WO2020108043A1 - Procédés et dispositif d'envoi et de réception d'informations - Google Patents

Procédés et dispositif d'envoi et de réception d'informations Download PDF

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Publication number
WO2020108043A1
WO2020108043A1 PCT/CN2019/107301 CN2019107301W WO2020108043A1 WO 2020108043 A1 WO2020108043 A1 WO 2020108043A1 CN 2019107301 W CN2019107301 W CN 2019107301W WO 2020108043 A1 WO2020108043 A1 WO 2020108043A1
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Prior art keywords
terminal
information
identifier
feedback information
feedback
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Ceased
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PCT/CN2019/107301
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English (en)
Chinese (zh)
Inventor
张锦芳
苏宏家
向铮铮
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]

Definitions

  • Embodiments of the present application relate to the field of communication technologies, and in particular, to an information sending method, receiving method, and device.
  • LTE Long Term Evolution
  • NR New Radio
  • V2X vehicle-to-everything
  • V2X communication system including vehicle-to-vehicle (V2V), vehicle-to-Pedestrian (V2P), vehicle-to-infrastructure (V2I) and vehicle-to-network (Vehicle toto Network, V2N) intelligent transportation business. Except for V2N vehicle and network communications that use uplink and downlink, the rest of V2V/V2I/V2P data communications use side links for communications.
  • the side link (SL) is defined for direct communication between the communication device and the communication device, that is, the communication device and the communication device communicate directly without forwarding through the base station.
  • V2X services can usually be sent by terminal A to terminal B using side resources on the side link.
  • the side resource may be allocated to terminal A by the base station to which terminal A belongs, or may be determined by terminal A itself.
  • the terminal can determine the side resource by itself, a resource collision problem may occur.
  • the side resources selected by any two terminals have one or more of the same time, frequency, code, and space domains, or the side resources selected by terminal 1 and the side rows allocated by the base station to terminal 2
  • the resources have one or more of the same time domain, frequency domain, code domain and space domain.
  • the terminal determines the side link resources by itself, if the side resources selected by different terminals have the same time domain, information sent by different terminals may collide or receive errors. As the number of terminals increases or the amount of traffic increases, the reliability of side link communication cannot be satisfied.
  • Embodiments of the present invention provide an information sending method, receiving method, and device, to improve the reliability of information transmission on a side link.
  • an embodiment of the present application provides an information sending method.
  • the method includes: a first terminal generates feedback information for a second terminal.
  • the first terminal generates first information according to the feedback information and the identifier of the second terminal.
  • the first terminal sends the first information to the second terminal.
  • An embodiment of the present application provides an information sending method, which generates first information having feedback information and identification information of a second terminal through a first terminal, and sends the first information to the second terminal.
  • the second terminal receives the first information, it can determine whether the feedback information in the first information is transmitted to the second terminal according to the criteria of the second terminal in the first information.
  • the terminal can select the side resource by itself, if the side resource selected by the other terminal and the transmission resource for communication between the first terminal and the second terminal are the same, the other terminal may determine that the feedback information is not Send to other terminals.
  • the first terminal sends the first information to the second terminal, which may specifically be: the first terminal sends the first information to the second terminal on the transmission link with the second terminal.
  • the first terminal generates the first information according to the feedback information and the identifier of the second terminal, including: the first terminal generates the first information, and the first information includes the feedback information and the first The logo of the second terminal.
  • the identifier indicating the second terminal can be displayed to all terminals that receive the first information.
  • the number of bits of the feedback information is less than or equal to N, and N is a positive integer. In this way, when the number of bits of the feedback information is less than or equal to N, the identifier of the second terminal may be carried in the first information carrying the feedback information.
  • the first terminal generates the first information according to the feedback information and the identifier of the second terminal, including: the first terminal generates the first information, and the first information includes the feedback information and the second terminal Identify the scrambling check code.
  • the first information may carry the check code scrambled using the identifier of the second terminal, which not only improves the reliability of feedback information transmission, but also implicitly indicates to all terminals receiving the first information that the feedback information is transmission For the second terminal.
  • the first terminal generating the first information according to the feedback information and the identifier of the second terminal includes: the first terminal generates a check code according to the feedback information; the first terminal uses the identifier of the second terminal to The check code is scrambled to obtain a check code scrambled using the identifier of the second terminal; the first terminal generates the first information according to the feedback information and the check code scrambled using the identifier of the second terminal. This can implicitly indicate the identity of the second terminal.
  • the number of feedback information bits is greater than or equal to N+1. This is convenient for the second terminal to determine that the feedback information is transmitted to the second terminal by scrambling when the number of bits of the feedback information is greater than or equal to N+1.
  • the number of bits of the identifier of the second terminal is the same as the number of bits of the check code.
  • the feedback information is one or more of the following information: confirmation information, channel state information, and information used for effective transmission by the second terminal; wherein, the confirmation information is used to indicate the first Whether the side information acquired by the terminal from the second terminal is correctly received; wherein, the channel state information is used to indicate the channel parameter between the first terminal and the second terminal.
  • the information used for effective transmission by the second terminal includes one or more of the following information: interference information, available transmission resource information, and movement speed information.
  • an embodiment of the present application provides an information receiving method.
  • the method includes: a second terminal receives first information from a first terminal, where the first information is based on feedback information and an identification of the second terminal Generated, the second terminal determines that the feedback information is for the second terminal according to the identifier of the second terminal.
  • the first information includes feedback information and an identifier of the second terminal.
  • the method provided in this embodiment of the present application further includes: The terminal determines that the first information includes the identifier of the second terminal.
  • the second terminal determining that the feedback information is for the second terminal based on the first information includes: the second terminal is based on the identifier of the second terminal, and the feedback information is for the second terminal.
  • the number of bits of the feedback information is less than or equal to N, and N is a positive integer.
  • the first information includes feedback information and a check code scrambled by using the identifier of the second terminal.
  • the method provided in this embodiment of the present application further includes: The terminal uses the identifier of the second terminal to descramble the check code in the first information.
  • the second terminal determines that the feedback information is for the second terminal according to the first information, including: after the second terminal uses the identifier of the second terminal to descramble the check code in the first information, determine The feedback information belongs to the second terminal.
  • the number of feedback information bits is greater than or equal to N+1.
  • the number of bits of the identifier of the second terminal is the same as the number of bits of the check code.
  • the feedback information is one or more of the following information: confirmation information, channel state information, and information used for effective transmission by the second terminal; wherein, the confirmation information is used to indicate Whether the side information acquired by the first terminal from the second terminal is correctly received; wherein, the channel state information is used to indicate a channel parameter acquired by the first terminal and the second terminal.
  • the information used for effective transmission by the second terminal includes one or more of the following information: interference information, available transmission resource information, and movement speed information.
  • an embodiment of the present application provides an information sending apparatus.
  • the information sending apparatus can implement the information sending method described in the first aspect or any possible implementation manner of the first aspect, and therefore can also Achieving beneficial effects in the first aspect or any possible implementation manner of the first aspect.
  • the information sending device may be a first terminal, or may be a device that can support the first terminal to implement the first aspect or any possible implementation manner of the first aspect. For example, it is applied to the chip in the first terminal.
  • the information sending device can implement the above method through software, hardware, or executing corresponding software through hardware.
  • An example of an information sending device includes a processing unit for generating feedback information for a second terminal, and for generating first information based on the feedback information and the identification of the second terminal.
  • the sending unit is configured to send the first information to the second terminal.
  • the sending unit is specifically configured to send the first information to the second terminal on the transmission link with the second terminal.
  • the processing unit is configured to generate the first information according to the feedback information and the identifier of the second terminal, specifically including: the processing unit is specifically configured to generate the first information, and the first information includes the feedback information and the second The identification of the terminal.
  • the number of bits of the feedback information is less than or equal to N, and N is a positive integer.
  • the processing unit is configured to generate first information according to the feedback information and the identifier of the second terminal, specifically including: the processing unit is specifically configured to generate the first information, and the The first information includes the feedback information and a check code scrambled using the identifier of the second terminal.
  • the processing unit is specifically configured to generate a check code based on the feedback information, and use the identifier of the second terminal to scramble the check code to obtain the identifier of the second terminal.
  • a scrambling check code ; and generating the first information according to the feedback information and the scrambling check code using the identifier of the second terminal.
  • the number of feedback information bits is greater than or equal to N+1.
  • the number of bits of the identifier of the second terminal is the same as the number of bits of the check code.
  • the information sending apparatus may be a first terminal or a chip applied in the first terminal.
  • the information sending apparatus includes: a communication interface and one or more processes Device.
  • the information sending device communicates with other devices through a communication interface.
  • an information sending device performs an information sending method as described in the first aspect above.
  • the communication interface is used to support the information sending apparatus to perform the steps of receiving/transmitting messages/data on the side of the information sending apparatus described in any possible implementation manner of the first aspect to the first aspect.
  • the processor is used to support the information sending apparatus to perform the steps of performing message/data processing on the side of the information sending apparatus described in any possible implementation manner of the first aspect to the first aspect.
  • the communication interface and the processor of the information sending device are coupled to each other.
  • the information sending device may further include a memory for storing computer program code, and the computer program code includes instructions.
  • the processor, communication interface and memory are coupled to each other.
  • a processor may be used to replace the processing unit in one example of the third aspect
  • a communication interface may be used to replace the sending unit in one example of the third aspect.
  • Specific content may be Refer to the description in the third aspect, which will not be repeated here.
  • an embodiment of the present application provides an information receiving apparatus.
  • the information receiving apparatus can implement the information receiving method described in the second aspect or any possible implementation manner of the second aspect, and therefore can also Achieving beneficial effects in the second aspect or any possible implementation manner of the second aspect.
  • the information receiving apparatus may be a second terminal, or may be an apparatus that can support the second terminal to implement the second aspect or any possible implementation manner of the second aspect. For example, it is applied to the chip in the second terminal.
  • the information receiving apparatus may implement the above method through software, hardware, or through hardware to execute corresponding software.
  • an embodiment of the present application provides an information receiving apparatus, the apparatus includes: a receiving unit configured to receive first information from a first terminal, wherein the first information is based on feedback information and the second terminal Generated by the logo.
  • the processing unit is configured to determine that the feedback information is for the second terminal according to the identifier of the second terminal.
  • the receiving unit is specifically configured to receive the first information from the first terminal on the transmission link with the first terminal.
  • the first information includes the feedback information and the identifier of the second terminal.
  • the processing unit is configured to determine that the first information includes the identifier of the second terminal.
  • the processing unit is specifically configured to determine that the feedback information is for the second terminal according to the identifier of the second terminal.
  • the number of bits of the feedback information is less than or equal to N, and N is a positive integer.
  • the first information includes the feedback information and a check code scrambled using the identifier of the second terminal.
  • the processing unit is specifically configured to determine that the feedback information is for the second terminal when the check code in the first information is correctly decoded using the identifier of the second terminal.
  • the number of feedback information bits is greater than or equal to N+1.
  • the number of bits of the identifier of the second terminal is the same as the number of bits of the check code.
  • the information receiving apparatus may be a second terminal or a chip applied in the second terminal.
  • the information receiving apparatus includes: a communication interface and one or more processes Device.
  • the information receiving apparatus communicates with other devices through a communication interface.
  • a resource adjusting apparatus executes an information receiving method as described in the second aspect above.
  • the communication interface is used to support the information receiving apparatus to perform the steps of receiving/transmitting messages/data on the side of the information receiving apparatus described in any possible implementation manner of the second aspect to the second aspect.
  • the processor is used to support the information receiving apparatus to perform the steps of performing message/data processing on the side of the information receiving apparatus described in any possible implementation manner of the second aspect to the second aspect.
  • the communication interface and the processor of the information receiving device are coupled to each other.
  • the information receiving apparatus may further include a memory for storing computer program code, and the computer program code includes instructions.
  • the processor, communication interface and memory are coupled to each other.
  • a processor may be used in place of the processing unit in one example of the fourth aspect
  • a communication interface may be used in place of the receiving unit in one example of the fourth aspect. Specific content may be With reference to the description in the fourth aspect, it will not be repeated here.
  • an embodiment of the present application provides a computer-readable storage medium that stores instructions, and when the instructions run on a computer, the computer is allowed to execute the first aspect or various possibilities of the first aspect An information sending method described in the implementation.
  • the present application provides a computer-readable storage medium having instructions stored therein, which when executed on a computer, causes the computer to perform the second aspect or various possible implementations of the second aspect An information receiving method described in the method.
  • the present application provides a computer program product including instructions, which when executed on a computer, causes the computer to execute the information transmission method described in the first aspect or various possible implementation manners of the first aspect .
  • the present application provides a computer program product including instructions, which when executed on a computer, causes the computer to execute the information receiving method described in the second aspect or various possible implementation manners of the second aspect .
  • an embodiment of the present application provides a chip, the chip includes a processor and a communication interface, and the communication interface is coupled to the processor.
  • the processor is used to run a computer program or instructions to implement the first aspect or various aspects of the first aspect. An information sending method described in a possible implementation manner.
  • the communication interface is used to communicate with other modules than the chip.
  • an embodiment of the present application provides a chip including a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run a computer program or instruction to implement the second aspect or various aspects of the second aspect.
  • the communication interface is used to communicate with other modules than the chip.
  • an embodiment of the present application provides a communication system, including: the third aspect and an information sending device described in any one of various possible implementation manners of the third aspect, and the fourth aspect and Any one of various possible implementation manners of the fourth aspect describes an information receiving device.
  • an embodiment of the present application provides a communication device including one or more modules for implementing the methods of the first aspect and the second aspect, the one or more modules may be On the one hand, the steps of the method on the second aspect correspond.
  • FIG. 1 is a schematic diagram 1 of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a V2X communication system provided by an embodiment of the present application.
  • FIG. 3 is a second schematic diagram of a communication system provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of data transmission provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a resource scheduling mode provided by an embodiment of this application.
  • FIG. 6 is a schematic flowchart of an interaction between an information sending method and a receiving method provided by an embodiment of this application;
  • FIG. 12 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram 1 of a first terminal according to an embodiment of the present application.
  • FIG. 14 is a second schematic structural diagram of a first terminal according to an embodiment of this application.
  • 15 is a schematic structural diagram 1 of a second terminal according to an embodiment of the present application.
  • 16 is a second schematic structural diagram of a second terminal according to an embodiment of the present application.
  • 17 is a schematic structural diagram of a chip provided by an embodiment of the present application.
  • the words “first” and “second” are used to distinguish the same items or similar items whose functions and functions are basically the same.
  • the first terminal and the second terminal are only for distinguishing different terminals, and their order is not limited.
  • the words “first” and “second” do not limit the number and execution order, and the words “first” and “second” do not necessarily mean different.
  • the network architecture and business scenarios described in the embodiments of the present application are intended to more clearly explain the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. With the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • At least one refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the relationship of the related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the related object is a “or” relationship.
  • “At least one of the following” or a similar expression refers to any combination of these items, including any combination of a single item or a plurality of items.
  • At least one item (a) in a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be a single or multiple .
  • Sidelink refers to: a link defined for direct communication between the terminal and the terminal, that is, a link that communicates directly between the terminal and the terminal without being forwarded by the base station.
  • the sidelink resource refers to the resource that terminal 1 transmits sidelink information with terminal 2 on the side link.
  • Sidelink information refers to user data or control information transmitted by any two terminals on the sidelink.
  • the system architecture and business scenarios described in the embodiments of the present application are to more clearly explain the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. With the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • the method provided is applied to an LTE system, an NR system, or a 5G network as an example for description.
  • the base station 10 cannot perform resource scheduling .
  • terminal 1 and terminal 3 send data to terminal 2 at the same time, if the side resource selected by terminal 1 is the same as the side resource allocated by base station 10 to terminal 3, due to resource collision, the transmission of terminal 1 and terminal 3 is at terminal 2
  • the terminals may not be solvable, or the communication distance may be different. For example, terminal 3 is closer to terminal 2, then terminal 2 can decode the data sent by terminal 3, and terminal 2 cannot decode the data of terminal 1.
  • terminal 2 will feedback ACK to terminal 3 on the feedback channel. Since the time-frequency resource occupied by the feedback channel corresponds to the side data channel resource, the ACK sent by terminal 2 will be received by terminal 1 and terminal 3 at the same time. If the feedback information is a sequence, for example, ACK uses sequence 1, and NACK uses sequence 2, respectively generated according to the configuration of the sending terminal, for example, the configuration of terminal 3, and/or the identification of terminal 3. Exemplarily, terminal 2 can generate a correct sequence for receiving data from terminal 3 and send it, so that terminal 3 can recognize that the data sent to terminal 2 is correctly received. Since terminal 1 does not receive feedback information for itself, the terminal 1 will recognize that the data sent to terminal 2 was not received correctly.
  • the feedback information is a sequence
  • ACK uses sequence 1
  • NACK uses sequence 2 respectively generated according to the configuration of the sending terminal, for example, the configuration of terminal 3, and/or the identification of terminal 3.
  • terminal 2 can generate a correct sequence for receiving data from terminal 3 and send it, so that terminal 3 can recognize that the data sent to terminal
  • the terminal 1 and the terminal 3 will think that the data sent to the terminal 2 is correctly received, but in fact, the terminal 2 cannot solve the terminal 1’s data.
  • the above problem is unavoidable in the scenario where at least one terminal can select side resources by itself when two terminals communicate, and it will become very serious with the increase in the number of terminals or the increase in business volume, which will require some reliability Higher business has a serious impact.
  • an embodiment of the present application provides an information sending method.
  • the first terminal generates the first information according to the feedback information for the second terminal and the identifier of the second terminal, and then sends the first information to the second terminal, so that the second terminal is receiving
  • the first information it can be determined that the feedback information belongs to the second terminal, and when other terminals receive the first information, they can determine that the feedback information is not sent to themselves, thereby avoiding misjudgment.
  • the V2X communication system includes vehicle-to-vehicle (V2V), vehicle-to-Pedestrian (V2P) (including pedestrians, cyclists, drivers, or passengers), and vehicle-to-infrastructure (Vehicle to Infrastructure (V2I) (for example, vehicle to roadside unit (RSU) communication) and vehicle to network (Vehicle to Network (V2N) (for example, vehicle to base station/network communication) intelligent transportation business. Except for V2N vehicle and network communication using uplink and downlink, the rest of V2V/V2I/V2P data communication uses side links for communication.
  • V2V vehicle-to-vehicle
  • V2P vehicle-to-Pedestrian
  • V2I vehicle to Infrastructure
  • V2N vehicle to Network
  • terminal-type RSUs There are two types of roadside devices: terminal-type RSUs. Because they are deployed on the roadside, the terminal-type RSUs are in a non-mobile state and do not need to consider mobility.
  • the base station type RSU can provide timing synchronization and resource scheduling to the vehicles it communicates with.
  • FIG. 3 shows a schematic diagram of a communication system provided by an embodiment of the present application.
  • the communication system includes: a wireless communication device 101, one or more first terminals 102 communicating with the wireless communication device 101, and At least one second terminal 103 and third terminal 104 that the first terminal 102 communicates with.
  • the wireless communication device 101 has a Uu link with the first terminal 102 or the second terminal 103 (hereinafter the second transmission link is taken as an example). There is a side link between the first terminal 102 and the second terminal 103 (hereinafter, the first transmission link is taken as an example). There is a side link between the first terminal 102 and the third terminal 104.
  • the first terminal 102 and the second terminal 103 may transmit V2X services to each other on the sidelink, which may also be referred to as side information.
  • the first terminal 102 may transmit the uplink Uu service to the wireless communication device 101 on the Uu link, or may receive the downlink Uu service sent by the wireless communication device 101 on the Uu link.
  • V2X services are transmitted on the side resources on the sidelink
  • Uu services are transmitted on the Uu resources on the Uu link.
  • the side resources include a set of time-domain resources and frequency-domain resources.
  • the time domain resources may be continuous or non-contiguous resources in the time domain.
  • time granularities such as frame, subframe (Subframe), slot (Slot), mini-slot, and symbol (Symbol).
  • the time domain resource may include one or more consecutive or non-continuous symbols, and some or all of the one or more symbols may belong to one or more time slots.
  • the frequency band used for side communication can be divided into several subchannels (subchannels), each subchannel contains a certain number, which can be no less than one, Resource Block (Resource Block, RB).
  • One side transmission can occupy one or more sub-channels and is used to transmit SL scheduling assignment (SA) control messages (sidelink control information, SCI) and user data.
  • SA SL scheduling assignment
  • the wireless communication device 101 may provide a basic device of a wireless network, such as a cellular network base station, etc., to provide support for communication between terminals, for example, to provide communication between the wireless communication device 101 and the first terminal 102.
  • a basic device of a wireless network such as a cellular network base station, etc.
  • the wireless communication device 101 may be an evolved Node (Based Station, eNB) in a long-term evolution (LTE).
  • eNB evolved Node
  • LTE long-term evolution
  • the eNB accesses the 4G core network (for example, Evolved Packet Core (EPC)) through the S1 interface.
  • EPC Evolved Packet Core
  • the LTE system can evolve into an eLTE system.
  • the eNB in the eLTE system can be connected to the EPC network, and can also be connected to the Next-Generation Core (NG-Core) network.
  • NG-Core Next-Generation Core
  • the wireless communication device 101 may also be the Next Generation Node B (gNB) in the NR system in the NR.
  • the gNB is connected to the NG-Core network through the N2 interface.
  • the wireless communication device 101 may be a traditional macro base station eNB (evolved node B) in a traditional Universal Mobile Telecommunications System (UMTS)/LTE wireless communication system, or may be a Heterogeneous Network (HetNet) scenario
  • the micro base station eNB may be a baseband processing unit (Base and Band Unit, BBU) and a radio frequency unit (Remote Radio Unit, RRU) in a distributed base station scenario, and may be a cloud radio access network (Cloud Radio Access Access Netowrk, CRAN) scenario
  • BBU baseband processing unit
  • RRU Remote Radio Unit
  • the baseband pools BBUpool and RRU can be gNB in the future wireless communication system.
  • the interface of the first terminal 102 and the second terminal 103, the first terminal 102 and the third terminal 104 through direct connection communication may be the interface 1, for example, the interface 1 may be referred to as the PC5 interface, using a dedicated frequency band for car networking (such as 5.9GHz ), and the interface between the first terminal 102 or the second terminal 103 and the wireless communication device 101 may be referred to as interface 2 (for example, Uu interface), using a cellular network frequency band (for example, 1.8 GHz).
  • a dedicated frequency band for car networking such as 5.9GHz
  • interface 2 for example, Uu interface
  • a cellular network frequency band for example, 1.8 GHz
  • the terminal is a device with wireless communication function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons, and Satellite first class).
  • the terminal is also called user equipment (user equipment (UE), mobile station (MS), mobile terminal (MT) and terminal equipment, etc.). It is a kind of device that provides voice and/or data connectivity to users. device.
  • the terminal includes a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • the terminal can be: a mobile phone (mobile phone), a tablet computer, a laptop computer, a palmtop computer, a mobile internet device (mobile internet device, MID), a wearable device (such as a smart watch, smart bracelet, pedometer, etc.), In-vehicle equipment (for example, cars, bicycles, electric cars, airplanes, ships, trains, high-speed rail, etc.), virtual reality (virtual reality) equipment, augmented reality (augmented reality) equipment, industrial control (industrial Wireless terminals, smart home devices (for example, refrigerators, TVs, air conditioners, electric meters, etc.), smart robots, workshop equipment, wireless terminals in self-driving (self-driving), wireless terminals in remote surgery (remote medical), smart Wireless terminals in the grid (smart), transportation terminals (transportation safety), wireless terminals in the smart city (smart city), or wireless terminals in the smart home (smart home), flight equipment (for example, smart Robots, hot air balloons, drones, airplanes,
  • the terminal device is a terminal device that often works on the ground, for example, a vehicle-mounted device.
  • chips deployed in the above-mentioned devices such as a system-on-a-chip (SOC), baseband chips, etc., or other chips with communication functions may also be called terminals.
  • SOC system-on-a-chip
  • baseband chips etc.
  • other chips with communication functions may also be called terminals.
  • the terminal may be a vehicle-mounted communication module or other embedded communication module, or a user's handheld communication device, including a mobile phone, a tablet computer, and so on.
  • the side resources can be determined by the following two methods:
  • the wireless communication device corresponding to the terminal allocates time-frequency resources to the terminal within the coverage of the wireless communication device.
  • the terminal sends the control message and user data of the side communication on the scheduled time-frequency resource according to the scheduling information of the wireless communication device, which is called LTE mode 3 transmission mode or scheduled transmission mode.
  • the new radio (NR) includes NR mode-1, where NR mode-1 also includes: dynamically scheduled transmission by the base station, semi-static transmission configured by the base station, and unscheduled transmission configured by the base station.
  • Method 2 the terminal selects the time-frequency resources used for communication among the available time-frequency resources included in the side resources, and sends control messages and data on the selected time-frequency resources, which is called LTE mode 4 transmission mode or Unscheduled transmission mode.
  • LTE mode 4 transmission mode the terminal obtains available time-frequency resources through a sensing mechanism.
  • An important step of sensing includes: decoding all SA control messages on frequency domain resources used for side transmission in a period of time in history to obtain time-frequency resource information occupied and reserved by other terminals, so as to select time-frequency resources by themselves When sending data, you can avoid these occupied and reserved time-frequency resources to avoid data transmission failures caused by resource conflicts.
  • NR mode-2 in the new radio (NR) includes: self-selected transmission resource transmission based on sensing, auxiliary resource selection, pre-configured scheduling-free transmission, and transmission scheduled by other users.
  • Hidden terminals can be in several situations as shown in Figure 1.
  • Terminal 2 and terminal 3 are within the coverage of the base station, and the base station schedules side transmission, and other terminals 1, 4, 4, 5 and 6 are outside the coverage of the base station.
  • terminal 3 and terminal 1 send side information to terminal 2 at the same time in side resource 1, the problem of hiding the terminal is formed.
  • terminal 3 and terminal 5 cannot receive the side information sent by each other, or terminal 4 and terminal 6 cannot receive the side information sent by the other, then terminal 1 and terminal 3, terminal 3 and terminal 5, terminal 4 and terminal 6 form a hidden terminal.
  • HARQ feedback problem take terminal 1 and terminal 3 as a pair of hidden terminals as an example to illustrate. Since terminal 1 is outside the coverage of the base station, resource scheduling cannot be performed by the base station. In this case, if terminal 1 and terminal 3 both send Terminal 2 sends data on the side resources. If the side resource selected by terminal 1 is the same as the side resource scheduled by the base station for terminal 3, due to resource collision, terminal 1 sends data 2 to terminal 2, and terminal 3 may send data to terminal 1 as follows:
  • Scenario 2 it may also be due to the different communication distance between the terminals. For example, terminal 3 is closer to terminal 2 than terminal 1, then terminal 2 can correctly decode the data 1 sent by terminal 3, but terminal 2 does not correctly decode terminal 1. Data sent 2.
  • the feedback channel may be a physical sidelink feedback channel (physical sidelink feedback channel, PSFCH) or a physical sidelink control channel (physical sidelink control channel, PSCCH).
  • PSFCH physical sidelink feedback channel
  • PSCCH physical sidelink control channel
  • Side data can be sent on the data channel.
  • the data channel may be a physical sidelink shared channel (physical sidelink shared channel, PSSCH).
  • the embodiments of the present application provide an information sending method.
  • the sender for example, the first terminal
  • the embodiments of the present application can be applied to the unicast and multicast transmission of the side link between the vehicle and the vehicle/person/infrastructure in the IoV scenario, which is mainly used in a scenario where a terminal uses NR mode-2 transmission, including: All communication equipment uses NR mode-2 mode transmission. Or as shown in FIG. 5, some terminals use NR mode-2 mode for transmission, and some terminals use NR mode-1 mode for transmission, while NR mode-1 and NR mode-2 modes transmit a shared time-frequency resource scenario.
  • FIGS. 1, 2, 4 and 5 only two terminals are taken as an example.
  • an execution body of an information sending method may be a first terminal or a chip applied in the first terminal
  • an execution body of an information receiving method may be a second terminal or may be applied to The chip in the second terminal.
  • the following embodiments take an example in which an execution subject of an information transmission method is a first terminal and an execution subject of an information reception method is a second terminal.
  • FIG. 6 shows a schematic diagram of the interaction between an information sending method and a receiving method provided by an embodiment of the present application.
  • the method includes:
  • Step 101 The first terminal generates feedback information for the second terminal.
  • the feedback information in the embodiment of the present application is one or more of the following information: confirmation information, channel state information, and information used for effective transmission by the second terminal.
  • the confirmation information is used to indicate whether the side information acquired by the first terminal from the second terminal is correctly received.
  • the channel state information is used to indicate the channel parameters acquired by the first terminal and the second terminal.
  • the information used for effective transmission by the second terminal includes one or more of the following information: interference information, available transmission resource information, and movement speed information.
  • the feedback information includes confirmation information, channel state information, and one or more of the information used for effective transmission by the second terminal. There may be any one of the following cases (1) to (7):
  • the feedback information includes confirmation information.
  • the feedback information includes: channel state information.
  • the feedback information includes: information used for effective transmission by the second terminal.
  • the feedback information includes confirmation information and channel state information.
  • the feedback information includes confirmation information and information used for effective transmission by the second terminal.
  • the feedback information includes channel state information and information used for effective transmission by the second terminal.
  • the feedback information includes channel state information, confirmation information, and information used for effective transmission by the second terminal.
  • channel status information may include one or more of the following information: channel quality information (channel quality indicator, CQI), precoding matrix indication (precoding matrix indication, PMI), rank Indication (rank), reference signal received power (reference signal received power (RSRP), received signal strength indication (received signal strength indicator) RSSI (RSSI), reference signal reception quality (reference signal received quality (RSRQ), detection reference Signal resource indicator (sounding reference signal indicator, SRI), channel state information refer to signal resource indicator (Channel status information-reference signal resource indicator, CRI) and other information to identify channel status.
  • channel quality information channel quality indicator, CQI
  • precoding matrix indication precoding matrix indication, PMI
  • rank Indication rank
  • reference signal received power reference signal received power
  • RSSI received signal strength indication
  • RSSI reference signal reception quality
  • SRI detection reference Signal resource indicator
  • channel state information refer to signal resource indicator (Channel status information-reference signal resource indicator, CRI) and other information to identify channel status.
  • the feedback information may further include: the second terminal sends side information to the first terminal on the first transmission link.
  • the first terminal determines whether the side information is correctly received.
  • the feedback information includes confirmation information
  • the confirmation information is used to indicate that the side information is correctly received. If the side information is not received correctly, the confirmation information is used to indicate that the side information is not received correctly.
  • the feedback information includes confirmation information, which is used to indicate that the side information is correctly received. If the side information is not received correctly, the feedback information does not include confirmation information, that is, the first terminal does not feedback the confirmation information.
  • the feedback information does not include confirmation information, that is, the first terminal does not feedback the confirmation information. If the side information is not received correctly, the feedback information includes confirmation information, that is, feedback confirmation information, which is used to indicate that the side information is not received correctly.
  • the confirmation information may be a hybrid automatic repeat request (HARQ) feedback made by the first terminal for the side information sent by the second terminal.
  • HARQ hybrid automatic repeat request
  • the confirmation information may be an acknowledgment (ACK).
  • ACK acknowledgment
  • the confirmation information may be a negative acknowledgement (Negative Acknowledgement, NACK).
  • the confirmation information includes a 1-bit ACK or NACK. For example, 1 means ACK and 0 means NACK. If it is received correctly, the confirmation message is "1". If the first terminal feeds back multiple data packets, it can arrange the feedback bits in cascade, such as feedback of the reception of 2 data packets, 00 means that NACK is fed back to both data packets, and 10 means that the first data packet returns ACK. , The second data packet feeds back NACK, and so on, no more details.
  • the method provided in this embodiment of the present application further includes: the first terminal measures the channel parameter between the second terminal and the second terminal.
  • the method provided by the embodiment of the present application further includes: the first terminal measures interference information, available transmission resource information, and movement speed information.
  • Step 102 The first terminal generates first information according to the feedback information and the identifier of the second terminal.
  • the identifier of the second terminal may be a radio network temporary identifier (RNTI) configured by the network, or an international mobile subscriber identity (IMSI), SAE temporary mobile subscriber identifier (SAE) Temporary Mobile Subscriber Identity, S-TMSI), MME Temporary Mobile Subscriber Identity (MME), Mobile International Subscriber Identity, M-TMSI, International Mobile Equipment Identity (International) mobile Subscriber Identity, IMSI, Globally Unique Temporary Identifier , GUTI), IP address, etc. used to identify the user in the network one of the logo or a combination of multiple logos.
  • IMSI international mobile subscriber identity
  • SAE SAE temporary mobile subscriber identifier
  • S-TMSI SeE Temporary Mobile Subscriber Identity
  • MME MME Temporary Mobile Subscriber Identity
  • MME Mobile International Subscriber Identity
  • International Mobile Equipment Identity International Mobile Equipment Identity
  • IMSI Globally Unique Temporary Identifier
  • IP address etc. used to identify the user in the network one of the logo or a
  • the identifier of the second terminal may also be a user terminal index (UE index), a link index (link index), etc. that communicate with the first terminal, and are used to uniquely identify the user communicating with the first terminal in the network Logo.
  • UE index user terminal index
  • link index link index
  • the first information is used to indicate that the feedback information is for the second terminal.
  • Step 103 The first terminal sends the first information to the second terminal.
  • the first terminal may send the first information to the second terminal on the side link with the second terminal.
  • the first terminal may send the first information to the second terminal on the sidelink resource on the sidelink, and the sidelink between the first terminal and the second terminal is the first transmission link.
  • the sidelink resource may be allocated for the first terminal by the base station accessed by the first terminal, or may be selected by the first terminal by itself, which is not limited in this embodiment of the present application.
  • Step 104 The second terminal receives the first information from the first terminal.
  • the second terminal may receive the first information from the first terminal on the side link with the first terminal.
  • the second terminal may receive the first information on the sidelink resource of the side link.
  • Step 105 The second terminal determines that the feedback information is for the second terminal according to the identifier of the second terminal.
  • the first terminal when the first terminal sends the first information, the first information may be received by other terminals than the second terminal. At this time, the other terminal may determine that the feedback information is not transmitted to itself according to the identifier of the second terminal.
  • the second terminal may determine whether the side information sent to the first terminal is correctly received by the first terminal.
  • the second terminal may perform resource selection, modulation and coding selection, and multiple-input (Multiple-Input, Multiple-Output, MIMO) selection according to the CSI.
  • multiple-input Multiple-Input, Multiple-Output, MIMO
  • An embodiment of the present application provides an information sending method, which generates first information having feedback information and identification information of a second terminal through a first terminal, and sends the first information to the second terminal.
  • the second terminal receives the first information, it can determine whether the feedback information in the first information is transmitted to the second terminal according to the criteria of the second terminal in the first information.
  • the terminal can select the side resource by itself, if the side resource selected by the other terminal and the transmission resource for communication between the first terminal and the second terminal are the same, the other terminal may determine that the feedback information is not Send to other terminals. In this way, when determining that the feedback information is not sent to itself, other terminals may not parse the feedback information. On the other hand, it can avoid misjudgment caused by other terminals mistakenly thinking that the feedback information is sent to themselves. Therefore, the reliability of the side link transmission can be improved.
  • the above embodiment mainly describes the process of the first terminal sending the first information.
  • the following will mainly describe the specific content of the first information, that is, how the first information indicates the second terminal to which the feedback information is transmitted.
  • Example 1 the first information display indicates the second terminal.
  • step 102 may specifically be implemented in the following manner: the first terminal generates first information, and the first information includes feedback information and an identifier of the second terminal.
  • the number of feedback information bits in this example 1 is less than or equal to N, where N is a positive integer.
  • the identifier of the second terminal is used to identify the second terminal.
  • the identifier of the second terminal may be the identifier of the second terminal (that is, the identifiers of all the second terminals), or may be the identifiers of some second terminals.
  • all the second terminal identifiers include 16 bits. Taking some second terminal identifiers including 8 bits as an example, some second terminal identifiers can take the first 8 of 16 bits. The bits or the last 8 bits, or any other 8 bits included in the 16 bits, are not limited here.
  • FIG. 6 takes the feedback information including confirmation information, CSI, and information used for effective transmission by the second terminal as an example.
  • the first terminal may also determine whether to verify the first information according to the obtained number of bits of the first information. For example, taking the number of bits of the first information obtained in FIG. 7 as C as an example, if the first terminal determines that the number of bits of the first information C ⁇ M, the first terminal does not check the first information (for example, cyclic redundancy Check (Cyclic Redundancy Check, CRC check). If the number C of bits of the first information is greater than or equal to (M+1), the first terminal checks the first information.
  • CRC check Cyclic Redundancy Check
  • the length of the check code when checking the first information may be selected according to the number of bits of the first information. For example, if the number C of bits of the first information satisfies: (M+1) ⁇ C ⁇ L, then when the first terminal checks the first information, the first terminal uses the first cycle generating polynomial (the The length is L1) The first check code of the first information is generated, and the length of the first check code of the first information is L1.
  • the first terminal uses the second cycle generating polynomial when the first terminal checks the first information (the length of the second cycle generating polynomial is L2)
  • the first check code of the feedback information is generated, and the length of the second check code of the first information is L2. Among them, L1 ⁇ L2.
  • K, L2, L1, M, and L are positive integers.
  • the embodiments of the present application do not limit the values of K, L2, L1, M, and L.
  • the length of the CRC check code of the first information is 6 bits.
  • FIG. 9 takes C ⁇ 20 and takes the CRC check on the first information as an example to obtain the CRC check code, and the length of the CRC check code of the first information is 11 bits.
  • Example 1 before step 105, the method provided by the embodiment of the present application further includes:
  • the second terminal determines that the first information includes the identifier of the second terminal.
  • the second terminal may parse the first information to obtain feedback information and the identification of the second terminal.
  • step 105 may be specifically implemented in the following manner: the second terminal determines that the feedback information is for the second terminal according to the identifier of the second terminal.
  • the second terminal determines the identifier of the second terminal carried in the first information, and the second terminal determines that the feedback information is for the second terminal.
  • Example 2 The first information implicitly indicates the second terminal.
  • step 102 may be specifically implemented in the following manner: the first terminal generates first information, and the first information includes feedback information and a check code scrambled by using the identifier of the second terminal.
  • step 102 may be implemented in the following manner:
  • the first terminal generates a check code according to the feedback information.
  • the first terminal scrambles the check code using the identifier of the second terminal to obtain the check code scrambled using the identifier of the second terminal.
  • the first terminal generates the first information according to the feedback information and the check code scrambled using the identifier of the second terminal.
  • the first terminal generating the check code according to the feedback information includes: the first terminal uses CRC to check the feedback information to generate the check code.
  • the first terminal according to the feedback information and the check code scrambled using the identifier of the second terminal includes: the first terminal processes (eg, encodes) the feedback information and the check code scrambled using the identifier of the second terminal To generate the first message.
  • the number of bits of feedback information is greater than or equal to N+1.
  • the number of bits of the identifier of the second terminal is the same as the number of bits of the CRC check code.
  • the first terminal uses a third loop generator polynomial (the length of the third loop generator polynomial is L3) to generate a third check of the feedback information Code, and then the identifier of the second terminal of length L3 scrambles the third check code.
  • the first terminal uses a fourth loop generator polynomial (the length of the fourth loop generator polynomial is L4) to generate the fourth check code of the feedback information , And then scramble the fourth check code using the identifier of the second terminal of length L4.
  • the length of the third check code sequence is shorter than the length of the fourth check code sequence.
  • the method provided by the embodiment of the present application further includes: the second terminal uses the identifier of the second terminal to descramble the check code in the first information.
  • step 105 in the embodiment of the present application may be specifically implemented in the following manner: the second terminal uses the identifier of the second terminal to descramble the check code in the first information correctly, and then it is determined that the feedback information is directed to the second terminal.
  • the first information includes the feedback information and the check code scrambled using the identifier of the second terminal. Therefore, if other terminals receive the first information, they will use their respective terminal identifiers to descramble the first information, However, other terminals cannot correctly descramble the first information, and therefore cannot obtain feedback information. In this case, only the terminal that descrambles the first information correctly can determine that the feedback information is for itself.
  • each network element such as the first terminal and the second terminal.
  • each network element such as the first terminal and the second terminal.
  • it includes hardware structures and/or software modules corresponding to performing each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed by hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
  • each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module in.
  • the above integrated modules may be implemented in the form of hardware or software function modules. It should be noted that the division of the modules in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another division manner. The following uses the corresponding function to divide each function module as an example:
  • the method of the embodiment of the present application has been described above with reference to FIG. 6, and the information sending apparatus and the information receiving apparatus for performing the above method provided by the embodiment of the present application will be described below. Those skilled in the art can understand that the methods and apparatuses can be combined and referenced with each other.
  • the information sending apparatus provided in the embodiments of the present application can perform the above information sending, that is, the steps performed by the first terminal and the information receiving apparatus can perform the above embodiments
  • the information receiving method that is, the steps performed by the second terminal.
  • FIG. 12 it is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • the structure of the first terminal and the second terminal can refer to the structure shown in FIG. 12.
  • the terminal includes at least one processor 1211 and at least one transceiver 1212.
  • the terminal may further include at least one memory 1213.
  • the processor 1211, the memory 1213 and the transceiver 1212 are connected.
  • the terminal 121 may further include an output device 1214, an input device 1215, and one or more antennas 1216.
  • the antenna 1216 is connected to the transceiver 1212, and the output device 1214 and the input device 1215 are connected to the processor 1211.
  • the processor 1211 may be a baseband processor or a CPU, and the baseband processor and the CPU may be integrated together or separated.
  • the processor 1211 may be used to implement various functions for the terminal, for example, for processing communication protocols and communication data, or for controlling the entire terminal device, executing software programs, processing software program data; or for assisting completion Calculation processing tasks, such as graphics and image processing or audio processing; or the processor 1211 is used to implement one or more of the above functions
  • the output device 1214 communicates with the processor 1211 and can display information in various ways.
  • the output device 1214 may be a liquid crystal display (Liquid Crystal Display, LCD), a light emitting diode (Light Emitting Diode, LED) display device, a cathode ray tube (Cathode Ray Tube, CRT) display device, or a projector (projector) Wait.
  • the input device 1215 communicates with the processor 1211 and can accept user input in a variety of ways.
  • the input device 1215 may be a mouse, keyboard, touch screen device, or sensor device.
  • the processor in the embodiment of the present application may include at least one of the following types: general-purpose central processing unit (Central Processing Unit, CPU), digital signal processor (Digital Signal Processor, DSP), microprocessor, Application-specific integrated circuit (ASIC), microcontroller (Microcontroller Unit, MCU), field programmable gate array (Field Programmable Gate Array, FPGA), or integrated circuit for implementing logic operations .
  • the processor 1211 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. At least one processor 1211 may be integrated in one chip or located on multiple different chips.
  • the memory in the embodiment of the present application may include at least one of the following types: read-only memory (ROM) or other types of static storage devices that can store static information and instructions, and random access memory (random access memory, RAM) or other types of dynamic storage devices that can store information and instructions can also be electrically erasable programmable read-only memory (Electrically, programmable-only memory, EEPROM).
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • the memory may also be a compact disc-read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.) , Disk storage media or other magnetic storage devices, or any other media that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
  • CD-ROM compact disc-read-only memory
  • optical disc storage including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.
  • Disk storage media or other magnetic storage devices or any other media that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
  • the memory 1213 may exist independently and be connected to the processor 1211.
  • the memory 1213 may also be integrated with the processor 1211, for example, integrated in a chip.
  • the memory 1213 can store program codes for executing the technical solutions of the embodiments of the present application, and is controlled and executed by the processor 1211.
  • Various executed computer program codes can also be regarded as a driver of the processor 1211.
  • the processor 1211 is used to execute the computer program code stored in the memory 1213, so as to implement the technical solution in the embodiments of the present application.
  • the transceiver 1212 may be used to support the reception or transmission of radio frequency signals between the first terminal and the base station or between the first terminal and the second terminal.
  • the transceiver 1212 may be connected to the antenna 1216.
  • the transceiver 1212 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 1216 can receive radio frequency signals, and the receiver Rx of the transceiver 1212 is used to receive the radio frequency signals from the antenna, and convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and convert the digital
  • the baseband signal or digital intermediate frequency signal is provided to the processor 1211, so that the processor 1211 performs further processing on the digital baseband signal or digital intermediate frequency signal, such as demodulation processing and decoding processing.
  • the transmitter Tx in the transceiver 1212 is also used to receive the modulated digital baseband signal or digital intermediate frequency signal from the processor 1211, and convert the modulated digital baseband signal or digital intermediate frequency signal into a radio frequency signal, and pass a Or multiple antennas 1216 transmit the radio frequency signal.
  • the receiver Rx can selectively perform one-level or multi-level down-mixing processing and analog-to-digital conversion processing on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency signal.
  • the sequence is adjustable.
  • the transmitter Tx can selectively perform one-level or multi-level up-mixing processing and digital-to-analog conversion processing on the modulated digital baseband signal or digital intermediate frequency signal to obtain a radio frequency signal.
  • the up-mixing processing and digital-to-analog conversion processing The sequence is adjustable.
  • Digital baseband signals and digital intermediate frequency signals can be collectively referred to as digital signals.
  • the first terminal may be executed by the structure shown in FIG. 12, wherein the actions sent or received by the first terminal may be performed by the processor of the first terminal 1211 is completed by the antenna 1216.
  • the actions of determining or processing the first terminal may be completed by the processor 1211 of the first terminal.
  • the processor 1211 of the first terminal may support the first terminal to generate feedback information for the second terminal, and generate the first information according to the feedback information and the identifier of the second terminal.
  • the processor 1211 of the first terminal sends the first information to the second terminal through the antenna 1216.
  • the processor 1211 of the first terminal may support the first terminal to generate first information, and the first information includes feedback information and an identifier of the second terminal.
  • the processor 1211 of the first terminal may support the first terminal to generate first information, and the first information includes feedback information and a check code scrambled by using the identifier of the second terminal.
  • the processor 1211 of the first terminal may support the first terminal to generate a check code according to the feedback information. And the processor 1211 of the first terminal may support the first terminal to scramble the check code by using the identifier of the second terminal to obtain the check code scrambled by using the identifier of the second terminal. The processor 1211 of the first terminal may support the first terminal to generate the first information according to the feedback information and the check code scrambled by the identifier of the second terminal.
  • the second terminal may be executed by the structure shown in FIG. 12, wherein the actions sent or received by the second terminal may be processed by the second terminal
  • the device 1211 is completed through the antenna 1216, and the actions such as the determination or processing by the second terminal may be performed by the processor 1211 of the second terminal.
  • the processor 1211 of the second terminal may receive the first information from the first terminal through the antenna 1216.
  • the processor 1211 of the second terminal may support the second terminal to determine that the feedback information is for the second terminal according to the identifier of the second terminal.
  • each step in the method performed by the first terminal or the second terminal there are units or modules in the first terminal or the second terminal that perform each step of the method; executed by the first terminal
  • For each step in the method there is a unit or module in the first terminal that performs each step in the method; for each step in the method performed by the second terminal, there is a step in the second terminal that performs each step in the method Unit or module.
  • FIG. 13 shows a schematic structural diagram of an information sending device provided by an embodiment of the present application.
  • the information sending device may be the first terminal in the embodiment of the present application, or may be applied to the first terminal. chip.
  • the information sending device includes a processing unit 201 and a sending unit 202.
  • the processing unit 201 is used to generate feedback information for the second terminal, and to generate first information according to the feedback information and the identifier of the second terminal.
  • the sending unit 202 is configured to send the first information to the second terminal.
  • processing unit 201 and the sending unit 202 perform the above process, for the specific process involved, reference may be made to the relevant descriptions at steps 101 to 103 in the foregoing method embodiment, and details are not described herein again.
  • the information sending device may further include a storage unit for storing signaling or data or computer program code.
  • the sending unit 202 in this application may be a first terminal or a transmitter applied to a chip in the first terminal, and the transmitter may generally be used in conjunction with a receiver of the first terminal or applied to the first
  • the receiver of the chip in the terminal is integrated together to be used as a transceiver.
  • the specific transceiver may also be called a communication interface or a transceiver circuit.
  • the processing unit 201 may be integrated in the first terminal or a processor applied to the chip in the first terminal on.
  • FIG. 14 shows a schematic diagram of a possible logical structure of the information sending device involved in the above embodiment.
  • the information sending device may be a first terminal or a chip applied in the first terminal.
  • the information sending device includes: a processing module 112 and a communication module 113.
  • the processing module 112 is used to control and manage the operation of the information sending device, for example, the processing module 112 is used to perform the steps of message or data processing on the side of the information sending device, for example, to support the information sending device to execute the Step 101 and step 102.
  • the communication module 113 is used to support the information sending device to execute step 103 in the above embodiment. And/or other processes performed by the information sending device for the techniques described herein.
  • the information sending device may further include a storage module 111 for storing program codes and data of the information sending device.
  • the processing module 112 may be a processor or a controller, for example, it may be a central processor unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present invention.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a digital signal processor and a microprocessor, and so on.
  • the communication module 113 may be a transceiver, a transceiver circuit, a communication interface, or the like.
  • the storage module 111 may be a memory.
  • the processing module 112 is the processor 1211
  • the communication module 113 is the communication interface or the transceiver 1212
  • the storage module 111 is the memory 1213
  • the information sending device involved in the present application may be the device shown in FIG.
  • FIG. 15 shows a schematic structural diagram of an information receiving apparatus provided by an embodiment of the present application.
  • the information receiving apparatus may be the second terminal in the embodiment of the present application, or may be applied to the second terminal. chip.
  • the information receiving device includes a receiving unit 301 and a processing unit 302.
  • the receiving unit 301 is used to receive the first information from the first terminal.
  • the processing unit 302 is configured to determine that the feedback information is for the second terminal according to the identifier of the second terminal.
  • the information receiving apparatus may further include a storage unit for storing signaling or data or computer program code.
  • the receiving unit 301 in this application may be a second terminal or a receiver applied to a chip in the second terminal, and the receiver may generally be used in conjunction with the receiver of the second terminal or the second terminal.
  • the transmitter of the chip in the terminal is integrated together to be used as a transceiver.
  • the specific transceiver may also be called a communication interface or a transceiver circuit.
  • the processing unit 302 may be integrated in the second terminal or a processor applied to the chip in the second terminal on.
  • FIG. 16 shows a schematic diagram of a possible logical structure of the information receiving device involved in the above embodiment.
  • the information receiving device may be a second terminal or a chip applied in the second terminal.
  • the information receiving device includes: a processing module 212 and a communication module 213.
  • the processing module 212 is used to control and manage the operation of the information receiving device, for example, the processing module 212 is used to perform the steps of performing message or data processing on the information receiving device side, for example, to support the information receiving device to execute the Step 105.
  • the communication module 213 is used to support the information receiving apparatus to execute step 104 in the above embodiment. And/or other processes performed by the information receiving device for the techniques described herein.
  • the information receiving device may further include a storage module 211 for storing program codes and data of the information receiving device.
  • the processing module 212 may be a processor or a controller, for example, it may be a central processor unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present invention.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a digital signal processor and a microprocessor, and so on.
  • the communication module 213 may be a transceiver, a transceiver circuit, a communication interface, or the like.
  • the storage module 211 may be a memory.
  • the processing module 212 is the processor 1211
  • the communication module 213 is the communication interface or transceiver 1212
  • the storage module 211 is the memory 1213
  • the information receiving apparatus involved in the present application may be the device shown in FIG.
  • each unit in the device can be implemented in the form of software calling through processing elements; they can also be implemented in the form of hardware; some units can also be implemented in software through processing elements, and some units can be implemented in hardware.
  • each unit can be a separate processing element, or it can be integrated in a chip of the device.
  • it can also be stored in the memory in the form of a program, which is called and executed by a processing element of the device.
  • All or part of these units can be integrated together or can be implemented independently.
  • the processing element described here may be an integrated circuit with signal processing capabilities.
  • each step of the above method or each unit above may be implemented by an integrated logic circuit of hardware in a processor element or in the form of software invoking through a processing element.
  • the unit in any of the above devices 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 Multiple microprocessors (digital processor, DSP), or one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc.
  • ASIC Application Specific Integrated Circuit
  • DSP digital processor
  • FPGA Field Programmable Gate Array
  • the unit in the device can be implemented in the form of a processing element scheduling program
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call a program.
  • CPU central processing unit
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • the above receiving unit is a communication interface or communication interface of the device, which is used to receive signals from other devices.
  • the receiving unit is a communication interface or communication interface that the chip uses to receive signals from other chips or devices.
  • the above sending unit is a communication interface of the device, which is used to send signals to other devices.
  • the sending unit is a communication interface or communication interface used by the chip to send signals to other chips or devices.
  • FIG. 17 is a schematic structural diagram of a chip 150 provided by an embodiment of the present invention.
  • the chip 150 includes at least one processor 1510 and a communication interface 1530.
  • the chip 150 further includes a memory 1540.
  • the memory 1540 may include a read-only memory and a random access memory, and provide operation instructions and data to the processor 1510.
  • a part of the memory 1540 may further include non-volatile random access memory (non-volatile random access memory, NVRAM).
  • the memory 1540 stores the following elements, executable modules or data structures, or their subsets, or their extensions:
  • the corresponding operation is performed by calling the operation instruction stored in the memory 1540 (the operation instruction may be stored in the operating system).
  • One possible implementation manner is that the structures of the chips used by the first terminal and the second terminal are similar, and different devices may use different chips to achieve their respective functions.
  • the processor 1510 controls operations of the first terminal and the second terminal, and the processor 1510 may also be referred to as a CPU (central processing unit).
  • the memory 1540 may include a read-only memory and a random access memory, and provide instructions and data to the processor 1510. A portion of the memory 1540 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the memory 1540, the communication interface 1530, and the memory 1540 are coupled together through a bus system 1520.
  • the bus system 1520 may also include a power bus, a control bus, and a status signal bus. However, for clarity, various buses are marked as the bus system 1520 in FIG. 17.
  • the information sending method or information receiving method disclosed in the above embodiments of the present invention may be applied to the processor 1510 or implemented by the processor 1510.
  • the processor 1510 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the above steps of the information sending method or the information receiving method may be completed by instructions in the form of hardware integrated logic circuits or software in the processor 1510.
  • the aforementioned processor 1510 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or Other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • the disclosed methods, steps, and logical block diagrams in the embodiments of the present invention may be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied and executed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, and registers.
  • the storage medium is located in the memory 1540, and the processor 1510 reads the information in the memory 1540, and completes the steps of the above method in combination with its hardware.
  • the communication interface 1530 is used to perform the steps of receiving and sending the first terminal and the second terminal in the embodiment shown in FIG. 6.
  • the processor 1510 is used to execute the steps of the processing of the first terminal and the second terminal in the embodiment shown in FIG. 6.
  • the instructions stored in the memory for execution by the processor may be implemented in the form of computer program products.
  • the computer program product may be written in the memory in advance, or may be downloaded in the form of software and installed in the memory.
  • 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.
  • Computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions can be transmitted from a website site, computer, server, or data center by wire (e.g. Coaxial cable, optical fiber, digital subscriber line (DSL) or wireless (such as infrared, wireless, microwave, etc.) to another website, computer, server or data center.
  • wire e.g. Coaxial cable, optical fiber, digital subscriber line (DSL) or wireless (such as infrared, wireless, microwave, etc.
  • the computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server, a data center, or the like that includes one or more available medium integration.
  • 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, SSD), or the like.
  • a computer storage medium in which instructions are stored in a computer-readable storage medium, and when the instructions are executed, the first terminal or the chip applied in the first terminal executes steps 101, 102 and Step 103. And/or other processes for the techniques described herein that are performed by the first terminal or a chip applied in the first terminal.
  • the foregoing readable storage medium may include various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk, or an optical disk.
  • a computer storage medium in which instructions are stored in a computer-readable storage medium, and when the instructions are executed, the second terminal or the chip applied in the second terminal executes steps 104 and 105 in the embodiment . And/or other processes for the techniques described herein that are performed by the second terminal or a chip applied in the second terminal.
  • a computer program product containing instructions.
  • the computer program product stores instructions, and when the instructions are executed, the first terminal or the chip applied in the first terminal executes steps 101 and 102 in the embodiment ⁇ 103 ⁇ And step 103. And/or other processes for the techniques described herein that are performed by the first terminal or a chip applied in the first terminal.
  • a computer program product containing instructions.
  • the computer program product stores instructions.
  • the second terminal or the chip applied in the second terminal executes steps 104 and 104 in the embodiment. 105. And/or other processes for the techniques described herein that are performed by the second terminal or a chip applied in the second terminal.
  • a chip is provided.
  • the chip is applied to a first terminal.
  • the chip includes at least one processor and a communication interface.
  • the communication interface and at least one processor are interconnected by a line.
  • the processor is used to execute instructions to execute the embodiments. Step 101, Step 102 and Step 103. And/or other processes performed by the first terminal for the techniques described herein.
  • a chip is provided.
  • the chip is applied to a network device.
  • the chip includes at least one processor and a communication interface.
  • the communication interface and at least one processor are interconnected by a line.
  • the processor is used to execute instructions to execute the implementation in the embodiments Step 104 and step S105 in the example. And/or other processes performed by the second terminal for the techniques described herein.
  • the present application provides a communication system including: a first terminal using the structure shown in FIG. 12 and a second terminal using the structure shown in FIG. 12.
  • the present application provides a communication system including: a first terminal using the structure shown in FIG. 13 and a second terminal using the structure shown in FIG. 15.
  • the present application provides a communication system including: a first terminal using the structure shown in FIG. 14 and a second terminal using the structure shown in FIG. 16.

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

Abstract

Une solution d'après un mode de réalisation de la présente invention comprend les étapes au cours desquelles : un premier terminal génère des informations de rétroaction destinées à un deuxième terminal ; le premier terminal génère des premières informations en fonction des informations de rétroaction et d'un identifiant du deuxième terminal ; et le premier terminal envoie les premières informations au deuxième terminal. Par conséquent, lorsqu'il reçoit les premières informations, le deuxième terminal peut confirmer que les informations de rétroaction dans les premières informations lui sont destinées. De plus, lorsque des terminaux peuvent sélectionner eux-mêmes des ressources de liaison latérale, si une ressource de liaison latérale sélectionnée par un autre terminal est la même qu'une ressource de transmission utilisée pour une communication effectuée entre le premier terminal et le deuxième terminal, ledit terminal peut confirmer que les informations de rétroaction ne lui sont pas destinées. L'invention peut empêcher un troisième terminal de réaliser une détermination erronée lorsqu'il évalue par erreur que des informations de rétroaction lui sont destinées, ce qui accroît la fiabilité de l'utilisation d'une liaison latérale pour effectuer une transmission. L'invention est applicable à un réseau de l'Internet des véhicules, tel un réseau V2X, un réseau LTE-V et un réseau V2V. Elle est également applicable à des domaines tels que la communication D2D, la conduite intelligente et les véhicules connectés intelligents.
PCT/CN2019/107301 2018-11-28 2019-09-23 Procédés et dispositif d'envoi et de réception d'informations Ceased WO2020108043A1 (fr)

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