WO2020088054A1 - Procédé de configuration pour ressource de communication, appareil de communication, dispositif de communication et support de stockage - Google Patents

Procédé de configuration pour ressource de communication, appareil de communication, dispositif de communication et support de stockage Download PDF

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Publication number
WO2020088054A1
WO2020088054A1 PCT/CN2019/101930 CN2019101930W WO2020088054A1 WO 2020088054 A1 WO2020088054 A1 WO 2020088054A1 CN 2019101930 W CN2019101930 W CN 2019101930W WO 2020088054 A1 WO2020088054 A1 WO 2020088054A1
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WIPO (PCT)
Prior art keywords
ofdm symbols
terminal
symbols corresponding
mapping
time slot
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PCT/CN2019/101930
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English (en)
Chinese (zh)
Inventor
向铮铮
张锦芳
苏宏家
郭文婷
卢磊
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华为技术有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

Definitions

  • the present application relates to the field of communication technology, and in particular, to a method for configuring communication resources, a communication device, a communication device, and a storage medium.
  • the number of wireless connections worldwide is experiencing continuous high-speed growth, and various new types of wireless services are emerging, such as the Internet of Things, autonomous driving, etc. Generation, 5G) communication system, puts forward higher requirements.
  • 5G 5th Generation
  • the 5G communication system defines vehicle-to-everything (V2X) technology, device-to-device (D2D), vehicle-to-vehicle (V2V) communication, vehicle-to-pedestrian (V2V) Vehicle-to-pedestrian (V2P) communication or vehicle-to-infrastructure / network (V2I / N) communication is a technology for direct communication between terminal devices.
  • V2V, V2P, and V2I / N are collectively called V2X .
  • Vehicle-to-vehicle (V2V) communication can realize point-to-point communication between vehicles. For example, a vehicle can obtain the status information and road information of other vehicles in real time through V2V communication, so as to realize vehicle assisted driving or automatic driving.
  • next-generation wireless communication system that is, a 5G wireless communication system
  • multiple subcarrier intervals may be supported, and it is necessary to meet different needs of terminals in a variety of different scenarios.
  • the present application provides a method for configuring communication resources, a communication device, a communication device, and a storage medium to meet the needs of terminals in different communication systems.
  • the present application provides a method for configuring communication resources.
  • the method includes: a network device determines configuration information and sends control signaling to a first terminal, where the control signaling includes the configuration information and the configuration
  • the information is used to indicate the number of orthogonal frequency division multiplexing OFDM symbols corresponding to the guard interval in the time slot of a side link, and / or, the configuration information is used to indicate the automatic gain in the time slot of a side link Control the number of OFDM symbols corresponding to AGC.
  • the flexible configuration of the number of OFDM symbols corresponding to the guard interval in the time slot of one side link is realized, and / or the OFDM corresponding to the AGC in the time slot of one side link
  • the flexible configuration of the number of symbols makes the OFDM symbol corresponding to the AGC or guard interval not fixed to one OFDM symbol, thus meeting the needs of the terminal in different communication systems.
  • control signaling is downlink control information DCI.
  • DCI downlink control information
  • control signaling is high-level signaling.
  • the high-layer signaling is radio resource control RRC signaling.
  • RRC radio resource control
  • the present application provides a method for configuring communication resources.
  • the method includes: a second terminal determines configuration information and sends control signaling to a first terminal, where the control signaling includes the configuration information and the configuration information Used to indicate the number of orthogonal frequency division multiplexing OFDM symbols corresponding to the guard interval in the time slot of a side link, and / or the configuration information is used to indicate automatic gain control in the time slot of a side link The number of OFDM symbols corresponding to AGC.
  • control signaling is the first side control information.
  • the present application provides a method for configuring communication resources, including: a first terminal receives control signaling, and the control signaling includes configuration information that is used to indicate a time slot of a side link The number of orthogonal frequency division multiplexing OFDM symbols corresponding to the guard interval, and / or, the configuration information is used to indicate the number of OFDM symbols corresponding to automatic gain control AGC in the time slot of a side link; the first The terminal sends information to the third terminal according to the configuration information.
  • the first terminal receives the control signaling from a network device.
  • control signaling is downlink control information DCI.
  • control signaling is high-level signaling.
  • the high-layer signaling is radio resource control RRC signaling.
  • the first terminal receives first side control information from the second terminal.
  • the information includes second side row control information and data; the second side row control information includes the configuration information.
  • the present application provides a method for configuring communication resources, including: a first terminal receiving first indication information, where the first indication information is used to indicate a subcarrier interval of a side link; The first mapping and the subcarrier interval, determine the number of OFDM symbols corresponding to the guard interval in the time slot of a side link; and / or the first terminal determines one according to the second mapping and the subcarrier interval The number of OFDM symbols corresponding to the automatic gain control AGC in the time slot of the side link; wherein, the first mapping is a mapping relationship between the set of OFDM symbols corresponding to the guard interval and the set of subcarrier intervals, the The second mapping is the mapping relationship between the set of the number of OFDM symbols corresponding to the automatic gain control AGC and the set of subcarrier intervals, and the number of OFDM symbols corresponding to the guard interval in the time slot of the one side link belongs to the protection A set of OFDM symbols corresponding to the interval, the number of OFDM symbols corresponding to the automatic gain control AGC in the
  • the first mapping and the second mapping are predefined.
  • the present application provides a method for configuring communication resources, including: a second terminal determining first indication information according to a first mapping and / or a second mapping, where the first indication information is used to indicate a side link Subcarrier spacing; wherein, the first mapping is the mapping relationship between the set of OFDM symbols corresponding to the guard interval and the set of subcarrier spacing, and the second mapping is the number of OFDM symbols corresponding to automatic gain control AGC Mapping relationship between the set and the set of subcarrier intervals, where the subcarrier intervals belong to the set of subcarrier intervals; and the second terminal sends the first indication information to the first terminal.
  • the method before the second terminal sends the first indication information to the first terminal, the method further includes: the second terminal sends second indication information, and the second indication information Including the first mapping, and / or, the second mapping
  • the present application provides a method for configuring communication resources, including: a network device determining first indication information according to a first mapping and / or a second mapping, where the first indication information is used to indicate a sub-link Carrier interval; wherein, the first mapping is the mapping relationship between the set of OFDM symbols corresponding to the guard interval and the set of subcarrier intervals, and the second mapping is the set of OFDM symbols corresponding to the automatic gain control AGC A mapping relationship between a set of subcarrier intervals, and the subcarrier intervals belong to the set of subcarrier intervals; the network device sends the first indication information to the first terminal.
  • the method before the network device sends the first indication information to the first terminal, the method further includes: the network device sends second indication information, and the second indication information includes all The first mapping, and / or the second mapping.
  • the present application provides a communication device, including a module, component, or circuit for implementing the communication method of any one of the first to sixth aspects.
  • the present application provides a communication device, including:
  • a memory and a processor, the memory and the processor are coupled;
  • the processor is used to execute the method according to any one of the first to sixth aspects.
  • the present application provides a computer-readable storage medium that stores a computer program, which when run on a computer, causes the computer to execute any of the first to sixth aspects method.
  • the present application provides a computer program for performing the method according to any one of the first to sixth aspects when the computer program is executed by a computer.
  • the program in the tenth aspect may be stored in whole or in part on a storage medium packaged with the processor, or in part or in whole on a memory that is not packaged with the processor.
  • an embodiment of the present application further provides a communication system, including the communication device described in the seventh aspect or the eighth aspect.
  • control signaling is sent to the terminal through the network device, and the control signaling includes configuration information used to indicate the number of OFDM symbols corresponding to the guard interval in the time slot of a side link, and / Or, the configuration information is used to indicate the number of OFDM symbols corresponding to the AGC in the time slot of a side link, to achieve flexible configuration of the number of OFDM symbols corresponding to the guard interval in the time slot of a side link, And / or, the flexible configuration of the number of OFDM symbols corresponding to AGC in the time slot of a side link makes the OFDM symbol corresponding to the AGC or guard interval not fixed to 1 OFDM symbol, thus satisfying the terminal in different communication systems Demand.
  • FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of another application scenario provided by an embodiment of this application.
  • FIG. 3 is a schematic diagram of still another application scenario provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a subchannel for side communication provided by this application.
  • FIG. 6 is a schematic diagram of a V2X time slot provided by this application.
  • FIG. 7 is a schematic diagram of a communication resource configuration method provided by this application.
  • FIG. 8 is a schematic diagram of a configuration manner of a guard interval provided by this application.
  • FIG. 9 is a schematic diagram of an AGC configuration method provided by this application.
  • FIG. 10 is a schematic diagram of another method for configuring communication resources provided by this application.
  • 11 is a schematic diagram of another method for configuring communication resources provided by this application.
  • FIG. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • 15 is a schematic structural diagram of another communication device according to an embodiment of the present application.
  • 16 is a schematic structural diagram of another communication device according to an embodiment of the present application.
  • 17 is a schematic structural diagram of another communication device according to an embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of another communication device according to an embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of yet another communication device provided by an embodiment of this application.
  • FIG. 20 is a schematic structural diagram of yet another communication device provided by an embodiment of the present application.
  • FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.
  • the communication system shown in FIG. 1 mainly includes a network device 11 and a terminal 12.
  • the network device 11 may be a network-side device, for example, an access point (Access Point, AP) of a wireless local area network (Wireless Local Area Network, WLAN), an evolved base station (Evolved Node B, eNB, or eNodeB) of 4G ,
  • the next-generation communication base station such as 5G's new radio access technology (New Radio Access Technology, NR) base station (next generation Node B, gNB) or small station, micro station, can also be a relay station, access point, transmission and Reception point (Transmission and Reception Point, TRP), roadside unit (Road Side Unit, RSU), etc.
  • base stations in communication systems of different communication standards are different.
  • the base station of the 4G communication system is called LTE eNB
  • the base station of the 5G communication system is called NR gNB
  • the base station that supports both the 4G communication system and the 5G communication system is called Evolutionary Long Term Evolution (evolution, long term evolution, eLTE) ) eNB, these names are for convenience only and do not have a limiting meaning.
  • Terminal 12 is also called user equipment (User Equipment, UE), and is a device that provides voice and / or data connectivity to users, for example, handheld devices with wireless connection functions, vehicle-mounted devices, and V2V communication Capable vehicles, etc.
  • UE user equipment
  • Common terminals include, for example, mobile phones, tablet computers, notebook computers, PDAs, mobile Internet devices (MID), and wearable devices, such as smart watches, smart bracelets, and pedometers.
  • terminals 12 included in the communication system shown in FIG. 1 are only an example, and the embodiments of the present application are not limited thereto.
  • more terminals 12 that communicate with the network device 11 may also be included, which are not described one by one in the drawings for concise description.
  • the communication system shown in FIG. 1 although the network device 11 and the terminal 12 are shown, the communication system may not be limited to include the network device 11 and the terminal 12, for example, may also include a core network node or Devices and the like that carry virtualized network functions are obvious to those skilled in the art and will not be repeated here.
  • the embodiments of the present application can be applied not only to 4G wireless communication systems represented by Long Term Evolution (LTE), vehicle-to-everything (V2X) communication systems, and device-to-device , D2D) communication system, the subsequent evolution of LTE, etc., can also be applied to the next generation wireless communication system, that is, 5G communication system, and other systems that may appear in the future, such as the next-generation wifi network, 5G Internet of Vehicles, etc.
  • LTE Long Term Evolution
  • V2X vehicle-to-everything
  • D2D device-to-device
  • the subsequent evolution of LTE, etc. can also be applied to the next generation wireless communication system, that is, 5G communication system, and other systems that may appear in the future, such as the next-generation wifi network, 5G Internet of Vehicles, etc.
  • V2V communication can be directly performed between vehicles, and vehicles and vehicles can perform V2V communication within the coverage of network devices (eg, base stations).
  • V2V communication can be performed outside the coverage of the base station.
  • the base station can be used as a network device to schedule the time-frequency resources of the vehicle and the vehicle's V2V communication.
  • the V2V sender uses the base station's scheduling information to schedule Send V2V communication control messages and data to the V2V receiver. As shown in FIG.
  • the vehicle 31, the vehicle 32, and the vehicle 33 perform V2V communication within the coverage of the base station
  • the vehicle 34 and the vehicle 35 perform V2V communication outside the coverage of the base station.
  • the base station may schedule time-frequency resources for V2V communication between the vehicle 31 and the vehicle 32, and the vehicle 31 sends control messages and data of V2V communication to the vehicle 32 on the scheduled time-frequency resources according to the scheduling information of the base station.
  • the current V2V communication based on the Long Term Evolution (LTE) system includes two communication modes: the first communication mode is based on the V2V communication scheduled by the base station, and the V2V sender uses the scheduled information of the base station on the scheduled time-frequency resources Send V2V communication control messages and data to the V2V receiving end; the second communication mode is that the V2V sending end selects the time-frequency resources used for communication among the available time-frequency resources included in the resource set for V2V communication, and selects Send control messages and data on your resources.
  • the resource set used for V2V communication can be regarded as a set of time resources and frequency resources used for V2V communication.
  • the base station needs to send instruction information to the terminal to instruct the terminal: a set of time resources for V2V communication and a set of frequency domain resources for V2V communication in all time-frequency resources in the communication system.
  • the time resource specifically refers to a time slot
  • the base station sends a bit map (bit map) to the terminal.
  • the map is used to indicate the set of time slots used for V2V communication among all time slots in the communication system.
  • the bit map may specifically be a bit sequence. This embodiment does not limit the length of the bit sequence.
  • Each of the bit sequences The bit is used to identify whether a time slot in the communication system can be used for V2V communication.
  • the bit sequence includes 8 bits, and the 8 bits are 10010001.
  • the 8 bits correspond to 8 time slots.
  • the first bit 1 corresponds to time slot 0, and the second bit 0 corresponds to time slot 1.
  • the 8th bit 1 corresponds to time slot 7, indicating that time slot 0, time slot 3, time slot 7 can be used for V2V communication, time slot 1, time slot 2, time slot 4, time slot 5, time slot 6 cannot Used for V2V communication.
  • the terminal can not only determine the time slots for V2V communication among the 8 time slots 0-7, but also The bit map is periodically repeated.
  • the so-called periodic repetition can be specifically shown in FIG. 4. Assuming that time slots 0-N represent all time slots in the communication system, the terminal is using the bit map 10010001 and time slots 0-7.
  • the bit map 10010001 can also be mapped to the eight time slots after time slots 0-7, ie time slots 8-15, to determine the time slots used for V2V communication in time slots 8-15 , Further, one-to-one correspondence between the bit map 10010001 and the 8 time slots after time slots 8-15, ie, time slots 16-23, and so on, until the bit map 10010001 and the last 8 time slots in the communication system One-to-one correspondence, so as to determine the set of time slots for V2V communication among all time slots in the communication system.
  • the base station divides the frequency band used for V2V communication into several sub-channels, each sub-channel includes a certain number of resource blocks (Resource, Block, RB), and one RB is occupied in the time domain
  • a time slot occupies 12 subcarriers in the frequency domain, and the length of a subchannel and a resource block in the time domain may be the same.
  • the resource set used for V2V communication can be regarded as a set of time resources and frequency resources used for V2V communication, and the resource set used for V2V communication is a part of all time-frequency resources in the communication system, that is, communication Some of the time-frequency resources in the system can be used for V2V communication.
  • sub-channel 1, sub-channel 2, ... sub-channel N is a schematic diagram of frequency resources in the resource set for V2V communication, and the base station may use the first frequency resource in the resource set for V2V communication.
  • the sequence number of a resource block such as the sequence number of the first resource block in subchannel 1, the total number of subchannels N included in the resource set for V2V communication, the number of resource blocks included in each subchannel n CH is sent to
  • the terminal can determine the frequency resources available for V2V communication among all the spectrum resources in the communication system according to the foregoing information sent by the base station.
  • V2V communication occupies one or more sub-channels in the frequency domain and occupies a time slot in the time domain.
  • the time slot used for V2V communication is referred to as a V2V time slot or a V2X time slot.
  • a V2X time slot includes 14 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols, as shown in Figure 6, the first OFDM symbol is generally used as a terminal for automatic gain control (Automatic Gain) Control, AGC), the last symbol is used as a guard interval (gap), which is mainly used for terminal to send and receive conversion and time advance (TA) adjustment.
  • OFDM Orthogonal Frequency Division Multiplexing
  • AGC automatic gain control
  • Gap guard interval
  • the subcarrier spacing is fixed at 15Khz
  • the duration of the first OFDM symbol is 71.9 microseconds
  • the duration of the last OFDM symbol is 66.7 microseconds.
  • the subcarrier spacing is not fixed, for example, it can be 15kHz, 30kHz, 60kHz, 120kHz, 240kHz, and the greater the subcarrier spacing, the shorter the OFDM symbol in the time domain .
  • the time for sending and receiving conversion is 13 microseconds
  • the time required for the AGC is 15 microseconds
  • the time for sending and receiving conversion is 7 microseconds.
  • the time required for AGC is 10 microseconds; therefore, in a 5G communication system, when the subcarrier interval becomes larger, one OFDM symbol becomes shorter in the time domain.
  • the present application provides a method for configuring communication resources, which can flexibly configure the number of OFDM symbols corresponding to a guard interval in a time slot in a 5G communication system, and / or OFDM corresponding to AGC The number of symbols. The method is described below in conjunction with specific embodiments.
  • the communication resource configuration method described in this embodiment includes the following steps:
  • Step S701 The network device sends control signaling to the first terminal, where the control signaling includes configuration information.
  • the network device may specifically be a base station, and the first terminal, the second terminal, and the third terminal may perform sidelink communication (sidelink), and the sidelink communication may specifically be vehicle-to-outside information exchange (vehicle) to everything (V2X) communication, in which V2V communication is performed between any two of the first terminal, the second terminal, and the third terminal, and the side link may specifically be a V2X communication link or a V2V communication link.
  • the time resource specifically refers to a time slot, which is equivalent to the time slot in the LTE system.
  • the time slot for side communication is recorded as the time slot for the side link, for example, it will be used for V2X
  • the time slot for communication is denoted as V2X time slot.
  • the time slot of a side link includes 14 OFDM symbols, and the time slot of a side link here may refer to a side link
  • the time slot is not limited to a specific time slot of a specific side link.
  • a time slot of a side link may specifically be a time slot of a side link when side communication is performed between any two terminals, or any one of the resource sets used for V2V communication may be used for the side line Time slot for communication.
  • the number of OFDM symbols corresponding to the guard interval in the time slot of one side link can have multiple configuration methods, and / or, the OFDM corresponding to the automatic gain control AGC in the time slot of one side link
  • the number of symbols can be configured in multiple ways.
  • the number of OFDM symbols corresponding to the guard interval in the time slot of a side link can have the following optional configurations:
  • One configuration method is: the number of OFDM symbols corresponding to the guard interval in the time slot of a side link is 0, that is, the guard interval is not included in the time slot. Since the guard interval does not carry information, when the number of OFDM symbols corresponding to the guard interval in a time slot of a side link is 0, a time slot of a side link can transmit more information, thereby increasing the time Frequency resource utilization.
  • the number of OFDM symbols corresponding to the guard interval in the time slot of a side link is 1, that is, the guard interval occupies one OFDM symbol in the time slot, for example, the last OFDM in the time slot
  • the symbol serves as a guard interval.
  • it means that configuring an OFDM symbol for the guard interval does not affect normal communication. That is, without affecting normal communication, it is sufficient to configure an OFDM symbol for the guard interval. Multiple OFDM symbols may result in low resource utilization.
  • Another configuration method is: the number of OFDM symbols corresponding to the guard interval in a time slot of a side link is 2, that is, the guard interval occupies two OFDM symbols in the time slot, for example, the 13th of the time slot OFDM symbols and the 14th OFDM symbol are used as guard intervals.
  • the number of OFDM symbols corresponding to the guard interval in a time slot of a side link is 3, that is, the guard interval occupies 3 OFDM symbols in the time slot, for example, the 12th of the time slot OFDM symbols, the 13th OFDM symbol and the 14th OFDM symbol are used as guard intervals.
  • the base station may configure the number of OFDM symbols corresponding to the guard interval in the time slot of a side link according to the actual situation of the network or the terminal.
  • the first terminal is a V2X transmitting terminal
  • the third terminal is a V2X receiving terminal.
  • the first terminal may be an on-board device in a vehicle 31 as shown in FIG. 3, and the third terminal may be as shown in FIG.
  • the on-board equipment in the vehicle 32, the first terminal and the third terminal are within the coverage of the base station.
  • the side link between the first terminal and the third terminal is a V2X unicast link.
  • the base station can configure the current time The number of OFDM symbols corresponding to the guard interval in the slot is 0. If the V2X receiving end performs V2X transmission in the next time slot, and the guard interval is mainly used for the V2X receiving end to perform transceiver conversion, the base station can configure the number of OFDM symbols corresponding to the guard interval in the current time slot to be 1. If the V2X receiving end performs uplink transmission in the next time slot, and the guard interval is used for V2X receiving end to perform transceiver conversion and TA, the base station can configure the number of OFDM symbols corresponding to the guard interval in the current time slot to be 2 or 3.
  • the number of OFDM symbols corresponding to AGC in the time slot of a side link can have the following optional configurations:
  • One configuration method is: the number of OFDM symbols corresponding to AGC in a time slot of a side link is 0, that is, AGC is not included in the time slot. In this case, the time slot of a side link can transmit more information, thereby improving the utilization rate of time-frequency resources.
  • Another configuration method is: the number of OFDM symbols corresponding to AGC in a time slot of a side link is 1, that is, AGC occupies one OFDM symbol in the time slot, for example, the first OFDM symbol of the time slot Used for AGC. In this case, it means that allocating an OFDM symbol to AGC does not affect normal communication. That is, without affecting normal communication, it is sufficient to configure an OFDM symbol to AGC. If more OFDM is configured to AGC Symbol may cause low resource utilization.
  • Another configuration method is: the number of OFDM symbols corresponding to AGC in a time slot of a side link is 2, that is, in this time slot, AGC occupies two OFDM symbols, for example, the first OFDM of the time slot The symbol and the second OFDM symbol are used for AGC. In this case, it means that configuring AGC with two OFDM symbols does not affect normal communication. That is, without affecting normal communication, it is sufficient to configure AGC with two OFDM symbols. If AGC is configured with more OFDM symbols may result in low resource utilization.
  • Another configuration mode is: the number of OFDM symbols corresponding to AGC in a time slot of a side link is 3, that is, in this time slot, AGC occupies 3 OFDM symbols, for example, the first OFDM of the time slot The symbol, the second OFDM symbol, and the third OFDM symbol are used for AGC. In this case, it means that configuring AGC with 3 OFDM symbols does not affect normal communication. That is to say, without affecting normal communication, it is enough to configure AGC with 3 OFDM symbols. If AGC is configured with more OFDM symbols may result in low resource utilization.
  • the base station can also reasonably configure the number of OFDM symbols corresponding to AGC in the time slot of a side link according to the actual situation of the network or terminal.
  • the specific process and the base station are based on the data transmission status of the V2X receiver in the V2X unicast link
  • the number of OFDM symbols corresponding to the guard interval in the time slot configuring a side link is similar, and will not be repeated here.
  • the base station may indicate the number of OFDM symbols corresponding to the guard interval in the time slot of one side link by sending control signaling to the first terminal, and / or the time of one side link The number of OFDM symbols corresponding to AGC in the slot.
  • the base station sends control signaling to the first terminal, where the control signaling includes configuration information, and the configuration information includes a first identifier and / or a second identifier, and the first identifier is used to indicate the time of a side link The number of OFDM symbols corresponding to the guard interval in the slot.
  • the first identification may be one or more bits in the configuration information.
  • the first identifier may be two bits in the configuration information.
  • the two bits are 00, it means that the number of OFDM symbols corresponding to the guard interval in the time slot of a side link is 0; If the two bits are 01, it means that the number of OFDM symbols corresponding to the guard interval in the time slot of a side link is 1; if the two bits are 10, it means the time of a side link The number of OFDM symbols corresponding to the guard interval in the slot is two; if the two bits are 11, it means that the number of OFDM symbols corresponding to the guard interval in the time slot of a side link is three. This is only a schematic illustration. If the number of OFDM symbols corresponding to the guard interval in the time slot of a side link is greater than 3, you can also use more bits in the configuration information to identify the time of a side link The number of OFDM symbols corresponding to the guard interval in the slot.
  • the second identifier is used to indicate the number of OFDM symbols corresponding to AGC in the time slot of a side link
  • the second identifier may also be one or more bits in the configuration information.
  • the second identifier may be two bits in the configuration information. It can be understood that the two bits here and the two bits corresponding to the first identifier are bits at different positions in the configuration information.
  • the two bits corresponding to the second identification indicate the number of OFDM symbols corresponding to the AGC in the time slot of a side link and the two bits corresponding to the first identification indicate the protection in the time slot of a side link
  • the method of the number of OFDM symbols corresponding to the interval is consistent, and the specific process will not be repeated here.
  • the configuration information included in the control signaling may include an identifier, which is used to simultaneously indicate the number of OFDM symbols corresponding to the guard interval in the time slot of a side link and the corresponding AGC The number of OFDM symbols.
  • the identification may be one or more bits in the configuration information.
  • the identifier is two bits in the configuration information.
  • the two bits are 00, it indicates the number of OFDM symbols corresponding to the guard interval in the time slot of a side link and the OFDM symbols corresponding to AGC The number of both is 0; if the two bits are 01, it means that the number of OFDM symbols corresponding to the guard interval and the number of OFDM symbols corresponding to AGC in the slot of a side link are both 1; If the two bits are 10, it means that the number of OFDM symbols corresponding to the guard interval and the number of OFDM symbols corresponding to AGC in the time slot of a side link are 2; if the two bits are 11 , It means that the number of OFDM symbols corresponding to the guard interval and the number of OFDM symbols corresponding to AGC in a time slot of a side link are both 3.
  • control signaling sent by the base station to the first terminal may have the following possible situations:
  • the control signaling is Downlink Control Information (DCI). That is, the downlink control information DCI includes the configuration information, and the base station may indicate the number of OFDM symbols corresponding to the guard interval in the time slot of a side link currently scheduled by the base station by sending DCI to the first terminal, and / Or, the number of OFDM symbols corresponding to AGC in a time slot of a side link currently scheduled by the base station.
  • DCI Downlink Control Information
  • the first terminal and the third terminal perform V2X communication
  • the first terminal is a V2X transmitter
  • the third terminal is a V2X receiver
  • the base station can schedule the time-frequency resources for the V2X communication between the first terminal and the third terminal , And through DCI to dynamically indicate the number of OFDM symbols corresponding to the guard interval in the currently scheduled V2X time slot, and / or the number of OFDM symbols corresponding to the AGC in the currently scheduled V2X time slot.
  • the base station indicates the number of OFDM symbols corresponding to the guard interval in the currently scheduled V2X time slot by DCI, and the next time the base station indicates the guard interval in the scheduled V2X time slot at the next time by DCI.
  • the number of OFDM symbols is 2.
  • control signaling is high-level signaling
  • the high-level signaling is radio resource control (Radio Resource Control, RRC) signaling.
  • the base station may indicate the number of OFDM symbols corresponding to the guard interval in each time slot in the resource set for V2V communication by sending RRC signaling to the first terminal, and / or the resource set for V2V communication The number of OFDM symbols corresponding to AGC in each time slot in.
  • the RRC signaling includes configuration information including the first identifier and / or the second identifier as described above, if the first identifier indicates the OFDM symbol corresponding to the guard interval in the time slot of a side link If the number is m, it means that the number of OFDM symbols corresponding to the guard interval in each V2X slot in the resource set for V2V communication is m. Similarly, if the second identifier indicates that the number of OFDM symbols corresponding to AGC in a time slot of a side link is n, it means that the OFDM symbols corresponding to AGC in each V2X time slot in the resource set used for V2V communication The number of is n.
  • the base station may indicate that the number of OFDM symbols corresponding to the guard interval in each time slot in the resource set for V2V communication has been updated by sending RRC signaling to the first terminal again, and / or The number of OFDM symbols corresponding to AGC in each time slot in the resource set of V2V communication is updated.
  • the base station sends RRC signaling to the first terminal again.
  • the RRC signaling includes configuration information including the first identifier and / or the second identifier as described above, if the first identifier indicates a side link
  • the number of OFDM symbols corresponding to the guard interval in the timeslot is j, indicating that the number of OFDM symbols corresponding to the guard interval in each V2X time slot in the resource set used for V2V communication is updated to j.
  • the second identifier indicates that the number of OFDM symbols corresponding to AGC in a time slot of a side link is h, it means that the OFDM symbols corresponding to AGC in each V2X time slot in the resource set used for V2V communication The number of is updated to h.
  • Step S702 The first terminal sends side control information and data to the third terminal.
  • the first terminal is a V2X transmitter and the third terminal is a V2X receiver.
  • the V2X transmitter receives the control signaling sent by the base station, it sends side control information to the V2X receiver according to the configuration information in the control signaling. And data.
  • the side control information may further include the configuration information to indicate the number of OFDM symbols corresponding to the guard interval in the time slot of a side link of the V2X receiving end, and / or, the The number of OFDM symbols corresponding to AGC in the time slot.
  • the V2X sending end may include the configuration information in the side control information sent to the V2X receiving end to indicate the V2X receiving end: the currently scheduled V2X time slot The number of OFDM symbols corresponding to the guard interval in the middle, and / or the number of OFDM symbols corresponding to AGC in the currently scheduled V2X time slot.
  • the base station can dynamically indicate the number of OFDM symbols corresponding to the guard interval in the currently scheduled V2X time slot by sending DCI to the V2X sending end, and / or the OFDM symbol corresponding to the AGC in the currently scheduled V2X time slot Number.
  • the V2X sending end may include the configuration information in the side control information sent to the V2X receiving end to indicate to the V2X receiving end: The number of OFDM symbols corresponding to the guard interval in each V2X slot in the resource set for V2V communication, and / or the number of OFDM symbols corresponding to AGC in each V2X slot in the resource set for V2V communication.
  • the base station may indicate the number of OFDM symbols corresponding to the guard interval in each time slot in the resource set used for V2V communication by sending high-level signaling such as RRC signaling to the V2X sending end, and / or The number of OFDM symbols corresponding to AGC in each time slot in the resource set of V2V communication.
  • the system will pre-configure the resource set for V2V communication, for example, for each V2X time slot in the resource set for V2V communication Pre-configure the number of OFDM symbols corresponding to the guard interval in the middle, and / or pre-configure the number of OFDM symbols corresponding to the AGC in each V2X slot in the resource set used for V2V communication.
  • the method described in this embodiment is also applicable to a mini-slot.
  • the mini-slot may include a smaller number of OFDM symbols.
  • the mini-slot includes 8 OFDM symbols.
  • control signaling is sent to the terminal through the network device, and the control signaling includes configuration information used to indicate the number of OFDM symbols corresponding to the guard interval in the time slot of a side link, and / or
  • the configuration information is used to indicate the number of OFDM symbols corresponding to the AGC in the time slot of a side link, to achieve flexible configuration of the number of OFDM symbols corresponding to the guard interval in the time slot of a side link, and / or,
  • the flexible configuration of the number of OFDM symbols corresponding to AGC in the time slot of a side link makes the OFDM symbol corresponding to the AGC or guard interval not fixed to 1 OFDM symbol, thereby meeting the needs of terminals in different communication systems.
  • the base station can schedule time-frequency resources for V2X communication between the first terminal and the third terminal.
  • the second terminal with scheduling capability can also schedule the first terminal and the third terminal.
  • the terminal performs scheduling of time-frequency resources for V2X communication.
  • the second terminal may be the leader of the user group, the second terminal may schedule V2X time-frequency resources of other terminals in the user group, or the second terminal is a terminal type roadside unit (RSU), The second terminal may schedule V2X time-frequency resources of nearby terminals.
  • FIG. 10 is a schematic diagram of another method for configuring communication resources provided by the present application. As shown in FIG. 10, the method for configuring communication resources according to this embodiment includes the following steps:
  • Step 1001 The second terminal sends first sidewalk control information to the first terminal, where the first sidewalk control information includes configuration information.
  • the second terminal is a terminal with scheduling capability
  • the first terminal and the third terminal may be within the coverage of the base station or outside the coverage of the base station.
  • the first terminal and the third terminal perform V2X communication
  • the first terminal is a V2X transmitting terminal
  • the third terminal is a V2X receiving terminal.
  • the second terminal may receive the configuration information as described in the foregoing embodiment from the base station.
  • the principle for the second terminal to receive the configuration information from the base station is the same as the principle for the first terminal to receive the configuration information from the base station in the foregoing embodiment. Repeat.
  • the second terminal may also configure the number of OFDM symbols corresponding to the guard interval in the time slot of one side link and / or the number of OFDM symbols corresponding to the AGC in the time slot of one side link, and determine the configuration Information, the configuration information is used to indicate the number of OFDM symbols corresponding to the guard interval in the time slot of one side link, and / or the number of OFDM symbols corresponding to AGC in the time slot of one side link.
  • the second terminal may schedule the time-frequency resources for the V2X communication between the first terminal and the third terminal. Specifically, the second terminal sends the side control information to the first terminal.
  • the second The side control information sent by the terminal to the first terminal is recorded as first side control information.
  • the first side control information is specifically used to schedule time-frequency resources for the first terminal and the third terminal to perform V2X communication.
  • the first side The row control information includes information of scheduled time-frequency resources, for example, location information of scheduled time-frequency resources.
  • the first side row control information further includes the configuration information as described above, that is, the second terminal may send the first side row control information including the configuration information to the first terminal to indicate The number of OFDM symbols corresponding to the guard interval in the time slot of one side link of the first terminal, and / or the number of OFDM symbols corresponding to AGC in the time slot of one side link.
  • Step 1002 The first terminal sends second side control information and data to the third terminal.
  • the first terminal receives the first side line control information as described above sent by the second terminal, and determines the time when the first terminal and the third terminal perform V2X communication according to the first side line control information Frequency resource information, and the number of OFDM symbols corresponding to the guard interval in the time slot of one side link, and / or, the number of OFDM symbols corresponding to AGC in the time slot of one side link. Further, the first terminal generates second side row control information according to the first side row control information, where the first side row control information and the second side row control information include the same part of information and different parts. The same part is that the second side row control information also includes the information of the scheduled time-frequency resources, for example, the location information of the scheduled time-frequency resources.
  • the second side row control information may or may not include the configuration information described above, and the first side row control information may include modulation and coding strategies (Modulation and Coding Scheme) , MCS), may not include MCS, and the second side control information needs to include MCS.
  • MCS Modulation and Coding Scheme
  • the first terminal sends the second side line control information and data to the third terminal, and the first terminal may carry the configuration information as described above in the second side line control information to indicate the third terminal to a side chain
  • the terminal with scheduling capability sends side control information to other terminals.
  • the side control information includes configuration information, which is used to indicate the number of OFDM symbols corresponding to the guard interval in the time slot of a side link , And / or, the configuration information is used to indicate the number of OFDM symbols corresponding to AGC in the time slot of a side link, to achieve the flexibility of the number of OFDM symbols corresponding to the guard interval in the time slot of a side link Configuration, and / or flexible configuration of the number of OFDM symbols corresponding to AGC in the time slot of a side link, so that the OFDM symbol corresponding to the AGC or guard interval is not fixed to 1 OFDM symbol, thus satisfying Requirements in the communication system.
  • FIG. 11 is a schematic diagram of another method for configuring communication resources provided by the present application. As shown in FIG. 11, the method for configuring communication resources according to this embodiment includes the following steps:
  • Step S1101 The network device sends first indication information to the first terminal, where the first indication information is used to indicate the subcarrier interval of the side link.
  • the system may predefine the mapping relationship between the set of OFDM symbols corresponding to the guard interval and the set of subcarrier intervals, and / or the system predefines the set of OFDM symbols corresponding to the automatic gain control AGC
  • the mapping relationship between the subcarrier spacing set here, the mapping relationship between the set of OFDM symbols corresponding to the guard interval and the subcarrier spacing set is recorded as the first mapping
  • the mapping relationship between the set of numbers and the set of subcarrier intervals is recorded as a second mapping, where the first mapping is shown in Table 1 below, and the second mapping is shown in Table 2 below.
  • Subcarrier spacing The number of OFDM symbols included in the guard interval 15kHz 1 30kHz 1 60kHz (frequency range 1) 2 60kHz (frequency range 2) 1 120kHz 1 or 2 240kHz 2 or 3
  • Tables 1 and 2 are only schematic illustrations, and do not limit the specific mapping relationship between the subcarrier interval and the number of OFDM symbols included in the AGC, nor the number of OFDM symbols included in the subcarrier interval and guard interval The specific mapping relationship between. In some embodiments, a corresponding mapping relationship may be established only for certain subcarrier intervals, such as 30 kHz, 60 kHz, and 120 kHz.
  • the base station may be the base station shown in FIG. 3
  • the first terminal may be the vehicle-mounted device of the vehicle 31 shown in FIG. 3
  • the third terminal may be the vehicle-mounted device in the vehicle 32 shown in FIG.
  • the first terminal is a V2X transmitter
  • the third terminal is a V2X receiver.
  • the first terminal and the third terminal are within the coverage of the base station.
  • the base station may locally store the first mapping and / or the second mapping in advance.
  • the number of OFDM symbols corresponding to the interval; and / or the base station needs to instruct the first terminal to indicate the number of OFDM symbols corresponding to AGC in the time slot of a side link of the side terminal Determine the first indication information, and send the first indication information to the first terminal, where the first indication information is used to indicate the subcarrier interval of the side link, which may be the first terminal and the third terminal
  • the subcarrier interval belongs to the set of subcarrier intervals in the first map
  • / or the subcarrier interval belongs to the set of subcarrier intervals in the second map.
  • the base station when the base station needs to indicate the number of OFDM symbols corresponding to the guard interval in the time slot of a side link of the first terminal is 2 or 3, and / or, when the base station needs to indicate the first terminal of a side link
  • the base station sends first indication information to the first terminal, where the first indication information is used to indicate that the subcarrier spacing of the side link is 240 kHz.
  • Step S1102 The first terminal determines the number of OFDM symbols corresponding to the guard interval in a time slot of a side link according to the first mapping and the subcarrier interval; and / or the first terminal according to the second mapping And the subcarrier interval, the number of OFDM symbols corresponding to automatic gain control AGC in a time slot of a side link is determined.
  • the first terminal When the first terminal receives the first indication information, according to the subcarrier interval of the side link indicated by the first indication information, for example, 240 kHz, the first map stored locally is queried to determine a time slot of the side link The number of OFDM symbols corresponding to the middle guard interval is 2 or 3. And / or, the first terminal queries the locally stored second map according to the subcarrier interval of the side link indicated by the first indication information, for example, 240 kHz, to determine the OFDM corresponding to the AGC in the time slot of a side link The number of symbols is 2 or 3.
  • the first terminal may also determine the number of OFDM symbols corresponding to the guard interval in the time slot of a side link and / or the number of OFDM symbols corresponding to the AGC in the time slot of a side link.
  • the third terminal sends side control information and data.
  • the first mapping and / or the second mapping stored locally by the first terminal may be predefined by the system, or may be sent by the base station before the base station sends the first indication information to the first terminal
  • the base station sends second indication information to the first terminal, the second indication information including the first mapping, and / or, This second mapping.
  • the first indication information is received by the terminal, and the first indication information is used to indicate the subcarrier interval of the side link.
  • the terminal locally stores between the set of the number of OFDM symbols corresponding to the guard interval and the set of subcarrier intervals And / or the mapping relationship between the set of OFDM symbols corresponding to the automatic gain control AGC and the set of subcarrier intervals.
  • the terminal determines the corresponding to the subcarrier interval of the side link and the corresponding mapping relationship.
  • the number of OFDM symbols occupied by the guard interval of the sub-carrier interval, and / or the number of OFDM symbols occupied by the AGC corresponding to the sub-carrier interval is determined, thereby realizing the corresponding Flexible configuration of the number of OFDM symbols, and / or flexible configuration of the number of OFDM symbols corresponding to AGC in the time slot of a side link, so that the OFDM symbol corresponding to the AGC or guard interval is not fixed to 1 OFDM symbol, Thereby meeting the needs of terminals in different communication systems.
  • FIG. 12 is a schematic diagram of another method for configuring communication resources provided by the present application. As shown in FIG. 12, the communication resource configuration method described in this embodiment includes the following steps:
  • Step S1201 The second terminal sends first indication information to the first terminal, where the first indication information is used to indicate the subcarrier interval of the side link.
  • the second terminal may be a terminal with scheduling capability, and the second terminal may schedule time-frequency resources for V2V communication between the first terminal and the third terminal.
  • the second terminal may pre-store the first map and / or the second map as described above locally, and the first map and / or the second map are predefined by the system.
  • the second terminal When controlling the number of OFDM symbols corresponding to AGC, the second terminal determines the first indication information according to the first mapping and / or the second mapping, and sends the first indication information to the first terminal, the first indication information is used to indicate the side A sub-carrier interval of the downlink, the side link may be a link for side communication between the first terminal and the third terminal, and the sub-carrier interval belongs to the set of sub-carrier intervals in the first mapping, and / or, The subcarrier interval belongs to the set of subcarrier intervals in the second mapping.
  • the second terminal when the second terminal needs to indicate that the number of OFDM symbols corresponding to the guard interval in a time slot of a side link of the first terminal is 2 or 3, and / or, when the base station needs to instruct the first terminal of a side link
  • the second terminal sends first indication information to the first terminal, and the first indication information is used to indicate that the subcarrier spacing of the side link is 240 kHz .
  • Step S1202 The first terminal determines the number of OFDM symbols corresponding to the guard interval in a time slot of a side link according to the first mapping and the subcarrier interval; and / or the first terminal according to the second mapping And the subcarrier interval, the number of OFDM symbols corresponding to automatic gain control AGC in a time slot of a side link is determined.
  • the first terminal When the first terminal receives the first indication information, according to the subcarrier interval of the side link indicated by the first indication information, for example, 240 kHz, the first map stored locally is queried to determine a time slot of the side link The number of OFDM symbols corresponding to the middle guard interval is 2 or 3. And / or, the first terminal queries the locally stored second map according to the subcarrier interval of the side link indicated by the first indication information, for example, 240 kHz, to determine the OFDM corresponding to the AGC in the time slot of a side link The number of symbols is 2 or 3.
  • the first terminal may also determine the number of OFDM symbols corresponding to the guard interval in the time slot of a side link and / or the number of OFDM symbols corresponding to the AGC in the time slot of a side link.
  • the third terminal sends side control information and data.
  • the first mapping and / or the second mapping stored locally by the first terminal may be predefined by the system, or may be determined by the second terminal before the second terminal sends the first indication information to the first terminal. Sent by the second terminal to the first terminal, for example, before sending the first indication information to the first terminal, the second terminal sends second indication information to the first terminal, the second indication information including the first Mapping, and / or, the second mapping.
  • the first indication information is received by the terminal, and the first indication information is used to indicate the subcarrier interval of the side link.
  • the terminal locally stores between the set of OFDM symbols corresponding to the guard interval and the set of subcarrier intervals And / or the mapping relationship between the set of OFDM symbols corresponding to the automatic gain control AGC and the set of subcarrier intervals.
  • the terminal determines the corresponding to the subcarrier interval of the side link and the corresponding mapping relationship.
  • the number of OFDM symbols occupied by the guard interval of the sub-carrier interval, and / or the number of OFDM symbols occupied by the AGC corresponding to the sub-carrier interval is determined, thereby realizing the corresponding Flexible configuration of the number of OFDM symbols, and / or flexible configuration of the number of OFDM symbols corresponding to AGC in the time slot of a side link, so that the OFDM symbol corresponding to AGC or guard interval is not fixed to 1 OFDM symbol Thereby meeting the needs of terminals in different communication systems.
  • the operations or steps implemented by the terminal may also be implemented by components (such as chips or circuits) that can be used for the terminal.
  • the operations or steps implemented by the network device may also be implemented by components (such as chips or circuits) that can be used in the network device.
  • FIG. 13 shows a schematic structural diagram of a communication device.
  • the communication device may be used to implement the method of the corresponding part of the network device described in the above method embodiment, or the method of the corresponding part of the terminal such as the first terminal and the second terminal. For details, refer to the description in the above method embodiment.
  • the communication device 130 may include one or more processors 131, and the processor 131 may also be referred to as a processing unit, which may implement a certain control function.
  • the processor 131 may be a general-purpose processor or a dedicated processor.
  • the processor 131 may also store instructions 133, and the instructions may be executed by the processor, so that the communication device 130 executes the corresponding terminal or network device described in the foregoing method embodiments. Methods.
  • the communication device 130 may include a circuit that can implement the function of sending or receiving or communicating in the foregoing method embodiments.
  • the communication device 130 may include one or more memories 132 on which instructions 134 or intermediate data are stored, and the instructions 134 may be executed on the processor to cause the communication device 130 to execute The method described in the above method embodiment.
  • other relevant data may also be stored in the memory.
  • instructions and / or data may also be stored in the processor.
  • the processor and the memory may be set separately or integrated together.
  • the communication device 130 may further include a transceiver 135.
  • the processor 131 may be referred to as a processing unit.
  • the transceiver 135 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., for implementing the transceiver function of the communication device.
  • the processor is used to determine configuration information, which is used to indicate that the guard interval corresponds to the time slot of a side link
  • the number of orthogonal frequency division multiplexing OFDM symbols, and / or, the configuration information is used to indicate the number of OFDM symbols corresponding to the automatic gain control AGC in the time slot of a side link
  • the transceiver is used to send the first terminal Sending control signaling, the control signaling including the configuration information.
  • the transceiver can further complete other corresponding communication functions.
  • the processor is used to complete the corresponding determination or control operation.
  • the processor may also store corresponding instructions in the memory.
  • the transceiver may receive control signaling from the network device, and the control signaling includes the configuration information.
  • the transceiver can further complete other corresponding communication functions.
  • the processor is used to complete the corresponding determination or control operation.
  • the processor may also store corresponding instructions in the memory.
  • the transceiver may receive the side control information and data from the first terminal.
  • the transceiver can further complete other corresponding communication functions.
  • the processor is used to complete the corresponding determination or control operation.
  • the processor may also store corresponding instructions in the memory.
  • the processor is used to determine configuration information, which is used to indicate that the guard interval corresponds to the time slot of a side link
  • the number of orthogonal frequency division multiplexing OFDM symbols, and / or, the configuration information is used to indicate the number of OFDM symbols corresponding to the automatic gain control AGC in the time slot of a side link
  • the transceiver is used to send the first terminal Sending control signaling, the control signaling including the configuration information.
  • the transceiver may also be used to complete other related communication operations, and the processor may also be used to complete other corresponding determination or control operations, such as determining the information of the at least one cell.
  • corresponding instructions can also be stored in the memory.
  • the transceiver is used to receive first side line control information from the second terminal, and the first side line control information includes configuration information.
  • the transceiver can also be used to complete other related communication operations, and the processor can also be used to complete other corresponding determination or control operations.
  • corresponding instructions can also be stored in the memory.
  • the transceiver is used to receive the second side control information and data from the first terminal.
  • the transceiver can also be used to complete other related communication operations, and the processor can also be used to complete other corresponding determination or control operations.
  • corresponding instructions can also be stored in the memory.
  • the processor is used to determine the first indication information according to the first mapping and / or the second mapping, and the first indication information is used to Indicates the subcarrier interval of the side link; wherein, the first mapping is the mapping relationship between the set of OFDM symbols corresponding to the guard interval and the set of subcarrier intervals, and the second mapping corresponds to the automatic gain control AGC Mapping relationship between the set of the number of OFDM symbols and the set of subcarrier intervals, the subcarrier intervals belong to the set of subcarrier intervals; the transceiver is used to send first indication information to the first terminal, the first indication information is used Indicates the subcarrier spacing of the side link.
  • the transceiver may also be used to complete other related communication operations, and the processor may also be used to complete other corresponding determination or control operations, such as determining the information of the at least one cell.
  • corresponding instructions can also be stored in the memory.
  • the transceiver is used to receive first indication information from the network device, and the first indication information is used to indicate the sub-link Carrier spacing.
  • the transceiver may also be used to complete other related communication operations, and the processor may also be used to complete other corresponding determination or control operations, such as determining the information of the at least one cell.
  • corresponding instructions can also be stored in the memory.
  • the transceiver is used to receive side control information and data from the first terminal.
  • the transceiver may also be used to complete other related communication operations, and the processor may also be used to complete other corresponding determination or control operations, such as determining the information of the at least one cell.
  • corresponding instructions can also be stored in the memory.
  • the processor is used to determine the first indication information according to the first mapping and / or the second mapping.
  • the first indication information is used Indicate the subcarrier interval of the side link; wherein, the first mapping is the mapping relationship between the set of OFDM symbols corresponding to the guard interval and the set of subcarrier intervals, and the second mapping is automatic gain control AGC Mapping relationship between the set of corresponding OFDM symbols and the set of subcarrier intervals, where the subcarrier intervals belong to the set of subcarrier intervals;
  • the transceiver is used to send first indication information to the first terminal, the first indication information Used to indicate the subcarrier spacing of the side link.
  • the transceiver may also be used to complete other related communication operations, and the processor may also be used to complete other corresponding determination or control operations, such as determining the information of the at least one cell.
  • corresponding instructions can also be stored in the memory.
  • the transceiver is used to receive first indication information from the second terminal, and the first indication information is used to indicate the side link Subcarrier spacing.
  • the transceiver may also be used to complete other related communication operations, and the processor may also be used to complete other corresponding determination or control operations, such as determining the information of the at least one cell.
  • corresponding instructions can also be stored in the memory.
  • the transceiver is used to receive side control information and data from the first terminal.
  • the transceiver may also be used to complete other related communication operations, and the processor may also be used to complete other corresponding determination or control operations, such as determining the information of the at least one cell.
  • corresponding instructions can also be stored in the memory.
  • processors and transceivers described in this application can be implemented in integrated circuits (IC), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (application specific integrated circuits (ASIC)), and printed circuit boards ( printed circuit board (PCB), electronic equipment, etc.
  • IC integrated circuits
  • analog ICs analog ICs
  • RFICs radio frequency integrated circuits
  • mixed-signal ICs mixed-signal ICs
  • ASIC application specific integrated circuits
  • PCB printed circuit board
  • the processor and transceiver can also be manufactured using various 1C process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor (PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • N-type metal oxide semiconductor nMetal-oxide-semiconductor
  • PMOS positive channel metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device may be an independent device or may be part of a larger device.
  • the device may be:
  • a set of one or more ICs may also include storage components for storing data and / or instructions;
  • ASIC such as modem (MSM)
  • the communication device 140 includes: a processing module 141 and a sending module 142; wherein, the processing module 141 is used to determine configuration information, and the configuration information is used to indicate that a guard interval corresponds to a time slot of a side link The number of orthogonal frequency division multiplexing OFDM symbols, and / or, the configuration information is used to indicate the number of OFDM symbols corresponding to the automatic gain control AGC in the time slot of a side link; A terminal sends control signaling, the control signaling includes the configuration information.
  • control signaling is downlink control information DCI.
  • control signaling is high-level signaling.
  • the high-layer signaling is radio resource control RRC signaling.
  • the communication device may be a network device, or It can be a component of a network device (such as a chip or a circuit).
  • the processing module 141 may be a processor, and the sending module 142 may be a transceiver.
  • the processing module 141 may be a processing element with a signal processing function, and the sending module 142 may be a circuit with a sending function.
  • the communication device 150 includes: a processing module 151 and a sending module 152; wherein, the processing module 151 is used to determine configuration information, and the configuration information is used to indicate that a guard interval corresponds to a time slot of a side link The number of orthogonal frequency division multiplexing OFDM symbols, and / or, the configuration information is used to indicate the number of OFDM symbols corresponding to the automatic gain control AGC in the time slot of a side link; A terminal sends control signaling, the control signaling includes the configuration information.
  • control signaling is first side control information.
  • the communication device may be a second terminal. It may also be a component (for example, a chip or a circuit) of the second terminal.
  • the processing module 151 may be a processor
  • the sending module 152 may be a transceiver.
  • the processing module 151 may be a processing element with a signal processing function
  • the sending module 152 may be a circuit with a sending function.
  • the communication device 160 includes: a receiving module 161 and a sending module 162; wherein, the receiving module 161 is used to receive control signaling, the control signaling includes configuration information, and the configuration information is used to indicate a side The number of orthogonal frequency division multiplexing OFDM symbols corresponding to the guard interval in the time slot of the downlink, and / or, the configuration information is used to indicate the OFDM symbol corresponding to the automatic gain control AGC in the time slot of a side link The number; the sending module 162 is used to send information to the third terminal according to the configuration information.
  • the receiving module 161 is specifically configured to: receive the control signaling from the network device.
  • control signaling is downlink control information DCI.
  • control signaling is high-level signaling.
  • the high-layer signaling is radio resource control RRC signaling.
  • the receiving module 161 is specifically configured to: receive the first lateral control information from the second terminal.
  • the information includes second side row control information and data; the second side row control information includes the configuration information.
  • the communication device of the embodiment shown in FIG. 16 can be used to execute the technical solutions of the above method embodiments.
  • the communication device It may be the first terminal or a component of the first terminal (such as a chip or a circuit).
  • the receiving module 161 and the sending module 162 may be transceivers.
  • the receiving module 161 and the sending module 162 may be circuits with transceiver functions.
  • the communication device 170 includes: a receiving module 171 and a processing module 172; wherein, the receiving module 171 is used to receive first indication information, and the first indication information is used to indicate a subcarrier interval of a side link ;
  • the processing module 172 is used to determine the number of OFDM symbols corresponding to the guard interval in the time slot of a side link according to the first mapping and the subcarrier interval; and / or according to the second mapping and the subcarrier interval, Determining the number of OFDM symbols corresponding to the automatic gain control AGC in the time slot of a side link; wherein the first mapping is the mapping relationship between the set of OFDM symbols corresponding to the guard interval and the set of subcarrier intervals, The second mapping is the mapping relationship between the set of the number of OFDM symbols corresponding to the automatic gain control AGC and the set of subcarrier intervals.
  • the number of OFDM symbols corresponding to the guard interval in the time slot of the one side link belongs to The number of OFDM symbols corresponding to the guard interval, the number of OFDM symbols corresponding to the automatic gain control AGC in the time slot of the one side link belongs to the OFDM symbols corresponding to the automatic gain control AGC The number of sets, the subcarrier spacing set belonging to the subcarrier spacing.
  • the first mapping and the second mapping are predefined.
  • the communication device of the embodiment shown in FIG. 17 can be used to execute the technical solutions of the above method embodiments, and its implementation principles and technical effects are similar, and will not be repeated here.
  • the communication device may be the first terminal or the first terminal. Components (such as chips or circuits). If the communication device is the first terminal, the receiving module 171 may be a transceiver, and the processing module 172 may be a processor. If the communication device is a component of the first terminal, the receiving module 171 may be a circuit having a receiving function, and the processing module 172 may be a processing element having a signal processing function.
  • FIG. 18 is a schematic structural diagram of another communication device according to an embodiment of the present application.
  • the communication device 180 includes: a processing module 181 and a sending module 182; wherein, the processing module 181 is used to determine first indication information according to the first mapping and / or the second mapping, and the first indication information is used Indicate the subcarrier interval of the side link; wherein, the first mapping is the mapping relationship between the set of OFDM symbols corresponding to the guard interval and the set of subcarrier intervals, and the second mapping is automatic gain control AGC A mapping relationship between a set of corresponding OFDM symbols and a set of subcarrier intervals, where the subcarrier intervals belong to the set of subcarrier intervals; the sending module 182 is configured to send the first indication information to the first terminal.
  • the processing module 181 is used to determine first indication information according to the first mapping and / or the second mapping, and the first indication information is used Indicate the subcarrier interval of the side link
  • the first mapping is the mapping relationship between the set of OFDM
  • the sending module 182 is further configured to: before sending the first indication information to the first terminal, send second indication information, where the second indication information includes the first mapping, and / or Or, the second mapping.
  • the communication device of the embodiment shown in FIG. 18 can be used to execute the technical solutions of the above method embodiments, and its implementation principles and technical effects are similar, and will not be repeated here.
  • the communication device may be a network device or a second terminal, or a network Components of the device or the second terminal (such as chips or circuits).
  • the processing module 181 may be a processor, and the sending module 182 may be a transceiver.
  • the processing module 181 may be a processing element with a signal processing function, and the sending module 182 may be a circuit with a receiving function.
  • each module of the communication device shown in FIGS. 14-18 above is only a division of logical functions, and in actual implementation, it may be integrated into a physical entity in whole or in part, or may be physically separated.
  • these modules can all be implemented in the form of software calling through processing elements; they can also be implemented in the form of hardware; some modules can also be implemented in the form of software calling through processing elements, and some modules can be implemented in hardware.
  • the processing module may be a separately established processing element, or may be implemented by being integrated in a certain chip of the communication device, such as a terminal.
  • it may also be stored in the memory of the communication device in the form of a program. The processing element calls and executes the functions of the above modules.
  • each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • the above modules may be one or more integrated circuits configured to implement the above method, for example, one or more specific integrated circuits (Application Specific Integrated Circuit, ASIC), or one or more microprocessors (digital singnal processor (DSP), or, one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc.
  • ASIC Application Specific Integrated Circuit
  • DSP digital singnal processor
  • FPGA Field Programmable Gate Array
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call a program.
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • FIG. 19 is a schematic structural diagram of yet another communication device provided by an embodiment of the present application.
  • the communication device may specifically be a base station.
  • the base station includes an antenna 191, a radio frequency device 192, and a baseband device 193.
  • the antenna 191 is connected to the radio frequency device 192.
  • the radio frequency device 192 receives the information sent by the terminal through the antenna 191, and sends the information sent by the terminal to the baseband device 193 for processing.
  • the baseband device 193 processes the information of the terminal and sends it to the radio frequency device 192.
  • the radio frequency device 192 processes the terminal information and sends it to the terminal through the antenna 191.
  • the above communication device may be located in the baseband device 193.
  • each of the above modules is implemented in the form of a processing element scheduling program.
  • the baseband device 193 includes a processing element and a storage element. Perform the method in the above method embodiment.
  • the baseband device 193 may further include an interface 1933 for exchanging information with the radio frequency device 192, and the interface is, for example, a common public radio interface (common public radio interface, CPRI).
  • CPRI common public radio interface
  • the above modules may be one or more processing elements configured to implement the above method, and these processing elements are disposed on the baseband device 193, where the processing elements may be integrated circuits, for example: one or more An ASIC, or, one or more DSPs, or, one or more FPGAs, etc. These integrated circuits can be integrated together to form a chip.
  • the above modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • the baseband device 193 includes an SOC chip for implementing the above method.
  • the chip may integrate a processing element 1931 and a storage element 1932, and the processing element 1931 may call the stored program of the storage element 1932 to implement the above method or the functions of the above modules; or, at least one integrated circuit may be integrated in the chip.
  • some of the functions of the modules are realized by processing elements calling programs, and some of the functions of the modules are realized by integrated circuits.
  • the above communication device includes at least one processing element, a storage element, and a communication interface, where at least one processing element is used to execute the method provided by the above method embodiments.
  • the processing element can perform part or all of the steps in the above method embodiments in the first way: that is, execute the program stored by the storage element; or in the second way: that is, through the integrated logic circuit of the hardware in the processing element
  • the method of instructions executes some or all of the steps in the above method embodiments; of course, the methods provided in the above method embodiments may also be executed in combination with the first method and the second method.
  • the processing element here is the same as described above, it can be a general-purpose processor, such as a Central Processing Unit (CPU), or one or more integrated circuits configured to implement the above method, for example: one or more specific Integrated Circuit (Application Specific Integrated Circuit, ASIC), or, one or more microprocessors (digital microprocessors, DSP), or, one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc.
  • the storage element may be a memory or a collective term for multiple storage elements.
  • FIG. 20 is a schematic structural diagram of yet another communication device provided by an embodiment of the present application.
  • the communication device 200 includes a processor 202 and a transceiver device 203.
  • the processor 202 is used to determine configuration information, and the configuration information is used to indicate orthogonality corresponding to a guard interval in a time slot of a side link
  • the number of frequency division multiplexing OFDM symbols, and / or, the configuration information is used to indicate the number of OFDM symbols corresponding to the automatic gain control AGC in the time slot of a side link
  • the transceiver 203 is used to send to the first terminal Control signaling, the control signaling includes the configuration information.
  • the transceiver device 203 is used to receive control signaling, the control signaling includes configuration information used to indicate the number of orthogonal frequency division multiplexing OFDM symbols corresponding to the guard interval in the time slot of a side link Number, and / or, the configuration information is used to indicate the number of OFDM symbols corresponding to automatic gain control AGC in a time slot of a side link; and send information to the third terminal according to the configuration information.
  • the transceiver device 203 is used to receive first indication information, and the first indication information is used to indicate a subcarrier interval of a side link; the processor 202 is used to determine a side according to the first mapping and the subcarrier interval The number of OFDM symbols corresponding to the guard interval in the time slot of the uplink link; and / or the number of OFDM symbols corresponding to the automatic gain control AGC in the time slot of a side link according to the second mapping and the subcarrier interval .
  • a memory 201 for storing computer programs or instructions
  • a processor 202 for calling the programs or instructions.
  • the communication device of the embodiment shown in FIG. 20 can be used to execute the technical solutions of the above method embodiments. For the implementation principles and technical effects, reference may be made to the related descriptions in the method embodiments, which are not repeated here.
  • the communication device may be a terminal. It may also be a component of the terminal (such as a chip or a circuit).
  • the transceiver device 203 may be connected to an antenna.
  • the transceiver device 203 receives the information sent by the base station through the antenna, and sends the information to the processor 202 for processing.
  • the processor 202 processes the data of the terminal and sends it to the base station through the transceiver 203.
  • the processor 202 may be used to implement the corresponding functions in the processing module of the communication device shown in FIGS. 15, 17, and 18, and the transceiver device may be used to implement the communication device shown in FIGS. 15-18.
  • the corresponding function of the receiving module or sending module can also be implemented in an integrated circuit embedded in a chip of the terminal. And they can be implemented separately or integrated together.
  • the above modules can be configured as one or more integrated circuits that implement the above method, for example: one or more specific integrated circuits (Application Specific Integrated Circuit, ASIC), or, one or more microprocessors (digital microprocessors) , DSP), or, one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc.
  • ASIC Application Specific Integrated Circuit
  • DSP digital microprocessors
  • FPGA Field Programmable Gate Array
  • Embodiments of the present application also provide a computer-readable storage medium, where the computer-readable storage medium stores a computer program that, when run on a computer, causes the computer to execute the communication method described in the foregoing embodiments.
  • embodiments of the present application also provide a computer program product, which includes a computer program, which, when run on a computer, causes the computer to execute the communication method described in the foregoing embodiment.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including a server, a data center, and the like integrated with one or more available media.
  • the available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk).

Abstract

Les modes de réalisation de la présente invention concernent un procédé de configuration pour ressource de communication, un appareil de communication, un dispositif de communication et un support de stockage. Au cours du procédé, un dispositif de réseau détermine des informations de configuration et envoie une signalisation de commande à un premier terminal. La signalisation de commande contient les informations de configuration. Les informations de configuration sont utilisées pour indiquer le nombre de symboles OFDM correspondant à un intervalle de garde dans un créneau temporel d'une liaison latérale et/ou le nombre de symboles OFDM correspondant à une AGC dans un créneau temporel d'une liaison latérale, de façon à mettre en œuvre une configuration flexible du nombre des symboles OFDM correspondant à l'intervalle de garde dans le créneau temporel de la liaison latérale et/ou du nombre des symboles OFDM correspondant à l'AGC dans le créneau temporel de la liaison latérale de telle sorte que le nombre des symboles OFDM correspondant à l'AGC ou à l'intervalle de garde n'est pas établi comme étant le même, ce qui satisfait les exigences d'un terminal dans différents systèmes de communication. La présente invention peut être appliquée à l'Internet des véhicules, par exemple V2X, LTE-V et V2V, à D2D, à une conduite intelligente, à des véhicules intelligents connectés et à d'autres domaines.
PCT/CN2019/101930 2018-11-01 2019-08-22 Procédé de configuration pour ressource de communication, appareil de communication, dispositif de communication et support de stockage WO2020088054A1 (fr)

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