WO2020200193A1 - Procédé, appareil et dispositif de transmission de données - Google Patents

Procédé, appareil et dispositif de transmission de données Download PDF

Info

Publication number
WO2020200193A1
WO2020200193A1 PCT/CN2020/082354 CN2020082354W WO2020200193A1 WO 2020200193 A1 WO2020200193 A1 WO 2020200193A1 CN 2020082354 W CN2020082354 W CN 2020082354W WO 2020200193 A1 WO2020200193 A1 WO 2020200193A1
Authority
WO
WIPO (PCT)
Prior art keywords
resource
frequency domain
unit
symbol
overlapping
Prior art date
Application number
PCT/CN2020/082354
Other languages
English (en)
Chinese (zh)
Inventor
费永强
郭志恒
谢信乾
Original Assignee
华为技术有限公司
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.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2020200193A1 publication Critical patent/WO2020200193A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows

Definitions

  • This application relates to the field of communications, in particular to a data transmission method, device and equipment.
  • a wireless communication system such as a new radio (NR) system
  • information exchanged between a user equipment (UE) and a base station (gNodeB, gNB) is carried through a physical channel.
  • the data sent by the UE can usually be carried by the physical uplink shared channel (PUSCH);
  • the control information sent by the UE can usually be carried by the physical uplink control channel (physical uplink).
  • uplink control channel (PUCCH) bearer uplink control channel (PUCCH) bearer.
  • the UE may also send a sounding reference signal (SRS), and the gNB estimates the channel quality of the UE on different frequencies by receiving the SRS sent by the UE.
  • SRS sounding reference signal
  • uplink transmission usually refers to the UE sending information to the gNB
  • downlink transmission usually refers to the gNB sending information to the UE.
  • the gNB configures the UE for a certain number of repeated transmissions so that the UE repeatedly sends data multiple times.
  • the gNB performs combined detection or demodulation on the data information, control information, or SRS sent by the UE multiple times, thereby improving the detection performance or demodulation performance, thereby achieving the effect of coverage enhancement.
  • gNB instructs the UE to repeat the maximum number of retransmissions to 8 times.
  • NR can support frequency hopping repeated transmission, see Figure 1a, and non-frequency hopping repeated transmission, see Figure 1b.
  • one transmission is a transmission in one slot; while for multiple repeated transmissions, it is transmitted in multiple time slots, and the range of time-frequency resources used is the same in each time slot.
  • gNB schedules the UE to transmit PUSCH by sending downlink control information (DCI).
  • DCI downlink control information
  • the DCI indicates that the time domain resources used by the UE for the first transmission include multiple consecutive ones in a time slot.
  • Orthogonal frequency division multiplexing (OFDM) symbols frequency domain resources include 4 consecutive resource blocks (resource blocks, RB), the UE will also use the same number and sum in a slot during subsequent repeated transmissions. Location of OFDM symbols and RB resources to transmit PUSCH.
  • OFDM Orthogonal frequency division multiplexing
  • the present application provides a data transmission method, device and equipment, which can improve the efficiency of repeated PUSCH transmission by the UE and the utilization rate of remaining idle resources.
  • an embodiment of the present application provides a data transmission method, the method includes: a terminal device receives first indication information from a network device, the first indication information is used to indicate a first resource reserved by the terminal device The terminal device determines a third resource according to the first resource and the second resource, the second resource is a resource used for the terminal device to send uplink data, and the third resource is among the second resources Excluding overlapping resources or remaining resources related to overlapping resources, the overlapping resources are resources where the first resource and the second resource overlap; the terminal device sends an uplink on the third resource data.
  • the network device configures the reserved resources in the uplink transmission process for the terminal device through the first indication information, so that the terminal device does not perform uplink transmission on the overlapping resources of the reserved first resource and the allocated second resource or the related resources of the overlapping resources , And the remaining resources of the second resource excluding overlapping resources or related resources can continue to be used for uplink transmission, thereby effectively using transmission resources, not only avoiding the overlap of transmission resources between terminal devices, but also
  • the resource utilization rate is improved when the number of repeated transmissions in the uplink transmission process of the terminal equipment is large, and the transmission efficiency and reliability are improved.
  • the terminal device determining the third resource according to the first resource and the second resource includes: the terminal device according to the first resource and the second resource
  • the resource and the transmission mode of the uplink data determine the third resource, wherein the transmission mode of the uplink data is a converted precoding transmission mode.
  • the terminal device determining the third resource according to the first resource and the second resource includes: the terminal device according to the first resource and the second resource The second resource, and the uplink data transmission mode determines the third resource, the third resource is the remaining resource in the second resource excluding the overlapping resources, and the uplink data transmission mode is non-transformed pre- Encoding transmission method.
  • the terminal device can use non-contiguous frequency domain units to transmit uplink data, so all the remaining resources after removing the overlapping resources are used as the third resource for uplink transmission, thereby improving repeated transmission uplink Data resource utilization.
  • the overlapping resource includes at least one symbol in the time domain; wherein the related resource of the overlapping resource includes the at least one symbol in the time domain , Including all frequency domain resources corresponding to the at least one symbol in the frequency domain; the third resource is a remaining resource in the second resource excluding related resources of the overlapping resource.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is The remaining resources of the second resource excluding related resources of overlapping resources, the related resources of the overlapping resources include all frequency domain units corresponding to the first symbol; wherein the fourth resource is on the first symbol There is a non-contiguous frequency domain unit, the fourth resource is the resource after the second resource removes the overlapping resource, and the non-contiguous frequency domain unit refers to the presence of a first frequency on the first symbol At least one frequency domain unit is spaced between the domain unit and the second frequency domain unit.
  • All frequency-domain units on the time-domain symbols corresponding to overlapping resources are not used as resources for the terminal device to transmit uplink data, and all frequency-domain units corresponding to the remaining time-domain symbols are used to transmit uplink data, thereby ensuring that the The continuity of the frequency domain unit on any of the remaining symbols also enables the terminal equipment to ensure that the transmission power of each time domain symbol is consistent when using the third resource to transmit uplink data.
  • the process of indicating the first resource and determining the third resource in this method is simple and clear, and easy to implement.
  • the frequency domain unit includes a resource block or a resource block group.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is The remaining resources of the second resource excluding related resources of overlapping resources, the related resources of the overlapping resources include other frequency domain units on the first symbol except the first continuous frequency domain unit; wherein, the fourth The resource has a non-contiguous frequency domain unit on the first symbol, the fourth resource is the resource after removing the overlapping resource from the second resource, and the non-contiguous frequency domain unit refers to the There is at least one frequency domain unit spaced between the first frequency domain unit and the second frequency domain unit on the first symbol; the first continuous frequency domain unit is the continuous largest resource occupied by the first symbol in the fourth resource The frequency domain unit, or, is a continuous frequency domain unit with the highest or lowest frequency on the first symbol in the fourth resource.
  • a frequency domain unit on the time domain symbol has a non-contiguous frequency domain unit, the largest continuous frequency domain unit among them is reserved, or the highest or lowest continuous frequency domain unit is used. In order to transmit uplink data, it not only ensures the continuity of frequency domain units on any time domain symbol, but also improves the transmission efficiency of uplink resources and the utilization of remaining resources.
  • the first continuous frequency domain unit is one or more frequency domain units.
  • the overlapping resource includes at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is The remaining resources of the second resources excluding related resources of overlapping resources, the related resources of the overlapping resources include the overlapping resources on the second symbol; wherein, the fourth resource is in the second symbol There is no non-contiguous frequency domain unit on the above, the fourth resource is the resource after removing the overlapping resources from the second resource, and the non-contiguous frequency domain unit refers to the presence of the first frequency on the second symbol At least one frequency domain unit is spaced between the domain unit and the second frequency domain unit.
  • the frequency domain unit on the time domain symbol is a continuous frequency domain unit
  • the continuous frequency domain unit is used to transmit uplink data, thereby increasing the uplink resources Transmission efficiency and utilization of remaining resources.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain, where the first symbol is The time unit of is the first time unit; the third resource is the remaining resource excluding the related resources of the overlapping resource in the second resource, and the related resource of the overlapping resource includes the first symbol in the time domain
  • the first time unit where it is located includes all frequency domain units corresponding to the first time unit in the frequency domain; wherein, the overlapping resource overlaps with the resource carrying the first reference signal in the first time unit, and /Or, the total number of symbols of the first symbol in the first time unit is greater than or equal to a first preset value, or the number of consecutive first symbols in the first time unit is greater than or equal to a second preset value.
  • the first time unit is a time slot or a subframe.
  • the first time unit where the first symbol is located is not used for uplink data to ensure that the first reference signal in the first time unit is Integrity, thereby ensuring the data demodulation performance in the first time unit, and avoiding the waste of energy consumption caused by the transmission of uplink data when the data in the first time unit cannot be correctly demodulated.
  • the overlapping resource includes at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain, where the second symbol is The time unit of is the second time unit; the third resource is the remaining resource excluding the related resources of the overlapping resource in the second resource, and the related resource of the overlapping resource includes the second symbol in the frequency domain All corresponding frequency domain units; wherein, the overlapping resource does not overlap with the resource carrying the first reference signal in the second time unit; and/or, the total number of symbols of the second symbol in the second time unit Is less than the first preset value, or the maximum value of the number of consecutive second symbols in the second time unit is less than the second preset value.
  • the first reference signal includes a demodulation reference signal DMRS or a sounding reference signal SRS.
  • This implementation ensures the integrity of the first reference signal in the second time unit, and makes the first reference signal available for channel estimation of one or more parts of the second time unit divided by the first resource, and then The demodulation performance of the data in the second time unit is guaranteed.
  • the terminal device is a device with enhanced coverage or a device that performs multiple transmissions, and/or the number of repeated transmissions performed by the terminal device is greater than a predetermined number of transmissions. Set the number of times.
  • an embodiment of the present application provides a data transmission method.
  • the method includes: a network device generates first indication information, where the first indication information is used to instruct a terminal device to reserve a first resource;
  • the terminal device sends the first indication information; determines a third resource according to the first resource and the second resource, and receives the uplink data sent by the terminal device in the third resource.
  • the second resource is a resource used for the terminal device to send uplink data
  • the third resource is a remaining resource in the second resource excluding overlapping resources or related resources of the overlapping resources, the overlapping resources Is a resource where the first resource and the second resource overlap.
  • the network device determining the third resource according to the first resource and the second resource includes: the network device according to the first resource and the second resource The resource and the transmission mode of the uplink data determine the third resource, wherein the transmission mode of the uplink data is a converted precoding transmission mode.
  • the network device determining the third resource according to the first resource and the second resource includes: the network device according to the first resource and the second resource The second resource, and the uplink data transmission mode determines the third resource, the third resource is the remaining resource in the second resource excluding the overlapping resources, and the uplink data transmission mode is non-transformed pre- Encoding transmission method.
  • the overlapping resource includes at least one symbol in the time domain; wherein the related resource of the overlapping resource includes the at least one symbol in the time domain , Including all frequency domain resources corresponding to the at least one symbol in the frequency domain; the third resource is a remaining resource in the second resource excluding related resources of the overlapping resource.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is The remaining resources of the second resource excluding related resources of overlapping resources, the related resources of the overlapping resources include all frequency domain units corresponding to the first symbol; wherein the fourth resource is on the first symbol There is a non-contiguous frequency domain unit, the fourth resource is the resource after the second resource removes the overlapping resource, and the non-contiguous frequency domain unit refers to the presence of a first frequency on the first symbol At least one frequency domain unit is spaced between the domain unit and the second frequency domain unit.
  • the frequency domain unit is one or more RBs.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is The remaining resources of the second resource excluding related resources of overlapping resources, the related resources of the overlapping resources include other frequency domain units on the first symbol except the first continuous frequency domain unit; wherein, the fourth The resource has a non-contiguous frequency domain unit on the first symbol, the fourth resource is the resource after removing the overlapping resource from the second resource, and the non-contiguous frequency domain unit refers to the There is at least one frequency domain unit spaced between the first frequency domain unit and the second frequency domain unit on the first symbol; the first continuous frequency domain unit is the continuous largest resource occupied by the first symbol in the fourth resource The frequency domain unit, or, is a continuous frequency domain unit with the highest or lowest frequency on the first symbol in the fourth resource.
  • the overlapping resource includes at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is The remaining resources of the second resources excluding related resources of overlapping resources, the related resources of the overlapping resources include the overlapping resources on the second symbol; wherein, the fourth resource is in the second symbol There is no non-contiguous frequency domain unit on the above, the fourth resource is the resource after removing the overlapping resources from the second resource, and the non-contiguous frequency domain unit refers to the presence of the first frequency on the second symbol At least one frequency domain unit is spaced between the domain unit and the second frequency domain unit.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain, where the first symbol is located
  • the time unit of is the first time unit
  • the third resource is the remaining resource in the second resource excluding the related resources of the overlapping resource
  • the related resource of the overlapping resource includes the first symbol in the time domain
  • the first time unit where it is located includes all frequency domain units corresponding to the first time unit in the frequency domain; wherein, the overlapping resource overlaps with the resource carrying the first reference signal in the first time unit, and /Or, the total number of symbols of the first symbol in the first time unit is greater than or equal to a first preset value, or the number of consecutive first symbols in the first time unit is greater than or equal to a second preset value.
  • the overlapping resource includes at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain, where the second symbol is located
  • the time unit of is the second time unit
  • the third resource is the remaining resource of the second resource excluding the related resources of the overlapping resource
  • the related resource of the overlapping resource includes the second symbol in the frequency domain All corresponding frequency domain units; wherein, the overlapping resource does not overlap with the resource carrying the first reference signal in the second time unit; and/or, the total number of symbols of the second symbol in the second time unit Is less than the first preset value, or the maximum value of the number of consecutive second symbols in the second time unit is less than the second preset value.
  • the terminal device is a device with enhanced coverage or a device that performs multiple transmissions, and/or the number of repeated transmissions performed by the terminal device is greater than the predetermined number of transmissions. Set the number of times.
  • embodiments of the present application provide a data transmission device, which is configured to implement the foregoing first aspect and the data transmission method in various implementation manners of the first aspect.
  • the data transmission device is a terminal device or a device integrated in the terminal device.
  • the device includes at least one functional unit or module, and further, the at least one functional unit is a receiving unit, a processing unit, or a sending unit.
  • the embodiments of the present application also provide another data transmission device, which is used to implement the foregoing second aspect and the data transmission method in various implementation manners of the second aspect.
  • the data transmission device is a network device or a device integrated in the network device.
  • an embodiment of the present application also provides a communication device, including a processor and a memory, the processor is coupled to the memory, and the memory is used to store instructions; the processor is used to call the instructions to make
  • the communication device executes the foregoing first aspect and the data transmission method in the various implementations of the first aspect, or the processor is used to call the instruction to make the communication device execute the foregoing second aspect and various implementations of the second aspect The data transmission method in the mode.
  • the communication device further includes a transceiver, which is used to receive or send messages and data from the peer device.
  • the communication device is the device described in the third aspect or the fourth aspect.
  • the network device when used as the device in the third aspect, it may be a terminal device, such as a UE.
  • the network device when used as the device in the fourth aspect, it may be a network device, such as a base station or an access point.
  • the embodiments of the present application also provide a computer-readable storage medium.
  • the storage medium stores instructions.
  • the instructions run on a computer or a processor, they are used to execute the aforementioned first aspect and the first aspect.
  • the embodiments of the present application also provide a computer program product.
  • the computer program product includes computer instructions. When the instructions are executed by a computer or a processor, the foregoing first aspect and various aspects of the first aspect can be implemented. The method in the implementation manner, or the method in the foregoing second aspect and various implementation manners of the second aspect.
  • an embodiment of the present application also provides a chip system, the chip system includes a processor and an interface circuit, the interface circuit is coupled with the processor, and the processor is used to execute a computer program or instruction to Implement the foregoing first aspect and the methods in the various implementations of the first aspect, or implement the foregoing second aspect and the methods in the various implementations of the second aspect; wherein the interface circuit is used to communicate with other than the chip system Other modules communicate.
  • an embodiment of the present application also provides a communication system, including at least two communication devices, the at least two communication devices including at least one first communication device and at least one second communication device, and the first communication device
  • the device may be the device described in the third aspect, used to implement the data transmission method in the first aspect and various implementation manners of the first aspect;
  • the second communication device may be the device described in the fourth aspect, used to implement The second aspect and the data transmission method in various implementations of the second aspect.
  • the first communication device is a terminal device
  • the second communication device is a network device.
  • the network device uses the first indication information to configure reserved resources for the terminal device in the uplink transmission process, so that the terminal device can exchange the reserved first resource with the allocated second resource.
  • No uplink transmission is performed on overlapping resources or related resources of overlapping resources, and the remaining resources in the second resource excluding overlapping resources or related resources of overlapping resources can continue to be used for uplink transmission, thereby effectively using transmission resources.
  • This not only avoids the overlapping of transmission resources between terminal devices, but also improves the resource utilization when the number of repeated transmissions in the uplink transmission process of the terminal device is large, and the transmission efficiency and reliability are improved.
  • Figure 1a is a schematic diagram of a UE performing frequency hopping repeated transmission provided by this application;
  • FIG. 1b is a schematic diagram of a UE performing non-frequency hopping repeated transmission provided by this application;
  • FIG. 2 is a schematic diagram of multiple UEs performing uplink transmission provided by this application;
  • FIG. 3 is a schematic diagram of a scenario of a base station and multiple UEs according to an embodiment of the application
  • FIG. 4 is a flowchart of a data transmission method provided by an embodiment of this application.
  • FIG. 5 is a schematic diagram of indicating a reserved first resource according to an embodiment of this application.
  • FIG. 6 is a schematic diagram of a process of determining a third resource provided by an embodiment of this application.
  • FIG. 7a is a schematic diagram of a process of determining a third resource provided by an embodiment of this application.
  • FIG. 7b is a schematic diagram of another process of determining a third resource provided by an embodiment of this application.
  • FIG. 7c is a schematic diagram of another process of determining a third resource provided by an embodiment of this application.
  • FIG. 7d is a schematic diagram of yet another process of determining a third resource provided by an embodiment of this application.
  • FIG. 7e is a schematic diagram of another process of determining a third resource provided by an embodiment of this application.
  • FIG. 7f is a schematic diagram of another process of determining a third resource provided by an embodiment of this application.
  • FIG. 7g is a schematic diagram of another process of determining a third resource provided by an embodiment of this application.
  • FIG. 7h is a schematic diagram of yet another process of determining a third resource provided by an embodiment of this application.
  • FIG. 7i is a schematic diagram of another process of determining a third resource provided by an embodiment of this application.
  • FIG. 7j is a schematic diagram of another process of determining a third resource provided by an embodiment of this application.
  • FIG. 7k is a schematic diagram of another process of determining a third resource provided by an embodiment of this application.
  • FIG. 71 is a schematic diagram of yet another process of determining a third resource provided by an embodiment of this application.
  • FIG. 7m is a schematic diagram of yet another process of determining a third resource provided by an embodiment of this application.
  • FIG. 8a is a schematic diagram of indicating a first resource through a bitmap according to an embodiment of the application.
  • FIG. 8b is another schematic diagram of indicating a first resource through a bitmap according to an embodiment of this application.
  • FIG. 9 is a flowchart of another data transmission method provided by an embodiment of the application.
  • FIG. 10 is a schematic structural diagram of a data transmission device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the technical solution of this application can be applied to a communication system composed of at least one network device and at least one terminal device, such as a Long Term Evolution (LTE) system, or the 5th generation mobile communication system (The 5th generation, 5G), In addition, it can also be applied to future communication systems, such as the sixth-generation and seventh-generation mobile communication systems. As long as the sending end of the communication system sends information indicating transmission resources, another entity receiving end receives the information and uses it. It determines the transmission resource.
  • LTE Long Term Evolution
  • 5G 5th generation mobile communication system
  • future communication systems such as the sixth-generation and seventh-generation mobile communication systems.
  • the network device may be a base station (BS). Further, the base station may be a global system for mobile communications (global mobile communication system, BS).
  • the base station (BTS) in the system for mobile communication (GSM) or code division multiple access (CDMA), or the base station (wideband-CDMA, WCDMA) in the wideband code division multiple access (CDMA) NodeB), or evolved NodeB (eNB/e-NodeB) in LTE, or evolved base station (next generation eNB, ng-eNB) in LTE, or base station (gNB) in NR
  • the base station in the future mobile communication system or the access node in the wireless fidelity (wireless fidelity, WiFi) system, etc.
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.
  • the network device may be a wireless access network device.
  • the terminal device in the embodiment of the present application may be a device that provides services and/or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, such as a wireless terminal.
  • the wireless terminal may communicate with one or more nodes via a radio access network (RAN), and the wireless terminal may be a mobile terminal, such as a mobile phone (or called a "cellular" phone)
  • a computer with a mobile terminal for example, can be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device, which exchanges language and/or data with the wireless access network.
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • the wireless terminal may also be a subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote station (remote station), access point (access point), remote station Terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), user equipment (user device) or user equipment (user equipment, UE), etc., embodiments of this application
  • subscriber unit subscriber unit
  • subscriber station subscriber station
  • mobile station mobile station
  • mobile station mobile station
  • remote station remote station
  • access point access point
  • remote station Terminal remote station
  • access terminal access terminal
  • user terminal user terminal
  • user agent user agent
  • user equipment user device
  • user equipment user equipment
  • UE1 vehicle namely: UE1 vehicle, UE2 router, UE3 gas station, UE4 coffee machine, UE5 mobile phone and UE6 printer.
  • the base station and UE1 to UE6 form a communication system.
  • UE1 to UE6 can send uplink data to the base station, and the base station needs to receive the uplink data sent by UE1 to UE6.
  • UE4 to UE6 can also form a communication system.
  • the base station can send downlink information to UE1, UE2, UE3, UE5, etc.; UE5 can also send downlink information to UE4 and UE6.
  • This embodiment provides a data transmission method, which is used to improve the efficiency of repeated uplink data transmission by the UE and the utilization of remaining idle resources while ensuring that the range of time-frequency resources allocated for each repeated uplink transmission of the UE is the same.
  • the first transmission method non-conversion precoding
  • the "non-transformed precoding" transmission method is based on the transmission method of cyclic prefix-OFDM (CP-OFDM).
  • This transmission method can also be understood as a transmission method when transform precoding (transform precoding) is not used, or a transmission method when transform precoding is not enabled (English: transform precoding is not applied/disabled).
  • transform precoding transform precoding
  • transform precoding transform precoding
  • transform precoding transform precoding
  • the UE can use continuous resource units for transmission in the frequency domain, or use non-contiguous resource units for transmission.
  • the non-contiguous resource unit refers to at least one resource unit existing or separated between two resource units.
  • the resource unit may be a resource block (resource block, RB) in the frequency domain, or a resource block group (resource block group, RBG) composed of multiple consecutive RBs, or a resource particle (resource block). element, RE) or resource element group (REG).
  • the second transmission method conversion precoding
  • the "transformed precoding" transmission method is based on the discrete Fourier transform-spread-orthogonal frequency division multiplexing (discrete Fourier transform-spread-OFDM, DFT-s-OFDM) transmission method.
  • the transmission mode can be understood as the transmission mode when the conversion precoding is used, or the transmission mode when the conversion precoding is enabled (English: transform precoding is applied/enabled). This transmission mode requires that the transmission resource units used by the UE be continuous in the frequency domain.
  • the transmission resource unit used is usually RB or RBG as the granularity (or unit) in the frequency domain
  • the transmission of PUSCH in this transmission mode needs to use one RB/RBG or multiple consecutive RB/RBG.
  • the method provided in the embodiment of the present application can be used for determining the transmission resource used by the terminal device when it performs uplink repeated transmission.
  • the method includes: the network device instructs the first resource reserved by the terminal device, where the first resource is a resource not used by the terminal device in uplink transmission; and then the terminal device determines according to the first resource and the allocated second resource The third resource used for actual transmission in uplink transmission.
  • the uplink transmission resource determined by this method uses more idle resources than the existing method, so more uplink data can be transmitted and the utilization of uplink resources is improved. , Or reduce the coding rate while keeping the transmission rate unchanged, and improve the transmission reliability.
  • the method in this embodiment includes:
  • Step 101 A terminal device receives first indication information from a network device, where the first indication information is used to indicate a first resource reserved by the terminal device.
  • the first indication information may be high-level signaling, such as radio resource control (radio resource control, RRC) signaling.
  • radio resource control radio resource control
  • the first indication information may be indicated by downlink control information (DCI).
  • DCI downlink control information
  • the network device configures multiple first resources to the terminal device through high-level signaling, and further indicates one of the first resources to the terminal device through DCI.
  • the reserved first resource indicated by the first indication information may be a resource block symbol (RB-symbol) level resource.
  • the reserved resource indication method may be multiplexed with general downlink (DL).
  • DL general downlink
  • the resources indicated by the first indication information may also be RE-level reserved resources, or may also be other forms of reserved resources, for example, may be the union of multiple resource block symbol-level reserved resources, which is not limited in this application.
  • the first indication information to indicate the first resource may be implemented in a bitmap mode, and the specific process is described in detail in the following embodiments.
  • Step 102 The terminal device determines a third resource according to the first resource and the second resource, the second resource is a resource for the terminal device to send uplink data, and the third resource is among the second resources. Excluding overlapping resources or remaining resources related to overlapping resources, the overlapping resources are resources where the first resource and the second resource overlap.
  • the second resource may be a resource indicated by a network device sent to each terminal device in a broadcast manner, or a resource indicated by a system message, or a resource allocated for a terminal device indicated by DCI, or, It may also be a resource configured by a network device in a semi-static configuration for a terminal device in advance, such as a configured authorized (configured grant) transmission resource, or a grant free transmission resource. This embodiment obtains the second resource
  • the method is not limited.
  • the resource allocation indicated by the DCI refers to the resource indicated by the resource allocation indication information carried in the DCI in the uplink transmission scheduled by the DCI. It represents the transmission resource used by the UE without considering the reserved first resource; similarly, the pre-configured allocated resources are similar, and the difference between it and the allocated resources of DCI is that it does not require network equipment to pass DCI dynamically indicates that its transmission resources are semi-statically configured, that is, configured through RRC high-level signaling, and are also transmission resources used without considering the reserved first resource.
  • Step 103 The terminal device sends uplink data on the third resource.
  • the method may further include: the terminal device determines whether the reserved first resource is valid, and executes the steps 102 and 103 when the first resource is valid. That is, when the first resource becomes effective, the terminal device transmits on the third resource determined according to the first resource and the second resource; when the first resource does not become effective, the terminal device only determines the third resource according to the second resource and transmits The uplink data is transmitted on the third resource. At this time, the size of the third resource is the same as the size of the second resource.
  • the first judging method judging whether the terminal device is a device with enhanced coverage or a device that performs multiple transmissions.
  • the second judgment method judge whether the number of repeated transmissions is greater than the preset number
  • the third judging method judging whether the terminal device is a device with enhanced coverage or a device that performs multiple transmissions, and whether the number of repeated transmissions is greater than a preset number.
  • the base station informs the UE through RRC signaling to set or instruct the UE to be a UE of the first type, and the UE of the first type is a UE with enhanced coverage, or a potential need A UE that repeatedly transmits uplink data more often.
  • the configured first indication information is all valid.
  • an implementation manner is that the base station sends second indication information to the UE, where the second indication information is used to indicate that the UE is a UE with enhanced coverage, or a UE that needs to repeatedly transmit uplink data more frequently.
  • the second judgment method is that the first resource takes effect when the base station indicates that the number of repeated transmissions of the uplink data of the UE is greater than the preset number (set the preset number as X, X ⁇ 1 and a positive integer).
  • the base station sends third indication information to the UE, where the third indication information is used to indicate the number of repeated transmissions by the UE, where the third indication information may be carried in the DCI, and let the number of repeated transmissions Y is a positive integer.
  • the base station can anticipate resource usage in a short period of time, so it can indicate the size of the second resource only through dynamic signaling (for example, DCI), thereby eliminating the need to configure the second resource.
  • DCI dynamic signaling
  • X 8.
  • the preset number of times may also be another value, or a value pre-specified by the protocol or configured by the base station.
  • the third judgment method similar to the above-mentioned “First judgment method” and “Second judgment method”, if and only if the UE is a first type UE and the number of repeated transmissions is greater than the preset number, that is, when Y>X , The reserved first resource takes effect. Otherwise, the first resource does not take effect.
  • the specific implementation process of the "third judgment method” please refer to the related descriptions of the above-mentioned "first judgment method” and "second judgment method”. Go into details.
  • the network device configures the reserved first resource for the terminal device through the first indication information, so that the terminal device determines the third resource for uplink transmission through the reserved first resource and the allocated second resource, so
  • the third resource is the remaining resources in the second resource except for overlapping resources or overlapping resource-related resources.
  • Uplink data transmission on the remaining resources effectively utilizes the transmission resources, and not only avoids mutual transmission resources between terminal devices. Overlapping, and also improves the resource utilization when the number of repeated transmissions in the uplink transmission process of the terminal equipment is large, and improves the transmission efficiency and reliability.
  • the resources involved in this application are represented by OFDM symbols in the time domain; Frequency domain unit, such as RB.
  • Frequency domain unit such as RB.
  • a transmission resource that includes a slot in the time domain it is illustrated by taking 14 OFDM symbols in the time domain and up to 7 RBs in the frequency domain as an example.
  • the index numbers (referred to as index) from the 1st OFDM symbol to the 14th OFDM symbol on the right are 0, 1, 2, ..., 13; the first RB to the 7th from top to bottom in the frequency domain
  • the indexes of RB are 1, 2, 3,...,7 in sequence.
  • Fig. 5 also shows a possible schematic diagram of the first resource, where the first resource includes an OFDM symbol with index 7 in the time domain, and the resource in the frequency domain includes three RBs with indexes 3 to 5.
  • step 102 the specific implementation manners for the terminal device to determine the third resource according to the first resource and the second resource can be divided into the following types:
  • the terminal device determines the third resource according to the first resource and the second resource, wherein the overlapping resource between the first resource and the second resource is an empty set, that is, the first resource If there is no overlap with the second resource, it is determined that the third resource is the remaining resource after the empty set is removed from the second resource, and the remaining resource is the second resource, that is, the size of the third resource is The size of the second resource is the same.
  • the first resource includes an OFDM symbol with index 7 in the time domain and an RB with index 7 in the frequency domain; the second resource includes the entire time slot in the time domain, that is, the index is 0 to 13.
  • the third resource includes 14 OFDM symbols in the time domain, and the resource in the frequency domain includes all RBs with indexes 2 to 6.
  • the terminal device determines the third resource according to the first resource, the second resource, and the transmission mode of uplink data, where the uplink transmission mode is a non-transformed precoding transmission mode.
  • the terminal device determines the third resource according to the first resource, the second resource, and the transmission mode of the uplink data, where the uplink transmission mode is a transmission mode of precoding conversion.
  • the terminal device determines the third resource according to the first resource and the second resource. Specifically, the terminal device does not determine the third resource according to the uplink data transmission mode, but only determines the third resource according to the first resource and the second resource.
  • the terminal device also removes the first resource according to the overlap between the resource used to carry the reference signal in the second resource and the first resource, and/or the second resource removes the first resource.
  • the time domain continuity characteristics of the remaining resources of the resource are determined, the third resource is determined, and the reference signal includes a demodulation reference signal (DMRS) and/or a sounding reference signal (SRS).
  • DMRS demodulation reference signal
  • SRS sounding reference signal
  • the third resource is the second resource except the overlapping resource Remaining resources. Because in the non-transformed precoding transmission mode, the terminal device can use non-contiguous frequency domain units for transmission, so when determining the uplink transmission resource, it can reserve some frequency domain units on a certain time domain symbol, thereby improving the transmission resource. Utilization rate.
  • the first indication information indicates that the first resource reserved by the UE includes an OFDM symbol with index 7 in the time domain and three RBs with indices 3 to 5 in the frequency domain; the second resource is in the time domain.
  • the domain includes the entire time slot, that is, a total of 14 OFDM symbols with indexes 0 to 13, and all RBs with indexes 2 to 6 in the frequency domain.
  • the overlapping resources include OFDM symbols with index 7 in the time domain.
  • the third resource is determined to be the second resource except for The remaining resources after the first resource, the determined third resource includes 14 OFDM symbols in the time domain, wherein the corresponding frequency domain resources on the 13 OFDM symbols with indexes 0 to 6, 8 to 13 include the indexes of For all RBs from 2 to 6, the corresponding frequency domain resources on the OFDM symbol with index 7 include two RBs with index 2 and index 6.
  • the method in this embodiment uses the feature that the resource units transmitted in the non-transformed precoding transmission mode can be discontinuous in the frequency domain, and uses the remaining resources of the second resource to remove the overlapping resources for uplink transmission, thereby maximizing The remaining resources are used, which effectively improves the utilization of uplink resources.
  • the terminal device determines the third resource according to the first resource and the second resource, and the uplink data transmission mode is a conversion precoding mode; specifically, possible situations are as follows:
  • the overlapping resource includes at least one symbol in the time domain and at least one frequency domain unit in the frequency domain
  • the third resource is the second resource
  • the remaining resources except for the related resources of the overlapping resources, the related resources of the overlapping resources include the at least one symbol in the time domain and all frequency domain units corresponding to the at least one symbol in the frequency domain.
  • the first indication information indicates that the first resource includes an OFDM symbol with an index of 7 in the time domain and two RBs with an index of 5 and 6 in the frequency domain.
  • the second resource includes the entire time slot in the time domain, that is, a total of 14 OFDM symbols with indexes 0 to 13, and all RBs with indexes 2 to 6 in the frequency domain.
  • the size of the overlapping resource is the same as the size of the first resource, it is determined that the third resource is the remaining resource in the second resource after removing the related resources of the overlapping resource, and the related resources of the overlapping resource
  • the OFDM symbols with index 7 are included, and in the frequency domain, the RBs with indexes 2 to 6 are included; the determined third resource includes a total of 13 indexes of 0 to 6, 8 to 13 in the time domain.
  • the OFDM symbol includes all RBs with indexes 2 to 6 in the frequency domain.
  • all frequency domain units on time domain symbols corresponding to overlapping resources are not used as resources for the terminal device to transmit uplink data, and all frequency domain units corresponding to the remaining time domain symbols are used
  • the continuity of the frequency domain unit on any remaining time domain symbol is ensured, and the terminal device also ensures that the transmission power of each time domain symbol is consistent when using the third resource to transmit uplink data.
  • the process of indicating the first resource and determining the third resource in this method is simple and clear, and easy to implement.
  • the overlapping resource includes at least one first symbol in the time domain, and the resource after removing the overlapping resource from the second resource is the fourth resource, so
  • the fourth resource has a non-contiguous frequency domain unit on the first symbol
  • the non-contiguous frequency domain unit refers to the presence of a first frequency domain unit and a second frequency domain unit on the first symbol At least one frequency domain unit is separated from each other.
  • the third resource is the remaining resource after removing related resources of overlapping resources in the second resource, and the related resources of the overlapping resources include all the resources corresponding to the first symbol. Frequency domain unit.
  • the first indication information indicates that the first resource includes an OFDM symbol with index 7 in the time domain and two RBs with index 3 and index 5 in the frequency domain; the second resource is in time
  • the domain includes the entire time slot, that is, a total of 14 OFDM symbols with indexes 0 to 13, and all RBs with indexes 2 to 6 in the frequency domain.
  • the size of the overlapping resource is the same as the size of the first resource, and the fourth resource is the remaining resource after removing the overlapping resource from the second resource, and the remaining resource includes 14 OFDM symbols in the time domain, where On symbols other than the OFDM symbol with index 7, the corresponding frequency domain unit includes all RBs with indexes 2 to 6; on the OFDM symbol with index 7, the corresponding frequency domain unit includes indexes 2, 4 And three RBs of 6.
  • the RB with index 2 in the frequency domain is the first frequency domain unit
  • the RB with index 4 is the second frequency domain unit
  • the RB of 3 belongs to the non-contiguous frequency domain unit, so the relevant resources of the overlapping resource are all RBs corresponding to the OFDM symbol with index 7, and the third resource is the second resource except the OFDM with index 7
  • the remaining resources after all the RBs on the symbol, that is, the third resource includes a total of 13 OFDM symbols with indexes 0 to 6, 8 to 13 in the time domain, and all RBs with indexes 2 to 6 in the frequency domain.
  • all frequency domain units on time domain symbols corresponding to overlapping resources are not used as resources for the terminal device to transmit uplink data, and all frequency domain units corresponding to the remaining time domain symbols are used for
  • the uplink data is transmitted, so as to ensure the continuity of the frequency domain unit on any remaining time domain symbol, and also enable the terminal device to ensure that the transmission power of each time domain symbol is consistent when using the third resource to transmit the uplink data.
  • the process of indicating the first resource and determining the third resource in this method is simple and clear, and easy to implement.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain.
  • the second resource removes the overlap.
  • the resource after overlapping resources is the fourth resource, and when the fourth resource has a non-contiguous frequency domain unit on the first symbol, the non-contiguous frequency domain unit refers to the presence on the first symbol At least one frequency domain unit is spaced between the first frequency domain unit and the second frequency domain unit; at this time, the third resource is the remaining resource in the second resource excluding the related resources of the overlapping resource, and the overlapping Related resources of the resource include other frequency domain units on the first symbol except for the first continuous frequency domain unit.
  • the first continuous frequency domain unit is:
  • the first indication information indicates that the first resource includes an OFDM symbol with an index of 7 in the time domain.
  • the domain includes two RBs with an index of 3 and an index of 5; the second resource includes the entire time slot in the time domain, that is, a total of 14 OFDM symbols with indexes from 0 to 13, and the frequency domain includes indexes from 2 to 7
  • the size of the overlapping resource is the same as the size of the first resource
  • the fourth resource is the remaining resource after removing the overlapping resource from the second resource
  • the fourth resource includes 14 OFDM symbols, except for symbols other than the OFDM symbol with index 7,
  • the corresponding frequency domain unit includes all RBs with indexes 2 to 7; on the OFDM symbol with index 7, the corresponding frequency domain unit includes RBs with indexes 2, 4, 6, and 7.
  • the two RBs with index 2 and index 4 are non-contiguous frequency domain units, and the continuous frequency domain unit composed of two RBs with index 6 and index 7 occupies the largest resource on the OFDM symbol with index 7 ( Or the longest length), so the continuous frequency domain unit is the first continuous frequency domain unit, and the third resource is the remaining resource after removing the related resources of the overlapping resource in the second resource, and the value of the overlapping resource Related resources include other frequency domain units except the first continuous frequency domain unit on the OFDM symbol with index 7, that is, four RBs with indexes 2 to 5 corresponding to the OFDM symbol with index 7, and the third resource is
  • the time domain includes a total of 13 OFDM symbols indexed from 0 to 6, 8 to 13, and all RBs indexed from 2 to 7 in the frequency domain; and on the OFDM symbol indexed 7, the corresponding frequency domain Two RBs with index 6 and index 7 (the first continuous frequency domain unit).
  • the first continuous frequency domain unit determined by this method can be used to transmit uplink data, so that the utilization of resources
  • the first continuous frequency domain unit may be one RB, or two or more RBs.
  • the first indication information indicates that the first resource includes an OFDM symbol with an index of 7 in the time domain
  • the time domain includes RBs with index 5
  • the second resource includes the entire time slot in the time domain, that is, a total of 14 OFDM symbols with indexes 0 to 13, and all RBs with indexes 3 to 6 in the frequency domain
  • the size of the overlapping resource is the same as the size of the first resource
  • the fourth resource is the remaining resource after removing the overlapping resource from the second resource, and the fourth resource includes 14 OFDM symbols in the time domain, where Except on symbols other than the OFDM symbol with index 7, the corresponding frequency domain unit includes all RBs with indexes 3 to 6; the corresponding frequency domain unit on the OFDM symbol with index 7 includes indexes 3, 4, and The three RBs of 6, where the two RBs with index 3 and index 4 form a continuous frequency domain unit, and occupy the largest resource on the OFDM symbol with index 7.
  • the RB with an index of 6 is determined to be the first continuous frequency domain unit. Because the frequency of the RB decreases in the order of the index number from small to large, the RB with a larger index number in the frequency domain corresponds to a lower frequency.
  • the relevant resource of the overlapping resource is the corresponding frequency domain on the OFDM symbol with index 7
  • the indexes on are three RBs from 3 to 5.
  • the determined third resource includes a total of 13 OFDM symbols with indexes 0 to 6, 8 to 13 in the time domain, and all RBs with indexes 3 to 6 in the frequency domain; and an OFDM symbol with index 7, so Corresponding to an RB with an index of 6 in the frequency domain (the first continuous frequency domain unit).
  • the continuous frequency domain unit with the smallest frequency determined by this method is used to transmit uplink data, so that the channel quality of the transmitted data is maximized under the premise of ensuring the use of continuous frequency domain resources on the first symbol, because generally speaking, the higher the frequency The lower the frequency domain unit is used for uplink transmission, the smaller the propagation loss of the corresponding wireless signal, the better the channel quality.
  • the OFDM symbol with index 7 includes two continuous frequency domain units, which are A continuous frequency domain unit composed of two RBs with index 2 and index 3, and a continuous frequency domain unit composed of two RBs with index 5 and index 6, here according to the principle of the lowest frequency as an example, it can be determined A continuous frequency domain unit composed of RBs with an index of 5 and an index of 6 is the first continuous frequency domain unit, and then it is determined that the relevant resource of the overlapping resource includes an OFDM symbol with an index of 7 in the time domain.
  • the domain includes three RBs with indexes 2 to 4, so it is determined that the third resource includes 13 OFDM symbols with indexes 0 to 6, 8 to 13 in the time domain, and includes indexes 2 to 13 in the frequency domain. All RBs of 6; and on the OFDM symbol with index 7, two RBs with index 5 and index 6 in the corresponding frequency domain (the first continuous frequency domain unit). That is, the first continuous frequency domain unit is the continuous frequency domain unit that occupies the largest resource on the first symbol in the fourth resource, and when there are multiple continuous frequency domain units with the same length and the largest resource, the first continuous frequency domain unit is determined The continuous frequency domain unit is the one with the lowest frequency among the multiple continuous frequency domain units with the largest resources.
  • the first continuous frequency domain unit may also be determined according to the principle of the highest frequency. Further, the first continuous frequency domain unit can also be determined by other predefined rules, so that a segment of continuous frequency domain unit can be uniquely determined from a plurality of continuous frequency domain units.
  • the overlapping resource includes at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain; the second resource removes the overlap.
  • the resource after the overlapped resource is the fourth resource, and the non-contiguous frequency domain units where the fourth resource does not exist on the second symbol, that is, all continuous frequency domain units, then the third resource is the first In the second resource, the remaining resources except for the related resources of the overlapping resources, the related resources of the overlapping resources include the overlapping resources on the second symbol, in other words, the second symbol on the fourth resource
  • the corresponding continuous frequency domain unit is reserved for transmitting uplink data.
  • the first indication information indicates that the first resource includes 7 OFDM symbols indexed in the time domain and three RBs indexed from 3 to 5 in the time domain; and the second resource is in the time domain.
  • Including the entire time slot that is, a total of 14 OFDM symbols with indexes 0 to 13, including all RBs with indexes 4 to 7 in the frequency domain; overlapping resources include the corresponding indexes on the OFDM symbols with index 7 in the time domain
  • the fourth resource is the remaining resource after removing the overlapping resources from the second resource.
  • the fourth resource includes 14 OFDM symbols in the time domain, except that the index is 7
  • the corresponding frequency domain unit includes all RBs indexed from 4 to 7; for the OFDM symbol with index 7, the corresponding frequency domain unit includes two indexed 6 and 7 RB, and form continuous frequency domain units.
  • the third resource is the second resource except that the index is the corresponding index on the 7 OFDM symbols.
  • the remaining resources after two RBs (overlapping resources) with index 4 and index 5.
  • the third resource includes a total of 13 OFDM symbols indexed from 0 to 6, 8 to 13 in the time domain.
  • the domain includes all RBs with indexes 4 to 7; and on the OFDM symbol with index 7, two RBs with index 6 and index 7 in the corresponding frequency domain.
  • a continuous frequency domain unit is reserved for uplink transmission. Data, thereby improving the transmission efficiency of uplink resources and the utilization of remaining resources.
  • case e and case b to case d may specifically include case e and case c, or a combination of case e and case b.
  • case e and case c may specifically include case e and case c, or a combination of case e and case b.
  • the following takes the combination of the above case e and the case c as an example for description.
  • the overlapping resources include at least one first symbol and at least one second symbol in the time domain
  • each first symbol and each second symbol The symbol includes at least one frequency domain unit in the frequency domain
  • the fourth resource is the resource after removing the overlapping resources from the second resource
  • the frequency domain corresponding to each first symbol and each second symbol is determined separately Whether the unit meets the above-mentioned various conditions, and respectively determine whether the corresponding frequency domain unit is reserved on each time domain symbol, and then determine the size of the third resource.
  • the first indication information indicates that the first resource includes two OFDM symbols with index 7 and index 4 in the time domain.
  • One symbol, the OFDM symbol with index 4 is the second symbol
  • the frequency domain unit reserved on the first symbol includes three RBs with indices 3 to 5, and the frequency domain unit reserved on the second symbol includes index 5 and Two RBs with an index of 6
  • the size of the overlapping resource is the same as the size of the first resource
  • the remaining resource after removing the overlapping resource from the second resource is the fourth resource
  • the fourth resource is
  • the time domain includes 14 OFDM symbols.
  • the index is determined to be 7 All RBs on the OFDM symbol (first symbol) are not used to transmit uplink data.
  • the OFDM symbol with index 4 in the fourth resource there is no discontinuous frequency domain unit, that is, three RBs with indexes 2 to 4 in the frequency domain form a continuous frequency domain unit. Therefore, on the OFDM symbol with index 4, the corresponding The continuous frequency domain units with indices 2 to 4 in the frequency domain can be used to transmit uplink data, as a part of the third resource, and the determined third resource includes indices 0 to 3, 5 to 6 in the time domain.
  • the terminal device does not determine the third resource according to the uplink data transmission mode, but only determines the third resource according to the first resource and the second resource.
  • the various situations included in the fourth possible implementation manner are the same as the implementation manners of the various situations in the foregoing third possible implementation manner, for example, specifically including the foregoing "case b" to "case f".
  • the specific implementation in each case please refer to the description of the foregoing embodiment, which will not be repeated here.
  • the terminal device further determines the third resource according to the overlap between the resource used to carry the reference signal in the second resource and the first resource. Taking into account the integrity of the reference signal, the transmission data and/or the time-domain continuity characteristics of the reference signal, it may affect the demodulation performance of the transmission data. Therefore, the terminal equipment also determines the difference between the resource carrying the reference signal in the second resource and the first resource. And/or the time domain continuity of the remaining resources after removing the first resource from the second resource, determine the third resource. Specifically, in this embodiment, a DMRS is taken as an example to illustrate the specific process of determining the third resource.
  • the terminal device determines the third resource according to the first resource and the second resource, if there are overlapping resources between the first resource and the second resource, the overlapping resource includes at least one first symbol in the time domain , Including at least one frequency domain unit in the frequency domain, the time unit where the first symbol is located is the first time unit, and the first time unit includes at least one frequency domain unit in the frequency domain, and A time unit carries the first reference signal.
  • the third resource is the remaining resource of the second resource excluding related resources of overlapping resources, and the related resources of the overlapping resources include the first resource in the time domain.
  • a time unit, including all frequency domain units corresponding to the first time unit in the frequency domain, and any one of the conditions includes:
  • Condition 1 The overlapping resource overlaps with the resource carrying the first reference signal in the first time unit, and the first reference signal includes DMRS or SRS;
  • Condition 2 The total number of symbols of the first symbol in the first time unit is greater than or equal to a first preset value, or the maximum number of consecutive first symbols in the first time unit is greater than or equal to the second default value;
  • Condition 3 Condition 1 and Condition 2, that is, the overlapping resource overlaps with the resource carrying the first reference signal in the first time unit, and the total number of symbols of the first symbol in the first time unit is greater than or equal to the first time unit.
  • the preset value or the number of consecutive first symbols in the first time unit is greater than or equal to the second preset value.
  • the first indication information indicates that the first resource includes two OFDM symbols with an index of 2 and an index of 3 in the time domain, And each OFDM symbol correspondingly includes two RBs with index 5 and index 6 in the time domain; the size of the overlapping resource is the same as the size of the first resource, and the time when the overlapping resource is located
  • a slot is a first time unit.
  • an OFDM symbol with an index of 2 in the time domain, and five RBs with an index of 2 to 6 in the frequency domain are resources used to carry DMRS.
  • the overlapping resource is two RBs with indexes 5 and 6 in the frequency domain corresponding to the OFDM symbol with index 2. It is determined that all frequency domain units corresponding to the first time unit are not used to transmit uplink data.
  • the first time unit may be the time slot where the overlapping resource is located, that is, the entire time slot is the relevant resource of the overlapping resource, and the third The resources are related resources of the second resource excluding the overlapping resources, and the third resource determined in this implementation manner is an empty set.
  • the first indication information indicates that the first resource includes a total of 4 OFDM symbols with indexes 4 to 7 in the time domain
  • the frequency domain resource corresponding to each OFDM symbol includes two RBs with index 5 and index 6, and the size of the overlapping resource is the same as the size of the first resource, and the time slot in which the overlapping resource is located is
  • the first time unit where the first time unit may be a time slot where the overlapping resource is located.
  • the OFDM symbol with an index of 2 in the time domain and the five RBs with an index of 2 to 6 in the frequency domain are resources for carrying DMRS.
  • the total number of symbols (4) of the first symbol in the first time unit is equal to the first preset value.
  • the third resource determined in this implementation is empty set.
  • the method further includes: when determining the third resource, it can also be determined whether the number of consecutive first symbols in the first time unit is greater than or equal to a second preset value, and if so, the first time unit corresponds to None of the frequency domain units are used for uplink transmission.
  • the number of symbols of the consecutive first symbol refers to the number of time domain symbols corresponding to the continuous time domain unit among all the time domain symbols of the first time unit.
  • the continuous time domain unit shown in FIG. 7j is composed of four OFDM symbols with indexes 4 to 7, so the number of symbols of the first continuous symbol is 4, and the second preset value is the same as the first preset value.
  • the setting value can be the same or different.
  • the first time unit may be a slot or a subframe, or may also be another time unit, which is not limited in this embodiment.
  • the “condition 3” is the intersection of the foregoing “condition 1" and “condition 2", that is, only when the "condition 1" and “condition 2" When both are satisfied, it is determined that all frequency domain units corresponding to the first time unit are not used for transmitting uplink data.
  • the terminal device determines the third resource according to the first resource and the second resource, if there are overlapping resources between the first resource and the second resource, the overlapping resource is in the time domain At least one second symbol is included, and at least one frequency domain unit is included in the frequency domain.
  • the third resource is excluded from the second resource
  • the remaining resources of the related resources of the overlapping resources include the at least one second symbol in the time domain and all frequency domain units corresponding to the at least one second symbol in the frequency domain.
  • the specific circumstances include the following:
  • the overlapping resource does not overlap with the resource carrying the first reference signal in the first time unit;
  • condition 2 the total number of symbols of the first symbol in the first time unit is less than the first preset value, or the number of consecutive first symbols in the first time unit The maximum value of is less than the second preset value;
  • condition 3 Another aspect of the above “condition 3”: the overlapping resources and the resources carrying the first reference signal in the first time unit do not overlap, and the total number of symbols of the first symbol in the first time unit is less than The first preset value or the maximum value of the number of consecutive first symbols in the first time unit is smaller than the second preset value.
  • the overlapping resource time domain includes three OFDM symbols with indexes 4 to 6, and the frequency domain corresponding to each OFDM symbol includes two OFDM symbols with index 5 and index 6.
  • RB the size of the overlapping resource is the same as the size of the first resource.
  • the time slot in which the overlapping resource is located is the first time unit, the OFDM symbol with index 2 in the time domain in the first time unit, and the RB with index 2 to 6 in the frequency domain are used to carry DMRS.
  • the third resource is the remaining resource after removing the related resources of the overlapping resource from the second resource, and it is determined that the third resource is a total of 11 including indexes 0 to 3, 7 to 13 in the time domain OFDM symbols, including all RBs with indexes 2 to 6 in the frequency domain.
  • the total number of symbols of the first symbol in the first time unit is less than a first preset value.
  • the total number of symbols of the first symbol in the first time unit shown in FIG. 7k is 3, assuming the first preset The value is 4, and the total number of symbols of the first symbol is less than the first preset value, then it is determined that all the three first symbols (three OFDM symbols with indices 4 to 6) in the first time unit correspond to None of the frequency domain units are used to transmit uplink data, and the third resource is a resource remaining after the second resource removes all frequency domain units corresponding to the three first symbols.
  • the first time unit it is determined whether the number of consecutive first symbols in the first time unit is less than a first preset value, and if the first time unit includes multiple continuous time domain units, each of the continuous time domain units If the unit is composed of at least one first symbol, a target continuous time domain unit is first determined in multiple continuous time domain units, and the target continuous time domain unit contains the largest number of first symbols, and then the target continuous time domain unit The number of first symbols corresponding to the unit is compared with the second preset value, and finally the size of the third resource is determined according to the comparison result.
  • the other aspect of the “condition 3” is another aspect of the foregoing "condition 1" and another aspect of the "condition 2". Intersection, that is, only when the other aspect of the "condition 1" and the other aspect of the "condition 2" are satisfied, it is determined that all frequency domain units corresponding to the second symbol are not used for transmitting uplink data.
  • the second resource includes time slot 1 and time slot 2.
  • 14 OFDM symbols with index 0 to index 13 are included.
  • the domain includes 5 RBs with index 2 to index 6; the overlapping resources are in slot 1 and slot 2, and the first indication information indicates that the first resource is an OFDM symbol with index 10 in slot 1
  • the corresponding two RBs with indexes 4 and 5 in the frequency domain, and, on the two OFDM symbols with indexes 2 and 3 in slot 2, the corresponding indexes in the frequency domain are 5 and 6. Of two RBs.
  • the size of the overlapping resource of the first resource and the second resource is the same as the size of the first resource, and the time slot 1 where the overlapping resource is located is the first time unit, and the time slot 2 is the second time unit.
  • the RBs with indexes 2 to 6 corresponding to the OFDM symbols with index 2 of the first time unit and the second time unit are used to carry DMRS, then when determining the third resource, each time unit is used to carry DMRS. Compare resources with overlapping resources.
  • the first time unit overlapping resources and resources carrying DMRS do not overlap, so all RBs on the OFDM symbol with index 10 in the first time unit are not used to transmit uplink data, that is, except for the aforementioned Except for all RBs on the OFDM symbol with index 10 in the first time unit, all RBs with indexes 2 to 6 on the remaining time domain symbols can be used to transmit uplink data.
  • the second time unit since the overlapped resource overlaps with the resource carrying the DMRS, the second time unit is not used to transmit uplink data, that is, the determined third resource includes time slot 1 in the time domain. There are a total of 13 OFDM symbols indexed from 0 to 9, 11 to 13, including all RBs indexed from 2 to 6 in the frequency domain.
  • the third resource includes the following beneficial effects:
  • This method ensures that the UE will All bearer DMRS resources are used to transmit demodulation reference signals, which not only guarantees data demodulation performance, but also avoids the waste of energy consumption caused by the UE still transmitting uplink data when the data cannot be demodulated correctly.
  • the related resources of the overlapping resources refer to all frequency units on at least one time domain symbol included in the overlapping resources. If the distance between the two divided resources is short, for example, less than or equal to the first preset value or the second preset value.
  • the resources carrying DMRS on some of the resources can not only be used for demodulation of this part of data, but also for demodulation of another part of data, so both parts of resources can continue to be used for data transmission; but If the distance between the two parts of resources after division is longer, for example, greater than the first preset value or the second preset value, the data demodulation performance of the part that does not include the DMRS will be severely degraded. Therefore, this embodiment sets all the time slots The resources are not used to transmit uplink data, which not only guarantees the data demodulation performance, but also avoids the waste of energy consumption caused by the UE still transmitting uplink data when the data cannot be demodulated correctly.
  • the method provided in this embodiment adopts a simplified way to determine the third resource after considering factors such as the size of the resource carrying the DMRS, constant power, and the total number of time-domain symbols corresponding to the overlapping resource. Not only is it easy to implement for the UE, but it also guarantees the UE's uplink data transmission performance.
  • the first indication information sent by the network device only includes the first resource.
  • the relevant resources of the overlapping resource are all frequency domain units on the indicated first symbol
  • the third resource is The remaining resources after removing the related resources of the overlapping resources from the second resource. For example, as shown in FIG.
  • the first indication information indicates that the first resource is an OFDM symbol with index 7 in the time domain, and related resources of the overlapping resource include an OFDM symbol with index 7 in the time domain, and Including five RBs with indexes 2 to 6, it is determined that the third resource is the remaining resource after removing the related resources of the overlapping resources in the second resource, that is, the third resource includes the index of There are a total of 13 OFDM symbols from 0 to 6, 8 to 13, and each OFDM symbol includes all RBs with indexes 2 to 6 in the frequency domain.
  • the terminal device may determine the third resource according to the uplink data transmission mode or not according to the uplink data transmission mode, and the reserved first resource may be indicated by the DCI mode, so that the overhead of the indication information is small, The indication speed is fast and the efficiency is high.
  • step 101 in this embodiment a specific manner of indicating the first resource in a bitmap manner is described in detail.
  • the first indication information may include one RB-level bitmap information (frequency domain) and one symbol-level bitmap information (time domain).
  • the UE can determine the reserved first resource according to the first indication information.
  • the RB-level bitmap is "0011100", and each bit represents an RB
  • the symbol-level bitmap is "00000001000000”, where Each bit represents an OFDM symbol in a slot; a bit value of "1" represents that the RB/symbol is an RB/symbol included in the reserved resource, and a bit value of "0" represents that the RB/symbol is not an RB included in the reserved resource /symbol.
  • the bitmap information at the RB level and the bitmap information at the symbol level both indicate a resource of "1", which is the first reserved resource.
  • the granularity (or bundling size) indicated by the RB-level bitmap may be an RB group, where one RBG may include multiple consecutive RBs, and in this case, each bit of the RB-level bitmap represents whether an RBG is It is the RBG included in the reserved resources; the range indicated by the symbol-level bitmap can be the bitmap of the symbols in one time slot, or the bitmap of the symbols in two or more time slots, at this time the symbol-level bitmap
  • the number of bits can be greater than or equal to 14 bits, for example, it can be 28 bits or more.
  • the indication information may also include slot-level bitmap information, and the period-level bitmap information together with the RB-level bitmap information and the symbol-level bitmap information indicate reserved resources.
  • each bit of the slot-level bitmap information represents "the period of a symbol-level bitmap".
  • the time slot-level bitmap information One bit represents one time slot; if the symbol level bitmap indicates the symbol bitmap in two time slots, then one bit in the time slot level bitmap information represents two time slots.
  • the time slot level indication information is "110".
  • the RB-level bitmap information, the symbol-level bitmap information, and the slot-level indication information all indicate a resource of "1", which is the first reserved resource.
  • the RB-level bitmap may be a bitmap based on a common RB grid, or a bitmap based on a UE partial bandwidth (BWP) RB grid.
  • BWP UE partial bandwidth
  • the manner in which the base station sends the first indication information may be public, such as being carried in a system information block (system information block, SIB) in a broadcast manner; it may also be sent through RRC signaling to each UE. Configured.
  • SIB system information block
  • the base station may configure multiple RB-symbol-level reserved resources for the UE; and the final reserved resource should be the union of multiple RB-symbol-level reserved resources.
  • the network device configures the terminal device with the reserved resources in the uplink transmission process through the first indication information, so that the terminal device is configured to overlap resources or overlap resources between the reserved first resource and the allocated second resource.
  • Uplink transmission is not performed on the related resources, and the remaining resources of the second resource excluding overlapping resources or related resources can continue to be used for uplink transmission, thereby effectively using transmission resources, not only avoiding transmission between terminal devices
  • the resources overlap each other, and the resource utilization rate is improved when the number of repeated transmissions in the uplink transmission process of the terminal device is large, and the transmission efficiency and reliability are improved.
  • this embodiment also provides a data transmission method, which is applied to a network device, such as a base station.
  • a network device such as a base station.
  • the method includes:
  • Step 201 The network device generates first indication information, where the first indication information is used to instruct the terminal device to reserve the first resource.
  • Step 202 The network device sends the first indication information to the terminal device.
  • the sending of the first indication information by the network device includes: sending by the network device broadcast or sending the first indication information through RRC signaling, and the first indication information may be indicated in a bitmap manner
  • the specific indication mode of the first resource refer to the description of the foregoing embodiment, which is not described in detail in this embodiment.
  • the method further includes: the network device sends the DCI, or the terminal device is configured with the second resource in a pre-configured manner, and the configuration of the second resource is not limited in this embodiment.
  • Step 203 The network device determines a third resource according to the first resource and the second resource, the second resource is a resource used for the terminal device to send uplink data, and the third resource is among the second resources Excluding overlapping resources or remaining resources related to overlapping resources, the overlapping resources are resources where the first resource and the second resource overlap.
  • Step 204 The network device receives the uplink data sent by the terminal device in the third resource.
  • the terminal device is a device with enhanced coverage or a device that needs to perform multiple transmissions, and/or the number of times the terminal device needs to perform repeated transmissions is greater than a preset number.
  • step 203 includes: the network device determines the third resource according to the first resource, the second resource, and a transmission mode of uplink data, wherein the uplink data
  • the transmission mode is the conversion precoding transmission mode.
  • step 203 includes: the network device determines the third resource according to the first resource, the second resource, and the uplink data transmission mode, and the third resource The resource is the remaining resource from the second resource excluding the overlapping resource, wherein the transmission mode of the uplink data is a non-transformed precoding transmission mode.
  • the overlapping resource includes at least one symbol in the time domain; wherein the related resource of the overlapping resource includes the at least one symbol in the time domain and the at least one symbol in the frequency domain All corresponding frequency domain resources; the third resource is a remaining resource in the second resource excluding related resources of the overlapping resource.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is a related resource excluding overlapping resources in the second resource
  • the relevant resources of the overlapping resources include all frequency domain units corresponding to the first symbol.
  • the fourth resource has a non-contiguous frequency domain unit on the first symbol
  • the fourth resource is the resource after the second resource removes the overlapping resource
  • the non-contiguous frequency domain unit is It means that there is at least one frequency domain unit spaced between the first frequency domain unit and the second frequency domain unit on the first symbol.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is a related resource excluding overlapping resources in the second resource
  • the related resources of the overlapping resources include other frequency domain units on the first symbol except for the first continuous frequency domain unit.
  • the fourth resource has a non-contiguous frequency domain unit on the first symbol
  • the fourth resource is the resource after the second resource removes the overlapping resource
  • the non-contiguous frequency domain unit is Refers to the presence of at least one frequency domain unit between the first frequency domain unit and the second frequency domain unit on the first symbol; the first continuous frequency domain unit is occupied by the first symbol in the fourth resource The continuous frequency domain unit with the largest resource, or the continuous frequency domain unit with the highest or lowest frequency on the first symbol in the fourth resource.
  • the overlapping resource includes at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is a related resource excluding overlapping resources in the second resource
  • the related resources of the overlapping resources include the overlapping resources on the second symbol.
  • the fourth resource does not have a non-contiguous frequency domain unit on the second symbol, and the fourth resource is the resource after removing the overlapping resource from the second resource, and the non-contiguous frequency domain unit It means that there is at least one frequency domain unit spaced between the first frequency domain unit and the second frequency domain unit on the second symbol.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain, and the time unit where the first symbol is located is the first time unit; the third The resource is the remaining resource in the second resource excluding the related resources of the overlapping resource.
  • the related resource of the overlapping resource includes the first time unit where the first symbol is located in the time domain, and includes the first time unit in the frequency domain. All frequency domain units corresponding to a time unit.
  • the overlapping resource overlaps with the resource carrying the first reference signal in the first time unit, and/or the total number of symbols of the first symbol in the first time unit is greater than or equal to the first preset Value, or the number of consecutive first symbols in the first time unit is greater than or equal to a second preset value.
  • the overlapping resource includes at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain, and the time unit in which the second symbol is located is the second time unit; the third The resource is the remaining resource in the second resource excluding related resources of the overlapping resource, and the related resource of the overlapping resource includes all frequency domain units corresponding to the second symbol in the frequency domain.
  • the total number of symbols of the second symbol in the second time unit is less than a first preset value
  • the maximum value of the number of consecutive second symbols in the second time unit is less than the second preset value
  • the various implementations of the network device determining the third resource based on the first resource and the second resource in this embodiment are the same as the foregoing various implementations of the terminal device determining the third resource (step 102), see The detailed description of the above various situations will not be repeated in this embodiment.
  • FIG. 10 is a schematic structural diagram of a data transmission device provided by an embodiment of this application.
  • the device may be the terminal device in the foregoing method embodiment, or a type of network device, or may also be a component located in the terminal device or network device, such as a chip. Further, the device can realize all the functions of the terminal device in the foregoing embodiment, or can also realize all the functions of the network device in the foregoing embodiment.
  • the device may include a receiving unit 1001, a processing unit 1002, and a sending unit 1003.
  • the device may also include a storage unit or other units or modules.
  • the receiving unit 1001 is used to receive first indication information from the network device, and the first indication information is used to indicate the first resource reserved by the terminal device;
  • the processing unit 1002 is used to The first resource and the second resource determine a third resource, the second resource is a resource for the terminal device to send uplink data, and the third resource is the second resource excluding overlapping resources or overlapping resources The remaining resources of the related resources of the resource, the overlapping resource is a resource where the first resource and the second resource overlap;
  • the sending unit 1003 is configured to send uplink data on the third resource.
  • the processing unit 1002 is specifically configured to determine the third resource according to the first resource, the second resource, and the uplink data transmission mode, wherein the uplink data The transmission mode is the conversion precoding transmission mode.
  • the processing unit 1002 is specifically configured to determine the third resource according to the first resource, the second resource, and the uplink data transmission mode, and the third resource The resource is the remaining resource from the second resource excluding the overlapping resource, wherein the transmission mode of the uplink data is a non-transformed precoding transmission mode.
  • the overlapping resource includes at least one symbol in the time domain; wherein the related resource of the overlapping resource includes the at least one symbol in the time domain, and includes all frequencies corresponding to the at least one symbol in the frequency domain.
  • Domain resource; the third resource is the remaining resource in the second resource excluding related resources of the overlapping resource.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is a related resource excluding overlapping resources in the second resource.
  • the relevant resources of the overlapping resources include all frequency domain units corresponding to the first symbol; wherein, the fourth resource has non-contiguous frequency domain units on the first symbol, and the fourth resource.
  • the non-contiguous frequency domain unit means that there is at least one interval between the first frequency domain unit and the second frequency domain unit on the first symbol Frequency domain unit.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is a related resource excluding overlapping resources in the second resource
  • the related resources of the overlapping resources include other frequency domain units on the first symbol except for the first continuous frequency domain unit; wherein, the fourth resource has a non-continuous frequency on the first symbol Domain unit, the fourth resource is the resource after removing the overlapping resources from the second resource, and the non-contiguous frequency domain unit refers to the presence of a first frequency domain unit and a second frequency domain unit on the first symbol
  • the frequency domain units are separated by at least one frequency domain unit; the first continuous frequency domain unit is the continuous frequency domain unit that occupies the largest resource on the first symbol in the fourth resource, or is the fourth resource The continuous frequency domain unit with the highest or lowest frequency on the first symbol.
  • the overlapping resource includes at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is a related resource excluding overlapping resources in the second resource.
  • the relevant resources of the overlapping resources include the overlapping resources on the second symbol; wherein, the fourth resource does not have a non-contiguous frequency domain unit on the second symbol, and the first The fourth resource is the resource after removing the overlapping resource from the second resource, and the non-contiguous frequency domain unit means that there is at least one interval between the first frequency domain unit and the second frequency domain unit on the second symbol Frequency domain unit.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain, and the time unit where the first symbol is located is the first time unit; the third The resource is the remaining resource in the second resource excluding the related resources of the overlapping resource.
  • the related resource of the overlapping resource includes the first time unit where the first symbol is located in the time domain, and includes the first time unit in the frequency domain.
  • the total number of symbols of one symbol is greater than or equal to the first preset value, or the number of consecutive first symbols in the first time unit is greater than or equal to the second preset value.
  • the overlapping resource includes at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain, and the time unit in which the second symbol is located is the second time unit; the third The resource is the remaining resource in the second resource excluding the related resources of the overlapping resource, and the related resource of the overlapping resource includes all frequency domain units corresponding to the second symbol in the frequency domain; wherein, the overlapping There is no overlap between the resource and the resource carrying the first reference signal in the second time unit; and/or, the total number of symbols of the second symbol in the second time unit is less than a first preset value, or, The maximum value of the number of consecutive second symbols in the second time unit is less than the second preset value.
  • the first preset value and the second preset value may be the same or different.
  • the device is a device with enhanced coverage or a device that needs to perform multiple transmissions, and/or the number of repeated transmissions is greater than a preset number.
  • the preset number of times is 8.
  • the processing unit 1002 is used to generate first indication information, and the first indication information is used to instruct the terminal equipment to reserve the first resource; the sending unit 1003 is used to send For the first indication information, the processing unit 1002 is further configured to determine a third resource according to the first resource and the second resource, and the receiving unit 1001 is configured to receive the uplink data sent by the terminal device in the third resource ,
  • the second resource is a resource used for the terminal device to send uplink data
  • the third resource is a remaining resource in the second resource excluding overlapping resources or related resources of overlapping resources
  • the overlapping Overlapping resources are resources where the first resource and the second resource overlap.
  • the processing unit 1002 is further configured to generate second indication information, where the second indication information is used to configure the second resource for the terminal device, and the second indication information may It is pre-configured to the terminal device, or dynamically configured and sent to the terminal device through the sending unit 1003.
  • the processing unit 1002 is specifically configured to determine the third resource according to the first resource, the second resource, and a transmission mode of uplink data, where the The transmission mode is the conversion precoding transmission mode.
  • the processing unit 1002 is specifically configured to determine the third resource according to the first resource, the second resource, and the uplink data transmission mode, and the third resource is In the second resource, the remaining resources excluding the overlapping resources, wherein the transmission mode of the uplink data is a non-transformed precoding transmission mode.
  • the overlapping resource includes at least one symbol in the time domain; wherein the related resource of the overlapping resource includes the at least one symbol in the time domain, and includes the symbol corresponding to the at least one symbol in the frequency domain. All frequency domain resources; the third resource is a remaining resource in the second resource excluding related resources of the overlapping resource.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is a related resource excluding overlapping resources in the second resource.
  • the relevant resources of the overlapping resources include all frequency domain units corresponding to the first symbol; wherein, the fourth resource has non-contiguous frequency domain units on the first symbol, and the fourth resource.
  • the non-contiguous frequency domain unit means that there is at least one interval between the first frequency domain unit and the second frequency domain unit on the first symbol Frequency domain unit.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is a related resource excluding overlapping resources in the second resource
  • the related resources of the overlapping resources include other frequency domain units on the first symbol except for the first continuous frequency domain unit.
  • the fourth resource has a non-contiguous frequency domain unit on the first symbol
  • the fourth resource is the resource after the second resource removes the overlapping resource
  • the non-contiguous frequency domain unit is Refers to the presence of at least one frequency domain unit between the first frequency domain unit and the second frequency domain unit on the first symbol; the first continuous frequency domain unit is occupied by the first symbol in the fourth resource The continuous frequency domain unit with the largest resource, or the continuous frequency domain unit with the highest or lowest frequency on the first symbol in the fourth resource.
  • the overlapping resource includes at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain; the third resource is a related resource excluding overlapping resources in the second resource.
  • the relevant resources of the overlapping resources include the overlapping resources on the second symbol; wherein, the fourth resource does not have a non-contiguous frequency domain unit on the second symbol, and the first The fourth resource is the resource after removing the overlapping resource from the second resource, and the non-contiguous frequency domain unit means that there is at least one interval between the first frequency domain unit and the second frequency domain unit on the second symbol Frequency domain unit.
  • the overlapping resource includes at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain, and the time unit where the first symbol is located is the first time unit; the third The resource is the remaining resource in the second resource excluding the related resources of the overlapping resource.
  • the related resource of the overlapping resource includes the first time unit where the first symbol is located in the time domain, and includes the first time unit in the frequency domain. All frequency domain units corresponding to a time unit; wherein the overlapping resource overlaps with the resource carrying the first reference signal in the first time unit, and/or, the first symbol in the first time unit
  • the total number of symbols in is greater than or equal to the first preset value, or the number of consecutive first symbols in the first time unit is greater than or equal to the second preset value.
  • the overlapping resource includes at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain, and the time unit in which the second symbol is located is the second time unit; the third The resource is the remaining resource in the second resource excluding the related resources of the overlapping resource, and the related resource of the overlapping resource includes all frequency domain units corresponding to the second symbol in the frequency domain; wherein, the overlapping The resource does not overlap with the resource carrying the first reference signal in the second time unit; and/or the total number of symbols of the second symbol in the second time unit is less than a first preset value, or the second time unit The maximum value of the number of consecutive second symbols in the time unit is less than the second preset value.
  • an embodiment of the present application also provides a communication device.
  • FIG. 11 is a schematic structural diagram of a communication device provided in an embodiment of the present application.
  • the communication device may be the network device in the foregoing embodiment, or a terminal device, or a component (such as a chip) that can be used in a terminal device.
  • the communication device can implement the functions or operations of the network device and the terminal device in the foregoing embodiments.
  • the communication device may include a transceiver 1101, a processor 1102, and a memory 1103, where the memory 1103 may be used to store code or data.
  • the transceiver 1101 may include components such as a receiver, a transmitter, and an antenna.
  • the communication device may also include more or fewer components, or a combination of certain components, or a different component arrangement, which is not limited in this application. .
  • the processor 1102 is the control center of the communication device. It uses various interfaces and lines to connect the various parts of the entire communication device. By running or executing the software program or module stored in the memory 1103, and calling the data stored in the memory 1103, Perform various functions of communication equipment or process data.
  • the processor 1102 may be composed of an integrated circuit (IC), for example, may be composed of a single packaged IC, or may be composed of connecting multiple packaged ICs with the same function or different functions.
  • the processor may only include a central processing unit (CPU), or a GPU, a digital signal processor (DSP), and a control chip (such as a baseband chip) in the transceiver module. combination.
  • the CPU may be a single computing core, or it may include multiple computing cores.
  • the processor 1102 includes a processing chip, and the processing chip may include one or more random access storage units, and the storage unit may be used to store instructions or computer programs.
  • the transceiver 1101 is used to establish a communication channel, so that a communication device is connected to a communication network through the communication channel, so as to realize communication transmission between the communication device and other devices.
  • the transceiver can be a module that completes the transceiver function.
  • the transceiver may include communication modules such as a wireless local area network (WLAN) module, a Bluetooth module, a baseband (baseband) module, and a radio frequency (RF) circuit corresponding to the communication device.
  • WLAN wireless local area network
  • Bluetooth communication infrared communication and/or cellular communication system communication, such as wideband code division multiple access (WCDMA) and/or high speed downlink packet access access, HSDPA).
  • WCDMA wideband code division multiple access
  • HSDPA high speed downlink packet access access
  • the transceiver is used to control the communication of each component in the communication device, and can support direct memory access (direct memory access).
  • various transceiver modules in the transceiver generally appear in the form of integrated circuit chips, and can be selectively combined, without including all transceiver modules and corresponding antenna groups.
  • the transceiver may only include a baseband chip, a radio frequency chip, and a corresponding antenna to provide communication functions in a cellular communication system.
  • the communication device can be connected to a cellular network or the Internet.
  • the memory 1103 may include a volatile memory (volatile memory), such as random access memory (random access memory, RAM), and may also include a non-volatile memory (non-volatile memory), such as flash memory (flash memory), Hard disk drive (HDD) or solid-state drive (SSD); the storage may also include a combination of the above types of storage.
  • volatile memory volatile memory
  • non-volatile memory non-volatile memory
  • flash memory flash memory
  • HDD Hard disk drive
  • SSD solid-state drive
  • Programs or codes or data may be stored in the memory, and the processor 1102 in the communication device can implement the functions of the communication apparatus by executing the programs or codes.
  • the processor 1102 and the transceiver 1101 may be separately or coupled to implement all or part of the steps in the data transmission method in the foregoing method embodiment.
  • the transceiver 1101 may receive first indication information from the network device, and the processor 1102 determines the third resource according to the first resource and the second resource. , And send uplink data on the third resource through the transceiver 1101, where the second resource is a resource for the terminal device to send uplink data, and the third resource is the second resource Excluding overlapping resources or remaining resources related to overlapping resources, the overlapping resources are resources where the first resource and the second resource overlap.
  • the processor 1102 When the communication device is used as the network device in the foregoing embodiment, such as a base station, the processor 1102 generates first indication information, where the first indication information is used to instruct the terminal device to reserve the first resource; it is sent through the transceiver 1101 According to the first indication information, the processor 1102 further determines a third resource according to the first resource and the second resource, where the third resource is the value of the second resource excluding overlapping resources or related resources of overlapping resources The remaining resources, and receiving the uplink data sent by the terminal device in the third resource through the transceiver 1101.
  • the functions to be implemented by the receiving unit 1001 and the transmitting unit 1003 in FIG. 10 may be implemented by the transceiver 1101 of the communication device, or implemented by the transceiver 1101 controlled by the processor 1102. What the processing unit 1002 is to implement The function can be implemented by the processor 1102.
  • the present application also provides a computer storage medium, where the computer storage medium may store a program, and the program may include some or all of the steps in each embodiment of the data transmission method provided in the present application when the program is executed.
  • the storage medium can be a magnetic disk, an optical disc, a read-only storage memory ROM, or a random storage memory RAM.
  • all or part of it may be implemented 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, such as switching 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 network node, computer, server, or data center. Transmission to another site, computer or server via wired or wireless means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a storage device such as a server or data center integrated with one or more available media.
  • the usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, an optical medium (such as a DVD), or a semiconductor medium, such as a solid state hard disk, SSD, etc.
  • the technology in the embodiments of the present application can be implemented by means of software plus a necessary general hardware platform. Based on this understanding, the technical solutions in the embodiments of the present application can be embodied in the form of a software product in essence or a part that contributes to the prior art.
  • the computer software product can be stored in a storage medium, such as ROM/RAM , Magnetic disks, optical disks, etc., including a number of instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé, un appareil et un dispositif de transmission de données. Le procédé comprend les étapes suivantes : un dispositif terminal reçoit des premières informations d'indication en provenance d'un dispositif de réseau, les premières informations d'indication étant utilisées pour indiquer une première ressource réservée par le dispositif terminal ; le dispositif terminal détermine, en fonction de la première ressource et d'une deuxième ressource, une troisième ressource, la deuxième ressource étant une ressource permettant d'envoyer des données de liaison montante au moyen du dispositif terminal, la troisième ressource étant une ressource restante, à l'exclusion d'une ressource de chevauchement ou d'une ressource associée de la ressource de chevauchement, dans la deuxième ressource, et la ressource de chevauchement étant une ressource dans laquelle la première ressource et la deuxième ressource se chevauchent ; et le dispositif terminal envoie, sur la troisième ressource, les données de liaison montante. Selon le procédé, un dispositif terminal détermine, au moyen d'une première ressource réservée et d'une deuxième ressource attribuée, une troisième ressource utilisée pour envoyer des données de liaison montante, ce qui permet d'utiliser efficacement une ressource de transmission et d'améliorer l'efficacité et la fiabilité de transmission.
PCT/CN2020/082354 2019-04-04 2020-03-31 Procédé, appareil et dispositif de transmission de données WO2020200193A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910270185.0 2019-04-04
CN201910270185.0A CN111787613B (zh) 2019-04-04 2019-04-04 一种数据传输方法、装置和设备

Publications (1)

Publication Number Publication Date
WO2020200193A1 true WO2020200193A1 (fr) 2020-10-08

Family

ID=72664999

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/082354 WO2020200193A1 (fr) 2019-04-04 2020-03-31 Procédé, appareil et dispositif de transmission de données

Country Status (2)

Country Link
CN (1) CN111787613B (fr)
WO (1) WO2020200193A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107071907A (zh) * 2016-12-29 2017-08-18 展讯通信（上海）有限公司 物理资源的配置方法及用户终端
WO2018012899A1 (fr) * 2016-07-13 2018-01-18 삼성전자 주식회사 Procédé et appareil pour émettre et recevoir un préambule d'accès aléatoire dans un système de communication cellulaire sans fil
US20180359781A1 (en) * 2017-06-09 2018-12-13 Samsung Electronics Co., Ltd Method and apparatus for facilitating coexistence of 4th and 5th generation communication systems
WO2019037695A1 (fr) * 2017-08-21 2019-02-28 华为技术有限公司 Procédé et appareil de communication

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108347318B (zh) * 2017-01-23 2021-02-12 华为技术有限公司 一种上行传输方法及装置
CN108667579B (zh) * 2017-03-30 2021-08-03 华为技术有限公司 一种数据发送方法、相关设备及系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018012899A1 (fr) * 2016-07-13 2018-01-18 삼성전자 주식회사 Procédé et appareil pour émettre et recevoir un préambule d'accès aléatoire dans un système de communication cellulaire sans fil
CN107071907A (zh) * 2016-12-29 2017-08-18 展讯通信（上海）有限公司 物理资源的配置方法及用户终端
US20180359781A1 (en) * 2017-06-09 2018-12-13 Samsung Electronics Co., Ltd Method and apparatus for facilitating coexistence of 4th and 5th generation communication systems
WO2019037695A1 (fr) * 2017-08-21 2019-02-28 华为技术有限公司 Procédé et appareil de communication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SAMSUNG: "Indication of Reserved Resources", 3GPP TSG RAN WG1 MEETING NR#3 R1-1716020, 21 September 2017 (2017-09-21), XP051339479, DOI: 20200616071711X *

Also Published As

Publication number Publication date
CN111787613A (zh) 2020-10-16
CN111787613B (zh) 2024-03-26

Similar Documents

Publication Publication Date Title
US11109357B2 (en) Semi-persistent scheduling method, network device, and terminal device
US10313073B2 (en) Transmission of reference signals
CN108347778B (zh) 通信方法及装置
EP2556617B1 (fr) Configuration de porteuse composante
WO2018059202A1 (fr) Procédé et dispositif de transmission d'informations
AU2019204282A1 (en) Allocation of communication resources for control signals in the uplink
WO2017084593A1 (fr) Procédé, dispositif et système de déclenchement de signaux de détection de liaison montante
US10117232B2 (en) Method and apparatus for signaling reference signals to a UE in an LTE system
WO2020164156A1 (fr) Procédé de détermination de largeur de bande d'émission, dispositif et support de stockage
WO2019191901A1 (fr) Procédé et dispositifs d'attribution de ressources dans un système de communication sans fil
WO2018081973A1 (fr) Procédé de transmission de signal, dispositif de terminal et dispositif de réseau
CN113950856A (zh) 一种通信方法、通信装置和系统
WO2022022257A1 (fr) Procédé et appareil de communication
US11405899B2 (en) Resource request sending method, user equipment, and base station
JP6847241B2 (ja) 情報送信方法および装置、ならびに情報受信方法および装置
CN114451017A (zh) 一种激活和释放非动态调度传输的方法及装置
WO2020200193A1 (fr) Procédé, appareil et dispositif de transmission de données
JPWO2019186983A1 (ja) 送信装置、受信装置、無線通信システム、及び無線通信方法
JP2020509637A (ja) 無線通信方法、端末装置とネットワーク装置
WO2021030996A1 (fr) Procédé de traitement de canal, dispositif terminal, et support d'informations
JP7416206B2 (ja) 上りリンク信号の送受信方法及び装置
WO2023123387A1 (fr) Procédé de détermination de taille de domaine d'indication d'attribution de ressources, dispositif terminal et dispositif réseau
WO2019157670A1 (fr) Procédé d'indication d'informations et dispositif associé
EP4115553A1 (fr) Dispositifs et procédés de prise en charge de modulation d'amplitude en quadrature 16 (qam) dans des transmissions à bande étroite
CN118140516A (zh) 一种资源分配指示域的确定方法及终端设备、网络设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20782374

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20782374

Country of ref document: EP

Kind code of ref document: A1