WO2022021085A1 - Procédé et appareil d'indication d'informations, dispositif de terminal et dispositif de réseau - Google Patents

Procédé et appareil d'indication d'informations, dispositif de terminal et dispositif de réseau Download PDF

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Publication number
WO2022021085A1
WO2022021085A1 PCT/CN2020/105272 CN2020105272W WO2022021085A1 WO 2022021085 A1 WO2022021085 A1 WO 2022021085A1 CN 2020105272 W CN2020105272 W CN 2020105272W WO 2022021085 A1 WO2022021085 A1 WO 2022021085A1
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bits
field
information field
pbch
indication
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PCT/CN2020/105272
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English (en)
Chinese (zh)
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贺传峰
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Oppo广东移动通信有限公司
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Priority to PCT/CN2020/105272 priority Critical patent/WO2022021085A1/fr
Priority to CN202080101757.3A priority patent/CN115699938A/zh
Publication of WO2022021085A1 publication Critical patent/WO2022021085A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the field of mobile communication technologies, and in particular, to an information indication method and apparatus, a terminal device, and a network device.
  • a synchronization signal block (SS/PBCH Block, SSB) is transmitted within a configured discovery reference signal (Discovery reference signal, DRS) window.
  • DRS discovery reference signal
  • LBT Listen Before Talk
  • the start time of obtaining channel access may not be the start time of the DRS window.
  • the concept of candidate SSB in the DRS window is introduced. How to indicate candidate SSBs within the DRS window is to be optimized.
  • Embodiments of the present application provide an information indication method and apparatus, a terminal device, and a network device.
  • the terminal device receives a physical broadcast channel (Physical Broadcast Channel, PBCH), the PBCH carries first indication information, the first indication information is used to indicate the index of the candidate SSB, and the first indication information is represented by N bits, where N is Integer greater than 5.
  • PBCH Physical Broadcast Channel
  • the network device sends a PBCH, where the PBCH carries first indication information, where the first indication information is used to indicate an index of a candidate SSB, and the first indication information is represented by N bits, where N is an integer greater than 5.
  • the information indicating device provided by the embodiment of the present application is applied to terminal equipment, and the device includes:
  • a receiving unit configured to receive a PBCH, where the PBCH carries first indication information, the first indication information is used to indicate the index of the candidate synchronization signal block SSB, the first indication information is represented by N bits, and N is greater than 5 Integer.
  • the information indicating device provided by the embodiment of the present application is applied to network equipment, and the device includes:
  • a sending unit configured to send a PBCH, where the PBCH carries first indication information, where the first indication information is used to indicate an index of a candidate SSB, and the first indication information is represented by N bits, where N is an integer greater than 5.
  • the terminal device provided by the embodiments of the present application includes a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program stored in the memory to execute the above-mentioned information indicating method.
  • the network device provided by the embodiments of the present application includes a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program stored in the memory to execute the above-mentioned information indicating method.
  • the chip provided by the embodiment of the present application is used to implement the above-mentioned information indication method.
  • the chip includes: a processor for calling and running a computer program from the memory, so that the device installed with the chip executes the above-mentioned information indicating method.
  • the computer-readable storage medium provided by the embodiments of the present application is used to store a computer program, and the computer program enables a computer to execute the above-mentioned information indication method.
  • the computer program product provided by the embodiments of the present application includes computer program instructions, and the computer program instructions cause a computer to execute the above-mentioned information indication method.
  • the computer program provided by the embodiment of the present application when running on a computer, causes the computer to execute the above-mentioned information indicating method.
  • N bits in the PBCH are used to indicate the indices of the candidate SSBs. Since N is an integer greater than 5, the N bits can indicate the indices of a larger number of candidate SSBs. , which is more suitable for the indication of the index of the candidate SSB in the high frequency range.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of an SSB provided by an embodiment of the present application.
  • 3-1 is a schematic diagram of a transmission pattern of an SSB in a time slot provided by an embodiment of the present application
  • Figure 3-2 shows the candidate and actual sending positions of the SSB in the DRS window provided by the embodiment of the present application
  • FIG. 4 is a schematic diagram of an indication of an index of a candidate SSB in a PBCH provided by an embodiment of the present application;
  • FIG. 5 is a schematic flowchart of an information indication method provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of the composition of N bits provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of application example 1 provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of an application example 2 provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of application example three provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram 1 of the structure and composition of an information indicating device provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram 2 of the structure and composition of an information indicating device provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • FIG. 14 is a schematic block diagram of a communication system provided by an embodiment of the present application.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • 5G communication systems or future communication systems etc.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area and may communicate with terminals located within the coverage area.
  • the network device 110 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the
  • the network device can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future communication system.
  • the communication system 100 also includes at least one terminal 120 located within the coverage of the network device 110 .
  • Terminal includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connections; and/or another data connection/network; and/or via a wireless interface, e.g. for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM A broadcast transmitter; and/or a device of another terminal configured to receive/transmit a communication signal; and/or an Internet of Things (IoT) device.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN Wireless Local Area Networks
  • WLAN Wireless Local Area Networks
  • digital television networks such as DVB-H networks, satellite networks, AM-FM A broadcast transmitter
  • IoT Internet of Things
  • a terminal arranged to communicate through a wireless interface may be referred to as a "wireless communication terminal", “wireless terminal” or “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radio telephones with data processing, facsimile, and data communication capabilities; may include radio telephones, pagers, Internet/Intranet PDAs with networking access, web browsers, memo pads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or others including radiotelephone transceivers electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • a terminal may refer to an access terminal, user equipment (UE), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in 5G networks or terminals in future evolved PLMNs, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • direct terminal (Device to Device, D2D) communication may be performed between the terminals 120 .
  • the 5G communication system or the 5G network may also be referred to as a new radio (New Radio, NR) system or an NR network.
  • New Radio NR
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminals.
  • the communication system 100 may include multiple network devices, and the coverage of each network device may include other numbers of terminals. This embodiment of the present application This is not limited.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal 120 with a communication function, and the network device 110 and the terminal 120 may be the specific devices described above, which will not be repeated here;
  • the device may further include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • Unlicensed spectrum is the spectrum allocated by countries and regions that can be used for radio equipment communication. This spectrum is generally considered to be shared spectrum, that is, communication equipment in different communication systems can meet the regulatory requirements set by the country or region on the spectrum. To use this spectrum, there is no need to apply for an exclusive spectrum license from the government. In order to allow the friendly coexistence of various communication systems using unlicensed spectrum for wireless communication on this spectrum, some countries or regions stipulate the regulatory requirements that must be met when using unlicensed spectrum.
  • communication equipment follows the LBT principle, that is, before the communication equipment transmits signals on the unlicensed spectrum channel, it needs to perform channel listening, and only when the channel listening result is that the channel is idle, the communication equipment can Signal transmission; if the channel detection result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot perform signal transmission. And in order to ensure fairness, in a transmission, the duration of signal transmission by a communication device using a channel of unlicensed spectrum cannot exceed the Maximum Channel Occupation Time (MCOT).
  • MCOT Maximum Channel Occupation Time
  • the NR-U technology of 3GPP Rel-16 is used in unlicensed frequency bands below 7GHz.
  • the use of unlicensed spectrum in higher frequency bands and related technologies will be considered, such as in Rel-17 52.6GHz-71GHz discussed in the standard.
  • Common channels and signals in the NR system need to cover the entire cell by means of multi-beam scanning, which is convenient for terminal equipment in the cell to receive.
  • the multi-beam transmission of SSB is realized by defining the SSB burst set (SSB burst set).
  • An SS burst set contains one or more SSBs.
  • An SSB is used to carry the synchronization signal and broadcast channel of a beam, wherein the synchronization signal includes a primary synchronization signal (Primary Synchronization Signal, PSS) and a secondary synchronization signal (Secondary Synchronization Signal, SSS), and the broadcast channel is PBCH.
  • An SS burst set may contain SSBs of the SSB number (SSB number) beams in the cell.
  • the maximum number L of SSB numbers is related to the frequency band of the system:
  • L 4;
  • L 64.
  • One SSB contains one symbol of PSS, one symbol of SSS and two symbols of PBCH, as shown in Figure 2.
  • the time-frequency resource occupied by the PBCH includes a DMRS, which is used for demodulation of the PBCH, and the DMRS may also be referred to as a PBCH DMRS.
  • All SSBs in the SSB burst set are sent within a time window of 5ms, and are repeatedly sent with a certain period.
  • the period is configured by the high-level parameter SSB-timing, including 5ms, 10ms, 20ms, 40ms, 80ms, 160ms, etc.
  • the index of the SSB is obtained through the received SSB, and the index of the SSB corresponds to the relative position of the SSB in the 5ms time window.
  • the terminal device obtains frame synchronization according to the index of the SSB and the half-frame indication carried in the PBCH. Wherein, the index of the SSB is indicated by the DMRS of the PBCH or the information carried by the PBCH.
  • the index of the SSB can be used by the terminal device to obtain frame synchronization and QCL relationship. Specifically, the position of the SSB in the radio frame can be obtained through the index of the SSB and the field indication, so as to obtain frame synchronization.
  • PBCH includes PBCH DMRS and PBCH load.
  • the information carried in the PBCH load includes A-bit information from the upper layer and 8-bit information related to layer 1 (ie, the physical layer), and the information related to the physical layer includes SFN information, half-frame indication information, and SSB index information.
  • the specific definitions are as follows:
  • the information carried in the PBCH load includes: 1) A master information block (Master Information Block, MIB) from a higher layer, with a total of A bits: and 2) 8 bits from the physical layer correlation: in,
  • MIB Master Information Block
  • A-bit MIB includes: 6-bit SFN information field, 1-bit common subcarrier spacing information field (ie subCarrierSpacingCommon information field), 4-bit SSB subcarrier offset information field (ie ssb-SubcarrierOffset information field), 1 bit DMRS related information field (ie Dmrs-TypeA-Position information field), 8-bit SIB1 PDCCH configuration information field (ie Pdcch-ConfigSIB1 information field), etc., which also includes 1-bit reserved bits.
  • the SFN information field corresponds to the highest 6 bits of the SFN.
  • the ssb-SubcarrierOffset information field is used to indicate the offset k SSB between the physical resource block (Physical Resource Block, PRB) grids between the channels or signals of the synchronous signal block and the non-synchronized signal block, and the offset includes 0-11 Or 0-23 subcarriers.
  • the ssb-SubcarrierOffset information field corresponds to the lowest 4 bits of the parameter k SSB .
  • the subCarrierSpacingCommon information field is used to indicate the subcarrier spacing for transmitting the PDCCH and PDSCH of SIB1.
  • the contents of the MIB can be referred to as shown in Table 1 below.
  • the SFN information field corresponding to the lowest 4 bits of SFN.
  • the system frequency band is less than 6 GHz, that is, when the L SSB is less than 64, the information related to the physical layer has 2 reserved bits.
  • the SSB is transmitted within the configured DRS window.
  • consideration is given to how to reduce the impact of LBT failure on SSB transmission.
  • These designs include the length of the DRS window, the transmission pattern of the SSB, and so on.
  • the length of the DRS window is configurable, and its maximum length is half a frame, and the configurable length includes ⁇ 0.5, 1, 2, 3, 4, 5 ⁇ ms.
  • each time slot contains the transmission positions of two SSBs.
  • the transmission pattern of the SSB in the DRS window can be obtained.
  • the subcarrier spacing of the SSB is 30kHz and 15kHz, and the DRS window contains 20 and 10 SSB positions respectively.
  • This SSB position is called a candidate SSB position, and whether or not to transmit the SSB at this candidate SSB position depends on the result of LBT.
  • Figure 3-2 shows the schematic diagrams of the candidate sending positions and the actual sending positions of the SSB in the DRS window, where each candidate SSB position corresponds to a candidate SSB index.
  • the DRS window contains at most 20 SSB candidate positions (the subcarrier spacing is 30kHz), and the range of the candidate SSB indices needs to support 0,...,19. Therefore, 5 bits need to be determined in the PBCH to indicate the index of the candidate SSB.
  • NR-U follows this method, which is used to indicate the lowest 3 bits of the index of the candidate SSB, and the remaining 2 bits use the fourth, 5 bits of bits.
  • the carrier frequency band of the R16NR-U system belongs to FR1, and in the FR1 frequency band of R15, These two bits are free, so they can be redefined in the R16NR-U system to indicate the 4th and 5th bits of the index of the candidate SSB. also, (ie field indication) is also the same as R15.
  • Figure 4 shows a schematic diagram of the index indication of the candidate SSB.
  • the index of the candidate SSB is represented by 5 bits, wherein the 3 bits of the lower 3 bits are from the PBCH DMRS, and the 2 bits of the upper 2 bits are from the SSB index information field of the PBCH (which is ).
  • the DRS window contains 80 and 160 respectively.
  • the location of the candidate SSB a maximum of 8 bits need to be carried in the PBCH to indicate the index of the candidate SSB.
  • the information field currently defined in the PBCH does not support the 8 bits.
  • FIG. 5 is a schematic flowchart of an information indication method provided by an embodiment of the present application. As shown in FIG. 5 , the information indication method includes the following steps:
  • Step 501 The terminal device receives the PBCH, the PBCH carries first indication information, the first indication information is used to indicate the index of the candidate synchronization signal block SSB, the first indication information is represented by N bits, and N is greater than 5. Integer.
  • the network device sends the PBCH, and correspondingly, the terminal device receives the PBCH.
  • the network device may be a base station, such as a gNB.
  • the PBCH carries first indication information, where the first indication information is used to indicate an index of a candidate SSB, and the first indication information is represented by N bits, where N is an integer greater than 5.
  • the position of the candidate SSB is located in the DRS window, and the length of the DRS window can be configured.
  • the maximum length of the DRS window is one half frame (ie, 5 ms).
  • the positions of the candidate SSBs included in the DRS window are at least related to the length of the DRS window and the subcarrier spacing of the candidate SSBs.
  • the number of candidate SSB positions included in the DRS window is T, and the indices of the T candidate SSBs need to be represented by N bits, where N is an integer greater than 5.
  • the N bits are determined based on at least two kinds of information in the PBCH: PBCH DMRS, PBCH physical layer information field, and PBCH MIB information field.
  • the bits occupied by the PBCH physical layer information field are 8 bits related to the physical layer in the above technical solution.
  • the PBCH MIB information field is the A-bit MIB information field in the above technical solution. The following describes the N bits as if they were characterized by the information in the PBCH.
  • the N bits are composed of N1 bits, N2 bits, and N3 bits in the order of low order to high order.
  • the N1 bit in the N bits is determined based on the PBCH DMRS in the PBCH, where N1 is an integer greater than or equal to 1 and less than N.
  • the PBCH DMRS supports P types, P is a positive integer, and the indices of the P types of the PBCH DMRS are represented by the N1 bits.
  • the value of N1 is 3.
  • the value of N1 is 4.
  • the N1 bits refer to the lower N1 bits in the N bits.
  • the N2 bit in the N bits is determined based on the PBCH physical layer information field in the PBCH, where N2 is an integer greater than or equal to 1 and less than N.
  • the PBCH physical layer information field includes at least one of the following: an SSB index information field and a half frame indication field.
  • the N2 bits are determined based on the SSB index information field.
  • the SSB index information field occupies 3 bits (that is, ), the N2 bits correspond to 3 bits in the SSB index information field.
  • the N2 bits are determined based on the field indication field.
  • the field indication field occupies 1 bit (that is, ), the N2 bits correspond to 1 bit in the field indication field.
  • the first part of the bits in the N2 bits is determined based on the SSB index information field, and the second part of the bits in the N2 bits is determined based on the half frame indication field.
  • the SSB index information field occupies 3 bits (that is, ), the field indication field occupies 1 bit (ie ), the first part of bits corresponds to 3 bits in the SSB index information field, and the second part of bits corresponds to 1 bit in the field indication field.
  • the bits of the N2 bits are higher than the bits of the N1 bits.
  • the N3 bit in the N bits is determined based on the PBCH MIB information field in the PBCH, where N3 is an integer greater than or equal to 1 and less than N.
  • the PBCH MIB information field includes at least one of the following: the subcarrier offset information field of the SSB (that is, the ssb-SubcarrierOffset information field), the PDCCH configuration information field of the SIB1 (that is, the Pdcch-ConfigSIB1 information field), the common subcarrier spacing Information field (ie subCarrierSpacingCommon information field), spare bit field.
  • the PBCH MIB information fields are not limited to these information fields, and may also include other information fields.
  • the N3 bit is determined based on the subcarrier offset information field of the SSB.
  • the subcarrier offset information field occupies 4 bits
  • the N3 bits correspond to the lower N3 bits in the subcarrier offset information field
  • N3 is an integer greater than or equal to 1 and less than 4.
  • the value of N3 is 1.
  • the value of N3 is 2.
  • the N3 bits are determined based on the common subcarrier spacing information field.
  • the common subcarrier spacing information field occupies 1 bit, and the N3 bits correspond to 1 bit in the common subcarrier spacing information field.
  • the N3 bit is determined based on the subcarrier offset information field of the SSB and the common subcarrier spacing information field.
  • the subcarrier offset information field occupies 4 bits
  • the common subcarrier spacing information field occupies 1 bit
  • the N3 bits correspond to the N3-1 bits in the subcarrier offset information field and the common subcarrier offset information field.
  • 1 bit in the subcarrier spacing information field, N3 is an integer greater than or equal to 2 and less than 4.
  • the value of N3 is 2.
  • the N3 bit is determined based on the PDCCH configuration information field of the SIB1.
  • the PDCCH configuration information field of the SIB1 occupies 8 bits
  • the N3 bits correspond to the N3 bits in the PDCCH configuration information field of the SIB1
  • N3 is an integer greater than or equal to 1 and less than 8.
  • the value of N3 is 1.
  • the value of N3 is 2.
  • the PDCCH configuration information field of the SIB1 includes a first indication field and a second indication field, the first indication field occupies 4 bits, the second indication field occupies 4 bits, and the first indication field occupies 4 bits.
  • the field is used to indicate the index of the first control resource set, and the second indication field is used to indicate the index of the first search space.
  • the N3 bits correspond to the N3 bits in the first indication field, and N3 is an integer greater than or equal to 1 and less than 4.
  • the N3 bits correspond to 1 bit in the first indication field.
  • the N3 bits correspond to the N3 bits in the second indication field, and N3 is an integer greater than or equal to 1 and less than 4.
  • the N3 bits correspond to 1 bit or 2 bits in the second indication field.
  • the N3 bits correspond to M bits in the first indication field and N3-M bits in the second indication field, where M is an integer greater than or equal to 1 and less than N3.
  • the N3 bits correspond to 1 bit in the first indication field and 1 bit in the second indication information field.
  • the bits of the N3 bits are higher than the bits of the N2 bits.
  • the 8 bits are composed of the following: 3 bits indicated by the PBCH DMRS, 3 bits in the SSB index information field, and 2 bits in the SSB subcarrier offset information field.
  • the subcarrier spacing of SSB still adopts the subcarrier spacing of FR2 SSB, that is, 120kHz and 240kHz, then if the window of DRS is still 5ms, 80 and 160 are included in the DRS window respectively. the positions of the candidate SSBs. Then a maximum of 8 bits need to be carried in the PBCH to indicate the index of the candidate SSB.
  • the source of the 8 bits consists of the following:
  • -PBCH DMRS 8 sequences supported by PBCH DMRS to implicitly indicate 3-bit information, which is used to indicate the lowest 3 bits of the index of the candidate SSB.
  • Bits 6, 5, and 4 used to indicate the index of the candidate SSB.
  • the ssb-SubcarrierOffset information field includes 4 bits.
  • the position of the synchronization grid where the SSB is located is predefined in Rel-16, and may also be a predefined position in Rel-17.
  • the selection of the channel grid can reduce the flexibility. Due to the flexible selection of the synchronization grid and the channel grid, the subcarrier offset between the RB boundary of the SSB and the common RB boundary is limited, and it is not necessary to pass the ssb
  • the 4 bits of the -SubcarrierOffset information field indicate 12 kinds of offsets.
  • the ssb-SubcarrierOffset information field only needs 2 bits to indicate the subcarrier offsets, and the saved 2 bits can be reused. 2 bits correspond to 2 bits of the index of the SSB, such as the highest 2 bits.
  • FIG. 7 A schematic diagram of using 2 bits in the ssb-SubcarrierOffset information field to indicate the index of the candidate SSB is shown in FIG. 7 , where bit 0 and bit 1 in the ssb-SubcarrierOffset information field are used to indicate the index of the candidate SSB.
  • the 8 bits consist of the following: 3 bits indicated by the PBCH DMRS, 3 bits in the SSB index information field, 1 bit in the subcarrier offset information field of the SSB (that is, the ssb-SubcarrierOffset information field), common subcarrier spacing information 1 bit in the field (subCarrierSpacingCommon information field).
  • subCarrierSpacingCommon information field since the subcarrier spacing of PDCCH and SSB is always the same as defined in the NR-U technology of Rel-16, the subcarrier spacing of the PDCCH channel no longer needs to be indicated by subCarrierSpacingCommon. This design may still be used in the NR-U technology of the high frequency band of Rel-17, and at this time, 1 bit in the information field can be used to indicate the index of the candidate SSB.
  • Figure 8 shows a schematic diagram of using 1 bit in the ssb-SubcarrierOffset information field and 1 bit in the subCarrierSpacingCommon information field to indicate the index of a candidate SSB, where bit 0 in the ssb-SubcarrierOffset information field and bit 0 in the subCarrierSpacingCommon information field Index used to indicate candidate SSBs.
  • the 8 bits consist of the following: 3 bits indicated by the PBCH DMRS, 3 bits in the SSB index information field, and 2 bits in the PDCCH configuration information field of SIB1 (that is, the Pdcch-ConfigSIB1 information field).
  • the pdcch-ConfigSIB1 information field defines a mapping table for the indication information of a new CORESET #0 (ie, the first CORESET) in the NR-U technology of Rel-16, one of which is shown in the following table.
  • the 4-bit CORESET#0 information field (ie the first indication field) in the 8-bit pdcch-ConfigSIB1 information field actually only needs 3 bits to indicate 8 types of CORESET#0, and its highest bit is not actually used. This bit can be used to indicate the index of the candidate SSB.
  • the 4-bit SearchSpace#0 information field (ie, the second indication field) in the 8-bit pdcch-ConfigSIB1 information field is actually not fully utilized.
  • the 4-bit SearchSpace#0 information field can be used to indicate the index of the candidate SSB.
  • FIG. 9 A schematic diagram of using 2 bits in the pdcch-ConfigSIB1 information field to indicate the index of the candidate SSB is shown in FIG. 9 , where bit 0 and bit 1 in the pdcch-ConfigSIB1 information field are used to indicate the index of the candidate SSB.
  • the 8 bits are composed of the following: 4 bits indicated by the PBCH DMRS, 3 bits in the SSB index information field, and 1 bit in the half frame indication field.
  • the information carried in the PBCH payload includes the PBCH physical layer information field and the PBCH MIB information field. Among them, the content of MIB information in a transmission time interval is unchanged, which is convenient for terminal equipment to perform combined reception.
  • the physical layer information mainly carries timing-related information, such as SFN, half-frame indication, and SSB index. These information are constantly changing within a transmission time interval.
  • the indication of the index of the candidate SSB may be indicated by 8 bits in the PBCH physical layer information field carried in the PBCH payload.
  • the number of PBCH DMRS sequences can be extended to 16 to indicate the candidate SSB 4 bits of the index.
  • 1 bit in the field indication field is used to indicate 1 bit of the index of the candidate SSB.
  • the half frame in which the SSB is sent needs to be predefined as the first half frame or the second half frame.
  • the information fields in other PBCHs can be arbitrarily combined to obtain extra bits (such as extra bits). 2 bits, 3 bits, etc.) to set more bits for indicating the index of the candidate SSB.
  • extra bits such as extra bits
  • 2 bits, 3 bits, etc. to set more bits for indicating the index of the candidate SSB.
  • the subcarrier spacing of SSB may introduce 480kHz.
  • the positions of candidate SSBs can include 320, and 9 bits are required to represent the index of the candidate SSB.
  • the technical solutions of the embodiments of the present application utilize the indication bits of the index of the candidate SSB defined for FR2 in the existing NR technology to the greatest extent, and at the same time, without increasing the number of bits carried by the PBCH, utilize the existing PBCH in some information fields. Redundancy, reusing some bits of the bit field to indicate the index of the candidate SSB has no effect on the indication information of the existing bit field, ensuring backward compatibility.
  • FIG. 10 is a schematic structural diagram 1 of an information indicating device provided by an embodiment of the present application, which is applied to a terminal device. As shown in FIG. 10 , the information indicating device includes:
  • a receiving unit 1001 configured to receive a PBCH, where the PBCH carries first indication information, the first indication information is used to indicate an index of a candidate synchronization signal block SSB, the first indication information is represented by N bits, and N is greater than 5 the integer.
  • the N bits are determined based on at least two of the following information in the PBCH:
  • PBCH DMRS PBCH physical layer information field
  • PBCH MIB information field PBCH MIB information field.
  • the N1 bit in the N bits is determined based on the PBCH DMRS in the PBCH, where N1 is an integer greater than or equal to 1 and less than N.
  • the PBCH DMRS supports P types, P is a positive integer, and the indices of the P types of the PBCH DMRS are represented by the N1 bits.
  • the value of N1 is 3; or,
  • N1 The value of N1 is 4.
  • N2 bits in the N bits are determined based on a PBCH physical layer information field in the PBCH, where N2 is an integer greater than or equal to 1 and less than N.
  • the PBCH physical layer information field includes at least one of the following: an SSB index information field and a half frame indication field.
  • the N2 bits are determined based on the SSB index information field.
  • the SSB index information field occupies 3 bits, and the N2 bits correspond to 3 bits in the SSB index information field.
  • the N2 bits are determined based on the field indication field.
  • the field indication field occupies 1 bit, and the N2 bits correspond to 1 bit in the field indication field.
  • the first part of the bits in the N2 bits is determined based on the SSB index information field, and the second part of the bits in the N2 bits is determined based on the half-frame indication field.
  • the SSB index information field occupies 3 bits
  • the half-frame indication field occupies 1 bit
  • the first part of bits corresponds to 3 bits in the SSB index information field, and the second part of bits corresponds to 1 bit in the field indication field.
  • N3 bits in the N bits are determined based on the PBCH MIB information field in the PBCH, where N3 is an integer greater than or equal to 1 and less than N.
  • the PBCH MIB information field includes at least one of the following: subcarrier offset information field of SSB, PDCCH configuration information field of SIB1, common subcarrier spacing information field, and idle bit field.
  • the N3 bit is determined based on the subcarrier offset information field of the SSB.
  • the subcarrier offset information field occupies 4 bits
  • the N3 bits correspond to the lower N3 bits in the subcarrier offset information field, and N3 is an integer greater than or equal to 1 and less than 4.
  • the N3 bits are determined based on the common subcarrier spacing information field.
  • the common subcarrier spacing information field occupies 1 bit
  • the N3 bits correspond to 1 bit in the common subcarrier spacing information field.
  • the N3 bit is determined based on the subcarrier offset information field of the SSB and the common subcarrier spacing information field.
  • the subcarrier offset information field occupies 4 bits, and the common subcarrier spacing information field occupies 1 bit,
  • the N3 bits correspond to the N3-1 bit in the subcarrier offset information field and the 1 bit in the common subcarrier spacing information field, and N3 is an integer greater than or equal to 2 and less than 4.
  • the N3 bit is determined based on the PDCCH configuration information field of the SIB1.
  • the PDCCH configuration information field of the SIB1 occupies 8 bits
  • the N3 bits correspond to the N3 bits in the PDCCH configuration information field of the SIB1, and N3 is an integer greater than or equal to 1 and less than 8.
  • the PDCCH configuration information field of the SIB1 includes a first indication field and a second indication field, the first indication field occupies 4 bits, the second indication field occupies 4 bits, and the first indication field occupies 4 bits.
  • the indication field is used to indicate the index of the first control resource set, the second indication field is used to indicate the index of the first search space,
  • the N3 bits correspond to the N3 bits in the first indication field, and N3 is an integer greater than or equal to 1 and less than 4; or,
  • the N3 bits correspond to the N3 bits in the second indication field, and N3 is an integer greater than or equal to 1 and less than 4; or,
  • the N3 bits correspond to M bits in the first indication field and N3-M bits in the second indication field, where M is an integer greater than or equal to 1 and less than N3.
  • FIG. 11 is a schematic structural diagram 2 of an information indicating device provided by an embodiment of the present application, which is applied to a network device. As shown in FIG. 11 , the information indicating device includes:
  • the sending unit 1101 is configured to send a PBCH, where the PBCH carries first indication information, where the first indication information is used to indicate an index of a candidate SSB, and the first indication information is represented by N bits, where N is an integer greater than 5.
  • the N bits are determined based on at least two of the following information in the PBCH:
  • PBCH DMRS PBCH physical layer information field
  • PBCH MIB information field PBCH MIB information field.
  • the N1 bit in the N bits is determined based on the PBCH DMRS in the PBCH, where N1 is an integer greater than or equal to 1 and less than N.
  • the PBCH DMRS supports P types, and the indices of the P types of the PBCH DMRS are represented by the N1 bits.
  • the value of N1 is 3; or,
  • N1 The value of N1 is 4.
  • N2 bits in the N bits are determined based on a PBCH physical layer information field in the PBCH, where N2 is an integer greater than or equal to 1 and less than N.
  • the PBCH physical layer information field includes at least one of the following: an SSB index information field and a half frame indication field.
  • the N2 bits are determined based on the SSB index information field.
  • the SSB index information field occupies 3 bits, and the N2 bits correspond to 3 bits in the SSB index information field.
  • the N2 bits are determined based on the field indication field.
  • the field indication field occupies 1 bit, and the N2 bits correspond to 1 bit in the field indication field.
  • the first part of the bits in the N2 bits is determined based on the SSB index information field, and the second part of the bits in the N2 bits is determined based on the half-frame indication field.
  • the SSB index information field occupies 3 bits
  • the half-frame indication field occupies 1 bit
  • the first part of bits corresponds to 3 bits in the SSB index information field, and the second part of bits corresponds to 1 bit in the field indication field.
  • N3 bits in the N bits are determined based on the PBCH MIB information field in the PBCH, where N3 is an integer greater than or equal to 1 and less than N.
  • the PBCH MIB information field includes at least one of the following: subcarrier offset information field of SSB, PDCCH configuration information field of SIB1, common subcarrier spacing information field, and idle bit field.
  • the N3 bit is determined based on the subcarrier offset information field of the SSB.
  • the subcarrier offset information field occupies 4 bits
  • the N3 bits correspond to the lower N3 bits in the subcarrier offset information field, and N3 is an integer greater than or equal to 1 and less than 4.
  • the N3 bits are determined based on the common subcarrier spacing information field.
  • the common subcarrier spacing information field occupies 1 bit
  • the N3 bits correspond to 1 bit in the common subcarrier spacing information field.
  • the N3 bit is determined based on the subcarrier offset information field of the SSB and the common subcarrier spacing information field.
  • the subcarrier offset information field occupies 4 bits, and the common subcarrier spacing information field occupies 1 bit,
  • the N3 bits correspond to the N3-1 bit in the subcarrier offset information field and the 1 bit in the common subcarrier spacing information field, and N3 is an integer greater than or equal to 2 and less than 4.
  • the N3 bit is determined based on the PDCCH configuration information field of the SIB1.
  • the PDCCH configuration information field of the SIB1 occupies 8 bits
  • the N3 bits correspond to the N3 bits in the PDCCH configuration information field of the SIB1, and N3 is an integer greater than or equal to 1 and less than 8.
  • the PDCCH configuration information field of the SIB1 includes a first indication field and a second indication field, the first indication field occupies 4 bits, the second indication field occupies 4 bits, and the first indication field occupies 4 bits.
  • the indication field is used to indicate the index of the first control resource set, the second indication field is used to indicate the index of the first search space,
  • the N3 bits correspond to the N3 bits in the first indication field, and N3 is an integer greater than or equal to 1 and less than 4; or,
  • the N3 bits correspond to the N3 bits in the second indication field, and N3 is an integer greater than or equal to 1 and less than 4; or,
  • the N3 bits correspond to M bits in the first indication field and N3-M bits in the second indication field, where M is an integer greater than or equal to 1 and less than N3.
  • FIG. 12 is a schematic structural diagram of a communication device 1200 provided by an embodiment of the present application.
  • the communication device may be a terminal device or a network device.
  • the communication device 1200 shown in FIG. 12 includes a processor 1210, and the processor 1210 can call and run a computer program from a memory to implement the methods in the embodiments of the present application.
  • the communication device 1200 may further include a memory 1220 .
  • the processor 1210 may call and run a computer program from the memory 1220 to implement the methods in the embodiments of the present application.
  • the memory 1220 may be a separate device independent of the processor 1210, or may be integrated in the processor 1210.
  • the communication device 1200 may further include a transceiver 1230, and the processor 1210 may control the transceiver 1230 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.
  • the processor 1210 may control the transceiver 1230 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.
  • the transceiver 1230 may include a transmitter and a receiver.
  • the transceiver 1230 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 1200 may specifically be the network device of the embodiment of the present application, and the communication device 1200 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For brevity, details are not repeated here. .
  • the communication device 1200 may specifically be a mobile terminal/terminal device in the embodiments of the present application, and the communication device 1200 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiments of the present application. , and will not be repeated here.
  • FIG. 13 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 1300 shown in FIG. 13 includes a processor 1310, and the processor 1310 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the chip 1300 may further include a memory 1320 .
  • the processor 1310 may call and run a computer program from the memory 1320 to implement the methods in the embodiments of the present application.
  • the memory 1320 may be a separate device independent of the processor 1310, or may be integrated in the processor 1310.
  • the chip 1300 may further include an input interface 1330 .
  • the processor 1310 can control the input interface 1330 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the chip 1300 may further include an output interface 1340 .
  • the processor 1310 may control the output interface 1340 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • FIG. 14 is a schematic block diagram of a communication system 1400 provided by an embodiment of the present application. As shown in FIG. 14 , the communication system 1400 includes a terminal device 1410 and a network device 1420 .
  • the terminal device 1410 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 1420 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application, and when the computer program runs on the computer, the computer is made to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.
  • the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application.
  • the corresponding process for the sake of brevity, will not be repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of 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 components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

Selon ses modes de réalisation, la présente demande concerne un procédé et un appareil d'indication d'informations, un dispositif terminal et un dispositif réseau. Le procédé comprend : la réception, par le dispositif de terminal, d'un canal physique de diffusion (PBCH), le canal PBCH transportant des premières informations d'indication, les premières informations d'indication étant utilisées pour indiquer un indice d'un bloc de signaux synchrones (SSB) candidat, les premières informations d'indication étant caractérisées au moyen de N bits et N étant un entier supérieur à 5.
PCT/CN2020/105272 2020-07-28 2020-07-28 Procédé et appareil d'indication d'informations, dispositif de terminal et dispositif de réseau WO2022021085A1 (fr)

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CN202080101757.3A CN115699938A (zh) 2020-07-28 2020-07-28 一种信息指示方法及装置、终端设备、网络设备

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