WO2018171605A1 - Procédé de réception d'informations et appareil associé, et procédé d'envoi d'informations et appareil associé - Google Patents

Procédé de réception d'informations et appareil associé, et procédé d'envoi d'informations et appareil associé Download PDF

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Publication number
WO2018171605A1
WO2018171605A1 PCT/CN2018/079722 CN2018079722W WO2018171605A1 WO 2018171605 A1 WO2018171605 A1 WO 2018171605A1 CN 2018079722 W CN2018079722 W CN 2018079722W WO 2018171605 A1 WO2018171605 A1 WO 2018171605A1
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WIPO (PCT)
Prior art keywords
resource
downlink service
indication information
occupied
terminal device
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PCT/CN2018/079722
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English (en)
Chinese (zh)
Inventor
马蕊香
吕永霞
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华为技术有限公司
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Publication of WO2018171605A1 publication Critical patent/WO2018171605A1/fr

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    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1215—Wireless traffic scheduling for collaboration of different radio technologies
    • 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

Definitions

  • the present application relates to the field of communications, and more particularly to a method and apparatus for receiving information, and a method and apparatus for transmitting information.
  • 5G mobile communication systems need to support enhanced mobile broadband (eMBB) services, ultra reliable and low latency communications (URLLC) services, and mass machine type communications (mMTC) services. .
  • eMBB enhanced mobile broadband
  • URLLC ultra reliable and low latency communications
  • mMTC mass machine type communications
  • Typical eMBB services include: ultra high definition video, augmented reality (AR), virtual reality (VR), etc.
  • the main features of these services are large amount of transmitted data and high transmission rate.
  • Typical URLLC services include wireless control in industrial manufacturing or production processes, motion control for driverless and drones, and tactile interaction applications such as remote surgery.
  • the main features of these services are ultra-high reliability and low latency.
  • the amount of transmitted data is small and bursty.
  • Typical mMTC services include: smart grid distribution automation, smart city, etc.
  • the main features are huge number of networked devices, small amount of transmitted data, and insensitive data transmission delay. These mMTC terminals need to meet low cost and very long standby. The demand for time.
  • the present application provides a method for receiving information, a device thereof, and a method for transmitting the same, and a device thereof, which can simultaneously support data transmission requirements of a plurality of different services.
  • the first aspect provides a method for transmitting information, where the method is performed by a terminal device, for example, the terminal device receives first indication information sent by the network device, where the first indication information indicates a first resource, and the terminal device And receiving, by the network device, the second indication information, where the second indication information indicates that part or all of the downlink resources that are scheduled to be sent to the first downlink service are occupied by the second downlink service; and the terminal device determines, according to the second indication information, The second resource occupied by the uplink feedback information corresponding to the second downlink service; the terminal device sends uplink information on the third resource, where the third resource is a part of the first resource other than the fourth resource Or all, the fourth resource is a resource in which the first resource overlaps with the second resource.
  • the second indication information includes resource location information of the second resource.
  • the second indication information includes the resource location information of the second resource of the terminal device, so as to ensure that the terminal device can avoid the second resource and send the uplink information only on the third resource.
  • the method provided by the embodiment of the present application indicates that the terminal device that is transmitting or transmitting the uplink data does not send the uplink information on the second resource by using the second indication information, and ensures that the terminal device that receives the second downlink service can be on the second resource.
  • the uplink feedback information is sent, thereby satisfying the reliability requirement of the second downlink service.
  • the first terminal device determines, according to the second indication information, uplink feedback information corresponding to the second downlink service
  • the second resource that is occupied by the terminal device determines the second resource occupied by the uplink feedback information corresponding to the second downlink service according to the resource location occupied by the second indication information and the preset rule.
  • the terminal device determines the location of the second resource according to a preset rule (eg, a protocol agreement) and a resource location of the second indication information.
  • a preset rule eg, a protocol agreement
  • the preset rule includes one of the following: the second resource occupied by the uplink feedback information corresponding to the second downlink service is located in the Mth time unit after the resource occupied by the second indication information The second resource occupied by the uplink feedback information corresponding to the second downlink service is located in the Nth time unit after the resource occupied by the second downlink service, where M and N are positive integers.
  • the first terminal device determines, according to the second indication information, uplink feedback information corresponding to the second downlink service
  • the second resource that is occupied by the terminal device determines the second resource occupied by the uplink feedback information corresponding to the second downlink service according to the resource location occupied by the second downlink service and the preset rule.
  • the method further includes: receiving, by the terminal device, a notification message that is sent by the network device, where the notification message includes the a rule is provided, the preset rule includes one of the following: the second resource occupied by the uplink feedback information corresponding to the second downlink service is located at the Mth time unit after the resource occupied by the second indication information The second resource occupied by the uplink feedback information corresponding to the second downlink service is located in the Nth time unit after the resource occupied by the second downlink service, where M and N are positive integers.
  • the second aspect provides a method for receiving information, where the method is performed by a network device, for example, the first indication information that is sent by the network device to the terminal device, where the first indication information indicates a first resource, and the network device sends a second indication information, where the second indication information indicates that part or all of the downlink resources scheduled for the first downlink service are occupied by the second downlink service; the network device receives the second downlink service corresponding to the second resource Uplink feedback information; the network device receives the information sent by the first terminal device on the third resource, where the third resource is part or all of the first resource except the fourth resource, the fourth The resource is a resource in which the first resource overlaps with the second resource.
  • the second indication information includes resource location information of the second resource.
  • the method further includes: the network device sends a notification message, where the notification message includes a preset rule, the pre- Setting a rule for the terminal device to determine the second resource according to the preset rule, where the preset rule includes one of the following: the second resource occupied by the uplink feedback information corresponding to the second downlink service is located at the In the Mth time unit after the resource occupied by the second indication information, the second resource occupied by the uplink feedback information corresponding to the second downlink service is located at the Nth after the resource occupied by the second downlink service Among the time units, where M and N are positive integers.
  • a device for transmitting information such as a terminal device, for performing the above method for transmitting information
  • the device may comprise a module for performing the corresponding steps of the above method.
  • a processing module for performing the corresponding steps of the above method.
  • a transmitting module for transmitting information
  • a receiving module for receiving information
  • a fourth aspect provides an apparatus for receiving information, such as a network device, for performing the above method of receiving information.
  • the apparatus may include a module for performing corresponding steps of the foregoing method.
  • a processing module for performing corresponding steps of the foregoing method.
  • a transmitting module for transmitting information
  • a receiving module for receiving information.
  • a fifth aspect provides an apparatus for transmitting information, comprising a memory and a processor, the memory for storing a computer program, the processor for calling and running the computer program from the memory, such that the apparatus performs the transmitting information described above method.
  • an apparatus for receiving information comprising a memory and a processor for storing a computer program, the processor for calling and running the computer program from a memory, such that the apparatus performs the receiving of the information as described above method.
  • a computer readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform the methods described in the above aspects.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the methods described in the various aspects above.
  • FIG. 1 is a schematic diagram of a wireless communication system applied to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a network device in the above wireless communication system.
  • FIG. 3 is a schematic structural diagram of a terminal device in the above wireless communication system.
  • FIG. 4 is a schematic flowchart of a method according to an embodiment of the present application.
  • Figure 5 shows a schematic diagram of a method of one embodiment of the present application.
  • Figure 6 shows a schematic diagram of a method of one embodiment of the present application.
  • Figure 7 shows a schematic diagram of a method of one embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a terminal device 800 according to an embodiment of the present application.
  • FIG. 9 shows a schematic block diagram of a network device 900 in accordance with an embodiment of the present application.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • LTE-A advanced long term evolution
  • UMTS universal mobile telecommunication system
  • 5G next-generation communication system
  • D2D device to device
  • M2M machine to machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • the embodiments of the present application describe various embodiments in combination with a sending device and a receiving device, where the sending device may be one of a network device and a terminal device, and the receiving device may be the other one of the network device and the terminal device, for example, in the present application.
  • the sending device may be a network device, and the receiving device may be a terminal device; or the sending device may be a terminal device, and the receiving device may be a network device.
  • a terminal device may also be called a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user. Agent or user device.
  • UE user equipment
  • the terminal device may be a station (STA) in a wireless local area network (WLAN), and may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, or a wireless local loop (wireless local Loop, WLL) station, personal digital assistant (PDA) device, handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, and next-generation communication system, For example, a terminal device in a fifth-generation (5G) communication network or a terminal device in a public land mobile network (PLMN) network that is evolving in the future.
  • 5G fifth-generation
  • PLMN public land mobile network
  • the terminal device may also be a wearable device.
  • a wearable device which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design and wear wearable devices such as glasses, gloves, watches, clothing, and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are more than just a hardware device, but they also implement powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-size, non-reliable smartphones for full or partial functions, such as smart watches or smart glasses, and focus on only one type of application, and need to work with other devices such as smartphones. Use, such as various smart bracelets for smart signs monitoring, smart jewelry, etc.
  • the network device may be a device for communicating with the mobile device, and the network device may be an access point (AP) in the WLAN, a Base Transceiver Station (BTS) in GSM or CDMA, or may be in WCDMA.
  • AP access point
  • BTS Base Transceiver Station
  • a base station (NodeB, NB) which may also be an evolved Node B (eNB or eNodeB) in LTE, or a relay station or an access point, or an in-vehicle device, a wearable device, and a network device in a future 5G network or a future Network devices and the like in an evolved PLMN network.
  • eNB evolved Node B
  • eNodeB evolved Node B
  • the network device provides a service for the cell
  • the terminal device communicates with the network device by using a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell.
  • the cell may be a cell corresponding to a network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a small cell, where the small cell may include: a metro cell and a micro cell ( Micro cell), Pico cell, Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the method and apparatus provided by the embodiments of the present application may be applied to a terminal device or a network device, where the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system.
  • the application layer includes applications such as browsers, contacts, word processing software, and instant messaging software.
  • the specific structure of the execution body of the method for transmitting a signal is not particularly limited as long as the program of the code for recording the method of transmitting the signal of the embodiment of the present application is executed.
  • the method for transmitting a signal according to the embodiment of the present application may be performed.
  • the execution body of the method for wireless communication in the embodiment of the present application may be a terminal device or a network device, or may be a terminal device or a network device capable of calling a program and The functional module that executes the program.
  • a computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disc (CD), a digital versatile disc (DVD). Etc.), smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), cards, sticks or key drivers, etc.).
  • a magnetic storage device eg, a hard disk, a floppy disk, or a magnetic tape, etc.
  • CD compact disc
  • DVD digital versatile disc
  • Etc. smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), cards, sticks or key drivers, etc.).
  • various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, without limitation, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.
  • FIG. 1 is a schematic diagram of a wireless communication system applied to an embodiment of the present application.
  • the wireless communication system 100 includes a network device 102, which may include one antenna or multiple antennas, such as antennas 104, 106, 108, 110, 112, and 114. Additionally, network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , demodulator, demultiplexer or antenna, etc.).
  • Network device 102 can communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it will be appreciated that network device 102 can communicate with any number of terminal devices similar to terminal device 116 or terminal device 122.
  • Terminal devices 116 and 122 may be, for example, cellular telephones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable for communicating over wireless communication system 100. device.
  • terminal device 116 is in communication with antennas 112 and 114, wherein antennas 112 and 114 transmit information to terminal device 116 over a forward link (also referred to as downlink) 118 and through the reverse link (also Information referred to as uplink 120 receives information from terminal device 116.
  • terminal device 122 is in communication with antennas 104 and 106, wherein antennas 104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.
  • forward link 118 can use a different frequency band than reverse link 120, and forward link 124 can be used differently than reverse link 126. Frequency band.
  • FDD frequency division duplex
  • the forward link 118 and the reverse link 120 can use a common frequency band, a forward chain.
  • the path 124 and the reverse link 126 can use a common frequency band.
  • Each antenna (or set of antennas consisting of multiple antennas) and/or regions designed for communication is referred to as a sector of network device 102.
  • the antenna group can be designed to communicate with terminal devices in sectors of the network device 102 coverage area.
  • the network device can transmit signals to all of the terminal devices in its corresponding sector through a single antenna or multiple antenna transmit diversity.
  • the transmit antenna of network device 102 may also utilize beamforming to improve the signal to noise ratio of forward links 118 and 124.
  • the network device 102 utilizes beamforming to transmit signals to the randomly dispersed terminal devices 116 and 122 in the associated coverage area, as compared to the manner in which the network device transmits signals to all of its terminal devices through single antenna or multi-antenna transmit diversity, Mobile devices in neighboring cells are subject to less interference.
  • network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device.
  • the wireless communication transmitting device can encode the data for transmission.
  • the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device.
  • Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.
  • the communication system 100 can be a PLMN network or a D2D network or an M2M network or other network.
  • FIG. 1 is only a simplified schematic diagram of an example, and other network devices may also be included in the network, which are not shown in FIG.
  • the URLLC service requires extremely high latency.
  • the transmission delay is required to be within 0.5 milliseconds (millisecond, ms).
  • the transmission delay is required to be within 1 ms.
  • the smallest time scheduling unit is a transmission time interval (TTI) of 1 ms duration.
  • TTI transmission time interval
  • the data transmission of the wireless air interface can use a shorter time scheduling unit, for example, using a mini-slot or a larger sub-carrier time slot as the minimum time scheduling. unit.
  • a mini-slot includes one or more time domain symbols, where the time domain symbols may be orthogonal frequency division multiplexing (OFDM) symbols.
  • OFDM orthogonal frequency division multiplexing
  • the corresponding time length is 0.5 ms; for a time slot with a subcarrier spacing of 60 kHz, the corresponding time The length is shortened to 0.125ms.
  • the generation of data packets of the URLLC service is bursty and random, and may not generate data packets for a long period of time, or may generate multiple data packets in a short time.
  • the packets of the URLLC service are in most cases small packets, for example 50 bytes.
  • the characteristics of the data packets of the URLLC service affect the way resources are allocated by the communication system.
  • the resources herein include but are not limited to: time domain symbols, frequency domain resources, time-frequency resources, codeword resources, and beam resources.
  • the allocation of system resources is performed by the base station. The following uses a base station as an example for description. If the base station allocates resources for the URLLC service by using reserved resources, the system resources are wasted when there is no URLLC service. Moreover, the short delay feature of the URLLC service requires that the data packet is transmitted in a very short time, so the base station needs to reserve a sufficient bandwidth for the URLLC service, thereby causing a serious drop in system resource utilization.
  • the base station Since the data volume of the eMBB service is relatively large and the transmission rate is relatively high, a longer time scheduling unit is generally used for data transmission to improve transmission efficiency. For example, a time slot with a 15 kHz subcarrier spacing is used, and the corresponding time length is 0.5. Ms. Due to the burstiness of the data of the URLLC service, in order to improve the system resource utilization, the base station usually does not reserve resources for the downlink data transmission of the URLLC service, but uses the preemption of the resources of the eMBB service to allocate the URLLC service. Resources.
  • the preemption means that the base station selects part or all of the time-frequency resources for transmitting the URLLC service data on the time-frequency resources that have been allocated for transmitting the eMBB service data, and the base station is used for transmitting the time-frequency resources of the URLLC service data.
  • the data of the eMBB service is not sent.
  • the time-frequency resources occupied by the HARQ feedback information of the downlink URL LC service may collide with the time-frequency resources occupied by the uplink eMBB service. That is to say, in the communication process, there may be a case where the two uplink services occupy the same time-frequency resource and collide.
  • the embodiment of the present application provides a method for transmitting information and a method for receiving information. Its corresponding network equipment and terminal equipment.
  • FIG. 2 is a schematic structural diagram of a network device in the above wireless communication system.
  • the network device can perform the data sending method provided by the embodiment of the present application.
  • the network device includes a processor 201, a receiver 202, a transmitter 203, and a memory 204.
  • the processor 201 can be communicatively coupled to the receiver 202 and the transmitter 203.
  • the memory 204 can be used to store program code and data for the network device. Therefore, the memory 204 may be a storage unit inside the processor 201, or may be an external storage unit independent of the processor 201, or may be a storage unit including the processor 201 and an external storage unit independent of the processor 201. component.
  • the network device may further include a bus 205.
  • the receiver 202, the transmitter 203, and the memory 204 may be connected to the processor 201 via a bus 205;
  • the bus 205 may be a Peripheral Component Interconnect (PCI) bus or an extended industry standard structure (Extended Industry Standard) Architecture, EISA) bus, etc.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus 205 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 2, but it does not mean that there is only one bus or one type of bus.
  • the processor 201 can be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), and a field programmable gate. Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the receiver 202 and the transmitter 203 may be circuits including the above-described antenna and transmitter chain and receiver chain, which may be independent circuits or the same circuit.
  • FIG. 3 is a schematic structural diagram of a terminal device in the above wireless communication system.
  • the terminal device is capable of performing the data receiving method provided by the embodiment of the present application.
  • the terminal device may include a processor 301, a receiver 302, a transmitter 303, and a memory 304.
  • the processor 301 can be communicatively coupled to the receiver 302 and the transmitter 303.
  • the terminal device may further include a bus 305, and the receiver 302, the transmitter 303, and the memory 304 may be connected to the processor 301 via the bus 305.
  • the bus 305 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus or the like.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus 305 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 3, but it does not mean that there is only one bus or one
  • the memory 304 can be used to store program code and data for the terminal device. Therefore, the memory 304 may be a storage unit inside the processor 301, or may be an external storage unit independent of the processor 301, or may be a storage unit including the processor 301 and an external storage unit independent of the processor 201. component. Receiver 302 and transmitter 303 can be separate circuits or the same circuit.
  • the resources mentioned in the embodiments of the present application include one or more time units in the time domain, where each time unit may include one or more time domain symbols, and may also include one or more slots. It may also include one or more mini-slots, or one or more sub-frames.
  • the first time-frequency resource group includes multiple time units, the multiple time units may be continuous or discontinuous, which is not limited in this application.
  • the time domain symbol may be an orthogonal frequency division multiplexing (OFDM) symbol, or may be a single-carrier frequency-division multiplexing (SC-FDM) symbol.
  • OFDM orthogonal frequency division multiplexing
  • SC-FDM single-carrier frequency-division multiplexing
  • the resources mentioned in the embodiment of the present application occupy a certain bandwidth in the frequency domain, and the bandwidth may be one or more physical resource blocks (PRBs), and may be one or more physical resource block groups (physical resources).
  • Block group, PRBG can be one or more subbands.
  • the first time-frequency resource group includes multiple time domain units, the size and location of the frequency domain resources on each time domain unit may be the same or different.
  • the network device may schedule downlink transmission of the terminal device by performing frequency domain resource frequency hopping on different time domain units.
  • FIG. 4 is a schematic flowchart of a method according to an embodiment of the present application. As shown in FIG. 4, the method includes the following steps.
  • Step 401 The network device sends first indication information to the terminal device, where the first indication information indicates the first resource.
  • the terminal device receives the first indication information sent by the network device.
  • the terminal device that receives the first indication information may be referred to as the first terminal device.
  • the first terminal device is a terminal device that supports the eMBB service
  • the first indication information may be uplink scheduling information
  • the first terminal device sends the uplink information on the first resource according to the first indication information.
  • Step 402 The first terminal device receives the second indication information sent by the network device, where the second indication information indicates that part or all of the downlink resources scheduled for the first downlink service are occupied by the second downlink service.
  • the first downlink service is an eMBB service
  • the second downlink service is a URLLC service
  • the second indication information is used to indicate the allocation to the eMBB service in a scenario where the eMBB service and the URLLC service coexist.
  • the downlink resource is preempted by the sudden URL LC service.
  • the terminal device that receives the first downlink service is the second terminal device
  • the terminal device that receives the second downlink service is the third terminal device, then the second indicator That is, the downlink resource used for informing the second terminal device to be "preempted" by the URL LC service of the third terminal device.
  • the first terminal device after receiving the first indication information, the first terminal device receives the second indication information in the process of sending the uplink data on the first resource according to the first indication information, or before transmitting the uplink data.
  • first terminal device, the second terminal device, or the third terminal device may be the same terminal device, and the first terminal device, the second terminal device, and the third terminal device may both be Different terminal devices are not limited in this application.
  • Step 403 The first terminal device determines, according to the second indication information, the second resource occupied by the uplink feedback information corresponding to the second downlink service.
  • the third terminal device decodes the second downlink service data, and informs the network device of the second by using a hybrid automatic repeat request (HARQ) feedback message.
  • HARQ hybrid automatic repeat request
  • the HARQ feedback information may be an acknowledgement (ACK) or a non-acknowledgement (not acknowledged, NACK).
  • ACK acknowledgement
  • NACK non-acknowledgement
  • the first terminal device after receiving the first indication information, the first terminal device sends the uplink data according to the first resource indicated by the first indication information, or sends the second indication information, before receiving the uplink data, the first terminal The device needs to determine, according to the second indication information, the resource occupied by the HARQ feedback information corresponding to the second downlink service data of the third terminal device, that is, the second resource.
  • Step 404 The first terminal device sends the uplink information on the third resource, where the third resource is part or all of the resources other than the fourth resource, and the fourth resource is the first resource and the second resource overlapped. Resources.
  • the overlapping resource is referred to as a fourth resource. That is to say, the first resource used by the first terminal device to send the uplink information and the second resource used by the third terminal device to send the HARQ feedback information are referred to as the fourth resource.
  • the HARQ feedback information is used to feed back the decoding of the second downlink service data, and the URL LC service corresponding to the second downlink service has a high reliability requirement for the service, the transmission of the HARQ feedback information corresponding to the second downlink service needs to be ensured.
  • the first terminal device sends the uplink information by using the resources other than the fourth resource in the first resource, and the second terminal device can use the fourth resource to send the HARQ feedback information to ensure the reliability of the second downlink service.
  • the method provided by the embodiment of the present application indicates that the terminal device that is transmitting or transmitting the uplink data does not send the uplink information on the second resource by using the second indication information, and ensures that the terminal device that receives the second downlink service can be on the second resource.
  • the uplink feedback information is sent, thereby satisfying the reliability requirement of the second downlink service.
  • the second indication information includes resource location information of the second resource.
  • the second indication information includes the resource location information of the second resource of the terminal device, so as to ensure that the terminal device can avoid the second resource and send the uplink information only on the third resource.
  • the first terminal device determines, according to the second indication information, the second resource that is occupied by the uplink feedback information corresponding to the second downlink service, including: according to the foregoing And indicating the resource location occupied by the information, and determining the second resource occupied by the uplink feedback information corresponding to the second downlink service.
  • the terminal device determines the location of the second resource according to a preset rule (eg, a protocol agreement) and a resource location of the second indication information.
  • a preset rule eg, a protocol agreement
  • the first terminal device determines, according to the second indication information, the second resource that is occupied by the uplink feedback information corresponding to the second downlink service, including: according to the foregoing
  • the second resource occupied by the uplink feedback information corresponding to the second downlink service is determined by the resource location occupied by the second downlink service.
  • the terminal device determines the resource location occupied by the uplink feedback information corresponding to the second downlink service according to a preset rule (for example, a protocol agreement) and a resource occupied by the second downlink service.
  • a preset rule for example, a protocol agreement
  • the method further includes: the terminal device receiving a notification message sent by the network device, where the notification message includes the preset rule, and the preset rule includes one of: the second downlink The second resource occupied by the uplink feedback information corresponding to the service is located in the Mth time unit after the resource occupied by the second indication information; the second resource occupied by the uplink feedback information corresponding to the second downlink service is located In the Nth time unit after the resource occupied by the second downlink service, where M and N are positive integers.
  • the network device sends a notification message to the terminal device, and the notification message may be a high layer signaling or a semi-static configuration message.
  • the time unit may be an orthogonal frequency division multiplexing (OFDM) symbol, or may be a slot, where one slot is composed of multiple OFDM symbols, or may be a mini-slot ( Mini-slot), one of the mini-slots may consist of one or more OFDM symbols.
  • OFDM orthogonal frequency division multiplexing
  • Mini-slot one of the mini-slots may consist of one or more OFDM symbols.
  • FIG. 5 is a schematic diagram of a method of an embodiment of the present application.
  • one slot is composed of 14 orthogonal frequency divisions (orthogonal frequency division). Multiplexing, OFDM) symbol
  • the time slot may be the first service, that is, the scheduling unit of the eMBB service
  • the downlink control information of the first service is carried in the physical downlink control channel (PDCCH) of the scheduling unit, the PDCCH It can be mapped on the first two OFDM symbols of the slot.
  • PDCCH physical downlink control channel
  • URLLC service 1 and URLLC service 2 are shown in FIG. 5, which are URLLC service 1 and URLLC service 2, respectively, where URLLC service 1 is carried on a mini-slot consisting of 2 symbols, URLLC service 2 is carried on a mini-slot consisting of two other symbols, that is, the URLLC service 1 and the URLLC service 2 respectively "preempt" a part of the downlink resources allocated by the network device to the first service.
  • the two second indication information shown in FIG. 5 are an indicator of the URLLC service 1 and an indicator of the URLLC service 2, respectively, wherein the indicator of the URLLC service 1 is used to indicate that part or all of the downlink resources of the first service are The URLLC service 1 is occupied; the indicator of the URLLC service 2 is used to indicate that part or all of the downlink resources of the first service are occupied by the URLLC service 2.
  • the uplink slot is also composed of 14 OFDM symbols, which are used to carry uplink information of the first terminal device.
  • the first terminal device receives the first indication information sent by the network device, where the first indication information indicates that the first terminal device is in the uplink time slot shown in FIG. 5, in a time slot that is located before the uplink time slot in the time domain.
  • the uplink information is sent, that is, the first time domain resource includes the uplink time slot shown in FIG.
  • the uplink time slot shown in FIG. 5 is the nth time slot
  • the first terminal device transmitting the uplink data on the nth time slot may receive the first indication information on the (n-3)th time slot. That is, the uplink authorization information.
  • the first terminal device determines the second resource corresponding to the second downlink service according to the indicator. Specifically, the first terminal device determines that the terminal device that receives the URLLC service 1 will use the second OFDM symbol after the time domain resource (the 4th OFDM symbol and the 5th OFDM symbol in FIG. 5) occupied by the URLLC service 1 ( The HARQ feedback information is transmitted on the 7th OFDM symbol in FIG. 5, and FIG. 5 shows the time-frequency resource occupied by the HARQ feedback information (that is, the A/N feedback information) of the URLLC1 service, and the time-frequency resource is also the second. The second resource corresponding to the downlink service.
  • the second resource corresponding to the second downlink service is determined according to the indicator. Specifically, the first terminal device determines that the terminal device that receives the URLLC service 2 will use the second OFDM symbol after the time domain resource (the 10th OFDM symbol and the 11th OFDM symbol in FIG. 5) occupied by the URLLC service 2 ( The HARQ feedback information is transmitted on the 13th OFDM symbol in FIG. 5, and FIG. 5 shows the time-frequency resource occupied by the HARQ feedback information (that is, the A/N feedback information) of the URLLC service 2, which is the time-frequency resource.
  • the second resource corresponding to the downlink service is determined according to the indicator. Specifically, the first terminal device determines that the terminal device that receives the URLLC service 2 will use the second OFDM symbol after the time domain resource (the 10th OFDM symbol and the 11th OFDM symbol in FIG. 5) occupied by the URLLC service 2 ( The HARQ feedback information is transmitted on the 13th OFDM symbol in FIG. 5, and FIG. 5 shows the time-frequency resource occupied by
  • the manner in which the first terminal device determines the second resource corresponding to the second service may also be:
  • the first terminal device determines that the terminal device receiving the URLLC service 1 will be on the third OFDM symbol (the 7th OFDM symbol in FIG. 5) after the resource of the URLLC service 1 (the 4th OFDM symbol in FIG. 5)
  • the HARQ feedback information is sent.
  • FIG. 5 shows the time-frequency resource occupied by the HARQ feedback information (that is, the A/N feedback information) of the URLLC1 service, and the time-frequency resource is the second resource corresponding to the second downlink service.
  • the first terminal device determines that the terminal device that receives the URLLC2 service will be the third OFDM symbol after the resource (the 10th OFDM symbol in FIG. 5) of the identifier of the URLLC service 2 (the 13th OFDM symbol in FIG. 5) And transmitting the HARQ feedback information, and FIG. 5 shows the time-frequency resource occupied by the HARQ feedback information (that is, the A/N feedback information) of the URLLC service 2, where the time-frequency resource is the second resource corresponding to the second downlink service. .
  • the second resource has a specific time-frequency resource location, which may be similar to the uplink PUCCH in LTE, and may be in an OFDM symbol at the edge of the frequency band and at the edge of the time slot. Both ends of the inner band can also be hopped at both ends of a band within a mini-slot, and hopped at the edge of the slot, and so on. This application is not limited.
  • the first terminal device sends the uplink information on the resources other than the second resource in the uplink time slot, and ensures the resources occupied by the uplink information sent by the first terminal device and the resources occupied by the HARQ feedback information of the URLLC service 1,
  • the resources occupied by the HARQ feedback information of the URLLC service 2 do not overlap.
  • the downlink slot in FIG. 6 is composed of 7 orthogonal frequency division multiplexing (OFDM) symbols, which are the first service, that is, the eMBB service.
  • the scheduling unit, the downlink control information of the first service is carried in a physical downlink control channel (PDCCH) of the scheduling unit, and in FIG. 6, the PDCCH is mapped on the first two symbols of the time scheduling unit.
  • PDCCH physical downlink control channel
  • a second service that is, the URLLC service shown in the figure, is shown in FIG. 6, wherein the URLLC service is carried on a mini-slot consisting of 3 symbols, and the URLLC service is " Preemptively part of the downlink resources allocated by the network equipment to the first service.
  • the second indication information shown in FIG. 6 is an indicator of the URLLC service, where the indicator of the URLLC service is used to indicate that the downlink resource of the first service is occupied by the URLLC service.
  • the uplink slot is also composed of 7 OFDM symbols, and is used to carry uplink information of the first terminal device.
  • the first terminal device receives the first indication information sent by the network device, where the first indication information indicates that the first terminal device sends the uplink on the uplink slot shown in FIG. 6 on a certain slot in the time domain before the uplink slot.
  • the information, that is, the first time domain resource includes the upstream slot.
  • the uplink time slot shown in FIG. 6 is the nth time slot, and the first terminal device transmitting the uplink data on the nth time slot may receive the first indication information on the (n-3)th time slot. That is, the uplink authorization information.
  • the second resource corresponding to the second downlink service is determined according to the indicator. Specifically, the first terminal device determines that the terminal device that receives the URLLC service will occupy the second OFDM symbol after the time domain resource (the third OFDM symbol to the fifth OFDM symbol in FIG. 6) occupied by the URLLC service (FIG. 6).
  • the HARQ feedback information is transmitted on the seventh OFDM symbol, and FIG. 6 shows the time-frequency resource occupied by the HARQ feedback information (that is, the A/N feedback information) of the URLLC service, and the time-frequency resource is also the second downlink service. Corresponding second resource.
  • the manner in which the first terminal device determines the second resource corresponding to the second service may also be:
  • the first terminal device determines that the terminal device receiving the URLLC1 service will transmit the HARQ on the third OFDM symbol (the 7th OFDM symbol in FIG. 6) after the resource of the URLLC1 service (the 3rd OFDM symbol in FIG. 6)
  • the feedback information, FIG. 6 shows the time-frequency resource occupied by the HARQ feedback information (that is, the A/N feedback information) of the URLLC1 service, and the time-frequency resource is the second resource corresponding to the second downlink service.
  • the first terminal device sends the uplink information on the resources of the uplink subframe except the second resource, and ensures that the uplink information of the first terminal device does not conflict with the HARQ feedback information of the URLLC service.
  • FIG. 7 is a schematic diagram of a method according to an embodiment of the present application.
  • the downlink slot is composed of 7 orthogonal frequency division multiplexing (OFDM) symbols, and the slot is the first service, ie, eMBB.
  • the scheduling unit of the service, the downlink control information of the first service is carried in a physical downlink control channel (PDCCH) of the scheduling unit, and in FIG. 7, the PDCCH is mapped on the first two symbols of the time scheduling unit. .
  • PDCCH physical downlink control channel
  • FIG. 7 shows a second service, that is, the URLLC service shown in the figure, wherein the URLLC service is carried in a mini-slot consisting of 2 symbols (the 6th OFDM symbol and the 7th OFDM) In the symbol, the URLLC service "preempts" a part of downlink resources allocated by the network device to the first service.
  • the second indication information shown in FIG. 7 is an indicator of the URLLC service, where the indicator of the URLLC service is used to indicate that the downlink resource of the first service is occupied by the URLLC service.
  • the uplink slot is also composed of 7 OFDM symbols, and is used to carry uplink information of the first terminal device.
  • the first terminal device receives the first indication information sent by the network device, where the first indication information indicates that the first terminal device sends the uplink information on the uplink slot shown in FIG. 7 on a certain slot in the time domain. That is, the first time domain resource includes the uplink slot.
  • the uplink time slot shown in FIG. 6 is the nth time slot, and the first terminal device transmitting the uplink data on the nth time slot may receive the first indication information on the (n-4)th time slot. That is, the uplink authorization information.
  • two first terminal devices are shown, which are an eMBB1 terminal device and an eMBB2 terminal device, respectively, and the two first terminal devices respectively monitor an indicator of a URLLC service, and determine a second downlink service corresponding according to the indicator.
  • the second resource is shown, which are an eMBB1 terminal device and an eMBB2 terminal device, respectively, and the two first terminal devices respectively monitor an indicator of a URLLC service, and determine a second downlink service corresponding according to the indicator.
  • the second resource is shown, which are an eMBB1 terminal device and an eMBB2 terminal device, respectively, and the two first terminal devices respectively monitor an indicator of a URLLC service, and determine a second downlink service corresponding according to the indicator.
  • the second resource is shown, which are an eMBB1 terminal device and an eMBB2 terminal device, respectively, and the two first terminal devices respectively monitor an indicator of a URLLC service, and determine a second downlink service corresponding according to the indicator.
  • the second resource is shown
  • the eMBB1 terminal device that is transmitting the uplink data determines that the terminal device that receives the URLLC service will be the third mini after the mini-slot (the sixth OFDM symbol and the seventh OFDM symbol in FIG. 7) where the URLLC service is located.
  • the HARQ feedback information is transmitted on the -slot symbol (the 10th OFDM symbol in FIG. 7), and the time-frequency resource occupied by the HARQ feedback information (that is, the A/N feedback information) of the URLLC service is shown in FIG. That is, the second resource corresponding to the second downlink service.
  • the second resource occupied by the HARQ feedback information of the URLLC service does not conflict with the resource of the eMBB1 terminal device that transmits the uplink information.
  • the eMBB2 terminal device that is to send the uplink data determines that the terminal device that receives the URLLC service will be the third mini after the mini-slot (the sixth OFDM symbol and the seventh OFDM symbol in FIG. 7) where the URLLC service is located.
  • -Slot (the 10th OFDM symbol in FIG. 7) transmits HARQ feedback information
  • FIG. 7 shows time-frequency resources occupied by HARQ feedback information (that is, A/N feedback information) of the URLLC service, and the time-frequency resource is also It is the second resource corresponding to the second downlink service.
  • the eMBB2 terminal device will be removed when the eMBB2 terminal device will transmit uplink information on the 8th to 14th OFDM symbols, and the second resource occupied by the HARQ feedback information of the URLLC service and the resource for transmitting the uplink information by the eMBB2 terminal device have conflicts.
  • the uplink information is transmitted on resources other than the second resource, and collision can be avoided.
  • the manner in which the first terminal device determines the second resource corresponding to the second service may also be:
  • the eMBB1 terminal device determines the 6th and 7th OFDM symbols (the 7th OFDM in FIG. 7) after the terminal device receiving the URLLC service will be located in the resource (the 12th and 13th OFDM symbols in FIG. 7) of the identifier of the URLLC service.
  • the HARQ feedback information is sent on the symbol).
  • the eMBB2 terminal device determines the 6th and 7th OFDM symbols (the 7th OFDM in FIG. 7) after the terminal device receiving the URLLC service will be located in the resource (the 12th and 13th OFDM symbols in FIG. 7) of the identifier of the URLLC service.
  • the HARQ feedback information is sent on the symbol).
  • FIG. 8 is a schematic block diagram of a terminal device 800 in the embodiment of the present application.
  • Each module in the terminal device 800 is used to perform each action or process performed by the terminal device in the foregoing method.
  • the description can be referred to the description above.
  • the terminal device 800 may include: a communication module and a processing module, where the communication module is configured to receive first indication information sent by the network device, where the first indication information indicates a first resource; And receiving, by the network device, the second indication information, where the second indication information indicates that part or all of the downlink resources scheduled for the first downlink service are occupied by the second downlink service; the processing module is configured to use, according to the second And indicating, by the indication information, a second resource that is occupied by the uplink feedback information corresponding to the second downlink service; the communication module is further configured to send uplink information on the third resource, where the third resource is the first resource And the fourth resource is a resource that overlaps the first resource and the second resource.
  • the second indication information includes resource location information of the second resource.
  • the processing module is specifically configured to: determine, by the terminal device, the second uplink information corresponding to the second downlink service according to the resource location and the preset rule occupied by the second indication information. Resources.
  • the processing module is specifically configured to: determine, by the terminal device, the second uplink information corresponding to the second downlink service according to the resource location occupied by the second downlink service and a preset rule. Resources.
  • the communication module is further configured to: receive a notification message sent by the network device, where the notification message includes the preset rule, and the preset rule includes one of: the second downlink service corresponding to The second resource occupied by the uplink feedback information is located in the Mth time unit after the resource occupied by the second indication information; the second resource occupied by the uplink feedback information corresponding to the second downlink service is located in the In the Nth time unit after the resource occupied by the second downlink service, where M and N are positive integers.
  • processing module in this embodiment may be implemented by 301 in FIG. 3, and the communication module in this embodiment may be implemented by the receiver 302 and the transmitter 303 in FIG.
  • FIG. 9 is a schematic block diagram of a network device 900 in an embodiment of the present application.
  • Each module in the network device 900 is configured to perform various actions or processes performed by the network device in the foregoing method.
  • the description can be referred to the description above.
  • the network device 900 includes: a communication module and a processing module, wherein the processing module is configured to control signals received and sent by the communication module,
  • the communication module is configured to send first indication information to the terminal device, where the first indication information indicates a first resource, and the communication module is further configured to send second indication information, where the second indication information indicates scheduling The part or all of the downlink resources of the first downlink service are occupied by the second downlink service; the network device receives the uplink feedback information corresponding to the second downlink service on the second resource; the network device is on the third resource Receiving, by the first terminal device, the third resource is part or all of the first resource except the fourth resource, where the fourth resource is the first resource and the second resource Overlapping resources.
  • the second indication information includes resource location information of the second resource.
  • the communication module is further configured to: send a notification message, where the notification message includes a preset rule, where the preset rule is used by the terminal device to determine a second resource according to the preset rule, where the The setting rule includes one of the following: the second resource occupied by the uplink feedback information corresponding to the second downlink service is located in the Mth time unit after the resource occupied by the second indication information; The second resource occupied by the uplink feedback information corresponding to the downlink service is located in the Nth time unit after the resource occupied by the second downlink service, where M and N are positive integers.
  • processing module in this embodiment may be implemented by the processor 201 in FIG. 2, and the communication module in this embodiment may be implemented by the receiver 202 and the transmitter 203 in FIG.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • 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, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

La présente invention concerne un procédé de réception d'informations et un appareil associé, ainsi qu'un procédé d'envoi d'informations et un appareil associé. Le procédé comprend les étapes consistant : à recevoir, au moyen d'un dispositif terminal, des premières informations d'indication envoyées par un dispositif de réseau, ces premières informations d'indication indiquant des premières ressources ; à recevoir des secondes informations d'indication envoyées par le dispositif de réseau, ces secondes informations d'indication indiquant qu'une partie ou la totalité des ressources de liaison descendante ordonnancées pour un premier service de liaison descendante sont occupées par un second service de liaison descendante ; à déterminer des deuxièmes ressources occupées par des informations de rétroaction de liaison montante correspondant au second service de liaison descendante selon les secondes informations d'indication ; et à envoyer des informations de liaison montante sur des troisièmes ressources, les troisièmes ressources étant une partie ou la totalité des premières ressources à l'exception de quatrièmes ressources, et les quatrièmes ressources étant des ressources qui coïncident avec les premières et les deuxièmes ressources. En conséquence, dans la présente invention, l'envoi des informations de liaison montante sur les troisièmes ressources garantit que le dispositif terminal recevant le second service de liaison descendante envoie les informations de rétroaction de liaison montante sur les deuxièmes ressources, et, en outre, l'exigence de fiabilité du second service de liaison descendante peut être satisfaite.
PCT/CN2018/079722 2017-03-24 2018-03-21 Procédé de réception d'informations et appareil associé, et procédé d'envoi d'informations et appareil associé WO2018171605A1 (fr)

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