is included, and the value is not within the above range, that is, the value is any value other than 0 to 12.
  • a value means that only retransmission data is included, or both initial transmission data and retransmission data are included.
  • the value range of a field Modulation and coding scheme is 0 to 12 under normal circumstances, the value range can be divided into three intervals, each interval corresponds to a coded data transmission method (that is, only the initial The transmission mode of the encoded data can be determined according to the value of this field.
  • the scheduling type indication is used to indicate that the at least one encoded data contains only initial transmission data
  • the data type indication is used to indicate the location information and/or quantity of the at least one encoded data
  • the at least one encoded data is the initial transmission data.
  • the data is transmitted, so that the second device can acquire the initially transmitted data according to the data type indication and the scheduling type indication.
  • the scheduling type indication is used to indicate that the at least one encoded data does not only include initial transmission data
  • the data type indication is used to indicate the location information and/or quantity of the at least one encoded data
  • the at least one encoded data is either All are retransmission data, or include initial transmission data and retransmission data
  • the second device may determine whether this transmission is only retransmission or mixed transmission according to the data type indication. For example, if the quantity of coded data indicated by the data type indication is less than or equal to the quantity of coded data in which a transmission error occurred last time, the second device determines that this transmission is only retransmission. Another example.
  • the second device determines that this transmission is a mixed transmission.
  • the inclusion of retransmission data only may be a retransmission based on a transport block or a retransmission based on a coding block or a group of coding blocks.
  • a transmission block can be initially transmitted in a pre-defined manner, and the second The device may know the location information and/or the number of coding blocks or coding block groups contained in the transmitted transport block, so the above data type indication may not be required, or in this case, the data type indication is used for other purposes. It can be understood that, in the foregoing step 302, the first device sends a scheduling type indication to the second device. Correspondingly, the second device receives the scheduling type indication.
  • the first device may send the data type indication, where the data type indication is used to indicate the position information and/or quantity of part or all of the encoded data in the at least one encoded data, or is used for Indicate other information; or, the first device does not send the data type indication.
  • the above-mentioned scheduling type indication and data type indication may be carried in a DCI or high-layer signaling for scheduling.
  • Step 303 the first device sends at least one piece of encoded data to the second device. Accordingly, the second device receives the at least one encoded data.
  • step 302 may be executed first, or the step 303 may be executed first, or the steps 302 and 303 may be executed simultaneously.
  • Step 304 the second device acquires at least one piece of encoded data according to at least one of the scheduling type indication and the data type indication.
  • the second device determines, according to the scheduling type indication, whether the at least one encoded data contains only the initial transmission data, only the retransmission data, or both the initial transmission data and the retransmission data, and obtains the initial transmission data according to the data type indication , or obtain retransmission data, or obtain initial transmission data and retransmission data.
  • the first device when sending encoded data to the second device, may choose to send only the initial transmission data, only the retransmitted data, or send the initial transmission data according to the currently available physical resources and the encoded data to be sent. and retransmit data, so as to maximize the use of available physical resources to improve the utilization of physical resources and reduce the waste of resources.
  • the implementation method 1 corresponding to the scheduling type indication and the data type indication described in the foregoing step 302 is used as an example for description. It should be noted that, for the specific implementation method of the second implementation method of the scheduling type indication and the data type indication described in the above step 302, corresponding adjustments can be made with reference to the specific implementation of the implementation method 1, which will not be repeated.
  • the at least one encoded data includes initial transmission data and retransmission data.
  • the first device can send initial transmission data and retransmission data to the second device in one resource scheduling, which can maximize resource utilization.
  • the at least one encoded data includes at least one transmission block data and at least one encoded block data, the at least one transmission block data is initial transmission data, the at least one encoded block data is retransmission data, and the at least one encoded block data can be is at least one coding block or at least one coding block group.
  • the at least one transport block data may include at least one coding block or at least one coding block group, and as initial transmission data, the at least one transport block data is transmitted in a transport block manner.
  • the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data and retransmission data.
  • the data type is indicated as a bitmap (bitmap), the bitmap contains N bits, and N is pre-configured (such as network management configuration) or pre-defined (such as system definition) or signaling (such as high-level signaling) notification, or other signaling notification, etc.), the value of N is used to indicate the maximum number of coding blocks or coding block groups contained in a transport block, N is an integer greater than 1, and the bitmap is used to indicate at least Location information and/or quantity of an encoded data.
  • bitmap bitmap
  • N is pre-configured (such as network management configuration) or pre-defined (such as system definition) or signaling (such as high-level signaling) notification, or other signaling notification, etc.)
  • the value of N is used to indicate the maximum number of coding blocks or coding block groups contained in a transport block
  • N is an integer greater than 1
  • the bitmap is used to indicate at least Location information and/or quantity of an encoded data.
  • the bitmap indicates the position information and/or the number of initial transmission data (ie at least one transport block data) and retransmission data (ie at least one encoded block data) in the transmitted encoded data, but does not distinguish which are the first transmission data, which are retransmitted data.
  • the second device can know how many encoded data have been sent in this transmission and the location information of these encoded data according to the bitmap, but cannot distinguish which of these encoded data is the initial transmission data and which is the retransmission data. data.
  • the second device needs to distinguish, from the received encoded data, which are the initial transmission data and which are the retransmission data according to other information.
  • the second device Since the second device is the receiver of the encoded data, the second device can know the encoded data with a transmission error last time and send feedback information to the first device.
  • the feedback information is used to indicate which encoded data has a transmission error.
  • the second device can determine which are retransmission data and which are initial transmission data according to the position information of the received encoded data. That is, optionally, the method further includes the step of: the second device sends feedback information to the first device, where the feedback information is used to indicate a transmission error or a reception failure of at least one encoded data. Further, the first device executes the step 301 .
  • Implementation method B the data type is indicated as a bitmap, the bitmap contains N bits, and N is pre-configured (such as network management configuration) or pre-defined (such as system definition) or signaling (such as high-level signaling, or other signaling, etc.), the value of N is used to indicate the maximum number of coding blocks or coding block groups contained in a transport block, N is an integer greater than 1, and the bitmap is used to indicate the above at least one code Position information and/or number of retransmission data (ie at least one encoded block data) in the data.
  • the above step 302 also includes that the first device sends indication information to the second device, where the indication information is used to indicate the location information of the initial transmission data (that is, the at least one transmission block data) and the / or quantity.
  • the second device can obtain the position information and/or the quantity of the retransmitted data in this transmission, so as to obtain the retransmitted data. Further optionally, the location information and/or quantity of the initially transmitted data may also be determined according to the bitmap and the indication information, so as to obtain the initially transmitted data.
  • the method for realizing the relationship between at least one encoded data sent this time and the encoded data sent last time includes but is limited to:
  • Implementation method 1 The number, location information, and size of the encoding block group included in the retransmission data (that is, at least one encoding block data) in the at least one encoded data sent this time, and the encoding included in the retransmission data at the time of initial transmission.
  • the number, location information and size of the block groups are the same.
  • the transmitted encoded data is an encoded block
  • the number, location information and size of the retransmitted data (that is, at least one encoded block) in the at least one encoded block sent this time It is the same as the number, position information and size of the coding blocks included in the initial transmission of the retransmission data.
  • the coded data sent is a coded block group
  • the retransmission data in at least one coded block group sent this time contains a coded block group (referred to as the first coding block group).
  • the number, location information, and size are the same as the number, location information, and size of the encoding block group (called the second encoding block group) included in the retransmission data at the time of initial transmission.
  • the size of the first encoding block group is the same as the size of the second encoding block group, which means that the number and size of encoding blocks included in the first encoding block group and the number and size of encoding blocks included in the second encoding block group are respectively same.
  • the location information and size of the initial transmission data (that is, the at least one transport block data) in the at least one encoded data are the same as those in the encoded data sent last time.
  • the location information and size of the encoded data that are successfully transmitted correspond to the same.
  • the transmitted encoded data is an encoded block
  • the number, location information and size are the same.
  • the transmitted encoded data is an encoded block group
  • the number and position information of the encoded block group included in the initial transmission data (that is, at least one transmission block data) in the at least one encoded data and the size, which are the same as the number, position information and size of the successfully transmitted coding block group (referred to as the fourth coding block group) in the last transmitted coding block group.
  • the size of the third encoding block group is the same as the size of the fourth encoding block group, which means that the number and size of encoding blocks included in the third encoding block group and the number and size of encoding blocks included in the fourth encoding block group are respectively same.
  • the first device may use the physical resources for the at least one encoded data and a modulation and coding scheme (such as a modulation and coding strategy (Modulation and Coding Scheme, MCS)), determine the size and quantity of the coding block or coding block group included in the initial transmission data in the at least one coded data.
  • a modulation and coding scheme such as a modulation and coding strategy (Modulation and Coding Scheme, MCS)
  • MCS Modulation and Coding Scheme
  • the number, position information and size of the encoding blocks contained in the initially transmitted data in the determined at least one encoded data are the same as the encoding blocks or encoding block groups contained in the encoded data successfully transmitted in the last transmitted encoded data.
  • the number, location information and size are the same.
  • the first device may first determine the amount of data that can be sent according to the allocated physical resources and the MCS, and then, according to the amount of data that can be sent, corresponds to the retransmission data in the at least one encoded data. Determine the data volume corresponding to the initial transmission data in the above-mentioned at least one encoded data, and then determine the encoding contained in the initial transmission data according to the data volume corresponding to the initial transmission data and the number of encoding block groups contained in the initial transmission data.
  • the size of the block group specifically, determines the number of encoding blocks and the size of the encoding blocks in the encoding block group included in the initially transmitted data.
  • the number, location information and size of the encoding block group (referred to as the fifth encoding block group) included in the initially transmitted data in the at least one encoded data are determined to be the same as that in the encoded data transmitted last time.
  • the number, position information and size of the encoding block group (called the sixth encoding block group) included in the encoded data are the same, and the number and size of encoding blocks included in the fifth encoding block group are the same as those included in the sixth encoding block group.
  • the number and size of encoding blocks may or may not be the same, respectively.
  • Implementation method 2 The number, location information, and size of the encoding block group included in the retransmission data (that is, at least one encoding block data) in the at least one encoded data sent this time, and the encoding included in the initial transmission of the retransmission data.
  • the number, location information and size of the block groups are the same.
  • the quantity of initially transmitted data (that is, at least one transmission block data) in the at least one encoded data is less than the quantity of successfully transmitted encoded data in the last transmitted encoded data.
  • the implementation method of the retransmitted data in the at least one encoded data is the same as the implementation method of the retransmitted data in the at least one encoded data in the foregoing implementation method 1, and the foregoing description can be referred to, and details are not repeated here.
  • the position information and size of the initial transmission data in the at least one encoded data are the same as the part of the encoded data that was successfully transmitted in the encoded data sent last time.
  • the location information and size of the encoded data correspond to the same.
  • the coded data is an coded block
  • the position information and size of the initially transmitted coded block in the at least one coded block correspond to the position information and size of some coded blocks in the coded data successfully transmitted in the coded data sent last time
  • the number of initially transmitted encoded blocks in the at least one encoded block is less than the number of successfully transmitted encoded blocks in the encoded data sent last time.
  • the location information and size of the encoded block group (referred to as the seventh encoded block group) included in the initially transmitted data in the at least one encoded block group are the same as the encoded block group sent last time.
  • the position information and size of a part of the encoding block group (called the eighth encoding block group) in the encoding block group that has been successfully transmitted are correspondingly the same, and the number of encoding block groups included in the initial transmission data in the at least one encoding block group is less than The number of successfully transmitted encoding block groups in the last sent encoding block group.
  • the size of the seventh encoding block group is the same as the size of the eighth encoding block group, which means that the number and size of the encoding blocks included in the seventh encoding block group and the number and size of the encoding blocks included in the eighth encoding block group are respectively same.
  • the first device may determine, according to the physical resources used for the at least one encoded data and the modulation and coding scheme (such as MCS), that in the at least one encoded data The size and number of coding blocks or coding block groups contained in the initial transmission data. For example, when the encoded data is an encoded block, the first device may first determine the amount of data that can be sent according to the allocated physical resources and MCS, and then determine the amount of data that can be sent and the data corresponding to the retransmission data in the at least one encoded data.
  • MCS modulation and coding scheme
  • the first device may first determine the amount of data that can be sent according to the allocated physical resources and the MCS, and then, according to the amount of data that can be sent, corresponds to the retransmission data in the at least one encoded data.
  • the size of the block group specifically, determines the number of encoding blocks and the size of the encoding blocks in the encoding block group included in the initially transmitted data. It should be noted that the determined number, position information and size of the encoding block group (referred to as the ninth encoding block group) included in the initial transmission data in the at least one encoded data are the same as those in the encoded data transmitted last time.
  • the number, position information and size of the encoding block group (referred to as the tenth encoding block group) included in the partial encoded data in the encoded data are the same, and the number and size of encoding blocks included in the ninth encoding block group are the same as the tenth encoding block group.
  • the number and size of the coding blocks contained in the coding block group may or may not be the same, respectively.
  • Implementation method 3 The number, location information, and size of the encoding block group included in the retransmission data (that is, at least one encoding block data) in the at least one encoded data sent this time, and the encoding included in the initial transmission of the retransmission data.
  • the number, location information and size of the block groups are the same.
  • the quantity of initially transmitted data (that is, at least one transmission block data) in the at least one encoded data is greater than the quantity of successfully transmitted encoded data in the last transmitted encoded data.
  • the implementation method of the retransmitted data in the at least one encoded data is the same as the implementation method of the retransmitted data in the at least one encoded data in the foregoing implementation method 1, and the foregoing description can be referred to, and details are not repeated here.
  • the first device may determine, according to the physical resources used for the at least one encoded data and the modulation and coding scheme (such as MCS), the data in the at least one encoded data The size and number of coding blocks or coding block groups contained in the initial transmission data. For example, when the encoded data is an encoded block, the first device may first determine the amount of data that can be sent according to the allocated physical resources and MCS, and then determine the amount of data that can be sent and the data corresponding to the retransmission data in the at least one encoded data.
  • the modulation and coding scheme such as MCS
  • the first device may first determine the amount of data that can be sent according to the allocated physical resources and the MCS, and then, according to the amount of data that can be sent, corresponds to the retransmission data in the at least one encoded data.
  • the size of the block group specifically, determines the number of encoding blocks and the size of the encoding blocks in the encoding block group included in the initially transmitted data.
  • implementation method 1 to implementation method 3 can be implemented in combination with the implementation method A or the implementation method B indicated by the above data type.
  • the first physical resource mapped to each encoded data in the at least one encoded data is a transport block formed according to the at least one encoded data
  • the corresponding allocation rules are allocated. That is, the first device is equivalent to the at least one encoded data as a transport block, and then according to the allocation rule corresponding to the transport block, allocates physical blocks to the corresponding encoded blocks or encoded block groups in each encoded data in the at least one encoded data. resource.
  • allocating physical resources includes determining the bit length of each coding block or coding block group after rate matching and how the bits after rate matching are mapped on the physical resources.
  • the first device in the above step 303 sends at least one encoded data to the second device, which specifically includes: the first device maps the at least one encoded data to the first physical resource and sends it to the second device, and the at least one encoded data is sent to the second device.
  • the mapping manner in which the included coding block or coding block group is mapped to the first physical resource satisfies a predefined transport block mapping rule.
  • At least one piece of encoded data sent by the first device to the second device is initial transmission data.
  • the coding block included in the at least one coded data is called a transport block as a whole. It is transmitted in coded blocks.
  • the encoding block group included in the at least one encoded data as a whole is called a transport block. It can also be transmitted in groups of coded blocks.
  • At least one piece of encoded data sent by the first device to the second device is retransmission data.
  • the coded blocks included in the at least one coded data as a whole are called a transport block. It is transmitted in coded blocks.
  • the encoding block group included in the at least one encoded data as a whole is called a transport block. It can also be transmitted in groups of coded blocks.
  • the at least one encoded data sent by the first device to the second device includes initial transmission data and retransmission data.
  • the coding blocks included in the at least one coded data as a whole are called an equivalent transport block or a logical transport block
  • the logical transport block includes at least one initial transmission block and At least one retransmission transport block, or at least one initial transmission transport block and at least one retransmission coding block.
  • the encoding block group included in the at least one encoded data as a whole is called an equivalent transmission block or a logical transmission block
  • the logical transmission block includes at least one initial transmission transmission block and at least one retransmission transport block, or at least one initial transmission transport block and at least one retransmission coded block group.
  • the above-mentioned encoded data is taken as an example of encoding block groups for description, that is, the first device divides the transport block into one or more encoding block groups for transmission.
  • the respective position information of the 8 coding block groups is: CBG0, CBG1, CBG2, CBG3, CBG4, CBG5, CBG6, CBG7.
  • the bitmap contains 8 bits, and each bit corresponds to a coding block group, which is used to indicate whether there is data to be sent in the coding block group. For example, "1" indicates that the corresponding coded block group is sent, and "0" indicates that the corresponding coded data block group is not sent.
  • the first device sent CBG0, CBG1, CBG2 and CBG3 to the second device in the last transmission, and then received feedback information from the second device, the feedback information indicates that a transmission error occurred in CBG1, so the next transmission needs to CBG1 performs retransmission.
  • the encoded data sent next time are also CBG0, CBG1, CBG2 and CBG3, where CBG1 is the retransmission data, and the number of CBs included in CBG1 and the size of each CB are the same as the CBG1 sent last time.
  • the number of CBs and the size of each CB are the same.
  • CBG0, CBG2 and CBG3 are the initial transmission data.
  • CBG0, CBG2 and CBG3 constitute an initial transmission block.
  • the number of CBs contained in CBG0 and the size of each CB are the same as the number of CBs and each CB contained in the last sent CBG0.
  • CBG2 contains the same number of CBs and the size of each CB as the last sent
  • CBG2 contains the same number of CBs and the size of each CB
  • CBG3 contains the same number of CBs and the size of each CB as The number of CBs included in the CBG3 sent last time and the size of each CB are the same.
  • the data type indication is a bitmap, and the bitmap is shown in FIG. 4(a).
  • the bit positions corresponding to CBG0, CBG1, CBG2 and CBG3 in the bit bitmap are all 1, which are used to indicate that the position information of at least one encoded data sent is CBG0, CBG1, CBG2 and CBG3 respectively.
  • a total of 4 CBGs are sent, Among them, the bit information corresponding to the initial transmission data (ie CBG0, CBG2 and CBG3) and the bit information corresponding to the retransmission data (ie CBG1) are all 1, and the bit positions of the bitmap corresponding to CBG4, CBG5, CBG6 and CBG7 are all 0 , used to indicate that CBG4, CBG5, CBG6 and CBG7 did not send encoded data.
  • the second device After the second device receives the bitmap, it can learn that a total of 4 CBGs have been sent this time, namely CBG0, CBG1, CBG2 and CBG3.
  • the second device can determine that the received CBG0, CBG2 and CBG3 are initial transmission data, and the received CBG1 is retransmission data according to the feedback information sent to the first device last time (used to indicate that CBG1 has a transmission error).
  • the data type indication is a bitmap, and the bitmap can also be as shown in FIG. 4(b).
  • the bit position corresponding to CBG1 in the bitmap is 1, which is used to indicate that CBG1 is retransmission data
  • the bit position corresponding to CBG0, CBG2 and CBG3 in the bitmap is 0, which is used to indicate that CBG0, CBG2 and CBG3 are initial transmissions Data
  • the bit position corresponding to CBG4, CBG5, CBG6 and CBG7 in the bitmap is 0, which is used to indicate that CBG4, CBG5, CBG6 and CBG7 do not send encoded data.
  • the second device After the second device receives the bitmap, it can know that the CBGs transmitted last time are CBG0 to CBG4, and know that the current transmission is also CBG0 to CBG4, and according to the bitmap, since the bit corresponding to CBG1 is 1, it is known that CBG1 is retransmission data. Since the bits corresponding to CBG0, CBG2, and CBG3 are 0, it is known that CBG0, CBG2, and CBG3 are initial transmission data. Based on the implementation method 1, when the data type indication adopts the above implementation method B, the data type indication is a bitmap, and the bitmap is shown in FIG. 7 .
  • the bit position corresponding to CBG1 in the bitmap is 1, the position information used to indicate that the sent at least one retransmission data is CBG1, and the indication information is used to indicate that the number of initial transmission data in the sent at least one encoded data is 3 , that is, a total of 4 CBGs are sent.
  • the bit position of the bitmap corresponding to CBG0, CBG2, CBG3, CBG4, CBG5, CBG6 and CBG7 are all 0, which are used to indicate that CBG0, CBG2, CBG3, CBG4, CBG5, CBG6 and CBG7 do not send retransmission data.
  • the second device can learn that the retransmitted data sent this time is CBG1, and determine that the initially transmitted data are CBG0, CBG2 and CBG3 according to the bitmap and the indication information.
  • the physical resources mapped by CBG0 are the same as the physical resources mapped by CBG0 sent last time
  • the physical resources mapped by CBG1 are the same as those mapped by CBG1 sent last time.
  • the physical resources are the same
  • the physical resources mapped by CBG2 are the same as those mapped by CBG2 sent last time
  • the physical resources mapped by CBG3 are the same as those mapped by CBG3 sent last time, otherwise the physical layer resources are in CBG0, CBG1, CBG2 and CBG3
  • the allocation principle between them can be determined according to the fact that these CBGs belong to the same transport block.
  • the allocation principle of physical layer resources among CBG0, CBG1, CBG2 and CBG3 may be determined according to the fact that these CBGs belong to the same transport block. For example, first allocate a preset number of bits to each CB included in the equivalent transport block composed of CBG0, CBG1, CBG2 and CBG3 according to the principle of dividing as much as possible, for example, CBG0, CBG1, CBG2 and CBG3, etc. If the effective transport block contains 10 CBs in total, and the preset number of bits is 1000 bits, each CB is allocated 100 bits, and the matching process from CB to bit is also called rate matching. Then, the preset number of bits are mapped to physical resources for transmission. It should be noted that, in specific implementation, these CBs may be sequentially matched to a preset number of bits according to the sorting order of the CBs included in the equivalent transport blocks formed by CBG0, CBG1, CBG2 and CBG3.
  • the number of bits that can be transmitted by the physical layer is G (that is, the number of encoded bits that can be used by the transport block), NL represents the number of layers mapped to the transport block, Q m represents the modulation order, and E r represents the rate of each coding block
  • G that is, the number of encoded bits that can be used by the transport block
  • NL represents the number of layers mapped to the transport block
  • Q m represents the modulation order
  • E r represents the rate of each coding block
  • the length after matching, r represents the serial number of the coding block, its value is 0 to C'-1
  • C' represents the total number of coding blocks, when r is less than or equal to C'-mod(G/( NL *Q m ), C')-1, then otherwise where mod represents the modulo operation, means round up, Indicates rounded down.
  • QPSK Quadrature Phase Shift Keying
  • the encoded data to be sent next time contains at least CBG1 and one or two of CBG0, CBG2 or CBG3.
  • the following description will be given by taking the sent encoded data including CBG0, CBG1 and CBG2 as an example.
  • CBG1 is retransmission data
  • the number of CBs contained in CBG1 and the size of each CB are the same as the number of CBs contained in CBG1 sent last time and the size of each CB respectively.
  • CBG0 and CBG2 are the initial transmission data
  • CBG0 and CBG2 constitute an initial transmission block.
  • the number of CBs contained in CBG0 and the size of each CB are the same as the number of CBs contained in the CBG0 sent last time and the size of each CB, respectively.
  • the number of CBs included and the size of each CB are the same as the number of CBs and the size of each CB included in the CBG2 sent last time.
  • the number of CBs contained in CBG0 and the size of each CB may be the same or different from the number of CBs contained in CBG0 sent last time and the size of each CB, respectively.
  • the number of CBs included in the CBG2 and the size of each CB may be the same or different from the number of CBs included in the CBG2 sent last time and the size of each CB.
  • the data type indication is a bitmap, and the bitmap is shown in FIG. 5 .
  • the bit positions corresponding to CBG0, CBG1 and CBG2 in the bitmap are all 1, which are used to indicate that the position information of at least one encoded data sent is CBG0, CBG1 and CBG2 respectively.
  • a total of 3 CBGs are sent, among which, the initial transmission
  • the bit information corresponding to the data (ie CBG0 and CBG2) and the bit information corresponding to the retransmission data (ie CBG1) are both 1, and the bit positions of the bit map corresponding to CBG2, CBG4, CBG5, CBG6 and CBG7 are all 0, which are used to indicate CBG2, CBG4, CBG5, CBG6 and CBG7 do not send encoded data.
  • the second device After the second device receives the bitmap, it can learn that a total of 3 CBGs have been sent this time, namely CBG0, CBG1 and CBG2.
  • the second device may determine that the received CBG0 and CBG2 are initial transmission data, and the received CBG1 is retransmission data, according to the feedback information sent last time (used to indicate that CBG1 has a transmission error).
  • the data type indication is a bitmap, and the bitmap is shown in FIG. 7 .
  • the bit position corresponding to CBG1 in the bitmap is 1
  • the position information used to indicate that the sent at least one retransmission data is CBG1
  • the indication information is used to indicate that the number of initial transmission data in the sent at least one encoded data is 2 , that is, a total of 3 CBGs are sent.
  • the bit position of the bitmap corresponding to CBG0, CBG2, CBG3, CBG4, CBG5, CBG6 and CBG7 are all 0, which are used to indicate that CBG0, CBG2, CBG3, CBG4, CBG5, CBG6 and CBG7 do not send retransmission data.
  • the second device can learn that the retransmitted data sent this time is CBG1, and determine that the initially transmitted data are CBG0 and CBG2 according to the bitmap and the indication information.
  • the allocation principle of physical layer resources among CBG0, CBG1 and CBG2 may be determined according to the fact that these CBGs belong to the same transport block. For example, first allocate a preset number of bits to each CB included in the equivalent transport block composed of CBG0, CBG1 and CBG2 according to the principle of equal division as much as possible.
  • the equivalent transport block composed of CBG0, CBG1 and CBG2 has a total of Including 10 CBs, the preset number of bits is 1000 bits, then each CB is allocated 100 bits, wherein, the matching process from CB to bit is also called rate matching. Then, the preset number of bits are mapped to physical resources for transmission.
  • the CBs may be sequentially matched to a preset number of bits according to the sorting order of the CBs included in the equivalent transport block formed by CBG0, CBG1 and CBG2.
  • CBG0, CBG1 and CBG2 For a specific example, refer to the description of the foregoing implementation manner 1.
  • the encoded data to be sent next time contains at least CBG1 and at least four CBGs among CBG0, CBG2, CBG3, CBG4, CBG5, CBG6 or CBG7.
  • the following description is given by taking the transmitted encoded data including CBG0, CBG1, CBG2, CBG3 and CBG4 as an example.
  • CBG1 is retransmission data
  • the number of CBs contained in CBG1 and the size of each CB are the same as the number of CBs contained in CBG1 sent last time and the size of each CB respectively.
  • CBG0, CBG2, CBG3 and CBG4 are the initial transmission data
  • CBG0, CBG2, CBG3 and CBG4 constitute an initial transmission block.
  • the number of CBs included in CBG0 and the size of each CB may be the same or different from the number of CBs included in the last sent CBG0 and the size of each CB, respectively.
  • the number of CBs included in CBG2 and the size of each CB are the same as the last time
  • the number of CBs included in the sent CBG2 and the size of each CB may be the same or different, respectively.
  • the number of CBs included in CBG3 and the size of each CB are the same as the number of CBs included in the last sent CBG3 and the size of each CB.
  • the number of CBs and the size of each CB contained in CBG4 may be the same or different from the number of CBs and the size of each CB contained in the last sent CBG4, which may be the same or different.
  • the data type indication is a bitmap, and the bitmap is shown in FIG. 6 .
  • the bit positions corresponding to CBG0, CBG1, CBG2, CBG3 and CBG4 in the bitmap are all 1, which are used to indicate that the position information of at least one encoded data sent is CBG0, CBG1, CBG2, CBG3 and CBG4 respectively.
  • the bit information corresponding to the initial transmission data (ie CBG0, CBG2, CBG3 and CBG4) and the bit information corresponding to the retransmission data (ie CBG1) are all 1, and the bit map corresponds to the bits of CBG4, CBG6 and CBG7
  • the positions are all 0 to indicate that CBG4, CBG6 and CBG7 are not sending encoded data.
  • the second device can learn that a total of 5 CBGs have been sent this time, namely CBG0, CBG1, CBG2, CBG3 and CBG4.
  • the second device can determine that the received CBG0, CBG2, CBG3 and CBG4 are initial transmission data, and the received CBG1 is retransmission data according to the feedback information sent last time (used to indicate that CBG1 has a transmission error).
  • the data type indication is a bitmap, and the bitmap is shown in FIG. 7 .
  • the bit position corresponding to CBG1 in the bitmap is 1, the position information used to indicate that the sent at least one retransmission data is CBG1, and the indication information is used to indicate that the number of initial transmission data in the sent at least one encoded data is 4 , that is, a total of 5 CBGs are sent.
  • the bit position of the bitmap corresponding to CBG0, CBG2, CBG3, CBG4, CBG4, CBG6 and CBG7 are all 0, which are used to indicate that CBG0, CBG2, CBG3, CBG4, CBG4, CBG6 and CBG7 do not send retransmission data.
  • the second device can learn that the retransmitted data sent this time is CBG1, and determine that the initially transmitted data are CBG0, CBG2, CBG3, and CBG4 according to the bitmap and the indication information.
  • the allocation principle of physical layer resources among CBG0, CBG1, CBG2, CBG3 and CBG4 may be determined according to the fact that these CBGs belong to the same transport block. For example, first allocate a preset number of bits to each CB included in the equivalent transport block composed of CBG0, CBG1, CBG2, CBG3 and CBG4, for example, CBG0, CBG1, CBG2, CBG3 and The equivalent transport block constituted by CBG4 includes 10 CBs in total, the preset number of bits is 1000 bits, and each CB is allocated 100 bits, wherein the matching process from CB to bit is also called rate matching. Then, the preset number of bits are mapped to physical resources for transmission.
  • these CBs may be sequentially matched to a preset number of bits according to the sorting order of the CBs included in the equivalent transport blocks formed by CBG0, CBG1, CBG2, CBG3 and CBG4.
  • CBG0, CBG1, CBG2, CBG3 and CBG4 For a specific example, refer to the description of the foregoing implementation manner 1.
  • the above at least one encoded data only includes initial transmission data.
  • the first device may only send initial transmission data to the second device in one resource scheduling. For example, when encoding data is transmitted for the first time (ie, initial transmission), at least one encoded data acquired by the first device is the initial transmission data. For another example, when the encoded data transmitted last time are all correctly transmitted, the next transmission does not include retransmitted data, so at least one encoded data acquired by the first device and to be transmitted to the second device is also initially transmitted data.
  • the scheduling type indication is used to indicate that the at least one encoded data contains only initial transmission data.
  • the data type is indicated as a bitmap
  • the bitmap contains N bits
  • N is pre-configured or pre-defined or signaled
  • the value of N is used to indicate a transport block
  • the maximum number of coding blocks or coding block groups included, N is an integer greater than 1, and the bitmap is used to indicate the position information and/or quantity of at least one piece of coded data.
  • the bitmap indicates the position information and/or quantity of at least one encoded data (ie, initially transmitted data) in the transmitted encoded data.
  • the second device determines that all the data received this time is the initial transmission, and then determines the location information and/or quantity of the received initial transmission data according to the bitmap, so that the second device can obtain the initial transmission data.
  • the above at least one encoded data only includes retransmission data.
  • the first device may only send retransmission data to the second device in one resource scheduling. For example, when a transmission error occurs in part or all of the coded data transmitted last time, the first device can receive feedback information to indicate which coded data has a transmission error, and can retransmit those coded data in the next transmission. At the same time, there is no new transport block to send or there are no remaining physical resources for sending new transport blocks. At this time, only retransmission data is sent in the next transmission, that is, only the encoded data with the last transmission error is sent. .
  • the scheduling type indication is used to indicate that the at least one encoded data contains only retransmission data.
  • the data type is indicated as a bitmap
  • the bitmap contains N bits
  • N is pre-configured or pre-defined or signaled
  • the value of N is used to indicate a transport block
  • the maximum number of coding blocks or coding block groups included, N is an integer greater than 1, and the bitmap is used to indicate the position information and/or quantity of at least one piece of coded data.
  • the bitmap indicates position information and/or quantity of at least one encoded data (ie, retransmission data) in the transmitted encoded data.
  • the second device determines according to the scheduling type indication that all retransmission data is received this time, and then determines the location information and/or quantity of the received retransmission data according to the bitmap, so that the second device can obtain the retransmission data.
  • the second device may send feedback information to the first device, which is used to indicate the transmission situation of the at least one piece of encoded data, the transmission situation Either the transfer was successful or a transfer error occurred.
  • the feedback information may also be a bitmap of the same size.
  • the first device sends CBG0 to CBG3 to the second device, then the second device can inform the first device through a bitmap: which CBGs from CBG0 to CBG3 are successfully transmitted, which have transmission errors.
  • FIG. 8 it is an example diagram of feedback information.
  • the bits corresponding to CBG1, CBG2, and CBG3 are all 1, indicating that CBG1, CBG2, and CBG3 are successfully transmitted, and the bit corresponding to CBG0 is 0, indicating that CBG0 has a transmission error. Since the first device does not transmit CBG4 to CBG7, the bits corresponding to CBG4 to CBG7 in the bitmap may be set to 1, or set to 0, or not set. 8 , the bits corresponding to CBG4 to CBG7 in the bitmap are all set to 1.
  • FIG. 9 it is a schematic diagram of a communication apparatus according to an embodiment of the present application.
  • the communication apparatus 900 is used to implement each step corresponding to the first device or the second device in the foregoing embodiments.
  • the communication apparatus 900 includes a transceiver unit 910 and a processing unit 920 .
  • the communication apparatus 900 is configured to implement each step corresponding to the first device in each of the foregoing embodiments:
  • the processing unit 920 is configured to acquire at least one piece of encoded data.
  • a transceiver unit 910 configured to send a scheduling type indication and a data type indication to the second device, where the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data, retransmission data, or initial transmission data and retransmission data. transmitting data, the data type indicating location information and/or quantity for indicating part or all of the at least one encoded data; and sending the at least one encoded data to the second device.
  • the at least one encoded data includes at least one encoding block group
  • the data type indicates position information and/or position information for indicating part or all of the encoding block groups in the at least one encoding block group or quantity.
  • the at least one encoded data includes at least one transport block data and at least one encoded block data
  • the at least one transport block data is initial transmission data
  • the at least one encoded block data is retransmission data data
  • the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data and retransmission data.
  • the data type indication is a bitmap
  • the bitmap includes N bits
  • the N is pre-configured or pre-defined or signaled
  • the value of N is The value is used to indicate the maximum number of encoding block groups included in a transport block, N is an integer greater than 1, and the bitmap is used to indicate the position information and/or quantity of the at least one encoded data.
  • the data type indication is a bitmap, the bitmap includes N bits, and the N is pre-configured or pre-defined or signaled, and the value of N is The value is used to indicate the maximum value of the number of coding block groups included in a transport block, N is an integer greater than 1, and the bitmap is used to indicate the position information and/or quantity of the at least one coding block data;
  • the unit 910 is further configured to send indication information to the second device, where the indication information is used to indicate the location information and/or quantity of the at least one transport block data, and the quantity of the at least one transport block data is the The number of encoded block groups in at least one transport block data.
  • the number, position information and size of the coding block groups included in the at least one coding block data are the same as the number and position of the coding block groups included in the at least one coding block data during initial transmission.
  • the information and size correspond to the same.
  • the location information and size of the encoding block group included in the at least one transmission block data are the same as the location information and size of the encoding block group included in the encoded data successfully transmitted in the last transmitted encoded data.
  • the location information and size of the encoding block group included in the at least one transmission block data are the same as the location information and size of the encoding block group included in the partial encoded data in the encoded data that was successfully transmitted last time.
  • the processing unit 920 is further configured to determine the size and quantity of the encoding block group included in the at least one transport block data according to the physical resources and the modulation and coding scheme used for the at least one encoded data .
  • the at least one encoded data includes at least one transport block data, the at least one transport block data is initial transmission data, and the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data. transmit data; or
  • the at least one encoded data includes at least one encoded block data, and the at least one encoded block data is retransmission data, and the scheduling type indication is used to indicate that the at least one encoded data includes retransmission data.
  • the transceiver unit 910 configured to send the at least one encoded data to the second device, specifically includes: mapping the at least one encoded data to a first physical resource and sending it to In the second device, a mapping manner in which a coding block or a coding block group included in the at least one coded data is mapped to the first physical resource satisfies a predefined transport block mapping rule.
  • the communication apparatus 900 is configured to implement each step corresponding to the second device in each of the foregoing embodiments:
  • a transceiver unit 910 configured to receive at least one encoded data from the first device; and receive a scheduling type indication and a data type indication from the first device, where the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data , contains retransmission data, or contains initial transmission data and retransmission data, and the data type indicates position information and/or quantity for indicating part or all of the encoded data in the at least one encoded data.
  • the processing unit 920 is configured to acquire the at least one encoded data according to the scheduling type indication and the data type indication.
  • the at least one encoded data includes at least one encoding block group
  • the data type indicates position information and/or position information for indicating part or all of the encoding block groups in the at least one encoding block group or quantity.
  • the at least one encoded data includes at least one transport block data and at least one encoded block data
  • the at least one transport block data is initial transmission data
  • the at least one encoded block data is retransmission data data
  • the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data and retransmission data
  • the processing unit 920 is configured to obtain the at least one encoded data according to the scheduling type indication and the data type indication
  • the data specifically includes: according to the scheduling type indication and the data type indication, respectively acquiring the at least one transport block data and the at least one encoding block data.
  • the data type indication is a bitmap
  • the bitmap includes N bits
  • the N is pre-configured or pre-defined or signaled
  • the value of N is The value is used to indicate the maximum number of encoding block groups included in a transport block, N is an integer greater than 1, and the bitmap is used to indicate the position information and/or quantity of the at least one encoded data.
  • the data type indication is a bitmap, the bitmap includes N bits, and the N is pre-configured or pre-defined or signaled, and the value of N is The value is used to indicate the maximum value of the number of coding block groups included in a transport block, N is an integer greater than 1, and the bitmap is used to indicate the position information and/or quantity of the at least one coding block data;
  • the unit 910 is further configured to receive indication information from the first device, where the indication information is used to indicate the location information and/or quantity of the at least one transport block data, and the quantity of the at least one transport block data is all The number of coded block groups in the at least one transport block data.
  • the processing unit 920 is configured to obtain the at least one transport block data and the at least one encoding block data according to the scheduling type indication and the data type indication, respectively, and specifically includes: according to the scheduling type indication, the data The type indication and the indication information are used to obtain the at least one transport block data and the at least one encoding block data, respectively.
  • the number, position information and size of the coding block groups included in the at least one coding block data are the same as the number and position of the coding block groups included in the at least one coding block data during initial transmission.
  • the information and size correspond to the same.
  • the location information and size of the encoding block group included in the at least one transmission block data are the same as the location information and size of the encoding block group included in the encoded data successfully transmitted in the last transmitted encoded data.
  • the location information and size of the encoding block group included in the at least one transmission block data are the same as the location information and size of the encoding block group included in the partial encoded data in the encoded data that was successfully transmitted last time.
  • the processing unit 920 is further configured to determine the size and quantity of the encoding block group included in the at least one transport block data according to the physical resources and the modulation and coding scheme used for the at least one encoded data .
  • the at least one encoded data includes at least one transport block data, the at least one transport block data is initial transmission data, and the scheduling type indication is used to indicate that the at least one encoded data includes initial transmission data. or the at least one encoded data includes at least one encoded block data, the at least one encoded block data is retransmission data, and the scheduling type indication is used to indicate that the at least one encoded data includes retransmission data.
  • the transceiver unit 910 configured to receive at least one encoded data from a first device, specifically includes: being configured to receive the at least one encoded data from the first device mapped to the first physical resource A piece of encoded data, wherein the mapping manner in which the encoded block or the encoded block group included in the at least one encoded data is mapped to the first physical resource satisfies a predefined transport block mapping rule.
  • the above-mentioned communication device may further include a storage unit, which is used to store data or instructions (also referred to as codes or programs), and each of the above-mentioned units may interact or be coupled with the storage unit to implement corresponding methods or functions.
  • the processing unit 920 may read data or instructions in the storage unit, so that the communication apparatus implements the methods in the above embodiments.
  • each unit in the above communication apparatus can all be implemented in the form of software calling through the processing element; also can all be implemented in the form of hardware; some units can also be implemented in the form of software calling through the processing element, and some units can be implemented in the form of hardware.
  • each unit can be a separately established processing element, or can be integrated in a certain chip of the communication device to realize, in addition, it can also be stored in the memory in the form of a program, which can be called and executed by a certain processing element of the communication device. function of the unit.
  • each step of the above method or each of the above units may be implemented by an integrated logic circuit of hardware in the processor element or implemented in the form of software being invoked by the processing element.
  • a unit in any of the above communication devices may be one or more integrated circuits configured to implement the above method, such as: one or more application specific integrated circuits (ASICs), or, an or multiple microprocessors (digital singnal processors, DSP), or, one or more field programmable gate arrays (FPGA), or a combination of at least two of these integrated circuit forms.
  • ASICs application specific integrated circuits
  • DSP digital singnal processors
  • FPGA field programmable gate arrays
  • a unit in the communication device can be implemented in the form of a processing element scheduler
  • the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processors that can invoke programs.
  • CPU central processing unit
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • the communication apparatus includes: at least one processor 1010 and an interface 1030 , and optionally, the communication apparatus further includes a memory 1020 .
  • the interface 1030 is used to implement communication with other devices.
  • the communication apparatus may be a chip system or an integrated circuit in the first device or the second device.
  • the method performed by the first device or the second device in the above embodiments may be implemented by the processor 1010 calling a program stored in a memory (which may be the memory 1020 in the first device or the second device, or an external memory). That is, the first device or the second device may include a processor 1010, and the processor 1010 executes the method performed by the first device or the second device in the above method embodiments by calling a program in the memory.
  • the processor here may be an integrated circuit with signal processing capability, such as a CPU.
  • the first device or the second device may be implemented by one or more integrated circuits configured to implement the above methods. For example: one or more ASICs, or, one or more microprocessor DSPs, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms. Alternatively, the above implementations may be combined.
  • the functions/implementation process of the transceiver unit 910 and the processing unit 920 in FIG. 9 may be implemented by the processor 1010 in the communication apparatus 1000 shown in FIG. 10 calling computer executable instructions stored in the memory 1020 .
  • the function/implementation process of the processing unit 920 in FIG. 9 can be implemented by the processor 1010 in the communication apparatus 1000 shown in FIG. 10 calling the computer-executed instructions stored in the memory 1020, and the function of the transceiver unit 910 in FIG. 9
  • the implementation process may be implemented through the interface 1030 in the communication device 1000 shown in FIG. 10 .
  • the function/implementation process of the transceiver unit 910 may be implemented by the processor calling program instructions in the memory to drive the interface 1030 .
  • An embodiment of the present application further provides a terminal, where the terminal may be a vehicle or a smart device, where the vehicle or smart device includes at least one of the first device, the second device, or the communication apparatus 1000 .
  • the terminal may be a smart home device, a smart wearable device, a drone, an unmanned transport vehicle, a car, or a robot.
  • An embodiment of the present application further provides a communication system, where the communication system includes the first device in any of the foregoing embodiments and the second device in any of the foregoing embodiments.
  • An embodiment of the present application further provides a chip, including at least one processor and an interface.
  • the interface is used to provide program instructions or data for at least one processor.
  • the at least one processor is configured to execute program instructions to implement the method in any of the above-described embodiments.
  • FIG. 11 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 1100 includes one or more processors 1101 and an interface circuit 1102 .
  • the chip 1100 may further include a bus 1103 . in:
  • the processor 1101 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method may be completed by an integrated logic circuit of hardware in the processor 1101 or an instruction in the form of software.
  • the above-mentioned processor 1101 may be a general purpose processor, a digital communicator (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components .
  • DSP digital communicator
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the interface circuit 1102 can be used for sending or receiving data, instructions or information.
  • the processor 1101 can use the data, instructions or other information received by the interface circuit 1102 to process, and can send the processing completion information through the interface circuit 1102.
  • the chip further includes a memory, which may include a read-only memory and a random access memory, and provides operation instructions and data to the processor.
  • a portion of the memory may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the memory stores executable software modules or data structures
  • the processor may execute corresponding operations by calling operation instructions stored in the memory (the operation instructions may be stored in the operating system).
  • the chip may be used in the communication apparatus (including the master node and the slave node) involved in the embodiments of the present application.
  • the interface circuit 1102 may be used to output the execution result of the processor 1101 .
  • processor 1101 and the interface circuit 1102 can be implemented by hardware design, software design, or a combination of software and hardware, which is not limited here.
  • At least one item (single, species) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.
  • “Plurality" means two or more, and other quantifiers are similar.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server, or data center is by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that a computer can access, or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state disks (SSDs)), and the like.
  • a general-purpose processor may be a microprocessor, or alternatively, the general-purpose processor may be any conventional processor, controller, microcontroller, or state machine.
  • a processor may also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors in combination with a digital signal processor core, or any other similar configuration. accomplish.
  • the steps of the method or algorithm described in the embodiments of this application may be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • Software units can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read-Only Memory, ROM), EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or this.
  • RAM Random Access Memory
  • ROM read-only memory
  • EPROM memory read-only memory
  • EEPROM memory electrically erasable programmable read-only memory
  • registers hard disk, removable disk, CD-ROM or this.
  • a storage medium may be coupled to the processor such that the processor may read information from, and store information in, the storage medium.
  • the storage medium can also be integrated into the processor.
  • the processor and storage medium may be provided in the ASIC.
  • the above-described functions described herein may be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, the functions may be stored on, or transmitted over, a computer-readable medium in the form of one or more instructions or code.
  • Computer-readable media includes computer storage media and communication media that facilitate the transfer of a computer program from one place to another. Storage media can be any available media that a general-purpose or special-purpose computer can access.
  • Such computer-readable media may include, but are not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other device that can be used to carry or store instructions or data structures and Other media in the form of program code that can be read by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
  • any connection is properly defined as a computer-readable medium, for example, if software is transmitted from a website site, server or other remote source over a coaxial cable, fiber optic computer, twisted pair, digital subscriber line (DSL) Or transmitted by wireless means such as infrared, wireless, and microwave are also included in the definition of computer-readable media.
  • DSL digital subscriber line
  • the discs and magnetic discs include compact discs, laser discs, optical discs, digital versatile discs (English: Digital Versatile Disc, DVD for short), floppy discs and Blu-ray discs. Disks usually reproduce data magnetically, while Discs usually use lasers to optically reproduce data. Combinations of the above can also be included in computer readable media.
  • the functions described in this application may be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.

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Abstract

一种短距离通信方法、装置及系统，方法包括：获取至少一个编码数据；向第二设备发送调度类型指示和数据类型指示，调度类型指示用于指示至少一个编码数据包含初传数据、包含重传数据、或者包含初传数据和重传数据，数据类型指示用于指示至少一个编码数据中的部分或全部编码数据的位置信息和/或数量；以及向第二设备发送至少一个编码数据。

Description

一种短距离通信方法、装置及系统 技术领域
本申请涉及通信技术领域，尤其涉及一种短距离通信方法、装置及系统。
背景技术
在通信系统中，通常一个下行控制信息(Downlink control information，DCI)可以调度一个或多个传输块(Transport Block，TB)。通常情况下，由于信道编码长度的限制，一个传输块会切分成多个编码块或编码块组，一个编码块组包含一个或多个编码块。发送端向接收端发送传输块，接收端会根据接收情况反馈编码块或编码块组是否接收正确，发送端根据接收端的反馈情况确定后续是发送新的传输块，还是重传发生错误的编码块或者编码块组。
现有技术中，规定发送端每次发送的数据，要么是新的传输块，要么是发生传输错误的编码块或编码块组。
在短距通信中，系统可用带宽比较大，如20MHz或80MHz的带宽，并且同时支持的用户数比较少，这样对于某个用户来说，传输块就比较大。在某次传输的时候，可能只有个别编码块或者编码块组发生传输错误，因此在重传时，仅发送发生传输错误的编码块或者发生传输错误的编码块组，将造成严重的资源浪费。
发明内容
本申请提供一种短距离通信方法、装置及系统，用以实现减少资源浪费。
第一方面，本申请实施例提供一种短距离通信方法，该方法可以由第一设备执行，也可以由第一设备的部件(例如处理器、芯片、或芯片系统等)执行，包括：获取至少一个编码数据；向第二设备发送调度类型指示和数据类型指示，该调度类型指示用于指示该至少一个编码数据包含初传数据、包含重传数据、或者包含初传数据和重传数据，该数据类型指示用于指示该至少一个编码数据中的部分或全部编码数据的位置信息和/或数量；以及向该第二设备发送该至少一个编码数据。
基于上述方案，在向第二设备发送编码数据时，可以根据当前可用的物理资源以及需要发送的编码数据，选择仅发送初传数据、或仅发送重传数据、或发送初传数据和重传数据，从而最大程度利用可用的物理资源，以实现提高物理资源利用率，减少资源的浪费。
在一种可能的实现方法中，该至少一个编码数据包含至少一个编码块组，该数据类型指示用于指示该至少一个编码块组中的部分或全部编码块组的位置信息和/或数量。
基于该方案，以编码块组的粒度来传输编码数据，可以提升数据传输的效率。
在一种可能的实现方法中，该至少一个编码数据包含至少一个传输块数据以及至少一个编码块数据，该至少一个传输块数据为初传数据，该至少一个编码块数据为重传数据，该调度类型指示用于指示该至少一个编码数据包含初传数据和重传数据。
其中，至少一个传输块数据包含一个或多个初传编码块，或者包含一个或多个初传编码块组。至少一个编码块数据包含一个或多个重传编码块，或者包含一个或多个重传编码 块组。
基于该方案，当混合传输时，可以同时传输至少一个传输块数据和至少一个编码块数据，从而提升资源利用率，减少资源浪费。
在一种可能的实现方法中，该数据类型指示为比特位图，该比特位图包含N个比特，该N为预先配置或者预先定义的或者信令通知的，该N的取值用于指示一传输块所包含的编码块组个数的最大值，N为大于1的整数，该比特位图用于指示该至少一个编码数据的位置信息和/或数量。
基于该方案，数据类型指示是以比特位图的方式进行实现，实现较为简便灵活。
在一种可能的实现方法中，该数据类型指示为比特位图，该比特位图包含N个比特，该N为预先配置或者预先定义的或者信令通知的，该N的取值用于指示一传输块所包含的编码块组个数的最大值，N为大于1的整数，该比特位图用于指示该至少一个编码块数据的位置信息和/或数量。
基于该方案，数据类型指示是以比特位图的方式进行实现，实现较为简便灵活。
在一种可能的实现方法中，向该第二设备发送指示信息，该指示信息用于指示该至少一个传输块数据的位置信息和/或数量，该至少一个传输块数据的数量为该至少一个传输块数据中的编码块组的个数。
基于该方案，通过指示信息指示初传数据的数量，可以使得第二设备准确确定初传数据的数量，可以使得第二设备准确确定编码数据的类型。
在一种可能的实现方法中，该至少一个编码块数据包含的编码块组的数量、位置信息及大小，与该至少一个编码块数据在初传时包含的编码块组的数量、位置信息及大小对应相同。
基于该方案，两次传输时，重传数据包含编码块组的数量、位置信息及大小，与该重传数据初传时包含的编码块组的数量、位置信息及大小对应相同，保障了重传数据的正确发送，且实现较为简便。
在一种可能的实现方法中，该至少一个传输块数据包含的编码块组的位置信息以及大小，与上一次传输的编码数据中传输成功的编码数据包含的编码块组的位置信息及大小相同；或者，所述至少一个传输块数据包含的编码块组的位置信息以及大小，与上一次传输成功的编码数据中的部分编码数据所包含的编码块组的位置信息及大小相同。
基于该方案，初传数据包含的编码块组的位置信息以及大小，与上一次传输的编码数据中传输成功的编码数据包含的编码块组的位置信息及大小相同，或者，与上一次传输成功的编码数据中的部分编码数据所包含的编码块组的位置信息及大小相同，实现起来较为简便，有利于提升传输性能。
在一种可能的实现方法中，根据用于该至少一个编码数据的物理资源以及调制编码方案，确定该至少一个传输块数据包含的编码块组的大小和数量。
在一种可能的实现方法中，该至少一个编码数据包含至少一个传输块数据，该至少一个传输块数据为初传数据，该调度类型指示用于指示该至少一个编码数据包含初传数据；或者该至少一个编码数据包含至少一个编码块数据，该至少一个编码块数据为重传数据，该调度类型指示用于指示该至少一个编码数据包含重传数据。
在一种可能的实现方法中，向该第二设备发送该至少一个编码数据，包括：将该至少一个编码数据映射到第一物理资源上发送至该第二设备，该至少一个编码数据包含的编码 块或编码块组映射到该第一物理资源的映射方式满足预先定义的传输块映射规则。
第二方面，本申请实施例提供一种短距离通信方法，该方法可以由第二设备执行，也可以由第二设备的部件(例如处理器、芯片、或芯片系统等)执行，包括：接收来自第一设备的至少一个编码数据；以及接收来自第一设备的调度类型指示和数据类型指示，该调度类型指示用于指示该至少一个编码数据包含初传数据、包含重传数据、或者包含初传数据和重传数据，该数据类型指示用于指示该至少一个编码数据中的部分或全部编码数据的位置信息和/或数量；根据该调度类型指示和该数据类型指示，获取该至少一个编码数据。
基于上述方案，从第一设备接收的编码数据是根据当前可用的物理资源确定的，具体的，从第一设备接收的编码数据仅包含初传数据、或仅包含重传数据、或包含初传数据和重传数据，从而最大程度利用可用的物理资源，以实现提高物理资源利用率，减少资源的浪费。
在一种可能的实现方法中，该至少一个编码数据包含至少一个编码块组，该数据类型指示用于指示该至少一个编码块组中的部分或全部编码块组的位置信息和/或数量。
基于该方案，以编码块组的粒度来传输编码数据，可以提升数据传输的效率。
在一种可能的实现方法中，该至少一个编码数据包含至少一个传输块数据以及至少一个编码块数据，该至少一个传输块数据为初传数据，该至少一个编码块数据为重传数据，该调度类型指示用于指示该至少一个编码数据包含初传数据和重传数据；根据该调度类型指示和该数据类型指示，获取该至少一个编码数据，包括：根据该调度类型指示和该数据类型指示，分别获取该至少一个传输块数据和至少一个编码块数据。
基于该方案，当混合传输时，可以同时传输至少一个传输块数据和至少一个编码块数据，从而提升资源利用率，减少资源浪费。
在一种可能的实现方法中，该数据类型指示为比特位图，该比特位图包含N个比特，该N为预先配置或者预先定义的或者信令通知的，该N的取值用于指示一传输块所包含的编码块组个数的最大值，N为大于1的整数，该比特位图用于指示该至少一个编码数据的位置信息和/或数量。
基于该方案，数据类型指示是以比特位图的方式进行实现，实现较为简便灵活。
在一种可能的实现方法中，该数据类型指示为比特位图，该比特位图包含N个比特，该N为预先配置或者预先定义的或者信令通知的，该N的取值用于指示一传输块所包含的编码块组个数的最大值，N为大于1的整数，该比特位图用于指示该至少一个编码块数据的位置信息和/或数量。
基于该方案，数据类型指示是以比特位图的方式进行实现，实现较为简便灵活。
在一种可能的实现方法中，接收来自该第一设备的指示信息，该指示信息用于指示该至少一个传输块数据的位置信息和/或数量，该至少一个传输块数据的数量为该至少一个传输块数据中的编码块组的个数；根据该调度类型指示和该数据类型指示，分别获取该至少一个传输块数据和至少一个编码块数据，包括：根据该调度类型指示、该数据类型指示和该指示信息，分别获取该至少一个传输块数据和至少一个编码块数据。
在一种可能的实现方法中，该至少一个编码块数据包含的编码块组的数量、位置信息及大小，与该至少一个编码块数据在初传时包含的编码块组的数量、位置信息及大小对应相同。
基于该方案，两次传输时，重传数据包含编码块组的数量、位置信息及大小，与该重 传数据初传时包含的编码块组的数量、位置信息及大小对应相同，保障了重传数据的正确发送，且实现较为简便。
在一种可能的实现方法中，该至少一个传输块数据包含的编码块组的位置信息以及大小，与上一次传输的编码数据中传输成功的编码数据包含的编码块组的位置信息及大小相同；或者，所述至少一个传输块数据包含的编码块组的位置信息以及大小，与上一次传输成功的编码数据中的部分编码数据所包含的编码块组的位置信息及大小相同。
基于该方案，初传数据包含的编码块组的位置信息以及大小，与上一次传输的编码数据中传输成功的编码数据包含的编码块组的位置信息及大小相同，或者，与上一次传输成功的编码数据中的部分编码数据所包含的编码块组的位置信息及大小相同，实现起来较为简便，有利于提升传输性能。
在一种可能的实现方法中，根据用于该至少一个编码数据的物理资源以及调制编码方案，确定该至少一个传输块数据包含的编码块组的大小和数量。
在一种可能的实现方法中，该至少一个编码数据包含至少一个传输块数据，该至少一个传输块数据为初传数据，该调度类型指示用于指示该至少一个编码数据包含初传数据；或者该至少一个编码数据包含至少一个编码块数据，该至少一个编码块数据为重传数据，该调度类型指示用于指示该至少一个编码数据包含重传数据。
在一种可能的实现方法中，该接收来自第一设备的至少一个编码数据，包括：接收来自该第一设备的映射到第一物理资源上的该至少一个编码数据，该至少一个编码数据包含的编码块或编码块组映射到该第一物理资源的映射方式满足预先定义的传输块映射规则。
第三方面，本申请实施例提供一种通信装置，该装置可以是第一设备，还可以是用于第一设备的芯片。该装置具有实现上述第一方面或基于第一方面的各可能的实现方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第四方面，本申请实施例提供一种通信装置，该装置可以是第二设备，还可以是用于第二设备的芯片。该装置具有实现上述第二方面或基于第二方面的各可能的实现方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第五方面，本申请实施例提供一种通信装置，包括处理器，处理器与存储器耦合，存储器用于存储程序或指令，当程序或指令被处理器执行时，使得该装置实现上述第一方面、第二方面、基于第一方面的各可能的实现方法、或基于第二方面的各可能的实现方法中的方法。该存储器可以位于该装置之内，也可以位于该装置之外。且该处理器包括一个或多个。
第六方面，本申请实施例提供一种通信装置，包括用于执行上述第一方面、或第二方面、或基于第一方面的各可能的实现方法、或基于第二方面的各可能的实现方法的各个步骤的单元或手段(means)。
第七方面，本申请实施例提供一种通信装置，包括至少一个处理器和接口。所述接口用于为所述至少一个处理器提供程序指令或者数据，所述至少一个处理器用于执行所述程序指令，以实现上述第一方面、或第二方面、或基于第一方面的各可能的实现方法、或基于第二方面的各可能的实现方法。
第八方面，本申请实施例还提供一种计算机可读存储介质，包括指令，当其在计算机 上运行时，使得计算机执行上述第一方面、或第二方面、或基于第一方面的各可能的实现方法、或基于第二方面的各可能的实现方法。
第九方面，本申请实施例还提供一种计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面、或第二方面、或基于第一方面的各可能的实现方法、或基于第二方面的各可能的实现方法。
第十方面，本申请实施例还提供一种芯片系统，包括处理器，处理器与存储器耦合，存储器用于存储程序或指令，当程序或指令被处理器执行时，使得该芯片系统实现上述第一方面、第二方面、基于第一方面的各可能的实现方法、或基于第二方面的各可能的实现方法中的方法。该存储器可以位于该芯片系统之内，也可以位于该芯片系统之外。且该处理器包括一个或多个。
第十一方面，本申请实施例还提供一种通信系统，包括用于执行上述第一方面或基于第一方面的任一可能的实现方法的第一设备，和用于执行上述第二方面或基于第二方面的任一可能的实现方法的第二设备。
第十二方面，本申请实施例还提供一种终端，包括至少一个处理器和存储器。所述存储器用于存储计算机执行指令，当所述终端运行时，所述至少一个处理器执行所述存储器存储的计算机执行指令，以使所述终端执行上述第一方面、第二方面、基于第一方面的各可能的实现方法、或基于第二方面的各可能的实现方法中的方法。
附图说明
图1为传输块与编码块关系示意图；
图2(a)为传输块与编码块组关系的一个示意图；
图2(b)为传输块与编码块组关系的另一示意图；
图3为本申请实施例提供的一种短距离通信方法流程示意图；
图4(a)为本申请实施例提供的一种比特位图示意图；
图4(b)为本申请实施例提供的又一种比特位图示意图；
图5为本申请实施例提供的又一种比特位图示意图；
图6为本申请实施例提供的又一种比特位图示意图；
图7为本申请实施例提供的又一种比特位图示意图；
图8为反馈信息的一个示例图；
图9为本申请实施例提供的一种通信装置示意图；
图10为本申请实施例提供的又一种通信装置示意图；
图11为本申请实施例提供的一种芯片的结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。方法实施例中的具体操作方法也可以应用于装置实施例或系统实施例中。其中，在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
本申请实施例可以应用于多种场景。例如智能家居通信、智能运输通信、机器人通信、无人机通信等包含智能终端的场景。在一个示例中，本申请实施例可以应用于车载应用场 景。车载应用的多样化，使得车内通信节点数量、类型都越来越多，对于车载通信的能力提出了更高的要求。由于相比现有的有线通信，车载无线可以进一步降低车内线束数量、长度、重量，以及与之对应的安装、维护、保养成本，车载通信技术有逐步无线化的趋势。通常，车内存在多个通信域，一个通信域包括一个主节点和至少一个从节点，其中主节点调度从节点，实现主从节点间互相传输数据。本申请实施例中的发送设备(也称为第一设备)可以是车载通信中的主节点，接收设备(也称为第二设备)可以是车载通信中的从节点。或者，发送设备是车载通信中的从节点，接收设备是车载通信中的主节点。
在又一个示例中，本申请实施例可以应用于家庭场景。在家庭场景下，支持的用户数可能比较少，但是可用带宽一般都比较宽，如40MHz、80MHz，假如都给一个用户的话，其传输块就相当的大，为了降低信号处理时延及提升资源利用率，一般将传输块切分成多个编码块(code block，CB)或编码块组(code block group，CBG)，然后经过信道编码等步骤后发送给接收设备(也称为第二设备)。在传输的过程中，由于信道衰落及干扰等的影响，会造成个别编码块或编码块组发生传输错误，这样接收设备可以反馈哪些编码块或编码块组发生传输错误，发送设备在下次传输时可以发送发生传输错误的编码块或编码块组，并且可同时发送一些新的编码块或编码块组，从而提升系统的容量。
在又一个示例中，本申请实施例可以应用于空口通信。发送设备可以是终端设备，接收设备可以是基站。或者，发送设备是基站，接收设备是终端设备。
作为一种实现方法，本申请实施例中，可以将一个传输块划分为多个编码块。对一个传输块实际包含的编码块的数量(用C表示)不做限定，比如可以由传输块到编码块的切分规则或其它方式确定一个传输块实际包含的编码块的数量。如图1所示，为传输块与编码块关系示意图。从图1上半部分可以看出，C＝14。从图1下半部分可以看出，某个传输块实际包含7个编码块(CB0至CB6)。
作为另一种实现方法，本申请实施例中，也可以将一个传输块划分为多个编码块组，每个编码块组包含一个或多个编码块。其中，可以通过高层信令或者物理层信令配置一个传输块最多包含的编码块组的数量(用N表示)。这样每个传输块实际包含的编码块组的数量(用M表示)不超于N。本申请实施例对一个传输块实际包含的编码块的数量(用C表示)不做限定，比如可以由传输块到编码块的切分规则或其它方式确定一个传输块实际包含的编码块的数量。其中，满足M＝min(C，N)，即M为C和N之间的较小值。可选地，定义M 1＝mod(C,M)，
Figure PCTCN2020106669-appb-000001
一种场景中，M 1>0,K 1表示编码块组序号为0至M 1-1时每个编码块组包含的编码块的个数，K 2表示编码块组序号为M 1至M-1时每个编码块组包含的编码块的个数，mod表示取模运算，
Figure PCTCN2020106669-appb-000002
表示向上取整，
Figure PCTCN2020106669-appb-000003
表示向下取整；又一种场景中，M 1＝0，则此时每个编码块组包含的编码块个数相同。如图2(a)所示，为传输块与编码块组关系的一个示意图，该图示出了当C小于N时的情形。假设C＝2，则将两个编码块分别划分到两个编码块组中，具体的，CBG0＝{CB0}，CBG1＝{CB1}。 也即，M＝min(2,4)＝2。如图2(b)所示，为传输块与编码块组关系的又一示意图，该图示出了当C大于N时的情形。假设C＝14，则将14个编码块分别划分到4个编码块组中，具体的，CBG0＝{CB0，CB1，CB2，CB3}，CBG1＝{CB4，CB5，CB6，CB7}，CBG2＝{CB8，CB9，CB10}，CBG3＝{CB11，CB12，CB13}。也即，M＝min(14,4)＝4。
本申请实施例既适用于将传输块划分为一个或多个编码块的场景，也适用于将传输块划分为一个或多个编码块组的场景(其中，一个编码块组包含一个或多个编码块)。在将传输块划分为一个或多个编码块的场景中，可以将编码块称为编码数据或编码块数据。在将传输块划分为一个或多个编码块组的场景中，可以将编码块组称为编码数据或编码块数据。也即，本申请以下实施例中所述的编码数据或编码块数据，可以是编码块，也可以是编码块组。
为解决背景技术提到的技术问题，本申请实施例提供一种短距离通信方法，该方法在每次发送编码数据时，可以仅发送初传数据(也称为新传数据)，可以仅发送重传数据，还可以一起发送初传数据和重传数据，从而最大化利用物理资源，避免物理资源因利用率低而导致的资源浪费。
如图3所示，为本申请实施例提供的一种短距离通信方法流程示意图，该方法在发送侧，可以由第一设备或第一设备的部件(例如处理器、芯片、或芯片系统等)执行，在接收侧，可以由第二设备或第二设备的部件(例如处理器、芯片、或芯片系统等)执行。以下以第一设备和第二设备执行该方法为例进行说明，该方法包括以下步骤：
步骤301，第一设备获取至少一个编码数据。
在将传输块划分为一个或多个编码块的场景中，第一设备获取至少一个编码数据指的是获取至少一个编码数据块。在将传输块划分为一个或多个编码块组的场景中，第一设备获取至少一个编码数据指的是获取至少一个编码数据块组，每个编码块组包含一个或多个编码数据块。这里需要说明的是，本申请不对传输块包含的编码块组的个数、传输块包含的编码块的个数、编码块组包含的编码块的个数进行具体限定，具体可以参见上文的阐述或者根据具体的通信场景配置或者确定。
这里的至少一个编码数据指的是将要发送至第二设备的编码数据。
在第一种情形中，这里的至少一个编码数据可以包含初传数据和重传数据。比如，当上次传输的编码数据中的部分或全部编码数据发生传输错误，则第一设备可以收到反馈信息，指示哪些编码数据发生传输错误，因此下次传输时可以重传那些发生传输错误的编码数据。同时，如果还有新的传输块需要发送且有剩余的物理资源用于发送新的传输块，则可以下次传输时同时发送初传数据(即新的传输块)和重传数据(即上次发生传输错误的编码数据)。在第一种情形下的数据传输，也可以称为混合传输。
在第二种情形中，这里的至少一个编码数据可以只包含初传数据。比如，在第一次传输编码数据(即初传)时，第一设备获取的至少一个编码数据均为初传数据。再比如，当上次传输的编码数据均传输正确，则下次传输中不包含重传数据，因此第一设备获取的将要传输至第二设备的至少一个编码数据也均为初传数据。
在第三种情形中，这里的至少一个编码数据可以只包含重传数据。比如，当上次传输 的编码数据中的部分或全部编码数据发生传输错误，则第一设备可以收到反馈信息，指示哪些编码数据发生传输错误，在下次传输中可以重传那些发生传输错误的编码数据，同时又没有新的传输块需要发送或者没有剩余的物理资源用于发送新的传输块，此时在下次传输中仅发送重传数据，也即仅发送上次发生传输错误的编码数据。
本申请实施例中，发送编码数据的原则是：尽可能最大利用物理资源，在一次传输中发送尽可能多的编码数据，以实现充分利用物理资源，减少资源浪费。因此，当有初传数据和重传数据能够同时传输时，则使用混合传输方式进行传输。
步骤302，第一设备向第二设备发送调度类型指示和数据类型指示中的至少一个。相应地，第二设备接收调度类型指示和数据类型指示中的至少一个。
一种具体的实现中，所述第一设备向第二设备发送调度类型指示和数据类型指示。即两种指示都需要发送给第二设备，相应的，第二设备接收上述两种指示。
在具体实现中，调度类型指示和数据类型指示的实现方法包括但不限于以下方法一和方法二。
方法一，调度类型指示用于指示至少一个编码数据包含初传数据、包含重传数据、或者包含初传数据和重传数据。数据类型指示用于指示该至少一个编码数据中的部分或全部编码数据的位置信息(比如可以是编号、索引等)和/或数量。这里需要说明的是，所述至少一个编码数据包含初传数据表征所述至少一个编码数据不包含重传数据(也可以理解为，从数据传输角度来说，所述至少一个编码数据仅包含初传数据)，所述至少一个编码数据包含重传数据表征所述至少一个编码数据不包含初传数据(也可以理解为，从数据传输的角度来说，所述至少一个编码数据仅包含重传数据)。
一种实现中，该至少一个编码数据包含至少一个编码块，则调度类型指示用于指示至少一个编码块包含初传数据、包含重传数据、或者包含初传数据和重传数据，数据类型指示用于指示至少一个编码块中的部分或全部编码块的位置信息和/或数量。
又一种实现中，该至少一个编码数据包含至少一个编码块组，则调度类型指示用于指示至少一个编码块组包含初传数据、包含重传数据、或者包含初传数据和重传数据，数据类型指示用于指示至少一个编码块组中的部分或全部编码块组的位置信息和/或数量。
作为示例，该调度类型指示可以用2比特组成的字段来指示，例如用00、01、10分别指示上述三种类型。需要说明的是，上述示例中，是以00、01、10分别指示上述三种类型为例，实际中可以是00，01，10，11中的任意三种来指示上述三种类型。作为另一示例，还可以将上述重传数据划分为以传输块为单位的重传数据和以编码块组为单位的重传数据，也即该调度类型指示可以用2比特组成的字段来指示，例如00用于指示至少一个编码数据包含初传数据，01用于指示至少一个编码数据包含以传输块为单位的重传数据，10用于指示至少一个编码数据包含以编码块为单位的重传数据，11用于指示至少一个编码数据包含以传输块为单位的初传数据和重传数据(该重传数据可以是以传输块为单位，也可以是以编码块为单位)。或者表述为：00用于指示以传输块为单位的初传，01用于指示以传输块为单位的重传，10用于指示用于指示以编码块组为单位的重传，11用于指示混合传输。需要说明的是，上述示例中，关于00，01，10，11具体指示四种含义中的哪一种不做限定，可以在具体实施时确定。作为另一示例，也可以用隐式的方式指示该至少一个编码数据的类型。例如某个字段Modulation and coding scheme在正常情况下取值范围为0至12，可以根据其取值确定是哪种类型。比如取值在上述范围内，则判断是仅包含初传数据 或者同时包含初传数据和重传数据，并且可以通过具体取值判断是仅包含初传数据还是同时包含初传数据和重传数据。再比如取值不在上述范围内，则是仅包含重传数据。需要说明的是，当调度类型指示用于指示该至少一个编码数据仅包含初传数据，也可以理解为该调度类型指示用于指示仅新传或仅初传。当调度类型指示用于指示该至少一个编码数据仅包含重传数据，也可以理解为该调度类型指示用于指示仅重传。当调度类型指示用于指示该至少一个编码数据包含初传数据和重传数据，也可以理解为该调度类型指示用于指示混合传输。
一种场景中，调度类型指示用于指示至少一个编码数据包含初传数据，则该数据类型指示用于指示该至少一个编码数据的位置信息和/或数量，该至少一个编码数据均为初传数据，从而第二设备可以根据数据类型指示以及调度类型指示获取到初传数据。
又一种场景中，调度类型指示用于指示至少一个编码数据包含重传数据，则该数据类型指示用于指示该至少一个编码数据的位置信息和/或数量，该至少一个编码数据均为重传数据，从而第二设备可以根据数据类型指示以及调度类型指示获取到重传数据。
再一种场景中，调度类型指示用于指示至少一个编码数据包含初传数据和重传数据，则该数据类型指示用于指示该至少一个编码数据的位置信息和/或数量，或者用于指示该至少一个编码数据中的重传数据的位置信息和/或数量，从而第二设备可以该数据类型指示以及调度类型指示获取到初传数据和重传数据。
方法二，调度类型指示用于指示至少一个编码数据仅包含初传数据，或不是仅包含初传数据。数据类型指示用于指示该至少一个编码数据中的部分或全部编码数据的位置信息(比如可以是编号、索引等)和/或数量。
需要说明的是，当该至少一个编码数据包含至少一个编码块，则调度类型指示用于指示至少一个编码块仅包含初传数据，或不是仅包含初传数据，数据类型指示用于指示至少一个编码块中的部分或全部编码块的位置信息和/或数量。当该至少一个编码数据包含至少一个编码块组，则调度类型指示用于指示至少一个编码块组仅包含初传数据，或不是仅包含初传数据，数据类型指示用于指示至少一个编码块组中的部分或全部编码块组的位置信息和/或数量。
调度类型指示用于指示至少一个编码数据仅包含初传数据，或不是仅包含初传数据，也可以理解为，调度类型指示用于指示初传、或用于指示不是初传，其中，不是初传指的是重传或混合重传(即发送的至少一个编码数据包含初传数据和重传数据)。作为示例，该调度类型指示可以用1比特组成的字段来指示，例如用“0”表示至少一个编码数据仅包含初传数据，“1”至少一个编码数据不是仅包含初传数据。作为另一示例，也可以用隐式的方式指示该至少一个编码数据的类型。可选的，通过MCS字段指示该至少一个编码数据的类型。例如，调制编码方式(Modulation and coding scheme，MCS)字段在正常情况下取值范围为0至12，可以根据其取值确定是哪种类型。比如取值在上述范围内，也即取值是0至12中的任一数值，则确定是仅包含初传数据，取值不在上述范围内，也即取值是0至12之外的任一数值，则是仅包含重传数据、或包含初传数据和重传数据。再例如，某个字段Modulation and coding scheme在正常情况下取值范围为0至12，可以将该取值范围划分为三个区间，每个区间分别对应一种编码数据传输方式(即仅包含初传数据、仅包含重传数据、包含初传数据和重传数据)，从而可以根据该字段的取值，确定编码数据的传输方式。
一种场景中，调度类型指示用于指示至少一个编码数据仅包含初传数据，则该数据类型指示用于指示该至少一个编码数据的位置信息和/或数量，该至少一个编码数据均为初传数据，从而第二设备可以根据数据类型指示以及调度类型指示获取到初传数据。
又一种场景中，调度类型指示用于指示至少一个编码数据不是仅包含初传数据，则该数据类型指示用于指示该至少一个编码数据的位置信息和/或数量，该至少一个编码数据要么全部是重传数据，要么包含初传数据和重传数据，第二设备可以根据数据类型指示确定此次传输是仅重传还是混合传输。例如，数据类型指示所指示的编码数据的数量小于或等于上次发生传输错误的编码数据的数量，则第二设备确定此次传输为仅重传。又如。数据类型指示所指示的编码数据的数量大于上次发生传输错误的编码数据的数量，则第二设备确定此次传输为混合传输。作为示例，仅包含重传数据可以是基于传输块的重传也可以是基于编码块或编码块组的重传。
基于上述方法一或方法二，可以实现指示调度类型以及指示发送的编码数据的位置信息和/数量。
作为一种实现方法，在上述方法一或方法二中，当调度类型指示用于指示至少一个编码数据仅包含初传数据，则可以通过预先定义的方式，初传一个传输块，此时第二设备可以获知发送的传输块所包含的编码块或编码块组的位置信息和/或数量，因此可以不需要上述数据类型指示，或者该情况下该数据类型指示用于其它用途。可以理解为，在上述步骤302中，第一设备向第二设备发送调度类型指示。相应的，第二设备接收所述调度类型指示。进一步可选的，所述第一设备可以发送所述数据类型指示，所述数据类型指示用于指示所述至少一个编码数据中的部分或全部编码数据的位置信息和/或数量，或者用于指示其他信息；或者，所述第一设备不发送数据类型指示。
作为一种实现方法，上述调度类型指示和数据类型指示可以携带于一个DCI或高层信令中进行调度。
步骤303，第一设备向第二设备发送至少一个编码数据。相应地，第二设备接收该至少一个编码数据。
需要说明的是，上述步骤302与步骤303之间没有严格执行顺序，可以是先执行步骤302，也可以是先执行步骤303，或者同时执行步骤302和303。
步骤304，第二设备根据调度类型指示和数据类型指示中的至少一个，获取至少一个编码数据。
具体的，第二设备根据调度类型指示确定该至少一个编码数据是仅包含初传数据，还是仅包含重传数据，或者是包含初传数据和重传数据，根据数据类型指示获取到初传数据，或者获取到重传数据，或者获取到初传数据和重传数据。
基于上述方案，第一设备在向第二设备发送编码数据时，可以根据当前可用的物理资源以及需要发送的编码数据，选择仅发送初传数据、或仅发送重传数据、或发送初传数据和重传数据，从而最大程度利用可用的物理资源，以实现提高物理资源利用率，减少资源的浪费。
以下，以上述步骤302中所描述的调度类型指示和数据类型指示对应的实现方法一为例进行说明。需要说明的是，针对上述步骤302中所描述的调度类型指示和数据类型指示的实现方法二的具体实现方法，可以参考该实现方法一的具体实现进行相应调整，不再赘述。
下面分三种不同情形上述实现方法一进行具体说明。
情形一，上述至少一个编码数据包含初传数据和重传数据。
该情形下，第一设备在一次资源调度中，可以向第二设备发送初传数据和重传数据，可以最大程度提高资源利用率。具体的，该至少一个编码数据包含至少一个传输块数据以及至少一个编码块数据，该至少一个传输块数据为初传数据，该至少一个编码块数据为重传数据，该至少一个编码块数据可以是至少一个编码块或至少一个编码块组。可以理解，所述至少一个传输块数据可以包含至少一个编码块或者至少一个编码块组，作为初传数据，所述至少一个传输块数据以传输块的方式传输。
该情形下，调度类型指示用于指示至少一个编码数据包含初传数据和重传数据。
示例性地，下面给出情形一中的数据类型指示的实现方法，包括但不限于以下方法一和方法二。
实现方法A，数据类型指示为比特位图(bitmap)，比特位图包含N个比特，N为预先配置(如网管配置)或者预先定义(如系统定义)的或者信令通知(如高层信令通知、或其它信令通知等)的，N的取值用于指示一传输块所包含的编码块或编码块组个数的最大值，N为大于1的整数，比特位图用于指示至少一个编码数据的位置信息和/或数量。
该比特位图指示了发送的编码数据中的初传数据(即至少一个传输块数据)和重传数据(即至少一个编码块数据)的位置信息和/或数量，但没有区分哪些是初传数据，哪些是重传数据。或者理解为，第二设备根据该比特位图，可以获知此次传输共发送了多少个编码数据以及这些编码数据的位置信息，但不能区分这些编码数据中哪些是初传数据，哪些是重传数据。第二设备需要根据其他信息从接收到的编码数据中区分出哪些是初传数据，哪些是重传数据。由于第二设备是编码数据的接收方，因此第二设备可以知道上次发生传输错误的编码数据并向第一设备发送了反馈信息，该反馈信息用于指示哪些编码数据发生传输错误，因此第二设备可以根据接收到的编码数据的位置信息确定哪些是重传数据，哪些是初传数据。即，可选的，该方法还包括步骤：第二设备向第一设备发送反馈信息，所述反馈信息用于指示至少一个编码数据的传输错误或者接收失败。进而，所述第一设备执行所述步骤301。
实现方法B，数据类型指示为比特位图，比特位图包含N个比特，N为预先配置(如网管配置)或者预先定义(如系统定义)的或者信令通知(如高层信令通知、或其它信令通知等)的，N的取值用于指示一传输块所包含的编码块或编码块组个数的最大值，N为大于1的整数，比特位图用于指示上述至少一个编码数据中的重传数据(即至少一个编码块数据)的位置信息和/或数量。进一步可选的，上述步骤302还包括，第一设备向第二设备发送指示信息，该指示信息用于指示上述至少一个编码数据中的初传数据(即至少一个传输块数据)的位置信息和/或数量。
第二设备根据该比特位图，可以获知此次传输中的重传数据的位置信息和/或数量，从而可以获取到重传数据。进一步可选的，还可以根据比特位图和指示信息确定初传数据的位置信息和/或数量，从而获取到初传数据。
在实际应用中，本次发送的至少一个编码数据与上次发送的编码数据之间的关系的实现方法，包括但限于：
实现方法1，本次发送的至少一个编码数据中的重传数据(即至少一个编码块数据) 包含的编码块组的数量、位置信息及大小，与该重传数据在初传时包含的编码块组的数量、位置信息及大小相同。进一步，该至少一个编码数据中的初传数据(即至少一个传输块数据)包含的编码数据的数量、位置信息及大小，与上一次传输的编码数据中传输成功的编码数据的数量、位置信息及大小相同或者对应相同。可以理解为该至少一个编码数据中的初传数据与上一次传输的编码数据中传输成功的编码数据在相同的位置上，对应的编码数据的数量和大小相同。
针对该至少一个编码数据中的重传数据，比如，发送的编码数据是编码块，则本次发送的至少一个编码块中的重传数据(即至少一个编码块)数量、位置信息及大小，与该重传数据在初传时包含的编码块的数量、位置信息及大小相同。再比如，发送的编码数据是编码块组，则本次发送的至少一个编码块组中的重传数据(即至少一个编码块组)包含的编码块组(称为第一编码块组)的数量、位置信息及大小，与该重传数据在初传时包含的编码块组(称为第二编码块组)的数量、位置信息及大小相同。其中，第一编码块组的大小与第二编码块组的大小相同，指的是第一编码块组包含的编码块的数量和大小与第二编码块组包含的编码块的数量和大小分别相同。
针对该至少一个编码数据中的初传数据，作为第一种实现方法，该至少一个编码数据中的初传数据(即至少一个传输块数据)的位置信息及大小与上次发送的编码数据中传输成功的编码数据的位置信息及大小对应相同。比如，发送的编码数据是编码块，则该至少一个编码块中的初传数据(即至少一个传输块数据)的数量、位置信息及大小，上一次传输的编码块中传输成功的编码块的数量、位置信息及大小相同。再比如，发送的编码数据是编码块组，则该至少一个编码数据中的初传数据(即至少一个传输块数据)包含的编码块组(称为第三编码块组)的数量、位置信息及大小，与上一次传输的编码块组中传输成功的编码块组(称为第四编码块组)的数量、位置信息及大小相同。其中，第三编码块组的大小与第四编码块组的大小相同，指的是第三编码块组包含的编码块的数量与大小与第四编码块组包含的编码块的数量和大小分别相同。
针对该至少一个编码数据中的初传数据，作为第二种实现方法，第一设备可以根据用于上述至少一个编码数据的物理资源以及调制编码方案(如调制与编码策略(Modulation and Coding Scheme，MCS))，确定该至少一个编码数据中的初传数据所包含的编码块或编码块组的大小和数量。比如，当编码数据是编码块时，第一设备可以先根据分配的物理资源及MCS确定能够发送的数据量，然后根据能够发送的数据量和上述至少一个编码数据中的重传数据对应的数据量确定上述至少一个编码数据中的初传数据对应的数据量，然后根据初传数据对应的数据量和该初传数据包含的编码块的数量，确定该初传数据所包含的编码块的大小。其中，确定的该至少一个编码数据中的初传数据所包含的编码块的数量、位置信息及大小，与上一次传输的编码数据中传输成功的编码数据所包含的编码块或编码块组的数量、位置信息及大小相同。再比如，当编码数据是编码块组时，第一设备可以先根据分配的物理资源及MCS确定能够发送的数据量，然后根据能够发送的数据量和上述至少一个编码数据中的重传数据对应的数据量确定上述至少一个编码数据中的初传数据对应的数据量，然后根据初传数据对应的数据量和该初传数据包含的编码块组的数量，确定该初传数据所包含的编码块组的大小，具体的，确定该初传数据所包含的编码块组中的编码块的数量和编码块的大小。需要说明的是，确定的该至少一个编码数据中的初传数据所包含的编码块组(称为第五编码块组)的数量、位置信息及大小，与上一次传输的编码 数据中传输成功的编码数据所包含的编码块组(称为第六编码块组)的数量、位置信息及大小相同，并且，第五编码块组包含的编码块的数量与大小与第六编码块组包含的编码块的数量和大小分别可能相同，也可能不相同。
实现方法2，本次发送的至少一个编码数据中的重传数据(即至少一个编码块数据)包含的编码块组的数量、位置信息及大小，与该重传数据在初传时包含的编码块组的数量、位置信息及大小相同。该至少一个编码数据中的初传数据(即至少一个传输块数据)的数量少于上一次传输的编码数据中传输成功的编码数据的数量。
针对该至少一个编码数据中的重传数据的实现方法，与上述实现方法1中的至少一个编码数据中的重传数据的实现方法相同，可参考前述描述，不再赘述。
针对该至少一个编码数据中的初传数据，作为第一种实现方法，该至少一个编码数据中的初传数据的位置信息及大小与上次发送的编码数据中传输成功的编码数据中的部分编码数据的位置信息及大小对应相同。比如，当编码数据是编码块时，该至少一个编码块中的初传编码块的位置信息及大小与上次发送的编码数据中传输成功的编码数据中的部分编码块的位置信息及大小对应相同，该至少一个编码块中的初传编码块的数量少于上次发送的编码数据中传输成功的编码块的数量。再比如，当编码数据是编码块组时，该至少一个编码块组中的初传数据包含的编码块组(称为第七编码块组)的位置信息及大小与上次发送的编码块组中传输成功的编码块组中的部分编码块组(称为第八编码块组)的位置信息及大小对应相同，该至少一个编码块组中的初传数据包含的编码块组的数量少于上次发送的编码块组中传输成功的编码块组的数量。其中，第七编码块组的大小与第八编码块组的大小相同，指的是第七编码块组包含的编码块的数量与大小与第八编码块组包含的编码块的数量和大小分别相同。
针对该至少一个编码数据中的初传数据，作为第二种实现方法，第一设备可以根据用于上述至少一个编码数据的物理资源以及调制编码方案(如MCS)，确定该至少一个编码数据中的初传数据所包含的编码块或编码块组的大小和数量。比如，当编码数据是编码块时，第一设备可以先根据分配的物理资源及MCS确定能够发送的数据量，然后根据能够发送的数据量和上述至少一个编码数据中的重传数据对应的数据量确定上述至少一个编码数据中的初传数据对应的数据量，然后根据初传数据对应的数据量和该初传数据包含的编码块的数量，确定该初传数据所包含的编码块的大小。再比如，当编码数据是编码块组时，第一设备可以先根据分配的物理资源及MCS确定能够发送的数据量，然后根据能够发送的数据量和上述至少一个编码数据中的重传数据对应的数据量确定上述至少一个编码数据中的初传数据对应的数据量，然后根据初传数据对应的数据量和该初传数据包含的编码块组的数量，确定该初传数据所包含的编码块组的大小，具体的，确定该初传数据所包含的编码块组中的编码块的数量和编码块的大小。需要说明的是，确定的该至少一个编码数据中的初传数据所包含的编码块组(称为第九编码块组)的数量、位置信息及大小，与上一次传输的编码数据中传输成功的编码数据中的部分编码数据所包含的编码块组(称为第十编码块组)的数量、位置信息及大小相同，并且，第九编码块组包含的编码块的数量与大小与第十编码块组包含的编码块的数量和大小分别可能相同，也可能不相同。
实现方法3，本次发送的至少一个编码数据中的重传数据(即至少一个编码块数据) 包含的编码块组的数量、位置信息及大小，与该重传数据在初传时包含的编码块组的数量、位置信息及大小相同。该至少一个编码数据中的初传数据(即至少一个传输块数据)的数量多于上一次传输的编码数据中传输成功的编码数据的数量。
针对该至少一个编码数据中的重传数据的实现方法，与上述实现方法1中的至少一个编码数据中的重传数据的实现方法相同，可参考前述描述，不再赘述。
针对该至少一个编码数据中的初传数据，作为一种实现方法，第一设备可以根据用于上述至少一个编码数据的物理资源以及调制编码方案(如MCS)，确定该至少一个编码数据中的初传数据所包含的编码块或编码块组的大小和数量。比如，当编码数据是编码块时，第一设备可以先根据分配的物理资源及MCS确定能够发送的数据量，然后根据能够发送的数据量和上述至少一个编码数据中的重传数据对应的数据量确定上述至少一个编码数据中的初传数据对应的数据量，然后根据初传数据对应的数据量和该初传数据包含的编码块的数量，确定该初传数据所包含的编码块的大小。再比如，当编码数据是编码块组时，第一设备可以先根据分配的物理资源及MCS确定能够发送的数据量，然后根据能够发送的数据量和上述至少一个编码数据中的重传数据对应的数据量确定上述至少一个编码数据中的初传数据对应的数据量，然后根据初传数据对应的数据量和该初传数据包含的编码块组的数量，确定该初传数据所包含的编码块组的大小，具体的，确定该初传数据所包含的编码块组中的编码块的数量和编码块的大小。
需要说明的是，以上实现方法1至实现方法3均可以与上述数据类型指示的实现方法A或实现方法B相结合进行实施。
结合上述实现方法1至实现方法3中的任一方法，在一种可能的实现方法中，该至少一个编码数据中各编码数据映射的第一物理资源是根据该至少一个编码数据构成的传输块对应的分配规则进行分配的。也即，第一设备将该至少一个编码数据等效为一个传输块，然后根据该传输块对应的分配规则，为该至少一个编码数据中的各编码数据中相应编码块或编码块组分配物理资源。其中，分配物理资源包含确定各个编码块或编码块组速率匹配后的比特长度以及速率匹配后的比特如何在物理资源上映射。或者理解为，上述步骤303中的第一设备向第二设备发送至少一个编码数据，具体包括：第一设备将至少一个编码数据映射到第一物理资源上发送至第二设备，至少一个编码数据包含的编码块或编码块组映射到第一物理资源的映射方式满足预先定义的传输块映射规则。
在本申请实施例中，在一种情形中，第一设备向第二设备发送的至少一个编码数据均为初传数据。在将编码数据划分为编码块的示例中，该至少一个编码数据所包含的编码块作为一个整体，称为一个传输块，也即初传时可以是以传输块为粒度进行传输，当然也可以是以编码块为进行传输。在将编码数据划分为编码块组的示例中，该至少一个编码数据所包含的编码块组作为一个整体，称为一个传输块，也即初传时可以是以传输块为粒度进行传输，当然也可以是以编码块组为进行传输。
在又一种情形中，第一设备向第二设备发送的至少一个编码数据均为重传数据。在将编码数据划分为编码块的示例中，该至少一个编码数据所包含的编码块作为一个整体，称为一个传输块，也即重传时可以是以传输块为粒度进行传输，当然也可以是以编码块为进行传输。在将编码数据划分为编码块组的示例中，该至少一个编码数据所包含的编码块组作为一个整体，称为一个传输块，也即重传时可以是以传输块为粒度进行传输，当然也可以是以编码块组为进行传输。
在又一种情形中，第一设备向第二设备发送的至少一个编码数据包含初传数据和重传数据。在将编码数据划分为编码块的示例中，该至少一个编码数据所包含的编码块作为一个整体，称为一个等效传输块或逻辑传输块，该逻辑传输块包含至少一个初传传输块和至少一个重传传输块，或者包含至少一个初传传输块和至少一个重传编码块。在将编码数据划分为编码块组的示例中，该至少一个编码数据所包含的编码块组作为一个整体，称为一个等效传输块或逻辑传输块，该逻辑传输块包含至少一个初传传输块和至少一个重传传输块，或者包含至少一个初传传输块和至少一个重传编码块组。
下面结合示例对上述各实现方法进行说明。并且以下示例中的调度类型指示和数据类型指示是以上述步骤302中所描述的调度类型指示和数据类型指示的实现方法一为例进行说明的。
需要说明的是，以下示例中，关于比特位图中的0和1的含义仅为示例，实际应用中也可以将以下部分或全部示例中的0和1所指示的含义进行互换，也即以下示例中由0指示的含义可以由1来指示，同时由1指示的含义可以由0来指示。
为便于说明，以下以上述编码数据为编码块组为例进行说明，也即第一设备将传输块划分为一个或多个编码块组进行发送。以下示例中，将每个传输块划分为最多8个编码块组(即以下示例中的N＝8)。该8个编码块组分别位置信息为：CBG0，CBG1，CBG2，CBG3，CBG4，CBG5，CBG6，CBG7。此时，比特位图包含8比特，每个比特对应一个编码块组，用于指示该编码块组是否有数据发送。例如，用“1”表示发送对应的编码块组，“0”表示不发送对应的编码数据块组。
假设第一设备在上次发送时，向第二设备发送了CBG0，CBG1，CBG2和CBG3，然后从第二设备接收到反馈信息，该反馈信息指示CBG1发生传输错误，因此下次传输时需要针对CBG1进行重传。
若采用上述实现方法1，则下次发送的编码数据也为CBG0，CBG1，CBG2和CBG3，其中CBG1是重传数据，CBG1包含的CB个数及每个CB的大小与上次发送的CBG1包含的CB个数及每个CB的大小分别相同。CBG0、CBG2和CBG3是初传数据，CBG0、CBG2和CBG3构成一个初传的传输块，CBG0包含的CB个数及每个CB的大小与上次发送的CBG0包含的CB个数及每个CB的大小分别相同，CBG2包含的CB个数及每个CB的大小与上次发送的CBG2包含的CB个数及每个CB的大小分别相同，CBG3包含的CB个数及每个CB的大小与上次发送的CBG3包含的CB个数及每个CB的大小分别相同。
基于该实现方法1，当数据类型指示采用上述实现方法A，则数据类型指示是一个比特位图，且该比特位图如图4(a)所示。其中，比特位图中对应CBG0，CBG1，CBG2和CBG3的比特位置均为1，用于表示发送的至少一个编码数据的位置信息分别为CBG0，CBG1，CBG2和CBG3，共发送了4个CBG，其中，初传数据(即CBG0，CBG2和CBG3)对应的比特信息和重传数据(即CBG1)对应的比特信息均为1，比特位图对应CBG4，CBG5，CBG6和CBG7的比特位置均为0，用于表示CBG4，CBG5，CBG6和CBG7没有发送编码数据。第二设备接收到该比特位图后，可以获知本次共发送了4个CBG，分别为CBG0，CBG1，CBG2和CBG3。然后第二设备可以根据上次向第一设备发送的反馈信息(用于指示CBG1发生传输错误)，确定接收到的CBG0，CBG2和CBG3是初传数据，接收到的 CBG1是重传数据。基于该实现方法1，当数据类型指示采用上述实现方法A，则数据类型指示是一个比特位图，且该比特位图还可以如图4(b)所示。其中，比特位图中对应CBG1的比特位置为1，用于表示CBG1是重传数据，比特位图中对应CBG0、CBG2和CBG3的比特位置为0，用于表示CBG0、CBG2和CBG3是初传数据，比特位图中对应CBG4、CBG5、CBG6和CBG7的比特位置为0，用于表示CBG4、CBG5、CBG6和CBG7没有发送编码数据。第二设备接收到该比特位图后，可以根据上次传输的CBG为CBG0至CBG4，获知本次传输的也是CBG0至CBG4，并且根据比特位图，由于CBG1对应的比特位为1，则获知CBG1是重传数据，由于CBG0、CBG2和CBG3对应的比特位为0，则获知CBG0、CBG2和CBG3是初传数据。基于该实现方法1，当数据类型指示采用上述实现方法B，则数据类型指示是一个比特位图，且该比特位图如图7所示。其中，比特位图中对应CBG1的比特位置为1，用于表示发送的至少一个重传数据的位置信息为CBG1，指示信息用于指示发送的至少一个编码数据中的初传数据的数量为3，也即共发送了4个CBG。比特位图对应CBG0，CBG2，CBG3，CBG4，CBG5，CBG6和CBG7的比特位置均为0，用于表示CBG0，CBG2，CBG3，CBG4，CBG5，CBG6和CBG7没有发送重传数据。第二设备接收到该比特位图后，可以获知本次发送的重传数据为CBG1，以及根据比特位图和指示信息确定初传数据为CBG0，CBG2和CBG3。
并且，假如此次物理资源配置及MCS等与上次传输配置相同的话，则CBG0映射的物理资源与上次发送的CBG0映射的物理资源相同，CBG1映射的物理资源与上次发送的CBG1映射的物理资源相同，CBG2映射的物理资源与上次发送的CBG2映射的物理资源相同，CBG3映射的物理资源与上次发送的CBG3映射的物理资源相同，否则物理层资源在CBG0，CBG1，CBG2和CBG3之间的分配原则可以按照这些CBG属于同一个传输块来确定。
并且，物理层资源在CBG0，CBG1，CBG2和CBG3之间的分配原则可以按照这些CBG属于同一个传输块来确定。比如，先将预设数量的比特，按照尽量等分原则，分别分配给CBG0，CBG1，CBG2和CBG3构成的等效传输块所包含的各个CB，例如，CBG0，CBG1，CBG2和CBG3构成的等效传输块共包含10个CB，预设数量的比特为1000比特，则每个CB分配100比特，其中，CB到比特的匹配过程也称为速率匹配。然后，将这预设数量的比特映射至物理资源上进行发送。需要说明的是，在具体实施时，可以按照CBG0，CBG1，CBG2和CBG3构成的等效传输块所包含的CB的排序顺序，依次将这些CB匹配至预设数量的比特。
具体的，物理层能够传输的比特数为G(即传输块可以利用的编码后比特数)，N L表示传输块映射的层数，Q m表示调制阶数，E r表示每个编码块速率匹配后的长度，r表示编码块的序号,其值为0到C’-1，C’表示编码块的总数，当r小于或等于C’-mod(G/(N L*Q m)，C’)-1,则
Figure PCTCN2020106669-appb-000004
否则
Figure PCTCN2020106669-appb-000005
其中mod表示取模运算，
Figure PCTCN2020106669-appb-000006
表示向上取整，
Figure PCTCN2020106669-appb-000007
表示向下取整。例如，CBG0，CBG1，CBG2和CBG3构成的等效传输块共包含10个CB，则C’＝10。调制方式为正交相移键控(Quadrature Phase Shift Keying，QPSK)，则Q m＝2。N L＝1，G＝1000。然后可以计算各个编码块速率匹配后的长度。
若采用上述实现方法2，则下次发送的编码数据至少包含CBG1，以及包含CBG0，CBG2或CBG3中的一个或两个。以下以发送的编码数据包含CBG0，CBG1和CBG2为例进行说明。其中CBG1是重传数据，CBG1包含的CB个数及每个CB的大小与上次发送的CBG1包含的CB个数及每个CB的大小分别相同。CBG0和CBG2是初传数据，CBG0和CBG2构成一个初传的传输块。并且，若采用实现方法2中描述的第一种实现方法，则CBG0包含的CB个数及每个CB的大小与上次发送的CBG0包含的CB个数及每个CB的大小分别相同，CBG2包含的CB个数及每个CB的大小与上次发送的CBG2包含的CB个数及每个CB的大小分别相同。若采用实现方法2中描述的第二种实现方法，则CBG0包含的CB个数及每个CB的大小与上次发送的CBG0包含的CB个数及每个CB的大小可能分别相同或不同，CBG2包含的CB个数及每个CB的大小与上次发送的CBG2包含的CB个数及每个CB的大小可能分别相同或不同。
基于该实现方法2，当数据类型指示采用上述实现方法A，则数据类型指示是一个比特位图，且该比特位图如图5所示。其中，比特位图中对应CBG0，CBG1和CBG2的比特位置均为1，用于表示发送的至少一个编码数据的位置信息分别为CBG0，CBG1和CBG2，共发送了3个CBG，其中，初传数据(即CBG0和CBG2)对应的比特信息和重传数据(即CBG1)对应的比特信息均为1，比特位图对应CBG2，CBG4，CBG5，CBG6和CBG7的比特位置均为0，用于表示CBG2，CBG4，CBG5，CBG6和CBG7没有发送编码数据。第二设备接收到该比特位图后，可以获知本次共发送了3个CBG，分别为CBG0，CBG1和CBG2。然后第二设备可以根据上次发送的反馈信息(用于指示CBG1发生传输错误)，确定接收到的CBG0和CBG2是初传数据，接收到的CBG1是重传数据。基于该实现方法2，当数据类型指示采用上述实现方法B，则数据类型指示是一个比特位图，且该比特位图如图7所示。其中，比特位图中对应CBG1的比特位置为1，用于表示发送的至少一个重传数据的位置信息为CBG1，指示信息用于指示发送的至少一个编码数据中的初传数据的数量为2，也即共发送了3个CBG。比特位图对应CBG0，CBG2，CBG3，CBG4，CBG5，CBG6和CBG7的比特位置均为0，用于表示CBG0，CBG2，CBG3，CBG4，CBG5，CBG6和CBG7没有发送重传数据。第二设备接收到该比特位图后，可以获知本次发送的重传数据为CBG1，以及根据比特位图和指示信息确定初传数据为CBG0和CBG2。
并且，物理层资源在CBG0，CBG1和CBG2之间的分配原则可以按照这些CBG属于同一个传输块来确定。比如，先将预设数量的比特，按照尽量等分原则，分别分配给CBG0，CBG1和CBG2构成的等效传输块所包含的各个CB，例如，CBG0，CBG1和CBG2构成的等效传输块共包含10个CB，预设数量的比特为1000比特，则每个CB分配100比特，其中，CB到比特的匹配过程也称为速率匹配。然后，将这预设数量的比特映射至物理资源上进行发送。需要说明的是，在具体实施时，可以按照CBG0，CBG1和CBG2构成的等效传输块所包含的CB的排序顺序，依次将这些CB匹配至预设数量的比特。具体示例可以参见上述实现方式1的阐述。
若采用上述实现方法3，则下次发送的编码数据至少包含CBG1，以及包含CBG0，CBG2，CBG3，CBG4，CBG5，CBG6或CBG7中的至少四个CBG。以下以发送的编码数据包含CBG0，CBG1，CBG2，CBG3和CBG4为例进行说明。其中CBG1是重传数据，CBG1包含的CB个数及每个CB的大小与上次发送的CBG1包含的CB个数及每个CB的 大小分别相同。CBG0，CBG2，CBG3和CBG4是初传数据，CBG0，CBG2，CBG3和CBG4构成一个初传的传输块。CBG0包含的CB个数及每个CB的大小与上次发送的CBG0包含的CB个数及每个CB的大小分别可能相同或不同，CBG2包含的CB个数及每个CB的大小与上次发送的CBG2包含的CB个数及每个CB的大小分别可能相同或不同，CBG3包含的CB个数及每个CB的大小与上次发送的CBG3包含的CB个数及每个CB的大小分别可能相同或不同，CBG4包含的CB个数及每个CB的大小与上次发送的CBG4包含的CB个数及每个CB的大小分别可能相同或不同。
基于该实现方法3，当数据类型指示采用上述实现方法A，则数据类型指示是一个比特位图，且该比特位图如图6所示。其中，比特位图中对应CBG0，CBG1，CBG2，CBG3和CBG4的比特位置均为1，用于表示发送的至少一个编码数据的位置信息分别为CBG0，CBG1，CBG2，CBG3和CBG4，共发送了5个CBG，其中，初传数据(即CBG0，CBG2，CBG3和CBG4)对应的比特信息和重传数据(即CBG1)对应的比特信息均为1，比特位图对应CBG4，CBG6和CBG7的比特位置均为0，用于表示CBG4，CBG6和CBG7没有发送编码数据。第二设备接收到该比特位图后，可以获知本次共发送了5个CBG，分别为CBG0，CBG1，CBG2，CBG3和CBG4。然后第二设备可以根据上次发送的反馈信息(用于指示CBG1发生传输错误)，确定接收到的CBG0，CBG2，CBG3和CBG4是初传数据，接收到的CBG1是重传数据。基于该实现方法3，当数据类型指示采用上述实现方法B，则数据类型指示是一个比特位图，且该比特位图如图7所示。其中，比特位图中对应CBG1的比特位置为1，用于表示发送的至少一个重传数据的位置信息为CBG1，指示信息用于指示发送的至少一个编码数据中的初传数据的数量为4，也即共发送了5个CBG。比特位图对应CBG0，CBG2，CBG3，CBG4，CBG4，CBG6和CBG7的比特位置均为0，用于表示CBG0，CBG2，CBG3，CBG4，CBG4，CBG6和CBG7没有发送重传数据。第二设备接收到该比特位图后，可以获知本次发送的重传数据为CBG1，以及根据比特位图和指示信息确定初传数据为CBG0，CBG2、CBG3和CBG4。
并且，物理层资源在CBG0，CBG1，CBG2，CBG3和CBG4之间的分配原则可以按照这些CBG属于同一个传输块来确定。比如，先将预设数量的比特，按照尽量等分原则，分别分配给CBG0，CBG1，CBG2，CBG3和CBG4构成的等效传输块所包含的各个CB，例如，CBG0，CBG1，CBG2，CBG3和CBG4构成的等效传输块共包含10个CB，预设数量的比特为1000比特，则每个CB分配100比特，其中，CB到比特的匹配过程也称为速率匹配。然后，将这预设数量的比特映射至物理资源上进行发送。需要说明的是，在具体实施时，可以按照CBG0，CBG1，CBG2，CBG3和CBG4构成的等效传输块所包含的CB的排序顺序，依次将这些CB匹配至预设数量的比特。具体示例可以参见上述实现方式1的阐述。
情形二，上述至少一个编码数据仅包含初传数据。
该情形下，第一设备在一次资源调度中，可以向第二设备仅发送初传数据。比如，在第一次传输编码数据(即初传)时，第一设备获取的至少一个编码数据均为初传数据。再比如，当上次传输的编码数据均传输正确，则下次传输中不包含重传数据，因此第一设备获取的将要传输至第二设备的至少一个编码数据也均为初传数据。
该情形下，调度类型指示用于指示至少一个编码数据仅包含初传数据。
该情形下，作为一种实现方法，数据类型指示为比特位图，比特位图包含N个比特，N为预先配置或者预先定义的或者信令通知的，N的取值用于指示一传输块所包含的编码块或编码块组个数的最大值，N为大于1的整数，比特位图用于指示至少一个编码数据的位置信息和/或数量。
该比特位图指示了发送的编码数据中的至少一个编码数据(也即初传数据)的位置信息和/或数量。第二设备根据调度类型指示确定此次接收的全是初传数据，然后根据比特位图，确定接收的初传数据的位置信息和/或数量，从而第二设备可以获取到这些初传数据。
情形三，上述至少一个编码数据仅包含重传数据。
该情形下，第一设备在一次资源调度中，可以向第二设备仅发送重传数据。比如，当上次传输的编码数据中的部分或全部编码数据发生传输错误，则第一设备可以收到反馈信息，指示哪些编码数据发生传输错误，在下次传输中可以重传那些发生传输错误的编码数据，同时又没有新的传输块需要发送或者没有剩余的物理资源用于发送新的传输块，此时在下次传输中仅发送重传数据，也即仅发送上次发生传输错误的编码数据。
该情形下，调度类型指示用于指示至少一个编码数据仅包含重传数据。
该情形下，作为一种实现方法，数据类型指示为比特位图，比特位图包含N个比特，N为预先配置或者预先定义的或者信令通知的，N的取值用于指示一传输块所包含的编码块或编码块组个数的最大值，N为大于1的整数，比特位图用于指示至少一个编码数据的位置信息和/或数量。
该比特位图指示了发送的编码数据中的至少一个编码数据(也即重传数据)的位置信息和/或数量。第二设备根据调度类型指示确定此次接收的全是重传数据，然后根据比特位图，确定接收的重传数据的位置信息和/或数量，从而第二设备可以获取到这些重传数据。
作为一种实现方法，当第一设备向第二设备发送至少一个编码数据之后，第二设备可以向第一设备发送反馈信息，用于指示所述至少一个编码数据的传输情况，所述传输情况为传输成功或发生传输错误。可选地，当数据类型指示为比特位图时，该反馈信息也可以是同样大小的比特位图。以图4(a)所示的示例为例，第一设备向第二设备发送了CBG0至CBG3，则第二设备可以通过比特位图告知第一设备：CBG0至CBG3中的哪些CBG传输成功，哪些发生传输错误。如图8所示，为反馈信息的一个示例图。该图8所示的示例中，CBG1、CBG2和CBG3对应的比特均为1，表示CBG1、CBG2和CBG3传输成功，CBG0对应的比特为0，表示CBG0发生传输错误。由于第一设备没有传输CBG4至CBG7，因此比特位图中对应CBG4至CBG7的比特可以设置为1，或者设置为0，或者不设置。图8示例性的，将比特位图中对应CBG4至CBG7的比特均设置为1。
参考图9，为本申请实施例提供的一种通信装置示意图。该通信装置900用于实现上述各实施例中对应第一设备或第二设备的各个步骤，如图9所示，该通信装置900包括收发单元910和处理单元920。
在第一个实施例中，该通信装置900用于实现上述各实施例中对应第一设备的各个步骤：
处理单元920，用于获取至少一个编码数据。收发单元910，用于向第二设备发送调 度类型指示和数据类型指示，所述调度类型指示用于指示所述至少一个编码数据包含初传数据、包含重传数据、或者包含初传数据和重传数据，所述数据类型指示用于指示所述至少一个编码数据中的部分或全部编码数据的位置信息和/或数量；以及向所述第二设备发送所述至少一个编码数据。
在一种可能的实现方法中，所述至少一个编码数据包含至少一个编码块组，所述数据类型指示用于指示所述至少一个编码块组中的部分或全部编码块组的位置信息和/或数量。
在一种可能的实现方法中，所述至少一个编码数据包含至少一个传输块数据以及至少一个编码块数据，所述至少一个传输块数据为初传数据，所述至少一个编码块数据为重传数据，所述调度类型指示用于指示所述至少一个编码数据包含初传数据和重传数据。
在一种可能的实现方法中，所述数据类型指示为比特位图，所述比特位图包含N个比特，所述N为预先配置或者预先定义的或者信令通知的，所述N的取值用于指示一传输块所包含的编码块组个数的最大值，N为大于1的整数，所述比特位图用于指示所述至少一个编码数据的位置信息和/或数量。
在一种可能的实现方法中，所述数据类型指示为比特位图，所述比特位图包含N个比特，所述N为预先配置或者预先定义的或者信令通知的，所述N的取值用于指示一传输块所包含的编码块组个数的最大值，N为大于1的整数，所述比特位图用于指示所述至少一个编码块数据的位置信息和/或数量；收发单元910，还用于向所述第二设备发送指示信息，所述指示信息用于指示所述至少一个传输块数据的位置信息和/或数量，所述至少一个传输块数据的数量为所述至少一个传输块数据中的编码块组的个数。
在一种可能的实现方法中，所述至少一个编码块数据包含的编码块组的数量、位置信息及大小，与所述至少一个编码块数据在初传时包含的编码块组的数量、位置信息及大小对应相同。
在一种可能的实现方法中，所述至少一个传输块数据包含的编码块组的位置信息以及大小，与上一次传输的编码数据中传输成功的编码数据包含的编码块组的位置信息及大小相同；或者，所述至少一个传输块数据包含的编码块组的位置信息以及大小，与上一次传输成功的编码数据中的部分编码数据所包含的编码块组的位置信息及大小相同。
在一种可能的实现方法中，处理单元920，还用于根据用于所述至少一个编码数据的物理资源以及调制编码方案，确定所述至少一个传输块数据包含的编码块组的大小和数量。
在一种可能的实现方法中，所述至少一个编码数据包含至少一个传输块数据，所述至少一个传输块数据为初传数据，所述调度类型指示用于指示所述至少一个编码数据包含初传数据；或者
所述至少一个编码数据包含至少一个编码块数据，所述至少一个编码块数据为重传数据，所述调度类型指示用于指示所述至少一个编码数据包含重传数据。
在一种可能的实现方法中，收发单元910，用于向所述第二设备发送所述至少一个编码数据，具体包括：用于将所述至少一个编码数据映射到第一物理资源上发送至所述第二设备，所述至少一个编码数据包含的编码块或编码块组映射到所述第一物理资源的映射方式满足预先定义的传输块映射规则。
在第二个实施例中，该通信装置900用于实现上述各实施例中对应第二设备的各个步骤：
收发单元910，用于接收来自第一设备的至少一个编码数据；以及接收来自第一设备的调度类型指示和数据类型指示，所述调度类型指示用于指示所述至少一个编码数据包含初传数据、包含重传数据、或者包含初传数据和重传数据，所述数据类型指示用于指示所述至少一个编码数据中的部分或全部编码数据的位置信息和/或数量。处理单元920，用于根据所述调度类型指示和所述数据类型指示，获取所述至少一个编码数据。
在一种可能的实现方法中，所述至少一个编码数据包含至少一个编码块组，所述数据类型指示用于指示所述至少一个编码块组中的部分或全部编码块组的位置信息和/或数量。
在一种可能的实现方法中，所述至少一个编码数据包含至少一个传输块数据以及至少一个编码块数据，所述至少一个传输块数据为初传数据，所述至少一个编码块数据为重传数据，所述调度类型指示用于指示所述至少一个编码数据包含初传数据和重传数据；处理单元920，用于根据所述调度类型指示和所述数据类型指示，获取所述至少一个编码数据，具体包括：用于根据所述调度类型指示和所述数据类型指示，分别获取所述至少一个传输块数据和至少一个编码块数据。
在一种可能的实现方法中，所述数据类型指示为比特位图，所述比特位图包含N个比特，所述N为预先配置或者预先定义的或者信令通知的，所述N的取值用于指示一传输块所包含的编码块组个数的最大值，N为大于1的整数，所述比特位图用于指示所述至少一个编码数据的位置信息和/或数量。
在一种可能的实现方法中，所述数据类型指示为比特位图，所述比特位图包含N个比特，所述N为预先配置或者预先定义的或者信令通知的，所述N的取值用于指示一传输块所包含的编码块组个数的最大值，N为大于1的整数，所述比特位图用于指示所述至少一个编码块数据的位置信息和/或数量；收发单元910，还用于接收来自所述第一设备的指示信息，所述指示信息用于指示所述至少一个传输块数据的位置信息和/或数量，所述至少一个传输块数据的数量为所述至少一个传输块数据中的编码块组的个数。处理单元920，用于根据所述调度类型指示和所述数据类型指示，分别获取所述至少一个传输块数据和至少一个编码块数据，具体包括：用于根据所述调度类型指示、所述数据类型指示和所述指示信息，分别获取所述至少一个传输块数据和至少一个编码块数据。
在一种可能的实现方法中，所述至少一个编码块数据包含的编码块组的数量、位置信息及大小，与所述至少一个编码块数据在初传时包含的编码块组的数量、位置信息及大小对应相同。
在一种可能的实现方法中，所述至少一个传输块数据包含的编码块组的位置信息以及大小，与上一次传输的编码数据中传输成功的编码数据包含的编码块组的位置信息及大小相同；或者，所述至少一个传输块数据包含的编码块组的位置信息以及大小，与上一次传输成功的编码数据中的部分编码数据所包含的编码块组的位置信息及大小相同。
在一种可能的实现方法中，处理单元920，还用于根据用于所述至少一个编码数据的物理资源以及调制编码方案，确定所述至少一个传输块数据包含的编码块组的大小和数量。
在一种可能的实现方法中，所述至少一个编码数据包含至少一个传输块数据，所述至少一个传输块数据为初传数据，所述调度类型指示用于指示所述至少一个编码数据包含初传数据；或者所述至少一个编码数据包含至少一个编码块数据，所述至少一个编码块数据为重传数据，所述调度类型指示用于指示所述至少一个编码数据包含重传数据。
在一种可能的实现方法中，收发单元910，用于接收来自第一设备的至少一个编码数 据，具体包括：用于接收来自所述第一设备的映射到第一物理资源上的所述至少一个编码数据，所述至少一个编码数据包含的编码块或编码块组映射到所述第一物理资源的映射方式满足预先定义的传输块映射规则。
可选地，上述通信装置还可以包括存储单元，该存储单元用于存储数据或者指令(也可以称为代码或者程序)，上述各个单元可以和存储单元交互或者耦合，以实现对应的方法或者功能。例如，处理单元920可以读取存储单元中的数据或者指令，使得通信装置实现上述实施例中的方法。
应理解以上通信装置中单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且通信装置中的单元可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分单元以软件通过处理元件调用的形式实现，部分单元以硬件的形式实现。例如，各个单元可以为单独设立的处理元件，也可以集成在通信装置的某一个芯片中实现，此外，也可以以程序的形式存储于存储器中，由通信装置的某一个处理元件调用并执行该单元的功能。此外这些单元全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件又可以成为处理器，可以是一种具有信号的处理能力的集成电路。在实现过程中，上述方法的各步骤或以上各个单元可以通过处理器元件中的硬件的集成逻辑电路实现或者以软件通过处理元件调用的形式实现。
在一个例子中，以上任一通信装置中的单元可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(application specific integrated circuit，ASIC)，或，一个或多个微处理器(digital singnal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)，或这些集成电路形式中至少两种的组合。再如，当通信装置中的单元可以通过处理元件调度程序的形式实现时，该处理元件可以是通用处理器，例如中央处理器(central processing unit，CPU)或其它可以调用程序的处理器。再如，这些单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
参考图10，为本申请实施例提供的一种通信装置示意图，用于实现以上实施例中第一设备或第二设备的操作。如图10所示，该通信装置包括：至少一个处理器1010和接口1030，可选地，该通信装置还包括存储器1020。接口1030用于实现与其他设备进行通信。可选的，该通信装置可以为第一设备或者第二设备内的芯片系统或者集成电路。
以上实施例中第一设备或第二设备执行的方法可以通过处理器1010调用存储器(可以是第一设备或第二设备中的存储器1020，也可以是外部存储器)中存储的程序来实现。即，第一设备或第二设备可以包括处理器1010，该处理器1010通过调用存储器中的程序，以执行以上方法实施例中第一设备或第二设备执行的方法。这里的处理器可以是一种具有信号的处理能力的集成电路，例如CPU。第一设备或第二设备可以通过配置成实施以上方法的一个或多个集成电路来实现。例如：一个或多个ASIC，或，一个或多个微处理器DSP，或，一个或者多个FPGA等，或这些集成电路形式中至少两种的组合。或者，可以结合以上实现方式。
具体的，图9中的收发单元910和处理单元920的功能/实现过程可以通过图10所示的通信装置1000中的处理器1010调用存储器1020中存储的计算机可执行指令来实现。或者，图9中的处理单元920的功能/实现过程可以通过图10所示的通信装置1000中的处 理器1010调用存储器1020中存储的计算机执行指令来实现，图9中的收发单元910的功能/实现过程可以通过图10中所示的通信装置1000中的接口1030来实现，示例性的，收发单元910的功能/实现过程可以通过处理器调用存储器中的程序指令以驱动接口1030来实现。
本申请实施例还提供一种终端，该终端可以为运输工具或者智能设备，该运输工具或者智能设备包含上述第一设备、第二设备或通信装置1000中的至少一个。例如，该终端可以为智能家居设备、智能穿戴设备、无人机、无人运输车、汽车或者机器人等。
本申请实施例还提供一种通信系统，该通信系统包含上述任意实施例中的第一设备和上述任意实施例中的第二设备。
本申请实施例还提供一种芯片，包括至少一个处理器和接口。该接口用于为至少一个处理器提供程序指令或者数据。该至少一个处理器用于执行程序指令，以实现上述任意实施例中的方法。
图11为本申请实施例提供的一种芯片的结构示意图。芯片1100包括一个或多个处理器1101以及接口电路1102。可选的，所述芯片1100还可以包含总线1103。其中：
处理器1101可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器1101中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1101可以是通用处理器、数字通信器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
接口电路1102可以用于数据、指令或者信息的发送或者接收，处理器1101可以利用接口电路1102接收的数据、指令或者其它信息，进行加工，可以将加工完成信息通过接口电路1102发送出去。
可选的，芯片还包括存储器，存储器可以包括只读存储器和随机存取存储器，并向处理器提供操作指令和数据。存储器的一部分还可以包括非易失性随机存取存储器(NVRAM)。
可选的，存储器存储了可执行软件模块或者数据结构，处理器可以通过调用存储器存储的操作指令(该操作指令可存储在操作系统中)，执行相应的操作。
可选的，芯片可以使用在本申请实施例涉及的通信装置(包括主节点和从节点)中。可选的，接口电路1102可用于输出处理器1101的执行结果。关于本申请的一个或多个实施例提供的短距离通信方法可参考前述各个实施例，这里不再赘述。
需要说明的，处理器1101、接口电路1102各自对应的功能既可以通过硬件设计实现，也可以通过软件设计来实现，还可以通过软硬件结合的方式来实现，这里不作限制。
本领域普通技术人员可以理解：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。“和/或”，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。字符“/”一般表示前后关联对象是一种“或”的关系。“至少一个”是指一个或者多个。至少两个是指两个或者多个。“至少一个”、“任 意一个”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个、种)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。“多个”是指两个或两个以上，其它量词与之类似。
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，而不应对本发明实施例的实施过程构成任何限定。
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，全部或部分地产生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存储介质中，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(DSL))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括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，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
本申请实施例中所描述的各种说明性的逻辑单元和电路可以通过通用处理器，数字信号处理器，专用集成电路(ASIC)，现场可编程门阵列(FPGA)或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
本申请实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的软件单元、或者这两者的结合。软件单元可以存储于随机存取存储器(Random Access Memory，RAM)、闪存、只读存储器(Read-Only Memory，ROM)、EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介中。示例性地，存储媒介可以与处理器连接，以使得处理器可以从存储媒介中读取信息，并可以向存储媒介存写信息。可选地，存储媒介还可以集成到处理器中。处理器和存储媒介可以设置于ASIC中。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
在一个或多个示例性的设计中，本申请所描述的上述功能可以在硬件、软件、固件或这三者的任意组合来实现。如果在软件中实现，这些功能可以存储与电脑可读的媒介上， 或以一个或多个指令或代码形式传输于电脑可读的媒介上。电脑可读媒介包括电脑存储媒介和便于使得让电脑程序从一个地方转移到其它地方的通信媒介。存储媒介可以是任何通用或特殊电脑可以接入访问的可用媒体。例如，这样的电脑可读媒体可以包括但不限于RAM、ROM、EEPROM、CD-ROM或其它光盘存储、磁盘存储或其它磁性存储装置，或其它任何可以用于承载或存储以指令或数据结构和其它可被通用或特殊电脑、或通用或特殊处理器读取形式的程序代码的媒介。此外，任何连接都可以被适当地定义为电脑可读媒介，例如，如果软件是从一个网站站点、服务器或其它远程资源通过一个同轴电缆、光纤电脑、双绞线、数字用户线(DSL)或以例如红外、无线和微波等无线方式传输的也被包含在所定义的电脑可读媒介中。所述的碟片(disk)和磁盘(disc)包括压缩磁盘、镭射盘、光盘、数字通用光盘(英文：Digital Versatile Disc，简称：DVD)、软盘和蓝光光盘，磁盘通常以磁性复制数据，而碟片通常以激光进行光学复制数据。上述的组合也可以包含在电脑可读媒介中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请的具体实施方式而已，并不用于限定本申请的保护范围，凡在本申请的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请的保护范围之内。本申请说明书的上述描述可以使得本领域技术任何可以利用或实现本申请的内容，任何基于所公开内容的修改都应该被认为是本领域显而易见的，本申请所描述的基本原则可以应用到其它变形中而不偏离本申请的发明本质和范围。因此，本申请所公开的内容不仅仅局限于所描述的实施例和设计，还可以扩展到与本申请原则和所公开的新特征一致的最大范围。
尽管结合具体特征及其实施例对本申请进行了描述，显而易见的，在不脱离本申请的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明，且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包括这些改动和变型在内。

Claims (30)

  1. 一种短距离通信方法，其特征在于，包括：
    获取至少一个编码数据；
    向第二设备发送调度类型指示和数据类型指示，所述调度类型指示用于指示所述至少一个编码数据包含初传数据、包含重传数据、或者包含初传数据和重传数据，所述数据类型指示用于指示所述至少一个编码数据中的部分或全部编码数据的位置信息和/或数量；以及
    向所述第二设备发送所述至少一个编码数据。
  2. 如权利要求1所述的方法，其特征在于，
    所述至少一个编码数据包含至少一个编码块组，所述数据类型指示用于指示所述至少一个编码块组中的部分或全部编码块组的位置信息和/或数量。
  3. 如权利要求1或2所述的方法，其特征在于，
    所述至少一个编码数据包含至少一个传输块数据以及至少一个编码块数据，所述至少一个传输块数据为初传数据，所述至少一个编码块数据为重传数据，所述调度类型指示用于指示所述至少一个编码数据包含初传数据和重传数据。
  4. 如权利要求1-3任一所述的方法，其特征在于，
    所述数据类型指示为比特位图，所述比特位图包含N个比特，所述N为预先配置或者预先定义的或者信令通知的，所述N的取值用于指示一传输块所包含的编码块组个数的最大值，N为大于1的整数，所述比特位图用于指示所述至少一个编码数据的位置信息和/或数量。
  5. 如权利要求1-3任一所述的方法，其特征在于，
    所述数据类型指示为比特位图，所述比特位图包含N个比特，所述N为预先配置或者预先定义的或者信令通知的，所述N的取值用于指示一传输块所包含的编码块组个数的最大值，N为大于1的整数，所述比特位图用于指示所述至少一个编码块数据的位置信息和/或数量。
  6. 如权利要求5所述的方法，其特征在于，所述方法还包括：
    向所述第二设备发送指示信息，所述指示信息用于指示所述至少一个传输块数据的位置信息和/或数量，所述至少一个传输块数据的数量为所述至少一个传输块数据中的编码块组的个数。
  7. 如权利要求3-6任一项所述的方法，其特征在于，
    所述至少一个编码块数据包含的编码块组的数量、位置信息及大小，与所述至少一个编码块数据在初传时包含的编码块组的数量、位置信息及大小对应相同。
  8. 如权利要求7所述的方法，其特征在于，所述至少一个传输块数据包含的编码块组的位置信息以及大小，与上一次传输的编码数据中传输成功的编码数据包含的编码块组的位置信息及大小相同；或者
    所述至少一个传输块数据包含的编码块组的位置信息以及大小，与上一次传输成功的编码数据中的部分编码数据所包含的编码块组的位置信息及大小相同。
  9. 如权利要求3-8任一项所述的方法，其特征在于，还包括：
    根据用于所述至少一个编码数据的物理资源以及调制编码方案，确定所述至少一个传 输块数据包含的编码块组的大小和数量。
  10. 如权利要求1或2所述的方法，其特征在于，
    所述至少一个编码数据包含至少一个传输块数据，所述至少一个传输块数据为初传数据，所述调度类型指示用于指示所述至少一个编码数据包含初传数据；或者
    所述至少一个编码数据包含至少一个编码块数据，所述至少一个编码块数据为重传数据，所述调度类型指示用于指示所述至少一个编码数据包含重传数据。
  11. 如权利要求1-10任一所述的方法，其特征在于，所述向所述第二设备发送所述至少一个编码数据，包括：
    将所述至少一个编码数据映射到第一物理资源上发送至所述第二设备，所述至少一个编码数据包含的编码块或编码块组映射到所述第一物理资源的映射方式满足预先定义的传输块映射规则。
  12. 一种短距离通信方法，其特征在于，包括：
    接收来自第一设备的至少一个编码数据；以及
    接收来自第一设备的调度类型指示和数据类型指示，所述调度类型指示用于指示所述至少一个编码数据包含初传数据、包含重传数据、或者包含初传数据和重传数据，所述数据类型指示用于指示所述至少一个编码数据中的部分或全部编码数据的位置信息和/或数量；
    根据所述调度类型指示和所述数据类型指示，获取所述至少一个编码数据。
  13. 如权利要求12所述的方法，其特征在于，
    所述至少一个编码数据包含至少一个编码块组，所述数据类型指示用于指示所述至少一个编码块组中的部分或全部编码块组的位置信息和/或数量。
  14. 如权利要求12或13所述的方法，其特征在于，
    所述至少一个编码数据包含至少一个传输块数据以及至少一个编码块数据，所述至少一个传输块数据为初传数据，所述至少一个编码块数据为重传数据，所述调度类型指示用于指示所述至少一个编码数据包含初传数据和重传数据。
  15. 如权利要求12-14任一所述的方法，其特征在于，
    所述数据类型指示为比特位图，所述比特位图包含N个比特，所述N为预先配置或者预先定义的或者信令通知的，所述N的取值用于指示一传输块所包含的编码块组个数的最大值，N为大于1的整数，所述比特位图用于指示所述至少一个编码数据的位置信息和/或数量。
  16. 如权利要求12-14任一所述的方法，其特征在于，
    所述数据类型指示为比特位图，所述比特位图包含N个比特，所述N为预先配置或者预先定义的或者信令通知的，所述N的取值用于指示一传输块所包含的编码块组个数的最大值，N为大于1的整数，所述比特位图用于指示所述至少一个编码块数据的位置信息和/或数量。
  17. 如权利要求16所述的方法，其特征在于，所述方法还包括：
    接收来自所述第一设备的指示信息，所述指示信息用于指示所述至少一个传输块数据的位置信息和/或数量，所述至少一个传输块数据的数量为所述至少一个传输块数据中的编码块组的个数。
  18. 如权利要求14-17任一项所述的方法，其特征在于，
    所述至少一个编码块数据包含的编码块组的数量、位置信息及大小，与所述至少一个编码块数据在初传时包含的编码块组的数量、位置信息及大小对应相同。
  19. 如权利要求18所述的方法，其特征在于，所述至少一个传输块数据包含的编码块组的位置信息以及大小，与上一次传输的编码数据中传输成功的编码数据包含的编码块组的位置信息及大小相同；或者
    所述至少一个传输块数据包含的编码块组的位置信息以及大小，与上一次传输成功的编码数据中的部分编码数据所包含的编码块组的位置信息及大小相同。
  20. 如权利要求14-19任一项所述的方法，其特征在于，还包括：
    根据用于所述至少一个编码数据的物理资源以及调制编码方案，确定所述至少一个传输块数据包含的编码块组的大小和数量。
  21. 如权利要求12或13所述的方法，其特征在于，
    所述至少一个编码数据包含至少一个传输块数据，所述至少一个传输块数据为初传数据，所述调度类型指示用于指示所述至少一个编码数据包含初传数据；或者
    所述至少一个编码数据包含至少一个编码块数据，所述至少一个编码块数据为重传数据，所述调度类型指示用于指示所述至少一个编码数据包含重传数据。
  22. 如权利要求12-21任一所述的方法，其特征在于，所述接收来自第一设备的至少一个编码数据，包括：
    接收来自所述第一设备的映射到第一物理资源上的所述至少一个编码数据，所述至少一个编码数据包含的编码块或编码块组映射到所述第一物理资源的映射方式满足预先定义的传输块映射规则。
  23. 一种通信装置，其特征在于，包括：用于执行权利要求1-11任一所述方法的至少一个模块。
  24. 一种通信装置，其特征在于，包括：用于执行权利要求12-22任一所述方法的至少一个模块。
  25. 一种芯片系统，其特征在于，包括：至少一个处理器和接口；
    所述接口，用于为所述至少一个处理器提供程序指令或者数据；
    所述至少一个处理器用于执行所述程序指令，以实现权利要求1-11任一所述的方法。
  26. 一种芯片系统，其特征在于，包括：至少一个处理器和接口；
    所述接口，用于为所述至少一个处理器提供程序指令或者数据；
    所述至少一个处理器用于执行所述程序指令，以实现权利要求12-22任一所述的方法。
  27. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储程序，所述程序被至少一个处理器调用时，权利要求1-22任一所述的方法被执行。
  28. 一种计算机程序产品，其特征在于，包括计算机程序，当所述计算机程序在计算机上运行时，使得权利要求1-22任一所述的方法被执行。
  29. 一种通信系统，其特征在于，包括：用于执行权利要求1-11任一所述方法的第一设备，和用于执行权利要求12-22任一所述方法的第二设备。
  30. 一种终端，其特征在于，包括权利要求23所述的通信装置或者权利要求24所述的通信装置中的至少一个，或者，包含权利要求25所述的芯片系统或者权利要求26所述的芯片系统中的至少一个。
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CN116349171A (zh) 2023-06-27
US20230179329A1 (en) 2023-06-08

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