WO2021031390A1 - 用于指示控制信息的方法和装置 - Google Patents

用于指示控制信息的方法和装置 Download PDF

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Publication number
WO2021031390A1
WO2021031390A1 PCT/CN2019/116834 CN2019116834W WO2021031390A1 WO 2021031390 A1 WO2021031390 A1 WO 2021031390A1 CN 2019116834 W CN2019116834 W CN 2019116834W WO 2021031390 A1 WO2021031390 A1 WO 2021031390A1
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Prior art keywords
information
coreset
offset
indicate
synchronization signal
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PCT/CN2019/116834
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English (en)
French (fr)
Inventor
吴霁
张佳胤
贾琼
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CA3148156A priority Critical patent/CA3148156A1/en
Priority to JP2022509716A priority patent/JP7432708B2/ja
Priority to CN201980096744.9A priority patent/CN113875303A/zh
Priority to EP19941799.9A priority patent/EP4017166A4/en
Publication of WO2021031390A1 publication Critical patent/WO2021031390A1/zh
Priority to US17/673,495 priority patent/US20220174624A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking

Definitions

  • This application relates to communication technology, and more particularly to a method and device for indicating control information.
  • the New Radio (NR) standard defines a synchronization burst set (SS burst set), which is mainly used for user equipment (User Equipment, UE) for initial access, system message update, or beam management.
  • the duration of each SS burst set is 5ms, and the period can be 5, 10, 20, 40, 80, or 100ms.
  • the SS burst set consists of several synchronization signal blocks (Synchronization signal blocks, SSB). When the carrier frequency is less than 6GHz, each SS burst set contains at most 8 SSBs. When the carrier frequency is greater than 6GHz, each SS burst set contains at most 64 SSB.
  • each SSB lasts for 4 symbols, corresponding to the primary synchronization signal (PSS), physical broadcast channel (PBCH), and secondary synchronization signal (SSS). ) And PBCH.
  • PSS primary synchronization signal
  • PBCH physical broadcast channel
  • SSS secondary synchronization signal
  • PBCH primary synchronization signal
  • SSB can correspond to different beam directions to ensure cell coverage.
  • the configuration information of the physical downlink control channel sent through the PBCH occupies a large resource overhead.
  • This application provides a method and device for indicating control information, so as to reduce the resource overhead of the information used to indicate the time domain resource location of CORESET 0 in the PBCH.
  • an embodiment of the present application provides a method for indicating control information.
  • the method may include: receiving first information sent by a network device, where the first information is used to indicate that the control information resource set CORESET 0 is in the time domain. The number of symbols occupied and the first offset in the frequency domain. The time-frequency resource location of the CORESET 0 is determined according to the first information and the predetermined subcarrier interval. Receive downlink control information at the time-frequency resource position of CORESET 0.
  • the first information sent by the network device has fewer bits than the information used to indicate the time domain resource location of CORESET 0 in the prior art, which can improve the resource usage efficiency of the PBCH.
  • the first information is also used to indicate the number of CORESET 0 in each time slot.
  • the first offset is used to indicate the sequence number of the first resource block RB corresponding to the CORESET 0, and the first RB is located in the partial bandwidth where the synchronization signal block corresponding to the first information is located,
  • the first offset is any one of X1, X2, X3, or X4, and X1, X2, X3, and X4 are integers and not equal.
  • the first information is four bits.
  • the first offset is any one of X1, X2, X3, or X4, so that four bits can be used to indicate the first offset, thereby saving resource overhead.
  • the first offset is used to indicate the sequence number of the first resource block RB corresponding to the CORESET 0, and the first RB is located in the partial bandwidth where the synchronization signal block corresponding to the first information is located,
  • the first offset is any one of Y1, Y2, Y3, Y4, Y5, or Y6, and Y1, Y2, Y3, Y4, Y5, and Y6 are integers and not equal.
  • the first information is five bits.
  • the first offset is any one of Y1, Y2, Y3, Y4, Y5, or Y6, so that five bits can be used to indicate the first offset, thereby saving resources Overhead.
  • the method may further include receiving second information sent by the network device, where the second information is used to indicate a second offset of CORESET 0 in the frequency domain, and the second offset is used for Indicate the sequence number of the subcarrier in the first RB corresponding to the CORESET 0, where the second offset is any one of 0 to 11, and the time-frequency resource position of the CORESET 0 is based on the first information and the The second information is determined.
  • the value range of the second offset is 0-11, and only 4 bits are needed to indicate in the main information block, which can save 1 compared to NR The bit indicates the overhead.
  • the partial bandwidth of the synchronization signal block corresponding to the first information is aligned with the frequency band of the wireless local area network, and the synchronization signal block is sent at a preset position of the partial bandwidth.
  • the method may further include receiving second information sent by the network device, where the second information is used to indicate at least one reference signal, and the at least one reference signal and the synchronization signal block are quasi co-located relationship.
  • an embodiment of the present application provides a method for indicating control information.
  • the method may include sending first information to a terminal device, where the first information is used to indicate that the control information resource set CORESET 0 is in the time domain. It accounts for the number of symbols and the first offset in the frequency domain, and the first information is determined according to a predetermined subcarrier interval. Send downlink control information at the time-frequency resource position of CORESET 0.
  • the method may further include sending second information to the terminal device, where the second information is used to indicate the second offset of CORESET 0 in the frequency domain, and the second offset is It indicates the sequence number of the subcarrier interval in the first RB corresponding to the CORESET 0, where the second offset is any one of 0 to 11.
  • the partial bandwidth of the synchronization signal block corresponding to the first information is aligned with the frequency band division of the wireless local area network, and the synchronization signal block is sent at a preset position of the partial bandwidth.
  • the method may further include: sending second information to the terminal device, where the second information is used to indicate at least one reference signal, and the at least one reference signal and the synchronization signal block are in a quasi co-location relationship.
  • an embodiment of the present application provides a communication device, which is configured to execute the method for indicating control information in the first aspect or any possible design of the first aspect.
  • the communication device may include a module for executing the first aspect or the method for indicating control information in any possible design of the first aspect.
  • it may include a transceiver module and a processing module.
  • the communication device may be a terminal device.
  • an embodiment of the present application provides a terminal device.
  • the terminal device includes a memory and a processor.
  • the memory is used to store instructions.
  • the processor is used to execute instructions stored in the memory. The execution causes the processor to execute the first aspect or any possible design method of the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, and the program is executed by a processor to implement the first aspect or any possible design method of the first aspect.
  • an embodiment of the present application provides a communication device, which is configured to execute the above-mentioned second aspect or the communication method in any possible design of the second aspect.
  • the communication device may include a module for executing the second aspect or the method for indicating control information in any possible design of the second aspect.
  • it may include a transceiver module and a processing module.
  • the communication device may be a network device.
  • an embodiment of the present application provides a network device, the network device includes a memory and a processor, the memory is used to store instructions, the processor is used to execute the instructions stored in the memory, and the instructions stored in the memory The execution causes the processor to execute the second aspect or any possible design method of the second aspect.
  • An eighth aspect provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the second aspect or the method in any possible design of the second aspect is implemented.
  • the method and apparatus for indicating control information of the present application send a main information block to a terminal device through a network device, and the main information block may include first information, and the first information is used to indicate the symbol occupied by CORESET 0 in the time domain The number and the first offset in the frequency domain.
  • the terminal device determines the time-frequency resource location of CORESET 0 according to the first information and the predetermined subcarrier interval, and the network device sends downlink control information at the time-frequency resource location of CORESET 0 .
  • the first information in this application has fewer bits, which can improve the resource usage efficiency of the PBCH.
  • Figure 1 is a schematic diagram of the SS burst set
  • FIG. 2 is a schematic diagram of another application scenario of an embodiment of the application.
  • FIG. 3 is a flowchart of a method for indicating control information according to an embodiment of the application
  • 4A is a schematic diagram of an SSB and corresponding CORESET 0 according to an embodiment of the application;
  • 4B is a schematic diagram of another SSB and the corresponding CORESET 0 according to an embodiment of the application;
  • 4C is a schematic diagram of another SSB and the corresponding CORESET 0 according to an embodiment of the application;
  • 4D is a schematic diagram of another SSB and the corresponding CORESET 0 according to an embodiment of the application;
  • FIG. 5 is a schematic diagram of a communication device 5000 according to an embodiment of the application.
  • FIG. 6 is a schematic diagram of another communication device 5100 according to an embodiment of the application.
  • FIG. 7 is a schematic diagram of a communication device 5200 according to an embodiment of the application.
  • FIG. 8 is a schematic block diagram of another communication device 5300 according to an embodiment of the application.
  • Fig. 9 is a schematic diagram of sent SSB and SSB candidate positions according to an embodiment of the application.
  • first and second in this application are only used for the purpose of distinguishing description, and cannot be understood as indicating or implying relative importance, nor as indicating or implying order.
  • the terms “including” and “having” and any variations of them are intended to cover non-exclusive inclusion, for example, a series of steps or units are included.
  • the method, system, product, or device is not necessarily limited to those clearly listed steps or units, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices.
  • At least one (item) refers to one or more, and “multiple” refers to two or more.
  • “And/or” is used to describe the association relationship of associated objects, indicating that there can be three kinds of relationships, for example, “A and/or B” can mean: only A, only B, and both A and B , Where A and B can be singular or plural.
  • the character “/” generally indicates that the associated objects are in an “or” relationship.
  • the following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a).
  • At least one (a) of a, b or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c" ", where a, b, and c can be single or multiple.
  • the network equipment involved in this application refers to equipment that can communicate with terminal equipment.
  • the network device can be an access network device, a relay station, or an access point.
  • the network equipment can be a base transceiver station (BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA) network, or it can be
  • the base station (NodeB, NB) in the Wideband Code Division Multiple Access (WCDMA) may also be the evolution base station (Evolutional NodeB, eNB or eNodeB) in the Long Term Evolution (LTE).
  • the network device may also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario.
  • cloud radio access network cloud radio access network, CRAN
  • the network device may also be a network device in a 5G network or a network device in a public land mobile network (Public Land Mobile Network, PLMN) that will evolve in the future.
  • the network device can also be a wearable device or a vehicle-mounted device.
  • the terminal equipment involved in this application refers to a communication device with a communication function.
  • it may be a wireless communication device, an Internet of Things (IoT) device, a wearable device or a vehicle-mounted device, a mobile terminal, a customer premise equipment (Customer Premise Equipment, CPE), etc.
  • the mobile terminal may also be called User Equipment (User Equipment, UE for short), access terminal, user unit, user station, mobile station, mobile station, user terminal, terminal, wireless communication equipment, user agent, or user device.
  • IoT Internet of Things
  • CPE Customer Premise Equipment
  • the mobile terminal may also be called User Equipment (User Equipment, UE for short), access terminal, user unit, user station, mobile station, mobile station, user terminal, terminal, wireless communication equipment, user agent, or user device.
  • User Equipment User Equipment
  • the mobile terminal can be a smart phone, a cellular phone, a cordless phone, a tablet computer, a personal digital assistant (PDA) device, an IoT device with wireless communication function, a computing device, or other processing device connected to a wireless modem , In-vehicle devices, wearable devices, devices in the Internet of Vehicles scene, terminal devices in the 5G network or terminal devices in the future evolved PLMN network, etc.
  • PDA personal digital assistant
  • an application scenario of an embodiment of the present application may include a terminal device and a network device.
  • the terminal device may be any of the above-mentioned terminal devices, and correspondingly, the network device may be any of the above-mentioned network devices.
  • the terminal device can receive the first information sent by the network device through the method for indicating control information of this application, and the first information is used to indicate the control information resource set 0 (ControlResourceSet 0, CORESET 0) occupied in the time domain.
  • the number of symbols and the first offset in the frequency domain, the position of the time domain resource of CORESET 0 is determined according to the first information and the predetermined subcarrier interval, and the time domain resource position of CORESET 0 is received from the network device.
  • Downlink control information is used to obtain resource configuration information for subsequent random access or perform RMSI update.
  • DCI Downlink control information
  • the first information in this application has fewer bits, which can improve the resource usage efficiency of the PBCH.
  • ControlResourceSet 0, CORESET 0 The control information resource set 0 (ControlResourceSet 0, CORESET 0) involved in this application can also be referred to as the remaining system information control information resource set (Remaining system information CORESET, RMSI CORESET). It has the same meaning, that is, it is used to carry type 0 physical downlink control channels (type-0 PDCCH).
  • FIG. 2 is a schematic diagram of another application scenario of an embodiment of the application.
  • the application scenario is illustrated by taking a base station (BS) and six UEs as an example, where: The six UEs are UE1, UE2, UE3, UE4, UE5, and UE6.
  • the base station can send the first information to UE1 to UE6, and UE1 to UE6 can perform random access or perform RMSI update based on the first information. It can receive uplink data sent by UE1 to UE6.
  • UE4 to UE6 can also form a communication system.
  • the BS can send downlink information to UE1, UE2, UE3, and UE5, and UE5 can also send downlink information to UE4 and UE6.
  • this embodiment takes a BS and a single cell as an example, and the embodiment of the present application is not limited thereto.
  • FIG. 3 is a flowchart of a method for indicating control information according to an embodiment of the application.
  • the method in this embodiment involves terminal equipment and network equipment. As shown in FIG. 3, the method in this embodiment may include:
  • Step 101 The network device sends the first information to the terminal device.
  • the terminal device receives the first information sent by the network device.
  • the first information may be carried in a master information block (MIB).
  • MIB master information block
  • the first information is used to indicate the number of symbols occupied by CORESET 0 in the time domain and the first offset in the frequency domain.
  • the terminal device obtains the PBCH in the synchronization signal block by detecting the synchronization signal block.
  • the PBCH may carry the MIB
  • the terminal device obtains the first information by parsing the MIB.
  • the MIB is carried in the PBCH.
  • the first information may be used to indicate the number of symbols occupied by CORESET 0 in the time domain and the first offset in the frequency domain.
  • the number of symbols occupied by CORESET 0 in the time domain may be, for example, 1 or 2.
  • the first offset may be the offset of the resource block (Resource Block, RB) granularity, which may be between the start position of CORESET 0 in the frequency domain and the start position of the synchronization signal block in the frequency domain Alternatively, it can be the offset value between the start position of CORESET 0 in the frequency domain and the start position of the BandWidth Part (BWP) of the synchronization signal block in the frequency domain, or, It can be the offset value between the end position of CORESET 0 in the frequency domain and the end position of the BWP where the synchronization signal block is located in the frequency domain.
  • Resource Block Resource Block
  • the starting position of the CORESET 0 in the frequency domain may be the position of the RB with the smallest RB index (or sequence number) among the RB resources occupied by the CORESET 0 in the frequency domain.
  • the starting position of the synchronization signal block in the frequency domain may be the position of the RB with the smallest RB index among the RB resources occupied by the synchronization signal block in the frequency domain.
  • the end position of the CORESET 0 in the frequency domain may be the position of the RB with the largest RB index among the RB resources occupied by the CORESET 0 in the frequency domain.
  • the termination position in the frequency domain of the BWP where the synchronization signal block is located may be the position of the RB with the largest RB index among the RB resources occupied by the BWP where the synchronization signal block is located in the frequency domain.
  • the BS may send a synchronization signal block
  • UE1, UE2, and UE3 respectively detect the synchronization signal block sent by the BS, and the synchronization signal block carries the first information.
  • Step 102 The terminal device determines the position of CORESET 0 according to the first information and the predetermined subcarrier interval. Specifically, the terminal device determines the time/frequency resource location of CORESET 0.
  • the predetermined subcarrier space may be 15kHz or 30kHz.
  • the terminal device may determine the preset subcarrier interval according to the subcarrier interval of the detected synchronization signal block. For example, if the subcarrier interval of the SSB detected by the terminal device is 30kHz, the terminal device may determine The preset subcarrier spacing is 30kHz. The sub-carrier interval of the SSB detected by the terminal device is 15 kHz, and the terminal device can determine that the preset sub-carrier interval is 15 kHz.
  • the terminal device may determine the number of symbols occupied by CORESET 0 in the time domain and the first offset in the frequency domain according to the first information and the predetermined subcarrier interval.
  • the first information may not indicate the number of RBs in the frequency domain resource of CORESET 0.
  • the terminal device may determine the number of RBs in the frequency domain resource of CORESET 0 according to the predetermined subcarrier interval.
  • the SSB and CORESET 0 in this embodiment of the application The subcarrier spacing is the same.
  • the number of RBs in the frequency domain resource of CORESET 0 is 48, and when the predetermined subcarrier interval is 15 kHz, the number of RBs in the frequency domain resource of CORESET 0 is 96.
  • the method for indicating control information in this application can be applied to NR (NR in Unlicensed Spectrum, NR-U) of unlicensed spectrum.
  • NR NR in Unlicensed Spectrum
  • the multiplexing mode of SSB and CORESET 0 is usually time division multiplexing, so the first information may not indicate the multiplexing mode of SSB and CORESET 0.
  • the start position of SSB in the time domain (for example, the start symbol in the time domain) and the corresponding CORESET 0 are adjacent or separated by one symbol in the time domain, and CORESET 0 is in the same
  • the position of the start symbol in the slot is fixed, and the number of symbols occupied by CORESET 0 in the time domain is 1 or 2.
  • the terminal device can determine the time domain resource position of CORESET 0 according to the number of symbols occupied by CORESET 0 in the time domain.
  • the terminal device can determine the frequency domain resource location of CORESET 0 according to the first offset of the CORESET 0 in the frequency domain and the number of RBs of the frequency domain resource of CORESET 0.
  • the terminal device may determine the time-frequency resource location of the CORESET 0 according to the time-domain resource location of the CORESET 0 and the frequency-domain resource location.
  • the first information does not need to indicate the sub-carrier interval of CORESET 0, the number of RBs in the frequency domain of CORESET 0, and the multiplexing mode of SSB and CORESET 0, so it is compared with current information.
  • the information in the technology used to indicate the time domain resource location of CORESET 0 has fewer bits, which can reduce the resource occupation of PBCH, and the saved resources can be used to indicate other information, thereby improving the resource utilization efficiency of PBCH .
  • Step 103 The network device sends the downlink control information at the time-frequency resource location of CORESET 0. In other words, the downlink control information is carried in CORESET 0.
  • the terminal device receives the downlink control information at the time-frequency resource position of CORESET 0.
  • the terminal device may obtain subsequent random access resource configuration information according to the downlink control information, so as to perform initial random access according to the random access resource configuration information.
  • the terminal device can update the RMSI according to the downlink control information.
  • first information is sent to the terminal device through the network device.
  • the first information is used to indicate the number of symbols occupied by CORESET 0 in the time domain and the first offset in the frequency domain.
  • a message and a predetermined subcarrier interval determine the time-frequency resource location of CORESET 0, the network device sends downlink control information at the time-frequency resource location of CORESET 0, and the terminal device can obtain subsequent random access resource configuration information according to the downlink control information, Perform initial random access according to the resource configuration information of random access, or update the RMSI according to downlink control information.
  • the first information in this application has fewer bits, which can improve the resource usage efficiency of the PBCH.
  • the first information can also be used to indicate the number of CORESET 0 in each time slot, for example, in each time slot
  • the number of CORESET 0 is 1 or 2.
  • the time domain resource location of CORESET 0 can be any one of Figures 4A to 4D.
  • the SSB and the corresponding CORESET 0 of the SSB are adjacent or separated by one symbol, and CORESET 0 is in the time slot.
  • the position of the start symbol inside is fixed, and the number of continuous symbols of CORESET 0 is 1 or 2 symbols.
  • each SSB and the CORESET 0 corresponding to the SSB occupies half a time slot (slot), that is, the number of CORESET 0 in a time slot is two.
  • the time slot is set with two CORESET 0, corresponding to different SSBs, the two CORESET 0 occupy 2 symbols, the first CORESET 0 occupied symbols are symbol #0 and symbol #1 , The symbols occupied by the second CORESET 0 are symbol #7 and symbol #8.
  • the time slot is set with two CORESET 0, corresponding to different SSBs.
  • the two CORESET 0 occupies 2 symbols.
  • the symbols occupied by the first CORESET 0 are symbol #0 and symbol #1.
  • Two symbols occupied by CORESET 0 are symbol #6 and symbol #7.
  • the time slot is provided with two CORESET 0s, corresponding to different SSBs.
  • the symbols occupied by the first CORESET 0 are symbol #0 and symbol #1, and the symbols occupied by the second CORESET 0 are symbol #7.
  • a CORESET0 is set in the time slot, that is, the number of CORESET 0 in a time slot is one, and the symbol occupied by CORESET 0 is symbol #1.
  • the aforementioned first offset is used to indicate the sequence number of the first resource block RB corresponding to CORESET 0.
  • the first RB may be the RB index (or sequence number) of the RB resources occupied by CORESET 0 in the frequency domain.
  • the position of CORESET 0 in the frequency domain is relatively fixed.
  • the initial access bandwidth (20 MHz) occupies 51 RBs, and when the predetermined sub-carrier interval is 30 kHz, the number of RBs in the frequency domain resource of CORESET 0 is 48.
  • the first offset may be 0, 1, 2, or 3.
  • the terminal device can determine the frequency domain resource position of CORESET 0 according to the first offset.
  • the sequence numbers of the 51 RBs occupied by the BWP where the synchronization signal block is located are 0-50, assuming that the first offset is 1.
  • the terminal device can determine that the frequency domain resource location of CORESET 0 is an RB with a sequence number of 1 to 48.
  • the offset value between the starting position in the frequency domain and the starting position of the synchronization signal block in the frequency domain is for example, the first offset may be -17, -18, -19 or -20.
  • the terminal device can determine the frequency domain resource location of CORESET 0 according to the first offset. For example, the sequence numbers of the 51 RBs occupied by the BWP where the synchronization signal block is located are 0-50, and it is assumed that the synchronization signal block is fixed at the sequence number 20. If the first offset is -18, the terminal device can determine that the frequency domain resource location of CORESET 0 is RBs with sequence numbers 2 to 49.
  • the first information when the predetermined subcarrier interval is 30 kHz, the first information may be four bits.
  • the first information can correspond to an index
  • different indexes can correspond to different CORESET 0
  • the number of symbols in the time domain and the first offset in the frequency domain For example, the corresponding relationship between the index and the number of symbols occupied by different CORESET 0 in the time domain and the first offset in the frequency domain can be shown in Table 1 below.
  • the first column in the table is index
  • the second column is the multiplexing mode of SSB and CORESET 1
  • the third column is the number of RBs of CORESET 0 in the frequency domain
  • the fourth column is CORESET 0
  • the fifth column is the first offset of CORESET 0 in the frequency domain
  • the sixth column is the number of CORESET 0 in each time slot.
  • Each row corresponds to a different index. Configuration of the above parameters (SSB and CORESET 0 multiplexing mode, CORESET 0 symbol number, etc.).
  • the index corresponding to the first information is 1, so that it can be determined that the multiplexing mode of SSB and CORESET 0 is mode 1, and the number of RBs in the frequency domain of CORESET 0 is 48.
  • CORESET 0 The number of symbols in the time domain is 1, the first offset of CORESET 0 is X2, and the number of CORESET 0 in each time slot is 1, so as to determine the time-frequency resource of CORESET 0 according to the configuration of each parameter position.
  • Table 1 is an exemplary description, which may also be in other specific forms.
  • the Table 1 may not include the second column, the third column or the sixth column.
  • the table 1 The order of the rows may be other orders, and the specific form of Table 1 is not used as a limitation in the embodiment of the present application.
  • different bits of the first information correspond to different parameter configurations.
  • the first bit of the four bits of the first information is used to indicate the number of symbols occupied by CORESET 0 in the time domain.
  • the second and third bits are used to indicate the first offset of CORESET 0 in the frequency domain, and the fourth bit is used to indicate the number of CORESET 0 in each time slot.
  • the first bit when the first bit is 0, it indicates that the number of symbols occupied by CORESET 0 in the time domain is 1, and when the first bit is 1, it indicates that the number of symbols occupied by CORESET 0 in the time domain is 2, and the second When the first and third bits are 00, it indicates that the first offset is X1, when the second and third bits are 01, it indicates that the first offset is X2, and the second and third bits are When it is 10, it indicates that the first offset is X3, when the second and third bits are 11, it indicates that the first offset is X4, and when the fourth bit is 0, it indicates that each time slot The number of CORESET 0 is 1, and when the fourth bit is 1, it indicates that the number of CORESET 0 in each time slot is 2.
  • the first information is 0001
  • the first offset is X1
  • the number of CORESET 0 in each time slot is 1, so that according to The above parameter configuration determines the time-frequency resource location of CORESET 0.
  • the first information is sent to the terminal device through the network device.
  • the first information is used to indicate the number of symbols occupied by CORESET 0 in the time domain and the first offset in the frequency domain.
  • the first information is With four bits, the terminal device determines the time-frequency resource location of CORESET 0 according to the first information and the predetermined subcarrier interval, and the network device sends downlink control information at the time-frequency resource location of CORESET 0.
  • the first information in this application has fewer bits, which can improve the resource usage efficiency of the PBCH.
  • the information used to indicate the time domain resource location of CORESET 0 in the prior art is usually eight bits, and the first information in the embodiment of the present application may be four bits, thereby saving resource overhead.
  • the first offset of the frequency domain resource is used to indicate the sequence number of the first RB corresponding to CORESET 0, which is located in the synchronization signal corresponding to the first information (the main information block where the first information is located)
  • the position of CORESET 0 in the frequency domain is relatively fixed.
  • the initial access bandwidth (20 MHz) occupies 101 RBs, and when the predetermined sub-carrier spacing is 15 kHz, the number of RBs in the frequency domain of CORESET 0 is 96.
  • the first offset may be 0, 1, 2, 3, 4, or 5.
  • the terminal device can determine the frequency domain resource location of CORESET 0 according to the first offset.
  • the sequence numbers of 101 RBs occupied by the BWP where the synchronization signal block is located are 0 to 100, assuming that the first offset is 1.
  • the terminal device can determine that the frequency domain resource location of CORESET 0 is an RB with a sequence number of 1 to 96.
  • the first information is five bits.
  • the first information can correspond to an index
  • different indexes can correspond to different CORESET 0
  • the number of symbols in the time domain and the first offset in the frequency domain For example, the corresponding relationship between the index and the number of symbols occupied by different CORESET 0 in the time domain and the first offset in the frequency domain and other parameters can be shown in Table 2 below.
  • Scheduled sub-carrier interval 15kHz CORESET 0 configuration parameter table
  • the configuration corresponding to each column in Table 2 is the same as each column in Table 1, and will not be repeated here.
  • the difference between Table 2 and Table 1 is that the first offset can be one of the six values, so there are 24 indexes in Table 2, and each index corresponds to different parameters (SSB and CORESET 0 multiplexing mode, CORESET 0, the number of symbols, etc.) configuration.
  • the index corresponding to the first information is 1, so that it can be determined that the multiplexing mode of SSB and CORESET 0 is mode 1, and the number of RBs in the frequency domain of CORESET 0 is 96.
  • CORESET 0 The number of symbols in the time domain is 1, the first offset of the frequency domain resource of CORESET 0 is Y2, and the number of CORESET 0 in each time slot is 1, so that CORESET 0 is determined according to the configuration of each parameter The location of the time-frequency resource.
  • Table 2 is an exemplary description, which may also be in other specific forms.
  • the Table 2 may not include the second, third, or sixth columns.
  • the The order of the rows can be other orders, and the specific form of Table 2 is not used as a limitation in the embodiment of the present application.
  • the first information may also be four bits.
  • the first offset may support any four items of Y1, Y2, Y3, Y4, Y5, or Y6, so that the first information can be reduced to four bits.
  • the parameter configuration table is similar to the table. The difference is that the number of RBs in CORESET 0 is 96.
  • the offset is any four of Y1, Y2, Y3, Y4, Y5, or Y6.
  • the value of any four of Y1, Y2, Y3, Y4, Y5, or Y6 can be equal to X1, The values of X2, X3, and X4.
  • the first information may also be four bits.
  • the first information is sent to the terminal device through the network device.
  • the first information is used to indicate the number of symbols occupied by CORESET 0 in the time domain and the first offset in the frequency domain.
  • the first information is With four bits or five bits, the terminal device determines the time-frequency resource location of CORESET 0 according to the first information and the predetermined subcarrier interval, and the network device sends downlink control information at the time-frequency resource location of CORESET 0.
  • the first information in this application has fewer bits, which can improve the resource usage efficiency of the PBCH.
  • the information used to indicate the time domain resource location of CORESET 0 in the prior art is usually eight bits, and the first information in the embodiment of the present application may be four bits or five bits, thereby saving resource overhead.
  • the terminal device of the embodiment of the present application may also receive the second information sent by the network device.
  • the above-mentioned main information block may also include second information.
  • the second information is used to indicate the second offset of CORESET 0 in the frequency domain
  • the second offset is used to indicate the sequence number of the subcarrier in the first RB corresponding to CORESET 0.
  • the sequence number of the subcarrier in the first RB may be the sequence number with the smallest subcarrier sequence number in the RB with the smallest RB index (or sequence number) among the RB resources occupied by CORESET 0 in the frequency domain. It may also be called the sequence number in the first RB.
  • the starting position of the subcarrier is used to indicate the second offset of CORESET 0 in the frequency domain
  • the second offset is used to indicate the sequence number of the subcarrier in the first RB corresponding to CORESET 0.
  • the sequence number of the subcarrier in the first RB may be the sequence number with the smallest subcarrier sequence number in
  • the second offset is any one of 0 to 11, and the time-frequency resource position of CORESET 0 is determined according to the first information and the second information.
  • the second offset may be an offset of subcarrier granularity.
  • the second information may be the subcarrier offset value (ssb-subcarrieroffset) of the SSB in the main information block.
  • the transmission position of the SSB in the frequency domain may not be fixed, and the terminal device may follow the second information and download
  • the formula (1) or formula (2) determines the lowest carrier frequency of the physical resource block (PRB) where the lowest carrier is located, and then determines the time-frequency resource location of CORESET 0 in the 20MHz bandwidth where the SSB is located according to the above first information to determine the CORESET
  • the sequence number of the first RB corresponding to 0 and the sequence number of the subcarrier in the first RB is used.
  • formula (2) is used.
  • the lowest carrier frequency may be the starting position of the subcarrier occupied by the resource.
  • the lowest carrier frequency of the PRB where the lowest carrier of the SSB is located the lowest carrier frequency of the SSB-K_ssb*30kHz (1)
  • the lowest carrier frequency of the PRB where the lowest carrier of the SSB is located the frequency of the lowest carrier of the SSB-K_ssb*15kHz (2)
  • the value range of the above offset value is 0-11 sub-carriers, so only 4 One bit indicates the overhead to indicate K_ssb, which is the subcarrier offset value (ssb-subcarrieroffset) of the SSB.
  • K_ssb the subcarrier offset value (ssb-subcarrieroffset) of the SSB.
  • the value range of the above offset value is also 0-11 sub-carriers, so only 4 bits are needed to indicate the overhead to indicate K_ssb.
  • the value range of ssb-subcarrieroffset is 0-11, and only 4 bits are needed to indicate in the main information block, which can save 1 bit of indication overhead compared with NR.
  • the partial bandwidth of the synchronization signal block corresponding to the first information is aligned with the frequency band of the wireless local area network, and the synchronization signal block is at a preset position of the partial bandwidth. send.
  • NR-U needs to consider coexistence with wireless local area network (WiFi) in the 5GHz frequency band. Therefore, an achievable way is to divide channels according to the same frequency band as the wireless local area network (WiFi), and perform data/control information transmission.
  • SSB can be transmitted at a fixed position on each 20MHz frequency band.
  • the terminal device detects the SSB, it can determine the offset value between the start position of the SSB in the frequency domain and the above-mentioned start position of the 20 MHz bandwidth in the frequency domain. Since the location of the SSB in the frequency domain is fixed, no additional indication is needed.
  • the information used to indicate the ssb-subcarrieroffset in the main information block can be used for other purposes.
  • the above-mentioned second information can be used to indicate at least one reference signal, and the at least one reference signal It has a quasi-co-location (QCL) relationship with the synchronization signal block, thereby completing the beamforming or receiving processing assistance on the receiving side of the terminal device, and improving the efficiency of random access.
  • the second information may also indicate whether paging is to be sent, the length of a demodulation reference signal unit (Demodulation Reference Sgnal unit, DRS unit), etc., which are not described one by one in this embodiment.
  • the second offset can be determined according to the frequency point of the detected SSB and the corresponding frequency band, so there is no need to indicate in the main information block, which can reduce the indication Overhead.
  • the network device also sends third information to the terminal device, the third information is used to indicate the configuration of the control resource set 0 (CORESET0) and the type 0 PDCCH (type0-PDCCH) public search space (searchSpaceZero) Configuration.
  • the third information is carried in the MIB information of the SSB. Referring to Table 3, the third information is the index value in the table.
  • the terminal device can use the parameters M, O in Table 3 and the first symbol index (first symbol index) of SSB, and the SSB index (index) i Obtain the detection position of the type0-PDCCH common search space associated with the SSB i, where M is a parameter related to the number of Type0-PDCCH common search spaces in each slot.
  • the terminal device can search for the PDCCH on the obtained detection position.
  • Table 3 is pre-defined by the standard or sent by the network device to the terminal device.
  • the type-0 PDCCH common search space associated with SSB i is the two consecutive slots starting from the time slot (slot) n 0 in the frame where the system frame number (SFN) is SFN C, Among them, slot n 0 satisfies the following rules:
  • the system frame number SFN C meets the following rules:
  • SFN C mod2 1, in this case, SFN C is an odd number.
  • Table 3 Parameters for PDCCH monitoring occasions for Type0-PDCCH CSS set-SS/PBCH block and CORESET multiplexing pattern 1 and FR1
  • Number of search space sets per slot represents the number of search space sets in each slot.
  • searchSpaceZero includes the entries of Table 4 to increase the flexibility of the network device in sending DRS.
  • the network device sends DRS in frames with odd SFN C , and can also configure Type0-PDCCH common search space set (common search space set, CSS set) to sum and Type0-PDCCH CSS set is associated with the same slot as the SSB.
  • Table 4 only a subset of Table 4 may be included.
  • Table 4 Parameters for PDCCH monitoring occasions for Type0-PDCCH CSS set-SS/PBCH block and CORESET multiplexing pattern 1 and FR1
  • the First symbol index in the table contains the configuration of ⁇ 6, if i is odd ⁇ and ⁇ 7, if i is odd ⁇ , allowing the terminal device to be able to use the symbol 6 or symbol in the same subframe of the odd SSB associated with the Type0-PDCCH CSS set 7 Start to detect Type0-PDCCH CSS set, so that gNB can use the same beam to continuously send Type0-PDCCH and SSB, avoiding continuous beam switching in a short time. among them, Indicates the number of symbols occupied by CORESET0, such as the number of symbols occupied by CORESET0 in a time slot.
  • the network device can send the SSB and its corresponding Type0-PDCCH and RMSI PDSCH in the manner shown in Figure 9 below.
  • the 4 SSBs select candidate positions (or even-numbered SSB positions) located in the first half of the slot for transmission (or even-numbered SSB positions), and the SSB candidate positions occupy symbols 2, 3, 4, and 5.
  • the 4 SSBs select SSB candidate positions located in the second half of the slot for transmission (or odd SSB positions), and the SSB candidate positions occupy symbols 9, 10, 11, 12 (not shown) or 8,9,10,11.
  • the terminal device will detect the Type0-PDCCH corresponding to the SSB in the first few symbols of the slot where the SSB is located (which can be symbol 0, or symbol 0, 1).
  • the position marked with X/Y in Fig. 9 indicates the SSB candidate position that can be used to transmit SSB in the DRS transmission window. In the embodiment shown in Fig.
  • X indicates the index of the PBCH DMRS sequence in the SSB transmitted at the SSB candidate position (PBCH DMRS sequence index), the value of X can be 0,1,2,...,7; Y represents the indication information carried in the PBCH payload (PBCH payload) transmitted at the SSB candidate position, and the value of Y can be 0,1,2.
  • the network device may indicate the index value of the terminal device as in Table 3 above.
  • the third information may be the index in Table 4, and the value of the third information may be the value of index.
  • the terminal device can obtain the sequence number of the SSB from the PBCH DMRS sequence index and the PBCH payload. According to the sequence numbers of the PBCH DMRS sequence in the detected multiple SSBs, the detected different SSBs have quasi-colocation (quasi-colocation, QCL) relationship.
  • the SSB in the second half of the slot is not allowed to be associated with the Type0-PDCCH CSS set starting from symbol 0, it cannot support sending SSBs with 8 different QCL assumptions in the DRS, and the Type0-PDCCH and RMSI-PDSCH associated with the SSB are occupied The entire slot will affect the coverage of the system or increase interference to surrounding users.
  • the configuration proposed in this application can solve this technical problem.
  • this application proposes a configuration when the minimum DRS transmission period is less than 20 ms.
  • searchSpaceZero can use the configuration shown in Table 5 below:
  • Table 5 Parameters for PDCCH monitoring occasions for Type0-PDCCH CSS set-SS/PBCH block and CORESET multiplexing pattern 1 and FR1
  • SFC C represents the system frame where the Type0-PDCCH common search space set is located, and the SFN ssb,i is associated with the system frame where the SSB is associated with the Type0-PDCCH common search space set.
  • SFC C SFN ssb, i means that the system frame where the Type0-PDCCH common search space set is located and the system frame where the SSB associated with the Type0-PDCCH common search space set is located are the same system frame.
  • n c represents the time slot in the system frame where the Type0-PDCCH public search space set is located
  • n SSB i is the time slot in the system frame where the SSB associated with the Type0-PDCCH public search space set is located
  • n C n SSB
  • i represents Type0 -The time slot in the system frame where the PDCCH common search space set is located and the time slot in the system frame where the SSB associated with the Type0-PDCCH common search space set is located are the same time slot. Among them, if i is odd indicates the case where the index of the SSB is an odd number, and if i is even indicates the case where the index of the SSB is an even number.
  • a synchronization raster represents the frequency domain position of a synchronization signal block used by the UE for system access.
  • the UE determines the frequency domain position of the synchronization signal block through the synchronization signal grid.
  • the frequency domain position of the synchronization signal block is defined as the SSB reference frequency SS REF and its number is GSCN.
  • each SSB reference frequency is associated with a global synchronization channel number (GSCN). )correspond.
  • GSCN global synchronization channel number
  • the first frequency domain offset information between the CORESET 0 and the synchronization signal block or synchronization signal grid value is preset by the system, and the first frequency domain offset information may be called It is the "first frequency domain offset".
  • the synchronization signal block can be an SS block or an SS/PBCH block.
  • the first frequency domain offset information may be frequency domain offset information in units of Hz, MHz, kHz, etc., or may be frequency domain offset information in units of subcarriers, resource block PRB, resource unit RE, etc. .
  • the value corresponding to the first frequency domain offset information may be different, but it should be understood that the first value expressed in units of different basic units Mathematical conversion can be performed between frequency domain offset information, which is not limited in this application.
  • the synchronization signal grid value refers to SS REF on the synchronization signal grid.
  • the UE determines the first frequency domain offset from CORSET 0 according to the SS REF of the synchronization signal block grid corresponding to the synchronization signal block Information, specifically, the base station sends a synchronization signal block, correspondingly, the UE detects the synchronization signal block, and determines the first frequency domain offset information of CORESET 0 according to the GSCN corresponding to the detected synchronization signal block (combined with Table 5.4.3.1-1 And the following table 5) to determine the position of CORESET 0. Or, exemplarily, the UE detects the synchronization signal block on the synchronization signal grid. In the case where the frequency domain offset value represents the offset between CORESET 0 and the synchronization signal block grid value, the UE determines the frequency domain offset information from CORESET 0 according to the SS REF of the synchronization signal block grid.
  • the following uses A and B to represent CORESET 0, or sync signal block/sync signal block grid value, when A represents CORESET 0, B represents sync signal block or sync signal grid; when A represents sync signal For block or sync signal grid, B means CORESET 0.
  • the first frequency domain offset information between A and B can be represented by the offset between the start frequency domain position of A and the start frequency domain position of B, or the center frequency point position of A and B The offset between the center frequency point positions of, or the offset between the end frequency domain position of A and the end frequency domain position of B.
  • the first frequency domain offset information may be a number greater than zero and/or equal to zero and/or less than zero.
  • the relative positions of A and B can be distinguished by positive and negative values. For example, if the first frequency domain offset information is a negative value, it means that the starting frequency point of A is lower than the starting frequency point of B position.
  • the shift information is the frequency domain offset information between the start position of CORESET 0 in the frequency domain and the start position of the synchronization signal block in the frequency domain, or the first frequency domain offset
  • the shift information is the frequency domain offset information between the start position of CORESET 0 in the frequency domain and the synchronization signal grid as an example.
  • the positions of some synchronization signal blocks in the frequency domain are preset by the system.
  • the frequency domain positions of some synchronization signal blocks are defined by a synchronization signal block grid.
  • the grid corresponds to the frequency point information corresponding to the synchronization signal block, such as GSCN defined in Table 5.4.3.1-1 in NR 38.101-1.
  • One GSCN value corresponds to the reference frequency point of a synchronization signal block.
  • the reference frequency point It is the center frequency point corresponding to the synchronization signal block.
  • the frequency point may be specific frequency point information in units of Hz, MHz, kHz, etc., such as 5000 MHz.
  • the CORESET 0 is relative to the synchronization signal blocks or synchronization signal block grids (or GSCN) at the different frequency domain positions
  • the first frequency domain offset information of can be the same or different. Different first frequency domain offset information may be defined for each synchronization signal block or synchronization signal block grid (or GSCN).
  • each synchronization signal block or synchronization signal block grid is preset by the system, according to the frequency domain of the synchronization signal block or synchronization signal block grid (or GSCN)
  • the position information and the corresponding first frequency domain offset information can determine the frequency domain position of the CORESET0.
  • the form of a table may be used to preset the first frequency domain offset information between the CORESET 0 and the synchronization signal block or synchronization signal grid.
  • the first information may correspond to an index (index), and an index may correspond to a group of configurations.
  • the configuration includes the pattern of the synchronization signal block and the configuration information of CORESET 0 (which can be one of the number of RBs and the number of symbols).
  • Tables 3 and 4 respectively show the configuration parameter tables when the first information corresponds to different indexes in scenarios with different subcarrier spacing. Further, the first frequency domain offset information is preset in Table 5. Table 5 shows that for different synchronization signal grid positions GSCN preset by the system, in different subcarrier spacing scenarios, CORESET 0 is relatively The first frequency domain offset information between different synchronization signal blocks.
  • O 15kHz means that the PRB defined by the 15kHz subcarrier interval is the frequency domain offset information represented by the basic unit
  • O 30kHz means that the PRB defined by the 30kHz subcarrier interval is the frequency domain offset information represented by the basic unit.
  • the parameters defined in Tables 3, 4, and 5 are all used for illustration, and the formats of Tables 3, 4, and 5 can also be combined and do not constitute a limitation.
  • the second frequency domain offset information may also be included, and the second frequency domain offset information is obtained through system messages and/or RRC signaling. And/or DCI signaling to indicate.
  • the frequency domain offset between the CORESET 0 and the synchronization signal block or the synchronization signal grid value may be determined by combining the first frequency domain offset information and the second frequency domain offset information, and the second frequency domain offset information may Understand as an offset.
  • the frequency domain offset information the first frequency domain offset information+the second frequency domain offset information
  • the first frequency domain offset information is offset information in PRB units
  • the second frequency domain offset information is offset information in units of subcarriers, so that a more flexible indication can be achieved
  • FIG. 5 shows a schematic block diagram of a communication device 5000 according to an embodiment of the present application.
  • the apparatus 5000 in the embodiment of the present application may be the terminal device in the foregoing method embodiment, or may be one or more chips in the terminal device.
  • the apparatus 5000 may be used to perform part or all of the functions of the terminal device in the foregoing method embodiments.
  • the device 5000 may include a transceiver module 5010 and a processing module 5020.
  • the device 5000 may further include a storage module 5030.
  • the transceiver module 5010 may be used to receive the main information block from the network device in step 101 in the foregoing method embodiment, and to receive the downlink control information from the network device in step 103.
  • the processing module 5020 may be used to execute step 102 in the foregoing method embodiment.
  • the device 5000 may also be configured as a general-purpose processing system, such as a general-purpose chip.
  • the processing module 5020 may include: one or more processors that provide processing functions; the transceiver module 5010 may be, for example, an input/output interface, The input/output interface can be used to exchange information between the chip system and the outside world, such as pins or circuits. For example, the input/output interface can output the uplink data of the terminal device to other modules outside the chip for processing.
  • the processing module can execute the computer-executable instructions stored in the storage module to implement the functions of the terminal device in the foregoing method embodiment.
  • the storage module 5030 optionally included in the apparatus 5000 may be a storage unit in the chip, such as a register, a cache, etc., and the storage module 5030 may also be a storage unit located outside the chip in the terminal device.
  • ROM read-only memory
  • RAM random access memory
  • FIG. 6 shows a schematic block diagram of another communication device 5100 according to an embodiment of the present application.
  • the apparatus 5100 in the embodiment of the present application may be the terminal device in the foregoing method embodiment, and the apparatus 5100 may be used to perform part or all of the functions of the terminal device in the foregoing method embodiment.
  • the device 5100 may include a processor 5110, a baseband circuit 5130, a radio frequency circuit 5140, and an antenna 5150.
  • the device 5100 may further include a memory 5120.
  • the processor 5110, the memory 5120, and the baseband circuit 5130 of the device 5100 are coupled together via a bus 5160.
  • the bus system 5160 includes a power bus, a control bus, and a status signal bus in addition to a data bus. However, for clear description, various buses are marked as the bus system 5160 in the figure.
  • the baseband circuit 5130 is connected to the radio frequency circuit 5140, and the radio frequency circuit 5140 is connected to the antenna 5150.
  • the processor 5110 may be used to control the terminal device, to execute the processing performed by the terminal device in the above-mentioned embodiment, and to execute the processing procedure related to the terminal device in the above-mentioned method embodiment and/or used in the technology described in this application. In other processes, you can also run the operating system, manage the bus, and can execute programs or instructions stored in the memory.
  • the baseband circuit 5130, the radio frequency circuit 5140, and the antenna 5150 can be used to support the sending and receiving of information between the terminal device and the network device involved in the foregoing embodiment, so as to support wireless communication between the terminal device and the network device.
  • the main information block sent from the network device is received via the antenna 5150, filtered, amplified, down-converted, and digitized by the radio frequency circuit 5140, and then decoded by the baseband circuit 5130, and after the baseband processing such as unpacking data according to the protocol ,
  • the processor 5110 performs processing to restore the signaling information sent by the network device; in another example, the uplink data of the terminal device can be processed by the processor 5110, and the baseband circuit 5130 performs baseband processing such as protocol encapsulation and encoding, and further
  • the radio frequency circuit 5140 performs radio frequency processing such as analog conversion, filtering, amplification, and up-conversion, and then transmits it through the antenna 5150.
  • the memory 5120 may be used to store program codes and data of the site, and the memory 5120 may be the storage module 5030 in FIG. 5. It is understandable that the baseband circuit 5130, the radio frequency circuit 5140, and the antenna 5150 can also be used to support the terminal device to communicate with other network entities, for example, to support the terminal device to communicate with the network element on the core network side.
  • the memory 5120 in FIG. 6 is shown as being separated from the processor 5110. However, those skilled in the art can easily understand that the memory 5120 or any part thereof may be located outside the communication device 5100.
  • the memory 5120 may include a transmission line and/or a computer product separated from the wireless node, and these media may be accessed by the processor 5110 through the bus interface 5160.
  • the memory 5120 or any part thereof may be integrated into the processor 5110, for example, may be a cache and/or a general register.
  • FIG. 6 only shows a simplified design of the terminal device.
  • the terminal device may include any number of transmitters, receivers, processors, memories, etc., and all terminal devices that can implement the application are within the protection scope of the application.
  • the communication device can also be implemented using the following: one or more field-programmable gate arrays (FPGA), programmable logic devices (PLD), control Any combination of devices, state machines, gate logic, discrete hardware components, any other suitable circuits, or circuits capable of performing the various functions described throughout this application.
  • FPGA field-programmable gate arrays
  • PLD programmable logic devices
  • control Any combination of devices, state machines, gate logic, discrete hardware components, any other suitable circuits, or circuits capable of performing the various functions described throughout this application.
  • an embodiment of the present application further provides a computer storage medium, which can store a program instruction for indicating any of the above methods, so that the processor executes the program instruction to implement the above method embodiment It involves the methods and functions of terminal equipment.
  • FIG. 7 shows a schematic block diagram of a communication device 5200 according to an embodiment of the present application.
  • the apparatus 5200 in the embodiment of the present application may be the network device in the foregoing method embodiment, or may be one or more chips in the network device.
  • the apparatus 5200 may be used to perform part or all of the functions of the network device in the foregoing method embodiment.
  • the device 5200 may include a processing module 5210 and a transceiver module 5220.
  • the device 5200 may further include a storage module 5230.
  • the transceiver module 5220 can be used for a network device to send the main information block of step 101 in the foregoing method embodiment and send the downlink control information in step 103;
  • the device 5200 may also be configured as a general-purpose processing system, for example, commonly referred to as a chip.
  • the processing module 5210 may include: one or more processors that provide processing functions; the transceiver module may be, for example, an input/output interface, a tube
  • the input/output interface can be used to exchange information between the chip system and the outside world.
  • the input/output interface can output the main information block to other modules outside the chip for processing.
  • the one or more processors can execute computer-executable instructions stored in the storage module to implement the functions of the network device in the foregoing method embodiments.
  • the storage module 5230 optionally included in the apparatus 5200 may be a storage unit in the chip, such as a register, a cache, etc., and the storage module 5230 may also be a storage unit located outside the chip in the network device.
  • ROM read-only memory
  • RAM random access memory
  • FIG. 8 shows a schematic block diagram of another communication device 5300 according to an embodiment of the present application.
  • the apparatus 5300 in the embodiment of the present application may be the network device in the foregoing method embodiment, and the apparatus 5300 may be used to perform part or all of the functions of the network device in the foregoing method embodiment.
  • the device 5300 may include a processor 5310, a baseband circuit 5330, a radio frequency circuit 5340, and an antenna 5350.
  • the device 5300 may further include a memory 5320.
  • the processor 5310, the memory 5320, and the baseband circuit 5330 of the device 5300 are coupled together via a bus 5360.
  • the bus system 5360 includes a power bus, a control bus, and a status signal bus in addition to a data bus. However, for clear description, various buses are marked as the bus system 5360 in the figure.
  • the baseband circuit 5330 is connected to the radio frequency circuit 5340, and the radio frequency circuit 5340 is connected to the antenna 5350.
  • the processor 5310 can be used to control the network device, to perform the processing performed by the network device in the foregoing embodiment, and to perform the processing procedure related to the network device in the foregoing method embodiment and/or be used in the technology described in this application. In other processes, you can also run the operating system, manage the bus, and can execute programs or instructions stored in the memory.
  • the baseband circuit 5330, the radio frequency circuit 5340, and the antenna 5350 can be used to support the sending and receiving of information between the network device and the terminal device involved in the foregoing embodiment, so as to support wireless communication between the network device and the terminal device.
  • the main information block of the network device can be processed by the processor 5310, and the baseband circuit 5330 performs baseband processing such as protocol packaging and encoding, and then the radio frequency circuit 5340 performs analog conversion, filtering, amplification, and upconversion after radio frequency processing.
  • the memory 5320 may be used to store program codes and data of the network device, and the memory 5320 may be the storage module 5230 in FIG. 7. It can be understood that the baseband circuit 5330, the radio frequency circuit 5340, and the antenna 5350 can also be used to support the network device to communicate with other network entities, for example, to support the network device to communicate with other network devices.
  • FIG. 8 only shows a simplified design of the network device.
  • the network device may include any number of transmitters, receivers, processors, memories, etc., and all network devices that can implement the present application are within the protection scope of the embodiments of the present application.
  • the communication device can also be implemented using the following: one or more field-programmable gate arrays (FPGA), programmable logic devices (PLD), control Any combination of devices, state machines, gate logic, discrete hardware components, any other suitable circuits, or circuits capable of performing the various functions described throughout this application.
  • FPGA field-programmable gate arrays
  • PLD programmable logic devices
  • an embodiment of the present application also provides a computer storage medium, which can store program instructions for indicating any of the above methods, so that the processor executes the program instructions to implement the above method embodiments. Involving the methods and functions of network devices.
  • the processors involved in the foregoing device 5100 and device 5300 may be general-purpose processors, such as general-purpose central processing units (CPU), network processors (Network Processor, NP), microprocessors, etc., or may also be application-specific integrated circuits ( application-specific integrated circBIt, ASIC for short), or one or more integrated circuits used to control the execution of the program of this application. It may also be a digital signal processor (Digital Signal Processor, DSP for short), a Field-Programmable Gate Array (FPGA for short) or other programmable logic devices, discrete gates or transistor logic devices, or discrete hardware components.
  • DSP Digital Signal Processor
  • FPGA Field-Programmable Gate Array
  • the controller/processor may also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the processor usually executes logic and arithmetic operations based on program instructions stored in the memory.
  • the memory involved in the foregoing device 5100 and device 5300 may also store an operating system and other application programs.
  • the program may include program code, and the program code includes computer operation instructions.
  • the foregoing memory may be a read-only memory (read-only memory, ROM for short), other types of static storage devices that can store static information and instructions, random access memory (RAM for short), and storage Other types of dynamic storage devices for information and instructions, disk storage, etc.
  • the memory can be a combination of the storage types described above.
  • the foregoing computer-readable storage medium/memory may be in the processor, or external to the processor, or distributed on multiple entities including the processor or processing circuit.
  • the foregoing computer-readable storage medium/memory may be embodied in a computer program product.
  • the computer program product may include a computer-readable medium in packaging materials.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk).

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Abstract

一种确定用于指示控制信息的方法和装置。用于指示控制信息的方法包括：接收网络设备发送的第一信息，所述第一信息用于指示控制信息资源集CORESET 0在时域上所占符号个数和在频域上的第一偏移量（101）；根据所述第一信息和预定的子载波间隔确定所述CORESET 0的时频资源位置（102）；在所述CORESET 0的时频资源位置接收下行控制信息（103）。该方法可以提升PBCH的资源使用效率。

Description

用于指示控制信息的方法和装置 技术领域
本申请涉及通信技术，尤其涉及一种用于指示控制信息的方法和装置。
背景技术
新无线(New Radio，NR)标准中定义了同步脉冲序列集(SS burst set)，其主要用于用户设备(User Equipment，UE)进行初始接入、系统消息更新、或波束(beam)管理。每个SS burst set的持续时间为5ms，周期可以为5、10、20、40、80、或100ms。SS burst set由若干个同步信号块(Synchronization signal block，SSB)组成，当载波频率小于6GHz时，每个SS burst set最多包含8个SSB，当载波频率大于6GHz时，每个SS burst set最多包含64个SSB。
如图1所示，每个SSB持续4个符号(symbol)，依次对应主同步信号(primary synchronization signal，PSS)、物理广播信道(physical broadcast channel，PBCH)、辅同步信号(secondary synchronization signal，SSS)以及PBCH。每个SSB可以对应于不同的beam方向，保证小区覆盖。
然而，通过PBCH发送的物理下行控制信道的配置信息占用的资源开销较大。
发明内容
本申请提供一种用于指示控制信息的方法和装置，以减少PBCH中用于指示CORESET 0的时域资源位置的信息的资源开销。
第一方面，本申请实施例提供一种用于指示控制信息的方法，该方法可以包括：接收网络设备发送的第一信息，该第一信息用于指示控制信息资源集CORESET 0在时域上所占符号个数和在频域上的第一偏移量。根据该第一信息和预定的子载波间隔确定该CORESET 0的时频资源位置。在该CORESET 0的时频资源位置接收下行控制信息。
在本申请的方案中，网络设备发送的第一信息相较于现有技术中的用于指示CORESET 0的时域资源位置的信息，具有较少的比特位，可以提升PBCH的资源使用效率。
在一种可能的设计中，当一个时隙支持一个或多个同步信号块SSB和CORESET 0发送时，该第一信息还用于指示每一个时隙内的CORESET 0的个数。
在一种可能的设计中，该第一偏移量用于指示该CORESET 0对应的第一资源块RB的序号，该第一RB位于该第一信息对应的同步信号块所在的部分带宽中，该第一偏移量为X1、X2、X3、或X4中任意一项，X1、X2、X3和X4为整数且不相等。
在一种可能的设计中，当所述预定的子载波间隔为15kHz或30kHz时，所述第一信息为四个比特。
在本申请的方案中，该第一偏移量为X1、X2、X3、或X4中任意一项，从而可以使用四个比特指示该第一偏移量，从而可以节省资源开销。
在一种可能的设计中，该第一偏移量用于指示该CORESET 0对应的第一资源块RB的序号，该第一RB位于该第一信息对应的同步信号块所在的部分带宽中，该第一偏移量为Y1、Y2、Y3、Y4、Y5、或Y6中的任意一项，Y1、Y2、Y3、Y4、Y5和Y6为整数且不相等。
在一种可能的设计中，当该预定的子载波间隔为15kHz时，该第一信息为五个比特。
在本申请的方案中，该第一偏移量为Y1、Y2、Y3、Y4、Y5、或Y6中的任意一项，从而可以使用五个比特指示该第一偏移量，从而可以节省资源开销。
在一种可能的设计中，该方法还可以包括接收网络设备发送的第二信息，该第二信息用于指示CORESET 0在频域上的第二偏移量，该第二偏移量用于指示该CORESET 0对应的第一RB中的子载波的序号，其中，该第二偏移量为0至11中任意一项，该CORESET 0的时频资源位置为根据所述第一信息和所述第二信息确定的。
在本申请的方案中，对于NR-U系统，该第二偏移量的取值范围为0-11，在主信息块中只需要4个比特来指示，相对于NR来说可以节省1个比特指示开销。
在一种可能的设计中，该第一信息对应的同步信号块所在的部分带宽与无线局域网的频段对齐，该同步信号块在该部分带宽的预设位置发送。
在一种可能的设计中，该方法还可以包括接收网络设备发送的第二信息，该第二信息用于指示至少一个参考信号，所述至少一个参考信号与所述同步信号块为准共址关系。
第二方面，本申请实施例提供一种用于指示控制信息的方法，该方法可以包括：向终端设备发送第一信息，该第一信息用于指示控制信息资源集CORESET 0在时域上所占符号个数和在频域上的第一偏移量，该第一信息为根据预定的子载波间隔确定的。在该CORESET 0的时频资源位置发送下行控制信息。
在一种可能的实现方式中，该方法还可以包括，向终端设备发送第二信息，该第二信息用于指示CORESET 0在频域上的第二偏移量，该第二偏移量用于指示该CORESET 0对应的第一RB中的子载波间隔的序号，其中，该第二偏移量为0至11中任意一项。
在一种可能的设计中，该第一信息对应的同步信号块所在的部分带宽与无线局域网的频段划分对齐，该同步信号块为在该部分带宽的预设位置发送的。
在一种可能的设计中，该方法还可以包括：向终端设备发送第二信息，该第二信息用于指示至少一个参考信号，该至少一个参考信号与该同步信号块为准共址关系。
第三方面，本申请实施例提供一种通信装置，该通信装置用于执行上述第一方面或第一方面的任一可能的设计中的用于指示控制信息的方法。具体地，该通信装置可以包括用于执行第一方面或第一方面的任一可能的设计中的用于指示控制信息的方法的模块。例如，可以包括收发模块和处理模块。该通信装置可以是终端设备。
第四方面，本申请实施例提供一种终端设备，该终端设备包括存储器和处理器，该存储器用于存储指令，该处理器用于执行该存储器存储的指令，并且对该存储器中存储的指令的执行使得该处理器执行第一方面或第一方面的任一可能的设计中的方法。
第五方面，本申请实施例提供一种计算机可读存储介质，其上存储有计算机程序， 所述程序被处理器执行时实现第一方面或第一方面的任一可能的设计中的方法。
第六方面，本申请实施例提供一种通信装置，该通信装置用于执行上述第二方面或第二方面的任一可能的设计中的通信方法。具体地，该通信装置可以包括用于执行第二方面或第二方面的任一可能的设计中的用于指示控制信息的方法的模块。例如，可以包括收发模块和处理模块。该通信装置可以是网络设备。
第七方面，本申请实施例提供一种网络设备，该网络设备包括存储器和处理器，该存储器用于存储指令，该处理器用于执行该存储器存储的指令，并且对该存储器中存储的指令的执行使得该处理器执行第二方面或第二方面的任一可能的设计中的方法。
第八方面提供一种计算机可读存储介质，其上存储有计算机程序，所述程序被处理器执行时实现第二方面或第二方面的任一可能的设计中的方法。
本申请的用于指示控制信息的方法和装置，通过网络设备向终端设备发送主信息块，该主信息块可以包括第一信息，该第一信息用于指示CORESET 0在时域上所占符号个数和在频域上的第一偏移量，终端设备根据该第一信息和预定的子载波间隔确定CORESET 0的时频资源位置，网络设备在CORESET 0的时频资源位置发送下行控制信息。本申请的第一信息相较于现有技术中的用于指示CORESET 0的时域资源位置的信息，具有较少的比特位，可以提升PBCH的资源使用效率。
附图说明
图1为SS burst set的构成示意图；
图2为本申请实施例的另一种应用场景的示意图；
图3为本申请实施例的一种用于指示控制信息的方法的流程图；
图4A为本申请实施例的一种SSB和对应的CORESET 0的示意图；
图4B为本申请实施例的另一种SSB和对应的CORESET 0的示意图；
图4C为本申请实施例的另一种SSB和对应的CORESET 0的示意图；
图4D为本申请实施例的另一种SSB和对应的CORESET 0的示意图；
图5为本申请实施例的一种通信装置5000的示意图；
图6为本申请实施例的另一种通信装置5100的示意图；
图7为本申请实施例的一种通信装置5200的示意图；
图8为本申请实施例的另一种通信装置5300的示意性框图；
图9为本申请实施例的发送的SSB和SSB候选位置示意图。
具体实施方式
本申请的术语“第一”、“第二”等仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元。方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
应当理解，在本申请中，“至少一个(项)”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，用于描述关联对象的关联关系，表示可以存在三种关系， 例如，“A和/或B”可以表示：只存在A，只存在B以及同时存在A和B三种情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”，其中a，b，c可以是单个，也可以是多个。
本申请所涉及的网络设备指，可以和终端设备进行通信的设备。网络设备可以是接入网设备、中继站或接入点。例如，网络设备可以是全球移动通信系统(Global System for Mobile Communications，GSM)或码分多址(Code Division Multiple Access，CDMA)网络中的基站收发信台(Base Transceiver Station，BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，WCDMA)中的基站(NodeB,NB)，还可以是长期演进(Long Term Evolution，LTE)中的演进基站(Evolutional NodeB，eNB或eNodeB)。网络设备还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器。网络设备还可以是5G网络中的网络设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备。网络设备还可以是可穿戴设备或车载设备等。
本申请所涉及的终端设备指，具有通信功能的通信装置。例如，可以是无线通信设备、物联网(Internet of Things，IoT)设备、可穿戴设备或车载设备、移动终端、客户终端设备(Customer Premise Equipment，CPE)等。该移动终端也可以称为用户设备(User Equipment，简称：UE)、接入终端、用户单元、用户站、移动站、移动台、用户终端、终端、无线通信设备、用户代理或用户装置。该移动终端可以是智能手机、蜂窝电话、无绳电话、平板电脑、个人数字处理(Personal Digital Assistant，简称：PDA)设备、具有无线通信功能的IoT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、车联网场景下的设备，5G网络中的终端设备或者未来演进的PLMN网络中的终端设备等。
示例性的，本申请实施例的一种应用场景，该应用场景可以包括终端设备和网络设备。其中，该终端设备可以是上述任一形式的终端设备，相应的，该网络设备可以是上述任一形式的网络设备。该终端设备可以通过本申请的用于指示控制信息的方法，接收网络设备发送的第一信息，该第一信息用于指示控制信息资源集0(ControlResourceSet 0，CORESET 0)在时域上所占符号个数和在频域上的第一偏移量，根据该第一信息和预定的子载波间隔确定CORESET 0的时域资源的位置，在该CORESET 0的时域资源位置接收网络设备发送的下行控制信息(Downlink control information，DCI)，进而获得后续进行随机接入的资源配置信息或进行RMSI更新。本申请的第一信息相较于现有技术中的用于指示CORESET 0的时域资源位置的信息，具有较少的比特位，可以提升PBCH的资源使用效率。其具体解释说明可以参见下述实施例的解释说明。
本申请所涉及的控制信息资源集0(ControlResourceSet 0，CORESET 0)也可以称之为剩余系统信息控制信息资源集(Remaining system information CORESET，RMSI CORESET)。其具有相同的含义，即用于承载类型0的物理下行控制信道(type-0  PDCCH)。
示例性的，图2为本申请实施例的另一种应用场景的示意图，如图2所示，该应用场景以一个基站(base station，BS)和六个UE为例进行举例说明，其中，六个UE分别为UE1、UE2、UE3、UE4、UE5和UE6，例如，基站可以向UE1～UE6发送该第一信息，UE1～UE6可以根据第一信息进行随机接入或进行RMSI更新，基站还可以接收UE1～UE6发送的上行数据。此外，UE4～UE6也可以组成一个通信系统。在该通信系统中，BS可以发送下行信息给UE1、UE2、UE3和UE5，UE5也可以发送下行信息给UE4和UE6。
需要说明的是，本实施例以一个BS、单小区作为举例说明，本申请实施例并不以此作为限制。
图3为本申请实施例的一种用于指示控制信息的方法的流程图，本实施例的方法涉及终端设备和网络设备，如图3所示，本实施例的方法可以包括：
步骤101、网络设备向终端设备发送第一信息。
终端设备接收网络设备发送的第一信息。该第一信息可以承载于主信息块(master information block，MIB)中。该第一信息用于指示CORESET 0在时域上所占符号个数和在频域上的第一偏移量。
例如，在初始接入阶段，终端设备通过检测同步信号块，获取同步信号块中的PBCH，该PBCH可以携带该MIB，终端设备通过解析MIB获取该第一信息。换句话说，该MIB承载于该PBCH中。该第一信息可以用于指示CORESET 0在时域上所占符号个数和在频域上的第一偏移量，该CORESET 0在时域上所占符号个数，例如可以是1或2，该第一偏移量可以是资源块(Resource Block，RB)粒度的偏移量，其可以是CORESET 0在频域上的起始位置与同步信号块在频域上的起始位置之间的偏移值，或者，可以是CORESET 0在频域上的起始位置与同步信号块所在的部分带宽(BandWidth Part，BWP)在频域上的起始位置之间的偏移值，或者，可以是CORESET 0在频域上的终止位置与同步信号块所在的BWP在频域上的终止位置之间的偏移值。其中，该CORESET 0在频域上的起始位置可以是该CORESET 0在频域上所占的RB资源中RB索引(或序号)最小的RB的位置。该同步信号块在频域上的起始位置可以是该同步信号块在频域上所占的RB资源中RB索引最小的RB的位置。该CORESET 0在频域上的终止位置可以是该CORESET 0在频域上所占的RB资源中RB索引最大的RB的位置。同步信号块所在的BWP在频域上的终止位置可以是该同步信号块所在的BWP在频域上所占的RB资源中RB索引最大的RB的位置。
示例性的，以上述图2所示的应用场景进行举例说明，BS可以发送同步信号块，UE1、UE2和UE3分别检测BS发送的同步信号块，该同步信号块中携带该第一信息。
步骤102、终端设备根据该第一信息和预定的子载波间隔确定CORESET 0的位置。具体地，终端设备确定CORESET 0的时频资源(time/frequency resource)位置。
一种示例，该预定的子载波间隔(Subcarrier space，SCS)可以是15kHz或30kHz。
另一种示例，终端设备可以根据检测到的同步信号块的子载波间隔确定该预设的子载波间隔，举例而言，终端设备检测到的SSB的子载波间隔为30kHz，则终端设备 可以确定该预设的子载波间隔为30kHz。终端设备检测到的SSB的子载波间隔为15kHz，则终端设备可以确定该预设的子载波间隔为15kHz。
终端设备可以根据该第一信息和该预定的子载波间隔确定CORESET 0在时域上所占符号个数和在频域上的第一偏移量。该第一信息可以不指示CORESET 0的频域资源的RB个数，终端设备可以根据该预定的子载波间隔确定CORESET 0的频域资源的RB个数，本申请实施例的SSB与CORESET 0的子载波间隔相同。例如，当预定的子载波间隔为30kHz时，该CORESET 0的频域资源的RB个数为48，当预定的子载波间隔为15kHz时，该CORESET 0的频域资源的RB个数为96。
本申请的用于指示控制信息的方法可以应用于非授权频谱的NR(NR in Unlicensed Spectrum，NR-U)。对于NR-U，其SSB和CORESET 0的复用模式通常为时分复用，所以，该第一信息也可以不指示SSB和CORESET 0的复用模式。
示例性的，对于NR-U，SSB在时域上的起始位置(例如，在时域上的起始符号)与对应的CORESET 0在时域上相邻或间隔一个符号，CORESET 0在一个时隙(slot)内的起始符号位置固定，并且CORESET 0在时域上所占符号个数为1个或2个。当获取了CORESET 0的起始位置时，终端设备可以根据CORESET 0在时域上所占符号个数确定CORESET 0的时域资源位置。以SSB所在的BWP为20MHz为例，终端设备可以根据该CORESET 0在频域上的第一偏移量和CORESET 0的频域资源的RB个数，确定CORESET 0的频域资源位置。终端设备可以根据该CORESET 0的时域资源位置和该频域资源位置确定该CORESET 0的时频资源位置。
通过本申请实施例提供的方法，第一信息不需要指示CORESET 0的子载波间隔、CORESET 0的在频域上的RB个数以及SSB和CORESET 0的复用模式等信息，所以相较于现有技术中的用于指示CORESET 0的时域资源位置的信息，具有较少的比特位，可以减少对PBCH的资源占用，所节省的资源可以用于指示其他信息，从而提升PBCH的资源使用效率。
步骤103、网络设备在CORESET 0的时频资源位置发送下行控制信息。换句话说，下行控制信息承载于CORESET 0。
终端设备在CORESET 0的时频资源位置接收下行控制信息。终端设备可以根据该下行控制信息获取后续随机接入的资源配置信息，以根据随机接入的资源配置信息进行初始随机接入。或者，终端设备可以根据该下行控制信息更新RMSI。
本实施例，通过网络设备向终端设备发送第一信息，该第一信息用于指示CORESET 0在时域上所占符号个数和在频域上的第一偏移量，终端设备根据该第一信息和预定的子载波间隔确定CORESET 0的时频资源位置，网络设备在CORESET 0的时频资源位置发送下行控制信息，终端设备可以根据该下行控制信息获取后续随机接入的资源配置信息，以根据随机接入的资源配置信息进行初始随机接入，或者根据下行控制信息更新RMSI。本申请的第一信息相较于现有技术中的用于指示CORESET 0的时域资源位置的信息，具有较少的比特位，可以提升PBCH的资源使用效率。
在一些实施例中，当一个时隙支持一个或多个SSB和CORESET 0发送时，该第一信息还可以用于指示每一个时隙内的CORESET 0的个数，例如，每一个时隙内的 CORESET 0的个数为1个或2个。
对于NR-U中的SSB，其CORESET 0的时域资源位置可以是如图4A至图4D中任意一种，SSB和该SSB对应的CORESET 0相邻或间隔一个符号，且CORESET 0在时隙内的起始符号位置固定，CORESET 0的持续符号的个数为1个或2个符号。例如，如图4A至图4C中任意一种，每个SSB和该SSB对应的CORESET 0占用半个时隙(slot)，即一个时隙内的CORESET 0的个数为2个。其中，如图4A所示，时隙设置有两个CORESET 0，分别对应不同的SSB，该两个CORESET 0均占用2个符号，第一个CORESET 0占用的符号为符号#0和符号#1，第二CORESET 0占用的符号为符号#7和符号#8。如图4B所示，时隙设置有两个CORESET 0，分别对应不同的SSB，该两个CORESET 0均占用2个符号，第一个CORESET 0占用的符号为符号#0和符号#1，第二CORESET 0占用的符号为符号#6和符号#7。如图4C所示，时隙设置有两个CORESET 0，分别对应不同的SSB，第一个CORESET 0占用的符号为符号#0和符号#1，第二CORESET 0占用的符号为符号#7。如图4D所示，时隙里设置有一个CORESET0，即一个时隙内的CORESET 0的个数为1个，该CORESET 0占用的符号为符号#1。
通过图4A至图4D可见，对于NR-U，SSB在时域上的起始位置和对应的CORESET0相邻或间隔一个符号，且CORESET 0在时隙内起始符号位置固定，且持续符号数为1或是2个符号。
在一些实施例中，上述第一偏移量用于指示CORESET 0对应的第一资源块RB的序号，该第一RB可以是CORESET 0在频域上所占的RB资源中RB索引(或序号)最小的RB，该第一RB位于该第一信息(第一信息所在的主信息块)对应的同步信号块所在的部分带宽中，该频域资源的第一偏移量可以为X1、X2、X3、或X4中任意一项，X1、X2、X3和X4为整数且不相等。例如，X1＝0，X2＝1，X3＝2，X＝4。
由于NR-U初始接入带宽默认为20MHz，CORESET 0在频域上的位置也相对固定。以预定的子载波间隔为30kHz为例，初始接入带宽(20MHz)占用51个RB，而当预定的子载波间隔为30kHz时，该CORESET 0的频域资源的RB个数为48。以该第一偏移量为CORESET 0在频域上的起始位置与同步信号块所在的BWP在频域上的起始位置之间的偏移值为例，该第一偏移量可以为0、1、2或3。终端设备根据该第一偏移量可以确定CORESET 0的频域资源位置，例如，该同步信号块所在的BWP所占用的51个RB的序号为0至50，假设该第一偏移量为1，则终端设备可以确定CORESET 0的频域资源位置为序号为1至48的RB。
以该第一偏移量为CORESET 0在频域上的起始位置与同步信号块在频域上的起始位置之间的偏移值为例，该第一偏移量可以为-17、-18、-19或-20。终端设备根据该第一偏移量可以确定CORESET 0的频域资源位置，例如，该同步信号块所在的BWP所占用的51个RB的序号为0至50，假设同步信号块固定在序号为20至49的RB上发送，该第一偏移量为-18，则终端设备可以确定CORESET 0的频域资源位置为序号为2至49的RB。
在一些实施例中，当预定的子载波间隔为30kHz时，该第一信息可以是四个比特。
一种可实现方式，该第一信息可以对应一个索引(index)，不同的索引(index)可以对应不同的CORESET 0在时域上所占符号个数和在频域上的第一偏移量，举例 而言，索引(index)与不同的CORESET 0在时域上所占符号个数和在频域上的第一偏移量等参数的对应关系可以如下表1。
表1预设的子载波间隔＝30kHz CORESET 0配置参数表
Figure PCTCN2019116834-appb-000001
如表1所示，表中的第一列为索引(index)，第二列为SSB与CORESET 0复用模式，第三列为CORESET 0在频域上的RB个数，第四列为CORESET 0在时域上的符号个数，第五列为CORESET 0在频域上的第一偏移量，第六列为每个时隙内的CORESET 0的个数，每一行为不同索引对应的上述各个参数(SSB与CORESET 0复用模式、CORESET 0的符号个数等)的配置。
举例而言，该第一信息为0001，则该第一信息对应的索引为1，从而可以确定SSB与CORESET 0复用模式为模式1、CORESET 0在频域上的RB个数为48、CORESET 0在时域上的符号个数为1、CORESET 0的第一偏移量为X2、每个时隙内的CORESET 0的个数为1，从而根据各个参数的配置确定CORESET 0的时频资源位置。
需要说明的是，上述表1为一种示例性说明，其还可以是其他具体形式，例如，该表1可以不包括第二列、第三列或第六列，再例如，该表1的各个行的顺序可以是其他顺序，本申请实施例不以表1的具体形式作为限制。
另一种可实现方式，该第一信息的不同比特位对应不同的参数配置，例如，该第一信息的四个比特中第一个比特用于指示CORESET 0在时域上所占符号个数，第二 个和第三个比特用于指示CORESET 0在频域上的第一偏移量，第四个比特用于指示每个时隙内CORESET 0的个数。例如，第一个比特为0时，指示CORESET 0在时域上所占符号个数为1，第一个比特为1时，指示CORESET 0在时域上所占符号个数为2，第二个和第三个比特为00时，指示该第一偏移量为X1，第二个和第三个比特为01时，指示该第一偏移量为X2，第二个和第三个比特为10时，指示该第一偏移量为X3，第二个和第三个比特为11时，指示该第一偏移量为X4，第四个比特为0时，指示每个时隙内CORESET 0的个数为1，第四个比特为1时，指示每个时隙内CORESET 0的个数为2。举例而言，第一信息为0001时，可以确定CORESET 0在时域上所占符号个数为1、第一偏移量为X1、每个时隙内CORESET 0的个数为1，从而根据上述参数配置确定CORESET 0的时频资源位置。
本实施例，通过网络设备向终端设备发送第一信息，该第一信息用于指示CORESET 0在时域上所占符号个数和在频域上的第一偏移量，该第一信息为四个比特，终端设备根据该第一信息和预定的子载波间隔确定CORESET 0的时频资源位置，网络设备在CORESET 0的时频资源位置发送下行控制信息。本申请的第一信息相较于现有技术中的用于指示CORESET 0的时域资源位置的信息，具有较少的比特位，可以提升PBCH的资源使用效率。
现有技术中的用于指示CORESET 0的时域资源位置的信息通常为八个比特，本申请实施例的第一信息可以为四个比特，从而可以节省资源开销。
在一些实施例中，频域资源的第一偏移量用于指示CORESET 0对应的第一RB的序号，该第一RB位于第一信息(第一信息所在的主信息块)对应的同步信号块所在的部分带宽中，该频域资源的第一偏移量为Y1、Y2、Y3、Y4、Y5、或Y6中的任意一项，Y1、Y2、Y3、Y4、Y5和Y6为整数且不相等。例如，Y1＝0、Y2＝1、Y3＝2、Y4＝3、Y5＝4、Y6＝5。
由于NR-U初始接入带宽默认为20MHz，CORESET 0在频域上的位置也相对固定。以预定的子载波间隔为15kHz为例，初始接入带宽(20MHz)占用101个RB，而当预定的子载波间隔为15kHz时，该CORESET 0在频域上的RB个数为96。以该第一偏移量为CORESET 0在频域上的起始位置与同步信号块所在的BWP在频域上的起始位置之间的偏移值为例，该第一偏移量可以为0、1、2、3、4或5。终端设备根据该第一偏移量可以确定CORESET 0的频域资源位置，例如，该同步信号块所在的BWP所占用的101个RB的序号为0至100，假设该第一偏移量为1，则终端设备可以确定CORESET 0的频域资源位置为序号为1至96的RB。
在一些实施例中，当预定的子载波间隔为15kHz时，该第一信息为五个比特。
一种可实现方式，该第一信息可以对应一个索引(index)，不同的索引(index)可以对应不同的CORESET 0在时域上所占符号个数和在频域上的第一偏移量，举例而言，索引(index)与不同的CORESET 0在时域上所占符号个数和在频域上的第一偏移量等参数的对应关系可以如下表2。
表2预定的子载波间隔＝15kHz CORESET 0配置参数表
Figure PCTCN2019116834-appb-000002
如表2所示，表2中的各个列对应的配置与表1的各个列相同，此处不再赘述。表2与表1的区别在于，第一偏移量可以是六个取值中的一个，所以表2中有24个索引，每一个索引对应不同的各个参数(SSB与CORESET 0复用模式、CORESET 0的符号个数等)的配置。
举例而言，该第一信息为00001，则该第一信息对应的索引为1，从而可以确定SSB与CORESET 0复用模式为模式1、CORESET 0在频域上的RB个数为96、CORESET 0在时域上的符号个数为1、CORESET 0的频域资源的第一偏移量为Y2、每个时隙内的CORESET 0的个数为1，从而根据各个参数的配置确定CORESET 0的时频资源位置。
需要说明的是，上述表2为一种示例性说明，其还可以是其他具体形式，例如， 该表2可以不包括第二列、第三列或第六列，再例如，该表2的各个行的顺序可以是其他顺序，本申请实施例不以表2的具体形式作为限制。
当预定的子载波间隔为15kHz时，该第一信息也可以是四个比特。例如，为了降低第一信息的资源开销，该第一偏移量可以支持上述Y1、Y2、Y3、Y4、Y5、或Y6中任意四项，从而可以将第一信息降低为四个比特。当该第一偏移量支持上述Y1、Y2、Y3、Y4、Y5、或Y6中任意四项时，其参数配置表与表类似，其区别在于，CORESET 0的RB个数为96，第一偏移量为Y1、Y2、Y3、Y4、Y5、或Y6中任意四项，在一些实施例中，Y1、Y2、Y3、Y4、Y5、或Y6中任意四项的取值可以等于X1、X2、X3、X4的取值。再例如，当每一个时隙内的CORESET 0的个数固定为2个时，该第一信息也可以为四个比特。
本实施例，通过网络设备向终端设备发送第一信息，该第一信息用于指示CORESET 0在时域上所占符号个数和在频域上的第一偏移量，该第一信息为四个比特或五个比特，终端设备根据该第一信息和预定的子载波间隔确定CORESET 0的时频资源位置，网络设备在CORESET 0的时频资源位置发送下行控制信息。本申请的第一信息相较于现有技术中的用于指示CORESET 0的时域资源位置的信息，具有较少的比特位，可以提升PBCH的资源使用效率。
现有技术中的用于指示CORESET 0的时域资源位置的信息通常为八个比特，本申请实施例的第一信息可以为四个比特或五个比特，从而可以节省资源开销。
在一些实施例中，本申请实施例的终端设备还可以接收网络设备发送的第二信息。换言之，上述主信息块还可以包括第二信息。该第二信息用于指示CORESET 0在频域上的第二偏移量，该第二偏移量用于指示CORESET 0对应的第一RB中的子载波的序号。该第一RB中的子载波的序号可以是CORESET 0在频域上所占的RB资源中RB索引(或序号)最小的RB中子载波序号最小的序号，也可以称之为第一RB中的子载波的起始位置。其中，该第二偏移量为0至11中任意一项，该CORESET 0的时频资源位置为根据该第一信息和该第二信息确定的。该第二偏移量可以是子载波粒度的偏移量。该第二信息可以是主信息块中的SSB的子载波偏移值(ssb-subcarrieroffset)。
示例性的，当NR-U的20MHz初始接入信道划分与现有无线局域网(WiFi)通用标准的频段划分不同时，SSB的频域发送位置可以不固定，终端设备可以根据第二信息和下述公式(1)或公式(2)确定最低载波所在物理资源块(PRB)的最低载波频率，进而根据上述第一信息确定该SSB所在20MHz带宽中CORESET 0的时频资源位置，即可以确定CORESET 0对应的第一RB的序号和该第一RB中子载波的序号。其中，当预设的子载波间隔为30kHz时，使用公式(1)。当预设的子载波间隔为15kHz时，使用公式(2)。该最低载波频率可以是所占资源的子载波的起始位置。
SSB最低载波所在PRB的最低载波频率＝SSB最低载波的频率-K_ssb*30kHz   (1)
SSB最低载波所在PRB的最低载波频率＝SSB最低载波的频率-K_ssb*15kHz   (2)
由于SSB和对应CORESET 0的子载波间隔相同，因此当终端设备盲检到SSB，且确认其子载波间隔为30KHz时，上述偏移值的取值范围是0-11个子载波，因此只需要4个比特指示开销，来指示K_ssb，该K_ssb为SSB的子载波偏移值 (ssb-subcarrieroffset)。当终端设备盲检到SSB且其子载波间隔为15kHz时，上述偏移值的取值范围也是0-11个子载波，因此也只需要4个比特指示开销，来指示K_ssb。
由此可见，对于NR-U系统，ssb-subcarrieroffset的取值范围为0-11，在主信息块中只需要4个比特来指示，相对于NR来说可以节省1个比特指示开销。
在一些实施例中，上述第一信息(第一信息所在的主信息块)对应的同步信号块所在的部分带宽与无线局域网的频段对齐(align)，该同步信号块在部分带宽的预设位置发送。
示例性的，由于NR-U在5GHz频段需要考虑与无线局域网(WiFi)的共存。因此，一种可实现方式为按照与无线局域网(WiFi)相同的频段划分信道，并进行数据/控制信息传输。例如，可以在每个20MHz频带上固定的位置发送SSB。终端设备检测到该SSB时，便可以确定该SSB在频域上的起始位置与所在20MHz带宽在频域上述起始位置之间的偏移值。由于SSB频域位置固定，则无需额外指示，主信息块中的用于指示ssb-subcarrieroffset的信息可作其它用途，例如，上述第二信息可以用于指示至少一个参考信号，该至少一个参考信号与同步信号块为准共址(Quasi-Co-Location，QCL)关系，从而完成终端设备接收侧波束赋形或接收处理过程的辅助，提升随机接入效率。该第二信息还可以指示寻呼是否发送、解调参考信号单元(DemodulationReference Sgnal unit，DRS unit)的长度等，本申请实施例不一一举例说明。
本实施例，当NR-U信道划分与无线局域网通用标准相同时，该第二偏移量可以根据检测到SSB的频点和对应的频段确定，从而无需在主信息块中指示，可以减少指示开销。
在另一实施例中，网络设备还向终端设备发送第三信息，该第三信息用于指示控制资源集0(CORESET0)的配置和第0类PDCCH(type0-PDCCH)公共搜索空间(searchSpaceZero)的配置。该第三信息携带于SSB的MIB信息中，参照表3，该第三信息为表中的index值。当SSB和CORESET0采用时分复用(time division multiplexing，TDM)方式时，终端设备可以根据表3中的参数M，O和SSB的第一符号索引(first symbol index)，以及SSB索引(index)i获得与SSB i关联的type0-PDCCH公共搜索空间的检测位置，其中M为一个参数，和每一个slot中Type0-PDCCH的公共搜索空间的数量有关。终端设备可以在获得的检测位置上搜索PDCCH。表3是标准预先规定的，或者由网络设备发送给终端设备。
以下进行进一步的描述，与SSB i关联的type-0 PDCCH公共搜索空间为系统帧号(system frame number，SFN)为SFN C的帧内从时隙(slot)n 0开始的连续两个slot，其中slot n 0满足以下规则：
Figure PCTCN2019116834-appb-000003
其中，
Figure PCTCN2019116834-appb-000004
表示一个系统帧中所包含的slot的数量，不同的子载波间隔中，系统帧中所包含的slot的数量不同，例如，若子载波间隔为15kHz时，一个系统帧包括10个slot；若子载波间隔为30kHz时，一个系统帧包括20个slot。μ 与子载波间隔有关，例如，若子载波间隔为15kHz时，μ＝0；若子载波间隔为30kHz时，μ＝1。
系统帧号SFN C满足以下规则：
若
Figure PCTCN2019116834-appb-000005
SFN Cmod2＝0，在这种情况下，SFN C为偶数；
若
Figure PCTCN2019116834-appb-000006
SFN Cmod2＝1，在这种情况下，SFN C为奇数。
表3:Parameters for PDCCH monitoring occasions for Type0-PDCCH CSS set-SS/PBCH block and CORESET multiplexing pattern 1 and FR1
Figure PCTCN2019116834-appb-000007
其中，Number of search space sets per slot表示每个slot中搜索空间集(search space set)的数量。
在一个实施例中，在searchSpaceZero包含表4的表项，以增加网络设备发送DRS的灵活度。表4中对应O＝10和O＝15的配置下，网络设备在SFN C为奇数的帧发送DRS，也可以将Type0-PDCCH公共搜索空间集(common search space set，CSS set)配置到和与Type0-PDCCH CSS set关联SSB相同的slot中。当M＝1/2，Number of search space sets per slot为1时，配置允许终端设备在1个slot值检测一次Type-0 PDCCH CSS set，同时将Type0-PDCCH CSS set配置到和关联SSB相同的slot中。实际使用时还可能仅包含表4中的子集。这些表项可以加入到已有的表格中，例如表3，也可以取代现有标准中的表3
表4:Parameters for PDCCH monitoring occasions for Type0-PDCCH CSS set-SS/PBCH block and CORESET multiplexing pattern 1 and FR1
Figure PCTCN2019116834-appb-000008
其中，if i is odd表示SSB的index为奇数的情况，if i is even表示SSB的index为偶数的情况。表格中First symbol index中包含{6,if i is odd}，{7,if i is odd}的配置，允许终端设备可以在与Type0-PDCCH CSS set关联的奇数SSB同一个子帧的符号6或符号7开始检测Type0-PDCCH CSS set，这样gNB就可以使用相同beam连续发送Type0-PDCCH和SSB，避免了波束在短时间内连续切换。其中，
Figure PCTCN2019116834-appb-000009
表示CORESET0所占用的符号数，例如一个时隙内CORESET0所占的符号数。
以网络设备发送8个SSB，且与每个SSB对应的Type0-PDCCH和RMSI PDSCH持续1个slot为例，网络设备可以采用以下图9的方式发送SSB以及其对应的Type0-PDCCH和RMSI PDSCH。在slot1～4分别发送的SSB，该4个SSB选取位于slot前半部分的SSB候选位置(candidate position)进行发送(或者偶数SSB位置)，SSB候选位置占用符号2,3,4,5。在slot5～8分别发送的SSB，该4个SSB选取位于slot后半部分的SSB候选位置进行发送(或者奇数SSB位置)，SSB候选位置占用符号9,10,11,12(图未示)或者8,9,10,11。终端设备会在SSB所在的slot的前几个符号(可以为符号0，或者符号0,1)检测与该SSB对应的Type0-PDCCH。图9中标有X/Y的位置表示DRS传输窗口中可用于传输SSB的SSB候选位置，其中在图9所示的实施例中，X表示在该SSB候选位置传输的SSB中PBCH DMRS序列的索引(PBCH DMRS sequence index)，X的取值可以为0,1,2,…,7；Y表示在该SSB候选位置传输的PBCH负载(PBCH payload)中承载的指示信息，Y的取值可以为0,1,2。网络设备在SSB中PBCH携带的MIB中，可以指示终端设备如上表3中index值，换句话说，该第三信息可以为表4中的index，第三信息的值为index的值。示例性地，网络设备可以指示终端设备采用index＝0,4,8,12所对应的配置，则终端设备可以根据index＝0,4,8,12所对应的配置进行PDCCH的检索。终端设备可以从PBCH DMRS sequence index和PBCH  payload中获得SSB的序号，根据所检测到的多个SSB中PBCH DMRS序列的序号，获得所检测到的不同SSB之间具有准共址(quasi-colocation，QCL)关系。如果不允许位于后半slot的SSB关联从符号0开始的Type0-PDCCH CSS set，则无法支持在DRS中发送具有8个不同QCL假设的SSB，而且与SSB关联的Type0-PDCCH和RMSI-PDSCH占用整个slot，从而会影响系统的覆盖，或者增加对于周边用户的干扰。通过本申请提出的配置，可以解决该技术问题。
在又一个实施方式中，针对DRS最小发送周期小于20ms时，本申请提出了一种配置。当DRS最小发送周期小于20ms时，searchSpaceZero可以采用下表5的配置：
表5:Parameters for PDCCH monitoring occasions for Type0-PDCCH CSS set-SS/PBCH block and CORESET multiplexing pattern 1 and FR1
Figure PCTCN2019116834-appb-000010
从而，即使当DRS发送周期小于20ms时，也能支持Type0-PDCCH CSS set配置到和关联SSB相同的slot，避免了无法使用M和O的方式来指示检测Type0-PDCCH CSS set所在的slot和系统帧。SFC C表示Type0-PDCCH公共搜索空间集所在的系统帧，SFN ssb，i与Type0-PDCCH公共搜索空间集关联SSB所在的系统帧。SFC C＝SFN ssb，i表示Type0-PDCCH公共搜索空间集所在的系统帧和与Type0-PDCCH公共搜索空间集关联SSB所在的系统帧为同一个系统帧。n c表示Type0-PDCCH公共搜索空间集所在的系统帧中的时隙，n SSB，i与Type0-PDCCH公共搜索空间集关联SSB所在的系统帧中的时隙n C＝n SSB,i表示Type0-PDCCH公共搜索空间集所在的系统帧中的时隙和与Type0-PDCCH公共搜索空间集关联SSB所在的系统帧中的时隙为同一个时隙。其中，if i is odd表示SSB的index为奇数的情况，if i is even表示SSB的index为偶数的情况。
以下先对本申请中涉及的同步信号栅格进行解释如下：
同步信号栅格(synchronization raster)表示的是用于UE进行系统接入的同步信号块的频域位置。可选的，在不存在显示指示同步信号块位置的信令时，UE通过同步信号栅格确定同步信号块的频域位置。在同步信号栅格中，同步信号块的频域位置被定义为SSB参考频率SS REF，其编号为GSCN，换句话说，每一个SSB参考频率与一个全球同步信道号(global synchronization channel number，GSCN)对应。系统中可以针对全球所有可用的频段(frequency range)定义不同的GSCN值。请参考3GPP  38.101-1中5.4.3.2节中表格5.4.3.1-1，其给出了与同步信号块参考频率SS REF对应的资源元素，针对每个频带分别定义同步信号栅格和SSB的子载波间隔：
Table 5.4.3.1-1:GSCN parameters for the global frequency raster
Figure PCTCN2019116834-appb-000011
可选地，在一些实施例中，所述CORESET 0与同步信号块或同步信号栅格值之间的第一频域偏移信息为系统预设的，第一频域偏移信息可被称为“第一频域偏移”。同步信号块可以为SS block或者SS/PBCH block。所述第一频域偏移信息可以是以Hz，MHz，kHz等为单位的频域偏移信息，也可以是以子载波、资源块PRB，资源单元RE等为单位的频域偏移信息。可以理解的，当采用不同的配置方式，如不同的子载波间隔时，所述第一频域偏移信息对应的数值可能不同，但是应当理解的，以不同基本单元为单位所表示的第一频域偏移信息之间可以进行数学转换，本申请不做限制。示例性地，同步信号栅格值是指同步信号栅格上的SS REF。在第一频域偏移信息表示CORESET 0与同步信号块之间的偏移的情况下，UE根据同步信号块对应在同步信号块栅格的SS REF确定与CORSET 0的第一频域偏移信息，具体地，基站发送同步信号块，相应地，UE检测同步信号块，并根据检测到的同步信号块对应的GSCN确定CORESET 0的第一频域偏移信息(结合表5.4.3.1-1和以下表5)，从而确定CORESET 0的位置。或者，示例性地，UE在同步信号栅格上检测同步信号块。在频域偏移值表示CORESET 0与同步信号块栅格值之间的偏移的情况下，UE根据同步信号块栅格的SS REF确定与CORESET 0的频域偏移信息。
示例性地，以下采用A和B表示CORESET 0，或者同步信号块/同步信号块栅格值，当A表示CORESET 0的情况下，B表示同步信号块或者同步信号栅格；当A表示同步信号块或者同步信号栅格时，B表示CORESET 0。对于A与B之间的第一频域偏移信息可以通过A的起始频域位置与B的起始频域位置之间的偏移量来表示，或者通过A的中心频点位置与B的中心频点位置之间的偏移量来表示，或者通过A的终止频域位置与B的终止频域位置之间的偏移量来表示。即可以通过在{A的最低频域位置、A的最高频域位置、A的中心频点位置，等}和{B的最低频域位置、B的最高频域位置、B的中心频点位置，等}两个集合中分别任意选择一个元素进行组合来实现。可以理解的，所述第一频域偏移信息可以为大于0和/或等于0和/或小于0的数。可以通过正值和负值区分A和B的相对位置，示例性地，如果所述第一频域偏移信息为负值，则表示A的起始频点位置低于B的起始频点位置。
以所述第一频域偏移信息为CORESET 0在频域上的起始位置与同步信号块在频域上的起始位置之间的频域偏移信息，或所述第一频域偏移信息为CORESET 0在频域上的起始位置与同步信号栅格之间的频域偏移信息为例。在一些实施方式中，一些 同步信号块在频域的位置为系统预设的，示例性地，通过同步信号块栅格定义所述一些同步信号块所处的频域位置，所述同步信号块栅格与同步信号块所对应的频点信息一一对应，如NR 38.101-1中Table 5.4.3.1-1定义的GSCN,一个GSCN值对应一个同步信号块的参考频点，所述参考频点为同步信号块所对应的中心频点。所述频点可以为以Hz，MHz，kHz等为单位的具体频点信息，如5000MHz。进一步地，针对不同频域位置上的同步信号块或同步信号块栅格(或者GSCN)，所述CORESET 0相对于所述不同频域位置上同步信号块或同步信号块栅格(或者GSCN)的第一频域偏移信息可以相同或不同。可针对所述每个同步信号块或同步信号块栅格(或者GSCN)定义不同的第一频域偏移信息。可以理解的，由于所述每个同步信号块或同步信号块栅格(GSCN)的频域位置为系统预设的，根据所述同步信号块或同步信号块栅格(或者GSCN)的频域位置信息和对应的第一频域偏移信息，即可确定所述CORESET0的频域位置。示例性地，可以采用表格的形式，对所述CORESET 0和同步信号块或同步信号栅格之间的第一频域偏移信息进行预设。所述第一信息可以对应一个索引(index)，一个索引可以对应一组配置，所述配置包括同步信号块的样式(pattern)、CORESET 0的配置信息(可以为RB数、符号数的一种或多种组合)，所述频域偏移信息中的一种或多种。如表3和表4，分别示出了不同子载波间隔场景下，所述第一信息分别对应不同索引时的配置参数表。进一步的，所述第一频域偏移信息通过表5进行预设，表5示出了，对于系统预设的不同的同步信号栅格位置GSCN，在不同子载波间隔场景下，CORESET 0相对于不同的同步信号块之间的第一频域偏移信息。示例中，O 15kHz表示以15kHz子载波间隔所定义的PRB为基本单元所表示的频域偏移信息，O 30kHz表示以30kHz子载波间隔所定义的PRB为基本单元所表示的频域偏移信息。可以理解的，表3，4，5中定义的参数均用于举例说明，表3，4，5的格式也可以进行组合，不构成限定。
可选的，在一些实施例中，在第一频域偏移信息的基础上，还可以包括第二频域偏移信息，该第二频域偏移信息通过系统消息和/或RRC信令和/或DCI信令进行指示。所述CORESET 0与同步信号块或同步信号栅格值之间的频域偏移可以通过结合第一频域偏移信息和第二频域偏移信息确定，该第二频域偏移信息可以理解为一个偏移量。示例性的，所述频域偏移信息＝所述第一频域偏移信息+所述第二频域偏移信息，所述第一频域偏移信息为以PRB为单位的偏移信息，所述第二频域偏移信息为以子载波为单位的偏移信息，从而可以实现更为灵活的指示
表3子载波间隔＝15kHz CORESET 0配置参数表
Figure PCTCN2019116834-appb-000012
表4子载波间隔＝30kHz CORESET 0配置参数表
Figure PCTCN2019116834-appb-000013
表5子载波间隔＝15kHz，30 kHz CORESET 0相对于GSCN偏移配置参数表
GSCN O 15kHz O 30kHz GSCN O 15kHz O 30kHz GSCN O 15kHz O 30kHz
8996 14 2 9232 13 2 9385 15 3
9010 15 3 9246 14 2 9402 12 1
9024 15 3 9260 15 3 9416 13 2
9037 8 0 9274 15 3 9430 13 2
9051 9 0 9287 8 0 9444 14 2
9065 10 0 9301 9 0 9458 15 3
9079 11 1 9315 10 0 9471 8 0
9093 12 1 9329 11 1 9485 9 0
9107 13 2 9343 12 1 9499 10 0
9121 14 2 9357 13 2 9513 11 1
9218 12 1 9371 14 2      
本实施例的相关特征可以引用前述实施例或下面实施例，因此，重复的部分没有赘述。另外，下属装置实施例或系统实施例中涉及网络设备或终端的(或相关模块、芯片、系统、计算机程序，存储介质)，也可以用于执行本申请实施例所提供的方法。
上文中详细描述了根据本申请实施例的用于指示控制信息的方法，下面将描述本申请实施例的通信装置。
本申请实施例详细描述了通信装置的示意性结构。
在一个示例中，图5示出了本申请实施例的一种通信装置5000的示意性框图。本申请实施例的装置5000可以是上述方法实施例中的终端设备，也可以是终端设备内的一个或多个芯片。装置5000可以用于执行上述方法实施例中的终端设备的部分或全部功能。该装置5000可以包括收发模块5010和处理模块5020，可选的，该装置5000还可以包括存储模块5030。
例如，该收发模块5010，可以用于接收前述方法实施例中的步骤101中来自网络设备的主信息块，接收步骤103中来自网络设备的下行控制信息。
该处理模块5020可以用于执行前述方法实施例中步骤102。
可以替换的，装置5000也可配置成通用处理系统，例如通称为芯片，该处理模块5020可以包括：提供处理功能的一个或多个处理器；所述收发模块5010例如可以是 输入/输出接口、管脚或电路等，输入/输出接口可用于负责此芯片系统与外界的信息交互，例如，此输入/输出接口可将终端设备的上行数据输出给此芯片外的其他模块进行处理。该处理模块可执行存储模块中存储的计算机执行指令以实现上述方法实施例中终端设备的功能。在一个示例中，装置5000中可选的包括的存储模块5030可以为芯片内的存储单元，如寄存器、缓存等，所述存储模块5030还可以是所述终端设备内的位于芯片外部的存储单元，如只读存储器(read-only memory，简称ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，简称RAM)等。
在另一个示例中，图6示出了本申请实施例的另一种通信装置5100的示意性框图。本申请实施例的装置5100可以是上述方法实施例中的终端设备，装置5100可以用于执行上述方法实施例中的终端设备的部分或全部功能。该装置5100可以包括：处理器5110，基带电路5130，射频电路5140以及天线5150，可选的，该装置5100还可以包括存储器5120。装置5100的处理器5110、存储器5120和基带电路5130通过总线5160耦合在一起，其中总线系统5160除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图中将各种总线都标为总线系统5160。基带电路5130和射频电路5140连接，射频电路5140和天线5150连接。
处理器5110可用于实现对终端设备的控制，用于执行上述实施例中由终端设备进行的处理，可以执行上述方法实施例中涉及终端设备的处理过程和/或用于本申请所描述的技术的其他过程，还可以运行操作系统，负责管理总线以及可以执行存储在存储器中的程序或指令。
基带电路5130、射频电路5140以及天线5150可以用于支持终端设备和上述实施例中涉及的网络设备之间收发信息，以支持终端设备与网络设备之间进行无线通信。一个示例中，来自网络设备发送的主信息块经由天线5150接收，由射频电路5140进行滤波、放大、下变频以及数字化等处理后，再经由基带电路5130解码、按协议解封装数据等基带处理后，由处理器5110进行处理来恢复网络设备所发送的信令信息；又一个示例中，终端设备的上行数据可由处理器5110进行处理，经由基带电路5130进行按协议封装，编码等基带处理，进一步由射频电路5140进行模拟转换、滤波、放大和上变频等射频处理后，经由天线5150发射出去。
存储器5120可以用于存储站点的程序代码和数据，存储器5120可以是图5中的存储模块5030。可以理解的，基带电路5130、射频电路5140以及天线5150还可以用于支持终端设备与其他网络实体进行通信，例如,用于支持终端设备与核心网侧的网元进行通信。图6中存储器5120被示为与处理器5110分离，然而，本领域技术人员很容易明白，存储器5120或其任意部分可位于通信装置5100之外。举例来说，存储器5120可以包括传输线、和/或与无线节点分离开的计算机制品，这些介质均可以由处理器5110通过总线接口5160来访问。可替换地，存储器5120或其任意部分可以集成到处理器5110中，例如，可以是高速缓存和/或通用寄存器。
可以理解的是，图6仅仅示出了终端设备的简化设计。例如，在实际应用中，终端设备可以包含任意数量的发射器，接收器，处理器，存储器等，而所有可以实现本申请的终端设备都在本申请的保护范围之内。
一种可能的实现方式中，通信装置也可以使用下述来实现：一个或多个现场可编程门阵列(field-programmable gate array，FPGA)、可编程逻辑器件(programmable logic device，PLD)、控制器、状态机、门逻辑、分立硬件部件、任何其它适合的电路、或者能够执行本申请通篇所描述的各种功能的电路的任意组合。在又一个示例中，本申请实施例还提供一种计算机存储介质，该计算机存储介质可以存储用于指示上述任一种方法的程序指令，以使得处理器执行此程序指令实现上述方法实施例中涉及终端设备的方法和功能。
本申请实施例详细描述通信装置的示意性结构。在一个示例中，图7示出了本申请实施例的一种通信装置5200的示意性框图。本申请实施例的装置5200可以是上述方法实施例中的网络设备，也可以是网络设备内的一个或多个芯片。装置5200可以用于执行上述方法实施例中的网络设备的部分或全部功能。该装置5200可以包括处理模块5210和收发模块5220，可选的，该装置5200还可以包括存储模块5230。
例如，该收发模块5220，可以用于网络设备发送前述方法实施例中的步骤101的主信息块，发送步骤103中的下行控制信息；
可以替换的，装置5200也可配置成通用处理系统，例如通称为芯片，该处理模块5210可以包括：提供处理功能的一个或多个处理器；所述收发模块例如可以是输入/输出接口、管脚或电路等，输入/输出接口可用于负责此芯片系统与外界的信息交互，例如，此输入/输出接口可将主信息块输出给此芯片外的其他模块进行处理。该一个或多个处理器可执行存储模块中存储的计算机执行指令以实现上述方法实施例中网络设备的功能。在一个示例中，装置5200中可选的包括的存储模块5230可以为芯片内的存储单元，如寄存器、缓存等，所述存储模块5230还可以是所述网络设备内的位于芯片外部的存储单元，如只读存储器(read-only memory，简称ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，简称RAM)等。
在另一个示例中，图8示出了本申请实施例的另一种通信装置5300的示意性框图。本申请实施例的装置5300可以是上述方法实施例中的网络设备，装置5300可以用于执行上述方法实施例中的网络设备的部分或全部功能。该装置5300可以包括：处理器5310，基带电路5330，射频电路5340以及天线5350，可选的，该装置5300还可以包括存储器5320。装置5300的处理器5310、存储器5320和基带电路5330通过总线5360耦合在一起，其中总线系统5360除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图中将各种总线都标为总线系统5360。基带电路5330和射频电路5340连接，射频电路5340和天线5350连接。
处理器5310可用于实现对网络设备的控制，用于执行上述实施例中由网络设备进行的处理，可以执行上述方法实施例中涉及网络设备的处理过程和/或用于本申请所描述的技术的其他过程，还可以运行操作系统，负责管理总线以及可以执行存储在存储器中的程序或指令。
基带电路5330、射频电路5340以及天线5350可以用于支持网络设备和上述实施 例中涉及的终端设备之间收发信息，以支持网络设备与终端设备之间进行无线通信。一个示例中，网络设备的主信息块可由处理器5310进行处理，经由基带电路5330进行按协议封装，编码等基带处理，进一步由射频电路5340进行模拟转换、滤波、放大和上变频等射频处理后，经由天线5350发射出去，存储器5320可以用于存储网络设备的程序代码和数据，存储器5320可以是图7中的存储模块5230。可以理解的，基带电路5330、射频电路5340以及天线5350还可以用于支持网络设备与其他网络实体进行通信，例如,用于支持网络设备与其他网络设备进行通信。
可以理解的是，图8仅仅示出了网络设备的简化设计。例如，在实际应用中，网络设备可以包含任意数量的发射器，接收器，处理器，存储器等，而所有可以实现本申请的网络设备都在本申请实施例的的保护范围之内。
一种可能的实现方式中，通信装置也可以使用下述来实现：一个或多个现场可编程门阵列(field-programmable gate array，FPGA)、可编程逻辑器件(programmable logic device，PLD)、控制器、状态机、门逻辑、分立硬件部件、任何其它适合的电路、或者能够执行本申请通篇所描述的各种功能的电路的任意组合。
在又一个示例中，本申请实施例还提供一种计算机存储介质，该计算机存储介质可以存储用于指示上述任一种方法的程序指令，以使得处理器执所述程序指令实现上述方法实施例中涉及网络设备的方法和功能。
上述装置5100和装置5300中涉及的处理器可以是通用处理器，例如通用中央处理器(CPU)、网络处理器(Network Processor，简称NP)、微处理器等，也可以是特定应用集成电路(application-specific integrated circBIt，简称ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。还可以是数字信号处理器(Digital Signal Processor，简称DSP)、现场可编程门阵列(Field-Programmable Gate Array，简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。控制器/处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。处理器通常是基于存储器内存储的程序指令来执行逻辑和算术运算。
上述装置5100和装置5300中涉及的存储器还可以保存有操作系统和其他应用程序。具体地，程序可以包括程序代码，程序代码包括计算机操作指令。更具体的，上述存储器可以是只读存储器(read-only memory，简称ROM)、可存储静态信息和指令的其他类型的静态存储设备、随机存取存储器(random access memory，简称RAM)、可存储信息和指令的其他类型的动态存储设备、磁盘存储器等等。存储器可以是上述存储类型的组合。并且上述计算机可读存储介质/存储器可以在处理器中，还可以在处理器的外部，或在包括处理器或处理电路的多个实体上分布。上述计算机可读存储介质/存储器可以具体体现在计算机程序产品中。举例而言，计算机程序产品可以包括封装材料中的计算机可读介质。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些 接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk)等。

Claims (31)

  1. 一种用于指示控制信息的方法，其特征在于，包括：
    接收网络设备发送的第一信息，所述第一信息用于指示控制信息资源集CORESET0在时域上所占符号个数和在频域上的第一偏移量；
    根据所述第一信息和预定的子载波间隔确定所述CORESET 0的时频资源位置；
    在所述CORESET 0的时频资源位置接收下行控制信息。
  2. 根据权利要求1所述的方法，其特征在于，当一个时隙支持一个或多个同步信号块SSB和CORESET 0发送时，所述第一信息还用于指示每一个时隙内的CORESET0的个数。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一偏移量用于指示所述CORESET 0对应的第一资源块RB的序号，所述第一RB位于所述第一信息对应的SSB所在的部分带宽中，所述第一偏移量为X1、X2、X3、或X4中任意一项，X1、X2、X3和X4为整数且不相等。
  4. 根据权利要求3所述的方法，其特征在于，当所述预定的子载波间隔为15kHz或30kHz时，所述第一信息为四个比特。
  5. 根据权利要求1或2所述的方法，其特征在于，所述第一偏移量用于指示所述CORESET 0对应的第一资源块RB的序号，所述第一RB位于所述第一信息对应的SSB所在的部分带宽中，所述第一偏移量为Y1、Y2、Y3、Y4、Y5、或Y6中的任意一项，Y1、Y2、Y3、Y4、Y5和Y6为整数且不相等。
  6. 根据权利要求5所述的方法，其特征在于，当所述预定的子载波间隔为15kHz时，所述第一信息为五个比特。
  7. 根据权利要求1至6任一项所述的方法，其特征在于，所述方法还包括：
    接收所述网络设备发送的第二信息，所述第二信息用于指示CORESET 0在频域上的第二偏移量，所述第二偏移量用于指示所述CORESET 0对应的第一RB中的子载波的序号，其中，所述第二偏移量为0至11中任意一项，所述CORESET 0的时频资源位置为根据所述第一信息和所述第二信息确定的。
  8. 根据权利要求1至6任一项所述的方法，其特征在于，所述第一信息对应的SSB所在的部分带宽与无线局域网的频段对齐，所述SSB在所述部分带宽的预设位置发送。
  9. 根据权利要求8所述的方法，其特征在于，所述方法还包括：
    接收所述网络设备发送的第二信息，所述第二信息用于指示至少一个参考信号，所述至少一个参考信号与所述同步信号块为准共址关系。
  10. 一种用于指示控制信息的方法，其特征在于，包括：
    向终端设备发送第一信息，所述第一信息用于指示控制信息资源集CORESET 0在时域上所占符号个数和在频域上的第一偏移量，所述第一信息为根据预定的子载波间隔确定的；
    在所述CORESET 0的时频资源位置发送下行控制信息。
  11. 根据权利要求10所述的方法，其特征在于，所述方法还包括：
    向所述终端设备发送第二信息，所述第二信息用于指示CORESET 0在频域上的 第二偏移量，所述第二偏移量用于指示所述CORESET 0对应的第一RB中的子载波间隔的序号，其中，所述第二偏移量为0至11中任意一项。
  12. 根据权利要求10所述的方法，其特征在于，所述第一信息对应的同步信号块所在的部分带宽与无线局域网的频段划分对齐，所述同步信号块为在所述部分带宽的预设位置发送的。
  13. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    向所述终端设备发送第二信息，所述第二信息用于指示至少一个参考信号，所述至少一个参考信号与所述同步信号块为准共址关系。
  14. 一种无线通信装置，其特征在于，包括：
    收发器，用于接收网络设备发送的第一信息，所述第一信息用于指示控制信息资源集CORESET 0在时域上所占符号个数和在频域上的第一偏移量；
    处理器，用于根据所述第一信息和预定的子载波间隔确定所述CORESET 0的时频资源位置；
    所述处理器，还用于通过所述收发器在所述CORESET 0的时频资源位置接收下行控制信息。
  15. 根据权利要求14所述的装置，其特征在于，当一个时隙支持一个或多个同步信号块SSB和CORESET 0发送时，所述第一信息还用于指示每一个时隙内的CORESET 0的个数。
  16. 根据权利要求14或15所述的装置，其特征在于，所述第一偏移量用于指示所述CORESET 0对应的第一资源块RB的序号，所述第一RB位于所述第一信息对应的同步信号块所在的部分带宽中，所述第一偏移量为X1、X2、X3、或X4中任意一项，X1、X2、X3和X4为整数且不相等。
  17. 根据权利要求16所述的装置，其特征在于，当所述预定的子载波间隔为15kHz或30kHz时，所述第一信息为四个比特。
  18. 根据权利要求14或15所述的装置，其特征在于，所述第一偏移量用于指示所述CORESET 0对应的第一资源块RB的序号，所述第一RB位于所述第一信息对应的同步信号块所在的部分带宽中，所述第一偏移量为Y1、Y2、Y3、Y4、Y5、或Y6中的任意一项，Y1、Y2、Y3、Y4、Y5和Y6为整数且不相等。
  19. 根据权利要求18所述的装置，其特征在于，当所述预定的子载波间隔为15kHz时，所述第一信息为五个比特。
  20. 根据权利要求14至19任一项所述的装置，其特征在于，所述收发器还用于接收所述网络设备发送的第二信息，所述第二信息用于指示CORESET 0在频域上的第二偏移量，所述第二偏移量用于指示所述CORESET 0对应的第一RB中的子载波的序号，其中，所述第二偏移量为0至11中任意一项，所述CORESET 0的时频资源位置为根据所述第一信息和所述第二信息确定的。
  21. 根据权利要求14至19任一项所述的装置，其特征在于，所述第一信息对应的同步信号块所在的部分带宽与无线局域网的频段对齐，所述同步信号块在所述部分带宽的预设位置发送。
  22. 根据权利要求21所述的装置，其特征在于，所述收发器还用于接收所述网络 设备发送的第二信息，所述第二信息用于指示至少一个参考信号，所述至少一个参考信号与所述同步信号块为准共址关系。
  23. 一种无线通信装置，其特征在于，包括：
    收发器，用于向终端设备发送第一信息，所述第一信息用于指示控制信息资源集CORESET 0在时域上所占符号个数和在频域上的第一偏移量，所述第一信息为根据预定的子载波间隔确定的；
    处理器，用于通过收发器在所述CORESET 0的时频资源位置发送下行控制信息。
  24. 根据权利要求23所述的装置，其特征在于，所述收发器还用于向所述终端设备发送第二信息，所述第二信息用于指示CORESET 0在频域上的第二偏移量，所述第二偏移量用于指示所述CORESET 0对应的第一RB中的子载波间隔的序号，其中，所述第二偏移量为0至11中任意一项。
  25. 根据权利要求23所述的装置，其特征在于，所述第一信息对应的同步信号块所在的部分带宽与无线局域网的频段划分对齐，所述同步信号块为在所述部分带宽的预设位置发送的。
  26. 根据权利要求25所述的装置，其特征在于，所述收发器还用于向所述终端设备发送第二信息，所述第二信息用于指示至少一个参考信号，所述至少一个参考信号与所述同步信号块为准共址关系。
  27. 一种终端设备，其特征在于，包括：
    一个或多个处理器；
    存储器，用于存储一个或多个程序；
    当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如权利要求1-9中任一项所述的方法。
  28. 一种网络设备，其特征在于，包括：
    一个或多个处理器；
    存储器，用于存储一个或多个程序；
    当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如权利要求10-13中任一项所述的方法。
  29. 一种计算机可读存储介质，其特征在于，包括计算机程序，所述计算机程序在计算机上被执行时，使得所述计算机执行权利要求1-13中任一项所述的方法。
  30. 一种计算机程序，其特征在于，当所述计算机程序被计算机执行时，用于执行权利要求1-9中任一项所述的方法或权利要求10-13中任一项所述的方法。
  31. 一种芯片，其特征在于，包括处理器和存储器，所述存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，以执行如权利要求1-9中任一项所述的方法或权利要求10-13中任一项所述的方法。
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