WO2020133457A1 - Procédé de communication sans fil, dispositif réseau et dispositif terminal - Google Patents

Procédé de communication sans fil, dispositif réseau et dispositif terminal Download PDF

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Publication number
WO2020133457A1
WO2020133457A1 PCT/CN2018/125740 CN2018125740W WO2020133457A1 WO 2020133457 A1 WO2020133457 A1 WO 2020133457A1 CN 2018125740 W CN2018125740 W CN 2018125740W WO 2020133457 A1 WO2020133457 A1 WO 2020133457A1
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WIPO (PCT)
Prior art keywords
information
dci
category
shared channel
value range
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PCT/CN2018/125740
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English (en)
Chinese (zh)
Inventor
林亚男
徐婧
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2018/125740 priority Critical patent/WO2020133457A1/fr
Priority to CN201880091335.5A priority patent/CN111869150A/zh
Publication of WO2020133457A1 publication Critical patent/WO2020133457A1/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

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a wireless communication method, network equipment, and terminal equipment.
  • the network device can send downlink control information (Downlink Control Information, DCI) to the terminal device, and the DCI can be used for scheduling downlink transmission or uplink transmission of the terminal device.
  • DCI Downlink Control Information
  • Embodiments of the present application provide a wireless communication method and device, which can improve flexibility in DCI setting.
  • a wireless communication method including: a terminal device receiving first downlink control information DCI; the terminal device determining information included in a first information field in the first DCI; wherein, in the When the category of the first DCI is the first category, the first information field indicates the first information, or, when the category of the first DCI is the second category, the first information field indicates the first information And at least one second information, the first information and the second information are respectively indicated by different bits in the first information field.
  • a wireless communication method including: a network device sends first downlink control information DCI to a terminal device; wherein, when the category of the first DCI is the first category, the first information field Indicating the first information, or, when the category of the first DCI is the second category, the first information field indicates the first information and at least one second information, the first information and the second information are respectively Indicated by different bits in the first information field
  • a terminal device for performing the method in the first aspect.
  • the terminal device includes a functional module for performing the method in the first aspect described above.
  • a network device for performing the method in the second aspect above.
  • the network device includes a functional module for performing the method in the second aspect above.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to perform the method in the second aspect.
  • a chip is provided for implementing the method in the first aspect.
  • the chip includes a processor for calling and running a computer program from the memory, so that the device installed with the chip executes the method as described in the first aspect above.
  • a chip is provided for implementing the method in the above first aspect.
  • the chip includes a processor for calling and running a computer program from the memory, so that the device installed with the chip executes the method as described in the second aspect above.
  • a computer-readable storage medium for storing a computer program, which causes the computer to execute the method in the first aspect described above.
  • a computer-readable storage medium for storing a computer program, which causes the computer to execute the method in the second aspect described above.
  • a computer program product including computer program instructions, which cause the computer to execute the method in the first aspect described above.
  • a computer program product including computer program instructions, which cause the computer to execute the method in the second aspect above.
  • a computer program which, when run on a computer, causes the computer to execute the method in the first aspect described above.
  • a fourteenth aspect there is provided a computer program which, when run on a computer, causes the computer to execute the method in the above second aspect.
  • DCI can have multiple categories, one of which can add information to the same information field compared to other categories, and different information can occupy different bits, so that DCI can be flexibly set And, further, when the transmission scenario changes and the DCI function needs to be increased, information can be added in the original information field, thereby avoiding increasing the bit overhead of DCI.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a wireless communication method provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of another wireless communication method provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of another wireless communication method provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of another wireless communication method provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another wireless communication method provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of another wireless communication method provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a network device provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a communication device provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a chip provided by an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • GSM Global System
  • CDMA Code Division Multiple Access
  • WCDMA broadband code division multiple access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access, WiMAX
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 1.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal).
  • the network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area.
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or a wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, an in-vehicle device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks or network devices in future public land mobile networks (Public Land Mobile Network, PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B
  • eNodeB evolved base station in an LTE system
  • CRAN Cloud Radio Access Network
  • the network equipment can be a mobile switching center, a relay station, an access point, an in-veh
  • the communication system 100 also includes at least one terminal device 120 within the coverage of the network device 110.
  • terminal equipment includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Lines (Digital Subscriber Line, DSL), digital cables, direct cable connections ; And/or another data connection/network; and/or via wireless interfaces, such as for cellular networks, wireless local area networks (Wireless Local Area Network, WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device configured to receive/transmit communication signals; and/or Internet of Things (IoT) equipment.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN wireless local area networks
  • DVB-H networks wireless local area networks
  • satellite networks satellite networks
  • AM- FM broadcast transmitter AM- FM broadcast transmitter
  • IoT Internet of Things
  • a terminal device configured to communicate through a wireless interface may be referred to as a "wireless communication terminal", “wireless terminal”, or “mobile terminal”.
  • mobile terminals include, but are not limited to, satellites or cellular phones; Personal Communication Systems (PCS) terminals that can combine cellular radiotelephones with data processing, facsimile, and data communication capabilities; can include radiotelephones, pagers, Internet/internal PDA with networked access, web browser, notepad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palm-type receivers or others including radiotelephone transceivers Electronic device.
  • PCS Personal Communication Systems
  • GPS Global Positioning System
  • Terminal equipment can refer to access terminal, user equipment (User Equipment), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or User device.
  • Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital processing (Personal Digital Assistant (PDA), wireless communication Functional handheld devices, computing devices, or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in a 5G network, or terminal devices in a PLMN that will evolve in the future, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • terminal device 120 may perform direct terminal (Device to Device, D2D) communication.
  • D2D Direct terminal
  • the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiments of the present application.
  • FIG. 2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application.
  • the method 200 includes at least part of the following content.
  • the terminal device receives the first DCI
  • the terminal device determines information included in the first information domain in the first DCI; wherein, when the category of the first DCI is the first category, the first information domain indicates the first information Or, when the category of the first DCI is the second category, the first information field indicates the first information and at least one second information, and the first information and the second information are respectively determined by the first An indication of different bits in an information field.
  • the difference here may optionally mean completely different, that is, there is no overlap of bits.
  • FIG. 3 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application.
  • the method 300 includes at least part of the following content.
  • the network device sends the first DCI to the terminal device
  • the first information field indicates first information
  • the first information field indicates The first information and at least one second information, the first information and the second information are respectively indicated by different bits in the first information field.
  • the difference may optionally mean completely different, that is, there is no overlap of bits.
  • DCI can have multiple categories, one of which can add information to the same information field compared to other categories, and different information can occupy different bits, so that DCI can be flexibly set And, further, when the transmission scenario changes and the DCI function needs to be increased, information can be added in the original information field, thereby avoiding increasing the bit overhead of DCI.
  • the DCI may be classified into multiple categories according to the amount of information included in the specific information domain of the DCI and/or specific information types.
  • the types of DCI may include the first type and the second type.
  • the specific information field of the first type of DCI indicates (for example, may only indicate) the first information, while the second type of DCI
  • the specific information field indicates first information and at least one second information.
  • the bits occupied by each second information in the multiple second information may also be different.
  • the difference here may mean completely different, that is, there is no overlap of bits.
  • the first information and the second information can be understood as different types of information. And the plurality of second information can also be understood as different types of information among each other.
  • the "second” here is only for the convenience of description and is used to distinguish it from the "first”.
  • the first information in the embodiments of the present application may be understood as one or more pieces of information that are all included in a certain information domain under different DCI categories.
  • the second information in the embodiment of the present application may refer to one or more pieces of information included in a certain information field only under a partial DCI category.
  • the categories of DCI may include a first category and a second category. It should be understood that the embodiments of the present application are not limited thereto, and the categories of DCI may be further divided into more categories, for example Taking the DCI of the second type as an example, the DCI of the second type may be divided into a plurality of subclasses (also referred to as classes) according to the number of included second information.
  • the information can be divided according to the function of the information.
  • the information may be divided into the following categories: information indicating time domain resource allocation (for example, symbol allocation in a single time slot), information indicating frequency domain resource allocation, and information indicating modulation coding schemes , Information indicating the process number of the Hybrid Automatic Repeat Request (HARQ), information indicating the number of repeated transmissions of the physical shared channel scheduled by the DCI, information indicating the release of the HARQ process, etc.
  • information indicating time domain resource allocation for example, symbol allocation in a single time slot
  • information indicating frequency domain resource allocation for example, information indicating frequency domain resource allocation
  • information indicating modulation coding schemes information indicating the process number of the Hybrid Automatic Repeat Request (HARQ)
  • HARQ Hybrid Automatic Repeat Request
  • the function for dividing the type of information may also be a higher-level function, for example, the information for indicating time domain resource allocation and the information for indicating frequency domain resource allocation may be divided into one type of information.
  • the function for dividing the type of information may be a lower-level function.
  • the information for indicating the allocation of time-domain resources may include the following two types of information: information for indicating the number of symbols occupied in a single time slot and Information indicating the arrangement of symbols occupied in a single time slot.
  • the first information domain in the embodiment of the present application may include at least one of the following information domains: time domain resource allocation information domain, HARQ process number domain, and adjustment coding scheme information domain.
  • the first information in the embodiment of the present application includes at least one of the following information: time domain resource allocation information, HARQ process number, and adjustment coding scheme information.
  • the first information field in the first type of DCI originally only has the function of indicating the first information, and the first information field can be named after the function of the first information.
  • the first information field in the embodiment of the present application may include more bits, and for the first information, there may be a larger information value range (for example, more HARQ process numbers, more modulation and coding schemes, etc.), if In some scenarios, for the first information, a larger information value range is not required, the value range of the first information can be reduced, and extra bits in the first information field are used to indicate the second information.
  • a larger information value range for example, more HARQ process numbers, more modulation and coding schemes, etc.
  • the second information is used for at least one of the following:
  • the second information may indicate whether the first physical shared channel is released. For example, a bit value of 1 means release, and a value of 0 means no release.
  • the first DCI here may also be used to schedule other physical shared channels, or may not be used to schedule other physical downlink shared channels.
  • the start position of the second DCI may be earlier than the start position of the first DCI, and the end position of the second DCI may be earlier than, equal to, or later than the end position of the first DCI.
  • the end position of the second DCI may be earlier than the end position of the first DCI, and the start position of the second DCI may be earlier, equal to, or later than the start position of the first DCI.
  • the start position of the second DCI may be earlier than the start position of the first DCI, and the end position of the second DCI is earlier than the end position of the first DCI.
  • the terminal device may:
  • the terminal device may not complete the reception or not receive the physical downlink shared channel at all; or,
  • the terminal device may have received the physical downlink shared channel, but the demodulation has not been completed or the physical downlink shared channel has not been demodulated at all; or,
  • the terminal device may not be ready to complete or not prepare the physical uplink shared channel at all; or,
  • the terminal device may be ready to complete the physical uplink shared channel, but the physical uplink shared channel has not yet been sent or has not been sent at all.
  • the HARQ process numbers in DCI 1 and DCI 2 are the same.
  • the second information in the first information field indicates the release of the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) )1 transmission
  • the terminal device receives PDSCH2, and sends positive acknowledgement (Acknowledgement, ACK)/negative acknowledgement (NACK) (A/N) feedback information for PDSCH2, but does not receive or demodulate PDSCH1, of course, nor ACK/NACK feedback information will be further sent for PDSCH1.
  • ACK acknowledgement
  • NACK negative acknowledgement
  • the HARQ process numbers in DCI 1 and DCI 2 are the same.
  • the second information in the first information field indicates the release of the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) )1 transmission, the terminal device receives PUSCH2, but does not prepare or send PUSCH1.
  • PUSCH Physical Uplink Shared Channel
  • the second information may indicate the ACK/NACK corresponding to the first physical shared channel Whether the transmission is released. For example, if the bit value is 1, it is released, and if the bit value is 0, it is not released.
  • the first DCI here may also be used to schedule other physical downlink shared channels, or may not be used to schedule other physical downlink shared channels.
  • the HARQ process numbers in DCI 1 and DCI 2 are the same.
  • the second information in the first information field indicates that the ACK/NACK transmission corresponding to PDSCH1 is released, then the terminal device PDSCH2 scheduled for DCI2 sends feedback information, but does not feed back ACK/NACK information for PDSCH1.
  • the second information may indicate the ACK/NACK corresponding to the first physical shared channel Transmission resources.
  • the transmission resources may be the first transmission resources of the ACK/NACK or repeated transmission resources.
  • the first DCI here may also be used to schedule other physical downlink shared channels, or may not be used to schedule other physical downlink shared channels
  • the second DCI is used to schedule the first physical shared channel, and the terminal device may receive or send the first physical shared channel based on the second DCI, and send or receive the corresponding ACK/NACK.
  • the terminal device may receive or send the first physical shared channel based on the second DCI, and send or receive the corresponding ACK/NACK.
  • the terminal device may receive or send the first physical shared channel based on the second DCI, and send or receive the corresponding ACK/NACK.
  • the terminal device may receive or send the first physical shared channel based on the second DCI, and send or receive the corresponding ACK/NACK.
  • the terminal device may receive or send the first physical shared channel based on the second DCI, and send or receive the corresponding ACK/NACK.
  • the terminal device may receive or send the first physical shared channel based on the second DCI, and send or receive the corresponding ACK/NACK.
  • the terminal device may receive or send the first physical shared channel based on the second DCI, and send or receive the corresponding ACK
  • the HARQ process numbers in DCI 1 and DCI 2 are the same.
  • the terminal device receives DCI 2
  • the second information in the first information field indicates repeated transmission (the value is 0)
  • the terminal receives At the same time as PDSCH1 scheduled by DCI1, it receives PDSCH2 scheduled by DCI (repetitive transmission of PDSCH1) and feeds back ACK/NACK information respectively.
  • the second information may indicate that the ACK/NACK corresponding to the first physical shared channel needs to be repeated How many transmissions.
  • the first DCI may also be used to schedule other physical shared channels, or may not be used to schedule other physical shared channels. Alternatively, the first DCI can also be used to repeatedly schedule the first physical downlink shared channel.
  • the second information occupies 2 bits and has a total of 4 values, which can represent 1, 2, 3, and 4 repeated transmissions, respectively, where the total number of transmissions can be added to the number of repeated transmissions.
  • the first DCI is used to schedule the second physical shared channel.
  • the second information may indicate whether the second physical shared channel needs to be transmitted. For example, a value of 1 indicates that repeated transmission is required, and a value of 0 indicates that repeated transmission is not required. .
  • the first DCI is used to schedule the second physical shared channel
  • the second information may indicate the number of repeated transmissions of the second physical shared channel
  • the second information occupies 2 bits and has a total of 4 values, which can represent 1, 2, 3, and 4 repeated transmissions, respectively, where the total number of transmissions can be added to the number of repeated transmissions.
  • the first DCI is used to schedule the second physical shared channel, and the first information field in the first DCI may indicate the ACK/NACK transmission resource corresponding to the second physical shared channel.
  • the first DCI is used to schedule the second physical shared channel
  • the first information field in the first DCI may indicate whether the ACK/NACK corresponding to the second physical shared channel needs to be transmitted, for example, a value of 1 indicates that repetition is required Transmission, a value of 0 means that no repeated transmission is required.
  • the first DCI is used to schedule the second physical shared channel, and the first information field in the first DCI may indicate how many times the ACK/NACK corresponding to the second physical shared channel needs to be repeatedly transmitted.
  • the second information occupies 2 bits and has a total of 4 values, which can represent 1, 2, 3, and 4 repeated transmissions, respectively, where the total number of transmissions can be added to the number of repeated transmissions.
  • each of the above items may be indicated by one piece of second information, or may be indicated by multiple pieces of second information, respectively.
  • the above 1)-10) may not be contradictory, and can be combined arbitrarily.
  • the second information may indicate at least one of 1), 2), 6)-10), or the second information may indicate at least one of 3)-10).
  • different types of DCI may be used to schedule different types of physical shared channels.
  • the different types of physical shared channels may all be physical uplink shared channels or all physical downlink shared channels.
  • different types of DCI can be used to schedule different types of physical uplink shared channels.
  • different types of DCI can be used to schedule different types of physical downlink shared channels.
  • the type of the physical shared channel can be distinguished by the carried service and/or the corresponding logical channel.
  • the services can be divided into enhanced mobile bandwidth (enhanced Mobile Broadband, eMBB) services and ultra-reliable ultra-low latency communication (Ultra-Reliable Low Latency Communications, URLLC) services, at least one parameter corresponding to different logical channels (for example, transmission Delay and reliability, etc.) are different.
  • the DCI scheduling the channel may be the first type DCI
  • the service carried by the physical shared channel is URLLC
  • the DCI scheduling the channel may be the second type DCI.
  • the DCI scheduling the channel may be the first type of DCI
  • the logical channel corresponding to the physical shared channel is the second logical channel other than the first logical channel
  • the DCI scheduling the channel may be the second type of DCI.
  • the DCI scheduling the channel may be the first type of DCI
  • the service carried by the physical shared channel is a URLLC service and corresponds
  • the logical channel of is the second logical channel
  • the DCI scheduling the channel may be the second type of DCI.
  • the types of physical shared channels can also be distinguished by uplink and downlink.
  • the physical uplink shared channel is a type of physical shared channel, scheduled by one type of DCI
  • the physical downlink shared channel is another type of physical shared channel, scheduled by another type of DCI.
  • the second type of DCI in the embodiments of the present application may be used for URLLC services.
  • the URLLC service is characterized by ultra-high reliability (for example, 99.999%) transmission within an extreme delay (for example, 1 ms).
  • ultra-high reliability for example, 99.999%) transmission within an extreme delay (for example, 1 ms).
  • extreme delay for example, 1 ms.
  • the NR Rel-15 system supports repeated transmission of physical channels.
  • a more dynamic transmission mechanism can be introduced for URLLC, such as dynamic indication of repetition Transmission, rapid reuse of HARQ processes, etc. Therefore, the embodiments of the present application can increase the functional requirements of the URLLC service on the basis of not increasing the bit overhead of DCI, and realize the flexible scheduling requirements of the URLLC.
  • DCIs in the same format may have different types of DCIs.
  • DCIs in format 1_0 multiple types of DCIs may be included.
  • different formats of DCI may correspond to different types of DCI, for example, the format 0_0 of the DCI is one type of DCI, and the format 0_1 of the DCI is another type of DCI.
  • different types of DCI may be determined by scrambling the bit value of the second information field in the RNTI of the DCI and/or DCI.
  • the category of the first DCI is the first category
  • the first DCI uses the second RNTI that is not the first RNTI for scrambling the category of the first DCI is the second category
  • the type of the first DCI is the first type
  • the bit value of the second information field is not the first
  • the category of the first DCI is the second category.
  • the length and/or bit position of the first information field may be the same.
  • the length of the first information domain is the first length
  • the first information domain Is a second length
  • the first length is equal to the second length
  • the bit position occupied by the first information domain is the first Bit position
  • the length of the first information field is a second bit position
  • the first bit position is equal to the second bit position
  • the bit position mentioned here may refer to the arrangement position of the first information field in the first DCI, for example, may be the highest bit, the lowest bit, or the middle bit, etc., and may not represent the bit of the first information field
  • the length may also represent the bit length of the first information field, which is not specifically limited in this embodiment of the present application.
  • the length and/or bit position of the first information field may also be different.
  • the length of the first information field and/or the bit position occupied in the first DCI are preset (for example, it may be preset at the terminal device based on the protocol Or on the network side, whereby the terminal device can determine the first information field from the first DCI, and thereby obtain the first information from it, or obtain the first information and the second information.
  • the length and/or position of each piece of information in the first information field in the first information field may be preset, configured on the network side, or determined based on other rules,
  • the number of bits occupied by the first information in the first information field may be different.
  • the bit length of the first information field in DCIs of different categories may be the same, and of course, may also be different.
  • the first quantity may also be equal to the second quantity, or the first quantity may also be less than the second quantity.
  • the bits occupied by the first information in the first information domain are those in the first information domain
  • L is an integer greater than or equal to 1 bits, or other bits may be occupied.
  • the bit position of the first information and/or the second information in the first information field may be preset, may be configured by the network side, or may be based on other Determined by the rules.
  • the way of determining the bit position of the first information and the second information may be different.
  • the bit position of the first information is preset, and the bit position of the second information is configured by the network side.
  • the value range of the first information field is the value range of the first information, which is within the category of the first DCI In the second category, the value range of the first information field is the value range of the second information, where,
  • the second information value range is a subset of the first information value range, or
  • the value range of the second information partially overlaps the value range of the first information, or
  • the value range of the second information is independently configured from the value range of the first information.
  • the value range of the first information field is the value range of the first information, which is within the category of the first DCI In the second category, the value range of the first information field is the value range of the second information;
  • the value range of the first information is preset, and the value range of the second information is configured by the network side, or
  • the first information value range is preset, and the second information value range is preset on the terminal device, or
  • the value range of the first information is configured by the network side
  • the value range of the second information is configured by the network side, or
  • the value range of the first information is configured by the network side, and the value range of the second information is preset.
  • all bits of the information may be located in one information field.
  • all bits of the information may be located in at least one information field.
  • the first information field indicating the second information may include the following case: the first information field includes at least part of the bits indicating the second information. That is, for the second information, the first information field may include part or all of its bits. In the case where a part of bits is included, another part of bits may be included in other information fields in DCI.
  • the first information field and the third information field may exist in the DCI, and the third information field may be composed of other partial bits of the second information, that is, the third information field no longer includes other Of bits.
  • information field 1 includes all bits of information 1 and some bits of information 2, information field 2 only includes other partial bits of information 2, wherein information field 1 may be referred to as a first information field, and information field 2 may be referred to as a first Three information domains.
  • DCI may include at least two first information domains, each of which includes first information (where different first information domains, the functions of the first information may be different) and Partial bits of the second information.
  • information field 1 includes all bits of information 1 and some bits of information 2
  • information field 2 includes all bits of information 3 and other partial bits of information 2
  • information field 1 and information field 2 may both be called first information area.
  • the DCI may include a first information field and a fourth information field, where the fourth information field is used to store at least two partial bits of the second information.
  • information field 1 includes all bits of information 1 and some bits of information 2
  • information field 2 includes all bits of information 3 and some bits of information 4
  • information field 3 includes other bits of information 2 and other parts of information 4 Bits
  • information domain 1 and information domain 2 may be referred to as a first information domain
  • information domain 3 may be referred to as a fourth information domain.
  • Table 1 shows the first type of DCI
  • Table 2 shows the second type of DCI.
  • the first type of DCI there are 4 bits for the frequency domain resource allocation domain, and the 4 bits can all be used to indicate time domain resource allocation; and the second type of DCI shown in Table 2 In the time domain resource allocation domain, there are 3 bits. The 3 bits can be used to indicate time domain resource allocation, and the remaining 1 bit can be used to indicate second information.
  • the first type of DCI can indicate 16 configurations of time domain resource allocation
  • the second type of DCI can be used to indicate 8 configurations of time domain resource allocation.
  • the 8 configurations can belong to 16 configurations, such as the first 8 configurations Or the last 8 types, or the 8 types of configurations may be part of 16 types of configurations.
  • the 8 configurations and the 16 configurations can be independently configured by the network side. Or, one of them is configured on the network side, and the other is a high-level signaling configuration.
  • the first type of DCI there are 5 bits for the modulation and coding scheme domain, which can all be used to indicate the modulation and coding scheme; and in the second type of DCI shown in Table 2, for the modulation and coding scheme domain, there are 4 The 4 bits can be used to indicate the modulation and coding scheme, and the remaining 1 bit can be used to indicate the second information.
  • the first type of DCI can indicate the 32-level scheme of the modulation and coding scheme
  • the second type of DCI can be used to indicate the 16-level scheme of the modulation and coding scheme.
  • the 16-level scheme can belong to the 32-level scheme, for example, it belongs to the first 16-level scheme or The last 16 levels, or the 16-level scheme may partly belong to the 32-level scheme.
  • the 16-level scheme and the 32-level scheme can be independently configured by the network side. Or, one of them is configured on the network side, and the other is a high-level signaling configuration.
  • the first type of DCI there are 5 bits for the HARQ process number field, which can all be used to indicate the HARQ process number; and in the second type of DCI shown in Table 2, for the HARQ process number field, there are 4 The 4 bits can be used to indicate the HARQ process number field, and the remaining 1 bit can be used to indicate the second information.
  • the first type of DCI can indicate that the number of HARQ process numbers is 32
  • the second type of DCI can be used to indicate a maximum of 16 HARQ process numbers.
  • the 16 HARQ process numbers can belong to 32 HARQ process numbers, such as 16 HARQ process numbers or the last 16 HARQ process numbers, or the 16 HARQ process numbers may partially belong to 32 HARQ process numbers.
  • the 16 HARQ process numbers and 32 HARQ process numbers can be independently configured by the network side. Or, one of them is configured on the network side, and the other is a high-level signaling configuration.
  • Table 3 shows that all three information fields can indicate at least two pieces of information, there may actually be one or two such information fields indicating two kinds of information. When there are multiple information fields indicating two types of information, the second information indicated by different information fields may be different.
  • the frequency domain resource allocation domain there are 3 bits, which can be used to indicate time domain resource allocation, and the remaining 1 bit can be used to indicate the currently scheduled physical channel repeated transmission
  • the number of times, for the modulation and coding scheme field there are 4 bits.
  • the 4 bits can be used to indicate the modulation and coding scheme, and the remaining 1 bit can be used to indicate the number of repeated transmissions of the currently scheduled physical channel.
  • the time-domain resource allocation field can be used to indicate 8 configurations of time-domain resource allocation, and the 8 configurations can belong to the 16 configurations that the first type of DCI can indicate, such as the top 8 8 types, or the latter 8 types, or the 8 types of configurations may partially belong to 16 types of configurations.
  • the 8 configurations and the 16 configurations can be independently configured by the network side. Or, one of them is configured on the network side, and the other is a high-level signaling configuration.
  • the modulation and coding scheme field which can be used to indicate the 16 levels of the modulation and coding scheme, which can belong to the 32 levels shown in Table 1, such as The first 16 levels or the last 16 levels, or the 16 levels may partly belong to the 32 levels.
  • the 16 levels and 32 levels can be independently configured by the network side. Or, one of them is configured on the network side, and the other is a high-level signaling configuration.
  • One bit in the time-domain resource allocation field and one bit in the modulation and coding scheme field can be used jointly to indicate the number of repeated transmissions of the currently scheduled physical channel.
  • 00 corresponds to the number of times n1,01 corresponds to n2, 10 corresponds to the number of times n3, 11 corresponds to the number of times n4, and the specific values of n1 to n4 are configured by agreement or high-level signaling.
  • the information field in the first DCI can be used to indicate whether the current DCI is the first type or the second DCI.
  • a type field can be added to the DCI in the format 1_0, and the type field can be 1 The value of this bit is 0, which means that the current DCI is the first type, and the value is 1, which means that the current DCI is the second type.
  • the format 1_0 is used as an example for description.
  • the embodiments of the present application may also be used for the DCI in the format 0_0.
  • the field composition of the DCI in the format 0_0 may be as shown in Table 5 below.
  • the first information domain in the embodiment of the present application may be the following time domain resource allocation domain, modulation and coding scheme domain, or HARQ process number domain.
  • DCI can have multiple categories, one of which can add information to the same information field compared to other categories, and different information can occupy different bits, so that DCI can be flexibly set And, further, when the transmission scenario changes and the DCI function needs to be increased, information can be added in the original information field, thereby avoiding increasing the bit overhead of DCI.
  • FIG. 8 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 includes:
  • the communication unit 410 is configured to receive the first downlink control information DCI;
  • the processing unit 420 is configured to determine information included in the first information field in the first DCI;
  • the first information field indicates the first information, or
  • the first information field indicates the first information and at least one second information, and the first information and the second information are respectively determined by the first information field Different bit indications in.
  • the category of the first DCI is the first category
  • the first DCI uses the non-
  • the category of the first DCI is the second category
  • the type of the first DCI is the first type
  • the bit value of the second information field is not the first
  • the category of the first DCI is the second category.
  • the first information field when the category of the first DCI is the second category, includes a part of bits used to indicate the second information.
  • the first DCI when the category of the first DCI is the second category, the first DCI includes at least two of the first information domains and at least two of the first information domains Each of which includes different partial bits among the bits used to indicate the second information, and the first information indicated by the at least two first information fields respectively have different functions.
  • the other partial bits in the bits used to indicate the second information constitute a third information field.
  • the length of the first information field is the first length
  • the category of the first DCI is the second category
  • the length of the first information field is a second length
  • the first length is equal to the second length
  • the bit position occupied by the first information domain is the first bit position
  • the first information domain Is the second bit position
  • the first bit position is equal to the second bit position
  • the length of the first information field and/or the bit position occupied in the first DCI are preset or configured on the network side.
  • the category of the first DCI when the category of the first DCI is the first category, the number of bits occupied by the first information in the first information field is the first quantity, and the When the category of the first DCI is the second category, the number of bits occupied by the first information in the first information field is a second quantity, and the second quantity is smaller than the first quantity.
  • the bit occupied by the first information in the first information domain is the highest in the first information domain Or the lowest L bits, L is an integer for or equal to 1.
  • the value range of the first information field is the value range of the first information
  • the value range of the first DCI is the value range of the second information
  • the second information value range is a subset of the first information value range, or
  • the value range of the second information partially overlaps the value range of the first information, or
  • the value range of the second information is independently configured from the value range of the first information.
  • the value range of the first information field is the value range of the first information
  • the value range of the first DCI is the value range of the second information
  • the value range of the first information is preset, and the value range of the second information is configured by the network side, or
  • the value range of the first information is preset, and the value range of the second information is preset, or
  • the value range of the first information is configured by the network side
  • the value range of the second information is configured by the network side, or
  • the value range of the first information is configured by the network side, and the value range of the second information is preset.
  • the second information is used for at least one of the following:
  • the first physical shared channel is scheduled by the second DCI before the first DCI.
  • the communication unit 410 when the second information indicates that the first physical channel is released, is further configured to:
  • the first information domain includes at least one of the following information domains: time domain resource allocation information domain, HARQ process number domain, and adjustment coding scheme information domain.
  • the type of the physical shared channel scheduled by the first DCI is different from the DCI where the first DCI is a second category At this time, the type of the physical shared channel scheduled by the first DCI.
  • the different types of physical shared channel categories are distinguished by the carried services or corresponding logical channels.
  • terminal device 400 may be used to implement the corresponding operations implemented by the terminal device in the foregoing method embodiments.
  • the network device 500 includes:
  • the communication unit 510 is configured to send the first downlink control information DCI to the terminal device;
  • the first information field indicates the first information, or
  • the first information field indicates the first information and at least one second information, and the first information and the second information are respectively determined by the first information field Different bit indications in.
  • the category of the first DCI is the first category
  • the first DCI uses the non-
  • the category of the first DCI is the second category
  • the type of the first DCI is the first type
  • the bit value of the second information field is not the first
  • the category of the first DCI is the second category.
  • the first information field when the category of the first DCI is the second category, includes a part of bits used to indicate the second information.
  • the first DCI when the category of the first DCI is the second category, the first DCI includes at least two of the first information domains and at least two of the first information domains Each of which includes different partial bits among the bits used to indicate the second information, and the first information indicated by the at least two first information fields respectively have different functions.
  • the other partial bits in the bits used to indicate the second information constitute a third information field.
  • the length of the first information field is the first length
  • the category of the first DCI is the second category
  • the length of the first information field is a second length
  • the first length is equal to the second length
  • the bit position occupied by the first information domain is the first bit position
  • the first information domain Is the second bit position
  • the first bit position is equal to the second bit position
  • the communication unit 510 is further configured to: configure the terminal device with a length of the first information field and/or a bit position occupied in the first DCI.
  • the category of the first DCI when the category of the first DCI is the first category, the number of bits occupied by the first information in the first information field is the first quantity, and the When the category of the first DCI is the second category, the number of bits occupied by the first information in the first information field is a second quantity, and the second quantity is smaller than the first quantity.
  • the bits occupied by the first information in the first information domain are those in the first information domain
  • L is an integer greater than or equal to 1.
  • the value range of the first information field is the value range of the first information
  • the value range of the first DCI is the value range of the second information
  • the second information value range is a subset of the first information value range, or
  • the value range of the second information partially overlaps the value range of the first information, or
  • the value range of the second information is independently configured from the value range of the first information.
  • the value range of the first information field is the value range of the first information
  • the value range of the first DCI is the value range of the second information
  • the communication unit 510 is further used to:
  • the second information is used for at least one of the following:
  • the first physical shared channel is scheduled by the second DCI before the first DCI.
  • the first information domain includes at least one of the following information domains: time domain resource allocation information domain, HARQ process number domain, and adjustment coding scheme information domain.
  • the type of the physical shared channel scheduled by the first DCI is different from the DCI where the first DCI is a second category At this time, the type of the physical shared channel scheduled by the first DCI.
  • the different types of physical shared channel categories are distinguished by the carried services or corresponding logical channels.
  • network device 500 may be used to implement the corresponding operations implemented by the network device in the foregoing method embodiments, and for the sake of brevity, details are not described here.
  • FIG. 10 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
  • the communication device 600 shown in FIG. 10 includes a processor 610, and the processor 610 can call and run a computer program from the memory to implement the method in the embodiments of the present application.
  • the communication device 600 may further include a memory 620.
  • the processor 610 can call and run a computer program from the memory 620 to implement the method in the embodiments of the present application.
  • the memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • the communication device 600 may specifically be a network device according to an embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. .
  • the communication device 600 may specifically be a mobile terminal/terminal device according to an embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, for simplicity And will not be repeated here.
  • FIG. 11 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 11 includes a processor 710, and the processor 710 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720.
  • the processor 710 can call and run a computer program from the memory 720 to implement the method in the embodiments of the present application.
  • the memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.
  • the chip 700 may further include an input interface 730.
  • the processor 710 can control the input interface 730 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.
  • the chip 700 may further include an output interface 740.
  • the processor 710 can control the output interface 740 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. No longer.
  • chips mentioned in the embodiments of the present application may also be referred to as system-on-chips, system chips, chip systems, or system-on-chip chips.
  • the communication system 800 includes a terminal device 810 and a network device 820.
  • the terminal device 810 can be used to implement the corresponding function implemented by the terminal device in the above method
  • the network device 820 can be used to implement the corresponding function implemented by the network device in the above method.
  • the processor in the embodiments of the present application may be an integrated circuit chip, which has signal processing capabilities.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an existing programmable gate array (Field Programmable Gate Array, FPGA), or other available Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application may be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied and executed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, and registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically Erasable programmable read only memory (Electrically, EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • Synchlink DRAM SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous) DRAM (SDRAM), double data rate synchronous dynamic random access memory (double data) SDRAM (DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memories in the embodiments of the present application are intended to include but are not limited to these and any other suitable types of memories.
  • Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiments of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiments of the present application.
  • the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiments of the present application For the sake of brevity, I will not repeat them here.
  • An embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. Repeat again.
  • the computer program product may be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, I will not repeat them here.
  • An embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program runs on the computer, the computer is allowed to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. And will not be repeated here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program runs on the computer, the computer is implemented by the mobile terminal/terminal device in performing various methods of the embodiments of the present application For the sake of brevity, I will not repeat them here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • 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 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 may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment 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 function 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 part of the contribution to the existing technology 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 are used to enable 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 the embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

L'invention concerne un procédé et un dispositif de communication sans fil, qui peuvent améliorer la flexibilité de réglage de DCI. Le procédé comprend les étapes suivantes : un dispositif terminal reçoit des premières informations de commande de liaison descendante (DCI) ; et le dispositif terminal détermine des informations comprises dans un premier domaine d'informations des premières DCI, la catégorie des premières DCI étant une première catégorie, le premier domaine d'informations indiquant des premières informations, ou, lorsque la catégorie des premières DCI est une seconde catégorie, le premier domaine d'informations indiquant les premières informations et au moins un élément des secondes informations, et les premières informations et les secondes informations étant respectivement indiquées par différents bits dans le premier domaine d'informations.
PCT/CN2018/125740 2018-12-29 2018-12-29 Procédé de communication sans fil, dispositif réseau et dispositif terminal WO2020133457A1 (fr)

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CN114765488A (zh) * 2021-01-14 2022-07-19 大唐移动通信设备有限公司 Harq-ack使能控制方法、装置、设备及存储介质
WO2022152060A1 (fr) * 2021-01-14 2022-07-21 大唐移动通信设备有限公司 Procédé et appareil de commande d'activation d'accusé de réception de demande de répétition automatique hybride (harq-ack), et dispositif et support de stockage
CN114765488B (zh) * 2021-01-14 2024-05-03 大唐移动通信设备有限公司 Harq-ack使能控制方法、装置、设备及存储介质

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