WO2021226794A1 - Procédé de transmission de données et dispositif associé - Google Patents

Procédé de transmission de données et dispositif associé Download PDF

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Publication number
WO2021226794A1
WO2021226794A1 PCT/CN2020/089626 CN2020089626W WO2021226794A1 WO 2021226794 A1 WO2021226794 A1 WO 2021226794A1 CN 2020089626 W CN2020089626 W CN 2020089626W WO 2021226794 A1 WO2021226794 A1 WO 2021226794A1
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WIPO (PCT)
Prior art keywords
value
maximum
terminal
transmission
physical channel
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PCT/CN2020/089626
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English (en)
Chinese (zh)
Inventor
林亚男
徐婧
梁彬
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202080099708.0A priority Critical patent/CN115380595A/zh
Priority to PCT/CN2020/089626 priority patent/WO2021226794A1/fr
Publication of WO2021226794A1 publication Critical patent/WO2021226794A1/fr

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    • 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 communication technology, and in particular to a data transmission method and related devices.
  • the 17th version of the new wireless NR system communication protocol Rel-17 proposes Dynamic Spectrum Sharing (DSS), which supports the use of secondary carriers to schedule other carriers (including the primary carrier). Further consider using one Downlink Control Information (DCI) to schedule data transmission on multiple carriers.
  • DCI Downlink Control Information
  • One implementation method is that one DCI schedules a physical downlink shared channel PDSCH/physical uplink shared channel PUSCH.
  • the PDSCH/PUSCH occupies resources on multiple carriers for simultaneous transmission.
  • the DCI schedules carrier 1 and carrier 2 at the same time. Transmit signals carried on the PDSCH.
  • TBS Transport Block size
  • the embodiments of the present application provide a data transmission method and related devices, so as to realize that a terminal with existing capabilities can support the use of multiple carriers to transmit physical channels.
  • an embodiment of the present application provides a data transmission method, including:
  • the terminal transmits the first physical channel through multiple carriers, wherein the total amount of frequency domain resources allocated to the first physical channel on the multiple carriers does not exceed the first value and/or the first physical channel carried
  • the transmission block size TBS does not exceed a second value
  • the first value is used to indicate the maximum number of frequency domain resources occupied by the terminal for transmitting a physical channel within a carrier
  • the second value is used to indicate that the terminal is The maximum value of TBS that a physical channel can carry in one carrier.
  • an embodiment of the present application provides a data transmission method, including:
  • the network device transmits the first physical channel through multiple carriers, wherein the total amount of frequency domain resources allocated to the first physical channel on the multiple carriers does not exceed a first value and/or the first physical channel bears
  • the transmission block size TBS does not exceed a second value
  • the first value is used to indicate the maximum number of frequency domain resources occupied by the terminal transmitting a physical channel within a carrier
  • the second value is used to indicate that the terminal is in a
  • an embodiment of the present application provides a data transmission device, which is applied to a terminal, and includes:
  • the transmission unit is configured to transmit the first physical channel through multiple carriers, wherein the total amount of frequency domain resources allocated to the first physical channel on the multiple carriers does not exceed a first value and/or the first physical channel.
  • the transport block size TBS carried by the physical channel does not exceed a second value, where the first value is used to indicate the maximum number of frequency domain resources occupied by the terminal for transmitting one physical channel within a carrier, and the second value is used to indicate The terminal transmits the maximum value of TBS that can be carried by one physical channel in one carrier.
  • an embodiment of the present application provides a data transmission device, which is applied to a network device, and includes:
  • the transmission unit is configured to transmit the first physical channel through multiple carriers, wherein the total amount of frequency domain resources allocated to the first physical channel on the multiple carriers does not exceed a first value and/or the first physical channel.
  • the transport block size TBS carried by the physical channel does not exceed a second value, and the first value is used to indicate the maximum number of frequency domain resources occupied by the terminal transmitting a physical channel in a carrier, and the second value is used to indicate the The terminal transmits the maximum value of TBS that a physical channel can carry in a carrier.
  • an embodiment of the present application provides a terminal, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and are configured by The processor executes, and the program includes instructions for executing the steps in any method of the first aspect of the embodiments of the present application.
  • an embodiment of the present application provides a network device, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured by The processor executes, and the program includes instructions for executing the steps in any method in the second aspect of the embodiments of the present application.
  • an embodiment of the present application provides a chip, including a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes the first aspect or the second aspect of the embodiment of the present application.
  • an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the For example, part or all of the steps described in any method of the first aspect or the second aspect.
  • an embodiment of the present application provides a computer program, wherein the computer program is operable to cause a computer to execute some or all of the steps described in any method of the first aspect or the second aspect of the embodiment of the present application .
  • the computer program may be a software installation package.
  • the first physical channel is transmitted through multiple carriers, where the total amount of frequency domain resources allocated to the first physical channel on the multiple carriers does not exceed the first value and/or the first physical channel.
  • the transmission block size TBS carried by the channel does not exceed the second value.
  • the first value is used to indicate the maximum number of frequency domain resources occupied by the terminal transmitting a physical channel in a carrier
  • the second value is used to instruct the terminal to transmit one physical channel in a carrier.
  • FIG. 1A is a schematic diagram of a multi-carrier transmission physical channel provided by an embodiment of the present application.
  • FIG. 1B is a system architecture diagram of an exemplary communication system provided by an embodiment of the present application.
  • FIG. 2A is a schematic flowchart of a data transmission method provided by an embodiment of the present application.
  • 2B is a schematic diagram of a method for determining the value of the first quantity provided by an embodiment of the present application
  • 2C is a schematic diagram of another method for determining the value of the first quantity provided by an embodiment of the present application.
  • 2D is a schematic diagram of another method for determining the value of the first quantity provided by an embodiment of the present application.
  • 2E is a schematic diagram of another method for determining the value of the first quantity provided by an embodiment of the present application.
  • 2F is a schematic diagram of another method for determining the value of the first quantity according to an embodiment of the present application.
  • 2G is a schematic diagram of another method for determining the value of the first quantity provided by an embodiment of the present application.
  • 2H is a schematic diagram of another method for determining the value of the first quantity provided by an embodiment of the present application.
  • FIG. 2I is a schematic diagram of another method for determining the value of the first quantity provided by an embodiment of the present application.
  • 2J is a schematic diagram of another method for determining the value of the first quantity provided by an embodiment of the present application.
  • 2K is a schematic diagram of another method for determining the value of the first quantity provided by an embodiment of the present application.
  • 2L is a schematic diagram of another method for determining the value of the first quantity provided by an embodiment of the present application.
  • 2M is a schematic diagram of another method for determining the value of the first quantity provided by an embodiment of the present application.
  • Fig. 3 is a block diagram of functional units of a data transmission device provided by an embodiment of the present application.
  • FIG. 4 is a block diagram of the functional unit composition of another data transmission device provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a data transmission device provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of another data transmission device provided by an embodiment of the present application.
  • Fig. 8 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the technical solutions of the embodiments of the present application can be applied to an exemplary communication system 100 as shown in FIG. 1B.
  • the exemplary communication system 100 includes a terminal 110 and a network device 120, and the terminal 110 is in communication connection with the network device 120.
  • the example communication system 100 may be, for example, a global system of mobile communication (GSM) system, a code division multiple access (Code Division Multiple Access, CDMA) system, and a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • New Radio, NR New Radio
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • the communication system in the embodiments of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) deployment.
  • CA Carrier Aggregation
  • DC dual connectivity
  • SA standalone
  • the embodiment of the application does not limit the applied frequency spectrum.
  • the embodiments of this application can be applied to licensed spectrum or unlicensed spectrum.
  • the terminal 110 in the embodiment of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or User device.
  • the terminal can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, relay devices, in-vehicle devices, wearable devices, terminals in the future 5G network, or public land mobile network (PLMN) that will evolve in the future This is not limited in this embodiment of the application.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • PLMN public land mobile network
  • the network device 120 in the embodiment of the present application may be a device used to communicate with a terminal.
  • the network device may be an evolved NodeB (eNB or eNodeB) in an LTE system, or a cloud radio access network (cloud wireless access network).
  • the radio access network (CRAN) scenario of the wireless controller, or the network device can be a relay device, an access point, an in-vehicle device, a wearable device, and a network device in the future 5G network or a network in the future evolved PLMN network Equipment, one or a group of antenna panels (including multiple antenna panels) of the base station in the 5G system, or, it can also be a network node that constitutes a gNB or transmission point, such as a baseband unit (BBU), or distributed A unit (distributed unit, DU), etc., is not limited in the embodiment of the present application.
  • BBU baseband unit
  • DU distributed A unit
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • the CU implements some of the functions of the gNB, and the DU implements some of the functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing the physical layer protocol and real-time services, and realizes the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , Or, sent by DU+AAU.
  • the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in an access network (radio access network, RAN), and the CU can also be divided into network equipment in a core network (core network, CN), which is not limited in this application.
  • the terminal 110 or the network device 120 includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system can be any one or more computer operating systems that implement business processing through processes, for example, Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems, or windows operating systems.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the application do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided in accordance with the embodiments of the application.
  • the execution subject of the method provided in the embodiment of the present application may be a terminal, or a functional module in the terminal that can call and execute the program.
  • the associated technologies involved in the embodiments of this application mainly include carrier aggregation and calculation of transmission block size, which are briefly introduced below.
  • Carrier aggregation Carrier Aggregation, CA
  • the carrier aggregation technology can enable the terminal to use multiple component carriers (CC) to send and receive data at the same time, increase the data transmission rate, and improve the efficiency of the system.
  • the fifth-generation mobile communication technology (5th generation mobile networks or 5th generation wireless systems, 5th-Generation, 5G) system supports a larger component carrier bandwidth (for example, a frequency band less than 6GHZ can support a maximum component carrier bandwidth of 80MHz).
  • 3rd Generation Partnership Project 3rd Generation Partnership Project, 3GPP
  • Table 1 shows the maximum carrier bandwidth supported in different frequency bands in some NR systems. For the same band, when using different Subcarrier Spacing (SCS), the indicated maximum bandwidth is different.
  • SCS Subcarrier Spacing
  • Table 2 shows the number of physical resource blocks included when the carrier corresponds to different bandwidths.
  • a physical channel PDSCH/PUSCH in a carrier aggregation system could only be transmitted through one carrier.
  • One downlink control signaling DCI can only schedule one physical channel. That is, if the terminal aggregates N carriers, the terminal will receive N DCIs, and the N DCIs are respectively used to schedule N physical channels simultaneously transmitted on the N carriers.
  • the PDSCH transmitted in the target downlink carrier carries its corresponding DCI for transmission on the target downlink carrier.
  • the PUSCH transmitted in the target uplink carrier carries its corresponding DCI and is transmitted in the downlink carrier paired with the target uplink carrier.
  • the DCI and the corresponding PDSCH are transmitted in different carriers.
  • DCI is not transmitted in the downlink carrier paired with the uplink carrier where the corresponding PUSCH is located.
  • Cross-carrier scheduling is limited to that for one secondary carrier, its DCI can be transmitted on other secondary carriers or primary carriers, but the DCI corresponding to the primary carrier can only be transmitted on the primary carrier. That is, the secondary carrier can be scheduled by other carriers, but the primary carrier cannot be scheduled by other carriers.
  • the method for determining the transport block size TBS carried in a physical channel PDSCH/PUSCH in the 15th version of the NR system Rel-15 is as follows:
  • N RE min(156,N' RE ) ⁇ n PRB
  • n PRB is the number of physical resource blocks allocated for the physical channel.
  • R is the coding rate of the physical channel
  • Q m is the modulation order of the physical channel
  • v is the number of layers of the physical channel.
  • TBS is finally determined according to the intermediate variable N info.
  • FIG. 2A is a schematic flowchart of a data transmission method provided by an embodiment of the present application, which is applied to the exemplary communication system shown in FIG. 1B. As shown in the figure, the method includes:
  • Step 201 The terminal transmits a first physical channel through multiple carriers, where the total amount of frequency domain resources allocated to the first physical channel on the multiple carriers does not exceed a first value and/or the first physical channel.
  • the transmission block size TBS carried by the channel does not exceed a second value, and the first value is used to indicate the maximum number of frequency domain resources occupied by the terminal for transmitting a physical channel within a carrier, and the second value is used to indicate all
  • the terminal transmits the maximum value of TBS that can be carried by a physical channel in a carrier.
  • the first physical channel includes PDSCH or PUSCH.
  • Carriers are also called serving cells in the protocol.
  • the one carrier refers to any one of the multiple carriers.
  • the content transmitted on each of the multiple carriers may be different, that is, instead of transmitting one physical channel through repeated transmission on different carriers, the resources on multiple carriers are used to jointly transmit one physical channel. .
  • the content transmitted on each of the multiple carriers may also be the same.
  • the frequency domain resources occupied by the terminal for transmitting one physical channel in one carrier may be the transmission bandwidth or the number of resource block RBs.
  • the method further includes: the terminal receives first downlink control information DCI from a network device, where the first DCI is used to schedule the first physical channel.
  • the method further includes: the terminal sending capability information, where the capability information includes the maximum transmission bandwidth or maximum transmission bandwidth supported by the terminal for data transmission using at least one subcarrier interval in at least one frequency band.
  • the at least one frequency band may include, for example, NR frequency bands n1, n2, n3, n5, n7, n8, etc.
  • at least one subcarrier interval corresponding to NR frequency band n1 includes 15kHz, 30kHz, 60kHz, and NR frequency band n2
  • the corresponding at least one sub-carrier interval includes 15 kHz, 30 kHz, 60 kHz, etc., that is, at least one frequency band and at least one sub-carrier interval are determined by the configuration of the current system.
  • Step 202 The network device transmits the first physical channel through multiple carriers, wherein the total amount of frequency domain resources allocated to the first physical channel on the multiple carriers does not exceed a first value and/or the first physical channel.
  • the transport block size TBS carried by the physical channel does not exceed a second value, and the first value is used to indicate the maximum number of frequency domain resources occupied by the terminal transmitting a physical channel in a carrier, and the second value is used to indicate the The terminal transmits the maximum value of TBS that a physical channel can carry in a carrier.
  • the network device receives the first signal carried by the first physical channel through multiple carriers. If the network device transmits the second signal carried by the first physical channel through multiple carriers, the terminal receives the second signal carried by the first physical channel through multiple carriers.
  • the method further includes: the network device sends first downlink control information DCI to the terminal, where the first DCI is used to schedule the first physical channel.
  • the method further includes: the network device receives capability information, where the capability information includes the maximum transmission bandwidth supported by the terminal for data transmission using at least one subcarrier interval in at least one frequency band or Maximum number of RBs or maximum TBS.
  • the first physical channel is transmitted through multiple carriers, where the total amount of frequency domain resources allocated to the first physical channel on the multiple carriers does not exceed the first value and/or the first physical channel
  • the bearer transport block size TBS does not exceed the second value.
  • the first value is used to indicate the maximum number of frequency domain resources occupied by the terminal to transmit a physical channel in a carrier
  • the second value is used to instruct the terminal to transmit a physical channel in a carrier.
  • the maximum value of TBS that the channel can carry In this way, it is possible to support the transmission mode of using multiple carriers to transmit one physical channel without the need to enhance the processing capability of the terminal, thereby improving the system efficiency.
  • the first value is determined according to the frequency band of the multiple carriers, the subcarrier spacing, and the capability information of the terminal.
  • the capability information of the terminal may include transmission conditions and the maximum transmission supported by the terminal
  • the mapping relationship between bandwidths, and the transmission condition means that the terminal uses one subcarrier interval of the frequency band for data transmission in a frequency band.
  • the terminal performs the following operation A for each of the multiple carriers to obtain multiple maximum transmission bandwidths corresponding to the multiple carriers: A.
  • the terminal determines the transmission conditions of the currently processed carrier, and queries the capabilities
  • the mapping relationship between the transmission conditions in the information and the maximum transmission bandwidth supported by the terminal is used to obtain the maximum transmission bandwidth of the currently processed carrier; the terminal determines that the maximum transmission bandwidth with the smallest value among the multiple maximum transmission bandwidths is ⁇ Said the first value.
  • the capability information of the terminal may include transmission conditions and the maximum number of RBs supported by the terminal The mapping relationship between.
  • the terminal performs the following operation B for each of the multiple carriers to obtain multiple maximum RB numbers corresponding to the multiple carriers: B.
  • the terminal determines the transmission conditions of the currently processed carrier, and queries the capabilities
  • the mapping relationship between the transmission condition in the information and the maximum number of RBs supported by the terminal is used to obtain the maximum number of RBs of the currently processed carrier; the terminal determines that the maximum number of RBs with the smallest value among the plurality of maximum RB numbers is ⁇ Said the first value.
  • the first value can be determined according to the frequency band of the multiple carriers, the subcarrier spacing, and the capability information of the terminal, so that the capability of the terminal can be adapted to the multi-carrier transmission mode, and the system efficiency is improved.
  • the first value is the maximum transmission bandwidth with the smallest value among the plurality of maximum transmission bandwidths, wherein one of the plurality of maximum transmission bandwidths is the maximum transmission bandwidth of the terminal under the first transmission condition
  • the maximum transmission bandwidth supported, the first transmission condition refers to the first subcarrier interval for data transmission in the first frequency band, and one of the multiple carriers belongs to the first frequency band and adopts the first subcarrier interval. Subcarrier spacing.
  • the maximum transmission bandwidth supported by the terminal under the first transmission condition is less than or equal to the maximum transmission bandwidth supported by the system under the first transmission condition.
  • Combining Table 1 and Table 2 can know the specific configuration of the maximum transmission bandwidth supported by the terminal under different transmission conditions, and the specific configuration can be determined by the capability information including the mapping relationship between the transmission conditions and the maximum transmission bandwidth supported by the terminal Make it happen.
  • the terminal can also obtain the configuration of the local device by querying Table 1 and Table 2, which is not uniquely limited here.
  • the terminal is configured with two carriers, namely carrier 1 and carrier 2, and both carrier 1 and carrier 2 belong to NR band n41, and carrier 1 and carrier 2 use subcarrier spacing of 15kHz.
  • the two transmission conditions constrained by carrier 1 and carrier 2 are both in NR band n41 using 15kHz subcarrier spacing for data transmission, and the terminal queries capability information (this capability information includes the transmission conditions and the maximum transmission bandwidth supported by the terminal). It can be seen that the maximum transmission bandwidth supported by the terminal under the two transmission conditions is 50 MHz, so the first value is the 50 MHz bandwidth.
  • the terminal is configured with two carriers, namely carrier 1 and carrier 2, and carrier 1 belongs to NR band n25, and the subcarrier spacing is 15kHz, and carrier 2 belongs to NR band n84.
  • the subcarrier spacing is 15kHz
  • the transmission condition 1 restricted by carrier 1 is to use 15kHz subcarrier spacing in NR band n25 for data transmission
  • the transmission condition 2 restricted by carrier 2 is to use 15kHz subcarrier spacing in NR band n84
  • Table 1 and Table 2 that the maximum transmission bandwidth supported by the terminal under transmission condition 1 is 20 MHz, and the maximum transmission bandwidth supported under transmission condition 2 is 20 MHz, so the first value is 20 MHz bandwidth.
  • the terminal is configured with two carriers, namely carrier 1 and carrier 2, and carrier 1 belongs to NR band n25, and the subcarrier spacing is 15kHz, and carrier 2 belongs to NR band n84.
  • the subcarrier spacing is 15kHz
  • the transmission condition 1 restricted by carrier 1 is to use 15kHz subcarrier spacing in NR band n25 for data transmission
  • the transmission condition 2 restricted by carrier 2 is to use 15kHz subcarrier spacing in NR band n84
  • the terminal queries the capability information (the capability information includes the mapping relationship between the transmission conditions and the maximum transmission bandwidth supported by the terminal). It can be seen that the maximum transmission bandwidth supported by the terminal under transmission condition 1 is 20 MHz, and under transmission condition 2 The maximum transmission bandwidth supported below is 20MHz, so the first value is 20MHz bandwidth.
  • determining the maximum transmission bandwidth has no substantial effect, and can be converted to determining the maximum number of RBs supported by the terminal.
  • the system supports adapting the terminal capability to the multi-carrier transmission mode supported by the system through the maximum transmission bandwidth.
  • the first value is the maximum number of RBs with the smallest value among the plurality of maximum resource block RB numbers, where one of the plurality of maximum RB numbers is the maximum number of RBs in the first transmission of the terminal.
  • the maximum number of RBs supported under the condition, the first transmission condition refers to the first subcarrier interval for data transmission in the first frequency band, and one of the multiple carriers belongs to the first frequency band and adopts the The first subcarrier spacing.
  • the maximum number of RBs supported by the terminal under the first transmission condition is less than or equal to the maximum number of RBs supported by the system under the first transmission condition.
  • the maximum number of RBs supported by the terminal under the first transmission condition is determined according to the maximum transmission bandwidth supported by the terminal under the first transmission condition and the configuration information of the number of RBs of the terminal.
  • the maximum transmission bandwidth supported by the terminal under the first transmission condition is indicated by the capability information of the terminal, and the configuration information of the number of RBs of the terminal includes the terminal supported under the first transmission condition.
  • the specific implementation form of the configuration information of the number of RBs of the terminal may be as shown in Table 3 above.
  • the specific configuration of the maximum number of RBs supported by the terminal under different transmission conditions can be known, and the configuration can be specifically determined by including the transmission conditions and the maximum RB supported by the terminal.
  • the capability information of the quantity mapping relationship is realized.
  • the terminal can also obtain the configuration of the local device by querying Table 1, Table 2, and Table 3, which is not uniquely limited here.
  • the terminal is configured with two carriers, namely carrier 1 and carrier 2, and both carrier 1 and carrier 2 belong to NR band n41, and carrier 1 and carrier 2 use sub-carrier spacing of 15 kHz.
  • the two transmission conditions constrained by carrier 1 and carrier 2 are both in NR band n41 using 15kHz subcarrier spacing for data transmission, and the terminal queries capability information (this capability information includes the mapping between the transmission conditions and the maximum number of RBs supported by the terminal) It can be seen that the maximum number of RBs supported by the terminal under the two transmission conditions are both 270, so the first value is 270.
  • the terminal is configured with two carriers, namely carrier 1 and carrier 2, and carrier 1 belongs to NR band n25, and the subcarrier spacing is 15kHz, and carrier 2 belongs to NR band n84.
  • the carrier interval is 15kHz
  • the transmission condition 1 restricted by carrier 1 is to use 15kHz subcarrier interval for data transmission in NR band n25
  • the transmission condition 2 restricted by carrier 2 is to use 15kHz subcarrier interval for NR band n84.
  • Data transmission as can be seen from Table 1 and Table 2, the maximum transmission bandwidth supported by the terminal under transmission condition 1 is 20MHz, and the maximum transmission bandwidth supported under transmission condition 2 is 20MHz. From Table 3, it can be seen that the terminal under transmission condition 1
  • the maximum number of RBs supported by the terminal is 106
  • the maximum number of RBs supported by the terminal under transmission condition 2 is 106, so the first value is 106.
  • the terminal is configured with two carriers, namely carrier 1 and carrier 2, and carrier 1 belongs to NR band n25, and the sub-carrier spacing is 15kHz, and carrier 2 belongs to NR band n84.
  • the carrier interval is 15kHz
  • the transmission condition 1 restricted by carrier 1 is to use 15kHz subcarrier interval for data transmission in NR band n25
  • the transmission condition 2 restricted by carrier 2 is to use 15kHz subcarrier interval for NR band n84.
  • the terminal queries the capability information (the capability information contains the mapping relationship between the transmission conditions and the maximum number of RBs supported by the terminal). It can be seen that the maximum number of RBs supported by the terminal under transmission condition 1 is 106, and the terminal under transmission condition 2 The maximum number of RBs supported is 106, so the first value is 106.
  • the terminal is configured with two carriers, namely carrier 1 and carrier 2, and carrier 1 belongs to NR band n40, and the subcarrier spacing is 15kHz, and carrier 2 belongs to NR band n40.
  • the carrier interval is 30kHz
  • the transmission condition 1 restricted by carrier 1 is to use 15kHz subcarrier interval for data transmission in NR band n40
  • the transmission condition 2 restricted by carrier 2 is to use 30kHz subcarrier interval for NR band n40.
  • Data transmission as can be seen from Table 1 and Table 2
  • the maximum transmission bandwidth supported by the terminal under transmission condition 1 is 50MHz
  • the maximum transmission bandwidth supported under transmission condition 2 is 80MHz. From Table 3, it can be seen that the terminal under transmission condition 1
  • the maximum number of RBs supported by the terminal is 270
  • the maximum number of RBs supported by the terminal under transmission condition 2 is 217
  • the first value is 217.
  • the terminal is configured with two carriers, namely carrier 1 and carrier 2, and carrier 1 belongs to NR band n40, and the subcarrier spacing is 15kHz, and carrier 2 belongs to NR band n40.
  • the carrier interval is 30kHz
  • the transmission condition 1 restricted by carrier 1 is to use 15kHz subcarrier interval for data transmission in NR band n40
  • the transmission condition 2 restricted by carrier 2 is to use 30kHz subcarrier interval for NR band n40.
  • the terminal queries capability information (the capability information contains the mapping relationship between the transmission conditions and the maximum number of RBs supported by the terminal). It can be seen that the maximum number of RBs supported by the terminal under transmission condition 1 is 270, and the terminal under transmission condition 2 The maximum number of RBs supported is 217, and the first value is 217.
  • the terminal is configured with two carriers, namely carrier 1 and carrier 2, and carrier 1 belongs to NR band n40, and the subcarrier spacing is 15kHz, and carrier 2 belongs to NR band n41, and subcarriers are used.
  • the carrier interval is 30kHz
  • the transmission condition 1 restricted by carrier 1 is to use 15kHz subcarrier interval for data transmission in NR band n40
  • the transmission condition 2 restricted by carrier 2 is to use 30kHz subcarrier interval for NR band n41.
  • the maximum transmission bandwidth supported by the terminal under transmission condition 1 is 50 MHz
  • the maximum transmission bandwidth supported under transmission condition 2 is 100 MHz. From Table 3, it can be seen that the terminal under transmission condition 1
  • the maximum number of RBs supported by the terminal is 270
  • the maximum number of RBs supported by the terminal under transmission condition 2 is 273, and the first value is 270.
  • the terminal is configured with two carriers, namely carrier 1 and carrier 2, and carrier 1 belongs to NR band n40, and the sub-carrier spacing is 15kHz, and carrier 2 belongs to NR band n41.
  • the carrier interval is 30kHz
  • the transmission condition 1 restricted by carrier 1 is to use 15kHz subcarrier interval for data transmission in NR band n40
  • the transmission condition 2 restricted by carrier 2 is to use 30kHz subcarrier interval for NR band n41.
  • the terminal queries capability information (the capability information contains the mapping relationship between the transmission conditions and the maximum number of RBs supported by the terminal). It can be seen that the maximum number of RBs supported by the terminal under transmission condition 1 is 270, and the terminal under transmission condition 2 The maximum number of RBs supported is 273, and the first value is 273.
  • the system supports adapting terminal capabilities to the multi-carrier transmission mode supported by the system through the maximum number of RBs.
  • the second value is determined according to frequency bands of the multiple carriers, subcarrier spacing, and capability information of the terminal.
  • the capability information of the terminal may include a mapping relationship between a transmission condition and the maximum TBS supported by the terminal.
  • the transmission condition means that the terminal uses a subcarrier interval of the frequency band for data transmission in a frequency band.
  • the capability information of the terminal may also include a mapping relationship between transmission conditions and the maximum transmission bandwidth or the maximum number of RBs supported by the terminal.
  • the second value is the largest TBS with the smallest value among the multiple largest TBSs, where one largest TBS in the multiple largest TBSs is the largest supported by the terminal under the first transmission condition.
  • the first transmission condition refers to using a first subcarrier interval for data transmission in a first frequency band, and one of the multiple carriers belongs to the first frequency band and adopts the first subcarrier interval.
  • the terminal performs the following operation C for each of the multiple carriers to obtain multiple maximum TBSs corresponding to the multiple carriers; C.
  • the terminal determines the transmission conditions of the currently processed carrier, and queries the transmission conditions and the transmission conditions in the capability information.
  • the mapping relationship between the maximum TBS supported by the terminal obtains the maximum TBS of the currently processed carrier; the terminal determines that the maximum transmission bandwidth with the smallest value among the plurality of maximum TBSs is the first value.
  • the maximum TBS supported by the terminal under the first transmission condition is determined according to the maximum transmission bandwidth supported by the terminal under the first transmission condition; or, the terminal The maximum TBS supported under the first transmission condition is determined according to the maximum number of RBs supported by the terminal under the first transmission condition.
  • the terminal performs the following operation D for each of the multiple carriers to obtain multiple maximum TBSs corresponding to the multiple carriers; D.
  • the terminal determines the transmission conditions of the currently processed carrier, and queries the transmission conditions and the transmission conditions in the capability information.
  • the terminal determines that the maximum transmission bandwidth with the smallest value among the multiple maximum TBS is the first value.
  • the determining the maximum TBS of the currently processed carrier according to the maximum transmission bandwidth of the currently processed carrier may be: determining the number of resource units RE in a time slot according to the maximum transmission bandwidth of the currently processed carrier , Determining the intermediate variable according to the number of REs, and determining the maximum TBS of the currently processed carrier according to the intermediate variable.
  • the terminal performs the following operation E for each of the multiple carriers to obtain multiple maximum TBSs corresponding to the multiple carriers; E.
  • the terminal determines the transmission conditions of the currently processed carrier, and queries the transmission conditions and the transmission conditions in the capability information.
  • the terminal determines that the maximum transmission bandwidth with the smallest value among the multiple maximum TBS is the first value.
  • the determining the maximum TBS of the currently processed carrier according to the maximum transmission bandwidth of the currently processed carrier may be: determining the number of resource units RE in a time slot according to the maximum number of RBs of the currently processed carrier , Determining the intermediate variable according to the number of REs, and determining the maximum TBS of the currently processed carrier according to the intermediate variable.
  • the system supports adapting the terminal capabilities to the multi-carrier transmission mode supported by the system through the maximum TBS.
  • the second value is determined according to the first value.
  • the second value is determined according to the value of an intermediate variable, and the value of the intermediate variable is determined according to the first value.
  • the value of the intermediate variable is determined according to a third value, and the third value is determined according to the first value.
  • the value of the intermediate variable may be not greater than the third value, or may be greater than the third value, and there is no unique limitation here.
  • the first value is the maximum number of RBs with the smallest value among the multiple maximum numbers of RBs; one of the maximum number of RBs is the maximum number of RBs supported by the terminal under the first transmission condition
  • the first transmission condition refers to the first subcarrier interval for data transmission in the first frequency band, and one of the multiple carriers belongs to the first frequency band and uses the first subcarrier Interval;
  • the third value is the product of the first value and the fourth value, and the value of the fourth value is agreed upon by the protocol or configured by the base station.
  • the fourth value is 156.
  • the intermediate variable is one of the following:
  • N info min(N maxRE ,min(156,N' RE ) ⁇ n PRB ),
  • N info min(156 ⁇ N maxRB ,min(156,N' RE ) ⁇ n PRB ),
  • N info represents the intermediate variable
  • N maxRE represents the third value
  • N maxRB represents the first value, in Is the number of time-domain symbols occupied by the one physical channel, Is the number of time-domain symbols used to transmit demodulation reference signals in this slot, Configured by higher layer signaling or equal to 0,
  • n PRB is the number of physical resource blocks allocated by the physical channel
  • R represents the coding rate of the first physical channel
  • Q m represents the modulation order of the first physical channel
  • v represents the number of physical resource blocks allocated to the physical channel. The number of layers of the first physical channel.
  • the value of the intermediate variable N info is not greater than the third value N maxRE
  • the first value is the maximum number of RBs N maxRB
  • the third value N maxRE is determined according to the first value N maxRB
  • the specific calculation formula may be the following formula :
  • N info min(N maxRE ,min(156,N' RE ) ⁇ n PRB ) or,
  • N info min(156 ⁇ N maxRB ,min(156,N' RE ) ⁇ n PRB )
  • R represents the coding rate of the first physical channel
  • Q m represents the modulation order of the first physical channel
  • v represents the number of layers of the first physical channel.
  • the value of the intermediate variable N info is determined according to the third value N maxRE
  • the third value N maxRE is determined according to the first value N maxRB
  • the specific calculation formula may be the following formula:
  • N maxRE 156 ⁇ N maxRB
  • N RE min(156,N' RE ) ⁇ n PRB
  • N info min(N maxRE ,N RE ) ⁇ R ⁇ Q m ⁇ v or,
  • N RE min(156,N' RE ) ⁇ n PRB
  • N info min(156 ⁇ N maxRB ,N RE ) ⁇ R ⁇ Q m ⁇ v
  • n PRB is the number of physical resource blocks allocated by the physical channel
  • R represents the coding rate of the first physical channel
  • Q m represents the modulation order of the first physical channel
  • v represents the number of physical resource blocks allocated to the physical channel. The number of layers of the first physical channel.
  • the value of the intermediate variable N info is determined according to the third value N maxRE
  • the third value N maxRE is determined according to the first value N maxRB
  • the specific calculation formula may be the following formula:
  • N maxRE min(156,N' RE ) ⁇ N maxRB
  • N info min(N maxRE ,N RE ) ⁇ R ⁇ Q m ⁇ v or,
  • N info min(min(156,N' RE ) ⁇ N maxRB ,N RE ) ⁇ R ⁇ Q m ⁇ v
  • N RE min(156,N' RE ) ⁇ n PRB , in Is the number of time-domain symbols occupied by the one physical channel, Is the number of time-domain symbols used to transmit demodulation reference signals in this slot, Configured by higher layer signaling or equal to 0, n PRB is the number of physical resource blocks allocated by the physical channel, R represents the coding rate of the first physical channel, Q m represents the modulation order of the first physical channel, and v represents the number of physical resource blocks allocated to the physical channel. The number of layers of the first physical channel.
  • the system supports adapting the terminal capabilities to the multi-carrier transmission mode supported by the system through the maximum TBS.
  • the terminal and the network device include hardware structures and/or software modules corresponding to the respective functions.
  • the present application 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 beyond the scope of this application.
  • the embodiment of the present application may divide the terminal and the network device into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or in the form of software program modules. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • the embodiment of the present application provides a data transmission device, and the data transmission device may be a terminal. Specifically, the data transmission device is used to execute the steps performed by the terminal in the above data transmission method.
  • the data transmission device provided in the embodiment of the present application may include modules corresponding to corresponding steps.
  • the embodiment of the present application may divide the data transmission device into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 3 shows a possible structural schematic diagram of the data transmission device involved in the above-mentioned embodiment.
  • the data transmission device 3 includes a transmission unit 30,
  • the transmission unit 30 is configured to transmit a first physical channel through multiple carriers, wherein the total amount of frequency domain resources allocated to the first physical channel on the multiple carriers does not exceed the first value and/or the first physical channel
  • the transport block size TBS carried by a physical channel does not exceed a second value
  • the first value is used to indicate the maximum number of frequency domain resources occupied by the terminal transmitting a physical channel within a carrier
  • the second value is used for Instruct the terminal to transmit the maximum value of the TBS that can be carried by a physical channel within a carrier.
  • the first value is determined according to the frequency band of the multiple carriers, the subcarrier spacing, and the capability information of the terminal.
  • the first value is the maximum transmission bandwidth with the smallest value among the multiple maximum transmission bandwidths, where:
  • One of the multiple maximum transmission bandwidths is the maximum transmission bandwidth supported by the terminal under a first transmission condition, and the first transmission condition refers to data transmission using a first subcarrier interval in the first frequency band
  • One of the multiple carriers belongs to the first frequency band and adopts the first subcarrier interval.
  • the first value is the maximum number of RBs with the smallest value among the number of maximum resource block RBs, where:
  • One of the plurality of maximum RB numbers is the maximum number of RBs supported by the terminal under a first transmission condition, and the first transmission condition refers to data transmission using a first subcarrier interval in the first frequency band
  • One of the multiple carriers belongs to the first frequency band and adopts the first subcarrier interval.
  • the maximum number of RBs supported by the terminal under the first transmission condition is determined according to the maximum transmission bandwidth supported by the terminal under the first transmission condition and the configuration information of the number of RBs of the terminal.
  • the maximum transmission bandwidth supported by the terminal under the first transmission condition is indicated by the capability information of the terminal, and the configuration information of the number of RBs of the terminal includes the terminal supported under the first transmission condition.
  • the second value is determined according to frequency bands of the multiple carriers, subcarrier spacing, and capability information of the terminal.
  • the second value is the largest TBS with the smallest value among the multiple largest TBSs, where:
  • One of the plurality of maximum TBS is the maximum TBS supported by the terminal under a first transmission condition, and the first transmission condition refers to data transmission using a first subcarrier interval in the first frequency band, and One of the multiple carriers belongs to the first frequency band and adopts the first subcarrier interval.
  • the maximum TBS supported by the terminal under the first transmission condition is determined according to the maximum transmission bandwidth supported by the terminal under the first transmission condition; or,
  • the maximum TBS supported by the terminal under the first transmission condition is determined according to the maximum number of RBs supported by the terminal under the first transmission condition.
  • the second value is determined according to the first value.
  • the second value is determined according to the value of an intermediate variable, and the value of the intermediate variable is determined according to the first value.
  • the value of the intermediate variable is determined according to a third value, and the third value is determined according to the first value.
  • the first value is the maximum number of RBs with the smallest value among the plurality of maximum RB numbers; one of the plurality of maximum RB numbers is supported by the terminal under the first transmission condition
  • the first transmission condition refers to the first subcarrier interval for data transmission in the first frequency band, and one of the multiple carriers belongs to the first frequency band and uses the first subcarrier interval;
  • the third value is a product of the first value and the fourth value, and the value of the fourth value is agreed upon by a protocol or configured by the base station.
  • the fourth value is 156.
  • the intermediate variable is one of the following:
  • N info min(N maxRE ,min(156,N' RE ) ⁇ n PRB ),
  • N info min(156 ⁇ N maxRB ,min(156,N' RE ) ⁇ n PRB ),
  • N info represents the intermediate variable
  • N maxRE represents the third value
  • N maxRB represents the first value, in Is the number of time-domain symbols occupied by the one physical channel, Is the number of time-domain symbols used to transmit demodulation reference signals in this slot, Configured by higher layer signaling or equal to 0,
  • n PRB is the number of physical resource blocks allocated by the physical channel
  • R represents the coding rate of the first physical channel
  • Q m represents the modulation order of the first physical channel
  • v represents the number of physical resource blocks allocated to the physical channel. The number of layers of the first physical channel.
  • the transmission unit is further configured to receive first downlink control information DCI from a network device, and the first DCI is used to schedule the first physical channel.
  • the transmission unit is further configured to send capability information, and the capability information includes the maximum transmission bandwidth or the maximum RB supported by the terminal for data transmission using at least one subcarrier interval in at least one frequency band. Quantity or maximum TBS.
  • the data transmission device 4 includes: a processing module 40 and a communication module 41.
  • the processing module 40 is used to control and manage the actions of the data transmission device and/or to perform other processes of the technology described herein.
  • the communication module 41 is used to support the interaction between the data transmission device and other devices.
  • the data transmission device may further include a storage module 42 for storing program codes and data of the data transmission device.
  • the processing module 40 may be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an ASIC, an FPGA, or other programmable processors. 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 communication module 41 may be a transceiver, an RF circuit, a communication interface, or the like.
  • the storage module 42 may be a memory.
  • Both the data transmission device 3 and the data transmission device 4 described above can perform the steps performed by the terminal in the data transmission method shown in FIG. 2A.
  • FIG. 5 is a schematic structural diagram of a terminal 500 provided by an embodiment of the present application. As shown in FIG. The processor 510, the memory 520, and the communication bus of the communication interface 530.
  • the memory 520 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or Portable read-only memory (compact disc read-only memory, CD-ROM), the memory 520 is used for related instructions and data.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read-only memory
  • CD-ROM Compact disc read-only memory
  • the communication interface 530 is used to receive and send data.
  • the processor 510 may be one or more central processing units (CPUs). When the processor 510 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.
  • the processor 510 in the terminal 500 is configured to read one or more program codes 521 stored in the memory 520, and perform the following operations: call the communication interface 530 to transmit the first physical channel through multiple carriers, where The total amount of frequency domain resources allocated to the first physical channel on the multiple carriers does not exceed a first value and/or the transport block size TBS carried by the first physical channel does not exceed a second value, the first The value is used to indicate the maximum number of frequency domain resources occupied by the terminal for transmitting a physical channel in a carrier, and the second value is used to indicate the maximum number of TBS that the terminal can carry for transmitting a physical channel in a carrier. value.
  • each operation may also correspond to the corresponding description of the method embodiment shown in FIG. 2A, and the terminal 500 may be used to execute the terminal-side method of the foregoing method embodiment of the present application.
  • the embodiment of the present application provides a data transmission device, and the data transmission device may be a network device. Specifically, the data transmission device is used to execute the steps performed by the network device in the above data transmission method.
  • the data transmission device provided in the embodiment of the present application may include modules corresponding to corresponding steps.
  • the embodiment of the present application may divide the data transmission device into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 6 shows a possible schematic diagram of the structure of the data transmission device involved in the foregoing embodiment.
  • the data transmission device 6 includes a transmission unit 60,
  • the transmission unit 60 is configured to transmit the first physical channel through multiple carriers, wherein the total amount of frequency domain resources allocated to the first physical channel on the multiple carriers does not exceed the first value and/or the first physical channel.
  • the transport block size TBS carried by a physical channel does not exceed a second value, and the first value is used to indicate the maximum number of frequency domain resources occupied by a terminal transmitting a physical channel in a carrier, and the second value is used to indicate all
  • the terminal transmits the maximum value of TBS that can be carried by a physical channel in a carrier.
  • the first value is determined according to the frequency band of the multiple carriers, the subcarrier spacing, and the capability information of the terminal.
  • the first value is the maximum transmission bandwidth with the smallest value among the multiple maximum transmission bandwidths, where:
  • One of the multiple maximum transmission bandwidths is the maximum transmission bandwidth supported by the terminal under a first transmission condition, and the first transmission condition refers to data transmission using a first subcarrier interval in the first frequency band
  • One of the multiple carriers belongs to the first frequency band and adopts the first subcarrier interval.
  • the first value is the maximum number of RBs with the smallest value among the number of maximum resource block RBs, where:
  • One of the plurality of maximum RB numbers is the maximum number of RBs supported by the terminal under a first transmission condition, and the first transmission condition refers to data transmission using a first subcarrier interval in the first frequency band
  • One of the multiple carriers belongs to the first frequency band and adopts the first subcarrier interval.
  • the maximum number of RBs supported by the terminal under the first transmission condition is determined according to the maximum transmission bandwidth supported by the terminal under the first transmission condition and the configuration information of the number of RBs of the terminal.
  • the maximum transmission bandwidth supported by the terminal under the first transmission condition is indicated by the capability information of the terminal, and the configuration information of the number of RBs of the terminal includes the terminal supported under the first transmission condition.
  • the second value is determined according to frequency bands of the multiple carriers, subcarrier spacing, and capability information of the terminal.
  • the second value is the largest TBS with the smallest value among the multiple largest TBSs, where:
  • One of the plurality of maximum TBS is the maximum TBS supported by the terminal under a first transmission condition, and the first transmission condition refers to data transmission using a first subcarrier interval in the first frequency band, and One of the multiple carriers belongs to the first frequency band and adopts the first subcarrier interval.
  • the maximum TBS supported by the terminal under the first transmission condition is determined according to the maximum transmission bandwidth supported by the terminal under the first transmission condition; or,
  • the maximum TBS supported by the terminal under the first transmission condition is determined according to the maximum number of RBs supported by the terminal under the first transmission condition.
  • the second value is determined according to the first value.
  • the second value is determined according to the value of an intermediate variable, and the value of the intermediate variable is determined according to the first value.
  • the value of the intermediate variable is determined according to a third value, and the third value is determined according to the first value.
  • the first value is the maximum number of RBs with the smallest value among the plurality of maximum RB numbers; one of the plurality of maximum RB numbers is supported by the terminal under the first transmission condition
  • the first transmission condition refers to the first subcarrier interval for data transmission in the first frequency band, and one of the multiple carriers belongs to the first frequency band and uses the first subcarrier interval;
  • the third value is a product of the first value and the fourth value, and the value of the fourth value is agreed upon by a protocol or configured by the base station.
  • the fourth value is 156.
  • the intermediate variable is one of the following:
  • N info min(N maxRE ,min(156,N' RE ) ⁇ n PRB ),
  • N info min(156 ⁇ N maxRB ,min(156,N' RE ) ⁇ n PRB ),
  • N info represents the intermediate variable
  • N maxRE represents the third value
  • N maxRB represents the first value, in Is the number of time-domain symbols occupied by the one physical channel, Is the number of time-domain symbols used to transmit demodulation reference signals in this slot, Configured by higher layer signaling or equal to 0,
  • n PRB is the number of physical resource blocks allocated by the physical channel
  • R represents the coding rate of the first physical channel
  • Q m represents the modulation order of the first physical channel
  • v represents the number of physical resource blocks allocated to the physical channel. The number of layers of the first physical channel.
  • the transmission unit 60 is further configured to send first downlink control information DCI to the terminal, where the first DCI is used to schedule the first physical channel.
  • the transmission unit 60 is further configured to receive capability information, and the capability information includes the maximum transmission bandwidth or maximum transmission bandwidth supported by the terminal for data transmission using at least one subcarrier interval in at least one frequency band.
  • the data transmission device 7 includes: a processing module 70 and a communication module 71.
  • the processing module 70 is used to control and manage the actions of the data transmission device and/or to perform other processes of the technology described herein.
  • the communication module 71 is used to support the interaction between the data transmission device and other devices.
  • the data transmission device may further include a storage module 72, and the storage module 72 is used to store the program code and data of the data transmission device.
  • the processing module 70 may be a processor or a controller, for example, a CPU, a general-purpose processor, DSP, ASIC, 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 communication module 71 may be a transceiver, an RF circuit, a communication interface, or the like.
  • the storage module 72 may be a memory.
  • Both the data transmission device 6 and the data transmission device 7 described above can perform the steps performed by the network device in the data transmission method shown in FIG. 2A.
  • FIG. 8 is a schematic structural diagram of a network device 800 provided by an embodiment of the present application.
  • the network device 800 includes a processor 810, a memory 820, a communication interface 830, and at least one A communication bus connecting the processor 810, the memory 820, and the communication interface 830.
  • the memory 820 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or A portable read-only memory (compact disc read-only memory, CD-ROM), the memory 820 is used for related instructions and data.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read-only memory
  • CD-ROM compact disc read-only memory
  • the communication interface 830 is used to receive and send data.
  • the processor 810 may be one or more central processing units (CPUs).
  • CPUs central processing units
  • the CPU may be a single-core CPU or a multi-core CPU.
  • the processor 810 in the terminal 800 is configured to read one or more program codes 821 stored in the memory 820, and perform the following operations: transmit the first physical channel through multiple carriers, where the multiple carriers are allocated The total amount of frequency domain resources for the first physical channel does not exceed a first value and/or the transport block size TBS carried by the first physical channel does not exceed a second value, and the first value is used to indicate that the terminal is in The maximum number of frequency domain resources occupied by transmitting one physical channel in one carrier, and the second value is used to indicate the maximum value of TBS that the terminal can carry in transmitting one physical channel in one carrier.
  • each operation may also correspond to the corresponding description of the method embodiment shown in FIG. 2A, and the network device 800 may be used to execute the method on the network device side of the foregoing method embodiment of the present application.
  • the embodiment of the present application also provides a chip, wherein the chip includes a processor, which is used to call and run a computer program from the memory, so that the device installed with the chip executes the part described in the terminal in the above method embodiment Or all steps.
  • the embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the terminal in the above method embodiment Some or all of the steps described.
  • the embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the network in the above-mentioned method embodiment. Part or all of the steps described by the side device.
  • the embodiments of the present application also provide a computer program product, wherein the computer program product includes a computer program, and the computer program is operable to make a computer execute part or all of the steps described in the terminal in the above method embodiment.
  • the computer program product may be a software installation package.
  • the steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read Only Memory, ROM), and erasable programmable read-only memory ( Erasable Programmable ROM (EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the ASIC may be located in an access network device, a target network device, or a core network device.
  • the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.
  • the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • 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.
  • 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.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, 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, a magnetic tape), an optical medium (for example, a digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (for example, a solid state disk (Solid State Disk, SSD)) )Wait.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a digital video disc (Digital Video Disc, DVD)
  • a semiconductor medium for example, a solid state disk (Solid State Disk, SSD)

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Abstract

Un procédé de transmission de données et un dispositif associé sont divulgués dans des modes de réalisation de la présente invention. Le procédé comprend : la transmission, par un terminal, d'un premier canal physique au moyen de multiples porteuses, la quantité totale de ressources de domaine fréquentiel sur les multiples porteuses attribuées au premier canal physique n'excède pas une première valeur et/ou une taille de bloc de transport (TBS) transportée par le premier canal physique n'excède pas une seconde valeur, la première valeur étant utilisée pour indiquer la quantité maximale des ressources de domaine fréquentiel occupées par le terminal pour transmettre un canal physique dans une porteuse, et la seconde valeur étant utilisée pour indiquer la valeur maximale de la TBS qui peut être transportée par le canal physique transmis par le terminal dans une porteuse. Ainsi, la présente invention permet à des terminaux de capacité existants de prendre en charge l'utilisation de multiples porteuses pour transmettre un canal physique.
PCT/CN2020/089626 2020-05-11 2020-05-11 Procédé de transmission de données et dispositif associé WO2021226794A1 (fr)

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