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WO2021088112A1 - Procédé de réception d'informations de système, procédé d'envoi, dispositif, terminal et support de stockage - Google Patents

Procédé de réception d'informations de système, procédé d'envoi, dispositif, terminal et support de stockage Download PDF

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Publication number
WO2021088112A1
WO2021088112A1 PCT/CN2019/118960 CN2019118960W WO2021088112A1 WO 2021088112 A1 WO2021088112 A1 WO 2021088112A1 CN 2019118960 W CN2019118960 W CN 2019118960W WO 2021088112 A1 WO2021088112 A1 WO 2021088112A1
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WIPO (PCT)
Prior art keywords
information
broadcast
system information
synchronization signal
indication
Prior art date
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Ceased
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PCT/CN2019/118960
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English (en)
Chinese (zh)
Inventor
赵振山
卢前溪
林晖闵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201980100116.3A priority Critical patent/CN114342484B/zh
Publication of WO2021088112A1 publication Critical patent/WO2021088112A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • This application relates to the field of mobile communications, and in particular to a system information receiving method, sending method, device, terminal, and storage medium.
  • V2X Vehicle to Everything
  • D2D device-to-device
  • SL side link
  • the vehicle network system currently supports three transmission modes: unicast, multicast and broadcast.
  • PSBCH Physical SideLink Broadcast Channel
  • PSBCH is mainly used for terminals in the cell to send system information in the cell to terminals outside the cell, thereby avoiding terminal to cell outside the cell
  • the transmission inside causes interference.
  • the PSBCH carries Time-Division Duplex-UpLink-DownLink (Time-Division Duplex-UpLink-DownLink) configuration information, which is used to indicate the TDD slot format configuration in the cell.
  • the information is sent to terminals outside the cell to prevent the terminals outside the cell from transmitting data on the downlink subframe, thereby avoiding interference with the downlink data in the cell.
  • eNode B evolved base stations
  • gNB gNode B
  • eNode B evolved base stations
  • gNB gNode B
  • Information is a technical problem that needs to be solved urgently.
  • the embodiments of the present application provide a system information receiving method, sending method, device, terminal, and storage medium, which can be used to solve the problem of simultaneous support of eNB and gNB as the synchronization source of system information due to the inconsistency of the information content in the two system information. Not the same, how to receive reasonable system information in the car networking system.
  • the technical solution is as follows:
  • a method for receiving system information including:
  • a method for sending system information including:
  • the broadcast information is sent in a side-line broadcast channel, and the indication information carried in the broadcast message is used for the receiving-side terminal to determine the system information carried in the broadcast information.
  • a method for sending system information including:
  • the first type of network device sends a system information block (System Information Block, SIB), where the system information block includes configuration information for side-line transmission, and the configuration information includes first indication information for determining a slot format;
  • SIB System Information Block
  • the indication manner of the first indication information is the same as the indication manner of the second indication information
  • the second indication information is the indication information sent by the second type of network device for determining the time slot format.
  • a method for sending system information including:
  • the terminal receives the SIB sent by the first type of network device, where the system message block includes configuration information for side-line transmission, and the configuration information includes first indication information for determining a time slot format;
  • the terminal sends a side-line broadcast channel, and the side-line broadcast channel carries the side-line broadcast information;
  • the indication manner of the first indication information is the same as the indication manner of the second indication information
  • the second indication information is the indication information sent by the second type of network device for determining the time slot format.
  • a system information receiving device including:
  • the receiving module is used to receive broadcast information in the side-line broadcast channel
  • the determining module is configured to determine the system information carried in the broadcast information according to the instruction information.
  • a system information sending device including:
  • the generation module is used to generate broadcast information according to the system information
  • the sending module is configured to send the broadcast information in a side-line broadcast channel, and the indication information carried in the broadcast message is used for the receiving-side terminal to determine the system information carried in the broadcast information.
  • a system information sending device including:
  • a sending module configured to send a SIB, the system message block includes configuration information for side-line transmission, and the configuration information includes first indication information for determining a time slot format;
  • the indication manner of the first indication information is the same as the indication manner of the second indication information
  • the second indication information is the indication information sent by the second type of network device for determining the time slot format.
  • a system information sending device including:
  • a receiving module configured to receive a SIB sent by a first type of network device, the system message block includes configuration information for sideline transmission, and the configuration information includes first indication information used to determine a time slot format;
  • a generating module configured to generate side broadcast information according to the SIB
  • a sending module configured to send a side-line broadcast channel, the side-line broadcast channel carries the side-line broadcast information
  • the indication manner of the first indication information is the same as the indication manner of the second indication information
  • the second indication information is the indication information sent by the second type of network device for determining the time slot format.
  • a terminal includes:
  • a transceiver connected to the processor
  • a memory for storing executable instructions of the processor
  • the processor is configured to load and execute the executable instructions to implement the above-mentioned method for receiving system information executed by the terminal or the method for sending system information executed by the terminal.
  • a network device includes:
  • a transceiver connected to the processor
  • a memory for storing executable instructions of the processor
  • the processor is configured to load and execute the executable instructions to implement the system information sending method executed by the network device.
  • a chip includes a programmable logic circuit and/or program instructions, which is used to implement the above-mentioned system information receiving method or system information sending method when the chip is running .
  • a computer-readable storage medium is provided, and executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by the processor to realize the above-mentioned system information.
  • the indication information is used to determine the system information carried in the broadcast information, so that regardless of whether the system information comes from the eNB or gNB, the terminals outside the cell can correctly receive and parse the system information, thereby preventing the terminals outside the cell from transmitting on the downlink subframe
  • the interference generated by the data improves the communication quality of the car networking system.
  • Fig. 1 is a block diagram of a car networking system provided by an exemplary embodiment of the present application
  • Fig. 2 is a flowchart of a method for receiving system information according to an exemplary embodiment of the present application
  • Fig. 3 is a flowchart of a method for receiving system information provided by an exemplary embodiment of the present application
  • Fig. 4 is a flowchart of a method for receiving system information provided by an exemplary embodiment of the present application
  • Fig. 5 is a flowchart of a method for receiving system information according to an exemplary embodiment of the present application
  • Fig. 6 is a flowchart of a method for sending system information provided by an exemplary embodiment of the present application.
  • Fig. 7 is a block diagram of a system information receiving device provided by an exemplary embodiment of the present application.
  • Fig. 8 is a block diagram of a system information sending device provided by an exemplary embodiment of the present application.
  • Fig. 9 is a block diagram of a system information sending device provided by an exemplary embodiment of the present application.
  • Fig. 10 is a block diagram of a system information sending device provided by an exemplary embodiment of the present application.
  • Fig. 11 is a block diagram of a terminal provided by an exemplary embodiment of the present application.
  • Vehicle to Everything is a side link (SideLink, SL) transmission technology based on D2D communication. It is different from the traditional cellular system in which communication data is received or sent through the base station.
  • the Internet of Vehicles system uses The terminal-to-terminal direct communication method has higher spectrum efficiency and lower transmission delay. Two transmission modes are defined in 3GPP: Mode A and Mode B.
  • Mode A The transmission resources of the terminal 120 are allocated by the base station 140 through the downlink, and the terminal 120 transmits data on the side link according to the transmission resources allocated by the base station 140; the base station 140 can allocate a single transmission for the terminal 120 Transmission resources can also be allocated to the terminal 120 for semi-static transmission transmission resources, as shown in FIG. 1.
  • Mode B The terminal 120 selects a resource in the resource pool for data transmission. Specifically, the terminal 120 may select transmission resources from the resource pool by means of listening, or select transmission resources from the resource pool by means of random selection.
  • Fig. 2 shows a flowchart of a method for receiving system information provided by an exemplary embodiment of the present application.
  • the method is applied to a terminal as an example.
  • the terminal may be a terminal in a car networking system.
  • the method includes:
  • Step 201 Receive broadcast information in a side-line broadcast channel
  • the broadcast information is sent by other terminals.
  • the broadcast information carries system information, which is synchronized by other terminals from a synchronization source.
  • the synchronization source is eNB or gNB.
  • the eNB is the access network equipment in the Long-Term Evolution (LTE), and the gNB is the access network equipment in the NR system.
  • LTE Long-Term Evolution
  • gNB is the access network equipment in the NR system.
  • Step 202 Obtain instruction information
  • the indication information is explicitly carried or implicitly carried by the broadcast information.
  • the indication information is used to indicate the type of system information carried in the broadcast information.
  • the indication information is used to indicate that the system information carried in the broadcast information is the first parameter set; or, the indication information is used to indicate that the system information carried in the broadcast information is the second parameter set.
  • the first parameter set is a parameter set included in the system information provided by the eNB
  • the second parameter set is a parameter set included in the system information provided by the NR.
  • Step 203 Determine the system information carried in the broadcast information according to the instruction information.
  • the terminal determines, according to the indication information, that the system information carried in the broadcast information is the first parameter set or the second parameter set.
  • the first parameter set is the system information corresponding to the first type of base station (eNB), and the first parameter set includes: system bandwidth, TDD-UL-DL configuration, direct frame number (DFN), subframe number, At least one item in the area indication information (In coverage indicator);
  • the second parameter set is system information corresponding to the second type of base station (gNB), and the second parameter set includes: BandWidth Part (BWP) indication information, TDD configuration indication information, DFN, slot number, intra-cell indication At least one item of information (In coverage indicator).
  • BWP BandWidth Part
  • the method provided in this embodiment uses indication information to determine the system information carried in the broadcast information, so that regardless of whether the system information comes from an eNB or gNB, terminals outside the cell can correctly receive and parse the system information. Furthermore, the interference caused by the data transmission on the downlink subframe by the terminal outside the cell is avoided, and the communication quality of the car networking system is improved.
  • Fig. 3 shows a flowchart of a method for receiving system information provided by an exemplary embodiment of the present application.
  • the method is applied to a terminal as an example.
  • the terminal may be a terminal in a car networking system.
  • the method includes:
  • Step 301 Generate broadcast information according to system information
  • the terminal obtains the system information synchronously from the synchronization source.
  • the synchronization source is eNB or gNB.
  • the terminal generates broadcast information, which carries system information and instruction information.
  • the indication information is explicitly carried or implicitly carried by the broadcast information.
  • the indication information is used to indicate the type of system information carried in the broadcast information.
  • the indication information is used to indicate that the system information carried in the broadcast information is the first parameter set; or, the indication information is used to indicate that the system information carried in the broadcast information is the second parameter set.
  • the first parameter set is a parameter set included in the system information provided by the eNB
  • the second parameter set is a parameter set included in the system information provided by the NR.
  • the first parameter set is system information corresponding to the first type of base station (eNB), and the first parameter set includes: system bandwidth, TDD-UL-DL configuration, direct frame number (Direct Frame Numeber, DFN), subframe number, At least one item in the area indication information (In coverage indicator).
  • the TDD-UL-DL configuration is used to determine the information of the time slot or subframe.
  • the second parameter set is the system information corresponding to the second type of base station (gNB), and the second parameter set includes: BandWidth Part (BWP) indication information, TDD configuration information, DFN, slot number, and intra-cell indication information At least one item in (In coverage indicator).
  • BWP BandWidth Part
  • the TDD configuration information is different from the TDD-UL-DL configuration information in the LTE system.
  • the TDD configuration indication information is used to indicate
  • the cell-specific slot format configuration information is either used to indicate time domain resource information that can be used for side-line transmission, or used to indicate uplink time slot or uplink time domain symbol information, etc.
  • the PSBCH includes information used to indicate the system bandwidth.
  • the bandwidth part is introduced. Therefore, the PSBCH needs to indicate the bandwidth part information.
  • Step 302 Send the broadcast information in the side-line broadcast channel, and the indication information carried in the broadcast message is used for the receiving terminal to determine the system information carried in the broadcast information.
  • the method provided in this embodiment determines the system information carried in the broadcast information through the indication information, so that regardless of whether the system information comes from the eNB or gNB, the terminals outside the cell can correctly receive and parse the system information. Furthermore, interference caused by data transmission on downlink subframes by terminals outside the cell is avoided, and the communication quality of the Internet of Vehicles system is improved.
  • Fig. 4 is a flowchart of a method for receiving system information provided by an exemplary embodiment of the present application.
  • the method is applied to a terminal as an example.
  • the terminal may be a terminal in a car networking system.
  • the method includes:
  • Step 401 The first terminal generates broadcast information according to the system information, and the broadcast information carries the target bit field and system information;
  • the terminal obtains the system information synchronously from the synchronization source.
  • the synchronization source is eNB or gNB.
  • the terminal generates broadcast information, which carries system information and instruction information.
  • the indication information is the target bit field carried in the broadcast information.
  • the target bit field is used to indicate the type of system information carried in the broadcast information.
  • the target bit field with the first value is used to indicate that the system information carried in the broadcast information is the first parameter set; or the target bit field with the second value is used to indicate the system information carried in the broadcast information
  • the system information is the second parameter set.
  • the first parameter set is a parameter set included in the system information provided by the eNB
  • the second parameter set is a parameter set included in the system information provided by the NR.
  • Step 402 The first terminal sends broadcast information in the side-line broadcast channel, and the indication information carried in the broadcast message is used for the receiving terminal to determine the system information carried in the broadcast information;
  • Step 403 The second terminal receives the broadcast information in the side broadcast channel
  • Step 404 The second terminal obtains the target bit field in the broadcast information.
  • Step 405 When the target bit field is the first value, the second terminal determines that the system information carried in the broadcast information is the first parameter set;
  • the first parameter set is system information corresponding to the first type of base station (eNB).
  • the first parameter set includes: system bandwidth, TDD-UL-DL configuration, DFN, subframe number, and cell indication information (Indicator) At least one of
  • Step 406 When the target bit field is the second value, the second terminal determines that the system information carried in the broadcast information is the second parameter set.
  • the second parameter set is system information corresponding to the second type of base station (gNB), and the second parameter set includes: BandWidth Part (BWP) indication information, TDD configuration indication information, DFN, slot number, intra-cell indication At least one item of information (In coverage indicator).
  • BWP BandWidth Part
  • the method provided in this embodiment uses explicit indication information (target bit field) to determine the system information carried in the broadcast information, so that regardless of whether the system information comes from the eNB or gNB, the terminals outside the cell can be correct
  • the system information is received and analyzed, thereby avoiding the interference caused by the terminal outside the cell transmitting data on the downlink subframe, and improving the communication quality of the car networking system.
  • Fig. 5 is a flowchart of a method for receiving system information provided by an exemplary embodiment of the present application.
  • the method is applied to a terminal as an example.
  • the terminal may be a terminal in a car networking system.
  • the method includes:
  • Step 501 The first terminal generates broadcast information according to system information, and the broadcast information carries synchronization information blocks and system information;
  • the terminal obtains the system information synchronously from the synchronization source.
  • the synchronization source is eNB or gNB.
  • the terminal generates broadcast information, and the broadcast information carries system information and a side-line synchronization signal block (SideLink SS/PBCH block, S-SSB).
  • the indication information is the synchronization signal identification number indicated by the SideLink Primary Synchronization Signal (S-PSS) and the SideLink Secondary Synchronization Signal (S-SSS) in the SSB.
  • the synchronization signal identification number belonging to the first set is used to indicate that the system information carried in the broadcast information is the first parameter set; or the synchronization signal identification number with the second set is used to indicate that the system information carried in the broadcast information
  • the system information is the second parameter set.
  • the first parameter set is a parameter set included in the system information provided by the eNB
  • the second parameter set is a parameter set included in the system information provided by the NR.
  • the first set is: ⁇ 0,1,...,167 ⁇
  • the second set is: ⁇ 168,169,...,335 ⁇ .
  • the first set is: ⁇ 1,...,167 ⁇ ; the second set is: ⁇ 170,171,...,335 ⁇ .
  • GNSS Global Navigation Satellite System
  • the SSID corresponding to the SLSS sent by it is 0.
  • the SSID corresponding to the SLSS sent by it is 168 or 169. Therefore, considering that SSIDs 168 and 169 will also be used by LTE-V2X, these two SSIDs need to be excluded from the second subset.
  • Step 502 The first terminal sends broadcast information in the side-line broadcast channel, and the indication information carried in the broadcast message is used for the receiving terminal to determine the system information carried in the broadcast information;
  • Step 503 The second terminal receives the broadcast information in the side-line broadcast channel
  • Step 504 The second terminal obtains the side-line primary synchronization signal and the side-line secondary synchronization signal from the synchronization signal block where the broadcast information is located;
  • Step 505 The second terminal determines the synchronization signal identification number according to the side-line primary synchronization signal and the side-line secondary synchronization signal;
  • the second terminal determines the synchronization signal identification number according to the following formula:
  • Step 506 When the synchronization signal identification number belongs to the first set, the second terminal determines that the system information carried in the broadcast information is the first parameter set;
  • the first set is: ⁇ 0,1,...,167 ⁇ or ⁇ 1,...,167 ⁇ .
  • the first parameter set is system information corresponding to the first type of base station (eNB).
  • the first parameter set includes: system bandwidth, TDD-UL-DL configuration, DFN, subframe number, and cell indication information (Indicator) At least one of
  • Step 507 When the synchronization signal identification number belongs to the second set, the second terminal determines that the system information carried in the broadcast information is the second parameter set.
  • the second set is: ⁇ 168,169,...,335 ⁇ or ⁇ 170,171,...,335 ⁇ .
  • the second parameter set is system information corresponding to the second type of base station (gNB), and the second parameter set includes: BandWidth Part (BWP) indication information, TDD configuration indication information, DFN, slot number, intra-cell indication At least one item of information (In coverage indicator).
  • BWP BandWidth Part
  • the method provided in this embodiment uses implicit indication information (synchronization signal identification number) to determine the system information carried in the broadcast information, so that regardless of whether the system information comes from an eNB or a gNB, terminals outside the cell can be Correctly receive and analyze the system information, thereby avoiding the interference caused by the terminal outside the cell transmitting data on the downlink subframe, and improving the communication quality of the car networking system.
  • implicit indication information synchronization signal identification number
  • the terminal receives a side-line synchronization signal (Sidelink Synchronization Signal, SLSS), and the side-line synchronization signal includes a side-line primary synchronization signal (Sidelink Primary Synchronization signal, S-PSS) and a side-line secondary synchronization signal.
  • SLSS Side-line synchronization Signal
  • S-PSS Side-line Primary Synchronization signal
  • S-SSS Side-line Secondary Synchronization signal
  • the terminal determines whether the system information carried in the broadcast information is the first parameter set or the second parameter set according to the time domain positions of the S-PSS and the S-SSS.
  • the system information carried in the broadcast information is the second parameter set, that is, the system information provided by gNB ; If the time-domain symbols for sending S-PSS and S-SSS differ by more than one time-domain symbol, it can be determined that the system information carried in the broadcast information is the first parameter set, that is, the system information provided by the eNB.
  • the first type of network equipment is the eNB in LTE
  • the second type of network equipment is the gNB in NR to illustrate the difference between the two when configuring TDD-UL-DL.
  • the eNB sends the SIB to the terminal, and the SIB carries TDD-UL-DL configuration information.
  • the TDD-UL-DL configuration information includes 7 possible formats, so 3 bits (binary 0 to 6) are required in the PSBCH carrying the SIB to indicate.
  • Table 1 schematically shows the format of TDD-UL-DL configuration information.
  • D stands for downlink
  • U stands for uplink
  • S stands for special subframe.
  • gNB sends radio resource control (English: Radio Resource Control, abbreviated as: RRC) signaling to the terminal, and the RRC signaling carries TDD configuration information (also known as TDD-UL-DL-ConfigCommon, TDD- UL-DL-configuration command) is different from the eNB's TDD-UL-DL configuration information.
  • RRC Radio Resource Control
  • TDD configuration information also known as TDD-UL-DL-ConfigCommon, TDD- UL-DL-configuration command
  • Reference sub-carrier space sub-carrier space
  • Pattern 1 TDD-UL-DL-pattern
  • TDD-UL-DL-pattern sequence ⁇
  • NR downlink time slot integer (0.. NR maximum number of time slots)
  • Uplink symbol of NR Integer (0..Maximum number of symbols of NR-1)
  • the maximum number of NR slots refers to the maximum number of slots in a 10ms period, such as 320;
  • the maximum number of symbols of NR-1 refers to the maximum index identification of symbols in a time slot, such as 14 symbols, the index starts from 0..13
  • DL-UL-transmission period refers to the period of the DL-UL pattern
  • NR downlink slots refers to the number of consecutive complete downlink slots at the beginning of each DL-UL pattern.
  • the NR downlink symbol refers to the number of consecutive DL symbols at the beginning of the time slot after the last complete DL time slot.
  • NR uplink slots refers to the number of consecutive complete UL slots at the end of each DL-UL pattern.
  • the uplink symbol of NR refers to the number of consecutive UL symbols at the end of the time slot before the first complete UL time slot.
  • Fig. 6 shows a flowchart of a method for sending system information provided by an exemplary embodiment of the present application.
  • the method is applied to the Internet of Vehicles system as an example.
  • the vehicle network system includes network equipment (such as base stations) and terminals.
  • the method includes:
  • Step 601 The first type of network device sends a SIB, where the SIB includes configuration information for side-line transmission, and the configuration information includes first indication information used to determine a time slot format;
  • the indication manner of the first indication information is the same as the indication manner of the second indication information, and the second indication information is the indication information sent by the second type of network device for determining the slot format.
  • the second indication information is carried in RRC signaling sent by the second type of network device.
  • the first indication information is carried in RRC signaling sent by the first type of network device.
  • the first type of network equipment is an eNB in an LTE system
  • the first indication information is TDD-UL-DL configuration information
  • the second type of network equipment is a gNB in an NR system
  • the second indication information is TDD configuration information. That is, the first indication information used to determine the slot format in the SIB sent by the eNB in this step uses the same indication mode (or signaling format) as the TDD configuration information sent by the gNB in the RRC signaling.
  • the first indication information includes at least one of the following information: a transmission period, the number of downlink time slots, and the number of uplink time slots.
  • the transmission period refers to the period of the uplink and downlink switching points of TDD.
  • the number of downlink time slots is the number of consecutive downlink time slots; the number of uplink time slots is the number of consecutive uplink time slots. Exemplarily, for each configuration in Table 1, it is as follows:
  • the first indication information is represented by pattern 1 in the TDD configuration information, that is, the transmission period is 5 ms, the number of (continuous) downlink time slots is 1, and the (continuous) uplink time The number of slots is 3.
  • the first indication information is represented by pattern 1 in the TDD configuration information, that is, the transmission period is 5 ms, the number of (continuous) downlink time slots is 2, and the (continuous) uplink time The number of slots is 2.
  • the first indication information is represented by pattern 1 in the TDD configuration information, that is, the transmission period is 5 ms, the number of (continuous) downlink time slots is 3, and the number of uplink time slots is 1. .
  • the first indication information is represented by pattern 1 in the TDD configuration information, that is: the transmission period is 10 ms, the number of (continuous) downlink time slots is 6, and the (continuous) uplink time The number of slots is 3.
  • the first indication information is represented by pattern 1 in the TDD configuration information, that is, the transmission period is 10 ms, the number of (continuous) downlink time slots is 7, and the (continuous) uplink time The number of slots is 2.
  • the first indication information is represented by pattern 1 in the TDD configuration information, that is: the transmission period is 10ms, the number of (continuous) downlink time slots is 8, and the (continuous) uplink time The number of slots is 1.
  • the first indication information is represented by pattern 1 and pattern 2 in the TDD configuration information.
  • the first indication information further includes the following information: the number of downlink symbols and the number of uplink symbols.
  • the configuration information of the special subframe (Special Subframe) in the TDD-UL-DL configuration information in the LTE system can also adopt the same indication method (or signaling format) as the TDD configuration information sent by the gNB in the RRC signaling. ).
  • a special subframe in the LTE system includes a downlink symbol and an uplink symbol, where the downlink symbol is located at the start position in the subframe, and the uplink symbol is located at the end position in the subframe.
  • the number of downlink symbols in the first indication information is used to indicate the number of downlink symbols in the special subframe
  • the number of uplink symbols in the first indication information is used to indicate the number of uplink symbols in the special subframe.
  • the first indication information sent by the eNB for determining the time slot format may be in the same manner as the indication information of the gNB for determining the time slot format, that is, the first indication information includes TDD-UL -DL pattern indication information.
  • the TDD-UL-DL pattern indication information includes: transmission cycle information, downlink time slot information, uplink time slot information, downlink symbol information, uplink symbol information, etc.
  • Step 602 The terminal receives the SIB sent by the first type of network device, where the SIB includes configuration information for side-line transmission, and the configuration information includes first indication information used to determine the slot format;
  • Step 603 The terminal generates side broadcast information according to the SIB;
  • Step 604 The terminal sends a side-line broadcast channel, and the side-line broadcast channel carries side-line broadcast information;
  • the method further includes the following steps:
  • Step 605 The second type of network device sends RRC signaling, where the RRC signaling includes second indication information used to determine the time slot format;
  • the second type of network device sends SIB information, and the SIB information includes second indication information for determining the slot format
  • Step 606 The terminal receives RRC signaling sent by the second type of network equipment, where the RRC signaling includes second indication information used to determine the time slot format;
  • Step 607 The terminal generates side broadcast information according to the RRC signaling
  • Step 608 The terminal sends a side-line broadcast channel, and the side-line broadcast channel carries side-line broadcast information.
  • the side-line broadcast information generated in step 604 and step 608 can maintain the same format for receiving The receiving side terminal of the sideline broadcast information does not need to distinguish whether the synchronization source is an eNB or a gNB, and can analyze the system information from the two synchronization sources by using the same analysis method.
  • the first network device sends the SIB carrying the first indication information for determining the slot format, and the indication mode of the first indication information is the same as the indication mode of the second indication information.
  • the generated side-line broadcast information can maintain the same format, and the receiving-side terminal does not need to distinguish whether the synchronization source is an eNB or a gNB, and can parse the system information from the two synchronization sources by using the same analysis method.
  • Fig. 7 is a flowchart of a system information receiving apparatus provided by an exemplary embodiment of the present application.
  • the device includes:
  • the receiving module 720 is configured to receive broadcast information in the side-line broadcast channel
  • the obtaining module 740 is used to obtain instruction information
  • the determining module 760 is configured to determine the system information carried in the broadcast information according to the instruction information.
  • the obtaining module 740 is configured to obtain indication information from broadcast information.
  • the indication information includes a target bit field in the broadcast information
  • the determining module 760 is configured to determine that the system information carried in the broadcast information is the first parameter set when the target bit field is the first value; when the target bit field is the second value, It is determined that the system information carried in the broadcast information is the second parameter set.
  • the indication information includes: a synchronization signal identification number
  • the determining module 760 is configured to determine that the system information carried in the broadcast information is the first parameter set when the synchronization signal identification number belongs to the first set; when the synchronization signal identification number belongs to the second set, It is determined that the system information carried in the broadcast information is the second parameter set.
  • the acquiring module 740 is configured to acquire the side-line primary synchronization signal and the side-line secondary synchronization signal from the synchronization signal block where the broadcast information is located; according to the side-line primary synchronization signal And the side-line secondary synchronization signal to determine the synchronization signal identification number.
  • the first set is: ⁇ 0,1,...,167 ⁇ or ⁇ 1,...,167 ⁇ ; the second set is: ⁇ 168,169,...,335 ⁇ or ⁇ 170,171,...,335 ⁇ .
  • Fig. 8 is a block diagram of a system information sending device provided by an exemplary embodiment of the present application.
  • the device includes:
  • the generating module 820 is used to generate broadcast information according to the system information
  • the sending module 840 is configured to send the broadcast information in a side-line broadcast channel, and the indication information carried in the broadcast message is used for the receiving terminal to determine the system information carried in the broadcast information.
  • the indication information includes a target bit field in the broadcast information
  • the target bit field with the first value is used for the terminal to determine that the system information carried in the broadcast information is a first parameter set
  • the target bit field with the second value is used for the terminal to determine that the system information carried in the broadcast information is a second parameter set.
  • the indication information includes: a synchronization signal identification number
  • the synchronization signal identification number belonging to the first set is used for the terminal to determine that the system information carried in the broadcast information is the first parameter set;
  • the synchronization signal identification number belonging to the second set is used for the terminal to determine that the system information carried in the broadcast information is the second parameter set.
  • the synchronization signal identification number is indicated by the side-line primary synchronization signal and the side-line secondary synchronization signal of the synchronization signal block where the broadcast information is located.
  • the first set is: ⁇ 0,1,...,167 ⁇ or ⁇ 1,...,167 ⁇ ; the second set is: ⁇ 168,169,...,335 ⁇ or ⁇ 170,171,...,335 ⁇ .
  • Fig. 9 is a block diagram of a system information sending device provided by an exemplary embodiment of the present application.
  • the device includes:
  • the sending module 920 is configured to send a SIB, where the SIB includes configuration information for side-line transmission, and the configuration information includes first indication information used to determine a time slot format;
  • the indication manner of the first indication information is the same as the indication manner of the second indication information
  • the second indication information is the indication information sent by the second type of network device for determining the time slot format.
  • the first indication information includes at least one of the following information:
  • Transmission period the number of (continuous) downlink time slots, and the number of (continuous) uplink time slots.
  • the second indication information is carried in radio resource control (Radio Resource Control, RRC) signaling sent by the second type of network device.
  • RRC Radio Resource Control
  • the first type of network equipment is an eNB in LTE
  • the second type of network equipment is a gNB in NR.
  • the first indication information is TDD-DL-UL configuration information
  • the second indication information is TDD configuration information.
  • Fig. 10 is a block diagram of a system information sending device provided by an exemplary embodiment of the present application.
  • the device includes:
  • the receiving module 1020 is configured to receive a system information block SIB sent by a first-type network device, where the system information block includes configuration information for side-line transmission, and the configuration information includes first indication information for determining a time slot format;
  • the generating module 1040 is configured to generate side-line broadcast information according to the system information block SIB;
  • the sending module 1060 is configured to send a side-line broadcast channel, where the side-line broadcast channel carries the side-line broadcast information;
  • the indication manner of the first indication information is the same as the indication manner of the second indication information
  • the second indication information is the indication information sent by the second type of network device for determining the time slot format.
  • the first indication information includes at least one of the following information:
  • Transmission period the number of (continuous) downlink time slots, and the number of (continuous) uplink time slots.
  • the second indication information is carried in a radio resource control (Radio Resource Control, RRC) instruction sent by the second type of network device.
  • RRC Radio Resource Control
  • the first type of network equipment is an eNB in LTE
  • the second type of network equipment is a gNB in NR.
  • the first indication information is TDD-DL-UL configuration information
  • the second indication information is TDD configuration information.
  • FIG. 11 shows a schematic structural diagram of a communication device (terminal or network device) provided by an exemplary embodiment of the present application.
  • the communication device includes a processor 1101, a receiver 1102, a transmitter 1103, a memory 1104, and a bus 1105.
  • the processor 1101 includes one or more processing cores, and the processor 1101 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1102 and the transmitter 1103 may be implemented as a communication component, and the communication component may be a communication chip.
  • the memory 1104 is connected to the processor 1101 through the bus 1105.
  • the memory 1104 may be used to store at least one instruction, and the processor 1101 is used to execute the at least one instruction to implement each step in the foregoing method embodiment.
  • the memory 1104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • a computer-readable storage medium stores at least one instruction, at least one program, code set, or instruction set, and the at least one instruction, the At least one program, the code set, or the instruction set is loaded and executed by the processor to implement the system information receiving method executed by the terminal provided by the foregoing method embodiments, or the system information sending method executed by the terminal, or The system information sending method implemented by the network device.
  • a computer-readable storage medium stores at least one instruction, at least one program, code set, or instruction set, and the at least one instruction, the At least one program, the code set, or the instruction set is loaded and executed by the processor to implement the system information receiving method or the system information sending method provided by the foregoing method embodiments.
  • the program can be stored in a computer-readable storage medium.
  • the storage medium mentioned can be a read-only memory, a magnetic disk or an optical disk, etc.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de réception d'informations de système, un procédé d'envoi, un dispositif, un terminal et un support de stockage se rapportant au domaine technique des communications. Le procédé comprend : la réception d'informations de diffusion dans un canal de diffusion de liaison latérale ; l'acquisition d'informations d'indication ; et la détermination, selon les informations d'indication, d'informations de système contenues dans les informations de diffusion. La présente invention détermine, en fonction des informations d'indication, les informations système contenues dans les informations de diffusion, de telle sorte que les terminaux à l'extérieur d'une cellule sont capables de recevoir et d'analyser correctement les informations système si les informations système proviennent d'un eNB ou d'un gNB, ce qui permet d'empêcher les interférences générées par les terminaux à l'extérieur de la cellule lors de la transmission de données sur des sous-trames de liaison descendante, et d'améliorer la qualité de communication de systèmes de véhicule à tout.
PCT/CN2019/118960 2019-11-06 2019-11-15 Procédé de réception d'informations de système, procédé d'envoi, dispositif, terminal et support de stockage Ceased WO2021088112A1 (fr)

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PCT/CN2019/118960 Ceased WO2021088112A1 (fr) 2019-11-06 2019-11-15 Procédé de réception d'informations de système, procédé d'envoi, dispositif, terminal et support de stockage

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