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WO2021114131A1 - Procédé de transmission de données, appareil terminal et appareil de réseau - Google Patents

Procédé de transmission de données, appareil terminal et appareil de réseau Download PDF

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Publication number
WO2021114131A1
WO2021114131A1 PCT/CN2019/124507 CN2019124507W WO2021114131A1 WO 2021114131 A1 WO2021114131 A1 WO 2021114131A1 CN 2019124507 W CN2019124507 W CN 2019124507W WO 2021114131 A1 WO2021114131 A1 WO 2021114131A1
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WIPO (PCT)
Prior art keywords
data
resource
terminal device
mapping relationship
mapping
Prior art date
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PCT/CN2019/124507
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English (en)
Chinese (zh)
Inventor
张鹏
王君
许华
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2019/124507 priority Critical patent/WO2021114131A1/fr
Priority to CN201980100254.1A priority patent/CN114365469B/zh
Publication of WO2021114131A1 publication Critical patent/WO2021114131A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications

Definitions

  • This application relates to the field of communications, and in particular to a data transmission method, terminal device and network device.
  • the transport block (TB) sent by the network device to the terminal device is encoded and modulated into a data signal, which is sent by the network device to the terminal device.
  • This data signal can also be received by other terminal devices and the data signal carrying this transmission block is forwarded to this terminal device through the side link, so as to improve the data receiving capability of the terminal device and the reliability of the received data.
  • the terminal device can only identify whether the data signal transmitted multiple times on the Uu interface (Uu) link comes from the same transmission block, or whether the data signal transmitted multiple times on the side link comes from the same transmission Block, where the Uu interface link is the link between the base station and the terminal device. Even if data signals from multiple links come from the same transmission block, the terminal device cannot combine these data signals. As a result, the data signals of different links cannot be combined, the success rate of the terminal device in recovering the transmission block is reduced, and the reliability of communication is reduced.
  • Uu Uu interface
  • the embodiments of the present application provide a data transmission method, a terminal device, and a network device, which are used to softly combine data signals received from a Uu interface link and a side link.
  • the first aspect provides a data transmission method, including:
  • the first terminal device uses the first resource to receive the first data sent by the network device, and then uses the second resource to receive the second data sent by the second terminal device.
  • the second resource and the first resource or the first data corresponding to the hybrid automatic reset The HARQ ID of the request process number meets the preset mapping relationship.
  • the mapping relationship is resource-to-resource mapping or HARQ ID-to-resource mapping, and it is determined that the first data and the second data belong to the same data. Possibility to improve the reliability of data transmission.
  • the mapping relationship is a time domain relationship, a frequency domain relationship, and/or a code domain relationship.
  • the first terminal device determines the second resource according to the mapping relationship and the first resource or HARQ ID.
  • the first terminal device determines the time difference between receiving the second data and receiving the first data, and if the time difference is less than or equal to the preset time difference, the first terminal device determines that the first data and the second data belong to Steps of the same data.
  • the time difference can be preset. If the second data is received within the preset time difference of receiving the first data, then the two data are determined to be the same data, if the time difference is received after the preset time difference Second data, then it is also considered that the second data and the first data do not belong to the same data.
  • the first terminal device soft-combines the first data and the second data, so that the success rate of restoring the transmission block will be greatly increased.
  • the first terminal device receives the high-level signaling configuration or the physical layer signaling configuration sent by the network device, and the high-level signaling configuration or the physical layer signaling configuration is used to indicate that the mapping relationship is configured so that the first terminal The device and the second terminal device can use the same mapping relationship.
  • mapping relationship is predefined by the protocol, and configuration is not required, which simplifies the process.
  • the first data and the second data belong to the same transmission block.
  • the second terminal device and the first terminal device belong to the same cooperative group, and the number of terminal devices in the cooperative group is greater than or equal to two.
  • the second aspect provides a data transmission method, including:
  • the second terminal device uses the first resource to receive the first data sent by the network device, and then determines the second resource according to the preset mapping relationship and the hybrid automatic repeat request process ID HARQ ID corresponding to the first resource or the first data, and the mapping The relationship is resource-to-resource mapping or HARQ ID-to-resource mapping, and the second resource is used to send second data to the first terminal device.
  • the second data and the first data belong to the same data, so the two pieces of data have the possibility of merging It can improve the reliability of data transmission.
  • the mapping relationship is a time domain relationship, a frequency domain relationship, and/or a code domain relationship.
  • the second terminal device receives the high-level signaling configuration or the physical layer signaling configuration sent by the network device, and the high-level signaling configuration or the physical layer signaling configuration is used to indicate the mapping relationship, and the mapping relationship is resource to resource Mapping or HARQ ID to resource mapping.
  • the mapping relationship is predefined by the protocol.
  • the first data and the second data belong to the same transmission block.
  • the second terminal device and the first terminal device belong to the same cooperative group, and the number of terminal devices in the cooperative group is greater than or equal to two.
  • a third aspect provides a data transmission method, including: a network device determines a mapping relationship, the mapping relationship is resource-to-resource mapping or HARQ ID-to-resource mapping, and then send high-level information to a first terminal device and a second terminal device respectively. Make configuration or physical layer signaling configuration, high-level signaling configuration or physical layer signaling configuration is used to indicate the mapping relationship, and use the first resource to send the first data to the first terminal device and the second terminal device, so that the first data is increased.
  • a terminal device can have the possibility of merging the two pieces of data, which can improve the reliability of data transmission.
  • the mapping relationship is a time domain relationship, a frequency domain relationship, and/or a code domain relationship.
  • a fourth aspect provides a first terminal device, including:
  • the transceiver module is configured to use the first resource to receive the first data sent by the network device.
  • the transceiver module is further configured to use the second resource to receive the second data sent by the second terminal device.
  • the hybrid automatic repeat request process ID HARQ ID corresponding to the second resource and the first resource or the first data satisfies the preset mapping relationship ,
  • the mapping relationship is resource-to-resource mapping or HARQ ID-to-resource mapping.
  • the processing module is used to determine that the first data and the second data belong to the same data.
  • the processing module is further configured to determine the second resource according to the mapping relationship and the first resource or HARQ ID.
  • the transceiver module is also used to determine the time difference between receiving the second data and receiving the first data.
  • the processing module executes the step of determining that the first data and the second data belong to the same data.
  • the processing module is also used to softly merge the first data and the second data.
  • the transceiver module is also used to receive high-level signaling configuration or physical layer signaling configuration sent by the network device, and the high-level signaling configuration or physical layer signaling configuration is used to indicate the mapping relationship.
  • a fifth aspect provides a second terminal device for data transmission, including:
  • the transceiver module is configured to use the first resource to receive the first data sent by the network device.
  • the processing module is used for the second terminal device to determine the second resource according to the preset mapping relationship and the HARQ ID corresponding to the first resource or the first data, and the mapping relationship is the mapping of the resource to the resource or the mapping of the HARQ ID to the resource.
  • the transceiver module is further configured to use the second resource to send second data to the first terminal device, where the second data and the first data belong to the same data.
  • the transceiver module is also used to receive high-level signaling configuration or physical layer signaling configuration sent by the network device.
  • the high-level signaling configuration or physical layer signaling configuration is used to indicate the mapping relationship, and the mapping relationship is resource Mapping to resources or HARQ ID to resources mapping.
  • a sixth aspect provides a network device, including: a processing module, configured to determine a mapping relationship, where the mapping relationship is resource-to-resource mapping or HARQ ID-to-resource mapping.
  • the transceiver module is used to send high-level signaling configuration or physical layer signaling configuration to the first terminal device and the second terminal device, respectively, and the high-level signaling configuration or physical layer signaling configuration is used to indicate the mapping relationship.
  • the transceiver module is further configured to use the first resource to send the first data to the first terminal device and the second terminal device respectively.
  • a seventh aspect provides a first terminal device, including: a transceiver, a memory, and a processor.
  • the transceiver is used to communicate with devices or equipment outside the processor.
  • the memory is used to store programs.
  • the processor is used to execute a program stored in the memory, and when the program is executed, the processor executes the steps of the method described in the first aspect.
  • An eighth aspect provides a second terminal device, including a transceiver, a memory, and a processor.
  • the transceiver is used to communicate with devices or equipment outside the processor.
  • the memory is used to store programs.
  • the processor is configured to execute a program stored in the memory, and when the program is executed, the processor executes the steps of the method described in the second aspect.
  • a ninth aspect provides a network device, including: a transceiver, a memory, and a processor.
  • the transceiver is used to communicate with devices or equipment outside the processor.
  • the memory is used to store programs.
  • the processor is used to execute a program stored in the memory, and when the program is executed, the processor executes the steps of the method described in the third aspect.
  • a tenth aspect provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the steps of the method described in the first aspect.
  • An eleventh aspect provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the steps of the method described in the second aspect.
  • the twelfth aspect provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the steps of the method described in the third aspect.
  • the first terminal device uses the first resource to receive the first data sent by the network device, and then uses the second resource that satisfies the preset mapping relationship with the first resource to receive the second data sent by the second terminal device, And it is determined that the first data and the second data belong to the same data, so the two pieces of data have the possibility of merging, which can improve the reliability of data transmission.
  • FIG. 1 is a schematic diagram of a possible application scenario of an embodiment of the application
  • FIG. 2 is a schematic diagram of an embodiment of a data transmission method provided by this application.
  • FIG. 3 is a schematic diagram of an embodiment of a data transmission method provided by this application.
  • FIG. 4 is a schematic diagram of an embodiment of a data transmission method provided by this application.
  • FIG. 5 is a schematic diagram of an embodiment of a data transmission method provided by this application.
  • FIG. 6 is a schematic diagram of an embodiment of a first terminal device provided by an embodiment of this application.
  • FIG. 7 is a schematic diagram of an embodiment of a second terminal device provided by an embodiment of this application.
  • FIG. 8 is a schematic diagram of an embodiment of a network device provided by an embodiment of this application.
  • FIG. 9 is a schematic diagram of an embodiment of a first terminal device according to an embodiment of the application.
  • FIG. 10 is a schematic diagram of an embodiment of a second terminal device provided by an embodiment of this application.
  • FIG. 11 is a schematic diagram of an embodiment of a network device provided by an embodiment of this application.
  • Fig. 1 is a schematic diagram of a possible application scenario of an embodiment of the present application.
  • the application scenario may include multiple terminal devices and network devices.
  • the terminal device may be a mobile terminal
  • the network device may be an access network device.
  • a network device communicates with multiple terminal devices through uplink and downlink, and multiple terminal devices can form a user cooperation group, and the terminal devices in a cooperation group can also communicate with each other.
  • the network device sends information to the user cooperation group.
  • Both the first terminal device and the second terminal device can receive information through the Uu link, and the second terminal device can also forward the received information to the first terminal through the side link Device, the first terminal device receives two copies of the same data on the Uu link and the side link respectively.
  • the first terminal device can also send an information request to the second terminal device when the reception fails or cannot establish a communication link with the network device, and receive the information relayed from the second terminal device, so as to complete the interaction of each terminal device in the cooperation group. Collaboration between.
  • the embodiments of the present application are not only applicable to cooperation between terminal devices, but also applicable to terminal device relay (UE relay).
  • the first terminal device or the second terminal device involved in this application may include various devices with wireless communication functions or units, components, modules, devices, chips, or system-level chips in this device ( System-on-a-Chip, SOC), the device with wireless communication function may be, for example, a vehicle-mounted device, a wearable device, a computing device or other devices connected to a wireless modem, a mobile station (MS), a terminal (terminal) or user equipment (user equipment, UE), etc.
  • MS mobile station
  • terminal terminal
  • UE user equipment
  • the in-vehicle terminal device can be regarded as a part of the vehicle, and can also be regarded as a module or a module installed in the vehicle.
  • the in-vehicle terminal device can also be called It is an onboard unit (OBU).
  • OBU onboard unit
  • the first terminal device or the second terminal device involved in the embodiments of the present application may also include devices that provide users with voice and/or data connectivity. Specifically, they include devices that provide users with voice, or include devices that provide users with data connectivity. Sexual devices, or include devices that provide users with voice and data connectivity. For example, it may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem.
  • the terminal device can communicate with the core network via a radio access network (RAN), exchange voice or data with the RAN, or exchange voice and data with the RAN.
  • RAN radio access network
  • the terminal device may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, vehicle to everything (V2X) terminal equipment , Machine-to-machine/machine-type communications (M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit, subscriber station (subscriber) station), mobile station (mobile station), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user Agent (user agent), or user equipment (user device), etc.
  • UE user equipment
  • M2M/MTC Machine-to-machine/machine-type communications
  • IoT Internet of things
  • subscriber unit subscriber station (subscriber) station)
  • mobile station mobile station
  • remote station remote station
  • access point access point
  • AP remote terminal
  • remote terminal remote terminal
  • access terminal access terminal
  • user terminal user terminal
  • user Agent
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket-sized, hand-held, mobile devices with built-in computers, and so on.
  • PCS personal communication service
  • PCS cordless phones
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the first terminal device or the second terminal device involved in the embodiment of the present application may also be a wearable device.
  • Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • Use such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the terminal device may be a terminal device, or a module for realizing the functions of the terminal device.
  • the module may be set in the terminal device or may be set independently of the terminal device.
  • the module may be, for example, a chip, a chip system, or System on chip, etc.
  • Network devices such as access network (AN) equipment, such as base stations (e.g., access points), may refer to those that communicate with wireless terminal equipment through one or more cells on the air interface in the access network.
  • the device or, for example, a network device in a vehicle-to-everything (V2X) technology is a road side unit (RSU).
  • the base station can be used to convert received air frames and IP packets into each other, and act as a router between the terminal device and the rest of the access network, where the rest of the access network can include the IP network.
  • the RSU can be a fixed infrastructure entity that supports V2X applications, and can exchange messages with other entities that support V2X applications.
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network device may include a long term evolution (LTE) system or an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution-advanced (LTE-A) system, or may comprise a fifth generation mobile communication technology (the 5 th generation, 5G) a new air interface (new radio, NR) system (also referred to as NR system) Next Generation node B (next generation node B, gNB ) or else It may include a centralized unit (CU) and a distributed unit (DU) in a cloud radio access network (Cloud RAN) system, which is not limited in the embodiment of the present application.
  • LTE long term evolution
  • LTE-A long term evolution-advanced
  • LTE-A long term evolution-advanced
  • LTE-A long term evolution-advanced
  • 5G 5 th generation
  • the uplink refers to the link through which the terminal device transmits information to the network device
  • the downlink refers to the link through which the terminal device receives information from the network device.
  • first and second are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance.
  • the first power control factor and the second power control factor are only for distinguishing different power control factors, and do not necessarily indicate the difference in content, priority, or importance of the two power control factors.
  • next-generation communication system which can significantly increase the capacity of the system and the coverage of the network, and at the same time reduce the load on the base station side.
  • the transmission block sent by the base station to the terminal device will be encoded and modulated into a data signal, which is sent by the base station to the terminal device.
  • This data signal can also be received by other terminal devices and the data signal carrying this transmission block is forwarded to this terminal device through the side link, so as to improve the data receiving capability of the terminal device and the reliability of the received data.
  • the terminal device can only identify whether the data signal transmitted multiple times on the Uu interface link comes from the same transmission block, or whether the data signal transmitted multiple times on the side link comes from the same transmission block.
  • the Uu interface The link is the link between the base station and the terminal device. Even if data signals from multiple links come from the same transmission block, the terminal device cannot combine these data signals. As a result, the data signals of different links cannot be combined, the success rate of the terminal device in recovering the transmission block is reduced, and the reliability of communication is reduced.
  • the first terminal device uses the first resource to receive the first data sent by the network device, and then uses the second resource that satisfies the preset mapping relationship with the first resource to receive the second data sent by the second terminal device, And it is determined that the first data and the second data belong to the same data, so the two pieces of data have the possibility of merging, which can improve the reliability of data transmission.
  • an embodiment of a data transmission method provided for this application includes:
  • a first terminal device uses a first resource to receive first data sent by a network device.
  • the first terminal device uses the second resource to receive the second data sent by the second terminal device, and the hybrid automatic repeat request process ID HARQ ID corresponding to the second resource and the first resource or the first data satisfies the preset mapping relationship ,
  • the mapping relationship is resource-to-resource mapping or HARQ ID-to-resource mapping.
  • the first terminal device determines that the first data and the second data belong to the same data.
  • the first terminal device uses the first resource to receive the first data sent by the network device, and then uses the second resource that satisfies the preset mapping relationship with the first resource to receive the second data sent by the second terminal device, And it is determined that the first data and the second data belong to the same data, so the two pieces of data have the possibility of merging, which can improve the reliability of data transmission.
  • FIG. 3 is an embodiment of a data transmission method provided by this application, including:
  • the network device determines a mapping relationship, and the mapping relationship is a resource-to-resource mapping.
  • the network device needs to first Configure the mapping relationship.
  • the mapping relationship is a resource-to-resource mapping.
  • the mapping relationship may include the corresponding relationship between two non-empty sets and their elements.
  • the two non-empty sets respectively represent the value ranges of the two resources
  • the corresponding relationship is a one-to-one or many-to-one correspondence between the elements of the two non-empty sets, which is not limited here.
  • the corresponding relationship can be a one-to-one relationship:
  • the resource may be at least one of time domain resources, frequency domain resources, or code domain resources or a combination thereof, such as a data block (resource block, RB) or resource element (resource element) of a time-frequency resource. , RE).
  • mapping relationships are described separately. It is assumed that one of the mapping relationships is:
  • x be the value of the symbol in the time domain of the first resource
  • k is a constant representing time slot, millisecond or symbol.
  • y represents the symbols in the full frequency domain and the full code domain under the k-th symbol after x, and both can be the second resource.
  • x be the code domain resource number of the first resource
  • f(x) x+k
  • k is the number of codes in a preset order, which is a constant.
  • the calculation of the second resource may not only consider one of the time domain resource, the frequency code resource, or the code domain resource, but also any combination of the three, which is not limited here.
  • this mapping relationship may also be predefined through a protocol, and does not need to be configured through high-level signaling or physical layer signaling, which is not limited here.
  • the network device sends a high-level signaling configuration or a physical layer signaling configuration to the first terminal device and the second terminal device, respectively, and the high-level signaling configuration or the physical layer signaling configuration is used to indicate the mapping relationship.
  • the first terminal device and the second terminal device belong to the same cooperation group, and the number of terminal devices in the cooperation group is greater than or equal to two.
  • the first terminal device is the target terminal device
  • the second terminal device is the cooperative terminal device. That is to say, the target of the network device sending data is the first terminal device, although it is also sent to the second terminal device at the same time, so that the second terminal device forwards the data to the first terminal device through the side link, so the network device needs to be separately Send the high-level signaling configuration or the physical layer signaling configuration to the first terminal device and the second terminal device.
  • the high-level signaling configuration or the physical layer signaling configuration is used to indicate the mapping relationship, so that the first terminal device receives the Uu interface link
  • the received data signal and the data signal received from the side link are softly combined to improve the reliability of data transmission.
  • the network device uses the first resource to send the first data to the first terminal device and the second terminal device respectively.
  • the network device can use the first resource to send the first data to the first terminal device and the second terminal device respectively through the Uu interface, then the first terminal device and the second terminal device receive the data on the first resource The first data. It should be noted that the network device may send the first data in the form of sending a transmission block.
  • the first terminal device determines the second resource according to the mapping relationship and the first resource.
  • the second terminal device determines the second resource according to the mapping relationship and the first resource.
  • the second resource may be determined according to the first resource and the mapping relationship. Specifically, please refer to the description of the mapping relationship in step 301.
  • the second terminal device serves as the assisting terminal device
  • the received first data needs to be forwarded to the first terminal device as the target terminal device.
  • the second terminal device and the first terminal device need to determine the same resource, that is, the second resource, and transmit the content of the first data on the second resource. Therefore, the first terminal device and the second terminal device need to obtain the same mapping relationship to determine the same second resource according to the first resource.
  • the second terminal device uses the second resource to send second data to the first terminal device, where the second data and the first data belong to the same data.
  • the second terminal device after the second terminal device determines the second resource, it sends the second data to the first terminal device through the side link, where the second data and the first data belong to the same data, that is, they belong to The same transmission block, or its data structure or form is different, or the protocol used is different, but the information it carries is the same.
  • the first terminal device determines that the first data and the second data belong to the same data.
  • the first terminal device When the first terminal device receives the second data on the second resource, it is determined that the second data and the first data are the same data, and in some feasible embodiments, the same transmission block.
  • the time difference can be preset. If the first data is received within the preset time difference If the second data is received, it is determined that the two are the same data. If the second data is received after the preset time difference, then it is also considered that the second data and the first data do not belong to the same data.
  • the first terminal device softly merges the first data and the second data.
  • the first terminal device may merge the first data and the second data.
  • the merging manner may be to merge a part of the two pieces of data or merge the two pieces of data.
  • the first terminal device performs joint processing on the first data and the second data, and the signal-to-interference-to-noise ratio after the joint processing is higher than that of the single-division data signal, and the success rate of recovering the transmission block from the combined data signal will be greatly increased.
  • the first terminal device may also combine multiple data signals belonging to the same data from the first network device.
  • the first data and the second data belong to the same data, which means that the first data and the second data are from the same data. Transmission block, or the same source data or the same original data.
  • the first terminal device may also combine multiple data signals from the same transmission block, the same source data, or the same original data from the second terminal device.
  • the data merged and processed by the first terminal device is not limited to data from the network device and the terminal device respectively.
  • the first terminal device may also perform merging processing on multiple signals from the same data from the base station, or merge processing on multiple signals from the same data from the second terminal device, or may perform merging processing on multiple signals from different terminal devices, for example,
  • the multiple signals from the same data of the second terminal device and the third terminal device are combined to obtain beneficial effects.
  • the same data refers to the same transmission block, the same source data, or the same original data.
  • the first terminal device uses the first resource to receive the first data sent by the network device, and then uses the second resource that satisfies the preset mapping relationship with the first resource to receive the second data sent by the second terminal device, And it is determined that the first data and the second data belong to the same data, so the two pieces of data have the possibility of merging, which can improve the reliability of data transmission.
  • mapping relationship can not only be resource-to-resource mapping, but also HARQ ID-to-resource mapping.
  • FIG. 4 is an embodiment of a data transmission method provided by this application, including:
  • the network device determines a mapping relationship, and the mapping relationship is a mapping from HARQ ID to resource.
  • the network equipment needs to first Configure the mapping relationship.
  • the mapping relationship is the mapping of HARQ ID to resource.
  • the mapping relationship may include the corresponding relationship between two non-empty sets and their elements.
  • the two non-empty sets respectively represent the value ranges of the two resources
  • the corresponding relationship is a one-to-one or many-to-one correspondence between the elements of the two non-empty sets, which is not limited here.
  • the element of non-empty set 1 is HARQ ID 1/2/3
  • the element of non-empty set 2 is resource 3/4/5
  • the corresponding relationship can be a one-to-one relationship:
  • the network device sends a high-level signaling configuration or a physical layer signaling configuration to the first terminal device and the second terminal device, respectively, and the high-level signaling configuration or the physical layer signaling configuration is used to indicate the mapping relationship.
  • Step 402 is the same as step 302, and will not be repeated here.
  • the network device sends the first data to the first terminal device and the second terminal device respectively.
  • the network device may send the first data to the first terminal device and the second terminal device respectively through the Uu interface, and the first terminal device and the second terminal device receive the first data on the first resource. It should be noted that the network device may send the first data in the form of sending a transmission block.
  • the first terminal device determines the second resource according to the mapping relationship and the HARQ ID corresponding to the first data.
  • the second terminal device determines the second resource according to the mapping relationship and the HARQ ID corresponding to the first data.
  • the second resource can be determined according to the HARQ ID corresponding to the first data and the mapping relationship. Specifically, please refer to the description of the mapping relationship in step 401.
  • the second terminal device serves as the assisting terminal device
  • the received first data needs to be forwarded to the first terminal device as the target terminal device.
  • the second terminal device and the first terminal device need to determine the same resource, that is, the second resource, and transmit the content of the first data on the second resource. Therefore, the first terminal device and the second terminal device need to obtain the same mapping relationship to determine the same second resource according to the HARQ ID corresponding to the first data.
  • the second terminal device uses the second resource to send second data to the first terminal device, where the second data and the first data belong to the same data.
  • the first terminal device determines that the first data and the second data belong to the same data.
  • the first terminal device performs soft merge on the first data and the second data.
  • Steps 406-408 are the same as steps 306-308, and will not be repeated here.
  • the first terminal device uses the first resource to receive the first data sent by the network device, and then uses the HARQ ID corresponding to the first data to receive the second resource that satisfies the preset mapping relationship to receive the second terminal device. It is determined that the first data and the second data belong to the same data, so the two pieces of data have the possibility of merging, which can improve the reliability of data transmission.
  • the first terminal device after receiving the first data, the first terminal device does not need to determine the second resource, but listens on the side link.
  • FIG. 5 is an embodiment of a data transmission method provided by this application, including:
  • the network device determines a mapping relationship, and the mapping relationship is resource-to-resource mapping or HARQ ID-to-resource mapping.
  • step 301/401 For details, please refer to step 301/401, which will not be repeated here.
  • the network device sends a high-layer signaling configuration or a physical layer signaling configuration to the first terminal device and the second terminal device, respectively, and the high-layer signaling configuration or the physical layer signaling configuration is used to indicate the mapping relationship.
  • Step 502 is the same as step 302/402, and will not be repeated here.
  • the network device sends the first data to the first terminal device and the second terminal device respectively.
  • step 303/403 please refer to step 303/403, which will not be repeated here.
  • the second terminal device determines the second resource according to the mapping relationship and the HARQ ID corresponding to the first data.
  • step 305/405 please refer to step 305/405, which will not be repeated here.
  • the first terminal device monitors the side link to receive the second data.
  • the first terminal device after the first terminal device receives the first data, it does not determine the second resource, but monitors the side link.
  • the second terminal device uses the second resource to send second data to the first terminal device, where the second data and the first data belong to the same data.
  • step 306/406 which will not be repeated here.
  • the first terminal device determines that the second resource receiving the second data and the HARQ ID corresponding to the first resource/first data conform to a mapping relationship.
  • the first terminal device determines that the first data and the second data belong to the same data.
  • the first terminal device performs soft merge on the first data and the second data.
  • Steps 508-509 are the same as steps 307-308/407-408, and will not be repeated here.
  • the first terminal device uses the first resource to receive the first data sent by the network device, then monitors the side link to receive the second data, and detects the second resource and the first data used to receive the second data Whether the corresponding HARQ ID or the first resource receiving the first data meets the preset mapping relationship, if so, it is determined that the first data and the second data belong to the same data, so the two pieces of data have the possibility of merging, which can improve Reliability of data transmission.
  • a first terminal device 600 provided in an embodiment of this application includes:
  • the transceiver module 601 is configured to use the first resource to receive the first data sent by the network device.
  • the transceiver module 601 is further configured to use the second resource to receive the second data sent by the second terminal device.
  • the hybrid automatic repeat request process number HARQ ID corresponding to the second resource and the first resource or the first data satisfies the preset mapping Relationship, the mapping relationship is resource-to-resource mapping or HARQ ID-to-resource mapping.
  • the processing module 602 is configured to determine that the first data and the second data belong to the same data.
  • the processing module 602 is further configured to determine the second resource according to the mapping relationship and the first resource or HARQ ID.
  • the transceiver module 601 is also used to determine the time difference between receiving the second data and receiving the first data.
  • the processing module 602 executes the step of determining that the first data and the second data belong to the same data.
  • the processing module 602 is also used to softly merge the first data and the second data.
  • the transceiver module 601 is also configured to receive high-level signaling configuration or physical layer signaling configuration sent by the network device, and the high-level signaling configuration or physical layer signaling configuration is used to indicate the mapping relationship.
  • a second terminal device 700 provided by an embodiment of this application includes:
  • the transceiver module 701 is configured to use a first resource to receive first data sent by a network device.
  • the processing module 702 is configured for the second terminal device to determine the second resource according to the preset mapping relationship and the HARQ ID corresponding to the first resource or the first data, and the mapping relationship is resource-to-resource mapping or HARQ ID-to-resource mapping.
  • the transceiver module 701 is further configured to use the second resource to send second data to the first terminal device, where the second data and the first data belong to the same data.
  • the transceiver module 701 is also used to receive high-level signaling configuration or physical layer signaling configuration sent by a network device.
  • the high-level signaling configuration or physical layer signaling configuration is used to indicate the mapping relationship, and the mapping relationship is Resource to resource mapping or HARQ ID to resource mapping.
  • a network device 800 provided by an embodiment of this application includes: a processing module 801 configured to determine a mapping relationship, and the mapping relationship is resource-to-resource mapping or HARQ ID-to-resource mapping.
  • the transceiver module 802 is configured to send high-level signaling configuration or physical layer signaling configuration to the first terminal device and the second terminal device, respectively, and the high-level signaling configuration or physical layer signaling configuration is used to indicate the mapping relationship.
  • the transceiver module 802 is further configured to use the first resource to send the first data to the first terminal device and the second terminal device respectively.
  • a first terminal device 900 provided in an embodiment of this application includes: a transceiver 901, a memory 902, and a processor 903.
  • the transceiver 901 is used to communicate with a device or device external to the processor 903.
  • the memory 902 is used to store programs.
  • the processor 903 is configured to execute a program stored in the memory. When the program is executed, the processor 903 executes the steps executed by the first terminal device 900 described above.
  • a second terminal device 1000 provided in an embodiment of this application includes: a transceiver 1001, a memory 1002, and a processor 1003.
  • the transceiver 1001 is used to communicate with devices or equipment external to the processor 1003.
  • the memory 1002 is used to store programs.
  • the processor 1003 is configured to execute a program stored in the memory 1002, and when the program is executed, the processor executes the steps executed by the second terminal device 1000 described above.
  • a second terminal device 1100 provided in an embodiment of this application includes: a transceiver 1101, a memory 1102 and a processor 1103.
  • the transceiver 1101 is used to communicate with devices or equipment external to the processor 1103.
  • the memory 1102 is used to store programs.
  • the processor 1103 is configured to execute a program stored in the memory 1102, and when the program is executed, the processor 1103 executes the steps executed by the aforementioned network device 1100.
  • the first terminal device uses the first resource to receive the first data sent by the network device, and then uses the second resource that satisfies the preset mapping relationship with the first resource to receive the second data sent by the second terminal device, And it is determined that the first data and the second data belong to the same data, so the two pieces of data have the possibility of merging, which can improve the reliability of data transmission.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • wired such as coaxial cable, optical fiber, digital subscriber line (DSL)
  • wireless such as infrared, wireless, microwave, etc.
  • the computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .

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

Abstract

Sont divulgués un procédé d'adaptation de débit et un équipement utilisateur utilisés pour fusionner progressivement des signaux de données reçus en provenance d'une liaison d'interface Uu et d'une liaison latérale. Au cours du procédé d'après les modes de réalisation de la présente invention, un premier appareil terminal reçoit des premières données envoyées par un appareil de réseau en utilisant une première ressource et des secondes données envoyées par un second appareil terminal en utilisant une seconde ressource. Les seconde et première ressources satisfont une relation de correspondance prédéfinie. Puis les premières et secondes données sont déterminées comme étant identiques. Elles peuvent donc être fusionnées. La fiabilité d'une transmission de données peut être améliorée.
PCT/CN2019/124507 2019-12-11 2019-12-11 Procédé de transmission de données, appareil terminal et appareil de réseau Ceased WO2021114131A1 (fr)

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CN201980100254.1A CN114365469B (zh) 2019-12-11 2019-12-11 一种数据传输方法、终端装置和网络装置

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