WO2021179268A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2021179268A1
WO2021179268A1 PCT/CN2020/079063 CN2020079063W WO2021179268A1 WO 2021179268 A1 WO2021179268 A1 WO 2021179268A1 CN 2020079063 W CN2020079063 W CN 2020079063W WO 2021179268 A1 WO2021179268 A1 WO 2021179268A1
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WIPO (PCT)
Prior art keywords
information
frequency domain
domain resource
indication
dci format
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Ceased
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PCT/CN2020/079063
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English (en)
French (fr)
Inventor
胡丹
官磊
马蕊香
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2020/079063 priority Critical patent/WO2021179268A1/zh
Priority to JP2022554722A priority patent/JP7477094B2/ja
Priority to CN202510823993.0A priority patent/CN120812744A/zh
Priority to EP20924617.2A priority patent/EP4106448A4/en
Priority to CN202080098333.6A priority patent/CN115280868B/zh
Publication of WO2021179268A1 publication Critical patent/WO2021179268A1/zh
Priority to US17/942,915 priority patent/US20230006797A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • 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 signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1893—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • 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
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • 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 signalling, 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • This application relates to the field of communication, and in particular to a communication method and device.
  • the physical downlink control channel can be used to carry downlink control information (DCI).
  • DCI format (format) 1_0 and the DCI format 1_1 can be used for scheduling data, for example, the frequency domain resource of the data channel is indicated by the DCI.
  • the data channel is, for example, a physical downlink shared channel (PDSCH).
  • the length of the frequency domain resource allocation field of DCI format 1_0 can only be associated with control resource set (CORESET) 0 or initial partial bandwidth (bandwidth part, BWP), so that the frequency domain resources that can be indicated are limited . Therefore, the flexibility of the frequency domain resource indication of the current multicast transmission needs to be improved.
  • the present application provides a communication method and device to improve the flexibility of frequency domain resource indication for multicast transmission.
  • this application provides a communication method.
  • the method can be executed by a terminal device or a chip in the terminal device.
  • the terminal device obtains the first frequency domain resource and the second frequency domain resource.
  • the terminal device receives the first information, and the first information is a group-radio network temporary identifier (G-RNTI).
  • G-RNTI group-radio network temporary identifier
  • the first information indicates the frequency domain resource of the data channel within the range of the first frequency domain resource
  • the first frequency domain resource is configured independently of the second frequency domain resource
  • the second frequency domain resource includes a control resource set (control resource set). set, CORESET) 0 and the initial part of the bandwidth (bandwidth part, BWP).
  • the multicast or broadcast data channel can be scheduled through the first information, where the first frequency domain resource associated with the first information is no longer associated with the CORESET0 and/or the initial BWP configured by the network device, that is, the first
  • the size of frequency domain resources is not limited to CORESET0 or initial BWP, and can be flexibly configured.
  • the size of the first frequency domain resource is not limited to CORESET0 or the initial BWP, and it may also mean that the configured first frequency domain resource may not refer to CORESET0 and/or the initial BWP. Therefore, the flexibility of frequency domain resource indication for multicast transmission is improved.
  • the above first information does not include new data indication, redundancy version, hybrid automatic repeat request (HARQ) process number, downlink allocation index, physical uplink data channel (physical uplink control) channel, PUCCH) an information field that transmits at least one information in a power control command, a PUCCH resource indicator, or a PDSCH to HARQ feedback timing indicator.
  • the first information may not include the DCI format identification information, in other words, the first information does not include the DCI format identification information field, and the DCI format identification information is used to indicate the uplink or downlink DCI format.
  • the information domain indicated by the new data may also be referred to as the new data indication information domain in this application, and the information domain of other information is the same. Therefore, the bits in the above information domain can be used in the first information as bits in other information domains, for example, used to indicate frequency domain resources of the downlink data channel or used to indicate other information, so as to further improve scheduling flexibility.
  • the terminal device may also receive second information, the second information is in a DCI format 1_0, and the second information is scrambled by a cell-radio network temporary identifier (C-RNTI).
  • C-RNTI cell-radio network temporary identifier
  • the second information may include DCI format identification, frequency domain resource allocation, time domain resource allocation, virtual resource block (virtual resource block, VRB) to physical resource block (physical resource block, PRB) mapping (VRB-to-PRB) mapping), modulation and coding mode, new data indication, redundancy version, HARQ process number, downlink allocation index, PUCCH transmission power control command, PUCCH resource indication, and PDSCH to HARQ feedback timing indication.
  • the load size of the first information is the same as the load size of the second information; and/or, the DCI format of the first information is the same as the DCI format of the second information.
  • the bit in the first information corresponding to the first information field can be used in the first information to indicate the frequency domain resource of the downlink data channel, and the first information field is the information field in the second information.
  • the first information field is the information field in the second information.
  • the first information field may be at least one of a DCI format identifier, a new data indicator, a redundancy version, a HARQ process number, a downlink allocation index, a PUCCH transmission power control command, a PUCCH resource indicator, or a PDSCH to HARQ feedback timing indicator Information field of information.
  • the terminal The device also receives third information from the network device.
  • the third information is used to indicate that the terminal device does not support uplink HARQ feedback.
  • the size of the frequency domain resource information field in the above first information may be associated with the first frequency domain resource, or in other words, the size of the frequency domain resource information field in the first information is determined according to the first frequency domain resource.
  • this application provides a communication method.
  • This method can be executed by a network device or a chip in the network device.
  • the network equipment is a wireless access network equipment such as a base station.
  • a network device determines a first frequency domain resource and a second frequency domain resource, where the first frequency domain resource and the second frequency domain resource are independently configured, and the second frequency domain resource includes CORESET0 and an initial BWP .
  • the network device also sends first information to the terminal device, where the first information is used to schedule the downlink data channel of the terminal device.
  • the first information includes frequency domain resource allocation information, and the frequency domain resource allocation information is used to indicate the frequency domain resource of the downlink data channel within the range of the first frequency domain resource.
  • the first information is scrambled by G-RNTI.
  • the above first information does not include at least one of new data indication, redundancy version, HARQ process number, downlink allocation index, PUCCH transmission power control command, PUCCH resource indication, or PDSCH to HARQ feedback timing indication Information domain.
  • the first information may not include the DCI format identification information, in other words, the first information does not include the DCI format identification information field, and the DCI format identification information is used to indicate the uplink or downlink DCI format.
  • the network device may also send second information to the terminal device, where the second information is in the DCI format 1_0, and the second information is scrambled by the C-RNTI.
  • the second information may include DCI format identification, frequency domain resource allocation, time domain resource allocation, VRB to PRB mapping, modulation and coding mode, new data indication, redundancy version, HARQ process number, downlink allocation index, PUCCH Transmission power control command, PUCCH resource indicator, and PDSCH to HARQ feedback timing indicator.
  • the load size of the first information is the same as the load size of the second information; and/or, the DCI format of the first information is the same as the DCI format of the second information.
  • the bit in the first information corresponding to the first information field can be used in the first information to indicate the frequency domain resource of the downlink data channel, and the first information field is the information field in the second information.
  • the first information field is the information field in the second information.
  • the first information field is at least one of DCI format identifier, new data indicator, redundancy version, HARQ process number, downlink allocation index, PUCCH transmission power control command, PUCCH resource indicator, or PDSCH to HARQ feedback timing indicator Information domain.
  • the network The device also sends the third information to the terminal device.
  • the third information is used to indicate that the terminal device does not support uplink HARQ feedback.
  • the size of the frequency domain resource information field in the above first information may be associated with the first frequency domain resource, or in other words, the size of the frequency domain resource information field in the first information is determined according to the first frequency domain resource.
  • this application provides a communication device.
  • the communication device can be used to implement the functions involved in the first aspect or any one of the possible designs of the first aspect. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions or method steps or operations in the above-mentioned first aspect and any of its designs.
  • the communication device may be a terminal device or a chip in a terminal device.
  • the communication device may include a communication module (or called a communication unit) and a processing module (or called a processing unit).
  • the communication module can be used for the communication device to communicate
  • the processing module can be used for the communication device to realize the processing function of the communication device.
  • the processing module can be used to obtain a first frequency domain resource and a second frequency domain resource, where the first frequency domain resource and the second frequency domain resource are independently configured, and the second frequency domain resource includes CORESET0 and an initial BWP .
  • the communication module may be used to receive first information, and the first information is used to schedule a downlink data channel.
  • the first information includes frequency domain resource allocation information, and the frequency domain resource allocation information is used to indicate the frequency domain resource of the downlink data channel within the range of the first frequency domain resource.
  • the first information is scrambled by G-RNTI.
  • the communication module may also be used to receive second information, where the second information is in the DCI format 1_0, and the second information is scrambled by the C-RNTI.
  • the second information may include DCI format identification, frequency domain resource allocation, time domain resource allocation, VRB to PRB mapping, modulation and coding mode, new data indication, redundancy version, HARQ process number, downlink allocation index, PUCCH Transmission power control command, PUCCH resource indicator, and PDSCH to HARQ feedback timing indicator.
  • the communication module can also be used to receive third information from the network device.
  • the third information is used to indicate that the terminal device does not support uplink HARQ feedback.
  • the communication device may include a processor (or a processing chip or a processing circuit) and a transceiver (or a communication circuit).
  • the processor can be used to call program instructions to perform the processing functions of the communication device.
  • the communication module can be used for communication with the communication device.
  • the processor can be used to obtain a first frequency domain resource and a second frequency domain resource, where the first frequency domain resource and the second frequency domain resource are independently configured, and the second frequency domain resource includes CORESET0 and an initial BWP .
  • the transceiver may be used to receive first information, and the first information is used to schedule a downlink data channel.
  • the first information includes frequency domain resource allocation information, and the frequency domain resource allocation information is used to indicate the frequency domain resource of the downlink data channel within the range of the first frequency domain resource.
  • the first information is scrambled by G-RNTI.
  • the transceiver may also be used to receive second information, the second information is in the DCI format 1_0, and the second information is scrambled by the C-RNTI.
  • the second information may include DCI format identification, frequency domain resource allocation, time domain resource allocation, VRB to PRB mapping, modulation and coding mode, new data indication, redundancy version, HARQ process number, downlink allocation index, PUCCH Transmission power control command, PUCCH resource indicator, and PDSCH to HARQ feedback timing indicator.
  • the transceiver can also be used to receive third information from the network device.
  • the third information is used to indicate that the terminal device does not support uplink HARQ feedback.
  • this application provides a communication device.
  • the communication device can be used to implement the above-mentioned second aspect or the functions involved in any possible design of the second aspect.
  • This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions or method steps or operations in the second aspect and any one of its designs.
  • the communication device may be a network device or a chip in a network device.
  • the communication device may include a communication module (or called a communication unit) and a processing module (or called a processing unit).
  • the communication module can be used for the communication device to communicate
  • the processing module can be used for the communication device to realize the processing function of the communication device.
  • the processing module can be used to determine a first frequency domain resource and a second frequency domain resource, where the first frequency domain resource and the second frequency domain resource are independently configured, and the second frequency domain resource includes CORESET0 and an initial BWP .
  • the communication module may be used to send the first information to the terminal device, and the first information is used to schedule the downlink data channel of the terminal device.
  • the first information includes frequency domain resource allocation information, and the frequency domain resource allocation information is used to indicate the frequency domain resource of the downlink data channel within the range of the first frequency domain resource.
  • the first information is scrambled by G-RNTI.
  • the communication module may also be used to send second information to the terminal device, the second information is in the DCI format 1_0, and the second information is scrambled by the C-RNTI.
  • the second information may include DCI format identification, frequency domain resource allocation, time domain resource allocation, VRB to PRB mapping, modulation and coding mode, new data indication, redundancy version, HARQ process number, downlink allocation index, PUCCH Transmission power control command, PUCCH resource indicator, and PDSCH to HARQ feedback timing indicator.
  • the communication module can also be used to send third information to the terminal device.
  • the third information is used to indicate that the terminal device does not support uplink HARQ feedback.
  • the communication device may include a processor (or a processing chip or a processing circuit) and a transceiver (or a communication circuit).
  • the processor can be used to call program instructions to perform the processing functions of the communication device.
  • the communication module can be used for communication with the communication device.
  • the processor may be used to determine a first frequency domain resource and a second frequency domain resource, where the first frequency domain resource and the second frequency domain resource are independently configured, and the second frequency domain resource includes CORESET0 and an initial BWP .
  • the transceiver may be used to send first information to the terminal device, and the first information is used to schedule the downlink data channel of the terminal device.
  • the first information includes frequency domain resource allocation information, and the frequency domain resource allocation information is used to indicate the frequency domain resource of the downlink data channel within the range of the first frequency domain resource.
  • the first information is scrambled by G-RNTI.
  • the transceiver may also be used to send second information to the terminal device, where the second information is in the DCI format 1_0, and the second information is scrambled by the C-RNTI.
  • the second information may include DCI format identification, frequency domain resource allocation, time domain resource allocation, VRB to PRB mapping, modulation and coding mode, new data indication, redundancy version, HARQ process number, downlink allocation index, PUCCH Transmission power control command, PUCCH resource indicator, and PDSCH to HARQ feedback timing indicator.
  • the transceiver can also be used to send third information to the terminal device.
  • the third information is used to indicate that the terminal device does not support uplink HARQ feedback.
  • this application provides a communication system.
  • the communication system may include a communication device for implementing any possible design of the foregoing first aspect or the first aspect, and a communication device for implementing any possible design of the foregoing second aspect or the second aspect.
  • Communication device may include the communication device described in the third aspect and/or the communication device described in the fourth aspect.
  • this application provides a computer storage medium, including program instructions, which when used on a computer, cause the computer to execute any possible design of the first aspect or the first aspect, or the second The method in any one of the possible designs of the aspect or the second aspect.
  • embodiments of the present application provide a computer program product, which when running on a computer, enables the computer to execute any possible design of the first aspect or the first aspect, or the second or second aspect described above Any one of the possible design methods.
  • an embodiment of the present application provides a chip system.
  • the chip system may include a processor, and may also include a memory (or the system chip is coupled to the memory), and the chip system executes the program instructions in the memory to execute Any one of the possible designs of the first aspect or the first aspect described above, or the method in any one of the possible designs of the second aspect or the second aspect described above.
  • “coupled” means that two components are directly or indirectly connected to each other. For example, coupling may refer to electrical connection between the two components.
  • FIG. 1 is a schematic diagram of the architecture of a wireless communication system provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of information domain distribution of a DCI format 1_0 provided by an embodiment of the application;
  • FIG. 3 is a schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 4 is a schematic diagram of a relationship between a first frequency domain resource and a second frequency domain resource provided by an embodiment of this application;
  • FIG. 5 is a schematic diagram of information domain distribution of first information provided by an embodiment of this application.
  • FIG. 6 is a schematic diagram of information domain distribution of another type of first information provided by an embodiment of this application.
  • FIG. 7 is a schematic diagram of information domain distribution of another type of first information provided by an embodiment of this application.
  • FIG. 8 is a schematic diagram of information domain distribution of another type of first information provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 12 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • this application provides a communication method.
  • the application will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific operation methods in the method embodiments introduced below may also be applied to the device embodiment or the system embodiment.
  • the communication method provided by the embodiment of the present application can be applied to a wireless communication system 100.
  • the wireless communication system 100 may include a network device (or access network device) 101, a core network device 102, and at least one terminal device (for example, the terminal device 103 and the terminal device 104 shown in FIG. 1).
  • the terminal device can be connected to the network device 101 in a wireless manner, and the wireless access network device is connected to the core network device 102 in a wireless or wired manner.
  • the core network device 102 and the network device 101 may be independent and different physical devices.
  • the functions of the core network equipment and the logical functions of the radio access network equipment can also be integrated on the same physical device, or part of the core network equipment functions and part of the radio access network can be integrated on a physical device.
  • the function of the device In the following, for convenience of description, the access network device may be referred to as a network device.
  • the terminal device can be a fixed location, or it can be movable. It should be understood that FIG. 1 is only a schematic diagram of a wireless communication system architecture.
  • the communication system provided by the present application may also include other network devices not shown in FIG. 1, such as wireless relay devices and wireless backhaul devices.
  • the embodiments of the present application do not limit the number of core network equipment, radio access network equipment, and terminal equipment included in the mobile communication system.
  • the above wireless communication system 100 can be applied to both low frequency scenarios (sub 6 GHz) and high frequency scenarios (above 6 GHz).
  • the application scenarios of the wireless communication system 100 include, but are not limited to, the new radio (NR) system in the 5th generation (5G) mobile communication system of the long term evolution (LTE) system and the future mobile communication system Wait.
  • NR new radio
  • 5G 5th generation
  • LTE long term evolution
  • the network device 101 may be an access network device (or called an access website point).
  • the access network equipment refers to equipment that provides network access functions, such as a radio access network (RAN) base station and so on.
  • the network device 101 may specifically include a base station (base station, BS), or include a base station and a radio resource management device for controlling the base station, and so on.
  • the network device 101 may also include a relay station (relay device), an access point, and a base station in a future 5G network, a base station in a future evolved PLMN network, or an NR base station, etc.
  • the network device 101 may be a wearable device or a vehicle-mounted device.
  • the network device 101 may also be a chip with a communication module.
  • the network equipment 101 includes but is not limited to: the next generation base station (gnodeB, gNB) in 5G, the evolved node B (evolved node B, eNB) in the LTE system, and the radio network controller (RNC) , Wireless controller under CRAN system, base station controller (BSC), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (baseBand unit, BBU), transmission receiving point ( transmitting and receiving point (TRP), transmitting point (TP) or mobile switching center, etc.
  • the network device 101 may also include a base station in a future 6G or newer mobile communication system.
  • the core network device 102 is deployed on the core network side and is mainly responsible for performing the functions of the core network.
  • the core network device 102 may be a core network element or a chip in a core network element in a 4G, 5G, or future wireless communication system.
  • the terminal equipment shown above may be user equipment (UE), terminal (terminal), access terminal, terminal unit, terminal station, mobile station (MS), remote station, remote terminal, mobile terminal (mobile terminal) terminal), wireless communication equipment, terminal agent or terminal equipment, etc.
  • the terminal device can have a wireless transceiver function, which can communicate with one or more network devices of one or more communication systems (such as wireless communication), and accept network services provided by the network devices.
  • the network devices here include but are not limited to The network device 101 is shown.
  • the terminal equipment may be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, and Handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network or terminal devices in the future evolved PLMN network, etc.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; terminal equipment can also be deployed on the water (such as ships, etc.); terminal equipment can also be deployed in the air (such as airplanes, balloons, and satellites, etc.) .
  • the terminal device may specifically be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiving function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, an industrial control (industrial control) terminal.
  • Wireless terminal in control wireless terminal in self-driving (self-driving), wireless terminal in remote medical (remote medical), wireless terminal in smart grid, wireless terminal in transportation safety (transportation safety) Terminals, wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • the terminal device may also be a communication chip with a communication module, a vehicle with a communication function, or a vehicle-mounted device (such as a vehicle-mounted communication device, a vehicle-mounted communication chip), and so on.
  • terminal equipment can send and receive information within a bandwidth part (BWP) configured by the network equipment 101.
  • a terminal device can be configured with a maximum of 4 downlink BWPs in a serving cell (serving cell) through high-level parameters: BWP-Downlink or high-level parameters: initial downlink BWP (initial downlink BWP).
  • BWP-Downlink high-level parameters: initial downlink BWP (initial downlink BWP).
  • initial downlink BWP initial downlink BWP
  • active BWP active BWP
  • the types of downlink BWP include initial BWP (initial BWP), dedicated BWP (dedicated BWP), and default BWP (default BWP).
  • the initial BWP is the BWP configured in the initial access phase of the terminal device, and the initial BWP is configured by system messages. Therefore, for the terminal devices in the same cell, the initial BWP is the same.
  • the downlink initial BWP is used to transmit the remaining minimum system information (RMSI), the PDSCH of msg2 and msg4 signaling.
  • the dedicated BWP is the BWP configured by the UE in the radio resource control (Radio Resource Control, RRC) connection state, and can only be used for the terminal device to send and receive information.
  • RRC Radio Resource Control
  • each downlink BWP includes at least one control resource set (CORESET) with a dedicated search space.
  • CORESET control resource set
  • Each CORESET may include multiple physical resource blocks in the frequency domain, and the CORESET includes 1 to 3 OFDM symbols in the time domain, and these OFDM symbols may be located at any position in the time slot.
  • the time-frequency resources occupied by CORESET are semi-statically configured by high-level parameters. In the frequency domain, the configuration of CORESET supports continuous and discrete frequency domain resource configuration, and the configured CORESET does not exceed the frequency domain range of activating BWP.
  • the number of resource blocks (resource block, RB) of CORESET0 is indicated by a system message, so for terminal devices in the same cell, CORESET0 is the same.
  • the network device 101 can transmit to multiple terminal devices through multicast transmission.
  • multicast transmission includes, but is not limited to, multicast transmission and/or broadcast transmission.
  • the network device 101 sends a downlink control message to multiple terminal devices in the cell (may be all or part of the terminal devices in the cell) to instruct these terminal devices to receive PDSCH on the same frequency domain resource.
  • the terminal device can receive and send information in the frequency domain resource corresponding to the activated BWP, and the dedicated BWP of each terminal device is independently configured, so it is necessary to send the multicast transmission on the frequency domain resource common to all target terminals.
  • the terminal device can only detect one DCI format in the common search space, that is, DCI format 1_0.
  • the DCI format 1_0 in this application may represent the DCI with the DCI format 1_0. It should be understood that the DCI format 1_0 can be scrambled by multiple radio network temporary identities (RNTI) to represent different information. As an embodiment, the number of bits carried in the DCI format 1_0 scrambled by different RNTIs is usually the same.
  • RNTI radio network temporary identities
  • FIG. 2 is only a schematic diagram.
  • the receiver receives/acquires information of various domains in the DCI according to a predetermined position or arrangement.
  • DCI format 1_0 can include the following information fields:
  • the DCI format identifier (identifier for DCI formats) information field is used to indicate the DCI format.
  • the DCI format identification information field includes a bit, if the bit is set to 1, it is used to identify the downlink DCI format, and if the bit is set to 0, it is used to identify the uplink DCI format.
  • the frequency domain resource assignment (FDRA) information field is used to indicate the frequency domain resources occupied by data channel transmission, such as indicating the starting position of the frequency domain resource (such as the starting RB) and the width (such as the frequency domain resource RB number).
  • the time domain resource assignment (TDRA) information field is used to indicate the time domain resources occupied by the data channel transmission.
  • the virtual resource block (virtual resource block, VRB) to physical resource block (physical resource block, PRB) mapping (VRB-to-PRB) information field is used to indicate whether the VRB to PRB mapping is interlaced or non-interlaced.
  • the modulation and coding scheme (MCS) information field is used to indicate the modulation order and code rate adopted by the data channel.
  • the new data indicator (NDI) information field is used to identify the initial transmission (or first transmission).
  • the bits of this information field are not inverted during retransmission, but inverted during initial transmission.
  • the bit position of the NDI information field in the first transmission of a data packet is 1, and the bit position of the NDI information field in the DCI for 3 retransmissions is 1; if the data to be transmitted next time is the first transmission packet, the NDI in the DCI
  • the bits of the information field are flipped to 0.
  • the redundancy version (RV) information field is used to indicate the RV of the scheduled data channel.
  • RV redundancy version
  • the redundant bits generated by the encoder are divided into several groups, each RV defines a transmission start point, and different RVs are used for the first transmission and each HARQ retransmission to realize the gradual accumulation of redundant bits and complete the incremental redundancy. I HARQ operation.
  • the HARQ process number (HARQ process number, HPN) information field is used to indicate the HARQ process number of the data.
  • the downlink assignment index (downlink assignment index) information field is used to indicate the number of the data channel fed back in a codebook when the dynamic codebook is constructed.
  • the transmission power control (TPC) command (TPC command for scheduled PUCCH) information field of the PUCCH.
  • TPC command TPC command for scheduled PUCCH
  • the information field is used to adjust the power of the PUCCH that carries the HARQ feedback information.
  • PUCCH resource indicator (PUCCH resource indicator) information field.
  • the information field is used to indicate the resource of the PUCCH that carries the feedback information HARQ.
  • PDSCH to HARQ feedback timing indicator (PDSCH-to-HARQ_feedback timing indicator) information field may be referred to as K1 information field.
  • this information field is used to indicate the time slot of the DCI-scheduled data channel to the offset of the time slot of the HARQ channel carrying the HARQ corresponding to the PDSCH (hereinafter may be referred to as PDSCH Feedback timing to HARQ).
  • the information field may refer to the bits contained in the information field; or the information field may refer to the information corresponding to the information field, such as the value of the bit contained in the information field and/or the value of the bit.
  • Information represented may be a bit corresponding to the DCI format identification information field, or the DCI format identification information field may be the value of the bit and/or the information represented by the value of the bit.
  • DCI format 1_0 may include frequency domain resource allocation information field and time domain resource allocation information Field, VRB to PRB mapping information field, modulation and coding mode information field, system information indicator field (system information indicator), and reserved bits (or called reserved bits). It can also be scrambled by other signs.
  • SI-RNTI system information-radio network temporary identifier
  • DCI format 1_0 may include frequency domain resource allocation information field and time domain resource allocation information Field, VRB to PRB mapping information field, modulation and coding mode information field, system information indicator field (system information indicator), and reserved bits (or called reserved bits). It can also be scrambled by other signs.
  • the size of the information field shown in FIG. 2 does not represent the actual length of the information field in the DCI (that is, the number of bits contained in the information field).
  • the size of the frequency domain resource allocation information field of the above DCI format 1_0 (that is, the number of bits contained in the frequency domain resource allocation information field) is determined according to the frequency domain width corresponding to CORESET0 or the initial BWP, which means that multicast transmission is performed according to the prior art
  • the frequency domain resource can only be CORESET0 or the initial BWP, which affects the flexibility of frequency domain resource scheduling for multicast transmission.
  • the communication method provided by the embodiment of the present application can be executed by the network device 101 and at least one terminal device to improve the flexibility of frequency domain resource scheduling in multicast transmission.
  • the terminal device may include the terminal device 103, the terminal 104, and/or other terminal devices not shown in FIG. 1.
  • the method may include the following steps shown in Figure 3:
  • the terminal device obtains the first frequency domain resource.
  • the terminal device may obtain the starting RB and the frequency domain width of the first frequency domain resource through a system message or a high-level parameter.
  • the terminal device may obtain the first frequency domain resource through a system message or RRC signaling.
  • the frequency domain resource is the first BWP.
  • the first frequency domain resource may also be dynamically indicated through DCI.
  • system messages, RRC signaling, or DCI can be used to indicate the index of the first BWP (such as the BWP identifier), the starting position of the first frequency domain resource, the frequency domain width of the first frequency domain resource, or the first frequency domain resource At least one item in the parameter set (numerology).
  • the parameter set of the first frequency domain resource includes subcarrier spacing (SCS) and cyclic prefix (CP).
  • the first frequency domain resource is a subset or a proper subset of the third frequency domain resource.
  • the third frequency domain resource is the activated BWP.
  • the terminal device can obtain the third frequency domain resource through system messages or RRC signaling.
  • the terminal device also obtains the second frequency domain resource.
  • the first frequency domain resource and the second frequency domain resource are independently configured. In other words, the first frequency domain resource does not depend on the configuration of the second frequency domain resource.
  • the first frequency domain resource and the second frequency domain resource are independently configured, which may mean that the first frequency domain resource and the second frequency domain resource use different signaling configurations, or it may mean that the first frequency domain resource and the second frequency domain resource use different signaling configurations.
  • the frequency domain resources and the second frequency domain resources are configured by different fields in the same signaling.
  • the configurations between different signalings do not refer to each other, or between different fields is Do not refer to each other.
  • the second frequency domain resource may be configured by the network device 101 through system messages, and the first frequency domain resource may be configured by the network device 101 through high-level signaling.
  • the first frequency domain resource is configured by first RRC signaling
  • the second frequency domain resource is configured by second RRC signaling.
  • the frequency domain width of the second frequency domain resource is the number of PRBs corresponding to CORESET0, and CORESET0 is configured by system messages.
  • the frequency domain width of the second frequency domain resource is the initial BWP, and the initial BWP is configured by system messages or high-level parameters.
  • the frequency domain width of the second frequency domain resource is a predefined BWP or a predefined frequency domain width.
  • the first frequency domain resource and the second frequency domain resource are independently configured, which may mean that the configuration of the first frequency domain resource does not refer to the second frequency domain resource, for example, the frequency of the first frequency domain resource.
  • the domain width is independent of the frequency domain width of the second frequency domain resource, and/or the starting position of the first frequency domain resource is independent of the starting position of the second frequency domain resource.
  • the first parameter used to configure the first frequency domain resource may be determined without referring to the second parameter, and the second parameter is used to configure the second frequency domain resource.
  • the first parameter may be a direct parameter used to determine the first frequency domain resource.
  • the first parameter includes the first frequency domain resource; the first parameter may also be an indirect parameter used to determine the first frequency domain resource, such as ,
  • the first parameter includes a resource indication value (RIV) and/or other parameters for configuring frequency domain resources.
  • the second parameter may be a direct parameter or an indirect parameter used to determine the second frequency domain resource.
  • the first information may include parameter B, which is not determined with reference to parameter A. If the second frequency domain resource includes the initial BWP, where the initial BWP is determined according to the parameter C, the first information may include the parameter B, which is not determined with reference to the parameter C. If the second frequency domain resource includes CORESET0 and the initial BWP, where CORESET0 is determined according to parameter A and the initial BWP is determined according to parameter C, then the first information may include parameter B, which is not determined with reference to parameter A, And the parameter B is not determined with reference to the parameter C.
  • the following uses examples to illustrate possible configurations of the first frequency domain resource and the second frequency domain resource.
  • the start position of the first frequency domain resource and the start position of the second frequency domain resource are independent of each other and do not refer to each other, and the frequency domain width of the first frequency domain resource and the first frequency domain resource are independent of each other.
  • the frequency domain widths of the two frequency domain resources are independent of each other and do not refer to each other.
  • the start position of the first frequency domain resource in the frequency domain is f1, the start position of the second frequency domain resource is f2, and f1 is not equal to f2, f1 Not determined with reference to f2;
  • the frequency domain width of the first frequency domain resource is F1, the frequency domain width of the second frequency domain resource is F2, and F1 is not equal to F2, and F1 is not determined with reference to F2.
  • the start position of the first frequency domain resource and the start position of the second frequency domain resource are independent of each other and do not refer to each other.
  • the frequency domain width of the first frequency domain resource can be determined with reference to the frequency domain width of the second frequency domain resource.
  • the frequency domain width of the first frequency domain resource is set according to the frequency domain width of the second frequency domain resource, such as setting the first frequency domain resource.
  • the width of a frequency domain resource is equal to the frequency domain width of the second frequency domain resource, or there is a multiple relationship between the frequency domain width of the first frequency domain resource and the frequency domain width of the second frequency domain resource, and so on.
  • the frequency domain starting position of the first frequency domain resource shown by numbers (c) and (d) in FIG. 4 is f1
  • the starting position of the second frequency domain resource is f2
  • f1 is not equal to f2
  • f1 is not Determine with reference to f2
  • the frequency domain width of the first frequency domain resource is set to be the same as the frequency domain width of the second frequency domain resource, for example, both are F0.
  • the frequency domain width of the first frequency domain resource and the frequency domain width of the second frequency domain resource are independent of each other and do not refer to each other.
  • the starting position of the first frequency domain resource can be determined with reference to the starting position of the second frequency domain resource, for example, the starting position of the first frequency domain resource is set according to the starting position of the second frequency domain resource, such as setting the first frequency domain resource
  • the start position of a frequency domain resource is equal to the start position of the second frequency domain resource, or the frequency domain width of the first frequency domain resource is set to have a multiple relationship with the frequency domain width of the second frequency domain resource, and so on.
  • the frequency domain width of the first frequency domain resource shown by the number (e) in FIG. 4 is F1
  • the frequency domain width of the second frequency domain resource is F2, and F1 is not equal to F2, and F1 is not determined with reference to F2
  • the start position of the first frequency domain resource is set to be the same as the start position of the second frequency domain resource, and both are f0.
  • the starting position of the first frequency domain resource and the starting position of the second frequency domain resource may be the same, the frequency domain width of the first frequency domain resource and the frequency domain width of the second frequency domain resource may be the same, where the first The start position of the frequency domain resource is not determined with reference to the start position of the second frequency domain resource, and the frequency domain width of the first frequency domain resource is not determined with reference to the frequency domain width of the second frequency domain resource.
  • the frequency domain start position of the first frequency domain resource and the start position of the second frequency domain resource as shown by the number (f) in FIG. 4 are both f0; the frequency domain width of the first frequency domain resource and the second frequency domain The frequency domain width of resources is F0.
  • the first frequency domain resource and the second frequency domain resource are independently configured, which may mean that the parameters of the frequency domain resource configured by the network device for the first frequency domain are sufficient to determine the first frequency domain resource, and/or, The parameter of the frequency domain resource configured by the network device for the second frequency domain is sufficient to determine the second frequency domain resource.
  • any of the above methods can also be implemented in combination, that is, the first The frequency domain resources and the second frequency domain resources are configured through independent signaling, and/or the first frequency domain resources and the second frequency domain resources do not refer to each other, and/or the frequency domain resources configured for the second frequency domain The parameters are sufficient to determine the second frequency domain resource.
  • the second frequency domain resource may include CORESET0 and initial BWP.
  • CORESET0 and/or initial BWP can be configured through system messages or RRC signaling.
  • CORESET0 represents the control resource set whose index number is 0.
  • the UE determines the control resource set used for the type OPDCCH common search space set through a master information block (MIB).
  • MIB master information block
  • the number of contiguous resource blocks in the control resource set of the type OPDCCH public search space set is obtained through the system message pdcch-ConfigSIB1 or the parameter controlResourceSetZero in the high-level parameter PDCCH-ConfigCommon, that is, the frequency domain width corresponding to the CORESET0.
  • the UE obtains the initial downlink BWP through the high-layer parameter initialDownlinkBWP. If the UE does not obtain the high-level parameter initialDownlinkBWP, the frequency domain width of the second frequency domain resource is determined by CORESET0. In other words, if the UE does not obtain the high-level parameter initialDownlinkBWP, the initial downlink BWP is defined as a set of continuous PRBs, the starting PRB is the PRB with the smallest index in the control resource set of the type OPDCCH common search space set, and the ending PRB is the type OPDCCH common The PRB with the largest index in the control resource set of the search space set.
  • the starting position of the first frequency domain resource and the starting position of the second frequency domain resource may be the same or different.
  • the frequency domain width of the first frequency domain resource and the frequency domain width of the second frequency domain resource may be the same or different.
  • the index number of the RB corresponding to the start position of the first frequency domain resource may be greater than the index number of the RB corresponding to the start position of the second frequency domain resource, or the index number of the RB corresponding to the start position of the first frequency domain resource The index number may be smaller than the index number of the RB corresponding to the start position of the second frequency domain resource.
  • the frequency domain width of the first frequency domain resource may be greater than the frequency domain width of the second frequency domain resource, or the frequency domain width of the first frequency domain resource may be smaller than the frequency domain width of the second frequency domain resource.
  • the relationship between the first frequency domain resource and the second frequency domain resource is shown in any one of numbers (a), (b), (c), (d), (e), or (f) in Figure 4 .
  • the frequency domain start position of the first frequency domain resource is f1
  • the start position of the second frequency domain resource is f2, and f1 is not equal to f2
  • the first frequency domain The frequency domain width of the resource is F1
  • the frequency domain width of the second frequency domain resource is F2
  • F1 is not equal to F2.
  • the frequency domain start position of the first frequency domain resource is f1
  • the start position of the second frequency domain resource is f2, and f1 is not equal to f2
  • the frequency domain width and the frequency domain width of the second frequency domain resource are both F0.
  • the frequency domain start position of the first frequency domain resource and the start position of the second frequency domain resource as shown by the number (e) are both f0; the frequency domain width of the first frequency domain resource is F1, and the second frequency domain resource The frequency domain width of is F2, and F1 is not equal to F2.
  • the frequency domain start position of the first frequency domain resource and the start position of the second frequency domain resource as shown by the number (f) are both f0; the frequency domain width of the first frequency domain resource and the frequency domain of the second frequency domain resource
  • the field widths are all F0.
  • the network device sends first information to the terminal device, where the first information is used to schedule a downlink data channel.
  • the first information includes frequency domain resource allocation information.
  • the frequency domain resource allocation information is used to indicate the frequency domain resource of the downlink data channel within the range of the first frequency domain resource.
  • the frequency domain resource allocation information may be a resource indicator value (represented by RIV in the following formula), and the resource indicator value may satisfy an association relationship with the starting RB of the PDSCH and the number of consecutive RBs.
  • RIV satisfies the following formula:
  • the PDSCH start RB can be expressed as the offset between the smallest RB corresponding to the PDSCH and the smallest RB of the first frequency domain resource.
  • the first information is scrambled by G-RNTI, that is, the first information is sent to one or more terminal devices including terminal devices, and the data channel scheduled by the first information is multicast Or broadcast transmission.
  • the above frequency domain resource allocation information may also be an explicit indication of frequency domain resources, or an implicit indication of the association relationship between certain parameters and the frequency domain; in some embodiments, the allocated frequency domain
  • the resource is not limited or not limited to the scope of the above-mentioned first frequency domain resource. It can be that the terminal device directly obtains the frequency domain resource information and then directly uses it in subsequent communications, or after the terminal device obtains the first information, and then cooperates with the acquired first frequency domain resource to determine the final communication in the subsequent communication according to preset rules. Frequency domain resources used in the process.
  • the terminal device receives the first information.
  • the multicast or broadcast data channel can be scheduled through the first information, where the first frequency domain resource associated with the first information is no longer associated with the CORESET0 and/or the initial BWP configured by the network device 101, that is, the first
  • the size of a frequency domain resource is not limited to CORESET0 or the initial BWP, and can be flexibly configured.
  • the size of the first frequency domain resource is not limited to CORESET0 or the initial BWP, and it may also mean that the configured first frequency domain resource may not refer to CORESET0 and/or the initial BWP. Therefore, the flexibility of frequency domain resource indication for multicast transmission is improved.
  • first information is DCI.
  • the first information does not include the first information domain.
  • the first information field may include a DCI format identification information field.
  • the first information field may include a new data indication information field, a redundancy version information field, a HARQ process number information field, a downlink allocation index information field, a PUCCH transmission power control command information field, a PUCCH resource indication information field, or a PDSCH to HARQ feedback
  • the timing indicates at least one information domain in the information domain.
  • the first information domain may further include at least one of the virtual resource block-to-physical resource block mapping information domain, and the modulation and coding mode information domain. Therefore, the bits corresponding to the above first information domain may be used in the first information as bits in other information domains, for example, used to indicate frequency domain resources of the downlink data channel, so as to further improve the flexibility of frequency domain resource indication.
  • the bit corresponding to the first information field in the first information refers to the serial number and the second information in the first information.
  • the bits occupied by the first information field have the same sequence number.
  • the nth bit is the bit occupied by the first information field, then in the first information, the nth bit can be regarded as the bit corresponding to the first information field in the first information , N is a positive integer.
  • the network device 101 may also send the second information to the terminal device.
  • the second information can be scrambled by C-RNTI or other RNTI.
  • the information domain of the second information may include the DCI format identification information domain, the frequency domain resource allocation information domain, the time domain resource allocation information domain, the VRB to PRB mapping information domain, and the modulation and coding method as shown in FIG. 2 Information field, new data indication information field, redundancy version information field, HARQ process number information field, downlink allocation index information field, PUCCH transmission power control command information field, PUCCH resource indication information field, and PDSCH to HARQ feedback timing indication information field.
  • the size of the frequency domain resource allocation information field of the second information is determined according to CORESET0 or the initial BWP.
  • the size l of the frequency domain resource allocation information field of the second information satisfies the following formula:
  • CORESET0 Represents the width of CORESET0 or the width of the initial BWP.
  • the width of CORESET0 is 24, 48, or 96 RBs.
  • the second information may be DCI format 1_0.
  • the number of bits of the second information is the same as that of the first information.
  • the first information is composed of a frequency domain resource allocation information domain, a time domain resource allocation information domain, a VRB to PRB mapping information domain, a modulation and coding method information domain, and reserved bits.
  • the information domain of the first information in this application may be composed of a frequency domain resource allocation information domain, a time domain resource allocation information domain, a VRB to PRB mapping information domain, and a modulation and coding method information domain.
  • the bit occupied by the first information field in the second information is used in the first information to indicate frequency domain resource allocation, or the bit in the first information is a bit field corresponding to the FDRA information field, such as Shown in Figure 5.
  • the bits occupied by the first information field in the second information are included in the FDRA information field, thereby increasing the size of the FDRA information field, as shown in Figure 6, or adding the FDRA information field contains The number of bits to achieve a more flexible frequency domain resource indication.
  • the first information field may include the DCI format identification information field, the new data indication information field, the redundancy version information field, the HARQ process number information field, the downlink allocation index information field, the PUCCH transmission power control command information field, and the PUCCH resource indication information. Field or at least one information field in the PDSCH to HARQ feedback timing indication information field.
  • the first bit in the second information is a bit occupied by the DCI format identification information field, there is no DCI format identification information field in the first information, and the first bit is used to indicate frequency domain resource allocation.
  • the m-th bit in the second information is a new data indicating information field, there is no new data indicating information field in the first information, and the m-th bit is used to indicate frequency domain resource allocation.
  • m is a positive integer.
  • the a to b bits in the second information are the downlink allocation request information field, there is no downlink allocation request information field in the first information, and the a to b bits are used to indicate frequency domain resource allocation.
  • a and b are positive integers and a ⁇ b.
  • the load size of the first information shown in FIG. 5 is the same as the load size of the second information.
  • the load size of the first information and the load size of the second information shown in FIG. 5 are both 1+28 bits.
  • l represents the number of bits in the frequency domain resource allocation information field of the second information, which is determined according to the width of CORESET0 and the initial BWP or the number of consecutive resource blocks, as shown in formula 4.
  • 28 represents the sum of the number of bits in all the information fields except for the frequency domain resource allocation information field in the second information.
  • the information field of the first information may include the FDRA information field, TDRA information field, VRB to PRB mapping information field, and reserved bits.
  • the size L 0 of reserved bits in the first information shown in FIG. 6 satisfies the following formula 5:
  • L 1 4 bits
  • the optional reserved bit L 0 can be equal to zero.
  • the size of the frequency domain resource allocation information field of the first information as shown in FIG. 5 and/or FIG. 6 is associated with the first frequency domain resource.
  • the size of the frequency domain resource allocation information domain of the first information is determined according to the first frequency domain resource.
  • the size of the frequency domain resource allocation information domain of the first information is determined according to the width of the first frequency domain resource (for example, the number of RBs of the first frequency domain resource).
  • the frequency domain resource allocation information domain contains L bits and satisfies the following formula 6:
  • the format of the first information shown in FIG. 5 and/or FIG. 6 above may be DCI format 1_0, that is, the DCI format of the first information and the second information may be the same.
  • the terminal device may perform data transmission according to the scheduling of the first information.
  • the first information shown in FIG. 5 and/or FIG. 6 may be applied to scenarios where the terminal device does not support uplink HARQ feedback.
  • the network device 101 may send third information to the terminal device, where the third information is used to indicate that the terminal device does not support uplink HARQ feedback in the current transmission.
  • the terminal device may support uplink HARQ feedback by default.
  • the third information may be dynamic signaling, such as DCI signaling.
  • the third information may be high-level signaling, including radio resource control RRC signaling, or media access control (media access control, MAC) control element (CE).
  • the terminal device receives the third information from the network device 101.
  • the third information is used to indicate that uplink HARQ feedback is not supported, and the first information may include a frequency domain resource allocation information field, a time domain resource allocation information field, a VRB to PRB mapping information field, and a modulation and coding scheme information field.
  • the first information does not include the new data indication information field, the redundancy version information field, the HARQ process number information field, the downlink allocation index information field, the PUCCH transmission power control command information field, the PUCCH resource indication information field, or the PDSCH to HARQ feedback timing Indicates at least one information domain in the information domain.
  • the bit corresponding to at least one information domain in the domain is used in the first information to indicate frequency domain resource allocation.
  • the first information may have the structure shown in FIG. 5 and/or FIG. 6.
  • the first information may include frequency domain resource allocation information domain, time domain resource allocation information domain, VRB to PRB mapping information domain, modulation and coding method information Domain, new data indication information domain, redundancy version information domain, HARQ process number information domain, downlink allocation index information domain, PUCCH transmission power control command information domain, PUCCH resource indication information domain, and PDSCH to HARQ feedback timing indication information domain.
  • the first information includes the new data indication information field, the redundancy version information field, the HARQ process number information field, the downlink allocation index information field, the PUCCH transmission power control command information field, the PUCCH resource indication information field, and the PDSCH to HARQ feedback timing Indicates at least one information domain in the information domain.
  • the fourth information may be dynamic signaling, such as DCI signaling.
  • the fourth information may be high-layer signaling, including radio resource control RRC signaling, or MAC CE.
  • the bit corresponding to the first information field in the first information may be used to indicate frequency domain resource allocation.
  • the nth bit in the second information is the bit occupied by the first information field, then in the first information, the nth bit is the bit in the first information corresponding to the first information field. To indicate frequency domain resource allocation.
  • the nth bit in the second information is included in the DCI format identification information field, the new data indication information field, the redundancy version information field, the HARQ process number information field, the downlink allocation index information field, and the transmission power control of PUCCH Information field, PUCCH resource indication information field, or PDSCH to HARQ feedback timing indication information field
  • the nth bit in the first information can be used to indicate frequency domain resource allocation, or in other words, the nth bit in the first information Contained in the frequency domain resource allocation information field, n is a positive integer.
  • the first bit is used to indicate the DCI format, that is, in the information field of the second information, the bit corresponding to the DCI format identification information field includes the first bit in the information field of the second information.
  • 1 bit, in the first message, the first bit is due to frequency domain resource allocation.
  • the DCI format of the first information is different from the DCI format 1_0.
  • the load size of the first information and the second information may be different. All the bits in the first information have their own functions.
  • the first information may not include reserved bits.
  • the first information does not include the first information domain.
  • the information domain of a type of first information in this application consists of frequency domain resource allocation information domain, time domain resource allocation information domain, VRB to PRB mapping information domain, modulation and coding method information domain, and new data indication Information field, redundancy version information field, HARQ process number information field, downlink allocation index information field, PUCCH transmission power control command information field, PUCCH resource indication information field, and PDSCH to HARQ feedback timing indication information field.
  • the information domain in the first information is: frequency domain resource allocation information domain, time domain resource allocation information domain, VRB to PRB mapping information domain, modulation and coding mode information domain.
  • the size of the time domain resource allocation information field in the first information shown in FIG. 7 may be the same as the size of the time domain resource allocation information field in the second information, for example, both are 4 bits;
  • the size of the VRB to PRB mapping information field may be the same as the size of the VRB to PRB mapping information field in the second information, for example, 1 bit;
  • the size of the modulation and coding mode information field in the first information may be the same as that in the second information.
  • the size of the modulation and coding mode information field is the same, for example, both are 5 bits; the size of the new data indicating information field in the first information can be the same as the size of the new data indicating information field in the second information, for example, both are 1 bit ; The size of the modulation and coding mode information field in the first information can be the same as the size of the modulation and coding mode information field in the second information, for example, both are 5 bits; the size of the downlink allocation index information field in the first information can be The size of the downlink allocation index information field in the second information is the same, for example, 2 bits; the size of the PUCCH transmission power control command information field in the first information can be the same as the PUCCH transmission power control command information in the second information The size of the fields is the same, for example, both are 2 bits.
  • the bits occupied by the first information domain may be used in the first information shown in FIG. 7 to indicate frequency domain resource allocation.
  • the bits occupied by the first information domain in the second information are included in the FDRA information domain shown in FIG. 6, thereby increasing the size of the frequency domain resource allocation information domain, or increasing the frequency domain resources
  • the number of bits contained in the information field is allocated, thereby realizing more flexible frequency domain resource indication.
  • the first bit in the second information is the bit occupied by the DCI format identification information field, there is no DCI format identification information field in the first information, and the first bit in the first information is used to indicate the frequency Domain resource allocation.
  • the size of the FDRA domain is determined by the frequency domain width of the first frequency domain resource.
  • the size of the frequency domain resource allocation information domain as shown in FIG. 6 is related to the width of the first frequency domain resource (for example, the number of RBs of the first frequency domain resource).
  • the size L of the frequency domain resource allocation information domain satisfies the above formula 4.
  • the network device 101 can set the necessary information field and the number of bits in the broadcast-multicast DCI through high-level signaling:
  • the size of the redundancy version information field can be determined by the terminal device according to the first indication information from the network device 101.
  • the first indication information may be RRC signaling.
  • the first indication information is used to indicate the number of bits m of the redundancy version information field.
  • the size of the HARQ process number information field can be determined by the terminal device according to the second indication information from the network device 101.
  • the second indication information may be RRC signaling.
  • the second indication information is used to indicate the number of bits n of the HARQ process number information field.
  • the number of second indication information is I 1 ,
  • the size of the PDSCH to HARQ feedback timing indication information field can be determined by the terminal device according to the third indication information from the network device 101.
  • the third indication information may be RRC signaling.
  • the third indication information is used to indicate the number of bits q of the information field. Or, the number of the third indication information is I 2 ,
  • the value of q can be 0, 1, 2, or 3.
  • the PDSCH to HARQ feedback timing is determined by high-layer parameters.
  • the size of the PUCCH resource indication information field can be determined by the terminal device according to the fourth indication information from the network device 101.
  • the fourth indication information may be RRC signaling.
  • the fourth indication information is used to indicate the number of bits p of the information field. Or, the number of fourth indication information is I 3 , The value of p can be 0, 1, 2, or 3. When p is 0, PUCCH resources are determined by high-level parameters.
  • the information domain of the first information at this time may include frequency domain resource allocation information domain, time domain resource allocation information domain, VRB to PRB mapping information domain, modulation and coding mode information domain, new data indication information domain, Redundancy version information field, HARQ process number information field, downlink allocation index information field, PUCCH transmission power control command information field, PUCCH resource indication information field, PDSCH to HARQ feedback timing indication information field and reserved bits.
  • the size of reserved bits L 0 can satisfy the following formula:
  • l is determined according to the width of CORESET0 and the initial BWP. Exemplarily, l satisfies formula four. L satisfies formula five.
  • K is the DCI format identification information field, the time domain resource allocation information field, the VRB to PRB mapping information field, the modulation and coding method information field, the new data indication information field, the redundancy version information field, and the HARQ process number information in the second information.
  • m is the size of the redundant version information field in the first information.
  • n is the length of the HARQ process number information field in the first message.
  • q is the length of the PDSCH to HARQ feedback timing indication information field in the first information.
  • p is the length of the PUCCH resource indication information field in the first information.
  • the format of the first information shown in FIG. 7 and/or FIG. 8 may be different from DCI format 1_0, DCI format 1_1, and/or DCI format 1_2.
  • the first information shown in FIG. 7 and/or FIG. 8 can be applied to a scenario where the terminal device does not support uplink HARQ feedback.
  • the network device 101 may send fourth information to the terminal device, where the fourth information is used to indicate that the terminal device supports uplink HARQ feedback.
  • the terminal device may support uplink HARQ feedback by default.
  • the bits corresponding to the DCI format identification information field in the second information are used to indicate frequency domain resource allocation in the first information.
  • the information domain structure of the first information can be as shown in FIG. 7 and/or FIG. Modulation and coding method information field, new data indicator information field, redundancy version information field, HARQ process number information field, downlink allocation index information field, PUCCH transmission power control command information field, PUCCH resource indicator information field, and PDSCH to HARQ feedback timing Indicates the composition of the information domain.
  • the network device 101 may send a data channel to the terminal device, and the terminal device receives the data channel according to the frequency domain resource indicated by the first information.
  • an embodiment of the present application also provides a communication device, which may have the functions or steps or operations of the network device or terminal device in the above method embodiment.
  • a communication device may be provided with functional modules corresponding to the functions or steps or operations in the above-mentioned methods to support the communication device to execute the above-mentioned methods.
  • This function can be realized by hardware, or by software or hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device may be a chip or a communication chip with a communication module, or may be implemented by a chip or a communication chip with a communication module.
  • the communication device 900 shown in FIG. 9 can be used as the terminal device involved in the foregoing method embodiment, and executes the steps performed by the terminal device in the foregoing method embodiment.
  • the communication device 900 may include a communication module 901 and a processing module 902, and the communication module 901 and the processing module 902 are coupled to each other.
  • the communication module 901 can be used to support the communication device 900 to perform communication, and the communication module 901 can have a wireless communication function, for example, can perform wireless communication with other communication devices through a wireless air interface.
  • the processing module 902 can be used to support the communication device 900 to perform the processing actions in the foregoing method embodiments, including but not limited to: generating information and messages sent by the communication module 901, and/or demodulating the signals received by the communication module 901 Decoding and so on.
  • the above communication module 901 may be specifically used to perform the sending and/or receiving actions of the terminal device in the communication method shown in FIG. 3.
  • the communication module 901 may be used to perform an action of sending information, messages, or signaling from a terminal device to a network device, or to perform an action of receiving information, messages, or signaling from a network device.
  • the above processing module 902 can be specifically used to perform processing actions of the terminal device in the communication method shown in FIG. 3, such as controlling the communication module 901 to receive and send information, messages or signaling, and perform operations such as information processing.
  • the processing module 902 may be used to obtain a first frequency domain resource and a second frequency domain resource, where the first frequency domain resource and the second frequency domain resource are independently configured, and the second frequency domain resource includes CORESET. And the initial BWP.
  • the communication module 901 may be used to receive first information, and the first information is used to schedule a downlink data channel.
  • the first information includes frequency domain resource allocation information, and the frequency domain resource allocation information is used to indicate the frequency domain resource of the downlink data channel within the range of the first frequency domain resource.
  • the first information is scrambled by G-RNTI.
  • the first frequency domain resource and/or the second frequency domain resource may be configured by a network device.
  • For the setting method of the first information please refer to the description of the method embodiment part of this application.
  • the communication module 901 may also be used to receive second information, where the second information is in the DCI format 1_0, and the second information is scrambled by the C-RNTI.
  • the second information is in the DCI format 1_0
  • the second information is scrambled by the C-RNTI.
  • the setting method of the second information please refer to the description of the method embodiment part of this application.
  • the communication module 901 can also be used to receive third information from the network device.
  • the third information is used to indicate that the terminal device does not support uplink HARQ feedback.
  • For the setting method of the third information please refer to the description of the method embodiment part of this application.
  • the communication device provided in the embodiment of the present application may also be composed of hardware components, such as a processor, a memory, or a transceiver.
  • a mobile phone is taken as an example to illustrate the possible structure of the terminal device.
  • the communication device 1000 may include a processor 1001, a memory 1002, and a transceiver 1003.
  • the above processor 1001 can be used to process communication protocols and communication data, control terminal devices, execute software programs, and process data of software programs, and so on.
  • the memory 1002 may be used to store programs and data, and the processor 1001 may execute the method executed by the terminal device in the embodiments of the present application based on the program.
  • the transceiver 1003 may include a radio frequency unit and an antenna.
  • the radio frequency unit can be used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • the antenna can be used to send and receive radio frequency signals in the form of electromagnetic waves.
  • the radio frequency unit can also be regarded as the transceiver 1003 only.
  • the communication device 1000 can include a processor 1001, a memory 1002, a transceiver 1003, and an antenna.
  • the communication device 1000 may further include an input and output device 1004, such as a touch screen, a display screen, or a keyboard, etc., which can be used to receive data input by the user and output data to the user. It should be noted that some types of communication devices may not have input and output devices.
  • the processor 1001 can baseband processing the data to be sent and output the baseband signal to the radio frequency unit, and the radio frequency unit performs radio frequency processing on the baseband signal and passes the radio frequency signal through the antenna Send in the form of electromagnetic waves.
  • the radio frequency unit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1001, and the processor 1001 converts the baseband signal into data and applies the data to the baseband signal. To process.
  • the processor 1001 may be used to obtain a first frequency domain resource and a second frequency domain resource, where the first frequency domain resource and the second frequency domain resource are independently configured, and the second frequency domain resource includes CORESET. And the initial BWP.
  • the communication module 901 may be used to receive first information, and the first information is used to schedule a downlink data channel.
  • the first information includes frequency domain resource allocation information, and the frequency domain resource allocation information is used to indicate the frequency domain resource of the downlink data channel within the range of the first frequency domain resource.
  • the first information is scrambled by G-RNTI.
  • the first frequency domain resource and/or the second frequency domain resource may be configured by a network device.
  • For the setting method of the first information please refer to the description of the method embodiment part of this application.
  • the transceiver 1003 may also be used to receive second information, the second information is in the DCI format 1_0, and the second information is scrambled by the C-RNTI.
  • the setting method of the second information please refer to the description of the method embodiment part of this application.
  • the transceiver 1003 can also be used to receive third information from the network device.
  • the third information is used to indicate that the terminal device does not support uplink HARQ feedback.
  • For the setting method of the third information please refer to the description of the method embodiment part of this application.
  • the communication device 1100 can be used as the network device involved in the foregoing method embodiment, and executes the steps performed by the network device in the foregoing method embodiment.
  • the communication device 1100 may include a communication module 1101 and a processing module 1102, and the communication module 1101 and the processing module 1102 are coupled to each other.
  • the communication module 1101 can be used to support the communication device 1100 to communicate.
  • the communication module 1101 can have a wireless communication function, for example, can communicate with other communication devices through a wireless air interface.
  • the processing module 1102 can be used to support the communication device 1100 to perform the processing actions in the above method embodiments, including but not limited to: generating information and messages sent by the communication module 1101, and/or demodulating the signals received by the communication module 1101 Decoding and so on.
  • the above communication module 1101 can be specifically used to perform actions of the network device 101 in the communication method as shown in FIG. 3.
  • the communication module 1101 may be used to perform the action of sending information, messages or signaling from the network device 101 to the terminal device, or to perform the action of receiving information, messages or signaling from the first communication device or the network device 101.
  • the above processing module 1102 can be specifically used to perform the processing actions of the network device, the third communication device, and/or the fourth communication device in the communication method as shown in FIG. 3, such as controlling the communication module 1101 to perform information, message or signaling. Receive and/or send, and perform information processing and other operations.
  • the processing module 1102 may be used to determine a first frequency domain resource and a second frequency domain resource, where the first frequency domain resource and the second frequency domain resource are independently configured, and the second frequency domain resource includes CORESET. And the initial BWP.
  • the communication module 1101 may be used to send first information to the terminal device, and the first information is used to schedule the downlink data channel of the terminal device.
  • the first information includes frequency domain resource allocation information, and the frequency domain resource allocation information is used to indicate the frequency domain resource of the downlink data channel within the range of the first frequency domain resource.
  • the first information is scrambled by G-RNTI.
  • For the setting method of the first information please refer to the description of the method embodiment part of this application.
  • the communication module 1101 can also be used to send second information to the terminal device, the second information is in the DCI format 1_0, and the second information is scrambled by the C-RNTI.
  • the setting method of the second information please refer to the description of the method embodiment part of this application.
  • the communication module 1101 may also be used to send third information to the terminal device.
  • the third information is used to indicate that the terminal device does not support uplink HARQ feedback.
  • For the setting method of the third information please refer to the description of the method embodiment part of this application.
  • the communication device provided in the embodiment of the present application may also be composed of hardware components, such as a processor, a memory, or a transceiver, to implement the functions of the network device in the present application.
  • FIG. 12 takes a base station as an example to illustrate the structure of the communication device.
  • the communication device 1200 may include a transceiver 1201, a memory 1202, and a processor 1203 to implement the functions of the network device provided in the embodiment of the present application.
  • the transceiver 1201 can be used for communication with a communication device.
  • the memory 1202 is coupled with the processor 1203, and can be used to store programs and data necessary for the communication device 1200 to implement various functions.
  • the processor 1203 is configured to support the communication device 1200 to execute the corresponding function of the network device in the foregoing method, and the function may be implemented by calling a program stored in the memory 1202.
  • the transceiver 1201 may be a wireless transceiver, which may be used to support the communication device 1200 to receive and send signaling and/or data through a wireless air interface.
  • the transceiver 1201 may also be called a transceiver unit or a communication unit.
  • the transceiver 1201 may include a radio frequency unit and one or more antennas.
  • the radio frequency unit such as a remote radio unit (RRU)
  • RRU remote radio unit
  • the one or more antennas can specifically be used to radiate and receive radio frequency signals.
  • the transceiver 1201 may only include the above radio frequency units.
  • the communication device 1200 may include a transceiver 1201, a memory 1202, a processor 1203, and an antenna.
  • the memory 1202 and the processor 1203 may be integrated or independent of each other. As shown in FIG. 12, the memory 1202 and the processor 1203 can be integrated into the control unit 1210 of the communication device 1200.
  • the control unit 1210 may include a baseband unit (BBU) of an LTE base station, and the baseband unit may also be called a digital unit (DU), or the control unit 1210 may include 5G and future wireless access Under technology, a distributed unit (DU) and/or a centralized unit (CU) in a base station.
  • the above-mentioned control unit 1210 may be composed of one or more single boards, wherein multiple single boards can jointly support a radio access network (such as an LTE network) of a single access standard, and multiple single boards can also support different access standards.
  • a radio access network such as an LTE network
  • the memory 1202 and the processor 1203 may serve one or more single boards. In other words, the memory 1202 and the processor 1203 may be separately provided on each board. It may also be that multiple boards share the same memory 1202 and processor 1203. In addition, a necessary circuit may be provided on each board, for example, the circuit may be used to realize the coupling between the memory 1202 and the processor 1203.
  • the above transceiver 1201, the processor 1203, and the memory 1202 may be connected through a bus structure and/or other connection media.
  • the processor 1203 can baseband processing the data to be sent, and output the baseband signal to the radio frequency unit.
  • the radio frequency unit performs radio frequency processing on the baseband signal and passes the radio frequency signal through the antenna. Send in the form of electromagnetic waves.
  • the radio frequency unit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1203, and the processor 1203 converts the baseband signal into data and applies the data to the baseband signal. To process.
  • the processor 1203 may be used to determine a first frequency domain resource and a second frequency domain resource, where the first frequency domain resource and the second frequency domain resource are independently configured,
  • the second frequency domain resource includes CORESET0 and the initial BWP.
  • the transceiver 1201 may be used to send first information to the terminal device, and the first information is used to schedule the downlink data channel of the terminal device.
  • the first information includes frequency domain resource allocation information, and the frequency domain resource allocation information is used to indicate the frequency domain resource of the downlink data channel within the range of the first frequency domain resource.
  • the first information is scrambled by G-RNTI.
  • For the setting method of the first information please refer to the description of the method embodiment part of this application.
  • the transceiver 1201 may also be used to send second information to the terminal device, where the second information is in the DCI format 1_0, and the second information is scrambled by the C-RNTI.
  • the second information is in the DCI format 1_0
  • the second information is scrambled by the C-RNTI.
  • the setting method of the second information please refer to the description of the method embodiment part of this application.
  • the transceiver 1201 may also be used to send third information to the terminal device.
  • the third information is used to indicate that the terminal device does not support uplink HARQ feedback.
  • For the setting method of the third information please refer to the description of the method embodiment part of this application.
  • the communication device may include a processor, and the processor may call an external transceiver and/or memory to implement the above-mentioned functions or steps or operations.
  • the communication device may also include a memory, and the processor can call and execute a program stored in the memory to implement the above-mentioned functions or steps or operations.
  • the communication device may also include a processor, that is, a transceiver, and the processor calls and executes a program stored in an external memory to implement the above-mentioned functions or steps or operations.
  • the communication device may also include a processor, a memory, and a transceiver.
  • the embodiment of the present application also provides a computer-readable storage medium on which program instructions (or computer programs, instructions) are stored.
  • program instructions or computer programs, instructions
  • the The computer executes the operations performed by the network device and/or the terminal device in any one of the foregoing method embodiments and any possible implementation of the method embodiments.
  • this application also provides a computer program product, including program instructions, which when called by a computer for execution, can make the computer implement any of the above method embodiments and method embodiments The operations performed by the network device and/or the terminal device in a possible implementation manner.
  • this application also provides a chip or chip system, which is coupled with a transceiver, and is used to implement the above method embodiment and any one of the possible implementation manners of the method embodiment. And/or the operation performed by the terminal device.
  • the chip system may include the chip and components such as memory and communication interface.
  • this application also provides a communication system that can be used to implement the above method embodiment and any one of the possible implementations of the method embodiment is executed by a network device and/or a terminal device. Operation.
  • the communication system has a structure as shown in FIG. 1.
  • the network device 101 may be used to determine a first frequency domain resource and a second frequency domain resource, where the first frequency domain resource and the second frequency domain resource are independently configured, and the first frequency domain resource is configured independently.
  • the two frequency domain resources include CORESET0 and initial BWP.
  • the terminal device can obtain the first frequency domain resource and the second frequency domain resource.
  • the network device 101 may also send first information to the terminal device, where the first information is used to schedule the downlink data channel of the terminal device.
  • the terminal device can receive the first information.
  • the setting method of the first information please refer to the introduction in the method embodiment of this application.
  • this application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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Abstract

本申请提供一种通信方法及装置，用以提高多播传输频域资源指示的灵活性。本申请中，网络设备可通过第一信息进行多播传输中数据信道的调度。其中，第一信息在第一频域资源的范围内指示数据信道的频域资源，第一频域资源是与第二频域资源独立配置的，第二频域资源包括CORESET0和初始BWP，第一信息所关联的第一频域资源不再与网络设备配置的CORESET0和/或初始BWP关联，即第一频域资源的大小不限制于CORESET0或者初始BWP，而且可以灵活配置，或者说，第一频域资源可以不参照于CORESET0和/或初始BWP。因此提高多播传输频域资源指示的灵活性。

Description

一种通信方法及装置 技术领域
本申请涉及通信领域，特别涉及一种通信方法及装置。
背景技术
在目前的移动通信技术中，物理下行控制信道(physical downlink control channel，PDCCH)可用于承载下行控制信息(downlink control information，DCI)。DCI格式(format)1_0和DCI格式1_1可用于调度数据，比如，通过DCI指示数据信道的频域资源。其中，数据信道例如物理下行共享信道(physical downlink shared channel，PDSCH)。
目前，DCI格式1_0的频域资源分配域的长度只能是与控制资源集合(control resource set，CORESET)0或初始部分带宽(bandwidth part，BWP)关联的，使得能够指示的频域资源受限。因此，目前多播传输频域资源指示的灵活性有待提高。
发明内容
本申请提供一种通信方法及装置，用以提高多播传输频域资源指示的灵活性。
第一方面，本申请提供一种通信方法。该方法可由终端设备或终端设备中的芯片执行。
根据该方法，终端设备获取第一频域资源以及第二频域资源。终端设备接收第一信息，第一信息由组无线网络临时标识(group-radio network temporary identifier，G-RNTI)。其中，第一信息在第一频域资源的范围内指示数据信道的频域资源，第一频域资源是与第二频域资源独立配置的，第二频域资源包括控制资源集合(control resource set，CORESET)0和初始部分带宽(bandwidth part，BWP)。
采用以上方法，可通过第一信息进行多播或广播数据信道的调度，其中，第一信息所关联的第一频域资源不再与网络设备配置的CORESET0和/或初始BWP关联，即第一频域资源的大小不限制于CORESET0或者初始BWP，而且可以灵活配置。这里第一频域资源的大小不限制于CORESET0或者初始BWP，也可以是指配置的第一频域资源可以不参照于CORESET0和/或初始BWP。因此提高多播传输频域资源指示的灵活性。
在一种可能的示例中，以上第一信息不包括新数据指示、冗余版本、混合自动重传请求(hybrid automatic repeat request，HARQ)进程号、下行分配索引、物理上行数据信道(physical uplink control channel，PUCCH)传输功率控制命令、PUCCH资源指示或者PDSCH到HARQ反馈定时指示中至少一个信息的信息域。此外，第一信息中可不包括DCI格式标识信息，或者说，第一信息不包括DCI格式标识信息域，DCI格式标识信息用于指示上行或下行DCI格式。其中，新数据指示的信息域在本申请中也可被称为新数据指示信息域，其他信息的信息域同理。从而第一信息中可将以上信息域的比特位，作为其他信息域中的比特位，例如用于指示下行数据信道的频域资源或用于指示其他信息，以进一步提高调度灵活性。
示例性的，终端设备还可接收第二信息，该第二信息为DCI格式1_0，且该第二信息由小区无线网络临时标识(cell-radio network temporary identifier，C-RNTI)加扰。示例性的，第二信息可包括DCI格式标识、频域资源分配、时域资源分配、虚拟资源块(virtual  resource block，VRB)到物理资源块(physicalresource block，PRB)映射(VRB-to-PRB mapping)、调制和编码方式、新数据指示、冗余版本、HARQ进程号、下行分配索引、PUCCH传输功率控制命令、PUCCH资源指示以及PDSCH到HARQ反馈定时指示。
示例性的，该第一信息的负载大小与该第二信息的负载大小相同；和/或，该第一信息的DCI格式与该第二信息的DCI格式相同。
此外，该第一信息中对应于第一信息域的比特位，在该第一信息中可用于指示该下行数据信道的频域资源，第一信息域为该第二信息中的信息域。从而进一步提高调度灵活性。比如，第一信息域在第二信息中占用第n个比特位，则在第一信息域中，第n个比特位由于指示频域资源，n为正整数。
示例性的，该第一信息域可以是DCI格式标识、新数据指示、冗余版本、HARQ进程号、下行分配索引、PUCCH传输功率控制命令、PUCCH资源指示或PDSCH到HARQ反馈定时指示中至少一个信息的信息域。
其中，若第一信息域为新数据指示、冗余版本、HARQ进程号、下行分配索引、PUCCH传输功率控制命令、PUCCH资源指示或PDSCH到HARQ反馈定时指示中至少一个信息的信息域，则终端设备还接收来自于该网络设备的第三信息。该第三信息用于指示该终端设备不支持上行HARQ反馈。
以上第一信息中的频域资源信息域的大小可与该第一频域资源相关联，或者换句话说，第一信息中的频域资源信息域的大小根据第一频域资源确定。
第二方面，本申请提供一种通信方法。该方法可由网络设备或网络设备中的芯片执行。其中，网络设备例如基站等无线接入网设备。
根据该方法，网络设备确定第一频域资源以及第二频域资源，其中，该第一频域资源以及该第二频域资源是独立配置的，该第二频域资源包括CORESET0和初始BWP。网络设备还向终端设备发送第一信息，该第一信息用于调度终端设备的下行数据信道。该第一信息中包括频域资源分配信息，该频域资源分配信息用于在该第一频域资源的范围内指示该下行数据信道的频域资源。该第一信息由G-RNTI加扰。
在一种可能的示例中，以上第一信息不包括新数据指示、冗余版本、HARQ进程号、下行分配索引、PUCCH传输功率控制命令、PUCCH资源指示或者PDSCH到HARQ反馈定时指示中至少一个信息的信息域。此外，第一信息中可不包括DCI格式标识信息，或者说，第一信息不包括DCI格式标识信息域，DCI格式标识信息用于指示上行或下行DCI格式。
示例性的，网络设备还可向终端设备发送第二信息，该第二信息为DCI格式1_0，且该第二信息由C-RNTI加扰。示例性的，第二信息可包括DCI格式标识、频域资源分配、时域资源分配、VRB到PRB映射、调制和编码方式、新数据指示、冗余版本、HARQ进程号、下行分配索引、PUCCH传输功率控制命令、PUCCH资源指示以及PDSCH到HARQ反馈定时指示。
示例性的，该第一信息的负载大小与该第二信息的负载大小相同；和/或，该第一信息的DCI格式与该第二信息的DCI格式相同。
此外，该第一信息中对应于第一信息域的比特位，在该第一信息中可用于指示该下行数据信道的频域资源，第一信息域为该第二信息中的信息域。从而进一步提高调度灵活性。比如，第一信息域在第二信息中占用第n个比特位，则在第一信息域中，第n个比特位由 于指示频域资源，n为正整数。
示例性的，该第一信息域为DCI格式标识、新数据指示、冗余版本、HARQ进程号、下行分配索引、PUCCH传输功率控制命令、PUCCH资源指示或PDSCH到HARQ反馈定时指示中至少一个信息的信息域。
其中，若第一信息域为新数据指示、冗余版本、HARQ进程号、下行分配索引、PUCCH传输功率控制命令、PUCCH资源指示或PDSCH到HARQ反馈定时指示中至少一个信息的信息域，则网络设备还向该终端设备的第三信息。该第三信息用于指示该终端设备不支持上行HARQ反馈。
以上第一信息中的频域资源信息域的大小可与该第一频域资源相关联，或者换句话说，第一信息中的频域资源信息域的大小根据第一频域资源确定。
第三方面，本申请提供了一种通信装置。该通信装置可用于实现上述第一方面或第一方面任意一种可能的设计所涉及的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现，该硬件或软件包括一个或多个与上述第一方面及其任一设计中的功能或者方法步骤或者操作相对应的模块。具体的，该通信装置可以是终端设备或终端设备中的芯片。
在一种可能的示例中，该通信装置可包括通信模块(或称通信单元)以及处理模块(或称处理单元)。其中，通信模块可用于该通信装置进行通信，处理模块可用于该通信装置实现该通信装置的处理功能。
其中，处理模块可用于获取第一频域资源以及第二频域资源，其中，该第一频域资源以及该第二频域资源是独立配置的，该第二频域资源包括CORESET0和初始BWP。通信模块可用于接收第一信息，该第一信息用于调度下行数据信道。该第一信息中包括频域资源分配信息，该频域资源分配信息用于在该第一频域资源的范围内指示该下行数据信道的频域资源。该第一信息由G-RNTI加扰。
示例性的，通信模块还可用于接收第二信息，该第二信息为DCI格式1_0，且该第二信息由C-RNTI加扰。示例性的，第二信息可包括DCI格式标识、频域资源分配、时域资源分配、VRB到PRB映射、调制和编码方式、新数据指示、冗余版本、HARQ进程号、下行分配索引、PUCCH传输功率控制命令、PUCCH资源指示以及PDSCH到HARQ反馈定时指示。
通信模块还可用于接收来自于该网络设备的第三信息。该第三信息用于指示该终端设备不支持上行HARQ反馈。
在另一种可能的示例中，该通信装置可包括处理器(或称处理芯片、处理电路)以及收发器(或称通信电路)。处理器可用于调用程序指令，以执行该通信装置的处理功能。通信模块可用于该通信装置进行通信。
其中，处理器可用于获取第一频域资源以及第二频域资源，其中，该第一频域资源以及该第二频域资源是独立配置的，该第二频域资源包括CORESET0和初始BWP。收发器可用于接收第一信息，该第一信息用于调度下行数据信道。该第一信息中包括频域资源分配信息，该频域资源分配信息用于在该第一频域资源的范围内指示该下行数据信道的频域资源。该第一信息由G-RNTI加扰。
示例性的，收发器还可用于接收第二信息，该第二信息为DCI格式1_0，且该第二信息由C-RNTI加扰。示例性的，第二信息可包括DCI格式标识、频域资源分配、时域资源 分配、VRB到PRB映射、调制和编码方式、新数据指示、冗余版本、HARQ进程号、下行分配索引、PUCCH传输功率控制命令、PUCCH资源指示以及PDSCH到HARQ反馈定时指示。
收发器还可用于接收来自于该网络设备的第三信息。该第三信息用于指示该终端设备不支持上行HARQ反馈。
第四方面，本申请提供了一种通信装置。该通信装置可用于实现上述第二方面或第二方面任意一种可能的设计所涉及的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现，该硬件或软件包括一个或多个与上述第二方面及其任一设计中的功能或者方法步骤或者操作相对应的模块。具体的，该通信装置可以是网络设备或网络设备中的芯片。
在一种可能的示例中，该通信装置可包括通信模块(或称通信单元)以及处理模块(或称处理单元)。通信模块可用于该通信装置进行通信，处理模块可用于该通信装置实现该通信装置的处理功能。
其中，处理模块可用于确定第一频域资源以及第二频域资源，其中，该第一频域资源以及该第二频域资源是独立配置的，该第二频域资源包括CORESET0和初始BWP。通信模块可用于向终端设备发送第一信息，该第一信息用于调度终端设备的下行数据信道。该第一信息中包括频域资源分配信息，该频域资源分配信息用于在该第一频域资源的范围内指示该下行数据信道的频域资源。该第一信息由G-RNTI加扰。
示例性的，通信模块还可用于向终端设备发送第二信息，该第二信息为DCI格式1_0，且该第二信息由C-RNTI加扰。示例性的，第二信息可包括DCI格式标识、频域资源分配、时域资源分配、VRB到PRB映射、调制和编码方式、新数据指示、冗余版本、HARQ进程号、下行分配索引、PUCCH传输功率控制命令、PUCCH资源指示以及PDSCH到HARQ反馈定时指示。
通信模块还可用于向该终端设备发送第三信息。该第三信息用于指示该终端设备不支持上行HARQ反馈。
在另一种可能的示例中，该通信装置可包括处理器(或称处理芯片、处理电路)以及收发器(或称通信电路)。处理器可用于调用程序指令，以执行该通信装置的处理功能。通信模块可用于该通信装置进行通信。
其中，处理器可用于确定第一频域资源以及第二频域资源，其中，该第一频域资源以及该第二频域资源是独立配置的，该第二频域资源包括CORESET0和初始BWP。收发器可用于向终端设备发送第一信息，该第一信息用于调度终端设备的下行数据信道。该第一信息中包括频域资源分配信息，该频域资源分配信息用于在该第一频域资源的范围内指示该下行数据信道的频域资源。该第一信息由G-RNTI加扰。
示例性的，收发器还可用于向终端设备发送第二信息，该第二信息为DCI格式1_0，且该第二信息由C-RNTI加扰。示例性的，第二信息可包括DCI格式标识、频域资源分配、时域资源分配、VRB到PRB映射、调制和编码方式、新数据指示、冗余版本、HARQ进程号、下行分配索引、PUCCH传输功率控制命令、PUCCH资源指示以及PDSCH到HARQ反馈定时指示。
收发器还可用于向该终端设备发送第三信息。该第三信息用于指示该终端设备不支持上行HARQ反馈。
第五方面，本申请提供一种通信系统。示例性的，该通信系统可包括用于实现上述第一方面或第一方面任意一种可能的设计的通信装置，以及包括用于实现上述第二方面或第二方面任意一种可能的设计的通信装置。具体的，该通信系统可包括第三方面所述通信装置和/或第四方面所述通信装置。
第六方面，本申请提供了一种计算机存储介质，包括程序指令，当该程序指令在计算机上运用时，使得计算机执行上述第一方面或第一方面任意一种可能的设计，或上述第二方面或第二方面任意一种可能的设计中的方法。
第七方面，本申请实施例提供一种计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面任意一种可能的设计，或上述第二方面或第二方面任意一种可能的设计中的方法。
第八方面，本申请实施例提供一种芯片系统，该芯片系统可以包括处理器，还可以包括存储器(或者该系统芯片与储存器耦合)，该芯片系统执行储存器中的程序指令，以执行上述第一方面或第一方面任意一种可能的设计，或上述第二方面或第二方面任意一种可能的设计中的方法。其中，“耦合”是指两个部件彼此直接或间接地结合，如耦合可以是指两个部件之间电连接。
以上第二至第八方面所示方法的有益效果，可参照第一方面中相应方法的有益效果，这里为节省篇幅不再具体展开。
附图说明
图1为本申请实施例提供的一种无线通信系统的架构示意图；
图2为本申请实施例提供的一种DCI格式1_0的信息域分布示意图；
图3为本申请实施例提供的一种通信方法的流程示意图；
图4为本申请实施例提供的一种第一频域资源和第二频域资源相互关系示意图；
图5为本申请实施例提供的一种第一信息的信息域分布示意图；
图6为本申请实施例提供的另一种第一信息的信息域分布示意图；
图7为本申请实施例提供的另一种第一信息的信息域分布示意图；
图8为本申请实施例提供的另一种第一信息的信息域分布示意图；
图9为本申请实施例提供的一种通信装置的结构示意图；
图10为本申请实施例提供的另一种通信装置的结构示意图；
图11为本申请实施例提供的另一种通信装置的结构示意图；
图12为本申请实施例提供的另一种通信装置的结构示意图。
具体实施方式
为了提高多播传输频域资源指示的灵活性，本申请提供一种通信方法。下面将结合附图对本申请作进一步地详细描述。应理解，下面所介绍的方法实施例中的具体操作方法也可以应用于装置实施例或系统实施例中。
如图1所示，本申请实施例提供的通信方法可应用于无线通信系统100。
无线通信系统100可包括网络设备(或称接入网设备)101、核心网设备102和至少一个终端设备(例如图1所示的终端设备103和终端设备104)。终端设备可通过无线的方 式与网络设备101相连，无线接入网设备通过无线或有线方式与核心网设备102连接。核心网设备102与网络设备101可以是独立的不同的物理设备。此外，也可以将核心网设备的功能与无线接入网设备的逻辑功能集成在同一个物理设备上，还可以是在一个物理设备上集成了部分核心网设备的功能和部分的无线接入网设备的功能。后续为方便说明，可将接入网设备称为网络设备。
终端设备可以是固定位置的，也可以是可移动的。应理解，图1只是一种无线通信系统架构的示意图，本申请提供的通信系统中还可以包括图1中未示出的其它网络设备，如还可以包括无线中继设备和无线回传设备。本申请的实施例对该移动通信系统中包括的核心网设备、无线接入网设备和终端设备的数量不做限定。
应理解，以上无线通信系统100既可适用于低频场景(sub 6GHz)，也可适用于高频场景(above6GHz)。无线通信系统100的应用场景包括但不限于长期演进(long term evolution，LTE)系统第五代(5th generation，5G)移动通信系统中的新无线(new radio，NR)系统以及未来的移动通信系统等。
如图1所示，网络设备101可以是接入网设备(或称接入网站点)。其中，接入网设备是指有提供网络接入功能的设备，如无线接入网(radio access network，RAN)基站等等。网络设备101具体可包括基站(base station，BS)，或包括基站以及用于控制基站的无线资源管理设备等。该网络设备101还可包括中继站(中继设备)、接入点以及未来5G网络中的基站、未来演进的PLMN网络中的基站或者NR基站等。网络设备101可以是可穿戴设备或车载设备。网络设备101也可以是具有通信模块的芯片。
比如，网络设备101包括但不限于：5G中的下一代基站(g nodeB，gNB)、LTE系统中的演进型节点B(evolved node B，eNB)、无线网络控制器(radio network controller，RNC)、CRAN系统下的无线控制器、基站控制器(base station controller，BSC)、家庭基站(例如，home evolved nodeB，或home node B，HNB)、基带单元(baseBand unit，BBU)、传输接收点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)或移动交换中心等。网络设备101还可包括未来6G或更新的移动通信系统中的基站。
核心网设备102部署于核心网侧，主要负责执行核心网的功能。核心网设备102可以是4G、5G或未来无线通信系统中的核心网网元或核心网网元中的芯片。
以上所示终端设备可以是用户设备(user equipment，UE)、终端(terminal)、接入终端、终端单元、终端站、移动台(mobile station，MS)、远方站、远程终端、移动终端(mobile terminal)、无线通信设备、终端代理或终端设备等。该终端设备可具备无线收发功能，其能够与一个或多个通信系统的一个或多个网络设备进行通信(如无线通信)，并接受网络设备提供的网络服务，这里的网络设备包括但不限于图示网络设备101。
其中，终端设备可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、未来5G网络中的终端装置或者未来演进的PLMN网络中的终端装置等。
另外，终端设备可以部署在陆地上，包括室内或室外、手持或车载；终端设备也可以部署在水面上(如轮船等)；终端设备还可以部署在空中(例如飞机、气球和卫星上等)。所述终端设备具体可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、 虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。终端设备也可以是具有通信模块的通信芯片，也可以是具有通信功能的车辆，或者车载设备(如车载通信装置，车载通信芯片)等。
目前在NR中，终端设备可在网络设备101配置的部分带宽(bandwidth part，BWP)内收发信息。终端设备在一个服务小区(serving cell)上可以通过高层参数:BWP下行(BWP-Downlink)或者高层参数：初始下行BWP(initial downlinkBWP)被配置最多4个下行BWP。通常，对于一个终端设备，同一时刻只能有一个BWP是激活状态，被激活的BWP称为激活BWP(active BWP)，终端设备只能在active BWP中收发信息。
具体的，下行BWP的类型包括初始BWP(initial BWP)、专用BWP(dedicated BWP)和默认BWP(default BWP)。其中，初始BWP是终端设备初始接入阶段配置的BWP，初始BWP是由系统消息配置的，因此对于同一个小区内的终端设备，初始BWP是相同的。下行初始BWP用于传输剩余最小系统信息(remaining minimum system information，RMSI)、msg2和msg4等信令的PDSCH。专用BWP为UE在无线资源控制(radio resource control，RRC)连接态时配置的BWP，只能用于该终端设备进行信息的收发。
应理解，本申请中收发信息，包括但不限于信令和数据的收发。
此外，每个下行BWP中至少包含一个具有专用搜索空间的控制资源集合(control resource set，CORESET)。
每个CORESET在频域上可包括多个物理资源块，以及，CORESET在时域上包括1～3个OFDM符号，这些OFDM符号可位于时隙内的任意位置。CORESET占用的时频资源由高层参数半静态配置。在频域上，CORESET的配置支持连续和离散的频域资源配置，且配置的CORESET不超出激活BWP的频域范围。CORESET0的资源块(resource block，RB)数是由系统消息指示的，因此对于同一个小区内的终端设备，CORESET0是相同的。
当图1所示终端设备的数量为多个时，网络设备101可通过多播传输向多个终端设备进行传输。应理解，多播传输包括但不限于组播传输和/或广播传输。在进行多播传输时，网络设备101向小区中的多个终端设备(可能是小区内全部或部分的终端设备)发送一个下行控制信息，以指示这些终端设备在相同的频域资源上接收PDSCH。相应地，终端设备可在激活BWP对应的频域资源内接收和发送信息，而每个终端设备的专用BWP是独立配置的，所以需要在所有目标终端公共的频域资源上发送多播传输。
在一种实现方式中，终端设备只能在公共搜索空间中检测一种DCI格式，即DCI格式1_0。DCI格式1_0在本申请中可表示DCI格式为1_0的DCI。应理解，DCI格式1_0可被多种无线网络临时标识(radio network temporary identity，RNTI)加扰，表示不同的信息。作为一个实施例，不同RNTI加扰的DCI格式1_0承载的比特数量通常是相同的。
如图2所示，当DCI格式1_0的循环冗余校验(cyclic redundancy check，CRC)由小区无线网络临时标识(cell-radio network temporary identifier，C-RNTI)加扰时，一种示例性的DCI格式1_0的信息域的分布如图2所示。应理解，图2所示的信息域为线性排列，而非阵列排列。应理解图2仅仅是示意图，在具体的DCI传输过程中，接收方根据预定位置或排列接收/获取DCI中各个域信息。
可见，DCI格式1_0可包括下信息域：
DCI格式标识(identifier for DCI formats)信息域，用于指示DCI格式。例如，DCI格式标识信息域包括一个比特位，若该比特位被置为1则用于标识下行DCI格式，若该比特位被置为0，则用于标识上行DCI格式。
频域资源分配(frequency domain resource assignment，FDRA)信息域，用于指示数据信道传输占用的频域资源，如指示频域资源的起始位置(如起始RB)和宽度(如频域资源的RB数)。
时域资源分配(time domain resource assignment，TDRA)信息域，用于指示数据信道传输占用的时域资源。
虚拟资源块(virtual resource block，VRB)到物理资源块(physicalresource block，PRB)映射(VRB-to-PRB mapping)信息域，用于指示VRB到PRB的映射是交织还是非交织的。
调制和编码方式(modulation and coding scheme，MCS)信息域，用于指示数据信道采用的调制阶数和码率。
新数据指示(new data indicator，NDI)信息域，用于标识初传(或称首次传输)。重传时该信息域的比特不反转，初传时翻转。例如，一个数据包的初传NDI信息域的比特位置1，重传3次的DCI中NDI信息域的比特位都是1；若下次传输的数据为初传数据包，则DCI中的NDI信息域的比特位翻转为0。
冗余版本(redundancy version，RV)信息域，用于指示调度的数据信道的RV。例如，将编码器生成的冗余比特分成若干组，每个RV定义一个传输开始点，首次传送和各次HARQ重传分别使用不同的RV，以实现冗余比特的逐步积累，完成增量冗余HARQ操作。
HARQ进程号(HARQ process number，HPN)信息域，用于指示数据的HARQ进程号。
下行分配索引(downlink assignment index)信息域，用于指示动态码本构造时，在一个码本中反馈的数据信道的编号。
PUCCH的传输功率控制(transmission power control，TPC)命令(TPC command for scheduled PUCCH)信息域。该DCI调度的数据信道需要发送HARQ反馈信息时，该信息域用于调整承载该HARQ反馈信息的PUCCH的功率。
PUCCH资源指示(PUCCH resource indicator)信息域。该DCI调度的数据信道需要发送反馈信息HARQ时，该信息域用于指示承载该反馈信息HARQ的PUCCH的资源。
PDSCH到HARQ反馈定时指示(PDSCH-to-HARQ_feedback timing indicator)信息域(可被称为K1信息域)。该DCI调度的数据信道需要发送反馈信息HARQ时，该信息域用于指示该DCI调度的数据信道所在的时隙，到承载PDSCH对应的HARQ的信道所在时隙的偏移(以下可称为PDSCH到HARQ的反馈定时)。
应理解，本申请中，信息域可以是指信息域包含的比特位；或者信息域可以是指信息域对应的信息，如信息域包含的比特位的取值和/或比特位的取值所表示的信息。例如，DCI格式标识信息域可以是DCI格式标识信息域对应的比特位，或者DCI格式标识信息域可以是该比特位的取值和/或该比特位取值所表示的信息。
以上图2所示结构仅仅是示例性的说明，不应理解为本申请所示的DCI以图2所示结构为限。比如，当DCI格式1_0的CRC由系统消息-无线网络临时标识(system information-radio network temporary identifier，SI-RNTI)加扰时，DCI格式1_0可包括频域资源分配 信息域、时域资源分配信息域、VRB到PRB映射信息域、调制和编码方式信息域、系统信息指示信息域(system information indicator)以及保留(reserved)比特(或称保留比特位)。这里也可以是由其他标识做加扰。此外，图2中所示信息域的大小并不代表信息域在DCI中的实际长度(即信息域所包含比特位的数量)。
以上DCI格式1_0的频域资源分配信息域的大小(即频域资源分配信息域包含的比特位的数量)根据CORESET0或者初始BWP对应的频域宽度确定，意味着根据现有技术进行多播传输的频域资源只能为CORESET0或初始BWP，因此影响多播传输频域资源调度的灵活性。
基于图1所示架构，本申请实施例提供的通信方法可由网络设备101以及至少一个终端设备执行，以提高多播传输下频域资源调度的灵活性。其中，终端设备可包括终端设备103、终端104和/或图1未示出的其他终端设备。该方法可包括图3所示的以下步骤：
S101：终端设备获取第一频域资源。
具体地，终端设备可以通过系统消息或者高层参数获取第一频域资源的起始RB和频域宽度。
在一种具体的示例中，终端设备可通过系统消息或RRC信令获取第一频域资源，可选的，该频域资源为第一BWP。此外，第一频域资源还可通过DCI动态指示。具体的，系统消息、RRC信令或者DCI可用于指示第一BWP的索引(如BWP标识)、第一频域资源的起始位置、第一频域资源的频域宽度或者第一频域资源的参数集(numerology)中的至少一项。其中，第一频域资源的参数集包括子载波间隔(subcarrier spacing，SCS)和循环前缀(cyclic prefix,CP)。
在另外的示例中，第一频域资源为第三频域资源的子集或真子集。第三频域资源为激活的BWP。终端设备可通过系统消息或RRC信令获取第三频域资源。
一个实施例中，终端设备还获取第二频域资源。第一频域资源以及第二频域资源是独立配置的。或者说，第一频域资源不依赖于第二频域资源的配置。
在一种可能的示例中，第一频域资源以及第二频域资源是独立配置的，可以指第一频域资源以及第二频域资源采用不同的信令配置，或者，是指第一频域资源以及第二频域资源由同一信令中的不同字段配置，进一步的一个可选的实施例中，不同的信令之间的配置是不互相参考的，或者不同的字段之间是不互相参考的。
例如，第二频域资源可由网络设备101通过系统消息配置，第一频域资源可由网络设备101通过高层信令配置。又例如，第一频域资源是由如第一RRC信令配置的，第二频域资源是由第二RRC信令配置的。其中，第二频域资源的频域宽度为CORESET0对应的PRB数，CORESET0是由系统消息配置的。或者，第二频域资源的频域宽度为初始BWP，初始BWP为系统消息或者高层参数配置的。再或者，第二频域资源的频域宽度为预定义的BWP，或者预定义的频域宽度。
另一种可能的示例中，第一频域资源以及第二频域资源是独立配置的，可以指第一频域资源的配置不参照第二频域资源，比如，第一频域资源的频域宽度与第二频域资源的频域宽度无关，和/或，第一频域资源的起始位置与第二频域资源的起始位置无关。在实施中，用于配置第一频域资源的第一参数，可以不参照于第二参数确定，第二参数用于配置第二频域资源。其中，第一参数可以是用于确定第一频域资源的直接参数，比如，第一参数包括第一频域资源；第一参数还可以是用于确定第一频域资源的间接参数，比如，第一参数 包括资源指示值(resource indication value，RIV)和/或其他用于配置频域资源的参数。同理，第二参数可以是用于确定第二频域资源的直接参数或间接参数。
这里通过具体的示例进行说明。若第二频域资源包括CORESET0，其中，CORESET0是根据参数A确定的，则第一信息可包括参数B，该参数B不参照于参数A确定。若第二频域资源包括初始BWP，其中，初始BWP是根据参数C确定的，则第一信息可包括参数B，该参数B不参照于参数C确定。若第二频域资源包括CORESET0以及初始BWP，其中，CORESET0是根据参数A确定的，初始BWP是根据参数C确定的，则第一信息可包括参数B，该参数B不参照于参数A确定，且该参数B不参照于参数C确定。
下面通过举例的方式，说明第一频域资源与第二频域资源可能的配置方式。
在一种可能的配置方式中，第一频域资源的起始位置和第二频域资源的起始位置是互相独立，互不参照的，并且，第一频域资源的频域宽度和第二频域资源的频域宽度是互相独立，互不参照的。
例如，图4中如编号(a)和(b)所示的第一频域资源的频域起始位置为f1，第二频域资源的起始位置为f2，且f1不等于f2，f1不参照于f2确定；第一频域资源的频域宽度为F1，第二频域资源的频域宽度为F2，且F1不等于F2，F1不参照于F 2确定。
另外的可能的配置方式中，第一频域资源的起始位置和第二频域资源的起始位置是互相独立，互不参照的。此外，第一频域资源的频域宽度可参照于第二频域资源的频域宽度确定，比如根据第二频域资源的频域宽度设置第一频域资源的频域宽度，如设置第一频域资源的宽度等于第二频域资源的频域宽度，或者第一频域资源的频域宽度与第二频域资源的频域宽度存在倍数关系等等。
例如，图4中编号(c)和(d)所示的第一频域资源的频域起始位置为f1，第二频域资源的起始位置为f2，且f1不等于f2，f1不参照于f2确定；第一频域资源的频域宽度设置为与第二频域资源的频域宽度相同，例如均为F0。
另外的可能的配置方式中，第一频域资源的频域宽度和第二频域资源的频域宽度是互相独立，互不参照的。此外，第一频域资源的起始位置可参照于第二频域资源的起始位置确定，比如根据第二频域资源的起始位置设置第一频域资源的起始位置，如设置第一频域资源的起始位置等于第二频域资源的起始位置，或者设置第一频域资源的频域宽度与第二频域资源的频域宽度存在倍数关系等等。
例如，图4中如编号(e)所示的第一频域资源的频域宽度为F1，第二频域资源的频域宽度为F2，且F1不等于F2，F1不参照于F2确定；第一频域资源的起始位置设置为与第二频域资源的起始位置相同，均为f0。
此外，第一频域资源的起始位置和第二频域资源的起始位置可以相同，第一频域资源的频域宽度和第二频域资源的频域宽度可以相同，其中，第一频域资源的起始位置不是参照第二频域资源的起始位置确定的，第一频域资源的频域宽度不是参照第二频域资源的频域宽度确定的。如图4中编号(f)所示的第一频域资源的频域起始位置以及第二频域资源的起始位置均为f0；第一频域资源的频域宽度以及第二频域资源的频域宽度均为F0。
另外的示例中，第一频域资源以及第二频域资源是独立配置的，可以指网络设备针对第一频域配置的频域资源的参数足够确定出第一频域资源，和/或，网络设备针对第二频域配置的频域资源的参数足够确定出第二频域资源。
应理解，以上独立配置第一频域资源与第二频域资源的方式只是举例说明，根据本领 域技术人员的一般理解，还可将以上方式中的任意方式结合实施，也就是说，第一频域资源与第二频域资源通过独立的信令配置的，和/或第一频域资源与第二频域资源互不参考，和/或，给第二频域配置的频域资源的参数足够确定出第二频域资源。
进一步地，该第二频域资源可以包括CORESET0和初始BWP。其中，CORESET0和/或初始BWP可通过系统消息或RRC信令配置。CORESET0表示索引号为0的控制资源集合。具体地，UE通过主信息块(master information block,MIB)确定用于类型0PDCCH公共搜索空间集合的控制资源集合。通过系统消息pdcch-ConfigSIB1或者高层参数PDCCH-ConfigCommon中的参数controlResourceSetZero获取类型0PDCCH公共搜索空间集合的控制资源集合连续资源块的数目，即所述CORESET0对应频域宽度。UE通过高层参数initialDownlinkBWP获取初始下行BWP。如果UE没有获取高层参数initialDownlinkBWP，则第二频域资源的频域宽度由CORESET0确定。或者说，如果UE没有获取高层参数initialDownlinkBWP，则初始下行BWP定义为一组连续的PRB，起始PRB为类型0PDCCH公共搜索空间集合的控制资源集合中索引号最小的PRB，结束PRB为类型0PDCCH公共搜索空间集合的控制资源集合中索引号最大的PRB。
应理解，第一频域资源的起始位置与第二频域资源的起始位置可以相同或不同。此外，第一频域资源的频域宽度与第二频域资源的频域宽度可以相同或不同。其中，第一频域资源的起始位置对应的RB的索引号可大于第二频域资源的起始位置对应的RB的索引号，或者，第一频域资源的起始位置对应的RB的索引号可小于第二频域资源的起始位置对应的RB的索引号。此外，第一频域资源的频域宽度可大于第二频域资源的频域宽度，或者，第一频域资源的频域宽度可小于第二频域资源的频域宽度。
举例来说，第一频域资源与第二频域资源的关系如图4中编号(a)、(b)、(c)、(d)、(e)或(f)中任一所示。其中，如编号(a)和(b)所示的第一频域资源的频域起始位置为f1，第二频域资源的起始位置为f2，且f1不等于f2；第一频域资源的频域宽度为F1，第二频域资源的频域宽度为F2，且F1不等于F2。其中，编号(a)所示的第一频域资源与第二频域资源存在频域上的重合，编号(b)所示的第一频域资源与第二频域资源不存在频域上的重合。如编号(c)和(d)所示的第一频域资源的频域起始位置为f1，第二频域资源的起始位置为f2，且f1不等于f2；第一频域资源的频域宽度以及第二频域资源的频域宽度均为F0。其中，编号(c)所示的第一频域资源与第二频域资源存在频域上的重合，编号(d)所示的第一频域资源与第二频域资源不存在频域上的重合。如编号(e)所示的第一频域资源的频域起始位置以及第二频域资源的起始位置均为f0；第一频域资源的频域宽度为F1，第二频域资源的频域宽度为F2，且F1不等于F2。如编号(f)所示的第一频域资源的频域起始位置以及第二频域资源的起始位置均为f0；第一频域资源的频域宽度以及第二频域资源的频域宽度均为F0。
S102：网络设备向终端设备发送第一信息，该第一信息用于调度下行数据信道。
其中，该第一信息中包括频域资源分配信息，可选的，该频域资源分配信息用于在第一频域资源的范围内指示该下行数据信道的频域资源。作为一个实施例，该频域资源分配信息可以是一个资源指示值(以下公式中通过RIV表示)，该资源指示值可以与PDSCH起始RB和连续的RB数满足关联关系。
如果PDSCH起始RB(以下公式中通过RBstart表示)与连续的RB数(以下公式中通过LRBs表示)满足以下公式：
Figure PCTCN2020079063-appb-000001
则资源指示值满足以下公式：
Figure PCTCN2020079063-appb-000002
否则，如果PDSCH起始RB与续的RB数不满足公式一，则RIV满足以下公式：
Figure PCTCN2020079063-appb-000003
其中，L RBs≥1且不超过
Figure PCTCN2020079063-appb-000004
Figure PCTCN2020079063-appb-000005
为第一时域资源的资源块数量。
以上，PDSCH起始RB可表示为PDSCH对应的最小RB与第一频域资源的最小RB之间的偏移。
示例性的，该第一信息由G-RNTI加扰，也就是说，该第一信息发给包括终端设备在内的一个或多个终端设备，且该第一信息调度的数据信道通过多播或广播方式传输。应理解，上述频域资源分配信息也可以是通过显式的方式指示频域资源，也可以是通过某些参数与频域的关联关系隐式指示；在某些实施例中，分配的频域资源不限于、或不受限于上述第一频域资源的范围。可以是终端设备直接获取频域资源的信息后直接在后续通信中使用，也可以是在终端设备获取第一信息后，再根据预设规则，配合获取的第一频域资源确定最终在后续通信过程中采用的频域资源。
相应地，终端设备接收该第一信息。
采用以上方法，可通过第一信息进行多播或广播数据信道的调度，其中，第一信息所关联的第一频域资源不再与网络设备101配置的CORESET0和/或初始BWP关联，即第一频域资源的大小不限制于CORESET0或者初始BWP，而且可以灵活配置。这里第一频域资源的大小不限制于CORESET0或者初始BWP，也可以是指配置的第一频域资源可以不参照于CORESET0和/或初始BWP。因此提高多播传输频域资源指示的灵活性。
下面将给出一个或多个第一信息的具体的示例。应理解，下述第一信息的设计可以和上述实施例结合，也可以单独作为多个实施例应用。示例性的，该第一信息为DCI。
示例性的，该第一信息中不包含第一信息域。第一信息域可包括DCI格式标识信息域。此外，第一信息域可包括新数据指示信息域、冗余版本信息域、HARQ进程号信息域、下行分配索引信息域、PUCCH传输功率控制命令信息域、PUCCH资源指示信息域或者PDSCH到HARQ反馈定时指示信息域中的至少一个信息域。一个实施例中，第一信息域还可以包括虚拟资源块到物理资源块映射信息域，调制和编码方式信息域中的至少一个信息域。因此，第一信息中可将以上第一信息域对应的比特位，作为其他信息域中的比特位，例如用于指示下行数据信道的频域资源，以进一步提高频域资源指示的灵活性。
应理解，第一信息中第一信息域对应的比特位，或称为第一信息中对应于第一信息域的比特位，在本申请中是指第一信息中的，序号与第二信息中第一信息域占用的比特位的序号相同的比特位。例如，第二信息中，第n个比特位是第一信息域占用的比特位，则在第一信息中，第n个比特位可被视为第一信息中第一信息域对应的比特位，n为正整数。
在实施中，可选的，网络设备101还可向终端设备发送第二信息。其中，该第二信息可由C-RNTI或其他的RNTI加扰。示例性的，第二信息的信息域的可包括如图2所示的DCI格式标识信息域、频域资源分配信息域、时域资源分配信息域、VRB到PRB映射信息域、调制和编码方式信息域、新数据指示信息域、冗余版本信息域、HARQ进程号信息域、下行分配索引信息域、PUCCH传输功率控制命令信息域、PUCCH资源指示信息域以及PDSCH到HARQ反馈定时指示信息域。其中，第二信息的频域资源分配信息域的大小 根据CORESET0或初始BWP确定。
例如，第二信息的频域资源分配信息域的大小l满足以下公式：
Figure PCTCN2020079063-appb-000006
其中，
Figure PCTCN2020079063-appb-000007
表示向上取整。
Figure PCTCN2020079063-appb-000008
表示CORESET0的宽度或者初始BWP的宽度。示例性的，CORESET0的宽度为24、48或96个RB。
应理解，该第二信息可以是DCI格式1_0。一个实施例中，该第二信息的比特数与第一信息相同。
如图5所示，一个实施例中，第一信息由频域资源分配信息域、时域资源分配信息域、VRB到PRB映射信息域、调制和编码方式信息域以及保留比特位组成。又一个实施例中，本申请中的一种第一信息的信息域可由频域资源分配信息域、时域资源分配信息域、VRB到PRB映射信息域、调制和编码方式信息域组成。
进一步的，第二信息中由第一信息域占用的比特位，在第一信息中用于指示频域资源分配，或者说该比特位在第一信息中为FDRA信息域对应的比特域，如图5所示。或者再换句话说，第二信息中由第一信息域占用的比特位，包含在FDRA信息域中，从而增加了FDRA信息域的大小，如图6所示，或者说增加了FDRA信息域包含的比特位的数量，从而实现更加灵活的频域资源指示。其中，第一信息域可包括DCI格式标识信息域、新数据指示信息域、冗余版本信息域、HARQ进程号信息域、下行分配索引信息域、PUCCH传输功率控制命令信息域、PUCCH资源指示信息域或者PDSCH到HARQ反馈定时指示信息域中的至少一个信息域。
例如，第二信息中的第1个比特位为DCI格式标识信息域占用的比特位，在第一信息中不存在DCI格式标识信息域，第1个比特位用于指示频域资源分配。
再例如，第二信息中的第m个比特位为新数据指示信息域，在第一信息中不存在新数据指示信息域，第m个比特位用于指示频域资源分配。其中m为正整数。
又例如，第二信息中的第a～b比特位为下行分配索信息域，在第一信息中不存在下行分配索信息域，第a～b比特位用于指示频域资源分配。其中a，b为正整数且a≤b。
可选的，图5所示的第一信息的负载大小，与第二信息的负载大小相同。示例性的，图5所示第一信息的负载大小以及第二信息的负载大小均为l+28比特。其中，l表示第二信息的频域资源分配信息域的比特数，是根据CORESET0和初始BWP的宽度或者说连续的资源块数量确定频域资源分配信息域的比特数，如公式四所示。28表示第二信息中除频域资源分配信息域之外的，其他所有信息域的比特数之和。为了保证第一信息的负载大小与第二信息负载大小相同，则如图6所示，需要在第一信息中添加若干个保留比特位，此时第一信息的信息域可包括FDRA信息域、TDRA信息域、VRB到PRB映射信息域以及保留比特位。
示例性的，如图6所示的第一信息中保留比特位的大小L 0满足如下公式五：
Figure PCTCN2020079063-appb-000009
Figure PCTCN2020079063-appb-000010
表示第一信息中除频域资源分配信息域外的其他所有信息域的比特数之和。
例如，
Figure PCTCN2020079063-appb-000011
包括但不限于：L 1为时域资源分配信息域占用的比特位的数量，例如，L 1＝4bit；L 2为调制编码方式信息域占用的比特位的数量，例如，L 2＝5bit；L 3为VRB到PRB映射信息域占用的比特位的数量，例如，L 3＝1bit。
再例如，
Figure PCTCN2020079063-appb-000012
为包括但不限于：L 1时域资源分配信息域占用的比特位的数量，例如， L 1＝4bit；L 2为调制编码方式信息域占用的比特位的数量，例如，L 2＝5bit；L 3为VRB到PRB映射信息域占用的比特位的数量，例如，L 3＝1bit；L 4为新数据指示信息域占用的比特位的数量，例如，L 4＝1。L 5为冗余版本信息域占用的比特位的数量，例如，L 5＝2。L 6为HARQ进程号信息域占用的比特位的数量，例如，L 6＝4。L 7为下行分配索引信息域占用的比特位的数量，例如，L 7＝2。L 8为PUCCH传输功率控制命令信息域占用的比特位的数量，例如，L 8＝2。L 9为PUCCH资源指示信息域占用的比特位的数量，例如，L 9＝3。L 10为PDSCH到HARQ反馈定时指示信息域占用的比特位的数量，例如，L 10＝3。
可选的保留比特L 0可以等于0。
可选的，如图5和/或图6所示第一信息的频域资源分配信息域的大小与第一频域资源关联。或者换句话说，第一信息的频域资源分配信息域的大小根据第一频域资源确定。例如，第一信息的频域资源分配信息域的大小根据第一频域资源的宽度(如第一频域资源的RB数)确定。频域资源分配信息域包含L个比特位满足如下公式六：
Figure PCTCN2020079063-appb-000013
其中，
Figure PCTCN2020079063-appb-000014
表示向上取整。
Figure PCTCN2020079063-appb-000015
表示第一频域资源的宽度。
可选的，以上图5和/或图6所示的第一信息的格式可以是DCI格式1_0，即第一信息可与第二信息的DCI格式相同。
在接收到如图5和/或图6所示的第一信息后，终端设备可根据第一信息的调度进行数据传输。
应理解，如图5和/或图6所示的第一信息可应用于终端设备不支持上行HARQ反馈的场景。例如，网络设备101可向终端设备发送第三信息，该第三信息用于指示终端设备当前传输不支持上行HARQ反馈。或者，可默认终端设备支持上行HARQ反馈。其中，第三信息可以为动态信令，如DCI信令。或者，第三信息可以为高层信令，包括无线资源控制RRC信令，或者媒体访问控制(media access control，MAC)控制单元(control element，CE)。
举例来说，终端设备接收来自网络设备101的第三信息。该第三信息用于指示不支持上行HARQ反馈，则第一信息可包括频域资源分配信息域、时域资源分配信息域、VRB到PRB映射信息域、调制和编码方式信息域。且第一信息中不包含新数据指示信息域、冗余版本信息域、HARQ进程号信息域、下行分配索引信息域、PUCCH传输功率控制命令信息域、PUCCH资源指示信息域或者PDSCH到HARQ反馈定时指示信息域中的至少一个信息域。第二信息中的新数据指示信息域、冗余版本信息域、HARQ进程号信息域、下行分配索引信息域、PUCCH传输功率控制命令信息域、PUCCH资源指示信息域或者PDSCH到HARQ反馈定时指示信息域中的至少一个信息域对应的比特位在第一信息中用于指示频域资源分配。此时第一信息可具备图5和/或图6所示结构。
此外，若终端设备接收的第四信息用于指示支持上行HARQ反馈，则第一信息可包括频域资源分配信息域、时域资源分配信息域、VRB到PRB映射信息域、调制和编码方式信息域、新数据指示信息域、冗余版本信息域、HARQ进程号信息域、下行分配索引信息域、PUCCH传输功率控制命令信息域、PUCCH资源指示信息域以及PDSCH到HARQ反馈定时指示信息域。或者说，第一信息包含新数据指示信息域、冗余版本信息域、HARQ进程号信息域、下行分配索引信息域、PUCCH传输功率控制命令信息域、PUCCH资源指示信息域以及PDSCH到HARQ反馈定时指示信息域中的至少一个信息域。或者换句话说， 若终端设备接收的第四信息用于指示支持上行HARQ反馈，则第一信息中不包含DCI格式标识信息域。其中，第四信息可以为动态信令，如DCI信令。或者，第四信息可以为高层信令，包括无线资源控制RRC信令，或者MAC CE。
一种可行的示例中，第一信息中对应于第一信息域的比特位可用于指示频域资源分配。例如，第二信息中的第n个比特位是第一信息域占用的比特位，则在第一信息中，第n个比特位是第一信息中对应于第一信息域的比特位，可用于指示频域资源分配。具体的，第二信息中的第n个比特位包含在DCI格式标识信息域、新数据指示信息域、冗余版本信息域、HARQ进程号信息域、下行分配索引信息域、PUCCH的传输功率控制信息域、PUCCH资源指示信息域或者PDSCH到HARQ反馈定时指示信息域，则第一信息中的第n个比特位可用于指示频域资源分配，或者说，第一信息中的第n个比特位包含在频域资源分配信息域中，n为正整数。比如，在第二信息的信息域中，第1个比特位用于指示DCI格式，即第二信息的信息域中，DCI格式标识信息域对应的比特位包括第二信息的信息域中的第1个比特位，在第一信息中，第1个比特位由于频域资源分配。
在另一种可能的示例中，第一信息的DCI格式不同于DCI格式1_0。第一信息的负载大小与第二信息可以不同。第一信息中所有的比特位都有各自的功能。第一信息可不包含保留比特。第一信息中不包含第一信息域。如图7所示，本申请中的一种第一信息的信息域由频域资源分配信息域、时域资源分配信息域、VRB到PRB映射信息域、调制和编码方式信息域、新数据指示信息域、冗余版本信息域、HARQ进程号信息域、下行分配索引信息域、PUCCH传输功率控制命令信息域、PUCCH资源指示信息域以及PDSCH到HARQ反馈定时指示信息域组成。或者，第一信息中的信息域为：频域资源分配信息域、时域资源分配信息域、VRB到PRB映射信息域、调制和编码方式信息域。
示例性的，图7所示的第一信息中的时域资源分配信息域的大小可与第二信息中的时域资源分配信息域的大小相同，例如均为4比特；第一信息中的VRB到PRB映射信息域的大小可与第二信息中的VRB到PRB映射信息域的大小相同，例如均为1比特；第一信息中的调制和编码方式信息域的大小可与第二信息中的调制和编码方式信息域的大小相同，例如均为5比特；第一信息中的新数据指示信息域的大小可与第二信息中的新数据指示信息域的大小相同，例如均为1比特；第一信息中的调制和编码方式信息域的大小可与第二信息中的调制和编码方式信息域的大小相同，例如均为5比特；第一信息中的下行分配索引信息域的大小可与第二信息中的下行分配索引信息域的大小相同，例如均为2比特；第一信息中的PUCCH的传输功率控制命令信息域的大小可与第二信息中的PUCCH的传输功率控制命令信息域的大小相同，例如均为2比特。
进一步的，第二信息中，第一信息域占用的比特位，可在图7所示的第一信息中用于指示频域资源分配。或者换句话说，第二信息中由第一信息域占用的比特位，包含在图6所示的FDRA信息域中，从而增加了频域资源分配信息域的大小，或者说增加了频域资源分配信息域包含的比特位的数量，从而实现更加灵活的频域资源指示。例如，第二信息中的第1个比特位为DCI格式标识信息域占用的比特位，在第一信息中不存在DCI格式标识信息域，第一信息中的第1个比特位用于指示频域资源分配。
可选的，FDRA域的大小由第一频域资源的频域宽度确定。如图6所示的频域资源分配信息域的大小与第一频域资源的宽度(如第一频域资源的RB数)相关。例如，频域资源分配信息域的大小L满足以上公式四。
进一步地，网络设备101可通过高层信令设置广播多播DCI中必要的信息域及比特数：
图7中，冗余版本信息域的大小可由终端设备根据来自网络设备101的第一指示信息确定。第一指示信息可以为RRC信令。第一指示信息用于指示冗余版本信息域的比特数m。当m＝0时，第一信息调度的数据信道的冗余版本默认为RV0。当m＝1时，冗余版本信息域所指示的数据信道的冗余版本可以为RV0和RV3，或者RV0和RV2，或者RV0和RV1。
图7中，HARQ进程号信息域的大小可由终端设备根据来自网络设备101的第二指示信息确定。第二指示信息可以为RRC信令。第二指示信息用于指示HARQ进程号信息域的比特数n。或者，第二指示信息的个数为I 1，
Figure PCTCN2020079063-appb-000016
当n＝0时，第一信息调度的PDSCH的HARQ进程号为1或0；当n＝1时，第一信息调度的PDSCH的最多有2个进程；当n＝2时，第一信息调度的PDSCH的最多有4个进程；当n＝3时，第一信息调度的PDSCH的最多有8个进程；当n＝4时，第一信息调度的PDSCH的最多有16个进程。
图7中，PDSCH到HARQ反馈定时指示信息域的大小可由终端设备根据来自网络设备101的第三指示信息确定。第三指示信息可以为RRC信令。第三指示信息用于指示该信息域的比特数q。或者，第三指示信息的个数为I 2，
Figure PCTCN2020079063-appb-000017
q的取值可以为0、1、2或3。当q为0时，PDSCH到HARQ反馈定时由高层参数确定。
图7中，PUCCH资源指示信息域的大小可由终端设备根据来自网络设备101的第四指示信息确定。第四指示信息可以为RRC信令。第四指示信息用于指示该信息域的比特数p。或者，第四指示信息的个数为I 3，
Figure PCTCN2020079063-appb-000018
p的取值可以为0、1、2或3。当p为0时，PUCCH资源由高层参数确定。
另外，为了保证第一信息的负载大小与第二信息负载大小相同，需要在第一信息中添加若干个保留比特位。如图8所示，此时第一信息的信息域可包括频域资源分配信息域、时域资源分配信息域、VRB到PRB映射信息域、调制和编码方式信息域、新数据指示信息域、冗余版本信息域、HARQ进程号信息域、下行分配索引信息域、PUCCH传输功率控制命令信息域、PUCCH资源指示信息域以及PDSCH到HARQ反馈定时指示信息域以及保留比特位。
例如，保留比特位的大小L 0可满足以下公式：
L 0＝l-L+K-m-n-q-p；(公式七)
其中，l根据CORESET0和初始BWP的宽度确定。示例性的，l满足公式四。L满足公式五。K为第二信息中的DCI格式标识信息域、时域资源分配信息域、VRB到PRB映射信息域、调制和编码方式信息域、新数据指示信息域、冗余版本信息域、HARQ进程号信息域、下行分配索引信息域、PUCCH传输功率控制命令信息域、PUCCH资源指示信息域以及PDSCH到HARQ反馈定时指示信息域的大小的总和。m为第一信息中冗余版本信息域的大小。n为第一信息中HARQ进程号信息域的长度。q为第一信息中PDSCH到HARQ反馈定时指示信息域的长度。p为第一信息中PUCCH资源指示信息域的长度。
应理解，以上图7和/或图8所示的第一信息的格式可不同于DCI格式1_0、DCI格式1_1和/或DCI格式1_2。
该示例中，如图7和/或图8所示的第一信息可应用于终端设备不支持上行HARQ反馈的场景。例如，网络设备101可向终端设备发送第四信息，该第四信息用于指示终端设备支持上行HARQ反馈。或者，可默认终端设备支持上行HARQ反馈。
举例来说，若终端设备接收的第四信息用于指示支持上行HARQ反馈，则第二信息中 的DCI格式标识信息域对应的比特位在第一信息中用于指示频域资源分配。此时第一信息的信息域结构可如图7和/或图8所示，即第一信息的信息域由频域资源分配信息域、时域资源分配信息域、VRB到PRB映射信息域、调制和编码方式信息域、新数据指示信息域、冗余版本信息域、HARQ进程号信息域、下行分配索引信息域、PUCCH传输功率控制命令信息域、PUCCH资源指示信息域以及PDSCH到HARQ反馈定时指示信息域组成。
在S102之后，网络设备101可向终端设备发送数据信道，由终端设备根据第一信息指示的频域资源接收该数据信道。
基于与以上方法实施例相同的发明构思，本申请实施例还提供一种通信装置，该通信装置可具备上述方法实施例中的网络设备或终端设备的功能或步骤或操作。比如，在通信装置中可以设置与上述各方法中的功能或步骤或操作相对应的功能模块来支持该通信装置执行上述方法。该功能可以通过硬件实现，也可以通过软件或者硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。示例性的，该通信装置可以是芯片或者具有通信模块的通信芯片，或者由芯片或具有通信模块的通信芯片实现。
在一种可能的实现方式中，如图9所示的通信装置900可作为上述方法实施例所涉及的终端设备，执行上述方法实施例中由终端设备执行的步骤。如图9所示，该通信装置900可包括通信模块901以及处理模块902，该通信模块901以及处理模块902之间相互耦合。该通信模块901可用于支持通信装置900进行通信，通信模块901可具备无线通信功能，例如能够通过无线空口与其他通信装置进行无线通信。处理模块902可用于支持该通信装置900执行上述方法实施例中的处理动作，包括但不限于：生成由通信模块901发送的信息、消息，和/或，对通信模块901接收的信号进行解调解码等等。
以上通信模块901具体可用于执行图3所示的通信方法中终端设备发送和/或接收的动作。例如，通信模块901可用于执行终端设备向网络设备发送信息、消息或信令的动作，或用于执行从网络设备接收信息、消息或信令的动作。
以上处理模块902具体可用于执行图3所示的通信方法中终端设备的处理动作，如用于控制通信模块901进行信息、消息或信令的接收和或发送，以及执行信息的处理等操作。
示例性的，处理模块902可用于获取第一频域资源以及第二频域资源，其中，该第一频域资源以及该第二频域资源是独立配置的，该第二频域资源包括CORESET0和初始BWP。通信模块901可用于接收第一信息，该第一信息用于调度下行数据信道。该第一信息中包括频域资源分配信息，该频域资源分配信息用于在该第一频域资源的范围内指示该下行数据信道的频域资源。该第一信息由G-RNTI加扰。其中，第一频域资源和/或第二频域资源可以是网络设备配置的。第一信息的设置方式可参照本申请方法实施例部分的说明。
示例性的，通信模块901还可用于接收第二信息，该第二信息为DCI格式1_0，且该第二信息由C-RNTI加扰。第二信息的设置方式可参照本申请方法实施例部分的说明。
通信模块901还可用于接收来自于该网络设备的第三信息。该第三信息用于指示该终端设备不支持上行HARQ反馈。第三信息的设置方式可参照本申请方法实施例部分的说明。
在另一种可能的实现方式中，本申请实施例提供的通信装置还可由硬件组件构成，这些硬件组件例如处理器、存储器或者收发器等。为便于理解和图示方便，图10中，以手机为例说明终端设备可能的结构。如图10所示，通信装置1000可包括处理器1001、存储器1002以及收发器1003。
以上处理器1001可用于对通信协议以及通信数据进行处理，以及对终端设备进行控 制，执行软件程序，处理软件程序的数据等。存储器1002可用于存储程序和数据，处理器1001可基于该程序执行本申请实施例中由终端设备执行的方法。
收发器1003可包括射频单元以及天线。其中，射频单元可用于基带信号与射频信号的转换以及对射频信号的处理。天线可用于收发电磁波形式的射频信号。另外，也可仅将射频单元视为收发器1003，则此时通信装置1000可包括处理器1001、存储器1002、收发器1003以及天线。
另外，该通信装置1000还可包括输入输出装置1004，如触摸屏、显示屏或者键盘等可用于接收用户输入的数据以及对用户输出数据的组件。需要说明的是，有些种类的通信装置可以不具有输入输出装置。
基于图10所示结构，当通信装置1000需要发送数据时，处理器1001可对待发送的数据进行基带处理后，输出基带信号至射频单元，射频单元将基带信号进行射频处理后将射频信号通过天线以电磁波的形式进行发送。当有数据发送到通信装置1000时，射频单元通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器1001，处理器1001将基带信号转换为数据并对该数据进行处理。
示例性的，处理器1001可用于获取第一频域资源以及第二频域资源，其中，该第一频域资源以及该第二频域资源是独立配置的，该第二频域资源包括CORESET0和初始BWP。通信模块901可用于接收第一信息，该第一信息用于调度下行数据信道。该第一信息中包括频域资源分配信息，该频域资源分配信息用于在该第一频域资源的范围内指示该下行数据信道的频域资源。该第一信息由G-RNTI加扰。其中，第一频域资源和/或第二频域资源可以是网络设备配置的。第一信息的设置方式可参照本申请方法实施例部分的说明。
示例性的，收发器1003还可用于接收第二信息，该第二信息为DCI格式1_0，且该第二信息由C-RNTI加扰。第二信息的设置方式可参照本申请方法实施例部分的说明。
收发器1003还可用于接收来自于该网络设备的第三信息。该第三信息用于指示该终端设备不支持上行HARQ反馈。第三信息的设置方式可参照本申请方法实施例部分的说明。
如图11所示，通信装置1100可作为上述方法实施例所涉及的网络设备，并执行上述方法实施例中由网络设备执行的步骤。如图11所示，该通信装置1100可包括通信模块1101以及处理模块1102，该通信模块1101以及处理模块1102之间相互耦合。该通信模块1101可用于支持通信装置1100进行通信，通信模块1101可具备无线通信功能，例如能够通过无线空口与其他通信装置进行无线通信。处理模块1102可用于支持该通信装置1100执行上述方法实施例中的处理动作，包括但不限于：生成由通信模块1101发送的信息、消息，和/或，对通信模块1101接收的信号进行解调解码等等处理。
以上通信模块1101具体可用于执行如图3中所示的通信方法中网络设备101的动作。示例性的，通信模块1101可用于执行网络设备101向终端设备发送信息、消息或信令的动作，或用于执行从第一通信设备或网络设备101接收信息、消息或信令的动作。
以上处理模块1102具体可用于执行如图3中所示的通信方法中网络设备、第三通信设备和/或第四通信设备的处理动作，如用于控制通信模块1101进行信息、消息或信令的接收和或发送，以及执行信息的处理等操作。
示例性的，处理模块1102可用于确定第一频域资源以及第二频域资源，其中，该第一频域资源以及该第二频域资源是独立配置的，该第二频域资源包括CORESET0和初始BWP。通信模块1101可用于向终端设备发送第一信息，该第一信息用于调度终端设备的 下行数据信道。该第一信息中包括频域资源分配信息，该频域资源分配信息用于在该第一频域资源的范围内指示该下行数据信道的频域资源。该第一信息由G-RNTI加扰。第一信息的设置方式可参照本申请方法实施例部分的说明。
此外，通信模块1101还可用于向终端设备发送第二信息，该第二信息为DCI格式1_0，且该第二信息由C-RNTI加扰。第二信息的设置方式可参照本申请方法实施例部分的说明。
通信模块1101还可用于向该终端设备发送第三信息。该第三信息用于指示该终端设备不支持上行HARQ反馈。第三信息的设置方式可参照本申请方法实施例部分的说明。
在另一种可能的实现方式中，本申请实施例提供的通信装置还可由硬件组件构成，这些硬件组件例如处理器、存储器或者收发器等，以实现本申请中网络设备的功能。
为便于理解，图12中以基站为例说明该通信装置的结构。如图12所示，该通信装置1200可包括收发器1201、存储器1202以及处理器1203，以实现本申请实施例中提供的网络设备的功能。该收发器1201可以用于通信装置进行通信。该存储器1202与该处理器1203耦合，可用于保存通信装置1200实现各功能所必要的程序和数据。该处理器1203被配置为支持通信装置1200执行上述方法中网络设备相应的功能，该功能可通过调用存储器1202存储的程序实现。
具体的，该收发器1201可以是无线收发器，可用于支持通信装置1200通过无线空口进行接收和发送信令和/或数据。收发器1201也可被称为收发单元或通信单元，收发器1201可包括射频单元以及一个或多个天线，其中，射频单元如远端射频单元(remote radio unit，RRU)，具体可用于射频信号的传输以及射频信号与基带信号的转换，该一个或多个天线具体可用于进行射频信号的辐射和接收。可选的，收发器1201可以仅包括以上射频单元，则此时通信装置1200可包括收发器1201、存储器1202、处理器1203以及天线。
存储器1202以及处理器1203可集成于一体也可相互独立。如图12所示，可将存储器1202以及处理器1203集成于通信装置1200的控制单元1210。示例性的，控制单元1210可包括LTE基站的基带单元(baseband unit，BBU)，基带单元也可称为数字单元(digital unit，DU)，或者，该控制单元1210可包括5G和未来无线接入技术下基站中的分布式单元(distribute unit，DU)和/或集中单元(centralized unit，CU)。上述控制单元1210可由一个或多个单板构成，其中，多个单板可以共同支持单一接入制式的无线接入网(如LTE网络)，多个单板也可以分别支持不同接入制式的无线接入网(如LTE网络，5G网络或其他网络)。该存储器1202和处理器1203可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器1202和处理器1203。也可以是多个单板共用相同的存储器1202和处理器1203。此外每个单板上可以设置有必要的电路，如，该电路可用于实现存储器1202以及处理器1203的耦合。以上收发器1201、处理器1203以及存储器1202之间可通过总线(bus)结构和/或其他连接介质实现连接。
基于图12所示结构，当通信装置1200需要发送数据时，处理器1203可对待发送的数据进行基带处理后，输出基带信号至射频单元，射频单元将基带信号进行射频处理后将射频信号通过天线以电磁波的形式进行发送。当有数据发送到通信装置1200时，射频单元通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器1203，处理器1203将基带信号转换为数据并对该数据进行处理。
在实现本申请实施例提供的通信方法时，处理器1203可用于确定第一频域资源以及第二频域资源，其中，该第一频域资源以及该第二频域资源是独立配置的，该第二频域资 源包括CORESET0和初始BWP。收发器1201可用于向终端设备发送第一信息，该第一信息用于调度终端设备的下行数据信道。该第一信息中包括频域资源分配信息，该频域资源分配信息用于在该第一频域资源的范围内指示该下行数据信道的频域资源。该第一信息由G-RNTI加扰。第一信息的设置方式可参照本申请方法实施例部分的说明。
示例性的，收发器1201还可用于向终端设备发送第二信息，该第二信息为DCI格式1_0，且该第二信息由C-RNTI加扰。第二信息的设置方式可参照本申请方法实施例部分的说明。
收发器1201还可用于向该终端设备发送第三信息。该第三信息用于指示该终端设备不支持上行HARQ反馈。第三信息的设置方式可参照本申请方法实施例部分的说明。
另外，根据实际使用的需要，本申请实施例提供的通信装置可包括处理器，由该处理器调用外接的收发器和/或存储器以实现上述功能或步骤或操作。通信装置也可包括存储器，由处理器调用并执行存储器中存储的程序实现上述功能或步骤或操作。或者，通信装置也可包括处理器即收发器，由处理器调用并执行外接的存储器中存储的程序实现上述功能或步骤或操作。或者，通信装置也可包括处理器、存储器以及收发器。
基于与上述方法实施例相同构思，本申请实施例中还提供一种计算机可读存储介质，其上存储有程序指令(或称计算机程序、指令)，该程序指令被处理器执行时，使该计算机执行上述方法实施例、方法实施例的任意一种可能的实现方式中由网络设备和/或终端设备执行的操作。
基于与上述方法实施例相同构思，本申请还提供一种计算机程序产品，包括程序指令，该计算机程序产品在被计算机调用执行时，可以使得计算机实现上述方法实施例、方法实施例的任意一种可能的实现方式中由网络设备和/或终端设备执行的操作。
基于与上述方法实施例相同构思，本申请还提供一种芯片或芯片系统，该芯片与收发器耦合，用于实现上述方法实施例、方法实施例的任意一种可能的实现方式中由网络设备和/或终端设备执行的操作。该芯片系统可包括该芯片，以及包括存储器、通信接口等组件。
基于与上述方法实施例相同构思，本申请还提供一种通信系统，该通信系统可用于实现上述方法实施例、方法实施例的任意一种可能的实现方式中由网络设备和/或终端设备执行的操作。示例性的，该通信系统具有如图1所示的结构。
以图1所示通信系统为例，网络设备101可用于确定第一频域资源以及第二频域资源，其中，该第一频域资源以及该第二频域资源是独立配置的，该第二频域资源包括CORESET0和初始BWP。终端设备可获取第一频域资源以及第二频域资源。此外，网络设备101还可向终端设备发送第一信息，该第一信息用于调度终端设备的下行数据信道。相应地，终端设备可接收该第一信息。第一信息的设置方式可参照本申请方法实施例部分的介绍。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/ 或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的保护范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (24)

  1. 一种通信方法，其特征在于，包括：
    终端设备获取第一频域资源以及第二频域资源，所述第一频域资源以及所述第二频域资源是独立配置的，所述第二频域资源包括控制资源集合CORESET0和初始部分带宽BWP；
    终端设备接收第一信息，所述第一信息用于调度下行数据信道；所述第一信息中包括频域资源分配信息，所述频域资源分配信息用于在所述第一频域资源的范围内指示所述下行数据信道的频域资源，所述第一信息由组无线网络临时标识G-RNTI加扰。
  2. 如权利要求1所述的方法，其特征在于，所述第一信息不包括以下至少一个信息的信息域：
    新数据指示；或者，
    冗余版本；或者，
    混合自动重传请求HARQ进程号；或者，
    下行分配索引；或者，
    物理上行数据信道PUCCH传输功率控制命令；或者，
    PUCCH资源指示；或者，
    物理下行共享信道PDSCH到HARQ反馈定时指示。
  3. 如权利要求1或2所述的方法，其特征在于，所述第一信息不包括下行控制信息DCI格式标识信息，所述DCI格式标识信息用于指示上行或下行DCI格式。
  4. 如权利要求1-3中任一所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收第二信息，所述第二信息为DCI格式1_0，所述第二信息由小区无线网络临时标识C-RNTI加扰；
    所述第二信息包括以下信息的信息域：
    DCI格式标识；
    频域资源分配；
    时域资源分配；
    虚拟资源块VRB到物理资源块PRB映射；
    调制和编码方式；
    新数据指示；
    冗余版本；
    HARQ进程号；
    下行分配索引；
    PUCCH传输功率控制命令；
    PUCCH资源指示；
    PDSCH到HARQ反馈定时指示。
  5. 如权利要求4所述的方法，其特征在于，所述第一信息的负载大小与所述第二信息的负载大小相同；和/或，
    所述第一信息的DCI格式与所述第二信息的DCI格式相同。
  6. 如权利要求4或5所述的方法，其特征在于，所述第一信息中对应于第一信息域 的比特位，在所述第一信息中用于指示所述下行数据信道的频域资源，所述第一信息域为所述第二信息中的信息域。
  7. 如权利要求6所述的方法，其特征在于，所述第一信息域为以下至少一个信息的信息域：
    DCI格式标识；或者，
    新数据指示；或者，
    冗余版本；或者，
    HARQ进程号；或者，
    下行分配索引；或者，
    PUCCH传输功率控制命令；或者，
    PUCCH资源指示；或者，
    PDSCH到HARQ反馈定时指示。
  8. 如权利要求6或7所述的方法，其特征在于，所述第一信息域为以下至少一个信息的信息域：
    新数据指示；或者，
    冗余版本；或者，
    HARQ进程号；或者，
    下行分配索引；或者，
    PUCCH传输功率控制命令；或者，
    PUCCH资源指示；或者，
    PDSCH到HARQ反馈定时指示；
    所述方法还包括：
    所述终端设备接收来自于所述网络设备的第三信息，所述第三信息用于指示所述终端设备不支持上行HARQ反馈。
  9. 如权利要求1-8中任一所述的方法，其特征在于，第一信息中的频域资源信息域的大小与所述第一频域资源相关联。
  10. 一种通信方法，其特征在于，包括：
    网络设备配置第一频域资源以及第二频域资源，所述第一频域资源以及所述第二频域资源是独立配置的，所述第二频域资源包括CORESET0和初始BWP；
    所述网络设备发送第一信息，所述第一信息用于调度终端设备发送下行数据信道；所述第一信息中包括频域资源分配信息，所述频域资源分配信息用于在所述第一频域资源的范围内指示所述下行数据信道的频域资源，所述第一信息由G-RNTI加扰。
  11. 如权利要求10所述的方法，其特征在于，所述第一信息不包括以下至少一个信息的信息域：
    新数据指示；或者，
    冗余版本；或者，
    HARQ进程号；或者，
    下行分配索引；或者，
    PUCCH传输功率控制命令；或者，
    PUCCH资源指示；或者，
    PDSCH到HARQ反馈定时指示。
  12. 如权利要求10或11所述的方法，其特征在于，所述第一信息不包括DCI格式标识信息，所述DCI格式标识信息用于指示上行或下行DCI格式。
  13. 如权利要求10-12中任一所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端设备发送第二信息，所述第二信息为DCI格式1_0，所述第二信息由C-RNTI加扰；
    所述第二信息包括以下信息的信息域：
    DCI格式标识；
    频域资源分配；
    时域资源分配；
    VRB到PRB映射；
    调制和编码方式；
    新数据指示；
    冗余版本；
    HARQ进程号；
    下行分配索引；
    PUCCH传输功率控制命令；
    PUCCH资源指示；
    PDSCH到HARQ反馈定时指示。
  14. 如权利要求13所述的方法，其特征在于，所述第一信息的负载大小与所述第二信息的负载大小相同；和/或，
    所述第一信息的DCI格式与所述第二信息的DCI格式相同。
  15. 如权利要求13或14所述的方法，其特征在于，所述第一信息中对应于第一信息域的比特位，在所述第一信息中用于指示所述下行数据信道的频域资源，所述第一信息域为所述第二信息中的信息域。
  16. 如权利要求15所述的方法，其特征在于，所述第一信息域为以下至少一个信息的信息域：
    DCI格式标识；或者，
    新数据指示；或者，
    冗余版本；或者，
    HARQ进程号；或者，
    下行分配索引；或者，
    PUCCH传输功率控制命令；或者，
    PUCCH资源指示；或者，
    PDSCH到HARQ反馈定时指示。
  17. 如权利要求15或16所述的方法，其特征在于，所述第一信息域包括以下至少一个信息的信息域：
    新数据指示；或者，
    冗余版本；或者，
    HARQ进程号；或者，
    下行分配索引；或者，
    PUCCH传输功率控制命令；或者，
    PUCCH资源指示；或者，
    PDSCH到HARQ反馈定时指示；
    所述方法还包括：
    所述网络设备向所述终端设备发送第三信息，所述第三信息用于指示所述终端设备不支持上行HARQ反馈。
  18. 如权利要求10-17中任一所述的方法，其特征在于，第一信息中的频域资源信息域的大小与所述第一频域资源相关联。
  19. 一种通信装置，其特征在于，包括：
    收发器，用于所述通信装置进行通信；
    处理器，用于执行存储器中存储的程序指令，执行如权利要求1-9中任一所述的方法。
  20. 一种通信装置，其特征在于，包括：
    收发器，用于所述通信装置进行通信；
    处理器，用于执行存储器中存储的程序指令，执行如权利要求10-18中任一所述的方法。
  21. 一种通信系统，其特征在于，包括如权利要求19所述的通信装置，以及包括如权利要求20所述的通信装置。
  22. 一种计算机可读存储介质，其特征在于，包括程序指令，当所述程序指令在计算机上运行时，使得所述计算机执行如权利要求1-18中任一所述的方法。
  23. 一种计算机程序产品，其特征在于，当所述计算机程序产品被执行时，使得如权利要求1-18中任一所述的方法被实现。
  24. 一种芯片，其特征在于，包括处理器，所述处理器用于执行存储器中存储的程序指令，执行如权利要求1-18中任一所述的方法。
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US20230006797A1 (en) 2023-01-05
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