WO2020192769A1 - Data transmission method and apparatus - Google Patents

Data transmission method and apparatus Download PDF

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Publication number
WO2020192769A1
WO2020192769A1 PCT/CN2020/081777 CN2020081777W WO2020192769A1 WO 2020192769 A1 WO2020192769 A1 WO 2020192769A1 CN 2020081777 W CN2020081777 W CN 2020081777W WO 2020192769 A1 WO2020192769 A1 WO 2020192769A1
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WO
WIPO (PCT)
Prior art keywords
symbols
transmission
orphan
group
data
Prior art date
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PCT/CN2020/081777
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French (fr)
Chinese (zh)
Inventor
温容慧
余政
王俊伟
张兴炜
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华为技术有限公司
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Publication of WO2020192769A1 publication Critical patent/WO2020192769A1/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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
    • H04L1/0018—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement based on latency requirement
    • 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
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This application relates to the field of mobile communication technology, and in particular to a method and device for data transmission.
  • the business has high requirements for the reliability of data transmission.
  • the current solution is: the sender repeats the data transmitted once, that is, the same transmission is repeated multiple times. Therefore, the success rate of receiving the data can be improved.
  • one transmission occupies n symbols, and n is an integer greater than 1.
  • the n symbols occupied by a certain transmission may span two time units.
  • the current protocol does not allow one transmission to span two time units, so this problem Need to get a good solution.
  • the present application provides a method and device for data transmission to solve the problem of one transmission spanning two time units, which can improve communication efficiency.
  • the present application provides a data transmission method.
  • the method includes: a communication device determines a usage mode of at least one group of orphan symbols in a time unit, and the usage mode is data transmission, demodulation reference signal DMRS, Transmission Hybrid Automatic Repeat Request HARQ or non-transmission.
  • a group of orphan symbols is a group of symbols, and the number of the group of symbols is less than the number of symbols transmitted at one time; the communication device according to the usage mode, Data transmission is performed on the one time unit.
  • the use modes of the at least two groups of orphan symbols determined by the communication device are the same or different.
  • the communication device for any group of orphan symbols in the at least one group of orphan symbols, the communication device according to the number of the group of orphan symbols, the number of symbols transmitted at one time, and the threshold value, Determine the usage mode of the group of orphan symbols in the time unit. Based on this scheme, the use of orphan symbols can be flexibly determined.
  • the transmission data includes first transmission data and second transmission data; the communication device determines that the ratio of the number of orphan symbols to the number of symbols transmitted at one time is greater than The threshold value, it is determined that the usage mode is the first transmission data, and the first transmission data refers to: the amount of data transmitted by the group of orphan symbols is the same as the amount of data transmitted by the symbols of the one transmission Or, the communication device determines that the ratio of the number of the group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold value, and then determines that the usage mode is the second transmission data, Either DMRS is transmitted, or HARQ is transmitted, or no transmission is performed.
  • the second transmission data means that the data transmitted by the group of orphan symbols is part of the data transmitted by the symbols of the one transmission. Based on this scheme, the specific use of the orphan symbol can be determined.
  • the use mode is the first transmission data; the communication device uses the first transmission power to perform data transmission on the set of orphan symbols in the one time unit, and uses The second transmission power performs data transmission on a symbol transmitted once in the one time unit, and the first transmission power is greater than the second transmission power. Based on this implementation method, it helps to reduce the bit error rate of data transmission, thereby helping to improve communication efficiency.
  • the communication device is a terminal device; the communication device determines the sum of the second transmission power and a preset fixed boost value, and the maximum transmission power allowed for this data transmission. The smaller value is used as the first transmission power; or, the communication device determines a boost value according to the number of orphan symbols and the symbols of the one-time transmission, and determines the difference between the second transmission power and the boost value The smaller value of and the maximum transmission power allowed for this data transmission is used as the first transmission power; or, the communication device selects a boost value from a plurality of boost values pre-configured by the network device, and Determine the smaller value of the sum of the second transmission power and the boost value and the maximum transmission power allowed for this data transmission as the first transmission power; or, the communication device may obtain the first transmission power from the network device in advance.
  • the communication device receives the boost value notified by the network device through signaling, and determines the smaller of the sum of the second transmission power and the boost value, and the maximum transmission power allowed for this data transmission, as the value The first transmission power.
  • the use of the group of orphan symbols is to transmit DMRS, and at least one orphan symbol in the group of orphan symbols is the closest to the at least one orphan symbol in the time unit.
  • the transmitted symbol corresponds.
  • the use of the group of orphan symbols is to transmit DMRS, and at least one orphan symbol in the group of orphan symbols corresponds to at least two symbols that are transmitted once on the time unit.
  • At least one orphan symbol in the set of orphan symbols and the symbol for one transmission corresponding to the at least one orphan symbol are continuous in time, and the at least one orphan symbol is in the first sequence.
  • the number of the group of orphan symbols is two or more
  • the use mode is the third transmission data
  • the third transmission data refers to: the group of orphan symbols
  • the symbols of different one-time transmissions respectively divided into the one time unit according to the equal division rule constitute a new one-time transmission symbol.
  • the communication device is a terminal device or a network device.
  • the communication device is a terminal device; the communication device also receives instruction information, and the instruction information is used to indicate the usage mode of the at least one group of orphan symbols in the one time unit .
  • the indication information is downlink control information DCI or high-layer signaling.
  • the present application provides a data transmission device.
  • the device may be a communication device (such as a terminal device or a network device), or a chip for a communication device.
  • This device has the function of realizing the various embodiments of the first aspect described above. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the present application provides a data transmission device including: a processor and a memory; the memory is used to store computer execution instructions, and when the device is running, the processor executes the computer execution instructions stored in the memory to The device is caused to perform the method described in any of the above-mentioned first aspects.
  • the present application provides a data transmission device, including: including units or means for executing each step of the first aspect.
  • the present application provides a data transmission device, including a processor and an interface circuit, the processor is configured to communicate with other devices through the interface circuit, and execute any of the methods described in the first aspect.
  • the processor includes one or more.
  • the present application provides a data transmission device, including a processor, configured to be connected to a memory, and configured to call a program stored in the memory to execute any of the methods described in the first aspect.
  • the memory can be located inside the device or outside the device.
  • the processor includes one or more.
  • the present application also provides a computer-readable storage medium having instructions stored in the computer-readable storage medium, which when run on a computer, cause a processor to execute any of the methods described in the first aspect.
  • the present application also provides a computer program product including instructions, which when run on a computer, cause the computer to execute any of the methods described in the first aspect.
  • this application also provides a chip system, including a processor, configured to execute any of the methods described in the first aspect.
  • Figure 1 is a schematic diagram of a possible network architecture provided by this application.
  • Figure 2A is an example diagram of data transmission provided by this application.
  • Figure 2B is another example diagram of data transmission provided by this application.
  • Figure 2C is another example diagram of data transmission provided by this application.
  • FIG. 3 is another example diagram of data transmission provided by this application.
  • FIG. 4 is a schematic flowchart of a data transmission method provided by this application.
  • Fig. 5A is another example diagram of data transmission provided by this application.
  • FIG. 5B is another example diagram of data transmission provided by this application.
  • FIG. 6A is another example diagram of data transmission provided by this application.
  • Fig. 6B is another example diagram of data transmission provided by this application.
  • FIG. 7 is another example diagram of data transmission provided by this application.
  • FIG. 8A is another example diagram of data transmission provided by this application.
  • FIG. 8B is another example diagram of data transmission provided by this application.
  • FIG. 8C is another example diagram of data transmission provided by this application.
  • FIG. 9A is another example diagram of data transmission provided by this application.
  • FIG. 9B is another example diagram of data transmission provided by this application.
  • FIG. 10 is a schematic diagram of a data transmission device provided by this application.
  • FIG. 11 is a schematic diagram of another data transmission device provided by this application.
  • a schematic diagram of a possible network architecture to which this application is applicable includes a network device and at least one terminal device.
  • the network equipment and terminal equipment can work on a new radio (NR) communication system, and the terminal equipment can communicate with the network equipment through the NR communication system.
  • NR new radio
  • the network equipment and terminal equipment can also work on other communication systems, and the embodiment of the present application does not limit it.
  • a user equipment can be a wireless terminal device that can receive network equipment scheduling and instruction information.
  • a wireless terminal device can be a device that provides voice and/or data connectivity to users, or a handheld device with wireless connection function , Or other processing equipment connected to the wireless modem.
  • a wireless terminal device can communicate with one or more core networks or the Internet via a wireless access network (e.g., radio access network, RAN).
  • the wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone). , Mobile phones), computers, and data cards, for example, may be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network.
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station (remote station), access point ( access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), subscriber station (subscriber station, SS), user terminal equipment (customer premises equipment, CPE), terminal (terminal), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc.
  • Wireless terminal devices can also be wearable devices and next-generation communication systems, for example, terminal devices in a 5G network or terminal devices in a public land mobile network (PLMN) network that will evolve in the future, and in NR communication systems. Terminal equipment, etc.
  • PLMN public land mobile network
  • a network device is an entity used to transmit or receive signals on the network side, such as a generation NodeB (gNodeB).
  • the network device may be a device used to communicate with mobile devices.
  • the network equipment can be an AP in a wireless local area network (WLAN), a base transceiver in a global system for mobile communication (GSM) or a code division multiple access (CDMA).
  • WLAN wireless local area network
  • GSM global system for mobile communication
  • CDMA code division multiple access
  • BTS BTS
  • BTS base station
  • NodeB, NB base station
  • WCDMA wideband code division multiple access
  • evolutional base station evolutional base station
  • LTE long-term evolution
  • Node B, eNB or eNodeB Node B, eNB or eNodeB
  • relay station or access point or in-vehicle equipment, wearable equipment, and network equipment in the future 5G network or the network in the future evolved public land mobile network (PLMN) network Equipment, or gNodeB in the NR system, etc.
  • PLMN public land mobile network
  • the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be a network equipment.
  • the corresponding cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: Metro cell, Micro cell, and Pico cell (Pico cell), femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the network device may be another device that provides wireless communication functions for the terminal device.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the network device. For ease of description, in the embodiments of the present application, a device that provides a wireless communication function for a terminal device is called a network device.
  • Enhanced Mobile Broadband eMBB
  • Ultra Reliable and Low Latency Communications URLLC
  • Massive Machine-Type Communications mMTC
  • Typical eMBB services include: ultra-high-definition video, augmented reality (AR), virtual reality (VR), etc.
  • the main characteristics of these services are large transmission data volume and high transmission rate.
  • Typical URLLC services include: wireless control in industrial manufacturing or production processes, motion control of unmanned vehicles and unmanned aircraft, and tactile interaction applications such as remote repair and remote surgery.
  • the main feature of these services is that they require ultra-high reliability. Features, low latency, less data transmission and bursting.
  • Typical mMTC services include: smart grid power distribution automation, smart cities, etc.
  • the main features are a huge number of networked devices, a small amount of transmitted data, and data insensitive to transmission delays.
  • These mMTC terminals need to meet low cost and very long standby The need for time.
  • This application is mainly aimed at service types that require high reliability of data transmission, such as URLLC services in the above three types of scenarios.
  • service types such as URLLC services
  • eMBB or mMTC also have high requirements on the reliability of industry data transmission
  • the method of this application is also applicable.
  • the time unit is the smallest time scheduling unit.
  • the smallest time scheduling unit is a transmission time interval (TTI) with a length of 1 ms.
  • TTI transmission time interval
  • the data transmission of the wireless air interface can use a shorter time scheduling unit, for example, a mini-slot or a time slot with a larger subcarrier interval as the minimum time scheduling unit.
  • a mini-slot includes one or more time-domain symbols, where the time-domain symbols may be orthogonal frequency division multiplexing (OFDM) symbols.
  • OFDM orthogonal frequency division multiplexing
  • Mini-slot is a newly introduced concept in NR. If the length of the data symbol scheduled by the RAN device is less than the LTE slot, the data of this length is called a mini-slot. The mini-slot takes a shorter time and is more suitable for low transmission. Data required by the time delay.
  • the time length corresponding to a time unit is not limited, that is, the number of symbols included in a time unit is not limited.
  • a time unit may be an LTE slot, and a time unit includes 14 OFDM symbols.
  • a time unit is an NR mini-slot, and the mini-slot includes 7 OFDM symbols, and so on.
  • the symbol for one transmission refers to the symbol occupied for one data transmission.
  • a group of orphan symbols is a group of symbols, which includes one or more symbols.
  • the number of orphan symbols in a group is less than the number of symbols transmitted at one time.
  • the first k symbols and the last nk symbols are called respectively
  • a group of orphan symbols that is, the first k symbols of the n symbols transmitted at one time are a group of orphan symbols, and the last nk symbols of the n symbols transmitted at one time are a group of orphan symbols.
  • FIG. 2A is an example diagram of data transmission.
  • the same data needs to be repeatedly transmitted multiple times.
  • FIG. 2A 6 repeated transmissions are taken as an example, and the data transmitted for these 6 times are the same.
  • FIG. 2A takes 3 symbols occupied by each data transmission as an example, that is, the number of symbols occupied by one transmission is 3.
  • FIG. 2A It can be seen from Fig. 2A that the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 11. Symbols 12-13 of time unit L and symbol 0 of time unit L+1 occupied by the fourth transmission, symbols 1-3 of time unit L+1 occupied by the fifth transmission, and time occupied by the sixth transmission Symbol 4-6 for unit L+1. Among them, FIG. 2A is described by taking 14 symbols occupied by one time unit as an example.
  • the number of repeated transmissions (the number of repeated transmissions in the example shown in Figure 2A is 6) and the duration of one transmission (that is, the number of symbols transmitted at one time, the number of symbols transmitted at one time in the example shown in Figure 2A is 3) can be It is notified by the network device.
  • the network device can notify the terminal device: the number of repeated transmissions, the time domain location and the duration of the first transmission (that is, the number of symbols occupied by one transmission), the modulation and coding scheme, MCS) and so on, and then the terminal device can determine the duration, time domain location and MCS of each subsequent transmission according to the pre-agreed rules.
  • the fourth transmission has encountered the time unit boundary (or understood as crossing two time units), that is, the first 2 symbols of the fourth transmission are located in the time unit L, and the last symbol is located in the time unit L.
  • the time unit is L+1, so the symbols used in the fourth transmission are a group of orphan symbols.
  • the symbols 12 and 13 of the time unit L are called a group of orphan symbols of the time unit L
  • the symbol 0 of the time unit L+1 is called a group of orphan symbols of the time unit L+1.
  • the current agreement stipulates that a transmission cannot cross the boundary of a time unit, that is, a transmission cannot cross two time units. That is, the data transmission method shown in FIG. 2A is not allowed. Therefore, it is necessary to redesign the data transmission mode in FIG. 2A.
  • FIG. 3 Another example diagram of data transmission provided for this application. This figure is an example of uplink transmission. Orphans may also appear at the uplink and downlink transition points in the Time Division Duplexing (TDD) scenario. symbol.
  • TDD Time Division Duplexing
  • the slot format is DDFUUUUDDFUUUU, where D represents for downlink transmission, and U represents for uplink transmission.
  • the network device notifies the terminal device that one transmission lasts for 3 symbols.
  • the second transmission originally occupied symbols 5-7 of slot L, but because symbol 7 is used for downlink transmission, it cannot be used; the fourth transmission is due to The time slot boundary, therefore, actually occupy the symbols 12-13 of the time slot L; the sixth transmission originally occupied the symbols 5-7 of the time slot L+1, but because the symbol 7 is used for downlink transmission, it cannot be used. Therefore, for the example in Figure 3, the second, fourth, and sixth transmissions actually occupy only 2 symbols instead of the 3 symbols notified by the network device. Therefore, the symbols 5 and 6 of the time slot L in the example of FIG. 3, the symbols 12 and 13 in the time slot L, and the symbols 5 and 6 in the time slot L+1 are all a group of orphan symbols.
  • the first possible solution is to directly merge a group of orphan symbols at the end of the time unit into the symbols of the previous transmission to form a new transmission.
  • a group of orphan symbols at the head of the time unit they are merged into the symbols of the next transmission to form a new transmission symbol (refer to the example in Figure 2B);
  • the second possible solution The solution is: directly merge a group of orphan symbols at the end of the time unit into the symbols of the previous transmission to form a new transmission symbol, and for a group of orphan symbols at the head of the time unit, the time unit Re-design according to the number of symbols transmitted at one time (refer to the example in Figure 2C).
  • the result shown in Figure 2B is obtained, that is, a group of orphan symbols 12-13 of time unit L are merged into symbols 9-11 of time unit L to form the third transmission ( Occupy 5 symbols), and merge a group of orphan symbols 0 of time unit L+1 to symbols 1-3 of time unit L+1 to form the fourth transmission (occupies 4 symbols). Therefore, the result of the redesign is: the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 13. Symbols 0-3 of the time unit L+1 occupied by the fourth transmission, symbols 4-6 of the time unit L+1 occupied by the fifth transmission, symbols 7 of the time unit L+1 occupied by the sixth transmission -9.
  • the result shown in Fig. 2C is obtained, that is, a group of orphan symbols 12-13 of time unit L are merged into symbols 9-11 of time unit L to form the third transmission ( Occupy 5 symbols), and redesign the time unit L+1 according to the number of symbols transmitted at one time. Therefore, the result of the redesign is: the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 13. Symbols 0-2 of the time unit L+1 occupied by the fourth transmission, symbols 3-5 of the time unit L+1 occupied by the fifth transmission, symbols 6 of the time unit L+1 occupied by the sixth transmission -8.
  • this application provides a data transmission method that can be used to solve the problem mentioned in the background art.
  • the problems in the prior art, and the method of this application can also solve the problem of increasing delay in the two possible solutions mentioned above, that is, the method of this application can achieve both efficiency and time delay , Better use the orphan symbol.
  • This method can be used for data transmission in the downlink or uplink direction.
  • the communication equipment in this application is a general term for terminal equipment and network equipment, that is, the communication equipment can be either a terminal equipment or a network equipment.
  • the method shown in Figure 4 includes the following steps:
  • Step 401 The terminal device determines the usage mode of at least one group of orphan symbols in a time unit, and the usage mode is transmission data, transmission demodulation reference signal (Demodulation Reference Signal, DMRS), transmission hybrid automatic repeat request (Hybrid automatic repeat request) , HARQ), one of not transmitting.
  • transmission demodulation reference signal Demodulation Reference Signal
  • HARQ transmission hybrid automatic repeat request
  • Step 402 The network device determines a usage mode of at least one group of orphan symbols in a time unit, and the usage mode is one of data transmission, DMRS transmission, HARQ transmission, and no transmission.
  • both the terminal device and the network device determine that the use of the at least two sets of orphan symbols is the same, or it is also possible that both the terminal device and the network device determine the at least two sets of orphan symbols.
  • the two groups of orphan symbols are used in different ways.
  • Step 403 The network device and the terminal device perform data transmission on the one time unit according to the usage mode.
  • step 403 can be understood as: the network device sends data to the terminal device in the time unit according to the usage mode, and the terminal device transmits data in the time unit according to the usage mode. Receive data from network devices on the network.
  • step 403 can be understood as: the terminal device sends data to the network device in the time unit according to the usage mode, and the network device transmits data in the time unit according to the usage mode. On receiving data from the terminal device.
  • step 401 may be executed first and then step 402 may be executed, or step 402 may be executed first and then step 401 may be executed, or simultaneously.
  • the terminal device and the network device determine the use mode of at least one group of orphan symbols in a time unit based on the same rule, and the terminal device and the network device determine the at least one group of orphan symbols in a time unit The way the symbols are used is the same. For example, both the terminal equipment and the network equipment determine that the use mode of at least one set of orphan symbols is to transmit data, or both determine the use mode of at least one set of orphan symbols to transmit DMRS, or both determine that the use mode of at least one set of orphan symbols is not performed. Transmission, or it is determined that at least one group of orphan symbols is used to transmit HARQ.
  • data transmission it can be further divided into three data transmission methods, which are respectively referred to as the first method of data transmission, the second method of data transmission, and the third method of data transmission. Or it can be called the first data transmission method, the second data transmission method, and the third data transmission method, or it can also be called the first transmission data, the second transmission data, and the third transmission data, or it can also be called rate matching. (rate matching) method, puncturing method or try to divide the method equally.
  • rate matching rate matching
  • Use method 1 The first method to transmit data (rate matching (rate matching) method)
  • the first way to transmit data means that the amount of data transmitted by a group of orphan symbols is the same as the amount of data transmitted by symbols in one transmission.
  • the amount of data here refers to the amount of original data before encoding, that is, the amount of information data to be transmitted from the higher layer to the physical layer.
  • the coding efficiency of a group of orphan symbols is greater than the coding efficiency of one transmission.
  • the coding efficiency of a group of orphan symbols can be determined according to the coding efficiency of the symbols transmitted at one time, the number of a group of orphan symbols, and the number of symbols transmitted at one time.
  • the coding efficiency of a set of orphan symbols can also be determined according to the coding efficiency of a set of orphan symbols, the number of available time-frequency resources in a set of orphan symbols, and the number of available time-frequency resources in a set of symbols transmitted at one time. .
  • the first possible solution is to use the group of orphan symbols at the end of the time unit as a new transmission symbol, and the group of orphan symbols at the head of the time unit as a new transmission symbol (refer to Figure 5A).
  • Example) the second possible solution is to use the group of orphan symbols at the end of the time unit as a new transmission symbol, and for the group of orphan symbols at the head of the time unit, the time unit is re- Design according to the number of symbols to be transmitted at one time (refer to the example in Figure 5B).
  • the two time units here may be the same time unit or different time units. Subsequent embodiments of the present application all use different time units as an example for description. For the case where the two time units are the same time unit, similar processing can be performed, and details are not repeated here.
  • the result shown in Figure 5A can be obtained, that is, a group of orphan symbols 12-13 of the time unit L is used as a new transmission. (Occupies 2 symbols), the group of orphan symbols 0 of the time unit L+1 is used as a new transmission alone (occupies 1 symbol). Therefore, the result of the redesign is: the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 11.
  • the data transmitted by these 6 repeated transmissions are the same, or the amount of data transmitted is the same. It can be seen that based on this implementation, 6 repeated transmissions occupy a total of 15 symbols, while Figure 2B occupies a total of 21 symbols, and Figure 2C occupies a total of 20 symbols, so this method reduces the number of symbols used, that is, reduces the delay .
  • Figure 2A based on the first method of transmitting data, according to the second solution described above, the result shown in Figure 5B can be obtained, that is, a group of orphan symbols 12-13 of the time unit L is used as a new transmission. (Occupy 2 symbols), redesign the symbols of the time unit L+1 according to the number of symbols transmitted at one time. Therefore, the result of the redesign is: the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 11.
  • the above two solutions for data transmission in the first mode can both achieve the purpose of reducing time delay, and thus can reduce time delay on the premise of ensuring the reliability of data transmission.
  • the first transmission, the second transmission, the third transmission, and the sixth transmission all occupy 3 symbols, and the coding efficiency of the symbols occupied by the four transmissions is the same, for example, it is represented by C1 , And the fourth transmission and the fifth transmission occupy 2 symbols and 1 symbol respectively, so their coding efficiency is different from C1.
  • C2 represents the coding efficiency of the fourth transmission
  • C3 represents the fifth The coding efficiency of the second transmission.
  • the first transmission, the second transmission, the third transmission, the fifth and the sixth transmission all occupy 3 symbols, and the coding efficiency of the symbols occupied by the five transmissions is the same.
  • it is represented by C1
  • the coding efficiency of the fourth transmission is different from C1 because it occupies 2 symbols.
  • C4 is used to represent the coding efficiency of the fourth transmission in FIG. 5B.
  • the coding efficiency of symbols occupied by one transmission may be predefined by the protocol or pre-configured on the network side (for example, the network device is configured for itself and the terminal device).
  • Method 1 Determine the coding efficiency of a group of orphan symbols according to the coding efficiency of the symbols transmitted at one time, the number of orphan symbols, and the number of symbols transmitted at one time.
  • the coding efficiency of a group of orphan symbols (coding efficiency of symbols transmitted at one time* Number)/Number of orphan symbols in a group.
  • the coding efficiency of a group of orphan symbols (C1*n)/k.
  • the modulation order of a group of orphan symbols is the same as the modulation order of the symbols transmitted once, for example, both are 2.
  • the aforementioned coding efficiency can also be further adjusted to obtain other coding efficiency as the final coding efficiency.
  • the aforementioned coding efficiency can also be further adjusted to obtain other coding efficiency as the final coding efficiency.
  • the aforementioned coding efficiency can also be further adjusted to obtain other coding efficiency as the final coding efficiency.
  • the coding efficiency such as the final coding efficiency C2' means that C2' may be slightly larger than C2, or slightly smaller than C2.
  • the first column is the MCS index
  • the second column is the adjustment order
  • the third column is the target code rate
  • the fourth column is the spectral efficiency.
  • the coding efficiency of a group of orphan symbols (coding efficiency of symbols transmitted at one time* Number)/Number of a group of orphan symbols* (Modulation order of symbols transmitted at one time/Modulation order of a group of orphan symbols).
  • C1 to represent the coding efficiency of symbols transmitted at one time
  • n to represent the number of symbols to be transmitted at one time
  • k to represent the number of a group of orphan symbols
  • Q1 to represent the modulation order of symbols to be transmitted at one time
  • Q2 to represent a group of orphan symbols.
  • the modulation order of, then the coding efficiency of a group of orphan symbols (C1*n)/k*(Q1/Q2).
  • the aforementioned coding efficiency can also be further adjusted to obtain other coding efficiency as the final coding efficiency.
  • the first column is the MCS index
  • the second column is the adjustment order
  • the third column is the target code rate
  • the fourth column is the spectral efficiency.
  • Method 2 Determine the coding efficiency of a group of orphan symbols according to the coding efficiency of a group of orphan symbols, the number of available time-frequency resources in a group of orphan symbols, and the number of available time-frequency resources in a group of symbols transmitted at one time.
  • the coding efficiency of a group of orphan symbols (the coding efficiency of the symbols of one transmission * the available symbols of the transmission The number of time-frequency resources)/the number of available time-frequency resources in a group of orphan symbols.
  • resource elements resource elements
  • C1 1/3
  • the coding efficiency of a group of orphan symbols (coding efficiency of the symbols transmitted at one time*in the symbols transmitted at one time) The number of available time-frequency resources)/the number of available time-frequency resources in a group of orphan symbols*(the modulation order of symbols transmitted at one time/the modulation order of a group of orphan symbols).
  • C1 to represent the coding efficiency of symbols transmitted at one time
  • x to represent the number of available time-frequency resources in a symbol of one transmission
  • y to represent the number of available time-frequency resources in a group of orphan symbols
  • Q1 to represent the number of symbols transmitted at one time.
  • Modulation order, Q2 represents the modulation order of a group of orphan symbols
  • the coding efficiency of a group of orphan symbols (C1*x)/y*(Q1/Q2).
  • the aforementioned coding efficiency can also be further adjusted to obtain other coding efficiency as the final coding efficiency.
  • the specific implementation method is the same as the implementation method combined with Table 1 in the above method 1, and the foregoing description can be referred to.
  • spectrum efficiency calculation can also be used to replace the foregoing coding efficiency calculation.
  • the spectrum efficiency of a group of orphan symbols (the symbol of one transmission Spectrum efficiency*The number of available time-frequency resources in a symbol transmitted at one time)/The number of available time-frequency resources in a group of orphan symbols, and then find the coding efficiency and modulation order matching the calculated spectrum efficiency from Table 1.
  • matching refers to the same row in Table 1 (that is, the coding efficiency, modulation order, and spectrum efficiency are in the same row).
  • the sender (terminal device or network device) can use the same transmission power for data on the symbols transmitted once and on a group of orphan symbols. transmission. Taking the time unit L in FIG. 5A as an example, the sending end uses the same transmission power for the first transmission, the second transmission, the third transmission, and the fourth transmission.
  • the transmitting end can use different transmission powers for data transmission on the symbols transmitted once and a group of orphan symbols. Since the number of a group of orphan symbols is less than the symbols transmitted at one time, the coding efficiency of a group of orphan symbols is greater than the coding efficiency of one transmission, which may lead to an increase in the bit error rate of the data on the receiving end receiving a group of orphan symbols.
  • the application can adjust the transmission power of the data on a group of orphan symbols from the second transmission power to the first transmission power, and the transmission power The data transmission power remains at the second transmission power, where the first transmission power is greater than the second transmission power. That is, the communication device uses the first transmission power to perform data transmission on a group of orphan symbols in the time unit, and uses the second transmission power to perform data transmission on other symbols in the time unit (i.e., symbols of a normal transmission).
  • the method for adjusting the first transmission power will be described with the sending end being a terminal device or a network device respectively.
  • Case 1 The sending end is a network device.
  • Method 1 The network device determines the sum of the second transmission power and the preset fixed boost value as the first transmission power.
  • the network device determines the boost value according to the number of a group of orphan symbols and the symbols transmitted once, and determines the sum of the second transmission power and the boost value as the first transmission power.
  • the first transmission power the second transmission power*(n/k).
  • boost second transmission power*(n/k-1)
  • n is the number of symbols transmitted at one time
  • k is the number of a group of orphan symbols.
  • Method 3 The network device selects a boost value from a plurality of pre-configured boost values, and determines the sum of the second transmission power and the boost value as the first transmission power.
  • Method 4 The network device selects a transmission power from a plurality of pre-configured transmission powers, and determines the selected transmission power as the first transmission power.
  • the first transmission power is any one of 10dB, 13dB and 16dB.
  • Case 2 The sending end is a terminal device.
  • the terminal device Since the transmission power of the terminal device is generally limited, the terminal device has a maximum transmission power that allows this data transmission, which is denoted by MaxP below.
  • Method 1 The terminal device determines the smaller of the sum of the second transmission power and the preset fixed boost value and MaxP as the first transmission power.
  • the terminal device determines the boost value according to the number of a group of orphan symbols and the symbols transmitted at one time, and determines the smaller of the second transmission power, the sum of the boost value, and MaxP as the first transmission power.
  • the first transmission power min (the second transmission power*(n/k), MaxP).
  • boost second transmission power*(n/k-1)
  • first transmission power min(second transmission power+second transmission power*(n/k-1)
  • MaxP min( The second transmission power *(n/k), MaxP).
  • n is the number of symbols transmitted at one time
  • k is the number of a group of orphan symbols.
  • Method 3 The terminal device selects a boost value from a plurality of boost values pre-configured by the network device, and determines the smaller value of the sum of the second transmission power, the boost value, and MaxP as the first transmission power.
  • 3 boost values which are 3dB, 6dB and 9dB
  • the first transmission power min (the second transmission power + boost value, MaxP)
  • the boost value is any of 3dB, 6dB and 9dB.
  • Method 4 The terminal device selects a transmission power from multiple transmission powers pre-configured by the network device, and determines the smaller of the selected transmission power and MaxP as the first transmission power.
  • the first transmission power is any one of min (10dB, MaxP), min (13dB, MaxP) and min (16dB, MaxP).
  • Method 5 The terminal device receives the boost value notified by the network device through signaling, and determines the smaller of the sum of the second transmission power and the boost value, and MaxP as the first transmission power.
  • the second way of transmitting data means that the data transmitted by a group of orphan symbols is part of the data transmitted by the symbols of one transmission.
  • the data transmitted by the k orphan symbols can be the data transmitted by the first k symbols in the symbols transmitted at one time, or it can be The data transmitted by the last k symbols in the symbols transmitted at one time, or the data transmitted by any consecutive k symbols in the symbols transmitted at one time, etc., are not limited in this application.
  • the first possible solution is to use the group of orphan symbols at the end of the time unit as a new transmission symbol, and the group of orphan symbols at the head of the time unit as a new transmission symbol (refer to Figure 5A).
  • Example) the second possible solution is to use a group of orphan symbols at the end of the time unit as a new symbol for a transmission, and for the orphan symbols at the head of the time unit, the time unit is re-accorded to The number of transmitted symbols is designed (refer to the example of Fig. 5B).
  • the data transmitted for the first, second, third, and sixth time is the same, or the amount of data transmitted is the same, and the amount of data transmitted for the fourth and fifth times is the first time , Part of the data transmitted for the second, third or sixth time.
  • the data transmitted in the fourth time is the same as the data transmitted in symbols 9 and 10 of the third transmission.
  • Figure 2A based on the first method of transmitting data, according to the second solution described above, the result shown in Figure 5B can be obtained, that is, a group of orphan symbols 12-13 of the time unit L is used as a new transmission. (Occupy 2 symbols), redesign the symbols of the time unit L+1 according to the number of symbols transmitted at one time. Therefore, the result of the redesign is: the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 11.
  • the data transmitted for the first, second, third, fifth and sixth time is the same, or the amount of data transmitted is the same, and the amount of data transmitted for the fourth time is the first time. , Part of the data transmitted for the second, third, fifth or sixth time.
  • the data transmitted in the fourth time is the same as the data transmitted in symbols 9 and 10 of the third transmission. It can be seen that based on this implementation, 6 repeated transmissions occupy a total of 17 symbols, while Figure 2B occupies a total of 21 symbols, and Figure 2C occupies a total of 20 symbols. Therefore, this method reduces the number of symbols used, that is, reduces the delay. .
  • the above two solutions for data transmission in the second mode can both achieve the purpose of reducing time delay. Therefore, the time delay can be reduced on the premise of ensuring the reliability of data transmission, which helps to improve communication efficiency.
  • the coding efficiency of a group of orphan symbols and the coding efficiency of one transmission can adopt the same coding efficiency.
  • the third mode of use can be used, that is, the third mode to transmit data.
  • the third mode of data transmission means: a group of orphan symbols are divided into Different once-transmitted symbols in the time unit constitute a new once-transmitted symbol.
  • the data volume of the new one-time transmission is the same as the data volume of the original one-time transmission.
  • the first possible solution is: divide a group of orphan symbols at the end of the time unit into different symbols of one transmission in the time unit according to the equal division rule to form a new symbol for one transmission, and divide one of the symbols at the head of the time unit.
  • the group of orphan symbols is also divided into different time units according to the equal division rule to form a new transmission symbol (refer to the example shown in FIG. 6A);
  • the second possible solution is to divide the time unit A group of orphan symbols at the end are divided into different symbols in the time unit according to the equal division rule to form a new symbol in a transmission.
  • the time unit is re-based
  • the number of transmitted symbols is designed (refer to the example shown in Fig. 6B).
  • FIG. 6A data is transmitted based on the second method.
  • a group of orphan symbols 12 of the time unit L is divided into the second transmission
  • the symbols in the symbols constitute the new second transmission symbols (ie symbols 6-9 in the time unit L)
  • the group of orphan symbols 13 in the time unit L is divided into the symbols in the third transmission to form a new third transmission
  • the transmitted symbols that is, symbols 10-13 in time unit L
  • divide a group of orphan symbols 0 of time unit L+1 into the symbols of the fifth transmission to form a new symbol of the fourth transmission that is, time unit Symbols 0-3 in L+1
  • a new transmission occupying symbols 7-9 in time unit L+1.
  • the result of the redesign is: the first transmission occupies the symbols 3-5 of the time unit L, the second transmission occupies the symbols 6-9 of the time unit L, and the third transmission occupies the symbols of the time unit L 10- 13. Symbols 0-3 of the time unit L+1 occupied by the fourth transmission, symbols 4-6 of the time unit L+1 occupied by the fifth transmission, symbols 7 of the time unit L+1 occupied by the sixth transmission -9. Among them, the data transmitted six times are the same. It can be seen that based on this implementation, 6 repeated transmissions occupy a total of 21 symbols, while Figure 2B occupies a total of 21 symbols, and Figure 2C occupies a total of 20 symbols. Therefore, this method is compared with the method of Figure 2B or Figure 2C. Basically, the delay remains the same.
  • FIG. 6B data is transmitted based on the second method.
  • a group of orphan symbols 12 of the time unit L is divided into the second transmission
  • the symbols in the symbols constitute the new second transmission symbols (ie symbols 6-9 in the time unit L)
  • the group of orphan symbols 13 in the time unit L is divided into the symbols in the third transmission to form a new third transmission
  • the transmitted symbols that is, symbols 10-13 in the time unit L
  • the symbols of the time unit L+1 are redesigned according to the number of symbols transmitted at one time.
  • the result of the redesign is: the first transmission occupies the symbols 3-5 of the time unit L, the second transmission occupies the symbols 6-9 of the time unit L, and the third transmission occupies the symbols of the time unit L 10- 13. Symbols 0-2 of the time unit L+1 occupied by the fourth transmission, symbols 3-5 of the time unit L+1 occupied by the fifth transmission, symbols 6 of the time unit L+1 occupied by the sixth transmission -8. Among them, the data transmitted six times are the same. It can be seen that based on this implementation, 6 repeated transmissions occupy a total of 20 symbols, while Figure 2B occupies a total of 21 symbols, and Figure 2C occupies a total of 20 symbols. Therefore, this method is compared with the method of Figure 2B or Figure 2C. Basically, the delay remains the same.
  • the symbols of these transmissions can be used more than the symbols of the normal transmission.
  • the specific calculation method of the coding efficiency can be the same as the calculation method in the above-mentioned use mode 1, which will not be repeated here.
  • the transmission power of these transmissions can be reduced.
  • the method of calculating the reduced transmission power is the opposite process to the method of calculating the increased transmission power in the above use mode 1. , So you can refer to the aforementioned method, which will not be repeated here. As the transmission power is reduced, resource overhead can be saved.
  • a group of orphan symbols is not divided into the symbols of the first transmission.
  • a group of orphan symbols 12 and 13 of time unit L are not divided into the first transmission (ie, symbols 3-5 of time unit L). This is because: the number of symbols occupied by the first transmission needs to be used as a reference to learn the number of symbols occupied by a normal transmission, so it is not suitable for adding symbols. Therefore, in specific implementation, it is possible to consider dividing a group of orphan symbols into symbols of one transmission except the symbols of the first transmission.
  • a division rule can be given: the number of orphan symbols in a time unit is k, and the number of orphan symbols in a time unit shall be divided equally among the m transmissions in the time unit. If the unit includes the first transmission, then this transmission does not participate in the equal division.
  • the number of symbols obtained by the division of the next k%m transmission is ceil(k/m), and the number of symbols obtained by the division of the remaining transmissions Is floor(k/m), where ceil means round up, and floor means round down.
  • At least one orphan symbol in a group of orphan symbols corresponds to the symbol transmitted most recently from the at least one orphan symbol in a time unit.
  • the first transmission occupies the symbols 3-5 of the time unit L
  • the second transmission occupies Symbols 6-8 of time unit L
  • symbols 9-11 of time unit L occupied by the third transmission symbols 12-13 of time unit L occupied by the fourth transmission
  • time unit L+1 occupied by the fifth transmission Symbols 0-3, symbols 4-6 of the time unit L+1 occupied by the sixth transmission.
  • 6 repeated transmissions occupy a total of 18 symbols
  • Figure 2B occupies a total of 21 symbols
  • Figure 2C occupies a total of 20 symbols. Therefore, this method is compared with the method of Figure 2B or Figure 2C. Can reduce time delay.
  • a group of orphan symbols 12-13 of the time unit L is taken as a single transmission symbol (that is, using the above-mentioned use mode 1 or use mode 2), and the time unit L+1
  • the group orphan symbol 0 is used to transmit the DMRS, and the DMRS is the DMRS corresponding to the fifth transmission.
  • the first symbol ie, symbol 3 of the time unit L
  • one DMRS may also be used as a shared DMRS for two transmissions.
  • the DMRS on symbol 3 of the time unit L in FIG. 7 is a shared DMRS for the first transmission and the second transmission, and so on.
  • FIG. 8A is an example diagram of data transmission provided for this application.
  • the first transmission occupies symbols 4-6 of time unit L
  • the second transmission occupies symbols 7-9 of time unit L
  • the third transmission occupies symbols 10-12 of time unit L
  • the fourth transmission Symbol 13 of the time unit L occupied and symbols 0-1 of the time unit L+1
  • symbols 2-4 of the time unit L+1 occupied by the fifth transmission symbols of the time unit L+1 occupied by the sixth transmission 5-7. Therefore, this FIG. 8A is similar to FIG. 2A, and there is also the problem of orphan symbols crossing the time unit, so it also needs to be redesigned.
  • Fig. 8B is a design scheme for the example of Fig. 8A.
  • the result of the redesign is: the first transmission occupies symbols 4-6 of the time unit L, and the second transmission occupies the time unit Symbols 7-9 of L, symbols 10-12 of the time unit L occupied by the third transmission, and a group of orphan symbols 0-1 of the time unit L+1 occupied by the fourth transmission (that is, use the above-mentioned method 1 or use Manner 2), symbols 2-4 of the time unit L+1 occupied by the fifth transmission, and symbols 5-7 of the time unit L+1 occupied by the sixth transmission.
  • a group of orphan symbols 0-1 of the time unit L+1 is taken as a single transmission symbol (that is, using the above-mentioned use mode one or two), and the orphan symbol of the time unit L Symbol 13 is used to transmit DMRS, and the DMRS is the DMRS corresponding to the third transmission.
  • the first symbol ie, symbol 4 of the time unit L
  • one DMRS may also be used as a shared DMRS for two transmissions.
  • the DMRS on symbol 4 of the time unit L in FIG. 8B is a shared DMRS for the first transmission and the second transmission, and so on.
  • the DMRS corresponding to the third transmission is placed in the symbol after the symbol of the transmitted data.
  • you can It is designed to carry the DMRS in the symbol before the data symbol.
  • FIG. 8C which is a variant design solution of the example shown in FIG. 8B
  • the DMRS of the third transmission occupies the symbol 10 of the time unit L
  • the data of the third transmission occupies the symbol 10 of the time unit L.
  • Symbols 11-13 It can be understood that an orphan symbol and the symbol of one transmission corresponding to an orphan symbol are continuous in time, and the orphan symbol sequence is first.
  • Method 2 At least one orphan symbol in a group of orphan symbols corresponds to at least two symbols transmitted at one time on the time unit.
  • the first transmission occupies symbols 3-6 of the time unit L
  • the second transmission occupies Symbols 7-9 of time unit L
  • symbols 10-13 of time unit L occupied by the third transmission symbols 0-3 of time unit L+1 occupied by the fourth transmission
  • time unit L occupied by the fifth transmission Symbols 4-6 of +1
  • symbols 7-9 of time unit L+1 occupied by the sixth transmission 6 repetitive transmissions occupy a total of 21 symbols
  • Figure 2B occupies a total of 21 symbols
  • Figure 2C occupies a total of 20 symbols. Therefore, this method is compared with the method of Figure 2B or 2C.
  • the extension effect is equivalent.
  • the symbols 12-13 of the time unit L are all used to transmit DMRS, and the symbols for transmitting DMRS are further placed before the symbols for transmitting data, that is, the orphan symbol sequence comes first.
  • the DMRS transmitted by the symbol 3 of the time unit L is the shared DMRS for the first transmission and the second transmission
  • the DMRS transmitted by the symbol 10 of the time unit L is the DMRS corresponding to the third transmission.
  • the orphan symbol 0 is also used to transmit the DMRS
  • the DMRS is the DMRS corresponding to the fourth transmission.
  • this application does not limit the design method of the DMRS adopted for the fifth and sixth transmissions.
  • the first symbol (such as symbol 4 and symbol 7 of the time unit L+1) transmitted at a time can be used as the transmission DMRS.
  • one DMRS may be used as a shared DMRS for two transmissions, for example, the DMRS on symbol 4 of the time unit L+1 is a shared DMRS for the fifth transmission and the sixth transmission, and so on.
  • the shared DMRS for the first transmission and the second transmission is placed before the symbol of the first transmission.
  • it can be designed to place the shared DMRS in the symbol between two transmissions.
  • Figure 9B which is a variant design of the example shown in Figure 9A
  • the shared DMRS for the first transmission and the second transmission is the symbol placed between the first transmission and the second transmission.
  • Medium ie the symbol 6 of the time unit L.
  • a group of orphan symbols is not used in any way, or it is understood that a group of orphan symbols is vacant, or a group of orphan symbols is not used for transmitting data.
  • a group of orphan symbols in the time unit is used to transmit HARQ, and the HARQ is used to feed back the data reception result of the previous transmission of the group of orphan symbols.
  • the reception result may be successful reception or unsuccessful reception.
  • the HARQ is used to notify the network device whether the subsequent repeated transmission of the same data can be terminated in advance.
  • multiple one-time transmissions span multiple time units.
  • 6 one-time transmissions occupy time unit L and time unit L+1, and the same can be used in time unit L and time unit L+1.
  • the use of orphan symbols can also be a different set of orphan symbols, which is not limited in this application.
  • Method 1 according to the number of a group of orphan symbols, the number of symbols transmitted at one time, and the threshold value, determine the use mode of a group of orphan symbols in a time unit.
  • the method can be applied to network equipment and terminal equipment.
  • the use mode is the first mode of data transmission (that is, the first mode of use).
  • the use mode is the second mode of data transmission (that is, the second mode of use), or the transmission of DMRS (that is, The above use mode 4), or no transmission (that is, the above use mode 5) or HARQ transmission (that is, the above use mode 6).
  • the specific data transmission in the second mode, DMRS, HARQ, or no transmission may be pre-selected.
  • the network device and the terminal device may pre-determine that when the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold value, the use mode of the group of orphan symbols is the second mode to transmit data.
  • the network device and the terminal device may pre-determine that when the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is less than or equal to a threshold value, the use mode of a group of orphan symbols is to transmit DMRS.
  • the network device and the terminal device may agree in advance: when the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold value, the use mode of a group of orphan symbols is to transmit HARQ.
  • the network device and the terminal device may pre-determine that when the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold value, the use mode of the orphan symbols is no transmission.
  • the foregoing threshold value may be predefined by the protocol, may also be pre-configured to the network device and the terminal device, or may also be configured to the terminal device after the network device is determined.
  • the use mode is the first mode to transmit data. If it is determined that the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is less than the threshold, then the use mode is determined to be the second mode of data transmission (ie, the above-mentioned use mode 2), or the transmission of DMRS (the above-mentioned use mode 4) , Or no transmission (that is, the above-mentioned use mode 5) or HARQ (that is, the above-mentioned use mode 6).
  • the specific implementation process is similar to the aforementioned solution, and will not be repeated here.
  • Method 2 The terminal device receives instruction information, and the instruction information is used to indicate the usage mode.
  • the terminal device may receive indication information from the network device, and the indication information may be Downlink Control Information (DCI) or high-level signaling.
  • DCI Downlink Control Information
  • high-level signaling For example, the terminal device may receive indication information from the network device, and the indication information may be Downlink Control Information (DCI) or high-level signaling.
  • DCI Downlink Control Information
  • high-level signaling For example, the terminal device may receive indication information from the network device, and the indication information may be Downlink Control Information (DCI) or high-level signaling.
  • DCI Downlink Control Information
  • the network device in addition to using the method 1 described above to determine the use mode of the orphan symbol, the network device can also indicate which use mode to use.
  • the network device instructs the terminal device to use the above-mentioned first method to transmit data, or second method to transmit data, or third method to transmit data, or transmit DMRS, or transmit HAQR, or not to transmit. Then the terminal device can transmit data according to the usage mode of a group of orphan symbols indicated by the network device.
  • the network device instructs the terminal device to transmit data, or transmit DMRS, or transmit HAQR, or not to transmit. Then the terminal device can transmit data according to the usage mode indicated by the network device. Then when the use mode of a group of orphan symbols indicated by the network device is one of transmitting DMRS, or transmitting HAQR, or not transmitting, the terminal device can use the use mode of the group of orphan symbols to transmit data, when the network device indicates When the use of a group of orphan symbols is to transmit data, the terminal device needs to further determine whether to transmit data in the first mode or the second mode in the transmission data. For the specific judgment method, please refer to the description of the above method 1. Repeat it again.
  • Method 3 both the terminal equipment and the network equipment use the third method to transmit data (that is, the third method mentioned above).
  • the protocol-defined terminal equipment and network equipment both use the third method to transmit data
  • the pre-configured network equipment and terminal equipment both use the third method to transmit data, or it can also be notified after the network device determines to use the third method to transmit data Terminal Equipment.
  • the terminal device and the network device can determine the usage mode of a group of orphan symbols, and the usage mode of the determined group of orphan symbols is the same, and the two parties can realize correct communication.
  • the reasonable use of orphan symbols is realized without increasing or even reducing the time delay, which solves the problem that a transmission spans two time units and helps to improve communication efficiency.
  • each network element described above includes hardware structures and/or software modules corresponding to each function.
  • the present invention can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the present invention.
  • the device 1000 may exist in the form of software or hardware.
  • the apparatus 1000 may include: a processing unit 1002 and a communication unit 1003.
  • the communication unit 1003 may include a receiving unit and a sending unit.
  • the processing unit 1002 is used to control and manage the actions of the device 1000.
  • the communication unit 1003 is used to support communication between the device 1000 and other network entities.
  • the device 1000 may further include a storage unit 1001 for storing program codes and data of the device 1000.
  • the processing unit 1002 may be a processor or a controller, for example, a general-purpose central processing unit (central processing unit, CPU), a general-purpose processor, a digital signal processing (digital signal processing, DSP), and an application specific integrated circuit (application specific integrated circuit). circuits, ASIC), field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the storage unit 1001 may be a memory.
  • the communication unit 1003 is an interface circuit of the device for receiving signals from other devices.
  • the communication unit 1003 is an interface circuit for the chip to receive signals from other chips or devices, or an interface circuit for the chip to send signals to other chips or devices.
  • the apparatus 1000 may be a communication device (such as a terminal device or a network device) in any of the foregoing embodiments, and may also be a chip for a communication device.
  • the processing unit 1002 may be a processor, for example, and the communication unit 1003 may be a transceiver, for example.
  • the transceiver may include a radio frequency circuit
  • the storage unit may be, for example, a memory.
  • the processing unit 1002 may be a processor, for example, and the communication unit 1003 may be an input/output interface, a pin, or a circuit, for example.
  • the processing unit 1002 can execute computer-executable instructions stored in the storage unit.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a communication device located outside the chip.
  • the storage unit such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), etc.
  • the apparatus 1000 is a communication device, a processing unit, used to determine the use mode of at least one group of orphan symbols in a time unit, and the use mode is transmission of data, transmission of demodulation reference signal DMRS, and transmission of mixed Automatic repeat request HARQ or non-transmission.
  • a group of orphan symbols is a group of symbols, and the number of the group of symbols is less than the number of symbols transmitted at one time; the communication unit is configured to: Data transmission is performed on the one time unit.
  • the use modes of the at least two groups of orphan symbols determined by the communication device are the same or different.
  • the processing unit is specifically configured to: for any group of orphan symbols in the at least one group of orphan symbols, according to the number of the group of orphan symbols and the number of symbols transmitted at one time And the threshold value to determine the usage mode of the group of orphan symbols in the time unit.
  • the transmission data includes first transmission data and second transmission data; and the processing unit is specifically configured to: determine the number of orphan symbols in the group of orphan symbols and the difference between the symbols of the one transmission If the ratio of the quantity is greater than the threshold value, it is determined that the usage mode is the first transmission data, and the first transmission data refers to: the amount of data transmitted by the group of orphan symbols and the symbols transmitted at one time The amount of transmitted data is the same; or, if it is determined that the ratio of the number of the group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold, then it is determined that the usage mode is the second transmission data , Or transmitting DMRS, or transmitting HARQ, or not performing transmission, the second transmission data means: the data transmitted by the group of orphan symbols is part of the data transmitted by the symbols of the one transmission.
  • the use mode is the first transmission data; the communication unit is specifically configured to use the first transmission power to perform data on the group of orphan symbols in the one time unit Transmitting, and using the second transmission power to perform data transmission on a symbol transmitted once in the one time unit, the first transmission power is greater than the second transmission power.
  • the device is a terminal device; the processing unit is further configured to:
  • the use of the group of orphan symbols is to transmit DMRS, and at least one orphan symbol in the group of orphan symbols is the closest to the at least one orphan symbol in the time unit.
  • the transmitted symbol corresponds.
  • the use of the group of orphan symbols is to transmit DMRS, and at least one orphan symbol in the group of orphan symbols corresponds to at least two symbols that are transmitted once on the time unit.
  • At least one orphan symbol in the set of orphan symbols and the symbol for one transmission corresponding to the at least one orphan symbol are continuous in time, and the at least one orphan symbol is in the first sequence.
  • the number of the group of orphan symbols is two or more
  • the use mode is the third transmission data
  • the third transmission data refers to: the group of orphan symbols
  • the symbols of different one-time transmissions respectively divided into the one time unit according to the equal division rule constitute a new one-time transmission symbol.
  • the device is a terminal device; the communication unit is also used to receive instruction information, and the instruction information is used to indicate the status of the at least one group of orphan symbols in the one time unit. How to use it.
  • the indication information is downlink control information DCI or high-layer signaling.
  • the device 1100 includes a processor 1102, a communication interface 1103, and a memory 1101.
  • the apparatus 1100 may further include a communication line 1104.
  • the communication interface 1103, the processor 1102, and the memory 1101 may be connected to each other through a communication line 1104;
  • the communication line 1104 may be a peripheral component interconnection standard (peripheral component interconnect, PCI for short) bus or an extended industry standard architecture (extended industry standard architecture) , Referred to as EISA) bus and so on.
  • the communication line 1104 can be divided into an address bus, a data bus, a control bus, and so on. For ease of representation, only one thick line is used to represent in FIG. 11, but it does not mean that there is only one bus or one type of bus.
  • the processor 1102 may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits used to control the execution of the program of the present application.
  • Communication interface 1103 using any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), Wired access network, etc.
  • RAN radio access network
  • WLAN wireless local area networks
  • Wired access network etc.
  • the memory 1101 may be ROM or other types of static storage devices that can store static information and instructions, RAM or other types of dynamic storage devices that can store information and instructions, or it can be an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory).
  • read-only memory EEPROM
  • compact disc read-only memory, CD-ROM
  • optical disc storage including compact discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.
  • magnetic disks A storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the memory can exist independently and is connected to the processor through a communication line 1104. The memory can also be integrated with the processor.
  • the memory 1101 is used to store computer-executable instructions for executing the solution of the present application, and the processor 1102 controls the execution.
  • the processor 1102 is configured to execute computer-executable instructions stored in the memory 1101, so as to implement the data transmission method provided in the foregoing embodiment of the present application.
  • the computer-executable instructions in the embodiments of the present application may also be referred to as application program code, which is not specifically limited in the embodiments of the present application.
  • At least one (piece, species) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or Multiple.
  • Multiple refers to two or more, and other measure words are similar.
  • "a device” means to one or more such devices.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • the various illustrative logic units and circuits described in the embodiments of this application can be implemented by general-purpose processors, digital signal processors, application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, Discrete gates or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the described functions.
  • the general-purpose processor may be a microprocessor, and optionally, the general-purpose processor may also be any traditional processor, controller, microcontroller, or state machine.
  • the processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration achieve.
  • the steps of the method or algorithm described in the embodiments of the present application can be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • the software unit can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other storage medium in the art.
  • the storage medium may be connected to the processor, so that the processor can read information from the storage medium, and can store and write information to the storage medium.
  • the storage medium may also be integrated into the processor.
  • the processor and the storage medium can be arranged in the ASIC.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.
  • the aforementioned functions described in this application can be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, these functions can be stored on a computer-readable medium, or transmitted on a computer-readable medium in the form of one or more instructions or codes.
  • Computer-readable media include computer storage media and communication media that facilitate the transfer of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special computer.
  • 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 program code media that can be read by general or special computers, or general or special processors.
  • any connection can be appropriately defined as a computer-readable medium, for example, if the software is from a website, server, or other remote source through a coaxial cable, fiber optic computer, twisted pair, or 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 said disks and discs include compressed disks, laser disks, optical discs, digital versatile discs (English: Digital Versatile Disc, abbreviated as: DVD), floppy disks and Blu-ray discs.
  • Disks usually copy data with magnetism.
  • Discs usually use lasers to copy data optically.
  • the combination of the above can also be contained in a computer readable medium.
  • the functions described in this application can be implemented by hardware, software, firmware or any combination thereof. When implemented by software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium.
  • the computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another.
  • the storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

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Abstract

Provided are a data transmission method and apparatus. The method comprises: a communication device determining a usage mode of at least one group of orphan symbols in a time unit, wherein the usage mode is one of transmitting data, transmitting a DMRS, transmitting an HARQ or not performing transmission; and the communication device performing data transmission on the time unit according to the usage mode, wherein determining the mode of a group of orphan symbols comprises: a network device notifying a terminal device of the mode of a group of orphan symbols, or the network device and the terminal device respectively determining the mode of a group of orphan symbols according to a magnitude relationship between the ratio of the number of symbols in a single transmission to the number of symbols in the group of orphan symbols and a threshold value. Based on the solution, on the premise that a time delay is not increased, or even that the time delay is reduced, the efficiency and the time delay are both taken into consideration, thereby realizing the reasonable usage of orphan symbols, solving the problem of a single transmission crossing two time units, and facilitating improvement of the communication efficiency.

Description

一种数据传输的方法及装置Method and device for data transmission
相关申请的交叉引用Cross references to related applications
本申请要求在2019年03月27日提交中国专利局、申请号为201910239701.3、申请名称为“一种数据传输的方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 201910239701.3, and the application title is "a method and device for data transmission" on March 27, 2019. The entire content of this application is incorporated by reference. in.
技术领域Technical field
本申请涉及移动通信技术领域，尤其涉及一种数据传输的方法及装置。This application relates to the field of mobile communication technology, and in particular to a method and device for data transmission.
背景技术Background technique
为了应对未来***性的移动数据流量增长、海量移动通信的设备连接、不断涌现的各类新业务和应用场景，第五代(the 5th generation，5G)移动通信***应运而生。In order to cope with the explosive growth of mobile data traffic in the future, the connection of massive mobile communication devices, and the emerging various new services and application scenarios, the fifth generation (5G) mobile communication system has emerged.
在一些应用场景中，业务对数据传输的可靠性要求较高，为满足业务的可靠性传输要求，目前给出的解决方案是：发送端将一次传输的数据进行重复发送，即多次传输相同的数据，从而可以提升接收端接收到该数据的成功率，其中，一次传输占用n个符号，n为大于1的整数。In some application scenarios, the business has high requirements for the reliability of data transmission. In order to meet the reliable transmission requirements of the business, the current solution is: the sender repeats the data transmitted once, that is, the same transmission is repeated multiple times. Therefore, the success rate of receiving the data can be improved. Among them, one transmission occupies n symbols, and n is an integer greater than 1.
基于上述方案，可能存在以下问题：由于存在多次传输，可能导致某次传输所占用的n个符号跨越两个时间单元，而目前协议是不允许一次传输跨越两个时间单元的，因此该问题需要得到很好的解决。Based on the above solution, there may be the following problems: due to multiple transmissions, the n symbols occupied by a certain transmission may span two time units. However, the current protocol does not allow one transmission to span two time units, so this problem Need to get a good solution.
发明内容Summary of the invention
本申请提供一种数据传输的方法及装置，用以解决一次传输跨越两个时间单元的问题，可以提升通信效率。The present application provides a method and device for data transmission to solve the problem of one transmission spanning two time units, which can improve communication efficiency.
第一方面，本申请提供一种数据传输的方法，该方法包括：通信设备确定一个时间单元中的至少一组孤儿符号的使用方式，所述使用方式为传输数据、传输解调参考信号DMRS、传输混合自动重传请求HARQ或不进行传输中的一种，一组孤儿符号为一组符号，所述一组符号的数量小于一次传输的符号的数量；所述通信设备根据所述使用方式，在所述一个时间单元上进行数据传输。基于该方案，在不增加时延，甚至是降低时延的前提下，兼顾了效率和时延，实现了孤儿符号的合理使用，解决了一次传输跨越两个时间单元的问题，有助于提升通信效率。In a first aspect, the present application provides a data transmission method. The method includes: a communication device determines a usage mode of at least one group of orphan symbols in a time unit, and the usage mode is data transmission, demodulation reference signal DMRS, Transmission Hybrid Automatic Repeat Request HARQ or non-transmission. A group of orphan symbols is a group of symbols, and the number of the group of symbols is less than the number of symbols transmitted at one time; the communication device according to the usage mode, Data transmission is performed on the one time unit. Based on this solution, without increasing or even reducing the delay, both efficiency and delay are taken into account, the rational use of orphan symbols is realized, the problem that a transmission spans two time units is solved, and it is helpful to improve Communication efficiency.
在一种可能的实现方法中，所述一个时间单元中存在至少两组孤儿符号时，所述通信设备确定的所述至少两组孤儿符号的使用方式相同或不同。In a possible implementation method, when there are at least two groups of orphan symbols in the one time unit, the use modes of the at least two groups of orphan symbols determined by the communication device are the same or different.
在一种可能的实现方法中，针对所述至少一组孤儿符号中的任意一组孤儿符号，所述通信设备根据所述一组孤儿符号的数量、一次传输的符号的数量和门限值，确定所述时间单元中的所述一组孤儿符号的使用方式。基于该方案，实现了灵活确定孤儿符号的使用方式。In a possible implementation method, for any group of orphan symbols in the at least one group of orphan symbols, the communication device according to the number of the group of orphan symbols, the number of symbols transmitted at one time, and the threshold value, Determine the usage mode of the group of orphan symbols in the time unit. Based on this scheme, the use of orphan symbols can be flexibly determined.
在一种可能的实现方法中，所述传输数据包括第一传输数据和第二传输数据；所述通信设备确定所述一组孤儿符号的数量与所述一次传输的符号的数量的比值大于所述门限值，则确定所述使用方式为所述第一传输数据，所述第一传输数据是指：所述一组孤儿符号传输的数据量与所述一次传输的符号传输的数据量相同；或者，所述通信设备确定所述一组孤儿符号的数量与所述一次传输的符号的数量的比值小于或等于所述门限值，则确定所述使用方式为所述第二传输数据、或传输DMRS、或传输HARQ、或不进行传输，所述第二传输数据是指：所述一组孤儿符号传输的数据为所述一次传输的符号传输的数据中的部分数据。基于该方案，可以确定孤儿符号的具体使用方式。In a possible implementation method, the transmission data includes first transmission data and second transmission data; the communication device determines that the ratio of the number of orphan symbols to the number of symbols transmitted at one time is greater than The threshold value, it is determined that the usage mode is the first transmission data, and the first transmission data refers to: the amount of data transmitted by the group of orphan symbols is the same as the amount of data transmitted by the symbols of the one transmission Or, the communication device determines that the ratio of the number of the group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold value, and then determines that the usage mode is the second transmission data, Either DMRS is transmitted, or HARQ is transmitted, or no transmission is performed. The second transmission data means that the data transmitted by the group of orphan symbols is part of the data transmitted by the symbols of the one transmission. Based on this scheme, the specific use of the orphan symbol can be determined.
在一种可能的实现方法中，所述使用方式为所述第一传输数据；所述通信设备使用第一传输功率在所述一个时间单元的所述一组孤儿符号上进行数据传输，以及使用所述第二传输功率在所述一个时间单元的一次传输的符号上进行数据传输，所述第一传输功率大于所述第二传输功率。基于该实现方式，有助于减少数据传输的误码率，进而有助于提升通信效率。In a possible implementation method, the use mode is the first transmission data; the communication device uses the first transmission power to perform data transmission on the set of orphan symbols in the one time unit, and uses The second transmission power performs data transmission on a symbol transmitted once in the one time unit, and the first transmission power is greater than the second transmission power. Based on this implementation method, it helps to reduce the bit error rate of data transmission, thereby helping to improve communication efficiency.
在一种可能的实现方法中，所述通信设备为终端设备；所述通信设备确定所述第二传输功率与预设固定提升值之和、允许本次数据传输的最大传输功率二者中的较小值，作为所述第一传输功率；或者，所述通信设备根据所述孤儿符号的数量和所述一次传输的符号确定提升值，并确定所述第二传输功率与所述提升值之和、允许本次数据传输的最大传输功率二者中的较小值，作为所述第一传输功率；或者，所述通信设备从网络设备预先配置的多个提升值中选择一个提升值，并确定所述第二传输功率与所述提升值之和、允许本次数据传输的最大传输功率二者中的较小值，作为所述第一传输功率；或者，所述通信设备从网络设备预先配置的多个传输功率中选择一个传输功率，并确定所述选择的传输功率、允许本次数据传输的最大传输功率二者中的较小值，作为所述第一传输功率；或者，所述通信设备接收所述网络设备通过信令通知的提升值，并确定所述第二传输功率与所述提升值之和、允许本次数据传输的最大传输功率二者中的较小值，作为所述第一传输功率。In a possible implementation method, the communication device is a terminal device; the communication device determines the sum of the second transmission power and a preset fixed boost value, and the maximum transmission power allowed for this data transmission. The smaller value is used as the first transmission power; or, the communication device determines a boost value according to the number of orphan symbols and the symbols of the one-time transmission, and determines the difference between the second transmission power and the boost value The smaller value of and the maximum transmission power allowed for this data transmission is used as the first transmission power; or, the communication device selects a boost value from a plurality of boost values pre-configured by the network device, and Determine the smaller value of the sum of the second transmission power and the boost value and the maximum transmission power allowed for this data transmission as the first transmission power; or, the communication device may obtain the first transmission power from the network device in advance. Select a transmission power among the multiple configured transmission powers, and determine the smaller value of the selected transmission power and the maximum transmission power allowed for this data transmission as the first transmission power; or The communication device receives the boost value notified by the network device through signaling, and determines the smaller of the sum of the second transmission power and the boost value, and the maximum transmission power allowed for this data transmission, as the value The first transmission power.
在一种可能的实现方法中，所述一组孤儿符号的使用方式为传输DMRS，所述一组孤儿符号中的至少一个孤儿符号与所述时间单元上距离所述至少一个孤儿符号最近的一次传输的符号对应。In a possible implementation method, the use of the group of orphan symbols is to transmit DMRS, and at least one orphan symbol in the group of orphan symbols is the closest to the at least one orphan symbol in the time unit. The transmitted symbol corresponds.
在一种可能的实现方法中，所述一组孤儿符号的使用方式为传输DMRS，所述一组孤儿符号中的至少一个孤儿符号与所述时间单元上的至少两个一次传输的符号对应。In a possible implementation method, the use of the group of orphan symbols is to transmit DMRS, and at least one orphan symbol in the group of orphan symbols corresponds to at least two symbols that are transmitted once on the time unit.
在一种可能的实现方法中，所述一组孤儿符号中的至少一个孤儿符号与所述至少一个孤儿符号对应的一次传输的符号在时间上连续，且所述至少一个孤儿符号时序在先。In a possible implementation method, at least one orphan symbol in the set of orphan symbols and the symbol for one transmission corresponding to the at least one orphan symbol are continuous in time, and the at least one orphan symbol is in the first sequence.
在一种可能的实现方法中，所述一组孤儿符号的数量为两个或两个以上，所述使用方式为第三传输数据，所述第三传输数据是指：所述一组孤儿符号按照均分准则分别划分至所述一个时间单元中的不同的一次传输的符号构成新的一次传输的符号。In a possible implementation method, the number of the group of orphan symbols is two or more, the use mode is the third transmission data, and the third transmission data refers to: the group of orphan symbols The symbols of different one-time transmissions respectively divided into the one time unit according to the equal division rule constitute a new one-time transmission symbol.
在一种可能的实现方法中，所述通信设备为终端设备、或网络设备。In a possible implementation method, the communication device is a terminal device or a network device.
在一种可能的实现方法中，所述通信设备为终端设备；所述通信设备还接收指示信息，所述指示信息用于指示所述一个时间单元中的所述至少一组孤儿符号的使用方式。In a possible implementation method, the communication device is a terminal device; the communication device also receives instruction information, and the instruction information is used to indicate the usage mode of the at least one group of orphan symbols in the one time unit .
在一种可能的实现方法中，所述指示信息为下行控制信息DCI或高层信令。In a possible implementation method, the indication information is downlink control information DCI or high-layer signaling.
第二方面，本申请提供一种数据传输的装置，该装置可以是通信设备(如终端设备、或网络设备)，还可以是用于通信设备的芯片。该装置具有实现上述第一方面的各实施例 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。In the second aspect, the present application provides a data transmission device. The device may be a communication device (such as a terminal device or a network device), or a chip for a communication device. This device has the function of realizing the various embodiments of the first aspect described above. This function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions.
第三方面，本申请提供一种数据传输的装置，包括：处理器和存储器；该存储器用于存储计算机执行指令，当该装置运行时，该处理器执行该存储器存储的该计算机执行指令，以使该装置执行如上述第一方面任意所述的方法。In a third aspect, the present application provides a data transmission device including: a processor and a memory; the memory is used to store computer execution instructions, and when the device is running, the processor executes the computer execution instructions stored in the memory to The device is caused to perform the method described in any of the above-mentioned first aspects.
第四方面，本申请提供一种数据传输的装置，包括：包括用于执行上述第一方面的各个步骤的单元或手段(means)。In a fourth aspect, the present application provides a data transmission device, including: including units or means for executing each step of the first aspect.
第五方面，本申请提供一种数据传输的装置，包括处理器和接口电路，所述处理器用于通过接口电路与其它装置通信，并执行上述第一方面任意所述的方法。该处理器包括一个或多个。In a fifth aspect, the present application provides a data transmission device, including a processor and an interface circuit, the processor is configured to communicate with other devices through the interface circuit, and execute any of the methods described in the first aspect. The processor includes one or more.
第六方面，本申请提供一种数据传输的装置，包括处理器，用于与存储器相连，用于调用所述存储器中存储的程序，以执行上述第一方面任意所述的方法。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。In a sixth aspect, the present application provides a data transmission device, including a processor, configured to be connected to a memory, and configured to call a program stored in the memory to execute any of the methods described in the first aspect. The memory can be located inside the device or outside the device. And the processor includes one or more.
第七方面，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得处理器执行上述第一方面任意所述的方法。In a seventh aspect, the present application also provides a computer-readable storage medium having instructions stored in the computer-readable storage medium, which when run on a computer, cause a processor to execute any of the methods described in the first aspect.
第八方面，本申请还提供一种包括指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面任意所述的方法。In an eighth aspect, the present application also provides a computer program product including instructions, which when run on a computer, cause the computer to execute any of the methods described in the first aspect.
第九方面，本申请还提供一种芯片***，包括：处理器，用于执行上述第一方面任意所述的方法。In a ninth aspect, this application also provides a chip system, including a processor, configured to execute any of the methods described in the first aspect.
附图说明Description of the drawings
图1为本申请提供的一种可能的网络架构示意图；Figure 1 is a schematic diagram of a possible network architecture provided by this application;
图2A为本申请提供的数据传输的一个示例图；Figure 2A is an example diagram of data transmission provided by this application;
图2B为本申请提供的数据传输的又一个示例图；Figure 2B is another example diagram of data transmission provided by this application;
图2C为本申请提供的数据传输的又一个示例图；Figure 2C is another example diagram of data transmission provided by this application;
图3为本申请提供的数据传输的又一个示例图；Figure 3 is another example diagram of data transmission provided by this application;
图4为本申请提供的一种数据传输的方法流程示意图；FIG. 4 is a schematic flowchart of a data transmission method provided by this application;
图5A为本申请提供的数据传输的又一个示例图；Fig. 5A is another example diagram of data transmission provided by this application;
图5B为本申请提供的数据传输的又一个示例图；FIG. 5B is another example diagram of data transmission provided by this application;
图6A为本申请提供的数据传输的又一个示例图；FIG. 6A is another example diagram of data transmission provided by this application;
图6B为本申请提供的数据传输的又一个示例图；Fig. 6B is another example diagram of data transmission provided by this application;
图7为本申请提供的数据传输的又一个示例图；FIG. 7 is another example diagram of data transmission provided by this application;
图8A为本申请提供的数据传输的又一个示例图；FIG. 8A is another example diagram of data transmission provided by this application;
图8B为本申请提供的数据传输的又一个示例图；FIG. 8B is another example diagram of data transmission provided by this application;
图8C为本申请提供的数据传输的又一个示例图；FIG. 8C is another example diagram of data transmission provided by this application;
图9A为本申请提供的数据传输的又一个示例图；FIG. 9A is another example diagram of data transmission provided by this application;
图9B为本申请提供的数据传输的又一个示例图；FIG. 9B is another example diagram of data transmission provided by this application;
图10为本申请提供的一种数据传输的装置示意图；FIG. 10 is a schematic diagram of a data transmission device provided by this application;
图11为本申请提供的又一种数据传输的装置示意图。FIG. 11 is a schematic diagram of another data transmission device provided by this application.
具体实施方式detailed description
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***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。In order to make the objectives, technical solutions, and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. The specific operation method in the method embodiment can also be applied to the device embodiment or the system embodiment. Wherein, in the description of the present application, unless otherwise specified, "multiple" means two or more.
如图1所示，为本申请所适用的一种可能的网络架构示意图，包括网络设备和至少一个终端设备。该网络设备和终端设备可以工作在新无线(new radio，NR)通信***上，终端设备可以通过NR通信***与网络设备通信。该网络设备和终端设备也可以在其它通信***上工作，本申请实施例不做限制。As shown in Fig. 1, a schematic diagram of a possible network architecture to which this application is applicable includes a network device and at least one terminal device. The network equipment and terminal equipment can work on a new radio (NR) communication system, and the terminal equipment can communicate with the network equipment through the NR communication system. The network equipment and terminal equipment can also work on other communication systems, and the embodiment of the present application does not limit it.
终端设备(user equipment，UE)可以是能够接收网络设备调度和指示信息的无线终端设备，无线终端设备可以是指向用户提供语音和/或数据连通性的设备，或具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端设备可以经无线接入网(如，radio access network，RAN)与一个或多个核心网或者互联网进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话，手机(mobile phone))、计算机和数据卡，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、平板电脑(Pad)、带无线收发功能的电脑等设备。无线终端设备也可以称为***、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile station，MS)、远程站(remote station)、接入点(access point，AP)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户站(subscriber station，SS)、用户端设备(customer premises equipment，CPE)、终端(terminal)、用户设备(user equipment，UE)、移动终端(mobile terminal，MT)等。无线终端设备也可以是可穿戴设备以及下一代通信***，例如，5G网络中的终端设备或者未来演进的公共陆地移动网络(public land mobile network，PLMN)网络中的终端设备，NR通信***中的终端设备等。A user equipment (UE) can be a wireless terminal device that can receive network equipment scheduling and instruction information. A wireless terminal device can be a device that provides voice and/or data connectivity to users, or a handheld device with wireless connection function , Or other processing equipment connected to the wireless modem. A wireless terminal device can communicate with one or more core networks or the Internet via a wireless access network (e.g., radio access network, RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone). , Mobile phones), computers, and data cards, for example, may be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablets Computer (Pad), computer with wireless transceiver function and other equipment. Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station (remote station), access point ( access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), subscriber station (subscriber station, SS), user terminal equipment (customer premises equipment, CPE), terminal (terminal), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc. Wireless terminal devices can also be wearable devices and next-generation communication systems, for example, terminal devices in a 5G network or terminal devices in a public land mobile network (PLMN) network that will evolve in the future, and in NR communication systems. Terminal equipment, etc.
网络设备是网络侧中一种用于发射或接收信号的实体，如新一代基站(generation Node B，gNodeB)。网络设备可以是用于与移动设备通信的设备。网络设备可以是无线局域网(wireless local area networks，WLAN)中的AP，全球移动通信***(global system for mobile communication，GSM)或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)中的基站(NodeB，NB)，还可以是长期演进(long term evolution，LTE)中的演进型基站(evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的公共陆地移动网络(public land mobile network，PLMN)网络中的网络设备，或NR***中的gNodeB等。另外，在本申请实施例中，网络设备为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信，该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供 高速率的数据传输服务。此外，在其它可能的情况下，网络设备可以是其它为终端设备提供无线通信功能的装置。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。为方便描述，本申请实施例中，为终端设备提供无线通信功能的装置称为网络设备。A network device is an entity used to transmit or receive signals on the network side, such as a generation NodeB (gNodeB). The network device may be a device used to communicate with mobile devices. The network equipment can be an AP in a wireless local area network (WLAN), a base transceiver in a global system for mobile communication (GSM) or a code division multiple access (CDMA). station, BTS), it can also be a base station (NodeB, NB) in wideband code division multiple access (WCDMA), or an evolutional base station (evolutional base station) in long-term evolution (LTE) Node B, eNB or eNodeB), or relay station or access point, or in-vehicle equipment, wearable equipment, and network equipment in the future 5G network or the network in the future evolved public land mobile network (PLMN) network Equipment, or gNodeB in the NR system, etc. In addition, in the embodiments of the present application, the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell. The cell may be a network equipment. (E.g. base station) The corresponding cell, the cell can belong to a macro base station or a base station corresponding to a small cell. The small cell here can include: Metro cell, Micro cell, and Pico cell (Pico cell), femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services. In addition, in other possible situations, the network device may be another device that provides wireless communication functions for the terminal device. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device. For ease of description, in the embodiments of the present application, a device that provides a wireless communication function for a terminal device is called a network device.
为便于理解本申请方案，在介绍本申请方案之前，首先介绍一些通信术语。需要说明的是，以下通信术语也作为本发明的一部分。To facilitate the understanding of the solution of this application, before introducing the solution of this application, first introduce some communication terms. It should be noted that the following communication terms are also part of the present invention.
一、移动通信***定义的三大类应用场景1. Three types of application scenarios defined by mobile communication systems
移动通信技术已经深刻地改变了人们的生活，但人们对更高性能的移动通信技术的追求从未停止。为了应对未来***性的移动数据流量增长、海量移动通信的设备连接、不断涌现的各类新业务和应用场景，5G移动通信***应运而生。国际电信联盟(International Telecommunication Union，ITU)为5G以及未来的移动通信***定义了三大类应用场景：增强型移动宽带(Enhanced Mobile Broadband，eMBB)、高可靠低时延通信(Ultra Reliable and Low Latency Communications，URLLC)以及海量机器类通信(Massive Machine-Type Communications，mMTC)。Mobile communication technology has profoundly changed people's lives, but people's pursuit of higher performance mobile communication technology has never stopped. In order to cope with the explosive growth of mobile data traffic in the future, the connection of massive mobile communication devices, and the emergence of various new services and application scenarios, 5G mobile communication systems have emerged. The International Telecommunication Union (International Telecommunication Union, ITU) defines three types of application scenarios for 5G and future mobile communication systems: Enhanced Mobile Broadband (eMBB), Ultra Reliable and Low Latency Communications, URLLC) and Massive Machine-Type Communications (mMTC).
典型的eMBB业务有：超高清视频、增强现实(augmented reality，AR)、虚拟现实(virtual reality，VR)等，这些业务的主要特点是传输数据量大、传输速率很高。Typical eMBB services include: ultra-high-definition video, augmented reality (AR), virtual reality (VR), etc. The main characteristics of these services are large transmission data volume and high transmission rate.
典型的URLLC业务有：工业制造或生产流程中的无线控制、无人驾驶汽车和无人驾驶飞机的运动控制以及远程修理、远程手术等触觉交互类应用，这些业务的主要特点是要求超高可靠性、低延时，传输数据量较少以及具有突发性。Typical URLLC services include: wireless control in industrial manufacturing or production processes, motion control of unmanned vehicles and unmanned aircraft, and tactile interaction applications such as remote repair and remote surgery. The main feature of these services is that they require ultra-high reliability. Features, low latency, less data transmission and bursting.
典型的mMTC业务有：智能电网配电自动化、智慧城市等，主要特点是联网设备数量巨大、传输数据量较小、数据对传输时延不敏感，这些mMTC终端需要满足低成本和非常长的待机时间的需求。Typical mMTC services include: smart grid power distribution automation, smart cities, etc. The main features are a huge number of networked devices, a small amount of transmitted data, and data insensitive to transmission delays. These mMTC terminals need to meet low cost and very long standby The need for time.
不同业务对移动通信***的需求不同，如何更好地同时支持多种不同业务的数据传输需求，是当前5G移动通信***所需要解决的技术问题。例如，如何同时支持URLLC业务和eMBB业务就是当前5G移动通信***的讨论热点之一。Different services have different requirements for mobile communication systems. How to better support the data transmission requirements of multiple different services at the same time is a technical problem that the current 5G mobile communication system needs to solve. For example, how to support URLLC service and eMBB service at the same time is one of the hot topics of discussion in the current 5G mobile communication system.
本申请主要针对的是对数据传输的可靠性要求较高的业务类型，如上述三大类场景中的URLLC业务。当然，如果其他业务类型，如eMBB或mMTC对业数据传输的可靠性也有高要求，则本申请方法也适用。This application is mainly aimed at service types that require high reliability of data transmission, such as URLLC services in the above three types of scenarios. Of course, if other service types, such as eMBB or mMTC, also have high requirements on the reliability of industry data transmission, the method of this application is also applicable.
二、时间单元2. Time unit
时间单元是最小的时间调度单元。在长期演进(long term evolution，LTE)***中，最小的时间调度单元为一个1ms时间长度的传输时间间隔(transmission time interval，TTI)。The time unit is the smallest time scheduling unit. In a long term evolution (LTE) system, the smallest time scheduling unit is a transmission time interval (TTI) with a length of 1 ms.
为了满足URLLC业务的传输时延需求，无线空口的数据传输可以使用更短的时间调度单元，例如，使用迷你时隙(mini-slot)或更大的子载波间隔的时隙作为最小的时间调度单元。其中，一个mini-slot包括一个或多个时域符号，这里的时域符号可以是正交频分复用(orthogonal frequency division multiplexing，OFDM)符号。对于子载波间隔为15千赫兹(kilohertz，kHz)的一个时隙，包括6个或7个时域符号，对应的时间长度为0.5ms；对于子载波间隔为60kHz的一个时隙，对应的时间长度则缩短为0.125ms。In order to meet the transmission delay requirements of the URLLC service, the data transmission of the wireless air interface can use a shorter time scheduling unit, for example, a mini-slot or a time slot with a larger subcarrier interval as the minimum time scheduling unit. Among them, a mini-slot includes one or more time-domain symbols, where the time-domain symbols may be orthogonal frequency division multiplexing (OFDM) symbols. For a slot with a subcarrier spacing of 15 kilohertz (kilohertz, kHz), including 6 or 7 time domain symbols, the corresponding time length is 0.5ms; for a slot with a subcarrier spacing of 60kHz, the corresponding time The length is shortened to 0.125ms.
mini-slot是NR中新引入的概念，如果RAN设备调度的数据符号长度小于LTE的slot，则这个长度的数据就被称为mini-slot，mini-slot时间占用更短，更适合传输有低时延要求的数据。Mini-slot is a newly introduced concept in NR. If the length of the data symbol scheduled by the RAN device is less than the LTE slot, the data of this length is called a mini-slot. The mini-slot takes a shorter time and is more suitable for low transmission. Data required by the time delay.
本申请中，对于一个时间单元对应的时间长度不限定，也即对于一个时间单元包括的符号数是不限定的。比如，一个时间单元可以是一个LTE的slot，则一个时间单元包括14个OFDM符号。再比如，一个时间单元是一个NR mini-slot，且该mini-slot包括7个OFDM符号，等等。In this application, the time length corresponding to a time unit is not limited, that is, the number of symbols included in a time unit is not limited. For example, a time unit may be an LTE slot, and a time unit includes 14 OFDM symbols. For another example, a time unit is an NR mini-slot, and the mini-slot includes 7 OFDM symbols, and so on.
三、一次传输的符号和孤儿(orphan)符号Three, a transmission symbol and orphan symbol
本申请中，一次传输的符号指的是用于一次数据传输所占用的符号。In this application, the symbol for one transmission refers to the symbol occupied for one data transmission.
一组孤儿符号是一组符号，其包括一个或多个符号。一组孤儿符号的数量小于一次传输的符号的数量。或者理解为，由于某次传输的n个符号中的第k个符号碰到了时隙的边界，而导致一次传输的n个符号被孤立开，则前k个符号和后n-k个符号分别称为一组孤儿符号，即该一次传输的n个符号中的前k个符号是一组孤儿符号，该一次传输的n个符号中的后n-k个符号是一组孤儿符号。A group of orphan symbols is a group of symbols, which includes one or more symbols. The number of orphan symbols in a group is less than the number of symbols transmitted at one time. Or it can be understood that because the kth symbol of the n symbols of a certain transmission hits the boundary of the time slot, and the n symbols of a transmission are isolated, the first k symbols and the last nk symbols are called respectively A group of orphan symbols, that is, the first k symbols of the n symbols transmitted at one time are a group of orphan symbols, and the last nk symbols of the n symbols transmitted at one time are a group of orphan symbols.
比如，参考图2A，为数据传输的一个示例图。为了保证数据传输的可靠性，同样的数据需要重复传输多次，图2A中以重复传输6次为例，这6次传输的数据是相同的。并且图2A是以每次数据传输占用3个符号为例，即一次传输占用的符号的数量为3。For example, refer to Figure 2A, which is an example diagram of data transmission. In order to ensure the reliability of data transmission, the same data needs to be repeatedly transmitted multiple times. In FIG. 2A, 6 repeated transmissions are taken as an example, and the data transmitted for these 6 times are the same. And FIG. 2A takes 3 symbols occupied by each data transmission as an example, that is, the number of symbols occupied by one transmission is 3.
从图2A中可以看出，第一次传输占用时间单元L的符号3-5，第二次传输占用的时间单元L的符号6-8，第三次传输占用的时间单元L的符号9-11，第四次传输占用的时间单元L的符号12-13和时间单元L+1的符号0，第五次传输占用的时间单元L+1的符号1-3，第六次传输占用的时间单元L+1的符号4-6。其中，图2A是以一个时间单元占用14个符号为例进行说明的。It can be seen from Fig. 2A that the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 11. Symbols 12-13 of time unit L and symbol 0 of time unit L+1 occupied by the fourth transmission, symbols 1-3 of time unit L+1 occupied by the fifth transmission, and time occupied by the sixth transmission Symbol 4-6 for unit L+1. Among them, FIG. 2A is described by taking 14 symbols occupied by one time unit as an example.
其中，重复传输的次数(如图2A示例中的重复传输的次数为6)以及一次传输的持续时间(即一次传输的符号的数量，如图2A示例的一次传输的符号的数量为3)可以是由网络设备通知的。作为一种实现方法，网络设备可以向终端设备通知：重复传输的次数、时域位置和第一次传输的持续时间(即一次传输占用的符号数)、调制与编码策略(modulation and coding scheme，MCS)等，然后终端设备可以根据预先约定的规则，确定后续每次传输的持续时间、时域位置及MCS。Among them, the number of repeated transmissions (the number of repeated transmissions in the example shown in Figure 2A is 6) and the duration of one transmission (that is, the number of symbols transmitted at one time, the number of symbols transmitted at one time in the example shown in Figure 2A is 3) can be It is notified by the network device. As an implementation method, the network device can notify the terminal device: the number of repeated transmissions, the time domain location and the duration of the first transmission (that is, the number of symbols occupied by one transmission), the modulation and coding scheme, MCS) and so on, and then the terminal device can determine the duration, time domain location and MCS of each subsequent transmission according to the pre-agreed rules.
从图2A中可以看出，第四次传输碰到了时间单元的边界(或者理解为跨越了两个时间单元)，即第四次传输的前2个符号位于时间单元L，后1个符号位于时间单元L+1，因此第四次传输使用的符号即为一组孤儿符号。具体的，时间单元L的符号12和13称为时间单元L的一组孤儿符号，时间单元L+1的符号0称为时间单元L+1的一组孤儿符号。It can be seen from Figure 2A that the fourth transmission has encountered the time unit boundary (or understood as crossing two time units), that is, the first 2 symbols of the fourth transmission are located in the time unit L, and the last symbol is located in the time unit L. The time unit is L+1, so the symbols used in the fourth transmission are a group of orphan symbols. Specifically, the symbols 12 and 13 of the time unit L are called a group of orphan symbols of the time unit L, and the symbol 0 of the time unit L+1 is called a group of orphan symbols of the time unit L+1.
目前协议规定：一次传输不可以跨越时间单元的边界，即一次传输不能跨越两个时间单元。也即，上述图2A所示的数据传输方式不被允许的。因此需要针对图2A中的数据传输方式进行重新设计。The current agreement stipulates that a transmission cannot cross the boundary of a time unit, that is, a transmission cannot cross two time units. That is, the data transmission method shown in FIG. 2A is not allowed. Therefore, it is necessary to redesign the data transmission mode in FIG. 2A.
与图2A所示的情形类似的，在另外一个场景中，也会出现孤儿符号的问题。如图3所示，为本申请提供的数据传输的又一个示例图，该图是以上行传输为例，时分双工(Time Division Duplexing，TDD)场景中的上下行转换点处也可能出现孤儿符号。参考图3，时隙格式(slot format)为DDFUUUUDDFUUUU，其中D表示用于下行传输，U表示用于上行传输。与图2A的示例类似，也是共有6次传输，网络设备通知终端设备一次传输持续3个符号。若规定一次传输必须是连续的符号，可以看出第二次传输本来是占用时隙L的符号5-7，但由于符号7用于下行传输，因此不能被使用；第四次传输由于碰到时隙边界，因此实际占用时隙L的符号12-13；第六次传输本来是占用时隙L+1的符号5-7，但由 于符号7用于下行传输，因此不能被使用。因此，针对图3示例，会出现第二次、第四次、第六次传输实际只占用2个符号，而不是网络设备通知的3个符号。因此，图3示例中的时隙L的符号5和6，时隙L中的符号12和13，时隙L+1中的符号5和6均为一组孤儿符号。Similar to the situation shown in Figure 2A, in another scenario, the problem of orphan symbols may also occur. As shown in Figure 3, another example diagram of data transmission provided for this application. This figure is an example of uplink transmission. Orphans may also appear at the uplink and downlink transition points in the Time Division Duplexing (TDD) scenario. symbol. Referring to FIG. 3, the slot format is DDFUUUUDDFUUUU, where D represents for downlink transmission, and U represents for uplink transmission. Similar to the example in FIG. 2A, there are 6 transmissions in total, and the network device notifies the terminal device that one transmission lasts for 3 symbols. If it is stipulated that a transmission must be consecutive symbols, it can be seen that the second transmission originally occupied symbols 5-7 of slot L, but because symbol 7 is used for downlink transmission, it cannot be used; the fourth transmission is due to The time slot boundary, therefore, actually occupy the symbols 12-13 of the time slot L; the sixth transmission originally occupied the symbols 5-7 of the time slot L+1, but because the symbol 7 is used for downlink transmission, it cannot be used. Therefore, for the example in Figure 3, the second, fourth, and sixth transmissions actually occupy only 2 symbols instead of the 3 symbols notified by the network device. Therefore, the symbols 5 and 6 of the time slot L in the example of FIG. 3, the symbols 12 and 13 in the time slot L, and the symbols 5 and 6 in the time slot L+1 are all a group of orphan symbols.
针对图2A所示的示例中存在的孤儿符号的问题，第一种可能的解决方案是：直接将时间单元尾部的一组孤儿符号归并前一次的一次传输的符号中，以构成新的一次传输的符号，而对于时间单元头部的一组孤儿符号，则是归并至后一次的一次传输的符号中，以构成新的一次传输的符号(参考图2B的示例)；第二种可能的解决方案是：直接将时间单元尾部的一组孤儿符号归并前一次的一次传输的符号中，以构成新的一次传输的符号，而对于时间单元头部的一组孤儿符号，则是将该时间单元重新按照一次传输的符号的数量进行设计(参考图2C的示例)。Regarding the problem of orphan symbols in the example shown in Figure 2A, the first possible solution is to directly merge a group of orphan symbols at the end of the time unit into the symbols of the previous transmission to form a new transmission. For a group of orphan symbols at the head of the time unit, they are merged into the symbols of the next transmission to form a new transmission symbol (refer to the example in Figure 2B); the second possible solution The solution is: directly merge a group of orphan symbols at the end of the time unit into the symbols of the previous transmission to form a new transmission symbol, and for a group of orphan symbols at the head of the time unit, the time unit Re-design according to the number of symbols transmitted at one time (refer to the example in Figure 2C).
针对图3，也可以有类似的解决方案。下面以图2A所示的示例为例进行说明。For Figure 3, a similar solution is also possible. The following takes the example shown in FIG. 2A as an example for description.
以图2A为例，根据上述第一种解决方案，得到图2B所示的结果，即将时间单元L的一组孤儿符号12-13归并至时间单元L的符号9-11构成第三次传输(占用5个符号)，将时间单元L+1的一组孤儿符号0归并至时间单元L+1的符号1-3构成第四次传输(占用4个符号)。因此，重新设计的结果为：第一次传输占用时间单元L的符号3-5，第二次传输占用的时间单元L的符号6-8，第三次传输占用的时间单元L的符号9-13，第四次传输占用的时间单元L+1的符号0-3，第五次传输占用的时间单元L+1的符号4-6，第六次传输占用的时间单元L+1的符号7-9。Taking Figure 2A as an example, according to the first solution described above, the result shown in Figure 2B is obtained, that is, a group of orphan symbols 12-13 of time unit L are merged into symbols 9-11 of time unit L to form the third transmission ( Occupy 5 symbols), and merge a group of orphan symbols 0 of time unit L+1 to symbols 1-3 of time unit L+1 to form the fourth transmission (occupies 4 symbols). Therefore, the result of the redesign is: the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 13. Symbols 0-3 of the time unit L+1 occupied by the fourth transmission, symbols 4-6 of the time unit L+1 occupied by the fifth transmission, symbols 7 of the time unit L+1 occupied by the sixth transmission -9.
以图2A为例，根据上述第二种解决方案，得到图2C所示的结果，即将时间单元L的一组孤儿符号12-13归并至时间单元L的符号9-11构成第三次传输(占用5个符号)，将时间单元L+1重新按照一次传输的符号的数量进行设计。因此，重新设计的结果为：第一次传输占用时间单元L的符号3-5，第二次传输占用的时间单元L的符号6-8，第三次传输占用的时间单元L的符号9-13，第四次传输占用的时间单元L+1的符号0-2，第五次传输占用的时间单元L+1的符号3-5，第六次传输占用的时间单元L+1的符号6-8。Taking Fig. 2A as an example, according to the above-mentioned second solution, the result shown in Fig. 2C is obtained, that is, a group of orphan symbols 12-13 of time unit L are merged into symbols 9-11 of time unit L to form the third transmission ( Occupy 5 symbols), and redesign the time unit L+1 according to the number of symbols transmitted at one time. Therefore, the result of the redesign is: the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 13. Symbols 0-2 of the time unit L+1 occupied by the fourth transmission, symbols 3-5 of the time unit L+1 occupied by the fifth transmission, symbols 6 of the time unit L+1 occupied by the sixth transmission -8.
针对上述第一种解决方案或第二种解决方案，均存在以下问题：某些次传输(如图2B中的第三次传输、图2C中的第三次传输和第四次传输)比其他次传输占用更多的时间资源，这将导致较大的资源冗余，即增加时延。并且，由于将孤儿符号并入其他次传输中，因此后续还要再增加一次传输(如图2B的第六次传输)或增加部分符号(如图2C中的时间单元L+1的符号7-8)来保证总的传输次数，这会进一步增加时延。Regarding the above-mentioned first solution or the second solution, there are the following problems: some transmissions (the third transmission in Figure 2B, the third transmission and the fourth transmission in Figure 2C) are better than others The second transmission occupies more time resources, which will lead to greater resource redundancy, that is, increased delay. Moreover, because the orphan symbol is incorporated into other transmissions, another transmission (the sixth transmission as shown in Figure 2B) or some symbols (as shown in the symbol 7- of time unit L+1 in Figure 2C) will be added later. 8) To ensure the total number of transmissions, this will further increase the delay.
综上所述，上述解决方案还不是很合适，为此，基于图1所示的架构，如图4所示，本申请提供一种数据传输的方法，该方法可用于解决背景技术中提到的现有技术所存在的问题，并且本申请方法还可以解决上述提到的两种可能的解决方案所存在的增加时延的问题，即本申请方法可以实现在兼顾效率和时延的前提下，更好的使用孤儿符号。该方法可用于下行方向或上行方法的数据传输。In summary, the above solution is not very suitable. For this reason, based on the architecture shown in FIG. 1, as shown in FIG. 4, this application provides a data transmission method that can be used to solve the problem mentioned in the background art. The problems in the prior art, and the method of this application can also solve the problem of increasing delay in the two possible solutions mentioned above, that is, the method of this application can achieve both efficiency and time delay , Better use the orphan symbol. This method can be used for data transmission in the downlink or uplink direction.
需要说明的是，本申请中的通信设备是终端设备和网络设备的总称，即通信设备既可以是终端设备，也可以是网络设备。It should be noted that the communication equipment in this application is a general term for terminal equipment and network equipment, that is, the communication equipment can be either a terminal equipment or a network equipment.
图4所示的方法包括以下步骤：The method shown in Figure 4 includes the following steps:
步骤401，终端设备确定一个时间单元中的至少一组孤儿符号的使用方式，使用方式为传输数据、传输解调参考信号(Demodulation Reference Signal，DMRS)、传输混合自动 重传请求(Hybrid automatic repeat request，HARQ)、不进行传输中的一种。Step 401: The terminal device determines the usage mode of at least one group of orphan symbols in a time unit, and the usage mode is transmission data, transmission demodulation reference signal (Demodulation Reference Signal, DMRS), transmission hybrid automatic repeat request (Hybrid automatic repeat request) , HARQ), one of not transmitting.
步骤402，网络设备确定一个时间单元中的至少一组孤儿符号的使用方式，使用方式为传输数据、传输DMRS、传输HARQ、不进行传输中的一种。Step 402: The network device determines a usage mode of at least one group of orphan symbols in a time unit, and the usage mode is one of data transmission, DMRS transmission, HARQ transmission, and no transmission.
需要说明的是，当一个时间单元中存在至少两组孤儿符号时，则终端设备和网络设备均确定该至少两组孤儿符号的使用方式相同，或者还可以是终端设备和网络设备均确定该至少两组孤儿符号的使用方式不同。It should be noted that when there are at least two sets of orphan symbols in a time unit, both the terminal device and the network device determine that the use of the at least two sets of orphan symbols is the same, or it is also possible that both the terminal device and the network device determine the at least two sets of orphan symbols. The two groups of orphan symbols are used in different ways.
步骤403，网络设备和终端设备根据该使用方式，在该一个时间单元上进行数据传输。Step 403: The network device and the terminal device perform data transmission on the one time unit according to the usage mode.
若图4所示的方法用于下行方向的数据传输，则该步骤403可以理解为：网络设备根据该使用方式在该时间单元上向终端设备发送数据，终端设备根据该使用方式在该时间单元上从网络设备接收数据。If the method shown in FIG. 4 is used for data transmission in the downlink direction, step 403 can be understood as: the network device sends data to the terminal device in the time unit according to the usage mode, and the terminal device transmits data in the time unit according to the usage mode. Receive data from network devices on the network.
若图4所示的方法用于上行方向的数据传输，则该步骤403可以理解为：终端设备根据该使用方式在该时间单元上向网络设备发送数据，网络设备根据该使用方式在该时间单元上从终端设备接收数据。If the method shown in FIG. 4 is used for data transmission in the uplink direction, step 403 can be understood as: the terminal device sends data to the network device in the time unit according to the usage mode, and the network device transmits data in the time unit according to the usage mode. On receiving data from the terminal device.
需要说明的是，上述步骤401和步骤402之间没有严格的先后顺序。可以是先执行步骤401再执行步骤402，或者是先执行步骤402再执行步骤401，或者是同时执行。It should be noted that there is no strict sequence between step 401 and step 402. Step 401 may be executed first and then step 402 may be executed, or step 402 may be executed first and then step 401 may be executed, or simultaneously.
通过上述步骤401和步骤402，终端设备和网络设备基于同样的规则，确定一个时间单元中的至少一组孤儿符号的使用方式，且终端设备和网络设备确定的一个时间单元中的至少一组孤儿符号的使用方式是相同的。比如，终端设备和网络设备均确定至少一组孤儿符号的使用方式为传输数据，或者均确定至少一组孤儿符号的使用方式为传输DMRS，或者均确定至少一组孤儿符号的使用方式为不进行传输，或者均确定至少一组孤儿符号的使用方式为传输HARQ。Through the above steps 401 and 402, the terminal device and the network device determine the use mode of at least one group of orphan symbols in a time unit based on the same rule, and the terminal device and the network device determine the at least one group of orphan symbols in a time unit The way the symbols are used is the same. For example, both the terminal equipment and the network equipment determine that the use mode of at least one set of orphan symbols is to transmit data, or both determine the use mode of at least one set of orphan symbols to transmit DMRS, or both determine that the use mode of at least one set of orphan symbols is not performed. Transmission, or it is determined that at least one group of orphan symbols is used to transmit HARQ.
需要说明的是，本申请中，对于使用方式为传输数据，还可以进一步分为三种传输数据的使用方式，分别称为第一方式传输数据、第二方式传输数据和第三方式传输数据，或者也可以称为第一传输数据方式、第二传输数据方式和第三传输数据方式，或者还可以称为第一传输数据、第二传输数据和第三传输数据，或者还可以称为速率匹配(rate matching)方式、截短(puncturing)方式或尽量均分方式。It should be noted that in this application, for the use of data transmission, it can be further divided into three data transmission methods, which are respectively referred to as the first method of data transmission, the second method of data transmission, and the third method of data transmission. Or it can be called the first data transmission method, the second data transmission method, and the third data transmission method, or it can also be called the first transmission data, the second transmission data, and the third transmission data, or it can also be called rate matching. (rate matching) method, puncturing method or try to divide the method equally.
因此，一组孤儿符号共有以下六种使用方式，下面分别说明。Therefore, a group of orphan symbols has the following six ways of using them, which are explained separately below.
使用方式一、第一方式传输数据(速率匹配(rate matching)方式)Use method 1: The first method to transmit data (rate matching (rate matching) method)
第一方式传输数据是指：一组孤儿符号传输的数据量与一次传输的符号传输的数据量相同。这里的数据量指的是编码之前的原始数据量，即由高层发送给物理层待传输的信息数据量。The first way to transmit data means that the amount of data transmitted by a group of orphan symbols is the same as the amount of data transmitted by symbols in one transmission. The amount of data here refers to the amount of original data before encoding, that is, the amount of information data to be transmitted from the higher layer to the physical layer.
由于一组孤儿符号的数量小于一次传输的符号的数量，因此一组孤儿符号的编码消息大于一次传输的编码效率。Since the number of a group of orphan symbols is less than the number of symbols transmitted at one time, the coding efficiency of a group of orphan symbols is greater than the coding efficiency of one transmission.
作为一种实现方法，可以根据一次传输的符号的编码效率、一组孤儿符号的数量及一次传输的符号的数量，确定一组孤儿符号的编码效率。As an implementation method, the coding efficiency of a group of orphan symbols can be determined according to the coding efficiency of the symbols transmitted at one time, the number of a group of orphan symbols, and the number of symbols transmitted at one time.
作为又一种实现方法，还可以根据一次传输的符号的编码效率、一组孤儿符号中可用时频资源的数量及一次传输的符号中可用时频资源的数量，确定一组孤儿符号的编码效率。As yet another implementation method, the coding efficiency of a set of orphan symbols can also be determined according to the coding efficiency of a set of orphan symbols, the number of available time-frequency resources in a set of orphan symbols, and the number of available time-frequency resources in a set of symbols transmitted at one time. .
以图2A的时间单元L的一组孤儿符号12-13为例，若采用该方式，则可以将时间单元L的一组孤儿符号12-13单独构成一次传输，该次传输的数据量与其他次传输的数据量相同。Take the group of orphan symbols 12-13 of the time unit L in Fig. 2A as an example. If this method is adopted, a group of orphan symbols 12-13 of the time unit L can be separately constituted for one transmission. The amount of data transferred at one time is the same.
基于该方式，具体实现中，至少可以有两种不同的解决方案。第一种可能的解决方案是：将时间单元尾部的一组孤儿符号单独作为新的一次传输的符号，将时间单元头部的一组孤儿符号也单独作为新的一次传输的符号(参考图5A的示例)；第二种可能的解决方案是：将时间单元尾部的一组孤儿符号单独作为新的一次传输的符号，而对于时间单元头部的一组孤儿符号，则是将该时间单元重新按照一次传输的符号的数量进行设计(参考图5B的示例)。Based on this approach, there can be at least two different solutions in specific implementation. The first possible solution is to use the group of orphan symbols at the end of the time unit as a new transmission symbol, and the group of orphan symbols at the head of the time unit as a new transmission symbol (refer to Figure 5A). Example); the second possible solution is to use the group of orphan symbols at the end of the time unit as a new transmission symbol, and for the group of orphan symbols at the head of the time unit, the time unit is re- Design according to the number of symbols to be transmitted at one time (refer to the example in Figure 5B).
需要说明的是，这里的两个时间单元可以是同一个时间单元，也可以是不同的时间单元，本申请后续实施例均以该两个时间单元是不同的时间单元为例进行说明。对于该两个时间单元同一个时间单元的情形，可以类似处理，不再赘述。It should be noted that the two time units here may be the same time unit or different time units. Subsequent embodiments of the present application all use different time units as an example for description. For the case where the two time units are the same time unit, similar processing can be performed, and details are not repeated here.
以图2A为例，基于该第一方式传输数据，根据上述第一种解决方案，可以得到如图5A所示的结果，即将时间单元L的一组孤儿符号12-13单独作为新的一次传输(占用2个符号)，将时间单元L+1的一组孤儿符号0单独作为新的一次传输(占用1个符号)。因此，重新设计的结果为：第一次传输占用时间单元L的符号3-5，第二次传输占用的时间单元L的符号6-8，第三次传输占用的时间单元L的符号9-11，第四次传输占用的时间单元L的符号12-13，第五次传输占用的时间单元L+1的符号0，第六次传输占用的时间单元L+1的符号1-3。其中，这6次重复传输所传输的数据是相同，或者说传输的数据量是相同的。可以看出，基于该实现方式，6次重复传输共占用15个符号，而图2B共占用21个符号，图2C共占用20个符号，因此该方式减少了符号使用数，即减少了时延。Taking Figure 2A as an example, based on the first method of transmitting data, according to the first solution described above, the result shown in Figure 5A can be obtained, that is, a group of orphan symbols 12-13 of the time unit L is used as a new transmission. (Occupies 2 symbols), the group of orphan symbols 0 of the time unit L+1 is used as a new transmission alone (occupies 1 symbol). Therefore, the result of the redesign is: the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 11. The symbols 12-13 of the time unit L occupied by the fourth transmission, the symbols 0 of the time unit L+1 occupied by the fifth transmission, and the symbols 1-3 of the time unit L+1 occupied by the sixth transmission. Among them, the data transmitted by these 6 repeated transmissions are the same, or the amount of data transmitted is the same. It can be seen that based on this implementation, 6 repeated transmissions occupy a total of 15 symbols, while Figure 2B occupies a total of 21 symbols, and Figure 2C occupies a total of 20 symbols, so this method reduces the number of symbols used, that is, reduces the delay .
以图2A为例，基于该第一方式传输数据，根据上述第二种解决方案，可以得到如图5B所示的结果，即将时间单元L的一组孤儿符号12-13单独作为新的一次传输(占用2个符号)，将时间单元L+1的符号重新按照一次传输的符号的数量进行设计。因此，重新设计的结果为：第一次传输占用时间单元L的符号3-5，第二次传输占用的时间单元L的符号6-8，第三次传输占用的时间单元L的符号9-11，第四次传输占用的时间单元L的符号12-13，第五次传输占用的时间单元L+1的符号0-2，第六次传输占用的时间单元L+1的符号3-5。其中，这6次重复传输所传输的数据是相同，或者说传输的数据量是相同的。可以看出，基于该实现方式，6次重复传输共占用17个符号，而图2B共占用21个符号，图2C共占用20个符号，因此该方式减少了符号使用数，即减少了时延。Taking Figure 2A as an example, based on the first method of transmitting data, according to the second solution described above, the result shown in Figure 5B can be obtained, that is, a group of orphan symbols 12-13 of the time unit L is used as a new transmission. (Occupy 2 symbols), redesign the symbols of the time unit L+1 according to the number of symbols transmitted at one time. Therefore, the result of the redesign is: the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 11. Symbols 12-13 of time unit L occupied by the fourth transmission, symbols 0-2 of time unit L+1 occupied by the fifth transmission, symbols 3-5 of time unit L+1 occupied by the sixth transmission . Among them, the data transmitted by these 6 repeated transmissions are the same, or the amount of data transmitted is the same. It can be seen that based on this implementation, 6 repeated transmissions occupy a total of 17 symbols, while Figure 2B occupies a total of 21 symbols, and Figure 2C occupies a total of 20 symbols. Therefore, this method reduces the number of symbols used, that is, reduces the delay. .
综上，针对该第一方式传输数据中的上述两种解决方案，均可以达到减少时延的目的，因而可以在保证数据传输可靠性的前提下，减少时延。In summary, the above two solutions for data transmission in the first mode can both achieve the purpose of reducing time delay, and thus can reduce time delay on the premise of ensuring the reliability of data transmission.
需要说明的是，采用该第一方式传输数据，由于一组孤儿符号构成的一次传输所占用的符号的数量少于正常的一次传输所占用的符号的数量，因此将导致这两次传输所要采用的编码效率是不同的。以图5A为例，第一次传输、第二次传输、第三次传输、第六次传输均占用3个符号，则该四次传输占用的符号的编码效率是相同的，比如用C1表示，而第四次传输、第五次传输由于分别占用2个符号和1个符号，因此二者的编码效率均与C1不同，比如用C2表示第四次传输的编码效率，用C3表示第五次传输的编码效率。以图5B为例，第一次传输、第二次传输、第三次传输、第五次和第六次传输均占用3个符号，则该五次传输占用的符号的编码效率是相同的，比如用C1表示，而第四次传输由于占用2个符号，因此其编码效率与C1不同，比如用C4表示图5B中的第四次传输的编码效率。It should be noted that using the first method to transmit data, since the number of symbols occupied by a group of orphan symbols in one transmission is less than the number of symbols occupied by a normal transmission, it will cause the two transmissions to be used. The coding efficiency is different. Taking Figure 5A as an example, the first transmission, the second transmission, the third transmission, and the sixth transmission all occupy 3 symbols, and the coding efficiency of the symbols occupied by the four transmissions is the same, for example, it is represented by C1 , And the fourth transmission and the fifth transmission occupy 2 symbols and 1 symbol respectively, so their coding efficiency is different from C1. For example, C2 represents the coding efficiency of the fourth transmission, and C3 represents the fifth The coding efficiency of the second transmission. Taking Figure 5B as an example, the first transmission, the second transmission, the third transmission, the fifth and the sixth transmission all occupy 3 symbols, and the coding efficiency of the symbols occupied by the five transmissions is the same. For example, it is represented by C1, and the coding efficiency of the fourth transmission is different from C1 because it occupies 2 symbols. For example, C4 is used to represent the coding efficiency of the fourth transmission in FIG. 5B.
需要说明的是，一次传输所占用的符号的编码效率(如上述C1)可以是协议预定义、或网络侧预先配置的(比如网络设备配置给自身和终端设备)。It should be noted that the coding efficiency of symbols occupied by one transmission (such as the above C1) may be predefined by the protocol or pre-configured on the network side (for example, the network device is configured for itself and the terminal device).
下面给出两种不同的计算一组孤儿符号的编码效率的实现方法。Two different implementation methods for calculating the coding efficiency of a group of orphan symbols are given below.
方法1，根据一次传输的符号的编码效率、孤儿符号的数量及一次传输的符号的数量，确定一组孤儿符号的编码效率。Method 1: Determine the coding efficiency of a group of orphan symbols according to the coding efficiency of the symbols transmitted at one time, the number of orphan symbols, and the number of symbols transmitted at one time.
作为一种实现方法，当一组孤儿符号的调制阶数与一次传输的符号的调制阶数相同时，则一组孤儿符号的编码效率＝(一次传输的符号的编码效率*一次传输的符号的数量)/一组孤儿符号的数量。As an implementation method, when the modulation order of a group of orphan symbols is the same as the modulation order of symbols transmitted at one time, then the coding efficiency of a group of orphan symbols = (coding efficiency of symbols transmitted at one time* Number)/Number of orphan symbols in a group.
比如，用C1表示一次传输的符号的编码效率，用n表示一次传输的符号的数量，用k表示一组孤儿符号的数量，则一组孤儿符号的编码效率＝(C1*n)/k。其中，一组孤儿符号的调制阶数与一次传输的符号的调制阶数相同，比如都是2。For example, if C1 is used to represent the coding efficiency of symbols transmitted at one time, n is used to represent the number of symbols transmitted at one time, and k is used to represent the number of a group of orphan symbols, then the coding efficiency of a group of orphan symbols=(C1*n)/k. Among them, the modulation order of a group of orphan symbols is the same as the modulation order of the symbols transmitted once, for example, both are 2.
以图5A为例，若C1＝1/3，则C2＝(1/3*3)/2＝1/2，C3＝(1/3*3)/1＝1。以图5B为例，若C1＝1/3，则C4＝(1/3*3)/2＝1/2。因此，可以分别采用C2＝1/2，C3＝1，C4＝1/2的编码效率对相应的一组孤儿符号进行编码。Taking FIG. 5A as an example, if C1=1/3, then C2=(1/3*3)/2=1/2, C3=(1/3*3)/1=1. Taking Figure 5B as an example, if C1=1/3, then C4=(1/3*3)/2=1/2. Therefore, the coding efficiency of C2=1/2, C3=1, and C4=1/2 can be used to code the corresponding group of orphan symbols.
当然，在计算得到上述一组孤儿符号的编码效率之后，也可以进一步调整上述编码效率，以得到其他的编码效率作为最终使用的编码效率。以上述C2为例，在计算得到C2＝1/2之后，可以在调制编码表格(如下表1)中，通过四舍五入的方式寻找最接近1/2的值作为编码效率，比如最终的编码效率用C2’表示，则C2’可能略大于C2，也可能略小于C2。Of course, after the coding efficiency of the aforementioned group of orphan symbols is calculated, the aforementioned coding efficiency can also be further adjusted to obtain other coding efficiency as the final coding efficiency. Taking the above C2 as an example, after calculating C2=1/2, you can find the value closest to 1/2 in the modulation and coding table (see Table 1 below) by rounding as the coding efficiency, such as the final coding efficiency C2' means that C2' may be slightly larger than C2, or slightly smaller than C2.
如表1所示，第一列为MCS索引，第二列为调整阶数，第三列为目标码率，第四列为频谱效率。其中，将目标码率＝编码效率*1024，或者，编码效率＝目标码率/1024。As shown in Table 1, the first column is the MCS index, the second column is the adjustment order, the third column is the target code rate, and the fourth column is the spectral efficiency. Among them, the target code rate=encoding efficiency*1024, or the encoding efficiency=target code rate/1024.
比如，若上述正常的一次传输的符号采用的调制阶数为2，一组孤儿符号采用的调制阶数为2，根据表1可以发现：当目标码率＝526时，得到的编码效率＝526/1024，是为表1中最接近1/2的，因此，可以将526/1024作为最终的编码效率，即C2’＝526/1024。For example, if the modulation order used for the above-mentioned normal one-time transmission symbol is 2, and the modulation order used for a group of orphan symbols is 2, according to Table 1, it can be found that when the target code rate=526, the obtained coding efficiency=526 /1024 is the closest to 1/2 in Table 1. Therefore, 526/1024 can be used as the final coding efficiency, that is, C2'=526/1024.
作为又一种实现方法，当一组孤儿符号的调制阶数与一次传输的符号的调制阶数不同时，一组孤儿符号的编码效率＝(一次传输的符号的编码效率*一次传输的符号的数量)/一组孤儿符号的数量*(一次传输的符号的调制阶数/一组孤儿符号的调制阶数)。As yet another implementation method, when the modulation order of a group of orphan symbols is different from the modulation order of the symbols transmitted at one time, the coding efficiency of a group of orphan symbols = (coding efficiency of symbols transmitted at one time* Number)/Number of a group of orphan symbols* (Modulation order of symbols transmitted at one time/Modulation order of a group of orphan symbols).
比如，用C1表示一次传输的符号的编码效率，用n表示一次传输的符号的数量，用k表示一组孤儿符号的数量，Q1表示一次传输的符号的调制阶数，Q2表示一组孤儿符号的调制阶数，则一组孤儿符号的编码效率＝(C1*n)/k*(Q1/Q2)。For example, use C1 to represent the coding efficiency of symbols transmitted at one time, n to represent the number of symbols to be transmitted at one time, k to represent the number of a group of orphan symbols, Q1 to represent the modulation order of symbols to be transmitted at one time, and Q2 to represent a group of orphan symbols. The modulation order of, then the coding efficiency of a group of orphan symbols=(C1*n)/k*(Q1/Q2).
以图5A为例，若C1＝1/3，Q1＝2，Q2＝4，则C2＝(1/3*3)/2*(2/4)＝1/4，C3＝(1/3*3)/1*(2/4)＝1/2。以图5B为例，若C1＝1/3，则C4＝(1/3*3)/2*(2/4)＝1/4。因此，可以分别采用C2＝1/4，C3＝1/2，C4＝1/4的编码效率对相应的孤儿符号进行编码。Taking Figure 5A as an example, if C1=1/3, Q1=2, Q2=4, then C2=(1/3*3)/2*(2/4)=1/4, C3=(1/3 *3)/1*(2/4)=1/2. Taking Fig. 5B as an example, if C1=1/3, then C4=(1/3*3)/2*(2/4)=1/4. Therefore, the coding efficiency of C2=1/4, C3=1/2, C4=1/4 can be used to code the corresponding orphan symbols.
当然，在计算得到上述一组孤儿符号的编码效率之后，也可以进一步调整上述编码效率，以得到其他的编码效率作为最终使用的编码效率。以上述C2为例，在计算得到C2＝1/4之后，可以在调制编码表格(如下表1)中，通过四舍五入的方式寻找最接近1/4的值作为编码效率，比如最终的编码效率用C2’表示，则C2’可能略大于C2，也可能略小于C2。Of course, after the coding efficiency of the aforementioned group of orphan symbols is calculated, the aforementioned coding efficiency can also be further adjusted to obtain other coding efficiency as the final coding efficiency. Taking the above C2 as an example, after calculating C2=1/4, you can find the value closest to 1/4 in the modulation and coding table (see Table 1 below) by rounding up as the coding efficiency, such as the final coding efficiency C2' means that C2' may be slightly larger than C2, or slightly smaller than C2.
如表1所示，第一列为MCS索引，第二列为调整阶数，第三列为目标码率，第四列为频谱效率。其中，将目标码率＝编码效率*1024，或者，编码效率＝目标码率/1024。As shown in Table 1, the first column is the MCS index, the second column is the adjustment order, the third column is the target code rate, and the fourth column is the spectral efficiency. Among them, the target code rate=encoding efficiency*1024, or the encoding efficiency=target code rate/1024.
比如，若上述一次传输的符号采用的调制阶数为2，一组孤儿符号采用的调制阶数为4，因此可以发现：当目标码率＝378时，得到的折合编码效率＝378*/1024＝378/1024，是为表1中最接近1/4的，因此，可以将378/1024作为最终的编码效率，即C2’＝378/1024。For example, if the modulation order used by the symbols transmitted at one time is 2, and the modulation order used by a group of orphan symbols is 4, it can be found that when the target code rate=378, the obtained reduced coding efficiency=378*/1024 =378/1024, which is the closest to 1/4 in Table 1. Therefore, 378/1024 can be used as the final coding efficiency, that is, C2'=378/1024.
表1调制编码表格Table 1 Modulation coding table
Figure PCTCN2020081777-appb-000001
Figure PCTCN2020081777-appb-000001
方法2，根据一次传输的符号的编码效率、一组孤儿符号中可用时频资源的数量及一次传输的符号中可用时频资源的数量，确定一组孤儿符号的编码效率。Method 2: Determine the coding efficiency of a group of orphan symbols according to the coding efficiency of a group of orphan symbols, the number of available time-frequency resources in a group of orphan symbols, and the number of available time-frequency resources in a group of symbols transmitted at one time.
作为一种实现方法，当一组孤儿符号的调制阶数与一次传输的符号的调制阶数相同时，一组孤儿符号的编码效率＝(一次传输的符号的编码效率*一次传输的符号中可用时频资源的数量)/一组孤儿符号中可用时频资源的数量。As an implementation method, when the modulation order of a group of orphan symbols is the same as the modulation order of the symbols of one transmission, the coding efficiency of a group of orphan symbols = (the coding efficiency of the symbols of one transmission * the available symbols of the transmission The number of time-frequency resources)/the number of available time-frequency resources in a group of orphan symbols.
比如，用C1表示一次传输的符号的编码效率，用x表示一次传输的符号中可用时频 资源的数量，用y表示一组孤儿符号中可用时频资源的数量，则一组孤儿符号的编码效率＝(C1*x)/y。For example, use C1 to represent the coding efficiency of symbols transmitted at one time, x to represent the number of available time-frequency resources in a symbol of one transmission, and y to represent the number of available time-frequency resources in a group of orphan symbols, then the coding of a group of orphan symbols Efficiency = (C1*x)/y.
作为一个示例，以可用时频资源为资源单元(resouce elemetn，RE)为例，若3个符号可用于数据传输的RE的数量为1024个，2个符号中的RE的数量为720，上述C1＝1/3，则图5A中的C2＝(1/3*1024)/720＝64/135，图5B中的C4＝(1/3*1024)/720＝64/135。As an example, taking the available time-frequency resources as resource elements (resource elements, RE) as an example, if the number of REs that can be used for data transmission in 3 symbols is 1024, the number of REs in 2 symbols is 720, and the above C1 =1/3, then C2=(1/3*1024)/720=64/135 in FIG. 5A, and C4=(1/3*1024)/720=64/135 in FIG. 5B.
作为又一种实现方法，当一组孤儿符号的调制阶数与一次传输的符号的调制阶数不同时，一组孤儿符号的编码效率＝(一次传输的符号的编码效率*一次传输的符号中可用时频资源的数量)/一组孤儿符号中可用时频资源的数量*(一次传输的符号的调制阶数/一组孤儿符号的调制阶数)。As yet another implementation method, when the modulation order of a group of orphan symbols is different from the modulation order of the symbols transmitted at one time, the coding efficiency of a group of orphan symbols = (coding efficiency of the symbols transmitted at one time*in the symbols transmitted at one time) The number of available time-frequency resources)/the number of available time-frequency resources in a group of orphan symbols*(the modulation order of symbols transmitted at one time/the modulation order of a group of orphan symbols).
比如，用C1表示一次传输的符号的编码效率，用x表示一次传输的符号中可用时频资源的数量，用y表示一组孤儿符号中可用时频资源的数量，Q1表示一次传输的符号的调制阶数，Q2表示一组孤儿符号的调制阶数，则一组孤儿符号的编码效率＝(C1*x)/y*(Q1/Q2)。For example, use C1 to represent the coding efficiency of symbols transmitted at one time, x to represent the number of available time-frequency resources in a symbol of one transmission, y to represent the number of available time-frequency resources in a group of orphan symbols, and Q1 to represent the number of symbols transmitted at one time. Modulation order, Q2 represents the modulation order of a group of orphan symbols, then the coding efficiency of a group of orphan symbols = (C1*x)/y*(Q1/Q2).
作为一个示例，以可用RE为例，若3个符号可用于数据传输的RE的数量为1024个，2个符号中的RE的数量为720，上述C1＝1/3，Q1＝2，Q2＝4，则图5A中的C2＝(1/3*1024)/720*(2/4)＝32/135，以及，图5B中的C4＝(1/3*1024)/720*(2/4)＝32/135。As an example, taking usable REs as an example, if the number of REs that can be used for data transmission in 3 symbols is 1024 and the number of REs in 2 symbols is 720, the above C1=1/3, Q1=2, Q2= 4, then C2=(1/3*1024)/720*(2/4)=32/135 in Figure 5A, and C4=(1/3*1024)/720*(2/ 4)=32/135.
当然，在计算得到上述一组孤儿符号的编码效率之后，也可以进一步调整上述编码效率，以得到其他的编码效率作为最终使用的编码效率。其具体实现方法，与上述方法1中的结合表1的实现方法相同，可以参考前述描述。Of course, after the coding efficiency of the aforementioned group of orphan symbols is calculated, the aforementioned coding efficiency can also be further adjusted to obtain other coding efficiency as the final coding efficiency. The specific implementation method is the same as the implementation method combined with Table 1 in the above method 1, and the foregoing description can be referred to.
作为一种可替代的实现方法，还可以用频谱效率计算替代上述的编码效率计算。As an alternative implementation method, spectrum efficiency calculation can also be used to replace the foregoing coding efficiency calculation.
比如，针对上述方法1，不需要通过上述方法1计算一组孤儿符号的编码效率，而是计算孤儿符号的频谱效率，例如，一组孤儿符号的频谱效率＝(一次传输的符号的频谱效率*一次传输的符号的数量)/一组孤儿符号的数量，然后根据从表1中寻找与计算出的频谱效率匹配的编码效率和调制阶数。For example, for the above method 1, there is no need to calculate the coding efficiency of a group of orphan symbols through the above method 1, but the spectrum efficiency of the orphan symbols, for example, the spectrum efficiency of a group of orphan symbols=(spectral efficiency of symbols transmitted at one time* The number of symbols transmitted at a time)/the number of a group of orphan symbols, and then according to Table 1 to find the coding efficiency and modulation order matching the calculated spectrum efficiency.
再比如，针对上述方法2，不需要通过上述方法2计算一组孤儿符号的编码效率，而是计算一组孤儿符号的频谱效率，例如，一组孤儿符号的频谱效率＝(一次传输的符号的频谱效率*一次传输的符号中可用时频资源的数量)/一组孤儿符号中可用时频资源的数量，然后根据从表1中寻找与计算出的频谱效率匹配的编码效率和调制阶数。其中，匹配指的是在表1中属于同一行(即编码效率、调制阶数和频谱效率在同一行)。For another example, for the above method 2, it is not necessary to calculate the coding efficiency of a group of orphan symbols by the method 2 above, but to calculate the spectrum efficiency of a group of orphan symbols, for example, the spectrum efficiency of a group of orphan symbols=(the symbol of one transmission Spectrum efficiency*The number of available time-frequency resources in a symbol transmitted at one time)/The number of available time-frequency resources in a group of orphan symbols, and then find the coding efficiency and modulation order matching the calculated spectrum efficiency from Table 1. Among them, matching refers to the same row in Table 1 (that is, the coding efficiency, modulation order, and spectrum efficiency are in the same row).
进一步地，若采用该第一方式传输数据，则在一种实现方法中，发送端(终端设备、或网络设备)可以在一次传输的符号上和一组孤儿符号上采用相同的传输功率进行数据传输。以图5A中的时间单元L为例，则发送端在第一次传输、第二次传输、第三次传输和第四次传输上采用相同的传输功率。Further, if the first method is used to transmit data, in an implementation method, the sender (terminal device or network device) can use the same transmission power for data on the symbols transmitted once and on a group of orphan symbols. transmission. Taking the time unit L in FIG. 5A as an example, the sending end uses the same transmission power for the first transmission, the second transmission, the third transmission, and the fourth transmission.
在又一种实现方法中，发送端(终端设备、或网络设备)可以在一次传输的符号上和一组孤儿符号上采用不同的传输功率进行数据传输。由于一组孤儿符号的数量少于一次传输的符号，因此一组孤儿符号的编码效率大于一次传输的编码效率，这将可能导致提高了接收端接收一组孤儿符号上的数据的误码率。为降低接收端接收一组孤儿符号上的数据的误码率，本申请可以将一组孤儿符号上的数据的传输功率从第二传输功率调整为第一传输功率，而一次传输的符号上的数据的传输功率仍然保持为第二传输功率，其中，第一传输功率大于第二传输功率。也即，通信设备使用第一传输功率在时间单元的一组孤儿符号上 进行数据传输，以及使用第二传输功率在时间单元的其他符号(即正常的一次传输的符号)上进行数据传输。In yet another implementation method, the transmitting end (terminal device or network device) can use different transmission powers for data transmission on the symbols transmitted once and a group of orphan symbols. Since the number of a group of orphan symbols is less than the symbols transmitted at one time, the coding efficiency of a group of orphan symbols is greater than the coding efficiency of one transmission, which may lead to an increase in the bit error rate of the data on the receiving end receiving a group of orphan symbols. In order to reduce the bit error rate of the data on a group of orphan symbols received by the receiving end, the application can adjust the transmission power of the data on a group of orphan symbols from the second transmission power to the first transmission power, and the transmission power The data transmission power remains at the second transmission power, where the first transmission power is greater than the second transmission power. That is, the communication device uses the first transmission power to perform data transmission on a group of orphan symbols in the time unit, and uses the second transmission power to perform data transmission on other symbols in the time unit (i.e., symbols of a normal transmission).
下面分别以发送端分别为终端设备或网络设备，对第一传输功率的调整方式进行说明。Hereinafter, the method for adjusting the first transmission power will be described with the sending end being a terminal device or a network device respectively.
情形一、发送端是网络设备。Case 1: The sending end is a network device.
方法1、网络设备确定第二传输功率与预设固定提升值之和，作为第一传输功率。 Method 1. The network device determines the sum of the second transmission power and the preset fixed boost value as the first transmission power.
例如，预设固定值为3分贝(dB)，则网络设备确定第一传输功率＝第二传输功率+3dB。For example, if the preset fixed value is 3 decibels (dB), the network device determines that the first transmission power=the second transmission power+3dB.
方法2、网络设备根据一组孤儿符号的数量和一次传输的符号确定提升值，并确定第二传输功率与提升值之和，作为第一传输功率。 Method 2. The network device determines the boost value according to the number of a group of orphan symbols and the symbols transmitted once, and determines the sum of the second transmission power and the boost value as the first transmission power.
例如，当n>k>1/2*n时，则提升3dB，即第一传输功率＝第二传输功率+3dB；当1/2*n>k>1/4*n时，则提升6dB，即第一传输功率＝第二传输功率+6dB；当1/4*n>k时,则提升9dB，即第一传输功率＝第二传输功率+9dB。For example, when n>k>1/2*n, the increase is 3dB, that is, the first transmission power = the second transmission power + 3dB; when 1/2*n>k>1/4*n, the increase is 6dB , That is, the first transmission power=the second transmission power+6dB; when 1/4*n>k, the increase is 9dB, that is, the first transmission power=the second transmission power+9dB.
再比如，提升倍数＝n/k，则第一传输功率＝第二传输功率*(n/k)。或者理解为提升量＝第二传输功率*(n/k-1)，因此第一传输功率＝第二传输功率+第二传输功率*(n/k-1)＝第二传输功率*(n/k)。For another example, if the boosting factor=n/k, then the first transmission power=the second transmission power*(n/k). Or it can be understood as boost=second transmission power*(n/k-1), so first transmission power=second transmission power+second transmission power*(n/k-1)=second transmission power*(n /k).
其中，n为一次传输的符号的数量，k为一组孤儿符号的数量。Among them, n is the number of symbols transmitted at one time, and k is the number of a group of orphan symbols.
方法3、网络设备从预先配置的多个提升值中选择一个提升值，并确定第二传输功率与提升值之和，作为第一传输功率。Method 3: The network device selects a boost value from a plurality of pre-configured boost values, and determines the sum of the second transmission power and the boost value as the first transmission power.
比如，网络设备预先配置3个提升值，分别为3dB、6dB和9dB，则第一传输功率＝第二传输功率+提升值，该提升值为3dB、6dB和9dB中的任一个。For example, the network device is pre-configured with 3 boost values, namely 3dB, 6dB and 9dB, then the first transmission power=the second transmission power+the boost value, and the boost value is any one of 3dB, 6dB and 9dB.
方法4、网络设备从预先配置的多个传输功率中选择一个传输功率，并确定选择的传输功率，作为第一传输功率。Method 4: The network device selects a transmission power from a plurality of pre-configured transmission powers, and determines the selected transmission power as the first transmission power.
比如，网络设备预先配置3个传输功率，分别为10dB、13dB和16dB，则第一传输功率为10dB、13dB和16dB中的任一个。For example, if the network device is pre-configured with 3 transmission powers, which are respectively 10dB, 13dB and 16dB, then the first transmission power is any one of 10dB, 13dB and 16dB.
情形二、发送端是终端设备。Case 2: The sending end is a terminal device.
由于终端设备的传输功率一般是受限的，因此终端设备有一个允许本次数据传输的最大传输功率，以下用MaxP表示。Since the transmission power of the terminal device is generally limited, the terminal device has a maximum transmission power that allows this data transmission, which is denoted by MaxP below.
并且，以下用min(a，b)表示a和b中的较小值，即当a大于或等于b时，则min(a，b)＝b，当a小于b时，则min(a，b)＝a。And, in the following, min(a,b) is used to represent the smaller value of a and b, that is, when a is greater than or equal to b, then min(a,b)=b, when a is less than b, then min(a, b)=a.
方法1、终端设备确定第二传输功率与预设固定提升值之和、MaxP二者中的较小值，作为第一传输功率。 Method 1. The terminal device determines the smaller of the sum of the second transmission power and the preset fixed boost value and MaxP as the first transmission power.
例如，预设固定值为3分贝(dB)，则终端设备确定第一传输功率＝min(第二传输功率+3dB，MaxP)。For example, if the preset fixed value is 3 decibels (dB), the terminal device determines that the first transmission power=min (the second transmission power+3dB, MaxP).
方法2、终端设备根据一组孤儿符号的数量和一次传输的符号确定提升值，并确定第二传输功率与提升值之和、MaxP二者中的较小值，作为第一传输功率。 Method 2. The terminal device determines the boost value according to the number of a group of orphan symbols and the symbols transmitted at one time, and determines the smaller of the second transmission power, the sum of the boost value, and MaxP as the first transmission power.
例如，当n>k>1/2*n时，提升3dB，则第一传输功率＝min(第二传输功率+3dB，MaxP)；当1/2*n>k>1/4*n时，提升6dB，则第一传输功率＝min(第二传输功率+6dB，MaxP)；当1/4*n>k时,提升9dB，则第一传输功率＝min(第二传输功率+9dB，MaxP)。For example, when n>k>1/2*n, increase by 3dB, then the first transmission power = min (second transmission power +3dB, MaxP); when 1/2*n>k>1/4*n , Increase by 6dB, then the first transmission power = min (second transmission power + 6dB, MaxP); when 1/4*n>k, increase by 9dB, then the first transmission power = min (second transmission power + 9dB, MaxP).
再比如，提升倍数＝n/k，则第一传输功率＝min(第二传输功率*(n/k)，MaxP)。或者理解为提升量＝第二传输功率*(n/k-1)，因此第一传输功率＝min(第二传输功率+第二传输功率*(n/k-1)，MaxP)＝min(第二传输功率*(n/k)，MaxP)。For another example, if the boosting factor=n/k, the first transmission power=min (the second transmission power*(n/k), MaxP). Or it can be understood as boost=second transmission power*(n/k-1), so first transmission power=min(second transmission power+second transmission power*(n/k-1), MaxP)=min( The second transmission power *(n/k), MaxP).
其中，n为一次传输的符号的数量，k为一组孤儿符号的数量。Among them, n is the number of symbols transmitted at one time, and k is the number of a group of orphan symbols.
方法3、终端设备从网络设备预先配置的多个提升值中选择一个提升值，并确定第二传输功率与提升值之和、MaxP二者中的较小值，作为第一传输功率。Method 3: The terminal device selects a boost value from a plurality of boost values pre-configured by the network device, and determines the smaller value of the sum of the second transmission power, the boost value, and MaxP as the first transmission power.
比如，网络设备预先配置3个提升值，分别为3dB、6dB和9dB，则第一传输功率＝min(第二传输功率+提升值，MaxP)，该提升值为3dB、6dB和9dB中的任一个。For example, if the network device is pre-configured with 3 boost values, which are 3dB, 6dB and 9dB, then the first transmission power = min (the second transmission power + boost value, MaxP), and the boost value is any of 3dB, 6dB and 9dB. One.
方法4、终端设备从网络设备预先配置的多个传输功率中选择一个传输功率，并确定选择的传输功率、MaxP二者中的较小值，作为第一传输功率。Method 4: The terminal device selects a transmission power from multiple transmission powers pre-configured by the network device, and determines the smaller of the selected transmission power and MaxP as the first transmission power.
比如，网络设备预先配置3个传输功率，分别为10dB、13dB和16dB，则第一传输功率为min(10dB，MaxP)、min(13dB，MaxP)和min(16dB，MaxP)中的任一个。For example, if the network device is pre-configured with three transmission powers of 10dB, 13dB, and 16dB, the first transmission power is any one of min (10dB, MaxP), min (13dB, MaxP) and min (16dB, MaxP).
方法5、终端设备接收网络设备通过信令通知的提升值，并确定第二传输功率与提升值之和、MaxP二者中的较小值，作为第一传输功率。Method 5: The terminal device receives the boost value notified by the network device through signaling, and determines the smaller of the sum of the second transmission power and the boost value, and MaxP as the first transmission power.
比如，网络设备通过DCI通知终端设备采用的提升值，则终端设备确定第一传输功率＝min(第二传输功率+提升值，MaxP)。For example, if the network device notifies the terminal device of the boost value adopted by the DCI, the terminal device determines that the first transmission power=min (the second transmission power+the boost value, MaxP).
使用方式二、第二方式传输数据(截短(puncturing)方式)Use method two, the second method to transmit data (puncturing method)
第二方式传输数据是指：一组孤儿符号传输的数据为一次传输的符号传输的数据中的部分数据。The second way of transmitting data means that the data transmitted by a group of orphan symbols is part of the data transmitted by the symbols of one transmission.
比如，一组孤儿符号的数量为k个，一次传输的符号的数量为n个，则该k个孤儿符号传输的数据可以是一次传输的符号中的前k个符号传输的数据，或者可以是一次传输的符号中的后k个符号传输的数据，或者还可以是一次传输的符号中的任意连续k个符号传输的数据等等，本申请不做限定。For example, if the number of a group of orphan symbols is k and the number of symbols transmitted at one time is n, the data transmitted by the k orphan symbols can be the data transmitted by the first k symbols in the symbols transmitted at one time, or it can be The data transmitted by the last k symbols in the symbols transmitted at one time, or the data transmitted by any consecutive k symbols in the symbols transmitted at one time, etc., are not limited in this application.
以图2A的时间单元L的一组孤儿符号12-13为例，若采用该方式，则可以将时间单元L的一组孤儿符号12-13单独构成一次传输，该次传输的数据量为其他一次传输的部分数据量。Take the group of orphan symbols 12-13 in the time unit L of FIG. 2A as an example. If this method is adopted, a group of orphan symbols 12-13 in the time unit L can be separately constituted for one transmission, and the amount of data transmitted at this time is other The amount of data transferred at one time.
基于该方式，具体实现中，至少可以有两种不同的解决方案。第一种可能的解决方案是：将时间单元尾部的一组孤儿符号单独作为新的一次传输的符号，将时间单元头部的一组孤儿符号也单独作为新的一次传输的符号(参考图5A的示例)；第二种可能的解决方案是：将时间单元尾部的一组孤儿符号单独作为新的一次传输的符号，而对于时间单元头部的孤儿符号，则是将该时间单元重新按照一次传输的符号的数量进行设计(参考图5B的示例)。Based on this approach, there can be at least two different solutions in specific implementation. The first possible solution is to use the group of orphan symbols at the end of the time unit as a new transmission symbol, and the group of orphan symbols at the head of the time unit as a new transmission symbol (refer to Figure 5A). Example); the second possible solution is to use a group of orphan symbols at the end of the time unit as a new symbol for a transmission, and for the orphan symbols at the head of the time unit, the time unit is re-accorded to The number of transmitted symbols is designed (refer to the example of Fig. 5B).
以图2A为例，基于该第二方式传输数据，根据上述第一种解决方案，可以得到如图5A所示的结果，即将时间单元L的一组孤儿符号12-13单独作为新的一次传输(占用2个符号)，将时间单元L+1的一组孤儿符号0单独作为新的一次传输(占用1个符号)。因此，重新设计的结果为：第一次传输占用时间单元L的符号3-5，第二次传输占用的时间单元L的符号6-8，第三次传输占用的时间单元L的符号9-11，第四次传输占用的时间单元L的符号12-13，第五次传输占用的时间单元L+1的符号0，第六次传输占用的时间单元L+1的符号1-3。其中，第一次、第二次、第三次和第六次传输的数据是相同的，或者说传输的数据量是相同的，而第四次和第五次传输的数据量是第一次、第二次、第三次或第六次传输的数据中的部分内容。比如，第四次传输的数据与第三次传输的符号9和10所传输的数据相同。可以看出，基于该实现方式，6次重复传输共占用15个符号，而图2B共占用21个符号，图2C共占用20个符号，因此该方式减少了符号使用数，即减少了 时延，有助于提升通信效率。Taking Figure 2A as an example, based on the second way of transmitting data, according to the above first solution, the result shown in Figure 5A can be obtained, that is, a group of orphan symbols 12-13 of time unit L is used as a new transmission. (Occupies 2 symbols), the group of orphan symbols 0 of the time unit L+1 is used as a new transmission alone (occupies 1 symbol). Therefore, the result of the redesign is: the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 11. The symbols 12-13 of the time unit L occupied by the fourth transmission, the symbols 0 of the time unit L+1 occupied by the fifth transmission, and the symbols 1-3 of the time unit L+1 occupied by the sixth transmission. Among them, the data transmitted for the first, second, third, and sixth time is the same, or the amount of data transmitted is the same, and the amount of data transmitted for the fourth and fifth times is the first time , Part of the data transmitted for the second, third or sixth time. For example, the data transmitted in the fourth time is the same as the data transmitted in symbols 9 and 10 of the third transmission. It can be seen that based on this implementation, 6 repeated transmissions occupy a total of 15 symbols, while Figure 2B occupies a total of 21 symbols, and Figure 2C occupies a total of 20 symbols, so this method reduces the number of symbols used, that is, reduces the delay , Help to improve communication efficiency.
以图2A为例，基于该第一方式传输数据，根据上述第二种解决方案，可以得到如图5B所示的结果，即将时间单元L的一组孤儿符号12-13单独作为新的一次传输(占用2个符号)，将时间单元L+1的符号重新按照一次传输的符号的数量进行设计。因此，重新设计的结果为：第一次传输占用时间单元L的符号3-5，第二次传输占用的时间单元L的符号6-8，第三次传输占用的时间单元L的符号9-11，第四次传输占用的时间单元L的符号12-13，第五次传输占用的时间单元L+1的符号0-2，第六次传输占用的时间单元L+1的符号3-5。其中，第一次、第二次、第三次、第五次和第六次传输的数据是相同的，或者说传输的数据量是相同的，而第四次传输的数据量是第一次、第二次、第三次、第五次或第六次传输的数据中的部分内容。比如，第四次传输的数据与第三次传输的符号9和10所传输的数据相同。可以看出，基于该实现方式，6次重复传输共占用17个符号，而图2B共占用21个符号，图2C共占用20个符号，因此该方式减少了符号使用数，即减少了时延。Taking Figure 2A as an example, based on the first method of transmitting data, according to the second solution described above, the result shown in Figure 5B can be obtained, that is, a group of orphan symbols 12-13 of the time unit L is used as a new transmission. (Occupy 2 symbols), redesign the symbols of the time unit L+1 according to the number of symbols transmitted at one time. Therefore, the result of the redesign is: the symbols 3-5 of the time unit L occupied by the first transmission, the symbols 6-8 of the time unit L occupied by the second transmission, and the symbols 9- of the time unit L occupied by the third transmission 11. Symbols 12-13 of time unit L occupied by the fourth transmission, symbols 0-2 of time unit L+1 occupied by the fifth transmission, symbols 3-5 of time unit L+1 occupied by the sixth transmission . Among them, the data transmitted for the first, second, third, fifth and sixth time is the same, or the amount of data transmitted is the same, and the amount of data transmitted for the fourth time is the first time. , Part of the data transmitted for the second, third, fifth or sixth time. For example, the data transmitted in the fourth time is the same as the data transmitted in symbols 9 and 10 of the third transmission. It can be seen that based on this implementation, 6 repeated transmissions occupy a total of 17 symbols, while Figure 2B occupies a total of 21 symbols, and Figure 2C occupies a total of 20 symbols. Therefore, this method reduces the number of symbols used, that is, reduces the delay. .
综上，针对该第二方式传输数据中的上述两种解决方案，均可以达到减少时延的目的，因而可以在保证数据传输可靠性的前提下，减少时延，有助于提升通信效率。In summary, the above two solutions for data transmission in the second mode can both achieve the purpose of reducing time delay. Therefore, the time delay can be reduced on the premise of ensuring the reliability of data transmission, which helps to improve communication efficiency.
需要说明的是，针对该第二方式传输数据，一组孤儿符号的编码效率与一次传输的编码效率可以采用相同的编码效率。It should be noted that, for the second mode of data transmission, the coding efficiency of a group of orphan symbols and the coding efficiency of one transmission can adopt the same coding efficiency.
使用方式三、第三方式传输数据(尽量均分方式)Use the third and the third method to transmit data (try to divide it equally)
当一组孤儿符号的数量为两个或两个以上时，则可以采用该使用方式三，即第三方式传输数据，第三方式传输数据是指：一组孤儿符号按照均分准则分别划分至时间单元中的不同的一次传输的符号构成新的一次传输的符号。其中，该新的一次传输的数据量与原始的一次传输的数据量是相同的。When the number of a group of orphan symbols is two or more, the third mode of use can be used, that is, the third mode to transmit data. The third mode of data transmission means: a group of orphan symbols are divided into Different once-transmitted symbols in the time unit constitute a new once-transmitted symbol. Wherein, the data volume of the new one-time transmission is the same as the data volume of the original one-time transmission.
基于该方式，具体实现中，至少可以有两种不同的解决方案。第一种可能的解决方案是：将时间单元尾部的一组孤儿符号按照均分准则分别划分至时间单元中的不同的一次传输的符号构成新的一次传输的符号，将时间单元头部的一组孤儿符号也按照均分准则分别划分至时间单元中的不同的一次传输的符号构成新的一次传输的符号(参考图6A所示的示例)；第二种可能的解决方案是：将时间单元尾部的一组孤儿符号按照均分准则分别划分至时间单元中的不同的一次传输的符号构成新的一次传输的符号，而对于时间单元头部的孤儿符号，则是将该时间单元重新按照一次传输的符号的数量进行设计(参考图6B所示的示例)。Based on this approach, there can be at least two different solutions in specific implementation. The first possible solution is: divide a group of orphan symbols at the end of the time unit into different symbols of one transmission in the time unit according to the equal division rule to form a new symbol for one transmission, and divide one of the symbols at the head of the time unit. The group of orphan symbols is also divided into different time units according to the equal division rule to form a new transmission symbol (refer to the example shown in FIG. 6A); the second possible solution is to divide the time unit A group of orphan symbols at the end are divided into different symbols in the time unit according to the equal division rule to form a new symbol in a transmission. For the orphan symbols at the head of the time unit, the time unit is re-based The number of transmitted symbols is designed (refer to the example shown in Fig. 6B).
以图2A为例，基于该第二方式传输数据，根据上述第一种解决方案，可以得到如图6A所示的结果，比如，将时间单元L的一组孤儿符号12划分至第二次传输的符号中构成新的第二次传输的符号(即时间单元L中的符号6-9)，将时间单元L的一组孤儿符号13划分至第三次传输的符号中构成新的第三次传输的符号(即时间单元L中的符号10-13)，将时间单元L+1的一组孤儿符号0划分至第五次传输的符号中构成新的第四次传输的符号(即时间单元L+1中的符号0-3)，以及新增一次传输，占用时间单元L+1的符号7-9。因此，重新设计的结果为：第一次传输占用时间单元L的符号3-5，第二次传输占用的时间单元L的符号6-9，第三次传输占用的时间单元L的符号10-13，第四次传输占用的时间单元L+1的符号0-3，第五次传输占用的时间单元L+1的符号4-6，第六次传输占用的时间单元L+1的符号7-9。其中，六次传输的数据是相同的。可以看出，基于该实现方式，6 次重复传输共占用21个符号，而图2B共占用21个符号，图2C共占用20个符号，因此该方式与图2B或图2C的方式相比，基本上时延保持一致。Taking FIG. 2A as an example, data is transmitted based on the second method. According to the first solution described above, the result shown in FIG. 6A can be obtained. For example, a group of orphan symbols 12 of the time unit L is divided into the second transmission The symbols in the symbols constitute the new second transmission symbols (ie symbols 6-9 in the time unit L), and the group of orphan symbols 13 in the time unit L is divided into the symbols in the third transmission to form a new third transmission The transmitted symbols (that is, symbols 10-13 in time unit L), divide a group of orphan symbols 0 of time unit L+1 into the symbols of the fifth transmission to form a new symbol of the fourth transmission (that is, time unit Symbols 0-3 in L+1), and a new transmission, occupying symbols 7-9 in time unit L+1. Therefore, the result of the redesign is: the first transmission occupies the symbols 3-5 of the time unit L, the second transmission occupies the symbols 6-9 of the time unit L, and the third transmission occupies the symbols of the time unit L 10- 13. Symbols 0-3 of the time unit L+1 occupied by the fourth transmission, symbols 4-6 of the time unit L+1 occupied by the fifth transmission, symbols 7 of the time unit L+1 occupied by the sixth transmission -9. Among them, the data transmitted six times are the same. It can be seen that based on this implementation, 6 repeated transmissions occupy a total of 21 symbols, while Figure 2B occupies a total of 21 symbols, and Figure 2C occupies a total of 20 symbols. Therefore, this method is compared with the method of Figure 2B or Figure 2C. Basically, the delay remains the same.
以图2A为例，基于该第二方式传输数据，根据上述第二种解决方案，可以得到如图6B所示的结果，比如，将时间单元L的一组孤儿符号12划分至第二次传输的符号中构成新的第二次传输的符号(即时间单元L中的符号6-9)，将时间单元L的一组孤儿符号13划分至第三次传输的符号中构成新的第三次传输的符号(即时间单元L中的符号10-13)，将时间单元L+1的符号重新按照一次传输的符号的数量进行设计。因此，重新设计的结果为：第一次传输占用时间单元L的符号3-5，第二次传输占用的时间单元L的符号6-9，第三次传输占用的时间单元L的符号10-13，第四次传输占用的时间单元L+1的符号0-2，第五次传输占用的时间单元L+1的符号3-5，第六次传输占用的时间单元L+1的符号6-8。其中，六次传输的数据是相同的。可以看出，基于该实现方式，6次重复传输共占用20个符号，而图2B共占用21个符号，图2C共占用20个符号，因此该方式与图2B或图2C的方式相比，基本上时延保持一致。Taking FIG. 2A as an example, data is transmitted based on the second method. According to the second solution described above, the result shown in FIG. 6B can be obtained. For example, a group of orphan symbols 12 of the time unit L is divided into the second transmission The symbols in the symbols constitute the new second transmission symbols (ie symbols 6-9 in the time unit L), and the group of orphan symbols 13 in the time unit L is divided into the symbols in the third transmission to form a new third transmission For the transmitted symbols (that is, symbols 10-13 in the time unit L), the symbols of the time unit L+1 are redesigned according to the number of symbols transmitted at one time. Therefore, the result of the redesign is: the first transmission occupies the symbols 3-5 of the time unit L, the second transmission occupies the symbols 6-9 of the time unit L, and the third transmission occupies the symbols of the time unit L 10- 13. Symbols 0-2 of the time unit L+1 occupied by the fourth transmission, symbols 3-5 of the time unit L+1 occupied by the fifth transmission, symbols 6 of the time unit L+1 occupied by the sixth transmission -8. Among them, the data transmitted six times are the same. It can be seen that based on this implementation, 6 repeated transmissions occupy a total of 20 symbols, while Figure 2B occupies a total of 21 symbols, and Figure 2C occupies a total of 20 symbols. Therefore, this method is compared with the method of Figure 2B or Figure 2C. Basically, the delay remains the same.
采用该使用方式三具有以下好处：The use of the third method has the following advantages:
1)、由于某些次的传输使用了更多的符号(如第二次、第三次和第四次均占用4个符号)，因此这些次的传输的符号可以采用比正常一次传输的符号更低的编码效率，其编码效率的具体计算方式，可以采用与上述使用方式一中的相同的计算方式，这里不再赘述。1). Because some transmissions use more symbols (for example, the second, third, and fourth transmissions all occupy 4 symbols), the symbols of these transmissions can be used more than the symbols of the normal transmission. For the lower coding efficiency, the specific calculation method of the coding efficiency can be the same as the calculation method in the above-mentioned use mode 1, which will not be repeated here.
2)、由于某些次的编码效率降低，因此可以降低这些次传输的传输功率，其计算降低后的传输功率的方法与上述使用方式一中计算提升后的传输功率的方法是一个相反的过程，因此可以参考前述方法，这里也不再赘述。由于降低了传输功率，因此可以节约资源开销。2) Because the coding efficiency of certain times is reduced, the transmission power of these transmissions can be reduced. The method of calculating the reduced transmission power is the opposite process to the method of calculating the increased transmission power in the above use mode 1. , So you can refer to the aforementioned method, which will not be repeated here. As the transmission power is reduced, resource overhead can be saved.
3)、将一组孤儿符号尽量均分到多个一次传输的符号中，构成新的一次传输，因而可以提升该多个一次传输的传输性能。3) Divide a group of orphan symbols into multiple one-time transmission symbols as much as possible to form a new one-time transmission, so the transmission performance of the multiple one-time transmissions can be improved.
需要说明的是，在具体实现中，作为一种实现方法，不将一组孤儿符号划分至第一次的一次传输的符号中。以图2A为例，则时间单元L的一组孤儿符号12和13均不划分至第一次传输(即时间单元L的符号3-5)中。这是因为：第一次传输占用的符号的数量需要作为参考，以获知正常的一次传输的占用的符号的数量，因而不适合做符号的新增。因此，在具体实现中，可以考虑将一组孤儿符号划分至除第一次传输的符号之外的其他一次传输的符号中。It should be noted that, in specific implementation, as an implementation method, a group of orphan symbols is not divided into the symbols of the first transmission. Taking FIG. 2A as an example, a group of orphan symbols 12 and 13 of time unit L are not divided into the first transmission (ie, symbols 3-5 of time unit L). This is because: the number of symbols occupied by the first transmission needs to be used as a reference to learn the number of symbols occupied by a normal transmission, so it is not suitable for adding symbols. Therefore, in specific implementation, it is possible to consider dividing a group of orphan symbols into symbols of one transmission except the symbols of the first transmission.
针对该使用方式三，作为一个示例，可以给出一个划分规则：一个时间单元中的一组孤儿符号的数量为k，则尽量均分给该时间单元内m次的一次传输中，如果该时间单元内包括第一次的一次传输，则该一次传输不参与均分，后k％m次的一次传输划分得到的符号数为ceil(k/m)，其余次的一次传输划分得到的符号数为floor(k/m)，其中，ceil表示向上取整，floor表示向下取整。For the third use mode, as an example, a division rule can be given: the number of orphan symbols in a time unit is k, and the number of orphan symbols in a time unit shall be divided equally among the m transmissions in the time unit. If the unit includes the first transmission, then this transmission does not participate in the equal division. The number of symbols obtained by the division of the next k%m transmission is ceil(k/m), and the number of symbols obtained by the division of the remaining transmissions Is floor(k/m), where ceil means round up, and floor means round down.
使用方式四、传输DMRSUse method four, transmit DMRS
基于该使用方式，将一组孤儿符号用于传输DMRS，这样就不需要占用数据符号来用作DMRS，因而可以提升数据传输的可靠性。Based on this mode of use, a group of orphan symbols are used to transmit DMRS, so there is no need to occupy data symbols to be used as DMRS, thereby improving the reliability of data transmission.
下面给出不同的设计方案。一方面，确定了传输DMRS的方式，另一方面，解决了孤儿符号跨越时间单元的问题。Different design schemes are given below. On the one hand, the method of transmitting DMRS is determined, and on the other hand, the problem of orphan symbols crossing time units is solved.
方法1，一组孤儿符号中的至少一个孤儿符号与时间单元上距离所述至少一个孤儿符 号最近的一次传输的符号对应。 Method 1. At least one orphan symbol in a group of orphan symbols corresponds to the symbol transmitted most recently from the at least one orphan symbol in a time unit.
下面结合不同的示例进行说明。The following is a description with different examples.
在第一个示例中，比如，参考图7，是针对图2A的示例的一个设计方案，重新设计的结果为：第一次传输占用时间单元L的符号3-5，第二次传输占用的时间单元L的符号6-8，第三次传输占用的时间单元L的符号9-11，第四次传输占用的时间单元L的符号12-13，第五次传输占用的时间单元L+1的符号0-3，第六次传输占用的时间单元L+1的符号4-6。可以看出，基于该实现方式，6次重复传输共占用18个符号，而图2B共占用21个符号，图2C共占用20个符号，因此该方式与图2B或图2C的方式相比，可以降低时延。In the first example, for example, referring to Figure 7, it is a design scheme for the example of Figure 2A. The result of the redesign is: the first transmission occupies the symbols 3-5 of the time unit L, and the second transmission occupies Symbols 6-8 of time unit L, symbols 9-11 of time unit L occupied by the third transmission, symbols 12-13 of time unit L occupied by the fourth transmission, time unit L+1 occupied by the fifth transmission Symbols 0-3, symbols 4-6 of the time unit L+1 occupied by the sixth transmission. It can be seen that based on this implementation, 6 repeated transmissions occupy a total of 18 symbols, while Figure 2B occupies a total of 21 symbols, and Figure 2C occupies a total of 20 symbols. Therefore, this method is compared with the method of Figure 2B or Figure 2C. Can reduce time delay.
针对该图7的示例，是将时间单元L的一组孤儿符号12-13作为一次单独的一次传输的符号(即采用上述使用方式一或使用方式二)，而将时间单元L+1的一组孤儿符号0用于传输DMRS，且该DMRS是第五次传输对应的DMRS。For the example in Fig. 7, a group of orphan symbols 12-13 of the time unit L is taken as a single transmission symbol (that is, using the above-mentioned use mode 1 or use mode 2), and the time unit L+1 The group orphan symbol 0 is used to transmit the DMRS, and the DMRS is the DMRS corresponding to the fifth transmission.
需要说明的是，对于上述第一次、第二次、第三次、第四次和第六次传输所采用的DMRS的设计方法，本申请不做限定。比如，作为一个示例，参考图7的第一次传输，可以将第一个符号(即时间单元L的符号3)用作传输DMRS。再比如，还可以是将一个DMRS作为两次传输的共享DMRS，比如图7的时间单元L的符号3上的DMRS是第一次传输和第二传输的共享DMRS，等等。It should be noted that this application does not limit the design method of the DMRS adopted for the first, second, third, fourth, and sixth transmissions. For example, as an example, referring to the first transmission in FIG. 7, the first symbol (ie, symbol 3 of the time unit L) may be used as the transmission DMRS. For another example, one DMRS may also be used as a shared DMRS for two transmissions. For example, the DMRS on symbol 3 of the time unit L in FIG. 7 is a shared DMRS for the first transmission and the second transmission, and so on.
在第二个示例中，参考图8A，为本申请提供的为数据传输的一个示例图。其中，第一次传输占用时间单元L的符号4-6，第二次传输占用的时间单元L的符号7-9，第三次传输占用的时间单元L的符号10-12，第四次传输占用的时间单元L的符号13和时间单元L+1的符号0-1，第五次传输占用的时间单元L+1的符号2-4，第六次传输占用的时间单元L+1的符号5-7。因此，该图8A与图2A类似，也是存在孤儿符号跨越时间单元的问题，因此也需要重新设计。In the second example, refer to FIG. 8A, which is an example diagram of data transmission provided for this application. Among them, the first transmission occupies symbols 4-6 of time unit L, the second transmission occupies symbols 7-9 of time unit L, the third transmission occupies symbols 10-12 of time unit L, and the fourth transmission Symbol 13 of the time unit L occupied and symbols 0-1 of the time unit L+1, symbols 2-4 of the time unit L+1 occupied by the fifth transmission, symbols of the time unit L+1 occupied by the sixth transmission 5-7. Therefore, this FIG. 8A is similar to FIG. 2A, and there is also the problem of orphan symbols crossing the time unit, so it also needs to be redesigned.
比如，基于该方法1，参考图8B，是针对图8A的示例的一个设计方案，重新设计的结果为：第一次传输占用时间单元L的符号4-6，第二次传输占用的时间单元L的符号7-9，第三次传输占用的时间单元L的符号10-12，第四次传输占用的时间单元L+1的一组孤儿符号0-1(即采用上述使用方式一或使用方式二)，第五次传输占用的时间单元L+1的符号2-4，第六次传输占用的时间单元L+1的符号5-7。For example, based on this method 1, refer to Fig. 8B, which is a design scheme for the example of Fig. 8A. The result of the redesign is: the first transmission occupies symbols 4-6 of the time unit L, and the second transmission occupies the time unit Symbols 7-9 of L, symbols 10-12 of the time unit L occupied by the third transmission, and a group of orphan symbols 0-1 of the time unit L+1 occupied by the fourth transmission (that is, use the above-mentioned method 1 or use Manner 2), symbols 2-4 of the time unit L+1 occupied by the fifth transmission, and symbols 5-7 of the time unit L+1 occupied by the sixth transmission.
针对该图8B的示例，是将时间单元L+1的一组孤儿符号0-1作为一次单独的一次传输的符号(即采用上述使用方式一或使用方式二)，而将时间单元L的孤儿符号13用于传输DMRS，且该DMRS是第三次传输对应的DMRS。For the example in Fig. 8B, a group of orphan symbols 0-1 of the time unit L+1 is taken as a single transmission symbol (that is, using the above-mentioned use mode one or two), and the orphan symbol of the time unit L Symbol 13 is used to transmit DMRS, and the DMRS is the DMRS corresponding to the third transmission.
需要说明的是，对于上述第一次、第二次、第四次、第五次和第六次传输所采用的DMRS的设计方法，本申请不做限定。比如，作为一个示例，参考图8B的第一次传输，可以将第一个符号(即时间单元L的符号4)用作传输DMRS。再比如，还可以是将一个DMRS作为两次传输的共享DMRS，比如图8B的时间单元L的符号4上的DMRS是第一次传输和第二传输的共享DMRS，等等。It should be noted that this application does not limit the design method of the DMRS adopted for the first, second, fourth, fifth and sixth transmissions. For example, as an example, referring to the first transmission in FIG. 8B, the first symbol (ie, symbol 4 of the time unit L) may be used as the transmission DMRS. For another example, one DMRS may also be used as a shared DMRS for two transmissions. For example, the DMRS on symbol 4 of the time unit L in FIG. 8B is a shared DMRS for the first transmission and the second transmission, and so on.
针对图8B所示的设计方案，第三次传输对应的DMRS是放在了传输数据的符号的后面的符号中的，在实际应用中，为了可以更好地解析数据，提升数据接收速率，可以设计为将DMRS承载于数据符号之前的符号中。比如，参考图8C，其为图8B所示的示例的一种变种设计方案，该方案中的第三次传输的DMRS占用时间单元L的符号10，第三次传输的数据占用时间单元L的符号11-13。可以理解为，一个孤儿符号与孤儿符号对应的一 次传输的符号在时间上连续，且孤儿符号时序在先。For the design scheme shown in Figure 8B, the DMRS corresponding to the third transmission is placed in the symbol after the symbol of the transmitted data. In practical applications, in order to better analyze the data and increase the data reception rate, you can It is designed to carry the DMRS in the symbol before the data symbol. For example, referring to FIG. 8C, which is a variant design solution of the example shown in FIG. 8B, the DMRS of the third transmission occupies the symbol 10 of the time unit L, and the data of the third transmission occupies the symbol 10 of the time unit L. Symbols 11-13. It can be understood that an orphan symbol and the symbol of one transmission corresponding to an orphan symbol are continuous in time, and the orphan symbol sequence is first.
方法2，一组孤儿符号中的至少一个孤儿符号与时间单元上的至少两个一次传输的符号对应。Method 2: At least one orphan symbol in a group of orphan symbols corresponds to at least two symbols transmitted at one time on the time unit.
下面结合不同的示例进行说明。The following is a description with different examples.
在第一个示例中，比如，参考图9A，是针对图2A的示例的一个设计方案，重新设计的结果为：第一次传输占用时间单元L的符号3-6，第二次传输占用的时间单元L的符号7-9，第三次传输占用的时间单元L的符号10-13，第四次传输占用的时间单元L+1的符号0-3，第五次传输占用的时间单元L+1的符号4-6，第六次传输占用的时间单元L+1的符号7-9。可以看出，基于该实现方式，6次重复传输共占用21个符号，而图2B共占用21个符号，图2C共占用20个符号，因此该方式与图2B或2C的方式相比，时延效果相当。In the first example, for example, referring to Fig. 9A, it is a design scheme for the example of Fig. 2A. The result of the redesign is: the first transmission occupies symbols 3-6 of the time unit L, and the second transmission occupies Symbols 7-9 of time unit L, symbols 10-13 of time unit L occupied by the third transmission, symbols 0-3 of time unit L+1 occupied by the fourth transmission, time unit L occupied by the fifth transmission Symbols 4-6 of +1, symbols 7-9 of time unit L+1 occupied by the sixth transmission. It can be seen that based on this implementation, 6 repetitive transmissions occupy a total of 21 symbols, while Figure 2B occupies a total of 21 symbols, and Figure 2C occupies a total of 20 symbols. Therefore, this method is compared with the method of Figure 2B or 2C. The extension effect is equivalent.
针对该图9A的示例，是将时间单元L的符号12-13均用于传输DMRS，并进一步将传输DMRS的符号置于传输数据的符号之前，即孤儿符号时序在先。其中，时间单元L的符号3传输的DMRS是第一次传输和第二次传输的共享DMRS，时间单元L的符号10传输的DMRS是第三次传输对应的DMRS。并且，该示例中，对于时间单元L+1，将孤儿符号0也用于传输DMRS，且该DMRS是第四次传输对应的DMRS。For the example of FIG. 9A, the symbols 12-13 of the time unit L are all used to transmit DMRS, and the symbols for transmitting DMRS are further placed before the symbols for transmitting data, that is, the orphan symbol sequence comes first. Among them, the DMRS transmitted by the symbol 3 of the time unit L is the shared DMRS for the first transmission and the second transmission, and the DMRS transmitted by the symbol 10 of the time unit L is the DMRS corresponding to the third transmission. And, in this example, for the time unit L+1, the orphan symbol 0 is also used to transmit the DMRS, and the DMRS is the DMRS corresponding to the fourth transmission.
需要说明的是，对于上述第五次和第六次传输所采用的DMRS的设计方法，本申请不做限定。比如，作为一个示例，可以将一次传输的第一个符号(如时间单元L+1的符号4、符号7)用作传输DMRS。再比如，还可以是将一个DMRS作为两次传输的共享DMRS，比如将时间单元L+1的符号4上的DMRS是第五次传输和第六次传输的共享DMRS，等等。It should be noted that this application does not limit the design method of the DMRS adopted for the fifth and sixth transmissions. For example, as an example, the first symbol (such as symbol 4 and symbol 7 of the time unit L+1) transmitted at a time can be used as the transmission DMRS. For another example, one DMRS may be used as a shared DMRS for two transmissions, for example, the DMRS on symbol 4 of the time unit L+1 is a shared DMRS for the fifth transmission and the sixth transmission, and so on.
在第二个示例中，针对图9A所示的设计方案，第一次传输和第二次传输的共享DMRS是放在了第一次传输的符号之前，在实际应用中，为了可以更好地解析数据，提升数据接收速率，可以设计为将该共享DMRS置于两次传输之间的符号中。比如，参考图9B，其为图9A所示的示例的一种变种设计方案，第一次传输和第二次传输的共享DMRS是放在了第一次传输和第二次传输之间的符号中(即时间单元L的符号6)。In the second example, for the design scheme shown in Figure 9A, the shared DMRS for the first transmission and the second transmission is placed before the symbol of the first transmission. In practical applications, in order to better To analyze the data and increase the data reception rate, it can be designed to place the shared DMRS in the symbol between two transmissions. For example, referring to Figure 9B, which is a variant design of the example shown in Figure 9A, the shared DMRS for the first transmission and the second transmission is the symbol placed between the first transmission and the second transmission. Medium (ie the symbol 6 of the time unit L).
使用方式五、不进行传输Use method five, no transmission
即一组孤儿符号不做任何使用，或者理解为一组孤儿符号空置、或者理解为一组孤儿符号不用于传输数据。That is, a group of orphan symbols is not used in any way, or it is understood that a group of orphan symbols is vacant, or a group of orphan symbols is not used for transmitting data.
使用方式六、传输HARQUse mode six, transmit HARQ
即，时间单元中的一组孤儿符号用于传输HARQ，该HARQ用于反馈该一组孤儿符号之前的一次传输的数据接收结果，该接收结果可以是已经成功接收或者是为未能成功接收，该HARQ用于通知网络设备是否可以提前终止后续的针对相同数据的重复传输。That is, a group of orphan symbols in the time unit is used to transmit HARQ, and the HARQ is used to feed back the data reception result of the previous transmission of the group of orphan symbols. The reception result may be successful reception or unsuccessful reception. The HARQ is used to notify the network device whether the subsequent repeated transmission of the same data can be terminated in advance.
需要说明的是，上述六种孤儿符号的使用方式，在实际应用中可以相互结合使用。比如多个一次传输跨越了多个时间单元，如上述各个示例中，6个一次传输均占用时间单元L和时间单元L+1，则可以在时间单元L和时间单元L+1中采用相同的孤儿符号的使用方式，也可以采用不同的一组孤儿符号的使用方式，本申请对此不做限定。It should be noted that the above six orphan symbols can be used in combination with each other in practical applications. For example, multiple one-time transmissions span multiple time units. As in the above examples, 6 one-time transmissions occupy time unit L and time unit L+1, and the same can be used in time unit L and time unit L+1. The use of orphan symbols can also be a different set of orphan symbols, which is not limited in this application.
以上是对本申请中对一组孤儿符号的使用方式的具体介绍。基于以上使用方式，下面对本申请上述步骤401和步骤402中如何确定一组孤儿符号的使用方式进行说明。The above is a specific introduction to the use of a group of orphan symbols in this application. Based on the above usage mode, how to determine the usage mode of a group of orphan symbols in the above step 401 and step 402 of the present application will be described below.
方法1，根据一组孤儿符号的数量、一次传输的符号的数量和门限值，确定时间单元中的一组孤儿符号的使用方式。 Method 1, according to the number of a group of orphan symbols, the number of symbols transmitted at one time, and the threshold value, determine the use mode of a group of orphan symbols in a time unit.
该方法可应用于网络设备，也可以应用于终端设备。The method can be applied to network equipment and terminal equipment.
比如，若确定一组孤儿符号的数量与一次传输的符号的数量的比值大于门限值，则确定使用方式为第一方式传输数据(即上述使用方式一)。For example, if it is determined that the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is greater than the threshold value, it is determined that the use mode is the first mode of data transmission (that is, the first mode of use).
再比如，若确定一组孤儿符号的数量与一次传输的符号的数量的比值小于或等于门限值，则确定使用方式为第二方式传输数据(即上述使用方式二)、或传输DMRS(即上述使用方式四)、或不进行传输(即上述使用方式五)或传输HARQ(即上述使用方式六)。其中，具体是第二方式传输数据，还是传输DMRS，还是传输HARQ，还是不进行传输，则可以是预先选定的。即，网络设备和终端设备可以事先约定：当一组孤儿符号的数量与一次传输的符号的数量的比值小于或等于门限值时，则一组孤儿符号的使用方式为第二方式传输数据。或者，网络设备和终端设备可以事先约定：当一组孤儿符号的数量与一次传输的符号的数量的比值小于或等于门限值时，则一组孤儿符号的使用方式为传输DMRS。网络设备和终端设备可以事先约定：当一组孤儿符号的数量与一次传输的符号的数量的比值小于或等于门限值时，则一组孤儿符号的使用方式为传输HARQ。网络设备和终端设备可以事先约定：当一组孤儿符号的数量与一次传输的符号的数量的比值小于或等于门限值时，则孤儿符号的使用方式为不进行传输。For another example, if it is determined that the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold value, then it is determined that the use mode is the second mode of data transmission (that is, the second mode of use), or the transmission of DMRS (that is, The above use mode 4), or no transmission (that is, the above use mode 5) or HARQ transmission (that is, the above use mode 6). Among them, the specific data transmission in the second mode, DMRS, HARQ, or no transmission may be pre-selected. That is, the network device and the terminal device may pre-determine that when the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold value, the use mode of the group of orphan symbols is the second mode to transmit data. Alternatively, the network device and the terminal device may pre-determine that when the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is less than or equal to a threshold value, the use mode of a group of orphan symbols is to transmit DMRS. The network device and the terminal device may agree in advance: when the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold value, the use mode of a group of orphan symbols is to transmit HARQ. The network device and the terminal device may pre-determine that when the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold value, the use mode of the orphan symbols is no transmission.
上述门限值可以是协议预定义的，也可以是预配置给网络设备和终端设备的，或者还可以是网络设备确定后配置给终端设备的。The foregoing threshold value may be predefined by the protocol, may also be pre-configured to the network device and the terminal device, or may also be configured to the terminal device after the network device is determined.
在又一种实现方法中，还可以是：若确定一组孤儿符号的数量与一次传输的符号的数量的比值大于或等于门限值，则确定使用方式为第一方式传输数据。若确定一组孤儿符号的数量与一次传输的符号的数量的比值小于门限值，则确定使用方式为第二方式传输数据(即上述使用方式二)、或传输DMRS(即上述使用方式四)、或不进行传输(即上述使用方式五)或传输HARQ(即上述使用方式六)。其具体实现过程类似前述方案，这里不再赘述。In yet another implementation method, it may also be: if it is determined that the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is greater than or equal to a threshold value, then it is determined that the use mode is the first mode to transmit data. If it is determined that the ratio of the number of a group of orphan symbols to the number of symbols transmitted at one time is less than the threshold, then the use mode is determined to be the second mode of data transmission (ie, the above-mentioned use mode 2), or the transmission of DMRS (the above-mentioned use mode 4) , Or no transmission (that is, the above-mentioned use mode 5) or HARQ (that is, the above-mentioned use mode 6). The specific implementation process is similar to the aforementioned solution, and will not be repeated here.
方法2，终端设备接收指示信息，指示信息用于指示使用方式。Method 2: The terminal device receives instruction information, and the instruction information is used to indicate the usage mode.
比如，终端设备可以从网络设备接收指示信息，该指示信息可以是下行控制信息(Downlink control information，DCI)或高层信令等。For example, the terminal device may receive indication information from the network device, and the indication information may be Downlink Control Information (DCI) or high-level signaling.
即，对于终端设备，除了可以使用上述方法1确定孤儿符号的使用方式之外，还可以由网络设备指示采用何种使用方式。That is, for the terminal device, in addition to using the method 1 described above to determine the use mode of the orphan symbol, the network device can also indicate which use mode to use.
比如，网络设备指示终端设备采用上述第一方式传输数据、或第二方式传输数据、或第三方式传输数据、或传输DMRS、或传输HAQR、或不进行传输。则终端设备可以根据网络设备指示的一组孤儿符号的使用方式传输数据。For example, the network device instructs the terminal device to use the above-mentioned first method to transmit data, or second method to transmit data, or third method to transmit data, or transmit DMRS, or transmit HAQR, or not to transmit. Then the terminal device can transmit data according to the usage mode of a group of orphan symbols indicated by the network device.
再比如，网络设备指示终端设备采用传输数据、或传输DMRS、或传输HAQR、或不进行传输。则终端设备可以根据网络设备指示的使用方式，传输数据。则当网络设备指示的一组孤儿符号的使用方式为传输DMRS、或传输HAQR、或不进行传输中的一种时，终端设备可以使用该一组孤儿符号的使用方式传输数据，当网络设备指示的一组孤儿符号的使用方式为传输数据时，则终端设备还需要进一步确定采用传输数据中的第一方式传输数据还是第二方式传输数据，具体判断方式可以参考上述方法1的描述，这里不再赘述。For another example, the network device instructs the terminal device to transmit data, or transmit DMRS, or transmit HAQR, or not to transmit. Then the terminal device can transmit data according to the usage mode indicated by the network device. Then when the use mode of a group of orphan symbols indicated by the network device is one of transmitting DMRS, or transmitting HAQR, or not transmitting, the terminal device can use the use mode of the group of orphan symbols to transmit data, when the network device indicates When the use of a group of orphan symbols is to transmit data, the terminal device needs to further determine whether to transmit data in the first mode or the second mode in the transmission data. For the specific judgment method, please refer to the description of the above method 1. Repeat it again.
方法3，终端设备和网络设备均采用第三方式传输数据(即上述使用方式三)。 Method 3, both the terminal equipment and the network equipment use the third method to transmit data (that is, the third method mentioned above).
比如，协议预定义终端设备和网络设备均采用第三方式传输数据，或者，预配置网络设备和终端设备均采用第三方式传输数据，或者还可以是网络设备确定采用第三方式传输 数据后通知终端设备。For example, the protocol-defined terminal equipment and network equipment both use the third method to transmit data, or the pre-configured network equipment and terminal equipment both use the third method to transmit data, or it can also be notified after the network device determines to use the third method to transmit data Terminal Equipment.
通过上述三种方法中的任一种，终端设备和网络设备可以确定一组孤儿符号的使用方式，且确定的一组孤儿符号的使用方式是相同的，进而双方可以实现正确通信。Through any of the above three methods, the terminal device and the network device can determine the usage mode of a group of orphan symbols, and the usage mode of the determined group of orphan symbols is the same, and the two parties can realize correct communication.
基于本申请的上述各个实施例，在不增加时延，甚至是降低时延的前提下，实现了孤儿符号的合理使用，解决了一次传输跨越两个时间单元的问题，有助于提升通信效率。Based on the above-mentioned various embodiments of the present application, the reasonable use of orphan symbols is realized without increasing or even reducing the time delay, which solves the problem that a transmission spans two time units and helps to improve communication efficiency. .
上述主要从各个网元之间交互的角度对本申请提供的方案进行了介绍。可以理解的是，上述实现各网元为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本发明能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。The foregoing mainly introduces the solution provided by this application from the perspective of interaction between various network elements. It can be understood that, in order to realize the above-mentioned functions, each network element described above includes hardware structures and/or software modules corresponding to each function. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present invention can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the present invention.
如图10所示，为本申请所涉及的数据传输的装置的一种可能的示例性框图，该装置1000可以以软件或硬件的形式存在。装置1000可以包括：处理单元1002和通信单元1003。作为一种实现方式，该通信单元1003可以包括接收单元和发送单元。处理单元1002用于对装置1000的动作进行控制管理。通信单元1003用于支持装置1000与其他网络实体的通信。装置1000还可以包括存储单元1001，用于存储装置1000的程序代码和数据。As shown in FIG. 10, it is a possible exemplary block diagram of the data transmission device involved in this application. The device 1000 may exist in the form of software or hardware. The apparatus 1000 may include: a processing unit 1002 and a communication unit 1003. As an implementation manner, the communication unit 1003 may include a receiving unit and a sending unit. The processing unit 1002 is used to control and manage the actions of the device 1000. The communication unit 1003 is used to support communication between the device 1000 and other network entities. The device 1000 may further include a storage unit 1001 for storing program codes and data of the device 1000.
其中，处理单元1002可以是处理器或控制器，例如可以是通用中央处理器(central processing unit，CPU)，通用处理器，数字信号处理(digital signal processing，DSP)，专用集成电路(application specific integrated circuits，ASIC)，现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包括一个或多个微处理器组合，DSP和微处理器的组合等等。存储单元1001可以是存储器。通信单元1003是一种该装置的接口电路，用于从其它装置接收信号。例如，当该装置以芯片的方式实现时，该通信单元1003是该芯片用于从其它芯片或装置接收信号的接口电路，或者，是该芯片用于向其它芯片或装置发送信号的接口电路。The processing unit 1002 may be a processor or a controller, for example, a general-purpose central processing unit (central processing unit, CPU), a general-purpose processor, a digital signal processing (digital signal processing, DSP), and an application specific integrated circuit (application specific integrated circuit). circuits, ASIC), field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application. The processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on. The storage unit 1001 may be a memory. The communication unit 1003 is an interface circuit of the device for receiving signals from other devices. For example, when the device is implemented as a chip, the communication unit 1003 is an interface circuit for the chip to receive signals from other chips or devices, or an interface circuit for the chip to send signals to other chips or devices.
该装置1000可以为上述任一实施例中的通信设备(如终端设备、或网络设备)，还可以为用于通信设备的芯片。例如，当装置1000为通信设备时，该处理单元1002例如可以是处理器，该通信单元1003例如可以是收发器。可选的，该收发器可以包括射频电路，该存储单元例如可以是存储器。例如，当装置1000为用于通信设备的芯片时，该处理单元1002例如可以是处理器，该通信单元1003例如可以是输入/输出接口、管脚或电路等。该处理单元1002可执行存储单元存储的计算机执行指令，可选地，该存储单元为该芯片内的存储单元，如寄存器、缓存等，该存储单元还可以是该通信设备内的位于该芯片外部的存储单元，如只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。The apparatus 1000 may be a communication device (such as a terminal device or a network device) in any of the foregoing embodiments, and may also be a chip for a communication device. For example, when the apparatus 1000 is a communication device, the processing unit 1002 may be a processor, for example, and the communication unit 1003 may be a transceiver, for example. Optionally, the transceiver may include a radio frequency circuit, and the storage unit may be, for example, a memory. For example, when the apparatus 1000 is a chip for a communication device, the processing unit 1002 may be a processor, for example, and the communication unit 1003 may be an input/output interface, a pin, or a circuit, for example. The processing unit 1002 can execute computer-executable instructions stored in the storage unit. Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a communication device located outside the chip. The storage unit, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), etc.
在一个实施例中，该装置1000为通信设备，处理单元，用于确定一个时间单元中的至少一组孤儿符号的使用方式，所述使用方式为传输数据、传输解调参考信号DMRS、传输混合自动重传请求HARQ或不进行传输中的一种，一组孤儿符号为一组符号，所述一组 符号的数量小于一次传输的符号的数量；通信单元，用于根据所述使用方式，在所述一个时间单元上进行数据传输。In one embodiment, the apparatus 1000 is a communication device, a processing unit, used to determine the use mode of at least one group of orphan symbols in a time unit, and the use mode is transmission of data, transmission of demodulation reference signal DMRS, and transmission of mixed Automatic repeat request HARQ or non-transmission. A group of orphan symbols is a group of symbols, and the number of the group of symbols is less than the number of symbols transmitted at one time; the communication unit is configured to: Data transmission is performed on the one time unit.
在一种可能的实现方法中，所述一个时间单元中存在至少两组孤儿符号时，所述通信设备确定的所述至少两组孤儿符号的使用方式相同或不同。In a possible implementation method, when there are at least two groups of orphan symbols in the one time unit, the use modes of the at least two groups of orphan symbols determined by the communication device are the same or different.
在一种可能的实现方法中，所述处理单元，具体用于：针对所述至少一组孤儿符号中的任意一组孤儿符号，根据所述一组孤儿符号的数量、一次传输的符号的数量和门限值，确定所述时间单元中的所述一组孤儿符号的使用方式。In a possible implementation method, the processing unit is specifically configured to: for any group of orphan symbols in the at least one group of orphan symbols, according to the number of the group of orphan symbols and the number of symbols transmitted at one time And the threshold value to determine the usage mode of the group of orphan symbols in the time unit.
在一种可能的实现方法中，所述传输数据包括第一传输数据和第二传输数据；所述处理单元，具体用于：确定所述一组孤儿符号的数量与所述一次传输的符号的数量的比值大于所述门限值，则确定所述使用方式为所述第一传输数据，所述第一传输数据是指：所述一组孤儿符号传输的数据量与所述一次传输的符号传输的数据量相同；或者，确定所述一组孤儿符号的数量与所述一次传输的符号的数量的比值小于或等于所述门限值，则确定所述使用方式为所述第二传输数据、或传输DMRS、或传输HARQ、或不进行传输，所述第二传输数据是指：所述一组孤儿符号传输的数据为所述一次传输的符号传输的数据中的部分数据。In a possible implementation method, the transmission data includes first transmission data and second transmission data; and the processing unit is specifically configured to: determine the number of orphan symbols in the group of orphan symbols and the difference between the symbols of the one transmission If the ratio of the quantity is greater than the threshold value, it is determined that the usage mode is the first transmission data, and the first transmission data refers to: the amount of data transmitted by the group of orphan symbols and the symbols transmitted at one time The amount of transmitted data is the same; or, if it is determined that the ratio of the number of the group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold, then it is determined that the usage mode is the second transmission data , Or transmitting DMRS, or transmitting HARQ, or not performing transmission, the second transmission data means: the data transmitted by the group of orphan symbols is part of the data transmitted by the symbols of the one transmission.
在一种可能的实现方法中，所述使用方式为所述第一传输数据；所述通信单元，具体用于使用第一传输功率在所述一个时间单元的所述一组孤儿符号上进行数据传输，以及使用所述第二传输功率在所述一个时间单元的一次传输的符号上进行数据传输，所述第一传输功率大于所述第二传输功率。In a possible implementation method, the use mode is the first transmission data; the communication unit is specifically configured to use the first transmission power to perform data on the group of orphan symbols in the one time unit Transmitting, and using the second transmission power to perform data transmission on a symbol transmitted once in the one time unit, the first transmission power is greater than the second transmission power.
在一种可能的实现方法中，所述装置为终端设备；所述处理单元，还用于：In a possible implementation method, the device is a terminal device; the processing unit is further configured to:
确定所述第二传输功率与预设固定提升值之和、允许本次数据传输的最大传输功率二者中的较小值，作为所述第一传输功率；或者，Determine the smaller of the sum of the second transmission power and the preset fixed boost value and the maximum transmission power allowed for this data transmission as the first transmission power; or,
根据所述孤儿符号的数量和所述一次传输的符号确定提升值，并确定所述第二传输功率与所述提升值之和、允许本次数据传输的最大传输功率二者中的较小值，作为所述第一传输功率；或者，Determine the boost value according to the number of the orphan symbols and the symbol of the one-time transmission, and determine the smaller of the sum of the second transmission power and the boost value and the maximum transmission power allowed for this data transmission , As the first transmission power; or,
从网络设备预先配置的多个提升值中选择一个提升值，并确定所述第二传输功率与所述提升值之和、允许本次数据传输的最大传输功率二者中的较小值，作为所述第一传输功率；或者，Select a boost value from a plurality of boost values pre-configured by the network device, and determine the smaller of the sum of the second transmission power and the boost value and the maximum transmission power allowed for this data transmission as The first transmission power; or,
从网络设备预先配置的多个传输功率中选择一个传输功率，并确定所述选择的传输功率、允许本次数据传输的最大传输功率二者中的较小值，作为所述第一传输功率；或者，Selecting a transmission power from a plurality of transmission powers pre-configured by the network device, and determining a smaller value of the selected transmission power and the maximum transmission power allowed for this data transmission as the first transmission power; or,
确定所述第二传输功率与提升值之和、允许本次数据传输的最大传输功率二者中的较小值，作为所述第一传输功率，所述提升值是由网络设备通过信令通知的。Determine the smaller of the sum of the second transmission power and the boost value and the maximum transmission power allowed for this data transmission as the first transmission power, and the boost value is notified by the network device through signaling of.
在一种可能的实现方法中，所述一组孤儿符号的使用方式为传输DMRS，所述一组孤儿符号中的至少一个孤儿符号与所述时间单元上距离所述至少一个孤儿符号最近的一次传输的符号对应。In a possible implementation method, the use of the group of orphan symbols is to transmit DMRS, and at least one orphan symbol in the group of orphan symbols is the closest to the at least one orphan symbol in the time unit. The transmitted symbol corresponds.
在一种可能的实现方法中，所述一组孤儿符号的使用方式为传输DMRS，所述一组孤儿符号中的至少一个孤儿符号与所述时间单元上的至少两个一次传输的符号对应。In a possible implementation method, the use of the group of orphan symbols is to transmit DMRS, and at least one orphan symbol in the group of orphan symbols corresponds to at least two symbols that are transmitted once on the time unit.
在一种可能的实现方法中，所述一组孤儿符号中的至少一个孤儿符号与所述至少一个孤儿符号对应的一次传输的符号在时间上连续，且所述至少一个孤儿符号时序在先。In a possible implementation method, at least one orphan symbol in the set of orphan symbols and the symbol for one transmission corresponding to the at least one orphan symbol are continuous in time, and the at least one orphan symbol is in the first sequence.
在一种可能的实现方法中，所述一组孤儿符号的数量为两个或两个以上，所述使用方 式为第三传输数据，所述第三传输数据是指：所述一组孤儿符号按照均分准则分别划分至所述一个时间单元中的不同的一次传输的符号构成新的一次传输的符号。In a possible implementation method, the number of the group of orphan symbols is two or more, the use mode is the third transmission data, and the third transmission data refers to: the group of orphan symbols The symbols of different one-time transmissions respectively divided into the one time unit according to the equal division rule constitute a new one-time transmission symbol.
在一种可能的实现方法中，所述装置为终端设备；所述通信单元，还用于接收指示信息，所述指示信息用于指示所述一个时间单元中的所述至少一组孤儿符号的使用方式。In a possible implementation method, the device is a terminal device; the communication unit is also used to receive instruction information, and the instruction information is used to indicate the status of the at least one group of orphan symbols in the one time unit. How to use it.
在一种可能的实现方法中，所述指示信息为下行控制信息DCI或高层信令。In a possible implementation method, the indication information is downlink control information DCI or high-layer signaling.
可以理解的是，该装置1000用于上述数据传输的方法时的具体实现过程以及相应的有益效果，可以参考前述方法实施例中的相关描述，这里不再赘述。It can be understood that, for the specific implementation process and corresponding beneficial effects when the device 1000 is used in the foregoing data transmission method, reference may be made to the relevant description in the foregoing method embodiment, which will not be repeated here.
如图11所示，为本申请提供的一种数据传输的装置示意图，该装置可以是上述实施例中的通信设备。该装置1100包括：处理器1102、通信接口1103、存储器1101。可选的，装置1100还可以包括通信线路1104。其中，通信接口1103、处理器1102以及存储器1101可以通过通信线路1104相互连接；通信线路1104可以是外设部件互连标准(peripheral component interconnect，简称PCI)总线或扩展工业标准结构(extended industry standard architecture，简称EISA)总线等。所述通信线路1104可以分为地址总线、数据总线、控制总线等。为便于表示，图11中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。As shown in FIG. 11, a schematic diagram of a data transmission device provided in this application, and the device may be the communication device in the foregoing embodiment. The device 1100 includes a processor 1102, a communication interface 1103, and a memory 1101. Optionally, the apparatus 1100 may further include a communication line 1104. Among them, the communication interface 1103, the processor 1102, and the memory 1101 may be connected to each other through a communication line 1104; the communication line 1104 may be a peripheral component interconnection standard (peripheral component interconnect, PCI for short) bus or an extended industry standard architecture (extended industry standard architecture) , Referred to as EISA) bus and so on. The communication line 1104 can be divided into an address bus, a data bus, a control bus, and so on. For ease of representation, only one thick line is used to represent in FIG. 11, but it does not mean that there is only one bus or one type of bus.
处理器1102可以是一个CPU，微处理器，ASIC，或一个或多个用于控制本申请方案程序执行的集成电路。The processor 1102 may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits used to control the execution of the program of the present application.
通信接口1103，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)，有线接入网等。 Communication interface 1103, using any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), Wired access network, etc.
存储器1101可以是ROM或可存储静态信息和指令的其他类型的静态存储设备，RAM或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路1104与处理器相连接。存储器也可以和处理器集成在一起。The memory 1101 may be ROM or other types of static storage devices that can store static information and instructions, RAM or other types of dynamic storage devices that can store information and instructions, or it can be an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory). read-only memory, EEPROM), compact disc (read-only memory, CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.), magnetic disks A storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto. The memory can exist independently and is connected to the processor through a communication line 1104. The memory can also be integrated with the processor.
其中，存储器1101用于存储执行本申请方案的计算机执行指令，并由处理器1102来控制执行。处理器1102用于执行存储器1101中存储的计算机执行指令，从而实现本申请上述实施例提供的数据传输的方法。The memory 1101 is used to store computer-executable instructions for executing the solution of the present application, and the processor 1102 controls the execution. The processor 1102 is configured to execute computer-executable instructions stored in the memory 1101, so as to implement the data transmission method provided in the foregoing embodiment of the present application.
可选的，本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application program code, which is not specifically limited in the embodiments of the present application.
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。此外，对于单数形式“a”，“an”和“the”出现的元素(element)，除非上下文另有明确规定，否则其不意味着“一个或仅一个”，而是意味着“一个或多于一个”。例如，“a device”意味着对一个或多个这样的device。A person of ordinary skill in the art can understand that the various digital numbers such as first and second involved in the present application are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application, but also indicate a sequence. "And/or" describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the associated objects are in an "or" relationship. "At least one" means one or more. At least two means two or more. "At least one", "any one" or similar expressions refer to any combination of these items, including any combination of single item (a) or plural items (a). For example, at least one (piece, species) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or Multiple. "Multiple" refers to two or more, and other measure words are similar. In addition, for elements in the singular form "a", "an" and "the", unless the context clearly dictates otherwise, it does not mean "one or only one", but means "one or more At one". For example, "a device" means to one or more such devices.
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。In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
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。The various illustrative logic units and circuits described in the embodiments of this application can be implemented by general-purpose processors, digital signal processors, application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, Discrete gates or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the described functions. The general-purpose processor may be a microprocessor, and optionally, the general-purpose processor may also be any traditional processor, controller, microcontroller, or state machine. The processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration achieve.
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RAM存储器、闪存、ROM存储器、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。The steps of the method or algorithm described in the embodiments of the present application can be directly embedded in hardware, a software unit executed by a processor, or a combination of the two. The software unit can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other storage medium in the art. Exemplarily, the storage medium may be connected to the processor, so that the processor can read information from the storage medium, and can store and write information to the storage medium. Optionally, the storage medium may also be integrated into the processor. The processor and the storage medium can be arranged in the ASIC.
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。These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.
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。In one or more exemplary designs, the aforementioned functions described in this application can be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, these functions can be stored on a computer-readable medium, or transmitted on a computer-readable medium in the form of one or more instructions or codes. Computer-readable media include computer storage media and communication media that facilitate the transfer of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special computer. For example, 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 program code media that can be read by general or special computers, or general or special processors. In addition, any connection can be appropriately defined as a computer-readable medium, for example, if the software is from a website, server, or other remote source through a coaxial cable, fiber optic computer, twisted pair, or 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. The said disks and discs include compressed disks, laser disks, optical discs, digital versatile discs (English: Digital Versatile Disc, abbreviated as: DVD), floppy disks and Blu-ray discs. Disks usually copy data with magnetism. Discs usually use lasers to copy data optically. The combination of the above can also be contained in a computer readable medium.
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。Those skilled in the art should be aware that in one or more of the above examples, the functions described in this application can be implemented by hardware, software, firmware or any combination thereof. When implemented by software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium. The computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another. The storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.
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。The specific implementations described above further describe the purpose, technical solutions and beneficial effects of this application in detail. It should be understood that the above are only specific implementations of this application and are not intended to limit the scope of this application. The protection scope, any modification, equivalent replacement, improvement, etc. made on the basis of the technical solution of this application shall be included in the protection scope of this application. The above description of the specification of this application can enable any technology in the field to utilize or realize the content of this application. Any modification based on the disclosed content should be considered obvious in the art. The basic principles described in this application can be applied to other modifications. Without departing from the nature and scope of the invention of this application. Therefore, the content disclosed in this application is not only limited to the described embodiments and designs, but can also be extended to the maximum range consistent with the principles of this application and the new features disclosed.
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。Although the application has been described in combination with specific features and embodiments, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, this specification and drawings are merely exemplary descriptions of the application defined by the appended claims, and are deemed to have covered any and all modifications, changes, combinations or equivalents within the scope of the application. Obviously, those skilled in the art can make various changes and modifications to the application without departing from the scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims (27)

  1. 一种数据传输的方法，其特征在于，包括：A method of data transmission, characterized in that it comprises:
    通信设备确定一个时间单元中的至少一组孤儿符号的使用方式，所述使用方式为传输数据、传输解调参考信号DMRS、传输混合自动重传请求HARQ或不进行传输中的一种，一组孤儿符号为一组符号，所述一组符号的数量小于一次传输的符号的数量；The communication device determines the use mode of at least one group of orphan symbols in a time unit, and the use mode is one of transmitting data, transmitting demodulation reference signal DMRS, transmitting hybrid automatic repeat request HARQ, or not transmitting. An orphan symbol is a group of symbols, the number of which is less than the number of symbols transmitted at one time;
    所述通信设备根据所述使用方式，在所述一个时间单元上进行数据传输。The communication device performs data transmission on the one time unit according to the usage mode.
  2. 如权利要求1所述的方法，其特征在于，所述一个时间单元中存在至少两组孤儿符号时，所述通信设备确定的所述至少两组孤儿符号的使用方式相同或不同。The method according to claim 1, wherein when there are at least two groups of orphan symbols in the one time unit, the use modes of the at least two groups of orphan symbols determined by the communication device are the same or different.
  3. 如权利要求1或2所述的方法，其特征在于，所述通信设备确定一个时间单元中的至少一组孤儿符号的使用方式，包括：The method according to claim 1 or 2, wherein the communication device determining the usage mode of at least one group of orphan symbols in a time unit comprises:
    针对所述至少一组孤儿符号中的任意一组孤儿符号，所述通信设备根据所述一组孤儿符号的数量、一次传输的符号的数量和门限值，确定所述时间单元中的所述一组孤儿符号的使用方式。For any group of orphan symbols in the at least one group of orphan symbols, the communication device determines the number of orphan symbols in the time unit according to the number of the group of orphan symbols, the number of symbols transmitted at one time, and the threshold value. How a set of orphan symbols are used.
  4. 如权利要求3所述的方法，其特征在于，所述传输数据包括第一传输数据和第二传输数据；The method according to claim 3, wherein the transmission data includes first transmission data and second transmission data;
    所述通信设备根据所述一组孤儿符号的数量、一次传输的符号的数量和门限值，确定所述一个时间单元中的所述一组孤儿符号的使用方式，包括：The communication device determines the usage mode of the group of orphan symbols in the one time unit according to the number of the group of orphan symbols, the number of symbols transmitted at one time, and the threshold value, including:
    所述通信设备确定所述一组孤儿符号的数量与所述一次传输的符号的数量的比值大于所述门限值，则确定所述使用方式为所述第一传输数据，所述第一传输数据是指：所述一组孤儿符号传输的数据量与所述一次传输的符号传输的数据量相同；或者，When the communication device determines that the ratio of the number of the group of orphan symbols to the number of symbols transmitted at one time is greater than the threshold value, it is determined that the usage mode is the first transmission data, and the first transmission Data refers to: the amount of data transmitted by the group of orphan symbols is the same as the amount of data transmitted by the symbols transmitted at one time; or,
    所述通信设备确定所述一组孤儿符号的数量与所述一次传输的符号的数量的比值小于或等于所述门限值，则确定所述使用方式为所述第二传输数据、或传输DMRS、或传输HARQ、或不进行传输，所述第二传输数据是指：所述一组孤儿符号传输的数据为所述一次传输的符号传输的数据中的部分数据。The communication device determines that the ratio of the number of the group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold value, and then determines that the usage mode is the second transmission data or the transmission DMRS , Or HARQ transmission, or no transmission, the second transmission data means that the data transmitted by the set of orphan symbols is part of the data transmitted by the symbols of the one transmission.
  5. 如权利要求4所述的方法，其特征在于，所述使用方式为所述第一传输数据；The method according to claim 4, wherein the use mode is the first transmission data;
    所述通信设备根据所述使用方式，在所述一个时间单元上进行数据传输，包括：The communication device performing data transmission on the one time unit according to the usage mode includes:
    所述通信设备使用第一传输功率在所述一个时间单元的所述一组孤儿符号上进行数据传输，以及使用所述第二传输功率在所述一个时间单元的一次传输的符号上进行数据传输，所述第一传输功率大于所述第二传输功率。The communication device uses the first transmission power to perform data transmission on the group of orphan symbols in the one time unit, and uses the second transmission power to perform data transmission on the symbols of one transmission in the one time unit , The first transmission power is greater than the second transmission power.
  6. 如权利要求1-3任一所述的方法，其特征在于，所述一组孤儿符号的使用方式为传输DMRS，所述一组孤儿符号中的至少一个孤儿符号与所述时间单元上距离所述至少一个孤儿符号最近的一次传输的符号对应。The method according to any one of claims 1 to 3, wherein the use mode of the group of orphan symbols is to transmit DMRS, and at least one orphan symbol in the group of orphan symbols is far away from the time unit. The at least one orphan symbol corresponds to the most recently transmitted symbol.
  7. 如权利要求1-3任一所述的方法，其特征在于，所述一组孤儿符号的使用方式为传输DMRS，所述一组孤儿符号中的至少一个孤儿符号与所述时间单元上的至少两个一次传输的符号对应。The method according to any one of claims 1 to 3, wherein the use mode of the group of orphan symbols is to transmit DMRS, and at least one orphan symbol in the group of orphan symbols is related to at least one of the orphan symbols in the time unit. The two symbols transmitted at one time correspond.
  8. 如权利要求6或7所述的方法，其特征在于，所述一组孤儿符号中的至少一个孤儿符号与所述至少一个孤儿符号对应的一次传输的符号在时间上连续，且所述至少一个孤儿符号时序在先。The method according to claim 6 or 7, wherein at least one orphan symbol in the set of orphan symbols and the symbol transmitted once corresponding to the at least one orphan symbol are continuous in time, and the at least one orphan symbol Orphan symbol sequence comes first.
  9. 如权利要求1-3任一所述的方法，其特征在于，所述一组孤儿符号的数量为两个或 两个以上，所述使用方式为第三传输数据，所述第三传输数据是指：所述一组孤儿符号按照均分准则分别划分至所述一个时间单元中的不同的一次传输的符号构成新的一次传输的符号。The method according to any one of claims 1 to 3, wherein the number of the group of orphan symbols is two or more, the use mode is third transmission data, and the third transmission data is Means: the group of orphan symbols is divided into different symbols of one transmission in the one time unit according to the equal division rule to form a new symbol of one transmission.
  10. 如权利要求1-9任一所述的方法，其特征在于，所述通信设备为终端设备、或网络设备。The method according to any one of claims 1-9, wherein the communication device is a terminal device or a network device.
  11. 如权利要求1-9任一所述的方法，其特征在于，所述通信设备为终端设备；所述方法还包括：9. The method according to any one of claims 1-9, wherein the communication device is a terminal device; the method further comprises:
    所述通信设备接收指示信息，所述指示信息用于指示所述一个时间单元中的所述至少一组孤儿符号的使用方式。The communication device receives instruction information, where the instruction information is used to indicate a usage mode of the at least one group of orphan symbols in the one time unit.
  12. 如权利要求11所述的方法，其特征在于，所述指示信息为下行控制信息DCI或高层信令。The method according to claim 11, wherein the indication information is downlink control information DCI or high layer signaling.
  13. 一种数据传输的装置，其特征在于，包括：A data transmission device, characterized in that it comprises:
    处理单元，用于确定一个时间单元中的至少一组孤儿符号的使用方式，所述使用方式为传输数据、传输解调参考信号DMRS、传输混合自动重传请求HARQ或不进行传输中的一种，一组孤儿符号为一组符号，所述一组符号的数量小于一次传输的符号的数量；The processing unit is used to determine the use mode of at least one group of orphan symbols in a time unit, the use mode being one of transmitting data, transmitting demodulation reference signal DMRS, transmitting hybrid automatic repeat request HARQ, or not transmitting , A group of orphan symbols is a group of symbols, the number of which is less than the number of symbols transmitted at one time;
    通信单元，用于根据所述使用方式，在所述一个时间单元上进行数据传输。The communication unit is configured to perform data transmission on the one time unit according to the usage mode.
  14. 如权利要求13所述的装置，其特征在于，所述一个时间单元中存在至少两组孤儿符号时，所述通信设备确定的所述至少两组孤儿符号的使用方式相同或不同。The apparatus according to claim 13, wherein when there are at least two groups of orphan symbols in the one time unit, the use modes of the at least two groups of orphan symbols determined by the communication device are the same or different.
  15. 如权利要求13或14所述的装置，其特征在于，所述处理单元，具体用于：The device according to claim 13 or 14, wherein the processing unit is specifically configured to:
    针对所述至少一组孤儿符号中的任意一组孤儿符号，根据所述一组孤儿符号的数量、一次传输的符号的数量和门限值，确定所述时间单元中的所述一组孤儿符号的使用方式。For any group of orphan symbols in the at least one group of orphan symbols, determine the group of orphan symbols in the time unit according to the number of the group of orphan symbols, the number of symbols transmitted at one time, and the threshold value How to use it.
  16. 如权利要求15所述的装置，其特征在于，所述传输数据包括第一传输数据和第二传输数据；所述处理单元，具体用于：The apparatus according to claim 15, wherein the transmission data includes first transmission data and second transmission data; and the processing unit is specifically configured to:
    确定所述一组孤儿符号的数量与所述一次传输的符号的数量的比值大于所述门限值，则确定所述使用方式为所述第一传输数据，所述第一传输数据是指：所述一组孤儿符号传输的数据量与所述一次传输的符号传输的数据量相同；或者，It is determined that the ratio of the number of the group of orphan symbols to the number of symbols transmitted at one time is greater than the threshold value, and then it is determined that the usage mode is the first transmission data, and the first transmission data refers to: The amount of data transmitted by the group of orphan symbols is the same as the amount of data transmitted by the symbols transmitted at one time; or,
    确定所述一组孤儿符号的数量与所述一次传输的符号的数量的比值小于或等于所述门限值，则确定所述使用方式为所述第二传输数据、或传输DMRS、或传输HARQ、或不进行传输，所述第二传输数据是指：所述一组孤儿符号传输的数据为所述一次传输的符号传输的数据中的部分数据。It is determined that the ratio of the number of the group of orphan symbols to the number of symbols transmitted at one time is less than or equal to the threshold value, and then it is determined that the usage mode is the second transmission data, or DMRS transmission, or HARQ transmission , Or no transmission, the second transmission data means that the data transmitted by the group of orphan symbols is part of the data transmitted by the symbols of the one transmission.
  17. 如权利要求16所述的装置，其特征在于，所述使用方式为所述第一传输数据；The device according to claim 16, wherein the use mode is the first transmission data;
    所述通信单元，具体用于使用第一传输功率在所述一个时间单元的所述一组孤儿符号上进行数据传输，以及使用所述第二传输功率在所述一个时间单元的一次传输的符号上进行数据传输，所述第一传输功率大于所述第二传输功率。The communication unit is specifically configured to use the first transmission power to perform data transmission on the group of orphan symbols in the one time unit, and to use the second transmission power to transmit symbols at one time in the one time unit Data transmission on the computer, and the first transmission power is greater than the second transmission power.
  18. 如权利要求13-15任一所述的装置，其特征在于，所述一组孤儿符号的使用方式为传输DMRS，所述一组孤儿符号中的至少一个孤儿符号与所述时间单元上距离所述至少一个孤儿符号最近的一次传输的符号对应。The apparatus according to any one of claims 13-15, wherein the use mode of the group of orphan symbols is to transmit DMRS, and at least one orphan symbol in the group of orphan symbols is at a distance from the time unit. The at least one orphan symbol corresponds to the most recently transmitted symbol.
  19. 如权利要求13-15任一所述的装置，其特征在于，所述一组孤儿符号的使用方式为传输DMRS，所述一组孤儿符号中的至少一个孤儿符号与所述时间单元上的至少两个一次传输的符号对应。The apparatus according to any one of claims 13-15, wherein the use mode of the group of orphan symbols is to transmit DMRS, and at least one orphan symbol in the group of orphan symbols is related to at least one of the orphan symbols in the time unit. The two symbols transmitted at one time correspond.
  20. 如权利要求18或19所述的装置，其特征在于，所述一组孤儿符号中的至少一个孤儿符号与所述至少一个孤儿符号对应的一次传输的符号在时间上连续，且所述至少一个孤儿符号时序在先。The device according to claim 18 or 19, wherein at least one orphan symbol in the set of orphan symbols and the symbol of one transmission corresponding to the at least one orphan symbol are continuous in time, and the at least one orphan symbol Orphan symbol sequence comes first.
  21. 如权利要求13-15任一所述的装置，其特征在于，所述一组孤儿符号的数量为两个或两个以上，所述使用方式为第三传输数据，所述第三传输数据是指：所述一组孤儿符号按照均分准则分别划分至所述一个时间单元中的不同的一次传输的符号构成新的一次传输的符号。The device according to any one of claims 13-15, wherein the number of the group of orphan symbols is two or more, the use mode is third transmission data, and the third transmission data is Means: the group of orphan symbols is divided into different symbols of one transmission in the one time unit according to the equal division rule to form a new symbol of one transmission.
  22. 如权利要求13-21任一所述的装置，其特征在于，所述装置为终端设备、或网络设备。The device according to any one of claims 13-21, wherein the device is a terminal device or a network device.
  23. 如权利要求13-21任一所述的装置，其特征在于，所述装置为终端设备；所述通信单元，还用于接收指示信息，所述指示信息用于指示所述一个时间单元中的所述至少一组孤儿符号的使用方式。The device according to any one of claims 13-21, wherein the device is a terminal device; the communication unit is further used to receive instruction information, and the instruction information is used to indicate the information in the one time unit The usage mode of the at least one group of orphan symbols.
  24. 如权利要求23所述的装置，其特征在于，所述指示信息为下行控制信息DCI或高层信令。The apparatus according to claim 23, wherein the indication information is downlink control information DCI or high-layer signaling.
  25. 一种数据传输的装置，其特征在于，包括处理器，用于与存储器相连，调用所述存储器中存储的程序，以执行如权利要求1-12任一所述的方法。A device for data transmission, comprising a processor, which is used to connect with a memory and call a program stored in the memory to execute the method according to any one of claims 1-12.
  26. 一种存储介质，其上存储有计算机程序或指令，其特征在于，所述计算机程序或指令被执行时使得处理器执行如权利要求1-12任一所述的方法。A storage medium having a computer program or instruction stored thereon, wherein the computer program or instruction is executed to cause a processor to execute the method according to any one of claims 1-12.
  27. 一种芯片***，其特征在于，包括：处理器，用于执行如权利要求1-12任一所述的方法。A chip system, comprising: a processor, configured to execute the method according to any one of claims 1-12.
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